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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.777 by jmc, Tue Mar 13 22:02:39 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint58w_post
8    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
9      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
10      (and replace horiVertRatio in NH code).
11      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
12                         and tutorial_plume_on_slope (sensitive to truncation)
13    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
14      directly to drive seaice model (C-grid only)
15    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
16     - reintroduce computation of wind from stress,
17     - compute tau (in exf_bulkformulae.F) from windstress averaged to
18       mass points to avoid tau = 0
19     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
20    o rdmnc.m: make it work with "global" files created with gluemnc
21    o rdmnc.m : some improvements in dealing with singleton dimension
22      (tested on all testreport mnc output files).
23    o genmake2: disable pkg/profiles if netcdf test fails.
24    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
25    o move call to cal_readparms up to make calendar parameters/variable available
26      to all packages
27    
28    checkpoint58v_post
29    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
30      useDynP_inEos_Zc tested.
31    o pkg/exf: changes to properly interpolate/mask/scale initial fields
32    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
33      and portions thereof.  See read_cs.txt for description and examples.
34    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
35      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
36      following the great-circle arc between those 2 points.
37    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
38      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
39    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
40     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
41     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
42     - still needs work (not working with some options ; efficiency to improve)
43       and serious testing.
44     - use this scheme for temperature & salinity in 2 advection test exp.:
45       advect_xy & advect_xz, respectively.
46    
47    checkpoint58u_post
48    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
49    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
50    o testreport: add option "-skipdir" to skip some test.
51    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
52      momentum calculation.
53    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
54    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
55      remove checkpoint.F and the_correction_step.F (no longer used);
56      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
57    o add option (linFSConserveTr) to correct for tracer source/sink due to
58      Linear Free surface
59    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
60    o pkg/thsice: fix reading mnc-pickups
61    
62    checkpoint58t_post
63    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
64    o pkg/mdsio:
65     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
66       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
67       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
68     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
69     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
70       either MDS_READ_FIELD or MDS_WRITE_FIELD )
71     - new S/R (to replace MDSWRITEMETA), which allows to write more
72       informations (variable names, time ...) to meta files.
73     - modify rdmds.m to give back the meta file content.
74    o pkg/diagnostics: change vertical interpolation to be safer, and more
75       flexible (define p-levels to interpolate to in data.diagnostics);
76      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
77       diagnostic pointer.
78    o pkg/seaice: more cleaning up of seaice_growth, added many comments
79    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
80    o fix multi-category seaice:
81     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
82       SEAICE_MULTICATEGORY
83     - fix short wave heat flux
84    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
85       and allow to use EVP solver. Change forward lab_sea: test both EVP
86       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
87    o Initial check-in of lab_sea adjoint
88      (very similar to natl_box_adjoint/code_seaice)
89      * used C-grid and EVP solver
90      * used KPP, GM/Redi
91      * uses inAdExact=.TRUE.
92      * gradient checks fail for both ADM and TLM
93        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
94        f.d. gradients actually seem more problematic than ADM, TLM gradients;
95        issue is related to forward mismatch between g77 an ifort
96    o pkg/seaice: overhaul of thermodynamics
97     - growth.F and groatb.F are replaced by new routine seaice_growth.F
98     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
99     - move a few global fields out of SEAICE.h into seaice_growth.F and
100       make them 2D (FICE/QNETO/ ...)
101     - remove FO (it is the same as QNETO)
102     - introduce a few local fields to avoid modifying external fields such
103       as atemp, etc.
104    
105    checkpoint58s_post
106    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
107      changed exf_set_gen.F so that
108        genperiod=0 means input file is one time-constant field and
109        genperiod=-12 means input file contains 12 monthly means
110    o CG2D: use pre-computed solver main-diagonal (stored in common block);
111      this affects truncation error ; generate new output file for exp. which
112      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
113        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
114        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
115        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
116        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
117        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
118    o start implementation of deep-atmosphere and anelastic formulation
119    o verification: remove 2nd copy of input files and use script "prepare_run"
120      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
121    o mom_common/vecinv/fluxform: fix a few initialisation isssues
122    o profiles: fix for multithreaded case
123    
124    o diagnostics: rename few diags:
125      s/'PRESSURE'/'RCENTER '/g
126      s/'TICE    '/'oceFreez'/g
127      s/'TAUX    '/'oceTAUX '/g
128      s/'TAUY    '/'oceTAUY '/g
129      s/'SWFLUX  '/'oceQsw  '/g
130      s/DIFx/DFxE/g
131      s/DIFy/DFyE/g
132      and add few ocean-forcing diagnostics:
133      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
134    o modifications to pkg/seaice/growth.F and budget.F, which change results of
135      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
136      as actual snow thickness.  It now refers everywhere to effective snow
137      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
138    
139    checkpoint58r_post
140    o modifications to pkg/seaice/growth.F, which change results of
141      lab_sea experiment: fixes pertain to melting snow over open water, to
142      masking EVAP under sea ice, and to using the correct AREA variable for
143      computations of EVAP, PRECIP, HSNOW, and GHEFF
144    o add ability to read bathy, salt, and theta using MNC (off by def)
145    o add flooding algorithm and advection of HSNOW for pkg/seaice;
146      both are turned off by default and do no change any results
147    o seaice advection with pkg/thsice: a step toward the use of non-linear
148      advection scheme, but #ifdef or commented out for now (requires more EXCH).
149    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
150      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
151      in natl_box (affects results @ truncation level: update output.txt)
152    o multi-threading and IO:
153      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
154      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
155        (needed to work with SingleCpuIO): tested in all verif. exp.
156    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
157      affects the results (but none of the verification test uses this scheme).
158    o Adding some pkg/diagnostics capability to pkg/seaice
159      (will certainly be subject to changes)
160    o ctrl: adding new control variables:
161      lwflux, lwdown, evap, snowprecip, apressure, runoff
162    
163    checkpoint58q_post
164    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
165      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
166      high_res_cube configuration by 4% on Columbia.
167    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
168      add (in global_with_exf/code) a version of EXF_INTERP_READ without
169      dynamical allocation (seems to work in multi-threaded).
170    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
171      single CPU io) so that TAF does not have to see EESUPPORT.h
172    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
173    
174    checkpoint58p_post
175    o obcs: stop if obcs is used with useCDscheme = .true.
176    o shelfice:
177     - fix a sign error so that no slip at shelfice interface works
178     - remove stop for combination non-hydrostatic code and shelfice. That does
179       not mean, that the results are correct, but at least they are numerically
180       stable
181    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
182    o added adjoint exch routined for all exch*3d* routines
183      and updated flow directives
184    
185    checkpoint58o_post
186    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
187      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
188    o change controling S/R for writing pickup file (new S/R do_write_pickup)
189      and clean-up reading/writing of pickup files.
190    o fix local version of read/write pickup (NH part) in rotating_tank/code
191    o simplify EXCH interface:
192     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
193     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
194    o added the regrid package
195    o shelfice:
196     - add a simple boundary layer scheme to reduce noise
197     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
198    
199    checkpoint58n_post
200    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
201       local variable (not in common block).
202    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
203      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
204      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
205        to work with SingleCpuIO.
206    o add "_d 0" to real constant of pkg/cfc subroutines ;
207       update exp. cfc_exemple & tutorial_cfc_offline output files.
208    o multi-threading and IO:
209      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
210        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
211      - barrier before and after reading.
212      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
213      - avoid using MDS_WRITELOCAL for LAND pkg output.
214      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
215        common-block variables ; Allows multi-threading with master-thread IO.
216    o change default MAX_NO_THREADS from 32 to 4 ;
217      and stop cleanly when MAX_NO_THREADS is too small.
218    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
219    
220    checkpoint58m_post
221    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
222       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
223    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
224       keep global_ocean.90x40x15 (for AD testing) with former secondary test
225       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
226    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
227        add MITgcm_tutorials (= code + all the tutorials)
228    o ecco, option to compute cost for total ssh (mean+anom)
229    o consistent with addition of ptracer and ssh in pkg/profiles
230    o profiles: adding ptracer and ssh
231    o testreport: change multi-test output-file name
232      (from output.txt.{name} to output.{name}.txt)
233    o profiles: now ok for mutli-tiles case
234    o seaice: add 4 parameters for different advection schemes for area,
235      (effective) seaice thickness, enthalphy, and snow height. Their default
236      is the standard parameter SEAICEadvScheme
237    o calc_gw:
238     - add cosFacU in zonal viscous flux (harmonic.visc.).
239     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
240       of tutorial_plume_on_slope.
241    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
242    o calc_gw: true flux-form, account for horizontal grid spacing.
243      update rotating_tank results, but not plume_on_slope (affected at
244      truncation level, 11 digits).
245    
246    checkpoint58l_post
247    o calc_gw:
248     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
249     - remove side-drag for now (need to fix it); update plume_on_slope results.
250     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
251    o commit code to make SST/SSS weights spatially variable
252      (based on either variable in-situ or variable initial T/S weights)
253    o pkg/ecco:
254      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
255        now based on horizontally varying weights wthetaLev, wsaltLev
256      * cost_averagesflags now returns year indices in addition to day, month
257      * sflux balance is performed on annual basis
258        (sflxumm, sfluxmm2, bal_sfluxmm)
259      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
260        including separate counting and multipliers
261    o pkg/rbcs
262      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
263    
264    checkpoint58k_post
265    o testreport:
266     - always build in dir. "build" (if not there, mkdir build instead of building
267       & running in input)
268     - run in dir run (if it exists), in build otherwise.
269     - call prepare_run (if input/prepare_run exists)
270     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
271    o pkg/exf modifications to interpolation and rotation routines for more
272       reasonable treatment of North Pole singularity: for tracers North Pole
273       value is set to northernmost zonal-mean value, for zonal velocity it is
274       set to zero, and for meridional velocity it is set to northernmost value.
275    o pkg/exf/exf_check_range.F
276     - add tile index to diagnostics and move stop statement to the very
277       end of the routine.
278    o pkg/diagnostics: (diagnostics_main_init.F)
279      define title of isomorphic variables according to the current config.
280    o pkg/thsice with pkg/seaice dynamics:
281    - fix domain of computation (interior only, required for exf) and do exchanges
282    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
283    o towards a standard way of dealing with multi-threading in MONITOR
284      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
285    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
286       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
287    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
288    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
289    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
290       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
291    o tracer advection:
292     - clean-up and simplify calc_common_factors.F
293     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
294       advection subroutine (but still not used within DST advection S/R)
295    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
296    
297    checkpoint58j_post
298    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
299      from file (collects calls previously in FORWARD_STEP)
300    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
301    o adjoint store dir. adjusted accordingly
302    o genmake2
303      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
304    
305    checkpoint58i_post
306    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
307      on wind stress (SEAICEstressFactor defaults to 1.)
308    o Total number of Timers is finite (<=40): comment out 2 non-essential one
309      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
310    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
311      on CS-grid: no longer loosing mass.
312    o exf & curvilinear-grid: no longer modify longitude xC & xG.
313    o pkg/ggl90: fix sloppy output and fix a bug
314    o pkg/seaice: added SEAICEuseEVPpickup parameter
315      - Set to false in order to start EVP solver with
316        non-EVP pickup files when using SEAICEuseEVP
317      - fix sign error in diffusion in seaice_calc_rhs
318    
319    checkpoint58h_post
320    * Modifications for bottom topography control
321      o replace hFacC by _hFacC at various places
322      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
323      o add non-self-adjoint cg2d_nsa
324      o update autodiff support routines
325      o re-initialise hfac after ctrl_depth_ini
326      o works for 5x5 box, doesnt work for global_ocean.90x40x15
327    * Adding verification for 5x5 box (4-layer) bottom topography control
328    
329    checkpoint58g_post
330    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
331       used for mean seasonal cycle, mean diurnal cycle); add an example
332       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
333    o pkg/ggl90:
334      - add parameter (minimum surface kinetic energy)
335      - fix bug (avoiding division by zero)
336    o couple pkg/thsice to pkg/seaice:
337      - modify advection in seaice to accomodate new scalar fields to be advected
338      - only muliDimAdection scheme work with seaice/thsice
339      - mapping of thsice-variables to seaice-variables, back and forth
340      - does not break the verification experiments, but does not give the
341        desired results either
342    o pkg/seaice
343      - make (default) second order advection a bit less confusing?
344    
345    checkpoint58f_post
346    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
347      to pkg/seaice):
348      - new routines thsice_map_exf and thsice_get_exf provide the interface
349      - add an additional formal parameter to thsice_solve4temp
350    o pkg/exf:
351      - add new fields wspeed, snowprecip (to be able to couple to thsice)
352      - correct Stefan-Boltzmann constant
353      - new parameter for longwave surface emittance
354      - separate some stuff from exf_bulkformulae into new routines  
355        exf_radiation, exf_wind
356      - add new parameters and constants: longwave emissivity for ocean, ice
357        and snow, evaporation parameters over ice
358      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
359        either wind from stress or stress from wind
360    o pkg/thSIce:
361    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
362    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
363       and THSICE_CALC_THICKN
364    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
365    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
366      to make debugging easier.
367    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
368    o pkg/bulk_force:
369      - clean-up comments and parameters ;
370      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
371    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
372      generate new output for test-experiment: aim.5l_cs.thSI
373    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
374      testreport accordingly
375    
376    checkpoint58e_post
377    o SEAICE_CGRID adjoint done
378    o R_STAR adjoint implemented.
379      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
380      * need to sort out init. of h0facc, etc.
381    o Make pkg/profile fully independent of ecco,cost, etc. stuff
382      to be able to use it in pure forward.
383    
384    checkpoint58d_post
385    o upgrade simple test-experiment to tutorial example:
386     step.1: duplicate the experiment and (step.2) will remove the old copy.
387      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
388      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
389      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
390      tutorial_global_oce_biogeo    <- copy of dic_example
391      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
392      tutorial_plume_on_slope       <- copy of plume_on_slope
393      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
394      tutorial_global_oce_optim     <- empty for now (David ?)
395      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
396     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
397    o correct a sign problem in cost_scat.F
398    o obcs and ptracers: fix boundary conditions for advections schemes
399      with larger stencil
400    o thsice adjoint: start
401    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
402      completeness
403    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
404      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
405    o ptracers adjoint:
406      * avoid extensive recomputatations
407      * fix missing re-init. of gptr (missed by TAF)
408    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
409      me to turn off the excessive output to STDOUT that this package produces
410    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
411      and add those terms in Vector-Invariant formulation.
412    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
413      if the control period (xx_hfluxperiod etc) is 0
414    o in profiles pkg, clean routines and fix details
415    o in ecco pkg, reading ssh data:
416      fix problem in case the model does not start at iter0=0
417    o fix mnc-pickup/restart for ptracers
418    o new package prifiles:
419      code to compute profile-based cost by Gael Forget
420      (modifs in ecco, ctrl, autodiff)
421    o Benign bug fix in initialization (spotted by M. Mazloff) of
422      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
423    
424    checkpoint58c_post
425    o adjoint: finish NLFS adjoint and provide reference output in
426      verification/global_ocean.90x40x15/results_ad_nlfs
427    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
428      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
429      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
430      with SEAICE_CGRID defined.
431    o move calendarDumps from "data" to "data.cal" and clean-up the code
432      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
433    o add useEXF & useCAL flags (for now, set in hard-coded way)
434    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
435      (were missing in NH mode, and wrong in quasihydrostatic mode).
436      waiting for Chris updated version of calc_gw to add those CALLs.
437    o fix bug in quasihydrostatic S/R ;
438      add a test for this option: global_ocean.90x40x15.qshyd
439    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
440      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
441    o add on/off flag useOffLine for package OFFLINE
442    o seaice:
443      - modify advection so that it works also on the C-grid
444      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
445        problem in multi-tile runs with C-grid
446      - add flags for clipping ice velocities and/or masking solver forcing
447      - fix drag (ocean on ice) formulation and a bug that caused noise in the
448        C-grid solver
449      - added a few comments to seaice_diffusion.F
450      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
451        are now exclusive)
452      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
453        required re-ordering the code a little:
454       + make DAIRN global variable (defined in SEAICE)
455       + move computation of the viscosities eta and zeta into a new separate
456         routine (because I need to recompute them in seaice_ocean_stress.F)
457    
458    checkpoint58b_post
459    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
460      update output.txt of exp. aim.5l_cs.thSI
461    o various mnc cleanups and improvements:
462      + shrink lookup tables by factor of ~4
463      + better error reporting when running out of lookup space
464      + able to handle longer path/file names (up to 500 chars)
465    o adjoint:
466      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
467      - TBD: "hidden" mom_vecinv recomp. in dynamics
468    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
469     (allow to differentiate between forcing components using new integer flags:
470      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
471     and add new flag to put Dissipation tendency out of Adams-Bashforth.
472    o ecco
473      - enable trend removal from SSH anomaly obs.
474    o adjoint
475      - a fix for PmEpR when #undef EXACT_CONSERV
476      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
477      - try to fix "hidden" recomp. in forward_step for NLFS
478        (NLFS seems broken sometimes after I checked it in)
479    o seaice:
480     - add c-grid version of the dynamic solver:
481       + three new routines that are the c-grid substitute lsr, dynsolver
482         and ostres
483       + put a few fields that were local to dynsolver into global common
484         blocks, so that I can move the computation of stresses etc into
485         seaice_lsr (saves coding but may break the adjoint).
486     - replace more hardwired parameters by runtime parameters
487     - add ice masks that mask the rhs of the implicit solvers where there
488       is no ice (commented out in seaice_dynsolver, because i am not sure
489       if this works properly), eventually this should replace the clipping
490       of ice velocities in seaice_dynsolver to +/-40cm/s.
491    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
492      include it only where its needed
493    o move balancing of fluxes before the call of external_forcing_surf
494    o seaice:
495      - correct units of turning angles (now they are really in degrees)
496      - move computation of GWATX/Y out of main routine into dynsolver
497      - initialize GWATX/Y in seaice_init
498    o Apply mask on Fresh-Water flux (needed for SSH forcing).
499      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
500    o seaice: add runtime flags for turning angles (default to zero)
501    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
502      and trend from exf forcing and ctrl control adjustments
503    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
504      (since checkpoint57x_post)
505    o change the default rotation period to 86164.s = the Earth rotation
506    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
507      and based on a reference stratification. Tested within hs94.cs-32x32x5.
508    o seaice advection: add code for choosing between the default (2nd order
509      central differences) and multiDim advection schemes provided by
510      pkg/generic_advdiff
511    o seaice:
512      - removed all references to SEAICE_GRID.h fields from
513        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
514        (cubed-sphere configuration will change a little)
515      - grid computations in seaice_init are obsolete now.
516      - cleaned up code a little so that is easier to read (hopefully).
517      - added new (better?) discretizations of default advection and diffusion
518        (turn on with SEAICEuseFluxForm)
519      - replace 1 in 3d global fields by kSurface in growth.F
520      
521    checkpoint58a_post
522    o seaice:
523      - bug fix in advect.F
524    o shelfice:
525      - separate shelfice load anomaly from pload (breaks with time
526        dependent forcing), => introduce constant field shelficeLoadAnomaly.
527        Its default is 0., but it may be computed more cleverly from (unknown)
528        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
529        done offline. A good approximation of the pressure load anomaly is
530        necessary to avoid large initial adjustment processes underneath
531        deep-reaching shelfice.
532      - small fix in ISOMIP shelfice_thermodynamics
533      - add more sophisticated thermodynamics of Hellmer (1989), this is
534        now the default
535      - give a few constants more intuitive names
536    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
537      if bulk formulae are used in long integration (especially EmPmR). Turn
538      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
539      if balancePrintMean, the imbalance that is substracted is printed to
540      STDOUT.
541    o fix bug (typo) in obcs_apply_eta.F
542    o add a new package shelfice which enables us to model the circulation
543      underneath shelf-ice with draughts of hundreds of meters.
544     - works
545     - to do: + include improved thermodynamics
546              + check whether kSurfC (from model/inc/SURFACE.h) can be used
547                instead of new field kTopC
548              + can we use topoFile, Ro_surf and existing code in ini_depth.F
549                instead of new field R_shelfIce and new code in ini_depth.F
550                and ini_mask_etc.F?
551              + adjust vertical mixing schemes?
552    o seaice pkg:
553     - add a cpp-flag to include a simple formula for a salinity dependent
554       freezing point of sea water at the surface
555     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
556       meridional stresses are now different (and hopefully correct)
557    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
558       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
559       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
560    o pkg/diagnostics: add options and parameters for regional-statistics
561       diagnostics ; define regions by reading a region-mask from a file
562       (might add other options later)
563    o pkg/bulk_force:
564     - add option and parameters to use AIM surface-flux formulae.
565     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
566       others forcing fields (defined in PARM05, parameter file "data") are loaded
567       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
568     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
569     - use the right EXCH call for uwind,vwind (to work on CS-grid).
570     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
571       and parameters (note: calcWindStress replaces .NOT.readwindstress).
572     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
573    
574    checkpoint58
575    o add "--embed-source" option to genmake2 which, when the supporting
576      tools can be compiled (as determined by genmake2) will turn on the
577      embed_files package which then embeds the entire MITgcm source code
578      (*.[fFhc] + Makefile) used for the build within the executable
579      - requested by CNH but off by default
580      - adds a paltry <9MB to the mitgcmuv executable in most cases
581      - only writes the output when useEMBEDSRC in eedata is true
582    o clean up 3-dim. relaxation codes:
583      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
584      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
585      * Thanks to Tom Haine for testing!
586    
587    checkpoint57z_post
588    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
589      affects output (@ truncation level) of exp. plume_on_slope ; updated.
590    o fix the pickup behavior for obcs in combination with ptracers
591    o fix a bug in ptracers_external_fields_load
592    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
593      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
594    o transfered surface NH pressure to eta field (if exactConserv).
595    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
596         and update lab_sea output.txt file.
597    o completing 3-dim. relaxation code: additional term
598         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
599      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
600      * At compile time, in "EXF_OPTIONS.h" set
601          #define  ALLOW_CLIMTEMP_RELAXATION
602          #define  ALLOW_CLIMSALT_RELAXATION
603      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
604          tauThetaClimRelax3Dim = 15552000.0,
605          tauSaltClimRelax3Dim  = 15552000.0,
606      * 3 cases:
607          1) Use a constant-in-time 3-dim. field
608          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
609          3) Real-time relax. to time-evolving prescribed field
610    o Adding Laplacian-type smoothness constraint on
611      initial and boundary (forcing) controls (ic, bc)
612      * enable at compile-time via
613        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
614      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
615      * Absolute scale somewhat unclear so far
616      * no area weighting was included since no other cost term does so far
617    
618    checkpoint57y_post
619    First step for a NLFS adjoint
620    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
621    o new init. routines for calc_r_star, calc_surf_dr
622    o still need to deal with ini_masks_etc
623    o testreport seemed happy
624    checkpoint57y_pre
625    
626    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
627    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
628    o add new offset feature to offline pkg (plus minor cleanup)
629    o cfc fixes for final year of integration
630    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
631      be in GCHEM_OPTIONS).
632    
633    checkpoint57x_post
634    o fix testreport Pb in multiple test experiment.
635    o cleanup our namelist syntax in verification:
636      - make it more F95 standards compliant (some work still needed)
637      - allows the vast majority of our tests to work with gfortran
638    o Non-Hydrostatic:
639     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
640     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
641    o Allow to apply AB on T,S rather than on AB(gT,gS):
642     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
643     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
644       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
645     - need a "clever" read_pickup to restart from the other AB formulation
646    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
647    o remove some unused variables (reduces number of compiler warnings)
648    o adjoint
649      * Disable useVariableViscosity for adjoint for time being
650        (there are a number of extensive recomputations)
651      * Initialize certain variables needed for adjoint
652    
653    checkpoint57w_post
654    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
655                 fix the singleCpuIO RS version of MDSWRITEFIELD
656       and add a WARNING if using globalFiles=T with multi-processors.
657    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
658      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
659    o tracer advection scheme:
660      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
661       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
662       was not very convenient).
663      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
664       (further tests needed for the implicit DST & Flux-Limiter schemes).
665    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
666      and sRef for convenience, handy, when you want to initialize
667      ptracers in a large domain with a constant non-zero value. Also,
668      untangle ptracers_init.F a little.
669    
670    checkpoint57v_post
671    o change dome exp. to use variable viscosity in side-drag terms.
672    o remove all the files from the cfc_offline test since they are now
673      incorporated into tutorial_cfc_offline which has been producing
674      identical results for a few days of testing
675    o add new parameter: sideDragFactor to enable half-slip-side BC
676      and change side-drag S/R to use viscosity from mom_calc_visc
677      (can switch back by setting sideDragFactor=0.); affects results at
678      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
679       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
680    o vorticity & strain are now computed without masking, to account for
681      no-slip-side BC in variable viscosity calculation ; mask is applied
682      anyway later on, before computing advection/coriolis terms.
683    o modify exp4 to test new obcs support for reading from external files
684      and for passive tracers
685    o fix behavior of ptracers_monitor when monitor output is written to a
686      netcdf-file; still not independent of monitor.F (writes in the same
687      file).
688    o change default value of tRef (put a uniform, meaningful value for ocean
689      & atmos) and initialize sRef (was missing, as Martin mentioned).
690    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
691      to be proportional to enstrophy dissipation length.  Thus,
692       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
693      This is now consistent with Smagorinsky and with the manual.
694    
695    checkpoint57u_post
696    o OBCS and PTRACERS: add open boundary support for passive tracers
697      - either use homogenous (pseudo) v.Neumann conditions or prescribe
698        OB-values from file; this is not different from the way theta and salinity
699        are treated
700      - however, Orlanski-radiation conditions are not supported, and the model
701        will stop if you use pTracers and Orlanski at the same time.
702      - beefed up the rountine obcs_external_fields_load: now only those open
703        boundary values are overwritten with values from files for which there
704        are really files, otherwise the OB-fields remain untouched. This makes
705        it possible to use different OBs at different ends of the domain (as
706        with EXF)
707    o reduce number of exch calls in shap_filt (s2).
708    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
709      truncation level) 4/5 MLAdjust test results (11&12 digits match).
710    
711    checkpoint57t_post
712    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
713    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
714      same truncation, independent of the face number: affects affects several
715      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
716    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
717      note that biharmonic viscosity + no-slip was not tested in any experiment.
718    o fix bug in non-linear free-surf side-drag ; generate new output for
719      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
720    o make mnc honor the writeBinaryPrec flag for most kinds of output
721    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
722    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
723      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
724    o add brackets in multi-terms sum to get same truncation, independent of
725      the face number (manage to get exactly same value of gU,gV at the cs-edge)
726      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
727    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
728      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
729      a maximum grid-scale Reynolds number.  Also, changes all length calculations
730      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
731      Suggested values of viscosity parameters found in mom_calc_visc.
732      Many new viscosity diagnostics available.
733    
734    checkpoint57s_post
735    o Add clearing-house for viscosity calculations, mom_calc_visc and
736      correct numerous bugs in LeithD and Smagorinsky discretizations.  
737      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
738      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
739      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
740      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
741      The Strain-Tension form is now called with useStrainTensonVisc=.true.
742      ViscAhStrain and viscAhTension are now retired.
743    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
744    o In response to JMC's bug report, genmake2 now ignores any soft-links
745      that it finds in the *current* directory when searching for files.
746      Soft-links found in any other source directories will still work as
747      they did before.
748    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
749      a C routine to unlimit the stack size
750    o mnc-ify pkg/aim snapshot vars
751    o mnc-ify pkg/land as requested by Daniel
752    o various changes to mnc including:
753      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
754      - output can now be grouped so that all files within a group
755          change the ITER portion of their names in lock-step together
756      - can now read ("global") PER-FACE (in addition to PER-TILE) files
757          and works with both EXCH1 and EXCH2 (but needs more testing)
758      - writing works for all verification test cases w/ g77 on Linux
759    
760    checkpoint57r_post
761    o make MNC variable initialization happen earlier
762    o add diagnostics for (almost) each term of the momentum Eq.
763    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
764    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
765    o remove MINIMAL_TAVE_OUTPUT option ;
766      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
767    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
768      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
769    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
770    o add time-dependent SST, SSS control
771    o cost terms in ecco/ modularized (new cost_generic.F)
772    o cost_averages routines are modularized (new cost_averagesgeneric.F)
773    o new infrastructure for seaice model vs. obs misfits in seaice/
774      * driver from the_main_loop.F is seaice_cost_driver.F
775      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
776      * gradient check in Exp. 6a of natl_box_adjoint/
777    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
778      (see README file)
779    
780    checkpoint57q_post
781    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
782    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
783      - bug was reported by Jean-Michel and Ian Fenty
784    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
785      update exp. cpl_aim+ocn output.
786    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
787      Needed for high-res. runs with large global files
788      to be able to limit tapelev size
789    o Changed some tests for adjoint:
790      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
791      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
792      * global_ocean.90x40x15/ back to default 3-level checkpointing
793    o Modifications to enable scripted COMMON to MODULE conversion
794      * verification/OpenAD/code/ has necessary scripts and description;
795      * converts, compiles and runs successfully;
796    
797    checkpoint57p_post
798    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
799    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
800      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
801    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
802    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
803      (was already the case for dissipation with mom_vecinv,
804       and also the case for grad.PhiHyd when staggered-timeStep)
805      This will allow to put dissipation out-off the AB time-stepping.
806     Unfortunately, affects truncation error. Update output of exp. that "fails"
807      (cg2d matching number) and leave the others for later: front_relax(10),
808      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
809      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
810    
811    checkpoint57o_post
812    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
813      (2) its ready to be documented during the 20050801 DocFest
814    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
815      for ideal_2D_oce and lab_sea on linux_ia32_g77
816    o set to #undef CTRL_SET_OLD_MAXCVARS_30
817      in global1x1_tot/code_seaice_adj to access indices 32, 33
818      (worth another tag)
819    
820    checkpoint57n_post
821    o adding precip control xx_precip 32
822    o adding swflux control xx_swflux 33
823    o Replacing 10 forcing penalty cost routines by 1 generic.
824    o Implementing partitioning in time-mean and variable adjustment
825      for atmos. state.
826    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
827    o in natl_box_adjoint:
828      * updated exp 1 to 10
829        (but does not have time-mean vs. variable split results yet)
830    o updated global1x1/*_seaice_adj/
831      to incorporate latest changes
832    o enable useSingleCpuIO for mdsio vector routines
833      (applies in particular to tapelev I/O)
834    o removed inefficient K-loop in all active_file*control*.F
835    
836    checkpoint57m_post
837    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
838      and advect_cs (use EXCH-2 and standard cs-32 grid files).
839    o pkg/exch2: filling of face-corner halo regions is optional
840      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
841    
842    checkpoint57l_post
843     tag before updating tutorials (pre-release-2)
844    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
845       for output and interpolation of input fields onto model grid)
846    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
847       Affects results of exp. rotating_tank ; update output.txt.
848    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
849          and taking the square quantity and/or using a fraction-weight field.
850    o fix aim_diagnostics_init.F mate numbers.
851    o add mnc output capability to diagnostics/diagstat and update
852      our cvsignore files for the ACSII output generated
853    
854    checkpoint57k_post
855    o lab_sea now uses diagnostics package and provides a suite of
856      new EXF diagnostics output.
857    
858    checkpoint57j_post
859    o exf
860      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
861        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
862        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
863      * extended diagnostics output
864        - now includes all EXF variables
865        - hs, hl moved to common block
866        - separate S/R for diagnostics, called after ctrl vector is added
867        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
868        - EXFqnet contains true Qnet (i.e. includes qsw)
869      * updated verif. lab_sea, global_with_exf
870      * Rearranging hflux (exf_mapfields -> exf_getforcing)
871        to ensure that diagnostics sees a true EXFqnet
872    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
873    o diagnostics pkg: change pointers so that 1 diagnostic can be used
874      several times with different frequencies.
875    o mnc-ify the thsice package as requested by Daniel Enderton
876      - the monitor--MNC output needs work
877      - many attributes need to be added (most are currently blank)
878    o mnc-ify theaim_v23 package as requested by Daniel Enderton
879      - many attributes need to be added (most are currently blank)
880    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
881    o add Sadourny like discretization to the 4th.O vorticity advection scheme
882    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
883      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
884         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
885    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
886     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
887    
888    checkpoint57i_post
889    o Diagnostics package was changed: diagnostic allocation is now deactivated
890      by setting an empty file name in the namelist (used to be by setting 0 frequency)
891    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
892      add 1rst Order upwind vertical Shear.
893    o add a quick fix for A/B checkpointing in OFFLINE mode
894    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
895      end-run around the C/Fortran linking horror in eesup/src/timers.F
896    o added pkg/runclock: allows user to terminate run based on wall clock
897    o added non-hydrostatic scaling parameter: nh_am2
898    o pkg/my82: futile attempt to make results compiler-independent by adding
899      some "_d 0", etc. no effect.
900    o for mnc output, fill the 'T' coordinate var with myTime and create a
901      separate 'iter' variable for iteration count
902    o pkg/diagnostics:
903      add new capability: output of Global/Regional & per-level statistics ;
904      tested against monitor output (including land & thSIce) on various exp.
905    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
906    
907    checkpoint57h_done
908      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
909      data.diagnostics, data.gchem, data.ptracers) is done.
910    
911    o pkg/diagnostics: prepare for Global/Regional statistics.
912      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
913    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
914      and rename it: DIFFERENT_MULTIPLE
915    
916    checkpoint57h_post
917    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
918    o pkg/diagnostics: change output frequency, now in seconds (instead
919      of Nb of iterations). This requires to change data.diagnostics.
920    checkpoint57h_pre
921    
922    o in mnc, let the user create the output dir if both mnc_outdir_date
923      and mnc_outdir_num are false
924    o add fflags() to pkg/diagnostics which allows one to specify, on a
925      per-file basis, the file precision [default behavior is unchanged]
926    o added diagnostics to pkg/kpp, including computation of mixed layer
927      depth based on a temperature/density criterion
928    o updated verification/natl_box to test the new pkg/kpp diagnostics
929    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
930    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
931    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
932      not mnc -- this mistake was found by JMC and is now corrected
933    
934    checkpoint57g_post
935    o add Adams-Bashforth 3rd Order time stepping:
936      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
937      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
938    checkpoint57g_pre
939    
940    o make lambda[Theta,Salt]ClimRelax spatially varying
941      (default remains spatially uniform constant based on tau)
942    o added new control variables
943      * init. uVel, vVel, etanN
944      * lambda[Theta,Salt]ClimRelax
945    o separate masks used for ctrl_pack/unpack 'from write_grid' output
946      (suggested by G. Forget)
947    
948    checkpoint57f_post
949    o add parameter "baseTime" = model base time = time at iteration zero
950      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
951      account for baseTime shift
952    o move Coriolis arrays from PARAMS.h to GRID.h
953    checkpoint57f_pre
954    
955    o mnc-ifying the seaice package
956    o introduced an alternative length scale calculation for use in the limiting
957      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
958    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
959    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
960      as well as grad(vort3).  Made it compatible with both approximate form
961      for the cubed sphere and full form of these gradients.  Added flag
962      useFullLeith to select between approximate and full form.  
963    o add "d0" in getcon.F to reduce differences between compilers/platforms
964      update output.txt of exp. fizhi-gridalt-hs
965    o change port_rand funtion to allow to set the seed.
966    o fix obscure MNC bug involving conversion between reals and integers
967      - it caused no problems with certain (eg. gcc, ifc) compilers but the
968        new version is now more standards-compliant
969    o adjoint-related modifications
970      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
971      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
972      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
973    
974    checkpoint57e_post
975    o Adding eddy stress controls a la Ferreira et al.
976    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
977    
978    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
979      update output.txt of exp. fizhi-gridalt-hs
980    o add more "Z" dimensions and associated coordinate vars to MNC
981    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
982    o parameter calendarDumps: when set, approximate months (30-31 days) and years
983      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
984      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
985      months and years.  Requires pkg/cal.
986    o diagnostics: add pickup functionality
987      - off by default for backwards compatibility
988      - current version only uses MDSIO -- MNC will be added
989    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
990    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
991    
992    checkpoint57d_post
993    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
994    o modify verification/ideal_2D_oce so that it tests the creation of mnc
995      output from the diagnostics package
996    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
997    o make genmake2 more portable by using ".$FS" instead of ".f" for more
998      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
999    o add coordinate variables to the MNC output from the diagnostics package
1000    o change MNC-flags default value: true when useMNC=TRUE
1001    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1002      the ability (off by default) to read the grid information using MNC
1003    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1004    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1005    o do snap-shot diagnostics at the middle of the time-interval (instead of
1006      at the end).
1007    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1008      new test for AIM with thSIce + slab-ocean
1009    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1010    o move state variable diagnostics to the beginning of the time step ;
1011      (note: still needs some work specially for snap-shot diagnostics)
1012      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1013    
1014    checkpoint57c_post
1015    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1016    o generate new output.txt files on faulks with g77 & the new -ieee option
1017    checkpoint57c_pre
1018    
1019    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1020      update output.txt of exp. global_ocean.90x40x15
1021    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1022      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1023    o add saltFlux(+File) forcing capability with periodicExternalForcing
1024    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1025    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1026    o improvements for the MNC output from DIAGNOSTICS:
1027      - correct handling of the unlimitied dimension
1028      - all dims now have associated coordinate variables
1029      - variables located at U, V, and Corner ("Z") points are now written
1030        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1031        *all* data points are output
1032    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1033    o added pkg/seaice/seaice_monitor.F
1034    o mdsio_readfield.F can now read files visible only to master MPI process.
1035    o pkg/seaice: some test code for ice-modified ocean stress
1036    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1037      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1038      spurious negative numbers for precipitation and humidity.  Will cause
1039      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1040    o pkg/ctrl/
1041      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1042        May be enabled via doPackDiag
1043      *  introduce z-scaling of
1044         + gradient (doZscalePack) and
1045         + control (doZscaleUnpack)
1046    o pkg/mdsio/
1047      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1048      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1049    
1050    checkpoint57b_post
1051    o simplify options in diagnostics_fill arguments (remove weird combinations)
1052    o fix MNC coordinate variables so that they now contain per-face index
1053      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1054      general, EXCH2 grids are only aligned to a "local" coordinate system
1055    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1056    o Implement instantaneous output within pkg diagnostics:
1057      setting a negative frequency in data.diagnostics produces
1058     "snap-shot" output (as opposed to time-average if freq > 0)
1059    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1060      NOTE: change ptracer diagnostics name: use 2 characters to work with
1061            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1062    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1063      becomes the coordinate variable for the 'T' dimension
1064    o add CF-style coordinate variables to MNC
1065      - just a first cut:  numbers are meaningless on the cubesphere and
1066        missing along the T axis but otherwise it works!
1067    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1068    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1069    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1070      this is based directly on what the model compute, so that the content of
1071      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1072    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1073    o clean up build options files for SunOS, in particular
1074      - remove -traditional from xmakedepend
1075      - change -xarch=v9 to -xarch=native for f77
1076      - restore use of make (not gmake)
1077      - add CC=gcc if using g77
1078    o changes per discussion of AM, JMC, & EH3 today:
1079      - move redundant "grid" variables out of "state" -- in preparation of
1080        creating proper CF-style coordinate variables and in recognition
1081        that any/all grid variables can be easily copied (eg. w/NCO) from
1082        the grid files into any of the other NetCDF files
1083      - *always* output grid variables with MDSIO (this will eventually be
1084        changed)
1085      - output MNC grid file if useMNC is true
1086    o every instance of _END_MASTER() has been found and replaced with
1087      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1088      preprocessors
1089    o re-arrange diagnostics pkg initialisation:
1090     - allow each package to extend the available diagnostics list
1091     - add some checking and fix small problems (multi-threaded, ...)
1092     - new S/R diagnostics_fill (replace fill_diagnostics):
1093       look through the short list of active diag. (instead of the long list)
1094       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1095    
1096    checkpoint57a_post
1097    o this set of changes restores TAMC compatibility
1098      tested for global_ocean.90x40x15 adjoint on trough
1099      (what a pain)
1100    
1101    checkpoint57a_pre
1102    o some modifs in tools/build_options for sunos
1103    o call ctrl_pack for ctrl at end for optimcycle=0
1104    
1105    checkpoint57
1106    o add horizontal bi-harmonic viscosity for vertical velocity
1107      - new parameter viscA4W (defaults to viscA4)
1108      - affects only non-hydrostatic code
1109      - to be done: no-slip lateral boundary conditions
1110    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1111    o implement Implicit Vertical advection for pTracers
1112    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1113      (implemented also for implicit vertical diffusion & advection)
1114    o OBCS: extend application of tracer open boundary conditions
1115      to a strip beyond the boundary of width Olx/Oly
1116    o add call monitor to TAF set of required calls (flow directives)
1117      and include in natl_box_adjoint
1118    o untangle a few ifdefs related to cost, ctrl, autodiff
1119      untangel a few ALLOW_ECCO_OPTIMIZATION
1120    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1121      (theta2, salt2 in ecco_cost_weights)
1122    
1123    checkpoint56c_post
1124    o OBCS as control variables
1125      - update ctrl_ad_diff.list, obcs_ad_diff.list
1126      - remove balance of obcs controls from default
1127      - fix index bug nobcs in ctrl_init
1128      - fix dummy fields filen in ctrl_pack
1129      - add dummy weights for obcs
1130    o lsopt: comment out fort.94 output
1131    o optim:
1132      - remove unnecessary header files
1133      - adjusted namelists
1134      - add xerbla.F to Makefile
1135    o exf:
1136      - multiple modifications of exf_check_range
1137      - unit change in exf_init_runoff from [m/year] to [m/s]
1138    o mdsio:
1139      - i/o-vector change debugLevel from debLevA to debLevB
1140    
1141    checkpoint56b_post
1142    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1143      is called from DO_THE_MODEL_IO
1144      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1145      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1146      - clean up PTRACERS_WRITE_TIMEAVE a little
1147    o add another verification experiment that tests both the cfc-pkg and
1148      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1149      reactive tendencies treated inline with regular timestepping
1150    o testreport previously did a lousy job of comparing small numbers, so
1151      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1152      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1153      testreport.
1154    o ptracers_monitor: bug fix for MPI
1155    
1156    checkpoint56a_post
1157    o GCHEM: finish reorganizating the package
1158      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1159        (introduces another 3D-array for each passive tracer, but only if
1160        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1161        gchemTendency is not needed because the timestep is done separately)
1162      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1163      - GCHEM is now---more or less cleanly---separate from PTRACERS
1164      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1165        so clear to me how that should be done in a general way.
1166    o CFC: improve formatting of output in CFC_ATMOS
1167    o PTRACERS:
1168      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1169        that ALL experiments with ptracers enable can be checked. This makes
1170        GCHEM_MONITOR obsolete.
1171      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1172        monitorFreq
1173      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1174    o add PTRACERS (PTR0[1-5]) to testreport output
1175    o exf_check_range:
1176      * default changed to .TRUE.
1177      * will check values for niter0 if debLevA, every timestep if debLevB
1178      * STOP in exf_check_range if 'out of range'
1179      * range chosen generous to allow for potential extema
1180      TBD: a version with stricter range
1181           permitted range would be runtime parameters
1182    o GMredi:
1183      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1184      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1185      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1186    o GCHEM:
1187      - move call to GCHEM_FORCING_SEP, so that it is now called before
1188        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1189      - introduced a useGCHEM runtime flag and applied it everywhere.
1190      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1191        this flag is now only visible within GCHEM-pkg routines.
1192      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1193        be replaced by a 3D array that is computed before thermodynamics; for
1194        this, the tracer ID iTracer had to be included into the parameter list
1195        of ptracers_forcing
1196      - set up forward_step to call gchem_forcing, that will replace
1197        gchem_forcing_int in ptracers_forcing
1198      - cleaning up
1199    o small cleaning of exch2: remove files that are also in eesupp/src
1200    
1201    checkpoint56
1202    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1203    o mnc: cleanup "full" files--fixes out-of-memory problem
1204    o ECCO-GODAE
1205      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1206      * fully merged and updated from SIO code
1207        windstress sign change affects
1208        - exf_inscal_[u/v]stress
1209        - sign of xx_tau[u/v] adjustments
1210        - signs in cost_scat
1211      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1212      * natl_box_adjoint updated and compressed
1213      * 2-level checkpoint switch added
1214        (tested in EXP. 1 of natl_box_adjoint)
1215      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1216    o SVD
1217      * first complete, non-hacked version for SVD calculations
1218      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1219        performed via direct access files admtlm_vector.it????
1220        (via ctrl_[un]pack)
1221      * optimcycle is used for ARPACK iteration counter
1222        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1223      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1224        and add linear transforms where necessary
1225      * controls are initial/final SST, SSS (can be extended; need to check
1226        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1227    o mdsio: filename info to both stderr, stdout
1228    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1229      from sign change
1230    
1231    checkpoint55j_post
1232    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1233      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1234    o add consistent build directories and .cvsignore files to verification
1235    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1236    o make all subroutines 30 or less characters in length for certain older
1237      compilers to work (a thorough search only turns up two routines in
1238      pkg/ptracers)
1239    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1240      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1241    
1242    checkpoint55i_post
1243    o change arrays for total vertical diffusivity (2.D if explicit,
1244      3.D if implicit) ; each ptracer uses its own background value.
1245    o added mnc/NetCDF output capability to ocn_compon_interf
1246      - added bits to verification/cpl_aim+ocn so that it can run on
1247        ITRDA and other clusters without the mpirun "-wd" option
1248    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1249      configuration
1250    o give MNC the ability to create additional files rather than
1251      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1252      - the default is just less than 2GB which is a practical limit
1253        on many systems
1254    o Compute the non-local term using either KPP vertical diffusivity (=default)
1255       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1256    
1257    checkpoint55h_post
1258    o add verification test "vermix"
1259    o remove all the *_ioinc flags and replace with the single global
1260      outputTypesInclusive flag
1261    o allow to set a vertical profile of vertical diffusivity for T & S
1262    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1263    o useMNC moved from data.mnc to data.pkg
1264    
1265    checkpoint55g_post
1266    o Renaming carbon AD experiments to comply with testreport conventions
1267    o Updating adjoint of Held-Suarez hs94.1x64x5
1268    o Fixing directives for non-ECCO forward_step, after ECCO directives
1269      have been fixed to avoid recomp. of do_oceanic_phys
1270      Works well for global_ocean.90x40x15,
1271      but recomp. issue remains for carbon
1272    o Updating adjoint output for natl_box_adjoint after
1273      pkg/ecco has been modified (see taga c55d_post)
1274    
1275    checkpoint55f_post
1276    o rename to timeave_init_fixed
1277    
1278    checkpoint55e_post
1279    o some delicate re-shuffle of store directives to avoid one
1280      extra call of do_oceanic_physics
1281      affects ecco_the_main_loop.F, do_oceanic_physics.F
1282      checkpoint_lev1_directives.h
1283    o NB: this may break global_ocean adjoint temporarily,
1284      but it is clear how to fix it. Will do later, need this now.
1285    
1286    checkpoint55d_post
1287    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1288    o ecco_cost_weights is modified to 1x1 runs
1289    o modifs to allow observations to be read in as
1290      single file or yearly files
1291    o enable to read exf forcing fields as either
1292      single file or yearly files (flag useExfYearlyFields)
1293    checkpoint55d_pre
1294    
1295    o switch between 2-level and 3-level checkpointing
1296    o add ability of MNC to write local and "partial" (eg. 2D slices where
1297      the full 3D field is never actually stored) arrays to NetCDF files
1298      with the correct (that is, the complete multi-dimensional) set of
1299      array indicies
1300      - used in mom_vecinv() to write the diagFreq output
1301      - tested (demonstrated) in verification/aim.5l_cs
1302    o further mnc-ification
1303      - add verification/lab_sea to the list with mnc setups
1304      - fix undefined mnc v-names in cd_code
1305      - add kpp to mnc output (both snapshot and timeave)
1306    o non-hydrostatic code
1307      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1308        in calc_gw.F
1309      - defaults to viscAh
1310      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1311        friction or Leith) in non-hydrostatic mode, as long as there is
1312        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1313    o pkg/cost
1314      extend simple cost functions to treat time mean quantities
1315      (T,U,V) via cost_accumulate_state from cost_tile
1316    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1317        be 2 times larger than the minimum size the advection scheme requires.
1318        now get a perfect conservation of salt in advect_cs test-exp (updated)
1319    o GGL90 (Gaspar's TKE mixed layer)
1320      - add horizontal diffusion of TKE, requires exchanges in
1321        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1322        default. In OPA there is no horizontal diffusion of TKE but the
1323        mixing coefficients are computed from a horizontal average of TKE of
1324        6 points or so. I think that diffusion has a little more physical
1325        justification.
1326      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1327        was in vain)
1328      - mask tke-variable in ggl90_init
1329    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1330    o fix biharmonic diffusion on CS-grid.
1331    o more obcs stuff
1332      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1333        for reading boundary values. This routine is called from
1334        obcs_prescribe_read
1335      - updated obcs_check
1336      - changed sponge layer relaxation parameter units for days to seconds
1337      - turned off sponge layer by default
1338      - changed argument list of OBCS_CALC to myTime+deltaTclock
1339      - fixed about 35 bugs in obcs_external_fields_load
1340    
1341    checkpoint55c_post
1342    o obcs stuff
1343      - new runtime flags useOBCSprescribe, useOBCSbalance
1344      - re-arranged obcs_calc
1345      - moved exf_getobcs to obcs_prescibe_read
1346        obcs_prescibe_read is called after ORLANSKI stuff
1347        and independent of it (executable can contain all).
1348      - updated obcs_check
1349      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1350        These may be necessary only if tangential velocities are
1351        prescribed at OB, not sure, needs testing.
1352    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1353      which simplifies the calls and passes the ifc check-bounds test
1354    
1355    checkpoint55b_post
1356    o add a 2D scalar, Z location, exchange_2 routine.
1357    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1358      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1359      affects advect_cs results (for the wrong reason): update output.txt
1360    o use a more standard discretization for biharmonic viscosity ;
1361     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1362      affects results of dome set-up: update output.txt
1363    o fix gad_advection.F (CubedSphere part), back to version 1.23
1364    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1365    
1366    checkpoint55a_post
1367    o merged code to
1368      * prescribe/read time-dependent open boundaries
1369        (works in conjunction with exf, cal)
1370      * sponge layer code for open boundaries
1371      * each boundary N/S/E/W now has its own CPP option
1372        (healthy for the adjoint)
1373    
1374    checkpoint55
1375    o up-to-date adjoint of previous breaks
1376      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1377      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1378      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1379      - carbon: * remove tr1-related adjoint verification
1380                * add ptracer as control variable
1381    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1382      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1383    
1384    checkpoint54f_post
1385    o in verification/carbin/ remove experiment related to
1386      ALLOW_PASSIVE_TRACER (array tr1 etc)
1387      code_ad/ input_ad/ results_ad
1388    
1389    o add two new packages
1390      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1391        + subject to optimization (memory)
1392      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1393        + subject to reordering (many GOTOs in the original code)
1394        + so far opps is called for every (i,j) point, and then operates in
1395          the vertical; one may want to reorder the scheme in order operate in
1396          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1397          fields)
1398    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1399      - all verification tests compile and run with linux_ia32_g77
1400      - defaults are compatible with current input files--nothing
1401        should change if you were not previously using MNC
1402      - MNC output has been added in numerous places (eg. timeave)
1403        but there are still a few writes not yet do-able with MNC
1404        (this is in progress)
1405      - flags now allow for either/or/both use of MDSIO and MNC and
1406        documentation will soon follow
1407      - numerous small formatting cleanups for ProTeX
1408    o add version info (via BUILD_INFO.h) to MNC and stdout
1409    
1410    checkpoint54e_post
1411    o add two new packages
1412      - pp81 (Packanowski and Philander, 1981), Richardson number and
1413        stratification dependent mixing
1414      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1415      - these scheme operate in a similar manner as KPP (without ghat, of
1416        course), however there is only one diffusivity that is used for both
1417        temperature and salinity (and passive tracers)ç
1418    o add offline package
1419    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1420      provided by Stephanie Dutkiewicz
1421    o genmake2: add ability to search for C compilers and cleanup test output
1422      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1423    
1424    checkpoint54d_post
1425    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1426    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1427      leading to additional shift by 5 days each year of integration
1428       (i.e. leading to considerable offset over the years)
1429    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1430    o start with no AB and no initial filtering (staggerTimeStep):
1431      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1432    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1433      (external loading & cpl import/export stay in forward_step.F)
1434    o update coupling interface to work with new staggerTimeStep
1435    o change MDSIO ptracers_pickup.
1436    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1437    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1438    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1439    
1440    checkpoint54c_post
1441    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1442      this affects (truncation error) output.txt of test-exp:
1443       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1444    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1445    o change Qnet to always be the net heat flux, (+upward).
1446      affects (truncation error) output of natl_box exp.: updated
1447    o define the max number of passive tracers in PTRACERS_SIZE.h
1448    o start to test mnc routinely in exp0
1449    o add sea-ice loading (sIceLoad) as a new forcing field.
1450    
1451    checkpoint54b_post
1452    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1453       impressive on Altix and Opteron systems)
1454    o diagnostics can now write NetCDF files through the mnc package
1455    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1456    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1457    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1458      affects (truncation error) output of lab_sea & natl_box exp.: updated
1459    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1460    
1461    checkpoint54a_post
1462    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1463    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1464    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1465    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1466      + internal_wave (shift in writing cg2d_ini_res)
1467    checkpoint54a_pre
1468    
1469    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1470      - modified verification/lab_sea and natl_box_adjoint accordingly
1471    
1472    checkpoint54
1473    checkpoint53g_post
1474    o prepare splitting of thermodynamics: store convect.counter in common block
1475    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1476      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1477    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1478    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1479    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1480    o restore adjointability
1481    
1482    checkpoint53f_post
1483    o modifications that affect AIM experiment results (update output.txt):
1484      - no advection of S at top interface Nr (pkg/generic_advdiff)
1485      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1486    o AIM pkg:
1487      - include stability function into surf.Flux derivative relative to Tsurf
1488      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1489    
1490    checkpoint53e_post
1491    o merged cylindrical coord configuration
1492    o added rotating_tank experiment
1493    checkpoint53e_pre
1494    
1495    checkpoint53d_post
1496    o faulks upgraded: re-generate output.txt that have changed:
1497       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1498    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1499    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1500    o added Sadourny discretization of Coriolis
1501      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1502      - re-enabled use of omega3 (useAbsVorticity)
1503    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1504      vector-invariant equations
1505      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1506    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1507      hopefully without new bugs
1508      - still to do: biharmonic friction for non-hydrostatic w
1509    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1510    o regenerated output for global_ocean_ebm (using -ieee)
1511    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1512      of mom_common/
1513      - simple re-arrangement of instructions within computing loop
1514    checkpoint53d_pre
1515    
1516    checkpoint53c_post
1517    o new version of coupler for AIM+thSIce and Ocean models
1518     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1519     - land: change Evaporation of snow
1520     - aim with thSIce: fix bug in snow-precip.
1521    o changes to calc_gw.F
1522     - bug fix for w^2 term near the bottom boundary
1523     - (hopefully) improve the lateral slip boundary condtions for use with
1524        partial/looped cells
1525      - because the bug fix changes two verification experiments anyway (exp5
1526        and plume on slope), change the lateral boundary condition from half slip
1527        to the value of no_slip_sides
1528    o ebm package wasnt quite up to the parallel task. Fixed that.
1529    o Adjoint of EBM package + verification
1530      * TLM OK
1531      * ADM not sufficient accuracy yet (needs further testing)
1532    
1533    checkpoint53b_post
1534    o Commiting new energy balance model to repository
1535      * package is pkg/ebm
1536      * verif. is verification/global_ocean_ebm
1537      * references are in ebm_driver.F
1538    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1539    C        Global thermohaline circulation. Part I:
1540    C        Sensitivity to atmospheric moisture transport.
1541    C        J. Climate 12(1), 71-82
1542    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1543    C        Global thermohaline circulation. Part II:
1544    C        Sensitivity with interactive transport.
1545    C        J. Climate 12(1), 83-91
1546    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1547    C        Destabilization of the thermohaline circulation
1548    C        by atmospheric eddy transports.
1549    C        J. Climate 7(12), 1870-1882
1550    o Will need long integration testing.
1551    checkpoint53b_pre
1552    
1553    o created pkg/mom_common in preparation for variable viscosity code
1554    o renamed and split ini_mnc_io
1555    o pkg/land: only liquid water can diffuse or run-off
1556    o AIM using land: soil wetness availability account for snow
1557    o added printMapIncludesZeros to EEPARMS namelist
1558    
1559    checkpoint53a_post
1560    o restore TAMC compatiility for exf_constants.h
1561      (no usage of _d in .h)
1562    o Additional storing in KPP in an attempt to fix
1563      TAMC problem with adjoint of KPP code.
1564      (no success...)
1565      Identical code works fine with TAF.
1566    o Fixed verification/natl_box_adjoint experiments.
1567      Initial conditions for Experiments 4 and 5 are now
1568      set to "SEAICE_initialHEFF=0", which is more reasonable,
1569      and hence gives results closer to that of Experiment 2.
1570      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1571    
1572    checkpoint53
1573    o stable checkpoint with up to date adjoint
1574      TLM tests only run for 1st grdchk at the moment. Its unclear if
1575      this is a code problem or a problem with resetting code for g_
1576      variables that is being autogenerated wrong.
1577      Otherwise:
1578       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1579       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1580         are both still in chaos following their security messes.
1581    
1582    checkpoint52n_post
1583    o various build (mostly genmake2) changes including:
1584      - ability to build/run more easily within Cygwin and MacOS X
1585      - more complicated Makefiles with a stronger dependence on Gnu Make
1586    o pkg/seaice modifications
1587      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1588        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1589        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1590      - changed proxy for geostrophic velocity and updated
1591        verification/lab_sea/results/* accordingly
1592      - removed ADI dynamic solver from pkg/seaice
1593      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1594        they caused a segmentation fault under certain circumstances
1595      - removed unused field WATR
1596    o bug fix in exf-package:
1597      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1598         now reflect that.
1599    o small fixes in the cal-package:
1600      - set reference date to first of January for the 'model'-calendar
1601      - failing of cal_CheckDate in cal_FullDate now actually results in a
1602        warning
1603    o small modifications in exf-package to increase flexibility:
1604      - change climtempfreeze from a constant to a runtime parameter that
1605        is specified in data.exf_clim (default = -1.9)
1606      - introduce runtime parameter windstressmax (default = 2.0) that is
1607        specified in data.exf
1608    o fix in pkg/thsice:
1609      - update Evap (Tsf changes) to be consistent with Latent heat flux
1610      - maintain snow precipitation unchanged (even if Tsf >=0).
1611     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1612    
1613    checkpoint52m_post
1614    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1615      this does not change any of the results, because myIter=0 in swfrac always
1616      lead to jwtype=2 (the default anyway), but the call makes little sense
1617      as a default
1618    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1619    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1620      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1621    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1622    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1623    o extending useSingleCpuIO option to work with new exch2 I/O format
1624      - old-style, missing-tile I/O is still accessible by defining CPP
1625        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1626    o monitor package can write to NetCDF files and/or STDOUT
1627    o fix re-definition bug in MNC_GRID_INIT_ALL()
1628    o doc/api_reference added
1629      - a framework for building an API Reference Manual using all
1630        the "protex" comments embedded in the code
1631      - see pkg/generic_advdiff, pkg/mnc for examples
1632    o MNC:
1633      - make myThid the last argument for all subroutines
1634      - new default for the grid files: NO halos
1635      - add useMNC and other run-time flags
1636      - separate per-file-group handling of the unlimited dimension
1637      - early initialization of MNC w/ flags read at the eeboot stage
1638        and lookup tables set in initialize_fixed
1639      - write all MNC output to a freshly-created directory
1640    o thermodynamics sea-ice (thsice) is now tested with testreport.
1641    o test exp. advect_cs: use the standard cs32 grid ; update output.
1642    o Added functionality to grdchk:
1643      pick global i,j,k position (or nearest wet) where to perform check.
1644    
1645    checkpoint52l_post
1646    o new land formulation:
1647      a) use ground enthalpy as prognostic variable to ensure exact
1648         energy conservation.
1649      b) account for water temperature and for latent heat of freezing
1650         in all processes (rain, run-off, ground storage)
1651      c) compute surface and ground temperature implicitly.
1652    o aim_v23 modification for new land model:
1653      a) Treat separately land / ocean / sea-ice surface fluxes
1654         to allow implicit computation of land & sea-ice surface temp.
1655      b) add snow precipitation.
1656    checkpoint52l_pre
1657    
1658    o fix problem (when 1 tile is empty) in min/max monitor.
1659    o fix bug in timeAve (u,vZetatave in common block)
1660    o no restoring terms under ice for pkg/seaice
1661    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1662    o bug fix for pkg/seaice pickups
1663    o change MNC call locations and add coordinate attributes
1664    o mask vorticity at the corner ; affects global_ocean.cs output
1665    o fix ini_curvilinear_grid ; test CS experiments with mpi
1666    o aim.5l_cs: modify sea-ice fraction input file ; update output
1667    o exf: Adding simple range check routine for exf fields after read
1668    
1669    checkpoint52k_post
1670    o removed top-level directory "diags"
1671      - we migrated these functions to pkg/timeave a long time ago
1672    o fixed bug introduced in pkg/monitor
1673    o accuracy ctrlprec = 32 insuffient for gradient checks using
1674      averaged fields (I/O via cost_averages)
1675      -> use ctrl.h in active_file*.F to control I/O precision.
1676    o paramter list of CALL ADTHE_MAIN_LOOP
1677    o added initial do_the_model_io to ecco
1678    o set all ...Freq to zero after cost_final
1679      taveFreq, dumpFreq, pChkptFreq
1680    o MAIN and ECCO differentiability restored
1681    
1682    checkpoint52j_post
1683    o fix nchklev in tamc.h for global_ocean...
1684    o Bringing flow and store directives up-to-date
1685    o Really weird thing!
1686      call do_the_model_io from the_main_loop with parameters
1687      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1688      TAF places a faulty re-call of initialise_varia
1689      after cost_final call which should not be there!
1690    checkpoint52j_pre
1691    
1692    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1693      error messages
1694    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1695    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1696      debug output
1697    o modfied mdsio_writefield.F to handle non-global files under exch2
1698    o update AIM Cubed-Sphere exp (aim.5l_cs):
1699      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1700    o update AIM Equatorial Channel exp:
1701      use standard aim_v23 pkg and change the SST fields to be more realistic.
1702    o globalFile now works with exch2
1703    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1704      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1705    o limit timeave output for hi-res integrations
1706    
1707    checkpoint52i_post
1708    o removed CPP_EEOPTIONS.h from verification/*/code
1709    o updated the tiling for global_ocean_pressure
1710    checkpoint52i_pre
1711    
1712    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1713      the old pkg/aim).
1714    
1715    checkpoint52h_pre
1716    o shortened offending lines in exch2_send_rx?.template
1717    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1718    o genmake2: add build & execute test for NetCDF code
1719    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1720      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1721    o added useSingleCPUIO flag to monitor.F and mon_out.F
1722    o added temporary hack for sea-ice dynamics on the cube:
1723      metric terms are ignored and it is assumed that
1724      there is no sea-ice on cube faces 1, 2, 4, and 5.
1725    
1726    checkpoint52f_post
1727    o added exch2 cube routines to pkg/exch2
1728    o modified hs94.cs-32x32x5 to use it
1729    o added new grid files to hs94.cs-32x32x5
1730    checkpoint52f_pre
1731    
1732    checkpoint52e_post
1733    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1734      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1735    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1736      to work with implicit vertical advection and AB ;
1737    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1738    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1739     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1740    checkpoint52e_pre
1741    
1742    o fix bug in impldiff when Nr=1 or Nr=2.
1743    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1744    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1745    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1746      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1747    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1748    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1749    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1750    
1751    checkpoint52d_post
1752    o re-tiled many expts to allow comparison in multi-processor mode
1753      - updated output accordingly
1754      - changed hs94.128x64x5 to use intial T from file rather than use the
1755        random number generator
1756    o add infrastructure in model routines for fizhi and gridalt packages
1757    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1758    o changes to permit hi-res, cubed-sphere, configuration
1759      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1760      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1761      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1762        of surface winds for the cube
1763      (A verification experiment, based on global_ocean.cs32x15, but with
1764       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1765       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1766       complete with example surface forcing files and matlab scripts to look
1767       at the output and compare it with that of global_ocean.cs32x15.)
1768    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1769       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1770       to conform to the common rule.
1771    o check-in the first version of the coupler + interfaces for multi-components
1772       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1773       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1774       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1775       - ocean and atmos. share the same horizontal grid (no interpolation).
1776       - exchanges between component and coupler is done in forward_step
1777    o new verification experiment, cpl_aim+ocn:
1778       coupled ocean - AIM atmosphere on cs32 grid.
1779    
1780    checkpoint52d_pre
1781    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1782    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1783    
1784    checkpoint52c_post
1785    o Fixing OPTIONS files for use of exf:
1786      - ALLOW_ECCO not needed
1787      - ECCO_CPPOPTIONS.h should not be included from
1788        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1789        as has been the case in the past
1790      - All cal/exf related options are currently set in
1791        single header file. Should remain so until we
1792        agree on a consistent new policy.
1793    o Removed all CPP options for cal package.
1794      cal has no more CPP options.
1795    o modified STOREs in GAD_ADVECTION
1796    o corrected key comp. for passkey
1797    
1798    checkpoint52b_post
1799    o new version: "thsice" of thermodynamic sea-ice pkg:
1800     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1801     - modify fluxes but do not change theta directly;
1802     - light cleaning of bulk_force pkg (still needed with thsice).
1803     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1804       + output_thsice.txt to test thsice & bulk_force pkgs.
1805    o put back grid & coriolis monitor output.
1806    checkpoint52b_pre
1807    
1808    o call "do_the_model_io" at the beginning (=> dump initial state)
1809    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1810    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1811      (need info on NUMBER_OF_PTRACERS)
1812    o missing PTRACERS headers in some routines
1813    o default tamc.h in pkg/autodiff supposed to crash
1814      to ensure proper customization
1815    
1816    checkpoint52a_post
1817    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1818      - moved surfaceTendencyTice from pkg/seaice to main code
1819      - subroutine FREEZE_SURFACE now limits only surface temperature
1820        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1821        => new output.txt for global_ocean.cs32x15 & global_with_exf
1822      - keep the old version of FREEZE for backward compatibility;
1823        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1824      - corresponding modifs for TAF directives
1825    o added surface flux output variables to TIMEAVE_STATVARS
1826    o time-averaged output for pkg/ptracers
1827    o fix problem with ECCO-related divided adjoint
1828      snapshot file was missing some ad-variables,
1829      but no warning issued by TAF
1830    
1831    checkpoint52a_pre
1832    o some bug fixes for #undef REAL4_IS_SLOW
1833    
1834    checkpoint52 = ecco_c52_e35
1835    o after testing adjoints of checkpoint51u_post
1836    
1837    checkpoint51u_post
1838    o this is the post-merge tag of the ecco-branch
1839      (needs another clean checkout and re-testing)
1840    o various natl_box_adjoint configs and results
1841      but no input fields
1842    o obcs adjoint not yet merged!
1843    o adding ECCO global 1x1 and 2x2 degree configs
1844    o updated/extended some store directives for seaice
1845    o pkg/ecco now containes ecco-specific part of cost function
1846    o top level routines the_main_loop, forward_step
1847      supersede those in model/src/
1848      previous input data.cost now in data.ecco
1849      (new namelist ecco_cost_nml)
1850    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1851    
1852    checkpoint51t_post
1853    o this is the pre-merge tag of the ecco-branch
1854    
1855    checkpoint51s_post
1856    o cleanup: removed various obsolete #define-s
1857    o pkg/grdchk
1858      - renamed 'ph-grd 3' to 'grad-res'
1859      - merged from ecco-branch
1860        (remaining bug fixes for obcs gradient checks)
1861      - additional high-precision output for testreport
1862        (grep for 'precision_grdchk_result')
1863    
1864    checkpoint51r_post
1865    o cleaned up or removed CPP_OPTIONS.h files
1866    o updated results for some of the tests to reflect the new
1867      optfiles (-ieee: -O0 instead of -O3)
1868    
1869    checkpoint51q_post
1870    o cd_code:
1871      - moved cd_scheme.F -> cd_code_scheme.F
1872      - separate read_checkpoint from cd_code_ini_vars.F
1873      - separated cd_code part from write_checkpoint
1874      - updated AD_SOURCE, generated .flow
1875      - added CD_CODE_VARS.h to the_main_loop
1876      - Moving cd_code specific store dir.s to pkg/cd_code
1877    o ctrl package totally restructured
1878      - pack/unpack now optional and decoupled from
1879        xx_/adxx_ I/O
1880      - ctrl_pack/unpack cleaned
1881        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1882      - confined inclusion of AD_CONFIG.h to where necessary.
1883    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1884    
1885    checkpoint51p_post
1886    o create initial cd_code package
1887      - WARNING: the initialization of fields within packages
1888        is broken because INI_FIELDS (where READ_CHECKPOINT is
1889        called) is called *before* PACKAGES_INIT_VARIABLES.
1890        This seems to be backwards since
1891        1) its important to initially zero the entire field including
1892           the "halo" region
1893        2) zeroing needs to be done *before* reading pickup info
1894           and the pickup call might or might not happen in any
1895           particular run
1896      - this needs an overhaul for R2
1897    o cleanup verification/*/code/GMREDI_OPTIONS.h
1898    o cleanup testreport
1899    
1900    checkpoint51o_post
1901    o bringing AD-related verif's up to date with genmake2
1902      - carbon/
1903      - global_ocean.90x40x15/
1904      - hs.94.1x64x5/
1905      - (front_relax/ )
1906    o (more) consistent directory structure for AD-related verif.'s
1907    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1908    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1909    o bug fix in find_alpha.F for MDJWF:
1910      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1911        change rho -> rho-rhoConst
1912      - replace call find_rho to find_rhonum
1913    o initialisation of rFlx extended to full array (required by TAF)
1914      and shifted to thermodynamics
1915    o removed PTRACERS.h in ptracers routine
1916    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1917    o Correcting initialisations for fVerU, fVerV.
1918    o helping TAF to recognize dependency on kUp for
1919      fVerU, fVerV
1920    o Replacing delZ by delR in pkg/ctrl/
1921    checkpoint51o_pre
1922    
1923    o undid all of cp51 pending some cleanups and discussion
1924    o added the [#include "AD_CONFIG.h"] statement to all files that need
1925       it for adjoint/tl #defines
1926     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1927     o removed tools/genmake since it no longer works
1928    
1929    checkpoint51n_post
1930    o modifications to make FREEZE flux visible to pkg/kpp
1931      - moved surfaceTendencyTice from pkg/seaice to main code
1932      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1933      - subroutine FREEZE now limits only surface temperature
1934        (this means new output.txt for global_ocean.90x40x15,
1935         global_ocean.cs32x15, and global_with_exf)
1936    o added surface flux output variables to TIMEAVE_STATVARS
1937    
1938    checkpoint51n_pre
1939    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1940    o added [#include "AD_CONFIG.h"] to all files that use the following
1941      defines:
1942      - ALLOW_ADJOINT_RUN
1943      - ALLOW_TANGENTLINEAR_RUN
1944      - ALLOW_ECCO_OPTIMIZATION
1945    
1946    checkpoint51m_post
1947    o incorporating changes to get TAMC/TAF working in genmake2
1948      - added new TAMC/TAF targets to the Makefile
1949      - various cleanups related to package handling
1950      - these changes should have no impact on the forward model
1951    
1952    checkpoint51l_post
1953    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1954     - faster algorithm for cal_addtime.F
1955     - higher precision arithmetic, where needed
1956     - pkg/exf *startdate variables changed from calendar date to
1957       model integration time
1958    
1959    checkpoint51l_pre
1960    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1961    o enable to apply restoring on S & T only in a latitude band.
1962    o update output (external_forcing_surf modif. change truncation errors)
1963       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1964    
1965    checkpoint51k_post
1966    o change default to: useNHMTerms=.FALSE.
1967     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1968       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1969     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1970        exp1, ideal_2D_oce
1971     - change data file of oceanic exp (leave the results unchanged for now)
1972       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1973    o set gravitySign automatically according to the vertical coordinate used
1974      (and change sign: back to "logical" value: +1 when R increases downward)
1975    o added an include barrier to the default CPP_OPTIONS.h and
1976      removed the #include "PACKAGES_CONFIG.h" from it
1977    o fix a bug in mom_fluxform (from chk51j_post)
1978    
1979    checkpoint51j_post
1980    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1981    o adjusted some flow directives (dynamics, thermodynamics)
1982    o added cubed-sphere case to test cost function
1983    o heckpoint_lev?_directives.h now include
1984      pkg-specific directives, whenever those are enabled.
1985    o Moving pkg-specific flow directives to corresponding pkg
1986      Moving pkg-specific differentiation list to corresponding pkg
1987      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1988      ---> conventions are
1989           - pkg_ad.flow
1990           - pkg_ad_diff.list
1991           - pkg_ad_check_lev?_dir.h
1992    
1993    checkpoint51i_post
1994    o merge of the branch-genmake2
1995      - knowingly breaks the older genmake
1996      - automatic generation of all ALLOW_${PKG_NAME} defines
1997      - new testreport supersedes older testscript
1998    o large number of package inclusion and header cleanups
1999    checkpoint51i_pre
2000    
2001    o new output for adjoin of global ocean vector invariant
2002    o fix for checkpoint of thermodynamic seaice and bulk_force
2003    o Steph gchem various cleanups
2004    
2005    checkpoint 51h_pre
2006    o fixed some single quotes
2007    o modify gchem pkg to be more versatile
2008    o modifications to clean up dic pkg
2009    o add pkg/cfc
2010    
2011    checkpoint51g_post
2012    o provide links for ARPACK and ADM*TLM
2013    o start removing verification/vero/
2014    o update AD-related stuff
2015      (in particular some IF-statements in model/src/ routines)
2016    o adding to verification/global_ocean.90x40x15/ adjoint of
2017      vector invariant setup
2018    
2019    checkpoint51f_post
2020    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2021    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2022      of tracer Green's fucntions for ocean inversion project.
2023    
2024    checkpoint51f_pre
2025    o Added on-the-fly spatial interpolation capability
2026        "USE_EXF_INTERPOLATION" to pkg/exf.
2027      - This is a temporary Cartesian-grid hack until
2028        the super-duper ESMF coupler becomes available.
2029      - See verification/global_with_exf/README for usage example.
2030      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2031        flags and modified pkg/seaice accordingly.
2032    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2033        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2034        non-local transport term.
2035    
2036    checkpoint51e_post
2037    o pkg/mom_vecinv:
2038      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2039      - add time-ave diagnostic of vorticity advection.
2040    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2041    o atmospheric geopotential: - include water vapor effect;
2042                                - use p^kappa in p* scaling.
2043    o land pkg: read initial state from files.
2044    o AIM : add stratospheric drag in the upper level
2045    
2046    checkpoint51d_post
2047    o change function ILNBLNK (=> last non-blank char.) to return zero
2048      (instead of the string length) when the string. char is empty
2049    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2050    o modif's to restore TAMC compatibility
2051      - avoid "_d" constructs in PARAMETER declarations
2052      - avoid interrupting lines by comment lines
2053    o Use cluster local disks for purely local I/O
2054      vs. globally visible disks needed for ctrl stuff
2055      (merged from ecco-branch)
2056      - new active_file_loc... and mdsio_..._loc routines
2057      - affected packages: autodiff, ctrl, grdchk, mdsio
2058    
2059    checkpoint51c_post
2060    o introducing integer flag debugLevel
2061      - debLevZero: suppress all output
2062      - debLevA: standard
2063      - debLevB: equivalent to current debugMode=.TRUE.
2064    o introducing pathname variable mdsioLocalDir for mdsio
2065      that can be specified at runtime
2066      (relevant for cluster I/O to local disk)
2067    `
2068    >>>checkpoint51b_post
2069    adjoint of ptracers
2070    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2071    o extended state in checkpoint_lev?, etc.
2072    o alternative ctrl/cost with tr1 or ptracer
2073    o new comlev1_bibj_ptracers
2074    o new ptracers.flow
2075    o made ptracers_forcing same as external_forcing_s
2076    o added verification for adjoint with ptracers
2077      - adm. grdchk fail so far
2078      - tlm. grdchk OK
2079      - checked tapelev/comlev recomputations: OK
2080    <<<checkpoint51b_pre
2081    
2082    checkpoint51a_post
2083    o added code for biogeochemistry package
2084      - new pkgs: dic, gchem
2085      - new subroutine in ptracers
2086    o modify code for biogeo packages
2087      - in model/src and pkg/ptracers
2088    
2089    checkpoint51
2090    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2091      - autodiff, ctrl, exf, grdchk, seaice
2092      kept separate packages
2093      - cost, ecco, obcs
2094    o updating verification/internal_wave, verification/lab_sea
2095      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2096    
2097    checkpoint50i_post
2098    o Preparing next differentiable checkpoint and sync
2099      of MAIN vs. ecco-branch
2100      - 1st step: this one is differentiable
2101      - 2nd step: next(! not this) checkpoint will have updated packages
2102                  from ecco-branch)
2103    
2104    checkpoint50h_post
2105    o new package "land": provide surface BC for AIM.
2106    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2107    o AIM: use true log-P extrapolation for near surface temp (= as in
2108        F.Molteni paper) ; update aim.5l_cs output.
2109    o New variable in PARM03 for more flexible pickups
2110    o somewhat cleaned package initialisation sequence for
2111      ctrl/ cost/ ecco/ in packages_... routines
2112    
2113    checkpoint50g_post
2114    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2115      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2116      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2117        made the default because of faster convergence than ADI
2118    
2119    checkpoint50f_post
2120    o exf totally restructured
2121      - replaced all exf_set_ routines by one generic exf_set_gen.F
2122        and made sure it's still differentiable
2123      - split exf_getffields.F into new exf_bulkformulae.F
2124      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2125      - updated adjoint/makefile and relevant verif. accordingly
2126    
2127    checkpoint50f_pre
2128     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2129          + change Evap over land. (update aim.5l_cs output)
2130     o added missing .cvsignores and made uniform across expts
2131     o changed configuration of tidal_basin_2d expt
2132     o added pkg/debug functions for tracing code in fatal crashes
2133     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2134     o new fn in pkg/monitor to stop model if solution grows too big
2135     o removed lots of single quotes from comments
2136    
2137    checkpoint50e_post
2138    o make KPP work with PTRACERS
2139     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2140       nearly a copy of kpp_transport_s
2141     - there is no analogue to SurfaceTendencyS, so I have to use
2142       gPtr(of the surface layer) instead
2143    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2144    checkpoint50e_pre
2145    
2146    checkpoint50d_post
2147    o change kpp output from multiple-record state files to single-record state
2148      files analogous to write_state.F
2149    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2150      analogous to the cg2d-related output.
2151    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2152      so that writing to internal file fn (with length 512) fails.
2153    checkpoint50d_pre
2154    
2155    checkpoint50c_post
2156    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2157    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2158    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2159    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2160    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2161    
2162    checkpoint50c_pre
2163    Merging from release1_p13:
2164    o bug fix for pkg/seaice dynamic solver
2165    o Added SEAICE_initialHEFF to pkg/seaice
2166    
2167    checkpoint50b_post
2168    o store u*,v* in gU,V instead of in guNm1,gvNm1
2169    o in order to put the momForcing out of the Adams-Bashforth:
2170      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2171      to timestep.F
2172    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2173    o re-generate output for highly sensitive test-exp:
2174       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2175    
2176    checkpoint50b_pre
2177    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2178    o corrected CPP option mismatch in exf_Bulk... functions for case
2179      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2180    
2181    checkpoint50a_post
2182    o Bug fix for merging between c50 and KPP.
2183      ikey was passed from thermodynamics to kpp_calc via
2184      common block rather than being recomputed in kpp_calc,
2185      in contradiction with new key itdkey.
2186      New key ikppkey created, and tamc.h headers updated.
2187    
2188    checkpoint50
2189    - 2nd step of merge with ecco-branch:
2190      merge changes in ecco-branch back into main trunk
2191    - bug fix in find_alpha
2192    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2193    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2194    - merged some sliced AD support routines
2195    
2196    checkpoint49
2197    merged from ecco-branch:
2198    o exf:
2199      - Enable initialisation of forcing fields to constant
2200        (runtime) values.
2201      - in exf_getffields.F
2202        Reduce i-/j-loop to interior domain, discarding overlaps.
2203        That also fixes wrong TAF-key computations for key_1, key_2
2204        with bulf formulae.
2205      - exf_init.F modify #ifdef for exf_init_evap
2206      - exf_getffieldrec.F, ctrl_getrec.F
2207        The following INT-usages are not safe:
2208          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2209          fldcount = int(fldsecs/fldperiod) + 1
2210        and were modified.
2211    o autodiff: checkpoint_lev...
2212      - updated storing for bulk formulae (some arrays were missing)
2213      - added state for seaice package
2214      - synchronized with main branch
2215    o DIVA:
2216      Modif.s in
2217      - the_main_loop.F
2218      - the_model_main.F
2219      and added cost_final_restore.F cost_final_store.F
2220      o With these changes, it is possible to fully separate
2221        the first forward run to compute the cost function (mdthe_main_loop)
2222        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2223        into separate model executions.
2224        This enables better tuning of DIVA to given queue sizes.
2225      o Loss of cost function value in consecutive DIVA runs is
2226        fixed by storing to 'costfinal' file.
2227      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2228        beginning/end of adjoint integration is accounted for.
2229      The current changes apply to TAF-1.4.26.
2230      TAF has one remaining bug, requiring one manual change
2231      (see MITgcm manual).
2232    o cal: synchronized between MAIN and ecco-branch
2233    
2234    checkpoint48i_post
2235    o Changes to restore differentiability of code w.r.t. previous tag
2236      (mostly adding new routines to make list and replacing
2237      pressure by totPhiHyd).
2238    o Updated and merged grdchk package
2239      - has both ADM and TLM checks
2240      - works for single- and multi-proc.
2241      - output cleaned
2242      - worked successfully for parallel DIVA
2243    o genmake:
2244      - Adding -platform=SP4
2245      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2246    o Modif. for DIVA:
2247      ctrl_unpack should not be called in intermediate DIVA interval.
2248      (similar thing would apply for active files such as
2249      tbar, sbar, psbar, which should not be reinitialised;
2250      only relevant for ecco-branch)
2251    
2252    checkpoint48h_post
2253    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2254    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2255    o Added SEAICE_initialHEFF to pkg/seaice
2256    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2257    
2258    checkpoint48g_post
2259    --- EOS:
2260    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2261      store total Potential in totPhyHyd for diagnostics & EOS.
2262    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2263    --- Pressure/geopotential gradient:
2264    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2265    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2266      ( changes results of global_ocean_pressure )
2267    o NLFS + z-coord.: add eta*Rho' contribution.
2268    o accurate phiHyd when using interface-W at the middle between 2 centers
2269     ( changes results of ideal_2D_oce )
2270    o includes r* 2nd term in potential gradient.
2271    
2272    checkpoint48f_post
2273    Merging from release1_p12:
2274    o Modifications for using pkg/exf with pkg/seaice
2275      - improved description of the various forcing configurations
2276      - added basic radiation bulk formulae to pkg/exf
2277      - units/sign fix for evap computation in exf_getffields.F
2278      - updated verification/global_with_exf/results/output.txt
2279    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2280      (SBO) core products, including oceanic mass, center-of-mass,
2281      angular, and bottom pressure (see pkg/sbo/README.sbo).
2282    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2283      to avoid negative values in shallow regions.
2284      - updated verification/natl_box/results/output.txt
2285      - updated verification/lab_sea/results/output.txt
2286    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2287    o Added useSingleCpuIO option (see PARAMS.h).
2288    o Updated useSingleCpuIO option in mdsio_writefield.F to
2289      work with multi-field files, e.g., for single-file pickup.
2290    o pkg/seaice:
2291      - bug fix in growth.F: QNET for no shortwave case
2292      - added HeffFile for specifying initial sea-ice thickness
2293      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2294    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2295      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2296    o pkg/seaice:
2297      - adjoint-friendly modifications
2298      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2299    
2300    checkpoint48e_post
2301    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2302    o dynamics: change definition of computational domain & adapt mom_fluxform
2303      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2304    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2305        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2306        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2307        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2308        inverted_barometer solid-body.cs-32x32x1
2309      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2310    
2311    checkpoint48d_post
2312    o in preparation for r*:
2313     a) use pre-computed gradient of hydrostatic potential:
2314        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2315     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2316        => affects results of glob_oce_pressure (different truncation error)  
2317      update output.txt of ideal_2D_oce & global_ocean_pressure
2318    
2319    checkpoint48d_pre
2320    o in preparation for r*:
2321      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2322      pass the 2 comp. of the grad. as arguments to momentum S/R.
2323      but for the moment, only used if it does not change the results.
2324    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2325    
2326    checkpoint48c_post
2327    Modifications in treatment of initial flux forcing controls
2328    to avoid extra storing of flux fields.
2329    
2330    checkpoint48c_pre
2331  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
2332  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2333    

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