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revision 1.44 by adcroft, Tue Jul 31 18:42:13 2001 UTC revision 1.763 by mlosch, Tue Jan 9 13:36:19 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
8    o pkg/thsice: fix reading mnc-pickups
9    
10    checkpoint58t_post
11    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
12    o pkg/mdsio:
13     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
14       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
15       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
16     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
17     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
18       either MDS_READ_FIELD or MDS_WRITE_FIELD )
19     - new S/R (to replace MDSWRITEMETA), which allows to write more
20       informations (variable names, time ...) to meta files.
21     - modify rdmds.m to give back the meta file content.
22    o pkg/diagnostics: change vertical interpolation to be safer, and more
23       flexible (define p-levels to interpolate to in data.diagnostics);
24      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
25       diagnostic pointer.
26    o pkg/seaice: more cleaning up of seaice_growth, added many comments
27    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
28    o fix multi-category seaice:
29     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
30       SEAICE_MULTICATEGORY
31     - fix short wave heat flux
32    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
33       and allow to use EVP solver. Change forward lab_sea: test both EVP
34       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
35    o Initial check-in of lab_sea adjoint
36      (very similar to natl_box_adjoint/code_seaice)
37      * used C-grid and EVP solver
38      * used KPP, GM/Redi
39      * uses inAdExact=.TRUE.
40      * gradient checks fail for both ADM and TLM
41        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
42        f.d. gradients actually seem more problematic than ADM, TLM gradients;
43        issue is related to forward mismatch between g77 an ifort
44    o pkg/seaice: overhaul of thermodynamics
45     - growth.F and groatb.F are replaced by new routine seaice_growth.F
46     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
47     - move a few global fields out of SEAICE.h into seaice_growth.F and
48       make them 2D (FICE/QNETO/ ...)
49     - remove FO (it is the same as QNETO)
50     - introduce a few local fields to avoid modifying external fields such
51       as atemp, etc.
52    
53    checkpoint58s_post
54    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
55      changed exf_set_gen.F so that
56        genperiod=0 means input file is one time-constant field and
57        genperiod=-12 means input file contains 12 monthly means
58    o CG2D: use pre-computed solver main-diagonal (stored in common block);
59      this affects truncation error ; generate new output file for exp. which
60      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
61        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
62        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
63        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
64        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
65        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
66    o start implementation of deep-atmosphere and anelastic formulation
67    o verification: remove 2nd copy of input files and use script "prepare_run"
68      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
69    o mom_common/vecinv/fluxform: fix a few initialisation isssues
70    o profiles: fix for multithreaded case
71    
72    o diagnostics: rename few diags:
73      s/'PRESSURE'/'RCENTER '/g
74      s/'TICE    '/'oceFreez'/g
75      s/'TAUX    '/'oceTAUX '/g
76      s/'TAUY    '/'oceTAUY '/g
77      s/'SWFLUX  '/'oceQsw  '/g
78      s/DIFx/DFxE/g
79      s/DIFy/DFyE/g
80      and add few ocean-forcing diagnostics:
81      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
82    o modifications to pkg/seaice/growth.F and budget.F, which change results of
83      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
84      as actual snow thickness.  It now refers everywhere to effective snow
85      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
86    
87    checkpoint58r_post
88    o modifications to pkg/seaice/growth.F, which change results of
89      lab_sea experiment: fixes pertain to melting snow over open water, to
90      masking EVAP under sea ice, and to using the correct AREA variable for
91      computations of EVAP, PRECIP, HSNOW, and GHEFF
92    o add ability to read bathy, salt, and theta using MNC (off by def)
93    o add flooding algorithm and advection of HSNOW for pkg/seaice;
94      both are turned off by default and do no change any results
95    o seaice advection with pkg/thsice: a step toward the use of non-linear
96      advection scheme, but #ifdef or commented out for now (requires more EXCH).
97    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
98      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
99      in natl_box (affects results @ truncation level: update output.txt)
100    o multi-threading and IO:
101      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
102      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
103        (needed to work with SingleCpuIO): tested in all verif. exp.
104    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
105      affects the results (but none of the verification test uses this scheme).
106    o Adding some pkg/diagnostics capability to pkg/seaice
107      (will certainly be subject to changes)
108    o ctrl: adding new control variables:
109      lwflux, lwdown, evap, snowprecip, apressure, runoff
110    
111    checkpoint58q_post
112    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
113      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
114      high_res_cube configuration by 4% on Columbia.
115    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
116      add (in global_with_exf/code) a version of EXF_INTERP_READ without
117      dynamical allocation (seems to work in multi-threaded).
118    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
119      single CPU io) so that TAF does not have to see EESUPPORT.h
120    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
121    
122    checkpoint58p_post
123    o obcs: stop if obcs is used with useCDscheme = .true.
124    o shelfice:
125     - fix a sign error so that no slip at shelfice interface works
126     - remove stop for combination non-hydrostatic code and shelfice. That does
127       not mean, that the results are correct, but at least they are numerically
128       stable
129    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
130    o added adjoint exch routined for all exch*3d* routines
131      and updated flow directives
132    
133    checkpoint58o_post
134    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
135      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
136    o change controling S/R for writing pickup file (new S/R do_write_pickup)
137      and clean-up reading/writing of pickup files.
138    o fix local version of read/write pickup (NH part) in rotating_tank/code
139    o simplify EXCH interface:
140     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
141     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
142    o added the regrid package
143    o shelfice:
144     - add a simple boundary layer scheme to reduce noise
145     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
146    
147    checkpoint58n_post
148    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
149       local variable (not in common block).
150    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
151      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
152      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
153        to work with SingleCpuIO.
154    o add "_d 0" to real constant of pkg/cfc subroutines ;
155       update exp. cfc_exemple & tutorial_cfc_offline output files.
156    o multi-threading and IO:
157      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
158        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
159      - barrier before and after reading.
160      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
161      - avoid using MDS_WRITELOCAL for LAND pkg output.
162      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
163        common-block variables ; Allows multi-threading with master-thread IO.
164    o change default MAX_NO_THREADS from 32 to 4 ;
165      and stop cleanly when MAX_NO_THREADS is too small.
166    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
167    
168    checkpoint58m_post
169    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
170       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
171    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
172       keep global_ocean.90x40x15 (for AD testing) with former secondary test
173       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
174    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
175        add MITgcm_tutorials (= code + all the tutorials)
176    o ecco, option to compute cost for total ssh (mean+anom)
177    o consistent with addition of ptracer and ssh in pkg/profiles
178    o profiles: adding ptracer and ssh
179    o testreport: change multi-test output-file name
180      (from output.txt.{name} to output.{name}.txt)
181    o profiles: now ok for mutli-tiles case
182    o seaice: add 4 parameters for different advection schemes for area,
183      (effective) seaice thickness, enthalphy, and snow height. Their default
184      is the standard parameter SEAICEadvScheme
185    o calc_gw:
186     - add cosFacU in zonal viscous flux (harmonic.visc.).
187     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
188       of tutorial_plume_on_slope.
189    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
190    o calc_gw: true flux-form, account for horizontal grid spacing.
191      update rotating_tank results, but not plume_on_slope (affected at
192      truncation level, 11 digits).
193    
194    checkpoint58l_post
195    o calc_gw:
196     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
197     - remove side-drag for now (need to fix it); update plume_on_slope results.
198     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
199    o commit code to make SST/SSS weights spatially variable
200      (based on either variable in-situ or variable initial T/S weights)
201    o pkg/ecco:
202      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
203        now based on horizontally varying weights wthetaLev, wsaltLev
204      * cost_averagesflags now returns year indices in addition to day, month
205      * sflux balance is performed on annual basis
206        (sflxumm, sfluxmm2, bal_sfluxmm)
207      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
208        including separate counting and multipliers
209    o pkg/rbcs
210      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
211    
212    checkpoint58k_post
213    o testreport:
214     - always build in dir. "build" (if not there, mkdir build instead of building
215       & running in input)
216     - run in dir run (if it exists), in build otherwise.
217     - call prepare_run (if input/prepare_run exists)
218     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
219    o pkg/exf modifications to interpolation and rotation routines for more
220       reasonable treatment of North Pole singularity: for tracers North Pole
221       value is set to northernmost zonal-mean value, for zonal velocity it is
222       set to zero, and for meridional velocity it is set to northernmost value.
223    o pkg/exf/exf_check_range.F
224     - add tile index to diagnostics and move stop statement to the very
225       end of the routine.
226    o pkg/diagnostics: (diagnostics_main_init.F)
227      define title of isomorphic variables according to the current config.
228    o pkg/thsice with pkg/seaice dynamics:
229    - fix domain of computation (interior only, required for exf) and do exchanges
230    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
231    o towards a standard way of dealing with multi-threading in MONITOR
232      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
233    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
234       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
235    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
236    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
237    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
238       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
239    o tracer advection:
240     - clean-up and simplify calc_common_factors.F
241     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
242       advection subroutine (but still not used within DST advection S/R)
243    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
244    
245    checkpoint58j_post
246    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
247      from file (collects calls previously in FORWARD_STEP)
248    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
249    o adjoint store dir. adjusted accordingly
250    o genmake2
251      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
252    
253    checkpoint58i_post
254    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
255      on wind stress (SEAICEstressFactor defaults to 1.)
256    o Total number of Timers is finite (<=40): comment out 2 non-essential one
257      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
258    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
259      on CS-grid: no longer loosing mass.
260    o exf & curvilinear-grid: no longer modify longitude xC & xG.
261    o pkg/ggl90: fix sloppy output and fix a bug
262    o pkg/seaice: added SEAICEuseEVPpickup parameter
263      - Set to false in order to start EVP solver with
264        non-EVP pickup files when using SEAICEuseEVP
265      - fix sign error in diffusion in seaice_calc_rhs
266    
267    checkpoint58h_post
268    * Modifications for bottom topography control
269      o replace hFacC by _hFacC at various places
270      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
271      o add non-self-adjoint cg2d_nsa
272      o update autodiff support routines
273      o re-initialise hfac after ctrl_depth_ini
274      o works for 5x5 box, doesnt work for global_ocean.90x40x15
275    * Adding verification for 5x5 box (4-layer) bottom topography control
276    
277    checkpoint58g_post
278    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
279       used for mean seasonal cycle, mean diurnal cycle); add an example
280       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
281    o pkg/ggl90:
282      - add parameter (minimum surface kinetic energy)
283      - fix bug (avoiding division by zero)
284    o couple pkg/thsice to pkg/seaice:
285      - modify advection in seaice to accomodate new scalar fields to be advected
286      - only muliDimAdection scheme work with seaice/thsice
287      - mapping of thsice-variables to seaice-variables, back and forth
288      - does not break the verification experiments, but does not give the
289        desired results either
290    o pkg/seaice
291      - make (default) second order advection a bit less confusing?
292    
293    checkpoint58f_post
294    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
295      to pkg/seaice):
296      - new routines thsice_map_exf and thsice_get_exf provide the interface
297      - add an additional formal parameter to thsice_solve4temp
298    o pkg/exf:
299      - add new fields wspeed, snowprecip (to be able to couple to thsice)
300      - correct Stefan-Boltzmann constant
301      - new parameter for longwave surface emittance
302      - separate some stuff from exf_bulkformulae into new routines  
303        exf_radiation, exf_wind
304      - add new parameters and constants: longwave emissivity for ocean, ice
305        and snow, evaporation parameters over ice
306      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
307        either wind from stress or stress from wind
308    o pkg/thSIce:
309    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
310    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
311       and THSICE_CALC_THICKN
312    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
313    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
314      to make debugging easier.
315    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
316    o pkg/bulk_force:
317      - clean-up comments and parameters ;
318      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
319    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
320      generate new output for test-experiment: aim.5l_cs.thSI
321    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
322      testreport accordingly
323    
324    checkpoint58e_post
325    o SEAICE_CGRID adjoint done
326    o R_STAR adjoint implemented.
327      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
328      * need to sort out init. of h0facc, etc.
329    o Make pkg/profile fully independent of ecco,cost, etc. stuff
330      to be able to use it in pure forward.
331    
332    checkpoint58d_post
333    o upgrade simple test-experiment to tutorial example:
334     step.1: duplicate the experiment and (step.2) will remove the old copy.
335      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
336      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
337      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
338      tutorial_global_oce_biogeo    <- copy of dic_example
339      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
340      tutorial_plume_on_slope       <- copy of plume_on_slope
341      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
342      tutorial_global_oce_optim     <- empty for now (David ?)
343      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
344     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
345    o correct a sign problem in cost_scat.F
346    o obcs and ptracers: fix boundary conditions for advections schemes
347      with larger stencil
348    o thsice adjoint: start
349    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
350      completeness
351    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
352      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
353    o ptracers adjoint:
354      * avoid extensive recomputatations
355      * fix missing re-init. of gptr (missed by TAF)
356    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
357      me to turn off the excessive output to STDOUT that this package produces
358    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
359      and add those terms in Vector-Invariant formulation.
360    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
361      if the control period (xx_hfluxperiod etc) is 0
362    o in profiles pkg, clean routines and fix details
363    o in ecco pkg, reading ssh data:
364      fix problem in case the model does not start at iter0=0
365    o fix mnc-pickup/restart for ptracers
366    o new package prifiles:
367      code to compute profile-based cost by Gael Forget
368      (modifs in ecco, ctrl, autodiff)
369    o Benign bug fix in initialization (spotted by M. Mazloff) of
370      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
371    
372    checkpoint58c_post
373    o adjoint: finish NLFS adjoint and provide reference output in
374      verification/global_ocean.90x40x15/results_ad_nlfs
375    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
376      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
377      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
378      with SEAICE_CGRID defined.
379    o move calendarDumps from "data" to "data.cal" and clean-up the code
380      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
381    o add useEXF & useCAL flags (for now, set in hard-coded way)
382    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
383      (were missing in NH mode, and wrong in quasihydrostatic mode).
384      waiting for Chris updated version of calc_gw to add those CALLs.
385    o fix bug in quasihydrostatic S/R ;
386      add a test for this option: global_ocean.90x40x15.qshyd
387    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
388      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
389    o add on/off flag useOffLine for package OFFLINE
390    o seaice:
391      - modify advection so that it works also on the C-grid
392      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
393        problem in multi-tile runs with C-grid
394      - add flags for clipping ice velocities and/or masking solver forcing
395      - fix drag (ocean on ice) formulation and a bug that caused noise in the
396        C-grid solver
397      - added a few comments to seaice_diffusion.F
398      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
399        are now exclusive)
400      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
401        required re-ordering the code a little:
402       + make DAIRN global variable (defined in SEAICE)
403       + move computation of the viscosities eta and zeta into a new separate
404         routine (because I need to recompute them in seaice_ocean_stress.F)
405    
406    checkpoint58b_post
407    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
408      update output.txt of exp. aim.5l_cs.thSI
409    o various mnc cleanups and improvements:
410      + shrink lookup tables by factor of ~4
411      + better error reporting when running out of lookup space
412      + able to handle longer path/file names (up to 500 chars)
413    o adjoint:
414      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
415      - TBD: "hidden" mom_vecinv recomp. in dynamics
416    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
417     (allow to differentiate between forcing components using new integer flags:
418      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
419     and add new flag to put Dissipation tendency out of Adams-Bashforth.
420    o ecco
421      - enable trend removal from SSH anomaly obs.
422    o adjoint
423      - a fix for PmEpR when #undef EXACT_CONSERV
424      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
425      - try to fix "hidden" recomp. in forward_step for NLFS
426        (NLFS seems broken sometimes after I checked it in)
427    o seaice:
428     - add c-grid version of the dynamic solver:
429       + three new routines that are the c-grid substitute lsr, dynsolver
430         and ostres
431       + put a few fields that were local to dynsolver into global common
432         blocks, so that I can move the computation of stresses etc into
433         seaice_lsr (saves coding but may break the adjoint).
434     - replace more hardwired parameters by runtime parameters
435     - add ice masks that mask the rhs of the implicit solvers where there
436       is no ice (commented out in seaice_dynsolver, because i am not sure
437       if this works properly), eventually this should replace the clipping
438       of ice velocities in seaice_dynsolver to +/-40cm/s.
439    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
440      include it only where its needed
441    o move balancing of fluxes before the call of external_forcing_surf
442    o seaice:
443      - correct units of turning angles (now they are really in degrees)
444      - move computation of GWATX/Y out of main routine into dynsolver
445      - initialize GWATX/Y in seaice_init
446    o Apply mask on Fresh-Water flux (needed for SSH forcing).
447      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
448    o seaice: add runtime flags for turning angles (default to zero)
449    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
450      and trend from exf forcing and ctrl control adjustments
451    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
452      (since checkpoint57x_post)
453    o change the default rotation period to 86164.s = the Earth rotation
454    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
455      and based on a reference stratification. Tested within hs94.cs-32x32x5.
456    o seaice advection: add code for choosing between the default (2nd order
457      central differences) and multiDim advection schemes provided by
458      pkg/generic_advdiff
459    o seaice:
460      - removed all references to SEAICE_GRID.h fields from
461        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
462        (cubed-sphere configuration will change a little)
463      - grid computations in seaice_init are obsolete now.
464      - cleaned up code a little so that is easier to read (hopefully).
465      - added new (better?) discretizations of default advection and diffusion
466        (turn on with SEAICEuseFluxForm)
467      - replace 1 in 3d global fields by kSurface in growth.F
468      
469    checkpoint58a_post
470    o seaice:
471      - bug fix in advect.F
472    o shelfice:
473      - separate shelfice load anomaly from pload (breaks with time
474        dependent forcing), => introduce constant field shelficeLoadAnomaly.
475        Its default is 0., but it may be computed more cleverly from (unknown)
476        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
477        done offline. A good approximation of the pressure load anomaly is
478        necessary to avoid large initial adjustment processes underneath
479        deep-reaching shelfice.
480      - small fix in ISOMIP shelfice_thermodynamics
481      - add more sophisticated thermodynamics of Hellmer (1989), this is
482        now the default
483      - give a few constants more intuitive names
484    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
485      if bulk formulae are used in long integration (especially EmPmR). Turn
486      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
487      if balancePrintMean, the imbalance that is substracted is printed to
488      STDOUT.
489    o fix bug (typo) in obcs_apply_eta.F
490    o add a new package shelfice which enables us to model the circulation
491      underneath shelf-ice with draughts of hundreds of meters.
492     - works
493     - to do: + include improved thermodynamics
494              + check whether kSurfC (from model/inc/SURFACE.h) can be used
495                instead of new field kTopC
496              + can we use topoFile, Ro_surf and existing code in ini_depth.F
497                instead of new field R_shelfIce and new code in ini_depth.F
498                and ini_mask_etc.F?
499              + adjust vertical mixing schemes?
500    o seaice pkg:
501     - add a cpp-flag to include a simple formula for a salinity dependent
502       freezing point of sea water at the surface
503     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
504       meridional stresses are now different (and hopefully correct)
505    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
506       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
507       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
508    o pkg/diagnostics: add options and parameters for regional-statistics
509       diagnostics ; define regions by reading a region-mask from a file
510       (might add other options later)
511    o pkg/bulk_force:
512     - add option and parameters to use AIM surface-flux formulae.
513     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
514       others forcing fields (defined in PARM05, parameter file "data") are loaded
515       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
516     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
517     - use the right EXCH call for uwind,vwind (to work on CS-grid).
518     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
519       and parameters (note: calcWindStress replaces .NOT.readwindstress).
520     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
521    
522    checkpoint58
523    o add "--embed-source" option to genmake2 which, when the supporting
524      tools can be compiled (as determined by genmake2) will turn on the
525      embed_files package which then embeds the entire MITgcm source code
526      (*.[fFhc] + Makefile) used for the build within the executable
527      - requested by CNH but off by default
528      - adds a paltry <9MB to the mitgcmuv executable in most cases
529      - only writes the output when useEMBEDSRC in eedata is true
530    o clean up 3-dim. relaxation codes:
531      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
532      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
533      * Thanks to Tom Haine for testing!
534    
535    checkpoint57z_post
536    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
537      affects output (@ truncation level) of exp. plume_on_slope ; updated.
538    o fix the pickup behavior for obcs in combination with ptracers
539    o fix a bug in ptracers_external_fields_load
540    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
541      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
542    o transfered surface NH pressure to eta field (if exactConserv).
543    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
544         and update lab_sea output.txt file.
545    o completing 3-dim. relaxation code: additional term
546         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
547      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
548      * At compile time, in "EXF_OPTIONS.h" set
549          #define  ALLOW_CLIMTEMP_RELAXATION
550          #define  ALLOW_CLIMSALT_RELAXATION
551      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
552          tauThetaClimRelax3Dim = 15552000.0,
553          tauSaltClimRelax3Dim  = 15552000.0,
554      * 3 cases:
555          1) Use a constant-in-time 3-dim. field
556          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
557          3) Real-time relax. to time-evolving prescribed field
558    o Adding Laplacian-type smoothness constraint on
559      initial and boundary (forcing) controls (ic, bc)
560      * enable at compile-time via
561        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
562      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
563      * Absolute scale somewhat unclear so far
564      * no area weighting was included since no other cost term does so far
565    
566    checkpoint57y_post
567    First step for a NLFS adjoint
568    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
569    o new init. routines for calc_r_star, calc_surf_dr
570    o still need to deal with ini_masks_etc
571    o testreport seemed happy
572    checkpoint57y_pre
573    
574    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
575    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
576    o add new offset feature to offline pkg (plus minor cleanup)
577    o cfc fixes for final year of integration
578    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
579      be in GCHEM_OPTIONS).
580    
581    checkpoint57x_post
582    o fix testreport Pb in multiple test experiment.
583    o cleanup our namelist syntax in verification:
584      - make it more F95 standards compliant (some work still needed)
585      - allows the vast majority of our tests to work with gfortran
586    o Non-Hydrostatic:
587     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
588     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
589    o Allow to apply AB on T,S rather than on AB(gT,gS):
590     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
591     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
592       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
593     - need a "clever" read_pickup to restart from the other AB formulation
594    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
595    o remove some unused variables (reduces number of compiler warnings)
596    o adjoint
597      * Disable useVariableViscosity for adjoint for time being
598        (there are a number of extensive recomputations)
599      * Initialize certain variables needed for adjoint
600    
601    checkpoint57w_post
602    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
603                 fix the singleCpuIO RS version of MDSWRITEFIELD
604       and add a WARNING if using globalFiles=T with multi-processors.
605    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
606      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
607    o tracer advection scheme:
608      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
609       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
610       was not very convenient).
611      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
612       (further tests needed for the implicit DST & Flux-Limiter schemes).
613    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
614      and sRef for convenience, handy, when you want to initialize
615      ptracers in a large domain with a constant non-zero value. Also,
616      untangle ptracers_init.F a little.
617    
618    checkpoint57v_post
619    o change dome exp. to use variable viscosity in side-drag terms.
620    o remove all the files from the cfc_offline test since they are now
621      incorporated into tutorial_cfc_offline which has been producing
622      identical results for a few days of testing
623    o add new parameter: sideDragFactor to enable half-slip-side BC
624      and change side-drag S/R to use viscosity from mom_calc_visc
625      (can switch back by setting sideDragFactor=0.); affects results at
626      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
627       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
628    o vorticity & strain are now computed without masking, to account for
629      no-slip-side BC in variable viscosity calculation ; mask is applied
630      anyway later on, before computing advection/coriolis terms.
631    o modify exp4 to test new obcs support for reading from external files
632      and for passive tracers
633    o fix behavior of ptracers_monitor when monitor output is written to a
634      netcdf-file; still not independent of monitor.F (writes in the same
635      file).
636    o change default value of tRef (put a uniform, meaningful value for ocean
637      & atmos) and initialize sRef (was missing, as Martin mentioned).
638    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
639      to be proportional to enstrophy dissipation length.  Thus,
640       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
641      This is now consistent with Smagorinsky and with the manual.
642    
643    checkpoint57u_post
644    o OBCS and PTRACERS: add open boundary support for passive tracers
645      - either use homogenous (pseudo) v.Neumann conditions or prescribe
646        OB-values from file; this is not different from the way theta and salinity
647        are treated
648      - however, Orlanski-radiation conditions are not supported, and the model
649        will stop if you use pTracers and Orlanski at the same time.
650      - beefed up the rountine obcs_external_fields_load: now only those open
651        boundary values are overwritten with values from files for which there
652        are really files, otherwise the OB-fields remain untouched. This makes
653        it possible to use different OBs at different ends of the domain (as
654        with EXF)
655    o reduce number of exch calls in shap_filt (s2).
656    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
657      truncation level) 4/5 MLAdjust test results (11&12 digits match).
658    
659    checkpoint57t_post
660    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
661    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
662      same truncation, independent of the face number: affects affects several
663      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
664    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
665      note that biharmonic viscosity + no-slip was not tested in any experiment.
666    o fix bug in non-linear free-surf side-drag ; generate new output for
667      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
668    o make mnc honor the writeBinaryPrec flag for most kinds of output
669    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
670    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
671      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
672    o add brackets in multi-terms sum to get same truncation, independent of
673      the face number (manage to get exactly same value of gU,gV at the cs-edge)
674      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
675    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
676      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
677      a maximum grid-scale Reynolds number.  Also, changes all length calculations
678      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
679      Suggested values of viscosity parameters found in mom_calc_visc.
680      Many new viscosity diagnostics available.
681    
682    checkpoint57s_post
683    o Add clearing-house for viscosity calculations, mom_calc_visc and
684      correct numerous bugs in LeithD and Smagorinsky discretizations.  
685      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
686      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
687      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
688      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
689      The Strain-Tension form is now called with useStrainTensonVisc=.true.
690      ViscAhStrain and viscAhTension are now retired.
691    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
692    o In response to JMC's bug report, genmake2 now ignores any soft-links
693      that it finds in the *current* directory when searching for files.
694      Soft-links found in any other source directories will still work as
695      they did before.
696    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
697      a C routine to unlimit the stack size
698    o mnc-ify pkg/aim snapshot vars
699    o mnc-ify pkg/land as requested by Daniel
700    o various changes to mnc including:
701      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
702      - output can now be grouped so that all files within a group
703          change the ITER portion of their names in lock-step together
704      - can now read ("global") PER-FACE (in addition to PER-TILE) files
705          and works with both EXCH1 and EXCH2 (but needs more testing)
706      - writing works for all verification test cases w/ g77 on Linux
707    
708    checkpoint57r_post
709    o make MNC variable initialization happen earlier
710    o add diagnostics for (almost) each term of the momentum Eq.
711    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
712    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
713    o remove MINIMAL_TAVE_OUTPUT option ;
714      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
715    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
716      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
717    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
718    o add time-dependent SST, SSS control
719    o cost terms in ecco/ modularized (new cost_generic.F)
720    o cost_averages routines are modularized (new cost_averagesgeneric.F)
721    o new infrastructure for seaice model vs. obs misfits in seaice/
722      * driver from the_main_loop.F is seaice_cost_driver.F
723      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
724      * gradient check in Exp. 6a of natl_box_adjoint/
725    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
726      (see README file)
727    
728    checkpoint57q_post
729    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
730    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
731      - bug was reported by Jean-Michel and Ian Fenty
732    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
733      update exp. cpl_aim+ocn output.
734    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
735      Needed for high-res. runs with large global files
736      to be able to limit tapelev size
737    o Changed some tests for adjoint:
738      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
739      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
740      * global_ocean.90x40x15/ back to default 3-level checkpointing
741    o Modifications to enable scripted COMMON to MODULE conversion
742      * verification/OpenAD/code/ has necessary scripts and description;
743      * converts, compiles and runs successfully;
744    
745    checkpoint57p_post
746    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
747    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
748      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
749    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
750    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
751      (was already the case for dissipation with mom_vecinv,
752       and also the case for grad.PhiHyd when staggered-timeStep)
753      This will allow to put dissipation out-off the AB time-stepping.
754     Unfortunately, affects truncation error. Update output of exp. that "fails"
755      (cg2d matching number) and leave the others for later: front_relax(10),
756      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
757      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
758    
759    checkpoint57o_post
760    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
761      (2) its ready to be documented during the 20050801 DocFest
762    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
763      for ideal_2D_oce and lab_sea on linux_ia32_g77
764    o set to #undef CTRL_SET_OLD_MAXCVARS_30
765      in global1x1_tot/code_seaice_adj to access indices 32, 33
766      (worth another tag)
767    
768    checkpoint57n_post
769    o adding precip control xx_precip 32
770    o adding swflux control xx_swflux 33
771    o Replacing 10 forcing penalty cost routines by 1 generic.
772    o Implementing partitioning in time-mean and variable adjustment
773      for atmos. state.
774    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
775    o in natl_box_adjoint:
776      * updated exp 1 to 10
777        (but does not have time-mean vs. variable split results yet)
778    o updated global1x1/*_seaice_adj/
779      to incorporate latest changes
780    o enable useSingleCpuIO for mdsio vector routines
781      (applies in particular to tapelev I/O)
782    o removed inefficient K-loop in all active_file*control*.F
783    
784    checkpoint57m_post
785    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
786      and advect_cs (use EXCH-2 and standard cs-32 grid files).
787    o pkg/exch2: filling of face-corner halo regions is optional
788      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
789    
790    checkpoint57l_post
791     tag before updating tutorials (pre-release-2)
792    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
793       for output and interpolation of input fields onto model grid)
794    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
795       Affects results of exp. rotating_tank ; update output.txt.
796    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
797          and taking the square quantity and/or using a fraction-weight field.
798    o fix aim_diagnostics_init.F mate numbers.
799    o add mnc output capability to diagnostics/diagstat and update
800      our cvsignore files for the ACSII output generated
801    
802    checkpoint57k_post
803    o lab_sea now uses diagnostics package and provides a suite of
804      new EXF diagnostics output.
805    
806    checkpoint57j_post
807    o exf
808      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
809        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
810        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
811      * extended diagnostics output
812        - now includes all EXF variables
813        - hs, hl moved to common block
814        - separate S/R for diagnostics, called after ctrl vector is added
815        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
816        - EXFqnet contains true Qnet (i.e. includes qsw)
817      * updated verif. lab_sea, global_with_exf
818      * Rearranging hflux (exf_mapfields -> exf_getforcing)
819        to ensure that diagnostics sees a true EXFqnet
820    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
821    o diagnostics pkg: change pointers so that 1 diagnostic can be used
822      several times with different frequencies.
823    o mnc-ify the thsice package as requested by Daniel Enderton
824      - the monitor--MNC output needs work
825      - many attributes need to be added (most are currently blank)
826    o mnc-ify theaim_v23 package as requested by Daniel Enderton
827      - many attributes need to be added (most are currently blank)
828    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
829    o add Sadourny like discretization to the 4th.O vorticity advection scheme
830    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
831      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
832         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
833    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
834     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
835    
836    checkpoint57i_post
837    o Diagnostics package was changed: diagnostic allocation is now deactivated
838      by setting an empty file name in the namelist (used to be by setting 0 frequency)
839    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
840      add 1rst Order upwind vertical Shear.
841    o add a quick fix for A/B checkpointing in OFFLINE mode
842    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
843      end-run around the C/Fortran linking horror in eesup/src/timers.F
844    o added pkg/runclock: allows user to terminate run based on wall clock
845    o added non-hydrostatic scaling parameter: nh_am2
846    o pkg/my82: futile attempt to make results compiler-independent by adding
847      some "_d 0", etc. no effect.
848    o for mnc output, fill the 'T' coordinate var with myTime and create a
849      separate 'iter' variable for iteration count
850    o pkg/diagnostics:
851      add new capability: output of Global/Regional & per-level statistics ;
852      tested against monitor output (including land & thSIce) on various exp.
853    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
854    
855    checkpoint57h_done
856      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
857      data.diagnostics, data.gchem, data.ptracers) is done.
858    
859    o pkg/diagnostics: prepare for Global/Regional statistics.
860      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
861    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
862      and rename it: DIFFERENT_MULTIPLE
863    
864    checkpoint57h_post
865    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
866    o pkg/diagnostics: change output frequency, now in seconds (instead
867      of Nb of iterations). This requires to change data.diagnostics.
868    checkpoint57h_pre
869    
870    o in mnc, let the user create the output dir if both mnc_outdir_date
871      and mnc_outdir_num are false
872    o add fflags() to pkg/diagnostics which allows one to specify, on a
873      per-file basis, the file precision [default behavior is unchanged]
874    o added diagnostics to pkg/kpp, including computation of mixed layer
875      depth based on a temperature/density criterion
876    o updated verification/natl_box to test the new pkg/kpp diagnostics
877    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
878    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
879    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
880      not mnc -- this mistake was found by JMC and is now corrected
881    
882    checkpoint57g_post
883    o add Adams-Bashforth 3rd Order time stepping:
884      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
885      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
886    checkpoint57g_pre
887    
888    o make lambda[Theta,Salt]ClimRelax spatially varying
889      (default remains spatially uniform constant based on tau)
890    o added new control variables
891      * init. uVel, vVel, etanN
892      * lambda[Theta,Salt]ClimRelax
893    o separate masks used for ctrl_pack/unpack 'from write_grid' output
894      (suggested by G. Forget)
895    
896    checkpoint57f_post
897    o add parameter "baseTime" = model base time = time at iteration zero
898      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
899      account for baseTime shift
900    o move Coriolis arrays from PARAMS.h to GRID.h
901    checkpoint57f_pre
902    
903    o mnc-ifying the seaice package
904    o introduced an alternative length scale calculation for use in the limiting
905      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
906    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
907    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
908      as well as grad(vort3).  Made it compatible with both approximate form
909      for the cubed sphere and full form of these gradients.  Added flag
910      useFullLeith to select between approximate and full form.  
911    o add "d0" in getcon.F to reduce differences between compilers/platforms
912      update output.txt of exp. fizhi-gridalt-hs
913    o change port_rand funtion to allow to set the seed.
914    o fix obscure MNC bug involving conversion between reals and integers
915      - it caused no problems with certain (eg. gcc, ifc) compilers but the
916        new version is now more standards-compliant
917    o adjoint-related modifications
918      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
919      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
920      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
921    
922    checkpoint57e_post
923    o Adding eddy stress controls a la Ferreira et al.
924    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
925    
926    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
927      update output.txt of exp. fizhi-gridalt-hs
928    o add more "Z" dimensions and associated coordinate vars to MNC
929    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
930    o parameter calendarDumps: when set, approximate months (30-31 days) and years
931      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
932      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
933      months and years.  Requires pkg/cal.
934    o diagnostics: add pickup functionality
935      - off by default for backwards compatibility
936      - current version only uses MDSIO -- MNC will be added
937    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
938    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
939    
940    checkpoint57d_post
941    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
942    o modify verification/ideal_2D_oce so that it tests the creation of mnc
943      output from the diagnostics package
944    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
945    o make genmake2 more portable by using ".$FS" instead of ".f" for more
946      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
947    o add coordinate variables to the MNC output from the diagnostics package
948    o change MNC-flags default value: true when useMNC=TRUE
949    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
950      the ability (off by default) to read the grid information using MNC
951    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
952    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
953    o do snap-shot diagnostics at the middle of the time-interval (instead of
954      at the end).
955    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
956      new test for AIM with thSIce + slab-ocean
957    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
958    o move state variable diagnostics to the beginning of the time step ;
959      (note: still needs some work specially for snap-shot diagnostics)
960      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
961    
962    checkpoint57c_post
963    o Change testing option (-ieee) to get closer agreement between g77 & ifort
964    o generate new output.txt files on faulks with g77 & the new -ieee option
965    checkpoint57c_pre
966    
967    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
968      update output.txt of exp. global_ocean.90x40x15
969    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
970      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
971    o add saltFlux(+File) forcing capability with periodicExternalForcing
972    o allow to use pkg diagnostics for GM-Redi & ThSIce output
973    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
974    o improvements for the MNC output from DIAGNOSTICS:
975      - correct handling of the unlimitied dimension
976      - all dims now have associated coordinate variables
977      - variables located at U, V, and Corner ("Z") points are now written
978        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
979        *all* data points are output
980    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
981    o added pkg/seaice/seaice_monitor.F
982    o mdsio_readfield.F can now read files visible only to master MPI process.
983    o pkg/seaice: some test code for ice-modified ocean stress
984    o exf_getffields interpolation defaults to bilinear for all scalar forcing
985      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
986      spurious negative numbers for precipitation and humidity.  Will cause
987      some small numerical differences for integrations using pkg/exf/exf_interp.F.
988    o pkg/ctrl/
989      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
990        May be enabled via doPackDiag
991      *  introduce z-scaling of
992         + gradient (doZscalePack) and
993         + control (doZscaleUnpack)
994    o pkg/mdsio/
995      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
996      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
997    
998    checkpoint57b_post
999    o simplify options in diagnostics_fill arguments (remove weird combinations)
1000    o fix MNC coordinate variables so that they now contain per-face index
1001      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1002      general, EXCH2 grids are only aligned to a "local" coordinate system
1003    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1004    o Implement instantaneous output within pkg diagnostics:
1005      setting a negative frequency in data.diagnostics produces
1006     "snap-shot" output (as opposed to time-average if freq > 0)
1007    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1008      NOTE: change ptracer diagnostics name: use 2 characters to work with
1009            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1010    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1011      becomes the coordinate variable for the 'T' dimension
1012    o add CF-style coordinate variables to MNC
1013      - just a first cut:  numbers are meaningless on the cubesphere and
1014        missing along the T axis but otherwise it works!
1015    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1016    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1017    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1018      this is based directly on what the model compute, so that the content of
1019      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1020    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1021    o clean up build options files for SunOS, in particular
1022      - remove -traditional from xmakedepend
1023      - change -xarch=v9 to -xarch=native for f77
1024      - restore use of make (not gmake)
1025      - add CC=gcc if using g77
1026    o changes per discussion of AM, JMC, & EH3 today:
1027      - move redundant "grid" variables out of "state" -- in preparation of
1028        creating proper CF-style coordinate variables and in recognition
1029        that any/all grid variables can be easily copied (eg. w/NCO) from
1030        the grid files into any of the other NetCDF files
1031      - *always* output grid variables with MDSIO (this will eventually be
1032        changed)
1033      - output MNC grid file if useMNC is true
1034    o every instance of _END_MASTER() has been found and replaced with
1035      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1036      preprocessors
1037    o re-arrange diagnostics pkg initialisation:
1038     - allow each package to extend the available diagnostics list
1039     - add some checking and fix small problems (multi-threaded, ...)
1040     - new S/R diagnostics_fill (replace fill_diagnostics):
1041       look through the short list of active diag. (instead of the long list)
1042       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1043    
1044    checkpoint57a_post
1045    o this set of changes restores TAMC compatibility
1046      tested for global_ocean.90x40x15 adjoint on trough
1047      (what a pain)
1048    
1049    checkpoint57a_pre
1050    o some modifs in tools/build_options for sunos
1051    o call ctrl_pack for ctrl at end for optimcycle=0
1052    
1053    checkpoint57
1054    o add horizontal bi-harmonic viscosity for vertical velocity
1055      - new parameter viscA4W (defaults to viscA4)
1056      - affects only non-hydrostatic code
1057      - to be done: no-slip lateral boundary conditions
1058    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1059    o implement Implicit Vertical advection for pTracers
1060    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1061      (implemented also for implicit vertical diffusion & advection)
1062    o OBCS: extend application of tracer open boundary conditions
1063      to a strip beyond the boundary of width Olx/Oly
1064    o add call monitor to TAF set of required calls (flow directives)
1065      and include in natl_box_adjoint
1066    o untangle a few ifdefs related to cost, ctrl, autodiff
1067      untangel a few ALLOW_ECCO_OPTIMIZATION
1068    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1069      (theta2, salt2 in ecco_cost_weights)
1070    
1071    checkpoint56c_post
1072    o OBCS as control variables
1073      - update ctrl_ad_diff.list, obcs_ad_diff.list
1074      - remove balance of obcs controls from default
1075      - fix index bug nobcs in ctrl_init
1076      - fix dummy fields filen in ctrl_pack
1077      - add dummy weights for obcs
1078    o lsopt: comment out fort.94 output
1079    o optim:
1080      - remove unnecessary header files
1081      - adjusted namelists
1082      - add xerbla.F to Makefile
1083    o exf:
1084      - multiple modifications of exf_check_range
1085      - unit change in exf_init_runoff from [m/year] to [m/s]
1086    o mdsio:
1087      - i/o-vector change debugLevel from debLevA to debLevB
1088    
1089    checkpoint56b_post
1090    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1091      is called from DO_THE_MODEL_IO
1092      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1093      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1094      - clean up PTRACERS_WRITE_TIMEAVE a little
1095    o add another verification experiment that tests both the cfc-pkg and
1096      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1097      reactive tendencies treated inline with regular timestepping
1098    o testreport previously did a lousy job of comparing small numbers, so
1099      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1100      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1101      testreport.
1102    o ptracers_monitor: bug fix for MPI
1103    
1104    checkpoint56a_post
1105    o GCHEM: finish reorganizating the package
1106      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1107        (introduces another 3D-array for each passive tracer, but only if
1108        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1109        gchemTendency is not needed because the timestep is done separately)
1110      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1111      - GCHEM is now---more or less cleanly---separate from PTRACERS
1112      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1113        so clear to me how that should be done in a general way.
1114    o CFC: improve formatting of output in CFC_ATMOS
1115    o PTRACERS:
1116      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1117        that ALL experiments with ptracers enable can be checked. This makes
1118        GCHEM_MONITOR obsolete.
1119      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1120        monitorFreq
1121      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1122    o add PTRACERS (PTR0[1-5]) to testreport output
1123    o exf_check_range:
1124      * default changed to .TRUE.
1125      * will check values for niter0 if debLevA, every timestep if debLevB
1126      * STOP in exf_check_range if 'out of range'
1127      * range chosen generous to allow for potential extema
1128      TBD: a version with stricter range
1129           permitted range would be runtime parameters
1130    o GMredi:
1131      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1132      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1133      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1134    o GCHEM:
1135      - move call to GCHEM_FORCING_SEP, so that it is now called before
1136        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1137      - introduced a useGCHEM runtime flag and applied it everywhere.
1138      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1139        this flag is now only visible within GCHEM-pkg routines.
1140      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1141        be replaced by a 3D array that is computed before thermodynamics; for
1142        this, the tracer ID iTracer had to be included into the parameter list
1143        of ptracers_forcing
1144      - set up forward_step to call gchem_forcing, that will replace
1145        gchem_forcing_int in ptracers_forcing
1146      - cleaning up
1147    o small cleaning of exch2: remove files that are also in eesupp/src
1148    
1149    checkpoint56
1150    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1151    o mnc: cleanup "full" files--fixes out-of-memory problem
1152    o ECCO-GODAE
1153      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1154      * fully merged and updated from SIO code
1155        windstress sign change affects
1156        - exf_inscal_[u/v]stress
1157        - sign of xx_tau[u/v] adjustments
1158        - signs in cost_scat
1159      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1160      * natl_box_adjoint updated and compressed
1161      * 2-level checkpoint switch added
1162        (tested in EXP. 1 of natl_box_adjoint)
1163      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1164    o SVD
1165      * first complete, non-hacked version for SVD calculations
1166      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1167        performed via direct access files admtlm_vector.it????
1168        (via ctrl_[un]pack)
1169      * optimcycle is used for ARPACK iteration counter
1170        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1171      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1172        and add linear transforms where necessary
1173      * controls are initial/final SST, SSS (can be extended; need to check
1174        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1175    o mdsio: filename info to both stderr, stdout
1176    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1177      from sign change
1178    
1179    checkpoint55j_post
1180    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1181      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1182    o add consistent build directories and .cvsignore files to verification
1183    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1184    o make all subroutines 30 or less characters in length for certain older
1185      compilers to work (a thorough search only turns up two routines in
1186      pkg/ptracers)
1187    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1188      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1189    
1190    checkpoint55i_post
1191    o change arrays for total vertical diffusivity (2.D if explicit,
1192      3.D if implicit) ; each ptracer uses its own background value.
1193    o added mnc/NetCDF output capability to ocn_compon_interf
1194      - added bits to verification/cpl_aim+ocn so that it can run on
1195        ITRDA and other clusters without the mpirun "-wd" option
1196    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1197      configuration
1198    o give MNC the ability to create additional files rather than
1199      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1200      - the default is just less than 2GB which is a practical limit
1201        on many systems
1202    o Compute the non-local term using either KPP vertical diffusivity (=default)
1203       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1204    
1205    checkpoint55h_post
1206    o add verification test "vermix"
1207    o remove all the *_ioinc flags and replace with the single global
1208      outputTypesInclusive flag
1209    o allow to set a vertical profile of vertical diffusivity for T & S
1210    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1211    o useMNC moved from data.mnc to data.pkg
1212    
1213    checkpoint55g_post
1214    o Renaming carbon AD experiments to comply with testreport conventions
1215    o Updating adjoint of Held-Suarez hs94.1x64x5
1216    o Fixing directives for non-ECCO forward_step, after ECCO directives
1217      have been fixed to avoid recomp. of do_oceanic_phys
1218      Works well for global_ocean.90x40x15,
1219      but recomp. issue remains for carbon
1220    o Updating adjoint output for natl_box_adjoint after
1221      pkg/ecco has been modified (see taga c55d_post)
1222    
1223    checkpoint55f_post
1224    o rename to timeave_init_fixed
1225    
1226    checkpoint55e_post
1227    o some delicate re-shuffle of store directives to avoid one
1228      extra call of do_oceanic_physics
1229      affects ecco_the_main_loop.F, do_oceanic_physics.F
1230      checkpoint_lev1_directives.h
1231    o NB: this may break global_ocean adjoint temporarily,
1232      but it is clear how to fix it. Will do later, need this now.
1233    
1234    checkpoint55d_post
1235    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1236    o ecco_cost_weights is modified to 1x1 runs
1237    o modifs to allow observations to be read in as
1238      single file or yearly files
1239    o enable to read exf forcing fields as either
1240      single file or yearly files (flag useExfYearlyFields)
1241    checkpoint55d_pre
1242    
1243    o switch between 2-level and 3-level checkpointing
1244    o add ability of MNC to write local and "partial" (eg. 2D slices where
1245      the full 3D field is never actually stored) arrays to NetCDF files
1246      with the correct (that is, the complete multi-dimensional) set of
1247      array indicies
1248      - used in mom_vecinv() to write the diagFreq output
1249      - tested (demonstrated) in verification/aim.5l_cs
1250    o further mnc-ification
1251      - add verification/lab_sea to the list with mnc setups
1252      - fix undefined mnc v-names in cd_code
1253      - add kpp to mnc output (both snapshot and timeave)
1254    o non-hydrostatic code
1255      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1256        in calc_gw.F
1257      - defaults to viscAh
1258      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1259        friction or Leith) in non-hydrostatic mode, as long as there is
1260        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1261    o pkg/cost
1262      extend simple cost functions to treat time mean quantities
1263      (T,U,V) via cost_accumulate_state from cost_tile
1264    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1265        be 2 times larger than the minimum size the advection scheme requires.
1266        now get a perfect conservation of salt in advect_cs test-exp (updated)
1267    o GGL90 (Gaspar's TKE mixed layer)
1268      - add horizontal diffusion of TKE, requires exchanges in
1269        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1270        default. In OPA there is no horizontal diffusion of TKE but the
1271        mixing coefficients are computed from a horizontal average of TKE of
1272        6 points or so. I think that diffusion has a little more physical
1273        justification.
1274      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1275        was in vain)
1276      - mask tke-variable in ggl90_init
1277    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1278    o fix biharmonic diffusion on CS-grid.
1279    o more obcs stuff
1280      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1281        for reading boundary values. This routine is called from
1282        obcs_prescribe_read
1283      - updated obcs_check
1284      - changed sponge layer relaxation parameter units for days to seconds
1285      - turned off sponge layer by default
1286      - changed argument list of OBCS_CALC to myTime+deltaTclock
1287      - fixed about 35 bugs in obcs_external_fields_load
1288    
1289    checkpoint55c_post
1290    o obcs stuff
1291      - new runtime flags useOBCSprescribe, useOBCSbalance
1292      - re-arranged obcs_calc
1293      - moved exf_getobcs to obcs_prescibe_read
1294        obcs_prescibe_read is called after ORLANSKI stuff
1295        and independent of it (executable can contain all).
1296      - updated obcs_check
1297      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1298        These may be necessary only if tangential velocities are
1299        prescribed at OB, not sure, needs testing.
1300    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1301      which simplifies the calls and passes the ifc check-bounds test
1302    
1303    checkpoint55b_post
1304    o add a 2D scalar, Z location, exchange_2 routine.
1305    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1306      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1307      affects advect_cs results (for the wrong reason): update output.txt
1308    o use a more standard discretization for biharmonic viscosity ;
1309     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1310      affects results of dome set-up: update output.txt
1311    o fix gad_advection.F (CubedSphere part), back to version 1.23
1312    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1313    
1314    checkpoint55a_post
1315    o merged code to
1316      * prescribe/read time-dependent open boundaries
1317        (works in conjunction with exf, cal)
1318      * sponge layer code for open boundaries
1319      * each boundary N/S/E/W now has its own CPP option
1320        (healthy for the adjoint)
1321    
1322    checkpoint55
1323    o up-to-date adjoint of previous breaks
1324      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1325      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1326      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1327      - carbon: * remove tr1-related adjoint verification
1328                * add ptracer as control variable
1329    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1330      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1331    
1332    checkpoint54f_post
1333    o in verification/carbin/ remove experiment related to
1334      ALLOW_PASSIVE_TRACER (array tr1 etc)
1335      code_ad/ input_ad/ results_ad
1336    
1337    o add two new packages
1338      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1339        + subject to optimization (memory)
1340      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1341        + subject to reordering (many GOTOs in the original code)
1342        + so far opps is called for every (i,j) point, and then operates in
1343          the vertical; one may want to reorder the scheme in order operate in
1344          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1345          fields)
1346    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1347      - all verification tests compile and run with linux_ia32_g77
1348      - defaults are compatible with current input files--nothing
1349        should change if you were not previously using MNC
1350      - MNC output has been added in numerous places (eg. timeave)
1351        but there are still a few writes not yet do-able with MNC
1352        (this is in progress)
1353      - flags now allow for either/or/both use of MDSIO and MNC and
1354        documentation will soon follow
1355      - numerous small formatting cleanups for ProTeX
1356    o add version info (via BUILD_INFO.h) to MNC and stdout
1357    
1358    checkpoint54e_post
1359    o add two new packages
1360      - pp81 (Packanowski and Philander, 1981), Richardson number and
1361        stratification dependent mixing
1362      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1363      - these scheme operate in a similar manner as KPP (without ghat, of
1364        course), however there is only one diffusivity that is used for both
1365        temperature and salinity (and passive tracers)ç
1366    o add offline package
1367    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1368      provided by Stephanie Dutkiewicz
1369    o genmake2: add ability to search for C compilers and cleanup test output
1370      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1371    
1372    checkpoint54d_post
1373    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1374    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1375      leading to additional shift by 5 days each year of integration
1376       (i.e. leading to considerable offset over the years)
1377    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1378    o start with no AB and no initial filtering (staggerTimeStep):
1379      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1380    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1381      (external loading & cpl import/export stay in forward_step.F)
1382    o update coupling interface to work with new staggerTimeStep
1383    o change MDSIO ptracers_pickup.
1384    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1385    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1386    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1387    
1388    checkpoint54c_post
1389    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1390      this affects (truncation error) output.txt of test-exp:
1391       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1392    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1393    o change Qnet to always be the net heat flux, (+upward).
1394      affects (truncation error) output of natl_box exp.: updated
1395    o define the max number of passive tracers in PTRACERS_SIZE.h
1396    o start to test mnc routinely in exp0
1397    o add sea-ice loading (sIceLoad) as a new forcing field.
1398    
1399    checkpoint54b_post
1400    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1401       impressive on Altix and Opteron systems)
1402    o diagnostics can now write NetCDF files through the mnc package
1403    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1404    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1405    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1406      affects (truncation error) output of lab_sea & natl_box exp.: updated
1407    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1408    
1409    checkpoint54a_post
1410    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1411    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1412    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1413    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1414      + internal_wave (shift in writing cg2d_ini_res)
1415    checkpoint54a_pre
1416    
1417    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1418      - modified verification/lab_sea and natl_box_adjoint accordingly
1419    
1420    checkpoint54
1421    checkpoint53g_post
1422    o prepare splitting of thermodynamics: store convect.counter in common block
1423    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1424      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1425    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1426    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1427    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1428    o restore adjointability
1429    
1430    checkpoint53f_post
1431    o modifications that affect AIM experiment results (update output.txt):
1432      - no advection of S at top interface Nr (pkg/generic_advdiff)
1433      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1434    o AIM pkg:
1435      - include stability function into surf.Flux derivative relative to Tsurf
1436      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1437    
1438    checkpoint53e_post
1439    o merged cylindrical coord configuration
1440    o added rotating_tank experiment
1441    checkpoint53e_pre
1442    
1443    checkpoint53d_post
1444    o faulks upgraded: re-generate output.txt that have changed:
1445       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1446    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1447    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1448    o added Sadourny discretization of Coriolis
1449      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1450      - re-enabled use of omega3 (useAbsVorticity)
1451    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1452      vector-invariant equations
1453      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1454    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1455      hopefully without new bugs
1456      - still to do: biharmonic friction for non-hydrostatic w
1457    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1458    o regenerated output for global_ocean_ebm (using -ieee)
1459    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1460      of mom_common/
1461      - simple re-arrangement of instructions within computing loop
1462    checkpoint53d_pre
1463    
1464    checkpoint53c_post
1465    o new version of coupler for AIM+thSIce and Ocean models
1466     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1467     - land: change Evaporation of snow
1468     - aim with thSIce: fix bug in snow-precip.
1469    o changes to calc_gw.F
1470     - bug fix for w^2 term near the bottom boundary
1471     - (hopefully) improve the lateral slip boundary condtions for use with
1472        partial/looped cells
1473      - because the bug fix changes two verification experiments anyway (exp5
1474        and plume on slope), change the lateral boundary condition from half slip
1475        to the value of no_slip_sides
1476    o ebm package wasnt quite up to the parallel task. Fixed that.
1477    o Adjoint of EBM package + verification
1478      * TLM OK
1479      * ADM not sufficient accuracy yet (needs further testing)
1480    
1481    checkpoint53b_post
1482    o Commiting new energy balance model to repository
1483      * package is pkg/ebm
1484      * verif. is verification/global_ocean_ebm
1485      * references are in ebm_driver.F
1486    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1487    C        Global thermohaline circulation. Part I:
1488    C        Sensitivity to atmospheric moisture transport.
1489    C        J. Climate 12(1), 71-82
1490    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1491    C        Global thermohaline circulation. Part II:
1492    C        Sensitivity with interactive transport.
1493    C        J. Climate 12(1), 83-91
1494    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1495    C        Destabilization of the thermohaline circulation
1496    C        by atmospheric eddy transports.
1497    C        J. Climate 7(12), 1870-1882
1498    o Will need long integration testing.
1499    checkpoint53b_pre
1500    
1501    o created pkg/mom_common in preparation for variable viscosity code
1502    o renamed and split ini_mnc_io
1503    o pkg/land: only liquid water can diffuse or run-off
1504    o AIM using land: soil wetness availability account for snow
1505    o added printMapIncludesZeros to EEPARMS namelist
1506    
1507    checkpoint53a_post
1508    o restore TAMC compatiility for exf_constants.h
1509      (no usage of _d in .h)
1510    o Additional storing in KPP in an attempt to fix
1511      TAMC problem with adjoint of KPP code.
1512      (no success...)
1513      Identical code works fine with TAF.
1514    o Fixed verification/natl_box_adjoint experiments.
1515      Initial conditions for Experiments 4 and 5 are now
1516      set to "SEAICE_initialHEFF=0", which is more reasonable,
1517      and hence gives results closer to that of Experiment 2.
1518      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1519    
1520    checkpoint53
1521    o stable checkpoint with up to date adjoint
1522      TLM tests only run for 1st grdchk at the moment. Its unclear if
1523      this is a code problem or a problem with resetting code for g_
1524      variables that is being autogenerated wrong.
1525      Otherwise:
1526       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1527       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1528         are both still in chaos following their security messes.
1529    
1530    checkpoint52n_post
1531    o various build (mostly genmake2) changes including:
1532      - ability to build/run more easily within Cygwin and MacOS X
1533      - more complicated Makefiles with a stronger dependence on Gnu Make
1534    o pkg/seaice modifications
1535      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1536        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1537        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1538      - changed proxy for geostrophic velocity and updated
1539        verification/lab_sea/results/* accordingly
1540      - removed ADI dynamic solver from pkg/seaice
1541      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1542        they caused a segmentation fault under certain circumstances
1543      - removed unused field WATR
1544    o bug fix in exf-package:
1545      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1546         now reflect that.
1547    o small fixes in the cal-package:
1548      - set reference date to first of January for the 'model'-calendar
1549      - failing of cal_CheckDate in cal_FullDate now actually results in a
1550        warning
1551    o small modifications in exf-package to increase flexibility:
1552      - change climtempfreeze from a constant to a runtime parameter that
1553        is specified in data.exf_clim (default = -1.9)
1554      - introduce runtime parameter windstressmax (default = 2.0) that is
1555        specified in data.exf
1556    o fix in pkg/thsice:
1557      - update Evap (Tsf changes) to be consistent with Latent heat flux
1558      - maintain snow precipitation unchanged (even if Tsf >=0).
1559     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1560    
1561    checkpoint52m_post
1562    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1563      this does not change any of the results, because myIter=0 in swfrac always
1564      lead to jwtype=2 (the default anyway), but the call makes little sense
1565      as a default
1566    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1567    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1568      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1569    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1570    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1571    o extending useSingleCpuIO option to work with new exch2 I/O format
1572      - old-style, missing-tile I/O is still accessible by defining CPP
1573        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1574    o monitor package can write to NetCDF files and/or STDOUT
1575    o fix re-definition bug in MNC_GRID_INIT_ALL()
1576    o doc/api_reference added
1577      - a framework for building an API Reference Manual using all
1578        the "protex" comments embedded in the code
1579      - see pkg/generic_advdiff, pkg/mnc for examples
1580    o MNC:
1581      - make myThid the last argument for all subroutines
1582      - new default for the grid files: NO halos
1583      - add useMNC and other run-time flags
1584      - separate per-file-group handling of the unlimited dimension
1585      - early initialization of MNC w/ flags read at the eeboot stage
1586        and lookup tables set in initialize_fixed
1587      - write all MNC output to a freshly-created directory
1588    o thermodynamics sea-ice (thsice) is now tested with testreport.
1589    o test exp. advect_cs: use the standard cs32 grid ; update output.
1590    o Added functionality to grdchk:
1591      pick global i,j,k position (or nearest wet) where to perform check.
1592    
1593    checkpoint52l_post
1594    o new land formulation:
1595      a) use ground enthalpy as prognostic variable to ensure exact
1596         energy conservation.
1597      b) account for water temperature and for latent heat of freezing
1598         in all processes (rain, run-off, ground storage)
1599      c) compute surface and ground temperature implicitly.
1600    o aim_v23 modification for new land model:
1601      a) Treat separately land / ocean / sea-ice surface fluxes
1602         to allow implicit computation of land & sea-ice surface temp.
1603      b) add snow precipitation.
1604    checkpoint52l_pre
1605    
1606    o fix problem (when 1 tile is empty) in min/max monitor.
1607    o fix bug in timeAve (u,vZetatave in common block)
1608    o no restoring terms under ice for pkg/seaice
1609    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1610    o bug fix for pkg/seaice pickups
1611    o change MNC call locations and add coordinate attributes
1612    o mask vorticity at the corner ; affects global_ocean.cs output
1613    o fix ini_curvilinear_grid ; test CS experiments with mpi
1614    o aim.5l_cs: modify sea-ice fraction input file ; update output
1615    o exf: Adding simple range check routine for exf fields after read
1616    
1617    checkpoint52k_post
1618    o removed top-level directory "diags"
1619      - we migrated these functions to pkg/timeave a long time ago
1620    o fixed bug introduced in pkg/monitor
1621    o accuracy ctrlprec = 32 insuffient for gradient checks using
1622      averaged fields (I/O via cost_averages)
1623      -> use ctrl.h in active_file*.F to control I/O precision.
1624    o paramter list of CALL ADTHE_MAIN_LOOP
1625    o added initial do_the_model_io to ecco
1626    o set all ...Freq to zero after cost_final
1627      taveFreq, dumpFreq, pChkptFreq
1628    o MAIN and ECCO differentiability restored
1629    
1630    checkpoint52j_post
1631    o fix nchklev in tamc.h for global_ocean...
1632    o Bringing flow and store directives up-to-date
1633    o Really weird thing!
1634      call do_the_model_io from the_main_loop with parameters
1635      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1636      TAF places a faulty re-call of initialise_varia
1637      after cost_final call which should not be there!
1638    checkpoint52j_pre
1639    
1640    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1641      error messages
1642    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1643    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1644      debug output
1645    o modfied mdsio_writefield.F to handle non-global files under exch2
1646    o update AIM Cubed-Sphere exp (aim.5l_cs):
1647      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1648    o update AIM Equatorial Channel exp:
1649      use standard aim_v23 pkg and change the SST fields to be more realistic.
1650    o globalFile now works with exch2
1651    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1652      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1653    o limit timeave output for hi-res integrations
1654    
1655    checkpoint52i_post
1656    o removed CPP_EEOPTIONS.h from verification/*/code
1657    o updated the tiling for global_ocean_pressure
1658    checkpoint52i_pre
1659    
1660    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1661      the old pkg/aim).
1662    
1663    checkpoint52h_pre
1664    o shortened offending lines in exch2_send_rx?.template
1665    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1666    o genmake2: add build & execute test for NetCDF code
1667    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1668      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1669    o added useSingleCPUIO flag to monitor.F and mon_out.F
1670    o added temporary hack for sea-ice dynamics on the cube:
1671      metric terms are ignored and it is assumed that
1672      there is no sea-ice on cube faces 1, 2, 4, and 5.
1673    
1674    checkpoint52f_post
1675    o added exch2 cube routines to pkg/exch2
1676    o modified hs94.cs-32x32x5 to use it
1677    o added new grid files to hs94.cs-32x32x5
1678    checkpoint52f_pre
1679    
1680    checkpoint52e_post
1681    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1682      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1683    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1684      to work with implicit vertical advection and AB ;
1685    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1686    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1687     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1688    checkpoint52e_pre
1689    
1690    o fix bug in impldiff when Nr=1 or Nr=2.
1691    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1692    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1693    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1694      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1695    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1696    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1697    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1698    
1699    checkpoint52d_post
1700    o re-tiled many expts to allow comparison in multi-processor mode
1701      - updated output accordingly
1702      - changed hs94.128x64x5 to use intial T from file rather than use the
1703        random number generator
1704    o add infrastructure in model routines for fizhi and gridalt packages
1705    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1706    o changes to permit hi-res, cubed-sphere, configuration
1707      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1708      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1709      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1710        of surface winds for the cube
1711      (A verification experiment, based on global_ocean.cs32x15, but with
1712       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1713       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1714       complete with example surface forcing files and matlab scripts to look
1715       at the output and compare it with that of global_ocean.cs32x15.)
1716    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1717       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1718       to conform to the common rule.
1719    o check-in the first version of the coupler + interfaces for multi-components
1720       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1721       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1722       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1723       - ocean and atmos. share the same horizontal grid (no interpolation).
1724       - exchanges between component and coupler is done in forward_step
1725    o new verification experiment, cpl_aim+ocn:
1726       coupled ocean - AIM atmosphere on cs32 grid.
1727    
1728    checkpoint52d_pre
1729    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1730    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1731    
1732    checkpoint52c_post
1733    o Fixing OPTIONS files for use of exf:
1734      - ALLOW_ECCO not needed
1735      - ECCO_CPPOPTIONS.h should not be included from
1736        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1737        as has been the case in the past
1738      - All cal/exf related options are currently set in
1739        single header file. Should remain so until we
1740        agree on a consistent new policy.
1741    o Removed all CPP options for cal package.
1742      cal has no more CPP options.
1743    o modified STOREs in GAD_ADVECTION
1744    o corrected key comp. for passkey
1745    
1746    checkpoint52b_post
1747    o new version: "thsice" of thermodynamic sea-ice pkg:
1748     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1749     - modify fluxes but do not change theta directly;
1750     - light cleaning of bulk_force pkg (still needed with thsice).
1751     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1752       + output_thsice.txt to test thsice & bulk_force pkgs.
1753    o put back grid & coriolis monitor output.
1754    checkpoint52b_pre
1755    
1756    o call "do_the_model_io" at the beginning (=> dump initial state)
1757    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1758    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1759      (need info on NUMBER_OF_PTRACERS)
1760    o missing PTRACERS headers in some routines
1761    o default tamc.h in pkg/autodiff supposed to crash
1762      to ensure proper customization
1763    
1764    checkpoint52a_post
1765    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1766      - moved surfaceTendencyTice from pkg/seaice to main code
1767      - subroutine FREEZE_SURFACE now limits only surface temperature
1768        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1769        => new output.txt for global_ocean.cs32x15 & global_with_exf
1770      - keep the old version of FREEZE for backward compatibility;
1771        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1772      - corresponding modifs for TAF directives
1773    o added surface flux output variables to TIMEAVE_STATVARS
1774    o time-averaged output for pkg/ptracers
1775    o fix problem with ECCO-related divided adjoint
1776      snapshot file was missing some ad-variables,
1777      but no warning issued by TAF
1778    
1779    checkpoint52a_pre
1780    o some bug fixes for #undef REAL4_IS_SLOW
1781    
1782    checkpoint52 = ecco_c52_e35
1783    o after testing adjoints of checkpoint51u_post
1784    
1785    checkpoint51u_post
1786    o this is the post-merge tag of the ecco-branch
1787      (needs another clean checkout and re-testing)
1788    o various natl_box_adjoint configs and results
1789      but no input fields
1790    o obcs adjoint not yet merged!
1791    o adding ECCO global 1x1 and 2x2 degree configs
1792    o updated/extended some store directives for seaice
1793    o pkg/ecco now containes ecco-specific part of cost function
1794    o top level routines the_main_loop, forward_step
1795      supersede those in model/src/
1796      previous input data.cost now in data.ecco
1797      (new namelist ecco_cost_nml)
1798    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1799    
1800    checkpoint51t_post
1801    o this is the pre-merge tag of the ecco-branch
1802    
1803    checkpoint51s_post
1804    o cleanup: removed various obsolete #define-s
1805    o pkg/grdchk
1806      - renamed 'ph-grd 3' to 'grad-res'
1807      - merged from ecco-branch
1808        (remaining bug fixes for obcs gradient checks)
1809      - additional high-precision output for testreport
1810        (grep for 'precision_grdchk_result')
1811    
1812    checkpoint51r_post
1813    o cleaned up or removed CPP_OPTIONS.h files
1814    o updated results for some of the tests to reflect the new
1815      optfiles (-ieee: -O0 instead of -O3)
1816    
1817    checkpoint51q_post
1818    o cd_code:
1819      - moved cd_scheme.F -> cd_code_scheme.F
1820      - separate read_checkpoint from cd_code_ini_vars.F
1821      - separated cd_code part from write_checkpoint
1822      - updated AD_SOURCE, generated .flow
1823      - added CD_CODE_VARS.h to the_main_loop
1824      - Moving cd_code specific store dir.s to pkg/cd_code
1825    o ctrl package totally restructured
1826      - pack/unpack now optional and decoupled from
1827        xx_/adxx_ I/O
1828      - ctrl_pack/unpack cleaned
1829        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1830      - confined inclusion of AD_CONFIG.h to where necessary.
1831    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1832    
1833    checkpoint51p_post
1834    o create initial cd_code package
1835      - WARNING: the initialization of fields within packages
1836        is broken because INI_FIELDS (where READ_CHECKPOINT is
1837        called) is called *before* PACKAGES_INIT_VARIABLES.
1838        This seems to be backwards since
1839        1) its important to initially zero the entire field including
1840           the "halo" region
1841        2) zeroing needs to be done *before* reading pickup info
1842           and the pickup call might or might not happen in any
1843           particular run
1844      - this needs an overhaul for R2
1845    o cleanup verification/*/code/GMREDI_OPTIONS.h
1846    o cleanup testreport
1847    
1848    checkpoint51o_post
1849    o bringing AD-related verif's up to date with genmake2
1850      - carbon/
1851      - global_ocean.90x40x15/
1852      - hs.94.1x64x5/
1853      - (front_relax/ )
1854    o (more) consistent directory structure for AD-related verif.'s
1855    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1856    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1857    o bug fix in find_alpha.F for MDJWF:
1858      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1859        change rho -> rho-rhoConst
1860      - replace call find_rho to find_rhonum
1861    o initialisation of rFlx extended to full array (required by TAF)
1862      and shifted to thermodynamics
1863    o removed PTRACERS.h in ptracers routine
1864    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1865    o Correcting initialisations for fVerU, fVerV.
1866    o helping TAF to recognize dependency on kUp for
1867      fVerU, fVerV
1868    o Replacing delZ by delR in pkg/ctrl/
1869    checkpoint51o_pre
1870    
1871    o undid all of cp51 pending some cleanups and discussion
1872    o added the [#include "AD_CONFIG.h"] statement to all files that need
1873       it for adjoint/tl #defines
1874     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1875     o removed tools/genmake since it no longer works
1876    
1877    checkpoint51n_post
1878    o modifications to make FREEZE flux visible to pkg/kpp
1879      - moved surfaceTendencyTice from pkg/seaice to main code
1880      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1881      - subroutine FREEZE now limits only surface temperature
1882        (this means new output.txt for global_ocean.90x40x15,
1883         global_ocean.cs32x15, and global_with_exf)
1884    o added surface flux output variables to TIMEAVE_STATVARS
1885    
1886    checkpoint51n_pre
1887    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1888    o added [#include "AD_CONFIG.h"] to all files that use the following
1889      defines:
1890      - ALLOW_ADJOINT_RUN
1891      - ALLOW_TANGENTLINEAR_RUN
1892      - ALLOW_ECCO_OPTIMIZATION
1893    
1894    checkpoint51m_post
1895    o incorporating changes to get TAMC/TAF working in genmake2
1896      - added new TAMC/TAF targets to the Makefile
1897      - various cleanups related to package handling
1898      - these changes should have no impact on the forward model
1899    
1900    checkpoint51l_post
1901    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1902     - faster algorithm for cal_addtime.F
1903     - higher precision arithmetic, where needed
1904     - pkg/exf *startdate variables changed from calendar date to
1905       model integration time
1906    
1907    checkpoint51l_pre
1908    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1909    o enable to apply restoring on S & T only in a latitude band.
1910    o update output (external_forcing_surf modif. change truncation errors)
1911       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1912    
1913    checkpoint51k_post
1914    o change default to: useNHMTerms=.FALSE.
1915     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1916       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1917     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1918        exp1, ideal_2D_oce
1919     - change data file of oceanic exp (leave the results unchanged for now)
1920       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1921    o set gravitySign automatically according to the vertical coordinate used
1922      (and change sign: back to "logical" value: +1 when R increases downward)
1923    o added an include barrier to the default CPP_OPTIONS.h and
1924      removed the #include "PACKAGES_CONFIG.h" from it
1925    o fix a bug in mom_fluxform (from chk51j_post)
1926    
1927    checkpoint51j_post
1928    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1929    o adjusted some flow directives (dynamics, thermodynamics)
1930    o added cubed-sphere case to test cost function
1931    o heckpoint_lev?_directives.h now include
1932      pkg-specific directives, whenever those are enabled.
1933    o Moving pkg-specific flow directives to corresponding pkg
1934      Moving pkg-specific differentiation list to corresponding pkg
1935      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1936      ---> conventions are
1937           - pkg_ad.flow
1938           - pkg_ad_diff.list
1939           - pkg_ad_check_lev?_dir.h
1940    
1941    checkpoint51i_post
1942    o merge of the branch-genmake2
1943      - knowingly breaks the older genmake
1944      - automatic generation of all ALLOW_${PKG_NAME} defines
1945      - new testreport supersedes older testscript
1946    o large number of package inclusion and header cleanups
1947    checkpoint51i_pre
1948    
1949    o new output for adjoin of global ocean vector invariant
1950    o fix for checkpoint of thermodynamic seaice and bulk_force
1951    o Steph gchem various cleanups
1952    
1953    checkpoint 51h_pre
1954    o fixed some single quotes
1955    o modify gchem pkg to be more versatile
1956    o modifications to clean up dic pkg
1957    o add pkg/cfc
1958    
1959    checkpoint51g_post
1960    o provide links for ARPACK and ADM*TLM
1961    o start removing verification/vero/
1962    o update AD-related stuff
1963      (in particular some IF-statements in model/src/ routines)
1964    o adding to verification/global_ocean.90x40x15/ adjoint of
1965      vector invariant setup
1966    
1967    checkpoint51f_post
1968    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1969    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1970      of tracer Green's fucntions for ocean inversion project.
1971    
1972    checkpoint51f_pre
1973    o Added on-the-fly spatial interpolation capability
1974        "USE_EXF_INTERPOLATION" to pkg/exf.
1975      - This is a temporary Cartesian-grid hack until
1976        the super-duper ESMF coupler becomes available.
1977      - See verification/global_with_exf/README for usage example.
1978      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1979        flags and modified pkg/seaice accordingly.
1980    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1981        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1982        non-local transport term.
1983    
1984    checkpoint51e_post
1985    o pkg/mom_vecinv:
1986      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1987      - add time-ave diagnostic of vorticity advection.
1988    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1989    o atmospheric geopotential: - include water vapor effect;
1990                                - use p^kappa in p* scaling.
1991    o land pkg: read initial state from files.
1992    o AIM : add stratospheric drag in the upper level
1993    
1994    checkpoint51d_post
1995    o change function ILNBLNK (=> last non-blank char.) to return zero
1996      (instead of the string length) when the string. char is empty
1997    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1998    o modif's to restore TAMC compatibility
1999      - avoid "_d" constructs in PARAMETER declarations
2000      - avoid interrupting lines by comment lines
2001    o Use cluster local disks for purely local I/O
2002      vs. globally visible disks needed for ctrl stuff
2003      (merged from ecco-branch)
2004      - new active_file_loc... and mdsio_..._loc routines
2005      - affected packages: autodiff, ctrl, grdchk, mdsio
2006    
2007    checkpoint51c_post
2008    o introducing integer flag debugLevel
2009      - debLevZero: suppress all output
2010      - debLevA: standard
2011      - debLevB: equivalent to current debugMode=.TRUE.
2012    o introducing pathname variable mdsioLocalDir for mdsio
2013      that can be specified at runtime
2014      (relevant for cluster I/O to local disk)
2015    `
2016    >>>checkpoint51b_post
2017    adjoint of ptracers
2018    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2019    o extended state in checkpoint_lev?, etc.
2020    o alternative ctrl/cost with tr1 or ptracer
2021    o new comlev1_bibj_ptracers
2022    o new ptracers.flow
2023    o made ptracers_forcing same as external_forcing_s
2024    o added verification for adjoint with ptracers
2025      - adm. grdchk fail so far
2026      - tlm. grdchk OK
2027      - checked tapelev/comlev recomputations: OK
2028    <<<checkpoint51b_pre
2029    
2030    checkpoint51a_post
2031    o added code for biogeochemistry package
2032      - new pkgs: dic, gchem
2033      - new subroutine in ptracers
2034    o modify code for biogeo packages
2035      - in model/src and pkg/ptracers
2036    
2037    checkpoint51
2038    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2039      - autodiff, ctrl, exf, grdchk, seaice
2040      kept separate packages
2041      - cost, ecco, obcs
2042    o updating verification/internal_wave, verification/lab_sea
2043      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2044    
2045    checkpoint50i_post
2046    o Preparing next differentiable checkpoint and sync
2047      of MAIN vs. ecco-branch
2048      - 1st step: this one is differentiable
2049      - 2nd step: next(! not this) checkpoint will have updated packages
2050                  from ecco-branch)
2051    
2052    checkpoint50h_post
2053    o new package "land": provide surface BC for AIM.
2054    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2055    o AIM: use true log-P extrapolation for near surface temp (= as in
2056        F.Molteni paper) ; update aim.5l_cs output.
2057    o New variable in PARM03 for more flexible pickups
2058    o somewhat cleaned package initialisation sequence for
2059      ctrl/ cost/ ecco/ in packages_... routines
2060    
2061    checkpoint50g_post
2062    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2063      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2064      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2065        made the default because of faster convergence than ADI
2066    
2067    checkpoint50f_post
2068    o exf totally restructured
2069      - replaced all exf_set_ routines by one generic exf_set_gen.F
2070        and made sure it's still differentiable
2071      - split exf_getffields.F into new exf_bulkformulae.F
2072      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2073      - updated adjoint/makefile and relevant verif. accordingly
2074    
2075    checkpoint50f_pre
2076     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2077          + change Evap over land. (update aim.5l_cs output)
2078     o added missing .cvsignores and made uniform across expts
2079     o changed configuration of tidal_basin_2d expt
2080     o added pkg/debug functions for tracing code in fatal crashes
2081     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2082     o new fn in pkg/monitor to stop model if solution grows too big
2083     o removed lots of single quotes from comments
2084    
2085    checkpoint50e_post
2086    o make KPP work with PTRACERS
2087     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2088       nearly a copy of kpp_transport_s
2089     - there is no analogue to SurfaceTendencyS, so I have to use
2090       gPtr(of the surface layer) instead
2091    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2092    checkpoint50e_pre
2093    
2094    checkpoint50d_post
2095    o change kpp output from multiple-record state files to single-record state
2096      files analogous to write_state.F
2097    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2098      analogous to the cg2d-related output.
2099    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2100      so that writing to internal file fn (with length 512) fails.
2101    checkpoint50d_pre
2102    
2103    checkpoint50c_post
2104    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2105    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2106    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2107    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2108    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2109    
2110    checkpoint50c_pre
2111    Merging from release1_p13:
2112    o bug fix for pkg/seaice dynamic solver
2113    o Added SEAICE_initialHEFF to pkg/seaice
2114    
2115    checkpoint50b_post
2116    o store u*,v* in gU,V instead of in guNm1,gvNm1
2117    o in order to put the momForcing out of the Adams-Bashforth:
2118      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2119      to timestep.F
2120    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2121    o re-generate output for highly sensitive test-exp:
2122       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2123    
2124    checkpoint50b_pre
2125    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2126    o corrected CPP option mismatch in exf_Bulk... functions for case
2127      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2128    
2129    checkpoint50a_post
2130    o Bug fix for merging between c50 and KPP.
2131      ikey was passed from thermodynamics to kpp_calc via
2132      common block rather than being recomputed in kpp_calc,
2133      in contradiction with new key itdkey.
2134      New key ikppkey created, and tamc.h headers updated.
2135    
2136    checkpoint50
2137    - 2nd step of merge with ecco-branch:
2138      merge changes in ecco-branch back into main trunk
2139    - bug fix in find_alpha
2140    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2141    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2142    - merged some sliced AD support routines
2143    
2144    checkpoint49
2145    merged from ecco-branch:
2146    o exf:
2147      - Enable initialisation of forcing fields to constant
2148        (runtime) values.
2149      - in exf_getffields.F
2150        Reduce i-/j-loop to interior domain, discarding overlaps.
2151        That also fixes wrong TAF-key computations for key_1, key_2
2152        with bulf formulae.
2153      - exf_init.F modify #ifdef for exf_init_evap
2154      - exf_getffieldrec.F, ctrl_getrec.F
2155        The following INT-usages are not safe:
2156          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2157          fldcount = int(fldsecs/fldperiod) + 1
2158        and were modified.
2159    o autodiff: checkpoint_lev...
2160      - updated storing for bulk formulae (some arrays were missing)
2161      - added state for seaice package
2162      - synchronized with main branch
2163    o DIVA:
2164      Modif.s in
2165      - the_main_loop.F
2166      - the_model_main.F
2167      and added cost_final_restore.F cost_final_store.F
2168      o With these changes, it is possible to fully separate
2169        the first forward run to compute the cost function (mdthe_main_loop)
2170        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2171        into separate model executions.
2172        This enables better tuning of DIVA to given queue sizes.
2173      o Loss of cost function value in consecutive DIVA runs is
2174        fixed by storing to 'costfinal' file.
2175      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2176        beginning/end of adjoint integration is accounted for.
2177      The current changes apply to TAF-1.4.26.
2178      TAF has one remaining bug, requiring one manual change
2179      (see MITgcm manual).
2180    o cal: synchronized between MAIN and ecco-branch
2181    
2182    checkpoint48i_post
2183    o Changes to restore differentiability of code w.r.t. previous tag
2184      (mostly adding new routines to make list and replacing
2185      pressure by totPhiHyd).
2186    o Updated and merged grdchk package
2187      - has both ADM and TLM checks
2188      - works for single- and multi-proc.
2189      - output cleaned
2190      - worked successfully for parallel DIVA
2191    o genmake:
2192      - Adding -platform=SP4
2193      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2194    o Modif. for DIVA:
2195      ctrl_unpack should not be called in intermediate DIVA interval.
2196      (similar thing would apply for active files such as
2197      tbar, sbar, psbar, which should not be reinitialised;
2198      only relevant for ecco-branch)
2199    
2200    checkpoint48h_post
2201    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2202    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2203    o Added SEAICE_initialHEFF to pkg/seaice
2204    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2205    
2206    checkpoint48g_post
2207    --- EOS:
2208    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2209      store total Potential in totPhyHyd for diagnostics & EOS.
2210    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2211    --- Pressure/geopotential gradient:
2212    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2213    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2214      ( changes results of global_ocean_pressure )
2215    o NLFS + z-coord.: add eta*Rho' contribution.
2216    o accurate phiHyd when using interface-W at the middle between 2 centers
2217     ( changes results of ideal_2D_oce )
2218    o includes r* 2nd term in potential gradient.
2219    
2220    checkpoint48f_post
2221    Merging from release1_p12:
2222    o Modifications for using pkg/exf with pkg/seaice
2223      - improved description of the various forcing configurations
2224      - added basic radiation bulk formulae to pkg/exf
2225      - units/sign fix for evap computation in exf_getffields.F
2226      - updated verification/global_with_exf/results/output.txt
2227    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2228      (SBO) core products, including oceanic mass, center-of-mass,
2229      angular, and bottom pressure (see pkg/sbo/README.sbo).
2230    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2231      to avoid negative values in shallow regions.
2232      - updated verification/natl_box/results/output.txt
2233      - updated verification/lab_sea/results/output.txt
2234    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2235    o Added useSingleCpuIO option (see PARAMS.h).
2236    o Updated useSingleCpuIO option in mdsio_writefield.F to
2237      work with multi-field files, e.g., for single-file pickup.
2238    o pkg/seaice:
2239      - bug fix in growth.F: QNET for no shortwave case
2240      - added HeffFile for specifying initial sea-ice thickness
2241      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2242    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2243      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2244    o pkg/seaice:
2245      - adjoint-friendly modifications
2246      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2247    
2248    checkpoint48e_post
2249    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2250    o dynamics: change definition of computational domain & adapt mom_fluxform
2251      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2252    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2253        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2254        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2255        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2256        inverted_barometer solid-body.cs-32x32x1
2257      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2258    
2259    checkpoint48d_post
2260    o in preparation for r*:
2261     a) use pre-computed gradient of hydrostatic potential:
2262        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2263     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2264        => affects results of glob_oce_pressure (different truncation error)  
2265      update output.txt of ideal_2D_oce & global_ocean_pressure
2266    
2267    checkpoint48d_pre
2268    o in preparation for r*:
2269      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2270      pass the 2 comp. of the grad. as arguments to momentum S/R.
2271      but for the moment, only used if it does not change the results.
2272    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2273    
2274    checkpoint48c_post
2275    Modifications in treatment of initial flux forcing controls
2276    to avoid extra storing of flux fields.
2277    
2278    checkpoint48c_pre
2279    o Added tidal_basin_2d experiment (currently 1D!)
2280    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2281    
2282    checkpoint48b_post
2283    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2284     (modification to pressure gradient not yet implemented)
2285    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2286      (for U & V) that are used for vertical advection of momentum.
2287    
2288    checkpoint48a_post
2289    o In preparation for r*, use temp. array to compute vertical transport
2290       in flux-form momentum pkg. => change results of few test-exp.
2291      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2292                        lab_sea, natl_box & plume_on_slope
2293    
2294    checkpoint48
2295    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2296    
2297    checkpoint47j_post
2298    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2299    o moved adexch from forward_step to addummy_in_stepping
2300    o added exch in ctrl_map_...
2301    o aveFreq.=0. at end of cost_final to avoid overwrite in
2302      reverse checkpointing loop
2303    o Yet more changes in gmredi:
2304      * adgmredi_calc_tensor
2305        avoiding all recomputation of gmredi_slope_limit
2306      * adgmredi_x/y/rtransport
2307        added flag for excessive storing to avoid recomp. of
2308        u/v/rtans, dTdx/y/z
2309        -> this is not really necessary and very memory-consuming
2310      * adgmredi_slope_psi:
2311        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2312      * gmredi_slope_limit
2313        re-activated full calculation of taperfct for case 'ac02'
2314    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2315    
2316    checkpoint47i_post
2317    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2318    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2319      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2320    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2321    o gmredi: fix few bugs.
2322    
2323    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2324    This will be a good checkpoint to plug into the ecco-branch.
2325    o few modif.'s to get latest version adjointed
2326      (mainly kick out code in ini_linear_phisurf)
2327    o modif's to run adjoint with exactConserv
2328    o case GM_BOLUS_ADVEC should be cleaned
2329      S/R gmredi_slope_psi should be cleaned
2330    o verification/carbon now has exactConserv=.TRUE.
2331    
2332    checkpoint47g_post
2333    o time-average AIM output: becomes independent from statvars time-average
2334      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2335    o After TAF bug fix:
2336      Tested adjoint of gmredi package.
2337      Tests were done with checkpoint47 rather than with latest
2338      checkpoint47f_post since the latter is broken for the adjoint
2339      verification/carbon/ contains both ADM and TLM gradient checks.
2340    Here they are, before they get changed/lost/stolen.
2341    Mostly modif.'s to fix numerical sensitivities.
2342    Gradient checks OK for
2343    - GM_taper_scheme:
2344      * clipping
2345      * ac02
2346      * linear
2347      * glw91
2348      * dm95
2349      * ldd97
2350    - GMREDI_OPTIONS:
2351      * GM_VISBECK_VARIABLE_K
2352      * GM_NON_UNITY_DIAGONAL
2353      * GM_EXTRA_DIAGONAL
2354      * GM_BOLUS_ADVEC
2355    in conjunction with data.gmredi parameters to be checked in
2356    in a few minutes under verification/carbon/code/
2357    
2358    checkpoint47f_post
2359    Merging from release1_p10:
2360    o modifications for using pkg/exf with pkg/seaice
2361      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2362        and SEAICE_EXTERNAL_FLUXES
2363      - pkg/exf CPP options EXF_READ_EVAP and
2364        EXF_NO_BULK_COMPUTATIONS
2365      - usage examples are Experiments 8 and 9 in
2366        verification/lab_sea/README
2367      - verification/lab_sea default experiment now uses
2368        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2369    
2370    checkpoint47e_post
2371    o created a tag prior to creating a branch
2372    
2373    checkpoint47d_post
2374    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2375      at the bottom boundary had an erroneous half slip boundary condition
2376    o added bottom drag and no slip boundary condition capabilities to
2377      oceanic pressure coordinates code
2378    o added new verification experiment global_ocean_pressure, this experiment is
2379      also described in the tutorial section of the manual
2380    checkpoint47d_pre
2381    
2382    checkpoint47c_post
2383    o Added a verification experiment for a global cubed-sphere ocean run
2384      -  verification/global_ocean.cubed32x32x30
2385      -  uses pkg/therm_seaice and pkg/bulk_forcing
2386    
2387    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2388    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2389      when using P-coordinate; only implemented for atmospheric config.
2390    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2391      NOTES: requires option NONLIN_FRSURF to be "#define".
2392    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2393    
2394    checkpoint47b_post
2395    Merging from release1_p9:
2396    o pkg/seaice
2397      - removed GOTO's and added taf directives
2398      - double precision constants to reduce the g77 (Linux)
2399        to F77 (SGI) differences reported in release1_p8
2400    o tools/genmake
2401      - added SGI options
2402    o verification/testscript
2403      - updated to that of checkpoint47a_post
2404    o verification/global_ocean.90x40x15/input/eedata
2405      - modified for SGI f77 compatibility
2406    o verification/lab_sea
2407      - added description of sea-ice model
2408      - added missing matlab routines
2409      - added test of thermodynamics parallelization
2410    
2411    checkpoint47a_post
2412    o new pkg: aim_v23
2413     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2414       for now, keep the same surface forcing as before.
2415     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2416     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2417     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2418    o add diagnostic of surface correction term in monitor output
2419    
2420    o bulk_force and therm_seaice
2421    - Two packages:  bulk_force (Bulk forcing)
2422      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2423    - Earlier integration from Stephaine Dutkiewicz
2424      and Patrick Heimbach.
2425    - Two ifdef statements for compile time,
2426       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2427    
2428    checkpoint47
2429    differentiable version of checkpoint46n_post
2430    o bug fix in quasihydrostaticterms
2431    o * "clean" adjoint code (in terms of extensive recomputations)
2432        can now be obtained for all GMREDI options (i.e. for
2433        - GM_VISBECK_VARIABLE_K
2434        - GM_NON_UNITY_DIAGONAL
2435        - GM_EXTRA_DIAGONAL
2436        - GM_BOLUS_ADVEC )
2437      * However, wrong gradient check problem remains unsolved.
2438      * New CPP options have been introduced for different
2439        tapering schemes
2440    o external_fields_load now part of differentiation list
2441    o pressure needs multiple storing;
2442      would be nice to have store_pressure at beginning or
2443      end of forward_step, e.g. by having phiHyd global (5-dim.)
2444      (NB: pressure is needed for certain cases in find_rho,
2445      which is also invoked through convective_adjustment).
2446    o recomputations in find_rho for cases
2447     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2448    o #define ATMOSPHERIC_LOADING should be differentiable
2449    o ini_forcing shifted to begining of initialise_varia
2450    o Incorporating QNVS line search routines into MITgcm
2451      (this is separate code, and therefore not under pkg)
2452      lsopt/, optim/
2453    o Updated verification/carbon/
2454      - #define GM_VISBECK_VARIABLE_K
2455      - GM_taper_scheme    = 'ldd97'    
2456    
2457    checkpoint46n_post
2458    Merging from release1_p8:
2459    o verification/natl_box:
2460      updating new external_fields_load routine
2461    o New package: pkg/seaice
2462      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2463      The sea-ice code is based on Hibler (1979-1980).
2464      Two sea-ice dynamic solvers, ADI and LSR, are included.
2465      In addition to computing prognostic sea-ice variables and diagnosing
2466      the forcing/external data fields that drive the ocean model,
2467      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2468      The implied surface heat flux is then stored in variable
2469      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2470      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2471      non-local transport term.  Because this call precedes model
2472      thermodynamics, temperature under sea-ice may not be "exactly" at
2473      the freezing point by the time theta is dumped or time-averaged.
2474      N.B.: fairly large differences in accuracy occur across
2475            different platforms/compilers; comparison between
2476            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2477            generated output gives:
2478       T           S           U           V
2479      C D M    c        m  s        m  s        m  s        m  s
2480      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2481      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2482      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2483    
2484      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2485    o GAD:
2486      - generated new common blocks to account for call of
2487        same gad routines with differing traceridentities
2488        (needed to modify tracerIdentity indices in GAD.h)
2489      - generated separate common blocks for case useCubedSphereExchange
2490        (Department of Futurology)
2491      - parameter lists to gmredi_?transport: added tracerIdentity
2492      - added new key indices to tamc.h
2493    o external_fields_load:
2494      - added this routine to TAF list
2495      - needed to make some common blocks global and additional storing
2496        along the same lines as exf package (checkpoint_lev?_directives.h)
2497    o exf:
2498      updated external forcing package
2499      - bug fixes carried over from ecco-branch
2500        (missing OBCS_OPTIONS.h in two routines)
2501      - enable easy to use "no forcing".
2502      - added exf I/O for atmospheric loading
2503      - added exf I/O for runoff data
2504      - transfered scaling between exf <-> MITgcm to exf namelist
2505    o Adding new verification experiment global_with_exf.
2506      This verification experiment is almost identical to the
2507      global_ocean.90x40x15 experiment, except that it uses
2508      the exf (and cal) package instead of the
2509      external_fields_load routine (cf README file).
2510    
2511    checkpoint46m_post
2512    o modified testscript to return -- when there are no lines of "%MON" output
2513    o added new flag "quasiHydrostatic" for QH mode
2514      and new routine quasihydrostaticterms()
2515    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2516      New routine: mom_u_coriolis_nh()
2517    o fixed sign of non-hydrostatic metric terms in u and v equations.
2518      Depend on correct sign of gravitySign.
2519    o added work.pc* to .cvsignore in aim directories using ifc
2520    o introduced flag for controllin non-hydrostatic metric terms
2521    o removed gravitySign from PARM04
2522    o switched to g77/ifc from pgf77 in aim experiments
2523    
2524    checkpoint46l_post
2525    o made convective adjustment work with pressure coordinates:
2526     - changed the direction of k-loop in convective_adjustment.F for the
2527       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2528     - adjusted the reference pressure k-index in convective_adjustment.F
2529     - adjusted the convection condition in convect.F (in analogy to
2530       calc_ivdc.F)
2531     - convective_adjustment no longer computes anything on the halos
2532     - removed the warnings about negative salinity from find_rho.F and
2533       find_alpha.F; instead the new routine look_for_neg_salinity, called
2534       at the beginning of find_rho, find_alpha, and find_beta, does a
2535       check of the entire slice, if CPP-option
2536       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2537    checkpoint46l_pre
2538    
2539    checkpoint46k_post
2540    o fixed the verification/global_ocean.90x40x15 experiment:
2541     - new bathymetry (the world according to A., JMC, and M.)
2542     - new initial fields and forcing fields (*.bin files)
2543     - new POLY3.COEFFS (for the next release one should switch to a full
2544       equation of state: JMD95P or MDJWF)
2545     - fixed several errors and redundancies in the data file
2546     - experiment uses looped cells
2547     - added matlab directory with diagnostic scripts for plotting of output
2548    
2549    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2550     - read AIM physics parameters from a file (data.aimphys)
2551     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2552    
2553    checkpoint46j_post
2554    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2555    o move wVel computation at the end of the time step, in S/R integr_continuity
2556    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2557    o update timeave pkg for wVel diagnostic.
2558    checkpoint46j_pre
2559    
2560    checkpoint46i_post
2561    o Clean up AIM package (and keep the results unchanged):
2562      include CPP_OPTION and use IMPLICT NONE in all routines ;
2563      declare all the variables _RL ; use _d 0 for all numerical constants.
2564      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2565    
2566    checkpoint46h_post
2567    o cleaned up the use of rhoNil and rhoConst.
2568      - rhoNil should only appear in the LINEAR equation of state, everywhere
2569        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2570        and the dynamical equations are all divided by rhoConst
2571    o introduced new parameter rhoConstFresh, a reference density of fresh
2572      water, to remove the fresh water flux's dependence on rhoNil. The default
2573      value is 999.8 kg/m^3
2574    o cleanup up external_forcing.F and external_forcing_surf.F
2575      - can now be used by both OCEANIC and OCEANICP
2576    checkpoint46h_pre
2577    
2578     Added code to convert surface volume flux (fresh water) into
2579     a mass flux when using P coordinates in the ocean (OCEANICP).
2580     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2581    
2582    checkpoint46g_post
2583    o Include a new diagnostic variable phiHydLow for the ocean model
2584      - in z-coordinates, it is the bottom pressure anomaly
2585      - in p-coordinates, it is the sea surface elevation
2586      - in both cases, these variable have global drift, reflecting the mass
2587        drift in z-coordinates and the volume drift in p-coordinates
2588      - included time averaging for phiHydLow, be aware of the drift!
2589    o depth-dependent computation of Bo_surf for pressure coordinates
2590      in the ocean (buoyancyRelation='OCEANICP')
2591      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2592        Theta, Salinity, and Pressure in the parameter list. This routine is
2593        presently contained in find_rho.F. This routine does not give the
2594        correct density for 'POLY3', which would be a z-dependent reference
2595        density.
2596    o cleaned up find_rho
2597      - removed obsolete 'eqn' from the parameter list.
2598    o added two new verification experiments: gop and goz
2599      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2600    checkpoint46g_pre
2601    
2602    checkpoint46f_post
2603    o Enable tangent linear (forward mode) gradient checks:
2604      - extended active file handling to g_... files
2605      - added TANGENT_SIMULATION to theSimulationMode
2606      - extended grdchk package accordingly
2607    o added tangent linear setup in verification/carbon/code_ftl
2608    o added adjoint setup in verification/front_relax/code_ad
2609    
2610    checkpoint46e_post
2611    o Added new equation of state -> MDJWF
2612      - EOS of McDougall et al., 2002, JAOT, submitted
2613      - caveat: the equation of state is only valid for a smaller (more
2614        realistic?) range of values than JMD95P/Z and UNESCO
2615      - added masks to the calculation of pressure in store_pressure
2616      - added more check values for density in check_eos (ini_eos.F), some of
2617        the old check values are out of the range of the MDJWF-eos, so don't
2618        expect perfect matches for those
2619    checkpoint46e_pre
2620    
2621    checkpoint46d_post
2622    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2623      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2624      case of pressure coordinates. eosType='JMD95Z' in
2625      combination with buoyancyRelation='OCEANICP' now causes an error.
2626    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2627      in find_alpha/beta.
2628    checkpoint46d_pre
2629    
2630    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2631      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2632    
2633    checkpoint46c_post
2634    o Changes necessary for ocean in p-coordinates
2635     -  Added new buoyancy relation = 'OCEANICP'
2636     -  Added new parameters = gravitySign (this used to be contained inside
2637        the factor dRdZ which I added when we first switched to R coordinates).
2638     X GM/Redi is not compatible (yet)
2639     X bottom drag and no-slip need to be debugged.
2640    checkpoint46c_pre
2641    
2642    checkpoint46b_post
2643    o Added new equation of state -> JMD95Z and JMD95P
2644      - EOS of Jackett and McDougall, 1995, JAOT
2645      - moved all EOS parameters into EOS.h
2646      - new routines ini_eos.F, store_pressure.F
2647    o Added UNESCO EOS, but not recommended because it requires
2648      in-situ temperature (see JMD95)
2649    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2650      unesco.f to be used with POLY3
2651    checkpoint46b_pre
2652    
2653    checkpoint46a_post
2654    o Added (atmospheric) pressure loading
2655      - new field in FFIELDS.h, etc...
2656      - new cpp flag ATMOSPHERIC_LOADING
2657    o Changed hFacC to _hFacC in calc_phi_hyd.F
2658    o Added SHORTWAVE_HEATING to some files for consistency
2659    checkpoint46a_pre
2660    
2661    checkpoint46
2662    further merges from release1_p5
2663    o new ctrl package
2664      - adopted from ECCO environment to enable optimization
2665      - added Eliassen Palm fluxes to controls
2666    o added Eliassen Palm flux controls to gradient check package
2667    o cost package
2668      - Compatible with new ctrl package
2669      - added Eliassen Palm cost hooks
2670      - modif's of existing cost functions
2671    o Adjoint-related bug fixes in kpp:
2672      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2673      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2674    o autodiff package
2675      - flow directives:
2676        + new for S/R do_the_model_io
2677        + enhanced for S/R checkpoint
2678        + new gmredi.flow
2679      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2680        disable adcommon.h/g_common.h by default.
2681      - fixed problem for adjoint of global_max
2682    o modified verification/carbon/
2683    o New setup for adjoint of global_ocean
2684    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2685    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2686    o incorporated hooks for sponge layer code (external_forcing.F)
2687    
2688    checkpoint45d_post
2689    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2690    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2691      (affects plume_on_slope "cg2d" output)
2692    o add new parameter deltaTfreesurf for free-surface time stepping
2693    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2694    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2695    o change phiMin in exp1 (to agree with documentation)
2696    o add new flags:
2697     - T,S forcing inside/outside Adams-Bashforth
2698     - turn off temp,salt advection and/or forcing
2699     - for each tracer, define internal flag for multiDimAdvection & A-B
2700    o monitor: change definition of KE to check conservation of Energy
2701    
2702    checkpoint45c_post
2703    o Removed f90 comments ("!")
2704    o Modified initialisations to enable exf package for MITgcm
2705      (without invoking ECCO_PACKAGE).
2706    o modifications to gradient check package (Martin Losch)
2707      - enable centered differences
2708      - modified format of standard output
2709    
2710    checkpoint45b_post
2711    o cleaned exchange calls in cg2d
2712    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2713    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2714      to configure barotropic setup (Martin Losch)
2715    o moved some initialisations within bi,bj loop in dynamics
2716      (TAF flow dependency)
2717    o in initialise_varia, moved call packages_init_variables
2718      before convective_adjustment_init
2719      (corresponding adjustment of TAF tape initialisation).
2720    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2721    
2722    checkpoint45a_post
2723    o compute Rho over the whole domain (extend iMin,jMin indices)
2724    o specific exchange for X-slice domain (case Ny=1)
2725    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2726    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2727    
2728    checkpoint44h_post = checkpoint45
2729    o Fix to restore differentiability:
2730      place at which packages_init_variables is called in
2731      initialise_varia is crucial for reverse control flow.
2732    o modifications in GMRedi to enable stable adjoint
2733      (corresponding modif's in thermodynamics, dynamics)
2734    o added missing hook for sponge layer code in external_forcing
2735    o modified test cost functions
2736    o storing in gad_advection (plus removal of write(0,*)!
2737    o missing headers TR1.h added in convective_adjustment routines
2738    o errorMessageUnit set non-equal zero in eeboot
2739      (conflict on some platforms, e.g. IBM SP3)
2740    o modified carbon verif.
2741    
2742    checkpoint44h_pre
2743    o vertical grid option: allow to put the Interface at the middle between
2744      2 cell-centers ; replace delZ in pkg/kpp by drF.
2745    o GM Advective form: Tracers are advected using the residual transport (=
2746      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2747    
2748    checkpoint44g_post
2749    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2750      results) ; ifdef missing in thermodynamics.F
2751    
2752    checkpoint44f_pre,checkpoint44f_post
2753    o added PTRACERS package
2754      This allows an arbitrary number of passive tracers to be integrated
2755      forward simultaneously with the dynamicaly model.
2756      + Implemented so far:
2757        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2758        - I/O and checkpointing
2759        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2760      + Not implemented so far:
2761        - KPP
2762        - OBCS
2763      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2764        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2765        line in data.pkg.
2766      + This package is disabled by default since it increases storage.
2767    
2768    
2769    o testscript: added -cleanup option
2770    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2771                 b) enable to filter 2D fields.
2772    
2773    checkpoint44e_pre,post
2774    o re-wrote convective adjustment to use pre-calculated weights
2775      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2776      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2777      Original calls to convect() still in place.
2778    
2779    chkpt44d_pre,post
2780    o added missing EXCLUDE_MONITOR flags
2781    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2782      (incompatible typ in MIN/MAX expressions caused problems
2783      on IBM SP3)
2784    o in genmake added variable MAKEDEPEND
2785      plus resetting for case SunOS
2786    o added timer_stats.c routine for IBM SP3
2787    o removed variables in dynamics
2788    !!! I forgot to create tag chkpt44d_pre !!!
2789    !!! But chkpt44d_pre = chkpt44c_post    !!!
2790    
2791    o real fresh water flux implemented with non-linear free-surface.
2792    
2793    chkpt44c_pre,post
2794    o few fix (mask in shap_s2, EmPmR in external_field_load,
2795      USE_NATURAL_BCS in solve_for_P);
2796    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2797    
2798    checkpoint44b_pre/_post
2799    o merge of relevant stuff from the ecco-branch:
2800      - genmake: removed $S64 overwrite for case SunOS
2801      - pkg/exf: update and corrections for field swapping and obcs
2802      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2803                  harmonized between ECCO and MITgcm
2804      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2805                      updated checkpointing_lev... lists for obcs
2806      - model/src: minor changes in forward_step, plot_field
2807                   added directive for divided adjoint in the_main_loop
2808      - pkg/mdsio: added mdsio_gl_slice
2809    
2810    o check parameters & config (chkpt44a_pre,post)
2811    o OBC and NonLin_FrSurf.
2812    
2813    checkpoint44
2814    o fix bug in mom_vi_del2uv
2815    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2816    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2817    o update AIM experiments (NCEP input files)
2818    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2819    o added some stuff for AD
2820    
2821    checkpoint43
2822    o added two new advection tests
2823    o added global 4x4 degree ocean test
2824    o added test of H&S94 with free surface on cube
2825    o some final mods for gradient check, adjoint,...
2826    
2827    checkpoint42
2828      Fixed AD-related problems:
2829    o Store directives up-to-date with re-arranged Adams-Bashforth
2830      (mainly thermodynamics.F)
2831    o New store directives for multi-dim. advection schemes
2832      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2833      * new common block and key passkey
2834      (mainly gad_advection.F)
2835    o Modified store directives for split of dynamics/thermodynamics
2836      for the case ALLOW_KPP
2837    o Cleaned argument list for timestep_tracer.F
2838    
2839    checkpoint41
2840    o re-formatted/added comments in prologues of key subroutines
2841      to work with protex
2842    
2843    checkpoint40
2844    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2845    o added FLT (floats) package from Arne along with demo. experiment
2846    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2847      implementation of forward-in-time forcing terms
2848    o more mods for non-linear free-surface including new variable
2849    o modified multi-dim method to work on cube
2850    o bug fix in KPP (from DM)
2851    
2852    checkpoint40pre9
2853    o added DST advection schemes
2854    o fix MPI bug on SGI's
2855    o modifications for non-linear free-surface
2856    o fixed conditionals for fixed flow/passive tracer only mode
2857    o added tension/strain form of stress tensor
2858    o changes to commenting of arguments for TAF/TAMC
2859    o added/updated many matlab scripts
2860    o added multi-dimensional advection method for tracers
2861      
2862    checkpoint40pre8
2863    o new package rw/
2864      Added method for dumping intermediate local arrays:
2865      mdsio_writetile - same as mdsio_writefield except works from inside
2866                        bi,bj loop
2867      mdsio_writelocal - same as mdsio_writetile except works for local
2868                         arrays
2869      write_local_r? - higher-level wrapper for mdsio_writelocal
2870      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2871      Example given at end of mom_vecinv.F that dumps some local arrays.
2872    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2873      control flux-form versus vector invariant code.
2874      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2875      or genmake -DISABLE ...
2876    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2877      (additional storing is now needed for case vecinv;
2878      currently nothing implemented to switch this storing off
2879      in case fluxform is used since no CPP flag available).
2880    
2881    checkpoint40pre7
2882    o bug fix in dynamics.F
2883      calc_viscosity called before k=1,Nr loop.
2884    o added some #ifdef's ALLOW_PASSIVE_TRACER
2885    o cleaned initialisations in ctrl_map_ini
2886      related to TAF
2887    
2888    checkpoint40pre6
2889    o split dynamics into thermodynamics & dynamics
2890    o corresponding split of calc_diffusivity into
2891      calc_diffusivity, calc_viscosity
2892      (kpp_calc_diff, kpp_calc_visc).
2893    o Added diffkr, kapgm to control variables
2894    o bug fix in gmredi_slope_limit for ldd97
2895    
2896  checkpoint40pre5  checkpoint40pre5
2897  o proper initialization of Adams-Bashforth time stepping  o proper initialization of Adams-Bashforth time stepping
2898    + uses forward step for very first step of model (iter=0)    + uses forward step for very first step of model (iter=0)

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