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revision 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.736 by heimbach, Sun Oct 22 01:26:36 2006 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 Adding some pkg/diagnostics capability to pkg/seaice
8      (will certainly be subject to changes)
9    
10    checkpoint58q_post
11    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
12      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
13      high_res_cube configuration by 4% on Columbia.
14    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
15      add (in global_with_exf/code) a version of EXF_INTERP_READ without
16      dynamical allocation (seems to work in multi-threaded).
17    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
18      single CPU io) so that TAF does not have to see EESUPPORT.h
19    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
20    
21    checkpoint58p_post
22    o obcs: stop if obcs is used with useCDscheme = .true.
23    o shelfice:
24     - fix a sign error so that no slip at shelfice interface works
25     - remove stop for combination non-hydrostatic code and shelfice. That does
26       not mean, that the results are correct, but at least they are numerically
27       stable
28    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
29    o added adjoint exch routined for all exch*3d* routines
30      and updated flow directives
31    
32    checkpoint58o_post
33    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
34      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
35    o change controling S/R for writing pickup file (new S/R do_write_pickup)
36      and clean-up reading/writing of pickup files.
37    o fix local version of read/write pickup (NH part) in rotating_tank/code
38    o simplify EXCH interface:
39     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
40     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
41    o added the regrid package
42    o shelfice:
43     - add a simple boundary layer scheme to reduce noise
44     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
45    
46    checkpoint58n_post
47    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
48       local variable (not in common block).
49    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
50      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
51      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
52        to work with SingleCpuIO.
53    o add "_d 0" to real constant of pkg/cfc subroutines ;
54       update exp. cfc_exemple & tutorial_cfc_offline output files.
55    o multi-threading and IO:
56      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
57        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
58      - barrier before and after reading.
59      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
60      - avoid using MDS_WRITELOCAL for LAND pkg output.
61      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
62        common-block variables ; Allows multi-threading with master-thread IO.
63    o change default MAX_NO_THREADS from 32 to 4 ;
64      and stop cleanly when MAX_NO_THREADS is too small.
65    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
66    
67    checkpoint58m_post
68    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
69       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
70    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
71       keep global_ocean.90x40x15 (for AD testing) with former secondary test
72       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
73    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
74        add MITgcm_tutorials (= code + all the tutorials)
75    o ecco, option to compute cost for total ssh (mean+anom)
76    o consistent with addition of ptracer and ssh in pkg/profiles
77    o profiles: adding ptracer and ssh
78    o testreport: change multi-test output-file name
79      (from output.txt.{name} to output.{name}.txt)
80    o profiles: now ok for mutli-tiles case
81    o seaice: add 4 parameters for different advection schemes for area,
82      (effective) seaice thickness, enthalphy, and snow height. Their default
83      is the standard parameter SEAICEadvScheme
84    o calc_gw:
85     - add cosFacU in zonal viscous flux (harmonic.visc.).
86     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
87       of tutorial_plume_on_slope.
88    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
89    o calc_gw: true flux-form, account for horizontal grid spacing.
90      update rotating_tank results, but not plume_on_slope (affected at
91      truncation level, 11 digits).
92    
93    checkpoint58l_post
94    o calc_gw:
95     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
96     - remove side-drag for now (need to fix it); update plume_on_slope results.
97     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
98    o commit code to make SST/SSS weights spatially variable
99      (based on either variable in-situ or variable initial T/S weights)
100    o pkg/ecco:
101      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
102        now based on horizontally varying weights wthetaLev, wsaltLev
103      * cost_averagesflags now returns year indices in addition to day, month
104      * sflux balance is performed on annual basis
105        (sflxumm, sfluxmm2, bal_sfluxmm)
106      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
107        including separate counting and multipliers
108    o pkg/rbcs
109      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
110    
111    checkpoint58k_post
112    o testreport:
113     - always build in dir. "build" (if not there, mkdir build instead of building
114       & running in input)
115     - run in dir run (if it exists), in build otherwise.
116     - call prepare_run (if input/prepare_run exists)
117     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
118    o pkg/exf modifications to interpolation and rotation routines for more
119       reasonable treatment of North Pole singularity: for tracers North Pole
120       value is set to northernmost zonal-mean value, for zonal velocity it is
121       set to zero, and for meridional velocity it is set to northernmost value.
122    o pkg/exf/exf_check_range.F
123     - add tile index to diagnostics and move stop statement to the very
124       end of the routine.
125    o pkg/diagnostics: (diagnostics_main_init.F)
126      define title of isomorphic variables according to the current config.
127    o pkg/thsice with pkg/seaice dynamics:
128    - fix domain of computation (interior only, required for exf) and do exchanges
129    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
130    o towards a standard way of dealing with multi-threading in MONITOR
131      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
132    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
133       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
134    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
135    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
136    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
137       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
138    o tracer advection:
139     - clean-up and simplify calc_common_factors.F
140     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
141       advection subroutine (but still not used within DST advection S/R)
142    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
143    
144    checkpoint58j_post
145    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
146      from file (collects calls previously in FORWARD_STEP)
147    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
148    o adjoint store dir. adjusted accordingly
149    o genmake2
150      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
151    
152    checkpoint58i_post
153    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
154      on wind stress (SEAICEstressFactor defaults to 1.)
155    o Total number of Timers is finite (<=40): comment out 2 non-essential one
156      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
157    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
158      on CS-grid: no longer loosing mass.
159    o exf & curvilinear-grid: no longer modify longitude xC & xG.
160    o pkg/ggl90: fix sloppy output and fix a bug
161    o pkg/seaice: added SEAICEuseEVPpickup parameter
162      - Set to false in order to start EVP solver with
163        non-EVP pickup files when using SEAICEuseEVP
164      - fix sign error in diffusion in seaice_calc_rhs
165    
166    checkpoint58h_post
167    * Modifications for bottom topography control
168      o replace hFacC by _hFacC at various places
169      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
170      o add non-self-adjoint cg2d_nsa
171      o update autodiff support routines
172      o re-initialise hfac after ctrl_depth_ini
173      o works for 5x5 box, doesnt work for global_ocean.90x40x15
174    * Adding verification for 5x5 box (4-layer) bottom topography control
175    
176    checkpoint58g_post
177    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
178       used for mean seasonal cycle, mean diurnal cycle); add an example
179       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
180    o pkg/ggl90:
181      - add parameter (minimum surface kinetic energy)
182      - fix bug (avoiding division by zero)
183    o couple pkg/thsice to pkg/seaice:
184      - modify advection in seaice to accomodate new scalar fields to be advected
185      - only muliDimAdection scheme work with seaice/thsice
186      - mapping of thsice-variables to seaice-variables, back and forth
187      - does not break the verification experiments, but does not give the
188        desired results either
189    o pkg/seaice
190      - make (default) second order advection a bit less confusing?
191    
192    checkpoint58f_post
193    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
194      to pkg/seaice):
195      - new routines thsice_map_exf and thsice_get_exf provide the interface
196      - add an additional formal parameter to thsice_solve4temp
197    o pkg/exf:
198      - add new fields wspeed, snowprecip (to be able to couple to thsice)
199      - correct Stefan-Boltzmann constant
200      - new parameter for longwave surface emittance
201      - separate some stuff from exf_bulkformulae into new routines  
202        exf_radiation, exf_wind
203      - add new parameters and constants: longwave emissivity for ocean, ice
204        and snow, evaporation parameters over ice
205      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
206        either wind from stress or stress from wind
207    o pkg/thSIce:
208    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
209    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
210       and THSICE_CALC_THICKN
211    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
212    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
213      to make debugging easier.
214    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
215    o pkg/bulk_force:
216      - clean-up comments and parameters ;
217      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
218    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
219      generate new output for test-experiment: aim.5l_cs.thSI
220    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
221      testreport accordingly
222    
223    checkpoint58e_post
224    o SEAICE_CGRID adjoint done
225    o R_STAR adjoint implemented.
226      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
227      * need to sort out init. of h0facc, etc.
228    o Make pkg/profile fully independent of ecco,cost, etc. stuff
229      to be able to use it in pure forward.
230    
231    checkpoint58d_post
232    o upgrade simple test-experiment to tutorial example:
233     step.1: duplicate the experiment and (step.2) will remove the old copy.
234      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
235      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
236      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
237      tutorial_global_oce_biogeo    <- copy of dic_example
238      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
239      tutorial_plume_on_slope       <- copy of plume_on_slope
240      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
241      tutorial_global_oce_optim     <- empty for now (David ?)
242      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
243     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
244    o correct a sign problem in cost_scat.F
245    o obcs and ptracers: fix boundary conditions for advections schemes
246      with larger stencil
247    o thsice adjoint: start
248    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
249      completeness
250    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
251      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
252    o ptracers adjoint:
253      * avoid extensive recomputatations
254      * fix missing re-init. of gptr (missed by TAF)
255    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
256      me to turn off the excessive output to STDOUT that this package produces
257    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
258      and add those terms in Vector-Invariant formulation.
259    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
260      if the control period (xx_hfluxperiod etc) is 0
261    o in profiles pkg, clean routines and fix details
262    o in ecco pkg, reading ssh data:
263      fix problem in case the model does not start at iter0=0
264    o fix mnc-pickup/restart for ptracers
265    o new package prifiles:
266      code to compute profile-based cost by Gael Forget
267      (modifs in ecco, ctrl, autodiff)
268    o Benign bug fix in initialization (spotted by M. Mazloff) of
269      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
270    
271    checkpoint58c_post
272    o adjoint: finish NLFS adjoint and provide reference output in
273      verification/global_ocean.90x40x15/results_ad_nlfs
274    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
275      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
276      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
277      with SEAICE_CGRID defined.
278    o move calendarDumps from "data" to "data.cal" and clean-up the code
279      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
280    o add useEXF & useCAL flags (for now, set in hard-coded way)
281    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
282      (were missing in NH mode, and wrong in quasihydrostatic mode).
283      waiting for Chris updated version of calc_gw to add those CALLs.
284    o fix bug in quasihydrostatic S/R ;
285      add a test for this option: global_ocean.90x40x15.qshyd
286    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
287      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
288    o add on/off flag useOffLine for package OFFLINE
289    o seaice:
290      - modify advection so that it works also on the C-grid
291      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
292        problem in multi-tile runs with C-grid
293      - add flags for clipping ice velocities and/or masking solver forcing
294      - fix drag (ocean on ice) formulation and a bug that caused noise in the
295        C-grid solver
296      - added a few comments to seaice_diffusion.F
297      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
298        are now exclusive)
299      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
300        required re-ordering the code a little:
301       + make DAIRN global variable (defined in SEAICE)
302       + move computation of the viscosities eta and zeta into a new separate
303         routine (because I need to recompute them in seaice_ocean_stress.F)
304    
305    checkpoint58b_post
306    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
307      update output.txt of exp. aim.5l_cs.thSI
308    o various mnc cleanups and improvements:
309      + shrink lookup tables by factor of ~4
310      + better error reporting when running out of lookup space
311      + able to handle longer path/file names (up to 500 chars)
312    o adjoint:
313      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
314      - TBD: "hidden" mom_vecinv recomp. in dynamics
315    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
316     (allow to differentiate between forcing components using new integer flags:
317      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
318     and add new flag to put Dissipation tendency out of Adams-Bashforth.
319    o ecco
320      - enable trend removal from SSH anomaly obs.
321    o adjoint
322      - a fix for PmEpR when #undef EXACT_CONSERV
323      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
324      - try to fix "hidden" recomp. in forward_step for NLFS
325        (NLFS seems broken sometimes after I checked it in)
326    o seaice:
327     - add c-grid version of the dynamic solver:
328       + three new routines that are the c-grid substitute lsr, dynsolver
329         and ostres
330       + put a few fields that were local to dynsolver into global common
331         blocks, so that I can move the computation of stresses etc into
332         seaice_lsr (saves coding but may break the adjoint).
333     - replace more hardwired parameters by runtime parameters
334     - add ice masks that mask the rhs of the implicit solvers where there
335       is no ice (commented out in seaice_dynsolver, because i am not sure
336       if this works properly), eventually this should replace the clipping
337       of ice velocities in seaice_dynsolver to +/-40cm/s.
338    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
339      include it only where its needed
340    o move balancing of fluxes before the call of external_forcing_surf
341    o seaice:
342      - correct units of turning angles (now they are really in degrees)
343      - move computation of GWATX/Y out of main routine into dynsolver
344      - initialize GWATX/Y in seaice_init
345    o Apply mask on Fresh-Water flux (needed for SSH forcing).
346      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
347    o seaice: add runtime flags for turning angles (default to zero)
348    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
349      and trend from exf forcing and ctrl control adjustments
350    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
351      (since checkpoint57x_post)
352    o change the default rotation period to 86164.s = the Earth rotation
353    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
354      and based on a reference stratification. Tested within hs94.cs-32x32x5.
355    o seaice advection: add code for choosing between the default (2nd order
356      central differences) and multiDim advection schemes provided by
357      pkg/generic_advdiff
358    o seaice:
359      - removed all references to SEAICE_GRID.h fields from
360        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
361        (cubed-sphere configuration will change a little)
362      - grid computations in seaice_init are obsolete now.
363      - cleaned up code a little so that is easier to read (hopefully).
364      - added new (better?) discretizations of default advection and diffusion
365        (turn on with SEAICEuseFluxForm)
366      - replace 1 in 3d global fields by kSurface in growth.F
367      
368    checkpoint58a_post
369    o seaice:
370      - bug fix in advect.F
371    o shelfice:
372      - separate shelfice load anomaly from pload (breaks with time
373        dependent forcing), => introduce constant field shelficeLoadAnomaly.
374        Its default is 0., but it may be computed more cleverly from (unknown)
375        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
376        done offline. A good approximation of the pressure load anomaly is
377        necessary to avoid large initial adjustment processes underneath
378        deep-reaching shelfice.
379      - small fix in ISOMIP shelfice_thermodynamics
380      - add more sophisticated thermodynamics of Hellmer (1989), this is
381        now the default
382      - give a few constants more intuitive names
383    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
384      if bulk formulae are used in long integration (especially EmPmR). Turn
385      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
386      if balancePrintMean, the imbalance that is substracted is printed to
387      STDOUT.
388    o fix bug (typo) in obcs_apply_eta.F
389    o add a new package shelfice which enables us to model the circulation
390      underneath shelf-ice with draughts of hundreds of meters.
391     - works
392     - to do: + include improved thermodynamics
393              + check whether kSurfC (from model/inc/SURFACE.h) can be used
394                instead of new field kTopC
395              + can we use topoFile, Ro_surf and existing code in ini_depth.F
396                instead of new field R_shelfIce and new code in ini_depth.F
397                and ini_mask_etc.F?
398              + adjust vertical mixing schemes?
399    o seaice pkg:
400     - add a cpp-flag to include a simple formula for a salinity dependent
401       freezing point of sea water at the surface
402     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
403       meridional stresses are now different (and hopefully correct)
404    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
405       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
406       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
407    o pkg/diagnostics: add options and parameters for regional-statistics
408       diagnostics ; define regions by reading a region-mask from a file
409       (might add other options later)
410    o pkg/bulk_force:
411     - add option and parameters to use AIM surface-flux formulae.
412     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
413       others forcing fields (defined in PARM05, parameter file "data") are loaded
414       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
415     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
416     - use the right EXCH call for uwind,vwind (to work on CS-grid).
417     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
418       and parameters (note: calcWindStress replaces .NOT.readwindstress).
419     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
420    
421    checkpoint58
422    o add "--embed-source" option to genmake2 which, when the supporting
423      tools can be compiled (as determined by genmake2) will turn on the
424      embed_files package which then embeds the entire MITgcm source code
425      (*.[fFhc] + Makefile) used for the build within the executable
426      - requested by CNH but off by default
427      - adds a paltry <9MB to the mitgcmuv executable in most cases
428      - only writes the output when useEMBEDSRC in eedata is true
429    o clean up 3-dim. relaxation codes:
430      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
431      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
432      * Thanks to Tom Haine for testing!
433    
434    checkpoint57z_post
435    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
436      affects output (@ truncation level) of exp. plume_on_slope ; updated.
437    o fix the pickup behavior for obcs in combination with ptracers
438    o fix a bug in ptracers_external_fields_load
439    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
440      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
441    o transfered surface NH pressure to eta field (if exactConserv).
442    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
443         and update lab_sea output.txt file.
444    o completing 3-dim. relaxation code: additional term
445         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
446      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
447      * At compile time, in "EXF_OPTIONS.h" set
448          #define  ALLOW_CLIMTEMP_RELAXATION
449          #define  ALLOW_CLIMSALT_RELAXATION
450      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
451          tauThetaClimRelax3Dim = 15552000.0,
452          tauSaltClimRelax3Dim  = 15552000.0,
453      * 3 cases:
454          1) Use a constant-in-time 3-dim. field
455          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
456          3) Real-time relax. to time-evolving prescribed field
457    o Adding Laplacian-type smoothness constraint on
458      initial and boundary (forcing) controls (ic, bc)
459      * enable at compile-time via
460        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
461      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
462      * Absolute scale somewhat unclear so far
463      * no area weighting was included since no other cost term does so far
464    
465    checkpoint57y_post
466    First step for a NLFS adjoint
467    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
468    o new init. routines for calc_r_star, calc_surf_dr
469    o still need to deal with ini_masks_etc
470    o testreport seemed happy
471    checkpoint57y_pre
472    
473    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
474    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
475    o add new offset feature to offline pkg (plus minor cleanup)
476    o cfc fixes for final year of integration
477    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
478      be in GCHEM_OPTIONS).
479    
480    checkpoint57x_post
481    o fix testreport Pb in multiple test experiment.
482    o cleanup our namelist syntax in verification:
483      - make it more F95 standards compliant (some work still needed)
484      - allows the vast majority of our tests to work with gfortran
485    o Non-Hydrostatic:
486     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
487     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
488    o Allow to apply AB on T,S rather than on AB(gT,gS):
489     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
490     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
491       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
492     - need a "clever" read_pickup to restart from the other AB formulation
493    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
494    o remove some unused variables (reduces number of compiler warnings)
495    o adjoint
496      * Disable useVariableViscosity for adjoint for time being
497        (there are a number of extensive recomputations)
498      * Initialize certain variables needed for adjoint
499    
500    checkpoint57w_post
501    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
502                 fix the singleCpuIO RS version of MDSWRITEFIELD
503       and add a WARNING if using globalFiles=T with multi-processors.
504    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
505      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
506    o tracer advection scheme:
507      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
508       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
509       was not very convenient).
510      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
511       (further tests needed for the implicit DST & Flux-Limiter schemes).
512    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
513      and sRef for convenience, handy, when you want to initialize
514      ptracers in a large domain with a constant non-zero value. Also,
515      untangle ptracers_init.F a little.
516    
517    checkpoint57v_post
518    o change dome exp. to use variable viscosity in side-drag terms.
519    o remove all the files from the cfc_offline test since they are now
520      incorporated into tutorial_cfc_offline which has been producing
521      identical results for a few days of testing
522    o add new parameter: sideDragFactor to enable half-slip-side BC
523      and change side-drag S/R to use viscosity from mom_calc_visc
524      (can switch back by setting sideDragFactor=0.); affects results at
525      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
526       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
527    o vorticity & strain are now computed without masking, to account for
528      no-slip-side BC in variable viscosity calculation ; mask is applied
529      anyway later on, before computing advection/coriolis terms.
530    o modify exp4 to test new obcs support for reading from external files
531      and for passive tracers
532    o fix behavior of ptracers_monitor when monitor output is written to a
533      netcdf-file; still not independent of monitor.F (writes in the same
534      file).
535    o change default value of tRef (put a uniform, meaningful value for ocean
536      & atmos) and initialize sRef (was missing, as Martin mentioned).
537    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
538      to be proportional to enstrophy dissipation length.  Thus,
539       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
540      This is now consistent with Smagorinsky and with the manual.
541    
542    checkpoint57u_post
543    o OBCS and PTRACERS: add open boundary support for passive tracers
544      - either use homogenous (pseudo) v.Neumann conditions or prescribe
545        OB-values from file; this is not different from the way theta and salinity
546        are treated
547      - however, Orlanski-radiation conditions are not supported, and the model
548        will stop if you use pTracers and Orlanski at the same time.
549      - beefed up the rountine obcs_external_fields_load: now only those open
550        boundary values are overwritten with values from files for which there
551        are really files, otherwise the OB-fields remain untouched. This makes
552        it possible to use different OBs at different ends of the domain (as
553        with EXF)
554    o reduce number of exch calls in shap_filt (s2).
555    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
556      truncation level) 4/5 MLAdjust test results (11&12 digits match).
557    
558    checkpoint57t_post
559    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
560    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
561      same truncation, independent of the face number: affects affects several
562      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
563    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
564      note that biharmonic viscosity + no-slip was not tested in any experiment.
565    o fix bug in non-linear free-surf side-drag ; generate new output for
566      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
567    o make mnc honor the writeBinaryPrec flag for most kinds of output
568    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
569    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
570      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
571    o add brackets in multi-terms sum to get same truncation, independent of
572      the face number (manage to get exactly same value of gU,gV at the cs-edge)
573      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
574    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
575      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
576      a maximum grid-scale Reynolds number.  Also, changes all length calculations
577      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
578      Suggested values of viscosity parameters found in mom_calc_visc.
579      Many new viscosity diagnostics available.
580    
581    checkpoint57s_post
582    o Add clearing-house for viscosity calculations, mom_calc_visc and
583      correct numerous bugs in LeithD and Smagorinsky discretizations.  
584      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
585      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
586      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
587      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
588      The Strain-Tension form is now called with useStrainTensonVisc=.true.
589      ViscAhStrain and viscAhTension are now retired.
590    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
591    o In response to JMC's bug report, genmake2 now ignores any soft-links
592      that it finds in the *current* directory when searching for files.
593      Soft-links found in any other source directories will still work as
594      they did before.
595    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
596      a C routine to unlimit the stack size
597    o mnc-ify pkg/aim snapshot vars
598    o mnc-ify pkg/land as requested by Daniel
599    o various changes to mnc including:
600      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
601      - output can now be grouped so that all files within a group
602          change the ITER portion of their names in lock-step together
603      - can now read ("global") PER-FACE (in addition to PER-TILE) files
604          and works with both EXCH1 and EXCH2 (but needs more testing)
605      - writing works for all verification test cases w/ g77 on Linux
606    
607    checkpoint57r_post
608    o make MNC variable initialization happen earlier
609    o add diagnostics for (almost) each term of the momentum Eq.
610    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
611    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
612    o remove MINIMAL_TAVE_OUTPUT option ;
613      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
614    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
615      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
616    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
617    o add time-dependent SST, SSS control
618    o cost terms in ecco/ modularized (new cost_generic.F)
619    o cost_averages routines are modularized (new cost_averagesgeneric.F)
620    o new infrastructure for seaice model vs. obs misfits in seaice/
621      * driver from the_main_loop.F is seaice_cost_driver.F
622      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
623      * gradient check in Exp. 6a of natl_box_adjoint/
624    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
625      (see README file)
626    
627    checkpoint57q_post
628    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
629    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
630      - bug was reported by Jean-Michel and Ian Fenty
631    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
632      update exp. cpl_aim+ocn output.
633    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
634      Needed for high-res. runs with large global files
635      to be able to limit tapelev size
636    o Changed some tests for adjoint:
637      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
638      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
639      * global_ocean.90x40x15/ back to default 3-level checkpointing
640    o Modifications to enable scripted COMMON to MODULE conversion
641      * verification/OpenAD/code/ has necessary scripts and description;
642      * converts, compiles and runs successfully;
643    
644    checkpoint57p_post
645    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
646    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
647      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
648    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
649    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
650      (was already the case for dissipation with mom_vecinv,
651       and also the case for grad.PhiHyd when staggered-timeStep)
652      This will allow to put dissipation out-off the AB time-stepping.
653     Unfortunately, affects truncation error. Update output of exp. that "fails"
654      (cg2d matching number) and leave the others for later: front_relax(10),
655      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
656      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
657    
658    checkpoint57o_post
659    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
660      (2) its ready to be documented during the 20050801 DocFest
661    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
662      for ideal_2D_oce and lab_sea on linux_ia32_g77
663    o set to #undef CTRL_SET_OLD_MAXCVARS_30
664      in global1x1_tot/code_seaice_adj to access indices 32, 33
665      (worth another tag)
666    
667    checkpoint57n_post
668    o adding precip control xx_precip 32
669    o adding swflux control xx_swflux 33
670    o Replacing 10 forcing penalty cost routines by 1 generic.
671    o Implementing partitioning in time-mean and variable adjustment
672      for atmos. state.
673    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
674    o in natl_box_adjoint:
675      * updated exp 1 to 10
676        (but does not have time-mean vs. variable split results yet)
677    o updated global1x1/*_seaice_adj/
678      to incorporate latest changes
679    o enable useSingleCpuIO for mdsio vector routines
680      (applies in particular to tapelev I/O)
681    o removed inefficient K-loop in all active_file*control*.F
682    
683    checkpoint57m_post
684    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
685      and advect_cs (use EXCH-2 and standard cs-32 grid files).
686    o pkg/exch2: filling of face-corner halo regions is optional
687      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
688    
689    checkpoint57l_post
690     tag before updating tutorials (pre-release-2)
691    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
692       for output and interpolation of input fields onto model grid)
693    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
694       Affects results of exp. rotating_tank ; update output.txt.
695    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
696          and taking the square quantity and/or using a fraction-weight field.
697    o fix aim_diagnostics_init.F mate numbers.
698    o add mnc output capability to diagnostics/diagstat and update
699      our cvsignore files for the ACSII output generated
700    
701    checkpoint57k_post
702    o lab_sea now uses diagnostics package and provides a suite of
703      new EXF diagnostics output.
704    
705    checkpoint57j_post
706    o exf
707      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
708        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
709        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
710      * extended diagnostics output
711        - now includes all EXF variables
712        - hs, hl moved to common block
713        - separate S/R for diagnostics, called after ctrl vector is added
714        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
715        - EXFqnet contains true Qnet (i.e. includes qsw)
716      * updated verif. lab_sea, global_with_exf
717      * Rearranging hflux (exf_mapfields -> exf_getforcing)
718        to ensure that diagnostics sees a true EXFqnet
719    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
720    o diagnostics pkg: change pointers so that 1 diagnostic can be used
721      several times with different frequencies.
722    o mnc-ify the thsice package as requested by Daniel Enderton
723      - the monitor--MNC output needs work
724      - many attributes need to be added (most are currently blank)
725    o mnc-ify theaim_v23 package as requested by Daniel Enderton
726      - many attributes need to be added (most are currently blank)
727    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
728    o add Sadourny like discretization to the 4th.O vorticity advection scheme
729    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
730      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
731         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
732    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
733     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
734    
735    checkpoint57i_post
736    o Diagnostics package was changed: diagnostic allocation is now deactivated
737      by setting an empty file name in the namelist (used to be by setting 0 frequency)
738    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
739      add 1rst Order upwind vertical Shear.
740    o add a quick fix for A/B checkpointing in OFFLINE mode
741    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
742      end-run around the C/Fortran linking horror in eesup/src/timers.F
743    o added pkg/runclock: allows user to terminate run based on wall clock
744    o added non-hydrostatic scaling parameter: nh_am2
745    o pkg/my82: futile attempt to make results compiler-independent by adding
746      some "_d 0", etc. no effect.
747    o for mnc output, fill the 'T' coordinate var with myTime and create a
748      separate 'iter' variable for iteration count
749    o pkg/diagnostics:
750      add new capability: output of Global/Regional & per-level statistics ;
751      tested against monitor output (including land & thSIce) on various exp.
752    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
753    
754    checkpoint57h_done
755      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
756      data.diagnostics, data.gchem, data.ptracers) is done.
757    
758    o pkg/diagnostics: prepare for Global/Regional statistics.
759      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
760    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
761      and rename it: DIFFERENT_MULTIPLE
762    
763    checkpoint57h_post
764    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
765    o pkg/diagnostics: change output frequency, now in seconds (instead
766      of Nb of iterations). This requires to change data.diagnostics.
767    checkpoint57h_pre
768    
769    o in mnc, let the user create the output dir if both mnc_outdir_date
770      and mnc_outdir_num are false
771    o add fflags() to pkg/diagnostics which allows one to specify, on a
772      per-file basis, the file precision [default behavior is unchanged]
773    o added diagnostics to pkg/kpp, including computation of mixed layer
774      depth based on a temperature/density criterion
775    o updated verification/natl_box to test the new pkg/kpp diagnostics
776    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
777    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
778    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
779      not mnc -- this mistake was found by JMC and is now corrected
780    
781    checkpoint57g_post
782    o add Adams-Bashforth 3rd Order time stepping:
783      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
784      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
785    checkpoint57g_pre
786    
787    o make lambda[Theta,Salt]ClimRelax spatially varying
788      (default remains spatially uniform constant based on tau)
789    o added new control variables
790      * init. uVel, vVel, etanN
791      * lambda[Theta,Salt]ClimRelax
792    o separate masks used for ctrl_pack/unpack 'from write_grid' output
793      (suggested by G. Forget)
794    
795    checkpoint57f_post
796    o add parameter "baseTime" = model base time = time at iteration zero
797      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
798      account for baseTime shift
799    o move Coriolis arrays from PARAMS.h to GRID.h
800    checkpoint57f_pre
801    
802    o mnc-ifying the seaice package
803    o introduced an alternative length scale calculation for use in the limiting
804      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
805    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
806    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
807      as well as grad(vort3).  Made it compatible with both approximate form
808      for the cubed sphere and full form of these gradients.  Added flag
809      useFullLeith to select between approximate and full form.  
810    o add "d0" in getcon.F to reduce differences between compilers/platforms
811      update output.txt of exp. fizhi-gridalt-hs
812    o change port_rand funtion to allow to set the seed.
813    o fix obscure MNC bug involving conversion between reals and integers
814      - it caused no problems with certain (eg. gcc, ifc) compilers but the
815        new version is now more standards-compliant
816    o adjoint-related modifications
817      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
818      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
819      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
820    
821    checkpoint57e_post
822    o Adding eddy stress controls a la Ferreira et al.
823    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
824    
825    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
826      update output.txt of exp. fizhi-gridalt-hs
827    o add more "Z" dimensions and associated coordinate vars to MNC
828    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
829    o parameter calendarDumps: when set, approximate months (30-31 days) and years
830      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
831      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
832      months and years.  Requires pkg/cal.
833    o diagnostics: add pickup functionality
834      - off by default for backwards compatibility
835      - current version only uses MDSIO -- MNC will be added
836    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
837    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
838    
839    checkpoint57d_post
840    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
841    o modify verification/ideal_2D_oce so that it tests the creation of mnc
842      output from the diagnostics package
843    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
844    o make genmake2 more portable by using ".$FS" instead of ".f" for more
845      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
846    o add coordinate variables to the MNC output from the diagnostics package
847    o change MNC-flags default value: true when useMNC=TRUE
848    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
849      the ability (off by default) to read the grid information using MNC
850    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
851    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
852    o do snap-shot diagnostics at the middle of the time-interval (instead of
853      at the end).
854    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
855      new test for AIM with thSIce + slab-ocean
856    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
857    o move state variable diagnostics to the beginning of the time step ;
858      (note: still needs some work specially for snap-shot diagnostics)
859      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
860    
861    checkpoint57c_post
862    o Change testing option (-ieee) to get closer agreement between g77 & ifort
863    o generate new output.txt files on faulks with g77 & the new -ieee option
864    checkpoint57c_pre
865    
866    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
867      update output.txt of exp. global_ocean.90x40x15
868    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
869      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
870    o add saltFlux(+File) forcing capability with periodicExternalForcing
871    o allow to use pkg diagnostics for GM-Redi & ThSIce output
872    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
873    o improvements for the MNC output from DIAGNOSTICS:
874      - correct handling of the unlimitied dimension
875      - all dims now have associated coordinate variables
876      - variables located at U, V, and Corner ("Z") points are now written
877        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
878        *all* data points are output
879    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
880    o added pkg/seaice/seaice_monitor.F
881    o mdsio_readfield.F can now read files visible only to master MPI process.
882    o pkg/seaice: some test code for ice-modified ocean stress
883    o exf_getffields interpolation defaults to bilinear for all scalar forcing
884      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
885      spurious negative numbers for precipitation and humidity.  Will cause
886      some small numerical differences for integrations using pkg/exf/exf_interp.F.
887    o pkg/ctrl/
888      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
889        May be enabled via doPackDiag
890      *  introduce z-scaling of
891         + gradient (doZscalePack) and
892         + control (doZscaleUnpack)
893    o pkg/mdsio/
894      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
895      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
896    
897    checkpoint57b_post
898    o simplify options in diagnostics_fill arguments (remove weird combinations)
899    o fix MNC coordinate variables so that they now contain per-face index
900      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
901      general, EXCH2 grids are only aligned to a "local" coordinate system
902    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
903    o Implement instantaneous output within pkg diagnostics:
904      setting a negative frequency in data.diagnostics produces
905     "snap-shot" output (as opposed to time-average if freq > 0)
906    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
907      NOTE: change ptracer diagnostics name: use 2 characters to work with
908            more than 9 tracers. Add also diagnostics of advect & diffus flux.
909    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
910      becomes the coordinate variable for the 'T' dimension
911    o add CF-style coordinate variables to MNC
912      - just a first cut:  numbers are meaningless on the cubesphere and
913        missing along the T axis but otherwise it works!
914    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
915    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
916    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
917      this is based directly on what the model compute, so that the content of
918      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
919    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
920    o clean up build options files for SunOS, in particular
921      - remove -traditional from xmakedepend
922      - change -xarch=v9 to -xarch=native for f77
923      - restore use of make (not gmake)
924      - add CC=gcc if using g77
925    o changes per discussion of AM, JMC, & EH3 today:
926      - move redundant "grid" variables out of "state" -- in preparation of
927        creating proper CF-style coordinate variables and in recognition
928        that any/all grid variables can be easily copied (eg. w/NCO) from
929        the grid files into any of the other NetCDF files
930      - *always* output grid variables with MDSIO (this will eventually be
931        changed)
932      - output MNC grid file if useMNC is true
933    o every instance of _END_MASTER() has been found and replaced with
934      _END_MASTER( myThid ) in order to satisfy certain picky Sun
935      preprocessors
936    o re-arrange diagnostics pkg initialisation:
937     - allow each package to extend the available diagnostics list
938     - add some checking and fix small problems (multi-threaded, ...)
939     - new S/R diagnostics_fill (replace fill_diagnostics):
940       look through the short list of active diag. (instead of the long list)
941       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
942    
943    checkpoint57a_post
944    o this set of changes restores TAMC compatibility
945      tested for global_ocean.90x40x15 adjoint on trough
946      (what a pain)
947    
948    checkpoint57a_pre
949    o some modifs in tools/build_options for sunos
950    o call ctrl_pack for ctrl at end for optimcycle=0
951    
952    checkpoint57
953    o add horizontal bi-harmonic viscosity for vertical velocity
954      - new parameter viscA4W (defaults to viscA4)
955      - affects only non-hydrostatic code
956      - to be done: no-slip lateral boundary conditions
957    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
958    o implement Implicit Vertical advection for pTracers
959    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
960      (implemented also for implicit vertical diffusion & advection)
961    o OBCS: extend application of tracer open boundary conditions
962      to a strip beyond the boundary of width Olx/Oly
963    o add call monitor to TAF set of required calls (flow directives)
964      and include in natl_box_adjoint
965    o untangle a few ifdefs related to cost, ctrl, autodiff
966      untangel a few ALLOW_ECCO_OPTIMIZATION
967    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
968      (theta2, salt2 in ecco_cost_weights)
969    
970    checkpoint56c_post
971    o OBCS as control variables
972      - update ctrl_ad_diff.list, obcs_ad_diff.list
973      - remove balance of obcs controls from default
974      - fix index bug nobcs in ctrl_init
975      - fix dummy fields filen in ctrl_pack
976      - add dummy weights for obcs
977    o lsopt: comment out fort.94 output
978    o optim:
979      - remove unnecessary header files
980      - adjusted namelists
981      - add xerbla.F to Makefile
982    o exf:
983      - multiple modifications of exf_check_range
984      - unit change in exf_init_runoff from [m/year] to [m/s]
985    o mdsio:
986      - i/o-vector change debugLevel from debLevA to debLevB
987    
988    checkpoint56b_post
989    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
990      is called from DO_THE_MODEL_IO
991      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
992      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
993      - clean up PTRACERS_WRITE_TIMEAVE a little
994    o add another verification experiment that tests both the cfc-pkg and
995      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
996      reactive tendencies treated inline with regular timestepping
997    o testreport previously did a lousy job of comparing small numbers, so
998      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
999      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1000      testreport.
1001    o ptracers_monitor: bug fix for MPI
1002    
1003    checkpoint56a_post
1004    o GCHEM: finish reorganizating the package
1005      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1006        (introduces another 3D-array for each passive tracer, but only if
1007        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1008        gchemTendency is not needed because the timestep is done separately)
1009      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1010      - GCHEM is now---more or less cleanly---separate from PTRACERS
1011      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1012        so clear to me how that should be done in a general way.
1013    o CFC: improve formatting of output in CFC_ATMOS
1014    o PTRACERS:
1015      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1016        that ALL experiments with ptracers enable can be checked. This makes
1017        GCHEM_MONITOR obsolete.
1018      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1019        monitorFreq
1020      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1021    o add PTRACERS (PTR0[1-5]) to testreport output
1022    o exf_check_range:
1023      * default changed to .TRUE.
1024      * will check values for niter0 if debLevA, every timestep if debLevB
1025      * STOP in exf_check_range if 'out of range'
1026      * range chosen generous to allow for potential extema
1027      TBD: a version with stricter range
1028           permitted range would be runtime parameters
1029    o GMredi:
1030      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1031      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1032      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1033    o GCHEM:
1034      - move call to GCHEM_FORCING_SEP, so that it is now called before
1035        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1036      - introduced a useGCHEM runtime flag and applied it everywhere.
1037      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1038        this flag is now only visible within GCHEM-pkg routines.
1039      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1040        be replaced by a 3D array that is computed before thermodynamics; for
1041        this, the tracer ID iTracer had to be included into the parameter list
1042        of ptracers_forcing
1043      - set up forward_step to call gchem_forcing, that will replace
1044        gchem_forcing_int in ptracers_forcing
1045      - cleaning up
1046    o small cleaning of exch2: remove files that are also in eesupp/src
1047    
1048    checkpoint56
1049    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1050    o mnc: cleanup "full" files--fixes out-of-memory problem
1051    o ECCO-GODAE
1052      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1053      * fully merged and updated from SIO code
1054        windstress sign change affects
1055        - exf_inscal_[u/v]stress
1056        - sign of xx_tau[u/v] adjustments
1057        - signs in cost_scat
1058      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1059      * natl_box_adjoint updated and compressed
1060      * 2-level checkpoint switch added
1061        (tested in EXP. 1 of natl_box_adjoint)
1062      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1063    o SVD
1064      * first complete, non-hacked version for SVD calculations
1065      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1066        performed via direct access files admtlm_vector.it????
1067        (via ctrl_[un]pack)
1068      * optimcycle is used for ARPACK iteration counter
1069        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1070      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1071        and add linear transforms where necessary
1072      * controls are initial/final SST, SSS (can be extended; need to check
1073        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1074    o mdsio: filename info to both stderr, stdout
1075    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1076      from sign change
1077    
1078    checkpoint55j_post
1079    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1080      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1081    o add consistent build directories and .cvsignore files to verification
1082    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1083    o make all subroutines 30 or less characters in length for certain older
1084      compilers to work (a thorough search only turns up two routines in
1085      pkg/ptracers)
1086    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1087      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1088    
1089    checkpoint55i_post
1090    o change arrays for total vertical diffusivity (2.D if explicit,
1091      3.D if implicit) ; each ptracer uses its own background value.
1092    o added mnc/NetCDF output capability to ocn_compon_interf
1093      - added bits to verification/cpl_aim+ocn so that it can run on
1094        ITRDA and other clusters without the mpirun "-wd" option
1095    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1096      configuration
1097    o give MNC the ability to create additional files rather than
1098      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1099      - the default is just less than 2GB which is a practical limit
1100        on many systems
1101    o Compute the non-local term using either KPP vertical diffusivity (=default)
1102       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1103    
1104    checkpoint55h_post
1105    o add verification test "vermix"
1106    o remove all the *_ioinc flags and replace with the single global
1107      outputTypesInclusive flag
1108    o allow to set a vertical profile of vertical diffusivity for T & S
1109    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1110    o useMNC moved from data.mnc to data.pkg
1111    
1112    checkpoint55g_post
1113    o Renaming carbon AD experiments to comply with testreport conventions
1114    o Updating adjoint of Held-Suarez hs94.1x64x5
1115    o Fixing directives for non-ECCO forward_step, after ECCO directives
1116      have been fixed to avoid recomp. of do_oceanic_phys
1117      Works well for global_ocean.90x40x15,
1118      but recomp. issue remains for carbon
1119    o Updating adjoint output for natl_box_adjoint after
1120      pkg/ecco has been modified (see taga c55d_post)
1121    
1122    checkpoint55f_post
1123    o rename to timeave_init_fixed
1124    
1125    checkpoint55e_post
1126    o some delicate re-shuffle of store directives to avoid one
1127      extra call of do_oceanic_physics
1128      affects ecco_the_main_loop.F, do_oceanic_physics.F
1129      checkpoint_lev1_directives.h
1130    o NB: this may break global_ocean adjoint temporarily,
1131      but it is clear how to fix it. Will do later, need this now.
1132    
1133    checkpoint55d_post
1134    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1135    o ecco_cost_weights is modified to 1x1 runs
1136    o modifs to allow observations to be read in as
1137      single file or yearly files
1138    o enable to read exf forcing fields as either
1139      single file or yearly files (flag useExfYearlyFields)
1140    checkpoint55d_pre
1141    
1142    o switch between 2-level and 3-level checkpointing
1143    o add ability of MNC to write local and "partial" (eg. 2D slices where
1144      the full 3D field is never actually stored) arrays to NetCDF files
1145      with the correct (that is, the complete multi-dimensional) set of
1146      array indicies
1147      - used in mom_vecinv() to write the diagFreq output
1148      - tested (demonstrated) in verification/aim.5l_cs
1149    o further mnc-ification
1150      - add verification/lab_sea to the list with mnc setups
1151      - fix undefined mnc v-names in cd_code
1152      - add kpp to mnc output (both snapshot and timeave)
1153    o non-hydrostatic code
1154      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1155        in calc_gw.F
1156      - defaults to viscAh
1157      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1158        friction or Leith) in non-hydrostatic mode, as long as there is
1159        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1160    o pkg/cost
1161      extend simple cost functions to treat time mean quantities
1162      (T,U,V) via cost_accumulate_state from cost_tile
1163    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1164        be 2 times larger than the minimum size the advection scheme requires.
1165        now get a perfect conservation of salt in advect_cs test-exp (updated)
1166    o GGL90 (Gaspar's TKE mixed layer)
1167      - add horizontal diffusion of TKE, requires exchanges in
1168        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1169        default. In OPA there is no horizontal diffusion of TKE but the
1170        mixing coefficients are computed from a horizontal average of TKE of
1171        6 points or so. I think that diffusion has a little more physical
1172        justification.
1173      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1174        was in vain)
1175      - mask tke-variable in ggl90_init
1176    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1177    o fix biharmonic diffusion on CS-grid.
1178    o more obcs stuff
1179      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1180        for reading boundary values. This routine is called from
1181        obcs_prescribe_read
1182      - updated obcs_check
1183      - changed sponge layer relaxation parameter units for days to seconds
1184      - turned off sponge layer by default
1185      - changed argument list of OBCS_CALC to myTime+deltaTclock
1186      - fixed about 35 bugs in obcs_external_fields_load
1187    
1188    checkpoint55c_post
1189    o obcs stuff
1190      - new runtime flags useOBCSprescribe, useOBCSbalance
1191      - re-arranged obcs_calc
1192      - moved exf_getobcs to obcs_prescibe_read
1193        obcs_prescibe_read is called after ORLANSKI stuff
1194        and independent of it (executable can contain all).
1195      - updated obcs_check
1196      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1197        These may be necessary only if tangential velocities are
1198        prescribed at OB, not sure, needs testing.
1199    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1200      which simplifies the calls and passes the ifc check-bounds test
1201    
1202    checkpoint55b_post
1203    o add a 2D scalar, Z location, exchange_2 routine.
1204    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1205      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1206      affects advect_cs results (for the wrong reason): update output.txt
1207    o use a more standard discretization for biharmonic viscosity ;
1208     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1209      affects results of dome set-up: update output.txt
1210    o fix gad_advection.F (CubedSphere part), back to version 1.23
1211    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1212    
1213    checkpoint55a_post
1214    o merged code to
1215      * prescribe/read time-dependent open boundaries
1216        (works in conjunction with exf, cal)
1217      * sponge layer code for open boundaries
1218      * each boundary N/S/E/W now has its own CPP option
1219        (healthy for the adjoint)
1220    
1221    checkpoint55
1222    o up-to-date adjoint of previous breaks
1223      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1224      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1225      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1226      - carbon: * remove tr1-related adjoint verification
1227                * add ptracer as control variable
1228    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1229      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1230    
1231    checkpoint54f_post
1232    o in verification/carbin/ remove experiment related to
1233      ALLOW_PASSIVE_TRACER (array tr1 etc)
1234      code_ad/ input_ad/ results_ad
1235    
1236    o add two new packages
1237      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1238        + subject to optimization (memory)
1239      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1240        + subject to reordering (many GOTOs in the original code)
1241        + so far opps is called for every (i,j) point, and then operates in
1242          the vertical; one may want to reorder the scheme in order operate in
1243          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1244          fields)
1245    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1246      - all verification tests compile and run with linux_ia32_g77
1247      - defaults are compatible with current input files--nothing
1248        should change if you were not previously using MNC
1249      - MNC output has been added in numerous places (eg. timeave)
1250        but there are still a few writes not yet do-able with MNC
1251        (this is in progress)
1252      - flags now allow for either/or/both use of MDSIO and MNC and
1253        documentation will soon follow
1254      - numerous small formatting cleanups for ProTeX
1255    o add version info (via BUILD_INFO.h) to MNC and stdout
1256    
1257    checkpoint54e_post
1258    o add two new packages
1259      - pp81 (Packanowski and Philander, 1981), Richardson number and
1260        stratification dependent mixing
1261      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1262      - these scheme operate in a similar manner as KPP (without ghat, of
1263        course), however there is only one diffusivity that is used for both
1264        temperature and salinity (and passive tracers)ç
1265    o add offline package
1266    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1267      provided by Stephanie Dutkiewicz
1268    o genmake2: add ability to search for C compilers and cleanup test output
1269      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1270    
1271    checkpoint54d_post
1272    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1273    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1274      leading to additional shift by 5 days each year of integration
1275       (i.e. leading to considerable offset over the years)
1276    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1277    o start with no AB and no initial filtering (staggerTimeStep):
1278      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1279    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1280      (external loading & cpl import/export stay in forward_step.F)
1281    o update coupling interface to work with new staggerTimeStep
1282    o change MDSIO ptracers_pickup.
1283    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1284    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1285    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1286    
1287    checkpoint54c_post
1288    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1289      this affects (truncation error) output.txt of test-exp:
1290       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1291    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1292    o change Qnet to always be the net heat flux, (+upward).
1293      affects (truncation error) output of natl_box exp.: updated
1294    o define the max number of passive tracers in PTRACERS_SIZE.h
1295    o start to test mnc routinely in exp0
1296    o add sea-ice loading (sIceLoad) as a new forcing field.
1297    
1298    checkpoint54b_post
1299    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1300       impressive on Altix and Opteron systems)
1301    o diagnostics can now write NetCDF files through the mnc package
1302    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1303    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1304    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1305      affects (truncation error) output of lab_sea & natl_box exp.: updated
1306    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1307    
1308    checkpoint54a_post
1309    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1310    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1311    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1312    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1313      + internal_wave (shift in writing cg2d_ini_res)
1314    checkpoint54a_pre
1315    
1316    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1317      - modified verification/lab_sea and natl_box_adjoint accordingly
1318    
1319    checkpoint54
1320    checkpoint53g_post
1321    o prepare splitting of thermodynamics: store convect.counter in common block
1322    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1323      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1324    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1325    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1326    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1327    o restore adjointability
1328    
1329    checkpoint53f_post
1330    o modifications that affect AIM experiment results (update output.txt):
1331      - no advection of S at top interface Nr (pkg/generic_advdiff)
1332      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1333    o AIM pkg:
1334      - include stability function into surf.Flux derivative relative to Tsurf
1335      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1336    
1337    checkpoint53e_post
1338    o merged cylindrical coord configuration
1339    o added rotating_tank experiment
1340    checkpoint53e_pre
1341    
1342    checkpoint53d_post
1343    o faulks upgraded: re-generate output.txt that have changed:
1344       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1345    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1346    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1347    o added Sadourny discretization of Coriolis
1348      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1349      - re-enabled use of omega3 (useAbsVorticity)
1350    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1351      vector-invariant equations
1352      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1353    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1354      hopefully without new bugs
1355      - still to do: biharmonic friction for non-hydrostatic w
1356    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1357    o regenerated output for global_ocean_ebm (using -ieee)
1358    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1359      of mom_common/
1360      - simple re-arrangement of instructions within computing loop
1361    checkpoint53d_pre
1362    
1363    checkpoint53c_post
1364    o new version of coupler for AIM+thSIce and Ocean models
1365     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1366     - land: change Evaporation of snow
1367     - aim with thSIce: fix bug in snow-precip.
1368    o changes to calc_gw.F
1369     - bug fix for w^2 term near the bottom boundary
1370     - (hopefully) improve the lateral slip boundary condtions for use with
1371        partial/looped cells
1372      - because the bug fix changes two verification experiments anyway (exp5
1373        and plume on slope), change the lateral boundary condition from half slip
1374        to the value of no_slip_sides
1375    o ebm package wasnt quite up to the parallel task. Fixed that.
1376    o Adjoint of EBM package + verification
1377      * TLM OK
1378      * ADM not sufficient accuracy yet (needs further testing)
1379    
1380    checkpoint53b_post
1381    o Commiting new energy balance model to repository
1382      * package is pkg/ebm
1383      * verif. is verification/global_ocean_ebm
1384      * references are in ebm_driver.F
1385    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1386    C        Global thermohaline circulation. Part I:
1387    C        Sensitivity to atmospheric moisture transport.
1388    C        J. Climate 12(1), 71-82
1389    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1390    C        Global thermohaline circulation. Part II:
1391    C        Sensitivity with interactive transport.
1392    C        J. Climate 12(1), 83-91
1393    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1394    C        Destabilization of the thermohaline circulation
1395    C        by atmospheric eddy transports.
1396    C        J. Climate 7(12), 1870-1882
1397    o Will need long integration testing.
1398    checkpoint53b_pre
1399    
1400    o created pkg/mom_common in preparation for variable viscosity code
1401    o renamed and split ini_mnc_io
1402    o pkg/land: only liquid water can diffuse or run-off
1403    o AIM using land: soil wetness availability account for snow
1404    o added printMapIncludesZeros to EEPARMS namelist
1405    
1406    checkpoint53a_post
1407    o restore TAMC compatiility for exf_constants.h
1408      (no usage of _d in .h)
1409    o Additional storing in KPP in an attempt to fix
1410      TAMC problem with adjoint of KPP code.
1411      (no success...)
1412      Identical code works fine with TAF.
1413    o Fixed verification/natl_box_adjoint experiments.
1414      Initial conditions for Experiments 4 and 5 are now
1415      set to "SEAICE_initialHEFF=0", which is more reasonable,
1416      and hence gives results closer to that of Experiment 2.
1417      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1418    
1419    checkpoint53
1420    o stable checkpoint with up to date adjoint
1421      TLM tests only run for 1st grdchk at the moment. Its unclear if
1422      this is a code problem or a problem with resetting code for g_
1423      variables that is being autogenerated wrong.
1424      Otherwise:
1425       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1426       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1427         are both still in chaos following their security messes.
1428    
1429    checkpoint52n_post
1430    o various build (mostly genmake2) changes including:
1431      - ability to build/run more easily within Cygwin and MacOS X
1432      - more complicated Makefiles with a stronger dependence on Gnu Make
1433    o pkg/seaice modifications
1434      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1435        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1436        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1437      - changed proxy for geostrophic velocity and updated
1438        verification/lab_sea/results/* accordingly
1439      - removed ADI dynamic solver from pkg/seaice
1440      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1441        they caused a segmentation fault under certain circumstances
1442      - removed unused field WATR
1443    o bug fix in exf-package:
1444      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1445         now reflect that.
1446    o small fixes in the cal-package:
1447      - set reference date to first of January for the 'model'-calendar
1448      - failing of cal_CheckDate in cal_FullDate now actually results in a
1449        warning
1450    o small modifications in exf-package to increase flexibility:
1451      - change climtempfreeze from a constant to a runtime parameter that
1452        is specified in data.exf_clim (default = -1.9)
1453      - introduce runtime parameter windstressmax (default = 2.0) that is
1454        specified in data.exf
1455    o fix in pkg/thsice:
1456      - update Evap (Tsf changes) to be consistent with Latent heat flux
1457      - maintain snow precipitation unchanged (even if Tsf >=0).
1458     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1459    
1460    checkpoint52m_post
1461    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1462      this does not change any of the results, because myIter=0 in swfrac always
1463      lead to jwtype=2 (the default anyway), but the call makes little sense
1464      as a default
1465    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1466    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1467      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1468    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1469    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1470    o extending useSingleCpuIO option to work with new exch2 I/O format
1471      - old-style, missing-tile I/O is still accessible by defining CPP
1472        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1473    o monitor package can write to NetCDF files and/or STDOUT
1474    o fix re-definition bug in MNC_GRID_INIT_ALL()
1475    o doc/api_reference added
1476      - a framework for building an API Reference Manual using all
1477        the "protex" comments embedded in the code
1478      - see pkg/generic_advdiff, pkg/mnc for examples
1479    o MNC:
1480      - make myThid the last argument for all subroutines
1481      - new default for the grid files: NO halos
1482      - add useMNC and other run-time flags
1483      - separate per-file-group handling of the unlimited dimension
1484      - early initialization of MNC w/ flags read at the eeboot stage
1485        and lookup tables set in initialize_fixed
1486      - write all MNC output to a freshly-created directory
1487    o thermodynamics sea-ice (thsice) is now tested with testreport.
1488    o test exp. advect_cs: use the standard cs32 grid ; update output.
1489    o Added functionality to grdchk:
1490      pick global i,j,k position (or nearest wet) where to perform check.
1491    
1492    checkpoint52l_post
1493    o new land formulation:
1494      a) use ground enthalpy as prognostic variable to ensure exact
1495         energy conservation.
1496      b) account for water temperature and for latent heat of freezing
1497         in all processes (rain, run-off, ground storage)
1498      c) compute surface and ground temperature implicitly.
1499    o aim_v23 modification for new land model:
1500      a) Treat separately land / ocean / sea-ice surface fluxes
1501         to allow implicit computation of land & sea-ice surface temp.
1502      b) add snow precipitation.
1503    checkpoint52l_pre
1504    
1505    o fix problem (when 1 tile is empty) in min/max monitor.
1506    o fix bug in timeAve (u,vZetatave in common block)
1507    o no restoring terms under ice for pkg/seaice
1508    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1509    o bug fix for pkg/seaice pickups
1510    o change MNC call locations and add coordinate attributes
1511    o mask vorticity at the corner ; affects global_ocean.cs output
1512    o fix ini_curvilinear_grid ; test CS experiments with mpi
1513    o aim.5l_cs: modify sea-ice fraction input file ; update output
1514    o exf: Adding simple range check routine for exf fields after read
1515    
1516    checkpoint52k_post
1517    o removed top-level directory "diags"
1518      - we migrated these functions to pkg/timeave a long time ago
1519    o fixed bug introduced in pkg/monitor
1520    o accuracy ctrlprec = 32 insuffient for gradient checks using
1521      averaged fields (I/O via cost_averages)
1522      -> use ctrl.h in active_file*.F to control I/O precision.
1523    o paramter list of CALL ADTHE_MAIN_LOOP
1524    o added initial do_the_model_io to ecco
1525    o set all ...Freq to zero after cost_final
1526      taveFreq, dumpFreq, pChkptFreq
1527    o MAIN and ECCO differentiability restored
1528    
1529    checkpoint52j_post
1530    o fix nchklev in tamc.h for global_ocean...
1531    o Bringing flow and store directives up-to-date
1532    o Really weird thing!
1533      call do_the_model_io from the_main_loop with parameters
1534      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1535      TAF places a faulty re-call of initialise_varia
1536      after cost_final call which should not be there!
1537    checkpoint52j_pre
1538    
1539    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1540      error messages
1541    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1542    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1543      debug output
1544    o modfied mdsio_writefield.F to handle non-global files under exch2
1545    o update AIM Cubed-Sphere exp (aim.5l_cs):
1546      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1547    o update AIM Equatorial Channel exp:
1548      use standard aim_v23 pkg and change the SST fields to be more realistic.
1549    o globalFile now works with exch2
1550    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1551      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1552    o limit timeave output for hi-res integrations
1553    
1554    checkpoint52i_post
1555    o removed CPP_EEOPTIONS.h from verification/*/code
1556    o updated the tiling for global_ocean_pressure
1557    checkpoint52i_pre
1558    
1559    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1560      the old pkg/aim).
1561    
1562    checkpoint52h_pre
1563    o shortened offending lines in exch2_send_rx?.template
1564    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1565    o genmake2: add build & execute test for NetCDF code
1566    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1567      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1568    o added useSingleCPUIO flag to monitor.F and mon_out.F
1569    o added temporary hack for sea-ice dynamics on the cube:
1570      metric terms are ignored and it is assumed that
1571      there is no sea-ice on cube faces 1, 2, 4, and 5.
1572    
1573    checkpoint52f_post
1574    o added exch2 cube routines to pkg/exch2
1575    o modified hs94.cs-32x32x5 to use it
1576    o added new grid files to hs94.cs-32x32x5
1577    checkpoint52f_pre
1578    
1579    checkpoint52e_post
1580    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1581      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1582    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1583      to work with implicit vertical advection and AB ;
1584    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1585    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1586     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1587    checkpoint52e_pre
1588    
1589    o fix bug in impldiff when Nr=1 or Nr=2.
1590    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1591    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1592    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1593      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1594    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1595    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1596    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1597    
1598    checkpoint52d_post
1599    o re-tiled many expts to allow comparison in multi-processor mode
1600      - updated output accordingly
1601      - changed hs94.128x64x5 to use intial T from file rather than use the
1602        random number generator
1603    o add infrastructure in model routines for fizhi and gridalt packages
1604    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1605    o changes to permit hi-res, cubed-sphere, configuration
1606      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1607      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1608      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1609        of surface winds for the cube
1610      (A verification experiment, based on global_ocean.cs32x15, but with
1611       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1612       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1613       complete with example surface forcing files and matlab scripts to look
1614       at the output and compare it with that of global_ocean.cs32x15.)
1615    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1616       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1617       to conform to the common rule.
1618    o check-in the first version of the coupler + interfaces for multi-components
1619       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1620       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1621       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1622       - ocean and atmos. share the same horizontal grid (no interpolation).
1623       - exchanges between component and coupler is done in forward_step
1624    o new verification experiment, cpl_aim+ocn:
1625       coupled ocean - AIM atmosphere on cs32 grid.
1626    
1627    checkpoint52d_pre
1628    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1629    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1630    
1631    checkpoint52c_post
1632    o Fixing OPTIONS files for use of exf:
1633      - ALLOW_ECCO not needed
1634      - ECCO_CPPOPTIONS.h should not be included from
1635        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1636        as has been the case in the past
1637      - All cal/exf related options are currently set in
1638        single header file. Should remain so until we
1639        agree on a consistent new policy.
1640    o Removed all CPP options for cal package.
1641      cal has no more CPP options.
1642    o modified STOREs in GAD_ADVECTION
1643    o corrected key comp. for passkey
1644    
1645    checkpoint52b_post
1646    o new version: "thsice" of thermodynamic sea-ice pkg:
1647     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1648     - modify fluxes but do not change theta directly;
1649     - light cleaning of bulk_force pkg (still needed with thsice).
1650     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1651       + output_thsice.txt to test thsice & bulk_force pkgs.
1652    o put back grid & coriolis monitor output.
1653    checkpoint52b_pre
1654    
1655    o call "do_the_model_io" at the beginning (=> dump initial state)
1656    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1657    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1658      (need info on NUMBER_OF_PTRACERS)
1659    o missing PTRACERS headers in some routines
1660    o default tamc.h in pkg/autodiff supposed to crash
1661      to ensure proper customization
1662    
1663    checkpoint52a_post
1664    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1665      - moved surfaceTendencyTice from pkg/seaice to main code
1666      - subroutine FREEZE_SURFACE now limits only surface temperature
1667        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1668        => new output.txt for global_ocean.cs32x15 & global_with_exf
1669      - keep the old version of FREEZE for backward compatibility;
1670        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1671      - corresponding modifs for TAF directives
1672    o added surface flux output variables to TIMEAVE_STATVARS
1673    o time-averaged output for pkg/ptracers
1674    o fix problem with ECCO-related divided adjoint
1675      snapshot file was missing some ad-variables,
1676      but no warning issued by TAF
1677    
1678    checkpoint52a_pre
1679    o some bug fixes for #undef REAL4_IS_SLOW
1680    
1681    checkpoint52 = ecco_c52_e35
1682    o after testing adjoints of checkpoint51u_post
1683    
1684    checkpoint51u_post
1685    o this is the post-merge tag of the ecco-branch
1686      (needs another clean checkout and re-testing)
1687    o various natl_box_adjoint configs and results
1688      but no input fields
1689    o obcs adjoint not yet merged!
1690    o adding ECCO global 1x1 and 2x2 degree configs
1691    o updated/extended some store directives for seaice
1692    o pkg/ecco now containes ecco-specific part of cost function
1693    o top level routines the_main_loop, forward_step
1694      supersede those in model/src/
1695      previous input data.cost now in data.ecco
1696      (new namelist ecco_cost_nml)
1697    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1698    
1699    checkpoint51t_post
1700    o this is the pre-merge tag of the ecco-branch
1701    
1702    checkpoint51s_post
1703    o cleanup: removed various obsolete #define-s
1704    o pkg/grdchk
1705      - renamed 'ph-grd 3' to 'grad-res'
1706      - merged from ecco-branch
1707        (remaining bug fixes for obcs gradient checks)
1708      - additional high-precision output for testreport
1709        (grep for 'precision_grdchk_result')
1710    
1711    checkpoint51r_post
1712    o cleaned up or removed CPP_OPTIONS.h files
1713    o updated results for some of the tests to reflect the new
1714      optfiles (-ieee: -O0 instead of -O3)
1715    
1716    checkpoint51q_post
1717    o cd_code:
1718      - moved cd_scheme.F -> cd_code_scheme.F
1719      - separate read_checkpoint from cd_code_ini_vars.F
1720      - separated cd_code part from write_checkpoint
1721      - updated AD_SOURCE, generated .flow
1722      - added CD_CODE_VARS.h to the_main_loop
1723      - Moving cd_code specific store dir.s to pkg/cd_code
1724    o ctrl package totally restructured
1725      - pack/unpack now optional and decoupled from
1726        xx_/adxx_ I/O
1727      - ctrl_pack/unpack cleaned
1728        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1729      - confined inclusion of AD_CONFIG.h to where necessary.
1730    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1731    
1732    checkpoint51p_post
1733    o create initial cd_code package
1734      - WARNING: the initialization of fields within packages
1735        is broken because INI_FIELDS (where READ_CHECKPOINT is
1736        called) is called *before* PACKAGES_INIT_VARIABLES.
1737        This seems to be backwards since
1738        1) its important to initially zero the entire field including
1739           the "halo" region
1740        2) zeroing needs to be done *before* reading pickup info
1741           and the pickup call might or might not happen in any
1742           particular run
1743      - this needs an overhaul for R2
1744    o cleanup verification/*/code/GMREDI_OPTIONS.h
1745    o cleanup testreport
1746    
1747    checkpoint51o_post
1748    o bringing AD-related verif's up to date with genmake2
1749      - carbon/
1750      - global_ocean.90x40x15/
1751      - hs.94.1x64x5/
1752      - (front_relax/ )
1753    o (more) consistent directory structure for AD-related verif.'s
1754    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1755    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1756    o bug fix in find_alpha.F for MDJWF:
1757      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1758        change rho -> rho-rhoConst
1759      - replace call find_rho to find_rhonum
1760    o initialisation of rFlx extended to full array (required by TAF)
1761      and shifted to thermodynamics
1762    o removed PTRACERS.h in ptracers routine
1763    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1764    o Correcting initialisations for fVerU, fVerV.
1765    o helping TAF to recognize dependency on kUp for
1766      fVerU, fVerV
1767    o Replacing delZ by delR in pkg/ctrl/
1768    checkpoint51o_pre
1769    
1770    o undid all of cp51 pending some cleanups and discussion
1771    o added the [#include "AD_CONFIG.h"] statement to all files that need
1772       it for adjoint/tl #defines
1773     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1774     o removed tools/genmake since it no longer works
1775    
1776    checkpoint51n_post
1777    o modifications to make FREEZE flux visible to pkg/kpp
1778      - moved surfaceTendencyTice from pkg/seaice to main code
1779      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1780      - subroutine FREEZE now limits only surface temperature
1781        (this means new output.txt for global_ocean.90x40x15,
1782         global_ocean.cs32x15, and global_with_exf)
1783    o added surface flux output variables to TIMEAVE_STATVARS
1784    
1785    checkpoint51n_pre
1786    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1787    o added [#include "AD_CONFIG.h"] to all files that use the following
1788      defines:
1789      - ALLOW_ADJOINT_RUN
1790      - ALLOW_TANGENTLINEAR_RUN
1791      - ALLOW_ECCO_OPTIMIZATION
1792    
1793    checkpoint51m_post
1794    o incorporating changes to get TAMC/TAF working in genmake2
1795      - added new TAMC/TAF targets to the Makefile
1796      - various cleanups related to package handling
1797      - these changes should have no impact on the forward model
1798    
1799    checkpoint51l_post
1800    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1801     - faster algorithm for cal_addtime.F
1802     - higher precision arithmetic, where needed
1803     - pkg/exf *startdate variables changed from calendar date to
1804       model integration time
1805    
1806    checkpoint51l_pre
1807    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1808    o enable to apply restoring on S & T only in a latitude band.
1809    o update output (external_forcing_surf modif. change truncation errors)
1810       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1811    
1812    checkpoint51k_post
1813    o change default to: useNHMTerms=.FALSE.
1814     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1815       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1816     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1817        exp1, ideal_2D_oce
1818     - change data file of oceanic exp (leave the results unchanged for now)
1819       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1820    o set gravitySign automatically according to the vertical coordinate used
1821      (and change sign: back to "logical" value: +1 when R increases downward)
1822    o added an include barrier to the default CPP_OPTIONS.h and
1823      removed the #include "PACKAGES_CONFIG.h" from it
1824    o fix a bug in mom_fluxform (from chk51j_post)
1825    
1826    checkpoint51j_post
1827    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1828    o adjusted some flow directives (dynamics, thermodynamics)
1829    o added cubed-sphere case to test cost function
1830    o heckpoint_lev?_directives.h now include
1831      pkg-specific directives, whenever those are enabled.
1832    o Moving pkg-specific flow directives to corresponding pkg
1833      Moving pkg-specific differentiation list to corresponding pkg
1834      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1835      ---> conventions are
1836           - pkg_ad.flow
1837           - pkg_ad_diff.list
1838           - pkg_ad_check_lev?_dir.h
1839    
1840    checkpoint51i_post
1841    o merge of the branch-genmake2
1842      - knowingly breaks the older genmake
1843      - automatic generation of all ALLOW_${PKG_NAME} defines
1844      - new testreport supersedes older testscript
1845    o large number of package inclusion and header cleanups
1846    checkpoint51i_pre
1847    
1848    o new output for adjoin of global ocean vector invariant
1849    o fix for checkpoint of thermodynamic seaice and bulk_force
1850    o Steph gchem various cleanups
1851    
1852    checkpoint 51h_pre
1853    o fixed some single quotes
1854    o modify gchem pkg to be more versatile
1855    o modifications to clean up dic pkg
1856    o add pkg/cfc
1857    
1858    checkpoint51g_post
1859    o provide links for ARPACK and ADM*TLM
1860    o start removing verification/vero/
1861    o update AD-related stuff
1862      (in particular some IF-statements in model/src/ routines)
1863    o adding to verification/global_ocean.90x40x15/ adjoint of
1864      vector invariant setup
1865    
1866    checkpoint51f_post
1867    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1868    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1869      of tracer Green's fucntions for ocean inversion project.
1870    
1871    checkpoint51f_pre
1872    o Added on-the-fly spatial interpolation capability
1873        "USE_EXF_INTERPOLATION" to pkg/exf.
1874      - This is a temporary Cartesian-grid hack until
1875        the super-duper ESMF coupler becomes available.
1876      - See verification/global_with_exf/README for usage example.
1877      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1878        flags and modified pkg/seaice accordingly.
1879    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1880        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1881        non-local transport term.
1882    
1883    checkpoint51e_post
1884    o pkg/mom_vecinv:
1885      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1886      - add time-ave diagnostic of vorticity advection.
1887    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1888    o atmospheric geopotential: - include water vapor effect;
1889                                - use p^kappa in p* scaling.
1890    o land pkg: read initial state from files.
1891    o AIM : add stratospheric drag in the upper level
1892    
1893    checkpoint51d_post
1894    o change function ILNBLNK (=> last non-blank char.) to return zero
1895      (instead of the string length) when the string. char is empty
1896    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1897    o modif's to restore TAMC compatibility
1898      - avoid "_d" constructs in PARAMETER declarations
1899      - avoid interrupting lines by comment lines
1900    o Use cluster local disks for purely local I/O
1901      vs. globally visible disks needed for ctrl stuff
1902      (merged from ecco-branch)
1903      - new active_file_loc... and mdsio_..._loc routines
1904      - affected packages: autodiff, ctrl, grdchk, mdsio
1905    
1906    checkpoint51c_post
1907    o introducing integer flag debugLevel
1908      - debLevZero: suppress all output
1909      - debLevA: standard
1910      - debLevB: equivalent to current debugMode=.TRUE.
1911    o introducing pathname variable mdsioLocalDir for mdsio
1912      that can be specified at runtime
1913      (relevant for cluster I/O to local disk)
1914    `
1915    >>>checkpoint51b_post
1916    adjoint of ptracers
1917    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1918    o extended state in checkpoint_lev?, etc.
1919    o alternative ctrl/cost with tr1 or ptracer
1920    o new comlev1_bibj_ptracers
1921    o new ptracers.flow
1922    o made ptracers_forcing same as external_forcing_s
1923    o added verification for adjoint with ptracers
1924      - adm. grdchk fail so far
1925      - tlm. grdchk OK
1926      - checked tapelev/comlev recomputations: OK
1927    <<<checkpoint51b_pre
1928    
1929    checkpoint51a_post
1930    o added code for biogeochemistry package
1931      - new pkgs: dic, gchem
1932      - new subroutine in ptracers
1933    o modify code for biogeo packages
1934      - in model/src and pkg/ptracers
1935    
1936    checkpoint51
1937    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1938      - autodiff, ctrl, exf, grdchk, seaice
1939      kept separate packages
1940      - cost, ecco, obcs
1941    o updating verification/internal_wave, verification/lab_sea
1942      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1943    
1944    checkpoint50i_post
1945    o Preparing next differentiable checkpoint and sync
1946      of MAIN vs. ecco-branch
1947      - 1st step: this one is differentiable
1948      - 2nd step: next(! not this) checkpoint will have updated packages
1949                  from ecco-branch)
1950    
1951    checkpoint50h_post
1952    o new package "land": provide surface BC for AIM.
1953    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1954    o AIM: use true log-P extrapolation for near surface temp (= as in
1955        F.Molteni paper) ; update aim.5l_cs output.
1956    o New variable in PARM03 for more flexible pickups
1957    o somewhat cleaned package initialisation sequence for
1958      ctrl/ cost/ ecco/ in packages_... routines
1959    
1960    checkpoint50g_post
1961    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1962      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1963      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1964        made the default because of faster convergence than ADI
1965    
1966    checkpoint50f_post
1967    o exf totally restructured
1968      - replaced all exf_set_ routines by one generic exf_set_gen.F
1969        and made sure it's still differentiable
1970      - split exf_getffields.F into new exf_bulkformulae.F
1971      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1972      - updated adjoint/makefile and relevant verif. accordingly
1973    
1974    checkpoint50f_pre
1975     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1976          + change Evap over land. (update aim.5l_cs output)
1977     o added missing .cvsignores and made uniform across expts
1978     o changed configuration of tidal_basin_2d expt
1979     o added pkg/debug functions for tracing code in fatal crashes
1980     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1981     o new fn in pkg/monitor to stop model if solution grows too big
1982     o removed lots of single quotes from comments
1983    
1984    checkpoint50e_post
1985    o make KPP work with PTRACERS
1986     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1987       nearly a copy of kpp_transport_s
1988     - there is no analogue to SurfaceTendencyS, so I have to use
1989       gPtr(of the surface layer) instead
1990    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1991    checkpoint50e_pre
1992    
1993    checkpoint50d_post
1994    o change kpp output from multiple-record state files to single-record state
1995      files analogous to write_state.F
1996    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1997      analogous to the cg2d-related output.
1998    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1999      so that writing to internal file fn (with length 512) fails.
2000    checkpoint50d_pre
2001    
2002    checkpoint50c_post
2003    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2004    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2005    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2006    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2007    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2008    
2009    checkpoint50c_pre
2010    Merging from release1_p13:
2011    o bug fix for pkg/seaice dynamic solver
2012    o Added SEAICE_initialHEFF to pkg/seaice
2013    
2014    checkpoint50b_post
2015    o store u*,v* in gU,V instead of in guNm1,gvNm1
2016    o in order to put the momForcing out of the Adams-Bashforth:
2017      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2018      to timestep.F
2019    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2020    o re-generate output for highly sensitive test-exp:
2021       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2022    
2023    checkpoint50b_pre
2024    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2025    o corrected CPP option mismatch in exf_Bulk... functions for case
2026      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2027    
2028    checkpoint50a_post
2029    o Bug fix for merging between c50 and KPP.
2030      ikey was passed from thermodynamics to kpp_calc via
2031      common block rather than being recomputed in kpp_calc,
2032      in contradiction with new key itdkey.
2033      New key ikppkey created, and tamc.h headers updated.
2034    
2035    checkpoint50
2036    - 2nd step of merge with ecco-branch:
2037      merge changes in ecco-branch back into main trunk
2038    - bug fix in find_alpha
2039    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2040    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2041    - merged some sliced AD support routines
2042    
2043    checkpoint49
2044    merged from ecco-branch:
2045    o exf:
2046      - Enable initialisation of forcing fields to constant
2047        (runtime) values.
2048      - in exf_getffields.F
2049        Reduce i-/j-loop to interior domain, discarding overlaps.
2050        That also fixes wrong TAF-key computations for key_1, key_2
2051        with bulf formulae.
2052      - exf_init.F modify #ifdef for exf_init_evap
2053      - exf_getffieldrec.F, ctrl_getrec.F
2054        The following INT-usages are not safe:
2055          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2056          fldcount = int(fldsecs/fldperiod) + 1
2057        and were modified.
2058    o autodiff: checkpoint_lev...
2059      - updated storing for bulk formulae (some arrays were missing)
2060      - added state for seaice package
2061      - synchronized with main branch
2062    o DIVA:
2063      Modif.s in
2064      - the_main_loop.F
2065      - the_model_main.F
2066      and added cost_final_restore.F cost_final_store.F
2067      o With these changes, it is possible to fully separate
2068        the first forward run to compute the cost function (mdthe_main_loop)
2069        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2070        into separate model executions.
2071        This enables better tuning of DIVA to given queue sizes.
2072      o Loss of cost function value in consecutive DIVA runs is
2073        fixed by storing to 'costfinal' file.
2074      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2075        beginning/end of adjoint integration is accounted for.
2076      The current changes apply to TAF-1.4.26.
2077      TAF has one remaining bug, requiring one manual change
2078      (see MITgcm manual).
2079    o cal: synchronized between MAIN and ecco-branch
2080    
2081    checkpoint48i_post
2082    o Changes to restore differentiability of code w.r.t. previous tag
2083      (mostly adding new routines to make list and replacing
2084      pressure by totPhiHyd).
2085    o Updated and merged grdchk package
2086      - has both ADM and TLM checks
2087      - works for single- and multi-proc.
2088      - output cleaned
2089      - worked successfully for parallel DIVA
2090    o genmake:
2091      - Adding -platform=SP4
2092      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2093    o Modif. for DIVA:
2094      ctrl_unpack should not be called in intermediate DIVA interval.
2095      (similar thing would apply for active files such as
2096      tbar, sbar, psbar, which should not be reinitialised;
2097      only relevant for ecco-branch)
2098    
2099    checkpoint48h_post
2100    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2101    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2102    o Added SEAICE_initialHEFF to pkg/seaice
2103    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2104    
2105    checkpoint48g_post
2106    --- EOS:
2107    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2108      store total Potential in totPhyHyd for diagnostics & EOS.
2109    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2110    --- Pressure/geopotential gradient:
2111    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2112    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2113      ( changes results of global_ocean_pressure )
2114    o NLFS + z-coord.: add eta*Rho' contribution.
2115    o accurate phiHyd when using interface-W at the middle between 2 centers
2116     ( changes results of ideal_2D_oce )
2117    o includes r* 2nd term in potential gradient.
2118    
2119    checkpoint48f_post
2120    Merging from release1_p12:
2121    o Modifications for using pkg/exf with pkg/seaice
2122      - improved description of the various forcing configurations
2123      - added basic radiation bulk formulae to pkg/exf
2124      - units/sign fix for evap computation in exf_getffields.F
2125      - updated verification/global_with_exf/results/output.txt
2126    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2127      (SBO) core products, including oceanic mass, center-of-mass,
2128      angular, and bottom pressure (see pkg/sbo/README.sbo).
2129    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2130      to avoid negative values in shallow regions.
2131      - updated verification/natl_box/results/output.txt
2132      - updated verification/lab_sea/results/output.txt
2133    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2134    o Added useSingleCpuIO option (see PARAMS.h).
2135    o Updated useSingleCpuIO option in mdsio_writefield.F to
2136      work with multi-field files, e.g., for single-file pickup.
2137    o pkg/seaice:
2138      - bug fix in growth.F: QNET for no shortwave case
2139      - added HeffFile for specifying initial sea-ice thickness
2140      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2141    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2142      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2143    o pkg/seaice:
2144      - adjoint-friendly modifications
2145      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2146    
2147    checkpoint48e_post
2148    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2149    o dynamics: change definition of computational domain & adapt mom_fluxform
2150      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2151    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2152        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2153        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2154        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2155        inverted_barometer solid-body.cs-32x32x1
2156      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2157    
2158    checkpoint48d_post
2159    o in preparation for r*:
2160     a) use pre-computed gradient of hydrostatic potential:
2161        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2162     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2163        => affects results of glob_oce_pressure (different truncation error)  
2164      update output.txt of ideal_2D_oce & global_ocean_pressure
2165    
2166    checkpoint48d_pre
2167    o in preparation for r*:
2168      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2169      pass the 2 comp. of the grad. as arguments to momentum S/R.
2170      but for the moment, only used if it does not change the results.
2171    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2172    
2173    checkpoint48c_post
2174    Modifications in treatment of initial flux forcing controls
2175    to avoid extra storing of flux fields.
2176    
2177    checkpoint48c_pre
2178    o Added tidal_basin_2d experiment (currently 1D!)
2179    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2180    
2181    checkpoint48b_post
2182    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2183     (modification to pressure gradient not yet implemented)
2184    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2185      (for U & V) that are used for vertical advection of momentum.
2186    
2187    checkpoint48a_post
2188    o In preparation for r*, use temp. array to compute vertical transport
2189       in flux-form momentum pkg. => change results of few test-exp.
2190      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2191                        lab_sea, natl_box & plume_on_slope
2192    
2193    checkpoint48
2194    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2195    
2196    checkpoint47j_post
2197    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2198    o moved adexch from forward_step to addummy_in_stepping
2199    o added exch in ctrl_map_...
2200    o aveFreq.=0. at end of cost_final to avoid overwrite in
2201      reverse checkpointing loop
2202    o Yet more changes in gmredi:
2203      * adgmredi_calc_tensor
2204        avoiding all recomputation of gmredi_slope_limit
2205      * adgmredi_x/y/rtransport
2206        added flag for excessive storing to avoid recomp. of
2207        u/v/rtans, dTdx/y/z
2208        -> this is not really necessary and very memory-consuming
2209      * adgmredi_slope_psi:
2210        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2211      * gmredi_slope_limit
2212        re-activated full calculation of taperfct for case 'ac02'
2213    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2214    
2215    checkpoint47i_post
2216    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2217    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2218      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2219    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2220    o gmredi: fix few bugs.
2221    
2222    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2223    This will be a good checkpoint to plug into the ecco-branch.
2224    o few modif.'s to get latest version adjointed
2225      (mainly kick out code in ini_linear_phisurf)
2226    o modif's to run adjoint with exactConserv
2227    o case GM_BOLUS_ADVEC should be cleaned
2228      S/R gmredi_slope_psi should be cleaned
2229    o verification/carbon now has exactConserv=.TRUE.
2230    
2231    checkpoint47g_post
2232    o time-average AIM output: becomes independent from statvars time-average
2233      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2234    o After TAF bug fix:
2235      Tested adjoint of gmredi package.
2236      Tests were done with checkpoint47 rather than with latest
2237      checkpoint47f_post since the latter is broken for the adjoint
2238      verification/carbon/ contains both ADM and TLM gradient checks.
2239    Here they are, before they get changed/lost/stolen.
2240    Mostly modif.'s to fix numerical sensitivities.
2241    Gradient checks OK for
2242    - GM_taper_scheme:
2243      * clipping
2244      * ac02
2245      * linear
2246      * glw91
2247      * dm95
2248      * ldd97
2249    - GMREDI_OPTIONS:
2250      * GM_VISBECK_VARIABLE_K
2251      * GM_NON_UNITY_DIAGONAL
2252      * GM_EXTRA_DIAGONAL
2253      * GM_BOLUS_ADVEC
2254    in conjunction with data.gmredi parameters to be checked in
2255    in a few minutes under verification/carbon/code/
2256    
2257    checkpoint47f_post
2258    Merging from release1_p10:
2259    o modifications for using pkg/exf with pkg/seaice
2260      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2261        and SEAICE_EXTERNAL_FLUXES
2262      - pkg/exf CPP options EXF_READ_EVAP and
2263        EXF_NO_BULK_COMPUTATIONS
2264      - usage examples are Experiments 8 and 9 in
2265        verification/lab_sea/README
2266      - verification/lab_sea default experiment now uses
2267        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2268    
2269    checkpoint47e_post
2270    o created a tag prior to creating a branch
2271    
2272    checkpoint47d_post
2273    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2274      at the bottom boundary had an erroneous half slip boundary condition
2275    o added bottom drag and no slip boundary condition capabilities to
2276      oceanic pressure coordinates code
2277    o added new verification experiment global_ocean_pressure, this experiment is
2278      also described in the tutorial section of the manual
2279    checkpoint47d_pre
2280    
2281    checkpoint47c_post
2282    o Added a verification experiment for a global cubed-sphere ocean run
2283      -  verification/global_ocean.cubed32x32x30
2284      -  uses pkg/therm_seaice and pkg/bulk_forcing
2285    
2286    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2287    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2288      when using P-coordinate; only implemented for atmospheric config.
2289    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2290      NOTES: requires option NONLIN_FRSURF to be "#define".
2291    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2292    
2293    checkpoint47b_post
2294    Merging from release1_p9:
2295    o pkg/seaice
2296      - removed GOTO's and added taf directives
2297      - double precision constants to reduce the g77 (Linux)
2298        to F77 (SGI) differences reported in release1_p8
2299    o tools/genmake
2300      - added SGI options
2301    o verification/testscript
2302      - updated to that of checkpoint47a_post
2303    o verification/global_ocean.90x40x15/input/eedata
2304      - modified for SGI f77 compatibility
2305    o verification/lab_sea
2306      - added description of sea-ice model
2307      - added missing matlab routines
2308      - added test of thermodynamics parallelization
2309    
2310    checkpoint47a_post
2311    o new pkg: aim_v23
2312     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2313       for now, keep the same surface forcing as before.
2314     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2315     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2316     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2317    o add diagnostic of surface correction term in monitor output
2318    
2319    o bulk_force and therm_seaice
2320    - Two packages:  bulk_force (Bulk forcing)
2321      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2322    - Earlier integration from Stephaine Dutkiewicz
2323      and Patrick Heimbach.
2324    - Two ifdef statements for compile time,
2325       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2326    
2327    checkpoint47
2328    differentiable version of checkpoint46n_post
2329    o bug fix in quasihydrostaticterms
2330    o * "clean" adjoint code (in terms of extensive recomputations)
2331        can now be obtained for all GMREDI options (i.e. for
2332        - GM_VISBECK_VARIABLE_K
2333        - GM_NON_UNITY_DIAGONAL
2334        - GM_EXTRA_DIAGONAL
2335        - GM_BOLUS_ADVEC )
2336      * However, wrong gradient check problem remains unsolved.
2337      * New CPP options have been introduced for different
2338        tapering schemes
2339    o external_fields_load now part of differentiation list
2340    o pressure needs multiple storing;
2341      would be nice to have store_pressure at beginning or
2342      end of forward_step, e.g. by having phiHyd global (5-dim.)
2343      (NB: pressure is needed for certain cases in find_rho,
2344      which is also invoked through convective_adjustment).
2345    o recomputations in find_rho for cases
2346     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2347    o #define ATMOSPHERIC_LOADING should be differentiable
2348    o ini_forcing shifted to begining of initialise_varia
2349    o Incorporating QNVS line search routines into MITgcm
2350      (this is separate code, and therefore not under pkg)
2351      lsopt/, optim/
2352    o Updated verification/carbon/
2353      - #define GM_VISBECK_VARIABLE_K
2354      - GM_taper_scheme    = 'ldd97'    
2355    
2356    checkpoint46n_post
2357    Merging from release1_p8:
2358    o verification/natl_box:
2359      updating new external_fields_load routine
2360    o New package: pkg/seaice
2361      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2362      The sea-ice code is based on Hibler (1979-1980).
2363      Two sea-ice dynamic solvers, ADI and LSR, are included.
2364      In addition to computing prognostic sea-ice variables and diagnosing
2365      the forcing/external data fields that drive the ocean model,
2366      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2367      The implied surface heat flux is then stored in variable
2368      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2369      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2370      non-local transport term.  Because this call precedes model
2371      thermodynamics, temperature under sea-ice may not be "exactly" at
2372      the freezing point by the time theta is dumped or time-averaged.
2373      N.B.: fairly large differences in accuracy occur across
2374            different platforms/compilers; comparison between
2375            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2376            generated output gives:
2377       T           S           U           V
2378      C D M    c        m  s        m  s        m  s        m  s
2379      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2380      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2381      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2382    
2383      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2384    o GAD:
2385      - generated new common blocks to account for call of
2386        same gad routines with differing traceridentities
2387        (needed to modify tracerIdentity indices in GAD.h)
2388      - generated separate common blocks for case useCubedSphereExchange
2389        (Department of Futurology)
2390      - parameter lists to gmredi_?transport: added tracerIdentity
2391      - added new key indices to tamc.h
2392    o external_fields_load:
2393      - added this routine to TAF list
2394      - needed to make some common blocks global and additional storing
2395        along the same lines as exf package (checkpoint_lev?_directives.h)
2396    o exf:
2397      updated external forcing package
2398      - bug fixes carried over from ecco-branch
2399        (missing OBCS_OPTIONS.h in two routines)
2400      - enable easy to use "no forcing".
2401      - added exf I/O for atmospheric loading
2402      - added exf I/O for runoff data
2403      - transfered scaling between exf <-> MITgcm to exf namelist
2404    o Adding new verification experiment global_with_exf.
2405      This verification experiment is almost identical to the
2406      global_ocean.90x40x15 experiment, except that it uses
2407      the exf (and cal) package instead of the
2408      external_fields_load routine (cf README file).
2409    
2410    checkpoint46m_post
2411    o modified testscript to return -- when there are no lines of "%MON" output
2412    o added new flag "quasiHydrostatic" for QH mode
2413      and new routine quasihydrostaticterms()
2414    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2415      New routine: mom_u_coriolis_nh()
2416    o fixed sign of non-hydrostatic metric terms in u and v equations.
2417      Depend on correct sign of gravitySign.
2418    o added work.pc* to .cvsignore in aim directories using ifc
2419    o introduced flag for controllin non-hydrostatic metric terms
2420    o removed gravitySign from PARM04
2421    o switched to g77/ifc from pgf77 in aim experiments
2422    
2423    checkpoint46l_post
2424    o made convective adjustment work with pressure coordinates:
2425     - changed the direction of k-loop in convective_adjustment.F for the
2426       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2427     - adjusted the reference pressure k-index in convective_adjustment.F
2428     - adjusted the convection condition in convect.F (in analogy to
2429       calc_ivdc.F)
2430     - convective_adjustment no longer computes anything on the halos
2431     - removed the warnings about negative salinity from find_rho.F and
2432       find_alpha.F; instead the new routine look_for_neg_salinity, called
2433       at the beginning of find_rho, find_alpha, and find_beta, does a
2434       check of the entire slice, if CPP-option
2435       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2436    checkpoint46l_pre
2437    
2438    checkpoint46k_post
2439    o fixed the verification/global_ocean.90x40x15 experiment:
2440     - new bathymetry (the world according to A., JMC, and M.)
2441     - new initial fields and forcing fields (*.bin files)
2442     - new POLY3.COEFFS (for the next release one should switch to a full
2443       equation of state: JMD95P or MDJWF)
2444     - fixed several errors and redundancies in the data file
2445     - experiment uses looped cells
2446     - added matlab directory with diagnostic scripts for plotting of output
2447    
2448    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2449     - read AIM physics parameters from a file (data.aimphys)
2450     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2451    
2452    checkpoint46j_post
2453    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2454    o move wVel computation at the end of the time step, in S/R integr_continuity
2455    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2456    o update timeave pkg for wVel diagnostic.
2457    checkpoint46j_pre
2458    
2459    checkpoint46i_post
2460    o Clean up AIM package (and keep the results unchanged):
2461      include CPP_OPTION and use IMPLICT NONE in all routines ;
2462      declare all the variables _RL ; use _d 0 for all numerical constants.
2463      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2464    
2465    checkpoint46h_post
2466    o cleaned up the use of rhoNil and rhoConst.
2467      - rhoNil should only appear in the LINEAR equation of state, everywhere
2468        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2469        and the dynamical equations are all divided by rhoConst
2470    o introduced new parameter rhoConstFresh, a reference density of fresh
2471      water, to remove the fresh water flux's dependence on rhoNil. The default
2472      value is 999.8 kg/m^3
2473    o cleanup up external_forcing.F and external_forcing_surf.F
2474      - can now be used by both OCEANIC and OCEANICP
2475    checkpoint46h_pre
2476    
2477     Added code to convert surface volume flux (fresh water) into
2478     a mass flux when using P coordinates in the ocean (OCEANICP).
2479     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2480    
2481    checkpoint46g_post
2482    o Include a new diagnostic variable phiHydLow for the ocean model
2483      - in z-coordinates, it is the bottom pressure anomaly
2484      - in p-coordinates, it is the sea surface elevation
2485      - in both cases, these variable have global drift, reflecting the mass
2486        drift in z-coordinates and the volume drift in p-coordinates
2487      - included time averaging for phiHydLow, be aware of the drift!
2488    o depth-dependent computation of Bo_surf for pressure coordinates
2489      in the ocean (buoyancyRelation='OCEANICP')
2490      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2491        Theta, Salinity, and Pressure in the parameter list. This routine is
2492        presently contained in find_rho.F. This routine does not give the
2493        correct density for 'POLY3', which would be a z-dependent reference
2494        density.
2495    o cleaned up find_rho
2496      - removed obsolete 'eqn' from the parameter list.
2497    o added two new verification experiments: gop and goz
2498      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2499    checkpoint46g_pre
2500    
2501    checkpoint46f_post
2502    o Enable tangent linear (forward mode) gradient checks:
2503      - extended active file handling to g_... files
2504      - added TANGENT_SIMULATION to theSimulationMode
2505      - extended grdchk package accordingly
2506    o added tangent linear setup in verification/carbon/code_ftl
2507    o added adjoint setup in verification/front_relax/code_ad
2508    
2509    checkpoint46e_post
2510    o Added new equation of state -> MDJWF
2511      - EOS of McDougall et al., 2002, JAOT, submitted
2512      - caveat: the equation of state is only valid for a smaller (more
2513        realistic?) range of values than JMD95P/Z and UNESCO
2514      - added masks to the calculation of pressure in store_pressure
2515      - added more check values for density in check_eos (ini_eos.F), some of
2516        the old check values are out of the range of the MDJWF-eos, so don't
2517        expect perfect matches for those
2518    checkpoint46e_pre
2519    
2520    checkpoint46d_post
2521    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2522      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2523      case of pressure coordinates. eosType='JMD95Z' in
2524      combination with buoyancyRelation='OCEANICP' now causes an error.
2525    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2526      in find_alpha/beta.
2527    checkpoint46d_pre
2528    
2529    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2530      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2531    
2532    checkpoint46c_post
2533    o Changes necessary for ocean in p-coordinates
2534     -  Added new buoyancy relation = 'OCEANICP'
2535     -  Added new parameters = gravitySign (this used to be contained inside
2536        the factor dRdZ which I added when we first switched to R coordinates).
2537     X GM/Redi is not compatible (yet)
2538     X bottom drag and no-slip need to be debugged.
2539    checkpoint46c_pre
2540    
2541    checkpoint46b_post
2542    o Added new equation of state -> JMD95Z and JMD95P
2543      - EOS of Jackett and McDougall, 1995, JAOT
2544      - moved all EOS parameters into EOS.h
2545      - new routines ini_eos.F, store_pressure.F
2546    o Added UNESCO EOS, but not recommended because it requires
2547      in-situ temperature (see JMD95)
2548    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2549      unesco.f to be used with POLY3
2550    checkpoint46b_pre
2551    
2552    checkpoint46a_post
2553    o Added (atmospheric) pressure loading
2554      - new field in FFIELDS.h, etc...
2555      - new cpp flag ATMOSPHERIC_LOADING
2556    o Changed hFacC to _hFacC in calc_phi_hyd.F
2557    o Added SHORTWAVE_HEATING to some files for consistency
2558    checkpoint46a_pre
2559    
2560    checkpoint46
2561    further merges from release1_p5
2562    o new ctrl package
2563      - adopted from ECCO environment to enable optimization
2564      - added Eliassen Palm fluxes to controls
2565    o added Eliassen Palm flux controls to gradient check package
2566    o cost package
2567      - Compatible with new ctrl package
2568      - added Eliassen Palm cost hooks
2569      - modif's of existing cost functions
2570    o Adjoint-related bug fixes in kpp:
2571      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2572      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2573    o autodiff package
2574      - flow directives:
2575        + new for S/R do_the_model_io
2576        + enhanced for S/R checkpoint
2577        + new gmredi.flow
2578      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2579        disable adcommon.h/g_common.h by default.
2580      - fixed problem for adjoint of global_max
2581    o modified verification/carbon/
2582    o New setup for adjoint of global_ocean
2583    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2584    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2585    o incorporated hooks for sponge layer code (external_forcing.F)
2586    
2587    checkpoint45d_post
2588    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2589    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2590      (affects plume_on_slope "cg2d" output)
2591    o add new parameter deltaTfreesurf for free-surface time stepping
2592    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2593    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2594    o change phiMin in exp1 (to agree with documentation)
2595    o add new flags:
2596     - T,S forcing inside/outside Adams-Bashforth
2597     - turn off temp,salt advection and/or forcing
2598     - for each tracer, define internal flag for multiDimAdvection & A-B
2599    o monitor: change definition of KE to check conservation of Energy
2600    
2601    checkpoint45c_post
2602    o Removed f90 comments ("!")
2603    o Modified initialisations to enable exf package for MITgcm
2604      (without invoking ECCO_PACKAGE).
2605    o modifications to gradient check package (Martin Losch)
2606      - enable centered differences
2607      - modified format of standard output
2608    
2609    checkpoint45b_post
2610    o cleaned exchange calls in cg2d
2611    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2612    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2613      to configure barotropic setup (Martin Losch)
2614    o moved some initialisations within bi,bj loop in dynamics
2615      (TAF flow dependency)
2616    o in initialise_varia, moved call packages_init_variables
2617      before convective_adjustment_init
2618      (corresponding adjustment of TAF tape initialisation).
2619    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2620    
2621    checkpoint45a_post
2622    o compute Rho over the whole domain (extend iMin,jMin indices)
2623    o specific exchange for X-slice domain (case Ny=1)
2624    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2625    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2626    
2627    checkpoint44h_post = checkpoint45
2628    o Fix to restore differentiability:
2629      place at which packages_init_variables is called in
2630      initialise_varia is crucial for reverse control flow.
2631    o modifications in GMRedi to enable stable adjoint
2632      (corresponding modif's in thermodynamics, dynamics)
2633    o added missing hook for sponge layer code in external_forcing
2634    o modified test cost functions
2635    o storing in gad_advection (plus removal of write(0,*)!
2636    o missing headers TR1.h added in convective_adjustment routines
2637    o errorMessageUnit set non-equal zero in eeboot
2638      (conflict on some platforms, e.g. IBM SP3)
2639    o modified carbon verif.
2640    
2641    checkpoint44h_pre
2642    o vertical grid option: allow to put the Interface at the middle between
2643      2 cell-centers ; replace delZ in pkg/kpp by drF.
2644    o GM Advective form: Tracers are advected using the residual transport (=
2645      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2646    
2647  checkpoint44g_post  checkpoint44g_post
2648  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
2649    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

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