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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.733 by jmc, Tue Oct 17 19:08:57 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 clean-up multi-threaded problems (reported by debugger tcheck on ACES);
8      add (in global_with_exf/code) a version of EXF_INTERP_READ without
9      dynamical allocation (seems to work in multi-threaded).
10    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
11      single CPU io) so that TAF does not have to see EESUPPORT.h
12    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
13    
14    checkpoint58p_post
15    o obcs: stop if obcs is used with useCDscheme = .true.
16    o shelfice:
17     - fix a sign error so that no slip at shelfice interface works
18     - remove stop for combination non-hydrostatic code and shelfice. That does
19       not mean, that the results are correct, but at least they are numerically
20       stable
21    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
22    o added adjoint exch routined for all exch*3d* routines
23      and updated flow directives
24    
25    checkpoint58o_post
26    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
27      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
28    o change controling S/R for writing pickup file (new S/R do_write_pickup)
29      and clean-up reading/writing of pickup files.
30    o fix local version of read/write pickup (NH part) in rotating_tank/code
31    o simplify EXCH interface:
32     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
33     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
34    o added the regrid package
35    o shelfice:
36     - add a simple boundary layer scheme to reduce noise
37     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
38    
39    checkpoint58n_post
40    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
41       local variable (not in common block).
42    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
43      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
44      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
45        to work with SingleCpuIO.
46    o add "_d 0" to real constant of pkg/cfc subroutines ;
47       update exp. cfc_exemple & tutorial_cfc_offline output files.
48    o multi-threading and IO:
49      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
50        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
51      - barrier before and after reading.
52      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
53      - avoid using MDS_WRITELOCAL for LAND pkg output.
54      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
55        common-block variables ; Allows multi-threading with master-thread IO.
56    o change default MAX_NO_THREADS from 32 to 4 ;
57      and stop cleanly when MAX_NO_THREADS is too small.
58    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
59    
60    checkpoint58m_post
61    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
62       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
63    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
64       keep global_ocean.90x40x15 (for AD testing) with former secondary test
65       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
66    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
67        add MITgcm_tutorials (= code + all the tutorials)
68    o ecco, option to compute cost for total ssh (mean+anom)
69    o consistent with addition of ptracer and ssh in pkg/profiles
70    o profiles: adding ptracer and ssh
71    o testreport: change multi-test output-file name
72      (from output.txt.{name} to output.{name}.txt)
73    o profiles: now ok for mutli-tiles case
74    o seaice: add 4 parameters for different advection schemes for area,
75      (effective) seaice thickness, enthalphy, and snow height. Their default
76      is the standard parameter SEAICEadvScheme
77    o calc_gw:
78     - add cosFacU in zonal viscous flux (harmonic.visc.).
79     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
80       of tutorial_plume_on_slope.
81    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
82    o calc_gw: true flux-form, account for horizontal grid spacing.
83      update rotating_tank results, but not plume_on_slope (affected at
84      truncation level, 11 digits).
85    
86    checkpoint58l_post
87    o calc_gw:
88     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
89     - remove side-drag for now (need to fix it); update plume_on_slope results.
90     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
91    o commit code to make SST/SSS weights spatially variable
92      (based on either variable in-situ or variable initial T/S weights)
93    o pkg/ecco:
94      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
95        now based on horizontally varying weights wthetaLev, wsaltLev
96      * cost_averagesflags now returns year indices in addition to day, month
97      * sflux balance is performed on annual basis
98        (sflxumm, sfluxmm2, bal_sfluxmm)
99      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
100        including separate counting and multipliers
101    o pkg/rbcs
102      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
103    
104    checkpoint58k_post
105    o testreport:
106     - always build in dir. "build" (if not there, mkdir build instead of building
107       & running in input)
108     - run in dir run (if it exists), in build otherwise.
109     - call prepare_run (if input/prepare_run exists)
110     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
111    o pkg/exf modifications to interpolation and rotation routines for more
112       reasonable treatment of North Pole singularity: for tracers North Pole
113       value is set to northernmost zonal-mean value, for zonal velocity it is
114       set to zero, and for meridional velocity it is set to northernmost value.
115    o pkg/exf/exf_check_range.F
116     - add tile index to diagnostics and move stop statement to the very
117       end of the routine.
118    o pkg/diagnostics: (diagnostics_main_init.F)
119      define title of isomorphic variables according to the current config.
120    o pkg/thsice with pkg/seaice dynamics:
121    - fix domain of computation (interior only, required for exf) and do exchanges
122    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
123    o towards a standard way of dealing with multi-threading in MONITOR
124      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
125    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
126       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
127    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
128    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
129    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
130       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
131    o tracer advection:
132     - clean-up and simplify calc_common_factors.F
133     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
134       advection subroutine (but still not used within DST advection S/R)
135    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
136    
137    checkpoint58j_post
138    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
139      from file (collects calls previously in FORWARD_STEP)
140    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
141    o adjoint store dir. adjusted accordingly
142    o genmake2
143      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
144    
145    checkpoint58i_post
146    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
147      on wind stress (SEAICEstressFactor defaults to 1.)
148    o Total number of Timers is finite (<=40): comment out 2 non-essential one
149      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
150    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
151      on CS-grid: no longer loosing mass.
152    o exf & curvilinear-grid: no longer modify longitude xC & xG.
153    o pkg/ggl90: fix sloppy output and fix a bug
154    o pkg/seaice: added SEAICEuseEVPpickup parameter
155      - Set to false in order to start EVP solver with
156        non-EVP pickup files when using SEAICEuseEVP
157      - fix sign error in diffusion in seaice_calc_rhs
158    
159    checkpoint58h_post
160    * Modifications for bottom topography control
161      o replace hFacC by _hFacC at various places
162      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
163      o add non-self-adjoint cg2d_nsa
164      o update autodiff support routines
165      o re-initialise hfac after ctrl_depth_ini
166      o works for 5x5 box, doesnt work for global_ocean.90x40x15
167    * Adding verification for 5x5 box (4-layer) bottom topography control
168    
169    checkpoint58g_post
170    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
171       used for mean seasonal cycle, mean diurnal cycle); add an example
172       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
173    o pkg/ggl90:
174      - add parameter (minimum surface kinetic energy)
175      - fix bug (avoiding division by zero)
176    o couple pkg/thsice to pkg/seaice:
177      - modify advection in seaice to accomodate new scalar fields to be advected
178      - only muliDimAdection scheme work with seaice/thsice
179      - mapping of thsice-variables to seaice-variables, back and forth
180      - does not break the verification experiments, but does not give the
181        desired results either
182    o pkg/seaice
183      - make (default) second order advection a bit less confusing?
184    
185    checkpoint58f_post
186    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
187      to pkg/seaice):
188      - new routines thsice_map_exf and thsice_get_exf provide the interface
189      - add an additional formal parameter to thsice_solve4temp
190    o pkg/exf:
191      - add new fields wspeed, snowprecip (to be able to couple to thsice)
192      - correct Stefan-Boltzmann constant
193      - new parameter for longwave surface emittance
194      - separate some stuff from exf_bulkformulae into new routines  
195        exf_radiation, exf_wind
196      - add new parameters and constants: longwave emissivity for ocean, ice
197        and snow, evaporation parameters over ice
198      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
199        either wind from stress or stress from wind
200    o pkg/thSIce:
201    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
202    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
203       and THSICE_CALC_THICKN
204    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
205    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
206      to make debugging easier.
207    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
208    o pkg/bulk_force:
209      - clean-up comments and parameters ;
210      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
211    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
212      generate new output for test-experiment: aim.5l_cs.thSI
213    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
214      testreport accordingly
215    
216    checkpoint58e_post
217    o SEAICE_CGRID adjoint done
218    o R_STAR adjoint implemented.
219      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
220      * need to sort out init. of h0facc, etc.
221    o Make pkg/profile fully independent of ecco,cost, etc. stuff
222      to be able to use it in pure forward.
223    
224    checkpoint58d_post
225    o upgrade simple test-experiment to tutorial example:
226     step.1: duplicate the experiment and (step.2) will remove the old copy.
227      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
228      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
229      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
230      tutorial_global_oce_biogeo    <- copy of dic_example
231      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
232      tutorial_plume_on_slope       <- copy of plume_on_slope
233      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
234      tutorial_global_oce_optim     <- empty for now (David ?)
235      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
236     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
237    o correct a sign problem in cost_scat.F
238    o obcs and ptracers: fix boundary conditions for advections schemes
239      with larger stencil
240    o thsice adjoint: start
241    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
242      completeness
243    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
244      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
245    o ptracers adjoint:
246      * avoid extensive recomputatations
247      * fix missing re-init. of gptr (missed by TAF)
248    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
249      me to turn off the excessive output to STDOUT that this package produces
250    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
251      and add those terms in Vector-Invariant formulation.
252    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
253      if the control period (xx_hfluxperiod etc) is 0
254    o in profiles pkg, clean routines and fix details
255    o in ecco pkg, reading ssh data:
256      fix problem in case the model does not start at iter0=0
257    o fix mnc-pickup/restart for ptracers
258    o new package prifiles:
259      code to compute profile-based cost by Gael Forget
260      (modifs in ecco, ctrl, autodiff)
261    o Benign bug fix in initialization (spotted by M. Mazloff) of
262      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
263    
264    checkpoint58c_post
265    o adjoint: finish NLFS adjoint and provide reference output in
266      verification/global_ocean.90x40x15/results_ad_nlfs
267    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
268      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
269      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
270      with SEAICE_CGRID defined.
271    o move calendarDumps from "data" to "data.cal" and clean-up the code
272      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
273    o add useEXF & useCAL flags (for now, set in hard-coded way)
274    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
275      (were missing in NH mode, and wrong in quasihydrostatic mode).
276      waiting for Chris updated version of calc_gw to add those CALLs.
277    o fix bug in quasihydrostatic S/R ;
278      add a test for this option: global_ocean.90x40x15.qshyd
279    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
280      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
281    o add on/off flag useOffLine for package OFFLINE
282    o seaice:
283      - modify advection so that it works also on the C-grid
284      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
285        problem in multi-tile runs with C-grid
286      - add flags for clipping ice velocities and/or masking solver forcing
287      - fix drag (ocean on ice) formulation and a bug that caused noise in the
288        C-grid solver
289      - added a few comments to seaice_diffusion.F
290      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
291        are now exclusive)
292      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
293        required re-ordering the code a little:
294       + make DAIRN global variable (defined in SEAICE)
295       + move computation of the viscosities eta and zeta into a new separate
296         routine (because I need to recompute them in seaice_ocean_stress.F)
297    
298    checkpoint58b_post
299    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
300      update output.txt of exp. aim.5l_cs.thSI
301    o various mnc cleanups and improvements:
302      + shrink lookup tables by factor of ~4
303      + better error reporting when running out of lookup space
304      + able to handle longer path/file names (up to 500 chars)
305    o adjoint:
306      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
307      - TBD: "hidden" mom_vecinv recomp. in dynamics
308    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
309     (allow to differentiate between forcing components using new integer flags:
310      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
311     and add new flag to put Dissipation tendency out of Adams-Bashforth.
312    o ecco
313      - enable trend removal from SSH anomaly obs.
314    o adjoint
315      - a fix for PmEpR when #undef EXACT_CONSERV
316      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
317      - try to fix "hidden" recomp. in forward_step for NLFS
318        (NLFS seems broken sometimes after I checked it in)
319    o seaice:
320     - add c-grid version of the dynamic solver:
321       + three new routines that are the c-grid substitute lsr, dynsolver
322         and ostres
323       + put a few fields that were local to dynsolver into global common
324         blocks, so that I can move the computation of stresses etc into
325         seaice_lsr (saves coding but may break the adjoint).
326     - replace more hardwired parameters by runtime parameters
327     - add ice masks that mask the rhs of the implicit solvers where there
328       is no ice (commented out in seaice_dynsolver, because i am not sure
329       if this works properly), eventually this should replace the clipping
330       of ice velocities in seaice_dynsolver to +/-40cm/s.
331    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
332      include it only where its needed
333    o move balancing of fluxes before the call of external_forcing_surf
334    o seaice:
335      - correct units of turning angles (now they are really in degrees)
336      - move computation of GWATX/Y out of main routine into dynsolver
337      - initialize GWATX/Y in seaice_init
338    o Apply mask on Fresh-Water flux (needed for SSH forcing).
339      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
340    o seaice: add runtime flags for turning angles (default to zero)
341    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
342      and trend from exf forcing and ctrl control adjustments
343    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
344      (since checkpoint57x_post)
345    o change the default rotation period to 86164.s = the Earth rotation
346    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
347      and based on a reference stratification. Tested within hs94.cs-32x32x5.
348    o seaice advection: add code for choosing between the default (2nd order
349      central differences) and multiDim advection schemes provided by
350      pkg/generic_advdiff
351    o seaice:
352      - removed all references to SEAICE_GRID.h fields from
353        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
354        (cubed-sphere configuration will change a little)
355      - grid computations in seaice_init are obsolete now.
356      - cleaned up code a little so that is easier to read (hopefully).
357      - added new (better?) discretizations of default advection and diffusion
358        (turn on with SEAICEuseFluxForm)
359      - replace 1 in 3d global fields by kSurface in growth.F
360      
361    checkpoint58a_post
362    o seaice:
363      - bug fix in advect.F
364    o shelfice:
365      - separate shelfice load anomaly from pload (breaks with time
366        dependent forcing), => introduce constant field shelficeLoadAnomaly.
367        Its default is 0., but it may be computed more cleverly from (unknown)
368        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
369        done offline. A good approximation of the pressure load anomaly is
370        necessary to avoid large initial adjustment processes underneath
371        deep-reaching shelfice.
372      - small fix in ISOMIP shelfice_thermodynamics
373      - add more sophisticated thermodynamics of Hellmer (1989), this is
374        now the default
375      - give a few constants more intuitive names
376    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
377      if bulk formulae are used in long integration (especially EmPmR). Turn
378      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
379      if balancePrintMean, the imbalance that is substracted is printed to
380      STDOUT.
381    o fix bug (typo) in obcs_apply_eta.F
382    o add a new package shelfice which enables us to model the circulation
383      underneath shelf-ice with draughts of hundreds of meters.
384     - works
385     - to do: + include improved thermodynamics
386              + check whether kSurfC (from model/inc/SURFACE.h) can be used
387                instead of new field kTopC
388              + can we use topoFile, Ro_surf and existing code in ini_depth.F
389                instead of new field R_shelfIce and new code in ini_depth.F
390                and ini_mask_etc.F?
391              + adjust vertical mixing schemes?
392    o seaice pkg:
393     - add a cpp-flag to include a simple formula for a salinity dependent
394       freezing point of sea water at the surface
395     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
396       meridional stresses are now different (and hopefully correct)
397    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
398       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
399       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
400    o pkg/diagnostics: add options and parameters for regional-statistics
401       diagnostics ; define regions by reading a region-mask from a file
402       (might add other options later)
403    o pkg/bulk_force:
404     - add option and parameters to use AIM surface-flux formulae.
405     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
406       others forcing fields (defined in PARM05, parameter file "data") are loaded
407       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
408     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
409     - use the right EXCH call for uwind,vwind (to work on CS-grid).
410     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
411       and parameters (note: calcWindStress replaces .NOT.readwindstress).
412     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
413    
414    checkpoint58
415    o add "--embed-source" option to genmake2 which, when the supporting
416      tools can be compiled (as determined by genmake2) will turn on the
417      embed_files package which then embeds the entire MITgcm source code
418      (*.[fFhc] + Makefile) used for the build within the executable
419      - requested by CNH but off by default
420      - adds a paltry <9MB to the mitgcmuv executable in most cases
421      - only writes the output when useEMBEDSRC in eedata is true
422    o clean up 3-dim. relaxation codes:
423      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
424      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
425      * Thanks to Tom Haine for testing!
426    
427    checkpoint57z_post
428    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
429      affects output (@ truncation level) of exp. plume_on_slope ; updated.
430    o fix the pickup behavior for obcs in combination with ptracers
431    o fix a bug in ptracers_external_fields_load
432    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
433      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
434    o transfered surface NH pressure to eta field (if exactConserv).
435    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
436         and update lab_sea output.txt file.
437    o completing 3-dim. relaxation code: additional term
438         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
439      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
440      * At compile time, in "EXF_OPTIONS.h" set
441          #define  ALLOW_CLIMTEMP_RELAXATION
442          #define  ALLOW_CLIMSALT_RELAXATION
443      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
444          tauThetaClimRelax3Dim = 15552000.0,
445          tauSaltClimRelax3Dim  = 15552000.0,
446      * 3 cases:
447          1) Use a constant-in-time 3-dim. field
448          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
449          3) Real-time relax. to time-evolving prescribed field
450    o Adding Laplacian-type smoothness constraint on
451      initial and boundary (forcing) controls (ic, bc)
452      * enable at compile-time via
453        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
454      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
455      * Absolute scale somewhat unclear so far
456      * no area weighting was included since no other cost term does so far
457    
458    checkpoint57y_post
459    First step for a NLFS adjoint
460    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
461    o new init. routines for calc_r_star, calc_surf_dr
462    o still need to deal with ini_masks_etc
463    o testreport seemed happy
464    checkpoint57y_pre
465    
466    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
467    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
468    o add new offset feature to offline pkg (plus minor cleanup)
469    o cfc fixes for final year of integration
470    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
471      be in GCHEM_OPTIONS).
472    
473    checkpoint57x_post
474    o fix testreport Pb in multiple test experiment.
475    o cleanup our namelist syntax in verification:
476      - make it more F95 standards compliant (some work still needed)
477      - allows the vast majority of our tests to work with gfortran
478    o Non-Hydrostatic:
479     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
480     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
481    o Allow to apply AB on T,S rather than on AB(gT,gS):
482     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
483     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
484       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
485     - need a "clever" read_pickup to restart from the other AB formulation
486    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
487    o remove some unused variables (reduces number of compiler warnings)
488    o adjoint
489      * Disable useVariableViscosity for adjoint for time being
490        (there are a number of extensive recomputations)
491      * Initialize certain variables needed for adjoint
492    
493    checkpoint57w_post
494    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
495                 fix the singleCpuIO RS version of MDSWRITEFIELD
496       and add a WARNING if using globalFiles=T with multi-processors.
497    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
498      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
499    o tracer advection scheme:
500      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
501       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
502       was not very convenient).
503      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
504       (further tests needed for the implicit DST & Flux-Limiter schemes).
505    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
506      and sRef for convenience, handy, when you want to initialize
507      ptracers in a large domain with a constant non-zero value. Also,
508      untangle ptracers_init.F a little.
509    
510    checkpoint57v_post
511    o change dome exp. to use variable viscosity in side-drag terms.
512    o remove all the files from the cfc_offline test since they are now
513      incorporated into tutorial_cfc_offline which has been producing
514      identical results for a few days of testing
515    o add new parameter: sideDragFactor to enable half-slip-side BC
516      and change side-drag S/R to use viscosity from mom_calc_visc
517      (can switch back by setting sideDragFactor=0.); affects results at
518      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
519       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
520    o vorticity & strain are now computed without masking, to account for
521      no-slip-side BC in variable viscosity calculation ; mask is applied
522      anyway later on, before computing advection/coriolis terms.
523    o modify exp4 to test new obcs support for reading from external files
524      and for passive tracers
525    o fix behavior of ptracers_monitor when monitor output is written to a
526      netcdf-file; still not independent of monitor.F (writes in the same
527      file).
528    o change default value of tRef (put a uniform, meaningful value for ocean
529      & atmos) and initialize sRef (was missing, as Martin mentioned).
530    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
531      to be proportional to enstrophy dissipation length.  Thus,
532       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
533      This is now consistent with Smagorinsky and with the manual.
534    
535    checkpoint57u_post
536    o OBCS and PTRACERS: add open boundary support for passive tracers
537      - either use homogenous (pseudo) v.Neumann conditions or prescribe
538        OB-values from file; this is not different from the way theta and salinity
539        are treated
540      - however, Orlanski-radiation conditions are not supported, and the model
541        will stop if you use pTracers and Orlanski at the same time.
542      - beefed up the rountine obcs_external_fields_load: now only those open
543        boundary values are overwritten with values from files for which there
544        are really files, otherwise the OB-fields remain untouched. This makes
545        it possible to use different OBs at different ends of the domain (as
546        with EXF)
547    o reduce number of exch calls in shap_filt (s2).
548    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
549      truncation level) 4/5 MLAdjust test results (11&12 digits match).
550    
551    checkpoint57t_post
552    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
553    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
554      same truncation, independent of the face number: affects affects several
555      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
556    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
557      note that biharmonic viscosity + no-slip was not tested in any experiment.
558    o fix bug in non-linear free-surf side-drag ; generate new output for
559      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
560    o make mnc honor the writeBinaryPrec flag for most kinds of output
561    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
562    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
563      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
564    o add brackets in multi-terms sum to get same truncation, independent of
565      the face number (manage to get exactly same value of gU,gV at the cs-edge)
566      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
567    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
568      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
569      a maximum grid-scale Reynolds number.  Also, changes all length calculations
570      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
571      Suggested values of viscosity parameters found in mom_calc_visc.
572      Many new viscosity diagnostics available.
573    
574    checkpoint57s_post
575    o Add clearing-house for viscosity calculations, mom_calc_visc and
576      correct numerous bugs in LeithD and Smagorinsky discretizations.  
577      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
578      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
579      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
580      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
581      The Strain-Tension form is now called with useStrainTensonVisc=.true.
582      ViscAhStrain and viscAhTension are now retired.
583    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
584    o In response to JMC's bug report, genmake2 now ignores any soft-links
585      that it finds in the *current* directory when searching for files.
586      Soft-links found in any other source directories will still work as
587      they did before.
588    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
589      a C routine to unlimit the stack size
590    o mnc-ify pkg/aim snapshot vars
591    o mnc-ify pkg/land as requested by Daniel
592    o various changes to mnc including:
593      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
594      - output can now be grouped so that all files within a group
595          change the ITER portion of their names in lock-step together
596      - can now read ("global") PER-FACE (in addition to PER-TILE) files
597          and works with both EXCH1 and EXCH2 (but needs more testing)
598      - writing works for all verification test cases w/ g77 on Linux
599    
600    checkpoint57r_post
601    o make MNC variable initialization happen earlier
602    o add diagnostics for (almost) each term of the momentum Eq.
603    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
604    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
605    o remove MINIMAL_TAVE_OUTPUT option ;
606      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
607    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
608      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
609    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
610    o add time-dependent SST, SSS control
611    o cost terms in ecco/ modularized (new cost_generic.F)
612    o cost_averages routines are modularized (new cost_averagesgeneric.F)
613    o new infrastructure for seaice model vs. obs misfits in seaice/
614      * driver from the_main_loop.F is seaice_cost_driver.F
615      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
616      * gradient check in Exp. 6a of natl_box_adjoint/
617    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
618      (see README file)
619    
620    checkpoint57q_post
621    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
622    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
623      - bug was reported by Jean-Michel and Ian Fenty
624    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
625      update exp. cpl_aim+ocn output.
626    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
627      Needed for high-res. runs with large global files
628      to be able to limit tapelev size
629    o Changed some tests for adjoint:
630      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
631      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
632      * global_ocean.90x40x15/ back to default 3-level checkpointing
633    o Modifications to enable scripted COMMON to MODULE conversion
634      * verification/OpenAD/code/ has necessary scripts and description;
635      * converts, compiles and runs successfully;
636    
637    checkpoint57p_post
638    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
639    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
640      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
641    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
642    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
643      (was already the case for dissipation with mom_vecinv,
644       and also the case for grad.PhiHyd when staggered-timeStep)
645      This will allow to put dissipation out-off the AB time-stepping.
646     Unfortunately, affects truncation error. Update output of exp. that "fails"
647      (cg2d matching number) and leave the others for later: front_relax(10),
648      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
649      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
650    
651    checkpoint57o_post
652    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
653      (2) its ready to be documented during the 20050801 DocFest
654    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
655      for ideal_2D_oce and lab_sea on linux_ia32_g77
656    o set to #undef CTRL_SET_OLD_MAXCVARS_30
657      in global1x1_tot/code_seaice_adj to access indices 32, 33
658      (worth another tag)
659    
660    checkpoint57n_post
661    o adding precip control xx_precip 32
662    o adding swflux control xx_swflux 33
663    o Replacing 10 forcing penalty cost routines by 1 generic.
664    o Implementing partitioning in time-mean and variable adjustment
665      for atmos. state.
666    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
667    o in natl_box_adjoint:
668      * updated exp 1 to 10
669        (but does not have time-mean vs. variable split results yet)
670    o updated global1x1/*_seaice_adj/
671      to incorporate latest changes
672    o enable useSingleCpuIO for mdsio vector routines
673      (applies in particular to tapelev I/O)
674    o removed inefficient K-loop in all active_file*control*.F
675    
676    checkpoint57m_post
677    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
678      and advect_cs (use EXCH-2 and standard cs-32 grid files).
679    o pkg/exch2: filling of face-corner halo regions is optional
680      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
681    
682    checkpoint57l_post
683     tag before updating tutorials (pre-release-2)
684    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
685       for output and interpolation of input fields onto model grid)
686    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
687       Affects results of exp. rotating_tank ; update output.txt.
688    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
689          and taking the square quantity and/or using a fraction-weight field.
690    o fix aim_diagnostics_init.F mate numbers.
691    o add mnc output capability to diagnostics/diagstat and update
692      our cvsignore files for the ACSII output generated
693    
694    checkpoint57k_post
695    o lab_sea now uses diagnostics package and provides a suite of
696      new EXF diagnostics output.
697    
698    checkpoint57j_post
699    o exf
700      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
701        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
702        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
703      * extended diagnostics output
704        - now includes all EXF variables
705        - hs, hl moved to common block
706        - separate S/R for diagnostics, called after ctrl vector is added
707        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
708        - EXFqnet contains true Qnet (i.e. includes qsw)
709      * updated verif. lab_sea, global_with_exf
710      * Rearranging hflux (exf_mapfields -> exf_getforcing)
711        to ensure that diagnostics sees a true EXFqnet
712    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
713    o diagnostics pkg: change pointers so that 1 diagnostic can be used
714      several times with different frequencies.
715    o mnc-ify the thsice package as requested by Daniel Enderton
716      - the monitor--MNC output needs work
717      - many attributes need to be added (most are currently blank)
718    o mnc-ify theaim_v23 package as requested by Daniel Enderton
719      - many attributes need to be added (most are currently blank)
720    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
721    o add Sadourny like discretization to the 4th.O vorticity advection scheme
722    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
723      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
724         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
725    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
726     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
727    
728    checkpoint57i_post
729    o Diagnostics package was changed: diagnostic allocation is now deactivated
730      by setting an empty file name in the namelist (used to be by setting 0 frequency)
731    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
732      add 1rst Order upwind vertical Shear.
733    o add a quick fix for A/B checkpointing in OFFLINE mode
734    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
735      end-run around the C/Fortran linking horror in eesup/src/timers.F
736    o added pkg/runclock: allows user to terminate run based on wall clock
737    o added non-hydrostatic scaling parameter: nh_am2
738    o pkg/my82: futile attempt to make results compiler-independent by adding
739      some "_d 0", etc. no effect.
740    o for mnc output, fill the 'T' coordinate var with myTime and create a
741      separate 'iter' variable for iteration count
742    o pkg/diagnostics:
743      add new capability: output of Global/Regional & per-level statistics ;
744      tested against monitor output (including land & thSIce) on various exp.
745    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
746    
747    checkpoint57h_done
748      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
749      data.diagnostics, data.gchem, data.ptracers) is done.
750    
751    o pkg/diagnostics: prepare for Global/Regional statistics.
752      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
753    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
754      and rename it: DIFFERENT_MULTIPLE
755    
756    checkpoint57h_post
757    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
758    o pkg/diagnostics: change output frequency, now in seconds (instead
759      of Nb of iterations). This requires to change data.diagnostics.
760    checkpoint57h_pre
761    
762    o in mnc, let the user create the output dir if both mnc_outdir_date
763      and mnc_outdir_num are false
764    o add fflags() to pkg/diagnostics which allows one to specify, on a
765      per-file basis, the file precision [default behavior is unchanged]
766    o added diagnostics to pkg/kpp, including computation of mixed layer
767      depth based on a temperature/density criterion
768    o updated verification/natl_box to test the new pkg/kpp diagnostics
769    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
770    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
771    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
772      not mnc -- this mistake was found by JMC and is now corrected
773    
774    checkpoint57g_post
775    o add Adams-Bashforth 3rd Order time stepping:
776      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
777      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
778    checkpoint57g_pre
779    
780    o make lambda[Theta,Salt]ClimRelax spatially varying
781      (default remains spatially uniform constant based on tau)
782    o added new control variables
783      * init. uVel, vVel, etanN
784      * lambda[Theta,Salt]ClimRelax
785    o separate masks used for ctrl_pack/unpack 'from write_grid' output
786      (suggested by G. Forget)
787    
788    checkpoint57f_post
789    o add parameter "baseTime" = model base time = time at iteration zero
790      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
791      account for baseTime shift
792    o move Coriolis arrays from PARAMS.h to GRID.h
793    checkpoint57f_pre
794    
795    o mnc-ifying the seaice package
796    o introduced an alternative length scale calculation for use in the limiting
797      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
798    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
799    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
800      as well as grad(vort3).  Made it compatible with both approximate form
801      for the cubed sphere and full form of these gradients.  Added flag
802      useFullLeith to select between approximate and full form.  
803    o add "d0" in getcon.F to reduce differences between compilers/platforms
804      update output.txt of exp. fizhi-gridalt-hs
805    o change port_rand funtion to allow to set the seed.
806    o fix obscure MNC bug involving conversion between reals and integers
807      - it caused no problems with certain (eg. gcc, ifc) compilers but the
808        new version is now more standards-compliant
809    o adjoint-related modifications
810      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
811      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
812      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
813    
814    checkpoint57e_post
815    o Adding eddy stress controls a la Ferreira et al.
816    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
817    
818    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
819      update output.txt of exp. fizhi-gridalt-hs
820    o add more "Z" dimensions and associated coordinate vars to MNC
821    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
822    o parameter calendarDumps: when set, approximate months (30-31 days) and years
823      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
824      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
825      months and years.  Requires pkg/cal.
826    o diagnostics: add pickup functionality
827      - off by default for backwards compatibility
828      - current version only uses MDSIO -- MNC will be added
829    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
830    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
831    
832    checkpoint57d_post
833    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
834    o modify verification/ideal_2D_oce so that it tests the creation of mnc
835      output from the diagnostics package
836    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
837    o make genmake2 more portable by using ".$FS" instead of ".f" for more
838      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
839    o add coordinate variables to the MNC output from the diagnostics package
840    o change MNC-flags default value: true when useMNC=TRUE
841    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
842      the ability (off by default) to read the grid information using MNC
843    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
844    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
845    o do snap-shot diagnostics at the middle of the time-interval (instead of
846      at the end).
847    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
848      new test for AIM with thSIce + slab-ocean
849    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
850    o move state variable diagnostics to the beginning of the time step ;
851      (note: still needs some work specially for snap-shot diagnostics)
852      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
853    
854    checkpoint57c_post
855    o Change testing option (-ieee) to get closer agreement between g77 & ifort
856    o generate new output.txt files on faulks with g77 & the new -ieee option
857    checkpoint57c_pre
858    
859    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
860      update output.txt of exp. global_ocean.90x40x15
861    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
862      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
863    o add saltFlux(+File) forcing capability with periodicExternalForcing
864    o allow to use pkg diagnostics for GM-Redi & ThSIce output
865    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
866    o improvements for the MNC output from DIAGNOSTICS:
867      - correct handling of the unlimitied dimension
868      - all dims now have associated coordinate variables
869      - variables located at U, V, and Corner ("Z") points are now written
870        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
871        *all* data points are output
872    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
873    o added pkg/seaice/seaice_monitor.F
874    o mdsio_readfield.F can now read files visible only to master MPI process.
875    o pkg/seaice: some test code for ice-modified ocean stress
876    o exf_getffields interpolation defaults to bilinear for all scalar forcing
877      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
878      spurious negative numbers for precipitation and humidity.  Will cause
879      some small numerical differences for integrations using pkg/exf/exf_interp.F.
880    o pkg/ctrl/
881      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
882        May be enabled via doPackDiag
883      *  introduce z-scaling of
884         + gradient (doZscalePack) and
885         + control (doZscaleUnpack)
886    o pkg/mdsio/
887      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
888      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
889    
890    checkpoint57b_post
891    o simplify options in diagnostics_fill arguments (remove weird combinations)
892    o fix MNC coordinate variables so that they now contain per-face index
893      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
894      general, EXCH2 grids are only aligned to a "local" coordinate system
895    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
896    o Implement instantaneous output within pkg diagnostics:
897      setting a negative frequency in data.diagnostics produces
898     "snap-shot" output (as opposed to time-average if freq > 0)
899    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
900      NOTE: change ptracer diagnostics name: use 2 characters to work with
901            more than 9 tracers. Add also diagnostics of advect & diffus flux.
902    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
903      becomes the coordinate variable for the 'T' dimension
904    o add CF-style coordinate variables to MNC
905      - just a first cut:  numbers are meaningless on the cubesphere and
906        missing along the T axis but otherwise it works!
907    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
908    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
909    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
910      this is based directly on what the model compute, so that the content of
911      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
912    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
913    o clean up build options files for SunOS, in particular
914      - remove -traditional from xmakedepend
915      - change -xarch=v9 to -xarch=native for f77
916      - restore use of make (not gmake)
917      - add CC=gcc if using g77
918    o changes per discussion of AM, JMC, & EH3 today:
919      - move redundant "grid" variables out of "state" -- in preparation of
920        creating proper CF-style coordinate variables and in recognition
921        that any/all grid variables can be easily copied (eg. w/NCO) from
922        the grid files into any of the other NetCDF files
923      - *always* output grid variables with MDSIO (this will eventually be
924        changed)
925      - output MNC grid file if useMNC is true
926    o every instance of _END_MASTER() has been found and replaced with
927      _END_MASTER( myThid ) in order to satisfy certain picky Sun
928      preprocessors
929    o re-arrange diagnostics pkg initialisation:
930     - allow each package to extend the available diagnostics list
931     - add some checking and fix small problems (multi-threaded, ...)
932     - new S/R diagnostics_fill (replace fill_diagnostics):
933       look through the short list of active diag. (instead of the long list)
934       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
935    
936    checkpoint57a_post
937    o this set of changes restores TAMC compatibility
938      tested for global_ocean.90x40x15 adjoint on trough
939      (what a pain)
940    
941    checkpoint57a_pre
942    o some modifs in tools/build_options for sunos
943    o call ctrl_pack for ctrl at end for optimcycle=0
944    
945    checkpoint57
946    o add horizontal bi-harmonic viscosity for vertical velocity
947      - new parameter viscA4W (defaults to viscA4)
948      - affects only non-hydrostatic code
949      - to be done: no-slip lateral boundary conditions
950    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
951    o implement Implicit Vertical advection for pTracers
952    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
953      (implemented also for implicit vertical diffusion & advection)
954    o OBCS: extend application of tracer open boundary conditions
955      to a strip beyond the boundary of width Olx/Oly
956    o add call monitor to TAF set of required calls (flow directives)
957      and include in natl_box_adjoint
958    o untangle a few ifdefs related to cost, ctrl, autodiff
959      untangel a few ALLOW_ECCO_OPTIMIZATION
960    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
961      (theta2, salt2 in ecco_cost_weights)
962    
963    checkpoint56c_post
964    o OBCS as control variables
965      - update ctrl_ad_diff.list, obcs_ad_diff.list
966      - remove balance of obcs controls from default
967      - fix index bug nobcs in ctrl_init
968      - fix dummy fields filen in ctrl_pack
969      - add dummy weights for obcs
970    o lsopt: comment out fort.94 output
971    o optim:
972      - remove unnecessary header files
973      - adjusted namelists
974      - add xerbla.F to Makefile
975    o exf:
976      - multiple modifications of exf_check_range
977      - unit change in exf_init_runoff from [m/year] to [m/s]
978    o mdsio:
979      - i/o-vector change debugLevel from debLevA to debLevB
980    
981    checkpoint56b_post
982    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
983      is called from DO_THE_MODEL_IO
984      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
985      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
986      - clean up PTRACERS_WRITE_TIMEAVE a little
987    o add another verification experiment that tests both the cfc-pkg and
988      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
989      reactive tendencies treated inline with regular timestepping
990    o testreport previously did a lousy job of comparing small numbers, so
991      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
992      implemented in the little c-progam tmp_cmpnum.c which is embedded in
993      testreport.
994    o ptracers_monitor: bug fix for MPI
995    
996    checkpoint56a_post
997    o GCHEM: finish reorganizating the package
998      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
999        (introduces another 3D-array for each passive tracer, but only if
1000        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1001        gchemTendency is not needed because the timestep is done separately)
1002      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1003      - GCHEM is now---more or less cleanly---separate from PTRACERS
1004      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1005        so clear to me how that should be done in a general way.
1006    o CFC: improve formatting of output in CFC_ATMOS
1007    o PTRACERS:
1008      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1009        that ALL experiments with ptracers enable can be checked. This makes
1010        GCHEM_MONITOR obsolete.
1011      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1012        monitorFreq
1013      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1014    o add PTRACERS (PTR0[1-5]) to testreport output
1015    o exf_check_range:
1016      * default changed to .TRUE.
1017      * will check values for niter0 if debLevA, every timestep if debLevB
1018      * STOP in exf_check_range if 'out of range'
1019      * range chosen generous to allow for potential extema
1020      TBD: a version with stricter range
1021           permitted range would be runtime parameters
1022    o GMredi:
1023      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1024      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1025      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1026    o GCHEM:
1027      - move call to GCHEM_FORCING_SEP, so that it is now called before
1028        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1029      - introduced a useGCHEM runtime flag and applied it everywhere.
1030      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1031        this flag is now only visible within GCHEM-pkg routines.
1032      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1033        be replaced by a 3D array that is computed before thermodynamics; for
1034        this, the tracer ID iTracer had to be included into the parameter list
1035        of ptracers_forcing
1036      - set up forward_step to call gchem_forcing, that will replace
1037        gchem_forcing_int in ptracers_forcing
1038      - cleaning up
1039    o small cleaning of exch2: remove files that are also in eesupp/src
1040    
1041    checkpoint56
1042    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1043    o mnc: cleanup "full" files--fixes out-of-memory problem
1044    o ECCO-GODAE
1045      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1046      * fully merged and updated from SIO code
1047        windstress sign change affects
1048        - exf_inscal_[u/v]stress
1049        - sign of xx_tau[u/v] adjustments
1050        - signs in cost_scat
1051      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1052      * natl_box_adjoint updated and compressed
1053      * 2-level checkpoint switch added
1054        (tested in EXP. 1 of natl_box_adjoint)
1055      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1056    o SVD
1057      * first complete, non-hacked version for SVD calculations
1058      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1059        performed via direct access files admtlm_vector.it????
1060        (via ctrl_[un]pack)
1061      * optimcycle is used for ARPACK iteration counter
1062        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1063      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1064        and add linear transforms where necessary
1065      * controls are initial/final SST, SSS (can be extended; need to check
1066        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1067    o mdsio: filename info to both stderr, stdout
1068    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1069      from sign change
1070    
1071    checkpoint55j_post
1072    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1073      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1074    o add consistent build directories and .cvsignore files to verification
1075    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1076    o make all subroutines 30 or less characters in length for certain older
1077      compilers to work (a thorough search only turns up two routines in
1078      pkg/ptracers)
1079    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1080      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1081    
1082    checkpoint55i_post
1083    o change arrays for total vertical diffusivity (2.D if explicit,
1084      3.D if implicit) ; each ptracer uses its own background value.
1085    o added mnc/NetCDF output capability to ocn_compon_interf
1086      - added bits to verification/cpl_aim+ocn so that it can run on
1087        ITRDA and other clusters without the mpirun "-wd" option
1088    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1089      configuration
1090    o give MNC the ability to create additional files rather than
1091      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1092      - the default is just less than 2GB which is a practical limit
1093        on many systems
1094    o Compute the non-local term using either KPP vertical diffusivity (=default)
1095       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1096    
1097    checkpoint55h_post
1098    o add verification test "vermix"
1099    o remove all the *_ioinc flags and replace with the single global
1100      outputTypesInclusive flag
1101    o allow to set a vertical profile of vertical diffusivity for T & S
1102    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1103    o useMNC moved from data.mnc to data.pkg
1104    
1105    checkpoint55g_post
1106    o Renaming carbon AD experiments to comply with testreport conventions
1107    o Updating adjoint of Held-Suarez hs94.1x64x5
1108    o Fixing directives for non-ECCO forward_step, after ECCO directives
1109      have been fixed to avoid recomp. of do_oceanic_phys
1110      Works well for global_ocean.90x40x15,
1111      but recomp. issue remains for carbon
1112    o Updating adjoint output for natl_box_adjoint after
1113      pkg/ecco has been modified (see taga c55d_post)
1114    
1115    checkpoint55f_post
1116    o rename to timeave_init_fixed
1117    
1118    checkpoint55e_post
1119    o some delicate re-shuffle of store directives to avoid one
1120      extra call of do_oceanic_physics
1121      affects ecco_the_main_loop.F, do_oceanic_physics.F
1122      checkpoint_lev1_directives.h
1123    o NB: this may break global_ocean adjoint temporarily,
1124      but it is clear how to fix it. Will do later, need this now.
1125    
1126    checkpoint55d_post
1127    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1128    o ecco_cost_weights is modified to 1x1 runs
1129    o modifs to allow observations to be read in as
1130      single file or yearly files
1131    o enable to read exf forcing fields as either
1132      single file or yearly files (flag useExfYearlyFields)
1133    checkpoint55d_pre
1134    
1135    o switch between 2-level and 3-level checkpointing
1136    o add ability of MNC to write local and "partial" (eg. 2D slices where
1137      the full 3D field is never actually stored) arrays to NetCDF files
1138      with the correct (that is, the complete multi-dimensional) set of
1139      array indicies
1140      - used in mom_vecinv() to write the diagFreq output
1141      - tested (demonstrated) in verification/aim.5l_cs
1142    o further mnc-ification
1143      - add verification/lab_sea to the list with mnc setups
1144      - fix undefined mnc v-names in cd_code
1145      - add kpp to mnc output (both snapshot and timeave)
1146    o non-hydrostatic code
1147      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1148        in calc_gw.F
1149      - defaults to viscAh
1150      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1151        friction or Leith) in non-hydrostatic mode, as long as there is
1152        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1153    o pkg/cost
1154      extend simple cost functions to treat time mean quantities
1155      (T,U,V) via cost_accumulate_state from cost_tile
1156    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1157        be 2 times larger than the minimum size the advection scheme requires.
1158        now get a perfect conservation of salt in advect_cs test-exp (updated)
1159    o GGL90 (Gaspar's TKE mixed layer)
1160      - add horizontal diffusion of TKE, requires exchanges in
1161        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1162        default. In OPA there is no horizontal diffusion of TKE but the
1163        mixing coefficients are computed from a horizontal average of TKE of
1164        6 points or so. I think that diffusion has a little more physical
1165        justification.
1166      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1167        was in vain)
1168      - mask tke-variable in ggl90_init
1169    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1170    o fix biharmonic diffusion on CS-grid.
1171    o more obcs stuff
1172      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1173        for reading boundary values. This routine is called from
1174        obcs_prescribe_read
1175      - updated obcs_check
1176      - changed sponge layer relaxation parameter units for days to seconds
1177      - turned off sponge layer by default
1178      - changed argument list of OBCS_CALC to myTime+deltaTclock
1179      - fixed about 35 bugs in obcs_external_fields_load
1180    
1181    checkpoint55c_post
1182    o obcs stuff
1183      - new runtime flags useOBCSprescribe, useOBCSbalance
1184      - re-arranged obcs_calc
1185      - moved exf_getobcs to obcs_prescibe_read
1186        obcs_prescibe_read is called after ORLANSKI stuff
1187        and independent of it (executable can contain all).
1188      - updated obcs_check
1189      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1190        These may be necessary only if tangential velocities are
1191        prescribed at OB, not sure, needs testing.
1192    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1193      which simplifies the calls and passes the ifc check-bounds test
1194    
1195    checkpoint55b_post
1196    o add a 2D scalar, Z location, exchange_2 routine.
1197    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1198      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1199      affects advect_cs results (for the wrong reason): update output.txt
1200    o use a more standard discretization for biharmonic viscosity ;
1201     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1202      affects results of dome set-up: update output.txt
1203    o fix gad_advection.F (CubedSphere part), back to version 1.23
1204    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1205    
1206    checkpoint55a_post
1207    o merged code to
1208      * prescribe/read time-dependent open boundaries
1209        (works in conjunction with exf, cal)
1210      * sponge layer code for open boundaries
1211      * each boundary N/S/E/W now has its own CPP option
1212        (healthy for the adjoint)
1213    
1214    checkpoint55
1215    o up-to-date adjoint of previous breaks
1216      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1217      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1218      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1219      - carbon: * remove tr1-related adjoint verification
1220                * add ptracer as control variable
1221    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1222      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1223    
1224    checkpoint54f_post
1225    o in verification/carbin/ remove experiment related to
1226      ALLOW_PASSIVE_TRACER (array tr1 etc)
1227      code_ad/ input_ad/ results_ad
1228    
1229    o add two new packages
1230      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1231        + subject to optimization (memory)
1232      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1233        + subject to reordering (many GOTOs in the original code)
1234        + so far opps is called for every (i,j) point, and then operates in
1235          the vertical; one may want to reorder the scheme in order operate in
1236          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1237          fields)
1238    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1239      - all verification tests compile and run with linux_ia32_g77
1240      - defaults are compatible with current input files--nothing
1241        should change if you were not previously using MNC
1242      - MNC output has been added in numerous places (eg. timeave)
1243        but there are still a few writes not yet do-able with MNC
1244        (this is in progress)
1245      - flags now allow for either/or/both use of MDSIO and MNC and
1246        documentation will soon follow
1247      - numerous small formatting cleanups for ProTeX
1248    o add version info (via BUILD_INFO.h) to MNC and stdout
1249    
1250    checkpoint54e_post
1251    o add two new packages
1252      - pp81 (Packanowski and Philander, 1981), Richardson number and
1253        stratification dependent mixing
1254      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1255      - these scheme operate in a similar manner as KPP (without ghat, of
1256        course), however there is only one diffusivity that is used for both
1257        temperature and salinity (and passive tracers)ç
1258    o add offline package
1259    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1260      provided by Stephanie Dutkiewicz
1261    o genmake2: add ability to search for C compilers and cleanup test output
1262      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1263    
1264    checkpoint54d_post
1265    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1266    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1267      leading to additional shift by 5 days each year of integration
1268       (i.e. leading to considerable offset over the years)
1269    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1270    o start with no AB and no initial filtering (staggerTimeStep):
1271      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1272    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1273      (external loading & cpl import/export stay in forward_step.F)
1274    o update coupling interface to work with new staggerTimeStep
1275    o change MDSIO ptracers_pickup.
1276    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1277    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1278    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1279    
1280    checkpoint54c_post
1281    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1282      this affects (truncation error) output.txt of test-exp:
1283       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1284    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1285    o change Qnet to always be the net heat flux, (+upward).
1286      affects (truncation error) output of natl_box exp.: updated
1287    o define the max number of passive tracers in PTRACERS_SIZE.h
1288    o start to test mnc routinely in exp0
1289    o add sea-ice loading (sIceLoad) as a new forcing field.
1290    
1291    checkpoint54b_post
1292    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1293       impressive on Altix and Opteron systems)
1294    o diagnostics can now write NetCDF files through the mnc package
1295    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1296    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1297    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1298      affects (truncation error) output of lab_sea & natl_box exp.: updated
1299    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1300    
1301    checkpoint54a_post
1302    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1303    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1304    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1305    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1306      + internal_wave (shift in writing cg2d_ini_res)
1307    checkpoint54a_pre
1308    
1309    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1310      - modified verification/lab_sea and natl_box_adjoint accordingly
1311    
1312    checkpoint54
1313    checkpoint53g_post
1314    o prepare splitting of thermodynamics: store convect.counter in common block
1315    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1316      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1317    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1318    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1319    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1320    o restore adjointability
1321    
1322    checkpoint53f_post
1323    o modifications that affect AIM experiment results (update output.txt):
1324      - no advection of S at top interface Nr (pkg/generic_advdiff)
1325      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1326    o AIM pkg:
1327      - include stability function into surf.Flux derivative relative to Tsurf
1328      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1329    
1330    checkpoint53e_post
1331    o merged cylindrical coord configuration
1332    o added rotating_tank experiment
1333    checkpoint53e_pre
1334    
1335    checkpoint53d_post
1336    o faulks upgraded: re-generate output.txt that have changed:
1337       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1338    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1339    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1340    o added Sadourny discretization of Coriolis
1341      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1342      - re-enabled use of omega3 (useAbsVorticity)
1343    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1344      vector-invariant equations
1345      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1346    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1347      hopefully without new bugs
1348      - still to do: biharmonic friction for non-hydrostatic w
1349    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1350    o regenerated output for global_ocean_ebm (using -ieee)
1351    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1352      of mom_common/
1353      - simple re-arrangement of instructions within computing loop
1354    checkpoint53d_pre
1355    
1356    checkpoint53c_post
1357    o new version of coupler for AIM+thSIce and Ocean models
1358     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1359     - land: change Evaporation of snow
1360     - aim with thSIce: fix bug in snow-precip.
1361    o changes to calc_gw.F
1362     - bug fix for w^2 term near the bottom boundary
1363     - (hopefully) improve the lateral slip boundary condtions for use with
1364        partial/looped cells
1365      - because the bug fix changes two verification experiments anyway (exp5
1366        and plume on slope), change the lateral boundary condition from half slip
1367        to the value of no_slip_sides
1368    o ebm package wasnt quite up to the parallel task. Fixed that.
1369    o Adjoint of EBM package + verification
1370      * TLM OK
1371      * ADM not sufficient accuracy yet (needs further testing)
1372    
1373    checkpoint53b_post
1374    o Commiting new energy balance model to repository
1375      * package is pkg/ebm
1376      * verif. is verification/global_ocean_ebm
1377      * references are in ebm_driver.F
1378    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1379    C        Global thermohaline circulation. Part I:
1380    C        Sensitivity to atmospheric moisture transport.
1381    C        J. Climate 12(1), 71-82
1382    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1383    C        Global thermohaline circulation. Part II:
1384    C        Sensitivity with interactive transport.
1385    C        J. Climate 12(1), 83-91
1386    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1387    C        Destabilization of the thermohaline circulation
1388    C        by atmospheric eddy transports.
1389    C        J. Climate 7(12), 1870-1882
1390    o Will need long integration testing.
1391    checkpoint53b_pre
1392    
1393    o created pkg/mom_common in preparation for variable viscosity code
1394    o renamed and split ini_mnc_io
1395    o pkg/land: only liquid water can diffuse or run-off
1396    o AIM using land: soil wetness availability account for snow
1397    o added printMapIncludesZeros to EEPARMS namelist
1398    
1399    checkpoint53a_post
1400    o restore TAMC compatiility for exf_constants.h
1401      (no usage of _d in .h)
1402    o Additional storing in KPP in an attempt to fix
1403      TAMC problem with adjoint of KPP code.
1404      (no success...)
1405      Identical code works fine with TAF.
1406    o Fixed verification/natl_box_adjoint experiments.
1407      Initial conditions for Experiments 4 and 5 are now
1408      set to "SEAICE_initialHEFF=0", which is more reasonable,
1409      and hence gives results closer to that of Experiment 2.
1410      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1411    
1412    checkpoint53
1413    o stable checkpoint with up to date adjoint
1414      TLM tests only run for 1st grdchk at the moment. Its unclear if
1415      this is a code problem or a problem with resetting code for g_
1416      variables that is being autogenerated wrong.
1417      Otherwise:
1418       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1419       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1420         are both still in chaos following their security messes.
1421    
1422    checkpoint52n_post
1423    o various build (mostly genmake2) changes including:
1424      - ability to build/run more easily within Cygwin and MacOS X
1425      - more complicated Makefiles with a stronger dependence on Gnu Make
1426    o pkg/seaice modifications
1427      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1428        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1429        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1430      - changed proxy for geostrophic velocity and updated
1431        verification/lab_sea/results/* accordingly
1432      - removed ADI dynamic solver from pkg/seaice
1433      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1434        they caused a segmentation fault under certain circumstances
1435      - removed unused field WATR
1436    o bug fix in exf-package:
1437      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1438         now reflect that.
1439    o small fixes in the cal-package:
1440      - set reference date to first of January for the 'model'-calendar
1441      - failing of cal_CheckDate in cal_FullDate now actually results in a
1442        warning
1443    o small modifications in exf-package to increase flexibility:
1444      - change climtempfreeze from a constant to a runtime parameter that
1445        is specified in data.exf_clim (default = -1.9)
1446      - introduce runtime parameter windstressmax (default = 2.0) that is
1447        specified in data.exf
1448    o fix in pkg/thsice:
1449      - update Evap (Tsf changes) to be consistent with Latent heat flux
1450      - maintain snow precipitation unchanged (even if Tsf >=0).
1451     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1452    
1453    checkpoint52m_post
1454    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1455      this does not change any of the results, because myIter=0 in swfrac always
1456      lead to jwtype=2 (the default anyway), but the call makes little sense
1457      as a default
1458    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1459    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1460      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1461    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1462    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1463    o extending useSingleCpuIO option to work with new exch2 I/O format
1464      - old-style, missing-tile I/O is still accessible by defining CPP
1465        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1466    o monitor package can write to NetCDF files and/or STDOUT
1467    o fix re-definition bug in MNC_GRID_INIT_ALL()
1468    o doc/api_reference added
1469      - a framework for building an API Reference Manual using all
1470        the "protex" comments embedded in the code
1471      - see pkg/generic_advdiff, pkg/mnc for examples
1472    o MNC:
1473      - make myThid the last argument for all subroutines
1474      - new default for the grid files: NO halos
1475      - add useMNC and other run-time flags
1476      - separate per-file-group handling of the unlimited dimension
1477      - early initialization of MNC w/ flags read at the eeboot stage
1478        and lookup tables set in initialize_fixed
1479      - write all MNC output to a freshly-created directory
1480    o thermodynamics sea-ice (thsice) is now tested with testreport.
1481    o test exp. advect_cs: use the standard cs32 grid ; update output.
1482    o Added functionality to grdchk:
1483      pick global i,j,k position (or nearest wet) where to perform check.
1484    
1485    checkpoint52l_post
1486    o new land formulation:
1487      a) use ground enthalpy as prognostic variable to ensure exact
1488         energy conservation.
1489      b) account for water temperature and for latent heat of freezing
1490         in all processes (rain, run-off, ground storage)
1491      c) compute surface and ground temperature implicitly.
1492    o aim_v23 modification for new land model:
1493      a) Treat separately land / ocean / sea-ice surface fluxes
1494         to allow implicit computation of land & sea-ice surface temp.
1495      b) add snow precipitation.
1496    checkpoint52l_pre
1497    
1498    o fix problem (when 1 tile is empty) in min/max monitor.
1499    o fix bug in timeAve (u,vZetatave in common block)
1500    o no restoring terms under ice for pkg/seaice
1501    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1502    o bug fix for pkg/seaice pickups
1503    o change MNC call locations and add coordinate attributes
1504    o mask vorticity at the corner ; affects global_ocean.cs output
1505    o fix ini_curvilinear_grid ; test CS experiments with mpi
1506    o aim.5l_cs: modify sea-ice fraction input file ; update output
1507    o exf: Adding simple range check routine for exf fields after read
1508    
1509    checkpoint52k_post
1510    o removed top-level directory "diags"
1511      - we migrated these functions to pkg/timeave a long time ago
1512    o fixed bug introduced in pkg/monitor
1513    o accuracy ctrlprec = 32 insuffient for gradient checks using
1514      averaged fields (I/O via cost_averages)
1515      -> use ctrl.h in active_file*.F to control I/O precision.
1516    o paramter list of CALL ADTHE_MAIN_LOOP
1517    o added initial do_the_model_io to ecco
1518    o set all ...Freq to zero after cost_final
1519      taveFreq, dumpFreq, pChkptFreq
1520    o MAIN and ECCO differentiability restored
1521    
1522    checkpoint52j_post
1523    o fix nchklev in tamc.h for global_ocean...
1524    o Bringing flow and store directives up-to-date
1525    o Really weird thing!
1526      call do_the_model_io from the_main_loop with parameters
1527      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1528      TAF places a faulty re-call of initialise_varia
1529      after cost_final call which should not be there!
1530    checkpoint52j_pre
1531    
1532    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1533      error messages
1534    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1535    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1536      debug output
1537    o modfied mdsio_writefield.F to handle non-global files under exch2
1538    o update AIM Cubed-Sphere exp (aim.5l_cs):
1539      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1540    o update AIM Equatorial Channel exp:
1541      use standard aim_v23 pkg and change the SST fields to be more realistic.
1542    o globalFile now works with exch2
1543    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1544      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1545    o limit timeave output for hi-res integrations
1546    
1547    checkpoint52i_post
1548    o removed CPP_EEOPTIONS.h from verification/*/code
1549    o updated the tiling for global_ocean_pressure
1550    checkpoint52i_pre
1551    
1552    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1553      the old pkg/aim).
1554    
1555    checkpoint52h_pre
1556    o shortened offending lines in exch2_send_rx?.template
1557    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1558    o genmake2: add build & execute test for NetCDF code
1559    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1560      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1561    o added useSingleCPUIO flag to monitor.F and mon_out.F
1562    o added temporary hack for sea-ice dynamics on the cube:
1563      metric terms are ignored and it is assumed that
1564      there is no sea-ice on cube faces 1, 2, 4, and 5.
1565    
1566    checkpoint52f_post
1567    o added exch2 cube routines to pkg/exch2
1568    o modified hs94.cs-32x32x5 to use it
1569    o added new grid files to hs94.cs-32x32x5
1570    checkpoint52f_pre
1571    
1572    checkpoint52e_post
1573    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1574      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1575    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1576      to work with implicit vertical advection and AB ;
1577    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1578    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1579     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1580    checkpoint52e_pre
1581    
1582    o fix bug in impldiff when Nr=1 or Nr=2.
1583    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1584    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1585    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1586      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1587    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1588    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1589    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1590    
1591    checkpoint52d_post
1592    o re-tiled many expts to allow comparison in multi-processor mode
1593      - updated output accordingly
1594      - changed hs94.128x64x5 to use intial T from file rather than use the
1595        random number generator
1596    o add infrastructure in model routines for fizhi and gridalt packages
1597    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1598    o changes to permit hi-res, cubed-sphere, configuration
1599      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1600      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1601      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1602        of surface winds for the cube
1603      (A verification experiment, based on global_ocean.cs32x15, but with
1604       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1605       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1606       complete with example surface forcing files and matlab scripts to look
1607       at the output and compare it with that of global_ocean.cs32x15.)
1608    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1609       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1610       to conform to the common rule.
1611    o check-in the first version of the coupler + interfaces for multi-components
1612       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1613       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1614       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1615       - ocean and atmos. share the same horizontal grid (no interpolation).
1616       - exchanges between component and coupler is done in forward_step
1617    o new verification experiment, cpl_aim+ocn:
1618       coupled ocean - AIM atmosphere on cs32 grid.
1619    
1620    checkpoint52d_pre
1621    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1622    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1623    
1624    checkpoint52c_post
1625    o Fixing OPTIONS files for use of exf:
1626      - ALLOW_ECCO not needed
1627      - ECCO_CPPOPTIONS.h should not be included from
1628        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1629        as has been the case in the past
1630      - All cal/exf related options are currently set in
1631        single header file. Should remain so until we
1632        agree on a consistent new policy.
1633    o Removed all CPP options for cal package.
1634      cal has no more CPP options.
1635    o modified STOREs in GAD_ADVECTION
1636    o corrected key comp. for passkey
1637    
1638    checkpoint52b_post
1639    o new version: "thsice" of thermodynamic sea-ice pkg:
1640     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1641     - modify fluxes but do not change theta directly;
1642     - light cleaning of bulk_force pkg (still needed with thsice).
1643     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1644       + output_thsice.txt to test thsice & bulk_force pkgs.
1645    o put back grid & coriolis monitor output.
1646    checkpoint52b_pre
1647    
1648    o call "do_the_model_io" at the beginning (=> dump initial state)
1649    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1650    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1651      (need info on NUMBER_OF_PTRACERS)
1652    o missing PTRACERS headers in some routines
1653    o default tamc.h in pkg/autodiff supposed to crash
1654      to ensure proper customization
1655    
1656    checkpoint52a_post
1657    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1658      - moved surfaceTendencyTice from pkg/seaice to main code
1659      - subroutine FREEZE_SURFACE now limits only surface temperature
1660        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1661        => new output.txt for global_ocean.cs32x15 & global_with_exf
1662      - keep the old version of FREEZE for backward compatibility;
1663        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1664      - corresponding modifs for TAF directives
1665    o added surface flux output variables to TIMEAVE_STATVARS
1666    o time-averaged output for pkg/ptracers
1667    o fix problem with ECCO-related divided adjoint
1668      snapshot file was missing some ad-variables,
1669      but no warning issued by TAF
1670    
1671    checkpoint52a_pre
1672    o some bug fixes for #undef REAL4_IS_SLOW
1673    
1674    checkpoint52 = ecco_c52_e35
1675    o after testing adjoints of checkpoint51u_post
1676    
1677    checkpoint51u_post
1678    o this is the post-merge tag of the ecco-branch
1679      (needs another clean checkout and re-testing)
1680    o various natl_box_adjoint configs and results
1681      but no input fields
1682    o obcs adjoint not yet merged!
1683    o adding ECCO global 1x1 and 2x2 degree configs
1684    o updated/extended some store directives for seaice
1685    o pkg/ecco now containes ecco-specific part of cost function
1686    o top level routines the_main_loop, forward_step
1687      supersede those in model/src/
1688      previous input data.cost now in data.ecco
1689      (new namelist ecco_cost_nml)
1690    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1691    
1692    checkpoint51t_post
1693    o this is the pre-merge tag of the ecco-branch
1694    
1695    checkpoint51s_post
1696    o cleanup: removed various obsolete #define-s
1697    o pkg/grdchk
1698      - renamed 'ph-grd 3' to 'grad-res'
1699      - merged from ecco-branch
1700        (remaining bug fixes for obcs gradient checks)
1701      - additional high-precision output for testreport
1702        (grep for 'precision_grdchk_result')
1703    
1704    checkpoint51r_post
1705    o cleaned up or removed CPP_OPTIONS.h files
1706    o updated results for some of the tests to reflect the new
1707      optfiles (-ieee: -O0 instead of -O3)
1708    
1709    checkpoint51q_post
1710    o cd_code:
1711      - moved cd_scheme.F -> cd_code_scheme.F
1712      - separate read_checkpoint from cd_code_ini_vars.F
1713      - separated cd_code part from write_checkpoint
1714      - updated AD_SOURCE, generated .flow
1715      - added CD_CODE_VARS.h to the_main_loop
1716      - Moving cd_code specific store dir.s to pkg/cd_code
1717    o ctrl package totally restructured
1718      - pack/unpack now optional and decoupled from
1719        xx_/adxx_ I/O
1720      - ctrl_pack/unpack cleaned
1721        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1722      - confined inclusion of AD_CONFIG.h to where necessary.
1723    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1724    
1725    checkpoint51p_post
1726    o create initial cd_code package
1727      - WARNING: the initialization of fields within packages
1728        is broken because INI_FIELDS (where READ_CHECKPOINT is
1729        called) is called *before* PACKAGES_INIT_VARIABLES.
1730        This seems to be backwards since
1731        1) its important to initially zero the entire field including
1732           the "halo" region
1733        2) zeroing needs to be done *before* reading pickup info
1734           and the pickup call might or might not happen in any
1735           particular run
1736      - this needs an overhaul for R2
1737    o cleanup verification/*/code/GMREDI_OPTIONS.h
1738    o cleanup testreport
1739    
1740    checkpoint51o_post
1741    o bringing AD-related verif's up to date with genmake2
1742      - carbon/
1743      - global_ocean.90x40x15/
1744      - hs.94.1x64x5/
1745      - (front_relax/ )
1746    o (more) consistent directory structure for AD-related verif.'s
1747    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1748    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1749    o bug fix in find_alpha.F for MDJWF:
1750      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1751        change rho -> rho-rhoConst
1752      - replace call find_rho to find_rhonum
1753    o initialisation of rFlx extended to full array (required by TAF)
1754      and shifted to thermodynamics
1755    o removed PTRACERS.h in ptracers routine
1756    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1757    o Correcting initialisations for fVerU, fVerV.
1758    o helping TAF to recognize dependency on kUp for
1759      fVerU, fVerV
1760    o Replacing delZ by delR in pkg/ctrl/
1761    checkpoint51o_pre
1762    
1763    o undid all of cp51 pending some cleanups and discussion
1764    o added the [#include "AD_CONFIG.h"] statement to all files that need
1765       it for adjoint/tl #defines
1766     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1767     o removed tools/genmake since it no longer works
1768    
1769    checkpoint51n_post
1770    o modifications to make FREEZE flux visible to pkg/kpp
1771      - moved surfaceTendencyTice from pkg/seaice to main code
1772      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1773      - subroutine FREEZE now limits only surface temperature
1774        (this means new output.txt for global_ocean.90x40x15,
1775         global_ocean.cs32x15, and global_with_exf)
1776    o added surface flux output variables to TIMEAVE_STATVARS
1777    
1778    checkpoint51n_pre
1779    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1780    o added [#include "AD_CONFIG.h"] to all files that use the following
1781      defines:
1782      - ALLOW_ADJOINT_RUN
1783      - ALLOW_TANGENTLINEAR_RUN
1784      - ALLOW_ECCO_OPTIMIZATION
1785    
1786    checkpoint51m_post
1787    o incorporating changes to get TAMC/TAF working in genmake2
1788      - added new TAMC/TAF targets to the Makefile
1789      - various cleanups related to package handling
1790      - these changes should have no impact on the forward model
1791    
1792    checkpoint51l_post
1793    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1794     - faster algorithm for cal_addtime.F
1795     - higher precision arithmetic, where needed
1796     - pkg/exf *startdate variables changed from calendar date to
1797       model integration time
1798    
1799    checkpoint51l_pre
1800    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1801    o enable to apply restoring on S & T only in a latitude band.
1802    o update output (external_forcing_surf modif. change truncation errors)
1803       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1804    
1805    checkpoint51k_post
1806    o change default to: useNHMTerms=.FALSE.
1807     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1808       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1809     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1810        exp1, ideal_2D_oce
1811     - change data file of oceanic exp (leave the results unchanged for now)
1812       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1813    o set gravitySign automatically according to the vertical coordinate used
1814      (and change sign: back to "logical" value: +1 when R increases downward)
1815    o added an include barrier to the default CPP_OPTIONS.h and
1816      removed the #include "PACKAGES_CONFIG.h" from it
1817    o fix a bug in mom_fluxform (from chk51j_post)
1818    
1819    checkpoint51j_post
1820    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1821    o adjusted some flow directives (dynamics, thermodynamics)
1822    o added cubed-sphere case to test cost function
1823    o heckpoint_lev?_directives.h now include
1824      pkg-specific directives, whenever those are enabled.
1825    o Moving pkg-specific flow directives to corresponding pkg
1826      Moving pkg-specific differentiation list to corresponding pkg
1827      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1828      ---> conventions are
1829           - pkg_ad.flow
1830           - pkg_ad_diff.list
1831           - pkg_ad_check_lev?_dir.h
1832    
1833    checkpoint51i_post
1834    o merge of the branch-genmake2
1835      - knowingly breaks the older genmake
1836      - automatic generation of all ALLOW_${PKG_NAME} defines
1837      - new testreport supersedes older testscript
1838    o large number of package inclusion and header cleanups
1839    checkpoint51i_pre
1840    
1841    o new output for adjoin of global ocean vector invariant
1842    o fix for checkpoint of thermodynamic seaice and bulk_force
1843    o Steph gchem various cleanups
1844    
1845    checkpoint 51h_pre
1846    o fixed some single quotes
1847    o modify gchem pkg to be more versatile
1848    o modifications to clean up dic pkg
1849    o add pkg/cfc
1850    
1851    checkpoint51g_post
1852    o provide links for ARPACK and ADM*TLM
1853    o start removing verification/vero/
1854    o update AD-related stuff
1855      (in particular some IF-statements in model/src/ routines)
1856    o adding to verification/global_ocean.90x40x15/ adjoint of
1857      vector invariant setup
1858    
1859    checkpoint51f_post
1860    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1861    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1862      of tracer Green's fucntions for ocean inversion project.
1863    
1864    checkpoint51f_pre
1865    o Added on-the-fly spatial interpolation capability
1866        "USE_EXF_INTERPOLATION" to pkg/exf.
1867      - This is a temporary Cartesian-grid hack until
1868        the super-duper ESMF coupler becomes available.
1869      - See verification/global_with_exf/README for usage example.
1870      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1871        flags and modified pkg/seaice accordingly.
1872    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1873        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1874        non-local transport term.
1875    
1876    checkpoint51e_post
1877    o pkg/mom_vecinv:
1878      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1879      - add time-ave diagnostic of vorticity advection.
1880    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1881    o atmospheric geopotential: - include water vapor effect;
1882                                - use p^kappa in p* scaling.
1883    o land pkg: read initial state from files.
1884    o AIM : add stratospheric drag in the upper level
1885    
1886    checkpoint51d_post
1887    o change function ILNBLNK (=> last non-blank char.) to return zero
1888      (instead of the string length) when the string. char is empty
1889    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1890    o modif's to restore TAMC compatibility
1891      - avoid "_d" constructs in PARAMETER declarations
1892      - avoid interrupting lines by comment lines
1893    o Use cluster local disks for purely local I/O
1894      vs. globally visible disks needed for ctrl stuff
1895      (merged from ecco-branch)
1896      - new active_file_loc... and mdsio_..._loc routines
1897      - affected packages: autodiff, ctrl, grdchk, mdsio
1898    
1899    checkpoint51c_post
1900    o introducing integer flag debugLevel
1901      - debLevZero: suppress all output
1902      - debLevA: standard
1903      - debLevB: equivalent to current debugMode=.TRUE.
1904    o introducing pathname variable mdsioLocalDir for mdsio
1905      that can be specified at runtime
1906      (relevant for cluster I/O to local disk)
1907    `
1908    >>>checkpoint51b_post
1909    adjoint of ptracers
1910    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1911    o extended state in checkpoint_lev?, etc.
1912    o alternative ctrl/cost with tr1 or ptracer
1913    o new comlev1_bibj_ptracers
1914    o new ptracers.flow
1915    o made ptracers_forcing same as external_forcing_s
1916    o added verification for adjoint with ptracers
1917      - adm. grdchk fail so far
1918      - tlm. grdchk OK
1919      - checked tapelev/comlev recomputations: OK
1920    <<<checkpoint51b_pre
1921    
1922    checkpoint51a_post
1923    o added code for biogeochemistry package
1924      - new pkgs: dic, gchem
1925      - new subroutine in ptracers
1926    o modify code for biogeo packages
1927      - in model/src and pkg/ptracers
1928    
1929    checkpoint51
1930    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1931      - autodiff, ctrl, exf, grdchk, seaice
1932      kept separate packages
1933      - cost, ecco, obcs
1934    o updating verification/internal_wave, verification/lab_sea
1935      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1936    
1937    checkpoint50i_post
1938    o Preparing next differentiable checkpoint and sync
1939      of MAIN vs. ecco-branch
1940      - 1st step: this one is differentiable
1941      - 2nd step: next(! not this) checkpoint will have updated packages
1942                  from ecco-branch)
1943    
1944    checkpoint50h_post
1945    o new package "land": provide surface BC for AIM.
1946    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1947    o AIM: use true log-P extrapolation for near surface temp (= as in
1948        F.Molteni paper) ; update aim.5l_cs output.
1949    o New variable in PARM03 for more flexible pickups
1950    o somewhat cleaned package initialisation sequence for
1951      ctrl/ cost/ ecco/ in packages_... routines
1952    
1953    checkpoint50g_post
1954    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1955      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1956      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1957        made the default because of faster convergence than ADI
1958    
1959    checkpoint50f_post
1960    o exf totally restructured
1961      - replaced all exf_set_ routines by one generic exf_set_gen.F
1962        and made sure it's still differentiable
1963      - split exf_getffields.F into new exf_bulkformulae.F
1964      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1965      - updated adjoint/makefile and relevant verif. accordingly
1966    
1967    checkpoint50f_pre
1968     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1969          + change Evap over land. (update aim.5l_cs output)
1970     o added missing .cvsignores and made uniform across expts
1971     o changed configuration of tidal_basin_2d expt
1972     o added pkg/debug functions for tracing code in fatal crashes
1973     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1974     o new fn in pkg/monitor to stop model if solution grows too big
1975     o removed lots of single quotes from comments
1976    
1977    checkpoint50e_post
1978    o make KPP work with PTRACERS
1979     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1980       nearly a copy of kpp_transport_s
1981     - there is no analogue to SurfaceTendencyS, so I have to use
1982       gPtr(of the surface layer) instead
1983    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1984    checkpoint50e_pre
1985    
1986    checkpoint50d_post
1987    o change kpp output from multiple-record state files to single-record state
1988      files analogous to write_state.F
1989    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1990      analogous to the cg2d-related output.
1991    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1992      so that writing to internal file fn (with length 512) fails.
1993    checkpoint50d_pre
1994    
1995    checkpoint50c_post
1996    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1997    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1998    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1999    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2000    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2001    
2002    checkpoint50c_pre
2003    Merging from release1_p13:
2004    o bug fix for pkg/seaice dynamic solver
2005    o Added SEAICE_initialHEFF to pkg/seaice
2006    
2007    checkpoint50b_post
2008    o store u*,v* in gU,V instead of in guNm1,gvNm1
2009    o in order to put the momForcing out of the Adams-Bashforth:
2010      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2011      to timestep.F
2012    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2013    o re-generate output for highly sensitive test-exp:
2014       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2015    
2016    checkpoint50b_pre
2017    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2018    o corrected CPP option mismatch in exf_Bulk... functions for case
2019      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2020    
2021    checkpoint50a_post
2022    o Bug fix for merging between c50 and KPP.
2023      ikey was passed from thermodynamics to kpp_calc via
2024      common block rather than being recomputed in kpp_calc,
2025      in contradiction with new key itdkey.
2026      New key ikppkey created, and tamc.h headers updated.
2027    
2028    checkpoint50
2029    - 2nd step of merge with ecco-branch:
2030      merge changes in ecco-branch back into main trunk
2031    - bug fix in find_alpha
2032    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2033    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2034    - merged some sliced AD support routines
2035    
2036    checkpoint49
2037    merged from ecco-branch:
2038    o exf:
2039      - Enable initialisation of forcing fields to constant
2040        (runtime) values.
2041      - in exf_getffields.F
2042        Reduce i-/j-loop to interior domain, discarding overlaps.
2043        That also fixes wrong TAF-key computations for key_1, key_2
2044        with bulf formulae.
2045      - exf_init.F modify #ifdef for exf_init_evap
2046      - exf_getffieldrec.F, ctrl_getrec.F
2047        The following INT-usages are not safe:
2048          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2049          fldcount = int(fldsecs/fldperiod) + 1
2050        and were modified.
2051    o autodiff: checkpoint_lev...
2052      - updated storing for bulk formulae (some arrays were missing)
2053      - added state for seaice package
2054      - synchronized with main branch
2055    o DIVA:
2056      Modif.s in
2057      - the_main_loop.F
2058      - the_model_main.F
2059      and added cost_final_restore.F cost_final_store.F
2060      o With these changes, it is possible to fully separate
2061        the first forward run to compute the cost function (mdthe_main_loop)
2062        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2063        into separate model executions.
2064        This enables better tuning of DIVA to given queue sizes.
2065      o Loss of cost function value in consecutive DIVA runs is
2066        fixed by storing to 'costfinal' file.
2067      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2068        beginning/end of adjoint integration is accounted for.
2069      The current changes apply to TAF-1.4.26.
2070      TAF has one remaining bug, requiring one manual change
2071      (see MITgcm manual).
2072    o cal: synchronized between MAIN and ecco-branch
2073    
2074    checkpoint48i_post
2075    o Changes to restore differentiability of code w.r.t. previous tag
2076      (mostly adding new routines to make list and replacing
2077      pressure by totPhiHyd).
2078    o Updated and merged grdchk package
2079      - has both ADM and TLM checks
2080      - works for single- and multi-proc.
2081      - output cleaned
2082      - worked successfully for parallel DIVA
2083    o genmake:
2084      - Adding -platform=SP4
2085      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2086    o Modif. for DIVA:
2087      ctrl_unpack should not be called in intermediate DIVA interval.
2088      (similar thing would apply for active files such as
2089      tbar, sbar, psbar, which should not be reinitialised;
2090      only relevant for ecco-branch)
2091    
2092    checkpoint48h_post
2093    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2094    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2095    o Added SEAICE_initialHEFF to pkg/seaice
2096    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2097    
2098    checkpoint48g_post
2099    --- EOS:
2100    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2101      store total Potential in totPhyHyd for diagnostics & EOS.
2102    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2103    --- Pressure/geopotential gradient:
2104    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2105    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2106      ( changes results of global_ocean_pressure )
2107    o NLFS + z-coord.: add eta*Rho' contribution.
2108    o accurate phiHyd when using interface-W at the middle between 2 centers
2109     ( changes results of ideal_2D_oce )
2110    o includes r* 2nd term in potential gradient.
2111    
2112    checkpoint48f_post
2113    Merging from release1_p12:
2114    o Modifications for using pkg/exf with pkg/seaice
2115      - improved description of the various forcing configurations
2116      - added basic radiation bulk formulae to pkg/exf
2117      - units/sign fix for evap computation in exf_getffields.F
2118      - updated verification/global_with_exf/results/output.txt
2119    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2120      (SBO) core products, including oceanic mass, center-of-mass,
2121      angular, and bottom pressure (see pkg/sbo/README.sbo).
2122    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2123      to avoid negative values in shallow regions.
2124      - updated verification/natl_box/results/output.txt
2125      - updated verification/lab_sea/results/output.txt
2126    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2127    o Added useSingleCpuIO option (see PARAMS.h).
2128    o Updated useSingleCpuIO option in mdsio_writefield.F to
2129      work with multi-field files, e.g., for single-file pickup.
2130    o pkg/seaice:
2131      - bug fix in growth.F: QNET for no shortwave case
2132      - added HeffFile for specifying initial sea-ice thickness
2133      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2134    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2135      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2136    o pkg/seaice:
2137      - adjoint-friendly modifications
2138      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2139    
2140    checkpoint48e_post
2141    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2142    o dynamics: change definition of computational domain & adapt mom_fluxform
2143      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2144    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2145        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2146        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2147        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2148        inverted_barometer solid-body.cs-32x32x1
2149      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2150    
2151    checkpoint48d_post
2152    o in preparation for r*:
2153     a) use pre-computed gradient of hydrostatic potential:
2154        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2155     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2156        => affects results of glob_oce_pressure (different truncation error)  
2157      update output.txt of ideal_2D_oce & global_ocean_pressure
2158    
2159    checkpoint48d_pre
2160    o in preparation for r*:
2161      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2162      pass the 2 comp. of the grad. as arguments to momentum S/R.
2163      but for the moment, only used if it does not change the results.
2164    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2165    
2166    checkpoint48c_post
2167    Modifications in treatment of initial flux forcing controls
2168    to avoid extra storing of flux fields.
2169    
2170    checkpoint48c_pre
2171    o Added tidal_basin_2d experiment (currently 1D!)
2172    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2173    
2174    checkpoint48b_post
2175    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2176     (modification to pressure gradient not yet implemented)
2177    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2178      (for U & V) that are used for vertical advection of momentum.
2179    
2180    checkpoint48a_post
2181    o In preparation for r*, use temp. array to compute vertical transport
2182       in flux-form momentum pkg. => change results of few test-exp.
2183      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2184                        lab_sea, natl_box & plume_on_slope
2185    
2186    checkpoint48
2187    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2188    
2189    checkpoint47j_post
2190    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2191    o moved adexch from forward_step to addummy_in_stepping
2192    o added exch in ctrl_map_...
2193    o aveFreq.=0. at end of cost_final to avoid overwrite in
2194      reverse checkpointing loop
2195    o Yet more changes in gmredi:
2196      * adgmredi_calc_tensor
2197        avoiding all recomputation of gmredi_slope_limit
2198      * adgmredi_x/y/rtransport
2199        added flag for excessive storing to avoid recomp. of
2200        u/v/rtans, dTdx/y/z
2201        -> this is not really necessary and very memory-consuming
2202      * adgmredi_slope_psi:
2203        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2204      * gmredi_slope_limit
2205        re-activated full calculation of taperfct for case 'ac02'
2206    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2207    
2208    checkpoint47i_post
2209    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2210    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2211      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2212    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2213    o gmredi: fix few bugs.
2214    
2215    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2216    This will be a good checkpoint to plug into the ecco-branch.
2217    o few modif.'s to get latest version adjointed
2218      (mainly kick out code in ini_linear_phisurf)
2219    o modif's to run adjoint with exactConserv
2220    o case GM_BOLUS_ADVEC should be cleaned
2221      S/R gmredi_slope_psi should be cleaned
2222    o verification/carbon now has exactConserv=.TRUE.
2223    
2224    checkpoint47g_post
2225    o time-average AIM output: becomes independent from statvars time-average
2226      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2227    o After TAF bug fix:
2228      Tested adjoint of gmredi package.
2229      Tests were done with checkpoint47 rather than with latest
2230      checkpoint47f_post since the latter is broken for the adjoint
2231      verification/carbon/ contains both ADM and TLM gradient checks.
2232    Here they are, before they get changed/lost/stolen.
2233    Mostly modif.'s to fix numerical sensitivities.
2234    Gradient checks OK for
2235    - GM_taper_scheme:
2236      * clipping
2237      * ac02
2238      * linear
2239      * glw91
2240      * dm95
2241      * ldd97
2242    - GMREDI_OPTIONS:
2243      * GM_VISBECK_VARIABLE_K
2244      * GM_NON_UNITY_DIAGONAL
2245      * GM_EXTRA_DIAGONAL
2246      * GM_BOLUS_ADVEC
2247    in conjunction with data.gmredi parameters to be checked in
2248    in a few minutes under verification/carbon/code/
2249    
2250    checkpoint47f_post
2251    Merging from release1_p10:
2252    o modifications for using pkg/exf with pkg/seaice
2253      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2254        and SEAICE_EXTERNAL_FLUXES
2255      - pkg/exf CPP options EXF_READ_EVAP and
2256        EXF_NO_BULK_COMPUTATIONS
2257      - usage examples are Experiments 8 and 9 in
2258        verification/lab_sea/README
2259      - verification/lab_sea default experiment now uses
2260        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2261    
2262    checkpoint47e_post
2263    o created a tag prior to creating a branch
2264    
2265    checkpoint47d_post
2266    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2267      at the bottom boundary had an erroneous half slip boundary condition
2268    o added bottom drag and no slip boundary condition capabilities to
2269      oceanic pressure coordinates code
2270    o added new verification experiment global_ocean_pressure, this experiment is
2271      also described in the tutorial section of the manual
2272    checkpoint47d_pre
2273    
2274    checkpoint47c_post
2275    o Added a verification experiment for a global cubed-sphere ocean run
2276      -  verification/global_ocean.cubed32x32x30
2277      -  uses pkg/therm_seaice and pkg/bulk_forcing
2278    
2279    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2280    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2281      when using P-coordinate; only implemented for atmospheric config.
2282    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2283      NOTES: requires option NONLIN_FRSURF to be "#define".
2284    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2285    
2286    checkpoint47b_post
2287    Merging from release1_p9:
2288    o pkg/seaice
2289      - removed GOTO's and added taf directives
2290      - double precision constants to reduce the g77 (Linux)
2291        to F77 (SGI) differences reported in release1_p8
2292    o tools/genmake
2293      - added SGI options
2294    o verification/testscript
2295      - updated to that of checkpoint47a_post
2296    o verification/global_ocean.90x40x15/input/eedata
2297      - modified for SGI f77 compatibility
2298    o verification/lab_sea
2299      - added description of sea-ice model
2300      - added missing matlab routines
2301      - added test of thermodynamics parallelization
2302    
2303    checkpoint47a_post
2304    o new pkg: aim_v23
2305     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2306       for now, keep the same surface forcing as before.
2307     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2308     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2309     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2310    o add diagnostic of surface correction term in monitor output
2311    
2312    o bulk_force and therm_seaice
2313    - Two packages:  bulk_force (Bulk forcing)
2314      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2315    - Earlier integration from Stephaine Dutkiewicz
2316      and Patrick Heimbach.
2317    - Two ifdef statements for compile time,
2318       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2319    
2320    checkpoint47
2321    differentiable version of checkpoint46n_post
2322    o bug fix in quasihydrostaticterms
2323    o * "clean" adjoint code (in terms of extensive recomputations)
2324        can now be obtained for all GMREDI options (i.e. for
2325        - GM_VISBECK_VARIABLE_K
2326        - GM_NON_UNITY_DIAGONAL
2327        - GM_EXTRA_DIAGONAL
2328        - GM_BOLUS_ADVEC )
2329      * However, wrong gradient check problem remains unsolved.
2330      * New CPP options have been introduced for different
2331        tapering schemes
2332    o external_fields_load now part of differentiation list
2333    o pressure needs multiple storing;
2334      would be nice to have store_pressure at beginning or
2335      end of forward_step, e.g. by having phiHyd global (5-dim.)
2336      (NB: pressure is needed for certain cases in find_rho,
2337      which is also invoked through convective_adjustment).
2338    o recomputations in find_rho for cases
2339     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2340    o #define ATMOSPHERIC_LOADING should be differentiable
2341    o ini_forcing shifted to begining of initialise_varia
2342    o Incorporating QNVS line search routines into MITgcm
2343      (this is separate code, and therefore not under pkg)
2344      lsopt/, optim/
2345    o Updated verification/carbon/
2346      - #define GM_VISBECK_VARIABLE_K
2347      - GM_taper_scheme    = 'ldd97'    
2348    
2349    checkpoint46n_post
2350    Merging from release1_p8:
2351    o verification/natl_box:
2352      updating new external_fields_load routine
2353    o New package: pkg/seaice
2354      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2355      The sea-ice code is based on Hibler (1979-1980).
2356      Two sea-ice dynamic solvers, ADI and LSR, are included.
2357      In addition to computing prognostic sea-ice variables and diagnosing
2358      the forcing/external data fields that drive the ocean model,
2359      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2360      The implied surface heat flux is then stored in variable
2361      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2362      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2363      non-local transport term.  Because this call precedes model
2364      thermodynamics, temperature under sea-ice may not be "exactly" at
2365      the freezing point by the time theta is dumped or time-averaged.
2366      N.B.: fairly large differences in accuracy occur across
2367            different platforms/compilers; comparison between
2368            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2369            generated output gives:
2370       T           S           U           V
2371      C D M    c        m  s        m  s        m  s        m  s
2372      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2373      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2374      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2375    
2376      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2377    o GAD:
2378      - generated new common blocks to account for call of
2379        same gad routines with differing traceridentities
2380        (needed to modify tracerIdentity indices in GAD.h)
2381      - generated separate common blocks for case useCubedSphereExchange
2382        (Department of Futurology)
2383      - parameter lists to gmredi_?transport: added tracerIdentity
2384      - added new key indices to tamc.h
2385    o external_fields_load:
2386      - added this routine to TAF list
2387      - needed to make some common blocks global and additional storing
2388        along the same lines as exf package (checkpoint_lev?_directives.h)
2389    o exf:
2390      updated external forcing package
2391      - bug fixes carried over from ecco-branch
2392        (missing OBCS_OPTIONS.h in two routines)
2393      - enable easy to use "no forcing".
2394      - added exf I/O for atmospheric loading
2395      - added exf I/O for runoff data
2396      - transfered scaling between exf <-> MITgcm to exf namelist
2397    o Adding new verification experiment global_with_exf.
2398      This verification experiment is almost identical to the
2399      global_ocean.90x40x15 experiment, except that it uses
2400      the exf (and cal) package instead of the
2401      external_fields_load routine (cf README file).
2402    
2403    checkpoint46m_post
2404    o modified testscript to return -- when there are no lines of "%MON" output
2405    o added new flag "quasiHydrostatic" for QH mode
2406      and new routine quasihydrostaticterms()
2407    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2408      New routine: mom_u_coriolis_nh()
2409    o fixed sign of non-hydrostatic metric terms in u and v equations.
2410      Depend on correct sign of gravitySign.
2411    o added work.pc* to .cvsignore in aim directories using ifc
2412    o introduced flag for controllin non-hydrostatic metric terms
2413    o removed gravitySign from PARM04
2414    o switched to g77/ifc from pgf77 in aim experiments
2415    
2416    checkpoint46l_post
2417    o made convective adjustment work with pressure coordinates:
2418     - changed the direction of k-loop in convective_adjustment.F for the
2419       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2420     - adjusted the reference pressure k-index in convective_adjustment.F
2421     - adjusted the convection condition in convect.F (in analogy to
2422       calc_ivdc.F)
2423     - convective_adjustment no longer computes anything on the halos
2424     - removed the warnings about negative salinity from find_rho.F and
2425       find_alpha.F; instead the new routine look_for_neg_salinity, called
2426       at the beginning of find_rho, find_alpha, and find_beta, does a
2427       check of the entire slice, if CPP-option
2428       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2429    checkpoint46l_pre
2430    
2431    checkpoint46k_post
2432    o fixed the verification/global_ocean.90x40x15 experiment:
2433     - new bathymetry (the world according to A., JMC, and M.)
2434     - new initial fields and forcing fields (*.bin files)
2435     - new POLY3.COEFFS (for the next release one should switch to a full
2436       equation of state: JMD95P or MDJWF)
2437     - fixed several errors and redundancies in the data file
2438     - experiment uses looped cells
2439     - added matlab directory with diagnostic scripts for plotting of output
2440    
2441    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2442     - read AIM physics parameters from a file (data.aimphys)
2443     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2444    
2445    checkpoint46j_post
2446    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2447    o move wVel computation at the end of the time step, in S/R integr_continuity
2448    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2449    o update timeave pkg for wVel diagnostic.
2450    checkpoint46j_pre
2451    
2452    checkpoint46i_post
2453    o Clean up AIM package (and keep the results unchanged):
2454      include CPP_OPTION and use IMPLICT NONE in all routines ;
2455      declare all the variables _RL ; use _d 0 for all numerical constants.
2456      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2457    
2458    checkpoint46h_post
2459    o cleaned up the use of rhoNil and rhoConst.
2460      - rhoNil should only appear in the LINEAR equation of state, everywhere
2461        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2462        and the dynamical equations are all divided by rhoConst
2463    o introduced new parameter rhoConstFresh, a reference density of fresh
2464      water, to remove the fresh water flux's dependence on rhoNil. The default
2465      value is 999.8 kg/m^3
2466    o cleanup up external_forcing.F and external_forcing_surf.F
2467      - can now be used by both OCEANIC and OCEANICP
2468    checkpoint46h_pre
2469    
2470     Added code to convert surface volume flux (fresh water) into
2471     a mass flux when using P coordinates in the ocean (OCEANICP).
2472     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2473    
2474    checkpoint46g_post
2475    o Include a new diagnostic variable phiHydLow for the ocean model
2476      - in z-coordinates, it is the bottom pressure anomaly
2477      - in p-coordinates, it is the sea surface elevation
2478      - in both cases, these variable have global drift, reflecting the mass
2479        drift in z-coordinates and the volume drift in p-coordinates
2480      - included time averaging for phiHydLow, be aware of the drift!
2481    o depth-dependent computation of Bo_surf for pressure coordinates
2482      in the ocean (buoyancyRelation='OCEANICP')
2483      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2484        Theta, Salinity, and Pressure in the parameter list. This routine is
2485        presently contained in find_rho.F. This routine does not give the
2486        correct density for 'POLY3', which would be a z-dependent reference
2487        density.
2488    o cleaned up find_rho
2489      - removed obsolete 'eqn' from the parameter list.
2490    o added two new verification experiments: gop and goz
2491      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2492    checkpoint46g_pre
2493    
2494    checkpoint46f_post
2495    o Enable tangent linear (forward mode) gradient checks:
2496      - extended active file handling to g_... files
2497      - added TANGENT_SIMULATION to theSimulationMode
2498      - extended grdchk package accordingly
2499    o added tangent linear setup in verification/carbon/code_ftl
2500    o added adjoint setup in verification/front_relax/code_ad
2501    
2502    checkpoint46e_post
2503    o Added new equation of state -> MDJWF
2504      - EOS of McDougall et al., 2002, JAOT, submitted
2505      - caveat: the equation of state is only valid for a smaller (more
2506        realistic?) range of values than JMD95P/Z and UNESCO
2507      - added masks to the calculation of pressure in store_pressure
2508      - added more check values for density in check_eos (ini_eos.F), some of
2509        the old check values are out of the range of the MDJWF-eos, so don't
2510        expect perfect matches for those
2511    checkpoint46e_pre
2512    
2513    checkpoint46d_post
2514    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2515      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2516      case of pressure coordinates. eosType='JMD95Z' in
2517      combination with buoyancyRelation='OCEANICP' now causes an error.
2518    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2519      in find_alpha/beta.
2520    checkpoint46d_pre
2521    
2522    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2523      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2524    
2525    checkpoint46c_post
2526    o Changes necessary for ocean in p-coordinates
2527     -  Added new buoyancy relation = 'OCEANICP'
2528     -  Added new parameters = gravitySign (this used to be contained inside
2529        the factor dRdZ which I added when we first switched to R coordinates).
2530     X GM/Redi is not compatible (yet)
2531     X bottom drag and no-slip need to be debugged.
2532    checkpoint46c_pre
2533    
2534    checkpoint46b_post
2535    o Added new equation of state -> JMD95Z and JMD95P
2536      - EOS of Jackett and McDougall, 1995, JAOT
2537      - moved all EOS parameters into EOS.h
2538      - new routines ini_eos.F, store_pressure.F
2539    o Added UNESCO EOS, but not recommended because it requires
2540      in-situ temperature (see JMD95)
2541    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2542      unesco.f to be used with POLY3
2543    checkpoint46b_pre
2544    
2545    checkpoint46a_post
2546    o Added (atmospheric) pressure loading
2547      - new field in FFIELDS.h, etc...
2548      - new cpp flag ATMOSPHERIC_LOADING
2549    o Changed hFacC to _hFacC in calc_phi_hyd.F
2550    o Added SHORTWAVE_HEATING to some files for consistency
2551    checkpoint46a_pre
2552    
2553    checkpoint46
2554    further merges from release1_p5
2555    o new ctrl package
2556      - adopted from ECCO environment to enable optimization
2557      - added Eliassen Palm fluxes to controls
2558    o added Eliassen Palm flux controls to gradient check package
2559    o cost package
2560      - Compatible with new ctrl package
2561      - added Eliassen Palm cost hooks
2562      - modif's of existing cost functions
2563    o Adjoint-related bug fixes in kpp:
2564      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2565      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2566    o autodiff package
2567      - flow directives:
2568        + new for S/R do_the_model_io
2569        + enhanced for S/R checkpoint
2570        + new gmredi.flow
2571      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2572        disable adcommon.h/g_common.h by default.
2573      - fixed problem for adjoint of global_max
2574    o modified verification/carbon/
2575    o New setup for adjoint of global_ocean
2576    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2577    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2578    o incorporated hooks for sponge layer code (external_forcing.F)
2579    
2580    checkpoint45d_post
2581    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2582    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2583      (affects plume_on_slope "cg2d" output)
2584    o add new parameter deltaTfreesurf for free-surface time stepping
2585    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2586  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2587  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2588  o add new flags:  o add new flags:

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