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revision 1.14 by cnh, Tue Sep 29 18:57:53 1998 UTC revision 1.723 by mlosch, Fri Sep 1 10:17:39 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    
8    o shelfice:
9     - fix a sign error so that no slip at shelfice interface works
10     - remove stop for combination non-hydrostatic code and shelfice. That does
11       not mean, that the results are correct, but at least they are numerically
12       stable
13    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
14    
15    checkpoint58o_post
16    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
17      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
18    o change controling S/R for writing pickup file (new S/R do_write_pickup)
19      and clean-up reading/writing of pickup files.
20    o fix local version of read/write pickup (NH part) in rotating_tank/code
21    o simplify EXCH interface:
22     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
23     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
24    o added the regrid package
25    o shelfice:
26     - add a simple boundary layer scheme to reduce noise
27     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
28    
29    checkpoint58n_post
30    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
31       local variable (not in common block).
32    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
33      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
34      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
35        to work with SingleCpuIO.
36    o add "_d 0" to real constant of pkg/cfc subroutines ;
37       update exp. cfc_exemple & tutorial_cfc_offline output files.
38    o multi-threading and IO:
39      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
40        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
41      - barrier before and after reading.
42      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
43      - avoid using MDS_WRITELOCAL for LAND pkg output.
44      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
45        common-block variables ; Allows multi-threading with master-thread IO.
46    o change default MAX_NO_THREADS from 32 to 4 ;
47      and stop cleanly when MAX_NO_THREADS is too small.
48    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
49    
50    checkpoint58m_post
51    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
52       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
53    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
54       keep global_ocean.90x40x15 (for AD testing) with former secondary test
55       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
56    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
57        add MITgcm_tutorials (= code + all the tutorials)
58    o ecco, option to compute cost for total ssh (mean+anom)
59    o consistent with addition of ptracer and ssh in pkg/profiles
60    o profiles: adding ptracer and ssh
61    o testreport: change multi-test output-file name
62      (from output.txt.{name} to output.{name}.txt)
63    o profiles: now ok for mutli-tiles case
64    o seaice: add 4 parameters for different advection schemes for area,
65      (effective) seaice thickness, enthalphy, and snow height. Their default
66      is the standard parameter SEAICEadvScheme
67    o calc_gw:
68     - add cosFacU in zonal viscous flux (harmonic.visc.).
69     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
70       of tutorial_plume_on_slope.
71    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
72    o calc_gw: true flux-form, account for horizontal grid spacing.
73      update rotating_tank results, but not plume_on_slope (affected at
74      truncation level, 11 digits).
75    
76    checkpoint58l_post
77    o calc_gw:
78     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
79     - remove side-drag for now (need to fix it); update plume_on_slope results.
80     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
81    o commit code to make SST/SSS weights spatially variable
82      (based on either variable in-situ or variable initial T/S weights)
83    o pkg/ecco:
84      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
85        now based on horizontally varying weights wthetaLev, wsaltLev
86      * cost_averagesflags now returns year indices in addition to day, month
87      * sflux balance is performed on annual basis
88        (sflxumm, sfluxmm2, bal_sfluxmm)
89      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
90        including separate counting and multipliers
91    o pkg/rbcs
92      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
93    
94    checkpoint58k_post
95    o testreport:
96     - always build in dir. "build" (if not there, mkdir build instead of building
97       & running in input)
98     - run in dir run (if it exists), in build otherwise.
99     - call prepare_run (if input/prepare_run exists)
100     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
101    o pkg/exf modifications to interpolation and rotation routines for more
102       reasonable treatment of North Pole singularity: for tracers North Pole
103       value is set to northernmost zonal-mean value, for zonal velocity it is
104       set to zero, and for meridional velocity it is set to northernmost value.
105    o pkg/exf/exf_check_range.F
106     - add tile index to diagnostics and move stop statement to the very
107       end of the routine.
108    o pkg/diagnostics: (diagnostics_main_init.F)
109      define title of isomorphic variables according to the current config.
110    o pkg/thsice with pkg/seaice dynamics:
111    - fix domain of computation (interior only, required for exf) and do exchanges
112    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
113    o towards a standard way of dealing with multi-threading in MONITOR
114      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
115    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
116       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
117    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
118    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
119    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
120       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
121    o tracer advection:
122     - clean-up and simplify calc_common_factors.F
123     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
124       advection subroutine (but still not used within DST advection S/R)
125    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
126    
127    checkpoint58j_post
128    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
129      from file (collects calls previously in FORWARD_STEP)
130    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
131    o adjoint store dir. adjusted accordingly
132    o genmake2
133      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
134    
135    checkpoint58i_post
136    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
137      on wind stress (SEAICEstressFactor defaults to 1.)
138    o Total number of Timers is finite (<=40): comment out 2 non-essential one
139      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
140    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
141      on CS-grid: no longer loosing mass.
142    o exf & curvilinear-grid: no longer modify longitude xC & xG.
143    o pkg/ggl90: fix sloppy output and fix a bug
144    o pkg/seaice: added SEAICEuseEVPpickup parameter
145      - Set to false in order to start EVP solver with
146        non-EVP pickup files when using SEAICEuseEVP
147      - fix sign error in diffusion in seaice_calc_rhs
148    
149    checkpoint58h_post
150    * Modifications for bottom topography control
151      o replace hFacC by _hFacC at various places
152      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
153      o add non-self-adjoint cg2d_nsa
154      o update autodiff support routines
155      o re-initialise hfac after ctrl_depth_ini
156      o works for 5x5 box, doesnt work for global_ocean.90x40x15
157    * Adding verification for 5x5 box (4-layer) bottom topography control
158    
159    checkpoint58g_post
160    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
161       used for mean seasonal cycle, mean diurnal cycle); add an example
162       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
163    o pkg/ggl90:
164      - add parameter (minimum surface kinetic energy)
165      - fix bug (avoiding division by zero)
166    o couple pkg/thsice to pkg/seaice:
167      - modify advection in seaice to accomodate new scalar fields to be advected
168      - only muliDimAdection scheme work with seaice/thsice
169      - mapping of thsice-variables to seaice-variables, back and forth
170      - does not break the verification experiments, but does not give the
171        desired results either
172    o pkg/seaice
173      - make (default) second order advection a bit less confusing?
174    
175    checkpoint58f_post
176    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
177      to pkg/seaice):
178      - new routines thsice_map_exf and thsice_get_exf provide the interface
179      - add an additional formal parameter to thsice_solve4temp
180    o pkg/exf:
181      - add new fields wspeed, snowprecip (to be able to couple to thsice)
182      - correct Stefan-Boltzmann constant
183      - new parameter for longwave surface emittance
184      - separate some stuff from exf_bulkformulae into new routines  
185        exf_radiation, exf_wind
186      - add new parameters and constants: longwave emissivity for ocean, ice
187        and snow, evaporation parameters over ice
188      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
189        either wind from stress or stress from wind
190    o pkg/thSIce:
191    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
192    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
193       and THSICE_CALC_THICKN
194    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
195    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
196      to make debugging easier.
197    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
198    o pkg/bulk_force:
199      - clean-up comments and parameters ;
200      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
201    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
202      generate new output for test-experiment: aim.5l_cs.thSI
203    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
204      testreport accordingly
205    
206    checkpoint58e_post
207    o SEAICE_CGRID adjoint done
208    o R_STAR adjoint implemented.
209      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
210      * need to sort out init. of h0facc, etc.
211    o Make pkg/profile fully independent of ecco,cost, etc. stuff
212      to be able to use it in pure forward.
213    
214    checkpoint58d_post
215    o upgrade simple test-experiment to tutorial example:
216     step.1: duplicate the experiment and (step.2) will remove the old copy.
217      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
218      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
219      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
220      tutorial_global_oce_biogeo    <- copy of dic_example
221      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
222      tutorial_plume_on_slope       <- copy of plume_on_slope
223      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
224      tutorial_global_oce_optim     <- empty for now (David ?)
225      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
226     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
227    o correct a sign problem in cost_scat.F
228    o obcs and ptracers: fix boundary conditions for advections schemes
229      with larger stencil
230    o thsice adjoint: start
231    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
232      completeness
233    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
234      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
235    o ptracers adjoint:
236      * avoid extensive recomputatations
237      * fix missing re-init. of gptr (missed by TAF)
238    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
239      me to turn off the excessive output to STDOUT that this package produces
240    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
241      and add those terms in Vector-Invariant formulation.
242    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
243      if the control period (xx_hfluxperiod etc) is 0
244    o in profiles pkg, clean routines and fix details
245    o in ecco pkg, reading ssh data:
246      fix problem in case the model does not start at iter0=0
247    o fix mnc-pickup/restart for ptracers
248    o new package prifiles:
249      code to compute profile-based cost by Gael Forget
250      (modifs in ecco, ctrl, autodiff)
251    o Benign bug fix in initialization (spotted by M. Mazloff) of
252      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
253    
254    checkpoint58c_post
255    o adjoint: finish NLFS adjoint and provide reference output in
256      verification/global_ocean.90x40x15/results_ad_nlfs
257    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
258      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
259      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
260      with SEAICE_CGRID defined.
261    o move calendarDumps from "data" to "data.cal" and clean-up the code
262      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
263    o add useEXF & useCAL flags (for now, set in hard-coded way)
264    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
265      (were missing in NH mode, and wrong in quasihydrostatic mode).
266      waiting for Chris updated version of calc_gw to add those CALLs.
267    o fix bug in quasihydrostatic S/R ;
268      add a test for this option: global_ocean.90x40x15.qshyd
269    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
270      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
271    o add on/off flag useOffLine for package OFFLINE
272    o seaice:
273      - modify advection so that it works also on the C-grid
274      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
275        problem in multi-tile runs with C-grid
276      - add flags for clipping ice velocities and/or masking solver forcing
277      - fix drag (ocean on ice) formulation and a bug that caused noise in the
278        C-grid solver
279      - added a few comments to seaice_diffusion.F
280      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
281        are now exclusive)
282      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
283        required re-ordering the code a little:
284       + make DAIRN global variable (defined in SEAICE)
285       + move computation of the viscosities eta and zeta into a new separate
286         routine (because I need to recompute them in seaice_ocean_stress.F)
287    
288    checkpoint58b_post
289    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
290      update output.txt of exp. aim.5l_cs.thSI
291    o various mnc cleanups and improvements:
292      + shrink lookup tables by factor of ~4
293      + better error reporting when running out of lookup space
294      + able to handle longer path/file names (up to 500 chars)
295    o adjoint:
296      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
297      - TBD: "hidden" mom_vecinv recomp. in dynamics
298    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
299     (allow to differentiate between forcing components using new integer flags:
300      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
301     and add new flag to put Dissipation tendency out of Adams-Bashforth.
302    o ecco
303      - enable trend removal from SSH anomaly obs.
304    o adjoint
305      - a fix for PmEpR when #undef EXACT_CONSERV
306      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
307      - try to fix "hidden" recomp. in forward_step for NLFS
308        (NLFS seems broken sometimes after I checked it in)
309    o seaice:
310     - add c-grid version of the dynamic solver:
311       + three new routines that are the c-grid substitute lsr, dynsolver
312         and ostres
313       + put a few fields that were local to dynsolver into global common
314         blocks, so that I can move the computation of stresses etc into
315         seaice_lsr (saves coding but may break the adjoint).
316     - replace more hardwired parameters by runtime parameters
317     - add ice masks that mask the rhs of the implicit solvers where there
318       is no ice (commented out in seaice_dynsolver, because i am not sure
319       if this works properly), eventually this should replace the clipping
320       of ice velocities in seaice_dynsolver to +/-40cm/s.
321    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
322      include it only where its needed
323    o move balancing of fluxes before the call of external_forcing_surf
324    o seaice:
325      - correct units of turning angles (now they are really in degrees)
326      - move computation of GWATX/Y out of main routine into dynsolver
327      - initialize GWATX/Y in seaice_init
328    o Apply mask on Fresh-Water flux (needed for SSH forcing).
329      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
330    o seaice: add runtime flags for turning angles (default to zero)
331    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
332      and trend from exf forcing and ctrl control adjustments
333    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
334      (since checkpoint57x_post)
335    o change the default rotation period to 86164.s = the Earth rotation
336    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
337      and based on a reference stratification. Tested within hs94.cs-32x32x5.
338    o seaice advection: add code for choosing between the default (2nd order
339      central differences) and multiDim advection schemes provided by
340      pkg/generic_advdiff
341    o seaice:
342      - removed all references to SEAICE_GRID.h fields from
343        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
344        (cubed-sphere configuration will change a little)
345      - grid computations in seaice_init are obsolete now.
346      - cleaned up code a little so that is easier to read (hopefully).
347      - added new (better?) discretizations of default advection and diffusion
348        (turn on with SEAICEuseFluxForm)
349      - replace 1 in 3d global fields by kSurface in growth.F
350      
351    checkpoint58a_post
352    o seaice:
353      - bug fix in advect.F
354    o shelfice:
355      - separate shelfice load anomaly from pload (breaks with time
356        dependent forcing), => introduce constant field shelficeLoadAnomaly.
357        Its default is 0., but it may be computed more cleverly from (unknown)
358        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
359        done offline. A good approximation of the pressure load anomaly is
360        necessary to avoid large initial adjustment processes underneath
361        deep-reaching shelfice.
362      - small fix in ISOMIP shelfice_thermodynamics
363      - add more sophisticated thermodynamics of Hellmer (1989), this is
364        now the default
365      - give a few constants more intuitive names
366    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
367      if bulk formulae are used in long integration (especially EmPmR). Turn
368      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
369      if balancePrintMean, the imbalance that is substracted is printed to
370      STDOUT.
371    o fix bug (typo) in obcs_apply_eta.F
372    o add a new package shelfice which enables us to model the circulation
373      underneath shelf-ice with draughts of hundreds of meters.
374     - works
375     - to do: + include improved thermodynamics
376              + check whether kSurfC (from model/inc/SURFACE.h) can be used
377                instead of new field kTopC
378              + can we use topoFile, Ro_surf and existing code in ini_depth.F
379                instead of new field R_shelfIce and new code in ini_depth.F
380                and ini_mask_etc.F?
381              + adjust vertical mixing schemes?
382    o seaice pkg:
383     - add a cpp-flag to include a simple formula for a salinity dependent
384       freezing point of sea water at the surface
385     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
386       meridional stresses are now different (and hopefully correct)
387    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
388       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
389       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
390    o pkg/diagnostics: add options and parameters for regional-statistics
391       diagnostics ; define regions by reading a region-mask from a file
392       (might add other options later)
393    o pkg/bulk_force:
394     - add option and parameters to use AIM surface-flux formulae.
395     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
396       others forcing fields (defined in PARM05, parameter file "data") are loaded
397       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
398     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
399     - use the right EXCH call for uwind,vwind (to work on CS-grid).
400     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
401       and parameters (note: calcWindStress replaces .NOT.readwindstress).
402     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
403    
404    checkpoint58
405    o add "--embed-source" option to genmake2 which, when the supporting
406      tools can be compiled (as determined by genmake2) will turn on the
407      embed_files package which then embeds the entire MITgcm source code
408      (*.[fFhc] + Makefile) used for the build within the executable
409      - requested by CNH but off by default
410      - adds a paltry <9MB to the mitgcmuv executable in most cases
411      - only writes the output when useEMBEDSRC in eedata is true
412    o clean up 3-dim. relaxation codes:
413      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
414      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
415      * Thanks to Tom Haine for testing!
416    
417    checkpoint57z_post
418    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
419      affects output (@ truncation level) of exp. plume_on_slope ; updated.
420    o fix the pickup behavior for obcs in combination with ptracers
421    o fix a bug in ptracers_external_fields_load
422    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
423      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
424    o transfered surface NH pressure to eta field (if exactConserv).
425    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
426         and update lab_sea output.txt file.
427    o completing 3-dim. relaxation code: additional term
428         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
429      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
430      * At compile time, in "EXF_OPTIONS.h" set
431          #define  ALLOW_CLIMTEMP_RELAXATION
432          #define  ALLOW_CLIMSALT_RELAXATION
433      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
434          tauThetaClimRelax3Dim = 15552000.0,
435          tauSaltClimRelax3Dim  = 15552000.0,
436      * 3 cases:
437          1) Use a constant-in-time 3-dim. field
438          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
439          3) Real-time relax. to time-evolving prescribed field
440    o Adding Laplacian-type smoothness constraint on
441      initial and boundary (forcing) controls (ic, bc)
442      * enable at compile-time via
443        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
444      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
445      * Absolute scale somewhat unclear so far
446      * no area weighting was included since no other cost term does so far
447    
448    checkpoint57y_post
449    First step for a NLFS adjoint
450    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
451    o new init. routines for calc_r_star, calc_surf_dr
452    o still need to deal with ini_masks_etc
453    o testreport seemed happy
454    checkpoint57y_pre
455    
456    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
457    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
458    o add new offset feature to offline pkg (plus minor cleanup)
459    o cfc fixes for final year of integration
460    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
461      be in GCHEM_OPTIONS).
462    
463    checkpoint57x_post
464    o fix testreport Pb in multiple test experiment.
465    o cleanup our namelist syntax in verification:
466      - make it more F95 standards compliant (some work still needed)
467      - allows the vast majority of our tests to work with gfortran
468    o Non-Hydrostatic:
469     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
470     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
471    o Allow to apply AB on T,S rather than on AB(gT,gS):
472     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
473     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
474       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
475     - need a "clever" read_pickup to restart from the other AB formulation
476    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
477    o remove some unused variables (reduces number of compiler warnings)
478    o adjoint
479      * Disable useVariableViscosity for adjoint for time being
480        (there are a number of extensive recomputations)
481      * Initialize certain variables needed for adjoint
482    
483    checkpoint57w_post
484    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
485                 fix the singleCpuIO RS version of MDSWRITEFIELD
486       and add a WARNING if using globalFiles=T with multi-processors.
487    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
488      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
489    o tracer advection scheme:
490      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
491       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
492       was not very convenient).
493      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
494       (further tests needed for the implicit DST & Flux-Limiter schemes).
495    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
496      and sRef for convenience, handy, when you want to initialize
497      ptracers in a large domain with a constant non-zero value. Also,
498      untangle ptracers_init.F a little.
499    
500    checkpoint57v_post
501    o change dome exp. to use variable viscosity in side-drag terms.
502    o remove all the files from the cfc_offline test since they are now
503      incorporated into tutorial_cfc_offline which has been producing
504      identical results for a few days of testing
505    o add new parameter: sideDragFactor to enable half-slip-side BC
506      and change side-drag S/R to use viscosity from mom_calc_visc
507      (can switch back by setting sideDragFactor=0.); affects results at
508      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
509       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
510    o vorticity & strain are now computed without masking, to account for
511      no-slip-side BC in variable viscosity calculation ; mask is applied
512      anyway later on, before computing advection/coriolis terms.
513    o modify exp4 to test new obcs support for reading from external files
514      and for passive tracers
515    o fix behavior of ptracers_monitor when monitor output is written to a
516      netcdf-file; still not independent of monitor.F (writes in the same
517      file).
518    o change default value of tRef (put a uniform, meaningful value for ocean
519      & atmos) and initialize sRef (was missing, as Martin mentioned).
520    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
521      to be proportional to enstrophy dissipation length.  Thus,
522       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
523      This is now consistent with Smagorinsky and with the manual.
524    
525    checkpoint57u_post
526    o OBCS and PTRACERS: add open boundary support for passive tracers
527      - either use homogenous (pseudo) v.Neumann conditions or prescribe
528        OB-values from file; this is not different from the way theta and salinity
529        are treated
530      - however, Orlanski-radiation conditions are not supported, and the model
531        will stop if you use pTracers and Orlanski at the same time.
532      - beefed up the rountine obcs_external_fields_load: now only those open
533        boundary values are overwritten with values from files for which there
534        are really files, otherwise the OB-fields remain untouched. This makes
535        it possible to use different OBs at different ends of the domain (as
536        with EXF)
537    o reduce number of exch calls in shap_filt (s2).
538    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
539      truncation level) 4/5 MLAdjust test results (11&12 digits match).
540    
541    checkpoint57t_post
542    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
543    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
544      same truncation, independent of the face number: affects affects several
545      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
546    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
547      note that biharmonic viscosity + no-slip was not tested in any experiment.
548    o fix bug in non-linear free-surf side-drag ; generate new output for
549      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
550    o make mnc honor the writeBinaryPrec flag for most kinds of output
551    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
552    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
553      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
554    o add brackets in multi-terms sum to get same truncation, independent of
555      the face number (manage to get exactly same value of gU,gV at the cs-edge)
556      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
557    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
558      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
559      a maximum grid-scale Reynolds number.  Also, changes all length calculations
560      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
561      Suggested values of viscosity parameters found in mom_calc_visc.
562      Many new viscosity diagnostics available.
563    
564    checkpoint57s_post
565    o Add clearing-house for viscosity calculations, mom_calc_visc and
566      correct numerous bugs in LeithD and Smagorinsky discretizations.  
567      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
568      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
569      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
570      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
571      The Strain-Tension form is now called with useStrainTensonVisc=.true.
572      ViscAhStrain and viscAhTension are now retired.
573    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
574    o In response to JMC's bug report, genmake2 now ignores any soft-links
575      that it finds in the *current* directory when searching for files.
576      Soft-links found in any other source directories will still work as
577      they did before.
578    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
579      a C routine to unlimit the stack size
580    o mnc-ify pkg/aim snapshot vars
581    o mnc-ify pkg/land as requested by Daniel
582    o various changes to mnc including:
583      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
584      - output can now be grouped so that all files within a group
585          change the ITER portion of their names in lock-step together
586      - can now read ("global") PER-FACE (in addition to PER-TILE) files
587          and works with both EXCH1 and EXCH2 (but needs more testing)
588      - writing works for all verification test cases w/ g77 on Linux
589    
590    checkpoint57r_post
591    o make MNC variable initialization happen earlier
592    o add diagnostics for (almost) each term of the momentum Eq.
593    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
594    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
595    o remove MINIMAL_TAVE_OUTPUT option ;
596      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
597    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
598      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
599    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
600    o add time-dependent SST, SSS control
601    o cost terms in ecco/ modularized (new cost_generic.F)
602    o cost_averages routines are modularized (new cost_averagesgeneric.F)
603    o new infrastructure for seaice model vs. obs misfits in seaice/
604      * driver from the_main_loop.F is seaice_cost_driver.F
605      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
606      * gradient check in Exp. 6a of natl_box_adjoint/
607    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
608      (see README file)
609    
610    checkpoint57q_post
611    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
612    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
613      - bug was reported by Jean-Michel and Ian Fenty
614    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
615      update exp. cpl_aim+ocn output.
616    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
617      Needed for high-res. runs with large global files
618      to be able to limit tapelev size
619    o Changed some tests for adjoint:
620      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
621      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
622      * global_ocean.90x40x15/ back to default 3-level checkpointing
623    o Modifications to enable scripted COMMON to MODULE conversion
624      * verification/OpenAD/code/ has necessary scripts and description;
625      * converts, compiles and runs successfully;
626    
627    checkpoint57p_post
628    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
629    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
630      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
631    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
632    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
633      (was already the case for dissipation with mom_vecinv,
634       and also the case for grad.PhiHyd when staggered-timeStep)
635      This will allow to put dissipation out-off the AB time-stepping.
636     Unfortunately, affects truncation error. Update output of exp. that "fails"
637      (cg2d matching number) and leave the others for later: front_relax(10),
638      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
639      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
640    
641    checkpoint57o_post
642    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
643      (2) its ready to be documented during the 20050801 DocFest
644    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
645      for ideal_2D_oce and lab_sea on linux_ia32_g77
646    o set to #undef CTRL_SET_OLD_MAXCVARS_30
647      in global1x1_tot/code_seaice_adj to access indices 32, 33
648      (worth another tag)
649    
650    checkpoint57n_post
651    o adding precip control xx_precip 32
652    o adding swflux control xx_swflux 33
653    o Replacing 10 forcing penalty cost routines by 1 generic.
654    o Implementing partitioning in time-mean and variable adjustment
655      for atmos. state.
656    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
657    o in natl_box_adjoint:
658      * updated exp 1 to 10
659        (but does not have time-mean vs. variable split results yet)
660    o updated global1x1/*_seaice_adj/
661      to incorporate latest changes
662    o enable useSingleCpuIO for mdsio vector routines
663      (applies in particular to tapelev I/O)
664    o removed inefficient K-loop in all active_file*control*.F
665    
666    checkpoint57m_post
667    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
668      and advect_cs (use EXCH-2 and standard cs-32 grid files).
669    o pkg/exch2: filling of face-corner halo regions is optional
670      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
671    
672    checkpoint57l_post
673     tag before updating tutorials (pre-release-2)
674    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
675       for output and interpolation of input fields onto model grid)
676    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
677       Affects results of exp. rotating_tank ; update output.txt.
678    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
679          and taking the square quantity and/or using a fraction-weight field.
680    o fix aim_diagnostics_init.F mate numbers.
681    o add mnc output capability to diagnostics/diagstat and update
682      our cvsignore files for the ACSII output generated
683    
684    checkpoint57k_post
685    o lab_sea now uses diagnostics package and provides a suite of
686      new EXF diagnostics output.
687    
688    checkpoint57j_post
689    o exf
690      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
691        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
692        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
693      * extended diagnostics output
694        - now includes all EXF variables
695        - hs, hl moved to common block
696        - separate S/R for diagnostics, called after ctrl vector is added
697        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
698        - EXFqnet contains true Qnet (i.e. includes qsw)
699      * updated verif. lab_sea, global_with_exf
700      * Rearranging hflux (exf_mapfields -> exf_getforcing)
701        to ensure that diagnostics sees a true EXFqnet
702    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
703    o diagnostics pkg: change pointers so that 1 diagnostic can be used
704      several times with different frequencies.
705    o mnc-ify the thsice package as requested by Daniel Enderton
706      - the monitor--MNC output needs work
707      - many attributes need to be added (most are currently blank)
708    o mnc-ify theaim_v23 package as requested by Daniel Enderton
709      - many attributes need to be added (most are currently blank)
710    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
711    o add Sadourny like discretization to the 4th.O vorticity advection scheme
712    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
713      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
714         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
715    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
716     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
717    
718    checkpoint57i_post
719    o Diagnostics package was changed: diagnostic allocation is now deactivated
720      by setting an empty file name in the namelist (used to be by setting 0 frequency)
721    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
722      add 1rst Order upwind vertical Shear.
723    o add a quick fix for A/B checkpointing in OFFLINE mode
724    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
725      end-run around the C/Fortran linking horror in eesup/src/timers.F
726    o added pkg/runclock: allows user to terminate run based on wall clock
727    o added non-hydrostatic scaling parameter: nh_am2
728    o pkg/my82: futile attempt to make results compiler-independent by adding
729      some "_d 0", etc. no effect.
730    o for mnc output, fill the 'T' coordinate var with myTime and create a
731      separate 'iter' variable for iteration count
732    o pkg/diagnostics:
733      add new capability: output of Global/Regional & per-level statistics ;
734      tested against monitor output (including land & thSIce) on various exp.
735    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
736    
737    checkpoint57h_done
738      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
739      data.diagnostics, data.gchem, data.ptracers) is done.
740    
741    o pkg/diagnostics: prepare for Global/Regional statistics.
742      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
743    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
744      and rename it: DIFFERENT_MULTIPLE
745    
746    checkpoint57h_post
747    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
748    o pkg/diagnostics: change output frequency, now in seconds (instead
749      of Nb of iterations). This requires to change data.diagnostics.
750    checkpoint57h_pre
751    
752    o in mnc, let the user create the output dir if both mnc_outdir_date
753      and mnc_outdir_num are false
754    o add fflags() to pkg/diagnostics which allows one to specify, on a
755      per-file basis, the file precision [default behavior is unchanged]
756    o added diagnostics to pkg/kpp, including computation of mixed layer
757      depth based on a temperature/density criterion
758    o updated verification/natl_box to test the new pkg/kpp diagnostics
759    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
760    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
761    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
762      not mnc -- this mistake was found by JMC and is now corrected
763    
764    checkpoint57g_post
765    o add Adams-Bashforth 3rd Order time stepping:
766      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
767      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
768    checkpoint57g_pre
769    
770    o make lambda[Theta,Salt]ClimRelax spatially varying
771      (default remains spatially uniform constant based on tau)
772    o added new control variables
773      * init. uVel, vVel, etanN
774      * lambda[Theta,Salt]ClimRelax
775    o separate masks used for ctrl_pack/unpack 'from write_grid' output
776      (suggested by G. Forget)
777    
778    checkpoint57f_post
779    o add parameter "baseTime" = model base time = time at iteration zero
780      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
781      account for baseTime shift
782    o move Coriolis arrays from PARAMS.h to GRID.h
783    checkpoint57f_pre
784    
785    o mnc-ifying the seaice package
786    o introduced an alternative length scale calculation for use in the limiting
787      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
788    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
789    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
790      as well as grad(vort3).  Made it compatible with both approximate form
791      for the cubed sphere and full form of these gradients.  Added flag
792      useFullLeith to select between approximate and full form.  
793    o add "d0" in getcon.F to reduce differences between compilers/platforms
794      update output.txt of exp. fizhi-gridalt-hs
795    o change port_rand funtion to allow to set the seed.
796    o fix obscure MNC bug involving conversion between reals and integers
797      - it caused no problems with certain (eg. gcc, ifc) compilers but the
798        new version is now more standards-compliant
799    o adjoint-related modifications
800      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
801      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
802      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
803    
804    checkpoint57e_post
805    o Adding eddy stress controls a la Ferreira et al.
806    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
807    
808    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
809      update output.txt of exp. fizhi-gridalt-hs
810    o add more "Z" dimensions and associated coordinate vars to MNC
811    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
812    o parameter calendarDumps: when set, approximate months (30-31 days) and years
813      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
814      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
815      months and years.  Requires pkg/cal.
816    o diagnostics: add pickup functionality
817      - off by default for backwards compatibility
818      - current version only uses MDSIO -- MNC will be added
819    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
820    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
821    
822    checkpoint57d_post
823    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
824    o modify verification/ideal_2D_oce so that it tests the creation of mnc
825      output from the diagnostics package
826    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
827    o make genmake2 more portable by using ".$FS" instead of ".f" for more
828      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
829    o add coordinate variables to the MNC output from the diagnostics package
830    o change MNC-flags default value: true when useMNC=TRUE
831    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
832      the ability (off by default) to read the grid information using MNC
833    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
834    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
835    o do snap-shot diagnostics at the middle of the time-interval (instead of
836      at the end).
837    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
838      new test for AIM with thSIce + slab-ocean
839    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
840    o move state variable diagnostics to the beginning of the time step ;
841      (note: still needs some work specially for snap-shot diagnostics)
842      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
843    
844    checkpoint57c_post
845    o Change testing option (-ieee) to get closer agreement between g77 & ifort
846    o generate new output.txt files on faulks with g77 & the new -ieee option
847    checkpoint57c_pre
848    
849    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
850      update output.txt of exp. global_ocean.90x40x15
851    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
852      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
853    o add saltFlux(+File) forcing capability with periodicExternalForcing
854    o allow to use pkg diagnostics for GM-Redi & ThSIce output
855    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
856    o improvements for the MNC output from DIAGNOSTICS:
857      - correct handling of the unlimitied dimension
858      - all dims now have associated coordinate variables
859      - variables located at U, V, and Corner ("Z") points are now written
860        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
861        *all* data points are output
862    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
863    o added pkg/seaice/seaice_monitor.F
864    o mdsio_readfield.F can now read files visible only to master MPI process.
865    o pkg/seaice: some test code for ice-modified ocean stress
866    o exf_getffields interpolation defaults to bilinear for all scalar forcing
867      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
868      spurious negative numbers for precipitation and humidity.  Will cause
869      some small numerical differences for integrations using pkg/exf/exf_interp.F.
870    o pkg/ctrl/
871      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
872        May be enabled via doPackDiag
873      *  introduce z-scaling of
874         + gradient (doZscalePack) and
875         + control (doZscaleUnpack)
876    o pkg/mdsio/
877      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
878      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
879    
880    checkpoint57b_post
881    o simplify options in diagnostics_fill arguments (remove weird combinations)
882    o fix MNC coordinate variables so that they now contain per-face index
883      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
884      general, EXCH2 grids are only aligned to a "local" coordinate system
885    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
886    o Implement instantaneous output within pkg diagnostics:
887      setting a negative frequency in data.diagnostics produces
888     "snap-shot" output (as opposed to time-average if freq > 0)
889    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
890      NOTE: change ptracer diagnostics name: use 2 characters to work with
891            more than 9 tracers. Add also diagnostics of advect & diffus flux.
892    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
893      becomes the coordinate variable for the 'T' dimension
894    o add CF-style coordinate variables to MNC
895      - just a first cut:  numbers are meaningless on the cubesphere and
896        missing along the T axis but otherwise it works!
897    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
898    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
899    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
900      this is based directly on what the model compute, so that the content of
901      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
902    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
903    o clean up build options files for SunOS, in particular
904      - remove -traditional from xmakedepend
905      - change -xarch=v9 to -xarch=native for f77
906      - restore use of make (not gmake)
907      - add CC=gcc if using g77
908    o changes per discussion of AM, JMC, & EH3 today:
909      - move redundant "grid" variables out of "state" -- in preparation of
910        creating proper CF-style coordinate variables and in recognition
911        that any/all grid variables can be easily copied (eg. w/NCO) from
912        the grid files into any of the other NetCDF files
913      - *always* output grid variables with MDSIO (this will eventually be
914        changed)
915      - output MNC grid file if useMNC is true
916    o every instance of _END_MASTER() has been found and replaced with
917      _END_MASTER( myThid ) in order to satisfy certain picky Sun
918      preprocessors
919    o re-arrange diagnostics pkg initialisation:
920     - allow each package to extend the available diagnostics list
921     - add some checking and fix small problems (multi-threaded, ...)
922     - new S/R diagnostics_fill (replace fill_diagnostics):
923       look through the short list of active diag. (instead of the long list)
924       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
925    
926    checkpoint57a_post
927    o this set of changes restores TAMC compatibility
928      tested for global_ocean.90x40x15 adjoint on trough
929      (what a pain)
930    
931    checkpoint57a_pre
932    o some modifs in tools/build_options for sunos
933    o call ctrl_pack for ctrl at end for optimcycle=0
934    
935    checkpoint57
936    o add horizontal bi-harmonic viscosity for vertical velocity
937      - new parameter viscA4W (defaults to viscA4)
938      - affects only non-hydrostatic code
939      - to be done: no-slip lateral boundary conditions
940    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
941    o implement Implicit Vertical advection for pTracers
942    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
943      (implemented also for implicit vertical diffusion & advection)
944    o OBCS: extend application of tracer open boundary conditions
945      to a strip beyond the boundary of width Olx/Oly
946    o add call monitor to TAF set of required calls (flow directives)
947      and include in natl_box_adjoint
948    o untangle a few ifdefs related to cost, ctrl, autodiff
949      untangel a few ALLOW_ECCO_OPTIMIZATION
950    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
951      (theta2, salt2 in ecco_cost_weights)
952    
953    checkpoint56c_post
954    o OBCS as control variables
955      - update ctrl_ad_diff.list, obcs_ad_diff.list
956      - remove balance of obcs controls from default
957      - fix index bug nobcs in ctrl_init
958      - fix dummy fields filen in ctrl_pack
959      - add dummy weights for obcs
960    o lsopt: comment out fort.94 output
961    o optim:
962      - remove unnecessary header files
963      - adjusted namelists
964      - add xerbla.F to Makefile
965    o exf:
966      - multiple modifications of exf_check_range
967      - unit change in exf_init_runoff from [m/year] to [m/s]
968    o mdsio:
969      - i/o-vector change debugLevel from debLevA to debLevB
970    
971    checkpoint56b_post
972    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
973      is called from DO_THE_MODEL_IO
974      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
975      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
976      - clean up PTRACERS_WRITE_TIMEAVE a little
977    o add another verification experiment that tests both the cfc-pkg and
978      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
979      reactive tendencies treated inline with regular timestepping
980    o testreport previously did a lousy job of comparing small numbers, so
981      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
982      implemented in the little c-progam tmp_cmpnum.c which is embedded in
983      testreport.
984    o ptracers_monitor: bug fix for MPI
985    
986    checkpoint56a_post
987    o GCHEM: finish reorganizating the package
988      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
989        (introduces another 3D-array for each passive tracer, but only if
990        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
991        gchemTendency is not needed because the timestep is done separately)
992      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
993      - GCHEM is now---more or less cleanly---separate from PTRACERS
994      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
995        so clear to me how that should be done in a general way.
996    o CFC: improve formatting of output in CFC_ATMOS
997    o PTRACERS:
998      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
999        that ALL experiments with ptracers enable can be checked. This makes
1000        GCHEM_MONITOR obsolete.
1001      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1002        monitorFreq
1003      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1004    o add PTRACERS (PTR0[1-5]) to testreport output
1005    o exf_check_range:
1006      * default changed to .TRUE.
1007      * will check values for niter0 if debLevA, every timestep if debLevB
1008      * STOP in exf_check_range if 'out of range'
1009      * range chosen generous to allow for potential extema
1010      TBD: a version with stricter range
1011           permitted range would be runtime parameters
1012    o GMredi:
1013      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1014      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1015      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1016    o GCHEM:
1017      - move call to GCHEM_FORCING_SEP, so that it is now called before
1018        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1019      - introduced a useGCHEM runtime flag and applied it everywhere.
1020      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1021        this flag is now only visible within GCHEM-pkg routines.
1022      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1023        be replaced by a 3D array that is computed before thermodynamics; for
1024        this, the tracer ID iTracer had to be included into the parameter list
1025        of ptracers_forcing
1026      - set up forward_step to call gchem_forcing, that will replace
1027        gchem_forcing_int in ptracers_forcing
1028      - cleaning up
1029    o small cleaning of exch2: remove files that are also in eesupp/src
1030    
1031    checkpoint56
1032    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1033    o mnc: cleanup "full" files--fixes out-of-memory problem
1034    o ECCO-GODAE
1035      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1036      * fully merged and updated from SIO code
1037        windstress sign change affects
1038        - exf_inscal_[u/v]stress
1039        - sign of xx_tau[u/v] adjustments
1040        - signs in cost_scat
1041      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1042      * natl_box_adjoint updated and compressed
1043      * 2-level checkpoint switch added
1044        (tested in EXP. 1 of natl_box_adjoint)
1045      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1046    o SVD
1047      * first complete, non-hacked version for SVD calculations
1048      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1049        performed via direct access files admtlm_vector.it????
1050        (via ctrl_[un]pack)
1051      * optimcycle is used for ARPACK iteration counter
1052        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1053      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1054        and add linear transforms where necessary
1055      * controls are initial/final SST, SSS (can be extended; need to check
1056        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1057    o mdsio: filename info to both stderr, stdout
1058    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1059      from sign change
1060    
1061    checkpoint55j_post
1062    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1063      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1064    o add consistent build directories and .cvsignore files to verification
1065    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1066    o make all subroutines 30 or less characters in length for certain older
1067      compilers to work (a thorough search only turns up two routines in
1068      pkg/ptracers)
1069    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1070      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1071    
1072    checkpoint55i_post
1073    o change arrays for total vertical diffusivity (2.D if explicit,
1074      3.D if implicit) ; each ptracer uses its own background value.
1075    o added mnc/NetCDF output capability to ocn_compon_interf
1076      - added bits to verification/cpl_aim+ocn so that it can run on
1077        ITRDA and other clusters without the mpirun "-wd" option
1078    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1079      configuration
1080    o give MNC the ability to create additional files rather than
1081      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1082      - the default is just less than 2GB which is a practical limit
1083        on many systems
1084    o Compute the non-local term using either KPP vertical diffusivity (=default)
1085       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1086    
1087    checkpoint55h_post
1088    o add verification test "vermix"
1089    o remove all the *_ioinc flags and replace with the single global
1090      outputTypesInclusive flag
1091    o allow to set a vertical profile of vertical diffusivity for T & S
1092    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1093    o useMNC moved from data.mnc to data.pkg
1094    
1095    checkpoint55g_post
1096    o Renaming carbon AD experiments to comply with testreport conventions
1097    o Updating adjoint of Held-Suarez hs94.1x64x5
1098    o Fixing directives for non-ECCO forward_step, after ECCO directives
1099      have been fixed to avoid recomp. of do_oceanic_phys
1100      Works well for global_ocean.90x40x15,
1101      but recomp. issue remains for carbon
1102    o Updating adjoint output for natl_box_adjoint after
1103      pkg/ecco has been modified (see taga c55d_post)
1104    
1105    checkpoint55f_post
1106    o rename to timeave_init_fixed
1107    
1108    checkpoint55e_post
1109    o some delicate re-shuffle of store directives to avoid one
1110      extra call of do_oceanic_physics
1111      affects ecco_the_main_loop.F, do_oceanic_physics.F
1112      checkpoint_lev1_directives.h
1113    o NB: this may break global_ocean adjoint temporarily,
1114      but it is clear how to fix it. Will do later, need this now.
1115    
1116    checkpoint55d_post
1117    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1118    o ecco_cost_weights is modified to 1x1 runs
1119    o modifs to allow observations to be read in as
1120      single file or yearly files
1121    o enable to read exf forcing fields as either
1122      single file or yearly files (flag useExfYearlyFields)
1123    checkpoint55d_pre
1124    
1125    o switch between 2-level and 3-level checkpointing
1126    o add ability of MNC to write local and "partial" (eg. 2D slices where
1127      the full 3D field is never actually stored) arrays to NetCDF files
1128      with the correct (that is, the complete multi-dimensional) set of
1129      array indicies
1130      - used in mom_vecinv() to write the diagFreq output
1131      - tested (demonstrated) in verification/aim.5l_cs
1132    o further mnc-ification
1133      - add verification/lab_sea to the list with mnc setups
1134      - fix undefined mnc v-names in cd_code
1135      - add kpp to mnc output (both snapshot and timeave)
1136    o non-hydrostatic code
1137      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1138        in calc_gw.F
1139      - defaults to viscAh
1140      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1141        friction or Leith) in non-hydrostatic mode, as long as there is
1142        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1143    o pkg/cost
1144      extend simple cost functions to treat time mean quantities
1145      (T,U,V) via cost_accumulate_state from cost_tile
1146    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1147        be 2 times larger than the minimum size the advection scheme requires.
1148        now get a perfect conservation of salt in advect_cs test-exp (updated)
1149    o GGL90 (Gaspar's TKE mixed layer)
1150      - add horizontal diffusion of TKE, requires exchanges in
1151        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1152        default. In OPA there is no horizontal diffusion of TKE but the
1153        mixing coefficients are computed from a horizontal average of TKE of
1154        6 points or so. I think that diffusion has a little more physical
1155        justification.
1156      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1157        was in vain)
1158      - mask tke-variable in ggl90_init
1159    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1160    o fix biharmonic diffusion on CS-grid.
1161    o more obcs stuff
1162      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1163        for reading boundary values. This routine is called from
1164        obcs_prescribe_read
1165      - updated obcs_check
1166      - changed sponge layer relaxation parameter units for days to seconds
1167      - turned off sponge layer by default
1168      - changed argument list of OBCS_CALC to myTime+deltaTclock
1169      - fixed about 35 bugs in obcs_external_fields_load
1170    
1171    checkpoint55c_post
1172    o obcs stuff
1173      - new runtime flags useOBCSprescribe, useOBCSbalance
1174      - re-arranged obcs_calc
1175      - moved exf_getobcs to obcs_prescibe_read
1176        obcs_prescibe_read is called after ORLANSKI stuff
1177        and independent of it (executable can contain all).
1178      - updated obcs_check
1179      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1180        These may be necessary only if tangential velocities are
1181        prescribed at OB, not sure, needs testing.
1182    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1183      which simplifies the calls and passes the ifc check-bounds test
1184    
1185    checkpoint55b_post
1186    o add a 2D scalar, Z location, exchange_2 routine.
1187    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1188      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1189      affects advect_cs results (for the wrong reason): update output.txt
1190    o use a more standard discretization for biharmonic viscosity ;
1191     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1192      affects results of dome set-up: update output.txt
1193    o fix gad_advection.F (CubedSphere part), back to version 1.23
1194    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1195    
1196    checkpoint55a_post
1197    o merged code to
1198      * prescribe/read time-dependent open boundaries
1199        (works in conjunction with exf, cal)
1200      * sponge layer code for open boundaries
1201      * each boundary N/S/E/W now has its own CPP option
1202        (healthy for the adjoint)
1203    
1204    checkpoint55
1205    o up-to-date adjoint of previous breaks
1206      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1207      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1208      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1209      - carbon: * remove tr1-related adjoint verification
1210                * add ptracer as control variable
1211    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1212      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1213    
1214    checkpoint54f_post
1215    o in verification/carbin/ remove experiment related to
1216      ALLOW_PASSIVE_TRACER (array tr1 etc)
1217      code_ad/ input_ad/ results_ad
1218    
1219    o add two new packages
1220      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1221        + subject to optimization (memory)
1222      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1223        + subject to reordering (many GOTOs in the original code)
1224        + so far opps is called for every (i,j) point, and then operates in
1225          the vertical; one may want to reorder the scheme in order operate in
1226          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1227          fields)
1228    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1229      - all verification tests compile and run with linux_ia32_g77
1230      - defaults are compatible with current input files--nothing
1231        should change if you were not previously using MNC
1232      - MNC output has been added in numerous places (eg. timeave)
1233        but there are still a few writes not yet do-able with MNC
1234        (this is in progress)
1235      - flags now allow for either/or/both use of MDSIO and MNC and
1236        documentation will soon follow
1237      - numerous small formatting cleanups for ProTeX
1238    o add version info (via BUILD_INFO.h) to MNC and stdout
1239    
1240    checkpoint54e_post
1241    o add two new packages
1242      - pp81 (Packanowski and Philander, 1981), Richardson number and
1243        stratification dependent mixing
1244      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1245      - these scheme operate in a similar manner as KPP (without ghat, of
1246        course), however there is only one diffusivity that is used for both
1247        temperature and salinity (and passive tracers)ç
1248    o add offline package
1249    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1250      provided by Stephanie Dutkiewicz
1251    o genmake2: add ability to search for C compilers and cleanup test output
1252      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1253    
1254    checkpoint54d_post
1255    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1256    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1257      leading to additional shift by 5 days each year of integration
1258       (i.e. leading to considerable offset over the years)
1259    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1260    o start with no AB and no initial filtering (staggerTimeStep):
1261      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1262    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1263      (external loading & cpl import/export stay in forward_step.F)
1264    o update coupling interface to work with new staggerTimeStep
1265    o change MDSIO ptracers_pickup.
1266    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1267    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1268    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1269    
1270    checkpoint54c_post
1271    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1272      this affects (truncation error) output.txt of test-exp:
1273       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1274    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1275    o change Qnet to always be the net heat flux, (+upward).
1276      affects (truncation error) output of natl_box exp.: updated
1277    o define the max number of passive tracers in PTRACERS_SIZE.h
1278    o start to test mnc routinely in exp0
1279    o add sea-ice loading (sIceLoad) as a new forcing field.
1280    
1281    checkpoint54b_post
1282    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1283       impressive on Altix and Opteron systems)
1284    o diagnostics can now write NetCDF files through the mnc package
1285    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1286    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1287    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1288      affects (truncation error) output of lab_sea & natl_box exp.: updated
1289    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1290    
1291    checkpoint54a_post
1292    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1293    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1294    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1295    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1296      + internal_wave (shift in writing cg2d_ini_res)
1297    checkpoint54a_pre
1298    
1299    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1300      - modified verification/lab_sea and natl_box_adjoint accordingly
1301    
1302    checkpoint54
1303    checkpoint53g_post
1304    o prepare splitting of thermodynamics: store convect.counter in common block
1305    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1306      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1307    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1308    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1309    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1310    o restore adjointability
1311    
1312    checkpoint53f_post
1313    o modifications that affect AIM experiment results (update output.txt):
1314      - no advection of S at top interface Nr (pkg/generic_advdiff)
1315      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1316    o AIM pkg:
1317      - include stability function into surf.Flux derivative relative to Tsurf
1318      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1319    
1320    checkpoint53e_post
1321    o merged cylindrical coord configuration
1322    o added rotating_tank experiment
1323    checkpoint53e_pre
1324    
1325    checkpoint53d_post
1326    o faulks upgraded: re-generate output.txt that have changed:
1327       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1328    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1329    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1330    o added Sadourny discretization of Coriolis
1331      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1332      - re-enabled use of omega3 (useAbsVorticity)
1333    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1334      vector-invariant equations
1335      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1336    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1337      hopefully without new bugs
1338      - still to do: biharmonic friction for non-hydrostatic w
1339    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1340    o regenerated output for global_ocean_ebm (using -ieee)
1341    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1342      of mom_common/
1343      - simple re-arrangement of instructions within computing loop
1344    checkpoint53d_pre
1345    
1346    checkpoint53c_post
1347    o new version of coupler for AIM+thSIce and Ocean models
1348     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1349     - land: change Evaporation of snow
1350     - aim with thSIce: fix bug in snow-precip.
1351    o changes to calc_gw.F
1352     - bug fix for w^2 term near the bottom boundary
1353     - (hopefully) improve the lateral slip boundary condtions for use with
1354        partial/looped cells
1355      - because the bug fix changes two verification experiments anyway (exp5
1356        and plume on slope), change the lateral boundary condition from half slip
1357        to the value of no_slip_sides
1358    o ebm package wasnt quite up to the parallel task. Fixed that.
1359    o Adjoint of EBM package + verification
1360      * TLM OK
1361      * ADM not sufficient accuracy yet (needs further testing)
1362    
1363    checkpoint53b_post
1364    o Commiting new energy balance model to repository
1365      * package is pkg/ebm
1366      * verif. is verification/global_ocean_ebm
1367      * references are in ebm_driver.F
1368    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1369    C        Global thermohaline circulation. Part I:
1370    C        Sensitivity to atmospheric moisture transport.
1371    C        J. Climate 12(1), 71-82
1372    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1373    C        Global thermohaline circulation. Part II:
1374    C        Sensitivity with interactive transport.
1375    C        J. Climate 12(1), 83-91
1376    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1377    C        Destabilization of the thermohaline circulation
1378    C        by atmospheric eddy transports.
1379    C        J. Climate 7(12), 1870-1882
1380    o Will need long integration testing.
1381    checkpoint53b_pre
1382    
1383    o created pkg/mom_common in preparation for variable viscosity code
1384    o renamed and split ini_mnc_io
1385    o pkg/land: only liquid water can diffuse or run-off
1386    o AIM using land: soil wetness availability account for snow
1387    o added printMapIncludesZeros to EEPARMS namelist
1388    
1389    checkpoint53a_post
1390    o restore TAMC compatiility for exf_constants.h
1391      (no usage of _d in .h)
1392    o Additional storing in KPP in an attempt to fix
1393      TAMC problem with adjoint of KPP code.
1394      (no success...)
1395      Identical code works fine with TAF.
1396    o Fixed verification/natl_box_adjoint experiments.
1397      Initial conditions for Experiments 4 and 5 are now
1398      set to "SEAICE_initialHEFF=0", which is more reasonable,
1399      and hence gives results closer to that of Experiment 2.
1400      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1401    
1402    checkpoint53
1403    o stable checkpoint with up to date adjoint
1404      TLM tests only run for 1st grdchk at the moment. Its unclear if
1405      this is a code problem or a problem with resetting code for g_
1406      variables that is being autogenerated wrong.
1407      Otherwise:
1408       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1409       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1410         are both still in chaos following their security messes.
1411    
1412    checkpoint52n_post
1413    o various build (mostly genmake2) changes including:
1414      - ability to build/run more easily within Cygwin and MacOS X
1415      - more complicated Makefiles with a stronger dependence on Gnu Make
1416    o pkg/seaice modifications
1417      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1418        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1419        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1420      - changed proxy for geostrophic velocity and updated
1421        verification/lab_sea/results/* accordingly
1422      - removed ADI dynamic solver from pkg/seaice
1423      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1424        they caused a segmentation fault under certain circumstances
1425      - removed unused field WATR
1426    o bug fix in exf-package:
1427      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1428         now reflect that.
1429    o small fixes in the cal-package:
1430      - set reference date to first of January for the 'model'-calendar
1431      - failing of cal_CheckDate in cal_FullDate now actually results in a
1432        warning
1433    o small modifications in exf-package to increase flexibility:
1434      - change climtempfreeze from a constant to a runtime parameter that
1435        is specified in data.exf_clim (default = -1.9)
1436      - introduce runtime parameter windstressmax (default = 2.0) that is
1437        specified in data.exf
1438    o fix in pkg/thsice:
1439      - update Evap (Tsf changes) to be consistent with Latent heat flux
1440      - maintain snow precipitation unchanged (even if Tsf >=0).
1441     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1442    
1443    checkpoint52m_post
1444    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1445      this does not change any of the results, because myIter=0 in swfrac always
1446      lead to jwtype=2 (the default anyway), but the call makes little sense
1447      as a default
1448    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1449    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1450      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1451    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1452    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1453    o extending useSingleCpuIO option to work with new exch2 I/O format
1454      - old-style, missing-tile I/O is still accessible by defining CPP
1455        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1456    o monitor package can write to NetCDF files and/or STDOUT
1457    o fix re-definition bug in MNC_GRID_INIT_ALL()
1458    o doc/api_reference added
1459      - a framework for building an API Reference Manual using all
1460        the "protex" comments embedded in the code
1461      - see pkg/generic_advdiff, pkg/mnc for examples
1462    o MNC:
1463      - make myThid the last argument for all subroutines
1464      - new default for the grid files: NO halos
1465      - add useMNC and other run-time flags
1466      - separate per-file-group handling of the unlimited dimension
1467      - early initialization of MNC w/ flags read at the eeboot stage
1468        and lookup tables set in initialize_fixed
1469      - write all MNC output to a freshly-created directory
1470    o thermodynamics sea-ice (thsice) is now tested with testreport.
1471    o test exp. advect_cs: use the standard cs32 grid ; update output.
1472    o Added functionality to grdchk:
1473      pick global i,j,k position (or nearest wet) where to perform check.
1474    
1475    checkpoint52l_post
1476    o new land formulation:
1477      a) use ground enthalpy as prognostic variable to ensure exact
1478         energy conservation.
1479      b) account for water temperature and for latent heat of freezing
1480         in all processes (rain, run-off, ground storage)
1481      c) compute surface and ground temperature implicitly.
1482    o aim_v23 modification for new land model:
1483      a) Treat separately land / ocean / sea-ice surface fluxes
1484         to allow implicit computation of land & sea-ice surface temp.
1485      b) add snow precipitation.
1486    checkpoint52l_pre
1487    
1488    o fix problem (when 1 tile is empty) in min/max monitor.
1489    o fix bug in timeAve (u,vZetatave in common block)
1490    o no restoring terms under ice for pkg/seaice
1491    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1492    o bug fix for pkg/seaice pickups
1493    o change MNC call locations and add coordinate attributes
1494    o mask vorticity at the corner ; affects global_ocean.cs output
1495    o fix ini_curvilinear_grid ; test CS experiments with mpi
1496    o aim.5l_cs: modify sea-ice fraction input file ; update output
1497    o exf: Adding simple range check routine for exf fields after read
1498    
1499    checkpoint52k_post
1500    o removed top-level directory "diags"
1501      - we migrated these functions to pkg/timeave a long time ago
1502    o fixed bug introduced in pkg/monitor
1503    o accuracy ctrlprec = 32 insuffient for gradient checks using
1504      averaged fields (I/O via cost_averages)
1505      -> use ctrl.h in active_file*.F to control I/O precision.
1506    o paramter list of CALL ADTHE_MAIN_LOOP
1507    o added initial do_the_model_io to ecco
1508    o set all ...Freq to zero after cost_final
1509      taveFreq, dumpFreq, pChkptFreq
1510    o MAIN and ECCO differentiability restored
1511    
1512    checkpoint52j_post
1513    o fix nchklev in tamc.h for global_ocean...
1514    o Bringing flow and store directives up-to-date
1515    o Really weird thing!
1516      call do_the_model_io from the_main_loop with parameters
1517      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1518      TAF places a faulty re-call of initialise_varia
1519      after cost_final call which should not be there!
1520    checkpoint52j_pre
1521    
1522    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1523      error messages
1524    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1525    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1526      debug output
1527    o modfied mdsio_writefield.F to handle non-global files under exch2
1528    o update AIM Cubed-Sphere exp (aim.5l_cs):
1529      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1530    o update AIM Equatorial Channel exp:
1531      use standard aim_v23 pkg and change the SST fields to be more realistic.
1532    o globalFile now works with exch2
1533    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1534      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1535    o limit timeave output for hi-res integrations
1536    
1537    checkpoint52i_post
1538    o removed CPP_EEOPTIONS.h from verification/*/code
1539    o updated the tiling for global_ocean_pressure
1540    checkpoint52i_pre
1541    
1542    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1543      the old pkg/aim).
1544    
1545    checkpoint52h_pre
1546    o shortened offending lines in exch2_send_rx?.template
1547    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1548    o genmake2: add build & execute test for NetCDF code
1549    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1550      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1551    o added useSingleCPUIO flag to monitor.F and mon_out.F
1552    o added temporary hack for sea-ice dynamics on the cube:
1553      metric terms are ignored and it is assumed that
1554      there is no sea-ice on cube faces 1, 2, 4, and 5.
1555    
1556    checkpoint52f_post
1557    o added exch2 cube routines to pkg/exch2
1558    o modified hs94.cs-32x32x5 to use it
1559    o added new grid files to hs94.cs-32x32x5
1560    checkpoint52f_pre
1561    
1562    checkpoint52e_post
1563    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1564      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1565    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1566      to work with implicit vertical advection and AB ;
1567    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1568    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1569     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1570    checkpoint52e_pre
1571    
1572    o fix bug in impldiff when Nr=1 or Nr=2.
1573    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1574    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1575    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1576      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1577    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1578    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1579    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1580    
1581    checkpoint52d_post
1582    o re-tiled many expts to allow comparison in multi-processor mode
1583      - updated output accordingly
1584      - changed hs94.128x64x5 to use intial T from file rather than use the
1585        random number generator
1586    o add infrastructure in model routines for fizhi and gridalt packages
1587    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1588    o changes to permit hi-res, cubed-sphere, configuration
1589      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1590      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1591      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1592        of surface winds for the cube
1593      (A verification experiment, based on global_ocean.cs32x15, but with
1594       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1595       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1596       complete with example surface forcing files and matlab scripts to look
1597       at the output and compare it with that of global_ocean.cs32x15.)
1598    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1599       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1600       to conform to the common rule.
1601    o check-in the first version of the coupler + interfaces for multi-components
1602       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1603       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1604       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1605       - ocean and atmos. share the same horizontal grid (no interpolation).
1606       - exchanges between component and coupler is done in forward_step
1607    o new verification experiment, cpl_aim+ocn:
1608       coupled ocean - AIM atmosphere on cs32 grid.
1609    
1610    checkpoint52d_pre
1611    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1612    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1613    
1614    checkpoint52c_post
1615    o Fixing OPTIONS files for use of exf:
1616      - ALLOW_ECCO not needed
1617      - ECCO_CPPOPTIONS.h should not be included from
1618        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1619        as has been the case in the past
1620      - All cal/exf related options are currently set in
1621        single header file. Should remain so until we
1622        agree on a consistent new policy.
1623    o Removed all CPP options for cal package.
1624      cal has no more CPP options.
1625    o modified STOREs in GAD_ADVECTION
1626    o corrected key comp. for passkey
1627    
1628    checkpoint52b_post
1629    o new version: "thsice" of thermodynamic sea-ice pkg:
1630     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1631     - modify fluxes but do not change theta directly;
1632     - light cleaning of bulk_force pkg (still needed with thsice).
1633     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1634       + output_thsice.txt to test thsice & bulk_force pkgs.
1635    o put back grid & coriolis monitor output.
1636    checkpoint52b_pre
1637    
1638    o call "do_the_model_io" at the beginning (=> dump initial state)
1639    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1640    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1641      (need info on NUMBER_OF_PTRACERS)
1642    o missing PTRACERS headers in some routines
1643    o default tamc.h in pkg/autodiff supposed to crash
1644      to ensure proper customization
1645    
1646    checkpoint52a_post
1647    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1648      - moved surfaceTendencyTice from pkg/seaice to main code
1649      - subroutine FREEZE_SURFACE now limits only surface temperature
1650        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1651        => new output.txt for global_ocean.cs32x15 & global_with_exf
1652      - keep the old version of FREEZE for backward compatibility;
1653        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1654      - corresponding modifs for TAF directives
1655    o added surface flux output variables to TIMEAVE_STATVARS
1656    o time-averaged output for pkg/ptracers
1657    o fix problem with ECCO-related divided adjoint
1658      snapshot file was missing some ad-variables,
1659      but no warning issued by TAF
1660    
1661    checkpoint52a_pre
1662    o some bug fixes for #undef REAL4_IS_SLOW
1663    
1664    checkpoint52 = ecco_c52_e35
1665    o after testing adjoints of checkpoint51u_post
1666    
1667    checkpoint51u_post
1668    o this is the post-merge tag of the ecco-branch
1669      (needs another clean checkout and re-testing)
1670    o various natl_box_adjoint configs and results
1671      but no input fields
1672    o obcs adjoint not yet merged!
1673    o adding ECCO global 1x1 and 2x2 degree configs
1674    o updated/extended some store directives for seaice
1675    o pkg/ecco now containes ecco-specific part of cost function
1676    o top level routines the_main_loop, forward_step
1677      supersede those in model/src/
1678      previous input data.cost now in data.ecco
1679      (new namelist ecco_cost_nml)
1680    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1681    
1682    checkpoint51t_post
1683    o this is the pre-merge tag of the ecco-branch
1684    
1685    checkpoint51s_post
1686    o cleanup: removed various obsolete #define-s
1687    o pkg/grdchk
1688      - renamed 'ph-grd 3' to 'grad-res'
1689      - merged from ecco-branch
1690        (remaining bug fixes for obcs gradient checks)
1691      - additional high-precision output for testreport
1692        (grep for 'precision_grdchk_result')
1693    
1694    checkpoint51r_post
1695    o cleaned up or removed CPP_OPTIONS.h files
1696    o updated results for some of the tests to reflect the new
1697      optfiles (-ieee: -O0 instead of -O3)
1698    
1699    checkpoint51q_post
1700    o cd_code:
1701      - moved cd_scheme.F -> cd_code_scheme.F
1702      - separate read_checkpoint from cd_code_ini_vars.F
1703      - separated cd_code part from write_checkpoint
1704      - updated AD_SOURCE, generated .flow
1705      - added CD_CODE_VARS.h to the_main_loop
1706      - Moving cd_code specific store dir.s to pkg/cd_code
1707    o ctrl package totally restructured
1708      - pack/unpack now optional and decoupled from
1709        xx_/adxx_ I/O
1710      - ctrl_pack/unpack cleaned
1711        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1712      - confined inclusion of AD_CONFIG.h to where necessary.
1713    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1714    
1715    checkpoint51p_post
1716    o create initial cd_code package
1717      - WARNING: the initialization of fields within packages
1718        is broken because INI_FIELDS (where READ_CHECKPOINT is
1719        called) is called *before* PACKAGES_INIT_VARIABLES.
1720        This seems to be backwards since
1721        1) its important to initially zero the entire field including
1722           the "halo" region
1723        2) zeroing needs to be done *before* reading pickup info
1724           and the pickup call might or might not happen in any
1725           particular run
1726      - this needs an overhaul for R2
1727    o cleanup verification/*/code/GMREDI_OPTIONS.h
1728    o cleanup testreport
1729    
1730    checkpoint51o_post
1731    o bringing AD-related verif's up to date with genmake2
1732      - carbon/
1733      - global_ocean.90x40x15/
1734      - hs.94.1x64x5/
1735      - (front_relax/ )
1736    o (more) consistent directory structure for AD-related verif.'s
1737    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1738    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1739    o bug fix in find_alpha.F for MDJWF:
1740      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1741        change rho -> rho-rhoConst
1742      - replace call find_rho to find_rhonum
1743    o initialisation of rFlx extended to full array (required by TAF)
1744      and shifted to thermodynamics
1745    o removed PTRACERS.h in ptracers routine
1746    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1747    o Correcting initialisations for fVerU, fVerV.
1748    o helping TAF to recognize dependency on kUp for
1749      fVerU, fVerV
1750    o Replacing delZ by delR in pkg/ctrl/
1751    checkpoint51o_pre
1752    
1753    o undid all of cp51 pending some cleanups and discussion
1754    o added the [#include "AD_CONFIG.h"] statement to all files that need
1755       it for adjoint/tl #defines
1756     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1757     o removed tools/genmake since it no longer works
1758    
1759    checkpoint51n_post
1760    o modifications to make FREEZE flux visible to pkg/kpp
1761      - moved surfaceTendencyTice from pkg/seaice to main code
1762      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1763      - subroutine FREEZE now limits only surface temperature
1764        (this means new output.txt for global_ocean.90x40x15,
1765         global_ocean.cs32x15, and global_with_exf)
1766    o added surface flux output variables to TIMEAVE_STATVARS
1767    
1768    checkpoint51n_pre
1769    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1770    o added [#include "AD_CONFIG.h"] to all files that use the following
1771      defines:
1772      - ALLOW_ADJOINT_RUN
1773      - ALLOW_TANGENTLINEAR_RUN
1774      - ALLOW_ECCO_OPTIMIZATION
1775    
1776    checkpoint51m_post
1777    o incorporating changes to get TAMC/TAF working in genmake2
1778      - added new TAMC/TAF targets to the Makefile
1779      - various cleanups related to package handling
1780      - these changes should have no impact on the forward model
1781    
1782    checkpoint51l_post
1783    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1784     - faster algorithm for cal_addtime.F
1785     - higher precision arithmetic, where needed
1786     - pkg/exf *startdate variables changed from calendar date to
1787       model integration time
1788    
1789    checkpoint51l_pre
1790    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1791    o enable to apply restoring on S & T only in a latitude band.
1792    o update output (external_forcing_surf modif. change truncation errors)
1793       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1794    
1795    checkpoint51k_post
1796    o change default to: useNHMTerms=.FALSE.
1797     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1798       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1799     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1800        exp1, ideal_2D_oce
1801     - change data file of oceanic exp (leave the results unchanged for now)
1802       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1803    o set gravitySign automatically according to the vertical coordinate used
1804      (and change sign: back to "logical" value: +1 when R increases downward)
1805    o added an include barrier to the default CPP_OPTIONS.h and
1806      removed the #include "PACKAGES_CONFIG.h" from it
1807    o fix a bug in mom_fluxform (from chk51j_post)
1808    
1809    checkpoint51j_post
1810    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1811    o adjusted some flow directives (dynamics, thermodynamics)
1812    o added cubed-sphere case to test cost function
1813    o heckpoint_lev?_directives.h now include
1814      pkg-specific directives, whenever those are enabled.
1815    o Moving pkg-specific flow directives to corresponding pkg
1816      Moving pkg-specific differentiation list to corresponding pkg
1817      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1818      ---> conventions are
1819           - pkg_ad.flow
1820           - pkg_ad_diff.list
1821           - pkg_ad_check_lev?_dir.h
1822    
1823    checkpoint51i_post
1824    o merge of the branch-genmake2
1825      - knowingly breaks the older genmake
1826      - automatic generation of all ALLOW_${PKG_NAME} defines
1827      - new testreport supersedes older testscript
1828    o large number of package inclusion and header cleanups
1829    checkpoint51i_pre
1830    
1831    o new output for adjoin of global ocean vector invariant
1832    o fix for checkpoint of thermodynamic seaice and bulk_force
1833    o Steph gchem various cleanups
1834    
1835    checkpoint 51h_pre
1836    o fixed some single quotes
1837    o modify gchem pkg to be more versatile
1838    o modifications to clean up dic pkg
1839    o add pkg/cfc
1840    
1841    checkpoint51g_post
1842    o provide links for ARPACK and ADM*TLM
1843    o start removing verification/vero/
1844    o update AD-related stuff
1845      (in particular some IF-statements in model/src/ routines)
1846    o adding to verification/global_ocean.90x40x15/ adjoint of
1847      vector invariant setup
1848    
1849    checkpoint51f_post
1850    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1851    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1852      of tracer Green's fucntions for ocean inversion project.
1853    
1854    checkpoint51f_pre
1855    o Added on-the-fly spatial interpolation capability
1856        "USE_EXF_INTERPOLATION" to pkg/exf.
1857      - This is a temporary Cartesian-grid hack until
1858        the super-duper ESMF coupler becomes available.
1859      - See verification/global_with_exf/README for usage example.
1860      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1861        flags and modified pkg/seaice accordingly.
1862    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1863        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1864        non-local transport term.
1865    
1866    checkpoint51e_post
1867    o pkg/mom_vecinv:
1868      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1869      - add time-ave diagnostic of vorticity advection.
1870    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1871    o atmospheric geopotential: - include water vapor effect;
1872                                - use p^kappa in p* scaling.
1873    o land pkg: read initial state from files.
1874    o AIM : add stratospheric drag in the upper level
1875    
1876    checkpoint51d_post
1877    o change function ILNBLNK (=> last non-blank char.) to return zero
1878      (instead of the string length) when the string. char is empty
1879    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1880    o modif's to restore TAMC compatibility
1881      - avoid "_d" constructs in PARAMETER declarations
1882      - avoid interrupting lines by comment lines
1883    o Use cluster local disks for purely local I/O
1884      vs. globally visible disks needed for ctrl stuff
1885      (merged from ecco-branch)
1886      - new active_file_loc... and mdsio_..._loc routines
1887      - affected packages: autodiff, ctrl, grdchk, mdsio
1888    
1889    checkpoint51c_post
1890    o introducing integer flag debugLevel
1891      - debLevZero: suppress all output
1892      - debLevA: standard
1893      - debLevB: equivalent to current debugMode=.TRUE.
1894    o introducing pathname variable mdsioLocalDir for mdsio
1895      that can be specified at runtime
1896      (relevant for cluster I/O to local disk)
1897    `
1898    >>>checkpoint51b_post
1899    adjoint of ptracers
1900    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1901    o extended state in checkpoint_lev?, etc.
1902    o alternative ctrl/cost with tr1 or ptracer
1903    o new comlev1_bibj_ptracers
1904    o new ptracers.flow
1905    o made ptracers_forcing same as external_forcing_s
1906    o added verification for adjoint with ptracers
1907      - adm. grdchk fail so far
1908      - tlm. grdchk OK
1909      - checked tapelev/comlev recomputations: OK
1910    <<<checkpoint51b_pre
1911    
1912    checkpoint51a_post
1913    o added code for biogeochemistry package
1914      - new pkgs: dic, gchem
1915      - new subroutine in ptracers
1916    o modify code for biogeo packages
1917      - in model/src and pkg/ptracers
1918    
1919    checkpoint51
1920    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1921      - autodiff, ctrl, exf, grdchk, seaice
1922      kept separate packages
1923      - cost, ecco, obcs
1924    o updating verification/internal_wave, verification/lab_sea
1925      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1926    
1927    checkpoint50i_post
1928    o Preparing next differentiable checkpoint and sync
1929      of MAIN vs. ecco-branch
1930      - 1st step: this one is differentiable
1931      - 2nd step: next(! not this) checkpoint will have updated packages
1932                  from ecco-branch)
1933    
1934    checkpoint50h_post
1935    o new package "land": provide surface BC for AIM.
1936    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1937    o AIM: use true log-P extrapolation for near surface temp (= as in
1938        F.Molteni paper) ; update aim.5l_cs output.
1939    o New variable in PARM03 for more flexible pickups
1940    o somewhat cleaned package initialisation sequence for
1941      ctrl/ cost/ ecco/ in packages_... routines
1942    
1943    checkpoint50g_post
1944    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1945      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1946      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1947        made the default because of faster convergence than ADI
1948    
1949    checkpoint50f_post
1950    o exf totally restructured
1951      - replaced all exf_set_ routines by one generic exf_set_gen.F
1952        and made sure it's still differentiable
1953      - split exf_getffields.F into new exf_bulkformulae.F
1954      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1955      - updated adjoint/makefile and relevant verif. accordingly
1956    
1957    checkpoint50f_pre
1958     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1959          + change Evap over land. (update aim.5l_cs output)
1960     o added missing .cvsignores and made uniform across expts
1961     o changed configuration of tidal_basin_2d expt
1962     o added pkg/debug functions for tracing code in fatal crashes
1963     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1964     o new fn in pkg/monitor to stop model if solution grows too big
1965     o removed lots of single quotes from comments
1966    
1967    checkpoint50e_post
1968    o make KPP work with PTRACERS
1969     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1970       nearly a copy of kpp_transport_s
1971     - there is no analogue to SurfaceTendencyS, so I have to use
1972       gPtr(of the surface layer) instead
1973    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1974    checkpoint50e_pre
1975    
1976    checkpoint50d_post
1977    o change kpp output from multiple-record state files to single-record state
1978      files analogous to write_state.F
1979    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1980      analogous to the cg2d-related output.
1981    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1982      so that writing to internal file fn (with length 512) fails.
1983    checkpoint50d_pre
1984    
1985    checkpoint50c_post
1986    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1987    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1988    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1989    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1990    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1991    
1992    checkpoint50c_pre
1993    Merging from release1_p13:
1994    o bug fix for pkg/seaice dynamic solver
1995    o Added SEAICE_initialHEFF to pkg/seaice
1996    
1997    checkpoint50b_post
1998    o store u*,v* in gU,V instead of in guNm1,gvNm1
1999    o in order to put the momForcing out of the Adams-Bashforth:
2000      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2001      to timestep.F
2002    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2003    o re-generate output for highly sensitive test-exp:
2004       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2005    
2006    checkpoint50b_pre
2007    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2008    o corrected CPP option mismatch in exf_Bulk... functions for case
2009      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2010    
2011    checkpoint50a_post
2012    o Bug fix for merging between c50 and KPP.
2013      ikey was passed from thermodynamics to kpp_calc via
2014      common block rather than being recomputed in kpp_calc,
2015      in contradiction with new key itdkey.
2016      New key ikppkey created, and tamc.h headers updated.
2017    
2018    checkpoint50
2019    - 2nd step of merge with ecco-branch:
2020      merge changes in ecco-branch back into main trunk
2021    - bug fix in find_alpha
2022    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2023    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2024    - merged some sliced AD support routines
2025    
2026    checkpoint49
2027    merged from ecco-branch:
2028    o exf:
2029      - Enable initialisation of forcing fields to constant
2030        (runtime) values.
2031      - in exf_getffields.F
2032        Reduce i-/j-loop to interior domain, discarding overlaps.
2033        That also fixes wrong TAF-key computations for key_1, key_2
2034        with bulf formulae.
2035      - exf_init.F modify #ifdef for exf_init_evap
2036      - exf_getffieldrec.F, ctrl_getrec.F
2037        The following INT-usages are not safe:
2038          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2039          fldcount = int(fldsecs/fldperiod) + 1
2040        and were modified.
2041    o autodiff: checkpoint_lev...
2042      - updated storing for bulk formulae (some arrays were missing)
2043      - added state for seaice package
2044      - synchronized with main branch
2045    o DIVA:
2046      Modif.s in
2047      - the_main_loop.F
2048      - the_model_main.F
2049      and added cost_final_restore.F cost_final_store.F
2050      o With these changes, it is possible to fully separate
2051        the first forward run to compute the cost function (mdthe_main_loop)
2052        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2053        into separate model executions.
2054        This enables better tuning of DIVA to given queue sizes.
2055      o Loss of cost function value in consecutive DIVA runs is
2056        fixed by storing to 'costfinal' file.
2057      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2058        beginning/end of adjoint integration is accounted for.
2059      The current changes apply to TAF-1.4.26.
2060      TAF has one remaining bug, requiring one manual change
2061      (see MITgcm manual).
2062    o cal: synchronized between MAIN and ecco-branch
2063    
2064    checkpoint48i_post
2065    o Changes to restore differentiability of code w.r.t. previous tag
2066      (mostly adding new routines to make list and replacing
2067      pressure by totPhiHyd).
2068    o Updated and merged grdchk package
2069      - has both ADM and TLM checks
2070      - works for single- and multi-proc.
2071      - output cleaned
2072      - worked successfully for parallel DIVA
2073    o genmake:
2074      - Adding -platform=SP4
2075      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2076    o Modif. for DIVA:
2077      ctrl_unpack should not be called in intermediate DIVA interval.
2078      (similar thing would apply for active files such as
2079      tbar, sbar, psbar, which should not be reinitialised;
2080      only relevant for ecco-branch)
2081    
2082    checkpoint48h_post
2083    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2084    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2085    o Added SEAICE_initialHEFF to pkg/seaice
2086    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2087    
2088    checkpoint48g_post
2089    --- EOS:
2090    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2091      store total Potential in totPhyHyd for diagnostics & EOS.
2092    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2093    --- Pressure/geopotential gradient:
2094    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2095    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2096      ( changes results of global_ocean_pressure )
2097    o NLFS + z-coord.: add eta*Rho' contribution.
2098    o accurate phiHyd when using interface-W at the middle between 2 centers
2099     ( changes results of ideal_2D_oce )
2100    o includes r* 2nd term in potential gradient.
2101    
2102    checkpoint48f_post
2103    Merging from release1_p12:
2104    o Modifications for using pkg/exf with pkg/seaice
2105      - improved description of the various forcing configurations
2106      - added basic radiation bulk formulae to pkg/exf
2107      - units/sign fix for evap computation in exf_getffields.F
2108      - updated verification/global_with_exf/results/output.txt
2109    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2110      (SBO) core products, including oceanic mass, center-of-mass,
2111      angular, and bottom pressure (see pkg/sbo/README.sbo).
2112    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2113      to avoid negative values in shallow regions.
2114      - updated verification/natl_box/results/output.txt
2115      - updated verification/lab_sea/results/output.txt
2116    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2117    o Added useSingleCpuIO option (see PARAMS.h).
2118    o Updated useSingleCpuIO option in mdsio_writefield.F to
2119      work with multi-field files, e.g., for single-file pickup.
2120    o pkg/seaice:
2121      - bug fix in growth.F: QNET for no shortwave case
2122      - added HeffFile for specifying initial sea-ice thickness
2123      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2124    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2125      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2126    o pkg/seaice:
2127      - adjoint-friendly modifications
2128      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2129    
2130    checkpoint48e_post
2131    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2132    o dynamics: change definition of computational domain & adapt mom_fluxform
2133      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2134    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2135        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2136        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2137        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2138        inverted_barometer solid-body.cs-32x32x1
2139      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2140    
2141    checkpoint48d_post
2142    o in preparation for r*:
2143     a) use pre-computed gradient of hydrostatic potential:
2144        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2145     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2146        => affects results of glob_oce_pressure (different truncation error)  
2147      update output.txt of ideal_2D_oce & global_ocean_pressure
2148    
2149    checkpoint48d_pre
2150    o in preparation for r*:
2151      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2152      pass the 2 comp. of the grad. as arguments to momentum S/R.
2153      but for the moment, only used if it does not change the results.
2154    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2155    
2156    checkpoint48c_post
2157    Modifications in treatment of initial flux forcing controls
2158    to avoid extra storing of flux fields.
2159    
2160    checkpoint48c_pre
2161    o Added tidal_basin_2d experiment (currently 1D!)
2162    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2163    
2164    checkpoint48b_post
2165    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2166     (modification to pressure gradient not yet implemented)
2167    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2168      (for U & V) that are used for vertical advection of momentum.
2169    
2170    checkpoint48a_post
2171    o In preparation for r*, use temp. array to compute vertical transport
2172       in flux-form momentum pkg. => change results of few test-exp.
2173      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2174                        lab_sea, natl_box & plume_on_slope
2175    
2176    checkpoint48
2177    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2178    
2179    checkpoint47j_post
2180    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2181    o moved adexch from forward_step to addummy_in_stepping
2182    o added exch in ctrl_map_...
2183    o aveFreq.=0. at end of cost_final to avoid overwrite in
2184      reverse checkpointing loop
2185    o Yet more changes in gmredi:
2186      * adgmredi_calc_tensor
2187        avoiding all recomputation of gmredi_slope_limit
2188      * adgmredi_x/y/rtransport
2189        added flag for excessive storing to avoid recomp. of
2190        u/v/rtans, dTdx/y/z
2191        -> this is not really necessary and very memory-consuming
2192      * adgmredi_slope_psi:
2193        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2194      * gmredi_slope_limit
2195        re-activated full calculation of taperfct for case 'ac02'
2196    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2197    
2198    checkpoint47i_post
2199    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2200    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2201      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2202    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2203    o gmredi: fix few bugs.
2204    
2205    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2206    This will be a good checkpoint to plug into the ecco-branch.
2207    o few modif.'s to get latest version adjointed
2208      (mainly kick out code in ini_linear_phisurf)
2209    o modif's to run adjoint with exactConserv
2210    o case GM_BOLUS_ADVEC should be cleaned
2211      S/R gmredi_slope_psi should be cleaned
2212    o verification/carbon now has exactConserv=.TRUE.
2213    
2214    checkpoint47g_post
2215    o time-average AIM output: becomes independent from statvars time-average
2216      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2217    o After TAF bug fix:
2218      Tested adjoint of gmredi package.
2219      Tests were done with checkpoint47 rather than with latest
2220      checkpoint47f_post since the latter is broken for the adjoint
2221      verification/carbon/ contains both ADM and TLM gradient checks.
2222    Here they are, before they get changed/lost/stolen.
2223    Mostly modif.'s to fix numerical sensitivities.
2224    Gradient checks OK for
2225    - GM_taper_scheme:
2226      * clipping
2227      * ac02
2228      * linear
2229      * glw91
2230      * dm95
2231      * ldd97
2232    - GMREDI_OPTIONS:
2233      * GM_VISBECK_VARIABLE_K
2234      * GM_NON_UNITY_DIAGONAL
2235      * GM_EXTRA_DIAGONAL
2236      * GM_BOLUS_ADVEC
2237    in conjunction with data.gmredi parameters to be checked in
2238    in a few minutes under verification/carbon/code/
2239    
2240    checkpoint47f_post
2241    Merging from release1_p10:
2242    o modifications for using pkg/exf with pkg/seaice
2243      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2244        and SEAICE_EXTERNAL_FLUXES
2245      - pkg/exf CPP options EXF_READ_EVAP and
2246        EXF_NO_BULK_COMPUTATIONS
2247      - usage examples are Experiments 8 and 9 in
2248        verification/lab_sea/README
2249      - verification/lab_sea default experiment now uses
2250        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2251    
2252    checkpoint47e_post
2253    o created a tag prior to creating a branch
2254    
2255    checkpoint47d_post
2256    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2257      at the bottom boundary had an erroneous half slip boundary condition
2258    o added bottom drag and no slip boundary condition capabilities to
2259      oceanic pressure coordinates code
2260    o added new verification experiment global_ocean_pressure, this experiment is
2261      also described in the tutorial section of the manual
2262    checkpoint47d_pre
2263    
2264    checkpoint47c_post
2265    o Added a verification experiment for a global cubed-sphere ocean run
2266      -  verification/global_ocean.cubed32x32x30
2267      -  uses pkg/therm_seaice and pkg/bulk_forcing
2268    
2269    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2270    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2271      when using P-coordinate; only implemented for atmospheric config.
2272    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2273      NOTES: requires option NONLIN_FRSURF to be "#define".
2274    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2275    
2276    checkpoint47b_post
2277    Merging from release1_p9:
2278    o pkg/seaice
2279      - removed GOTO's and added taf directives
2280      - double precision constants to reduce the g77 (Linux)
2281        to F77 (SGI) differences reported in release1_p8
2282    o tools/genmake
2283      - added SGI options
2284    o verification/testscript
2285      - updated to that of checkpoint47a_post
2286    o verification/global_ocean.90x40x15/input/eedata
2287      - modified for SGI f77 compatibility
2288    o verification/lab_sea
2289      - added description of sea-ice model
2290      - added missing matlab routines
2291      - added test of thermodynamics parallelization
2292    
2293    checkpoint47a_post
2294    o new pkg: aim_v23
2295     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2296       for now, keep the same surface forcing as before.
2297     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2298     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2299     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2300    o add diagnostic of surface correction term in monitor output
2301    
2302    o bulk_force and therm_seaice
2303    - Two packages:  bulk_force (Bulk forcing)
2304      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2305    - Earlier integration from Stephaine Dutkiewicz
2306      and Patrick Heimbach.
2307    - Two ifdef statements for compile time,
2308       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2309    
2310    checkpoint47
2311    differentiable version of checkpoint46n_post
2312    o bug fix in quasihydrostaticterms
2313    o * "clean" adjoint code (in terms of extensive recomputations)
2314        can now be obtained for all GMREDI options (i.e. for
2315        - GM_VISBECK_VARIABLE_K
2316        - GM_NON_UNITY_DIAGONAL
2317        - GM_EXTRA_DIAGONAL
2318        - GM_BOLUS_ADVEC )
2319      * However, wrong gradient check problem remains unsolved.
2320      * New CPP options have been introduced for different
2321        tapering schemes
2322    o external_fields_load now part of differentiation list
2323    o pressure needs multiple storing;
2324      would be nice to have store_pressure at beginning or
2325      end of forward_step, e.g. by having phiHyd global (5-dim.)
2326      (NB: pressure is needed for certain cases in find_rho,
2327      which is also invoked through convective_adjustment).
2328    o recomputations in find_rho for cases
2329     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2330    o #define ATMOSPHERIC_LOADING should be differentiable
2331    o ini_forcing shifted to begining of initialise_varia
2332    o Incorporating QNVS line search routines into MITgcm
2333      (this is separate code, and therefore not under pkg)
2334      lsopt/, optim/
2335    o Updated verification/carbon/
2336      - #define GM_VISBECK_VARIABLE_K
2337      - GM_taper_scheme    = 'ldd97'    
2338    
2339    checkpoint46n_post
2340    Merging from release1_p8:
2341    o verification/natl_box:
2342      updating new external_fields_load routine
2343    o New package: pkg/seaice
2344      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2345      The sea-ice code is based on Hibler (1979-1980).
2346      Two sea-ice dynamic solvers, ADI and LSR, are included.
2347      In addition to computing prognostic sea-ice variables and diagnosing
2348      the forcing/external data fields that drive the ocean model,
2349      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2350      The implied surface heat flux is then stored in variable
2351      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2352      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2353      non-local transport term.  Because this call precedes model
2354      thermodynamics, temperature under sea-ice may not be "exactly" at
2355      the freezing point by the time theta is dumped or time-averaged.
2356      N.B.: fairly large differences in accuracy occur across
2357            different platforms/compilers; comparison between
2358            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2359            generated output gives:
2360       T           S           U           V
2361      C D M    c        m  s        m  s        m  s        m  s
2362      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2363      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2364      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2365    
2366      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2367    o GAD:
2368      - generated new common blocks to account for call of
2369        same gad routines with differing traceridentities
2370        (needed to modify tracerIdentity indices in GAD.h)
2371      - generated separate common blocks for case useCubedSphereExchange
2372        (Department of Futurology)
2373      - parameter lists to gmredi_?transport: added tracerIdentity
2374      - added new key indices to tamc.h
2375    o external_fields_load:
2376      - added this routine to TAF list
2377      - needed to make some common blocks global and additional storing
2378        along the same lines as exf package (checkpoint_lev?_directives.h)
2379    o exf:
2380      updated external forcing package
2381      - bug fixes carried over from ecco-branch
2382        (missing OBCS_OPTIONS.h in two routines)
2383      - enable easy to use "no forcing".
2384      - added exf I/O for atmospheric loading
2385      - added exf I/O for runoff data
2386      - transfered scaling between exf <-> MITgcm to exf namelist
2387    o Adding new verification experiment global_with_exf.
2388      This verification experiment is almost identical to the
2389      global_ocean.90x40x15 experiment, except that it uses
2390      the exf (and cal) package instead of the
2391      external_fields_load routine (cf README file).
2392    
2393    checkpoint46m_post
2394    o modified testscript to return -- when there are no lines of "%MON" output
2395    o added new flag "quasiHydrostatic" for QH mode
2396      and new routine quasihydrostaticterms()
2397    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2398      New routine: mom_u_coriolis_nh()
2399    o fixed sign of non-hydrostatic metric terms in u and v equations.
2400      Depend on correct sign of gravitySign.
2401    o added work.pc* to .cvsignore in aim directories using ifc
2402    o introduced flag for controllin non-hydrostatic metric terms
2403    o removed gravitySign from PARM04
2404    o switched to g77/ifc from pgf77 in aim experiments
2405    
2406    checkpoint46l_post
2407    o made convective adjustment work with pressure coordinates:
2408     - changed the direction of k-loop in convective_adjustment.F for the
2409       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2410     - adjusted the reference pressure k-index in convective_adjustment.F
2411     - adjusted the convection condition in convect.F (in analogy to
2412       calc_ivdc.F)
2413     - convective_adjustment no longer computes anything on the halos
2414     - removed the warnings about negative salinity from find_rho.F and
2415       find_alpha.F; instead the new routine look_for_neg_salinity, called
2416       at the beginning of find_rho, find_alpha, and find_beta, does a
2417       check of the entire slice, if CPP-option
2418       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2419    checkpoint46l_pre
2420    
2421    checkpoint46k_post
2422    o fixed the verification/global_ocean.90x40x15 experiment:
2423     - new bathymetry (the world according to A., JMC, and M.)
2424     - new initial fields and forcing fields (*.bin files)
2425     - new POLY3.COEFFS (for the next release one should switch to a full
2426       equation of state: JMD95P or MDJWF)
2427     - fixed several errors and redundancies in the data file
2428     - experiment uses looped cells
2429     - added matlab directory with diagnostic scripts for plotting of output
2430    
2431    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2432     - read AIM physics parameters from a file (data.aimphys)
2433     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2434    
2435    checkpoint46j_post
2436    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2437    o move wVel computation at the end of the time step, in S/R integr_continuity
2438    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2439    o update timeave pkg for wVel diagnostic.
2440    checkpoint46j_pre
2441    
2442    checkpoint46i_post
2443    o Clean up AIM package (and keep the results unchanged):
2444      include CPP_OPTION and use IMPLICT NONE in all routines ;
2445      declare all the variables _RL ; use _d 0 for all numerical constants.
2446      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2447    
2448    checkpoint46h_post
2449    o cleaned up the use of rhoNil and rhoConst.
2450      - rhoNil should only appear in the LINEAR equation of state, everywhere
2451        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2452        and the dynamical equations are all divided by rhoConst
2453    o introduced new parameter rhoConstFresh, a reference density of fresh
2454      water, to remove the fresh water flux's dependence on rhoNil. The default
2455      value is 999.8 kg/m^3
2456    o cleanup up external_forcing.F and external_forcing_surf.F
2457      - can now be used by both OCEANIC and OCEANICP
2458    checkpoint46h_pre
2459    
2460     Added code to convert surface volume flux (fresh water) into
2461     a mass flux when using P coordinates in the ocean (OCEANICP).
2462     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2463    
2464    checkpoint46g_post
2465    o Include a new diagnostic variable phiHydLow for the ocean model
2466      - in z-coordinates, it is the bottom pressure anomaly
2467      - in p-coordinates, it is the sea surface elevation
2468      - in both cases, these variable have global drift, reflecting the mass
2469        drift in z-coordinates and the volume drift in p-coordinates
2470      - included time averaging for phiHydLow, be aware of the drift!
2471    o depth-dependent computation of Bo_surf for pressure coordinates
2472      in the ocean (buoyancyRelation='OCEANICP')
2473      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2474        Theta, Salinity, and Pressure in the parameter list. This routine is
2475        presently contained in find_rho.F. This routine does not give the
2476        correct density for 'POLY3', which would be a z-dependent reference
2477        density.
2478    o cleaned up find_rho
2479      - removed obsolete 'eqn' from the parameter list.
2480    o added two new verification experiments: gop and goz
2481      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2482    checkpoint46g_pre
2483    
2484    checkpoint46f_post
2485    o Enable tangent linear (forward mode) gradient checks:
2486      - extended active file handling to g_... files
2487      - added TANGENT_SIMULATION to theSimulationMode
2488      - extended grdchk package accordingly
2489    o added tangent linear setup in verification/carbon/code_ftl
2490    o added adjoint setup in verification/front_relax/code_ad
2491    
2492    checkpoint46e_post
2493    o Added new equation of state -> MDJWF
2494      - EOS of McDougall et al., 2002, JAOT, submitted
2495      - caveat: the equation of state is only valid for a smaller (more
2496        realistic?) range of values than JMD95P/Z and UNESCO
2497      - added masks to the calculation of pressure in store_pressure
2498      - added more check values for density in check_eos (ini_eos.F), some of
2499        the old check values are out of the range of the MDJWF-eos, so don't
2500        expect perfect matches for those
2501    checkpoint46e_pre
2502    
2503    checkpoint46d_post
2504    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2505      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2506      case of pressure coordinates. eosType='JMD95Z' in
2507      combination with buoyancyRelation='OCEANICP' now causes an error.
2508    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2509      in find_alpha/beta.
2510    checkpoint46d_pre
2511    
2512    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2513      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2514    
2515    checkpoint46c_post
2516    o Changes necessary for ocean in p-coordinates
2517     -  Added new buoyancy relation = 'OCEANICP'
2518     -  Added new parameters = gravitySign (this used to be contained inside
2519        the factor dRdZ which I added when we first switched to R coordinates).
2520     X GM/Redi is not compatible (yet)
2521     X bottom drag and no-slip need to be debugged.
2522    checkpoint46c_pre
2523    
2524    checkpoint46b_post
2525    o Added new equation of state -> JMD95Z and JMD95P
2526      - EOS of Jackett and McDougall, 1995, JAOT
2527      - moved all EOS parameters into EOS.h
2528      - new routines ini_eos.F, store_pressure.F
2529    o Added UNESCO EOS, but not recommended because it requires
2530      in-situ temperature (see JMD95)
2531    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2532      unesco.f to be used with POLY3
2533    checkpoint46b_pre
2534    
2535    checkpoint46a_post
2536    o Added (atmospheric) pressure loading
2537      - new field in FFIELDS.h, etc...
2538      - new cpp flag ATMOSPHERIC_LOADING
2539    o Changed hFacC to _hFacC in calc_phi_hyd.F
2540    o Added SHORTWAVE_HEATING to some files for consistency
2541    checkpoint46a_pre
2542    
2543    checkpoint46
2544    further merges from release1_p5
2545    o new ctrl package
2546      - adopted from ECCO environment to enable optimization
2547      - added Eliassen Palm fluxes to controls
2548    o added Eliassen Palm flux controls to gradient check package
2549    o cost package
2550      - Compatible with new ctrl package
2551      - added Eliassen Palm cost hooks
2552      - modif's of existing cost functions
2553    o Adjoint-related bug fixes in kpp:
2554      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2555      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2556    o autodiff package
2557      - flow directives:
2558        + new for S/R do_the_model_io
2559        + enhanced for S/R checkpoint
2560        + new gmredi.flow
2561      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2562        disable adcommon.h/g_common.h by default.
2563      - fixed problem for adjoint of global_max
2564    o modified verification/carbon/
2565    o New setup for adjoint of global_ocean
2566    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2567    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2568    o incorporated hooks for sponge layer code (external_forcing.F)
2569    
2570    checkpoint45d_post
2571    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2572    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2573      (affects plume_on_slope "cg2d" output)
2574    o add new parameter deltaTfreesurf for free-surface time stepping
2575    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2576    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2577    o change phiMin in exp1 (to agree with documentation)
2578    o add new flags:
2579     - T,S forcing inside/outside Adams-Bashforth
2580     - turn off temp,salt advection and/or forcing
2581     - for each tracer, define internal flag for multiDimAdvection & A-B
2582    o monitor: change definition of KE to check conservation of Energy
2583    
2584    checkpoint45c_post
2585    o Removed f90 comments ("!")
2586    o Modified initialisations to enable exf package for MITgcm
2587      (without invoking ECCO_PACKAGE).
2588    o modifications to gradient check package (Martin Losch)
2589      - enable centered differences
2590      - modified format of standard output
2591    
2592    checkpoint45b_post
2593    o cleaned exchange calls in cg2d
2594    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2595    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2596      to configure barotropic setup (Martin Losch)
2597    o moved some initialisations within bi,bj loop in dynamics
2598      (TAF flow dependency)
2599    o in initialise_varia, moved call packages_init_variables
2600      before convective_adjustment_init
2601      (corresponding adjustment of TAF tape initialisation).
2602    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2603    
2604    checkpoint45a_post
2605    o compute Rho over the whole domain (extend iMin,jMin indices)
2606    o specific exchange for X-slice domain (case Ny=1)
2607    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2608    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2609    
2610    checkpoint44h_post = checkpoint45
2611    o Fix to restore differentiability:
2612      place at which packages_init_variables is called in
2613      initialise_varia is crucial for reverse control flow.
2614    o modifications in GMRedi to enable stable adjoint
2615      (corresponding modif's in thermodynamics, dynamics)
2616    o added missing hook for sponge layer code in external_forcing
2617    o modified test cost functions
2618    o storing in gad_advection (plus removal of write(0,*)!
2619    o missing headers TR1.h added in convective_adjustment routines
2620    o errorMessageUnit set non-equal zero in eeboot
2621      (conflict on some platforms, e.g. IBM SP3)
2622    o modified carbon verif.
2623    
2624    checkpoint44h_pre
2625    o vertical grid option: allow to put the Interface at the middle between
2626      2 cell-centers ; replace delZ in pkg/kpp by drF.
2627    o GM Advective form: Tracers are advected using the residual transport (=
2628      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2629    
2630    checkpoint44g_post
2631    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2632      results) ; ifdef missing in thermodynamics.F
2633    
2634    checkpoint44f_pre,checkpoint44f_post
2635    o added PTRACERS package
2636      This allows an arbitrary number of passive tracers to be integrated
2637      forward simultaneously with the dynamicaly model.
2638      + Implemented so far:
2639        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2640        - I/O and checkpointing
2641        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2642      + Not implemented so far:
2643        - KPP
2644        - OBCS
2645      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2646        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2647        line in data.pkg.
2648      + This package is disabled by default since it increases storage.
2649    
2650    
2651    o testscript: added -cleanup option
2652    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2653                 b) enable to filter 2D fields.
2654    
2655    checkpoint44e_pre,post
2656    o re-wrote convective adjustment to use pre-calculated weights
2657      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2658      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2659      Original calls to convect() still in place.
2660    
2661    chkpt44d_pre,post
2662    o added missing EXCLUDE_MONITOR flags
2663    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2664      (incompatible typ in MIN/MAX expressions caused problems
2665      on IBM SP3)
2666    o in genmake added variable MAKEDEPEND
2667      plus resetting for case SunOS
2668    o added timer_stats.c routine for IBM SP3
2669    o removed variables in dynamics
2670    !!! I forgot to create tag chkpt44d_pre !!!
2671    !!! But chkpt44d_pre = chkpt44c_post    !!!
2672    
2673    o real fresh water flux implemented with non-linear free-surface.
2674    
2675    chkpt44c_pre,post
2676    o few fix (mask in shap_s2, EmPmR in external_field_load,
2677      USE_NATURAL_BCS in solve_for_P);
2678    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2679    
2680    checkpoint44b_pre/_post
2681    o merge of relevant stuff from the ecco-branch:
2682      - genmake: removed $S64 overwrite for case SunOS
2683      - pkg/exf: update and corrections for field swapping and obcs
2684      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2685                  harmonized between ECCO and MITgcm
2686      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2687                      updated checkpointing_lev... lists for obcs
2688      - model/src: minor changes in forward_step, plot_field
2689                   added directive for divided adjoint in the_main_loop
2690      - pkg/mdsio: added mdsio_gl_slice
2691    
2692    o check parameters & config (chkpt44a_pre,post)
2693    o OBC and NonLin_FrSurf.
2694    
2695    checkpoint44
2696    o fix bug in mom_vi_del2uv
2697    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2698    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2699    o update AIM experiments (NCEP input files)
2700    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2701    o added some stuff for AD
2702    
2703    checkpoint43
2704    o added two new advection tests
2705    o added global 4x4 degree ocean test
2706    o added test of H&S94 with free surface on cube
2707    o some final mods for gradient check, adjoint,...
2708    
2709    checkpoint42
2710      Fixed AD-related problems:
2711    o Store directives up-to-date with re-arranged Adams-Bashforth
2712      (mainly thermodynamics.F)
2713    o New store directives for multi-dim. advection schemes
2714      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2715      * new common block and key passkey
2716      (mainly gad_advection.F)
2717    o Modified store directives for split of dynamics/thermodynamics
2718      for the case ALLOW_KPP
2719    o Cleaned argument list for timestep_tracer.F
2720    
2721    checkpoint41
2722    o re-formatted/added comments in prologues of key subroutines
2723      to work with protex
2724    
2725    checkpoint40
2726    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2727    o added FLT (floats) package from Arne along with demo. experiment
2728    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2729      implementation of forward-in-time forcing terms
2730    o more mods for non-linear free-surface including new variable
2731    o modified multi-dim method to work on cube
2732    o bug fix in KPP (from DM)
2733    
2734    checkpoint40pre9
2735    o added DST advection schemes
2736    o fix MPI bug on SGI's
2737    o modifications for non-linear free-surface
2738    o fixed conditionals for fixed flow/passive tracer only mode
2739    o added tension/strain form of stress tensor
2740    o changes to commenting of arguments for TAF/TAMC
2741    o added/updated many matlab scripts
2742    o added multi-dimensional advection method for tracers
2743      
2744    checkpoint40pre8
2745    o new package rw/
2746      Added method for dumping intermediate local arrays:
2747      mdsio_writetile - same as mdsio_writefield except works from inside
2748                        bi,bj loop
2749      mdsio_writelocal - same as mdsio_writetile except works for local
2750                         arrays
2751      write_local_r? - higher-level wrapper for mdsio_writelocal
2752      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2753      Example given at end of mom_vecinv.F that dumps some local arrays.
2754    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2755      control flux-form versus vector invariant code.
2756      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2757      or genmake -DISABLE ...
2758    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2759      (additional storing is now needed for case vecinv;
2760      currently nothing implemented to switch this storing off
2761      in case fluxform is used since no CPP flag available).
2762    
2763    checkpoint40pre7
2764    o bug fix in dynamics.F
2765      calc_viscosity called before k=1,Nr loop.
2766    o added some #ifdef's ALLOW_PASSIVE_TRACER
2767    o cleaned initialisations in ctrl_map_ini
2768      related to TAF
2769    
2770    checkpoint40pre6
2771    o split dynamics into thermodynamics & dynamics
2772    o corresponding split of calc_diffusivity into
2773      calc_diffusivity, calc_viscosity
2774      (kpp_calc_diff, kpp_calc_visc).
2775    o Added diffkr, kapgm to control variables
2776    o bug fix in gmredi_slope_limit for ldd97
2777    
2778    checkpoint40pre5
2779    o proper initialization of Adams-Bashforth time stepping
2780      + uses forward step for very first step of model (iter=0)
2781    o re-generated *all* output since almost all output is modified by this
2782      change (sorry but we've been putting this one off for about 2 years)
2783      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2784        *not* regenerated since they are already out of date and I don't
2785        want to create the impression that they are suddenly working.
2786    o removed KAP stuff for DEC's
2787    o modified/added many .cvsignore files in */code and */input
2788    o added new expt "solid-body.cs-32x32x1"
2789      + this uses an alternative form of ini_curvilinear_grid.F which
2790        is not necessarily any better than the current one...
2791    
2792    checkpoint40pre4
2793    o added re-initialisations of utrans,vtrans,rtrans in
2794      calc_common_factors which are crucial for TAF.
2795    o extended iMin,jMin range for calc_common_factors,
2796      calc_diffusivity
2797    o added option ALLOW_PASSIVE_TRACER
2798    o a few minor updates and fixes
2799    
2800    checkpoint40pre3
2801    o created calc_gtr1.F for gad package
2802    o split the_main_loop and re-introduced forward_step
2803    o some recomputations of nIter0 for TAMC
2804    
2805    checkpoint40pre2
2806    o Updated to latest branch of AJA, JMC
2807    o Added gradient check package
2808    o Added routines for passive tracer handling
2809    o Added carbon sequestration sensitivity experiment
2810    
2811    checkpoint39
2812     o Modifications and fixes to support TAMC
2813       (mainly missing or wrong directives)
2814     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2815       in addummy_in_stepping
2816     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2817     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2818     o Included following packages:
2819       cal: calendar
2820       exf: external forcing
2821       ecco: essential routines to control use of cal, exf
2822             (NB: this is not the full ECCO environment)
2823     o disabled some packages by default in genmake
2824    
2825    checkpoint38
2826     o see notes_c37_adj.txt
2827     o corrected wrong layer index in external_forcing_t
2828     o replaced the_main_loop/forward_step by the_main_loop
2829     o removed forceoutput from write_state
2830       (replaced criteria for initial/final state)
2831     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2832    
2833    checkpoint37
2834     o mdsio.F routine split and packaged in pkg/mdsio
2835       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2836        used unless genmake -disable=mdsio)
2837     o allow a more precise surface-geopotential gradient for the atmosphere
2838       taking into account the change in space of Alpha (=1/rho) at the surface.
2839     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2840       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2841     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2842       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2843       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2844     o Time-Average diagnostics defined as a pseudo package "timeave".
2845     o pickup files : old pickup (before c35) did not work with new code (c35
2846       and after) unless activating 2 commented lines in initialise-varia.
2847     o Non-Hydrostatic pickup file Pb fixed.
2848     o bug with Rigid-lid version (since c35) fixed.  
2849    
2850    checkpoint36
2851     o implement Crank-Nickelson barotropic time-stepping
2852     o recover Time-Average diagnostics
2853     o fix Pb in checkpoint (PR#19)
2854     o AIM become a standard package ; clean unused CPP_kees
2855    
2856    checkpoint35
2857     o subtantial rewrite of dynamics.f
2858     o allows staggered time-stepping
2859     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2860     o added bottom drag (linear + quadratic)
2861    
2862    checkpoint34
2863     o Modified exchange routines for correct reverse simulation.
2864     o Added verification output to comply with bug fix in impldiff.F
2865       as of c33 (exp2, natl_box).
2866     o Corrected store directives in dynamics.F
2867     o Corrected array boundaries in impldiff.F
2868     o Corrected array dimensions in gmredi.
2869       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2870     o Added routine GLOBAL_SUM_INT to global_sum.F
2871     o Added mdsio_gl.F for ECCO purposes.
2872    
2873    checkpoint33
2874     o Fixed bug in lower BC in impldiff.F
2875     o Fixed confusion about units of forcing arrays in FFIELDS.h
2876       namely Fu,Fv,Qnet,Qsw,EmPmR:
2877       - Removed verification/natl_box/code/external_fields_scale.F
2878         (did not differ from that in model/src)
2879       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2880         (see FFIELDS.h for description)
2881       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2882         kpp_calc.F and kpp_transport_t.F
2883       - Removed model/src/external_fields_scale.F and calls to it
2884       - verification/natl_box uses flux data with "atmospheric" sign so
2885         a special version of external_fields_load.F is used to
2886         change the data as it's read in. This way, the arrays
2887         have the right units and signs at all times tha a user could
2888         possibly use them.
2889     o Corrected genmake to delete a temporary file during configuration
2890    
2891    checkpoint32
2892     o Scaling of forcing fields moved from external_forcing.F to
2893       external_fields_scale.F, called directly after loading fields.
2894     o Surface relaxation terms added to surface tendency fields in
2895       extra subroutine.
2896     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2897       fields.
2898     o Changes in GMRedi to comply with packaging structure.
2899     o Modifications and bug fixes in KPP package.
2900     o Verification experiment for KPP added (verification/nat_box/)
2901    
2902    checkpoint31
2903     o Packages interface brought in line with defined standard
2904       -> new routines packages_...F
2905       -> changes in initialise_fixed.F, initialise_varia.F
2906       -> enables initialisation interface for ECCO package
2907     o Rescaling of external forcing fields immediately after read
2908       (removed from external_forcing.F)
2909       -> new: surface_fields_scale.F
2910       -> affects ini_foorcing.F, external_fields_load.F
2911     o Computation of surface tendencies before tendency updates.
2912       -> new: external_forcing_surf.F
2913     o Change of variable names useGMRedi, useKPP, useECCO
2914     o Further changes in dynamics.F, impldiff.F for TAMC
2915     o Tested for experiments 0, 2, 4.
2916       - not yet tested for GMRedi.
2917       - not yet tested for KPP.
2918    
2919    checkpoint30
2920     o Updates for OBCs
2921     o New experiment for test OBCs (internal_wave)
2922     o New output.txt in verification/exp4/results/
2923     o Updates for KPP: calculation of viscosity corrected, new variables
2924       kpp_dumpFreq and kpp_taveFreq
2925     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2926       and entry for T90 in genmake
2927    
2928    checkpoint29
2929     o packaged KPP and GM/Redi
2930    
2931    checkpoint28
2932     o Corrected initialization of hFacMin for difference vertical coordinates
2933     o Modified calculation of partial cell thickness to more robust algorithm
2934     o config_summary.F: replaced write_1D_... by write_0D_...
2935       read_write.F: added subroutines write_0D_...
2936     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2937       included some initialisations required for TAMC.
2938     o routine calc_isoslopes: modified sqrt computation to make it
2939       differentiable for zero argument.
2940     o routines dynamics, impldiff:
2941       included store directives and tape key computations required for TAMC.
2942     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2943    
2944    checkpoint27
2945     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2946       formulation works properly with variable resolution.
2947     o restructured the calling tree between the_model_main() and dynamics()
2948     o split initialise() into initialise_fixed() and initialise_varia()
2949     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2950       in new routine ini_psurf()
2951    
2952    checkpoint26
2953     o moved some #ifdef in optional routines to encompass everything
2954       except the argument declarations. This was using up some memory.
2955     o fixed macros like _ADT to work with both versions of Linux cpp
2956     o cleaned up some unused and uninitialized variables
2957       (helps when debugging with strict compile options)
2958     o split up CPP_EEOPTIONS.h into options and macros
2959       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2960     o patch for 2 processor JAM mode
2961    
2962    checkpoint25
2963     o updates for OBCs and NH
2964     o dramatically reduced memory usage
2965     o added "JAM" routines for use on Artic network
2966     o parameterization of convection by implicit vertical diffusion
2967     o added a diagnostic of convective index
2968     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2969       (this is was partly for OBCs and NH but also in anticipation of
2970        an explicit free-surface option)
2971     o initial state input files for U and V
2972    
2973    checkpoint24
2974     o Removed some spurious "REAL"s
2975     o Updated KPP to latest version from JPL
2976     o Added a COS(latitude) in horizontal viscosity
2977    
2978    checkpoint23
2979     o Added del^4 diffusion for salt and temperature
2980     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2981    
2982    checkpoint22
2983     o Made many small changes: implicit none, format(i5), etc...
2984     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2985    
2986    checkpoint21
2987     o Introduced new I/O package that supports direct-access records (mdsio.F)
2988     o Split-up mid-level I/O routines
2989     o Updated input data for experiments 0,1,2,4 and 5
2990     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2991    
2992    checkpoint20
2993     o Tidied up open-boundaries some more
2994     o Added non-hydrostatic code
2995     o Fixed some input data
2996     o Modified MPI start-up to work in "coupled" context.
2997    
2998    checkpoint19
2999     o Tidied up directory structure for verification experiments.
3000     o Added new code for open boundaries.
3001     o Corrected advective terms near boundaries.
3002     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3003     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3004     o Split default parameters out of ini_parms.F into set_defaults.F.
3005    
3006    checkpoint18
3007     o Further changes for optional code generation with
3008       CPP - ugh!
3009    
3010    checkpoint17
3011     o Beginning to incorporating modularity
3012       for supporting atmos. and ocean configs.
3013     o Small changes for TAMC complinace
3014     o New ultra simple test case. Barotropic box
3015       configuration "exp0".
3016    
3017    checkpoint16
3018     o Minor changes to exchange routines to support
3019       accumulation in reverse mode. Adjoint of an
3020       assignment is an addition.
3021     o Changes to support compilation by TAMC (LR(1)
3022       syntax) and by g77 under Linux ( 72 character
3023       limit ).
3024    
3025  checkpoint15  checkpoint15
3026   Rewrote exchange routines to allow   Rewrote exchange routines to allow
3027   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.

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