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revision 1.114 by jmc, Fri Jan 3 04:07:52 2003 UTC revision 1.685 by baylor, Thu Jun 22 19:39:21 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
8       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
9    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
10    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
11    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
12       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
13    o tracer advection:
14     - clean-up and simplify calc_common_factors.F
15     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
16       advection subroutine (but still not used within DST advection S/R)
17    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
18    
19    checkpoint58j_post
20    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
21      from file (collects calls previously in FORWARD_STEP)
22    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
23    o adjoint store dir. adjusted accordingly
24    o genmake2
25      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
26    
27    checkpoint58i_post
28    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
29      on wind stress (SEAICEstressFactor defaults to 1.)
30    o Total number of Timers is finite (<=40): comment out 2 non-essential one
31      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
32    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
33      on CS-grid: no longer loosing mass.
34    o exf & curvilinear-grid: no longer modify longitude xC & xG.
35    o pkg/ggl90: fix sloppy output and fix a bug
36    o pkg/seaice: added SEAICEuseEVPpickup parameter
37      - Set to false in order to start EVP solver with
38        non-EVP pickup files when using SEAICEuseEVP
39      - fix sign error in diffusion in seaice_calc_rhs
40    
41    checkpoint58h_post
42    * Modifications for bottom topography control
43      o replace hFacC by _hFacC at various places
44      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
45      o add non-self-adjoint cg2d_nsa
46      o update autodiff support routines
47      o re-initialise hfac after ctrl_depth_ini
48      o works for 5x5 box, doesnt work for global_ocean.90x40x15
49    * Adding verification for 5x5 box (4-layer) bottom topography control
50    
51    checkpoint58g_post
52    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
53       used for mean seasonal cycle, mean diurnal cycle); add an example
54       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
55    o pkg/ggl90:
56      - add parameter (minimum surface kinetic energy)
57      - fix bug (avoiding division by zero)
58    o couple pkg/thsice to pkg/seaice:
59      - modify advection in seaice to accomodate new scalar fields to be advected
60      - only muliDimAdection scheme work with seaice/thsice
61      - mapping of thsice-variables to seaice-variables, back and forth
62      - does not break the verification experiments, but does not give the
63        desired results either
64    o pkg/seaice
65      - make (default) second order advection a bit less confusing?
66    
67    checkpoint58f_post
68    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
69      to pkg/seaice):
70      - new routines thsice_map_exf and thsice_get_exf provide the interface
71      - add an additional formal parameter to thsice_solve4temp
72    o pkg/exf:
73      - add new fields wspeed, snowprecip (to be able to couple to thsice)
74      - correct Stefan-Boltzmann constant
75      - new parameter for longwave surface emittance
76      - separate some stuff from exf_bulkformulae into new routines  
77        exf_radiation, exf_wind
78      - add new parameters and constants: longwave emissivity for ocean, ice
79        and snow, evaporation parameters over ice
80      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
81        either wind from stress or stress from wind
82    o pkg/thSIce:
83    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
84    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
85       and THSICE_CALC_THICKN
86    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
87    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
88      to make debugging easier.
89    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
90    o pkg/bulk_force:
91      - clean-up comments and parameters ;
92      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
93    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
94      generate new output for test-experiment: aim.5l_cs.thSI
95    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
96      testreport accordingly
97    
98    checkpoint58e_post
99    o SEAICE_CGRID adjoint done
100    o R_STAR adjoint implemented.
101      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
102      * need to sort out init. of h0facc, etc.
103    o Make pkg/profile fully independent of ecco,cost, etc. stuff
104      to be able to use it in pure forward.
105    
106    checkpoint58d_post
107    o upgrade simple test-experiment to tutorial example:
108     step.1: duplicate the experiment and (step.2) will remove the old copy.
109      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
110      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
111      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
112      tutorial_global_oce_biogeo    <- copy of dic_example
113      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
114      tutorial_plume_on_slope       <- copy of plume_on_slope
115      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
116      tutorial_global_oce_optim     <- empty for now (David ?)
117      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
118     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
119    o correct a sign problem in cost_scat.F
120    o obcs and ptracers: fix boundary conditions for advections schemes
121      with larger stencil
122    o thsice adjoint: start
123    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
124      completeness
125    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
126      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
127    o ptracers adjoint:
128      * avoid extensive recomputatations
129      * fix missing re-init. of gptr (missed by TAF)
130    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
131      me to turn off the excessive output to STDOUT that this package produces
132    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
133      and add those terms in Vector-Invariant formulation.
134    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
135      if the control period (xx_hfluxperiod etc) is 0
136    o in profiles pkg, clean routines and fix details
137    o in ecco pkg, reading ssh data:
138      fix problem in case the model does not start at iter0=0
139    o fix mnc-pickup/restart for ptracers
140    o new package prifiles:
141      code to compute profile-based cost by Gael Forget
142      (modifs in ecco, ctrl, autodiff)
143    o Benign bug fix in initialization (spotted by M. Mazloff) of
144      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
145    
146    checkpoint58c_post
147    o adjoint: finish NLFS adjoint and provide reference output in
148      verification/global_ocean.90x40x15/results_ad_nlfs
149    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
150      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
151      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
152      with SEAICE_CGRID defined.
153    o move calendarDumps from "data" to "data.cal" and clean-up the code
154      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
155    o add useEXF & useCAL flags (for now, set in hard-coded way)
156    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
157      (were missing in NH mode, and wrong in quasihydrostatic mode).
158      waiting for Chris updated version of calc_gw to add those CALLs.
159    o fix bug in quasihydrostatic S/R ;
160      add a test for this option: global_ocean.90x40x15.qshyd
161    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
162      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
163    o add on/off flag useOffLine for package OFFLINE
164    o seaice:
165      - modify advection so that it works also on the C-grid
166      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
167        problem in multi-tile runs with C-grid
168      - add flags for clipping ice velocities and/or masking solver forcing
169      - fix drag (ocean on ice) formulation and a bug that caused noise in the
170        C-grid solver
171      - added a few comments to seaice_diffusion.F
172      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
173        are now exclusive)
174      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
175        required re-ordering the code a little:
176       + make DAIRN global variable (defined in SEAICE)
177       + move computation of the viscosities eta and zeta into a new separate
178         routine (because I need to recompute them in seaice_ocean_stress.F)
179    
180    checkpoint58b_post
181    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
182      update output.txt of exp. aim.5l_cs.thSI
183    o various mnc cleanups and improvements:
184      + shrink lookup tables by factor of ~4
185      + better error reporting when running out of lookup space
186      + able to handle longer path/file names (up to 500 chars)
187    o adjoint:
188      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
189      - TBD: "hidden" mom_vecinv recomp. in dynamics
190    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
191     (allow to differentiate between forcing components using new integer flags:
192      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
193     and add new flag to put Dissipation tendency out of Adams-Bashforth.
194    o ecco
195      - enable trend removal from SSH anomaly obs.
196    o adjoint
197      - a fix for PmEpR when #undef EXACT_CONSERV
198      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
199      - try to fix "hidden" recomp. in forward_step for NLFS
200        (NLFS seems broken sometimes after I checked it in)
201    o seaice:
202     - add c-grid version of the dynamic solver:
203       + three new routines that are the c-grid substitute lsr, dynsolver
204         and ostres
205       + put a few fields that were local to dynsolver into global common
206         blocks, so that I can move the computation of stresses etc into
207         seaice_lsr (saves coding but may break the adjoint).
208     - replace more hardwired parameters by runtime parameters
209     - add ice masks that mask the rhs of the implicit solvers where there
210       is no ice (commented out in seaice_dynsolver, because i am not sure
211       if this works properly), eventually this should replace the clipping
212       of ice velocities in seaice_dynsolver to +/-40cm/s.
213    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
214      include it only where its needed
215    o move balancing of fluxes before the call of external_forcing_surf
216    o seaice:
217      - correct units of turning angles (now they are really in degrees)
218      - move computation of GWATX/Y out of main routine into dynsolver
219      - initialize GWATX/Y in seaice_init
220    o Apply mask on Fresh-Water flux (needed for SSH forcing).
221      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
222    o seaice: add runtime flags for turning angles (default to zero)
223    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
224      and trend from exf forcing and ctrl control adjustments
225    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
226      (since checkpoint57x_post)
227    o change the default rotation period to 86164.s = the Earth rotation
228    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
229      and based on a reference stratification. Tested within hs94.cs-32x32x5.
230    o seaice advection: add code for choosing between the default (2nd order
231      central differences) and multiDim advection schemes provided by
232      pkg/generic_advdiff
233    o seaice:
234      - removed all references to SEAICE_GRID.h fields from
235        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
236        (cubed-sphere configuration will change a little)
237      - grid computations in seaice_init are obsolete now.
238      - cleaned up code a little so that is easier to read (hopefully).
239      - added new (better?) discretizations of default advection and diffusion
240        (turn on with SEAICEuseFluxForm)
241      - replace 1 in 3d global fields by kSurface in growth.F
242      
243    checkpoint58a_post
244    o seaice:
245      - bug fix in advect.F
246    o shelfice:
247      - separate shelfice load anomaly from pload (breaks with time
248        dependent forcing), => introduce constant field shelficeLoadAnomaly.
249        Its default is 0., but it may be computed more cleverly from (unknown)
250        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
251        done offline. A good approximation of the pressure load anomaly is
252        necessary to avoid large initial adjustment processes underneath
253        deep-reaching shelfice.
254      - small fix in ISOMIP shelfice_thermodynamics
255      - add more sophisticated thermodynamics of Hellmer (1989), this is
256        now the default
257      - give a few constants more intuitive names
258    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
259      if bulk formulae are used in long integration (especially EmPmR). Turn
260      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
261      if balancePrintMean, the imbalance that is substracted is printed to
262      STDOUT.
263    o fix bug (typo) in obcs_apply_eta.F
264    o add a new package shelfice which enables us to model the circulation
265      underneath shelf-ice with draughts of hundreds of meters.
266     - works
267     - to do: + include improved thermodynamics
268              + check whether kSurfC (from model/inc/SURFACE.h) can be used
269                instead of new field kTopC
270              + can we use topoFile, Ro_surf and existing code in ini_depth.F
271                instead of new field R_shelfIce and new code in ini_depth.F
272                and ini_mask_etc.F?
273              + adjust vertical mixing schemes?
274    o seaice pkg:
275     - add a cpp-flag to include a simple formula for a salinity dependent
276       freezing point of sea water at the surface
277     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
278       meridional stresses are now different (and hopefully correct)
279    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
280       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
281       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
282    o pkg/diagnostics: add options and parameters for regional-statistics
283       diagnostics ; define regions by reading a region-mask from a file
284       (might add other options later)
285    o pkg/bulk_force:
286     - add option and parameters to use AIM surface-flux formulae.
287     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
288       others forcing fields (defined in PARM05, parameter file "data") are loaded
289       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
290     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
291     - use the right EXCH call for uwind,vwind (to work on CS-grid).
292     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
293       and parameters (note: calcWindStress replaces .NOT.readwindstress).
294     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
295    
296    checkpoint58
297    o add "--embed-source" option to genmake2 which, when the supporting
298      tools can be compiled (as determined by genmake2) will turn on the
299      embed_files package which then embeds the entire MITgcm source code
300      (*.[fFhc] + Makefile) used for the build within the executable
301      - requested by CNH but off by default
302      - adds a paltry <9MB to the mitgcmuv executable in most cases
303      - only writes the output when useEMBEDSRC in eedata is true
304    o clean up 3-dim. relaxation codes:
305      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
306      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
307      * Thanks to Tom Haine for testing!
308    
309    checkpoint57z_post
310    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
311      affects output (@ truncation level) of exp. plume_on_slope ; updated.
312    o fix the pickup behavior for obcs in combination with ptracers
313    o fix a bug in ptracers_external_fields_load
314    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
315      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
316    o transfered surface NH pressure to eta field (if exactConserv).
317    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
318         and update lab_sea output.txt file.
319    o completing 3-dim. relaxation code: additional term
320         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
321      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
322      * At compile time, in "EXF_OPTIONS.h" set
323          #define  ALLOW_CLIMTEMP_RELAXATION
324          #define  ALLOW_CLIMSALT_RELAXATION
325      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
326          tauThetaClimRelax3Dim = 15552000.0,
327          tauSaltClimRelax3Dim  = 15552000.0,
328      * 3 cases:
329          1) Use a constant-in-time 3-dim. field
330          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
331          3) Real-time relax. to time-evolving prescribed field
332    o Adding Laplacian-type smoothness constraint on
333      initial and boundary (forcing) controls (ic, bc)
334      * enable at compile-time via
335        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
336      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
337      * Absolute scale somewhat unclear so far
338      * no area weighting was included since no other cost term does so far
339    
340    checkpoint57y_post
341    First step for a NLFS adjoint
342    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
343    o new init. routines for calc_r_star, calc_surf_dr
344    o still need to deal with ini_masks_etc
345    o testreport seemed happy
346    checkpoint57y_pre
347    
348    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
349    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
350    o add new offset feature to offline pkg (plus minor cleanup)
351    o cfc fixes for final year of integration
352    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
353      be in GCHEM_OPTIONS).
354    
355    checkpoint57x_post
356    o fix testreport Pb in multiple test experiment.
357    o cleanup our namelist syntax in verification:
358      - make it more F95 standards compliant (some work still needed)
359      - allows the vast majority of our tests to work with gfortran
360    o Non-Hydrostatic:
361     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
362     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
363    o Allow to apply AB on T,S rather than on AB(gT,gS):
364     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
365     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
366       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
367     - need a "clever" read_pickup to restart from the other AB formulation
368    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
369    o remove some unused variables (reduces number of compiler warnings)
370    o adjoint
371      * Disable useVariableViscosity for adjoint for time being
372        (there are a number of extensive recomputations)
373      * Initialize certain variables needed for adjoint
374    
375    checkpoint57w_post
376    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
377                 fix the singleCpuIO RS version of MDSWRITEFIELD
378       and add a WARNING if using globalFiles=T with multi-processors.
379    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
380      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
381    o tracer advection scheme:
382      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
383       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
384       was not very convenient).
385      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
386       (further tests needed for the implicit DST & Flux-Limiter schemes).
387    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
388      and sRef for convenience, handy, when you want to initialize
389      ptracers in a large domain with a constant non-zero value. Also,
390      untangle ptracers_init.F a little.
391    
392    checkpoint57v_post
393    o change dome exp. to use variable viscosity in side-drag terms.
394    o remove all the files from the cfc_offline test since they are now
395      incorporated into tutorial_cfc_offline which has been producing
396      identical results for a few days of testing
397    o add new parameter: sideDragFactor to enable half-slip-side BC
398      and change side-drag S/R to use viscosity from mom_calc_visc
399      (can switch back by setting sideDragFactor=0.); affects results at
400      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
401       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
402    o vorticity & strain are now computed without masking, to account for
403      no-slip-side BC in variable viscosity calculation ; mask is applied
404      anyway later on, before computing advection/coriolis terms.
405    o modify exp4 to test new obcs support for reading from external files
406      and for passive tracers
407    o fix behavior of ptracers_monitor when monitor output is written to a
408      netcdf-file; still not independent of monitor.F (writes in the same
409      file).
410    o change default value of tRef (put a uniform, meaningful value for ocean
411      & atmos) and initialize sRef (was missing, as Martin mentioned).
412    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
413      to be proportional to enstrophy dissipation length.  Thus,
414       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
415      This is now consistent with Smagorinsky and with the manual.
416    
417    checkpoint57u_post
418    o OBCS and PTRACERS: add open boundary support for passive tracers
419      - either use homogenous (pseudo) v.Neumann conditions or prescribe
420        OB-values from file; this is not different from the way theta and salinity
421        are treated
422      - however, Orlanski-radiation conditions are not supported, and the model
423        will stop if you use pTracers and Orlanski at the same time.
424      - beefed up the rountine obcs_external_fields_load: now only those open
425        boundary values are overwritten with values from files for which there
426        are really files, otherwise the OB-fields remain untouched. This makes
427        it possible to use different OBs at different ends of the domain (as
428        with EXF)
429    o reduce number of exch calls in shap_filt (s2).
430    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
431      truncation level) 4/5 MLAdjust test results (11&12 digits match).
432    
433    checkpoint57t_post
434    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
435    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
436      same truncation, independent of the face number: affects affects several
437      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
438    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
439      note that biharmonic viscosity + no-slip was not tested in any experiment.
440    o fix bug in non-linear free-surf side-drag ; generate new output for
441      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
442    o make mnc honor the writeBinaryPrec flag for most kinds of output
443    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
444    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
445      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
446    o add brackets in multi-terms sum to get same truncation, independent of
447      the face number (manage to get exactly same value of gU,gV at the cs-edge)
448      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
449    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
450      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
451      a maximum grid-scale Reynolds number.  Also, changes all length calculations
452      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
453      Suggested values of viscosity parameters found in mom_calc_visc.
454      Many new viscosity diagnostics available.
455    
456    checkpoint57s_post
457    o Add clearing-house for viscosity calculations, mom_calc_visc and
458      correct numerous bugs in LeithD and Smagorinsky discretizations.  
459      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
460      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
461      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
462      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
463      The Strain-Tension form is now called with useStrainTensonVisc=.true.
464      ViscAhStrain and viscAhTension are now retired.
465    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
466    o In response to JMC's bug report, genmake2 now ignores any soft-links
467      that it finds in the *current* directory when searching for files.
468      Soft-links found in any other source directories will still work as
469      they did before.
470    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
471      a C routine to unlimit the stack size
472    o mnc-ify pkg/aim snapshot vars
473    o mnc-ify pkg/land as requested by Daniel
474    o various changes to mnc including:
475      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
476      - output can now be grouped so that all files within a group
477          change the ITER portion of their names in lock-step together
478      - can now read ("global") PER-FACE (in addition to PER-TILE) files
479          and works with both EXCH1 and EXCH2 (but needs more testing)
480      - writing works for all verification test cases w/ g77 on Linux
481    
482    checkpoint57r_post
483    o make MNC variable initialization happen earlier
484    o add diagnostics for (almost) each term of the momentum Eq.
485    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
486    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
487    o remove MINIMAL_TAVE_OUTPUT option ;
488      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
489    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
490      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
491    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
492    o add time-dependent SST, SSS control
493    o cost terms in ecco/ modularized (new cost_generic.F)
494    o cost_averages routines are modularized (new cost_averagesgeneric.F)
495    o new infrastructure for seaice model vs. obs misfits in seaice/
496      * driver from the_main_loop.F is seaice_cost_driver.F
497      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
498      * gradient check in Exp. 6a of natl_box_adjoint/
499    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
500      (see README file)
501    
502    checkpoint57q_post
503    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
504    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
505      - bug was reported by Jean-Michel and Ian Fenty
506    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
507      update exp. cpl_aim+ocn output.
508    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
509      Needed for high-res. runs with large global files
510      to be able to limit tapelev size
511    o Changed some tests for adjoint:
512      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
513      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
514      * global_ocean.90x40x15/ back to default 3-level checkpointing
515    o Modifications to enable scripted COMMON to MODULE conversion
516      * verification/OpenAD/code/ has necessary scripts and description;
517      * converts, compiles and runs successfully;
518    
519    checkpoint57p_post
520    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
521    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
522      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
523    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
524    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
525      (was already the case for dissipation with mom_vecinv,
526       and also the case for grad.PhiHyd when staggered-timeStep)
527      This will allow to put dissipation out-off the AB time-stepping.
528     Unfortunately, affects truncation error. Update output of exp. that "fails"
529      (cg2d matching number) and leave the others for later: front_relax(10),
530      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
531      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
532    
533    checkpoint57o_post
534    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
535      (2) its ready to be documented during the 20050801 DocFest
536    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
537      for ideal_2D_oce and lab_sea on linux_ia32_g77
538    o set to #undef CTRL_SET_OLD_MAXCVARS_30
539      in global1x1_tot/code_seaice_adj to access indices 32, 33
540      (worth another tag)
541    
542    checkpoint57n_post
543    o adding precip control xx_precip 32
544    o adding swflux control xx_swflux 33
545    o Replacing 10 forcing penalty cost routines by 1 generic.
546    o Implementing partitioning in time-mean and variable adjustment
547      for atmos. state.
548    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
549    o in natl_box_adjoint:
550      * updated exp 1 to 10
551        (but does not have time-mean vs. variable split results yet)
552    o updated global1x1/*_seaice_adj/
553      to incorporate latest changes
554    o enable useSingleCpuIO for mdsio vector routines
555      (applies in particular to tapelev I/O)
556    o removed inefficient K-loop in all active_file*control*.F
557    
558    checkpoint57m_post
559    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
560      and advect_cs (use EXCH-2 and standard cs-32 grid files).
561    o pkg/exch2: filling of face-corner halo regions is optional
562      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
563    
564    checkpoint57l_post
565     tag before updating tutorials (pre-release-2)
566    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
567       for output and interpolation of input fields onto model grid)
568    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
569       Affects results of exp. rotating_tank ; update output.txt.
570    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
571          and taking the square quantity and/or using a fraction-weight field.
572    o fix aim_diagnostics_init.F mate numbers.
573    o add mnc output capability to diagnostics/diagstat and update
574      our cvsignore files for the ACSII output generated
575    
576    checkpoint57k_post
577    o lab_sea now uses diagnostics package and provides a suite of
578      new EXF diagnostics output.
579    
580    checkpoint57j_post
581    o exf
582      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
583        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
584        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
585      * extended diagnostics output
586        - now includes all EXF variables
587        - hs, hl moved to common block
588        - separate S/R for diagnostics, called after ctrl vector is added
589        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
590        - EXFqnet contains true Qnet (i.e. includes qsw)
591      * updated verif. lab_sea, global_with_exf
592      * Rearranging hflux (exf_mapfields -> exf_getforcing)
593        to ensure that diagnostics sees a true EXFqnet
594    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
595    o diagnostics pkg: change pointers so that 1 diagnostic can be used
596      several times with different frequencies.
597    o mnc-ify the thsice package as requested by Daniel Enderton
598      - the monitor--MNC output needs work
599      - many attributes need to be added (most are currently blank)
600    o mnc-ify theaim_v23 package as requested by Daniel Enderton
601      - many attributes need to be added (most are currently blank)
602    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
603    o add Sadourny like discretization to the 4th.O vorticity advection scheme
604    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
605      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
606         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
607    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
608     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
609    
610    checkpoint57i_post
611    o Diagnostics package was changed: diagnostic allocation is now deactivated
612      by setting an empty file name in the namelist (used to be by setting 0 frequency)
613    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
614      add 1rst Order upwind vertical Shear.
615    o add a quick fix for A/B checkpointing in OFFLINE mode
616    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
617      end-run around the C/Fortran linking horror in eesup/src/timers.F
618    o added pkg/runclock: allows user to terminate run based on wall clock
619    o added non-hydrostatic scaling parameter: nh_am2
620    o pkg/my82: futile attempt to make results compiler-independent by adding
621      some "_d 0", etc. no effect.
622    o for mnc output, fill the 'T' coordinate var with myTime and create a
623      separate 'iter' variable for iteration count
624    o pkg/diagnostics:
625      add new capability: output of Global/Regional & per-level statistics ;
626      tested against monitor output (including land & thSIce) on various exp.
627    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
628    
629    checkpoint57h_done
630      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
631      data.diagnostics, data.gchem, data.ptracers) is done.
632    
633    o pkg/diagnostics: prepare for Global/Regional statistics.
634      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
635    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
636      and rename it: DIFFERENT_MULTIPLE
637    
638    checkpoint57h_post
639    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
640    o pkg/diagnostics: change output frequency, now in seconds (instead
641      of Nb of iterations). This requires to change data.diagnostics.
642    checkpoint57h_pre
643    
644    o in mnc, let the user create the output dir if both mnc_outdir_date
645      and mnc_outdir_num are false
646    o add fflags() to pkg/diagnostics which allows one to specify, on a
647      per-file basis, the file precision [default behavior is unchanged]
648    o added diagnostics to pkg/kpp, including computation of mixed layer
649      depth based on a temperature/density criterion
650    o updated verification/natl_box to test the new pkg/kpp diagnostics
651    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
652    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
653    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
654      not mnc -- this mistake was found by JMC and is now corrected
655    
656    checkpoint57g_post
657    o add Adams-Bashforth 3rd Order time stepping:
658      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
659      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
660    checkpoint57g_pre
661    
662    o make lambda[Theta,Salt]ClimRelax spatially varying
663      (default remains spatially uniform constant based on tau)
664    o added new control variables
665      * init. uVel, vVel, etanN
666      * lambda[Theta,Salt]ClimRelax
667    o separate masks used for ctrl_pack/unpack 'from write_grid' output
668      (suggested by G. Forget)
669    
670    checkpoint57f_post
671    o add parameter "baseTime" = model base time = time at iteration zero
672      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
673      account for baseTime shift
674    o move Coriolis arrays from PARAMS.h to GRID.h
675    checkpoint57f_pre
676    
677    o mnc-ifying the seaice package
678    o introduced an alternative length scale calculation for use in the limiting
679      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
680    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
681    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
682      as well as grad(vort3).  Made it compatible with both approximate form
683      for the cubed sphere and full form of these gradients.  Added flag
684      useFullLeith to select between approximate and full form.  
685    o add "d0" in getcon.F to reduce differences between compilers/platforms
686      update output.txt of exp. fizhi-gridalt-hs
687    o change port_rand funtion to allow to set the seed.
688    o fix obscure MNC bug involving conversion between reals and integers
689      - it caused no problems with certain (eg. gcc, ifc) compilers but the
690        new version is now more standards-compliant
691    o adjoint-related modifications
692      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
693      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
694      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
695    
696    checkpoint57e_post
697    o Adding eddy stress controls a la Ferreira et al.
698    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
699    
700    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
701      update output.txt of exp. fizhi-gridalt-hs
702    o add more "Z" dimensions and associated coordinate vars to MNC
703    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
704    o parameter calendarDumps: when set, approximate months (30-31 days) and years
705      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
706      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
707      months and years.  Requires pkg/cal.
708    o diagnostics: add pickup functionality
709      - off by default for backwards compatibility
710      - current version only uses MDSIO -- MNC will be added
711    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
712    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
713    
714    checkpoint57d_post
715    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
716    o modify verification/ideal_2D_oce so that it tests the creation of mnc
717      output from the diagnostics package
718    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
719    o make genmake2 more portable by using ".$FS" instead of ".f" for more
720      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
721    o add coordinate variables to the MNC output from the diagnostics package
722    o change MNC-flags default value: true when useMNC=TRUE
723    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
724      the ability (off by default) to read the grid information using MNC
725    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
726    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
727    o do snap-shot diagnostics at the middle of the time-interval (instead of
728      at the end).
729    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
730      new test for AIM with thSIce + slab-ocean
731    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
732    o move state variable diagnostics to the beginning of the time step ;
733      (note: still needs some work specially for snap-shot diagnostics)
734      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
735    
736    checkpoint57c_post
737    o Change testing option (-ieee) to get closer agreement between g77 & ifort
738    o generate new output.txt files on faulks with g77 & the new -ieee option
739    checkpoint57c_pre
740    
741    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
742      update output.txt of exp. global_ocean.90x40x15
743    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
744      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
745    o add saltFlux(+File) forcing capability with periodicExternalForcing
746    o allow to use pkg diagnostics for GM-Redi & ThSIce output
747    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
748    o improvements for the MNC output from DIAGNOSTICS:
749      - correct handling of the unlimitied dimension
750      - all dims now have associated coordinate variables
751      - variables located at U, V, and Corner ("Z") points are now written
752        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
753        *all* data points are output
754    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
755    o added pkg/seaice/seaice_monitor.F
756    o mdsio_readfield.F can now read files visible only to master MPI process.
757    o pkg/seaice: some test code for ice-modified ocean stress
758    o exf_getffields interpolation defaults to bilinear for all scalar forcing
759      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
760      spurious negative numbers for precipitation and humidity.  Will cause
761      some small numerical differences for integrations using pkg/exf/exf_interp.F.
762    o pkg/ctrl/
763      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
764        May be enabled via doPackDiag
765      *  introduce z-scaling of
766         + gradient (doZscalePack) and
767         + control (doZscaleUnpack)
768    o pkg/mdsio/
769      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
770      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
771    
772    checkpoint57b_post
773    o simplify options in diagnostics_fill arguments (remove weird combinations)
774    o fix MNC coordinate variables so that they now contain per-face index
775      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
776      general, EXCH2 grids are only aligned to a "local" coordinate system
777    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
778    o Implement instantaneous output within pkg diagnostics:
779      setting a negative frequency in data.diagnostics produces
780     "snap-shot" output (as opposed to time-average if freq > 0)
781    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
782      NOTE: change ptracer diagnostics name: use 2 characters to work with
783            more than 9 tracers. Add also diagnostics of advect & diffus flux.
784    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
785      becomes the coordinate variable for the 'T' dimension
786    o add CF-style coordinate variables to MNC
787      - just a first cut:  numbers are meaningless on the cubesphere and
788        missing along the T axis but otherwise it works!
789    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
790    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
791    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
792      this is based directly on what the model compute, so that the content of
793      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
794    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
795    o clean up build options files for SunOS, in particular
796      - remove -traditional from xmakedepend
797      - change -xarch=v9 to -xarch=native for f77
798      - restore use of make (not gmake)
799      - add CC=gcc if using g77
800    o changes per discussion of AM, JMC, & EH3 today:
801      - move redundant "grid" variables out of "state" -- in preparation of
802        creating proper CF-style coordinate variables and in recognition
803        that any/all grid variables can be easily copied (eg. w/NCO) from
804        the grid files into any of the other NetCDF files
805      - *always* output grid variables with MDSIO (this will eventually be
806        changed)
807      - output MNC grid file if useMNC is true
808    o every instance of _END_MASTER() has been found and replaced with
809      _END_MASTER( myThid ) in order to satisfy certain picky Sun
810      preprocessors
811    o re-arrange diagnostics pkg initialisation:
812     - allow each package to extend the available diagnostics list
813     - add some checking and fix small problems (multi-threaded, ...)
814     - new S/R diagnostics_fill (replace fill_diagnostics):
815       look through the short list of active diag. (instead of the long list)
816       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
817    
818    checkpoint57a_post
819    o this set of changes restores TAMC compatibility
820      tested for global_ocean.90x40x15 adjoint on trough
821      (what a pain)
822    
823    checkpoint57a_pre
824    o some modifs in tools/build_options for sunos
825    o call ctrl_pack for ctrl at end for optimcycle=0
826    
827    checkpoint57
828    o add horizontal bi-harmonic viscosity for vertical velocity
829      - new parameter viscA4W (defaults to viscA4)
830      - affects only non-hydrostatic code
831      - to be done: no-slip lateral boundary conditions
832    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
833    o implement Implicit Vertical advection for pTracers
834    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
835      (implemented also for implicit vertical diffusion & advection)
836    o OBCS: extend application of tracer open boundary conditions
837      to a strip beyond the boundary of width Olx/Oly
838    o add call monitor to TAF set of required calls (flow directives)
839      and include in natl_box_adjoint
840    o untangle a few ifdefs related to cost, ctrl, autodiff
841      untangel a few ALLOW_ECCO_OPTIMIZATION
842    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
843      (theta2, salt2 in ecco_cost_weights)
844    
845    checkpoint56c_post
846    o OBCS as control variables
847      - update ctrl_ad_diff.list, obcs_ad_diff.list
848      - remove balance of obcs controls from default
849      - fix index bug nobcs in ctrl_init
850      - fix dummy fields filen in ctrl_pack
851      - add dummy weights for obcs
852    o lsopt: comment out fort.94 output
853    o optim:
854      - remove unnecessary header files
855      - adjusted namelists
856      - add xerbla.F to Makefile
857    o exf:
858      - multiple modifications of exf_check_range
859      - unit change in exf_init_runoff from [m/year] to [m/s]
860    o mdsio:
861      - i/o-vector change debugLevel from debLevA to debLevB
862    
863    checkpoint56b_post
864    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
865      is called from DO_THE_MODEL_IO
866      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
867      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
868      - clean up PTRACERS_WRITE_TIMEAVE a little
869    o add another verification experiment that tests both the cfc-pkg and
870      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
871      reactive tendencies treated inline with regular timestepping
872    o testreport previously did a lousy job of comparing small numbers, so
873      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
874      implemented in the little c-progam tmp_cmpnum.c which is embedded in
875      testreport.
876    o ptracers_monitor: bug fix for MPI
877    
878    checkpoint56a_post
879    o GCHEM: finish reorganizating the package
880      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
881        (introduces another 3D-array for each passive tracer, but only if
882        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
883        gchemTendency is not needed because the timestep is done separately)
884      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
885      - GCHEM is now---more or less cleanly---separate from PTRACERS
886      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
887        so clear to me how that should be done in a general way.
888    o CFC: improve formatting of output in CFC_ATMOS
889    o PTRACERS:
890      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
891        that ALL experiments with ptracers enable can be checked. This makes
892        GCHEM_MONITOR obsolete.
893      - include a runtime parameter PTRACERS_monitorFreq that defaults to
894        monitorFreq
895      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
896    o add PTRACERS (PTR0[1-5]) to testreport output
897    o exf_check_range:
898      * default changed to .TRUE.
899      * will check values for niter0 if debLevA, every timestep if debLevB
900      * STOP in exf_check_range if 'out of range'
901      * range chosen generous to allow for potential extema
902      TBD: a version with stricter range
903           permitted range would be runtime parameters
904    o GMredi:
905      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
906      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
907      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
908    o GCHEM:
909      - move call to GCHEM_FORCING_SEP, so that it is now called before
910        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
911      - introduced a useGCHEM runtime flag and applied it everywhere.
912      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
913        this flag is now only visible within GCHEM-pkg routines.
914      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
915        be replaced by a 3D array that is computed before thermodynamics; for
916        this, the tracer ID iTracer had to be included into the parameter list
917        of ptracers_forcing
918      - set up forward_step to call gchem_forcing, that will replace
919        gchem_forcing_int in ptracers_forcing
920      - cleaning up
921    o small cleaning of exch2: remove files that are also in eesupp/src
922    
923    checkpoint56
924    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
925    o mnc: cleanup "full" files--fixes out-of-memory problem
926    o ECCO-GODAE
927      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
928      * fully merged and updated from SIO code
929        windstress sign change affects
930        - exf_inscal_[u/v]stress
931        - sign of xx_tau[u/v] adjustments
932        - signs in cost_scat
933      * ctrl_get_gen: avoid update of tau[u/v] for first few days
934      * natl_box_adjoint updated and compressed
935      * 2-level checkpoint switch added
936        (tested in EXP. 1 of natl_box_adjoint)
937      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
938    o SVD
939      * first complete, non-hacked version for SVD calculations
940      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
941        performed via direct access files admtlm_vector.it????
942        (via ctrl_[un]pack)
943      * optimcycle is used for ARPACK iteration counter
944        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
945      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
946        and add linear transforms where necessary
947      * controls are initial/final SST, SSS (can be extended; need to check
948        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
949    o mdsio: filename info to both stderr, stdout
950    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
951      from sign change
952    
953    checkpoint55j_post
954    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
955      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
956    o add consistent build directories and .cvsignore files to verification
957    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
958    o make all subroutines 30 or less characters in length for certain older
959      compilers to work (a thorough search only turns up two routines in
960      pkg/ptracers)
961    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
962      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
963    
964    checkpoint55i_post
965    o change arrays for total vertical diffusivity (2.D if explicit,
966      3.D if implicit) ; each ptracer uses its own background value.
967    o added mnc/NetCDF output capability to ocn_compon_interf
968      - added bits to verification/cpl_aim+ocn so that it can run on
969        ITRDA and other clusters without the mpirun "-wd" option
970    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
971      configuration
972    o give MNC the ability to create additional files rather than
973      exceeding a specified file size limit "MNC_MAX_FILESIZE"
974      - the default is just less than 2GB which is a practical limit
975        on many systems
976    o Compute the non-local term using either KPP vertical diffusivity (=default)
977       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
978    
979    checkpoint55h_post
980    o add verification test "vermix"
981    o remove all the *_ioinc flags and replace with the single global
982      outputTypesInclusive flag
983    o allow to set a vertical profile of vertical diffusivity for T & S
984    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
985    o useMNC moved from data.mnc to data.pkg
986    
987    checkpoint55g_post
988    o Renaming carbon AD experiments to comply with testreport conventions
989    o Updating adjoint of Held-Suarez hs94.1x64x5
990    o Fixing directives for non-ECCO forward_step, after ECCO directives
991      have been fixed to avoid recomp. of do_oceanic_phys
992      Works well for global_ocean.90x40x15,
993      but recomp. issue remains for carbon
994    o Updating adjoint output for natl_box_adjoint after
995      pkg/ecco has been modified (see taga c55d_post)
996    
997    checkpoint55f_post
998    o rename to timeave_init_fixed
999    
1000    checkpoint55e_post
1001    o some delicate re-shuffle of store directives to avoid one
1002      extra call of do_oceanic_physics
1003      affects ecco_the_main_loop.F, do_oceanic_physics.F
1004      checkpoint_lev1_directives.h
1005    o NB: this may break global_ocean adjoint temporarily,
1006      but it is clear how to fix it. Will do later, need this now.
1007    
1008    checkpoint55d_post
1009    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1010    o ecco_cost_weights is modified to 1x1 runs
1011    o modifs to allow observations to be read in as
1012      single file or yearly files
1013    o enable to read exf forcing fields as either
1014      single file or yearly files (flag useExfYearlyFields)
1015    checkpoint55d_pre
1016    
1017    o switch between 2-level and 3-level checkpointing
1018    o add ability of MNC to write local and "partial" (eg. 2D slices where
1019      the full 3D field is never actually stored) arrays to NetCDF files
1020      with the correct (that is, the complete multi-dimensional) set of
1021      array indicies
1022      - used in mom_vecinv() to write the diagFreq output
1023      - tested (demonstrated) in verification/aim.5l_cs
1024    o further mnc-ification
1025      - add verification/lab_sea to the list with mnc setups
1026      - fix undefined mnc v-names in cd_code
1027      - add kpp to mnc output (both snapshot and timeave)
1028    o non-hydrostatic code
1029      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1030        in calc_gw.F
1031      - defaults to viscAh
1032      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1033        friction or Leith) in non-hydrostatic mode, as long as there is
1034        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1035    o pkg/cost
1036      extend simple cost functions to treat time mean quantities
1037      (T,U,V) via cost_accumulate_state from cost_tile
1038    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1039        be 2 times larger than the minimum size the advection scheme requires.
1040        now get a perfect conservation of salt in advect_cs test-exp (updated)
1041    o GGL90 (Gaspar's TKE mixed layer)
1042      - add horizontal diffusion of TKE, requires exchanges in
1043        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1044        default. In OPA there is no horizontal diffusion of TKE but the
1045        mixing coefficients are computed from a horizontal average of TKE of
1046        6 points or so. I think that diffusion has a little more physical
1047        justification.
1048      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1049        was in vain)
1050      - mask tke-variable in ggl90_init
1051    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1052    o fix biharmonic diffusion on CS-grid.
1053    o more obcs stuff
1054      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1055        for reading boundary values. This routine is called from
1056        obcs_prescribe_read
1057      - updated obcs_check
1058      - changed sponge layer relaxation parameter units for days to seconds
1059      - turned off sponge layer by default
1060      - changed argument list of OBCS_CALC to myTime+deltaTclock
1061      - fixed about 35 bugs in obcs_external_fields_load
1062    
1063    checkpoint55c_post
1064    o obcs stuff
1065      - new runtime flags useOBCSprescribe, useOBCSbalance
1066      - re-arranged obcs_calc
1067      - moved exf_getobcs to obcs_prescibe_read
1068        obcs_prescibe_read is called after ORLANSKI stuff
1069        and independent of it (executable can contain all).
1070      - updated obcs_check
1071      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1072        These may be necessary only if tangential velocities are
1073        prescribed at OB, not sure, needs testing.
1074    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1075      which simplifies the calls and passes the ifc check-bounds test
1076    
1077    checkpoint55b_post
1078    o add a 2D scalar, Z location, exchange_2 routine.
1079    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1080      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1081      affects advect_cs results (for the wrong reason): update output.txt
1082    o use a more standard discretization for biharmonic viscosity ;
1083     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1084      affects results of dome set-up: update output.txt
1085    o fix gad_advection.F (CubedSphere part), back to version 1.23
1086    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1087    
1088    checkpoint55a_post
1089    o merged code to
1090      * prescribe/read time-dependent open boundaries
1091        (works in conjunction with exf, cal)
1092      * sponge layer code for open boundaries
1093      * each boundary N/S/E/W now has its own CPP option
1094        (healthy for the adjoint)
1095    
1096    checkpoint55
1097    o up-to-date adjoint of previous breaks
1098      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1099      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1100      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1101      - carbon: * remove tr1-related adjoint verification
1102                * add ptracer as control variable
1103    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1104      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1105    
1106    checkpoint54f_post
1107    o in verification/carbin/ remove experiment related to
1108      ALLOW_PASSIVE_TRACER (array tr1 etc)
1109      code_ad/ input_ad/ results_ad
1110    
1111    o add two new packages
1112      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1113        + subject to optimization (memory)
1114      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1115        + subject to reordering (many GOTOs in the original code)
1116        + so far opps is called for every (i,j) point, and then operates in
1117          the vertical; one may want to reorder the scheme in order operate in
1118          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1119          fields)
1120    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1121      - all verification tests compile and run with linux_ia32_g77
1122      - defaults are compatible with current input files--nothing
1123        should change if you were not previously using MNC
1124      - MNC output has been added in numerous places (eg. timeave)
1125        but there are still a few writes not yet do-able with MNC
1126        (this is in progress)
1127      - flags now allow for either/or/both use of MDSIO and MNC and
1128        documentation will soon follow
1129      - numerous small formatting cleanups for ProTeX
1130    o add version info (via BUILD_INFO.h) to MNC and stdout
1131    
1132    checkpoint54e_post
1133    o add two new packages
1134      - pp81 (Packanowski and Philander, 1981), Richardson number and
1135        stratification dependent mixing
1136      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1137      - these scheme operate in a similar manner as KPP (without ghat, of
1138        course), however there is only one diffusivity that is used for both
1139        temperature and salinity (and passive tracers)ç
1140    o add offline package
1141    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1142      provided by Stephanie Dutkiewicz
1143    o genmake2: add ability to search for C compilers and cleanup test output
1144      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1145    
1146    checkpoint54d_post
1147    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1148    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1149      leading to additional shift by 5 days each year of integration
1150       (i.e. leading to considerable offset over the years)
1151    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1152    o start with no AB and no initial filtering (staggerTimeStep):
1153      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1154    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1155      (external loading & cpl import/export stay in forward_step.F)
1156    o update coupling interface to work with new staggerTimeStep
1157    o change MDSIO ptracers_pickup.
1158    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1159    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1160    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1161    
1162    checkpoint54c_post
1163    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1164      this affects (truncation error) output.txt of test-exp:
1165       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1166    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1167    o change Qnet to always be the net heat flux, (+upward).
1168      affects (truncation error) output of natl_box exp.: updated
1169    o define the max number of passive tracers in PTRACERS_SIZE.h
1170    o start to test mnc routinely in exp0
1171    o add sea-ice loading (sIceLoad) as a new forcing field.
1172    
1173    checkpoint54b_post
1174    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1175       impressive on Altix and Opteron systems)
1176    o diagnostics can now write NetCDF files through the mnc package
1177    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1178    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1179    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1180      affects (truncation error) output of lab_sea & natl_box exp.: updated
1181    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1182    
1183    checkpoint54a_post
1184    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1185    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1186    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1187    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1188      + internal_wave (shift in writing cg2d_ini_res)
1189    checkpoint54a_pre
1190    
1191    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1192      - modified verification/lab_sea and natl_box_adjoint accordingly
1193    
1194    checkpoint54
1195    checkpoint53g_post
1196    o prepare splitting of thermodynamics: store convect.counter in common block
1197    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1198      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1199    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1200    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1201    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1202    o restore adjointability
1203    
1204    checkpoint53f_post
1205    o modifications that affect AIM experiment results (update output.txt):
1206      - no advection of S at top interface Nr (pkg/generic_advdiff)
1207      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1208    o AIM pkg:
1209      - include stability function into surf.Flux derivative relative to Tsurf
1210      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1211    
1212    checkpoint53e_post
1213    o merged cylindrical coord configuration
1214    o added rotating_tank experiment
1215    checkpoint53e_pre
1216    
1217    checkpoint53d_post
1218    o faulks upgraded: re-generate output.txt that have changed:
1219       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1220    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1221    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1222    o added Sadourny discretization of Coriolis
1223      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1224      - re-enabled use of omega3 (useAbsVorticity)
1225    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1226      vector-invariant equations
1227      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1228    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1229      hopefully without new bugs
1230      - still to do: biharmonic friction for non-hydrostatic w
1231    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1232    o regenerated output for global_ocean_ebm (using -ieee)
1233    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1234      of mom_common/
1235      - simple re-arrangement of instructions within computing loop
1236    checkpoint53d_pre
1237    
1238    checkpoint53c_post
1239    o new version of coupler for AIM+thSIce and Ocean models
1240     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1241     - land: change Evaporation of snow
1242     - aim with thSIce: fix bug in snow-precip.
1243    o changes to calc_gw.F
1244     - bug fix for w^2 term near the bottom boundary
1245     - (hopefully) improve the lateral slip boundary condtions for use with
1246        partial/looped cells
1247      - because the bug fix changes two verification experiments anyway (exp5
1248        and plume on slope), change the lateral boundary condition from half slip
1249        to the value of no_slip_sides
1250    o ebm package wasnt quite up to the parallel task. Fixed that.
1251    o Adjoint of EBM package + verification
1252      * TLM OK
1253      * ADM not sufficient accuracy yet (needs further testing)
1254    
1255    checkpoint53b_post
1256    o Commiting new energy balance model to repository
1257      * package is pkg/ebm
1258      * verif. is verification/global_ocean_ebm
1259      * references are in ebm_driver.F
1260    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1261    C        Global thermohaline circulation. Part I:
1262    C        Sensitivity to atmospheric moisture transport.
1263    C        J. Climate 12(1), 71-82
1264    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1265    C        Global thermohaline circulation. Part II:
1266    C        Sensitivity with interactive transport.
1267    C        J. Climate 12(1), 83-91
1268    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1269    C        Destabilization of the thermohaline circulation
1270    C        by atmospheric eddy transports.
1271    C        J. Climate 7(12), 1870-1882
1272    o Will need long integration testing.
1273    checkpoint53b_pre
1274    
1275    o created pkg/mom_common in preparation for variable viscosity code
1276    o renamed and split ini_mnc_io
1277    o pkg/land: only liquid water can diffuse or run-off
1278    o AIM using land: soil wetness availability account for snow
1279    o added printMapIncludesZeros to EEPARMS namelist
1280    
1281    checkpoint53a_post
1282    o restore TAMC compatiility for exf_constants.h
1283      (no usage of _d in .h)
1284    o Additional storing in KPP in an attempt to fix
1285      TAMC problem with adjoint of KPP code.
1286      (no success...)
1287      Identical code works fine with TAF.
1288    o Fixed verification/natl_box_adjoint experiments.
1289      Initial conditions for Experiments 4 and 5 are now
1290      set to "SEAICE_initialHEFF=0", which is more reasonable,
1291      and hence gives results closer to that of Experiment 2.
1292      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1293    
1294    checkpoint53
1295    o stable checkpoint with up to date adjoint
1296      TLM tests only run for 1st grdchk at the moment. Its unclear if
1297      this is a code problem or a problem with resetting code for g_
1298      variables that is being autogenerated wrong.
1299      Otherwise:
1300       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1301       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1302         are both still in chaos following their security messes.
1303    
1304    checkpoint52n_post
1305    o various build (mostly genmake2) changes including:
1306      - ability to build/run more easily within Cygwin and MacOS X
1307      - more complicated Makefiles with a stronger dependence on Gnu Make
1308    o pkg/seaice modifications
1309      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1310        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1311        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1312      - changed proxy for geostrophic velocity and updated
1313        verification/lab_sea/results/* accordingly
1314      - removed ADI dynamic solver from pkg/seaice
1315      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1316        they caused a segmentation fault under certain circumstances
1317      - removed unused field WATR
1318    o bug fix in exf-package:
1319      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1320         now reflect that.
1321    o small fixes in the cal-package:
1322      - set reference date to first of January for the 'model'-calendar
1323      - failing of cal_CheckDate in cal_FullDate now actually results in a
1324        warning
1325    o small modifications in exf-package to increase flexibility:
1326      - change climtempfreeze from a constant to a runtime parameter that
1327        is specified in data.exf_clim (default = -1.9)
1328      - introduce runtime parameter windstressmax (default = 2.0) that is
1329        specified in data.exf
1330    o fix in pkg/thsice:
1331      - update Evap (Tsf changes) to be consistent with Latent heat flux
1332      - maintain snow precipitation unchanged (even if Tsf >=0).
1333     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1334    
1335    checkpoint52m_post
1336    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1337      this does not change any of the results, because myIter=0 in swfrac always
1338      lead to jwtype=2 (the default anyway), but the call makes little sense
1339      as a default
1340    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1341    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1342      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1343    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1344    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1345    o extending useSingleCpuIO option to work with new exch2 I/O format
1346      - old-style, missing-tile I/O is still accessible by defining CPP
1347        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1348    o monitor package can write to NetCDF files and/or STDOUT
1349    o fix re-definition bug in MNC_GRID_INIT_ALL()
1350    o doc/api_reference added
1351      - a framework for building an API Reference Manual using all
1352        the "protex" comments embedded in the code
1353      - see pkg/generic_advdiff, pkg/mnc for examples
1354    o MNC:
1355      - make myThid the last argument for all subroutines
1356      - new default for the grid files: NO halos
1357      - add useMNC and other run-time flags
1358      - separate per-file-group handling of the unlimited dimension
1359      - early initialization of MNC w/ flags read at the eeboot stage
1360        and lookup tables set in initialize_fixed
1361      - write all MNC output to a freshly-created directory
1362    o thermodynamics sea-ice (thsice) is now tested with testreport.
1363    o test exp. advect_cs: use the standard cs32 grid ; update output.
1364    o Added functionality to grdchk:
1365      pick global i,j,k position (or nearest wet) where to perform check.
1366    
1367    checkpoint52l_post
1368    o new land formulation:
1369      a) use ground enthalpy as prognostic variable to ensure exact
1370         energy conservation.
1371      b) account for water temperature and for latent heat of freezing
1372         in all processes (rain, run-off, ground storage)
1373      c) compute surface and ground temperature implicitly.
1374    o aim_v23 modification for new land model:
1375      a) Treat separately land / ocean / sea-ice surface fluxes
1376         to allow implicit computation of land & sea-ice surface temp.
1377      b) add snow precipitation.
1378    checkpoint52l_pre
1379    
1380    o fix problem (when 1 tile is empty) in min/max monitor.
1381    o fix bug in timeAve (u,vZetatave in common block)
1382    o no restoring terms under ice for pkg/seaice
1383    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1384    o bug fix for pkg/seaice pickups
1385    o change MNC call locations and add coordinate attributes
1386    o mask vorticity at the corner ; affects global_ocean.cs output
1387    o fix ini_curvilinear_grid ; test CS experiments with mpi
1388    o aim.5l_cs: modify sea-ice fraction input file ; update output
1389    o exf: Adding simple range check routine for exf fields after read
1390    
1391    checkpoint52k_post
1392    o removed top-level directory "diags"
1393      - we migrated these functions to pkg/timeave a long time ago
1394    o fixed bug introduced in pkg/monitor
1395    o accuracy ctrlprec = 32 insuffient for gradient checks using
1396      averaged fields (I/O via cost_averages)
1397      -> use ctrl.h in active_file*.F to control I/O precision.
1398    o paramter list of CALL ADTHE_MAIN_LOOP
1399    o added initial do_the_model_io to ecco
1400    o set all ...Freq to zero after cost_final
1401      taveFreq, dumpFreq, pChkptFreq
1402    o MAIN and ECCO differentiability restored
1403    
1404    checkpoint52j_post
1405    o fix nchklev in tamc.h for global_ocean...
1406    o Bringing flow and store directives up-to-date
1407    o Really weird thing!
1408      call do_the_model_io from the_main_loop with parameters
1409      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1410      TAF places a faulty re-call of initialise_varia
1411      after cost_final call which should not be there!
1412    checkpoint52j_pre
1413    
1414    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1415      error messages
1416    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1417    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1418      debug output
1419    o modfied mdsio_writefield.F to handle non-global files under exch2
1420    o update AIM Cubed-Sphere exp (aim.5l_cs):
1421      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1422    o update AIM Equatorial Channel exp:
1423      use standard aim_v23 pkg and change the SST fields to be more realistic.
1424    o globalFile now works with exch2
1425    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1426      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1427    o limit timeave output for hi-res integrations
1428    
1429    checkpoint52i_post
1430    o removed CPP_EEOPTIONS.h from verification/*/code
1431    o updated the tiling for global_ocean_pressure
1432    checkpoint52i_pre
1433    
1434    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1435      the old pkg/aim).
1436    
1437    checkpoint52h_pre
1438    o shortened offending lines in exch2_send_rx?.template
1439    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1440    o genmake2: add build & execute test for NetCDF code
1441    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1442      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1443    o added useSingleCPUIO flag to monitor.F and mon_out.F
1444    o added temporary hack for sea-ice dynamics on the cube:
1445      metric terms are ignored and it is assumed that
1446      there is no sea-ice on cube faces 1, 2, 4, and 5.
1447    
1448    checkpoint52f_post
1449    o added exch2 cube routines to pkg/exch2
1450    o modified hs94.cs-32x32x5 to use it
1451    o added new grid files to hs94.cs-32x32x5
1452    checkpoint52f_pre
1453    
1454    checkpoint52e_post
1455    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1456      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1457    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1458      to work with implicit vertical advection and AB ;
1459    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1460    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1461     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1462    checkpoint52e_pre
1463    
1464    o fix bug in impldiff when Nr=1 or Nr=2.
1465    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1466    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1467    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1468      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1469    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1470    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1471    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1472    
1473    checkpoint52d_post
1474    o re-tiled many expts to allow comparison in multi-processor mode
1475      - updated output accordingly
1476      - changed hs94.128x64x5 to use intial T from file rather than use the
1477        random number generator
1478    o add infrastructure in model routines for fizhi and gridalt packages
1479    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1480    o changes to permit hi-res, cubed-sphere, configuration
1481      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1482      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1483      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1484        of surface winds for the cube
1485      (A verification experiment, based on global_ocean.cs32x15, but with
1486       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1487       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1488       complete with example surface forcing files and matlab scripts to look
1489       at the output and compare it with that of global_ocean.cs32x15.)
1490    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1491       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1492       to conform to the common rule.
1493    o check-in the first version of the coupler + interfaces for multi-components
1494       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1495       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1496       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1497       - ocean and atmos. share the same horizontal grid (no interpolation).
1498       - exchanges between component and coupler is done in forward_step
1499    o new verification experiment, cpl_aim+ocn:
1500       coupled ocean - AIM atmosphere on cs32 grid.
1501    
1502    checkpoint52d_pre
1503    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1504    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1505    
1506    checkpoint52c_post
1507    o Fixing OPTIONS files for use of exf:
1508      - ALLOW_ECCO not needed
1509      - ECCO_CPPOPTIONS.h should not be included from
1510        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1511        as has been the case in the past
1512      - All cal/exf related options are currently set in
1513        single header file. Should remain so until we
1514        agree on a consistent new policy.
1515    o Removed all CPP options for cal package.
1516      cal has no more CPP options.
1517    o modified STOREs in GAD_ADVECTION
1518    o corrected key comp. for passkey
1519    
1520    checkpoint52b_post
1521    o new version: "thsice" of thermodynamic sea-ice pkg:
1522     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1523     - modify fluxes but do not change theta directly;
1524     - light cleaning of bulk_force pkg (still needed with thsice).
1525     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1526       + output_thsice.txt to test thsice & bulk_force pkgs.
1527    o put back grid & coriolis monitor output.
1528    checkpoint52b_pre
1529    
1530    o call "do_the_model_io" at the beginning (=> dump initial state)
1531    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1532    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1533      (need info on NUMBER_OF_PTRACERS)
1534    o missing PTRACERS headers in some routines
1535    o default tamc.h in pkg/autodiff supposed to crash
1536      to ensure proper customization
1537    
1538    checkpoint52a_post
1539    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1540      - moved surfaceTendencyTice from pkg/seaice to main code
1541      - subroutine FREEZE_SURFACE now limits only surface temperature
1542        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1543        => new output.txt for global_ocean.cs32x15 & global_with_exf
1544      - keep the old version of FREEZE for backward compatibility;
1545        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1546      - corresponding modifs for TAF directives
1547    o added surface flux output variables to TIMEAVE_STATVARS
1548    o time-averaged output for pkg/ptracers
1549    o fix problem with ECCO-related divided adjoint
1550      snapshot file was missing some ad-variables,
1551      but no warning issued by TAF
1552    
1553    checkpoint52a_pre
1554    o some bug fixes for #undef REAL4_IS_SLOW
1555    
1556    checkpoint52 = ecco_c52_e35
1557    o after testing adjoints of checkpoint51u_post
1558    
1559    checkpoint51u_post
1560    o this is the post-merge tag of the ecco-branch
1561      (needs another clean checkout and re-testing)
1562    o various natl_box_adjoint configs and results
1563      but no input fields
1564    o obcs adjoint not yet merged!
1565    o adding ECCO global 1x1 and 2x2 degree configs
1566    o updated/extended some store directives for seaice
1567    o pkg/ecco now containes ecco-specific part of cost function
1568    o top level routines the_main_loop, forward_step
1569      supersede those in model/src/
1570      previous input data.cost now in data.ecco
1571      (new namelist ecco_cost_nml)
1572    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1573    
1574    checkpoint51t_post
1575    o this is the pre-merge tag of the ecco-branch
1576    
1577    checkpoint51s_post
1578    o cleanup: removed various obsolete #define-s
1579    o pkg/grdchk
1580      - renamed 'ph-grd 3' to 'grad-res'
1581      - merged from ecco-branch
1582        (remaining bug fixes for obcs gradient checks)
1583      - additional high-precision output for testreport
1584        (grep for 'precision_grdchk_result')
1585    
1586    checkpoint51r_post
1587    o cleaned up or removed CPP_OPTIONS.h files
1588    o updated results for some of the tests to reflect the new
1589      optfiles (-ieee: -O0 instead of -O3)
1590    
1591    checkpoint51q_post
1592    o cd_code:
1593      - moved cd_scheme.F -> cd_code_scheme.F
1594      - separate read_checkpoint from cd_code_ini_vars.F
1595      - separated cd_code part from write_checkpoint
1596      - updated AD_SOURCE, generated .flow
1597      - added CD_CODE_VARS.h to the_main_loop
1598      - Moving cd_code specific store dir.s to pkg/cd_code
1599    o ctrl package totally restructured
1600      - pack/unpack now optional and decoupled from
1601        xx_/adxx_ I/O
1602      - ctrl_pack/unpack cleaned
1603        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1604      - confined inclusion of AD_CONFIG.h to where necessary.
1605    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1606    
1607    checkpoint51p_post
1608    o create initial cd_code package
1609      - WARNING: the initialization of fields within packages
1610        is broken because INI_FIELDS (where READ_CHECKPOINT is
1611        called) is called *before* PACKAGES_INIT_VARIABLES.
1612        This seems to be backwards since
1613        1) its important to initially zero the entire field including
1614           the "halo" region
1615        2) zeroing needs to be done *before* reading pickup info
1616           and the pickup call might or might not happen in any
1617           particular run
1618      - this needs an overhaul for R2
1619    o cleanup verification/*/code/GMREDI_OPTIONS.h
1620    o cleanup testreport
1621    
1622    checkpoint51o_post
1623    o bringing AD-related verif's up to date with genmake2
1624      - carbon/
1625      - global_ocean.90x40x15/
1626      - hs.94.1x64x5/
1627      - (front_relax/ )
1628    o (more) consistent directory structure for AD-related verif.'s
1629    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1630    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1631    o bug fix in find_alpha.F for MDJWF:
1632      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1633        change rho -> rho-rhoConst
1634      - replace call find_rho to find_rhonum
1635    o initialisation of rFlx extended to full array (required by TAF)
1636      and shifted to thermodynamics
1637    o removed PTRACERS.h in ptracers routine
1638    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1639    o Correcting initialisations for fVerU, fVerV.
1640    o helping TAF to recognize dependency on kUp for
1641      fVerU, fVerV
1642    o Replacing delZ by delR in pkg/ctrl/
1643    checkpoint51o_pre
1644    
1645    o undid all of cp51 pending some cleanups and discussion
1646    o added the [#include "AD_CONFIG.h"] statement to all files that need
1647       it for adjoint/tl #defines
1648     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1649     o removed tools/genmake since it no longer works
1650    
1651    checkpoint51n_post
1652    o modifications to make FREEZE flux visible to pkg/kpp
1653      - moved surfaceTendencyTice from pkg/seaice to main code
1654      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1655      - subroutine FREEZE now limits only surface temperature
1656        (this means new output.txt for global_ocean.90x40x15,
1657         global_ocean.cs32x15, and global_with_exf)
1658    o added surface flux output variables to TIMEAVE_STATVARS
1659    
1660    checkpoint51n_pre
1661    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1662    o added [#include "AD_CONFIG.h"] to all files that use the following
1663      defines:
1664      - ALLOW_ADJOINT_RUN
1665      - ALLOW_TANGENTLINEAR_RUN
1666      - ALLOW_ECCO_OPTIMIZATION
1667    
1668    checkpoint51m_post
1669    o incorporating changes to get TAMC/TAF working in genmake2
1670      - added new TAMC/TAF targets to the Makefile
1671      - various cleanups related to package handling
1672      - these changes should have no impact on the forward model
1673    
1674    checkpoint51l_post
1675    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1676     - faster algorithm for cal_addtime.F
1677     - higher precision arithmetic, where needed
1678     - pkg/exf *startdate variables changed from calendar date to
1679       model integration time
1680    
1681    checkpoint51l_pre
1682    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1683    o enable to apply restoring on S & T only in a latitude band.
1684    o update output (external_forcing_surf modif. change truncation errors)
1685       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1686    
1687    checkpoint51k_post
1688    o change default to: useNHMTerms=.FALSE.
1689     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1690       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1691     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1692        exp1, ideal_2D_oce
1693     - change data file of oceanic exp (leave the results unchanged for now)
1694       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1695    o set gravitySign automatically according to the vertical coordinate used
1696      (and change sign: back to "logical" value: +1 when R increases downward)
1697    o added an include barrier to the default CPP_OPTIONS.h and
1698      removed the #include "PACKAGES_CONFIG.h" from it
1699    o fix a bug in mom_fluxform (from chk51j_post)
1700    
1701    checkpoint51j_post
1702    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1703    o adjusted some flow directives (dynamics, thermodynamics)
1704    o added cubed-sphere case to test cost function
1705    o heckpoint_lev?_directives.h now include
1706      pkg-specific directives, whenever those are enabled.
1707    o Moving pkg-specific flow directives to corresponding pkg
1708      Moving pkg-specific differentiation list to corresponding pkg
1709      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1710      ---> conventions are
1711           - pkg_ad.flow
1712           - pkg_ad_diff.list
1713           - pkg_ad_check_lev?_dir.h
1714    
1715    checkpoint51i_post
1716    o merge of the branch-genmake2
1717      - knowingly breaks the older genmake
1718      - automatic generation of all ALLOW_${PKG_NAME} defines
1719      - new testreport supersedes older testscript
1720    o large number of package inclusion and header cleanups
1721    checkpoint51i_pre
1722    
1723    o new output for adjoin of global ocean vector invariant
1724    o fix for checkpoint of thermodynamic seaice and bulk_force
1725    o Steph gchem various cleanups
1726    
1727    checkpoint 51h_pre
1728    o fixed some single quotes
1729    o modify gchem pkg to be more versatile
1730    o modifications to clean up dic pkg
1731    o add pkg/cfc
1732    
1733    checkpoint51g_post
1734    o provide links for ARPACK and ADM*TLM
1735    o start removing verification/vero/
1736    o update AD-related stuff
1737      (in particular some IF-statements in model/src/ routines)
1738    o adding to verification/global_ocean.90x40x15/ adjoint of
1739      vector invariant setup
1740    
1741    checkpoint51f_post
1742    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1743    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1744      of tracer Green's fucntions for ocean inversion project.
1745    
1746    checkpoint51f_pre
1747    o Added on-the-fly spatial interpolation capability
1748        "USE_EXF_INTERPOLATION" to pkg/exf.
1749      - This is a temporary Cartesian-grid hack until
1750        the super-duper ESMF coupler becomes available.
1751      - See verification/global_with_exf/README for usage example.
1752      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1753        flags and modified pkg/seaice accordingly.
1754    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1755        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1756        non-local transport term.
1757    
1758    checkpoint51e_post
1759    o pkg/mom_vecinv:
1760      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1761      - add time-ave diagnostic of vorticity advection.
1762    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1763    o atmospheric geopotential: - include water vapor effect;
1764                                - use p^kappa in p* scaling.
1765    o land pkg: read initial state from files.
1766    o AIM : add stratospheric drag in the upper level
1767    
1768    checkpoint51d_post
1769    o change function ILNBLNK (=> last non-blank char.) to return zero
1770      (instead of the string length) when the string. char is empty
1771    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1772    o modif's to restore TAMC compatibility
1773      - avoid "_d" constructs in PARAMETER declarations
1774      - avoid interrupting lines by comment lines
1775    o Use cluster local disks for purely local I/O
1776      vs. globally visible disks needed for ctrl stuff
1777      (merged from ecco-branch)
1778      - new active_file_loc... and mdsio_..._loc routines
1779      - affected packages: autodiff, ctrl, grdchk, mdsio
1780    
1781    checkpoint51c_post
1782    o introducing integer flag debugLevel
1783      - debLevZero: suppress all output
1784      - debLevA: standard
1785      - debLevB: equivalent to current debugMode=.TRUE.
1786    o introducing pathname variable mdsioLocalDir for mdsio
1787      that can be specified at runtime
1788      (relevant for cluster I/O to local disk)
1789    `
1790    >>>checkpoint51b_post
1791    adjoint of ptracers
1792    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1793    o extended state in checkpoint_lev?, etc.
1794    o alternative ctrl/cost with tr1 or ptracer
1795    o new comlev1_bibj_ptracers
1796    o new ptracers.flow
1797    o made ptracers_forcing same as external_forcing_s
1798    o added verification for adjoint with ptracers
1799      - adm. grdchk fail so far
1800      - tlm. grdchk OK
1801      - checked tapelev/comlev recomputations: OK
1802    <<<checkpoint51b_pre
1803    
1804    checkpoint51a_post
1805    o added code for biogeochemistry package
1806      - new pkgs: dic, gchem
1807      - new subroutine in ptracers
1808    o modify code for biogeo packages
1809      - in model/src and pkg/ptracers
1810    
1811    checkpoint51
1812    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1813      - autodiff, ctrl, exf, grdchk, seaice
1814      kept separate packages
1815      - cost, ecco, obcs
1816    o updating verification/internal_wave, verification/lab_sea
1817      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1818    
1819    checkpoint50i_post
1820    o Preparing next differentiable checkpoint and sync
1821      of MAIN vs. ecco-branch
1822      - 1st step: this one is differentiable
1823      - 2nd step: next(! not this) checkpoint will have updated packages
1824                  from ecco-branch)
1825    
1826    checkpoint50h_post
1827    o new package "land": provide surface BC for AIM.
1828    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1829    o AIM: use true log-P extrapolation for near surface temp (= as in
1830        F.Molteni paper) ; update aim.5l_cs output.
1831    o New variable in PARM03 for more flexible pickups
1832    o somewhat cleaned package initialisation sequence for
1833      ctrl/ cost/ ecco/ in packages_... routines
1834    
1835    checkpoint50g_post
1836    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1837      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1838      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1839        made the default because of faster convergence than ADI
1840    
1841    checkpoint50f_post
1842    o exf totally restructured
1843      - replaced all exf_set_ routines by one generic exf_set_gen.F
1844        and made sure it's still differentiable
1845      - split exf_getffields.F into new exf_bulkformulae.F
1846      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1847      - updated adjoint/makefile and relevant verif. accordingly
1848    
1849    checkpoint50f_pre
1850     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1851          + change Evap over land. (update aim.5l_cs output)
1852     o added missing .cvsignores and made uniform across expts
1853     o changed configuration of tidal_basin_2d expt
1854     o added pkg/debug functions for tracing code in fatal crashes
1855     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1856     o new fn in pkg/monitor to stop model if solution grows too big
1857     o removed lots of single quotes from comments
1858    
1859    checkpoint50e_post
1860    o make KPP work with PTRACERS
1861     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1862       nearly a copy of kpp_transport_s
1863     - there is no analogue to SurfaceTendencyS, so I have to use
1864       gPtr(of the surface layer) instead
1865    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1866    checkpoint50e_pre
1867    
1868    checkpoint50d_post
1869    o change kpp output from multiple-record state files to single-record state
1870      files analogous to write_state.F
1871    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1872      analogous to the cg2d-related output.
1873    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1874      so that writing to internal file fn (with length 512) fails.
1875    checkpoint50d_pre
1876    
1877    checkpoint50c_post
1878    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1879    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1880    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1881    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1882    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1883    
1884    checkpoint50c_pre
1885    Merging from release1_p13:
1886    o bug fix for pkg/seaice dynamic solver
1887    o Added SEAICE_initialHEFF to pkg/seaice
1888    
1889    checkpoint50b_post
1890    o store u*,v* in gU,V instead of in guNm1,gvNm1
1891    o in order to put the momForcing out of the Adams-Bashforth:
1892      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1893      to timestep.F
1894    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1895    o re-generate output for highly sensitive test-exp:
1896       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1897    
1898    checkpoint50b_pre
1899    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1900    o corrected CPP option mismatch in exf_Bulk... functions for case
1901      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1902    
1903    checkpoint50a_post
1904    o Bug fix for merging between c50 and KPP.
1905      ikey was passed from thermodynamics to kpp_calc via
1906      common block rather than being recomputed in kpp_calc,
1907      in contradiction with new key itdkey.
1908      New key ikppkey created, and tamc.h headers updated.
1909    
1910    checkpoint50
1911    - 2nd step of merge with ecco-branch:
1912      merge changes in ecco-branch back into main trunk
1913    - bug fix in find_alpha
1914    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1915    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1916    - merged some sliced AD support routines
1917    
1918    checkpoint49
1919    merged from ecco-branch:
1920    o exf:
1921      - Enable initialisation of forcing fields to constant
1922        (runtime) values.
1923      - in exf_getffields.F
1924        Reduce i-/j-loop to interior domain, discarding overlaps.
1925        That also fixes wrong TAF-key computations for key_1, key_2
1926        with bulf formulae.
1927      - exf_init.F modify #ifdef for exf_init_evap
1928      - exf_getffieldrec.F, ctrl_getrec.F
1929        The following INT-usages are not safe:
1930          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1931          fldcount = int(fldsecs/fldperiod) + 1
1932        and were modified.
1933    o autodiff: checkpoint_lev...
1934      - updated storing for bulk formulae (some arrays were missing)
1935      - added state for seaice package
1936      - synchronized with main branch
1937    o DIVA:
1938      Modif.s in
1939      - the_main_loop.F
1940      - the_model_main.F
1941      and added cost_final_restore.F cost_final_store.F
1942      o With these changes, it is possible to fully separate
1943        the first forward run to compute the cost function (mdthe_main_loop)
1944        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1945        into separate model executions.
1946        This enables better tuning of DIVA to given queue sizes.
1947      o Loss of cost function value in consecutive DIVA runs is
1948        fixed by storing to 'costfinal' file.
1949      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1950        beginning/end of adjoint integration is accounted for.
1951      The current changes apply to TAF-1.4.26.
1952      TAF has one remaining bug, requiring one manual change
1953      (see MITgcm manual).
1954    o cal: synchronized between MAIN and ecco-branch
1955    
1956    checkpoint48i_post
1957    o Changes to restore differentiability of code w.r.t. previous tag
1958      (mostly adding new routines to make list and replacing
1959      pressure by totPhiHyd).
1960    o Updated and merged grdchk package
1961      - has both ADM and TLM checks
1962      - works for single- and multi-proc.
1963      - output cleaned
1964      - worked successfully for parallel DIVA
1965    o genmake:
1966      - Adding -platform=SP4
1967      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1968    o Modif. for DIVA:
1969      ctrl_unpack should not be called in intermediate DIVA interval.
1970      (similar thing would apply for active files such as
1971      tbar, sbar, psbar, which should not be reinitialised;
1972      only relevant for ecco-branch)
1973    
1974    checkpoint48h_post
1975    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1976    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1977    o Added SEAICE_initialHEFF to pkg/seaice
1978    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1979    
1980    checkpoint48g_post
1981    --- EOS:
1982    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1983      store total Potential in totPhyHyd for diagnostics & EOS.
1984    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1985    --- Pressure/geopotential gradient:
1986    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1987    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1988      ( changes results of global_ocean_pressure )
1989    o NLFS + z-coord.: add eta*Rho' contribution.
1990    o accurate phiHyd when using interface-W at the middle between 2 centers
1991     ( changes results of ideal_2D_oce )
1992    o includes r* 2nd term in potential gradient.
1993    
1994    checkpoint48f_post
1995    Merging from release1_p12:
1996    o Modifications for using pkg/exf with pkg/seaice
1997      - improved description of the various forcing configurations
1998      - added basic radiation bulk formulae to pkg/exf
1999      - units/sign fix for evap computation in exf_getffields.F
2000      - updated verification/global_with_exf/results/output.txt
2001    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2002      (SBO) core products, including oceanic mass, center-of-mass,
2003      angular, and bottom pressure (see pkg/sbo/README.sbo).
2004    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2005      to avoid negative values in shallow regions.
2006      - updated verification/natl_box/results/output.txt
2007      - updated verification/lab_sea/results/output.txt
2008    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2009    o Added useSingleCpuIO option (see PARAMS.h).
2010    o Updated useSingleCpuIO option in mdsio_writefield.F to
2011      work with multi-field files, e.g., for single-file pickup.
2012    o pkg/seaice:
2013      - bug fix in growth.F: QNET for no shortwave case
2014      - added HeffFile for specifying initial sea-ice thickness
2015      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2016    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2017      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2018    o pkg/seaice:
2019      - adjoint-friendly modifications
2020      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2021    
2022    checkpoint48e_post
2023    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2024    o dynamics: change definition of computational domain & adapt mom_fluxform
2025      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2026    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2027        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2028        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2029        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2030        inverted_barometer solid-body.cs-32x32x1
2031      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2032    
2033    checkpoint48d_post
2034    o in preparation for r*:
2035     a) use pre-computed gradient of hydrostatic potential:
2036        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2037     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2038        => affects results of glob_oce_pressure (different truncation error)  
2039      update output.txt of ideal_2D_oce & global_ocean_pressure
2040    
2041    checkpoint48d_pre
2042    o in preparation for r*:
2043      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2044      pass the 2 comp. of the grad. as arguments to momentum S/R.
2045      but for the moment, only used if it does not change the results.
2046    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2047    
2048    checkpoint48c_post
2049    Modifications in treatment of initial flux forcing controls
2050    to avoid extra storing of flux fields.
2051    
2052    checkpoint48c_pre
2053    o Added tidal_basin_2d experiment (currently 1D!)
2054    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2055    
2056    checkpoint48b_post
2057    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2058     (modification to pressure gradient not yet implemented)
2059    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2060      (for U & V) that are used for vertical advection of momentum.
2061    
2062    checkpoint48a_post
2063    o In preparation for r*, use temp. array to compute vertical transport
2064       in flux-form momentum pkg. => change results of few test-exp.
2065      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2066                        lab_sea, natl_box & plume_on_slope
2067    
2068    checkpoint48
2069    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2070    
2071    checkpoint47j_post
2072    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2073    o moved adexch from forward_step to addummy_in_stepping
2074    o added exch in ctrl_map_...
2075    o aveFreq.=0. at end of cost_final to avoid overwrite in
2076      reverse checkpointing loop
2077    o Yet more changes in gmredi:
2078      * adgmredi_calc_tensor
2079        avoiding all recomputation of gmredi_slope_limit
2080      * adgmredi_x/y/rtransport
2081        added flag for excessive storing to avoid recomp. of
2082        u/v/rtans, dTdx/y/z
2083        -> this is not really necessary and very memory-consuming
2084      * adgmredi_slope_psi:
2085        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2086      * gmredi_slope_limit
2087        re-activated full calculation of taperfct for case 'ac02'
2088    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2089    
2090    checkpoint47i_post
2091    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2092    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2093      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2094    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2095    o gmredi: fix few bugs.
2096    
2097    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2098    This will be a good checkpoint to plug into the ecco-branch.
2099    o few modif.'s to get latest version adjointed
2100      (mainly kick out code in ini_linear_phisurf)
2101    o modif's to run adjoint with exactConserv
2102    o case GM_BOLUS_ADVEC should be cleaned
2103      S/R gmredi_slope_psi should be cleaned
2104    o verification/carbon now has exactConserv=.TRUE.
2105    
2106    checkpoint47g_post
2107  o time-average AIM output: becomes independent from statvars time-average  o time-average AIM output: becomes independent from statvars time-average
2108    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2109    o After TAF bug fix:
2110      Tested adjoint of gmredi package.
2111      Tests were done with checkpoint47 rather than with latest
2112      checkpoint47f_post since the latter is broken for the adjoint
2113      verification/carbon/ contains both ADM and TLM gradient checks.
2114    Here they are, before they get changed/lost/stolen.
2115    Mostly modif.'s to fix numerical sensitivities.
2116    Gradient checks OK for
2117    - GM_taper_scheme:
2118      * clipping
2119      * ac02
2120      * linear
2121      * glw91
2122      * dm95
2123      * ldd97
2124    - GMREDI_OPTIONS:
2125      * GM_VISBECK_VARIABLE_K
2126      * GM_NON_UNITY_DIAGONAL
2127      * GM_EXTRA_DIAGONAL
2128      * GM_BOLUS_ADVEC
2129    in conjunction with data.gmredi parameters to be checked in
2130    in a few minutes under verification/carbon/code/
2131    
2132  checkpoint47f_post  checkpoint47f_post
2133  Merging from release1_p10:  Merging from release1_p10:

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