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revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC revision 1.666 by mlosch, Tue Jun 6 16:40:44 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 pkg/ggl90: add parameter (minimum surface kinetic energy)
8    o couple pkg/thsice to pkg/seaice:
9      - modify advection in seaice to accomodate new scalar fields to be advected
10      - only muliDimAdection scheme work with seaice/thsice
11      - mapping of thsice-variables to seaice-variables, back and forth
12      - does not break the verification experiments, but does not give the
13        desired results either
14    o pkg/seaice
15      - make (default) second order advection a bit less confusing?
16    
17    checkpoint58f_post
18    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
19      to pkg/seaice):
20      - new routines thsice_map_exf and thsice_get_exf provide the interface
21      - add an additional formal parameter to thsice_solve4temp
22    o pkg/exf:
23      - add new fields wspeed, snowprecip (to be able to couple to thsice)
24      - correct Stefan-Boltzmann constant
25      - new parameter for longwave surface emittance
26      - separate some stuff from exf_bulkformulae into new routines  
27        exf_radiation, exf_wind
28      - add new parameters and constants: longwave emissivity for ocean, ice
29        and snow, evaporation parameters over ice
30      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
31        either wind from stress or stress from wind
32    o pkg/thSIce:
33    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
34    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
35       and THSICE_CALC_THICKN
36    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
37    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
38      to make debugging easier.
39    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
40    o pkg/bulk_force:
41      - clean-up comments and parameters ;
42      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
43    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
44      generate new output for test-experiment: aim.5l_cs.thSI
45    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
46      testreport accordingly
47    
48    checkpoint58e_post
49    o SEAICE_CGRID adjoint done
50    o R_STAR adjoint implemented.
51      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
52      * need to sort out init. of h0facc, etc.
53    o Make pkg/profile fully independent of ecco,cost, etc. stuff
54      to be able to use it in pure forward.
55    
56    checkpoint58d_post
57    o upgrade simple test-experiment to tutorial example:
58     step.1: duplicate the experiment and (step.2) will remove the old copy.
59      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
60      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
61      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
62      tutorial_global_oce_biogeo    <- copy of dic_example
63      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
64      tutorial_plume_on_slope       <- copy of plume_on_slope
65      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
66      tutorial_global_oce_optim     <- empty for now (David ?)
67      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
68     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
69    o correct a sign problem in cost_scat.F
70    o obcs and ptracers: fix boundary conditions for advections schemes
71      with larger stencil
72    o thsice adjoint: start
73    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
74      completeness
75    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
76      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
77    o ptracers adjoint:
78      * avoid extensive recomputatations
79      * fix missing re-init. of gptr (missed by TAF)
80    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
81      me to turn off the excessive output to STDOUT that this package produces
82    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
83      and add those terms in Vector-Invariant formulation.
84    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
85      if the control period (xx_hfluxperiod etc) is 0
86    o in profiles pkg, clean routines and fix details
87    o in ecco pkg, reading ssh data:
88      fix problem in case the model does not start at iter0=0
89    o fix mnc-pickup/restart for ptracers
90    o new package prifiles:
91      code to compute profile-based cost by Gael Forget
92      (modifs in ecco, ctrl, autodiff)
93    o Benign bug fix in initialization (spotted by M. Mazloff) of
94      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
95    
96    checkpoint58c_post
97    o adjoint: finish NLFS adjoint and provide reference output in
98      verification/global_ocean.90x40x15/results_ad_nlfs
99    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
100      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
101      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
102      with SEAICE_CGRID defined.
103    o move calendarDumps from "data" to "data.cal" and clean-up the code
104      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
105    o add useEXF & useCAL flags (for now, set in hard-coded way)
106    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
107      (were missing in NH mode, and wrong in quasihydrostatic mode).
108      waiting for Chris updated version of calc_gw to add those CALLs.
109    o fix bug in quasihydrostatic S/R ;
110      add a test for this option: global_ocean.90x40x15.qshyd
111    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
112      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
113    o add on/off flag useOffLine for package OFFLINE
114    o seaice:
115      - modify advection so that it works also on the C-grid
116      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
117        problem in multi-tile runs with C-grid
118      - add flags for clipping ice velocities and/or masking solver forcing
119      - fix drag (ocean on ice) formulation and a bug that caused noise in the
120        C-grid solver
121      - added a few comments to seaice_diffusion.F
122      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
123        are now exclusive)
124      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
125        required re-ordering the code a little:
126       + make DAIRN global variable (defined in SEAICE)
127       + move computation of the viscosities eta and zeta into a new separate
128         routine (because I need to recompute them in seaice_ocean_stress.F)
129    
130    checkpoint58b_post
131    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
132      update output.txt of exp. aim.5l_cs.thSI
133    o various mnc cleanups and improvements:
134      + shrink lookup tables by factor of ~4
135      + better error reporting when running out of lookup space
136      + able to handle longer path/file names (up to 500 chars)
137    o adjoint:
138      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
139      - TBD: "hidden" mom_vecinv recomp. in dynamics
140    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
141     (allow to differentiate between forcing components using new integer flags:
142      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
143     and add new flag to put Dissipation tendency out of Adams-Bashforth.
144    o ecco
145      - enable trend removal from SSH anomaly obs.
146    o adjoint
147      - a fix for PmEpR when #undef EXACT_CONSERV
148      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
149      - try to fix "hidden" recomp. in forward_step for NLFS
150        (NLFS seems broken sometimes after I checked it in)
151    o seaice:
152     - add c-grid version of the dynamic solver:
153       + three new routines that are the c-grid substitute lsr, dynsolver
154         and ostres
155       + put a few fields that were local to dynsolver into global common
156         blocks, so that I can move the computation of stresses etc into
157         seaice_lsr (saves coding but may break the adjoint).
158     - replace more hardwired parameters by runtime parameters
159     - add ice masks that mask the rhs of the implicit solvers where there
160       is no ice (commented out in seaice_dynsolver, because i am not sure
161       if this works properly), eventually this should replace the clipping
162       of ice velocities in seaice_dynsolver to +/-40cm/s.
163    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
164      include it only where its needed
165    o move balancing of fluxes before the call of external_forcing_surf
166    o seaice:
167      - correct units of turning angles (now they are really in degrees)
168      - move computation of GWATX/Y out of main routine into dynsolver
169      - initialize GWATX/Y in seaice_init
170    o Apply mask on Fresh-Water flux (needed for SSH forcing).
171      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
172    o seaice: add runtime flags for turning angles (default to zero)
173    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
174      and trend from exf forcing and ctrl control adjustments
175    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
176      (since checkpoint57x_post)
177    o change the default rotation period to 86164.s = the Earth rotation
178    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
179      and based on a reference stratification. Tested within hs94.cs-32x32x5.
180    o seaice advection: add code for choosing between the default (2nd order
181      central differences) and multiDim advection schemes provided by
182      pkg/generic_advdiff
183    o seaice:
184      - removed all references to SEAICE_GRID.h fields from
185        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
186        (cubed-sphere configuration will change a little)
187      - grid computations in seaice_init are obsolete now.
188      - cleaned up code a little so that is easier to read (hopefully).
189      - added new (better?) discretizations of default advection and diffusion
190        (turn on with SEAICEuseFluxForm)
191      - replace 1 in 3d global fields by kSurface in growth.F
192      
193    checkpoint58a_post
194    o seaice:
195      - bug fix in advect.F
196    o shelfice:
197      - separate shelfice load anomaly from pload (breaks with time
198        dependent forcing), => introduce constant field shelficeLoadAnomaly.
199        Its default is 0., but it may be computed more cleverly from (unknown)
200        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
201        done offline. A good approximation of the pressure load anomaly is
202        necessary to avoid large initial adjustment processes underneath
203        deep-reaching shelfice.
204      - small fix in ISOMIP shelfice_thermodynamics
205      - add more sophisticated thermodynamics of Hellmer (1989), this is
206        now the default
207      - give a few constants more intuitive names
208    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
209      if bulk formulae are used in long integration (especially EmPmR). Turn
210      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
211      if balancePrintMean, the imbalance that is substracted is printed to
212      STDOUT.
213    o fix bug (typo) in obcs_apply_eta.F
214    o add a new package shelfice which enables us to model the circulation
215      underneath shelf-ice with draughts of hundreds of meters.
216     - works
217     - to do: + include improved thermodynamics
218              + check whether kSurfC (from model/inc/SURFACE.h) can be used
219                instead of new field kTopC
220              + can we use topoFile, Ro_surf and existing code in ini_depth.F
221                instead of new field R_shelfIce and new code in ini_depth.F
222                and ini_mask_etc.F?
223              + adjust vertical mixing schemes?
224    o seaice pkg:
225     - add a cpp-flag to include a simple formula for a salinity dependent
226       freezing point of sea water at the surface
227     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
228       meridional stresses are now different (and hopefully correct)
229    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
230       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
231       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
232    o pkg/diagnostics: add options and parameters for regional-statistics
233       diagnostics ; define regions by reading a region-mask from a file
234       (might add other options later)
235    o pkg/bulk_force:
236     - add option and parameters to use AIM surface-flux formulae.
237     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
238       others forcing fields (defined in PARM05, parameter file "data") are loaded
239       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
240     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
241     - use the right EXCH call for uwind,vwind (to work on CS-grid).
242     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
243       and parameters (note: calcWindStress replaces .NOT.readwindstress).
244     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
245    
246    checkpoint58
247    o add "--embed-source" option to genmake2 which, when the supporting
248      tools can be compiled (as determined by genmake2) will turn on the
249      embed_files package which then embeds the entire MITgcm source code
250      (*.[fFhc] + Makefile) used for the build within the executable
251      - requested by CNH but off by default
252      - adds a paltry <9MB to the mitgcmuv executable in most cases
253      - only writes the output when useEMBEDSRC in eedata is true
254    o clean up 3-dim. relaxation codes:
255      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
256      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
257      * Thanks to Tom Haine for testing!
258    
259    checkpoint57z_post
260    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
261      affects output (@ truncation level) of exp. plume_on_slope ; updated.
262    o fix the pickup behavior for obcs in combination with ptracers
263    o fix a bug in ptracers_external_fields_load
264    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
265      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
266    o transfered surface NH pressure to eta field (if exactConserv).
267    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
268         and update lab_sea output.txt file.
269    o completing 3-dim. relaxation code: additional term
270         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
271      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
272      * At compile time, in "EXF_OPTIONS.h" set
273          #define  ALLOW_CLIMTEMP_RELAXATION
274          #define  ALLOW_CLIMSALT_RELAXATION
275      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
276          tauThetaClimRelax3Dim = 15552000.0,
277          tauSaltClimRelax3Dim  = 15552000.0,
278      * 3 cases:
279          1) Use a constant-in-time 3-dim. field
280          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
281          3) Real-time relax. to time-evolving prescribed field
282    o Adding Laplacian-type smoothness constraint on
283      initial and boundary (forcing) controls (ic, bc)
284      * enable at compile-time via
285        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
286      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
287      * Absolute scale somewhat unclear so far
288      * no area weighting was included since no other cost term does so far
289    
290    checkpoint57y_post
291    First step for a NLFS adjoint
292    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
293    o new init. routines for calc_r_star, calc_surf_dr
294    o still need to deal with ini_masks_etc
295    o testreport seemed happy
296    checkpoint57y_pre
297    
298    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
299    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
300    o add new offset feature to offline pkg (plus minor cleanup)
301    o cfc fixes for final year of integration
302    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
303      be in GCHEM_OPTIONS).
304    
305    checkpoint57x_post
306    o fix testreport Pb in multiple test experiment.
307    o cleanup our namelist syntax in verification:
308      - make it more F95 standards compliant (some work still needed)
309      - allows the vast majority of our tests to work with gfortran
310    o Non-Hydrostatic:
311     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
312     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
313    o Allow to apply AB on T,S rather than on AB(gT,gS):
314     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
315     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
316       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
317     - need a "clever" read_pickup to restart from the other AB formulation
318    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
319    o remove some unused variables (reduces number of compiler warnings)
320    o adjoint
321      * Disable useVariableViscosity for adjoint for time being
322        (there are a number of extensive recomputations)
323      * Initialize certain variables needed for adjoint
324    
325    checkpoint57w_post
326    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
327                 fix the singleCpuIO RS version of MDSWRITEFIELD
328       and add a WARNING if using globalFiles=T with multi-processors.
329    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
330      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
331    o tracer advection scheme:
332      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
333       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
334       was not very convenient).
335      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
336       (further tests needed for the implicit DST & Flux-Limiter schemes).
337    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
338      and sRef for convenience, handy, when you want to initialize
339      ptracers in a large domain with a constant non-zero value. Also,
340      untangle ptracers_init.F a little.
341    
342    checkpoint57v_post
343    o change dome exp. to use variable viscosity in side-drag terms.
344    o remove all the files from the cfc_offline test since they are now
345      incorporated into tutorial_cfc_offline which has been producing
346      identical results for a few days of testing
347    o add new parameter: sideDragFactor to enable half-slip-side BC
348      and change side-drag S/R to use viscosity from mom_calc_visc
349      (can switch back by setting sideDragFactor=0.); affects results at
350      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
351       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
352    o vorticity & strain are now computed without masking, to account for
353      no-slip-side BC in variable viscosity calculation ; mask is applied
354      anyway later on, before computing advection/coriolis terms.
355    o modify exp4 to test new obcs support for reading from external files
356      and for passive tracers
357    o fix behavior of ptracers_monitor when monitor output is written to a
358      netcdf-file; still not independent of monitor.F (writes in the same
359      file).
360    o change default value of tRef (put a uniform, meaningful value for ocean
361      & atmos) and initialize sRef (was missing, as Martin mentioned).
362    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
363      to be proportional to enstrophy dissipation length.  Thus,
364       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
365      This is now consistent with Smagorinsky and with the manual.
366    
367    checkpoint57u_post
368    o OBCS and PTRACERS: add open boundary support for passive tracers
369      - either use homogenous (pseudo) v.Neumann conditions or prescribe
370        OB-values from file; this is not different from the way theta and salinity
371        are treated
372      - however, Orlanski-radiation conditions are not supported, and the model
373        will stop if you use pTracers and Orlanski at the same time.
374      - beefed up the rountine obcs_external_fields_load: now only those open
375        boundary values are overwritten with values from files for which there
376        are really files, otherwise the OB-fields remain untouched. This makes
377        it possible to use different OBs at different ends of the domain (as
378        with EXF)
379    o reduce number of exch calls in shap_filt (s2).
380    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
381      truncation level) 4/5 MLAdjust test results (11&12 digits match).
382    
383    checkpoint57t_post
384    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
385    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
386      same truncation, independent of the face number: affects affects several
387      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
388    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
389      note that biharmonic viscosity + no-slip was not tested in any experiment.
390    o fix bug in non-linear free-surf side-drag ; generate new output for
391      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
392    o make mnc honor the writeBinaryPrec flag for most kinds of output
393    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
394    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
395      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
396    o add brackets in multi-terms sum to get same truncation, independent of
397      the face number (manage to get exactly same value of gU,gV at the cs-edge)
398      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
399    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
400      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
401      a maximum grid-scale Reynolds number.  Also, changes all length calculations
402      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
403      Suggested values of viscosity parameters found in mom_calc_visc.
404      Many new viscosity diagnostics available.
405    
406    checkpoint57s_post
407    o Add clearing-house for viscosity calculations, mom_calc_visc and
408      correct numerous bugs in LeithD and Smagorinsky discretizations.  
409      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
410      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
411      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
412      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
413      The Strain-Tension form is now called with useStrainTensonVisc=.true.
414      ViscAhStrain and viscAhTension are now retired.
415    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
416    o In response to JMC's bug report, genmake2 now ignores any soft-links
417      that it finds in the *current* directory when searching for files.
418      Soft-links found in any other source directories will still work as
419      they did before.
420    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
421      a C routine to unlimit the stack size
422    o mnc-ify pkg/aim snapshot vars
423    o mnc-ify pkg/land as requested by Daniel
424    o various changes to mnc including:
425      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
426      - output can now be grouped so that all files within a group
427          change the ITER portion of their names in lock-step together
428      - can now read ("global") PER-FACE (in addition to PER-TILE) files
429          and works with both EXCH1 and EXCH2 (but needs more testing)
430      - writing works for all verification test cases w/ g77 on Linux
431    
432    checkpoint57r_post
433    o make MNC variable initialization happen earlier
434    o add diagnostics for (almost) each term of the momentum Eq.
435    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
436    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
437    o remove MINIMAL_TAVE_OUTPUT option ;
438      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
439    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
440      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
441    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
442    o add time-dependent SST, SSS control
443    o cost terms in ecco/ modularized (new cost_generic.F)
444    o cost_averages routines are modularized (new cost_averagesgeneric.F)
445    o new infrastructure for seaice model vs. obs misfits in seaice/
446      * driver from the_main_loop.F is seaice_cost_driver.F
447      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
448      * gradient check in Exp. 6a of natl_box_adjoint/
449    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
450      (see README file)
451    
452    checkpoint57q_post
453    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
454    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
455      - bug was reported by Jean-Michel and Ian Fenty
456    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
457      update exp. cpl_aim+ocn output.
458    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
459      Needed for high-res. runs with large global files
460      to be able to limit tapelev size
461    o Changed some tests for adjoint:
462      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
463      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
464      * global_ocean.90x40x15/ back to default 3-level checkpointing
465    o Modifications to enable scripted COMMON to MODULE conversion
466      * verification/OpenAD/code/ has necessary scripts and description;
467      * converts, compiles and runs successfully;
468    
469    checkpoint57p_post
470    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
471    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
472      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
473    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
474    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
475      (was already the case for dissipation with mom_vecinv,
476       and also the case for grad.PhiHyd when staggered-timeStep)
477      This will allow to put dissipation out-off the AB time-stepping.
478     Unfortunately, affects truncation error. Update output of exp. that "fails"
479      (cg2d matching number) and leave the others for later: front_relax(10),
480      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
481      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
482    
483    checkpoint57o_post
484    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
485      (2) its ready to be documented during the 20050801 DocFest
486    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
487      for ideal_2D_oce and lab_sea on linux_ia32_g77
488    o set to #undef CTRL_SET_OLD_MAXCVARS_30
489      in global1x1_tot/code_seaice_adj to access indices 32, 33
490      (worth another tag)
491    
492    checkpoint57n_post
493    o adding precip control xx_precip 32
494    o adding swflux control xx_swflux 33
495    o Replacing 10 forcing penalty cost routines by 1 generic.
496    o Implementing partitioning in time-mean and variable adjustment
497      for atmos. state.
498    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
499    o in natl_box_adjoint:
500      * updated exp 1 to 10
501        (but does not have time-mean vs. variable split results yet)
502    o updated global1x1/*_seaice_adj/
503      to incorporate latest changes
504    o enable useSingleCpuIO for mdsio vector routines
505      (applies in particular to tapelev I/O)
506    o removed inefficient K-loop in all active_file*control*.F
507    
508    checkpoint57m_post
509    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
510      and advect_cs (use EXCH-2 and standard cs-32 grid files).
511    o pkg/exch2: filling of face-corner halo regions is optional
512      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
513    
514    checkpoint57l_post
515     tag before updating tutorials (pre-release-2)
516    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
517       for output and interpolation of input fields onto model grid)
518    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
519       Affects results of exp. rotating_tank ; update output.txt.
520    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
521          and taking the square quantity and/or using a fraction-weight field.
522    o fix aim_diagnostics_init.F mate numbers.
523    o add mnc output capability to diagnostics/diagstat and update
524      our cvsignore files for the ACSII output generated
525    
526    checkpoint57k_post
527    o lab_sea now uses diagnostics package and provides a suite of
528      new EXF diagnostics output.
529    
530    checkpoint57j_post
531    o exf
532      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
533        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
534        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
535      * extended diagnostics output
536        - now includes all EXF variables
537        - hs, hl moved to common block
538        - separate S/R for diagnostics, called after ctrl vector is added
539        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
540        - EXFqnet contains true Qnet (i.e. includes qsw)
541      * updated verif. lab_sea, global_with_exf
542      * Rearranging hflux (exf_mapfields -> exf_getforcing)
543        to ensure that diagnostics sees a true EXFqnet
544    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
545    o diagnostics pkg: change pointers so that 1 diagnostic can be used
546      several times with different frequencies.
547    o mnc-ify the thsice package as requested by Daniel Enderton
548      - the monitor--MNC output needs work
549      - many attributes need to be added (most are currently blank)
550    o mnc-ify theaim_v23 package as requested by Daniel Enderton
551      - many attributes need to be added (most are currently blank)
552    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
553    o add Sadourny like discretization to the 4th.O vorticity advection scheme
554    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
555      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
556         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
557    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
558     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
559    
560    checkpoint57i_post
561    o Diagnostics package was changed: diagnostic allocation is now deactivated
562      by setting an empty file name in the namelist (used to be by setting 0 frequency)
563    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
564      add 1rst Order upwind vertical Shear.
565    o add a quick fix for A/B checkpointing in OFFLINE mode
566    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
567      end-run around the C/Fortran linking horror in eesup/src/timers.F
568    o added pkg/runclock: allows user to terminate run based on wall clock
569    o added non-hydrostatic scaling parameter: nh_am2
570    o pkg/my82: futile attempt to make results compiler-independent by adding
571      some "_d 0", etc. no effect.
572    o for mnc output, fill the 'T' coordinate var with myTime and create a
573      separate 'iter' variable for iteration count
574    o pkg/diagnostics:
575      add new capability: output of Global/Regional & per-level statistics ;
576      tested against monitor output (including land & thSIce) on various exp.
577    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
578    
579    checkpoint57h_done
580      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
581      data.diagnostics, data.gchem, data.ptracers) is done.
582    
583    o pkg/diagnostics: prepare for Global/Regional statistics.
584      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
585    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
586      and rename it: DIFFERENT_MULTIPLE
587    
588    checkpoint57h_post
589    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
590    o pkg/diagnostics: change output frequency, now in seconds (instead
591      of Nb of iterations). This requires to change data.diagnostics.
592    checkpoint57h_pre
593    
594    o in mnc, let the user create the output dir if both mnc_outdir_date
595      and mnc_outdir_num are false
596    o add fflags() to pkg/diagnostics which allows one to specify, on a
597      per-file basis, the file precision [default behavior is unchanged]
598    o added diagnostics to pkg/kpp, including computation of mixed layer
599      depth based on a temperature/density criterion
600    o updated verification/natl_box to test the new pkg/kpp diagnostics
601    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
602    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
603    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
604      not mnc -- this mistake was found by JMC and is now corrected
605    
606    checkpoint57g_post
607    o add Adams-Bashforth 3rd Order time stepping:
608      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
609      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
610    checkpoint57g_pre
611    
612    o make lambda[Theta,Salt]ClimRelax spatially varying
613      (default remains spatially uniform constant based on tau)
614    o added new control variables
615      * init. uVel, vVel, etanN
616      * lambda[Theta,Salt]ClimRelax
617    o separate masks used for ctrl_pack/unpack 'from write_grid' output
618      (suggested by G. Forget)
619    
620    checkpoint57f_post
621    o add parameter "baseTime" = model base time = time at iteration zero
622      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
623      account for baseTime shift
624    o move Coriolis arrays from PARAMS.h to GRID.h
625    checkpoint57f_pre
626    
627    o mnc-ifying the seaice package
628    o introduced an alternative length scale calculation for use in the limiting
629      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
630    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
631    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
632      as well as grad(vort3).  Made it compatible with both approximate form
633      for the cubed sphere and full form of these gradients.  Added flag
634      useFullLeith to select between approximate and full form.  
635    o add "d0" in getcon.F to reduce differences between compilers/platforms
636      update output.txt of exp. fizhi-gridalt-hs
637    o change port_rand funtion to allow to set the seed.
638    o fix obscure MNC bug involving conversion between reals and integers
639      - it caused no problems with certain (eg. gcc, ifc) compilers but the
640        new version is now more standards-compliant
641    o adjoint-related modifications
642      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
643      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
644      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
645    
646    checkpoint57e_post
647    o Adding eddy stress controls a la Ferreira et al.
648    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
649    
650    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
651      update output.txt of exp. fizhi-gridalt-hs
652    o add more "Z" dimensions and associated coordinate vars to MNC
653    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
654    o parameter calendarDumps: when set, approximate months (30-31 days) and years
655      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
656      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
657      months and years.  Requires pkg/cal.
658    o diagnostics: add pickup functionality
659      - off by default for backwards compatibility
660      - current version only uses MDSIO -- MNC will be added
661    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
662    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
663    
664    checkpoint57d_post
665    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
666    o modify verification/ideal_2D_oce so that it tests the creation of mnc
667      output from the diagnostics package
668    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
669    o make genmake2 more portable by using ".$FS" instead of ".f" for more
670      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
671    o add coordinate variables to the MNC output from the diagnostics package
672    o change MNC-flags default value: true when useMNC=TRUE
673    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
674      the ability (off by default) to read the grid information using MNC
675    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
676    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
677    o do snap-shot diagnostics at the middle of the time-interval (instead of
678      at the end).
679    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
680      new test for AIM with thSIce + slab-ocean
681    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
682    o move state variable diagnostics to the beginning of the time step ;
683      (note: still needs some work specially for snap-shot diagnostics)
684      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
685    
686    checkpoint57c_post
687    o Change testing option (-ieee) to get closer agreement between g77 & ifort
688    o generate new output.txt files on faulks with g77 & the new -ieee option
689    checkpoint57c_pre
690    
691    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
692      update output.txt of exp. global_ocean.90x40x15
693    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
694      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
695    o add saltFlux(+File) forcing capability with periodicExternalForcing
696    o allow to use pkg diagnostics for GM-Redi & ThSIce output
697    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
698    o improvements for the MNC output from DIAGNOSTICS:
699      - correct handling of the unlimitied dimension
700      - all dims now have associated coordinate variables
701      - variables located at U, V, and Corner ("Z") points are now written
702        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
703        *all* data points are output
704    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
705    o added pkg/seaice/seaice_monitor.F
706    o mdsio_readfield.F can now read files visible only to master MPI process.
707    o pkg/seaice: some test code for ice-modified ocean stress
708    o exf_getffields interpolation defaults to bilinear for all scalar forcing
709      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
710      spurious negative numbers for precipitation and humidity.  Will cause
711      some small numerical differences for integrations using pkg/exf/exf_interp.F.
712    o pkg/ctrl/
713      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
714        May be enabled via doPackDiag
715      *  introduce z-scaling of
716         + gradient (doZscalePack) and
717         + control (doZscaleUnpack)
718    o pkg/mdsio/
719      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
720      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
721    
722    checkpoint57b_post
723    o simplify options in diagnostics_fill arguments (remove weird combinations)
724    o fix MNC coordinate variables so that they now contain per-face index
725      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
726      general, EXCH2 grids are only aligned to a "local" coordinate system
727    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
728    o Implement instantaneous output within pkg diagnostics:
729      setting a negative frequency in data.diagnostics produces
730     "snap-shot" output (as opposed to time-average if freq > 0)
731    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
732      NOTE: change ptracer diagnostics name: use 2 characters to work with
733            more than 9 tracers. Add also diagnostics of advect & diffus flux.
734    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
735      becomes the coordinate variable for the 'T' dimension
736    o add CF-style coordinate variables to MNC
737      - just a first cut:  numbers are meaningless on the cubesphere and
738        missing along the T axis but otherwise it works!
739    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
740    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
741    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
742      this is based directly on what the model compute, so that the content of
743      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
744    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
745    o clean up build options files for SunOS, in particular
746      - remove -traditional from xmakedepend
747      - change -xarch=v9 to -xarch=native for f77
748      - restore use of make (not gmake)
749      - add CC=gcc if using g77
750    o changes per discussion of AM, JMC, & EH3 today:
751      - move redundant "grid" variables out of "state" -- in preparation of
752        creating proper CF-style coordinate variables and in recognition
753        that any/all grid variables can be easily copied (eg. w/NCO) from
754        the grid files into any of the other NetCDF files
755      - *always* output grid variables with MDSIO (this will eventually be
756        changed)
757      - output MNC grid file if useMNC is true
758    o every instance of _END_MASTER() has been found and replaced with
759      _END_MASTER( myThid ) in order to satisfy certain picky Sun
760      preprocessors
761    o re-arrange diagnostics pkg initialisation:
762     - allow each package to extend the available diagnostics list
763     - add some checking and fix small problems (multi-threaded, ...)
764     - new S/R diagnostics_fill (replace fill_diagnostics):
765       look through the short list of active diag. (instead of the long list)
766       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
767    
768    checkpoint57a_post
769    o this set of changes restores TAMC compatibility
770      tested for global_ocean.90x40x15 adjoint on trough
771      (what a pain)
772    
773    checkpoint57a_pre
774    o some modifs in tools/build_options for sunos
775    o call ctrl_pack for ctrl at end for optimcycle=0
776    
777    checkpoint57
778    o add horizontal bi-harmonic viscosity for vertical velocity
779      - new parameter viscA4W (defaults to viscA4)
780      - affects only non-hydrostatic code
781      - to be done: no-slip lateral boundary conditions
782    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
783    o implement Implicit Vertical advection for pTracers
784    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
785      (implemented also for implicit vertical diffusion & advection)
786    o OBCS: extend application of tracer open boundary conditions
787      to a strip beyond the boundary of width Olx/Oly
788    o add call monitor to TAF set of required calls (flow directives)
789      and include in natl_box_adjoint
790    o untangle a few ifdefs related to cost, ctrl, autodiff
791      untangel a few ALLOW_ECCO_OPTIMIZATION
792    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
793      (theta2, salt2 in ecco_cost_weights)
794    
795    checkpoint56c_post
796    o OBCS as control variables
797      - update ctrl_ad_diff.list, obcs_ad_diff.list
798      - remove balance of obcs controls from default
799      - fix index bug nobcs in ctrl_init
800      - fix dummy fields filen in ctrl_pack
801      - add dummy weights for obcs
802    o lsopt: comment out fort.94 output
803    o optim:
804      - remove unnecessary header files
805      - adjusted namelists
806      - add xerbla.F to Makefile
807    o exf:
808      - multiple modifications of exf_check_range
809      - unit change in exf_init_runoff from [m/year] to [m/s]
810    o mdsio:
811      - i/o-vector change debugLevel from debLevA to debLevB
812    
813    checkpoint56b_post
814    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
815      is called from DO_THE_MODEL_IO
816      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
817      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
818      - clean up PTRACERS_WRITE_TIMEAVE a little
819    o add another verification experiment that tests both the cfc-pkg and
820      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
821      reactive tendencies treated inline with regular timestepping
822    o testreport previously did a lousy job of comparing small numbers, so
823      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
824      implemented in the little c-progam tmp_cmpnum.c which is embedded in
825      testreport.
826    o ptracers_monitor: bug fix for MPI
827    
828    checkpoint56a_post
829    o GCHEM: finish reorganizating the package
830      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
831        (introduces another 3D-array for each passive tracer, but only if
832        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
833        gchemTendency is not needed because the timestep is done separately)
834      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
835      - GCHEM is now---more or less cleanly---separate from PTRACERS
836      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
837        so clear to me how that should be done in a general way.
838    o CFC: improve formatting of output in CFC_ATMOS
839    o PTRACERS:
840      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
841        that ALL experiments with ptracers enable can be checked. This makes
842        GCHEM_MONITOR obsolete.
843      - include a runtime parameter PTRACERS_monitorFreq that defaults to
844        monitorFreq
845      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
846    o add PTRACERS (PTR0[1-5]) to testreport output
847    o exf_check_range:
848      * default changed to .TRUE.
849      * will check values for niter0 if debLevA, every timestep if debLevB
850      * STOP in exf_check_range if 'out of range'
851      * range chosen generous to allow for potential extema
852      TBD: a version with stricter range
853           permitted range would be runtime parameters
854    o GMredi:
855      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
856      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
857      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
858    o GCHEM:
859      - move call to GCHEM_FORCING_SEP, so that it is now called before
860        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
861      - introduced a useGCHEM runtime flag and applied it everywhere.
862      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
863        this flag is now only visible within GCHEM-pkg routines.
864      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
865        be replaced by a 3D array that is computed before thermodynamics; for
866        this, the tracer ID iTracer had to be included into the parameter list
867        of ptracers_forcing
868      - set up forward_step to call gchem_forcing, that will replace
869        gchem_forcing_int in ptracers_forcing
870      - cleaning up
871    o small cleaning of exch2: remove files that are also in eesupp/src
872    
873    checkpoint56
874    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
875    o mnc: cleanup "full" files--fixes out-of-memory problem
876    o ECCO-GODAE
877      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
878      * fully merged and updated from SIO code
879        windstress sign change affects
880        - exf_inscal_[u/v]stress
881        - sign of xx_tau[u/v] adjustments
882        - signs in cost_scat
883      * ctrl_get_gen: avoid update of tau[u/v] for first few days
884      * natl_box_adjoint updated and compressed
885      * 2-level checkpoint switch added
886        (tested in EXP. 1 of natl_box_adjoint)
887      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
888    o SVD
889      * first complete, non-hacked version for SVD calculations
890      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
891        performed via direct access files admtlm_vector.it????
892        (via ctrl_[un]pack)
893      * optimcycle is used for ARPACK iteration counter
894        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
895      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
896        and add linear transforms where necessary
897      * controls are initial/final SST, SSS (can be extended; need to check
898        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
899    o mdsio: filename info to both stderr, stdout
900    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
901      from sign change
902    
903    checkpoint55j_post
904    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
905      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
906    o add consistent build directories and .cvsignore files to verification
907    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
908    o make all subroutines 30 or less characters in length for certain older
909      compilers to work (a thorough search only turns up two routines in
910      pkg/ptracers)
911    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
912      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
913    
914    checkpoint55i_post
915    o change arrays for total vertical diffusivity (2.D if explicit,
916      3.D if implicit) ; each ptracer uses its own background value.
917    o added mnc/NetCDF output capability to ocn_compon_interf
918      - added bits to verification/cpl_aim+ocn so that it can run on
919        ITRDA and other clusters without the mpirun "-wd" option
920    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
921      configuration
922    o give MNC the ability to create additional files rather than
923      exceeding a specified file size limit "MNC_MAX_FILESIZE"
924      - the default is just less than 2GB which is a practical limit
925        on many systems
926    o Compute the non-local term using either KPP vertical diffusivity (=default)
927       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
928    
929    checkpoint55h_post
930    o add verification test "vermix"
931    o remove all the *_ioinc flags and replace with the single global
932      outputTypesInclusive flag
933    o allow to set a vertical profile of vertical diffusivity for T & S
934    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
935    o useMNC moved from data.mnc to data.pkg
936    
937    checkpoint55g_post
938    o Renaming carbon AD experiments to comply with testreport conventions
939    o Updating adjoint of Held-Suarez hs94.1x64x5
940    o Fixing directives for non-ECCO forward_step, after ECCO directives
941      have been fixed to avoid recomp. of do_oceanic_phys
942      Works well for global_ocean.90x40x15,
943      but recomp. issue remains for carbon
944    o Updating adjoint output for natl_box_adjoint after
945      pkg/ecco has been modified (see taga c55d_post)
946    
947    checkpoint55f_post
948    o rename to timeave_init_fixed
949    
950    checkpoint55e_post
951    o some delicate re-shuffle of store directives to avoid one
952      extra call of do_oceanic_physics
953      affects ecco_the_main_loop.F, do_oceanic_physics.F
954      checkpoint_lev1_directives.h
955    o NB: this may break global_ocean adjoint temporarily,
956      but it is clear how to fix it. Will do later, need this now.
957    
958    checkpoint55d_post
959    o ECCO specific cost function terms (up-to-date with 1x1 runs)
960    o ecco_cost_weights is modified to 1x1 runs
961    o modifs to allow observations to be read in as
962      single file or yearly files
963    o enable to read exf forcing fields as either
964      single file or yearly files (flag useExfYearlyFields)
965    checkpoint55d_pre
966    
967    o switch between 2-level and 3-level checkpointing
968    o add ability of MNC to write local and "partial" (eg. 2D slices where
969      the full 3D field is never actually stored) arrays to NetCDF files
970      with the correct (that is, the complete multi-dimensional) set of
971      array indicies
972      - used in mom_vecinv() to write the diagFreq output
973      - tested (demonstrated) in verification/aim.5l_cs
974    o further mnc-ification
975      - add verification/lab_sea to the list with mnc setups
976      - fix undefined mnc v-names in cd_code
977      - add kpp to mnc output (both snapshot and timeave)
978    o non-hydrostatic code
979      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
980        in calc_gw.F
981      - defaults to viscAh
982      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
983        friction or Leith) in non-hydrostatic mode, as long as there is
984        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
985    o pkg/cost
986      extend simple cost functions to treat time mean quantities
987      (T,U,V) via cost_accumulate_state from cost_tile
988    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
989        be 2 times larger than the minimum size the advection scheme requires.
990        now get a perfect conservation of salt in advect_cs test-exp (updated)
991    o GGL90 (Gaspar's TKE mixed layer)
992      - add horizontal diffusion of TKE, requires exchanges in
993        do_fields_blocking_exchanges, horizontal diffusivity is zero by
994        default. In OPA there is no horizontal diffusion of TKE but the
995        mixing coefficients are computed from a horizontal average of TKE of
996        6 points or so. I think that diffusion has a little more physical
997        justification.
998      - clean up ggl90_calc in the hope of reducing memory usage (this hope
999        was in vain)
1000      - mask tke-variable in ggl90_init
1001    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1002    o fix biharmonic diffusion on CS-grid.
1003    o more obcs stuff
1004      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1005        for reading boundary values. This routine is called from
1006        obcs_prescribe_read
1007      - updated obcs_check
1008      - changed sponge layer relaxation parameter units for days to seconds
1009      - turned off sponge layer by default
1010      - changed argument list of OBCS_CALC to myTime+deltaTclock
1011      - fixed about 35 bugs in obcs_external_fields_load
1012    
1013    checkpoint55c_post
1014    o obcs stuff
1015      - new runtime flags useOBCSprescribe, useOBCSbalance
1016      - re-arranged obcs_calc
1017      - moved exf_getobcs to obcs_prescibe_read
1018        obcs_prescibe_read is called after ORLANSKI stuff
1019        and independent of it (executable can contain all).
1020      - updated obcs_check
1021      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1022        These may be necessary only if tangential velocities are
1023        prescribed at OB, not sure, needs testing.
1024    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1025      which simplifies the calls and passes the ifc check-bounds test
1026    
1027    checkpoint55b_post
1028    o add a 2D scalar, Z location, exchange_2 routine.
1029    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1030      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1031      affects advect_cs results (for the wrong reason): update output.txt
1032    o use a more standard discretization for biharmonic viscosity ;
1033     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1034      affects results of dome set-up: update output.txt
1035    o fix gad_advection.F (CubedSphere part), back to version 1.23
1036    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1037    
1038    checkpoint55a_post
1039    o merged code to
1040      * prescribe/read time-dependent open boundaries
1041        (works in conjunction with exf, cal)
1042      * sponge layer code for open boundaries
1043      * each boundary N/S/E/W now has its own CPP option
1044        (healthy for the adjoint)
1045    
1046    checkpoint55
1047    o up-to-date adjoint of previous breaks
1048      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1049      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1050      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1051      - carbon: * remove tr1-related adjoint verification
1052                * add ptracer as control variable
1053    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1054      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1055    
1056    checkpoint54f_post
1057    o in verification/carbin/ remove experiment related to
1058      ALLOW_PASSIVE_TRACER (array tr1 etc)
1059      code_ad/ input_ad/ results_ad
1060    
1061    o add two new packages
1062      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1063        + subject to optimization (memory)
1064      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1065        + subject to reordering (many GOTOs in the original code)
1066        + so far opps is called for every (i,j) point, and then operates in
1067          the vertical; one may want to reorder the scheme in order operate in
1068          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1069          fields)
1070    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1071      - all verification tests compile and run with linux_ia32_g77
1072      - defaults are compatible with current input files--nothing
1073        should change if you were not previously using MNC
1074      - MNC output has been added in numerous places (eg. timeave)
1075        but there are still a few writes not yet do-able with MNC
1076        (this is in progress)
1077      - flags now allow for either/or/both use of MDSIO and MNC and
1078        documentation will soon follow
1079      - numerous small formatting cleanups for ProTeX
1080    o add version info (via BUILD_INFO.h) to MNC and stdout
1081    
1082    checkpoint54e_post
1083    o add two new packages
1084      - pp81 (Packanowski and Philander, 1981), Richardson number and
1085        stratification dependent mixing
1086      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1087      - these scheme operate in a similar manner as KPP (without ghat, of
1088        course), however there is only one diffusivity that is used for both
1089        temperature and salinity (and passive tracers)ç
1090    o add offline package
1091    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1092      provided by Stephanie Dutkiewicz
1093    o genmake2: add ability to search for C compilers and cleanup test output
1094      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1095    
1096    checkpoint54d_post
1097    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1098    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1099      leading to additional shift by 5 days each year of integration
1100       (i.e. leading to considerable offset over the years)
1101    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1102    o start with no AB and no initial filtering (staggerTimeStep):
1103      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1104    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1105      (external loading & cpl import/export stay in forward_step.F)
1106    o update coupling interface to work with new staggerTimeStep
1107    o change MDSIO ptracers_pickup.
1108    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1109    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1110    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1111    
1112    checkpoint54c_post
1113    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1114      this affects (truncation error) output.txt of test-exp:
1115       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1116    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1117    o change Qnet to always be the net heat flux, (+upward).
1118      affects (truncation error) output of natl_box exp.: updated
1119    o define the max number of passive tracers in PTRACERS_SIZE.h
1120    o start to test mnc routinely in exp0
1121    o add sea-ice loading (sIceLoad) as a new forcing field.
1122    
1123    checkpoint54b_post
1124    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1125       impressive on Altix and Opteron systems)
1126    o diagnostics can now write NetCDF files through the mnc package
1127    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1128    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1129    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1130      affects (truncation error) output of lab_sea & natl_box exp.: updated
1131    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1132    
1133    checkpoint54a_post
1134    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1135    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1136    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1137    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1138      + internal_wave (shift in writing cg2d_ini_res)
1139    checkpoint54a_pre
1140    
1141    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1142      - modified verification/lab_sea and natl_box_adjoint accordingly
1143    
1144    checkpoint54
1145    checkpoint53g_post
1146    o prepare splitting of thermodynamics: store convect.counter in common block
1147    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1148      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1149    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1150    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1151    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1152    o restore adjointability
1153    
1154    checkpoint53f_post
1155    o modifications that affect AIM experiment results (update output.txt):
1156      - no advection of S at top interface Nr (pkg/generic_advdiff)
1157      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1158    o AIM pkg:
1159      - include stability function into surf.Flux derivative relative to Tsurf
1160      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1161    
1162    checkpoint53e_post
1163    o merged cylindrical coord configuration
1164    o added rotating_tank experiment
1165    checkpoint53e_pre
1166    
1167    checkpoint53d_post
1168    o faulks upgraded: re-generate output.txt that have changed:
1169       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1170    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1171    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1172    o added Sadourny discretization of Coriolis
1173      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1174      - re-enabled use of omega3 (useAbsVorticity)
1175    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1176      vector-invariant equations
1177      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1178    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1179      hopefully without new bugs
1180      - still to do: biharmonic friction for non-hydrostatic w
1181    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1182    o regenerated output for global_ocean_ebm (using -ieee)
1183    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1184      of mom_common/
1185      - simple re-arrangement of instructions within computing loop
1186    checkpoint53d_pre
1187    
1188    checkpoint53c_post
1189    o new version of coupler for AIM+thSIce and Ocean models
1190     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1191     - land: change Evaporation of snow
1192     - aim with thSIce: fix bug in snow-precip.
1193    o changes to calc_gw.F
1194     - bug fix for w^2 term near the bottom boundary
1195     - (hopefully) improve the lateral slip boundary condtions for use with
1196        partial/looped cells
1197      - because the bug fix changes two verification experiments anyway (exp5
1198        and plume on slope), change the lateral boundary condition from half slip
1199        to the value of no_slip_sides
1200    o ebm package wasnt quite up to the parallel task. Fixed that.
1201    o Adjoint of EBM package + verification
1202      * TLM OK
1203      * ADM not sufficient accuracy yet (needs further testing)
1204    
1205    checkpoint53b_post
1206    o Commiting new energy balance model to repository
1207      * package is pkg/ebm
1208      * verif. is verification/global_ocean_ebm
1209      * references are in ebm_driver.F
1210    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1211    C        Global thermohaline circulation. Part I:
1212    C        Sensitivity to atmospheric moisture transport.
1213    C        J. Climate 12(1), 71-82
1214    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1215    C        Global thermohaline circulation. Part II:
1216    C        Sensitivity with interactive transport.
1217    C        J. Climate 12(1), 83-91
1218    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1219    C        Destabilization of the thermohaline circulation
1220    C        by atmospheric eddy transports.
1221    C        J. Climate 7(12), 1870-1882
1222    o Will need long integration testing.
1223    checkpoint53b_pre
1224    
1225    o created pkg/mom_common in preparation for variable viscosity code
1226    o renamed and split ini_mnc_io
1227    o pkg/land: only liquid water can diffuse or run-off
1228    o AIM using land: soil wetness availability account for snow
1229    o added printMapIncludesZeros to EEPARMS namelist
1230    
1231    checkpoint53a_post
1232    o restore TAMC compatiility for exf_constants.h
1233      (no usage of _d in .h)
1234    o Additional storing in KPP in an attempt to fix
1235      TAMC problem with adjoint of KPP code.
1236      (no success...)
1237      Identical code works fine with TAF.
1238    o Fixed verification/natl_box_adjoint experiments.
1239      Initial conditions for Experiments 4 and 5 are now
1240      set to "SEAICE_initialHEFF=0", which is more reasonable,
1241      and hence gives results closer to that of Experiment 2.
1242      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1243    
1244    checkpoint53
1245    o stable checkpoint with up to date adjoint
1246      TLM tests only run for 1st grdchk at the moment. Its unclear if
1247      this is a code problem or a problem with resetting code for g_
1248      variables that is being autogenerated wrong.
1249      Otherwise:
1250       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1251       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1252         are both still in chaos following their security messes.
1253    
1254    checkpoint52n_post
1255    o various build (mostly genmake2) changes including:
1256      - ability to build/run more easily within Cygwin and MacOS X
1257      - more complicated Makefiles with a stronger dependence on Gnu Make
1258    o pkg/seaice modifications
1259      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1260        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1261        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1262      - changed proxy for geostrophic velocity and updated
1263        verification/lab_sea/results/* accordingly
1264      - removed ADI dynamic solver from pkg/seaice
1265      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1266        they caused a segmentation fault under certain circumstances
1267      - removed unused field WATR
1268    o bug fix in exf-package:
1269      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1270         now reflect that.
1271    o small fixes in the cal-package:
1272      - set reference date to first of January for the 'model'-calendar
1273      - failing of cal_CheckDate in cal_FullDate now actually results in a
1274        warning
1275    o small modifications in exf-package to increase flexibility:
1276      - change climtempfreeze from a constant to a runtime parameter that
1277        is specified in data.exf_clim (default = -1.9)
1278      - introduce runtime parameter windstressmax (default = 2.0) that is
1279        specified in data.exf
1280    o fix in pkg/thsice:
1281      - update Evap (Tsf changes) to be consistent with Latent heat flux
1282      - maintain snow precipitation unchanged (even if Tsf >=0).
1283     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1284    
1285    checkpoint52m_post
1286    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1287      this does not change any of the results, because myIter=0 in swfrac always
1288      lead to jwtype=2 (the default anyway), but the call makes little sense
1289      as a default
1290    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1291    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1292      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1293    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1294    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1295    o extending useSingleCpuIO option to work with new exch2 I/O format
1296      - old-style, missing-tile I/O is still accessible by defining CPP
1297        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1298    o monitor package can write to NetCDF files and/or STDOUT
1299    o fix re-definition bug in MNC_GRID_INIT_ALL()
1300    o doc/api_reference added
1301      - a framework for building an API Reference Manual using all
1302        the "protex" comments embedded in the code
1303      - see pkg/generic_advdiff, pkg/mnc for examples
1304    o MNC:
1305      - make myThid the last argument for all subroutines
1306      - new default for the grid files: NO halos
1307      - add useMNC and other run-time flags
1308      - separate per-file-group handling of the unlimited dimension
1309      - early initialization of MNC w/ flags read at the eeboot stage
1310        and lookup tables set in initialize_fixed
1311      - write all MNC output to a freshly-created directory
1312    o thermodynamics sea-ice (thsice) is now tested with testreport.
1313    o test exp. advect_cs: use the standard cs32 grid ; update output.
1314    o Added functionality to grdchk:
1315      pick global i,j,k position (or nearest wet) where to perform check.
1316    
1317    checkpoint52l_post
1318    o new land formulation:
1319      a) use ground enthalpy as prognostic variable to ensure exact
1320         energy conservation.
1321      b) account for water temperature and for latent heat of freezing
1322         in all processes (rain, run-off, ground storage)
1323      c) compute surface and ground temperature implicitly.
1324    o aim_v23 modification for new land model:
1325      a) Treat separately land / ocean / sea-ice surface fluxes
1326         to allow implicit computation of land & sea-ice surface temp.
1327      b) add snow precipitation.
1328    checkpoint52l_pre
1329    
1330    o fix problem (when 1 tile is empty) in min/max monitor.
1331    o fix bug in timeAve (u,vZetatave in common block)
1332    o no restoring terms under ice for pkg/seaice
1333    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1334    o bug fix for pkg/seaice pickups
1335    o change MNC call locations and add coordinate attributes
1336    o mask vorticity at the corner ; affects global_ocean.cs output
1337    o fix ini_curvilinear_grid ; test CS experiments with mpi
1338    o aim.5l_cs: modify sea-ice fraction input file ; update output
1339    o exf: Adding simple range check routine for exf fields after read
1340    
1341    checkpoint52k_post
1342    o removed top-level directory "diags"
1343      - we migrated these functions to pkg/timeave a long time ago
1344    o fixed bug introduced in pkg/monitor
1345    o accuracy ctrlprec = 32 insuffient for gradient checks using
1346      averaged fields (I/O via cost_averages)
1347      -> use ctrl.h in active_file*.F to control I/O precision.
1348    o paramter list of CALL ADTHE_MAIN_LOOP
1349    o added initial do_the_model_io to ecco
1350    o set all ...Freq to zero after cost_final
1351      taveFreq, dumpFreq, pChkptFreq
1352    o MAIN and ECCO differentiability restored
1353    
1354    checkpoint52j_post
1355    o fix nchklev in tamc.h for global_ocean...
1356    o Bringing flow and store directives up-to-date
1357    o Really weird thing!
1358      call do_the_model_io from the_main_loop with parameters
1359      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1360      TAF places a faulty re-call of initialise_varia
1361      after cost_final call which should not be there!
1362    checkpoint52j_pre
1363    
1364    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1365      error messages
1366    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1367    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1368      debug output
1369    o modfied mdsio_writefield.F to handle non-global files under exch2
1370    o update AIM Cubed-Sphere exp (aim.5l_cs):
1371      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1372    o update AIM Equatorial Channel exp:
1373      use standard aim_v23 pkg and change the SST fields to be more realistic.
1374    o globalFile now works with exch2
1375    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1376      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1377    o limit timeave output for hi-res integrations
1378    
1379    checkpoint52i_post
1380    o removed CPP_EEOPTIONS.h from verification/*/code
1381    o updated the tiling for global_ocean_pressure
1382    checkpoint52i_pre
1383    
1384    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1385      the old pkg/aim).
1386    
1387    checkpoint52h_pre
1388    o shortened offending lines in exch2_send_rx?.template
1389    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1390    o genmake2: add build & execute test for NetCDF code
1391    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1392      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1393    o added useSingleCPUIO flag to monitor.F and mon_out.F
1394    o added temporary hack for sea-ice dynamics on the cube:
1395      metric terms are ignored and it is assumed that
1396      there is no sea-ice on cube faces 1, 2, 4, and 5.
1397    
1398    checkpoint52f_post
1399    o added exch2 cube routines to pkg/exch2
1400    o modified hs94.cs-32x32x5 to use it
1401    o added new grid files to hs94.cs-32x32x5
1402    checkpoint52f_pre
1403    
1404    checkpoint52e_post
1405    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1406      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1407    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1408      to work with implicit vertical advection and AB ;
1409    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1410    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1411     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1412    checkpoint52e_pre
1413    
1414    o fix bug in impldiff when Nr=1 or Nr=2.
1415    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1416    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1417    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1418      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1419    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1420    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1421    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1422    
1423    checkpoint52d_post
1424    o re-tiled many expts to allow comparison in multi-processor mode
1425      - updated output accordingly
1426      - changed hs94.128x64x5 to use intial T from file rather than use the
1427        random number generator
1428    o add infrastructure in model routines for fizhi and gridalt packages
1429    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1430    o changes to permit hi-res, cubed-sphere, configuration
1431      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1432      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1433      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1434        of surface winds for the cube
1435      (A verification experiment, based on global_ocean.cs32x15, but with
1436       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1437       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1438       complete with example surface forcing files and matlab scripts to look
1439       at the output and compare it with that of global_ocean.cs32x15.)
1440    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1441       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1442       to conform to the common rule.
1443    o check-in the first version of the coupler + interfaces for multi-components
1444       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1445       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1446       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1447       - ocean and atmos. share the same horizontal grid (no interpolation).
1448       - exchanges between component and coupler is done in forward_step
1449    o new verification experiment, cpl_aim+ocn:
1450       coupled ocean - AIM atmosphere on cs32 grid.
1451    
1452    checkpoint52d_pre
1453    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1454    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1455    
1456    checkpoint52c_post
1457    o Fixing OPTIONS files for use of exf:
1458      - ALLOW_ECCO not needed
1459      - ECCO_CPPOPTIONS.h should not be included from
1460        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1461        as has been the case in the past
1462      - All cal/exf related options are currently set in
1463        single header file. Should remain so until we
1464        agree on a consistent new policy.
1465    o Removed all CPP options for cal package.
1466      cal has no more CPP options.
1467    o modified STOREs in GAD_ADVECTION
1468    o corrected key comp. for passkey
1469    
1470    checkpoint52b_post
1471    o new version: "thsice" of thermodynamic sea-ice pkg:
1472     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1473     - modify fluxes but do not change theta directly;
1474     - light cleaning of bulk_force pkg (still needed with thsice).
1475     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1476       + output_thsice.txt to test thsice & bulk_force pkgs.
1477    o put back grid & coriolis monitor output.
1478    checkpoint52b_pre
1479    
1480    o call "do_the_model_io" at the beginning (=> dump initial state)
1481    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1482    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1483      (need info on NUMBER_OF_PTRACERS)
1484    o missing PTRACERS headers in some routines
1485    o default tamc.h in pkg/autodiff supposed to crash
1486      to ensure proper customization
1487    
1488    checkpoint52a_post
1489    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1490      - moved surfaceTendencyTice from pkg/seaice to main code
1491      - subroutine FREEZE_SURFACE now limits only surface temperature
1492        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1493        => new output.txt for global_ocean.cs32x15 & global_with_exf
1494      - keep the old version of FREEZE for backward compatibility;
1495        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1496      - corresponding modifs for TAF directives
1497    o added surface flux output variables to TIMEAVE_STATVARS
1498    o time-averaged output for pkg/ptracers
1499    o fix problem with ECCO-related divided adjoint
1500      snapshot file was missing some ad-variables,
1501      but no warning issued by TAF
1502    
1503    checkpoint52a_pre
1504    o some bug fixes for #undef REAL4_IS_SLOW
1505    
1506    checkpoint52 = ecco_c52_e35
1507    o after testing adjoints of checkpoint51u_post
1508    
1509    checkpoint51u_post
1510    o this is the post-merge tag of the ecco-branch
1511      (needs another clean checkout and re-testing)
1512    o various natl_box_adjoint configs and results
1513      but no input fields
1514    o obcs adjoint not yet merged!
1515    o adding ECCO global 1x1 and 2x2 degree configs
1516    o updated/extended some store directives for seaice
1517    o pkg/ecco now containes ecco-specific part of cost function
1518    o top level routines the_main_loop, forward_step
1519      supersede those in model/src/
1520      previous input data.cost now in data.ecco
1521      (new namelist ecco_cost_nml)
1522    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1523    
1524    checkpoint51t_post
1525    o this is the pre-merge tag of the ecco-branch
1526    
1527    checkpoint51s_post
1528    o cleanup: removed various obsolete #define-s
1529    o pkg/grdchk
1530      - renamed 'ph-grd 3' to 'grad-res'
1531      - merged from ecco-branch
1532        (remaining bug fixes for obcs gradient checks)
1533      - additional high-precision output for testreport
1534        (grep for 'precision_grdchk_result')
1535    
1536    checkpoint51r_post
1537    o cleaned up or removed CPP_OPTIONS.h files
1538    o updated results for some of the tests to reflect the new
1539      optfiles (-ieee: -O0 instead of -O3)
1540    
1541    checkpoint51q_post
1542    o cd_code:
1543      - moved cd_scheme.F -> cd_code_scheme.F
1544      - separate read_checkpoint from cd_code_ini_vars.F
1545      - separated cd_code part from write_checkpoint
1546      - updated AD_SOURCE, generated .flow
1547      - added CD_CODE_VARS.h to the_main_loop
1548      - Moving cd_code specific store dir.s to pkg/cd_code
1549    o ctrl package totally restructured
1550      - pack/unpack now optional and decoupled from
1551        xx_/adxx_ I/O
1552      - ctrl_pack/unpack cleaned
1553        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1554      - confined inclusion of AD_CONFIG.h to where necessary.
1555    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1556    
1557    checkpoint51p_post
1558    o create initial cd_code package
1559      - WARNING: the initialization of fields within packages
1560        is broken because INI_FIELDS (where READ_CHECKPOINT is
1561        called) is called *before* PACKAGES_INIT_VARIABLES.
1562        This seems to be backwards since
1563        1) its important to initially zero the entire field including
1564           the "halo" region
1565        2) zeroing needs to be done *before* reading pickup info
1566           and the pickup call might or might not happen in any
1567           particular run
1568      - this needs an overhaul for R2
1569    o cleanup verification/*/code/GMREDI_OPTIONS.h
1570    o cleanup testreport
1571    
1572    checkpoint51o_post
1573    o bringing AD-related verif's up to date with genmake2
1574      - carbon/
1575      - global_ocean.90x40x15/
1576      - hs.94.1x64x5/
1577      - (front_relax/ )
1578    o (more) consistent directory structure for AD-related verif.'s
1579    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1580    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1581    o bug fix in find_alpha.F for MDJWF:
1582      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1583        change rho -> rho-rhoConst
1584      - replace call find_rho to find_rhonum
1585    o initialisation of rFlx extended to full array (required by TAF)
1586      and shifted to thermodynamics
1587    o removed PTRACERS.h in ptracers routine
1588    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1589    o Correcting initialisations for fVerU, fVerV.
1590    o helping TAF to recognize dependency on kUp for
1591      fVerU, fVerV
1592    o Replacing delZ by delR in pkg/ctrl/
1593    checkpoint51o_pre
1594    
1595    o undid all of cp51 pending some cleanups and discussion
1596    o added the [#include "AD_CONFIG.h"] statement to all files that need
1597       it for adjoint/tl #defines
1598     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1599     o removed tools/genmake since it no longer works
1600    
1601    checkpoint51n_post
1602    o modifications to make FREEZE flux visible to pkg/kpp
1603      - moved surfaceTendencyTice from pkg/seaice to main code
1604      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1605      - subroutine FREEZE now limits only surface temperature
1606        (this means new output.txt for global_ocean.90x40x15,
1607         global_ocean.cs32x15, and global_with_exf)
1608    o added surface flux output variables to TIMEAVE_STATVARS
1609    
1610    checkpoint51n_pre
1611    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1612    o added [#include "AD_CONFIG.h"] to all files that use the following
1613      defines:
1614      - ALLOW_ADJOINT_RUN
1615      - ALLOW_TANGENTLINEAR_RUN
1616      - ALLOW_ECCO_OPTIMIZATION
1617    
1618    checkpoint51m_post
1619  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
1620    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
1621    - various cleanups related to package handling    - various cleanups related to package handling
1622      - these changes should have no impact on the forward model
1623    
1624  checkpoint51l_post  checkpoint51l_post
1625  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations

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