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revision 1.287 by dimitri, Wed May 5 00:23:37 2004 UTC revision 1.640 by mlosch, Fri Mar 24 11:43:19 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 fix mnc-pickup/restart for ptracers
8    o new code to compute profile cost
9      by Gael Forget
10      (modifs in ecco, ctrl, autodiff)
11    
12    checkpoint58c_post
13    o adjoint: finish NLFS adjoint and provide reference output in
14      verification/global_ocean.90x40x15/results_ad_nlfs
15    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
16      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
17      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
18      with SEAICE_CGRID defined.
19    o move calendarDumps from "data" to "data.cal" and clean-up the code
20      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
21    o add useEXF & useCAL flags (for now, set in hard-coded way)
22    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
23      (were missing in NH mode, and wrong in quasihydrostatic mode).
24      waiting for Chris updated version of calc_gw to add those CALLs.
25    o fix bug in quasihydrostatic S/R ;
26      add a test for this option: global_ocean.90x40x15.qshyd
27    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
28      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
29    o add on/off flag useOffLine for package OFFLINE
30    o seaice:
31      - modify advection so that it works also on the C-grid
32      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
33        problem in multi-tile runs with C-grid
34      - add flags for clipping ice velocities and/or masking solver forcing
35      - fix drag (ocean on ice) formulation and a bug that caused noise in the
36        C-grid solver
37      - added a few comments to seaice_diffusion.F
38      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
39        are now exclusive)
40      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
41        required re-ordering the code a little:
42       + make DAIRN global variable (defined in SEAICE)
43       + move computation of the viscosities eta and zeta into a new separate
44         routine (because I need to recompute them in seaice_ocean_stress.F)
45    
46    checkpoint58b_post
47    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
48      update output.txt of exp. aim.5l_cs.thSI
49    o various mnc cleanups and improvements:
50      + shrink lookup tables by factor of ~4
51      + better error reporting when running out of lookup space
52      + able to handle longer path/file names (up to 500 chars)
53    o adjoint:
54      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
55      - TBD: "hidden" mom_vecinv recomp. in dynamics
56    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
57     (allow to differentiate between forcing components using new integer flags:
58      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
59     and add new flag to put Dissipation tendency out of Adams-Bashforth.
60    o ecco
61      - enable trend removal from SSH anomaly obs.
62    o adjoint
63      - a fix for PmEpR when #undef EXACT_CONSERV
64      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
65      - try to fix "hidden" recomp. in forward_step for NLFS
66        (NLFS seems broken sometimes after I checked it in)
67    o seaice:
68     - add c-grid version of the dynamic solver:
69       + three new routines that are the c-grid substitute lsr, dynsolver
70         and ostres
71       + put a few fields that were local to dynsolver into global common
72         blocks, so that I can move the computation of stresses etc into
73         seaice_lsr (saves coding but may break the adjoint).
74     - replace more hardwired parameters by runtime parameters
75     - add ice masks that mask the rhs of the implicit solvers where there
76       is no ice (commented out in seaice_dynsolver, because i am not sure
77       if this works properly), eventually this should replace the clipping
78       of ice velocities in seaice_dynsolver to +/-40cm/s.
79    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
80      include it only where its needed
81    o move balancing of fluxes before the call of external_forcing_surf
82    o seaice:
83      - correct units of turning angles (now they are really in degrees)
84      - move computation of GWATX/Y out of main routine into dynsolver
85      - initialize GWATX/Y in seaice_init
86    o Apply mask on Fresh-Water flux (needed for SSH forcing).
87      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
88    o seaice: add runtime flags for turning angles (default to zero)
89    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
90      and trend from exf forcing and ctrl control adjustments
91    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
92      (since checkpoint57x_post)
93    o change the default rotation period to 86164.s = the Earth rotation
94    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
95      and based on a reference stratification. Tested within hs94.cs-32x32x5.
96    o seaice advection: add code for choosing between the default (2nd order
97      central differences) and multiDim advection schemes provided by
98      pkg/generic_advdiff
99    o seaice:
100      - removed all references to SEAICE_GRID.h fields from
101        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
102        (cubed-sphere configuration will change a little)
103      - grid computations in seaice_init are obsolete now.
104      - cleaned up code a little so that is easier to read (hopefully).
105      - added new (better?) discretizations of default advection and diffusion
106        (turn on with SEAICEuseFluxForm)
107      - replace 1 in 3d global fields by kSurface in growth.F
108      
109    checkpoint58a_post
110    o seaice:
111      - bug fix in advect.F
112    o shelfice:
113      - separate shelfice load anomaly from pload (breaks with time
114        dependent forcing), => introduce constant field shelficeLoadAnomaly.
115        Its default is 0., but it may be computed more cleverly from (unknown)
116        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
117        done offline. A good approximation of the pressure load anomaly is
118        necessary to avoid large initial adjustment processes underneath
119        deep-reaching shelfice.
120      - small fix in ISOMIP shelfice_thermodynamics
121      - add more sophisticated thermodynamics of Hellmer (1989), this is
122        now the default
123      - give a few constants more intuitive names
124    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
125      if bulk formulae are used in long integration (especially EmPmR). Turn
126      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
127      if balancePrintMean, the imbalance that is substracted is printed to
128      STDOUT.
129    o fix bug (typo) in obcs_apply_eta.F
130    o add a new package shelfice which enables us to model the circulation
131      underneath shelf-ice with draughts of hundreds of meters.
132     - works
133     - to do: + include improved thermodynamics
134              + check whether kSurfC (from model/inc/SURFACE.h) can be used
135                instead of new field kTopC
136              + can we use topoFile, Ro_surf and existing code in ini_depth.F
137                instead of new field R_shelfIce and new code in ini_depth.F
138                and ini_mask_etc.F?
139              + adjust vertical mixing schemes?
140    o seaice pkg:
141     - add a cpp-flag to include a simple formula for a salinity dependent
142       freezing point of sea water at the surface
143     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
144       meridional stresses are now different (and hopefully correct)
145    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
146       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
147       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
148    o pkg/diagnostics: add options and parameters for regional-statistics
149       diagnostics ; define regions by reading a region-mask from a file
150       (might add other options later)
151    o pkg/bulk_force:
152     - add option and parameters to use AIM surface-flux formulae.
153     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
154       others forcing fields (defined in PARM05, parameter file "data") are loaded
155       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
156     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
157     - use the right EXCH call for uwind,vwind (to work on CS-grid).
158     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
159       and parameters (note: calcWindStress replaces .NOT.readwindstress).
160     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
161    
162    checkpoint58
163    o add "--embed-source" option to genmake2 which, when the supporting
164      tools can be compiled (as determined by genmake2) will turn on the
165      embed_files package which then embeds the entire MITgcm source code
166      (*.[fFhc] + Makefile) used for the build within the executable
167      - requested by CNH but off by default
168      - adds a paltry <9MB to the mitgcmuv executable in most cases
169      - only writes the output when useEMBEDSRC in eedata is true
170    o clean up 3-dim. relaxation codes:
171      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
172      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
173      * Thanks to Tom Haine for testing!
174    
175    checkpoint57z_post
176    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
177      affects output (@ truncation level) of exp. plume_on_slope ; updated.
178    o fix the pickup behavior for obcs in combination with ptracers
179    o fix a bug in ptracers_external_fields_load
180    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
181      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
182    o transfered surface NH pressure to eta field (if exactConserv).
183    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
184         and update lab_sea output.txt file.
185    o completing 3-dim. relaxation code: additional term
186         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
187      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
188      * At compile time, in "EXF_OPTIONS.h" set
189          #define  ALLOW_CLIMTEMP_RELAXATION
190          #define  ALLOW_CLIMSALT_RELAXATION
191      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
192          tauThetaClimRelax3Dim = 15552000.0,
193          tauSaltClimRelax3Dim  = 15552000.0,
194      * 3 cases:
195          1) Use a constant-in-time 3-dim. field
196          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
197          3) Real-time relax. to time-evolving prescribed field
198    o Adding Laplacian-type smoothness constraint on
199      initial and boundary (forcing) controls (ic, bc)
200      * enable at compile-time via
201        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
202      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
203      * Absolute scale somewhat unclear so far
204      * no area weighting was included since no other cost term does so far
205    
206    checkpoint57y_post
207    First step for a NLFS adjoint
208    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
209    o new init. routines for calc_r_star, calc_surf_dr
210    o still need to deal with ini_masks_etc
211    o testreport seemed happy
212    checkpoint57y_pre
213    
214    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
215    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
216    o add new offset feature to offline pkg (plus minor cleanup)
217    o cfc fixes for final year of integration
218    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
219      be in GCHEM_OPTIONS).
220    
221    checkpoint57x_post
222    o fix testreport Pb in multiple test experiment.
223    o cleanup our namelist syntax in verification:
224      - make it more F95 standards compliant (some work still needed)
225      - allows the vast majority of our tests to work with gfortran
226    o Non-Hydrostatic:
227     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
228     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
229    o Allow to apply AB on T,S rather than on AB(gT,gS):
230     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
231     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
232       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
233     - need a "clever" read_pickup to restart from the other AB formulation
234    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
235    o remove some unused variables (reduces number of compiler warnings)
236    o adjoint
237      * Disable useVariableViscosity for adjoint for time being
238        (there are a number of extensive recomputations)
239      * Initialize certain variables needed for adjoint
240    
241    checkpoint57w_post
242    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
243                 fix the singleCpuIO RS version of MDSWRITEFIELD
244       and add a WARNING if using globalFiles=T with multi-processors.
245    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
246      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
247    o tracer advection scheme:
248      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
249       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
250       was not very convenient).
251      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
252       (further tests needed for the implicit DST & Flux-Limiter schemes).
253    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
254      and sRef for convenience, handy, when you want to initialize
255      ptracers in a large domain with a constant non-zero value. Also,
256      untangle ptracers_init.F a little.
257    
258    checkpoint57v_post
259    o change dome exp. to use variable viscosity in side-drag terms.
260    o remove all the files from the cfc_offline test since they are now
261      incorporated into tutorial_cfc_offline which has been producing
262      identical results for a few days of testing
263    o add new parameter: sideDragFactor to enable half-slip-side BC
264      and change side-drag S/R to use viscosity from mom_calc_visc
265      (can switch back by setting sideDragFactor=0.); affects results at
266      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
267       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
268    o vorticity & strain are now computed without masking, to account for
269      no-slip-side BC in variable viscosity calculation ; mask is applied
270      anyway later on, before computing advection/coriolis terms.
271    o modify exp4 to test new obcs support for reading from external files
272      and for passive tracers
273    o fix behavior of ptracers_monitor when monitor output is written to a
274      netcdf-file; still not independent of monitor.F (writes in the same
275      file).
276    o change default value of tRef (put a uniform, meaningful value for ocean
277      & atmos) and initialize sRef (was missing, as Martin mentioned).
278    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
279      to be proportional to enstrophy dissipation length.  Thus,
280       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
281      This is now consistent with Smagorinsky and with the manual.
282    
283    checkpoint57u_post
284    o OBCS and PTRACERS: add open boundary support for passive tracers
285      - either use homogenous (pseudo) v.Neumann conditions or prescribe
286        OB-values from file; this is not different from the way theta and salinity
287        are treated
288      - however, Orlanski-radiation conditions are not supported, and the model
289        will stop if you use pTracers and Orlanski at the same time.
290      - beefed up the rountine obcs_external_fields_load: now only those open
291        boundary values are overwritten with values from files for which there
292        are really files, otherwise the OB-fields remain untouched. This makes
293        it possible to use different OBs at different ends of the domain (as
294        with EXF)
295    o reduce number of exch calls in shap_filt (s2).
296    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
297      truncation level) 4/5 MLAdjust test results (11&12 digits match).
298    
299    checkpoint57t_post
300    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
301    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
302      same truncation, independent of the face number: affects affects several
303      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
304    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
305      note that biharmonic viscosity + no-slip was not tested in any experiment.
306    o fix bug in non-linear free-surf side-drag ; generate new output for
307      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
308    o make mnc honor the writeBinaryPrec flag for most kinds of output
309    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
310    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
311      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
312    o add brackets in multi-terms sum to get same truncation, independent of
313      the face number (manage to get exactly same value of gU,gV at the cs-edge)
314      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
315    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
316      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
317      a maximum grid-scale Reynolds number.  Also, changes all length calculations
318      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
319      Suggested values of viscosity parameters found in mom_calc_visc.
320      Many new viscosity diagnostics available.
321    
322    checkpoint57s_post
323    o Add clearing-house for viscosity calculations, mom_calc_visc and
324      correct numerous bugs in LeithD and Smagorinsky discretizations.  
325      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
326      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
327      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
328      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
329      The Strain-Tension form is now called with useStrainTensonVisc=.true.
330      ViscAhStrain and viscAhTension are now retired.
331    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
332    o In response to JMC's bug report, genmake2 now ignores any soft-links
333      that it finds in the *current* directory when searching for files.
334      Soft-links found in any other source directories will still work as
335      they did before.
336    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
337      a C routine to unlimit the stack size
338    o mnc-ify pkg/aim snapshot vars
339    o mnc-ify pkg/land as requested by Daniel
340    o various changes to mnc including:
341      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
342      - output can now be grouped so that all files within a group
343          change the ITER portion of their names in lock-step together
344      - can now read ("global") PER-FACE (in addition to PER-TILE) files
345          and works with both EXCH1 and EXCH2 (but needs more testing)
346      - writing works for all verification test cases w/ g77 on Linux
347    
348    checkpoint57r_post
349    o make MNC variable initialization happen earlier
350    o add diagnostics for (almost) each term of the momentum Eq.
351    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
352    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
353    o remove MINIMAL_TAVE_OUTPUT option ;
354      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
355    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
356      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
357    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
358    o add time-dependent SST, SSS control
359    o cost terms in ecco/ modularized (new cost_generic.F)
360    o cost_averages routines are modularized (new cost_averagesgeneric.F)
361    o new infrastructure for seaice model vs. obs misfits in seaice/
362      * driver from the_main_loop.F is seaice_cost_driver.F
363      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
364      * gradient check in Exp. 6a of natl_box_adjoint/
365    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
366      (see README file)
367    
368    checkpoint57q_post
369    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
370    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
371      - bug was reported by Jean-Michel and Ian Fenty
372    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
373      update exp. cpl_aim+ocn output.
374    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
375      Needed for high-res. runs with large global files
376      to be able to limit tapelev size
377    o Changed some tests for adjoint:
378      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
379      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
380      * global_ocean.90x40x15/ back to default 3-level checkpointing
381    o Modifications to enable scripted COMMON to MODULE conversion
382      * verification/OpenAD/code/ has necessary scripts and description;
383      * converts, compiles and runs successfully;
384    
385    checkpoint57p_post
386    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
387    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
388      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
389    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
390    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
391      (was already the case for dissipation with mom_vecinv,
392       and also the case for grad.PhiHyd when staggered-timeStep)
393      This will allow to put dissipation out-off the AB time-stepping.
394     Unfortunately, affects truncation error. Update output of exp. that "fails"
395      (cg2d matching number) and leave the others for later: front_relax(10),
396      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
397      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
398    
399    checkpoint57o_post
400    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
401      (2) its ready to be documented during the 20050801 DocFest
402    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
403      for ideal_2D_oce and lab_sea on linux_ia32_g77
404    o set to #undef CTRL_SET_OLD_MAXCVARS_30
405      in global1x1_tot/code_seaice_adj to access indices 32, 33
406      (worth another tag)
407    
408    checkpoint57n_post
409    o adding precip control xx_precip 32
410    o adding swflux control xx_swflux 33
411    o Replacing 10 forcing penalty cost routines by 1 generic.
412    o Implementing partitioning in time-mean and variable adjustment
413      for atmos. state.
414    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
415    o in natl_box_adjoint:
416      * updated exp 1 to 10
417        (but does not have time-mean vs. variable split results yet)
418    o updated global1x1/*_seaice_adj/
419      to incorporate latest changes
420    o enable useSingleCpuIO for mdsio vector routines
421      (applies in particular to tapelev I/O)
422    o removed inefficient K-loop in all active_file*control*.F
423    
424    checkpoint57m_post
425    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
426      and advect_cs (use EXCH-2 and standard cs-32 grid files).
427    o pkg/exch2: filling of face-corner halo regions is optional
428      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
429    
430    checkpoint57l_post
431     tag before updating tutorials (pre-release-2)
432    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
433       for output and interpolation of input fields onto model grid)
434    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
435       Affects results of exp. rotating_tank ; update output.txt.
436    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
437          and taking the square quantity and/or using a fraction-weight field.
438    o fix aim_diagnostics_init.F mate numbers.
439    o add mnc output capability to diagnostics/diagstat and update
440      our cvsignore files for the ACSII output generated
441    
442    checkpoint57k_post
443    o lab_sea now uses diagnostics package and provides a suite of
444      new EXF diagnostics output.
445    
446    checkpoint57j_post
447    o exf
448      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
449        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
450        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
451      * extended diagnostics output
452        - now includes all EXF variables
453        - hs, hl moved to common block
454        - separate S/R for diagnostics, called after ctrl vector is added
455        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
456        - EXFqnet contains true Qnet (i.e. includes qsw)
457      * updated verif. lab_sea, global_with_exf
458      * Rearranging hflux (exf_mapfields -> exf_getforcing)
459        to ensure that diagnostics sees a true EXFqnet
460    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
461    o diagnostics pkg: change pointers so that 1 diagnostic can be used
462      several times with different frequencies.
463    o mnc-ify the thsice package as requested by Daniel Enderton
464      - the monitor--MNC output needs work
465      - many attributes need to be added (most are currently blank)
466    o mnc-ify theaim_v23 package as requested by Daniel Enderton
467      - many attributes need to be added (most are currently blank)
468    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
469    o add Sadourny like discretization to the 4th.O vorticity advection scheme
470    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
471      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
472         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
473    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
474     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
475    
476    checkpoint57i_post
477    o Diagnostics package was changed: diagnostic allocation is now deactivated
478      by setting an empty file name in the namelist (used to be by setting 0 frequency)
479    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
480      add 1rst Order upwind vertical Shear.
481    o add a quick fix for A/B checkpointing in OFFLINE mode
482    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
483      end-run around the C/Fortran linking horror in eesup/src/timers.F
484    o added pkg/runclock: allows user to terminate run based on wall clock
485    o added non-hydrostatic scaling parameter: nh_am2
486    o pkg/my82: futile attempt to make results compiler-independent by adding
487      some "_d 0", etc. no effect.
488    o for mnc output, fill the 'T' coordinate var with myTime and create a
489      separate 'iter' variable for iteration count
490    o pkg/diagnostics:
491      add new capability: output of Global/Regional & per-level statistics ;
492      tested against monitor output (including land & thSIce) on various exp.
493    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
494    
495    checkpoint57h_done
496      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
497      data.diagnostics, data.gchem, data.ptracers) is done.
498    
499    o pkg/diagnostics: prepare for Global/Regional statistics.
500      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
501    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
502      and rename it: DIFFERENT_MULTIPLE
503    
504    checkpoint57h_post
505    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
506    o pkg/diagnostics: change output frequency, now in seconds (instead
507      of Nb of iterations). This requires to change data.diagnostics.
508    checkpoint57h_pre
509    
510    o in mnc, let the user create the output dir if both mnc_outdir_date
511      and mnc_outdir_num are false
512    o add fflags() to pkg/diagnostics which allows one to specify, on a
513      per-file basis, the file precision [default behavior is unchanged]
514    o added diagnostics to pkg/kpp, including computation of mixed layer
515      depth based on a temperature/density criterion
516    o updated verification/natl_box to test the new pkg/kpp diagnostics
517    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
518    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
519    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
520      not mnc -- this mistake was found by JMC and is now corrected
521    
522    checkpoint57g_post
523    o add Adams-Bashforth 3rd Order time stepping:
524      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
525      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
526    checkpoint57g_pre
527    
528    o make lambda[Theta,Salt]ClimRelax spatially varying
529      (default remains spatially uniform constant based on tau)
530    o added new control variables
531      * init. uVel, vVel, etanN
532      * lambda[Theta,Salt]ClimRelax
533    o separate masks used for ctrl_pack/unpack 'from write_grid' output
534      (suggested by G. Forget)
535    
536    checkpoint57f_post
537    o add parameter "baseTime" = model base time = time at iteration zero
538      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
539      account for baseTime shift
540    o move Coriolis arrays from PARAMS.h to GRID.h
541    checkpoint57f_pre
542    
543    o mnc-ifying the seaice package
544    o introduced an alternative length scale calculation for use in the limiting
545      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
546    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
547    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
548      as well as grad(vort3).  Made it compatible with both approximate form
549      for the cubed sphere and full form of these gradients.  Added flag
550      useFullLeith to select between approximate and full form.  
551    o add "d0" in getcon.F to reduce differences between compilers/platforms
552      update output.txt of exp. fizhi-gridalt-hs
553    o change port_rand funtion to allow to set the seed.
554    o fix obscure MNC bug involving conversion between reals and integers
555      - it caused no problems with certain (eg. gcc, ifc) compilers but the
556        new version is now more standards-compliant
557    o adjoint-related modifications
558      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
559      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
560      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
561    
562    checkpoint57e_post
563    o Adding eddy stress controls a la Ferreira et al.
564    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
565    
566    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
567      update output.txt of exp. fizhi-gridalt-hs
568    o add more "Z" dimensions and associated coordinate vars to MNC
569    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
570    o parameter calendarDumps: when set, approximate months (30-31 days) and years
571      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
572      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
573      months and years.  Requires pkg/cal.
574    o diagnostics: add pickup functionality
575      - off by default for backwards compatibility
576      - current version only uses MDSIO -- MNC will be added
577    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
578    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
579    
580    checkpoint57d_post
581    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
582    o modify verification/ideal_2D_oce so that it tests the creation of mnc
583      output from the diagnostics package
584    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
585    o make genmake2 more portable by using ".$FS" instead of ".f" for more
586      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
587    o add coordinate variables to the MNC output from the diagnostics package
588    o change MNC-flags default value: true when useMNC=TRUE
589    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
590      the ability (off by default) to read the grid information using MNC
591    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
592    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
593    o do snap-shot diagnostics at the middle of the time-interval (instead of
594      at the end).
595    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
596      new test for AIM with thSIce + slab-ocean
597    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
598    o move state variable diagnostics to the beginning of the time step ;
599      (note: still needs some work specially for snap-shot diagnostics)
600      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
601    
602    checkpoint57c_post
603    o Change testing option (-ieee) to get closer agreement between g77 & ifort
604    o generate new output.txt files on faulks with g77 & the new -ieee option
605    checkpoint57c_pre
606    
607    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
608      update output.txt of exp. global_ocean.90x40x15
609    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
610      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
611    o add saltFlux(+File) forcing capability with periodicExternalForcing
612    o allow to use pkg diagnostics for GM-Redi & ThSIce output
613    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
614    o improvements for the MNC output from DIAGNOSTICS:
615      - correct handling of the unlimitied dimension
616      - all dims now have associated coordinate variables
617      - variables located at U, V, and Corner ("Z") points are now written
618        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
619        *all* data points are output
620    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
621    o added pkg/seaice/seaice_monitor.F
622    o mdsio_readfield.F can now read files visible only to master MPI process.
623    o pkg/seaice: some test code for ice-modified ocean stress
624    o exf_getffields interpolation defaults to bilinear for all scalar forcing
625      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
626      spurious negative numbers for precipitation and humidity.  Will cause
627      some small numerical differences for integrations using pkg/exf/exf_interp.F.
628    o pkg/ctrl/
629      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
630        May be enabled via doPackDiag
631      *  introduce z-scaling of
632         + gradient (doZscalePack) and
633         + control (doZscaleUnpack)
634    o pkg/mdsio/
635      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
636      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
637    
638    checkpoint57b_post
639    o simplify options in diagnostics_fill arguments (remove weird combinations)
640    o fix MNC coordinate variables so that they now contain per-face index
641      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
642      general, EXCH2 grids are only aligned to a "local" coordinate system
643    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
644    o Implement instantaneous output within pkg diagnostics:
645      setting a negative frequency in data.diagnostics produces
646     "snap-shot" output (as opposed to time-average if freq > 0)
647    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
648      NOTE: change ptracer diagnostics name: use 2 characters to work with
649            more than 9 tracers. Add also diagnostics of advect & diffus flux.
650    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
651      becomes the coordinate variable for the 'T' dimension
652    o add CF-style coordinate variables to MNC
653      - just a first cut:  numbers are meaningless on the cubesphere and
654        missing along the T axis but otherwise it works!
655    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
656    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
657    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
658      this is based directly on what the model compute, so that the content of
659      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
660    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
661    o clean up build options files for SunOS, in particular
662      - remove -traditional from xmakedepend
663      - change -xarch=v9 to -xarch=native for f77
664      - restore use of make (not gmake)
665      - add CC=gcc if using g77
666    o changes per discussion of AM, JMC, & EH3 today:
667      - move redundant "grid" variables out of "state" -- in preparation of
668        creating proper CF-style coordinate variables and in recognition
669        that any/all grid variables can be easily copied (eg. w/NCO) from
670        the grid files into any of the other NetCDF files
671      - *always* output grid variables with MDSIO (this will eventually be
672        changed)
673      - output MNC grid file if useMNC is true
674    o every instance of _END_MASTER() has been found and replaced with
675      _END_MASTER( myThid ) in order to satisfy certain picky Sun
676      preprocessors
677    o re-arrange diagnostics pkg initialisation:
678     - allow each package to extend the available diagnostics list
679     - add some checking and fix small problems (multi-threaded, ...)
680     - new S/R diagnostics_fill (replace fill_diagnostics):
681       look through the short list of active diag. (instead of the long list)
682       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
683    
684    checkpoint57a_post
685    o this set of changes restores TAMC compatibility
686      tested for global_ocean.90x40x15 adjoint on trough
687      (what a pain)
688    
689    checkpoint57a_pre
690    o some modifs in tools/build_options for sunos
691    o call ctrl_pack for ctrl at end for optimcycle=0
692    
693    checkpoint57
694    o add horizontal bi-harmonic viscosity for vertical velocity
695      - new parameter viscA4W (defaults to viscA4)
696      - affects only non-hydrostatic code
697      - to be done: no-slip lateral boundary conditions
698    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
699    o implement Implicit Vertical advection for pTracers
700    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
701      (implemented also for implicit vertical diffusion & advection)
702    o OBCS: extend application of tracer open boundary conditions
703      to a strip beyond the boundary of width Olx/Oly
704    o add call monitor to TAF set of required calls (flow directives)
705      and include in natl_box_adjoint
706    o untangle a few ifdefs related to cost, ctrl, autodiff
707      untangel a few ALLOW_ECCO_OPTIMIZATION
708    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
709      (theta2, salt2 in ecco_cost_weights)
710    
711    checkpoint56c_post
712    o OBCS as control variables
713      - update ctrl_ad_diff.list, obcs_ad_diff.list
714      - remove balance of obcs controls from default
715      - fix index bug nobcs in ctrl_init
716      - fix dummy fields filen in ctrl_pack
717      - add dummy weights for obcs
718    o lsopt: comment out fort.94 output
719    o optim:
720      - remove unnecessary header files
721      - adjusted namelists
722      - add xerbla.F to Makefile
723    o exf:
724      - multiple modifications of exf_check_range
725      - unit change in exf_init_runoff from [m/year] to [m/s]
726    o mdsio:
727      - i/o-vector change debugLevel from debLevA to debLevB
728    
729    checkpoint56b_post
730    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
731      is called from DO_THE_MODEL_IO
732      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
733      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
734      - clean up PTRACERS_WRITE_TIMEAVE a little
735    o add another verification experiment that tests both the cfc-pkg and
736      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
737      reactive tendencies treated inline with regular timestepping
738    o testreport previously did a lousy job of comparing small numbers, so
739      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
740      implemented in the little c-progam tmp_cmpnum.c which is embedded in
741      testreport.
742    o ptracers_monitor: bug fix for MPI
743    
744    checkpoint56a_post
745    o GCHEM: finish reorganizating the package
746      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
747        (introduces another 3D-array for each passive tracer, but only if
748        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
749        gchemTendency is not needed because the timestep is done separately)
750      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
751      - GCHEM is now---more or less cleanly---separate from PTRACERS
752      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
753        so clear to me how that should be done in a general way.
754    o CFC: improve formatting of output in CFC_ATMOS
755    o PTRACERS:
756      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
757        that ALL experiments with ptracers enable can be checked. This makes
758        GCHEM_MONITOR obsolete.
759      - include a runtime parameter PTRACERS_monitorFreq that defaults to
760        monitorFreq
761      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
762    o add PTRACERS (PTR0[1-5]) to testreport output
763    o exf_check_range:
764      * default changed to .TRUE.
765      * will check values for niter0 if debLevA, every timestep if debLevB
766      * STOP in exf_check_range if 'out of range'
767      * range chosen generous to allow for potential extema
768      TBD: a version with stricter range
769           permitted range would be runtime parameters
770    o GMredi:
771      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
772      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
773      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
774    o GCHEM:
775      - move call to GCHEM_FORCING_SEP, so that it is now called before
776        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
777      - introduced a useGCHEM runtime flag and applied it everywhere.
778      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
779        this flag is now only visible within GCHEM-pkg routines.
780      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
781        be replaced by a 3D array that is computed before thermodynamics; for
782        this, the tracer ID iTracer had to be included into the parameter list
783        of ptracers_forcing
784      - set up forward_step to call gchem_forcing, that will replace
785        gchem_forcing_int in ptracers_forcing
786      - cleaning up
787    o small cleaning of exch2: remove files that are also in eesupp/src
788    
789    checkpoint56
790    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
791    o mnc: cleanup "full" files--fixes out-of-memory problem
792    o ECCO-GODAE
793      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
794      * fully merged and updated from SIO code
795        windstress sign change affects
796        - exf_inscal_[u/v]stress
797        - sign of xx_tau[u/v] adjustments
798        - signs in cost_scat
799      * ctrl_get_gen: avoid update of tau[u/v] for first few days
800      * natl_box_adjoint updated and compressed
801      * 2-level checkpoint switch added
802        (tested in EXP. 1 of natl_box_adjoint)
803      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
804    o SVD
805      * first complete, non-hacked version for SVD calculations
806      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
807        performed via direct access files admtlm_vector.it????
808        (via ctrl_[un]pack)
809      * optimcycle is used for ARPACK iteration counter
810        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
811      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
812        and add linear transforms where necessary
813      * controls are initial/final SST, SSS (can be extended; need to check
814        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
815    o mdsio: filename info to both stderr, stdout
816    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
817      from sign change
818    
819    checkpoint55j_post
820    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
821      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
822    o add consistent build directories and .cvsignore files to verification
823    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
824    o make all subroutines 30 or less characters in length for certain older
825      compilers to work (a thorough search only turns up two routines in
826      pkg/ptracers)
827    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
828      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
829    
830    checkpoint55i_post
831    o change arrays for total vertical diffusivity (2.D if explicit,
832      3.D if implicit) ; each ptracer uses its own background value.
833    o added mnc/NetCDF output capability to ocn_compon_interf
834      - added bits to verification/cpl_aim+ocn so that it can run on
835        ITRDA and other clusters without the mpirun "-wd" option
836    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
837      configuration
838    o give MNC the ability to create additional files rather than
839      exceeding a specified file size limit "MNC_MAX_FILESIZE"
840      - the default is just less than 2GB which is a practical limit
841        on many systems
842    o Compute the non-local term using either KPP vertical diffusivity (=default)
843       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
844    
845    checkpoint55h_post
846    o add verification test "vermix"
847    o remove all the *_ioinc flags and replace with the single global
848      outputTypesInclusive flag
849    o allow to set a vertical profile of vertical diffusivity for T & S
850    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
851    o useMNC moved from data.mnc to data.pkg
852    
853    checkpoint55g_post
854    o Renaming carbon AD experiments to comply with testreport conventions
855    o Updating adjoint of Held-Suarez hs94.1x64x5
856    o Fixing directives for non-ECCO forward_step, after ECCO directives
857      have been fixed to avoid recomp. of do_oceanic_phys
858      Works well for global_ocean.90x40x15,
859      but recomp. issue remains for carbon
860    o Updating adjoint output for natl_box_adjoint after
861      pkg/ecco has been modified (see taga c55d_post)
862    
863    checkpoint55f_post
864    o rename to timeave_init_fixed
865    
866    checkpoint55e_post
867    o some delicate re-shuffle of store directives to avoid one
868      extra call of do_oceanic_physics
869      affects ecco_the_main_loop.F, do_oceanic_physics.F
870      checkpoint_lev1_directives.h
871    o NB: this may break global_ocean adjoint temporarily,
872      but it is clear how to fix it. Will do later, need this now.
873    
874    checkpoint55d_post
875    o ECCO specific cost function terms (up-to-date with 1x1 runs)
876    o ecco_cost_weights is modified to 1x1 runs
877    o modifs to allow observations to be read in as
878      single file or yearly files
879    o enable to read exf forcing fields as either
880      single file or yearly files (flag useExfYearlyFields)
881    checkpoint55d_pre
882    
883    o switch between 2-level and 3-level checkpointing
884    o add ability of MNC to write local and "partial" (eg. 2D slices where
885      the full 3D field is never actually stored) arrays to NetCDF files
886      with the correct (that is, the complete multi-dimensional) set of
887      array indicies
888      - used in mom_vecinv() to write the diagFreq output
889      - tested (demonstrated) in verification/aim.5l_cs
890    o further mnc-ification
891      - add verification/lab_sea to the list with mnc setups
892      - fix undefined mnc v-names in cd_code
893      - add kpp to mnc output (both snapshot and timeave)
894    o non-hydrostatic code
895      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
896        in calc_gw.F
897      - defaults to viscAh
898      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
899        friction or Leith) in non-hydrostatic mode, as long as there is
900        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
901    o pkg/cost
902      extend simple cost functions to treat time mean quantities
903      (T,U,V) via cost_accumulate_state from cost_tile
904    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
905        be 2 times larger than the minimum size the advection scheme requires.
906        now get a perfect conservation of salt in advect_cs test-exp (updated)
907    o GGL90 (Gaspar's TKE mixed layer)
908      - add horizontal diffusion of TKE, requires exchanges in
909        do_fields_blocking_exchanges, horizontal diffusivity is zero by
910        default. In OPA there is no horizontal diffusion of TKE but the
911        mixing coefficients are computed from a horizontal average of TKE of
912        6 points or so. I think that diffusion has a little more physical
913        justification.
914      - clean up ggl90_calc in the hope of reducing memory usage (this hope
915        was in vain)
916      - mask tke-variable in ggl90_init
917    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
918    o fix biharmonic diffusion on CS-grid.
919    o more obcs stuff
920      - added obcs_external_fields_load as an alternative to the EXF-pkg option
921        for reading boundary values. This routine is called from
922        obcs_prescribe_read
923      - updated obcs_check
924      - changed sponge layer relaxation parameter units for days to seconds
925      - turned off sponge layer by default
926      - changed argument list of OBCS_CALC to myTime+deltaTclock
927      - fixed about 35 bugs in obcs_external_fields_load
928    
929    checkpoint55c_post
930    o obcs stuff
931      - new runtime flags useOBCSprescribe, useOBCSbalance
932      - re-arranged obcs_calc
933      - moved exf_getobcs to obcs_prescibe_read
934        obcs_prescibe_read is called after ORLANSKI stuff
935        and independent of it (executable can contain all).
936      - updated obcs_check
937      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
938        These may be necessary only if tangential velocities are
939        prescribed at OB, not sure, needs testing.
940    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
941      which simplifies the calls and passes the ifc check-bounds test
942    
943    checkpoint55b_post
944    o add a 2D scalar, Z location, exchange_2 routine.
945    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
946      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
947      affects advect_cs results (for the wrong reason): update output.txt
948    o use a more standard discretization for biharmonic viscosity ;
949     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
950      affects results of dome set-up: update output.txt
951    o fix gad_advection.F (CubedSphere part), back to version 1.23
952    o fix bug in mom_vi_del2uv.F (CubedSphere part).
953    
954    checkpoint55a_post
955    o merged code to
956      * prescribe/read time-dependent open boundaries
957        (works in conjunction with exf, cal)
958      * sponge layer code for open boundaries
959      * each boundary N/S/E/W now has its own CPP option
960        (healthy for the adjoint)
961    
962    checkpoint55
963    o up-to-date adjoint of previous breaks
964      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
965      - global_ocean_ebm: adjoint still needs fix (TLM ok)
966      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
967      - carbon: * remove tr1-related adjoint verification
968                * add ptracer as control variable
969    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
970      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
971    
972    checkpoint54f_post
973    o in verification/carbin/ remove experiment related to
974      ALLOW_PASSIVE_TRACER (array tr1 etc)
975      code_ad/ input_ad/ results_ad
976    
977    o add two new packages
978      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
979        + subject to optimization (memory)
980      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
981        + subject to reordering (many GOTOs in the original code)
982        + so far opps is called for every (i,j) point, and then operates in
983          the vertical; one may want to reorder the scheme in order operate in
984          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
985          fields)
986    o overhaul of IO so that we now have flags for MDSIO and/or MNC
987      - all verification tests compile and run with linux_ia32_g77
988      - defaults are compatible with current input files--nothing
989        should change if you were not previously using MNC
990      - MNC output has been added in numerous places (eg. timeave)
991        but there are still a few writes not yet do-able with MNC
992        (this is in progress)
993      - flags now allow for either/or/both use of MDSIO and MNC and
994        documentation will soon follow
995      - numerous small formatting cleanups for ProTeX
996    o add version info (via BUILD_INFO.h) to MNC and stdout
997    
998    checkpoint54e_post
999    o add two new packages
1000      - pp81 (Packanowski and Philander, 1981), Richardson number and
1001        stratification dependent mixing
1002      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1003      - these scheme operate in a similar manner as KPP (without ghat, of
1004        course), however there is only one diffusivity that is used for both
1005        temperature and salinity (and passive tracers)ç
1006    o add offline package
1007    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1008      provided by Stephanie Dutkiewicz
1009    o genmake2: add ability to search for C compilers and cleanup test output
1010      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1011    
1012    checkpoint54d_post
1013    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1014    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1015      leading to additional shift by 5 days each year of integration
1016       (i.e. leading to considerable offset over the years)
1017    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1018    o start with no AB and no initial filtering (staggerTimeStep):
1019      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1020    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1021      (external loading & cpl import/export stay in forward_step.F)
1022    o update coupling interface to work with new staggerTimeStep
1023    o change MDSIO ptracers_pickup.
1024    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1025    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1026    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1027    
1028    checkpoint54c_post
1029    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1030      this affects (truncation error) output.txt of test-exp:
1031       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1032    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1033    o change Qnet to always be the net heat flux, (+upward).
1034      affects (truncation error) output of natl_box exp.: updated
1035    o define the max number of passive tracers in PTRACERS_SIZE.h
1036    o start to test mnc routinely in exp0
1037    o add sea-ice loading (sIceLoad) as a new forcing field.
1038    
1039    checkpoint54b_post
1040    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1041       impressive on Altix and Opteron systems)
1042    o diagnostics can now write NetCDF files through the mnc package
1043    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1044    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1045    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1046      affects (truncation error) output of lab_sea & natl_box exp.: updated
1047    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1048    
1049    checkpoint54a_post
1050    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1051    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1052    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1053    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1054      + internal_wave (shift in writing cg2d_ini_res)
1055    checkpoint54a_pre
1056    
1057    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1058      - modified verification/lab_sea and natl_box_adjoint accordingly
1059    
1060    checkpoint54
1061    checkpoint53g_post
1062    o prepare splitting of thermodynamics: store convect.counter in common block
1063    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1064      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1065    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1066    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1067    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1068    o restore adjointability
1069    
1070    checkpoint53f_post
1071    o modifications that affect AIM experiment results (update output.txt):
1072      - no advection of S at top interface Nr (pkg/generic_advdiff)
1073      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1074    o AIM pkg:
1075      - include stability function into surf.Flux derivative relative to Tsurf
1076      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1077    
1078    checkpoint53e_post
1079    o merged cylindrical coord configuration
1080    o added rotating_tank experiment
1081    checkpoint53e_pre
1082    
1083    checkpoint53d_post
1084    o faulks upgraded: re-generate output.txt that have changed:
1085       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1086    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1087    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1088    o added Sadourny discretization of Coriolis
1089      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1090      - re-enabled use of omega3 (useAbsVorticity)
1091    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1092      vector-invariant equations
1093      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1094    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1095      hopefully without new bugs
1096      - still to do: biharmonic friction for non-hydrostatic w
1097    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1098    o regenerated output for global_ocean_ebm (using -ieee)
1099    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1100      of mom_common/
1101      - simple re-arrangement of instructions within computing loop
1102    checkpoint53d_pre
1103    
1104    checkpoint53c_post
1105    o new version of coupler for AIM+thSIce and Ocean models
1106     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1107     - land: change Evaporation of snow
1108     - aim with thSIce: fix bug in snow-precip.
1109    o changes to calc_gw.F
1110     - bug fix for w^2 term near the bottom boundary
1111     - (hopefully) improve the lateral slip boundary condtions for use with
1112        partial/looped cells
1113      - because the bug fix changes two verification experiments anyway (exp5
1114        and plume on slope), change the lateral boundary condition from half slip
1115        to the value of no_slip_sides
1116    o ebm package wasnt quite up to the parallel task. Fixed that.
1117    o Adjoint of EBM package + verification
1118      * TLM OK
1119      * ADM not sufficient accuracy yet (needs further testing)
1120    
1121    checkpoint53b_post
1122    o Commiting new energy balance model to repository
1123      * package is pkg/ebm
1124      * verif. is verification/global_ocean_ebm
1125      * references are in ebm_driver.F
1126    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1127    C        Global thermohaline circulation. Part I:
1128    C        Sensitivity to atmospheric moisture transport.
1129    C        J. Climate 12(1), 71-82
1130    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1131    C        Global thermohaline circulation. Part II:
1132    C        Sensitivity with interactive transport.
1133    C        J. Climate 12(1), 83-91
1134    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1135    C        Destabilization of the thermohaline circulation
1136    C        by atmospheric eddy transports.
1137    C        J. Climate 7(12), 1870-1882
1138    o Will need long integration testing.
1139    checkpoint53b_pre
1140    
1141    o created pkg/mom_common in preparation for variable viscosity code
1142    o renamed and split ini_mnc_io
1143    o pkg/land: only liquid water can diffuse or run-off
1144    o AIM using land: soil wetness availability account for snow
1145    o added printMapIncludesZeros to EEPARMS namelist
1146    
1147    checkpoint53a_post
1148    o restore TAMC compatiility for exf_constants.h
1149      (no usage of _d in .h)
1150    o Additional storing in KPP in an attempt to fix
1151      TAMC problem with adjoint of KPP code.
1152      (no success...)
1153      Identical code works fine with TAF.
1154    o Fixed verification/natl_box_adjoint experiments.
1155      Initial conditions for Experiments 4 and 5 are now
1156      set to "SEAICE_initialHEFF=0", which is more reasonable,
1157      and hence gives results closer to that of Experiment 2.
1158      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1159    
1160    checkpoint53
1161    o stable checkpoint with up to date adjoint
1162      TLM tests only run for 1st grdchk at the moment. Its unclear if
1163      this is a code problem or a problem with resetting code for g_
1164      variables that is being autogenerated wrong.
1165      Otherwise:
1166       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1167       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1168         are both still in chaos following their security messes.
1169    
1170    checkpoint52n_post
1171    o various build (mostly genmake2) changes including:
1172      - ability to build/run more easily within Cygwin and MacOS X
1173      - more complicated Makefiles with a stronger dependence on Gnu Make
1174  o pkg/seaice modifications  o pkg/seaice modifications
1175    - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost    - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1176      of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer      of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer

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