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revision 1.286 by dimitri, Mon May 3 07:12:25 2004 UTC revision 1.671 by jmc, Thu Jun 8 01:13:52 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: fix sloppy output and fix a bug
8    
9    checkpoint58h_post
10    * Modifications for bottom topography control
11      o replace hFacC by _hFacC at various places
12      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
13      o add non-self-adjoint cg2d_nsa
14      o update autodiff support routines
15      o re-initialise hfac after ctrl_depth_ini
16      o works for 5x5 box, doesnt work for global_ocean.90x40x15
17    * Adding verification for 5x5 box (4-layer) bottom topography control
18    
19    checkpoint58g_post
20    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
21       used for mean seasonal cycle, mean diurnal cycle); add an example
22       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
23    o pkg/ggl90:
24      - add parameter (minimum surface kinetic energy)
25      - fix bug (avoiding division by zero)
26    o couple pkg/thsice to pkg/seaice:
27      - modify advection in seaice to accomodate new scalar fields to be advected
28      - only muliDimAdection scheme work with seaice/thsice
29      - mapping of thsice-variables to seaice-variables, back and forth
30      - does not break the verification experiments, but does not give the
31        desired results either
32    o pkg/seaice
33      - make (default) second order advection a bit less confusing?
34    
35    checkpoint58f_post
36    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
37      to pkg/seaice):
38      - new routines thsice_map_exf and thsice_get_exf provide the interface
39      - add an additional formal parameter to thsice_solve4temp
40    o pkg/exf:
41      - add new fields wspeed, snowprecip (to be able to couple to thsice)
42      - correct Stefan-Boltzmann constant
43      - new parameter for longwave surface emittance
44      - separate some stuff from exf_bulkformulae into new routines  
45        exf_radiation, exf_wind
46      - add new parameters and constants: longwave emissivity for ocean, ice
47        and snow, evaporation parameters over ice
48      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
49        either wind from stress or stress from wind
50    o pkg/thSIce:
51    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
52    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
53       and THSICE_CALC_THICKN
54    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
55    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
56      to make debugging easier.
57    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
58    o pkg/bulk_force:
59      - clean-up comments and parameters ;
60      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
61    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
62      generate new output for test-experiment: aim.5l_cs.thSI
63    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
64      testreport accordingly
65    
66    checkpoint58e_post
67    o SEAICE_CGRID adjoint done
68    o R_STAR adjoint implemented.
69      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
70      * need to sort out init. of h0facc, etc.
71    o Make pkg/profile fully independent of ecco,cost, etc. stuff
72      to be able to use it in pure forward.
73    
74    checkpoint58d_post
75    o upgrade simple test-experiment to tutorial example:
76     step.1: duplicate the experiment and (step.2) will remove the old copy.
77      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
78      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
79      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
80      tutorial_global_oce_biogeo    <- copy of dic_example
81      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
82      tutorial_plume_on_slope       <- copy of plume_on_slope
83      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
84      tutorial_global_oce_optim     <- empty for now (David ?)
85      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
86     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
87    o correct a sign problem in cost_scat.F
88    o obcs and ptracers: fix boundary conditions for advections schemes
89      with larger stencil
90    o thsice adjoint: start
91    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
92      completeness
93    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
94      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
95    o ptracers adjoint:
96      * avoid extensive recomputatations
97      * fix missing re-init. of gptr (missed by TAF)
98    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
99      me to turn off the excessive output to STDOUT that this package produces
100    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
101      and add those terms in Vector-Invariant formulation.
102    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
103      if the control period (xx_hfluxperiod etc) is 0
104    o in profiles pkg, clean routines and fix details
105    o in ecco pkg, reading ssh data:
106      fix problem in case the model does not start at iter0=0
107    o fix mnc-pickup/restart for ptracers
108    o new package prifiles:
109      code to compute profile-based cost by Gael Forget
110      (modifs in ecco, ctrl, autodiff)
111    o Benign bug fix in initialization (spotted by M. Mazloff) of
112      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
113    
114    checkpoint58c_post
115    o adjoint: finish NLFS adjoint and provide reference output in
116      verification/global_ocean.90x40x15/results_ad_nlfs
117    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
118      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
119      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
120      with SEAICE_CGRID defined.
121    o move calendarDumps from "data" to "data.cal" and clean-up the code
122      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
123    o add useEXF & useCAL flags (for now, set in hard-coded way)
124    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
125      (were missing in NH mode, and wrong in quasihydrostatic mode).
126      waiting for Chris updated version of calc_gw to add those CALLs.
127    o fix bug in quasihydrostatic S/R ;
128      add a test for this option: global_ocean.90x40x15.qshyd
129    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
130      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
131    o add on/off flag useOffLine for package OFFLINE
132    o seaice:
133      - modify advection so that it works also on the C-grid
134      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
135        problem in multi-tile runs with C-grid
136      - add flags for clipping ice velocities and/or masking solver forcing
137      - fix drag (ocean on ice) formulation and a bug that caused noise in the
138        C-grid solver
139      - added a few comments to seaice_diffusion.F
140      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
141        are now exclusive)
142      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
143        required re-ordering the code a little:
144       + make DAIRN global variable (defined in SEAICE)
145       + move computation of the viscosities eta and zeta into a new separate
146         routine (because I need to recompute them in seaice_ocean_stress.F)
147    
148    checkpoint58b_post
149    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
150      update output.txt of exp. aim.5l_cs.thSI
151    o various mnc cleanups and improvements:
152      + shrink lookup tables by factor of ~4
153      + better error reporting when running out of lookup space
154      + able to handle longer path/file names (up to 500 chars)
155    o adjoint:
156      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
157      - TBD: "hidden" mom_vecinv recomp. in dynamics
158    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
159     (allow to differentiate between forcing components using new integer flags:
160      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
161     and add new flag to put Dissipation tendency out of Adams-Bashforth.
162    o ecco
163      - enable trend removal from SSH anomaly obs.
164    o adjoint
165      - a fix for PmEpR when #undef EXACT_CONSERV
166      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
167      - try to fix "hidden" recomp. in forward_step for NLFS
168        (NLFS seems broken sometimes after I checked it in)
169    o seaice:
170     - add c-grid version of the dynamic solver:
171       + three new routines that are the c-grid substitute lsr, dynsolver
172         and ostres
173       + put a few fields that were local to dynsolver into global common
174         blocks, so that I can move the computation of stresses etc into
175         seaice_lsr (saves coding but may break the adjoint).
176     - replace more hardwired parameters by runtime parameters
177     - add ice masks that mask the rhs of the implicit solvers where there
178       is no ice (commented out in seaice_dynsolver, because i am not sure
179       if this works properly), eventually this should replace the clipping
180       of ice velocities in seaice_dynsolver to +/-40cm/s.
181    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
182      include it only where its needed
183    o move balancing of fluxes before the call of external_forcing_surf
184    o seaice:
185      - correct units of turning angles (now they are really in degrees)
186      - move computation of GWATX/Y out of main routine into dynsolver
187      - initialize GWATX/Y in seaice_init
188    o Apply mask on Fresh-Water flux (needed for SSH forcing).
189      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
190    o seaice: add runtime flags for turning angles (default to zero)
191    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
192      and trend from exf forcing and ctrl control adjustments
193    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
194      (since checkpoint57x_post)
195    o change the default rotation period to 86164.s = the Earth rotation
196    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
197      and based on a reference stratification. Tested within hs94.cs-32x32x5.
198    o seaice advection: add code for choosing between the default (2nd order
199      central differences) and multiDim advection schemes provided by
200      pkg/generic_advdiff
201    o seaice:
202      - removed all references to SEAICE_GRID.h fields from
203        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
204        (cubed-sphere configuration will change a little)
205      - grid computations in seaice_init are obsolete now.
206      - cleaned up code a little so that is easier to read (hopefully).
207      - added new (better?) discretizations of default advection and diffusion
208        (turn on with SEAICEuseFluxForm)
209      - replace 1 in 3d global fields by kSurface in growth.F
210      
211    checkpoint58a_post
212    o seaice:
213      - bug fix in advect.F
214    o shelfice:
215      - separate shelfice load anomaly from pload (breaks with time
216        dependent forcing), => introduce constant field shelficeLoadAnomaly.
217        Its default is 0., but it may be computed more cleverly from (unknown)
218        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
219        done offline. A good approximation of the pressure load anomaly is
220        necessary to avoid large initial adjustment processes underneath
221        deep-reaching shelfice.
222      - small fix in ISOMIP shelfice_thermodynamics
223      - add more sophisticated thermodynamics of Hellmer (1989), this is
224        now the default
225      - give a few constants more intuitive names
226    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
227      if bulk formulae are used in long integration (especially EmPmR). Turn
228      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
229      if balancePrintMean, the imbalance that is substracted is printed to
230      STDOUT.
231    o fix bug (typo) in obcs_apply_eta.F
232    o add a new package shelfice which enables us to model the circulation
233      underneath shelf-ice with draughts of hundreds of meters.
234     - works
235     - to do: + include improved thermodynamics
236              + check whether kSurfC (from model/inc/SURFACE.h) can be used
237                instead of new field kTopC
238              + can we use topoFile, Ro_surf and existing code in ini_depth.F
239                instead of new field R_shelfIce and new code in ini_depth.F
240                and ini_mask_etc.F?
241              + adjust vertical mixing schemes?
242    o seaice pkg:
243     - add a cpp-flag to include a simple formula for a salinity dependent
244       freezing point of sea water at the surface
245     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
246       meridional stresses are now different (and hopefully correct)
247    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
248       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
249       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
250    o pkg/diagnostics: add options and parameters for regional-statistics
251       diagnostics ; define regions by reading a region-mask from a file
252       (might add other options later)
253    o pkg/bulk_force:
254     - add option and parameters to use AIM surface-flux formulae.
255     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
256       others forcing fields (defined in PARM05, parameter file "data") are loaded
257       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
258     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
259     - use the right EXCH call for uwind,vwind (to work on CS-grid).
260     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
261       and parameters (note: calcWindStress replaces .NOT.readwindstress).
262     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
263    
264    checkpoint58
265    o add "--embed-source" option to genmake2 which, when the supporting
266      tools can be compiled (as determined by genmake2) will turn on the
267      embed_files package which then embeds the entire MITgcm source code
268      (*.[fFhc] + Makefile) used for the build within the executable
269      - requested by CNH but off by default
270      - adds a paltry <9MB to the mitgcmuv executable in most cases
271      - only writes the output when useEMBEDSRC in eedata is true
272    o clean up 3-dim. relaxation codes:
273      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
274      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
275      * Thanks to Tom Haine for testing!
276    
277    checkpoint57z_post
278    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
279      affects output (@ truncation level) of exp. plume_on_slope ; updated.
280    o fix the pickup behavior for obcs in combination with ptracers
281    o fix a bug in ptracers_external_fields_load
282    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
283      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
284    o transfered surface NH pressure to eta field (if exactConserv).
285    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
286         and update lab_sea output.txt file.
287    o completing 3-dim. relaxation code: additional term
288         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
289      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
290      * At compile time, in "EXF_OPTIONS.h" set
291          #define  ALLOW_CLIMTEMP_RELAXATION
292          #define  ALLOW_CLIMSALT_RELAXATION
293      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
294          tauThetaClimRelax3Dim = 15552000.0,
295          tauSaltClimRelax3Dim  = 15552000.0,
296      * 3 cases:
297          1) Use a constant-in-time 3-dim. field
298          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
299          3) Real-time relax. to time-evolving prescribed field
300    o Adding Laplacian-type smoothness constraint on
301      initial and boundary (forcing) controls (ic, bc)
302      * enable at compile-time via
303        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
304      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
305      * Absolute scale somewhat unclear so far
306      * no area weighting was included since no other cost term does so far
307    
308    checkpoint57y_post
309    First step for a NLFS adjoint
310    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
311    o new init. routines for calc_r_star, calc_surf_dr
312    o still need to deal with ini_masks_etc
313    o testreport seemed happy
314    checkpoint57y_pre
315    
316    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
317    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
318    o add new offset feature to offline pkg (plus minor cleanup)
319    o cfc fixes for final year of integration
320    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
321      be in GCHEM_OPTIONS).
322    
323    checkpoint57x_post
324    o fix testreport Pb in multiple test experiment.
325    o cleanup our namelist syntax in verification:
326      - make it more F95 standards compliant (some work still needed)
327      - allows the vast majority of our tests to work with gfortran
328    o Non-Hydrostatic:
329     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
330     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
331    o Allow to apply AB on T,S rather than on AB(gT,gS):
332     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
333     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
334       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
335     - need a "clever" read_pickup to restart from the other AB formulation
336    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
337    o remove some unused variables (reduces number of compiler warnings)
338    o adjoint
339      * Disable useVariableViscosity for adjoint for time being
340        (there are a number of extensive recomputations)
341      * Initialize certain variables needed for adjoint
342    
343    checkpoint57w_post
344    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
345                 fix the singleCpuIO RS version of MDSWRITEFIELD
346       and add a WARNING if using globalFiles=T with multi-processors.
347    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
348      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
349    o tracer advection scheme:
350      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
351       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
352       was not very convenient).
353      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
354       (further tests needed for the implicit DST & Flux-Limiter schemes).
355    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
356      and sRef for convenience, handy, when you want to initialize
357      ptracers in a large domain with a constant non-zero value. Also,
358      untangle ptracers_init.F a little.
359    
360    checkpoint57v_post
361    o change dome exp. to use variable viscosity in side-drag terms.
362    o remove all the files from the cfc_offline test since they are now
363      incorporated into tutorial_cfc_offline which has been producing
364      identical results for a few days of testing
365    o add new parameter: sideDragFactor to enable half-slip-side BC
366      and change side-drag S/R to use viscosity from mom_calc_visc
367      (can switch back by setting sideDragFactor=0.); affects results at
368      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
369       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
370    o vorticity & strain are now computed without masking, to account for
371      no-slip-side BC in variable viscosity calculation ; mask is applied
372      anyway later on, before computing advection/coriolis terms.
373    o modify exp4 to test new obcs support for reading from external files
374      and for passive tracers
375    o fix behavior of ptracers_monitor when monitor output is written to a
376      netcdf-file; still not independent of monitor.F (writes in the same
377      file).
378    o change default value of tRef (put a uniform, meaningful value for ocean
379      & atmos) and initialize sRef (was missing, as Martin mentioned).
380    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
381      to be proportional to enstrophy dissipation length.  Thus,
382       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
383      This is now consistent with Smagorinsky and with the manual.
384    
385    checkpoint57u_post
386    o OBCS and PTRACERS: add open boundary support for passive tracers
387      - either use homogenous (pseudo) v.Neumann conditions or prescribe
388        OB-values from file; this is not different from the way theta and salinity
389        are treated
390      - however, Orlanski-radiation conditions are not supported, and the model
391        will stop if you use pTracers and Orlanski at the same time.
392      - beefed up the rountine obcs_external_fields_load: now only those open
393        boundary values are overwritten with values from files for which there
394        are really files, otherwise the OB-fields remain untouched. This makes
395        it possible to use different OBs at different ends of the domain (as
396        with EXF)
397    o reduce number of exch calls in shap_filt (s2).
398    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
399      truncation level) 4/5 MLAdjust test results (11&12 digits match).
400    
401    checkpoint57t_post
402    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
403    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
404      same truncation, independent of the face number: affects affects several
405      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
406    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
407      note that biharmonic viscosity + no-slip was not tested in any experiment.
408    o fix bug in non-linear free-surf side-drag ; generate new output for
409      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
410    o make mnc honor the writeBinaryPrec flag for most kinds of output
411    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
412    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
413      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
414    o add brackets in multi-terms sum to get same truncation, independent of
415      the face number (manage to get exactly same value of gU,gV at the cs-edge)
416      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
417    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
418      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
419      a maximum grid-scale Reynolds number.  Also, changes all length calculations
420      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
421      Suggested values of viscosity parameters found in mom_calc_visc.
422      Many new viscosity diagnostics available.
423    
424    checkpoint57s_post
425    o Add clearing-house for viscosity calculations, mom_calc_visc and
426      correct numerous bugs in LeithD and Smagorinsky discretizations.  
427      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
428      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
429      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
430      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
431      The Strain-Tension form is now called with useStrainTensonVisc=.true.
432      ViscAhStrain and viscAhTension are now retired.
433    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
434    o In response to JMC's bug report, genmake2 now ignores any soft-links
435      that it finds in the *current* directory when searching for files.
436      Soft-links found in any other source directories will still work as
437      they did before.
438    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
439      a C routine to unlimit the stack size
440    o mnc-ify pkg/aim snapshot vars
441    o mnc-ify pkg/land as requested by Daniel
442    o various changes to mnc including:
443      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
444      - output can now be grouped so that all files within a group
445          change the ITER portion of their names in lock-step together
446      - can now read ("global") PER-FACE (in addition to PER-TILE) files
447          and works with both EXCH1 and EXCH2 (but needs more testing)
448      - writing works for all verification test cases w/ g77 on Linux
449    
450    checkpoint57r_post
451    o make MNC variable initialization happen earlier
452    o add diagnostics for (almost) each term of the momentum Eq.
453    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
454    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
455    o remove MINIMAL_TAVE_OUTPUT option ;
456      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
457    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
458      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
459    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
460    o add time-dependent SST, SSS control
461    o cost terms in ecco/ modularized (new cost_generic.F)
462    o cost_averages routines are modularized (new cost_averagesgeneric.F)
463    o new infrastructure for seaice model vs. obs misfits in seaice/
464      * driver from the_main_loop.F is seaice_cost_driver.F
465      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
466      * gradient check in Exp. 6a of natl_box_adjoint/
467    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
468      (see README file)
469    
470    checkpoint57q_post
471    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
472    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
473      - bug was reported by Jean-Michel and Ian Fenty
474    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
475      update exp. cpl_aim+ocn output.
476    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
477      Needed for high-res. runs with large global files
478      to be able to limit tapelev size
479    o Changed some tests for adjoint:
480      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
481      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
482      * global_ocean.90x40x15/ back to default 3-level checkpointing
483    o Modifications to enable scripted COMMON to MODULE conversion
484      * verification/OpenAD/code/ has necessary scripts and description;
485      * converts, compiles and runs successfully;
486    
487    checkpoint57p_post
488    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
489    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
490      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
491    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
492    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
493      (was already the case for dissipation with mom_vecinv,
494       and also the case for grad.PhiHyd when staggered-timeStep)
495      This will allow to put dissipation out-off the AB time-stepping.
496     Unfortunately, affects truncation error. Update output of exp. that "fails"
497      (cg2d matching number) and leave the others for later: front_relax(10),
498      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
499      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
500    
501    checkpoint57o_post
502    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
503      (2) its ready to be documented during the 20050801 DocFest
504    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
505      for ideal_2D_oce and lab_sea on linux_ia32_g77
506    o set to #undef CTRL_SET_OLD_MAXCVARS_30
507      in global1x1_tot/code_seaice_adj to access indices 32, 33
508      (worth another tag)
509    
510    checkpoint57n_post
511    o adding precip control xx_precip 32
512    o adding swflux control xx_swflux 33
513    o Replacing 10 forcing penalty cost routines by 1 generic.
514    o Implementing partitioning in time-mean and variable adjustment
515      for atmos. state.
516    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
517    o in natl_box_adjoint:
518      * updated exp 1 to 10
519        (but does not have time-mean vs. variable split results yet)
520    o updated global1x1/*_seaice_adj/
521      to incorporate latest changes
522    o enable useSingleCpuIO for mdsio vector routines
523      (applies in particular to tapelev I/O)
524    o removed inefficient K-loop in all active_file*control*.F
525    
526    checkpoint57m_post
527    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
528      and advect_cs (use EXCH-2 and standard cs-32 grid files).
529    o pkg/exch2: filling of face-corner halo regions is optional
530      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
531    
532    checkpoint57l_post
533     tag before updating tutorials (pre-release-2)
534    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
535       for output and interpolation of input fields onto model grid)
536    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
537       Affects results of exp. rotating_tank ; update output.txt.
538    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
539          and taking the square quantity and/or using a fraction-weight field.
540    o fix aim_diagnostics_init.F mate numbers.
541    o add mnc output capability to diagnostics/diagstat and update
542      our cvsignore files for the ACSII output generated
543    
544    checkpoint57k_post
545    o lab_sea now uses diagnostics package and provides a suite of
546      new EXF diagnostics output.
547    
548    checkpoint57j_post
549    o exf
550      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
551        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
552        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
553      * extended diagnostics output
554        - now includes all EXF variables
555        - hs, hl moved to common block
556        - separate S/R for diagnostics, called after ctrl vector is added
557        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
558        - EXFqnet contains true Qnet (i.e. includes qsw)
559      * updated verif. lab_sea, global_with_exf
560      * Rearranging hflux (exf_mapfields -> exf_getforcing)
561        to ensure that diagnostics sees a true EXFqnet
562    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
563    o diagnostics pkg: change pointers so that 1 diagnostic can be used
564      several times with different frequencies.
565    o mnc-ify the thsice package as requested by Daniel Enderton
566      - the monitor--MNC output needs work
567      - many attributes need to be added (most are currently blank)
568    o mnc-ify theaim_v23 package as requested by Daniel Enderton
569      - many attributes need to be added (most are currently blank)
570    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
571    o add Sadourny like discretization to the 4th.O vorticity advection scheme
572    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
573      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
574         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
575    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
576     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
577    
578    checkpoint57i_post
579    o Diagnostics package was changed: diagnostic allocation is now deactivated
580      by setting an empty file name in the namelist (used to be by setting 0 frequency)
581    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
582      add 1rst Order upwind vertical Shear.
583    o add a quick fix for A/B checkpointing in OFFLINE mode
584    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
585      end-run around the C/Fortran linking horror in eesup/src/timers.F
586    o added pkg/runclock: allows user to terminate run based on wall clock
587    o added non-hydrostatic scaling parameter: nh_am2
588    o pkg/my82: futile attempt to make results compiler-independent by adding
589      some "_d 0", etc. no effect.
590    o for mnc output, fill the 'T' coordinate var with myTime and create a
591      separate 'iter' variable for iteration count
592    o pkg/diagnostics:
593      add new capability: output of Global/Regional & per-level statistics ;
594      tested against monitor output (including land & thSIce) on various exp.
595    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
596    
597    checkpoint57h_done
598      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
599      data.diagnostics, data.gchem, data.ptracers) is done.
600    
601    o pkg/diagnostics: prepare for Global/Regional statistics.
602      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
603    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
604      and rename it: DIFFERENT_MULTIPLE
605    
606    checkpoint57h_post
607    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
608    o pkg/diagnostics: change output frequency, now in seconds (instead
609      of Nb of iterations). This requires to change data.diagnostics.
610    checkpoint57h_pre
611    
612    o in mnc, let the user create the output dir if both mnc_outdir_date
613      and mnc_outdir_num are false
614    o add fflags() to pkg/diagnostics which allows one to specify, on a
615      per-file basis, the file precision [default behavior is unchanged]
616    o added diagnostics to pkg/kpp, including computation of mixed layer
617      depth based on a temperature/density criterion
618    o updated verification/natl_box to test the new pkg/kpp diagnostics
619    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
620    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
621    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
622      not mnc -- this mistake was found by JMC and is now corrected
623    
624    checkpoint57g_post
625    o add Adams-Bashforth 3rd Order time stepping:
626      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
627      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
628    checkpoint57g_pre
629    
630    o make lambda[Theta,Salt]ClimRelax spatially varying
631      (default remains spatially uniform constant based on tau)
632    o added new control variables
633      * init. uVel, vVel, etanN
634      * lambda[Theta,Salt]ClimRelax
635    o separate masks used for ctrl_pack/unpack 'from write_grid' output
636      (suggested by G. Forget)
637    
638    checkpoint57f_post
639    o add parameter "baseTime" = model base time = time at iteration zero
640      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
641      account for baseTime shift
642    o move Coriolis arrays from PARAMS.h to GRID.h
643    checkpoint57f_pre
644    
645    o mnc-ifying the seaice package
646    o introduced an alternative length scale calculation for use in the limiting
647      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
648    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
649    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
650      as well as grad(vort3).  Made it compatible with both approximate form
651      for the cubed sphere and full form of these gradients.  Added flag
652      useFullLeith to select between approximate and full form.  
653    o add "d0" in getcon.F to reduce differences between compilers/platforms
654      update output.txt of exp. fizhi-gridalt-hs
655    o change port_rand funtion to allow to set the seed.
656    o fix obscure MNC bug involving conversion between reals and integers
657      - it caused no problems with certain (eg. gcc, ifc) compilers but the
658        new version is now more standards-compliant
659    o adjoint-related modifications
660      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
661      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
662      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
663    
664    checkpoint57e_post
665    o Adding eddy stress controls a la Ferreira et al.
666    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
667    
668    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
669      update output.txt of exp. fizhi-gridalt-hs
670    o add more "Z" dimensions and associated coordinate vars to MNC
671    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
672    o parameter calendarDumps: when set, approximate months (30-31 days) and years
673      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
674      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
675      months and years.  Requires pkg/cal.
676    o diagnostics: add pickup functionality
677      - off by default for backwards compatibility
678      - current version only uses MDSIO -- MNC will be added
679    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
680    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
681    
682    checkpoint57d_post
683    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
684    o modify verification/ideal_2D_oce so that it tests the creation of mnc
685      output from the diagnostics package
686    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
687    o make genmake2 more portable by using ".$FS" instead of ".f" for more
688      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
689    o add coordinate variables to the MNC output from the diagnostics package
690    o change MNC-flags default value: true when useMNC=TRUE
691    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
692      the ability (off by default) to read the grid information using MNC
693    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
694    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
695    o do snap-shot diagnostics at the middle of the time-interval (instead of
696      at the end).
697    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
698      new test for AIM with thSIce + slab-ocean
699    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
700    o move state variable diagnostics to the beginning of the time step ;
701      (note: still needs some work specially for snap-shot diagnostics)
702      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
703    
704    checkpoint57c_post
705    o Change testing option (-ieee) to get closer agreement between g77 & ifort
706    o generate new output.txt files on faulks with g77 & the new -ieee option
707    checkpoint57c_pre
708    
709    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
710      update output.txt of exp. global_ocean.90x40x15
711    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
712      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
713    o add saltFlux(+File) forcing capability with periodicExternalForcing
714    o allow to use pkg diagnostics for GM-Redi & ThSIce output
715    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
716    o improvements for the MNC output from DIAGNOSTICS:
717      - correct handling of the unlimitied dimension
718      - all dims now have associated coordinate variables
719      - variables located at U, V, and Corner ("Z") points are now written
720        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
721        *all* data points are output
722    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
723    o added pkg/seaice/seaice_monitor.F
724    o mdsio_readfield.F can now read files visible only to master MPI process.
725    o pkg/seaice: some test code for ice-modified ocean stress
726    o exf_getffields interpolation defaults to bilinear for all scalar forcing
727      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
728      spurious negative numbers for precipitation and humidity.  Will cause
729      some small numerical differences for integrations using pkg/exf/exf_interp.F.
730    o pkg/ctrl/
731      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
732        May be enabled via doPackDiag
733      *  introduce z-scaling of
734         + gradient (doZscalePack) and
735         + control (doZscaleUnpack)
736    o pkg/mdsio/
737      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
738      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
739    
740    checkpoint57b_post
741    o simplify options in diagnostics_fill arguments (remove weird combinations)
742    o fix MNC coordinate variables so that they now contain per-face index
743      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
744      general, EXCH2 grids are only aligned to a "local" coordinate system
745    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
746    o Implement instantaneous output within pkg diagnostics:
747      setting a negative frequency in data.diagnostics produces
748     "snap-shot" output (as opposed to time-average if freq > 0)
749    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
750      NOTE: change ptracer diagnostics name: use 2 characters to work with
751            more than 9 tracers. Add also diagnostics of advect & diffus flux.
752    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
753      becomes the coordinate variable for the 'T' dimension
754    o add CF-style coordinate variables to MNC
755      - just a first cut:  numbers are meaningless on the cubesphere and
756        missing along the T axis but otherwise it works!
757    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
758    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
759    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
760      this is based directly on what the model compute, so that the content of
761      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
762    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
763    o clean up build options files for SunOS, in particular
764      - remove -traditional from xmakedepend
765      - change -xarch=v9 to -xarch=native for f77
766      - restore use of make (not gmake)
767      - add CC=gcc if using g77
768    o changes per discussion of AM, JMC, & EH3 today:
769      - move redundant "grid" variables out of "state" -- in preparation of
770        creating proper CF-style coordinate variables and in recognition
771        that any/all grid variables can be easily copied (eg. w/NCO) from
772        the grid files into any of the other NetCDF files
773      - *always* output grid variables with MDSIO (this will eventually be
774        changed)
775      - output MNC grid file if useMNC is true
776    o every instance of _END_MASTER() has been found and replaced with
777      _END_MASTER( myThid ) in order to satisfy certain picky Sun
778      preprocessors
779    o re-arrange diagnostics pkg initialisation:
780     - allow each package to extend the available diagnostics list
781     - add some checking and fix small problems (multi-threaded, ...)
782     - new S/R diagnostics_fill (replace fill_diagnostics):
783       look through the short list of active diag. (instead of the long list)
784       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
785    
786    checkpoint57a_post
787    o this set of changes restores TAMC compatibility
788      tested for global_ocean.90x40x15 adjoint on trough
789      (what a pain)
790    
791    checkpoint57a_pre
792    o some modifs in tools/build_options for sunos
793    o call ctrl_pack for ctrl at end for optimcycle=0
794    
795    checkpoint57
796    o add horizontal bi-harmonic viscosity for vertical velocity
797      - new parameter viscA4W (defaults to viscA4)
798      - affects only non-hydrostatic code
799      - to be done: no-slip lateral boundary conditions
800    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
801    o implement Implicit Vertical advection for pTracers
802    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
803      (implemented also for implicit vertical diffusion & advection)
804    o OBCS: extend application of tracer open boundary conditions
805      to a strip beyond the boundary of width Olx/Oly
806    o add call monitor to TAF set of required calls (flow directives)
807      and include in natl_box_adjoint
808    o untangle a few ifdefs related to cost, ctrl, autodiff
809      untangel a few ALLOW_ECCO_OPTIMIZATION
810    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
811      (theta2, salt2 in ecco_cost_weights)
812    
813    checkpoint56c_post
814    o OBCS as control variables
815      - update ctrl_ad_diff.list, obcs_ad_diff.list
816      - remove balance of obcs controls from default
817      - fix index bug nobcs in ctrl_init
818      - fix dummy fields filen in ctrl_pack
819      - add dummy weights for obcs
820    o lsopt: comment out fort.94 output
821    o optim:
822      - remove unnecessary header files
823      - adjusted namelists
824      - add xerbla.F to Makefile
825    o exf:
826      - multiple modifications of exf_check_range
827      - unit change in exf_init_runoff from [m/year] to [m/s]
828    o mdsio:
829      - i/o-vector change debugLevel from debLevA to debLevB
830    
831    checkpoint56b_post
832    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
833      is called from DO_THE_MODEL_IO
834      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
835      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
836      - clean up PTRACERS_WRITE_TIMEAVE a little
837    o add another verification experiment that tests both the cfc-pkg and
838      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
839      reactive tendencies treated inline with regular timestepping
840    o testreport previously did a lousy job of comparing small numbers, so
841      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
842      implemented in the little c-progam tmp_cmpnum.c which is embedded in
843      testreport.
844    o ptracers_monitor: bug fix for MPI
845    
846    checkpoint56a_post
847    o GCHEM: finish reorganizating the package
848      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
849        (introduces another 3D-array for each passive tracer, but only if
850        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
851        gchemTendency is not needed because the timestep is done separately)
852      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
853      - GCHEM is now---more or less cleanly---separate from PTRACERS
854      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
855        so clear to me how that should be done in a general way.
856    o CFC: improve formatting of output in CFC_ATMOS
857    o PTRACERS:
858      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
859        that ALL experiments with ptracers enable can be checked. This makes
860        GCHEM_MONITOR obsolete.
861      - include a runtime parameter PTRACERS_monitorFreq that defaults to
862        monitorFreq
863      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
864    o add PTRACERS (PTR0[1-5]) to testreport output
865    o exf_check_range:
866      * default changed to .TRUE.
867      * will check values for niter0 if debLevA, every timestep if debLevB
868      * STOP in exf_check_range if 'out of range'
869      * range chosen generous to allow for potential extema
870      TBD: a version with stricter range
871           permitted range would be runtime parameters
872    o GMredi:
873      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
874      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
875      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
876    o GCHEM:
877      - move call to GCHEM_FORCING_SEP, so that it is now called before
878        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
879      - introduced a useGCHEM runtime flag and applied it everywhere.
880      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
881        this flag is now only visible within GCHEM-pkg routines.
882      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
883        be replaced by a 3D array that is computed before thermodynamics; for
884        this, the tracer ID iTracer had to be included into the parameter list
885        of ptracers_forcing
886      - set up forward_step to call gchem_forcing, that will replace
887        gchem_forcing_int in ptracers_forcing
888      - cleaning up
889    o small cleaning of exch2: remove files that are also in eesupp/src
890    
891    checkpoint56
892    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
893    o mnc: cleanup "full" files--fixes out-of-memory problem
894    o ECCO-GODAE
895      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
896      * fully merged and updated from SIO code
897        windstress sign change affects
898        - exf_inscal_[u/v]stress
899        - sign of xx_tau[u/v] adjustments
900        - signs in cost_scat
901      * ctrl_get_gen: avoid update of tau[u/v] for first few days
902      * natl_box_adjoint updated and compressed
903      * 2-level checkpoint switch added
904        (tested in EXP. 1 of natl_box_adjoint)
905      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
906    o SVD
907      * first complete, non-hacked version for SVD calculations
908      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
909        performed via direct access files admtlm_vector.it????
910        (via ctrl_[un]pack)
911      * optimcycle is used for ARPACK iteration counter
912        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
913      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
914        and add linear transforms where necessary
915      * controls are initial/final SST, SSS (can be extended; need to check
916        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
917    o mdsio: filename info to both stderr, stdout
918    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
919      from sign change
920    
921    checkpoint55j_post
922    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
923      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
924    o add consistent build directories and .cvsignore files to verification
925    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
926    o make all subroutines 30 or less characters in length for certain older
927      compilers to work (a thorough search only turns up two routines in
928      pkg/ptracers)
929    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
930      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
931    
932    checkpoint55i_post
933    o change arrays for total vertical diffusivity (2.D if explicit,
934      3.D if implicit) ; each ptracer uses its own background value.
935    o added mnc/NetCDF output capability to ocn_compon_interf
936      - added bits to verification/cpl_aim+ocn so that it can run on
937        ITRDA and other clusters without the mpirun "-wd" option
938    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
939      configuration
940    o give MNC the ability to create additional files rather than
941      exceeding a specified file size limit "MNC_MAX_FILESIZE"
942      - the default is just less than 2GB which is a practical limit
943        on many systems
944    o Compute the non-local term using either KPP vertical diffusivity (=default)
945       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
946    
947    checkpoint55h_post
948    o add verification test "vermix"
949    o remove all the *_ioinc flags and replace with the single global
950      outputTypesInclusive flag
951    o allow to set a vertical profile of vertical diffusivity for T & S
952    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
953    o useMNC moved from data.mnc to data.pkg
954    
955    checkpoint55g_post
956    o Renaming carbon AD experiments to comply with testreport conventions
957    o Updating adjoint of Held-Suarez hs94.1x64x5
958    o Fixing directives for non-ECCO forward_step, after ECCO directives
959      have been fixed to avoid recomp. of do_oceanic_phys
960      Works well for global_ocean.90x40x15,
961      but recomp. issue remains for carbon
962    o Updating adjoint output for natl_box_adjoint after
963      pkg/ecco has been modified (see taga c55d_post)
964    
965    checkpoint55f_post
966    o rename to timeave_init_fixed
967    
968    checkpoint55e_post
969    o some delicate re-shuffle of store directives to avoid one
970      extra call of do_oceanic_physics
971      affects ecco_the_main_loop.F, do_oceanic_physics.F
972      checkpoint_lev1_directives.h
973    o NB: this may break global_ocean adjoint temporarily,
974      but it is clear how to fix it. Will do later, need this now.
975    
976    checkpoint55d_post
977    o ECCO specific cost function terms (up-to-date with 1x1 runs)
978    o ecco_cost_weights is modified to 1x1 runs
979    o modifs to allow observations to be read in as
980      single file or yearly files
981    o enable to read exf forcing fields as either
982      single file or yearly files (flag useExfYearlyFields)
983    checkpoint55d_pre
984    
985    o switch between 2-level and 3-level checkpointing
986    o add ability of MNC to write local and "partial" (eg. 2D slices where
987      the full 3D field is never actually stored) arrays to NetCDF files
988      with the correct (that is, the complete multi-dimensional) set of
989      array indicies
990      - used in mom_vecinv() to write the diagFreq output
991      - tested (demonstrated) in verification/aim.5l_cs
992    o further mnc-ification
993      - add verification/lab_sea to the list with mnc setups
994      - fix undefined mnc v-names in cd_code
995      - add kpp to mnc output (both snapshot and timeave)
996    o non-hydrostatic code
997      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
998        in calc_gw.F
999      - defaults to viscAh
1000      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1001        friction or Leith) in non-hydrostatic mode, as long as there is
1002        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1003    o pkg/cost
1004      extend simple cost functions to treat time mean quantities
1005      (T,U,V) via cost_accumulate_state from cost_tile
1006    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1007        be 2 times larger than the minimum size the advection scheme requires.
1008        now get a perfect conservation of salt in advect_cs test-exp (updated)
1009    o GGL90 (Gaspar's TKE mixed layer)
1010      - add horizontal diffusion of TKE, requires exchanges in
1011        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1012        default. In OPA there is no horizontal diffusion of TKE but the
1013        mixing coefficients are computed from a horizontal average of TKE of
1014        6 points or so. I think that diffusion has a little more physical
1015        justification.
1016      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1017        was in vain)
1018      - mask tke-variable in ggl90_init
1019    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1020    o fix biharmonic diffusion on CS-grid.
1021    o more obcs stuff
1022      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1023        for reading boundary values. This routine is called from
1024        obcs_prescribe_read
1025      - updated obcs_check
1026      - changed sponge layer relaxation parameter units for days to seconds
1027      - turned off sponge layer by default
1028      - changed argument list of OBCS_CALC to myTime+deltaTclock
1029      - fixed about 35 bugs in obcs_external_fields_load
1030    
1031    checkpoint55c_post
1032    o obcs stuff
1033      - new runtime flags useOBCSprescribe, useOBCSbalance
1034      - re-arranged obcs_calc
1035      - moved exf_getobcs to obcs_prescibe_read
1036        obcs_prescibe_read is called after ORLANSKI stuff
1037        and independent of it (executable can contain all).
1038      - updated obcs_check
1039      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1040        These may be necessary only if tangential velocities are
1041        prescribed at OB, not sure, needs testing.
1042    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1043      which simplifies the calls and passes the ifc check-bounds test
1044    
1045    checkpoint55b_post
1046    o add a 2D scalar, Z location, exchange_2 routine.
1047    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1048      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1049      affects advect_cs results (for the wrong reason): update output.txt
1050    o use a more standard discretization for biharmonic viscosity ;
1051     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1052      affects results of dome set-up: update output.txt
1053    o fix gad_advection.F (CubedSphere part), back to version 1.23
1054    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1055    
1056    checkpoint55a_post
1057    o merged code to
1058      * prescribe/read time-dependent open boundaries
1059        (works in conjunction with exf, cal)
1060      * sponge layer code for open boundaries
1061      * each boundary N/S/E/W now has its own CPP option
1062        (healthy for the adjoint)
1063    
1064    checkpoint55
1065    o up-to-date adjoint of previous breaks
1066      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1067      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1068      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1069      - carbon: * remove tr1-related adjoint verification
1070                * add ptracer as control variable
1071    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1072      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1073    
1074    checkpoint54f_post
1075    o in verification/carbin/ remove experiment related to
1076      ALLOW_PASSIVE_TRACER (array tr1 etc)
1077      code_ad/ input_ad/ results_ad
1078    
1079    o add two new packages
1080      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1081        + subject to optimization (memory)
1082      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1083        + subject to reordering (many GOTOs in the original code)
1084        + so far opps is called for every (i,j) point, and then operates in
1085          the vertical; one may want to reorder the scheme in order operate in
1086          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1087          fields)
1088    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1089      - all verification tests compile and run with linux_ia32_g77
1090      - defaults are compatible with current input files--nothing
1091        should change if you were not previously using MNC
1092      - MNC output has been added in numerous places (eg. timeave)
1093        but there are still a few writes not yet do-able with MNC
1094        (this is in progress)
1095      - flags now allow for either/or/both use of MDSIO and MNC and
1096        documentation will soon follow
1097      - numerous small formatting cleanups for ProTeX
1098    o add version info (via BUILD_INFO.h) to MNC and stdout
1099    
1100    checkpoint54e_post
1101    o add two new packages
1102      - pp81 (Packanowski and Philander, 1981), Richardson number and
1103        stratification dependent mixing
1104      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1105      - these scheme operate in a similar manner as KPP (without ghat, of
1106        course), however there is only one diffusivity that is used for both
1107        temperature and salinity (and passive tracers)ç
1108    o add offline package
1109    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1110      provided by Stephanie Dutkiewicz
1111    o genmake2: add ability to search for C compilers and cleanup test output
1112      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1113    
1114    checkpoint54d_post
1115    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1116    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1117      leading to additional shift by 5 days each year of integration
1118       (i.e. leading to considerable offset over the years)
1119    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1120    o start with no AB and no initial filtering (staggerTimeStep):
1121      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1122    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1123      (external loading & cpl import/export stay in forward_step.F)
1124    o update coupling interface to work with new staggerTimeStep
1125    o change MDSIO ptracers_pickup.
1126    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1127    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1128    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1129    
1130    checkpoint54c_post
1131    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1132      this affects (truncation error) output.txt of test-exp:
1133       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1134    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1135    o change Qnet to always be the net heat flux, (+upward).
1136      affects (truncation error) output of natl_box exp.: updated
1137    o define the max number of passive tracers in PTRACERS_SIZE.h
1138    o start to test mnc routinely in exp0
1139    o add sea-ice loading (sIceLoad) as a new forcing field.
1140    
1141    checkpoint54b_post
1142    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1143       impressive on Altix and Opteron systems)
1144    o diagnostics can now write NetCDF files through the mnc package
1145    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1146    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1147    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1148      affects (truncation error) output of lab_sea & natl_box exp.: updated
1149    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1150    
1151    checkpoint54a_post
1152    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1153    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1154    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1155    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1156      + internal_wave (shift in writing cg2d_ini_res)
1157    checkpoint54a_pre
1158    
1159    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1160      - modified verification/lab_sea and natl_box_adjoint accordingly
1161    
1162    checkpoint54
1163    checkpoint53g_post
1164    o prepare splitting of thermodynamics: store convect.counter in common block
1165    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1166      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1167    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1168    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1169    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1170    o restore adjointability
1171    
1172    checkpoint53f_post
1173    o modifications that affect AIM experiment results (update output.txt):
1174      - no advection of S at top interface Nr (pkg/generic_advdiff)
1175      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1176    o AIM pkg:
1177      - include stability function into surf.Flux derivative relative to Tsurf
1178      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1179    
1180    checkpoint53e_post
1181    o merged cylindrical coord configuration
1182    o added rotating_tank experiment
1183    checkpoint53e_pre
1184    
1185    checkpoint53d_post
1186    o faulks upgraded: re-generate output.txt that have changed:
1187       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1188    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1189    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1190    o added Sadourny discretization of Coriolis
1191      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1192      - re-enabled use of omega3 (useAbsVorticity)
1193    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1194      vector-invariant equations
1195      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1196    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1197      hopefully without new bugs
1198      - still to do: biharmonic friction for non-hydrostatic w
1199    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1200    o regenerated output for global_ocean_ebm (using -ieee)
1201    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1202      of mom_common/
1203      - simple re-arrangement of instructions within computing loop
1204    checkpoint53d_pre
1205    
1206    checkpoint53c_post
1207    o new version of coupler for AIM+thSIce and Ocean models
1208     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1209     - land: change Evaporation of snow
1210     - aim with thSIce: fix bug in snow-precip.
1211    o changes to calc_gw.F
1212     - bug fix for w^2 term near the bottom boundary
1213     - (hopefully) improve the lateral slip boundary condtions for use with
1214        partial/looped cells
1215      - because the bug fix changes two verification experiments anyway (exp5
1216        and plume on slope), change the lateral boundary condition from half slip
1217        to the value of no_slip_sides
1218    o ebm package wasnt quite up to the parallel task. Fixed that.
1219    o Adjoint of EBM package + verification
1220      * TLM OK
1221      * ADM not sufficient accuracy yet (needs further testing)
1222    
1223    checkpoint53b_post
1224    o Commiting new energy balance model to repository
1225      * package is pkg/ebm
1226      * verif. is verification/global_ocean_ebm
1227      * references are in ebm_driver.F
1228    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1229    C        Global thermohaline circulation. Part I:
1230    C        Sensitivity to atmospheric moisture transport.
1231    C        J. Climate 12(1), 71-82
1232    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1233    C        Global thermohaline circulation. Part II:
1234    C        Sensitivity with interactive transport.
1235    C        J. Climate 12(1), 83-91
1236    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1237    C        Destabilization of the thermohaline circulation
1238    C        by atmospheric eddy transports.
1239    C        J. Climate 7(12), 1870-1882
1240    o Will need long integration testing.
1241    checkpoint53b_pre
1242    
1243    o created pkg/mom_common in preparation for variable viscosity code
1244    o renamed and split ini_mnc_io
1245    o pkg/land: only liquid water can diffuse or run-off
1246    o AIM using land: soil wetness availability account for snow
1247    o added printMapIncludesZeros to EEPARMS namelist
1248    
1249    checkpoint53a_post
1250    o restore TAMC compatiility for exf_constants.h
1251      (no usage of _d in .h)
1252    o Additional storing in KPP in an attempt to fix
1253      TAMC problem with adjoint of KPP code.
1254      (no success...)
1255      Identical code works fine with TAF.
1256    o Fixed verification/natl_box_adjoint experiments.
1257      Initial conditions for Experiments 4 and 5 are now
1258      set to "SEAICE_initialHEFF=0", which is more reasonable,
1259      and hence gives results closer to that of Experiment 2.
1260      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1261    
1262    checkpoint53
1263    o stable checkpoint with up to date adjoint
1264      TLM tests only run for 1st grdchk at the moment. Its unclear if
1265      this is a code problem or a problem with resetting code for g_
1266      variables that is being autogenerated wrong.
1267      Otherwise:
1268       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1269       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1270         are both still in chaos following their security messes.
1271    
1272    checkpoint52n_post
1273    o various build (mostly genmake2) changes including:
1274      - ability to build/run more easily within Cygwin and MacOS X
1275      - more complicated Makefiles with a stronger dependence on Gnu Make
1276  o pkg/seaice modifications  o pkg/seaice modifications
1277      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1278        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1279        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1280    - changed proxy for geostrophic velocity and updated    - changed proxy for geostrophic velocity and updated
1281      verification/lab_sea/results/* accordingly      verification/lab_sea/results/* accordingly
1282    - removed ADI dynamic solver from pkg/seaice    - removed ADI dynamic solver from pkg/seaice

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