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revision 1.256 by adcroft, Mon Feb 23 18:57:48 2004 UTC revision 1.657 by jmc, Wed May 17 00:02:22 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    checkpoint58e_post
8    o SEAICE_CGRID adjoint done
9    o R_STAR adjoint implemented.
10      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
11      * need to sort out init. of h0facc, etc.
12    o Make pkg/profile fully independent of ecco,cost, etc. stuff
13      to be able to use it in pure forward.
14    
15    checkpoint58d_post
16    o upgrade simple test-experiment to tutorial example:
17     step.1: duplicate the experiment and (step.2) will remove the old copy.
18      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
19      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
20      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
21      tutorial_global_oce_biogeo    <- copy of dic_example
22      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
23      tutorial_plume_on_slope       <- copy of plume_on_slope
24      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
25      tutorial_global_oce_optim     <- empty for now (David ?)
26      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
27     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
28    o correct a sign problem in cost_scat.F
29    o obcs and ptracers: fix boundary conditions for advections schemes
30      with larger stencil
31    o thsice adjoint: start
32    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
33      completeness
34    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
35      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
36    o ptracers adjoint:
37      * avoid extensive recomputatations
38      * fix missing re-init. of gptr (missed by TAF)
39    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
40      me to turn off the excessive output to STDOUT that this package produces
41    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
42      and add those terms in Vector-Invariant formulation.
43    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
44      if the control period (xx_hfluxperiod etc) is 0
45    o in profiles pkg, clean routines and fix details
46    o in ecco pkg, reading ssh data:
47      fix problem in case the model does not start at iter0=0
48    o fix mnc-pickup/restart for ptracers
49    o new package prifiles:
50      code to compute profile-based cost by Gael Forget
51      (modifs in ecco, ctrl, autodiff)
52    o Benign bug fix in initialization (spotted by M. Mazloff) of
53      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
54    
55    checkpoint58c_post
56    o adjoint: finish NLFS adjoint and provide reference output in
57      verification/global_ocean.90x40x15/results_ad_nlfs
58    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
59      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
60      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
61      with SEAICE_CGRID defined.
62    o move calendarDumps from "data" to "data.cal" and clean-up the code
63      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
64    o add useEXF & useCAL flags (for now, set in hard-coded way)
65    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
66      (were missing in NH mode, and wrong in quasihydrostatic mode).
67      waiting for Chris updated version of calc_gw to add those CALLs.
68    o fix bug in quasihydrostatic S/R ;
69      add a test for this option: global_ocean.90x40x15.qshyd
70    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
71      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
72    o add on/off flag useOffLine for package OFFLINE
73    o seaice:
74      - modify advection so that it works also on the C-grid
75      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
76        problem in multi-tile runs with C-grid
77      - add flags for clipping ice velocities and/or masking solver forcing
78      - fix drag (ocean on ice) formulation and a bug that caused noise in the
79        C-grid solver
80      - added a few comments to seaice_diffusion.F
81      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
82        are now exclusive)
83      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
84        required re-ordering the code a little:
85       + make DAIRN global variable (defined in SEAICE)
86       + move computation of the viscosities eta and zeta into a new separate
87         routine (because I need to recompute them in seaice_ocean_stress.F)
88    
89    checkpoint58b_post
90    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
91      update output.txt of exp. aim.5l_cs.thSI
92    o various mnc cleanups and improvements:
93      + shrink lookup tables by factor of ~4
94      + better error reporting when running out of lookup space
95      + able to handle longer path/file names (up to 500 chars)
96    o adjoint:
97      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
98      - TBD: "hidden" mom_vecinv recomp. in dynamics
99    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
100     (allow to differentiate between forcing components using new integer flags:
101      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
102     and add new flag to put Dissipation tendency out of Adams-Bashforth.
103    o ecco
104      - enable trend removal from SSH anomaly obs.
105    o adjoint
106      - a fix for PmEpR when #undef EXACT_CONSERV
107      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
108      - try to fix "hidden" recomp. in forward_step for NLFS
109        (NLFS seems broken sometimes after I checked it in)
110    o seaice:
111     - add c-grid version of the dynamic solver:
112       + three new routines that are the c-grid substitute lsr, dynsolver
113         and ostres
114       + put a few fields that were local to dynsolver into global common
115         blocks, so that I can move the computation of stresses etc into
116         seaice_lsr (saves coding but may break the adjoint).
117     - replace more hardwired parameters by runtime parameters
118     - add ice masks that mask the rhs of the implicit solvers where there
119       is no ice (commented out in seaice_dynsolver, because i am not sure
120       if this works properly), eventually this should replace the clipping
121       of ice velocities in seaice_dynsolver to +/-40cm/s.
122    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
123      include it only where its needed
124    o move balancing of fluxes before the call of external_forcing_surf
125    o seaice:
126      - correct units of turning angles (now they are really in degrees)
127      - move computation of GWATX/Y out of main routine into dynsolver
128      - initialize GWATX/Y in seaice_init
129    o Apply mask on Fresh-Water flux (needed for SSH forcing).
130      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
131    o seaice: add runtime flags for turning angles (default to zero)
132    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
133      and trend from exf forcing and ctrl control adjustments
134    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
135      (since checkpoint57x_post)
136    o change the default rotation period to 86164.s = the Earth rotation
137    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
138      and based on a reference stratification. Tested within hs94.cs-32x32x5.
139    o seaice advection: add code for choosing between the default (2nd order
140      central differences) and multiDim advection schemes provided by
141      pkg/generic_advdiff
142    o seaice:
143      - removed all references to SEAICE_GRID.h fields from
144        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
145        (cubed-sphere configuration will change a little)
146      - grid computations in seaice_init are obsolete now.
147      - cleaned up code a little so that is easier to read (hopefully).
148      - added new (better?) discretizations of default advection and diffusion
149        (turn on with SEAICEuseFluxForm)
150      - replace 1 in 3d global fields by kSurface in growth.F
151      
152    checkpoint58a_post
153    o seaice:
154      - bug fix in advect.F
155    o shelfice:
156      - separate shelfice load anomaly from pload (breaks with time
157        dependent forcing), => introduce constant field shelficeLoadAnomaly.
158        Its default is 0., but it may be computed more cleverly from (unknown)
159        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
160        done offline. A good approximation of the pressure load anomaly is
161        necessary to avoid large initial adjustment processes underneath
162        deep-reaching shelfice.
163      - small fix in ISOMIP shelfice_thermodynamics
164      - add more sophisticated thermodynamics of Hellmer (1989), this is
165        now the default
166      - give a few constants more intuitive names
167    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
168      if bulk formulae are used in long integration (especially EmPmR). Turn
169      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
170      if balancePrintMean, the imbalance that is substracted is printed to
171      STDOUT.
172    o fix bug (typo) in obcs_apply_eta.F
173    o add a new package shelfice which enables us to model the circulation
174      underneath shelf-ice with draughts of hundreds of meters.
175     - works
176     - to do: + include improved thermodynamics
177              + check whether kSurfC (from model/inc/SURFACE.h) can be used
178                instead of new field kTopC
179              + can we use topoFile, Ro_surf and existing code in ini_depth.F
180                instead of new field R_shelfIce and new code in ini_depth.F
181                and ini_mask_etc.F?
182              + adjust vertical mixing schemes?
183    o seaice pkg:
184     - add a cpp-flag to include a simple formula for a salinity dependent
185       freezing point of sea water at the surface
186     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
187       meridional stresses are now different (and hopefully correct)
188    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
189       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
190       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
191    o pkg/diagnostics: add options and parameters for regional-statistics
192       diagnostics ; define regions by reading a region-mask from a file
193       (might add other options later)
194    o pkg/bulk_force:
195     - add option and parameters to use AIM surface-flux formulae.
196     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
197       others forcing fields (defined in PARM05, parameter file "data") are loaded
198       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
199     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
200     - use the right EXCH call for uwind,vwind (to work on CS-grid).
201     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
202       and parameters (note: calcWindStress replaces .NOT.readwindstress).
203     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
204    
205    checkpoint58
206    o add "--embed-source" option to genmake2 which, when the supporting
207      tools can be compiled (as determined by genmake2) will turn on the
208      embed_files package which then embeds the entire MITgcm source code
209      (*.[fFhc] + Makefile) used for the build within the executable
210      - requested by CNH but off by default
211      - adds a paltry <9MB to the mitgcmuv executable in most cases
212      - only writes the output when useEMBEDSRC in eedata is true
213    o clean up 3-dim. relaxation codes:
214      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
215      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
216      * Thanks to Tom Haine for testing!
217    
218    checkpoint57z_post
219    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
220      affects output (@ truncation level) of exp. plume_on_slope ; updated.
221    o fix the pickup behavior for obcs in combination with ptracers
222    o fix a bug in ptracers_external_fields_load
223    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
224      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
225    o transfered surface NH pressure to eta field (if exactConserv).
226    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
227         and update lab_sea output.txt file.
228    o completing 3-dim. relaxation code: additional term
229         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
230      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
231      * At compile time, in "EXF_OPTIONS.h" set
232          #define  ALLOW_CLIMTEMP_RELAXATION
233          #define  ALLOW_CLIMSALT_RELAXATION
234      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
235          tauThetaClimRelax3Dim = 15552000.0,
236          tauSaltClimRelax3Dim  = 15552000.0,
237      * 3 cases:
238          1) Use a constant-in-time 3-dim. field
239          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
240          3) Real-time relax. to time-evolving prescribed field
241    o Adding Laplacian-type smoothness constraint on
242      initial and boundary (forcing) controls (ic, bc)
243      * enable at compile-time via
244        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
245      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
246      * Absolute scale somewhat unclear so far
247      * no area weighting was included since no other cost term does so far
248    
249    checkpoint57y_post
250    First step for a NLFS adjoint
251    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
252    o new init. routines for calc_r_star, calc_surf_dr
253    o still need to deal with ini_masks_etc
254    o testreport seemed happy
255    checkpoint57y_pre
256    
257    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
258    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
259    o add new offset feature to offline pkg (plus minor cleanup)
260    o cfc fixes for final year of integration
261    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
262      be in GCHEM_OPTIONS).
263    
264    checkpoint57x_post
265    o fix testreport Pb in multiple test experiment.
266    o cleanup our namelist syntax in verification:
267      - make it more F95 standards compliant (some work still needed)
268      - allows the vast majority of our tests to work with gfortran
269    o Non-Hydrostatic:
270     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
271     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
272    o Allow to apply AB on T,S rather than on AB(gT,gS):
273     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
274     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
275       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
276     - need a "clever" read_pickup to restart from the other AB formulation
277    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
278    o remove some unused variables (reduces number of compiler warnings)
279    o adjoint
280      * Disable useVariableViscosity for adjoint for time being
281        (there are a number of extensive recomputations)
282      * Initialize certain variables needed for adjoint
283    
284    checkpoint57w_post
285    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
286                 fix the singleCpuIO RS version of MDSWRITEFIELD
287       and add a WARNING if using globalFiles=T with multi-processors.
288    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
289      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
290    o tracer advection scheme:
291      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
292       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
293       was not very convenient).
294      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
295       (further tests needed for the implicit DST & Flux-Limiter schemes).
296    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
297      and sRef for convenience, handy, when you want to initialize
298      ptracers in a large domain with a constant non-zero value. Also,
299      untangle ptracers_init.F a little.
300    
301    checkpoint57v_post
302    o change dome exp. to use variable viscosity in side-drag terms.
303    o remove all the files from the cfc_offline test since they are now
304      incorporated into tutorial_cfc_offline which has been producing
305      identical results for a few days of testing
306    o add new parameter: sideDragFactor to enable half-slip-side BC
307      and change side-drag S/R to use viscosity from mom_calc_visc
308      (can switch back by setting sideDragFactor=0.); affects results at
309      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
310       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
311    o vorticity & strain are now computed without masking, to account for
312      no-slip-side BC in variable viscosity calculation ; mask is applied
313      anyway later on, before computing advection/coriolis terms.
314    o modify exp4 to test new obcs support for reading from external files
315      and for passive tracers
316    o fix behavior of ptracers_monitor when monitor output is written to a
317      netcdf-file; still not independent of monitor.F (writes in the same
318      file).
319    o change default value of tRef (put a uniform, meaningful value for ocean
320      & atmos) and initialize sRef (was missing, as Martin mentioned).
321    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
322      to be proportional to enstrophy dissipation length.  Thus,
323       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
324      This is now consistent with Smagorinsky and with the manual.
325    
326    checkpoint57u_post
327    o OBCS and PTRACERS: add open boundary support for passive tracers
328      - either use homogenous (pseudo) v.Neumann conditions or prescribe
329        OB-values from file; this is not different from the way theta and salinity
330        are treated
331      - however, Orlanski-radiation conditions are not supported, and the model
332        will stop if you use pTracers and Orlanski at the same time.
333      - beefed up the rountine obcs_external_fields_load: now only those open
334        boundary values are overwritten with values from files for which there
335        are really files, otherwise the OB-fields remain untouched. This makes
336        it possible to use different OBs at different ends of the domain (as
337        with EXF)
338    o reduce number of exch calls in shap_filt (s2).
339    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
340      truncation level) 4/5 MLAdjust test results (11&12 digits match).
341    
342    checkpoint57t_post
343    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
344    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
345      same truncation, independent of the face number: affects affects several
346      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
347    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
348      note that biharmonic viscosity + no-slip was not tested in any experiment.
349    o fix bug in non-linear free-surf side-drag ; generate new output for
350      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
351    o make mnc honor the writeBinaryPrec flag for most kinds of output
352    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
353    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
354      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
355    o add brackets in multi-terms sum to get same truncation, independent of
356      the face number (manage to get exactly same value of gU,gV at the cs-edge)
357      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
358    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
359      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
360      a maximum grid-scale Reynolds number.  Also, changes all length calculations
361      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
362      Suggested values of viscosity parameters found in mom_calc_visc.
363      Many new viscosity diagnostics available.
364    
365    checkpoint57s_post
366    o Add clearing-house for viscosity calculations, mom_calc_visc and
367      correct numerous bugs in LeithD and Smagorinsky discretizations.  
368      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
369      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
370      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
371      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
372      The Strain-Tension form is now called with useStrainTensonVisc=.true.
373      ViscAhStrain and viscAhTension are now retired.
374    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
375    o In response to JMC's bug report, genmake2 now ignores any soft-links
376      that it finds in the *current* directory when searching for files.
377      Soft-links found in any other source directories will still work as
378      they did before.
379    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
380      a C routine to unlimit the stack size
381    o mnc-ify pkg/aim snapshot vars
382    o mnc-ify pkg/land as requested by Daniel
383    o various changes to mnc including:
384      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
385      - output can now be grouped so that all files within a group
386          change the ITER portion of their names in lock-step together
387      - can now read ("global") PER-FACE (in addition to PER-TILE) files
388          and works with both EXCH1 and EXCH2 (but needs more testing)
389      - writing works for all verification test cases w/ g77 on Linux
390    
391    checkpoint57r_post
392    o make MNC variable initialization happen earlier
393    o add diagnostics for (almost) each term of the momentum Eq.
394    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
395    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
396    o remove MINIMAL_TAVE_OUTPUT option ;
397      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
398    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
399      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
400    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
401    o add time-dependent SST, SSS control
402    o cost terms in ecco/ modularized (new cost_generic.F)
403    o cost_averages routines are modularized (new cost_averagesgeneric.F)
404    o new infrastructure for seaice model vs. obs misfits in seaice/
405      * driver from the_main_loop.F is seaice_cost_driver.F
406      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
407      * gradient check in Exp. 6a of natl_box_adjoint/
408    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
409      (see README file)
410    
411    checkpoint57q_post
412    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
413    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
414      - bug was reported by Jean-Michel and Ian Fenty
415    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
416      update exp. cpl_aim+ocn output.
417    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
418      Needed for high-res. runs with large global files
419      to be able to limit tapelev size
420    o Changed some tests for adjoint:
421      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
422      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
423      * global_ocean.90x40x15/ back to default 3-level checkpointing
424    o Modifications to enable scripted COMMON to MODULE conversion
425      * verification/OpenAD/code/ has necessary scripts and description;
426      * converts, compiles and runs successfully;
427    
428    checkpoint57p_post
429    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
430    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
431      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
432    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
433    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
434      (was already the case for dissipation with mom_vecinv,
435       and also the case for grad.PhiHyd when staggered-timeStep)
436      This will allow to put dissipation out-off the AB time-stepping.
437     Unfortunately, affects truncation error. Update output of exp. that "fails"
438      (cg2d matching number) and leave the others for later: front_relax(10),
439      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
440      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
441    
442    checkpoint57o_post
443    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
444      (2) its ready to be documented during the 20050801 DocFest
445    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
446      for ideal_2D_oce and lab_sea on linux_ia32_g77
447    o set to #undef CTRL_SET_OLD_MAXCVARS_30
448      in global1x1_tot/code_seaice_adj to access indices 32, 33
449      (worth another tag)
450    
451    checkpoint57n_post
452    o adding precip control xx_precip 32
453    o adding swflux control xx_swflux 33
454    o Replacing 10 forcing penalty cost routines by 1 generic.
455    o Implementing partitioning in time-mean and variable adjustment
456      for atmos. state.
457    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
458    o in natl_box_adjoint:
459      * updated exp 1 to 10
460        (but does not have time-mean vs. variable split results yet)
461    o updated global1x1/*_seaice_adj/
462      to incorporate latest changes
463    o enable useSingleCpuIO for mdsio vector routines
464      (applies in particular to tapelev I/O)
465    o removed inefficient K-loop in all active_file*control*.F
466    
467    checkpoint57m_post
468    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
469      and advect_cs (use EXCH-2 and standard cs-32 grid files).
470    o pkg/exch2: filling of face-corner halo regions is optional
471      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
472    
473    checkpoint57l_post
474     tag before updating tutorials (pre-release-2)
475    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
476       for output and interpolation of input fields onto model grid)
477    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
478       Affects results of exp. rotating_tank ; update output.txt.
479    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
480          and taking the square quantity and/or using a fraction-weight field.
481    o fix aim_diagnostics_init.F mate numbers.
482    o add mnc output capability to diagnostics/diagstat and update
483      our cvsignore files for the ACSII output generated
484    
485    checkpoint57k_post
486    o lab_sea now uses diagnostics package and provides a suite of
487      new EXF diagnostics output.
488    
489    checkpoint57j_post
490    o exf
491      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
492        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
493        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
494      * extended diagnostics output
495        - now includes all EXF variables
496        - hs, hl moved to common block
497        - separate S/R for diagnostics, called after ctrl vector is added
498        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
499        - EXFqnet contains true Qnet (i.e. includes qsw)
500      * updated verif. lab_sea, global_with_exf
501      * Rearranging hflux (exf_mapfields -> exf_getforcing)
502        to ensure that diagnostics sees a true EXFqnet
503    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
504    o diagnostics pkg: change pointers so that 1 diagnostic can be used
505      several times with different frequencies.
506    o mnc-ify the thsice package as requested by Daniel Enderton
507      - the monitor--MNC output needs work
508      - many attributes need to be added (most are currently blank)
509    o mnc-ify theaim_v23 package as requested by Daniel Enderton
510      - many attributes need to be added (most are currently blank)
511    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
512    o add Sadourny like discretization to the 4th.O vorticity advection scheme
513    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
514      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
515         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
516    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
517     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
518    
519    checkpoint57i_post
520    o Diagnostics package was changed: diagnostic allocation is now deactivated
521      by setting an empty file name in the namelist (used to be by setting 0 frequency)
522    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
523      add 1rst Order upwind vertical Shear.
524    o add a quick fix for A/B checkpointing in OFFLINE mode
525    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
526      end-run around the C/Fortran linking horror in eesup/src/timers.F
527    o added pkg/runclock: allows user to terminate run based on wall clock
528    o added non-hydrostatic scaling parameter: nh_am2
529    o pkg/my82: futile attempt to make results compiler-independent by adding
530      some "_d 0", etc. no effect.
531    o for mnc output, fill the 'T' coordinate var with myTime and create a
532      separate 'iter' variable for iteration count
533    o pkg/diagnostics:
534      add new capability: output of Global/Regional & per-level statistics ;
535      tested against monitor output (including land & thSIce) on various exp.
536    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
537    
538    checkpoint57h_done
539      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
540      data.diagnostics, data.gchem, data.ptracers) is done.
541    
542    o pkg/diagnostics: prepare for Global/Regional statistics.
543      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
544    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
545      and rename it: DIFFERENT_MULTIPLE
546    
547    checkpoint57h_post
548    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
549    o pkg/diagnostics: change output frequency, now in seconds (instead
550      of Nb of iterations). This requires to change data.diagnostics.
551    checkpoint57h_pre
552    
553    o in mnc, let the user create the output dir if both mnc_outdir_date
554      and mnc_outdir_num are false
555    o add fflags() to pkg/diagnostics which allows one to specify, on a
556      per-file basis, the file precision [default behavior is unchanged]
557    o added diagnostics to pkg/kpp, including computation of mixed layer
558      depth based on a temperature/density criterion
559    o updated verification/natl_box to test the new pkg/kpp diagnostics
560    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
561    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
562    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
563      not mnc -- this mistake was found by JMC and is now corrected
564    
565    checkpoint57g_post
566    o add Adams-Bashforth 3rd Order time stepping:
567      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
568      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
569    checkpoint57g_pre
570    
571    o make lambda[Theta,Salt]ClimRelax spatially varying
572      (default remains spatially uniform constant based on tau)
573    o added new control variables
574      * init. uVel, vVel, etanN
575      * lambda[Theta,Salt]ClimRelax
576    o separate masks used for ctrl_pack/unpack 'from write_grid' output
577      (suggested by G. Forget)
578    
579    checkpoint57f_post
580    o add parameter "baseTime" = model base time = time at iteration zero
581      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
582      account for baseTime shift
583    o move Coriolis arrays from PARAMS.h to GRID.h
584    checkpoint57f_pre
585    
586    o mnc-ifying the seaice package
587    o introduced an alternative length scale calculation for use in the limiting
588      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
589    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
590    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
591      as well as grad(vort3).  Made it compatible with both approximate form
592      for the cubed sphere and full form of these gradients.  Added flag
593      useFullLeith to select between approximate and full form.  
594    o add "d0" in getcon.F to reduce differences between compilers/platforms
595      update output.txt of exp. fizhi-gridalt-hs
596    o change port_rand funtion to allow to set the seed.
597    o fix obscure MNC bug involving conversion between reals and integers
598      - it caused no problems with certain (eg. gcc, ifc) compilers but the
599        new version is now more standards-compliant
600    o adjoint-related modifications
601      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
602      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
603      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
604    
605    checkpoint57e_post
606    o Adding eddy stress controls a la Ferreira et al.
607    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
608    
609    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
610      update output.txt of exp. fizhi-gridalt-hs
611    o add more "Z" dimensions and associated coordinate vars to MNC
612    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
613    o parameter calendarDumps: when set, approximate months (30-31 days) and years
614      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
615      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
616      months and years.  Requires pkg/cal.
617    o diagnostics: add pickup functionality
618      - off by default for backwards compatibility
619      - current version only uses MDSIO -- MNC will be added
620    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
621    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
622    
623    checkpoint57d_post
624    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
625    o modify verification/ideal_2D_oce so that it tests the creation of mnc
626      output from the diagnostics package
627    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
628    o make genmake2 more portable by using ".$FS" instead of ".f" for more
629      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
630    o add coordinate variables to the MNC output from the diagnostics package
631    o change MNC-flags default value: true when useMNC=TRUE
632    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
633      the ability (off by default) to read the grid information using MNC
634    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
635    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
636    o do snap-shot diagnostics at the middle of the time-interval (instead of
637      at the end).
638    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
639      new test for AIM with thSIce + slab-ocean
640    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
641    o move state variable diagnostics to the beginning of the time step ;
642      (note: still needs some work specially for snap-shot diagnostics)
643      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
644    
645    checkpoint57c_post
646    o Change testing option (-ieee) to get closer agreement between g77 & ifort
647    o generate new output.txt files on faulks with g77 & the new -ieee option
648    checkpoint57c_pre
649    
650    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
651      update output.txt of exp. global_ocean.90x40x15
652    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
653      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
654    o add saltFlux(+File) forcing capability with periodicExternalForcing
655    o allow to use pkg diagnostics for GM-Redi & ThSIce output
656    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
657    o improvements for the MNC output from DIAGNOSTICS:
658      - correct handling of the unlimitied dimension
659      - all dims now have associated coordinate variables
660      - variables located at U, V, and Corner ("Z") points are now written
661        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
662        *all* data points are output
663    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
664    o added pkg/seaice/seaice_monitor.F
665    o mdsio_readfield.F can now read files visible only to master MPI process.
666    o pkg/seaice: some test code for ice-modified ocean stress
667    o exf_getffields interpolation defaults to bilinear for all scalar forcing
668      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
669      spurious negative numbers for precipitation and humidity.  Will cause
670      some small numerical differences for integrations using pkg/exf/exf_interp.F.
671    o pkg/ctrl/
672      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
673        May be enabled via doPackDiag
674      *  introduce z-scaling of
675         + gradient (doZscalePack) and
676         + control (doZscaleUnpack)
677    o pkg/mdsio/
678      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
679      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
680    
681    checkpoint57b_post
682    o simplify options in diagnostics_fill arguments (remove weird combinations)
683    o fix MNC coordinate variables so that they now contain per-face index
684      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
685      general, EXCH2 grids are only aligned to a "local" coordinate system
686    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
687    o Implement instantaneous output within pkg diagnostics:
688      setting a negative frequency in data.diagnostics produces
689     "snap-shot" output (as opposed to time-average if freq > 0)
690    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
691      NOTE: change ptracer diagnostics name: use 2 characters to work with
692            more than 9 tracers. Add also diagnostics of advect & diffus flux.
693    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
694      becomes the coordinate variable for the 'T' dimension
695    o add CF-style coordinate variables to MNC
696      - just a first cut:  numbers are meaningless on the cubesphere and
697        missing along the T axis but otherwise it works!
698    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
699    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
700    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
701      this is based directly on what the model compute, so that the content of
702      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
703    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
704    o clean up build options files for SunOS, in particular
705      - remove -traditional from xmakedepend
706      - change -xarch=v9 to -xarch=native for f77
707      - restore use of make (not gmake)
708      - add CC=gcc if using g77
709    o changes per discussion of AM, JMC, & EH3 today:
710      - move redundant "grid" variables out of "state" -- in preparation of
711        creating proper CF-style coordinate variables and in recognition
712        that any/all grid variables can be easily copied (eg. w/NCO) from
713        the grid files into any of the other NetCDF files
714      - *always* output grid variables with MDSIO (this will eventually be
715        changed)
716      - output MNC grid file if useMNC is true
717    o every instance of _END_MASTER() has been found and replaced with
718      _END_MASTER( myThid ) in order to satisfy certain picky Sun
719      preprocessors
720    o re-arrange diagnostics pkg initialisation:
721     - allow each package to extend the available diagnostics list
722     - add some checking and fix small problems (multi-threaded, ...)
723     - new S/R diagnostics_fill (replace fill_diagnostics):
724       look through the short list of active diag. (instead of the long list)
725       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
726    
727    checkpoint57a_post
728    o this set of changes restores TAMC compatibility
729      tested for global_ocean.90x40x15 adjoint on trough
730      (what a pain)
731    
732    checkpoint57a_pre
733    o some modifs in tools/build_options for sunos
734    o call ctrl_pack for ctrl at end for optimcycle=0
735    
736    checkpoint57
737    o add horizontal bi-harmonic viscosity for vertical velocity
738      - new parameter viscA4W (defaults to viscA4)
739      - affects only non-hydrostatic code
740      - to be done: no-slip lateral boundary conditions
741    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
742    o implement Implicit Vertical advection for pTracers
743    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
744      (implemented also for implicit vertical diffusion & advection)
745    o OBCS: extend application of tracer open boundary conditions
746      to a strip beyond the boundary of width Olx/Oly
747    o add call monitor to TAF set of required calls (flow directives)
748      and include in natl_box_adjoint
749    o untangle a few ifdefs related to cost, ctrl, autodiff
750      untangel a few ALLOW_ECCO_OPTIMIZATION
751    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
752      (theta2, salt2 in ecco_cost_weights)
753    
754    checkpoint56c_post
755    o OBCS as control variables
756      - update ctrl_ad_diff.list, obcs_ad_diff.list
757      - remove balance of obcs controls from default
758      - fix index bug nobcs in ctrl_init
759      - fix dummy fields filen in ctrl_pack
760      - add dummy weights for obcs
761    o lsopt: comment out fort.94 output
762    o optim:
763      - remove unnecessary header files
764      - adjusted namelists
765      - add xerbla.F to Makefile
766    o exf:
767      - multiple modifications of exf_check_range
768      - unit change in exf_init_runoff from [m/year] to [m/s]
769    o mdsio:
770      - i/o-vector change debugLevel from debLevA to debLevB
771    
772    checkpoint56b_post
773    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
774      is called from DO_THE_MODEL_IO
775      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
776      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
777      - clean up PTRACERS_WRITE_TIMEAVE a little
778    o add another verification experiment that tests both the cfc-pkg and
779      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
780      reactive tendencies treated inline with regular timestepping
781    o testreport previously did a lousy job of comparing small numbers, so
782      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
783      implemented in the little c-progam tmp_cmpnum.c which is embedded in
784      testreport.
785    o ptracers_monitor: bug fix for MPI
786    
787    checkpoint56a_post
788    o GCHEM: finish reorganizating the package
789      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
790        (introduces another 3D-array for each passive tracer, but only if
791        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
792        gchemTendency is not needed because the timestep is done separately)
793      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
794      - GCHEM is now---more or less cleanly---separate from PTRACERS
795      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
796        so clear to me how that should be done in a general way.
797    o CFC: improve formatting of output in CFC_ATMOS
798    o PTRACERS:
799      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
800        that ALL experiments with ptracers enable can be checked. This makes
801        GCHEM_MONITOR obsolete.
802      - include a runtime parameter PTRACERS_monitorFreq that defaults to
803        monitorFreq
804      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
805    o add PTRACERS (PTR0[1-5]) to testreport output
806    o exf_check_range:
807      * default changed to .TRUE.
808      * will check values for niter0 if debLevA, every timestep if debLevB
809      * STOP in exf_check_range if 'out of range'
810      * range chosen generous to allow for potential extema
811      TBD: a version with stricter range
812           permitted range would be runtime parameters
813    o GMredi:
814      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
815      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
816      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
817    o GCHEM:
818      - move call to GCHEM_FORCING_SEP, so that it is now called before
819        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
820      - introduced a useGCHEM runtime flag and applied it everywhere.
821      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
822        this flag is now only visible within GCHEM-pkg routines.
823      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
824        be replaced by a 3D array that is computed before thermodynamics; for
825        this, the tracer ID iTracer had to be included into the parameter list
826        of ptracers_forcing
827      - set up forward_step to call gchem_forcing, that will replace
828        gchem_forcing_int in ptracers_forcing
829      - cleaning up
830    o small cleaning of exch2: remove files that are also in eesupp/src
831    
832    checkpoint56
833    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
834    o mnc: cleanup "full" files--fixes out-of-memory problem
835    o ECCO-GODAE
836      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
837      * fully merged and updated from SIO code
838        windstress sign change affects
839        - exf_inscal_[u/v]stress
840        - sign of xx_tau[u/v] adjustments
841        - signs in cost_scat
842      * ctrl_get_gen: avoid update of tau[u/v] for first few days
843      * natl_box_adjoint updated and compressed
844      * 2-level checkpoint switch added
845        (tested in EXP. 1 of natl_box_adjoint)
846      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
847    o SVD
848      * first complete, non-hacked version for SVD calculations
849      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
850        performed via direct access files admtlm_vector.it????
851        (via ctrl_[un]pack)
852      * optimcycle is used for ARPACK iteration counter
853        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
854      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
855        and add linear transforms where necessary
856      * controls are initial/final SST, SSS (can be extended; need to check
857        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
858    o mdsio: filename info to both stderr, stdout
859    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
860      from sign change
861    
862    checkpoint55j_post
863    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
864      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
865    o add consistent build directories and .cvsignore files to verification
866    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
867    o make all subroutines 30 or less characters in length for certain older
868      compilers to work (a thorough search only turns up two routines in
869      pkg/ptracers)
870    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
871      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
872    
873    checkpoint55i_post
874    o change arrays for total vertical diffusivity (2.D if explicit,
875      3.D if implicit) ; each ptracer uses its own background value.
876    o added mnc/NetCDF output capability to ocn_compon_interf
877      - added bits to verification/cpl_aim+ocn so that it can run on
878        ITRDA and other clusters without the mpirun "-wd" option
879    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
880      configuration
881    o give MNC the ability to create additional files rather than
882      exceeding a specified file size limit "MNC_MAX_FILESIZE"
883      - the default is just less than 2GB which is a practical limit
884        on many systems
885    o Compute the non-local term using either KPP vertical diffusivity (=default)
886       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
887    
888    checkpoint55h_post
889    o add verification test "vermix"
890    o remove all the *_ioinc flags and replace with the single global
891      outputTypesInclusive flag
892    o allow to set a vertical profile of vertical diffusivity for T & S
893    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
894    o useMNC moved from data.mnc to data.pkg
895    
896    checkpoint55g_post
897    o Renaming carbon AD experiments to comply with testreport conventions
898    o Updating adjoint of Held-Suarez hs94.1x64x5
899    o Fixing directives for non-ECCO forward_step, after ECCO directives
900      have been fixed to avoid recomp. of do_oceanic_phys
901      Works well for global_ocean.90x40x15,
902      but recomp. issue remains for carbon
903    o Updating adjoint output for natl_box_adjoint after
904      pkg/ecco has been modified (see taga c55d_post)
905    
906    checkpoint55f_post
907    o rename to timeave_init_fixed
908    
909    checkpoint55e_post
910    o some delicate re-shuffle of store directives to avoid one
911      extra call of do_oceanic_physics
912      affects ecco_the_main_loop.F, do_oceanic_physics.F
913      checkpoint_lev1_directives.h
914    o NB: this may break global_ocean adjoint temporarily,
915      but it is clear how to fix it. Will do later, need this now.
916    
917    checkpoint55d_post
918    o ECCO specific cost function terms (up-to-date with 1x1 runs)
919    o ecco_cost_weights is modified to 1x1 runs
920    o modifs to allow observations to be read in as
921      single file or yearly files
922    o enable to read exf forcing fields as either
923      single file or yearly files (flag useExfYearlyFields)
924    checkpoint55d_pre
925    
926    o switch between 2-level and 3-level checkpointing
927    o add ability of MNC to write local and "partial" (eg. 2D slices where
928      the full 3D field is never actually stored) arrays to NetCDF files
929      with the correct (that is, the complete multi-dimensional) set of
930      array indicies
931      - used in mom_vecinv() to write the diagFreq output
932      - tested (demonstrated) in verification/aim.5l_cs
933    o further mnc-ification
934      - add verification/lab_sea to the list with mnc setups
935      - fix undefined mnc v-names in cd_code
936      - add kpp to mnc output (both snapshot and timeave)
937    o non-hydrostatic code
938      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
939        in calc_gw.F
940      - defaults to viscAh
941      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
942        friction or Leith) in non-hydrostatic mode, as long as there is
943        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
944    o pkg/cost
945      extend simple cost functions to treat time mean quantities
946      (T,U,V) via cost_accumulate_state from cost_tile
947    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
948        be 2 times larger than the minimum size the advection scheme requires.
949        now get a perfect conservation of salt in advect_cs test-exp (updated)
950    o GGL90 (Gaspar's TKE mixed layer)
951      - add horizontal diffusion of TKE, requires exchanges in
952        do_fields_blocking_exchanges, horizontal diffusivity is zero by
953        default. In OPA there is no horizontal diffusion of TKE but the
954        mixing coefficients are computed from a horizontal average of TKE of
955        6 points or so. I think that diffusion has a little more physical
956        justification.
957      - clean up ggl90_calc in the hope of reducing memory usage (this hope
958        was in vain)
959      - mask tke-variable in ggl90_init
960    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
961    o fix biharmonic diffusion on CS-grid.
962    o more obcs stuff
963      - added obcs_external_fields_load as an alternative to the EXF-pkg option
964        for reading boundary values. This routine is called from
965        obcs_prescribe_read
966      - updated obcs_check
967      - changed sponge layer relaxation parameter units for days to seconds
968      - turned off sponge layer by default
969      - changed argument list of OBCS_CALC to myTime+deltaTclock
970      - fixed about 35 bugs in obcs_external_fields_load
971    
972    checkpoint55c_post
973    o obcs stuff
974      - new runtime flags useOBCSprescribe, useOBCSbalance
975      - re-arranged obcs_calc
976      - moved exf_getobcs to obcs_prescibe_read
977        obcs_prescibe_read is called after ORLANSKI stuff
978        and independent of it (executable can contain all).
979      - updated obcs_check
980      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
981        These may be necessary only if tangential velocities are
982        prescribed at OB, not sure, needs testing.
983    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
984      which simplifies the calls and passes the ifc check-bounds test
985    
986    checkpoint55b_post
987    o add a 2D scalar, Z location, exchange_2 routine.
988    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
989      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
990      affects advect_cs results (for the wrong reason): update output.txt
991    o use a more standard discretization for biharmonic viscosity ;
992     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
993      affects results of dome set-up: update output.txt
994    o fix gad_advection.F (CubedSphere part), back to version 1.23
995    o fix bug in mom_vi_del2uv.F (CubedSphere part).
996    
997    checkpoint55a_post
998    o merged code to
999      * prescribe/read time-dependent open boundaries
1000        (works in conjunction with exf, cal)
1001      * sponge layer code for open boundaries
1002      * each boundary N/S/E/W now has its own CPP option
1003        (healthy for the adjoint)
1004    
1005    checkpoint55
1006    o up-to-date adjoint of previous breaks
1007      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1008      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1009      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1010      - carbon: * remove tr1-related adjoint verification
1011                * add ptracer as control variable
1012    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1013      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1014    
1015    checkpoint54f_post
1016    o in verification/carbin/ remove experiment related to
1017      ALLOW_PASSIVE_TRACER (array tr1 etc)
1018      code_ad/ input_ad/ results_ad
1019    
1020    o add two new packages
1021      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1022        + subject to optimization (memory)
1023      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1024        + subject to reordering (many GOTOs in the original code)
1025        + so far opps is called for every (i,j) point, and then operates in
1026          the vertical; one may want to reorder the scheme in order operate in
1027          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1028          fields)
1029    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1030      - all verification tests compile and run with linux_ia32_g77
1031      - defaults are compatible with current input files--nothing
1032        should change if you were not previously using MNC
1033      - MNC output has been added in numerous places (eg. timeave)
1034        but there are still a few writes not yet do-able with MNC
1035        (this is in progress)
1036      - flags now allow for either/or/both use of MDSIO and MNC and
1037        documentation will soon follow
1038      - numerous small formatting cleanups for ProTeX
1039    o add version info (via BUILD_INFO.h) to MNC and stdout
1040    
1041    checkpoint54e_post
1042    o add two new packages
1043      - pp81 (Packanowski and Philander, 1981), Richardson number and
1044        stratification dependent mixing
1045      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1046      - these scheme operate in a similar manner as KPP (without ghat, of
1047        course), however there is only one diffusivity that is used for both
1048        temperature and salinity (and passive tracers)ç
1049    o add offline package
1050    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1051      provided by Stephanie Dutkiewicz
1052    o genmake2: add ability to search for C compilers and cleanup test output
1053      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1054    
1055    checkpoint54d_post
1056    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1057    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1058      leading to additional shift by 5 days each year of integration
1059       (i.e. leading to considerable offset over the years)
1060    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1061    o start with no AB and no initial filtering (staggerTimeStep):
1062      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1063    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1064      (external loading & cpl import/export stay in forward_step.F)
1065    o update coupling interface to work with new staggerTimeStep
1066    o change MDSIO ptracers_pickup.
1067    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1068    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1069    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1070    
1071    checkpoint54c_post
1072    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1073      this affects (truncation error) output.txt of test-exp:
1074       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1075    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1076    o change Qnet to always be the net heat flux, (+upward).
1077      affects (truncation error) output of natl_box exp.: updated
1078    o define the max number of passive tracers in PTRACERS_SIZE.h
1079    o start to test mnc routinely in exp0
1080    o add sea-ice loading (sIceLoad) as a new forcing field.
1081    
1082    checkpoint54b_post
1083    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1084       impressive on Altix and Opteron systems)
1085    o diagnostics can now write NetCDF files through the mnc package
1086    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1087    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1088    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1089      affects (truncation error) output of lab_sea & natl_box exp.: updated
1090    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1091    
1092    checkpoint54a_post
1093    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1094    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1095    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1096    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1097      + internal_wave (shift in writing cg2d_ini_res)
1098    checkpoint54a_pre
1099    
1100    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1101      - modified verification/lab_sea and natl_box_adjoint accordingly
1102    
1103    checkpoint54
1104    checkpoint53g_post
1105    o prepare splitting of thermodynamics: store convect.counter in common block
1106    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1107      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1108    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1109    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1110    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1111    o restore adjointability
1112    
1113    checkpoint53f_post
1114    o modifications that affect AIM experiment results (update output.txt):
1115      - no advection of S at top interface Nr (pkg/generic_advdiff)
1116      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1117    o AIM pkg:
1118      - include stability function into surf.Flux derivative relative to Tsurf
1119      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1120    
1121    checkpoint53e_post
1122    o merged cylindrical coord configuration
1123    o added rotating_tank experiment
1124    checkpoint53e_pre
1125    
1126    checkpoint53d_post
1127    o faulks upgraded: re-generate output.txt that have changed:
1128       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1129    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1130    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1131    o added Sadourny discretization of Coriolis
1132      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1133      - re-enabled use of omega3 (useAbsVorticity)
1134    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1135      vector-invariant equations
1136      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1137    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1138      hopefully without new bugs
1139      - still to do: biharmonic friction for non-hydrostatic w
1140    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1141    o regenerated output for global_ocean_ebm (using -ieee)
1142    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1143      of mom_common/
1144      - simple re-arrangement of instructions within computing loop
1145    checkpoint53d_pre
1146    
1147    checkpoint53c_post
1148    o new version of coupler for AIM+thSIce and Ocean models
1149     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1150     - land: change Evaporation of snow
1151     - aim with thSIce: fix bug in snow-precip.
1152    o changes to calc_gw.F
1153     - bug fix for w^2 term near the bottom boundary
1154     - (hopefully) improve the lateral slip boundary condtions for use with
1155        partial/looped cells
1156      - because the bug fix changes two verification experiments anyway (exp5
1157        and plume on slope), change the lateral boundary condition from half slip
1158        to the value of no_slip_sides
1159    o ebm package wasnt quite up to the parallel task. Fixed that.
1160    o Adjoint of EBM package + verification
1161      * TLM OK
1162      * ADM not sufficient accuracy yet (needs further testing)
1163    
1164    checkpoint53b_post
1165    o Commiting new energy balance model to repository
1166      * package is pkg/ebm
1167      * verif. is verification/global_ocean_ebm
1168      * references are in ebm_driver.F
1169    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1170    C        Global thermohaline circulation. Part I:
1171    C        Sensitivity to atmospheric moisture transport.
1172    C        J. Climate 12(1), 71-82
1173    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1174    C        Global thermohaline circulation. Part II:
1175    C        Sensitivity with interactive transport.
1176    C        J. Climate 12(1), 83-91
1177    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1178    C        Destabilization of the thermohaline circulation
1179    C        by atmospheric eddy transports.
1180    C        J. Climate 7(12), 1870-1882
1181    o Will need long integration testing.
1182    checkpoint53b_pre
1183    
1184    o created pkg/mom_common in preparation for variable viscosity code
1185    o renamed and split ini_mnc_io
1186    o pkg/land: only liquid water can diffuse or run-off
1187    o AIM using land: soil wetness availability account for snow
1188    o added printMapIncludesZeros to EEPARMS namelist
1189    
1190    checkpoint53a_post
1191    o restore TAMC compatiility for exf_constants.h
1192      (no usage of _d in .h)
1193    o Additional storing in KPP in an attempt to fix
1194      TAMC problem with adjoint of KPP code.
1195      (no success...)
1196      Identical code works fine with TAF.
1197    o Fixed verification/natl_box_adjoint experiments.
1198      Initial conditions for Experiments 4 and 5 are now
1199      set to "SEAICE_initialHEFF=0", which is more reasonable,
1200      and hence gives results closer to that of Experiment 2.
1201      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1202    
1203    checkpoint53
1204    o stable checkpoint with up to date adjoint
1205      TLM tests only run for 1st grdchk at the moment. Its unclear if
1206      this is a code problem or a problem with resetting code for g_
1207      variables that is being autogenerated wrong.
1208      Otherwise:
1209       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1210       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1211         are both still in chaos following their security messes.
1212    
1213    checkpoint52n_post
1214    o various build (mostly genmake2) changes including:
1215      - ability to build/run more easily within Cygwin and MacOS X
1216      - more complicated Makefiles with a stronger dependence on Gnu Make
1217    o pkg/seaice modifications
1218      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1219        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1220        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1221      - changed proxy for geostrophic velocity and updated
1222        verification/lab_sea/results/* accordingly
1223      - removed ADI dynamic solver from pkg/seaice
1224      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1225        they caused a segmentation fault under certain circumstances
1226      - removed unused field WATR
1227    o bug fix in exf-package:
1228      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1229         now reflect that.
1230    o small fixes in the cal-package:
1231      - set reference date to first of January for the 'model'-calendar
1232      - failing of cal_CheckDate in cal_FullDate now actually results in a
1233        warning
1234    o small modifications in exf-package to increase flexibility:
1235      - change climtempfreeze from a constant to a runtime parameter that
1236        is specified in data.exf_clim (default = -1.9)
1237      - introduce runtime parameter windstressmax (default = 2.0) that is
1238        specified in data.exf
1239    o fix in pkg/thsice:
1240      - update Evap (Tsf changes) to be consistent with Latent heat flux
1241      - maintain snow precipitation unchanged (even if Tsf >=0).
1242     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1243    
1244    checkpoint52m_post
1245    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1246      this does not change any of the results, because myIter=0 in swfrac always
1247      lead to jwtype=2 (the default anyway), but the call makes little sense
1248      as a default
1249    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1250    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1251      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1252    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1253    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1254    o extending useSingleCpuIO option to work with new exch2 I/O format
1255      - old-style, missing-tile I/O is still accessible by defining CPP
1256        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1257    o monitor package can write to NetCDF files and/or STDOUT
1258    o fix re-definition bug in MNC_GRID_INIT_ALL()
1259    o doc/api_reference added
1260      - a framework for building an API Reference Manual using all
1261        the "protex" comments embedded in the code
1262      - see pkg/generic_advdiff, pkg/mnc for examples
1263    o MNC:
1264      - make myThid the last argument for all subroutines
1265      - new default for the grid files: NO halos
1266      - add useMNC and other run-time flags
1267      - separate per-file-group handling of the unlimited dimension
1268      - early initialization of MNC w/ flags read at the eeboot stage
1269        and lookup tables set in initialize_fixed
1270      - write all MNC output to a freshly-created directory
1271    o thermodynamics sea-ice (thsice) is now tested with testreport.
1272    o test exp. advect_cs: use the standard cs32 grid ; update output.
1273    o Added functionality to grdchk:
1274      pick global i,j,k position (or nearest wet) where to perform check.
1275    
1276    checkpoint52l_post
1277    o new land formulation:
1278      a) use ground enthalpy as prognostic variable to ensure exact
1279         energy conservation.
1280      b) account for water temperature and for latent heat of freezing
1281         in all processes (rain, run-off, ground storage)
1282      c) compute surface and ground temperature implicitly.
1283    o aim_v23 modification for new land model:
1284      a) Treat separately land / ocean / sea-ice surface fluxes
1285         to allow implicit computation of land & sea-ice surface temp.
1286      b) add snow precipitation.
1287    checkpoint52l_pre
1288    
1289    o fix problem (when 1 tile is empty) in min/max monitor.
1290    o fix bug in timeAve (u,vZetatave in common block)
1291    o no restoring terms under ice for pkg/seaice
1292    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1293    o bug fix for pkg/seaice pickups
1294    o change MNC call locations and add coordinate attributes
1295    o mask vorticity at the corner ; affects global_ocean.cs output
1296    o fix ini_curvilinear_grid ; test CS experiments with mpi
1297    o aim.5l_cs: modify sea-ice fraction input file ; update output
1298    o exf: Adding simple range check routine for exf fields after read
1299    
1300    checkpoint52k_post
1301  o removed top-level directory "diags"  o removed top-level directory "diags"
1302    - we migrated these functions to pkg/timeave a long time ago    - we migrated these functions to pkg/timeave a long time ago
1303  o fixed bug introduced in pkg/monitor  o fixed bug introduced in pkg/monitor
1304    o accuracy ctrlprec = 32 insuffient for gradient checks using
1305      averaged fields (I/O via cost_averages)
1306      -> use ctrl.h in active_file*.F to control I/O precision.
1307    o paramter list of CALL ADTHE_MAIN_LOOP
1308    o added initial do_the_model_io to ecco
1309    o set all ...Freq to zero after cost_final
1310      taveFreq, dumpFreq, pChkptFreq
1311    o MAIN and ECCO differentiability restored
1312    
1313  checkpoint52j_post  checkpoint52j_post
1314  o fix nchklev in tamc.h for global_ocean...  o fix nchklev in tamc.h for global_ocean...

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