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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.638 by heimbach, Thu Mar 23 19:59:59 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    checkpoint58c_post
8    o adjoint: finish NLFS adjoint and provide reference output in
9      verification/global_ocean.90x40x15/results_ad_nlfs
10    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
11      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
12      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
13      with SEAICE_CGRID defined.
14    o move calendarDumps from "data" to "data.cal" and clean-up the code
15      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
16    o add useEXF & useCAL flags (for now, set in hard-coded way)
17    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
18      (were missing in NH mode, and wrong in quasihydrostatic mode).
19      waiting for Chris updated version of calc_gw to add those CALLs.
20    o fix bug in quasihydrostatic S/R ;
21      add a test for this option: global_ocean.90x40x15.qshyd
22    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
23      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
24    o add on/off flag useOffLine for package OFFLINE
25    o seaice:
26      - modify advection so that it works also on the C-grid
27      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
28        problem in multi-tile runs with C-grid
29      - add flags for clipping ice velocities and/or masking solver forcing
30      - fix drag (ocean on ice) formulation and a bug that caused noise in the
31        C-grid solver
32      - added a few comments to seaice_diffusion.F
33      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
34        are now exclusive)
35      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
36        required re-ordering the code a little:
37       + make DAIRN global variable (defined in SEAICE)
38       + move computation of the viscosities eta and zeta into a new separate
39         routine (because I need to recompute them in seaice_ocean_stress.F)
40    
41    checkpoint58b_post
42    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
43      update output.txt of exp. aim.5l_cs.thSI
44    o various mnc cleanups and improvements:
45      + shrink lookup tables by factor of ~4
46      + better error reporting when running out of lookup space
47      + able to handle longer path/file names (up to 500 chars)
48    o adjoint:
49      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
50      - TBD: "hidden" mom_vecinv recomp. in dynamics
51    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
52     (allow to differentiate between forcing components using new integer flags:
53      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
54     and add new flag to put Dissipation tendency out of Adams-Bashforth.
55    o ecco
56      - enable trend removal from SSH anomaly obs.
57    o adjoint
58      - a fix for PmEpR when #undef EXACT_CONSERV
59      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
60      - try to fix "hidden" recomp. in forward_step for NLFS
61        (NLFS seems broken sometimes after I checked it in)
62    o seaice:
63     - add c-grid version of the dynamic solver:
64       + three new routines that are the c-grid substitute lsr, dynsolver
65         and ostres
66       + put a few fields that were local to dynsolver into global common
67         blocks, so that I can move the computation of stresses etc into
68         seaice_lsr (saves coding but may break the adjoint).
69     - replace more hardwired parameters by runtime parameters
70     - add ice masks that mask the rhs of the implicit solvers where there
71       is no ice (commented out in seaice_dynsolver, because i am not sure
72       if this works properly), eventually this should replace the clipping
73       of ice velocities in seaice_dynsolver to +/-40cm/s.
74    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
75      include it only where its needed
76    o move balancing of fluxes before the call of external_forcing_surf
77    o seaice:
78      - correct units of turning angles (now they are really in degrees)
79      - move computation of GWATX/Y out of main routine into dynsolver
80      - initialize GWATX/Y in seaice_init
81    o Apply mask on Fresh-Water flux (needed for SSH forcing).
82      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
83    o seaice: add runtime flags for turning angles (default to zero)
84    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
85      and trend from exf forcing and ctrl control adjustments
86    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
87      (since checkpoint57x_post)
88    o change the default rotation period to 86164.s = the Earth rotation
89    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
90      and based on a reference stratification. Tested within hs94.cs-32x32x5.
91    o seaice advection: add code for choosing between the default (2nd order
92      central differences) and multiDim advection schemes provided by
93      pkg/generic_advdiff
94    o seaice:
95      - removed all references to SEAICE_GRID.h fields from
96        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
97        (cubed-sphere configuration will change a little)
98      - grid computations in seaice_init are obsolete now.
99      - cleaned up code a little so that is easier to read (hopefully).
100      - added new (better?) discretizations of default advection and diffusion
101        (turn on with SEAICEuseFluxForm)
102      - replace 1 in 3d global fields by kSurface in growth.F
103      
104    checkpoint58a_post
105    o seaice:
106      - bug fix in advect.F
107    o shelfice:
108      - separate shelfice load anomaly from pload (breaks with time
109        dependent forcing), => introduce constant field shelficeLoadAnomaly.
110        Its default is 0., but it may be computed more cleverly from (unknown)
111        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
112        done offline. A good approximation of the pressure load anomaly is
113        necessary to avoid large initial adjustment processes underneath
114        deep-reaching shelfice.
115      - small fix in ISOMIP shelfice_thermodynamics
116      - add more sophisticated thermodynamics of Hellmer (1989), this is
117        now the default
118      - give a few constants more intuitive names
119    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
120      if bulk formulae are used in long integration (especially EmPmR). Turn
121      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
122      if balancePrintMean, the imbalance that is substracted is printed to
123      STDOUT.
124    o fix bug (typo) in obcs_apply_eta.F
125    o add a new package shelfice which enables us to model the circulation
126      underneath shelf-ice with draughts of hundreds of meters.
127     - works
128     - to do: + include improved thermodynamics
129              + check whether kSurfC (from model/inc/SURFACE.h) can be used
130                instead of new field kTopC
131              + can we use topoFile, Ro_surf and existing code in ini_depth.F
132                instead of new field R_shelfIce and new code in ini_depth.F
133                and ini_mask_etc.F?
134              + adjust vertical mixing schemes?
135    o seaice pkg:
136     - add a cpp-flag to include a simple formula for a salinity dependent
137       freezing point of sea water at the surface
138     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
139       meridional stresses are now different (and hopefully correct)
140    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
141       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
142       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
143    o pkg/diagnostics: add options and parameters for regional-statistics
144       diagnostics ; define regions by reading a region-mask from a file
145       (might add other options later)
146    o pkg/bulk_force:
147     - add option and parameters to use AIM surface-flux formulae.
148     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
149       others forcing fields (defined in PARM05, parameter file "data") are loaded
150       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
151     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
152     - use the right EXCH call for uwind,vwind (to work on CS-grid).
153     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
154       and parameters (note: calcWindStress replaces .NOT.readwindstress).
155     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
156    
157    checkpoint58
158    o add "--embed-source" option to genmake2 which, when the supporting
159      tools can be compiled (as determined by genmake2) will turn on the
160      embed_files package which then embeds the entire MITgcm source code
161      (*.[fFhc] + Makefile) used for the build within the executable
162      - requested by CNH but off by default
163      - adds a paltry <9MB to the mitgcmuv executable in most cases
164      - only writes the output when useEMBEDSRC in eedata is true
165    o clean up 3-dim. relaxation codes:
166      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
167      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
168      * Thanks to Tom Haine for testing!
169    
170    checkpoint57z_post
171    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
172      affects output (@ truncation level) of exp. plume_on_slope ; updated.
173    o fix the pickup behavior for obcs in combination with ptracers
174    o fix a bug in ptracers_external_fields_load
175    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
176      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
177    o transfered surface NH pressure to eta field (if exactConserv).
178    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
179         and update lab_sea output.txt file.
180    o completing 3-dim. relaxation code: additional term
181         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
182      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
183      * At compile time, in "EXF_OPTIONS.h" set
184          #define  ALLOW_CLIMTEMP_RELAXATION
185          #define  ALLOW_CLIMSALT_RELAXATION
186      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
187          tauThetaClimRelax3Dim = 15552000.0,
188          tauSaltClimRelax3Dim  = 15552000.0,
189      * 3 cases:
190          1) Use a constant-in-time 3-dim. field
191          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
192          3) Real-time relax. to time-evolving prescribed field
193    o Adding Laplacian-type smoothness constraint on
194      initial and boundary (forcing) controls (ic, bc)
195      * enable at compile-time via
196        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
197      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
198      * Absolute scale somewhat unclear so far
199      * no area weighting was included since no other cost term does so far
200    
201    checkpoint57y_post
202    First step for a NLFS adjoint
203    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
204    o new init. routines for calc_r_star, calc_surf_dr
205    o still need to deal with ini_masks_etc
206    o testreport seemed happy
207    checkpoint57y_pre
208    
209    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
210    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
211    o add new offset feature to offline pkg (plus minor cleanup)
212    o cfc fixes for final year of integration
213    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
214      be in GCHEM_OPTIONS).
215    
216    checkpoint57x_post
217    o fix testreport Pb in multiple test experiment.
218    o cleanup our namelist syntax in verification:
219      - make it more F95 standards compliant (some work still needed)
220      - allows the vast majority of our tests to work with gfortran
221    o Non-Hydrostatic:
222     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
223     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
224    o Allow to apply AB on T,S rather than on AB(gT,gS):
225     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
226     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
227       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
228     - need a "clever" read_pickup to restart from the other AB formulation
229    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
230    o remove some unused variables (reduces number of compiler warnings)
231    o adjoint
232      * Disable useVariableViscosity for adjoint for time being
233        (there are a number of extensive recomputations)
234      * Initialize certain variables needed for adjoint
235    
236    checkpoint57w_post
237    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
238                 fix the singleCpuIO RS version of MDSWRITEFIELD
239       and add a WARNING if using globalFiles=T with multi-processors.
240    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
241      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
242    o tracer advection scheme:
243      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
244       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
245       was not very convenient).
246      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
247       (further tests needed for the implicit DST & Flux-Limiter schemes).
248    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
249      and sRef for convenience, handy, when you want to initialize
250      ptracers in a large domain with a constant non-zero value. Also,
251      untangle ptracers_init.F a little.
252    
253    checkpoint57v_post
254    o change dome exp. to use variable viscosity in side-drag terms.
255    o remove all the files from the cfc_offline test since they are now
256      incorporated into tutorial_cfc_offline which has been producing
257      identical results for a few days of testing
258    o add new parameter: sideDragFactor to enable half-slip-side BC
259      and change side-drag S/R to use viscosity from mom_calc_visc
260      (can switch back by setting sideDragFactor=0.); affects results at
261      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
262       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
263    o vorticity & strain are now computed without masking, to account for
264      no-slip-side BC in variable viscosity calculation ; mask is applied
265      anyway later on, before computing advection/coriolis terms.
266    o modify exp4 to test new obcs support for reading from external files
267      and for passive tracers
268    o fix behavior of ptracers_monitor when monitor output is written to a
269      netcdf-file; still not independent of monitor.F (writes in the same
270      file).
271    o change default value of tRef (put a uniform, meaningful value for ocean
272      & atmos) and initialize sRef (was missing, as Martin mentioned).
273    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
274      to be proportional to enstrophy dissipation length.  Thus,
275       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
276      This is now consistent with Smagorinsky and with the manual.
277    
278    checkpoint57u_post
279    o OBCS and PTRACERS: add open boundary support for passive tracers
280      - either use homogenous (pseudo) v.Neumann conditions or prescribe
281        OB-values from file; this is not different from the way theta and salinity
282        are treated
283      - however, Orlanski-radiation conditions are not supported, and the model
284        will stop if you use pTracers and Orlanski at the same time.
285      - beefed up the rountine obcs_external_fields_load: now only those open
286        boundary values are overwritten with values from files for which there
287        are really files, otherwise the OB-fields remain untouched. This makes
288        it possible to use different OBs at different ends of the domain (as
289        with EXF)
290    o reduce number of exch calls in shap_filt (s2).
291    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
292      truncation level) 4/5 MLAdjust test results (11&12 digits match).
293    
294    checkpoint57t_post
295    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
296    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
297      same truncation, independent of the face number: affects affects several
298      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
299    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
300      note that biharmonic viscosity + no-slip was not tested in any experiment.
301    o fix bug in non-linear free-surf side-drag ; generate new output for
302      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
303    o make mnc honor the writeBinaryPrec flag for most kinds of output
304    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
305    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
306      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
307    o add brackets in multi-terms sum to get same truncation, independent of
308      the face number (manage to get exactly same value of gU,gV at the cs-edge)
309      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
310    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
311      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
312      a maximum grid-scale Reynolds number.  Also, changes all length calculations
313      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
314      Suggested values of viscosity parameters found in mom_calc_visc.
315      Many new viscosity diagnostics available.
316    
317    checkpoint57s_post
318    o Add clearing-house for viscosity calculations, mom_calc_visc and
319      correct numerous bugs in LeithD and Smagorinsky discretizations.  
320      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
321      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
322      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
323      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
324      The Strain-Tension form is now called with useStrainTensonVisc=.true.
325      ViscAhStrain and viscAhTension are now retired.
326    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
327    o In response to JMC's bug report, genmake2 now ignores any soft-links
328      that it finds in the *current* directory when searching for files.
329      Soft-links found in any other source directories will still work as
330      they did before.
331    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
332      a C routine to unlimit the stack size
333    o mnc-ify pkg/aim snapshot vars
334    o mnc-ify pkg/land as requested by Daniel
335    o various changes to mnc including:
336      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
337      - output can now be grouped so that all files within a group
338          change the ITER portion of their names in lock-step together
339      - can now read ("global") PER-FACE (in addition to PER-TILE) files
340          and works with both EXCH1 and EXCH2 (but needs more testing)
341      - writing works for all verification test cases w/ g77 on Linux
342    
343    checkpoint57r_post
344    o make MNC variable initialization happen earlier
345    o add diagnostics for (almost) each term of the momentum Eq.
346    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
347    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
348    o remove MINIMAL_TAVE_OUTPUT option ;
349      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
350    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
351      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
352    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
353    o add time-dependent SST, SSS control
354    o cost terms in ecco/ modularized (new cost_generic.F)
355    o cost_averages routines are modularized (new cost_averagesgeneric.F)
356    o new infrastructure for seaice model vs. obs misfits in seaice/
357      * driver from the_main_loop.F is seaice_cost_driver.F
358      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
359      * gradient check in Exp. 6a of natl_box_adjoint/
360    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
361      (see README file)
362    
363    checkpoint57q_post
364    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
365    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
366      - bug was reported by Jean-Michel and Ian Fenty
367    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
368      update exp. cpl_aim+ocn output.
369    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
370      Needed for high-res. runs with large global files
371      to be able to limit tapelev size
372    o Changed some tests for adjoint:
373      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
374      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
375      * global_ocean.90x40x15/ back to default 3-level checkpointing
376    o Modifications to enable scripted COMMON to MODULE conversion
377      * verification/OpenAD/code/ has necessary scripts and description;
378      * converts, compiles and runs successfully;
379    
380    checkpoint57p_post
381    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
382    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
383      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
384    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
385    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
386      (was already the case for dissipation with mom_vecinv,
387       and also the case for grad.PhiHyd when staggered-timeStep)
388      This will allow to put dissipation out-off the AB time-stepping.
389     Unfortunately, affects truncation error. Update output of exp. that "fails"
390      (cg2d matching number) and leave the others for later: front_relax(10),
391      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
392      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
393    
394    checkpoint57o_post
395    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
396      (2) its ready to be documented during the 20050801 DocFest
397    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
398      for ideal_2D_oce and lab_sea on linux_ia32_g77
399    o set to #undef CTRL_SET_OLD_MAXCVARS_30
400      in global1x1_tot/code_seaice_adj to access indices 32, 33
401      (worth another tag)
402    
403    checkpoint57n_post
404    o adding precip control xx_precip 32
405    o adding swflux control xx_swflux 33
406    o Replacing 10 forcing penalty cost routines by 1 generic.
407    o Implementing partitioning in time-mean and variable adjustment
408      for atmos. state.
409    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
410    o in natl_box_adjoint:
411      * updated exp 1 to 10
412        (but does not have time-mean vs. variable split results yet)
413    o updated global1x1/*_seaice_adj/
414      to incorporate latest changes
415    o enable useSingleCpuIO for mdsio vector routines
416      (applies in particular to tapelev I/O)
417    o removed inefficient K-loop in all active_file*control*.F
418    
419    checkpoint57m_post
420    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
421      and advect_cs (use EXCH-2 and standard cs-32 grid files).
422    o pkg/exch2: filling of face-corner halo regions is optional
423      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
424    
425    checkpoint57l_post
426     tag before updating tutorials (pre-release-2)
427    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
428       for output and interpolation of input fields onto model grid)
429    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
430       Affects results of exp. rotating_tank ; update output.txt.
431    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
432          and taking the square quantity and/or using a fraction-weight field.
433    o fix aim_diagnostics_init.F mate numbers.
434    o add mnc output capability to diagnostics/diagstat and update
435      our cvsignore files for the ACSII output generated
436    
437    checkpoint57k_post
438    o lab_sea now uses diagnostics package and provides a suite of
439      new EXF diagnostics output.
440    
441    checkpoint57j_post
442    o exf
443      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
444        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
445        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
446      * extended diagnostics output
447        - now includes all EXF variables
448        - hs, hl moved to common block
449        - separate S/R for diagnostics, called after ctrl vector is added
450        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
451        - EXFqnet contains true Qnet (i.e. includes qsw)
452      * updated verif. lab_sea, global_with_exf
453      * Rearranging hflux (exf_mapfields -> exf_getforcing)
454        to ensure that diagnostics sees a true EXFqnet
455    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
456    o diagnostics pkg: change pointers so that 1 diagnostic can be used
457      several times with different frequencies.
458    o mnc-ify the thsice package as requested by Daniel Enderton
459      - the monitor--MNC output needs work
460      - many attributes need to be added (most are currently blank)
461    o mnc-ify theaim_v23 package as requested by Daniel Enderton
462      - many attributes need to be added (most are currently blank)
463    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
464    o add Sadourny like discretization to the 4th.O vorticity advection scheme
465    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
466      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
467         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
468    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
469     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
470    
471    checkpoint57i_post
472    o Diagnostics package was changed: diagnostic allocation is now deactivated
473      by setting an empty file name in the namelist (used to be by setting 0 frequency)
474    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
475      add 1rst Order upwind vertical Shear.
476    o add a quick fix for A/B checkpointing in OFFLINE mode
477    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
478      end-run around the C/Fortran linking horror in eesup/src/timers.F
479    o added pkg/runclock: allows user to terminate run based on wall clock
480    o added non-hydrostatic scaling parameter: nh_am2
481    o pkg/my82: futile attempt to make results compiler-independent by adding
482      some "_d 0", etc. no effect.
483    o for mnc output, fill the 'T' coordinate var with myTime and create a
484      separate 'iter' variable for iteration count
485    o pkg/diagnostics:
486      add new capability: output of Global/Regional & per-level statistics ;
487      tested against monitor output (including land & thSIce) on various exp.
488    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
489    
490    checkpoint57h_done
491      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
492      data.diagnostics, data.gchem, data.ptracers) is done.
493    
494    o pkg/diagnostics: prepare for Global/Regional statistics.
495      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
496    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
497      and rename it: DIFFERENT_MULTIPLE
498    
499    checkpoint57h_post
500    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
501    o pkg/diagnostics: change output frequency, now in seconds (instead
502      of Nb of iterations). This requires to change data.diagnostics.
503    checkpoint57h_pre
504    
505    o in mnc, let the user create the output dir if both mnc_outdir_date
506      and mnc_outdir_num are false
507    o add fflags() to pkg/diagnostics which allows one to specify, on a
508      per-file basis, the file precision [default behavior is unchanged]
509    o added diagnostics to pkg/kpp, including computation of mixed layer
510      depth based on a temperature/density criterion
511    o updated verification/natl_box to test the new pkg/kpp diagnostics
512    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
513    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
514    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
515      not mnc -- this mistake was found by JMC and is now corrected
516    
517    checkpoint57g_post
518    o add Adams-Bashforth 3rd Order time stepping:
519      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
520      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
521    checkpoint57g_pre
522    
523    o make lambda[Theta,Salt]ClimRelax spatially varying
524      (default remains spatially uniform constant based on tau)
525    o added new control variables
526      * init. uVel, vVel, etanN
527      * lambda[Theta,Salt]ClimRelax
528    o separate masks used for ctrl_pack/unpack 'from write_grid' output
529      (suggested by G. Forget)
530    
531    checkpoint57f_post
532    o add parameter "baseTime" = model base time = time at iteration zero
533      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
534      account for baseTime shift
535    o move Coriolis arrays from PARAMS.h to GRID.h
536    checkpoint57f_pre
537    
538    o mnc-ifying the seaice package
539    o introduced an alternative length scale calculation for use in the limiting
540      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
541    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
542    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
543      as well as grad(vort3).  Made it compatible with both approximate form
544      for the cubed sphere and full form of these gradients.  Added flag
545      useFullLeith to select between approximate and full form.  
546    o add "d0" in getcon.F to reduce differences between compilers/platforms
547      update output.txt of exp. fizhi-gridalt-hs
548    o change port_rand funtion to allow to set the seed.
549    o fix obscure MNC bug involving conversion between reals and integers
550      - it caused no problems with certain (eg. gcc, ifc) compilers but the
551        new version is now more standards-compliant
552    o adjoint-related modifications
553      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
554      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
555      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
556    
557    checkpoint57e_post
558    o Adding eddy stress controls a la Ferreira et al.
559    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
560    
561    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
562      update output.txt of exp. fizhi-gridalt-hs
563    o add more "Z" dimensions and associated coordinate vars to MNC
564    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
565    o parameter calendarDumps: when set, approximate months (30-31 days) and years
566      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
567      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
568      months and years.  Requires pkg/cal.
569    o diagnostics: add pickup functionality
570      - off by default for backwards compatibility
571      - current version only uses MDSIO -- MNC will be added
572    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
573    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
574    
575    checkpoint57d_post
576    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
577    o modify verification/ideal_2D_oce so that it tests the creation of mnc
578      output from the diagnostics package
579    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
580    o make genmake2 more portable by using ".$FS" instead of ".f" for more
581      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
582    o add coordinate variables to the MNC output from the diagnostics package
583    o change MNC-flags default value: true when useMNC=TRUE
584    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
585      the ability (off by default) to read the grid information using MNC
586    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
587    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
588    o do snap-shot diagnostics at the middle of the time-interval (instead of
589      at the end).
590    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
591      new test for AIM with thSIce + slab-ocean
592    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
593    o move state variable diagnostics to the beginning of the time step ;
594      (note: still needs some work specially for snap-shot diagnostics)
595      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
596    
597    checkpoint57c_post
598    o Change testing option (-ieee) to get closer agreement between g77 & ifort
599    o generate new output.txt files on faulks with g77 & the new -ieee option
600    checkpoint57c_pre
601    
602    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
603      update output.txt of exp. global_ocean.90x40x15
604    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
605      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
606    o add saltFlux(+File) forcing capability with periodicExternalForcing
607    o allow to use pkg diagnostics for GM-Redi & ThSIce output
608    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
609    o improvements for the MNC output from DIAGNOSTICS:
610      - correct handling of the unlimitied dimension
611      - all dims now have associated coordinate variables
612      - variables located at U, V, and Corner ("Z") points are now written
613        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
614        *all* data points are output
615    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
616    o added pkg/seaice/seaice_monitor.F
617    o mdsio_readfield.F can now read files visible only to master MPI process.
618    o pkg/seaice: some test code for ice-modified ocean stress
619    o exf_getffields interpolation defaults to bilinear for all scalar forcing
620      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
621      spurious negative numbers for precipitation and humidity.  Will cause
622      some small numerical differences for integrations using pkg/exf/exf_interp.F.
623    o pkg/ctrl/
624      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
625        May be enabled via doPackDiag
626      *  introduce z-scaling of
627         + gradient (doZscalePack) and
628         + control (doZscaleUnpack)
629    o pkg/mdsio/
630      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
631      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
632    
633    checkpoint57b_post
634    o simplify options in diagnostics_fill arguments (remove weird combinations)
635    o fix MNC coordinate variables so that they now contain per-face index
636      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
637      general, EXCH2 grids are only aligned to a "local" coordinate system
638    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
639    o Implement instantaneous output within pkg diagnostics:
640      setting a negative frequency in data.diagnostics produces
641     "snap-shot" output (as opposed to time-average if freq > 0)
642    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
643      NOTE: change ptracer diagnostics name: use 2 characters to work with
644            more than 9 tracers. Add also diagnostics of advect & diffus flux.
645    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
646      becomes the coordinate variable for the 'T' dimension
647    o add CF-style coordinate variables to MNC
648      - just a first cut:  numbers are meaningless on the cubesphere and
649        missing along the T axis but otherwise it works!
650    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
651    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
652    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
653      this is based directly on what the model compute, so that the content of
654      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
655    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
656    o clean up build options files for SunOS, in particular
657      - remove -traditional from xmakedepend
658      - change -xarch=v9 to -xarch=native for f77
659      - restore use of make (not gmake)
660      - add CC=gcc if using g77
661    o changes per discussion of AM, JMC, & EH3 today:
662      - move redundant "grid" variables out of "state" -- in preparation of
663        creating proper CF-style coordinate variables and in recognition
664        that any/all grid variables can be easily copied (eg. w/NCO) from
665        the grid files into any of the other NetCDF files
666      - *always* output grid variables with MDSIO (this will eventually be
667        changed)
668      - output MNC grid file if useMNC is true
669    o every instance of _END_MASTER() has been found and replaced with
670      _END_MASTER( myThid ) in order to satisfy certain picky Sun
671      preprocessors
672    o re-arrange diagnostics pkg initialisation:
673     - allow each package to extend the available diagnostics list
674     - add some checking and fix small problems (multi-threaded, ...)
675     - new S/R diagnostics_fill (replace fill_diagnostics):
676       look through the short list of active diag. (instead of the long list)
677       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
678    
679    checkpoint57a_post
680    o this set of changes restores TAMC compatibility
681      tested for global_ocean.90x40x15 adjoint on trough
682      (what a pain)
683    
684    checkpoint57a_pre
685    o some modifs in tools/build_options for sunos
686    o call ctrl_pack for ctrl at end for optimcycle=0
687    
688    checkpoint57
689    o add horizontal bi-harmonic viscosity for vertical velocity
690      - new parameter viscA4W (defaults to viscA4)
691      - affects only non-hydrostatic code
692      - to be done: no-slip lateral boundary conditions
693    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
694    o implement Implicit Vertical advection for pTracers
695    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
696      (implemented also for implicit vertical diffusion & advection)
697    o OBCS: extend application of tracer open boundary conditions
698      to a strip beyond the boundary of width Olx/Oly
699    o add call monitor to TAF set of required calls (flow directives)
700      and include in natl_box_adjoint
701    o untangle a few ifdefs related to cost, ctrl, autodiff
702      untangel a few ALLOW_ECCO_OPTIMIZATION
703    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
704      (theta2, salt2 in ecco_cost_weights)
705    
706    checkpoint56c_post
707    o OBCS as control variables
708      - update ctrl_ad_diff.list, obcs_ad_diff.list
709      - remove balance of obcs controls from default
710      - fix index bug nobcs in ctrl_init
711      - fix dummy fields filen in ctrl_pack
712      - add dummy weights for obcs
713    o lsopt: comment out fort.94 output
714    o optim:
715      - remove unnecessary header files
716      - adjusted namelists
717      - add xerbla.F to Makefile
718    o exf:
719      - multiple modifications of exf_check_range
720      - unit change in exf_init_runoff from [m/year] to [m/s]
721    o mdsio:
722      - i/o-vector change debugLevel from debLevA to debLevB
723    
724    checkpoint56b_post
725    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
726      is called from DO_THE_MODEL_IO
727      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
728      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
729      - clean up PTRACERS_WRITE_TIMEAVE a little
730    o add another verification experiment that tests both the cfc-pkg and
731      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
732      reactive tendencies treated inline with regular timestepping
733    o testreport previously did a lousy job of comparing small numbers, so
734      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
735      implemented in the little c-progam tmp_cmpnum.c which is embedded in
736      testreport.
737    o ptracers_monitor: bug fix for MPI
738    
739    checkpoint56a_post
740    o GCHEM: finish reorganizating the package
741      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
742        (introduces another 3D-array for each passive tracer, but only if
743        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
744        gchemTendency is not needed because the timestep is done separately)
745      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
746      - GCHEM is now---more or less cleanly---separate from PTRACERS
747      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
748        so clear to me how that should be done in a general way.
749    o CFC: improve formatting of output in CFC_ATMOS
750    o PTRACERS:
751      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
752        that ALL experiments with ptracers enable can be checked. This makes
753        GCHEM_MONITOR obsolete.
754      - include a runtime parameter PTRACERS_monitorFreq that defaults to
755        monitorFreq
756      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
757    o add PTRACERS (PTR0[1-5]) to testreport output
758    o exf_check_range:
759      * default changed to .TRUE.
760      * will check values for niter0 if debLevA, every timestep if debLevB
761      * STOP in exf_check_range if 'out of range'
762      * range chosen generous to allow for potential extema
763      TBD: a version with stricter range
764           permitted range would be runtime parameters
765  o GMredi:  o GMredi:
766    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
767    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 770  o GCHEM:
770    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
771      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
772    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
773      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
774        this flag is now only visible within GCHEM-pkg routines.
775      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
776        be replaced by a 3D array that is computed before thermodynamics; for
777        this, the tracer ID iTracer had to be included into the parameter list
778        of ptracers_forcing
779      - set up forward_step to call gchem_forcing, that will replace
780        gchem_forcing_int in ptracers_forcing
781      - cleaning up
782  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
783    
784  checkpoint56  checkpoint56

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