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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.643 by jmc, Thu Mar 30 20:59:21 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
8      and add those terms in Vector-Invariant formulation.
9    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
10      if the control period (xx_hfluxperiod etc) is 0
11    o in profiles pkg, clean routines and fix details
12    o in ecco pkg, reading ssh data:
13      fix problem in case the model does not start at iter0=0
14    o fix mnc-pickup/restart for ptracers
15    o new package prifiles:
16      code to compute profile-based cost by Gael Forget
17      (modifs in ecco, ctrl, autodiff)
18    o Benign bug fix in initialization (spotted by M. Mazloff) of
19      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
20    
21    checkpoint58c_post
22    o adjoint: finish NLFS adjoint and provide reference output in
23      verification/global_ocean.90x40x15/results_ad_nlfs
24    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
25      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
26      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
27      with SEAICE_CGRID defined.
28    o move calendarDumps from "data" to "data.cal" and clean-up the code
29      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
30    o add useEXF & useCAL flags (for now, set in hard-coded way)
31    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
32      (were missing in NH mode, and wrong in quasihydrostatic mode).
33      waiting for Chris updated version of calc_gw to add those CALLs.
34    o fix bug in quasihydrostatic S/R ;
35      add a test for this option: global_ocean.90x40x15.qshyd
36    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
37      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
38    o add on/off flag useOffLine for package OFFLINE
39    o seaice:
40      - modify advection so that it works also on the C-grid
41      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
42        problem in multi-tile runs with C-grid
43      - add flags for clipping ice velocities and/or masking solver forcing
44      - fix drag (ocean on ice) formulation and a bug that caused noise in the
45        C-grid solver
46      - added a few comments to seaice_diffusion.F
47      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
48        are now exclusive)
49      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
50        required re-ordering the code a little:
51       + make DAIRN global variable (defined in SEAICE)
52       + move computation of the viscosities eta and zeta into a new separate
53         routine (because I need to recompute them in seaice_ocean_stress.F)
54    
55    checkpoint58b_post
56    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
57      update output.txt of exp. aim.5l_cs.thSI
58    o various mnc cleanups and improvements:
59      + shrink lookup tables by factor of ~4
60      + better error reporting when running out of lookup space
61      + able to handle longer path/file names (up to 500 chars)
62    o adjoint:
63      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
64      - TBD: "hidden" mom_vecinv recomp. in dynamics
65    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
66     (allow to differentiate between forcing components using new integer flags:
67      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
68     and add new flag to put Dissipation tendency out of Adams-Bashforth.
69    o ecco
70      - enable trend removal from SSH anomaly obs.
71    o adjoint
72      - a fix for PmEpR when #undef EXACT_CONSERV
73      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
74      - try to fix "hidden" recomp. in forward_step for NLFS
75        (NLFS seems broken sometimes after I checked it in)
76    o seaice:
77     - add c-grid version of the dynamic solver:
78       + three new routines that are the c-grid substitute lsr, dynsolver
79         and ostres
80       + put a few fields that were local to dynsolver into global common
81         blocks, so that I can move the computation of stresses etc into
82         seaice_lsr (saves coding but may break the adjoint).
83     - replace more hardwired parameters by runtime parameters
84     - add ice masks that mask the rhs of the implicit solvers where there
85       is no ice (commented out in seaice_dynsolver, because i am not sure
86       if this works properly), eventually this should replace the clipping
87       of ice velocities in seaice_dynsolver to +/-40cm/s.
88    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
89      include it only where its needed
90    o move balancing of fluxes before the call of external_forcing_surf
91    o seaice:
92      - correct units of turning angles (now they are really in degrees)
93      - move computation of GWATX/Y out of main routine into dynsolver
94      - initialize GWATX/Y in seaice_init
95    o Apply mask on Fresh-Water flux (needed for SSH forcing).
96      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
97    o seaice: add runtime flags for turning angles (default to zero)
98    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
99      and trend from exf forcing and ctrl control adjustments
100    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
101      (since checkpoint57x_post)
102    o change the default rotation period to 86164.s = the Earth rotation
103    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
104      and based on a reference stratification. Tested within hs94.cs-32x32x5.
105    o seaice advection: add code for choosing between the default (2nd order
106      central differences) and multiDim advection schemes provided by
107      pkg/generic_advdiff
108    o seaice:
109      - removed all references to SEAICE_GRID.h fields from
110        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
111        (cubed-sphere configuration will change a little)
112      - grid computations in seaice_init are obsolete now.
113      - cleaned up code a little so that is easier to read (hopefully).
114      - added new (better?) discretizations of default advection and diffusion
115        (turn on with SEAICEuseFluxForm)
116      - replace 1 in 3d global fields by kSurface in growth.F
117      
118    checkpoint58a_post
119    o seaice:
120      - bug fix in advect.F
121    o shelfice:
122      - separate shelfice load anomaly from pload (breaks with time
123        dependent forcing), => introduce constant field shelficeLoadAnomaly.
124        Its default is 0., but it may be computed more cleverly from (unknown)
125        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
126        done offline. A good approximation of the pressure load anomaly is
127        necessary to avoid large initial adjustment processes underneath
128        deep-reaching shelfice.
129      - small fix in ISOMIP shelfice_thermodynamics
130      - add more sophisticated thermodynamics of Hellmer (1989), this is
131        now the default
132      - give a few constants more intuitive names
133    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
134      if bulk formulae are used in long integration (especially EmPmR). Turn
135      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
136      if balancePrintMean, the imbalance that is substracted is printed to
137      STDOUT.
138    o fix bug (typo) in obcs_apply_eta.F
139    o add a new package shelfice which enables us to model the circulation
140      underneath shelf-ice with draughts of hundreds of meters.
141     - works
142     - to do: + include improved thermodynamics
143              + check whether kSurfC (from model/inc/SURFACE.h) can be used
144                instead of new field kTopC
145              + can we use topoFile, Ro_surf and existing code in ini_depth.F
146                instead of new field R_shelfIce and new code in ini_depth.F
147                and ini_mask_etc.F?
148              + adjust vertical mixing schemes?
149    o seaice pkg:
150     - add a cpp-flag to include a simple formula for a salinity dependent
151       freezing point of sea water at the surface
152     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
153       meridional stresses are now different (and hopefully correct)
154    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
155       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
156       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
157    o pkg/diagnostics: add options and parameters for regional-statistics
158       diagnostics ; define regions by reading a region-mask from a file
159       (might add other options later)
160    o pkg/bulk_force:
161     - add option and parameters to use AIM surface-flux formulae.
162     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
163       others forcing fields (defined in PARM05, parameter file "data") are loaded
164       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
165     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
166     - use the right EXCH call for uwind,vwind (to work on CS-grid).
167     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
168       and parameters (note: calcWindStress replaces .NOT.readwindstress).
169     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
170    
171    checkpoint58
172    o add "--embed-source" option to genmake2 which, when the supporting
173      tools can be compiled (as determined by genmake2) will turn on the
174      embed_files package which then embeds the entire MITgcm source code
175      (*.[fFhc] + Makefile) used for the build within the executable
176      - requested by CNH but off by default
177      - adds a paltry <9MB to the mitgcmuv executable in most cases
178      - only writes the output when useEMBEDSRC in eedata is true
179    o clean up 3-dim. relaxation codes:
180      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
181      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
182      * Thanks to Tom Haine for testing!
183    
184    checkpoint57z_post
185    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
186      affects output (@ truncation level) of exp. plume_on_slope ; updated.
187    o fix the pickup behavior for obcs in combination with ptracers
188    o fix a bug in ptracers_external_fields_load
189    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
190      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
191    o transfered surface NH pressure to eta field (if exactConserv).
192    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
193         and update lab_sea output.txt file.
194    o completing 3-dim. relaxation code: additional term
195         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
196      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
197      * At compile time, in "EXF_OPTIONS.h" set
198          #define  ALLOW_CLIMTEMP_RELAXATION
199          #define  ALLOW_CLIMSALT_RELAXATION
200      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
201          tauThetaClimRelax3Dim = 15552000.0,
202          tauSaltClimRelax3Dim  = 15552000.0,
203      * 3 cases:
204          1) Use a constant-in-time 3-dim. field
205          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
206          3) Real-time relax. to time-evolving prescribed field
207    o Adding Laplacian-type smoothness constraint on
208      initial and boundary (forcing) controls (ic, bc)
209      * enable at compile-time via
210        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
211      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
212      * Absolute scale somewhat unclear so far
213      * no area weighting was included since no other cost term does so far
214    
215    checkpoint57y_post
216    First step for a NLFS adjoint
217    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
218    o new init. routines for calc_r_star, calc_surf_dr
219    o still need to deal with ini_masks_etc
220    o testreport seemed happy
221    checkpoint57y_pre
222    
223    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
224    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
225    o add new offset feature to offline pkg (plus minor cleanup)
226    o cfc fixes for final year of integration
227    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
228      be in GCHEM_OPTIONS).
229    
230    checkpoint57x_post
231    o fix testreport Pb in multiple test experiment.
232    o cleanup our namelist syntax in verification:
233      - make it more F95 standards compliant (some work still needed)
234      - allows the vast majority of our tests to work with gfortran
235    o Non-Hydrostatic:
236     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
237     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
238    o Allow to apply AB on T,S rather than on AB(gT,gS):
239     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
240     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
241       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
242     - need a "clever" read_pickup to restart from the other AB formulation
243    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
244    o remove some unused variables (reduces number of compiler warnings)
245    o adjoint
246      * Disable useVariableViscosity for adjoint for time being
247        (there are a number of extensive recomputations)
248      * Initialize certain variables needed for adjoint
249    
250    checkpoint57w_post
251    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
252                 fix the singleCpuIO RS version of MDSWRITEFIELD
253       and add a WARNING if using globalFiles=T with multi-processors.
254    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
255      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
256    o tracer advection scheme:
257      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
258       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
259       was not very convenient).
260      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
261       (further tests needed for the implicit DST & Flux-Limiter schemes).
262    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
263      and sRef for convenience, handy, when you want to initialize
264      ptracers in a large domain with a constant non-zero value. Also,
265      untangle ptracers_init.F a little.
266    
267    checkpoint57v_post
268    o change dome exp. to use variable viscosity in side-drag terms.
269    o remove all the files from the cfc_offline test since they are now
270      incorporated into tutorial_cfc_offline which has been producing
271      identical results for a few days of testing
272    o add new parameter: sideDragFactor to enable half-slip-side BC
273      and change side-drag S/R to use viscosity from mom_calc_visc
274      (can switch back by setting sideDragFactor=0.); affects results at
275      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
276       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
277    o vorticity & strain are now computed without masking, to account for
278      no-slip-side BC in variable viscosity calculation ; mask is applied
279      anyway later on, before computing advection/coriolis terms.
280    o modify exp4 to test new obcs support for reading from external files
281      and for passive tracers
282    o fix behavior of ptracers_monitor when monitor output is written to a
283      netcdf-file; still not independent of monitor.F (writes in the same
284      file).
285    o change default value of tRef (put a uniform, meaningful value for ocean
286      & atmos) and initialize sRef (was missing, as Martin mentioned).
287    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
288      to be proportional to enstrophy dissipation length.  Thus,
289       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
290      This is now consistent with Smagorinsky and with the manual.
291    
292    checkpoint57u_post
293    o OBCS and PTRACERS: add open boundary support for passive tracers
294      - either use homogenous (pseudo) v.Neumann conditions or prescribe
295        OB-values from file; this is not different from the way theta and salinity
296        are treated
297      - however, Orlanski-radiation conditions are not supported, and the model
298        will stop if you use pTracers and Orlanski at the same time.
299      - beefed up the rountine obcs_external_fields_load: now only those open
300        boundary values are overwritten with values from files for which there
301        are really files, otherwise the OB-fields remain untouched. This makes
302        it possible to use different OBs at different ends of the domain (as
303        with EXF)
304    o reduce number of exch calls in shap_filt (s2).
305    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
306      truncation level) 4/5 MLAdjust test results (11&12 digits match).
307    
308    checkpoint57t_post
309    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
310    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
311      same truncation, independent of the face number: affects affects several
312      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
313    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
314      note that biharmonic viscosity + no-slip was not tested in any experiment.
315    o fix bug in non-linear free-surf side-drag ; generate new output for
316      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
317    o make mnc honor the writeBinaryPrec flag for most kinds of output
318    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
319    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
320      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
321    o add brackets in multi-terms sum to get same truncation, independent of
322      the face number (manage to get exactly same value of gU,gV at the cs-edge)
323      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
324    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
325      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
326      a maximum grid-scale Reynolds number.  Also, changes all length calculations
327      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
328      Suggested values of viscosity parameters found in mom_calc_visc.
329      Many new viscosity diagnostics available.
330    
331    checkpoint57s_post
332    o Add clearing-house for viscosity calculations, mom_calc_visc and
333      correct numerous bugs in LeithD and Smagorinsky discretizations.  
334      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
335      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
336      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
337      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
338      The Strain-Tension form is now called with useStrainTensonVisc=.true.
339      ViscAhStrain and viscAhTension are now retired.
340    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
341    o In response to JMC's bug report, genmake2 now ignores any soft-links
342      that it finds in the *current* directory when searching for files.
343      Soft-links found in any other source directories will still work as
344      they did before.
345    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
346      a C routine to unlimit the stack size
347    o mnc-ify pkg/aim snapshot vars
348    o mnc-ify pkg/land as requested by Daniel
349    o various changes to mnc including:
350      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
351      - output can now be grouped so that all files within a group
352          change the ITER portion of their names in lock-step together
353      - can now read ("global") PER-FACE (in addition to PER-TILE) files
354          and works with both EXCH1 and EXCH2 (but needs more testing)
355      - writing works for all verification test cases w/ g77 on Linux
356    
357    checkpoint57r_post
358    o make MNC variable initialization happen earlier
359    o add diagnostics for (almost) each term of the momentum Eq.
360    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
361    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
362    o remove MINIMAL_TAVE_OUTPUT option ;
363      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
364    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
365      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
366    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
367    o add time-dependent SST, SSS control
368    o cost terms in ecco/ modularized (new cost_generic.F)
369    o cost_averages routines are modularized (new cost_averagesgeneric.F)
370    o new infrastructure for seaice model vs. obs misfits in seaice/
371      * driver from the_main_loop.F is seaice_cost_driver.F
372      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
373      * gradient check in Exp. 6a of natl_box_adjoint/
374    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
375      (see README file)
376    
377    checkpoint57q_post
378    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
379    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
380      - bug was reported by Jean-Michel and Ian Fenty
381    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
382      update exp. cpl_aim+ocn output.
383    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
384      Needed for high-res. runs with large global files
385      to be able to limit tapelev size
386    o Changed some tests for adjoint:
387      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
388      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
389      * global_ocean.90x40x15/ back to default 3-level checkpointing
390    o Modifications to enable scripted COMMON to MODULE conversion
391      * verification/OpenAD/code/ has necessary scripts and description;
392      * converts, compiles and runs successfully;
393    
394    checkpoint57p_post
395    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
396    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
397      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
398    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
399    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
400      (was already the case for dissipation with mom_vecinv,
401       and also the case for grad.PhiHyd when staggered-timeStep)
402      This will allow to put dissipation out-off the AB time-stepping.
403     Unfortunately, affects truncation error. Update output of exp. that "fails"
404      (cg2d matching number) and leave the others for later: front_relax(10),
405      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
406      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
407    
408    checkpoint57o_post
409    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
410      (2) its ready to be documented during the 20050801 DocFest
411    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
412      for ideal_2D_oce and lab_sea on linux_ia32_g77
413    o set to #undef CTRL_SET_OLD_MAXCVARS_30
414      in global1x1_tot/code_seaice_adj to access indices 32, 33
415      (worth another tag)
416    
417    checkpoint57n_post
418    o adding precip control xx_precip 32
419    o adding swflux control xx_swflux 33
420    o Replacing 10 forcing penalty cost routines by 1 generic.
421    o Implementing partitioning in time-mean and variable adjustment
422      for atmos. state.
423    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
424    o in natl_box_adjoint:
425      * updated exp 1 to 10
426        (but does not have time-mean vs. variable split results yet)
427    o updated global1x1/*_seaice_adj/
428      to incorporate latest changes
429    o enable useSingleCpuIO for mdsio vector routines
430      (applies in particular to tapelev I/O)
431    o removed inefficient K-loop in all active_file*control*.F
432    
433    checkpoint57m_post
434    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
435      and advect_cs (use EXCH-2 and standard cs-32 grid files).
436    o pkg/exch2: filling of face-corner halo regions is optional
437      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
438    
439    checkpoint57l_post
440     tag before updating tutorials (pre-release-2)
441    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
442       for output and interpolation of input fields onto model grid)
443    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
444       Affects results of exp. rotating_tank ; update output.txt.
445    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
446          and taking the square quantity and/or using a fraction-weight field.
447    o fix aim_diagnostics_init.F mate numbers.
448    o add mnc output capability to diagnostics/diagstat and update
449      our cvsignore files for the ACSII output generated
450    
451    checkpoint57k_post
452    o lab_sea now uses diagnostics package and provides a suite of
453      new EXF diagnostics output.
454    
455    checkpoint57j_post
456    o exf
457      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
458        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
459        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
460      * extended diagnostics output
461        - now includes all EXF variables
462        - hs, hl moved to common block
463        - separate S/R for diagnostics, called after ctrl vector is added
464        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
465        - EXFqnet contains true Qnet (i.e. includes qsw)
466      * updated verif. lab_sea, global_with_exf
467      * Rearranging hflux (exf_mapfields -> exf_getforcing)
468        to ensure that diagnostics sees a true EXFqnet
469    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
470    o diagnostics pkg: change pointers so that 1 diagnostic can be used
471      several times with different frequencies.
472    o mnc-ify the thsice package as requested by Daniel Enderton
473      - the monitor--MNC output needs work
474      - many attributes need to be added (most are currently blank)
475    o mnc-ify theaim_v23 package as requested by Daniel Enderton
476      - many attributes need to be added (most are currently blank)
477    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
478    o add Sadourny like discretization to the 4th.O vorticity advection scheme
479    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
480      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
481         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
482    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
483     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
484    
485    checkpoint57i_post
486    o Diagnostics package was changed: diagnostic allocation is now deactivated
487      by setting an empty file name in the namelist (used to be by setting 0 frequency)
488    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
489      add 1rst Order upwind vertical Shear.
490    o add a quick fix for A/B checkpointing in OFFLINE mode
491    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
492      end-run around the C/Fortran linking horror in eesup/src/timers.F
493    o added pkg/runclock: allows user to terminate run based on wall clock
494    o added non-hydrostatic scaling parameter: nh_am2
495    o pkg/my82: futile attempt to make results compiler-independent by adding
496      some "_d 0", etc. no effect.
497    o for mnc output, fill the 'T' coordinate var with myTime and create a
498      separate 'iter' variable for iteration count
499    o pkg/diagnostics:
500      add new capability: output of Global/Regional & per-level statistics ;
501      tested against monitor output (including land & thSIce) on various exp.
502    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
503    
504    checkpoint57h_done
505      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
506      data.diagnostics, data.gchem, data.ptracers) is done.
507    
508    o pkg/diagnostics: prepare for Global/Regional statistics.
509      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
510    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
511      and rename it: DIFFERENT_MULTIPLE
512    
513    checkpoint57h_post
514    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
515    o pkg/diagnostics: change output frequency, now in seconds (instead
516      of Nb of iterations). This requires to change data.diagnostics.
517    checkpoint57h_pre
518    
519    o in mnc, let the user create the output dir if both mnc_outdir_date
520      and mnc_outdir_num are false
521    o add fflags() to pkg/diagnostics which allows one to specify, on a
522      per-file basis, the file precision [default behavior is unchanged]
523    o added diagnostics to pkg/kpp, including computation of mixed layer
524      depth based on a temperature/density criterion
525    o updated verification/natl_box to test the new pkg/kpp diagnostics
526    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
527    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
528    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
529      not mnc -- this mistake was found by JMC and is now corrected
530    
531    checkpoint57g_post
532    o add Adams-Bashforth 3rd Order time stepping:
533      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
534      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
535    checkpoint57g_pre
536    
537    o make lambda[Theta,Salt]ClimRelax spatially varying
538      (default remains spatially uniform constant based on tau)
539    o added new control variables
540      * init. uVel, vVel, etanN
541      * lambda[Theta,Salt]ClimRelax
542    o separate masks used for ctrl_pack/unpack 'from write_grid' output
543      (suggested by G. Forget)
544    
545    checkpoint57f_post
546    o add parameter "baseTime" = model base time = time at iteration zero
547      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
548      account for baseTime shift
549    o move Coriolis arrays from PARAMS.h to GRID.h
550    checkpoint57f_pre
551    
552    o mnc-ifying the seaice package
553    o introduced an alternative length scale calculation for use in the limiting
554      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
555    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
556    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
557      as well as grad(vort3).  Made it compatible with both approximate form
558      for the cubed sphere and full form of these gradients.  Added flag
559      useFullLeith to select between approximate and full form.  
560    o add "d0" in getcon.F to reduce differences between compilers/platforms
561      update output.txt of exp. fizhi-gridalt-hs
562    o change port_rand funtion to allow to set the seed.
563    o fix obscure MNC bug involving conversion between reals and integers
564      - it caused no problems with certain (eg. gcc, ifc) compilers but the
565        new version is now more standards-compliant
566    o adjoint-related modifications
567      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
568      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
569      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
570    
571    checkpoint57e_post
572    o Adding eddy stress controls a la Ferreira et al.
573    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
574    
575    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
576      update output.txt of exp. fizhi-gridalt-hs
577    o add more "Z" dimensions and associated coordinate vars to MNC
578    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
579    o parameter calendarDumps: when set, approximate months (30-31 days) and years
580      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
581      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
582      months and years.  Requires pkg/cal.
583    o diagnostics: add pickup functionality
584      - off by default for backwards compatibility
585      - current version only uses MDSIO -- MNC will be added
586    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
587    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
588    
589    checkpoint57d_post
590    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
591    o modify verification/ideal_2D_oce so that it tests the creation of mnc
592      output from the diagnostics package
593    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
594    o make genmake2 more portable by using ".$FS" instead of ".f" for more
595      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
596    o add coordinate variables to the MNC output from the diagnostics package
597    o change MNC-flags default value: true when useMNC=TRUE
598    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
599      the ability (off by default) to read the grid information using MNC
600    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
601    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
602    o do snap-shot diagnostics at the middle of the time-interval (instead of
603      at the end).
604    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
605      new test for AIM with thSIce + slab-ocean
606    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
607    o move state variable diagnostics to the beginning of the time step ;
608      (note: still needs some work specially for snap-shot diagnostics)
609      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
610    
611    checkpoint57c_post
612    o Change testing option (-ieee) to get closer agreement between g77 & ifort
613    o generate new output.txt files on faulks with g77 & the new -ieee option
614    checkpoint57c_pre
615    
616    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
617      update output.txt of exp. global_ocean.90x40x15
618    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
619      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
620    o add saltFlux(+File) forcing capability with periodicExternalForcing
621    o allow to use pkg diagnostics for GM-Redi & ThSIce output
622    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
623    o improvements for the MNC output from DIAGNOSTICS:
624      - correct handling of the unlimitied dimension
625      - all dims now have associated coordinate variables
626      - variables located at U, V, and Corner ("Z") points are now written
627        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
628        *all* data points are output
629    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
630    o added pkg/seaice/seaice_monitor.F
631    o mdsio_readfield.F can now read files visible only to master MPI process.
632    o pkg/seaice: some test code for ice-modified ocean stress
633    o exf_getffields interpolation defaults to bilinear for all scalar forcing
634      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
635      spurious negative numbers for precipitation and humidity.  Will cause
636      some small numerical differences for integrations using pkg/exf/exf_interp.F.
637    o pkg/ctrl/
638      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
639        May be enabled via doPackDiag
640      *  introduce z-scaling of
641         + gradient (doZscalePack) and
642         + control (doZscaleUnpack)
643    o pkg/mdsio/
644      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
645      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
646    
647    checkpoint57b_post
648    o simplify options in diagnostics_fill arguments (remove weird combinations)
649    o fix MNC coordinate variables so that they now contain per-face index
650      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
651      general, EXCH2 grids are only aligned to a "local" coordinate system
652    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
653    o Implement instantaneous output within pkg diagnostics:
654      setting a negative frequency in data.diagnostics produces
655     "snap-shot" output (as opposed to time-average if freq > 0)
656    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
657      NOTE: change ptracer diagnostics name: use 2 characters to work with
658            more than 9 tracers. Add also diagnostics of advect & diffus flux.
659    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
660      becomes the coordinate variable for the 'T' dimension
661    o add CF-style coordinate variables to MNC
662      - just a first cut:  numbers are meaningless on the cubesphere and
663        missing along the T axis but otherwise it works!
664    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
665    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
666    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
667      this is based directly on what the model compute, so that the content of
668      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
669    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
670    o clean up build options files for SunOS, in particular
671      - remove -traditional from xmakedepend
672      - change -xarch=v9 to -xarch=native for f77
673      - restore use of make (not gmake)
674      - add CC=gcc if using g77
675    o changes per discussion of AM, JMC, & EH3 today:
676      - move redundant "grid" variables out of "state" -- in preparation of
677        creating proper CF-style coordinate variables and in recognition
678        that any/all grid variables can be easily copied (eg. w/NCO) from
679        the grid files into any of the other NetCDF files
680      - *always* output grid variables with MDSIO (this will eventually be
681        changed)
682      - output MNC grid file if useMNC is true
683    o every instance of _END_MASTER() has been found and replaced with
684      _END_MASTER( myThid ) in order to satisfy certain picky Sun
685      preprocessors
686    o re-arrange diagnostics pkg initialisation:
687     - allow each package to extend the available diagnostics list
688     - add some checking and fix small problems (multi-threaded, ...)
689     - new S/R diagnostics_fill (replace fill_diagnostics):
690       look through the short list of active diag. (instead of the long list)
691       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
692    
693    checkpoint57a_post
694    o this set of changes restores TAMC compatibility
695      tested for global_ocean.90x40x15 adjoint on trough
696      (what a pain)
697    
698    checkpoint57a_pre
699    o some modifs in tools/build_options for sunos
700    o call ctrl_pack for ctrl at end for optimcycle=0
701    
702    checkpoint57
703    o add horizontal bi-harmonic viscosity for vertical velocity
704      - new parameter viscA4W (defaults to viscA4)
705      - affects only non-hydrostatic code
706      - to be done: no-slip lateral boundary conditions
707    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
708    o implement Implicit Vertical advection for pTracers
709    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
710      (implemented also for implicit vertical diffusion & advection)
711    o OBCS: extend application of tracer open boundary conditions
712      to a strip beyond the boundary of width Olx/Oly
713    o add call monitor to TAF set of required calls (flow directives)
714      and include in natl_box_adjoint
715    o untangle a few ifdefs related to cost, ctrl, autodiff
716      untangel a few ALLOW_ECCO_OPTIMIZATION
717    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
718      (theta2, salt2 in ecco_cost_weights)
719    
720    checkpoint56c_post
721    o OBCS as control variables
722      - update ctrl_ad_diff.list, obcs_ad_diff.list
723      - remove balance of obcs controls from default
724      - fix index bug nobcs in ctrl_init
725      - fix dummy fields filen in ctrl_pack
726      - add dummy weights for obcs
727    o lsopt: comment out fort.94 output
728    o optim:
729      - remove unnecessary header files
730      - adjusted namelists
731      - add xerbla.F to Makefile
732    o exf:
733      - multiple modifications of exf_check_range
734      - unit change in exf_init_runoff from [m/year] to [m/s]
735    o mdsio:
736      - i/o-vector change debugLevel from debLevA to debLevB
737    
738    checkpoint56b_post
739    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
740      is called from DO_THE_MODEL_IO
741      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
742      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
743      - clean up PTRACERS_WRITE_TIMEAVE a little
744    o add another verification experiment that tests both the cfc-pkg and
745      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
746      reactive tendencies treated inline with regular timestepping
747    o testreport previously did a lousy job of comparing small numbers, so
748      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
749      implemented in the little c-progam tmp_cmpnum.c which is embedded in
750      testreport.
751    o ptracers_monitor: bug fix for MPI
752    
753    checkpoint56a_post
754    o GCHEM: finish reorganizating the package
755      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
756        (introduces another 3D-array for each passive tracer, but only if
757        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
758        gchemTendency is not needed because the timestep is done separately)
759      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
760      - GCHEM is now---more or less cleanly---separate from PTRACERS
761      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
762        so clear to me how that should be done in a general way.
763    o CFC: improve formatting of output in CFC_ATMOS
764    o PTRACERS:
765      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
766        that ALL experiments with ptracers enable can be checked. This makes
767        GCHEM_MONITOR obsolete.
768      - include a runtime parameter PTRACERS_monitorFreq that defaults to
769        monitorFreq
770      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
771    o add PTRACERS (PTR0[1-5]) to testreport output
772    o exf_check_range:
773      * default changed to .TRUE.
774      * will check values for niter0 if debLevA, every timestep if debLevB
775      * STOP in exf_check_range if 'out of range'
776      * range chosen generous to allow for potential extema
777      TBD: a version with stricter range
778           permitted range would be runtime parameters
779  o GMredi:  o GMredi:
780    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
781    - 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 784  o GCHEM:
784    - 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
785      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
786    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
787      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
788        this flag is now only visible within GCHEM-pkg routines.
789      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
790        be replaced by a 3D array that is computed before thermodynamics; for
791        this, the tracer ID iTracer had to be included into the parameter list
792        of ptracers_forcing
793      - set up forward_step to call gchem_forcing, that will replace
794        gchem_forcing_int in ptracers_forcing
795      - cleaning up
796  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
797    
798  checkpoint56  checkpoint56

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