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revision 1.365 by heimbach, Mon Oct 11 16:42:30 2004 UTC revision 1.764 by jmc, Thu Jan 11 00:29:41 2007 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 call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
8    o testreport: add option "-skipdir" to skip some test.
9    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
10      momentum calculation.
11    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
12    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
13      remove checkpoint.F and the_correction_step.F (no longer used);
14      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
15    o add option (linFSConserveTr) to correct for tracer source/sink due to
16      Linear Free surface
17    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
18    o pkg/thsice: fix reading mnc-pickups
19    
20    checkpoint58t_post
21    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
22    o pkg/mdsio:
23     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
24       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
25       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
26     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
27     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
28       either MDS_READ_FIELD or MDS_WRITE_FIELD )
29     - new S/R (to replace MDSWRITEMETA), which allows to write more
30       informations (variable names, time ...) to meta files.
31     - modify rdmds.m to give back the meta file content.
32    o pkg/diagnostics: change vertical interpolation to be safer, and more
33       flexible (define p-levels to interpolate to in data.diagnostics);
34      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
35       diagnostic pointer.
36    o pkg/seaice: more cleaning up of seaice_growth, added many comments
37    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
38    o fix multi-category seaice:
39     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
40       SEAICE_MULTICATEGORY
41     - fix short wave heat flux
42    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
43       and allow to use EVP solver. Change forward lab_sea: test both EVP
44       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
45    o Initial check-in of lab_sea adjoint
46      (very similar to natl_box_adjoint/code_seaice)
47      * used C-grid and EVP solver
48      * used KPP, GM/Redi
49      * uses inAdExact=.TRUE.
50      * gradient checks fail for both ADM and TLM
51        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
52        f.d. gradients actually seem more problematic than ADM, TLM gradients;
53        issue is related to forward mismatch between g77 an ifort
54    o pkg/seaice: overhaul of thermodynamics
55     - growth.F and groatb.F are replaced by new routine seaice_growth.F
56     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
57     - move a few global fields out of SEAICE.h into seaice_growth.F and
58       make them 2D (FICE/QNETO/ ...)
59     - remove FO (it is the same as QNETO)
60     - introduce a few local fields to avoid modifying external fields such
61       as atemp, etc.
62    
63    checkpoint58s_post
64    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
65      changed exf_set_gen.F so that
66        genperiod=0 means input file is one time-constant field and
67        genperiod=-12 means input file contains 12 monthly means
68    o CG2D: use pre-computed solver main-diagonal (stored in common block);
69      this affects truncation error ; generate new output file for exp. which
70      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
71        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
72        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
73        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
74        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
75        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
76    o start implementation of deep-atmosphere and anelastic formulation
77    o verification: remove 2nd copy of input files and use script "prepare_run"
78      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
79    o mom_common/vecinv/fluxform: fix a few initialisation isssues
80    o profiles: fix for multithreaded case
81    
82    o diagnostics: rename few diags:
83      s/'PRESSURE'/'RCENTER '/g
84      s/'TICE    '/'oceFreez'/g
85      s/'TAUX    '/'oceTAUX '/g
86      s/'TAUY    '/'oceTAUY '/g
87      s/'SWFLUX  '/'oceQsw  '/g
88      s/DIFx/DFxE/g
89      s/DIFy/DFyE/g
90      and add few ocean-forcing diagnostics:
91      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
92    o modifications to pkg/seaice/growth.F and budget.F, which change results of
93      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
94      as actual snow thickness.  It now refers everywhere to effective snow
95      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
96    
97    checkpoint58r_post
98    o modifications to pkg/seaice/growth.F, which change results of
99      lab_sea experiment: fixes pertain to melting snow over open water, to
100      masking EVAP under sea ice, and to using the correct AREA variable for
101      computations of EVAP, PRECIP, HSNOW, and GHEFF
102    o add ability to read bathy, salt, and theta using MNC (off by def)
103    o add flooding algorithm and advection of HSNOW for pkg/seaice;
104      both are turned off by default and do no change any results
105    o seaice advection with pkg/thsice: a step toward the use of non-linear
106      advection scheme, but #ifdef or commented out for now (requires more EXCH).
107    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
108      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
109      in natl_box (affects results @ truncation level: update output.txt)
110    o multi-threading and IO:
111      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
112      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
113        (needed to work with SingleCpuIO): tested in all verif. exp.
114    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
115      affects the results (but none of the verification test uses this scheme).
116    o Adding some pkg/diagnostics capability to pkg/seaice
117      (will certainly be subject to changes)
118    o ctrl: adding new control variables:
119      lwflux, lwdown, evap, snowprecip, apressure, runoff
120    
121    checkpoint58q_post
122    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
123      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
124      high_res_cube configuration by 4% on Columbia.
125    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
126      add (in global_with_exf/code) a version of EXF_INTERP_READ without
127      dynamical allocation (seems to work in multi-threaded).
128    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
129      single CPU io) so that TAF does not have to see EESUPPORT.h
130    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
131    
132    checkpoint58p_post
133    o obcs: stop if obcs is used with useCDscheme = .true.
134    o shelfice:
135     - fix a sign error so that no slip at shelfice interface works
136     - remove stop for combination non-hydrostatic code and shelfice. That does
137       not mean, that the results are correct, but at least they are numerically
138       stable
139    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
140    o added adjoint exch routined for all exch*3d* routines
141      and updated flow directives
142    
143    checkpoint58o_post
144    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
145      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
146    o change controling S/R for writing pickup file (new S/R do_write_pickup)
147      and clean-up reading/writing of pickup files.
148    o fix local version of read/write pickup (NH part) in rotating_tank/code
149    o simplify EXCH interface:
150     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
151     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
152    o added the regrid package
153    o shelfice:
154     - add a simple boundary layer scheme to reduce noise
155     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
156    
157    checkpoint58n_post
158    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
159       local variable (not in common block).
160    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
161      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
162      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
163        to work with SingleCpuIO.
164    o add "_d 0" to real constant of pkg/cfc subroutines ;
165       update exp. cfc_exemple & tutorial_cfc_offline output files.
166    o multi-threading and IO:
167      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
168        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
169      - barrier before and after reading.
170      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
171      - avoid using MDS_WRITELOCAL for LAND pkg output.
172      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
173        common-block variables ; Allows multi-threading with master-thread IO.
174    o change default MAX_NO_THREADS from 32 to 4 ;
175      and stop cleanly when MAX_NO_THREADS is too small.
176    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
177    
178    checkpoint58m_post
179    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
180       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
181    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
182       keep global_ocean.90x40x15 (for AD testing) with former secondary test
183       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
184    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
185        add MITgcm_tutorials (= code + all the tutorials)
186    o ecco, option to compute cost for total ssh (mean+anom)
187    o consistent with addition of ptracer and ssh in pkg/profiles
188    o profiles: adding ptracer and ssh
189    o testreport: change multi-test output-file name
190      (from output.txt.{name} to output.{name}.txt)
191    o profiles: now ok for mutli-tiles case
192    o seaice: add 4 parameters for different advection schemes for area,
193      (effective) seaice thickness, enthalphy, and snow height. Their default
194      is the standard parameter SEAICEadvScheme
195    o calc_gw:
196     - add cosFacU in zonal viscous flux (harmonic.visc.).
197     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
198       of tutorial_plume_on_slope.
199    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
200    o calc_gw: true flux-form, account for horizontal grid spacing.
201      update rotating_tank results, but not plume_on_slope (affected at
202      truncation level, 11 digits).
203    
204    checkpoint58l_post
205    o calc_gw:
206     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
207     - remove side-drag for now (need to fix it); update plume_on_slope results.
208     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
209    o commit code to make SST/SSS weights spatially variable
210      (based on either variable in-situ or variable initial T/S weights)
211    o pkg/ecco:
212      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
213        now based on horizontally varying weights wthetaLev, wsaltLev
214      * cost_averagesflags now returns year indices in addition to day, month
215      * sflux balance is performed on annual basis
216        (sflxumm, sfluxmm2, bal_sfluxmm)
217      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
218        including separate counting and multipliers
219    o pkg/rbcs
220      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
221    
222    checkpoint58k_post
223    o testreport:
224     - always build in dir. "build" (if not there, mkdir build instead of building
225       & running in input)
226     - run in dir run (if it exists), in build otherwise.
227     - call prepare_run (if input/prepare_run exists)
228     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
229    o pkg/exf modifications to interpolation and rotation routines for more
230       reasonable treatment of North Pole singularity: for tracers North Pole
231       value is set to northernmost zonal-mean value, for zonal velocity it is
232       set to zero, and for meridional velocity it is set to northernmost value.
233    o pkg/exf/exf_check_range.F
234     - add tile index to diagnostics and move stop statement to the very
235       end of the routine.
236    o pkg/diagnostics: (diagnostics_main_init.F)
237      define title of isomorphic variables according to the current config.
238    o pkg/thsice with pkg/seaice dynamics:
239    - fix domain of computation (interior only, required for exf) and do exchanges
240    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
241    o towards a standard way of dealing with multi-threading in MONITOR
242      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
243    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
244       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
245    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
246    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
247    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
248       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
249    o tracer advection:
250     - clean-up and simplify calc_common_factors.F
251     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
252       advection subroutine (but still not used within DST advection S/R)
253    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
254    
255    checkpoint58j_post
256    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
257      from file (collects calls previously in FORWARD_STEP)
258    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
259    o adjoint store dir. adjusted accordingly
260    o genmake2
261      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
262    
263    checkpoint58i_post
264    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
265      on wind stress (SEAICEstressFactor defaults to 1.)
266    o Total number of Timers is finite (<=40): comment out 2 non-essential one
267      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
268    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
269      on CS-grid: no longer loosing mass.
270    o exf & curvilinear-grid: no longer modify longitude xC & xG.
271    o pkg/ggl90: fix sloppy output and fix a bug
272    o pkg/seaice: added SEAICEuseEVPpickup parameter
273      - Set to false in order to start EVP solver with
274        non-EVP pickup files when using SEAICEuseEVP
275      - fix sign error in diffusion in seaice_calc_rhs
276    
277    checkpoint58h_post
278    * Modifications for bottom topography control
279      o replace hFacC by _hFacC at various places
280      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
281      o add non-self-adjoint cg2d_nsa
282      o update autodiff support routines
283      o re-initialise hfac after ctrl_depth_ini
284      o works for 5x5 box, doesnt work for global_ocean.90x40x15
285    * Adding verification for 5x5 box (4-layer) bottom topography control
286    
287    checkpoint58g_post
288    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
289       used for mean seasonal cycle, mean diurnal cycle); add an example
290       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
291    o pkg/ggl90:
292      - add parameter (minimum surface kinetic energy)
293      - fix bug (avoiding division by zero)
294    o couple pkg/thsice to pkg/seaice:
295      - modify advection in seaice to accomodate new scalar fields to be advected
296      - only muliDimAdection scheme work with seaice/thsice
297      - mapping of thsice-variables to seaice-variables, back and forth
298      - does not break the verification experiments, but does not give the
299        desired results either
300    o pkg/seaice
301      - make (default) second order advection a bit less confusing?
302    
303    checkpoint58f_post
304    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
305      to pkg/seaice):
306      - new routines thsice_map_exf and thsice_get_exf provide the interface
307      - add an additional formal parameter to thsice_solve4temp
308    o pkg/exf:
309      - add new fields wspeed, snowprecip (to be able to couple to thsice)
310      - correct Stefan-Boltzmann constant
311      - new parameter for longwave surface emittance
312      - separate some stuff from exf_bulkformulae into new routines  
313        exf_radiation, exf_wind
314      - add new parameters and constants: longwave emissivity for ocean, ice
315        and snow, evaporation parameters over ice
316      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
317        either wind from stress or stress from wind
318    o pkg/thSIce:
319    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
320    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
321       and THSICE_CALC_THICKN
322    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
323    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
324      to make debugging easier.
325    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
326    o pkg/bulk_force:
327      - clean-up comments and parameters ;
328      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
329    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
330      generate new output for test-experiment: aim.5l_cs.thSI
331    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
332      testreport accordingly
333    
334    checkpoint58e_post
335    o SEAICE_CGRID adjoint done
336    o R_STAR adjoint implemented.
337      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
338      * need to sort out init. of h0facc, etc.
339    o Make pkg/profile fully independent of ecco,cost, etc. stuff
340      to be able to use it in pure forward.
341    
342    checkpoint58d_post
343    o upgrade simple test-experiment to tutorial example:
344     step.1: duplicate the experiment and (step.2) will remove the old copy.
345      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
346      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
347      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
348      tutorial_global_oce_biogeo    <- copy of dic_example
349      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
350      tutorial_plume_on_slope       <- copy of plume_on_slope
351      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
352      tutorial_global_oce_optim     <- empty for now (David ?)
353      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
354     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
355    o correct a sign problem in cost_scat.F
356    o obcs and ptracers: fix boundary conditions for advections schemes
357      with larger stencil
358    o thsice adjoint: start
359    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
360      completeness
361    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
362      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
363    o ptracers adjoint:
364      * avoid extensive recomputatations
365      * fix missing re-init. of gptr (missed by TAF)
366    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
367      me to turn off the excessive output to STDOUT that this package produces
368    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
369      and add those terms in Vector-Invariant formulation.
370    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
371      if the control period (xx_hfluxperiod etc) is 0
372    o in profiles pkg, clean routines and fix details
373    o in ecco pkg, reading ssh data:
374      fix problem in case the model does not start at iter0=0
375    o fix mnc-pickup/restart for ptracers
376    o new package prifiles:
377      code to compute profile-based cost by Gael Forget
378      (modifs in ecco, ctrl, autodiff)
379    o Benign bug fix in initialization (spotted by M. Mazloff) of
380      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
381    
382    checkpoint58c_post
383    o adjoint: finish NLFS adjoint and provide reference output in
384      verification/global_ocean.90x40x15/results_ad_nlfs
385    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
386      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
387      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
388      with SEAICE_CGRID defined.
389    o move calendarDumps from "data" to "data.cal" and clean-up the code
390      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
391    o add useEXF & useCAL flags (for now, set in hard-coded way)
392    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
393      (were missing in NH mode, and wrong in quasihydrostatic mode).
394      waiting for Chris updated version of calc_gw to add those CALLs.
395    o fix bug in quasihydrostatic S/R ;
396      add a test for this option: global_ocean.90x40x15.qshyd
397    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
398      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
399    o add on/off flag useOffLine for package OFFLINE
400    o seaice:
401      - modify advection so that it works also on the C-grid
402      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
403        problem in multi-tile runs with C-grid
404      - add flags for clipping ice velocities and/or masking solver forcing
405      - fix drag (ocean on ice) formulation and a bug that caused noise in the
406        C-grid solver
407      - added a few comments to seaice_diffusion.F
408      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
409        are now exclusive)
410      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
411        required re-ordering the code a little:
412       + make DAIRN global variable (defined in SEAICE)
413       + move computation of the viscosities eta and zeta into a new separate
414         routine (because I need to recompute them in seaice_ocean_stress.F)
415    
416    checkpoint58b_post
417    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
418      update output.txt of exp. aim.5l_cs.thSI
419    o various mnc cleanups and improvements:
420      + shrink lookup tables by factor of ~4
421      + better error reporting when running out of lookup space
422      + able to handle longer path/file names (up to 500 chars)
423    o adjoint:
424      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
425      - TBD: "hidden" mom_vecinv recomp. in dynamics
426    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
427     (allow to differentiate between forcing components using new integer flags:
428      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
429     and add new flag to put Dissipation tendency out of Adams-Bashforth.
430    o ecco
431      - enable trend removal from SSH anomaly obs.
432    o adjoint
433      - a fix for PmEpR when #undef EXACT_CONSERV
434      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
435      - try to fix "hidden" recomp. in forward_step for NLFS
436        (NLFS seems broken sometimes after I checked it in)
437    o seaice:
438     - add c-grid version of the dynamic solver:
439       + three new routines that are the c-grid substitute lsr, dynsolver
440         and ostres
441       + put a few fields that were local to dynsolver into global common
442         blocks, so that I can move the computation of stresses etc into
443         seaice_lsr (saves coding but may break the adjoint).
444     - replace more hardwired parameters by runtime parameters
445     - add ice masks that mask the rhs of the implicit solvers where there
446       is no ice (commented out in seaice_dynsolver, because i am not sure
447       if this works properly), eventually this should replace the clipping
448       of ice velocities in seaice_dynsolver to +/-40cm/s.
449    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
450      include it only where its needed
451    o move balancing of fluxes before the call of external_forcing_surf
452    o seaice:
453      - correct units of turning angles (now they are really in degrees)
454      - move computation of GWATX/Y out of main routine into dynsolver
455      - initialize GWATX/Y in seaice_init
456    o Apply mask on Fresh-Water flux (needed for SSH forcing).
457      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
458    o seaice: add runtime flags for turning angles (default to zero)
459    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
460      and trend from exf forcing and ctrl control adjustments
461    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
462      (since checkpoint57x_post)
463    o change the default rotation period to 86164.s = the Earth rotation
464    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
465      and based on a reference stratification. Tested within hs94.cs-32x32x5.
466    o seaice advection: add code for choosing between the default (2nd order
467      central differences) and multiDim advection schemes provided by
468      pkg/generic_advdiff
469    o seaice:
470      - removed all references to SEAICE_GRID.h fields from
471        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
472        (cubed-sphere configuration will change a little)
473      - grid computations in seaice_init are obsolete now.
474      - cleaned up code a little so that is easier to read (hopefully).
475      - added new (better?) discretizations of default advection and diffusion
476        (turn on with SEAICEuseFluxForm)
477      - replace 1 in 3d global fields by kSurface in growth.F
478      
479    checkpoint58a_post
480    o seaice:
481      - bug fix in advect.F
482    o shelfice:
483      - separate shelfice load anomaly from pload (breaks with time
484        dependent forcing), => introduce constant field shelficeLoadAnomaly.
485        Its default is 0., but it may be computed more cleverly from (unknown)
486        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
487        done offline. A good approximation of the pressure load anomaly is
488        necessary to avoid large initial adjustment processes underneath
489        deep-reaching shelfice.
490      - small fix in ISOMIP shelfice_thermodynamics
491      - add more sophisticated thermodynamics of Hellmer (1989), this is
492        now the default
493      - give a few constants more intuitive names
494    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
495      if bulk formulae are used in long integration (especially EmPmR). Turn
496      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
497      if balancePrintMean, the imbalance that is substracted is printed to
498      STDOUT.
499    o fix bug (typo) in obcs_apply_eta.F
500    o add a new package shelfice which enables us to model the circulation
501      underneath shelf-ice with draughts of hundreds of meters.
502     - works
503     - to do: + include improved thermodynamics
504              + check whether kSurfC (from model/inc/SURFACE.h) can be used
505                instead of new field kTopC
506              + can we use topoFile, Ro_surf and existing code in ini_depth.F
507                instead of new field R_shelfIce and new code in ini_depth.F
508                and ini_mask_etc.F?
509              + adjust vertical mixing schemes?
510    o seaice pkg:
511     - add a cpp-flag to include a simple formula for a salinity dependent
512       freezing point of sea water at the surface
513     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
514       meridional stresses are now different (and hopefully correct)
515    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
516       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
517       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
518    o pkg/diagnostics: add options and parameters for regional-statistics
519       diagnostics ; define regions by reading a region-mask from a file
520       (might add other options later)
521    o pkg/bulk_force:
522     - add option and parameters to use AIM surface-flux formulae.
523     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
524       others forcing fields (defined in PARM05, parameter file "data") are loaded
525       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
526     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
527     - use the right EXCH call for uwind,vwind (to work on CS-grid).
528     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
529       and parameters (note: calcWindStress replaces .NOT.readwindstress).
530     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
531    
532    checkpoint58
533    o add "--embed-source" option to genmake2 which, when the supporting
534      tools can be compiled (as determined by genmake2) will turn on the
535      embed_files package which then embeds the entire MITgcm source code
536      (*.[fFhc] + Makefile) used for the build within the executable
537      - requested by CNH but off by default
538      - adds a paltry <9MB to the mitgcmuv executable in most cases
539      - only writes the output when useEMBEDSRC in eedata is true
540    o clean up 3-dim. relaxation codes:
541      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
542      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
543      * Thanks to Tom Haine for testing!
544    
545    checkpoint57z_post
546    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
547      affects output (@ truncation level) of exp. plume_on_slope ; updated.
548    o fix the pickup behavior for obcs in combination with ptracers
549    o fix a bug in ptracers_external_fields_load
550    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
551      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
552    o transfered surface NH pressure to eta field (if exactConserv).
553    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
554         and update lab_sea output.txt file.
555    o completing 3-dim. relaxation code: additional term
556         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
557      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
558      * At compile time, in "EXF_OPTIONS.h" set
559          #define  ALLOW_CLIMTEMP_RELAXATION
560          #define  ALLOW_CLIMSALT_RELAXATION
561      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
562          tauThetaClimRelax3Dim = 15552000.0,
563          tauSaltClimRelax3Dim  = 15552000.0,
564      * 3 cases:
565          1) Use a constant-in-time 3-dim. field
566          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
567          3) Real-time relax. to time-evolving prescribed field
568    o Adding Laplacian-type smoothness constraint on
569      initial and boundary (forcing) controls (ic, bc)
570      * enable at compile-time via
571        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
572      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
573      * Absolute scale somewhat unclear so far
574      * no area weighting was included since no other cost term does so far
575    
576    checkpoint57y_post
577    First step for a NLFS adjoint
578    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
579    o new init. routines for calc_r_star, calc_surf_dr
580    o still need to deal with ini_masks_etc
581    o testreport seemed happy
582    checkpoint57y_pre
583    
584    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
585    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
586    o add new offset feature to offline pkg (plus minor cleanup)
587    o cfc fixes for final year of integration
588    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
589      be in GCHEM_OPTIONS).
590    
591    checkpoint57x_post
592    o fix testreport Pb in multiple test experiment.
593    o cleanup our namelist syntax in verification:
594      - make it more F95 standards compliant (some work still needed)
595      - allows the vast majority of our tests to work with gfortran
596    o Non-Hydrostatic:
597     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
598     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
599    o Allow to apply AB on T,S rather than on AB(gT,gS):
600     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
601     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
602       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
603     - need a "clever" read_pickup to restart from the other AB formulation
604    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
605    o remove some unused variables (reduces number of compiler warnings)
606    o adjoint
607      * Disable useVariableViscosity for adjoint for time being
608        (there are a number of extensive recomputations)
609      * Initialize certain variables needed for adjoint
610    
611    checkpoint57w_post
612    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
613                 fix the singleCpuIO RS version of MDSWRITEFIELD
614       and add a WARNING if using globalFiles=T with multi-processors.
615    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
616      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
617    o tracer advection scheme:
618      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
619       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
620       was not very convenient).
621      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
622       (further tests needed for the implicit DST & Flux-Limiter schemes).
623    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
624      and sRef for convenience, handy, when you want to initialize
625      ptracers in a large domain with a constant non-zero value. Also,
626      untangle ptracers_init.F a little.
627    
628    checkpoint57v_post
629    o change dome exp. to use variable viscosity in side-drag terms.
630    o remove all the files from the cfc_offline test since they are now
631      incorporated into tutorial_cfc_offline which has been producing
632      identical results for a few days of testing
633    o add new parameter: sideDragFactor to enable half-slip-side BC
634      and change side-drag S/R to use viscosity from mom_calc_visc
635      (can switch back by setting sideDragFactor=0.); affects results at
636      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
637       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
638    o vorticity & strain are now computed without masking, to account for
639      no-slip-side BC in variable viscosity calculation ; mask is applied
640      anyway later on, before computing advection/coriolis terms.
641    o modify exp4 to test new obcs support for reading from external files
642      and for passive tracers
643    o fix behavior of ptracers_monitor when monitor output is written to a
644      netcdf-file; still not independent of monitor.F (writes in the same
645      file).
646    o change default value of tRef (put a uniform, meaningful value for ocean
647      & atmos) and initialize sRef (was missing, as Martin mentioned).
648    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
649      to be proportional to enstrophy dissipation length.  Thus,
650       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
651      This is now consistent with Smagorinsky and with the manual.
652    
653    checkpoint57u_post
654    o OBCS and PTRACERS: add open boundary support for passive tracers
655      - either use homogenous (pseudo) v.Neumann conditions or prescribe
656        OB-values from file; this is not different from the way theta and salinity
657        are treated
658      - however, Orlanski-radiation conditions are not supported, and the model
659        will stop if you use pTracers and Orlanski at the same time.
660      - beefed up the rountine obcs_external_fields_load: now only those open
661        boundary values are overwritten with values from files for which there
662        are really files, otherwise the OB-fields remain untouched. This makes
663        it possible to use different OBs at different ends of the domain (as
664        with EXF)
665    o reduce number of exch calls in shap_filt (s2).
666    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
667      truncation level) 4/5 MLAdjust test results (11&12 digits match).
668    
669    checkpoint57t_post
670    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
671    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
672      same truncation, independent of the face number: affects affects several
673      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
674    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
675      note that biharmonic viscosity + no-slip was not tested in any experiment.
676    o fix bug in non-linear free-surf side-drag ; generate new output for
677      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
678    o make mnc honor the writeBinaryPrec flag for most kinds of output
679    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
680    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
681      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
682    o add brackets in multi-terms sum to get same truncation, independent of
683      the face number (manage to get exactly same value of gU,gV at the cs-edge)
684      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
685    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
686      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
687      a maximum grid-scale Reynolds number.  Also, changes all length calculations
688      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
689      Suggested values of viscosity parameters found in mom_calc_visc.
690      Many new viscosity diagnostics available.
691    
692    checkpoint57s_post
693    o Add clearing-house for viscosity calculations, mom_calc_visc and
694      correct numerous bugs in LeithD and Smagorinsky discretizations.  
695      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
696      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
697      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
698      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
699      The Strain-Tension form is now called with useStrainTensonVisc=.true.
700      ViscAhStrain and viscAhTension are now retired.
701    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
702    o In response to JMC's bug report, genmake2 now ignores any soft-links
703      that it finds in the *current* directory when searching for files.
704      Soft-links found in any other source directories will still work as
705      they did before.
706    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
707      a C routine to unlimit the stack size
708    o mnc-ify pkg/aim snapshot vars
709    o mnc-ify pkg/land as requested by Daniel
710    o various changes to mnc including:
711      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
712      - output can now be grouped so that all files within a group
713          change the ITER portion of their names in lock-step together
714      - can now read ("global") PER-FACE (in addition to PER-TILE) files
715          and works with both EXCH1 and EXCH2 (but needs more testing)
716      - writing works for all verification test cases w/ g77 on Linux
717    
718    checkpoint57r_post
719    o make MNC variable initialization happen earlier
720    o add diagnostics for (almost) each term of the momentum Eq.
721    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
722    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
723    o remove MINIMAL_TAVE_OUTPUT option ;
724      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
725    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
726      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
727    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
728    o add time-dependent SST, SSS control
729    o cost terms in ecco/ modularized (new cost_generic.F)
730    o cost_averages routines are modularized (new cost_averagesgeneric.F)
731    o new infrastructure for seaice model vs. obs misfits in seaice/
732      * driver from the_main_loop.F is seaice_cost_driver.F
733      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
734      * gradient check in Exp. 6a of natl_box_adjoint/
735    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
736      (see README file)
737    
738    checkpoint57q_post
739    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
740    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
741      - bug was reported by Jean-Michel and Ian Fenty
742    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
743      update exp. cpl_aim+ocn output.
744    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
745      Needed for high-res. runs with large global files
746      to be able to limit tapelev size
747    o Changed some tests for adjoint:
748      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
749      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
750      * global_ocean.90x40x15/ back to default 3-level checkpointing
751    o Modifications to enable scripted COMMON to MODULE conversion
752      * verification/OpenAD/code/ has necessary scripts and description;
753      * converts, compiles and runs successfully;
754    
755    checkpoint57p_post
756    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
757    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
758      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
759    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
760    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
761      (was already the case for dissipation with mom_vecinv,
762       and also the case for grad.PhiHyd when staggered-timeStep)
763      This will allow to put dissipation out-off the AB time-stepping.
764     Unfortunately, affects truncation error. Update output of exp. that "fails"
765      (cg2d matching number) and leave the others for later: front_relax(10),
766      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
767      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
768    
769    checkpoint57o_post
770    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
771      (2) its ready to be documented during the 20050801 DocFest
772    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
773      for ideal_2D_oce and lab_sea on linux_ia32_g77
774    o set to #undef CTRL_SET_OLD_MAXCVARS_30
775      in global1x1_tot/code_seaice_adj to access indices 32, 33
776      (worth another tag)
777    
778    checkpoint57n_post
779    o adding precip control xx_precip 32
780    o adding swflux control xx_swflux 33
781    o Replacing 10 forcing penalty cost routines by 1 generic.
782    o Implementing partitioning in time-mean and variable adjustment
783      for atmos. state.
784    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
785    o in natl_box_adjoint:
786      * updated exp 1 to 10
787        (but does not have time-mean vs. variable split results yet)
788    o updated global1x1/*_seaice_adj/
789      to incorporate latest changes
790    o enable useSingleCpuIO for mdsio vector routines
791      (applies in particular to tapelev I/O)
792    o removed inefficient K-loop in all active_file*control*.F
793    
794    checkpoint57m_post
795    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
796      and advect_cs (use EXCH-2 and standard cs-32 grid files).
797    o pkg/exch2: filling of face-corner halo regions is optional
798      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
799    
800    checkpoint57l_post
801     tag before updating tutorials (pre-release-2)
802    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
803       for output and interpolation of input fields onto model grid)
804    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
805       Affects results of exp. rotating_tank ; update output.txt.
806    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
807          and taking the square quantity and/or using a fraction-weight field.
808    o fix aim_diagnostics_init.F mate numbers.
809    o add mnc output capability to diagnostics/diagstat and update
810      our cvsignore files for the ACSII output generated
811    
812    checkpoint57k_post
813    o lab_sea now uses diagnostics package and provides a suite of
814      new EXF diagnostics output.
815    
816    checkpoint57j_post
817    o exf
818      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
819        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
820        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
821      * extended diagnostics output
822        - now includes all EXF variables
823        - hs, hl moved to common block
824        - separate S/R for diagnostics, called after ctrl vector is added
825        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
826        - EXFqnet contains true Qnet (i.e. includes qsw)
827      * updated verif. lab_sea, global_with_exf
828      * Rearranging hflux (exf_mapfields -> exf_getforcing)
829        to ensure that diagnostics sees a true EXFqnet
830    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
831    o diagnostics pkg: change pointers so that 1 diagnostic can be used
832      several times with different frequencies.
833    o mnc-ify the thsice package as requested by Daniel Enderton
834      - the monitor--MNC output needs work
835      - many attributes need to be added (most are currently blank)
836    o mnc-ify theaim_v23 package as requested by Daniel Enderton
837      - many attributes need to be added (most are currently blank)
838    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
839    o add Sadourny like discretization to the 4th.O vorticity advection scheme
840    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
841      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
842         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
843    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
844     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
845    
846    checkpoint57i_post
847    o Diagnostics package was changed: diagnostic allocation is now deactivated
848      by setting an empty file name in the namelist (used to be by setting 0 frequency)
849    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
850      add 1rst Order upwind vertical Shear.
851    o add a quick fix for A/B checkpointing in OFFLINE mode
852    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
853      end-run around the C/Fortran linking horror in eesup/src/timers.F
854    o added pkg/runclock: allows user to terminate run based on wall clock
855    o added non-hydrostatic scaling parameter: nh_am2
856    o pkg/my82: futile attempt to make results compiler-independent by adding
857      some "_d 0", etc. no effect.
858    o for mnc output, fill the 'T' coordinate var with myTime and create a
859      separate 'iter' variable for iteration count
860    o pkg/diagnostics:
861      add new capability: output of Global/Regional & per-level statistics ;
862      tested against monitor output (including land & thSIce) on various exp.
863    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
864    
865    checkpoint57h_done
866      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
867      data.diagnostics, data.gchem, data.ptracers) is done.
868    
869    o pkg/diagnostics: prepare for Global/Regional statistics.
870      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
871    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
872      and rename it: DIFFERENT_MULTIPLE
873    
874    checkpoint57h_post
875    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
876    o pkg/diagnostics: change output frequency, now in seconds (instead
877      of Nb of iterations). This requires to change data.diagnostics.
878    checkpoint57h_pre
879    
880    o in mnc, let the user create the output dir if both mnc_outdir_date
881      and mnc_outdir_num are false
882    o add fflags() to pkg/diagnostics which allows one to specify, on a
883      per-file basis, the file precision [default behavior is unchanged]
884    o added diagnostics to pkg/kpp, including computation of mixed layer
885      depth based on a temperature/density criterion
886    o updated verification/natl_box to test the new pkg/kpp diagnostics
887    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
888    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
889    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
890      not mnc -- this mistake was found by JMC and is now corrected
891    
892    checkpoint57g_post
893    o add Adams-Bashforth 3rd Order time stepping:
894      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
895      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
896    checkpoint57g_pre
897    
898    o make lambda[Theta,Salt]ClimRelax spatially varying
899      (default remains spatially uniform constant based on tau)
900    o added new control variables
901      * init. uVel, vVel, etanN
902      * lambda[Theta,Salt]ClimRelax
903    o separate masks used for ctrl_pack/unpack 'from write_grid' output
904      (suggested by G. Forget)
905    
906    checkpoint57f_post
907    o add parameter "baseTime" = model base time = time at iteration zero
908      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
909      account for baseTime shift
910    o move Coriolis arrays from PARAMS.h to GRID.h
911    checkpoint57f_pre
912    
913    o mnc-ifying the seaice package
914    o introduced an alternative length scale calculation for use in the limiting
915      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
916    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
917    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
918      as well as grad(vort3).  Made it compatible with both approximate form
919      for the cubed sphere and full form of these gradients.  Added flag
920      useFullLeith to select between approximate and full form.  
921    o add "d0" in getcon.F to reduce differences between compilers/platforms
922      update output.txt of exp. fizhi-gridalt-hs
923    o change port_rand funtion to allow to set the seed.
924    o fix obscure MNC bug involving conversion between reals and integers
925      - it caused no problems with certain (eg. gcc, ifc) compilers but the
926        new version is now more standards-compliant
927    o adjoint-related modifications
928      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
929      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
930      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
931    
932    checkpoint57e_post
933    o Adding eddy stress controls a la Ferreira et al.
934    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
935    
936    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
937      update output.txt of exp. fizhi-gridalt-hs
938    o add more "Z" dimensions and associated coordinate vars to MNC
939    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
940    o parameter calendarDumps: when set, approximate months (30-31 days) and years
941      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
942      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
943      months and years.  Requires pkg/cal.
944    o diagnostics: add pickup functionality
945      - off by default for backwards compatibility
946      - current version only uses MDSIO -- MNC will be added
947    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
948    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
949    
950    checkpoint57d_post
951    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
952    o modify verification/ideal_2D_oce so that it tests the creation of mnc
953      output from the diagnostics package
954    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
955    o make genmake2 more portable by using ".$FS" instead of ".f" for more
956      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
957    o add coordinate variables to the MNC output from the diagnostics package
958    o change MNC-flags default value: true when useMNC=TRUE
959    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
960      the ability (off by default) to read the grid information using MNC
961    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
962    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
963    o do snap-shot diagnostics at the middle of the time-interval (instead of
964      at the end).
965    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
966      new test for AIM with thSIce + slab-ocean
967    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
968    o move state variable diagnostics to the beginning of the time step ;
969      (note: still needs some work specially for snap-shot diagnostics)
970      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
971    
972    checkpoint57c_post
973    o Change testing option (-ieee) to get closer agreement between g77 & ifort
974    o generate new output.txt files on faulks with g77 & the new -ieee option
975    checkpoint57c_pre
976    
977    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
978      update output.txt of exp. global_ocean.90x40x15
979    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
980      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
981    o add saltFlux(+File) forcing capability with periodicExternalForcing
982    o allow to use pkg diagnostics for GM-Redi & ThSIce output
983    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
984    o improvements for the MNC output from DIAGNOSTICS:
985      - correct handling of the unlimitied dimension
986      - all dims now have associated coordinate variables
987      - variables located at U, V, and Corner ("Z") points are now written
988        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
989        *all* data points are output
990    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
991    o added pkg/seaice/seaice_monitor.F
992    o mdsio_readfield.F can now read files visible only to master MPI process.
993    o pkg/seaice: some test code for ice-modified ocean stress
994    o exf_getffields interpolation defaults to bilinear for all scalar forcing
995      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
996      spurious negative numbers for precipitation and humidity.  Will cause
997      some small numerical differences for integrations using pkg/exf/exf_interp.F.
998    o pkg/ctrl/
999      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1000        May be enabled via doPackDiag
1001      *  introduce z-scaling of
1002         + gradient (doZscalePack) and
1003         + control (doZscaleUnpack)
1004    o pkg/mdsio/
1005      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1006      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1007    
1008    checkpoint57b_post
1009    o simplify options in diagnostics_fill arguments (remove weird combinations)
1010    o fix MNC coordinate variables so that they now contain per-face index
1011      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1012      general, EXCH2 grids are only aligned to a "local" coordinate system
1013    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1014    o Implement instantaneous output within pkg diagnostics:
1015      setting a negative frequency in data.diagnostics produces
1016     "snap-shot" output (as opposed to time-average if freq > 0)
1017    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1018      NOTE: change ptracer diagnostics name: use 2 characters to work with
1019            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1020    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1021      becomes the coordinate variable for the 'T' dimension
1022    o add CF-style coordinate variables to MNC
1023      - just a first cut:  numbers are meaningless on the cubesphere and
1024        missing along the T axis but otherwise it works!
1025    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1026    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1027    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1028      this is based directly on what the model compute, so that the content of
1029      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1030    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1031    o clean up build options files for SunOS, in particular
1032      - remove -traditional from xmakedepend
1033      - change -xarch=v9 to -xarch=native for f77
1034      - restore use of make (not gmake)
1035      - add CC=gcc if using g77
1036    o changes per discussion of AM, JMC, & EH3 today:
1037      - move redundant "grid" variables out of "state" -- in preparation of
1038        creating proper CF-style coordinate variables and in recognition
1039        that any/all grid variables can be easily copied (eg. w/NCO) from
1040        the grid files into any of the other NetCDF files
1041      - *always* output grid variables with MDSIO (this will eventually be
1042        changed)
1043      - output MNC grid file if useMNC is true
1044    o every instance of _END_MASTER() has been found and replaced with
1045      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1046      preprocessors
1047    o re-arrange diagnostics pkg initialisation:
1048     - allow each package to extend the available diagnostics list
1049     - add some checking and fix small problems (multi-threaded, ...)
1050     - new S/R diagnostics_fill (replace fill_diagnostics):
1051       look through the short list of active diag. (instead of the long list)
1052       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1053    
1054    checkpoint57a_post
1055    o this set of changes restores TAMC compatibility
1056      tested for global_ocean.90x40x15 adjoint on trough
1057      (what a pain)
1058    
1059    checkpoint57a_pre
1060    o some modifs in tools/build_options for sunos
1061    o call ctrl_pack for ctrl at end for optimcycle=0
1062    
1063    checkpoint57
1064    o add horizontal bi-harmonic viscosity for vertical velocity
1065      - new parameter viscA4W (defaults to viscA4)
1066      - affects only non-hydrostatic code
1067      - to be done: no-slip lateral boundary conditions
1068    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1069    o implement Implicit Vertical advection for pTracers
1070    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1071      (implemented also for implicit vertical diffusion & advection)
1072    o OBCS: extend application of tracer open boundary conditions
1073      to a strip beyond the boundary of width Olx/Oly
1074    o add call monitor to TAF set of required calls (flow directives)
1075      and include in natl_box_adjoint
1076    o untangle a few ifdefs related to cost, ctrl, autodiff
1077      untangel a few ALLOW_ECCO_OPTIMIZATION
1078    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1079      (theta2, salt2 in ecco_cost_weights)
1080    
1081    checkpoint56c_post
1082    o OBCS as control variables
1083      - update ctrl_ad_diff.list, obcs_ad_diff.list
1084      - remove balance of obcs controls from default
1085      - fix index bug nobcs in ctrl_init
1086      - fix dummy fields filen in ctrl_pack
1087      - add dummy weights for obcs
1088    o lsopt: comment out fort.94 output
1089    o optim:
1090      - remove unnecessary header files
1091      - adjusted namelists
1092      - add xerbla.F to Makefile
1093    o exf:
1094      - multiple modifications of exf_check_range
1095      - unit change in exf_init_runoff from [m/year] to [m/s]
1096    o mdsio:
1097      - i/o-vector change debugLevel from debLevA to debLevB
1098    
1099    checkpoint56b_post
1100    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1101      is called from DO_THE_MODEL_IO
1102      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1103      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1104      - clean up PTRACERS_WRITE_TIMEAVE a little
1105    o add another verification experiment that tests both the cfc-pkg and
1106      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1107      reactive tendencies treated inline with regular timestepping
1108    o testreport previously did a lousy job of comparing small numbers, so
1109      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1110      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1111      testreport.
1112    o ptracers_monitor: bug fix for MPI
1113    
1114    checkpoint56a_post
1115    o GCHEM: finish reorganizating the package
1116      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1117        (introduces another 3D-array for each passive tracer, but only if
1118        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1119        gchemTendency is not needed because the timestep is done separately)
1120      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1121      - GCHEM is now---more or less cleanly---separate from PTRACERS
1122      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1123        so clear to me how that should be done in a general way.
1124    o CFC: improve formatting of output in CFC_ATMOS
1125    o PTRACERS:
1126      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1127        that ALL experiments with ptracers enable can be checked. This makes
1128        GCHEM_MONITOR obsolete.
1129      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1130        monitorFreq
1131      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1132    o add PTRACERS (PTR0[1-5]) to testreport output
1133    o exf_check_range:
1134      * default changed to .TRUE.
1135      * will check values for niter0 if debLevA, every timestep if debLevB
1136      * STOP in exf_check_range if 'out of range'
1137      * range chosen generous to allow for potential extema
1138      TBD: a version with stricter range
1139           permitted range would be runtime parameters
1140    o GMredi:
1141      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1142      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1143      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1144    o GCHEM:
1145      - move call to GCHEM_FORCING_SEP, so that it is now called before
1146        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1147      - introduced a useGCHEM runtime flag and applied it everywhere.
1148      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1149        this flag is now only visible within GCHEM-pkg routines.
1150      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1151        be replaced by a 3D array that is computed before thermodynamics; for
1152        this, the tracer ID iTracer had to be included into the parameter list
1153        of ptracers_forcing
1154      - set up forward_step to call gchem_forcing, that will replace
1155        gchem_forcing_int in ptracers_forcing
1156      - cleaning up
1157    o small cleaning of exch2: remove files that are also in eesupp/src
1158    
1159    checkpoint56
1160    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1161    o mnc: cleanup "full" files--fixes out-of-memory problem
1162    o ECCO-GODAE
1163      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1164      * fully merged and updated from SIO code
1165        windstress sign change affects
1166        - exf_inscal_[u/v]stress
1167        - sign of xx_tau[u/v] adjustments
1168        - signs in cost_scat
1169      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1170      * natl_box_adjoint updated and compressed
1171      * 2-level checkpoint switch added
1172        (tested in EXP. 1 of natl_box_adjoint)
1173      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1174    o SVD
1175      * first complete, non-hacked version for SVD calculations
1176      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1177        performed via direct access files admtlm_vector.it????
1178        (via ctrl_[un]pack)
1179      * optimcycle is used for ARPACK iteration counter
1180        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1181      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1182        and add linear transforms where necessary
1183      * controls are initial/final SST, SSS (can be extended; need to check
1184        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1185    o mdsio: filename info to both stderr, stdout
1186    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1187      from sign change
1188    
1189    checkpoint55j_post
1190    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1191      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1192    o add consistent build directories and .cvsignore files to verification
1193    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1194    o make all subroutines 30 or less characters in length for certain older
1195      compilers to work (a thorough search only turns up two routines in
1196      pkg/ptracers)
1197    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1198      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1199    
1200    checkpoint55i_post
1201    o change arrays for total vertical diffusivity (2.D if explicit,
1202      3.D if implicit) ; each ptracer uses its own background value.
1203    o added mnc/NetCDF output capability to ocn_compon_interf
1204      - added bits to verification/cpl_aim+ocn so that it can run on
1205        ITRDA and other clusters without the mpirun "-wd" option
1206    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1207      configuration
1208    o give MNC the ability to create additional files rather than
1209      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1210      - the default is just less than 2GB which is a practical limit
1211        on many systems
1212    o Compute the non-local term using either KPP vertical diffusivity (=default)
1213       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1214    
1215    checkpoint55h_post
1216    o add verification test "vermix"
1217    o remove all the *_ioinc flags and replace with the single global
1218      outputTypesInclusive flag
1219    o allow to set a vertical profile of vertical diffusivity for T & S
1220    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1221    o useMNC moved from data.mnc to data.pkg
1222    
1223    checkpoint55g_post
1224    o Renaming carbon AD experiments to comply with testreport conventions
1225    o Updating adjoint of Held-Suarez hs94.1x64x5
1226    o Fixing directives for non-ECCO forward_step, after ECCO directives
1227      have been fixed to avoid recomp. of do_oceanic_phys
1228      Works well for global_ocean.90x40x15,
1229      but recomp. issue remains for carbon
1230    o Updating adjoint output for natl_box_adjoint after
1231      pkg/ecco has been modified (see taga c55d_post)
1232    
1233    checkpoint55f_post
1234    o rename to timeave_init_fixed
1235    
1236    checkpoint55e_post
1237    o some delicate re-shuffle of store directives to avoid one
1238      extra call of do_oceanic_physics
1239      affects ecco_the_main_loop.F, do_oceanic_physics.F
1240      checkpoint_lev1_directives.h
1241    o NB: this may break global_ocean adjoint temporarily,
1242      but it is clear how to fix it. Will do later, need this now.
1243    
1244  checkpoint55d_post  checkpoint55d_post
1245  o ECCO specific cost function terms (up-to-date with 1x1 runs)  o ECCO specific cost function terms (up-to-date with 1x1 runs)
1246  o ecco_cost_weights is modified to 1x1 runs  o ecco_cost_weights is modified to 1x1 runs

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