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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.778 by mlosch, Wed Mar 14 15:44:24 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 shelfice: add a few diagnostics
8    
9    checkpoint58w_post
10    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
11      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
12      (and replace horiVertRatio in NH code).
13      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
14                         and tutorial_plume_on_slope (sensitive to truncation)
15    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
16      directly to drive seaice model (C-grid only)
17    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
18     - reintroduce computation of wind from stress,
19     - compute tau (in exf_bulkformulae.F) from windstress averaged to
20       mass points to avoid tau = 0
21     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
22    o rdmnc.m: make it work with "global" files created with gluemnc
23    o rdmnc.m : some improvements in dealing with singleton dimension
24      (tested on all testreport mnc output files).
25    o genmake2: disable pkg/profiles if netcdf test fails.
26    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
27    o move call to cal_readparms up to make calendar parameters/variable available
28      to all packages
29    
30    checkpoint58v_post
31    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
32      useDynP_inEos_Zc tested.
33    o pkg/exf: changes to properly interpolate/mask/scale initial fields
34    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
35      and portions thereof.  See read_cs.txt for description and examples.
36    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
37      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
38      following the great-circle arc between those 2 points.
39    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
40      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
41    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
42     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
43     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
44     - still needs work (not working with some options ; efficiency to improve)
45       and serious testing.
46     - use this scheme for temperature & salinity in 2 advection test exp.:
47       advect_xy & advect_xz, respectively.
48    
49    checkpoint58u_post
50    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
51    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
52    o testreport: add option "-skipdir" to skip some test.
53    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
54      momentum calculation.
55    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
56    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
57      remove checkpoint.F and the_correction_step.F (no longer used);
58      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
59    o add option (linFSConserveTr) to correct for tracer source/sink due to
60      Linear Free surface
61    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
62    o pkg/thsice: fix reading mnc-pickups
63    
64    checkpoint58t_post
65    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
66    o pkg/mdsio:
67     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
68       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
69       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
70     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
71     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
72       either MDS_READ_FIELD or MDS_WRITE_FIELD )
73     - new S/R (to replace MDSWRITEMETA), which allows to write more
74       informations (variable names, time ...) to meta files.
75     - modify rdmds.m to give back the meta file content.
76    o pkg/diagnostics: change vertical interpolation to be safer, and more
77       flexible (define p-levels to interpolate to in data.diagnostics);
78      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
79       diagnostic pointer.
80    o pkg/seaice: more cleaning up of seaice_growth, added many comments
81    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
82    o fix multi-category seaice:
83     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
84       SEAICE_MULTICATEGORY
85     - fix short wave heat flux
86    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
87       and allow to use EVP solver. Change forward lab_sea: test both EVP
88       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
89    o Initial check-in of lab_sea adjoint
90      (very similar to natl_box_adjoint/code_seaice)
91      * used C-grid and EVP solver
92      * used KPP, GM/Redi
93      * uses inAdExact=.TRUE.
94      * gradient checks fail for both ADM and TLM
95        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
96        f.d. gradients actually seem more problematic than ADM, TLM gradients;
97        issue is related to forward mismatch between g77 an ifort
98    o pkg/seaice: overhaul of thermodynamics
99     - growth.F and groatb.F are replaced by new routine seaice_growth.F
100     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
101     - move a few global fields out of SEAICE.h into seaice_growth.F and
102       make them 2D (FICE/QNETO/ ...)
103     - remove FO (it is the same as QNETO)
104     - introduce a few local fields to avoid modifying external fields such
105       as atemp, etc.
106    
107    checkpoint58s_post
108    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
109      changed exf_set_gen.F so that
110        genperiod=0 means input file is one time-constant field and
111        genperiod=-12 means input file contains 12 monthly means
112    o CG2D: use pre-computed solver main-diagonal (stored in common block);
113      this affects truncation error ; generate new output file for exp. which
114      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
115        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
116        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
117        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
118        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
119        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
120    o start implementation of deep-atmosphere and anelastic formulation
121    o verification: remove 2nd copy of input files and use script "prepare_run"
122      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
123    o mom_common/vecinv/fluxform: fix a few initialisation isssues
124    o profiles: fix for multithreaded case
125    
126    o diagnostics: rename few diags:
127      s/'PRESSURE'/'RCENTER '/g
128      s/'TICE    '/'oceFreez'/g
129      s/'TAUX    '/'oceTAUX '/g
130      s/'TAUY    '/'oceTAUY '/g
131      s/'SWFLUX  '/'oceQsw  '/g
132      s/DIFx/DFxE/g
133      s/DIFy/DFyE/g
134      and add few ocean-forcing diagnostics:
135      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
136    o modifications to pkg/seaice/growth.F and budget.F, which change results of
137      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
138      as actual snow thickness.  It now refers everywhere to effective snow
139      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
140    
141    checkpoint58r_post
142    o modifications to pkg/seaice/growth.F, which change results of
143      lab_sea experiment: fixes pertain to melting snow over open water, to
144      masking EVAP under sea ice, and to using the correct AREA variable for
145      computations of EVAP, PRECIP, HSNOW, and GHEFF
146    o add ability to read bathy, salt, and theta using MNC (off by def)
147    o add flooding algorithm and advection of HSNOW for pkg/seaice;
148      both are turned off by default and do no change any results
149    o seaice advection with pkg/thsice: a step toward the use of non-linear
150      advection scheme, but #ifdef or commented out for now (requires more EXCH).
151    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
152      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
153      in natl_box (affects results @ truncation level: update output.txt)
154    o multi-threading and IO:
155      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
156      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
157        (needed to work with SingleCpuIO): tested in all verif. exp.
158    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
159      affects the results (but none of the verification test uses this scheme).
160    o Adding some pkg/diagnostics capability to pkg/seaice
161      (will certainly be subject to changes)
162    o ctrl: adding new control variables:
163      lwflux, lwdown, evap, snowprecip, apressure, runoff
164    
165    checkpoint58q_post
166    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
167      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
168      high_res_cube configuration by 4% on Columbia.
169    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
170      add (in global_with_exf/code) a version of EXF_INTERP_READ without
171      dynamical allocation (seems to work in multi-threaded).
172    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
173      single CPU io) so that TAF does not have to see EESUPPORT.h
174    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
175    
176    checkpoint58p_post
177    o obcs: stop if obcs is used with useCDscheme = .true.
178    o shelfice:
179     - fix a sign error so that no slip at shelfice interface works
180     - remove stop for combination non-hydrostatic code and shelfice. That does
181       not mean, that the results are correct, but at least they are numerically
182       stable
183    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
184    o added adjoint exch routined for all exch*3d* routines
185      and updated flow directives
186    
187    checkpoint58o_post
188    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
189      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
190    o change controling S/R for writing pickup file (new S/R do_write_pickup)
191      and clean-up reading/writing of pickup files.
192    o fix local version of read/write pickup (NH part) in rotating_tank/code
193    o simplify EXCH interface:
194     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
195     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
196    o added the regrid package
197    o shelfice:
198     - add a simple boundary layer scheme to reduce noise
199     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
200    
201    checkpoint58n_post
202    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
203       local variable (not in common block).
204    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
205      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
206      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
207        to work with SingleCpuIO.
208    o add "_d 0" to real constant of pkg/cfc subroutines ;
209       update exp. cfc_exemple & tutorial_cfc_offline output files.
210    o multi-threading and IO:
211      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
212        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
213      - barrier before and after reading.
214      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
215      - avoid using MDS_WRITELOCAL for LAND pkg output.
216      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
217        common-block variables ; Allows multi-threading with master-thread IO.
218    o change default MAX_NO_THREADS from 32 to 4 ;
219      and stop cleanly when MAX_NO_THREADS is too small.
220    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
221    
222    checkpoint58m_post
223    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
224       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
225    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
226       keep global_ocean.90x40x15 (for AD testing) with former secondary test
227       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
228    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
229        add MITgcm_tutorials (= code + all the tutorials)
230    o ecco, option to compute cost for total ssh (mean+anom)
231    o consistent with addition of ptracer and ssh in pkg/profiles
232    o profiles: adding ptracer and ssh
233    o testreport: change multi-test output-file name
234      (from output.txt.{name} to output.{name}.txt)
235    o profiles: now ok for mutli-tiles case
236    o seaice: add 4 parameters for different advection schemes for area,
237      (effective) seaice thickness, enthalphy, and snow height. Their default
238      is the standard parameter SEAICEadvScheme
239    o calc_gw:
240     - add cosFacU in zonal viscous flux (harmonic.visc.).
241     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
242       of tutorial_plume_on_slope.
243    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
244    o calc_gw: true flux-form, account for horizontal grid spacing.
245      update rotating_tank results, but not plume_on_slope (affected at
246      truncation level, 11 digits).
247    
248    checkpoint58l_post
249    o calc_gw:
250     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
251     - remove side-drag for now (need to fix it); update plume_on_slope results.
252     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
253    o commit code to make SST/SSS weights spatially variable
254      (based on either variable in-situ or variable initial T/S weights)
255    o pkg/ecco:
256      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
257        now based on horizontally varying weights wthetaLev, wsaltLev
258      * cost_averagesflags now returns year indices in addition to day, month
259      * sflux balance is performed on annual basis
260        (sflxumm, sfluxmm2, bal_sfluxmm)
261      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
262        including separate counting and multipliers
263    o pkg/rbcs
264      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
265    
266    checkpoint58k_post
267    o testreport:
268     - always build in dir. "build" (if not there, mkdir build instead of building
269       & running in input)
270     - run in dir run (if it exists), in build otherwise.
271     - call prepare_run (if input/prepare_run exists)
272     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
273    o pkg/exf modifications to interpolation and rotation routines for more
274       reasonable treatment of North Pole singularity: for tracers North Pole
275       value is set to northernmost zonal-mean value, for zonal velocity it is
276       set to zero, and for meridional velocity it is set to northernmost value.
277    o pkg/exf/exf_check_range.F
278     - add tile index to diagnostics and move stop statement to the very
279       end of the routine.
280    o pkg/diagnostics: (diagnostics_main_init.F)
281      define title of isomorphic variables according to the current config.
282    o pkg/thsice with pkg/seaice dynamics:
283    - fix domain of computation (interior only, required for exf) and do exchanges
284    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
285    o towards a standard way of dealing with multi-threading in MONITOR
286      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
287    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
288       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
289    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
290    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
291    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
292       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
293    o tracer advection:
294     - clean-up and simplify calc_common_factors.F
295     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
296       advection subroutine (but still not used within DST advection S/R)
297    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
298    
299    checkpoint58j_post
300    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
301      from file (collects calls previously in FORWARD_STEP)
302    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
303    o adjoint store dir. adjusted accordingly
304    o genmake2
305      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
306    
307    checkpoint58i_post
308    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
309      on wind stress (SEAICEstressFactor defaults to 1.)
310    o Total number of Timers is finite (<=40): comment out 2 non-essential one
311      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
312    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
313      on CS-grid: no longer loosing mass.
314    o exf & curvilinear-grid: no longer modify longitude xC & xG.
315    o pkg/ggl90: fix sloppy output and fix a bug
316    o pkg/seaice: added SEAICEuseEVPpickup parameter
317      - Set to false in order to start EVP solver with
318        non-EVP pickup files when using SEAICEuseEVP
319      - fix sign error in diffusion in seaice_calc_rhs
320    
321    checkpoint58h_post
322    * Modifications for bottom topography control
323      o replace hFacC by _hFacC at various places
324      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
325      o add non-self-adjoint cg2d_nsa
326      o update autodiff support routines
327      o re-initialise hfac after ctrl_depth_ini
328      o works for 5x5 box, doesnt work for global_ocean.90x40x15
329    * Adding verification for 5x5 box (4-layer) bottom topography control
330    
331    checkpoint58g_post
332    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
333       used for mean seasonal cycle, mean diurnal cycle); add an example
334       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
335    o pkg/ggl90:
336      - add parameter (minimum surface kinetic energy)
337      - fix bug (avoiding division by zero)
338    o couple pkg/thsice to pkg/seaice:
339      - modify advection in seaice to accomodate new scalar fields to be advected
340      - only muliDimAdection scheme work with seaice/thsice
341      - mapping of thsice-variables to seaice-variables, back and forth
342      - does not break the verification experiments, but does not give the
343        desired results either
344    o pkg/seaice
345      - make (default) second order advection a bit less confusing?
346    
347    checkpoint58f_post
348    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
349      to pkg/seaice):
350      - new routines thsice_map_exf and thsice_get_exf provide the interface
351      - add an additional formal parameter to thsice_solve4temp
352    o pkg/exf:
353      - add new fields wspeed, snowprecip (to be able to couple to thsice)
354      - correct Stefan-Boltzmann constant
355      - new parameter for longwave surface emittance
356      - separate some stuff from exf_bulkformulae into new routines  
357        exf_radiation, exf_wind
358      - add new parameters and constants: longwave emissivity for ocean, ice
359        and snow, evaporation parameters over ice
360      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
361        either wind from stress or stress from wind
362    o pkg/thSIce:
363    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
364    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
365       and THSICE_CALC_THICKN
366    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
367    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
368      to make debugging easier.
369    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
370    o pkg/bulk_force:
371      - clean-up comments and parameters ;
372      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
373    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
374      generate new output for test-experiment: aim.5l_cs.thSI
375    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
376      testreport accordingly
377    
378    checkpoint58e_post
379    o SEAICE_CGRID adjoint done
380    o R_STAR adjoint implemented.
381      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
382      * need to sort out init. of h0facc, etc.
383    o Make pkg/profile fully independent of ecco,cost, etc. stuff
384      to be able to use it in pure forward.
385    
386    checkpoint58d_post
387    o upgrade simple test-experiment to tutorial example:
388     step.1: duplicate the experiment and (step.2) will remove the old copy.
389      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
390      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
391      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
392      tutorial_global_oce_biogeo    <- copy of dic_example
393      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
394      tutorial_plume_on_slope       <- copy of plume_on_slope
395      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
396      tutorial_global_oce_optim     <- empty for now (David ?)
397      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
398     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
399    o correct a sign problem in cost_scat.F
400    o obcs and ptracers: fix boundary conditions for advections schemes
401      with larger stencil
402    o thsice adjoint: start
403    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
404      completeness
405    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
406      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
407    o ptracers adjoint:
408      * avoid extensive recomputatations
409      * fix missing re-init. of gptr (missed by TAF)
410    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
411      me to turn off the excessive output to STDOUT that this package produces
412    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
413      and add those terms in Vector-Invariant formulation.
414    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
415      if the control period (xx_hfluxperiod etc) is 0
416    o in profiles pkg, clean routines and fix details
417    o in ecco pkg, reading ssh data:
418      fix problem in case the model does not start at iter0=0
419    o fix mnc-pickup/restart for ptracers
420    o new package prifiles:
421      code to compute profile-based cost by Gael Forget
422      (modifs in ecco, ctrl, autodiff)
423    o Benign bug fix in initialization (spotted by M. Mazloff) of
424      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
425    
426    checkpoint58c_post
427    o adjoint: finish NLFS adjoint and provide reference output in
428      verification/global_ocean.90x40x15/results_ad_nlfs
429    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
430      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
431      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
432      with SEAICE_CGRID defined.
433    o move calendarDumps from "data" to "data.cal" and clean-up the code
434      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
435    o add useEXF & useCAL flags (for now, set in hard-coded way)
436    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
437      (were missing in NH mode, and wrong in quasihydrostatic mode).
438      waiting for Chris updated version of calc_gw to add those CALLs.
439    o fix bug in quasihydrostatic S/R ;
440      add a test for this option: global_ocean.90x40x15.qshyd
441    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
442      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
443    o add on/off flag useOffLine for package OFFLINE
444    o seaice:
445      - modify advection so that it works also on the C-grid
446      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
447        problem in multi-tile runs with C-grid
448      - add flags for clipping ice velocities and/or masking solver forcing
449      - fix drag (ocean on ice) formulation and a bug that caused noise in the
450        C-grid solver
451      - added a few comments to seaice_diffusion.F
452      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
453        are now exclusive)
454      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
455        required re-ordering the code a little:
456       + make DAIRN global variable (defined in SEAICE)
457       + move computation of the viscosities eta and zeta into a new separate
458         routine (because I need to recompute them in seaice_ocean_stress.F)
459    
460    checkpoint58b_post
461    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
462      update output.txt of exp. aim.5l_cs.thSI
463    o various mnc cleanups and improvements:
464      + shrink lookup tables by factor of ~4
465      + better error reporting when running out of lookup space
466      + able to handle longer path/file names (up to 500 chars)
467    o adjoint:
468      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
469      - TBD: "hidden" mom_vecinv recomp. in dynamics
470    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
471     (allow to differentiate between forcing components using new integer flags:
472      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
473     and add new flag to put Dissipation tendency out of Adams-Bashforth.
474    o ecco
475      - enable trend removal from SSH anomaly obs.
476    o adjoint
477      - a fix for PmEpR when #undef EXACT_CONSERV
478      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
479      - try to fix "hidden" recomp. in forward_step for NLFS
480        (NLFS seems broken sometimes after I checked it in)
481    o seaice:
482     - add c-grid version of the dynamic solver:
483       + three new routines that are the c-grid substitute lsr, dynsolver
484         and ostres
485       + put a few fields that were local to dynsolver into global common
486         blocks, so that I can move the computation of stresses etc into
487         seaice_lsr (saves coding but may break the adjoint).
488     - replace more hardwired parameters by runtime parameters
489     - add ice masks that mask the rhs of the implicit solvers where there
490       is no ice (commented out in seaice_dynsolver, because i am not sure
491       if this works properly), eventually this should replace the clipping
492       of ice velocities in seaice_dynsolver to +/-40cm/s.
493    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
494      include it only where its needed
495    o move balancing of fluxes before the call of external_forcing_surf
496    o seaice:
497      - correct units of turning angles (now they are really in degrees)
498      - move computation of GWATX/Y out of main routine into dynsolver
499      - initialize GWATX/Y in seaice_init
500    o Apply mask on Fresh-Water flux (needed for SSH forcing).
501      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
502    o seaice: add runtime flags for turning angles (default to zero)
503    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
504      and trend from exf forcing and ctrl control adjustments
505    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
506      (since checkpoint57x_post)
507    o change the default rotation period to 86164.s = the Earth rotation
508    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
509      and based on a reference stratification. Tested within hs94.cs-32x32x5.
510    o seaice advection: add code for choosing between the default (2nd order
511      central differences) and multiDim advection schemes provided by
512      pkg/generic_advdiff
513    o seaice:
514      - removed all references to SEAICE_GRID.h fields from
515        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
516        (cubed-sphere configuration will change a little)
517      - grid computations in seaice_init are obsolete now.
518      - cleaned up code a little so that is easier to read (hopefully).
519      - added new (better?) discretizations of default advection and diffusion
520        (turn on with SEAICEuseFluxForm)
521      - replace 1 in 3d global fields by kSurface in growth.F
522      
523    checkpoint58a_post
524    o seaice:
525      - bug fix in advect.F
526    o shelfice:
527      - separate shelfice load anomaly from pload (breaks with time
528        dependent forcing), => introduce constant field shelficeLoadAnomaly.
529        Its default is 0., but it may be computed more cleverly from (unknown)
530        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
531        done offline. A good approximation of the pressure load anomaly is
532        necessary to avoid large initial adjustment processes underneath
533        deep-reaching shelfice.
534      - small fix in ISOMIP shelfice_thermodynamics
535      - add more sophisticated thermodynamics of Hellmer (1989), this is
536        now the default
537      - give a few constants more intuitive names
538    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
539      if bulk formulae are used in long integration (especially EmPmR). Turn
540      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
541      if balancePrintMean, the imbalance that is substracted is printed to
542      STDOUT.
543    o fix bug (typo) in obcs_apply_eta.F
544    o add a new package shelfice which enables us to model the circulation
545      underneath shelf-ice with draughts of hundreds of meters.
546     - works
547     - to do: + include improved thermodynamics
548              + check whether kSurfC (from model/inc/SURFACE.h) can be used
549                instead of new field kTopC
550              + can we use topoFile, Ro_surf and existing code in ini_depth.F
551                instead of new field R_shelfIce and new code in ini_depth.F
552                and ini_mask_etc.F?
553              + adjust vertical mixing schemes?
554    o seaice pkg:
555     - add a cpp-flag to include a simple formula for a salinity dependent
556       freezing point of sea water at the surface
557     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
558       meridional stresses are now different (and hopefully correct)
559    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
560       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
561       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
562    o pkg/diagnostics: add options and parameters for regional-statistics
563       diagnostics ; define regions by reading a region-mask from a file
564       (might add other options later)
565    o pkg/bulk_force:
566     - add option and parameters to use AIM surface-flux formulae.
567     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
568       others forcing fields (defined in PARM05, parameter file "data") are loaded
569       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
570     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
571     - use the right EXCH call for uwind,vwind (to work on CS-grid).
572     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
573       and parameters (note: calcWindStress replaces .NOT.readwindstress).
574     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
575    
576    checkpoint58
577    o add "--embed-source" option to genmake2 which, when the supporting
578      tools can be compiled (as determined by genmake2) will turn on the
579      embed_files package which then embeds the entire MITgcm source code
580      (*.[fFhc] + Makefile) used for the build within the executable
581      - requested by CNH but off by default
582      - adds a paltry <9MB to the mitgcmuv executable in most cases
583      - only writes the output when useEMBEDSRC in eedata is true
584    o clean up 3-dim. relaxation codes:
585      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
586      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
587      * Thanks to Tom Haine for testing!
588    
589    checkpoint57z_post
590    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
591      affects output (@ truncation level) of exp. plume_on_slope ; updated.
592    o fix the pickup behavior for obcs in combination with ptracers
593    o fix a bug in ptracers_external_fields_load
594    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
595      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
596    o transfered surface NH pressure to eta field (if exactConserv).
597    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
598         and update lab_sea output.txt file.
599    o completing 3-dim. relaxation code: additional term
600         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
601      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
602      * At compile time, in "EXF_OPTIONS.h" set
603          #define  ALLOW_CLIMTEMP_RELAXATION
604          #define  ALLOW_CLIMSALT_RELAXATION
605      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
606          tauThetaClimRelax3Dim = 15552000.0,
607          tauSaltClimRelax3Dim  = 15552000.0,
608      * 3 cases:
609          1) Use a constant-in-time 3-dim. field
610          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
611          3) Real-time relax. to time-evolving prescribed field
612    o Adding Laplacian-type smoothness constraint on
613      initial and boundary (forcing) controls (ic, bc)
614      * enable at compile-time via
615        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
616      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
617      * Absolute scale somewhat unclear so far
618      * no area weighting was included since no other cost term does so far
619    
620    checkpoint57y_post
621    First step for a NLFS adjoint
622    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
623    o new init. routines for calc_r_star, calc_surf_dr
624    o still need to deal with ini_masks_etc
625    o testreport seemed happy
626    checkpoint57y_pre
627    
628    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
629    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
630    o add new offset feature to offline pkg (plus minor cleanup)
631    o cfc fixes for final year of integration
632    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
633      be in GCHEM_OPTIONS).
634    
635    checkpoint57x_post
636    o fix testreport Pb in multiple test experiment.
637    o cleanup our namelist syntax in verification:
638      - make it more F95 standards compliant (some work still needed)
639      - allows the vast majority of our tests to work with gfortran
640    o Non-Hydrostatic:
641     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
642     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
643    o Allow to apply AB on T,S rather than on AB(gT,gS):
644     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
645     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
646       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
647     - need a "clever" read_pickup to restart from the other AB formulation
648    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
649    o remove some unused variables (reduces number of compiler warnings)
650    o adjoint
651      * Disable useVariableViscosity for adjoint for time being
652        (there are a number of extensive recomputations)
653      * Initialize certain variables needed for adjoint
654    
655    checkpoint57w_post
656    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
657                 fix the singleCpuIO RS version of MDSWRITEFIELD
658       and add a WARNING if using globalFiles=T with multi-processors.
659    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
660      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
661    o tracer advection scheme:
662      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
663       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
664       was not very convenient).
665      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
666       (further tests needed for the implicit DST & Flux-Limiter schemes).
667    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
668      and sRef for convenience, handy, when you want to initialize
669      ptracers in a large domain with a constant non-zero value. Also,
670      untangle ptracers_init.F a little.
671    
672    checkpoint57v_post
673    o change dome exp. to use variable viscosity in side-drag terms.
674    o remove all the files from the cfc_offline test since they are now
675      incorporated into tutorial_cfc_offline which has been producing
676      identical results for a few days of testing
677    o add new parameter: sideDragFactor to enable half-slip-side BC
678      and change side-drag S/R to use viscosity from mom_calc_visc
679      (can switch back by setting sideDragFactor=0.); affects results at
680      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
681       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
682    o vorticity & strain are now computed without masking, to account for
683      no-slip-side BC in variable viscosity calculation ; mask is applied
684      anyway later on, before computing advection/coriolis terms.
685    o modify exp4 to test new obcs support for reading from external files
686      and for passive tracers
687    o fix behavior of ptracers_monitor when monitor output is written to a
688      netcdf-file; still not independent of monitor.F (writes in the same
689      file).
690    o change default value of tRef (put a uniform, meaningful value for ocean
691      & atmos) and initialize sRef (was missing, as Martin mentioned).
692    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
693      to be proportional to enstrophy dissipation length.  Thus,
694       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
695      This is now consistent with Smagorinsky and with the manual.
696    
697    checkpoint57u_post
698    o OBCS and PTRACERS: add open boundary support for passive tracers
699      - either use homogenous (pseudo) v.Neumann conditions or prescribe
700        OB-values from file; this is not different from the way theta and salinity
701        are treated
702      - however, Orlanski-radiation conditions are not supported, and the model
703        will stop if you use pTracers and Orlanski at the same time.
704      - beefed up the rountine obcs_external_fields_load: now only those open
705        boundary values are overwritten with values from files for which there
706        are really files, otherwise the OB-fields remain untouched. This makes
707        it possible to use different OBs at different ends of the domain (as
708        with EXF)
709    o reduce number of exch calls in shap_filt (s2).
710    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
711      truncation level) 4/5 MLAdjust test results (11&12 digits match).
712    
713    checkpoint57t_post
714    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
715    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
716      same truncation, independent of the face number: affects affects several
717      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
718    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
719      note that biharmonic viscosity + no-slip was not tested in any experiment.
720    o fix bug in non-linear free-surf side-drag ; generate new output for
721      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
722    o make mnc honor the writeBinaryPrec flag for most kinds of output
723    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
724    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
725      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
726    o add brackets in multi-terms sum to get same truncation, independent of
727      the face number (manage to get exactly same value of gU,gV at the cs-edge)
728      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
729    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
730      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
731      a maximum grid-scale Reynolds number.  Also, changes all length calculations
732      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
733      Suggested values of viscosity parameters found in mom_calc_visc.
734      Many new viscosity diagnostics available.
735    
736    checkpoint57s_post
737    o Add clearing-house for viscosity calculations, mom_calc_visc and
738      correct numerous bugs in LeithD and Smagorinsky discretizations.  
739      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
740      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
741      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
742      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
743      The Strain-Tension form is now called with useStrainTensonVisc=.true.
744      ViscAhStrain and viscAhTension are now retired.
745    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
746    o In response to JMC's bug report, genmake2 now ignores any soft-links
747      that it finds in the *current* directory when searching for files.
748      Soft-links found in any other source directories will still work as
749      they did before.
750    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
751      a C routine to unlimit the stack size
752    o mnc-ify pkg/aim snapshot vars
753    o mnc-ify pkg/land as requested by Daniel
754    o various changes to mnc including:
755      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
756      - output can now be grouped so that all files within a group
757          change the ITER portion of their names in lock-step together
758      - can now read ("global") PER-FACE (in addition to PER-TILE) files
759          and works with both EXCH1 and EXCH2 (but needs more testing)
760      - writing works for all verification test cases w/ g77 on Linux
761    
762    checkpoint57r_post
763    o make MNC variable initialization happen earlier
764    o add diagnostics for (almost) each term of the momentum Eq.
765    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
766    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
767    o remove MINIMAL_TAVE_OUTPUT option ;
768      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
769    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
770      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
771    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
772    o add time-dependent SST, SSS control
773    o cost terms in ecco/ modularized (new cost_generic.F)
774    o cost_averages routines are modularized (new cost_averagesgeneric.F)
775    o new infrastructure for seaice model vs. obs misfits in seaice/
776      * driver from the_main_loop.F is seaice_cost_driver.F
777      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
778      * gradient check in Exp. 6a of natl_box_adjoint/
779    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
780      (see README file)
781    
782    checkpoint57q_post
783    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
784    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
785      - bug was reported by Jean-Michel and Ian Fenty
786    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
787      update exp. cpl_aim+ocn output.
788    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
789      Needed for high-res. runs with large global files
790      to be able to limit tapelev size
791    o Changed some tests for adjoint:
792      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
793      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
794      * global_ocean.90x40x15/ back to default 3-level checkpointing
795    o Modifications to enable scripted COMMON to MODULE conversion
796      * verification/OpenAD/code/ has necessary scripts and description;
797      * converts, compiles and runs successfully;
798    
799    checkpoint57p_post
800    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
801    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
802      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
803    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
804    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
805      (was already the case for dissipation with mom_vecinv,
806       and also the case for grad.PhiHyd when staggered-timeStep)
807      This will allow to put dissipation out-off the AB time-stepping.
808     Unfortunately, affects truncation error. Update output of exp. that "fails"
809      (cg2d matching number) and leave the others for later: front_relax(10),
810      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
811      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
812    
813    checkpoint57o_post
814    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
815      (2) its ready to be documented during the 20050801 DocFest
816    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
817      for ideal_2D_oce and lab_sea on linux_ia32_g77
818    o set to #undef CTRL_SET_OLD_MAXCVARS_30
819      in global1x1_tot/code_seaice_adj to access indices 32, 33
820      (worth another tag)
821    
822    checkpoint57n_post
823    o adding precip control xx_precip 32
824    o adding swflux control xx_swflux 33
825    o Replacing 10 forcing penalty cost routines by 1 generic.
826    o Implementing partitioning in time-mean and variable adjustment
827      for atmos. state.
828    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
829    o in natl_box_adjoint:
830      * updated exp 1 to 10
831        (but does not have time-mean vs. variable split results yet)
832    o updated global1x1/*_seaice_adj/
833      to incorporate latest changes
834    o enable useSingleCpuIO for mdsio vector routines
835      (applies in particular to tapelev I/O)
836    o removed inefficient K-loop in all active_file*control*.F
837    
838    checkpoint57m_post
839    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
840      and advect_cs (use EXCH-2 and standard cs-32 grid files).
841    o pkg/exch2: filling of face-corner halo regions is optional
842      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
843    
844    checkpoint57l_post
845     tag before updating tutorials (pre-release-2)
846    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
847       for output and interpolation of input fields onto model grid)
848    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
849       Affects results of exp. rotating_tank ; update output.txt.
850    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
851          and taking the square quantity and/or using a fraction-weight field.
852    o fix aim_diagnostics_init.F mate numbers.
853    o add mnc output capability to diagnostics/diagstat and update
854      our cvsignore files for the ACSII output generated
855    
856    checkpoint57k_post
857    o lab_sea now uses diagnostics package and provides a suite of
858      new EXF diagnostics output.
859    
860    checkpoint57j_post
861    o exf
862      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
863        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
864        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
865      * extended diagnostics output
866        - now includes all EXF variables
867        - hs, hl moved to common block
868        - separate S/R for diagnostics, called after ctrl vector is added
869        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
870        - EXFqnet contains true Qnet (i.e. includes qsw)
871      * updated verif. lab_sea, global_with_exf
872      * Rearranging hflux (exf_mapfields -> exf_getforcing)
873        to ensure that diagnostics sees a true EXFqnet
874    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
875    o diagnostics pkg: change pointers so that 1 diagnostic can be used
876      several times with different frequencies.
877    o mnc-ify the thsice package as requested by Daniel Enderton
878      - the monitor--MNC output needs work
879      - many attributes need to be added (most are currently blank)
880    o mnc-ify theaim_v23 package as requested by Daniel Enderton
881      - many attributes need to be added (most are currently blank)
882    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
883    o add Sadourny like discretization to the 4th.O vorticity advection scheme
884    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
885      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
886         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
887    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
888     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
889    
890    checkpoint57i_post
891    o Diagnostics package was changed: diagnostic allocation is now deactivated
892      by setting an empty file name in the namelist (used to be by setting 0 frequency)
893    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
894      add 1rst Order upwind vertical Shear.
895    o add a quick fix for A/B checkpointing in OFFLINE mode
896    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
897      end-run around the C/Fortran linking horror in eesup/src/timers.F
898    o added pkg/runclock: allows user to terminate run based on wall clock
899    o added non-hydrostatic scaling parameter: nh_am2
900    o pkg/my82: futile attempt to make results compiler-independent by adding
901      some "_d 0", etc. no effect.
902    o for mnc output, fill the 'T' coordinate var with myTime and create a
903      separate 'iter' variable for iteration count
904    o pkg/diagnostics:
905      add new capability: output of Global/Regional & per-level statistics ;
906      tested against monitor output (including land & thSIce) on various exp.
907    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
908    
909    checkpoint57h_done
910      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
911      data.diagnostics, data.gchem, data.ptracers) is done.
912    
913    o pkg/diagnostics: prepare for Global/Regional statistics.
914      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
915    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
916      and rename it: DIFFERENT_MULTIPLE
917    
918    checkpoint57h_post
919    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
920    o pkg/diagnostics: change output frequency, now in seconds (instead
921      of Nb of iterations). This requires to change data.diagnostics.
922    checkpoint57h_pre
923    
924    o in mnc, let the user create the output dir if both mnc_outdir_date
925      and mnc_outdir_num are false
926    o add fflags() to pkg/diagnostics which allows one to specify, on a
927      per-file basis, the file precision [default behavior is unchanged]
928    o added diagnostics to pkg/kpp, including computation of mixed layer
929      depth based on a temperature/density criterion
930    o updated verification/natl_box to test the new pkg/kpp diagnostics
931    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
932    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
933    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
934      not mnc -- this mistake was found by JMC and is now corrected
935    
936    checkpoint57g_post
937    o add Adams-Bashforth 3rd Order time stepping:
938      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
939      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
940    checkpoint57g_pre
941    
942    o make lambda[Theta,Salt]ClimRelax spatially varying
943      (default remains spatially uniform constant based on tau)
944    o added new control variables
945      * init. uVel, vVel, etanN
946      * lambda[Theta,Salt]ClimRelax
947    o separate masks used for ctrl_pack/unpack 'from write_grid' output
948      (suggested by G. Forget)
949    
950    checkpoint57f_post
951    o add parameter "baseTime" = model base time = time at iteration zero
952      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
953      account for baseTime shift
954    o move Coriolis arrays from PARAMS.h to GRID.h
955    checkpoint57f_pre
956    
957    o mnc-ifying the seaice package
958    o introduced an alternative length scale calculation for use in the limiting
959      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
960    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
961    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
962      as well as grad(vort3).  Made it compatible with both approximate form
963      for the cubed sphere and full form of these gradients.  Added flag
964      useFullLeith to select between approximate and full form.  
965    o add "d0" in getcon.F to reduce differences between compilers/platforms
966      update output.txt of exp. fizhi-gridalt-hs
967    o change port_rand funtion to allow to set the seed.
968    o fix obscure MNC bug involving conversion between reals and integers
969      - it caused no problems with certain (eg. gcc, ifc) compilers but the
970        new version is now more standards-compliant
971    o adjoint-related modifications
972      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
973      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
974      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
975    
976    checkpoint57e_post
977    o Adding eddy stress controls a la Ferreira et al.
978    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
979    
980    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
981      update output.txt of exp. fizhi-gridalt-hs
982    o add more "Z" dimensions and associated coordinate vars to MNC
983    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
984    o parameter calendarDumps: when set, approximate months (30-31 days) and years
985      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
986      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
987      months and years.  Requires pkg/cal.
988    o diagnostics: add pickup functionality
989      - off by default for backwards compatibility
990      - current version only uses MDSIO -- MNC will be added
991    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
992    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
993    
994    checkpoint57d_post
995    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
996    o modify verification/ideal_2D_oce so that it tests the creation of mnc
997      output from the diagnostics package
998    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
999    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1000      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1001    o add coordinate variables to the MNC output from the diagnostics package
1002    o change MNC-flags default value: true when useMNC=TRUE
1003    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1004      the ability (off by default) to read the grid information using MNC
1005    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1006    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1007    o do snap-shot diagnostics at the middle of the time-interval (instead of
1008      at the end).
1009    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1010      new test for AIM with thSIce + slab-ocean
1011    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1012    o move state variable diagnostics to the beginning of the time step ;
1013      (note: still needs some work specially for snap-shot diagnostics)
1014      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1015    
1016    checkpoint57c_post
1017    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1018    o generate new output.txt files on faulks with g77 & the new -ieee option
1019    checkpoint57c_pre
1020    
1021    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1022      update output.txt of exp. global_ocean.90x40x15
1023    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1024      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1025    o add saltFlux(+File) forcing capability with periodicExternalForcing
1026    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1027    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1028    o improvements for the MNC output from DIAGNOSTICS:
1029      - correct handling of the unlimitied dimension
1030      - all dims now have associated coordinate variables
1031      - variables located at U, V, and Corner ("Z") points are now written
1032        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1033        *all* data points are output
1034    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1035    o added pkg/seaice/seaice_monitor.F
1036    o mdsio_readfield.F can now read files visible only to master MPI process.
1037    o pkg/seaice: some test code for ice-modified ocean stress
1038    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1039      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1040      spurious negative numbers for precipitation and humidity.  Will cause
1041      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1042    o pkg/ctrl/
1043      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1044        May be enabled via doPackDiag
1045      *  introduce z-scaling of
1046         + gradient (doZscalePack) and
1047         + control (doZscaleUnpack)
1048    o pkg/mdsio/
1049      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1050      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1051    
1052    checkpoint57b_post
1053    o simplify options in diagnostics_fill arguments (remove weird combinations)
1054    o fix MNC coordinate variables so that they now contain per-face index
1055      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1056      general, EXCH2 grids are only aligned to a "local" coordinate system
1057    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1058    o Implement instantaneous output within pkg diagnostics:
1059      setting a negative frequency in data.diagnostics produces
1060     "snap-shot" output (as opposed to time-average if freq > 0)
1061    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1062      NOTE: change ptracer diagnostics name: use 2 characters to work with
1063            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1064    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1065      becomes the coordinate variable for the 'T' dimension
1066    o add CF-style coordinate variables to MNC
1067      - just a first cut:  numbers are meaningless on the cubesphere and
1068        missing along the T axis but otherwise it works!
1069    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1070    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1071    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1072      this is based directly on what the model compute, so that the content of
1073      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1074    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1075    o clean up build options files for SunOS, in particular
1076      - remove -traditional from xmakedepend
1077      - change -xarch=v9 to -xarch=native for f77
1078      - restore use of make (not gmake)
1079      - add CC=gcc if using g77
1080    o changes per discussion of AM, JMC, & EH3 today:
1081      - move redundant "grid" variables out of "state" -- in preparation of
1082        creating proper CF-style coordinate variables and in recognition
1083        that any/all grid variables can be easily copied (eg. w/NCO) from
1084        the grid files into any of the other NetCDF files
1085      - *always* output grid variables with MDSIO (this will eventually be
1086        changed)
1087      - output MNC grid file if useMNC is true
1088    o every instance of _END_MASTER() has been found and replaced with
1089      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1090      preprocessors
1091    o re-arrange diagnostics pkg initialisation:
1092     - allow each package to extend the available diagnostics list
1093     - add some checking and fix small problems (multi-threaded, ...)
1094     - new S/R diagnostics_fill (replace fill_diagnostics):
1095       look through the short list of active diag. (instead of the long list)
1096       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1097    
1098    checkpoint57a_post
1099    o this set of changes restores TAMC compatibility
1100      tested for global_ocean.90x40x15 adjoint on trough
1101      (what a pain)
1102    
1103    checkpoint57a_pre
1104    o some modifs in tools/build_options for sunos
1105    o call ctrl_pack for ctrl at end for optimcycle=0
1106    
1107    checkpoint57
1108    o add horizontal bi-harmonic viscosity for vertical velocity
1109      - new parameter viscA4W (defaults to viscA4)
1110      - affects only non-hydrostatic code
1111      - to be done: no-slip lateral boundary conditions
1112    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1113    o implement Implicit Vertical advection for pTracers
1114    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1115      (implemented also for implicit vertical diffusion & advection)
1116    o OBCS: extend application of tracer open boundary conditions
1117      to a strip beyond the boundary of width Olx/Oly
1118    o add call monitor to TAF set of required calls (flow directives)
1119      and include in natl_box_adjoint
1120    o untangle a few ifdefs related to cost, ctrl, autodiff
1121      untangel a few ALLOW_ECCO_OPTIMIZATION
1122    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1123      (theta2, salt2 in ecco_cost_weights)
1124    
1125    checkpoint56c_post
1126    o OBCS as control variables
1127      - update ctrl_ad_diff.list, obcs_ad_diff.list
1128      - remove balance of obcs controls from default
1129      - fix index bug nobcs in ctrl_init
1130      - fix dummy fields filen in ctrl_pack
1131      - add dummy weights for obcs
1132    o lsopt: comment out fort.94 output
1133    o optim:
1134      - remove unnecessary header files
1135      - adjusted namelists
1136      - add xerbla.F to Makefile
1137    o exf:
1138      - multiple modifications of exf_check_range
1139      - unit change in exf_init_runoff from [m/year] to [m/s]
1140    o mdsio:
1141      - i/o-vector change debugLevel from debLevA to debLevB
1142    
1143    checkpoint56b_post
1144    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1145      is called from DO_THE_MODEL_IO
1146      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1147      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1148      - clean up PTRACERS_WRITE_TIMEAVE a little
1149    o add another verification experiment that tests both the cfc-pkg and
1150      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1151      reactive tendencies treated inline with regular timestepping
1152    o testreport previously did a lousy job of comparing small numbers, so
1153      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1154      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1155      testreport.
1156    o ptracers_monitor: bug fix for MPI
1157    
1158    checkpoint56a_post
1159    o GCHEM: finish reorganizating the package
1160      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1161        (introduces another 3D-array for each passive tracer, but only if
1162        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1163        gchemTendency is not needed because the timestep is done separately)
1164      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1165      - GCHEM is now---more or less cleanly---separate from PTRACERS
1166      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1167        so clear to me how that should be done in a general way.
1168    o CFC: improve formatting of output in CFC_ATMOS
1169    o PTRACERS:
1170      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1171        that ALL experiments with ptracers enable can be checked. This makes
1172        GCHEM_MONITOR obsolete.
1173      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1174        monitorFreq
1175      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1176    o add PTRACERS (PTR0[1-5]) to testreport output
1177    o exf_check_range:
1178      * default changed to .TRUE.
1179      * will check values for niter0 if debLevA, every timestep if debLevB
1180      * STOP in exf_check_range if 'out of range'
1181      * range chosen generous to allow for potential extema
1182      TBD: a version with stricter range
1183           permitted range would be runtime parameters
1184  o GMredi:  o GMredi:
1185    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1186    - 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 1189  o GCHEM:
1189    - 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
1190      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1191    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1192      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1193        this flag is now only visible within GCHEM-pkg routines.
1194      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1195        be replaced by a 3D array that is computed before thermodynamics; for
1196        this, the tracer ID iTracer had to be included into the parameter list
1197        of ptracers_forcing
1198      - set up forward_step to call gchem_forcing, that will replace
1199        gchem_forcing_int in ptracers_forcing
1200      - cleaning up
1201  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
1202    
1203  checkpoint56  checkpoint56

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