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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.759 by mlosch, Thu Dec 21 10:50:56 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: more cleaning up of seaice_growth, added many comments
8    o pkg/exf: put runoff0 and runoff into the appropriate common block
9    o fix multi-category seaice:
10     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
11       SEAICE_MULTICATEGORY
12     - fix short wave heat flux
13    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
14       and allow to use EVP solver. Change forward lab_sea: test both EVP
15       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
16    o Initial check-in of lab_sea adjoint
17      (very similar to natl_box_adjoint/code_seaice)
18      * used C-grid and EVP solver
19      * used KPP, GM/Redi
20      * uses inAdExact=.TRUE.
21      * gradient checks fail for both ADM and TLM
22        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
23        f.d. gradients actually seem more problematic than ADM, TLM gradients;
24        issue is related to forward mismatch between g77 an ifort
25    o pkg/seaice: overhaul of thermodynamics
26     - growth.F and groatb.F are replaced by new routine seaice_growth.F
27     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
28     - move a few global fields out of SEAICE.h into seaice_growth.F and
29       make them 2D (FICE/QNETO/ ...)
30     - remove FO (it is the same as QNETO)
31     - introduce a few local fields to avoid modifying external fields such
32       as atemp, etc.
33    
34    checkpoint58s_post
35    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
36      changed exf_set_gen.F so that
37        genperiod=0 means input file is one time-constant field and
38        genperiod=-12 means input file contains 12 monthly means
39    o CG2D: use pre-computed solver main-diagonal (stored in common block);
40      this affects truncation error ; generate new output file for exp. which
41      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
42        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
43        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
44        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
45        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
46        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
47    o start implementation of deep-atmosphere and anelastic formulation
48    o verification: remove 2nd copy of input files and use script "prepare_run"
49      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
50    o mom_common/vecinv/fluxform: fix a few initialisation isssues
51    o profiles: fix for multithreaded case
52    
53    o diagnostics: rename few diags:
54      s/'PRESSURE'/'RCENTER '/g
55      s/'TICE    '/'oceFreez'/g
56      s/'TAUX    '/'oceTAUX '/g
57      s/'TAUY    '/'oceTAUY '/g
58      s/'SWFLUX  '/'oceQsw  '/g
59      s/DIFx/DFxE/g
60      s/DIFy/DFyE/g
61      and add few ocean-forcing diagnostics:
62      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
63    o modifications to pkg/seaice/growth.F and budget.F, which change results of
64      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
65      as actual snow thickness.  It now refers everywhere to effective snow
66      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
67    
68    checkpoint58r_post
69    o modifications to pkg/seaice/growth.F, which change results of
70      lab_sea experiment: fixes pertain to melting snow over open water, to
71      masking EVAP under sea ice, and to using the correct AREA variable for
72      computations of EVAP, PRECIP, HSNOW, and GHEFF
73    o add ability to read bathy, salt, and theta using MNC (off by def)
74    o add flooding algorithm and advection of HSNOW for pkg/seaice;
75      both are turned off by default and do no change any results
76    o seaice advection with pkg/thsice: a step toward the use of non-linear
77      advection scheme, but #ifdef or commented out for now (requires more EXCH).
78    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
79      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
80      in natl_box (affects results @ truncation level: update output.txt)
81    o multi-threading and IO:
82      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
83      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
84        (needed to work with SingleCpuIO): tested in all verif. exp.
85    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
86      affects the results (but none of the verification test uses this scheme).
87    o Adding some pkg/diagnostics capability to pkg/seaice
88      (will certainly be subject to changes)
89    o ctrl: adding new control variables:
90      lwflux, lwdown, evap, snowprecip, apressure, runoff
91    
92    checkpoint58q_post
93    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
94      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
95      high_res_cube configuration by 4% on Columbia.
96    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
97      add (in global_with_exf/code) a version of EXF_INTERP_READ without
98      dynamical allocation (seems to work in multi-threaded).
99    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
100      single CPU io) so that TAF does not have to see EESUPPORT.h
101    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
102    
103    checkpoint58p_post
104    o obcs: stop if obcs is used with useCDscheme = .true.
105    o shelfice:
106     - fix a sign error so that no slip at shelfice interface works
107     - remove stop for combination non-hydrostatic code and shelfice. That does
108       not mean, that the results are correct, but at least they are numerically
109       stable
110    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
111    o added adjoint exch routined for all exch*3d* routines
112      and updated flow directives
113    
114    checkpoint58o_post
115    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
116      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
117    o change controling S/R for writing pickup file (new S/R do_write_pickup)
118      and clean-up reading/writing of pickup files.
119    o fix local version of read/write pickup (NH part) in rotating_tank/code
120    o simplify EXCH interface:
121     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
122     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
123    o added the regrid package
124    o shelfice:
125     - add a simple boundary layer scheme to reduce noise
126     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
127    
128    checkpoint58n_post
129    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
130       local variable (not in common block).
131    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
132      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
133      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
134        to work with SingleCpuIO.
135    o add "_d 0" to real constant of pkg/cfc subroutines ;
136       update exp. cfc_exemple & tutorial_cfc_offline output files.
137    o multi-threading and IO:
138      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
139        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
140      - barrier before and after reading.
141      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
142      - avoid using MDS_WRITELOCAL for LAND pkg output.
143      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
144        common-block variables ; Allows multi-threading with master-thread IO.
145    o change default MAX_NO_THREADS from 32 to 4 ;
146      and stop cleanly when MAX_NO_THREADS is too small.
147    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
148    
149    checkpoint58m_post
150    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
151       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
152    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
153       keep global_ocean.90x40x15 (for AD testing) with former secondary test
154       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
155    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
156        add MITgcm_tutorials (= code + all the tutorials)
157    o ecco, option to compute cost for total ssh (mean+anom)
158    o consistent with addition of ptracer and ssh in pkg/profiles
159    o profiles: adding ptracer and ssh
160    o testreport: change multi-test output-file name
161      (from output.txt.{name} to output.{name}.txt)
162    o profiles: now ok for mutli-tiles case
163    o seaice: add 4 parameters for different advection schemes for area,
164      (effective) seaice thickness, enthalphy, and snow height. Their default
165      is the standard parameter SEAICEadvScheme
166    o calc_gw:
167     - add cosFacU in zonal viscous flux (harmonic.visc.).
168     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
169       of tutorial_plume_on_slope.
170    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
171    o calc_gw: true flux-form, account for horizontal grid spacing.
172      update rotating_tank results, but not plume_on_slope (affected at
173      truncation level, 11 digits).
174    
175    checkpoint58l_post
176    o calc_gw:
177     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
178     - remove side-drag for now (need to fix it); update plume_on_slope results.
179     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
180    o commit code to make SST/SSS weights spatially variable
181      (based on either variable in-situ or variable initial T/S weights)
182    o pkg/ecco:
183      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
184        now based on horizontally varying weights wthetaLev, wsaltLev
185      * cost_averagesflags now returns year indices in addition to day, month
186      * sflux balance is performed on annual basis
187        (sflxumm, sfluxmm2, bal_sfluxmm)
188      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
189        including separate counting and multipliers
190    o pkg/rbcs
191      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
192    
193    checkpoint58k_post
194    o testreport:
195     - always build in dir. "build" (if not there, mkdir build instead of building
196       & running in input)
197     - run in dir run (if it exists), in build otherwise.
198     - call prepare_run (if input/prepare_run exists)
199     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
200    o pkg/exf modifications to interpolation and rotation routines for more
201       reasonable treatment of North Pole singularity: for tracers North Pole
202       value is set to northernmost zonal-mean value, for zonal velocity it is
203       set to zero, and for meridional velocity it is set to northernmost value.
204    o pkg/exf/exf_check_range.F
205     - add tile index to diagnostics and move stop statement to the very
206       end of the routine.
207    o pkg/diagnostics: (diagnostics_main_init.F)
208      define title of isomorphic variables according to the current config.
209    o pkg/thsice with pkg/seaice dynamics:
210    - fix domain of computation (interior only, required for exf) and do exchanges
211    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
212    o towards a standard way of dealing with multi-threading in MONITOR
213      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
214    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
215       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
216    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
217    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
218    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
219       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
220    o tracer advection:
221     - clean-up and simplify calc_common_factors.F
222     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
223       advection subroutine (but still not used within DST advection S/R)
224    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
225    
226    checkpoint58j_post
227    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
228      from file (collects calls previously in FORWARD_STEP)
229    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
230    o adjoint store dir. adjusted accordingly
231    o genmake2
232      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
233    
234    checkpoint58i_post
235    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
236      on wind stress (SEAICEstressFactor defaults to 1.)
237    o Total number of Timers is finite (<=40): comment out 2 non-essential one
238      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
239    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
240      on CS-grid: no longer loosing mass.
241    o exf & curvilinear-grid: no longer modify longitude xC & xG.
242    o pkg/ggl90: fix sloppy output and fix a bug
243    o pkg/seaice: added SEAICEuseEVPpickup parameter
244      - Set to false in order to start EVP solver with
245        non-EVP pickup files when using SEAICEuseEVP
246      - fix sign error in diffusion in seaice_calc_rhs
247    
248    checkpoint58h_post
249    * Modifications for bottom topography control
250      o replace hFacC by _hFacC at various places
251      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
252      o add non-self-adjoint cg2d_nsa
253      o update autodiff support routines
254      o re-initialise hfac after ctrl_depth_ini
255      o works for 5x5 box, doesnt work for global_ocean.90x40x15
256    * Adding verification for 5x5 box (4-layer) bottom topography control
257    
258    checkpoint58g_post
259    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
260       used for mean seasonal cycle, mean diurnal cycle); add an example
261       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
262    o pkg/ggl90:
263      - add parameter (minimum surface kinetic energy)
264      - fix bug (avoiding division by zero)
265    o couple pkg/thsice to pkg/seaice:
266      - modify advection in seaice to accomodate new scalar fields to be advected
267      - only muliDimAdection scheme work with seaice/thsice
268      - mapping of thsice-variables to seaice-variables, back and forth
269      - does not break the verification experiments, but does not give the
270        desired results either
271    o pkg/seaice
272      - make (default) second order advection a bit less confusing?
273    
274    checkpoint58f_post
275    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
276      to pkg/seaice):
277      - new routines thsice_map_exf and thsice_get_exf provide the interface
278      - add an additional formal parameter to thsice_solve4temp
279    o pkg/exf:
280      - add new fields wspeed, snowprecip (to be able to couple to thsice)
281      - correct Stefan-Boltzmann constant
282      - new parameter for longwave surface emittance
283      - separate some stuff from exf_bulkformulae into new routines  
284        exf_radiation, exf_wind
285      - add new parameters and constants: longwave emissivity for ocean, ice
286        and snow, evaporation parameters over ice
287      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
288        either wind from stress or stress from wind
289    o pkg/thSIce:
290    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
291    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
292       and THSICE_CALC_THICKN
293    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
294    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
295      to make debugging easier.
296    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
297    o pkg/bulk_force:
298      - clean-up comments and parameters ;
299      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
300    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
301      generate new output for test-experiment: aim.5l_cs.thSI
302    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
303      testreport accordingly
304    
305    checkpoint58e_post
306    o SEAICE_CGRID adjoint done
307    o R_STAR adjoint implemented.
308      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
309      * need to sort out init. of h0facc, etc.
310    o Make pkg/profile fully independent of ecco,cost, etc. stuff
311      to be able to use it in pure forward.
312    
313    checkpoint58d_post
314    o upgrade simple test-experiment to tutorial example:
315     step.1: duplicate the experiment and (step.2) will remove the old copy.
316      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
317      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
318      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
319      tutorial_global_oce_biogeo    <- copy of dic_example
320      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
321      tutorial_plume_on_slope       <- copy of plume_on_slope
322      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
323      tutorial_global_oce_optim     <- empty for now (David ?)
324      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
325     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
326    o correct a sign problem in cost_scat.F
327    o obcs and ptracers: fix boundary conditions for advections schemes
328      with larger stencil
329    o thsice adjoint: start
330    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
331      completeness
332    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
333      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
334    o ptracers adjoint:
335      * avoid extensive recomputatations
336      * fix missing re-init. of gptr (missed by TAF)
337    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
338      me to turn off the excessive output to STDOUT that this package produces
339    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
340      and add those terms in Vector-Invariant formulation.
341    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
342      if the control period (xx_hfluxperiod etc) is 0
343    o in profiles pkg, clean routines and fix details
344    o in ecco pkg, reading ssh data:
345      fix problem in case the model does not start at iter0=0
346    o fix mnc-pickup/restart for ptracers
347    o new package prifiles:
348      code to compute profile-based cost by Gael Forget
349      (modifs in ecco, ctrl, autodiff)
350    o Benign bug fix in initialization (spotted by M. Mazloff) of
351      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
352    
353    checkpoint58c_post
354    o adjoint: finish NLFS adjoint and provide reference output in
355      verification/global_ocean.90x40x15/results_ad_nlfs
356    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
357      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
358      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
359      with SEAICE_CGRID defined.
360    o move calendarDumps from "data" to "data.cal" and clean-up the code
361      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
362    o add useEXF & useCAL flags (for now, set in hard-coded way)
363    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
364      (were missing in NH mode, and wrong in quasihydrostatic mode).
365      waiting for Chris updated version of calc_gw to add those CALLs.
366    o fix bug in quasihydrostatic S/R ;
367      add a test for this option: global_ocean.90x40x15.qshyd
368    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
369      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
370    o add on/off flag useOffLine for package OFFLINE
371    o seaice:
372      - modify advection so that it works also on the C-grid
373      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
374        problem in multi-tile runs with C-grid
375      - add flags for clipping ice velocities and/or masking solver forcing
376      - fix drag (ocean on ice) formulation and a bug that caused noise in the
377        C-grid solver
378      - added a few comments to seaice_diffusion.F
379      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
380        are now exclusive)
381      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
382        required re-ordering the code a little:
383       + make DAIRN global variable (defined in SEAICE)
384       + move computation of the viscosities eta and zeta into a new separate
385         routine (because I need to recompute them in seaice_ocean_stress.F)
386    
387    checkpoint58b_post
388    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
389      update output.txt of exp. aim.5l_cs.thSI
390    o various mnc cleanups and improvements:
391      + shrink lookup tables by factor of ~4
392      + better error reporting when running out of lookup space
393      + able to handle longer path/file names (up to 500 chars)
394    o adjoint:
395      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
396      - TBD: "hidden" mom_vecinv recomp. in dynamics
397    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
398     (allow to differentiate between forcing components using new integer flags:
399      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
400     and add new flag to put Dissipation tendency out of Adams-Bashforth.
401    o ecco
402      - enable trend removal from SSH anomaly obs.
403    o adjoint
404      - a fix for PmEpR when #undef EXACT_CONSERV
405      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
406      - try to fix "hidden" recomp. in forward_step for NLFS
407        (NLFS seems broken sometimes after I checked it in)
408    o seaice:
409     - add c-grid version of the dynamic solver:
410       + three new routines that are the c-grid substitute lsr, dynsolver
411         and ostres
412       + put a few fields that were local to dynsolver into global common
413         blocks, so that I can move the computation of stresses etc into
414         seaice_lsr (saves coding but may break the adjoint).
415     - replace more hardwired parameters by runtime parameters
416     - add ice masks that mask the rhs of the implicit solvers where there
417       is no ice (commented out in seaice_dynsolver, because i am not sure
418       if this works properly), eventually this should replace the clipping
419       of ice velocities in seaice_dynsolver to +/-40cm/s.
420    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
421      include it only where its needed
422    o move balancing of fluxes before the call of external_forcing_surf
423    o seaice:
424      - correct units of turning angles (now they are really in degrees)
425      - move computation of GWATX/Y out of main routine into dynsolver
426      - initialize GWATX/Y in seaice_init
427    o Apply mask on Fresh-Water flux (needed for SSH forcing).
428      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
429    o seaice: add runtime flags for turning angles (default to zero)
430    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
431      and trend from exf forcing and ctrl control adjustments
432    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
433      (since checkpoint57x_post)
434    o change the default rotation period to 86164.s = the Earth rotation
435    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
436      and based on a reference stratification. Tested within hs94.cs-32x32x5.
437    o seaice advection: add code for choosing between the default (2nd order
438      central differences) and multiDim advection schemes provided by
439      pkg/generic_advdiff
440    o seaice:
441      - removed all references to SEAICE_GRID.h fields from
442        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
443        (cubed-sphere configuration will change a little)
444      - grid computations in seaice_init are obsolete now.
445      - cleaned up code a little so that is easier to read (hopefully).
446      - added new (better?) discretizations of default advection and diffusion
447        (turn on with SEAICEuseFluxForm)
448      - replace 1 in 3d global fields by kSurface in growth.F
449      
450    checkpoint58a_post
451    o seaice:
452      - bug fix in advect.F
453    o shelfice:
454      - separate shelfice load anomaly from pload (breaks with time
455        dependent forcing), => introduce constant field shelficeLoadAnomaly.
456        Its default is 0., but it may be computed more cleverly from (unknown)
457        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
458        done offline. A good approximation of the pressure load anomaly is
459        necessary to avoid large initial adjustment processes underneath
460        deep-reaching shelfice.
461      - small fix in ISOMIP shelfice_thermodynamics
462      - add more sophisticated thermodynamics of Hellmer (1989), this is
463        now the default
464      - give a few constants more intuitive names
465    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
466      if bulk formulae are used in long integration (especially EmPmR). Turn
467      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
468      if balancePrintMean, the imbalance that is substracted is printed to
469      STDOUT.
470    o fix bug (typo) in obcs_apply_eta.F
471    o add a new package shelfice which enables us to model the circulation
472      underneath shelf-ice with draughts of hundreds of meters.
473     - works
474     - to do: + include improved thermodynamics
475              + check whether kSurfC (from model/inc/SURFACE.h) can be used
476                instead of new field kTopC
477              + can we use topoFile, Ro_surf and existing code in ini_depth.F
478                instead of new field R_shelfIce and new code in ini_depth.F
479                and ini_mask_etc.F?
480              + adjust vertical mixing schemes?
481    o seaice pkg:
482     - add a cpp-flag to include a simple formula for a salinity dependent
483       freezing point of sea water at the surface
484     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
485       meridional stresses are now different (and hopefully correct)
486    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
487       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
488       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
489    o pkg/diagnostics: add options and parameters for regional-statistics
490       diagnostics ; define regions by reading a region-mask from a file
491       (might add other options later)
492    o pkg/bulk_force:
493     - add option and parameters to use AIM surface-flux formulae.
494     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
495       others forcing fields (defined in PARM05, parameter file "data") are loaded
496       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
497     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
498     - use the right EXCH call for uwind,vwind (to work on CS-grid).
499     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
500       and parameters (note: calcWindStress replaces .NOT.readwindstress).
501     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
502    
503    checkpoint58
504    o add "--embed-source" option to genmake2 which, when the supporting
505      tools can be compiled (as determined by genmake2) will turn on the
506      embed_files package which then embeds the entire MITgcm source code
507      (*.[fFhc] + Makefile) used for the build within the executable
508      - requested by CNH but off by default
509      - adds a paltry <9MB to the mitgcmuv executable in most cases
510      - only writes the output when useEMBEDSRC in eedata is true
511    o clean up 3-dim. relaxation codes:
512      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
513      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
514      * Thanks to Tom Haine for testing!
515    
516    checkpoint57z_post
517    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
518      affects output (@ truncation level) of exp. plume_on_slope ; updated.
519    o fix the pickup behavior for obcs in combination with ptracers
520    o fix a bug in ptracers_external_fields_load
521    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
522      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
523    o transfered surface NH pressure to eta field (if exactConserv).
524    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
525         and update lab_sea output.txt file.
526    o completing 3-dim. relaxation code: additional term
527         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
528      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
529      * At compile time, in "EXF_OPTIONS.h" set
530          #define  ALLOW_CLIMTEMP_RELAXATION
531          #define  ALLOW_CLIMSALT_RELAXATION
532      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
533          tauThetaClimRelax3Dim = 15552000.0,
534          tauSaltClimRelax3Dim  = 15552000.0,
535      * 3 cases:
536          1) Use a constant-in-time 3-dim. field
537          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
538          3) Real-time relax. to time-evolving prescribed field
539    o Adding Laplacian-type smoothness constraint on
540      initial and boundary (forcing) controls (ic, bc)
541      * enable at compile-time via
542        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
543      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
544      * Absolute scale somewhat unclear so far
545      * no area weighting was included since no other cost term does so far
546    
547    checkpoint57y_post
548    First step for a NLFS adjoint
549    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
550    o new init. routines for calc_r_star, calc_surf_dr
551    o still need to deal with ini_masks_etc
552    o testreport seemed happy
553    checkpoint57y_pre
554    
555    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
556    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
557    o add new offset feature to offline pkg (plus minor cleanup)
558    o cfc fixes for final year of integration
559    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
560      be in GCHEM_OPTIONS).
561    
562    checkpoint57x_post
563    o fix testreport Pb in multiple test experiment.
564    o cleanup our namelist syntax in verification:
565      - make it more F95 standards compliant (some work still needed)
566      - allows the vast majority of our tests to work with gfortran
567    o Non-Hydrostatic:
568     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
569     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
570    o Allow to apply AB on T,S rather than on AB(gT,gS):
571     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
572     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
573       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
574     - need a "clever" read_pickup to restart from the other AB formulation
575    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
576    o remove some unused variables (reduces number of compiler warnings)
577    o adjoint
578      * Disable useVariableViscosity for adjoint for time being
579        (there are a number of extensive recomputations)
580      * Initialize certain variables needed for adjoint
581    
582    checkpoint57w_post
583    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
584                 fix the singleCpuIO RS version of MDSWRITEFIELD
585       and add a WARNING if using globalFiles=T with multi-processors.
586    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
587      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
588    o tracer advection scheme:
589      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
590       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
591       was not very convenient).
592      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
593       (further tests needed for the implicit DST & Flux-Limiter schemes).
594    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
595      and sRef for convenience, handy, when you want to initialize
596      ptracers in a large domain with a constant non-zero value. Also,
597      untangle ptracers_init.F a little.
598    
599    checkpoint57v_post
600    o change dome exp. to use variable viscosity in side-drag terms.
601    o remove all the files from the cfc_offline test since they are now
602      incorporated into tutorial_cfc_offline which has been producing
603      identical results for a few days of testing
604    o add new parameter: sideDragFactor to enable half-slip-side BC
605      and change side-drag S/R to use viscosity from mom_calc_visc
606      (can switch back by setting sideDragFactor=0.); affects results at
607      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
608       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
609    o vorticity & strain are now computed without masking, to account for
610      no-slip-side BC in variable viscosity calculation ; mask is applied
611      anyway later on, before computing advection/coriolis terms.
612    o modify exp4 to test new obcs support for reading from external files
613      and for passive tracers
614    o fix behavior of ptracers_monitor when monitor output is written to a
615      netcdf-file; still not independent of monitor.F (writes in the same
616      file).
617    o change default value of tRef (put a uniform, meaningful value for ocean
618      & atmos) and initialize sRef (was missing, as Martin mentioned).
619    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
620      to be proportional to enstrophy dissipation length.  Thus,
621       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
622      This is now consistent with Smagorinsky and with the manual.
623    
624    checkpoint57u_post
625    o OBCS and PTRACERS: add open boundary support for passive tracers
626      - either use homogenous (pseudo) v.Neumann conditions or prescribe
627        OB-values from file; this is not different from the way theta and salinity
628        are treated
629      - however, Orlanski-radiation conditions are not supported, and the model
630        will stop if you use pTracers and Orlanski at the same time.
631      - beefed up the rountine obcs_external_fields_load: now only those open
632        boundary values are overwritten with values from files for which there
633        are really files, otherwise the OB-fields remain untouched. This makes
634        it possible to use different OBs at different ends of the domain (as
635        with EXF)
636    o reduce number of exch calls in shap_filt (s2).
637    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
638      truncation level) 4/5 MLAdjust test results (11&12 digits match).
639    
640    checkpoint57t_post
641    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
642    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
643      same truncation, independent of the face number: affects affects several
644      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
645    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
646      note that biharmonic viscosity + no-slip was not tested in any experiment.
647    o fix bug in non-linear free-surf side-drag ; generate new output for
648      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
649    o make mnc honor the writeBinaryPrec flag for most kinds of output
650    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
651    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
652      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
653    o add brackets in multi-terms sum to get same truncation, independent of
654      the face number (manage to get exactly same value of gU,gV at the cs-edge)
655      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
656    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
657      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
658      a maximum grid-scale Reynolds number.  Also, changes all length calculations
659      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
660      Suggested values of viscosity parameters found in mom_calc_visc.
661      Many new viscosity diagnostics available.
662    
663    checkpoint57s_post
664    o Add clearing-house for viscosity calculations, mom_calc_visc and
665      correct numerous bugs in LeithD and Smagorinsky discretizations.  
666      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
667      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
668      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
669      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
670      The Strain-Tension form is now called with useStrainTensonVisc=.true.
671      ViscAhStrain and viscAhTension are now retired.
672    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
673    o In response to JMC's bug report, genmake2 now ignores any soft-links
674      that it finds in the *current* directory when searching for files.
675      Soft-links found in any other source directories will still work as
676      they did before.
677    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
678      a C routine to unlimit the stack size
679    o mnc-ify pkg/aim snapshot vars
680    o mnc-ify pkg/land as requested by Daniel
681    o various changes to mnc including:
682      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
683      - output can now be grouped so that all files within a group
684          change the ITER portion of their names in lock-step together
685      - can now read ("global") PER-FACE (in addition to PER-TILE) files
686          and works with both EXCH1 and EXCH2 (but needs more testing)
687      - writing works for all verification test cases w/ g77 on Linux
688    
689    checkpoint57r_post
690    o make MNC variable initialization happen earlier
691    o add diagnostics for (almost) each term of the momentum Eq.
692    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
693    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
694    o remove MINIMAL_TAVE_OUTPUT option ;
695      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
696    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
697      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
698    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
699    o add time-dependent SST, SSS control
700    o cost terms in ecco/ modularized (new cost_generic.F)
701    o cost_averages routines are modularized (new cost_averagesgeneric.F)
702    o new infrastructure for seaice model vs. obs misfits in seaice/
703      * driver from the_main_loop.F is seaice_cost_driver.F
704      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
705      * gradient check in Exp. 6a of natl_box_adjoint/
706    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
707      (see README file)
708    
709    checkpoint57q_post
710    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
711    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
712      - bug was reported by Jean-Michel and Ian Fenty
713    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
714      update exp. cpl_aim+ocn output.
715    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
716      Needed for high-res. runs with large global files
717      to be able to limit tapelev size
718    o Changed some tests for adjoint:
719      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
720      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
721      * global_ocean.90x40x15/ back to default 3-level checkpointing
722    o Modifications to enable scripted COMMON to MODULE conversion
723      * verification/OpenAD/code/ has necessary scripts and description;
724      * converts, compiles and runs successfully;
725    
726    checkpoint57p_post
727    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
728    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
729      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
730    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
731    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
732      (was already the case for dissipation with mom_vecinv,
733       and also the case for grad.PhiHyd when staggered-timeStep)
734      This will allow to put dissipation out-off the AB time-stepping.
735     Unfortunately, affects truncation error. Update output of exp. that "fails"
736      (cg2d matching number) and leave the others for later: front_relax(10),
737      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
738      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
739    
740    checkpoint57o_post
741    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
742      (2) its ready to be documented during the 20050801 DocFest
743    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
744      for ideal_2D_oce and lab_sea on linux_ia32_g77
745    o set to #undef CTRL_SET_OLD_MAXCVARS_30
746      in global1x1_tot/code_seaice_adj to access indices 32, 33
747      (worth another tag)
748    
749    checkpoint57n_post
750    o adding precip control xx_precip 32
751    o adding swflux control xx_swflux 33
752    o Replacing 10 forcing penalty cost routines by 1 generic.
753    o Implementing partitioning in time-mean and variable adjustment
754      for atmos. state.
755    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
756    o in natl_box_adjoint:
757      * updated exp 1 to 10
758        (but does not have time-mean vs. variable split results yet)
759    o updated global1x1/*_seaice_adj/
760      to incorporate latest changes
761    o enable useSingleCpuIO for mdsio vector routines
762      (applies in particular to tapelev I/O)
763    o removed inefficient K-loop in all active_file*control*.F
764    
765    checkpoint57m_post
766    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
767      and advect_cs (use EXCH-2 and standard cs-32 grid files).
768    o pkg/exch2: filling of face-corner halo regions is optional
769      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
770    
771    checkpoint57l_post
772     tag before updating tutorials (pre-release-2)
773    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
774       for output and interpolation of input fields onto model grid)
775    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
776       Affects results of exp. rotating_tank ; update output.txt.
777    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
778          and taking the square quantity and/or using a fraction-weight field.
779    o fix aim_diagnostics_init.F mate numbers.
780    o add mnc output capability to diagnostics/diagstat and update
781      our cvsignore files for the ACSII output generated
782    
783    checkpoint57k_post
784    o lab_sea now uses diagnostics package and provides a suite of
785      new EXF diagnostics output.
786    
787    checkpoint57j_post
788    o exf
789      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
790        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
791        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
792      * extended diagnostics output
793        - now includes all EXF variables
794        - hs, hl moved to common block
795        - separate S/R for diagnostics, called after ctrl vector is added
796        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
797        - EXFqnet contains true Qnet (i.e. includes qsw)
798      * updated verif. lab_sea, global_with_exf
799      * Rearranging hflux (exf_mapfields -> exf_getforcing)
800        to ensure that diagnostics sees a true EXFqnet
801    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
802    o diagnostics pkg: change pointers so that 1 diagnostic can be used
803      several times with different frequencies.
804    o mnc-ify the thsice package as requested by Daniel Enderton
805      - the monitor--MNC output needs work
806      - many attributes need to be added (most are currently blank)
807    o mnc-ify theaim_v23 package as requested by Daniel Enderton
808      - many attributes need to be added (most are currently blank)
809    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
810    o add Sadourny like discretization to the 4th.O vorticity advection scheme
811    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
812      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
813         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
814    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
815     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
816    
817    checkpoint57i_post
818    o Diagnostics package was changed: diagnostic allocation is now deactivated
819      by setting an empty file name in the namelist (used to be by setting 0 frequency)
820    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
821      add 1rst Order upwind vertical Shear.
822    o add a quick fix for A/B checkpointing in OFFLINE mode
823    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
824      end-run around the C/Fortran linking horror in eesup/src/timers.F
825    o added pkg/runclock: allows user to terminate run based on wall clock
826    o added non-hydrostatic scaling parameter: nh_am2
827    o pkg/my82: futile attempt to make results compiler-independent by adding
828      some "_d 0", etc. no effect.
829    o for mnc output, fill the 'T' coordinate var with myTime and create a
830      separate 'iter' variable for iteration count
831    o pkg/diagnostics:
832      add new capability: output of Global/Regional & per-level statistics ;
833      tested against monitor output (including land & thSIce) on various exp.
834    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
835    
836    checkpoint57h_done
837      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
838      data.diagnostics, data.gchem, data.ptracers) is done.
839    
840    o pkg/diagnostics: prepare for Global/Regional statistics.
841      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
842    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
843      and rename it: DIFFERENT_MULTIPLE
844    
845    checkpoint57h_post
846    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
847    o pkg/diagnostics: change output frequency, now in seconds (instead
848      of Nb of iterations). This requires to change data.diagnostics.
849    checkpoint57h_pre
850    
851    o in mnc, let the user create the output dir if both mnc_outdir_date
852      and mnc_outdir_num are false
853    o add fflags() to pkg/diagnostics which allows one to specify, on a
854      per-file basis, the file precision [default behavior is unchanged]
855    o added diagnostics to pkg/kpp, including computation of mixed layer
856      depth based on a temperature/density criterion
857    o updated verification/natl_box to test the new pkg/kpp diagnostics
858    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
859    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
860    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
861      not mnc -- this mistake was found by JMC and is now corrected
862    
863    checkpoint57g_post
864    o add Adams-Bashforth 3rd Order time stepping:
865      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
866      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
867    checkpoint57g_pre
868    
869    o make lambda[Theta,Salt]ClimRelax spatially varying
870      (default remains spatially uniform constant based on tau)
871    o added new control variables
872      * init. uVel, vVel, etanN
873      * lambda[Theta,Salt]ClimRelax
874    o separate masks used for ctrl_pack/unpack 'from write_grid' output
875      (suggested by G. Forget)
876    
877    checkpoint57f_post
878    o add parameter "baseTime" = model base time = time at iteration zero
879      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
880      account for baseTime shift
881    o move Coriolis arrays from PARAMS.h to GRID.h
882    checkpoint57f_pre
883    
884    o mnc-ifying the seaice package
885    o introduced an alternative length scale calculation for use in the limiting
886      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
887    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
888    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
889      as well as grad(vort3).  Made it compatible with both approximate form
890      for the cubed sphere and full form of these gradients.  Added flag
891      useFullLeith to select between approximate and full form.  
892    o add "d0" in getcon.F to reduce differences between compilers/platforms
893      update output.txt of exp. fizhi-gridalt-hs
894    o change port_rand funtion to allow to set the seed.
895    o fix obscure MNC bug involving conversion between reals and integers
896      - it caused no problems with certain (eg. gcc, ifc) compilers but the
897        new version is now more standards-compliant
898    o adjoint-related modifications
899      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
900      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
901      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
902    
903    checkpoint57e_post
904    o Adding eddy stress controls a la Ferreira et al.
905    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
906    
907    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
908      update output.txt of exp. fizhi-gridalt-hs
909    o add more "Z" dimensions and associated coordinate vars to MNC
910    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
911    o parameter calendarDumps: when set, approximate months (30-31 days) and years
912      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
913      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
914      months and years.  Requires pkg/cal.
915    o diagnostics: add pickup functionality
916      - off by default for backwards compatibility
917      - current version only uses MDSIO -- MNC will be added
918    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
919    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
920    
921    checkpoint57d_post
922    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
923    o modify verification/ideal_2D_oce so that it tests the creation of mnc
924      output from the diagnostics package
925    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
926    o make genmake2 more portable by using ".$FS" instead of ".f" for more
927      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
928    o add coordinate variables to the MNC output from the diagnostics package
929    o change MNC-flags default value: true when useMNC=TRUE
930    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
931      the ability (off by default) to read the grid information using MNC
932    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
933    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
934    o do snap-shot diagnostics at the middle of the time-interval (instead of
935      at the end).
936    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
937      new test for AIM with thSIce + slab-ocean
938    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
939    o move state variable diagnostics to the beginning of the time step ;
940      (note: still needs some work specially for snap-shot diagnostics)
941      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
942    
943    checkpoint57c_post
944    o Change testing option (-ieee) to get closer agreement between g77 & ifort
945    o generate new output.txt files on faulks with g77 & the new -ieee option
946    checkpoint57c_pre
947    
948    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
949      update output.txt of exp. global_ocean.90x40x15
950    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
951      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
952    o add saltFlux(+File) forcing capability with periodicExternalForcing
953    o allow to use pkg diagnostics for GM-Redi & ThSIce output
954    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
955    o improvements for the MNC output from DIAGNOSTICS:
956      - correct handling of the unlimitied dimension
957      - all dims now have associated coordinate variables
958      - variables located at U, V, and Corner ("Z") points are now written
959        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
960        *all* data points are output
961    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
962    o added pkg/seaice/seaice_monitor.F
963    o mdsio_readfield.F can now read files visible only to master MPI process.
964    o pkg/seaice: some test code for ice-modified ocean stress
965    o exf_getffields interpolation defaults to bilinear for all scalar forcing
966      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
967      spurious negative numbers for precipitation and humidity.  Will cause
968      some small numerical differences for integrations using pkg/exf/exf_interp.F.
969    o pkg/ctrl/
970      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
971        May be enabled via doPackDiag
972      *  introduce z-scaling of
973         + gradient (doZscalePack) and
974         + control (doZscaleUnpack)
975    o pkg/mdsio/
976      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
977      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
978    
979    checkpoint57b_post
980    o simplify options in diagnostics_fill arguments (remove weird combinations)
981    o fix MNC coordinate variables so that they now contain per-face index
982      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
983      general, EXCH2 grids are only aligned to a "local" coordinate system
984    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
985    o Implement instantaneous output within pkg diagnostics:
986      setting a negative frequency in data.diagnostics produces
987     "snap-shot" output (as opposed to time-average if freq > 0)
988    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
989      NOTE: change ptracer diagnostics name: use 2 characters to work with
990            more than 9 tracers. Add also diagnostics of advect & diffus flux.
991    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
992      becomes the coordinate variable for the 'T' dimension
993    o add CF-style coordinate variables to MNC
994      - just a first cut:  numbers are meaningless on the cubesphere and
995        missing along the T axis but otherwise it works!
996    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
997    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
998    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
999      this is based directly on what the model compute, so that the content of
1000      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1001    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1002    o clean up build options files for SunOS, in particular
1003      - remove -traditional from xmakedepend
1004      - change -xarch=v9 to -xarch=native for f77
1005      - restore use of make (not gmake)
1006      - add CC=gcc if using g77
1007    o changes per discussion of AM, JMC, & EH3 today:
1008      - move redundant "grid" variables out of "state" -- in preparation of
1009        creating proper CF-style coordinate variables and in recognition
1010        that any/all grid variables can be easily copied (eg. w/NCO) from
1011        the grid files into any of the other NetCDF files
1012      - *always* output grid variables with MDSIO (this will eventually be
1013        changed)
1014      - output MNC grid file if useMNC is true
1015    o every instance of _END_MASTER() has been found and replaced with
1016      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1017      preprocessors
1018    o re-arrange diagnostics pkg initialisation:
1019     - allow each package to extend the available diagnostics list
1020     - add some checking and fix small problems (multi-threaded, ...)
1021     - new S/R diagnostics_fill (replace fill_diagnostics):
1022       look through the short list of active diag. (instead of the long list)
1023       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1024    
1025    checkpoint57a_post
1026    o this set of changes restores TAMC compatibility
1027      tested for global_ocean.90x40x15 adjoint on trough
1028      (what a pain)
1029    
1030    checkpoint57a_pre
1031    o some modifs in tools/build_options for sunos
1032    o call ctrl_pack for ctrl at end for optimcycle=0
1033    
1034    checkpoint57
1035    o add horizontal bi-harmonic viscosity for vertical velocity
1036      - new parameter viscA4W (defaults to viscA4)
1037      - affects only non-hydrostatic code
1038      - to be done: no-slip lateral boundary conditions
1039    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1040    o implement Implicit Vertical advection for pTracers
1041    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1042      (implemented also for implicit vertical diffusion & advection)
1043    o OBCS: extend application of tracer open boundary conditions
1044      to a strip beyond the boundary of width Olx/Oly
1045    o add call monitor to TAF set of required calls (flow directives)
1046      and include in natl_box_adjoint
1047    o untangle a few ifdefs related to cost, ctrl, autodiff
1048      untangel a few ALLOW_ECCO_OPTIMIZATION
1049    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1050      (theta2, salt2 in ecco_cost_weights)
1051    
1052    checkpoint56c_post
1053    o OBCS as control variables
1054      - update ctrl_ad_diff.list, obcs_ad_diff.list
1055      - remove balance of obcs controls from default
1056      - fix index bug nobcs in ctrl_init
1057      - fix dummy fields filen in ctrl_pack
1058      - add dummy weights for obcs
1059    o lsopt: comment out fort.94 output
1060    o optim:
1061      - remove unnecessary header files
1062      - adjusted namelists
1063      - add xerbla.F to Makefile
1064    o exf:
1065      - multiple modifications of exf_check_range
1066      - unit change in exf_init_runoff from [m/year] to [m/s]
1067    o mdsio:
1068      - i/o-vector change debugLevel from debLevA to debLevB
1069    
1070    checkpoint56b_post
1071    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1072      is called from DO_THE_MODEL_IO
1073      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1074      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1075      - clean up PTRACERS_WRITE_TIMEAVE a little
1076    o add another verification experiment that tests both the cfc-pkg and
1077      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1078      reactive tendencies treated inline with regular timestepping
1079    o testreport previously did a lousy job of comparing small numbers, so
1080      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1081      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1082      testreport.
1083    o ptracers_monitor: bug fix for MPI
1084    
1085    checkpoint56a_post
1086    o GCHEM: finish reorganizating the package
1087      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1088        (introduces another 3D-array for each passive tracer, but only if
1089        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1090        gchemTendency is not needed because the timestep is done separately)
1091      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1092      - GCHEM is now---more or less cleanly---separate from PTRACERS
1093      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1094        so clear to me how that should be done in a general way.
1095    o CFC: improve formatting of output in CFC_ATMOS
1096    o PTRACERS:
1097      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1098        that ALL experiments with ptracers enable can be checked. This makes
1099        GCHEM_MONITOR obsolete.
1100      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1101        monitorFreq
1102      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1103    o add PTRACERS (PTR0[1-5]) to testreport output
1104    o exf_check_range:
1105      * default changed to .TRUE.
1106      * will check values for niter0 if debLevA, every timestep if debLevB
1107      * STOP in exf_check_range if 'out of range'
1108      * range chosen generous to allow for potential extema
1109      TBD: a version with stricter range
1110           permitted range would be runtime parameters
1111  o GMredi:  o GMredi:
1112    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1113    - 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 1116  o GCHEM:
1116    - 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
1117      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1118    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1119      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1120        this flag is now only visible within GCHEM-pkg routines.
1121      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1122        be replaced by a 3D array that is computed before thermodynamics; for
1123        this, the tracer ID iTracer had to be included into the parameter list
1124        of ptracers_forcing
1125      - set up forward_step to call gchem_forcing, that will replace
1126        gchem_forcing_int in ptracers_forcing
1127      - cleaning up
1128  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
1129    
1130  checkpoint56  checkpoint56

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