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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.754 by mlosch, Thu Dec 14 08:23:13 2006 UTC
# Line 3  $Name$ Line 3  $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    checkpoint58s_post
7    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
8      changed exf_set_gen.F so that
9        genperiod=0 means input file is one time-constant field and
10        genperiod=-12 means input file contains 12 monthly means
11    o CG2D: use pre-computed solver main-diagonal (stored in common block);
12      this affects truncation error ; generate new output file for exp. which
13      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
14        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
15        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
16        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
17        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
18        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
19    o start implementation of deep-atmosphere and anelastic formulation
20    o verification: remove 2nd copy of input files and use script "prepare_run"
21      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
22    o mom_common/vecinv/fluxform: fix a few initialisation isssues
23    o profiles: fix for multithreaded case
24    
25  o adding precip control xx_precip  o diagnostics: rename few diags:
26  o moved ptracer ctrl index 17 -> 32    s/'PRESSURE'/'RCENTER '/g
27      s/'TICE    '/'oceFreez'/g
28      s/'TAUX    '/'oceTAUX '/g
29      s/'TAUY    '/'oceTAUY '/g
30      s/'SWFLUX  '/'oceQsw  '/g
31      s/DIFx/DFxE/g
32      s/DIFy/DFyE/g
33      and add few ocean-forcing diagnostics:
34      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
35    o modifications to pkg/seaice/growth.F and budget.F, which change results of
36      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
37      as actual snow thickness.  It now refers everywhere to effective snow
38      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
39    
40    checkpoint58r_post
41    o modifications to pkg/seaice/growth.F, which change results of
42      lab_sea experiment: fixes pertain to melting snow over open water, to
43      masking EVAP under sea ice, and to using the correct AREA variable for
44      computations of EVAP, PRECIP, HSNOW, and GHEFF
45    o add ability to read bathy, salt, and theta using MNC (off by def)
46    o add flooding algorithm and advection of HSNOW for pkg/seaice;
47      both are turned off by default and do no change any results
48    o seaice advection with pkg/thsice: a step toward the use of non-linear
49      advection scheme, but #ifdef or commented out for now (requires more EXCH).
50    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
51      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
52      in natl_box (affects results @ truncation level: update output.txt)
53    o multi-threading and IO:
54      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
55      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
56        (needed to work with SingleCpuIO): tested in all verif. exp.
57    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
58      affects the results (but none of the verification test uses this scheme).
59    o Adding some pkg/diagnostics capability to pkg/seaice
60      (will certainly be subject to changes)
61    o ctrl: adding new control variables:
62      lwflux, lwdown, evap, snowprecip, apressure, runoff
63    
64    checkpoint58q_post
65    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
66      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
67      high_res_cube configuration by 4% on Columbia.
68    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
69      add (in global_with_exf/code) a version of EXF_INTERP_READ without
70      dynamical allocation (seems to work in multi-threaded).
71    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
72      single CPU io) so that TAF does not have to see EESUPPORT.h
73    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
74    
75    checkpoint58p_post
76    o obcs: stop if obcs is used with useCDscheme = .true.
77    o shelfice:
78     - fix a sign error so that no slip at shelfice interface works
79     - remove stop for combination non-hydrostatic code and shelfice. That does
80       not mean, that the results are correct, but at least they are numerically
81       stable
82    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
83    o added adjoint exch routined for all exch*3d* routines
84      and updated flow directives
85    
86    checkpoint58o_post
87    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
88      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
89    o change controling S/R for writing pickup file (new S/R do_write_pickup)
90      and clean-up reading/writing of pickup files.
91    o fix local version of read/write pickup (NH part) in rotating_tank/code
92    o simplify EXCH interface:
93     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
94     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
95    o added the regrid package
96    o shelfice:
97     - add a simple boundary layer scheme to reduce noise
98     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
99    
100    checkpoint58n_post
101    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
102       local variable (not in common block).
103    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
104      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
105      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
106        to work with SingleCpuIO.
107    o add "_d 0" to real constant of pkg/cfc subroutines ;
108       update exp. cfc_exemple & tutorial_cfc_offline output files.
109    o multi-threading and IO:
110      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
111        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
112      - barrier before and after reading.
113      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
114      - avoid using MDS_WRITELOCAL for LAND pkg output.
115      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
116        common-block variables ; Allows multi-threading with master-thread IO.
117    o change default MAX_NO_THREADS from 32 to 4 ;
118      and stop cleanly when MAX_NO_THREADS is too small.
119    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
120    
121    checkpoint58m_post
122    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
123       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
124    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
125       keep global_ocean.90x40x15 (for AD testing) with former secondary test
126       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
127    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
128        add MITgcm_tutorials (= code + all the tutorials)
129    o ecco, option to compute cost for total ssh (mean+anom)
130    o consistent with addition of ptracer and ssh in pkg/profiles
131    o profiles: adding ptracer and ssh
132    o testreport: change multi-test output-file name
133      (from output.txt.{name} to output.{name}.txt)
134    o profiles: now ok for mutli-tiles case
135    o seaice: add 4 parameters for different advection schemes for area,
136      (effective) seaice thickness, enthalphy, and snow height. Their default
137      is the standard parameter SEAICEadvScheme
138    o calc_gw:
139     - add cosFacU in zonal viscous flux (harmonic.visc.).
140     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
141       of tutorial_plume_on_slope.
142    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
143    o calc_gw: true flux-form, account for horizontal grid spacing.
144      update rotating_tank results, but not plume_on_slope (affected at
145      truncation level, 11 digits).
146    
147    checkpoint58l_post
148    o calc_gw:
149     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
150     - remove side-drag for now (need to fix it); update plume_on_slope results.
151     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
152    o commit code to make SST/SSS weights spatially variable
153      (based on either variable in-situ or variable initial T/S weights)
154    o pkg/ecco:
155      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
156        now based on horizontally varying weights wthetaLev, wsaltLev
157      * cost_averagesflags now returns year indices in addition to day, month
158      * sflux balance is performed on annual basis
159        (sflxumm, sfluxmm2, bal_sfluxmm)
160      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
161        including separate counting and multipliers
162    o pkg/rbcs
163      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
164    
165    checkpoint58k_post
166    o testreport:
167     - always build in dir. "build" (if not there, mkdir build instead of building
168       & running in input)
169     - run in dir run (if it exists), in build otherwise.
170     - call prepare_run (if input/prepare_run exists)
171     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
172    o pkg/exf modifications to interpolation and rotation routines for more
173       reasonable treatment of North Pole singularity: for tracers North Pole
174       value is set to northernmost zonal-mean value, for zonal velocity it is
175       set to zero, and for meridional velocity it is set to northernmost value.
176    o pkg/exf/exf_check_range.F
177     - add tile index to diagnostics and move stop statement to the very
178       end of the routine.
179    o pkg/diagnostics: (diagnostics_main_init.F)
180      define title of isomorphic variables according to the current config.
181    o pkg/thsice with pkg/seaice dynamics:
182    - fix domain of computation (interior only, required for exf) and do exchanges
183    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
184    o towards a standard way of dealing with multi-threading in MONITOR
185      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
186    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
187       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
188    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
189    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
190    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
191       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
192    o tracer advection:
193     - clean-up and simplify calc_common_factors.F
194     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
195       advection subroutine (but still not used within DST advection S/R)
196    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
197    
198    checkpoint58j_post
199    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
200      from file (collects calls previously in FORWARD_STEP)
201    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
202    o adjoint store dir. adjusted accordingly
203    o genmake2
204      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
205    
206    checkpoint58i_post
207    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
208      on wind stress (SEAICEstressFactor defaults to 1.)
209    o Total number of Timers is finite (<=40): comment out 2 non-essential one
210      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
211    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
212      on CS-grid: no longer loosing mass.
213    o exf & curvilinear-grid: no longer modify longitude xC & xG.
214    o pkg/ggl90: fix sloppy output and fix a bug
215    o pkg/seaice: added SEAICEuseEVPpickup parameter
216      - Set to false in order to start EVP solver with
217        non-EVP pickup files when using SEAICEuseEVP
218      - fix sign error in diffusion in seaice_calc_rhs
219    
220    checkpoint58h_post
221    * Modifications for bottom topography control
222      o replace hFacC by _hFacC at various places
223      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
224      o add non-self-adjoint cg2d_nsa
225      o update autodiff support routines
226      o re-initialise hfac after ctrl_depth_ini
227      o works for 5x5 box, doesnt work for global_ocean.90x40x15
228    * Adding verification for 5x5 box (4-layer) bottom topography control
229    
230    checkpoint58g_post
231    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
232       used for mean seasonal cycle, mean diurnal cycle); add an example
233       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
234    o pkg/ggl90:
235      - add parameter (minimum surface kinetic energy)
236      - fix bug (avoiding division by zero)
237    o couple pkg/thsice to pkg/seaice:
238      - modify advection in seaice to accomodate new scalar fields to be advected
239      - only muliDimAdection scheme work with seaice/thsice
240      - mapping of thsice-variables to seaice-variables, back and forth
241      - does not break the verification experiments, but does not give the
242        desired results either
243    o pkg/seaice
244      - make (default) second order advection a bit less confusing?
245    
246    checkpoint58f_post
247    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
248      to pkg/seaice):
249      - new routines thsice_map_exf and thsice_get_exf provide the interface
250      - add an additional formal parameter to thsice_solve4temp
251    o pkg/exf:
252      - add new fields wspeed, snowprecip (to be able to couple to thsice)
253      - correct Stefan-Boltzmann constant
254      - new parameter for longwave surface emittance
255      - separate some stuff from exf_bulkformulae into new routines  
256        exf_radiation, exf_wind
257      - add new parameters and constants: longwave emissivity for ocean, ice
258        and snow, evaporation parameters over ice
259      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
260        either wind from stress or stress from wind
261    o pkg/thSIce:
262    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
263    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
264       and THSICE_CALC_THICKN
265    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
266    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
267      to make debugging easier.
268    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
269    o pkg/bulk_force:
270      - clean-up comments and parameters ;
271      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
272    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
273      generate new output for test-experiment: aim.5l_cs.thSI
274    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
275      testreport accordingly
276    
277    checkpoint58e_post
278    o SEAICE_CGRID adjoint done
279    o R_STAR adjoint implemented.
280      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
281      * need to sort out init. of h0facc, etc.
282    o Make pkg/profile fully independent of ecco,cost, etc. stuff
283      to be able to use it in pure forward.
284    
285    checkpoint58d_post
286    o upgrade simple test-experiment to tutorial example:
287     step.1: duplicate the experiment and (step.2) will remove the old copy.
288      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
289      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
290      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
291      tutorial_global_oce_biogeo    <- copy of dic_example
292      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
293      tutorial_plume_on_slope       <- copy of plume_on_slope
294      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
295      tutorial_global_oce_optim     <- empty for now (David ?)
296      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
297     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
298    o correct a sign problem in cost_scat.F
299    o obcs and ptracers: fix boundary conditions for advections schemes
300      with larger stencil
301    o thsice adjoint: start
302    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
303      completeness
304    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
305      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
306    o ptracers adjoint:
307      * avoid extensive recomputatations
308      * fix missing re-init. of gptr (missed by TAF)
309    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
310      me to turn off the excessive output to STDOUT that this package produces
311    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
312      and add those terms in Vector-Invariant formulation.
313    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
314      if the control period (xx_hfluxperiod etc) is 0
315    o in profiles pkg, clean routines and fix details
316    o in ecco pkg, reading ssh data:
317      fix problem in case the model does not start at iter0=0
318    o fix mnc-pickup/restart for ptracers
319    o new package prifiles:
320      code to compute profile-based cost by Gael Forget
321      (modifs in ecco, ctrl, autodiff)
322    o Benign bug fix in initialization (spotted by M. Mazloff) of
323      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
324    
325    checkpoint58c_post
326    o adjoint: finish NLFS adjoint and provide reference output in
327      verification/global_ocean.90x40x15/results_ad_nlfs
328    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
329      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
330      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
331      with SEAICE_CGRID defined.
332    o move calendarDumps from "data" to "data.cal" and clean-up the code
333      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
334    o add useEXF & useCAL flags (for now, set in hard-coded way)
335    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
336      (were missing in NH mode, and wrong in quasihydrostatic mode).
337      waiting for Chris updated version of calc_gw to add those CALLs.
338    o fix bug in quasihydrostatic S/R ;
339      add a test for this option: global_ocean.90x40x15.qshyd
340    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
341      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
342    o add on/off flag useOffLine for package OFFLINE
343    o seaice:
344      - modify advection so that it works also on the C-grid
345      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
346        problem in multi-tile runs with C-grid
347      - add flags for clipping ice velocities and/or masking solver forcing
348      - fix drag (ocean on ice) formulation and a bug that caused noise in the
349        C-grid solver
350      - added a few comments to seaice_diffusion.F
351      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
352        are now exclusive)
353      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
354        required re-ordering the code a little:
355       + make DAIRN global variable (defined in SEAICE)
356       + move computation of the viscosities eta and zeta into a new separate
357         routine (because I need to recompute them in seaice_ocean_stress.F)
358    
359    checkpoint58b_post
360    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
361      update output.txt of exp. aim.5l_cs.thSI
362    o various mnc cleanups and improvements:
363      + shrink lookup tables by factor of ~4
364      + better error reporting when running out of lookup space
365      + able to handle longer path/file names (up to 500 chars)
366    o adjoint:
367      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
368      - TBD: "hidden" mom_vecinv recomp. in dynamics
369    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
370     (allow to differentiate between forcing components using new integer flags:
371      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
372     and add new flag to put Dissipation tendency out of Adams-Bashforth.
373    o ecco
374      - enable trend removal from SSH anomaly obs.
375    o adjoint
376      - a fix for PmEpR when #undef EXACT_CONSERV
377      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
378      - try to fix "hidden" recomp. in forward_step for NLFS
379        (NLFS seems broken sometimes after I checked it in)
380    o seaice:
381     - add c-grid version of the dynamic solver:
382       + three new routines that are the c-grid substitute lsr, dynsolver
383         and ostres
384       + put a few fields that were local to dynsolver into global common
385         blocks, so that I can move the computation of stresses etc into
386         seaice_lsr (saves coding but may break the adjoint).
387     - replace more hardwired parameters by runtime parameters
388     - add ice masks that mask the rhs of the implicit solvers where there
389       is no ice (commented out in seaice_dynsolver, because i am not sure
390       if this works properly), eventually this should replace the clipping
391       of ice velocities in seaice_dynsolver to +/-40cm/s.
392    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
393      include it only where its needed
394    o move balancing of fluxes before the call of external_forcing_surf
395    o seaice:
396      - correct units of turning angles (now they are really in degrees)
397      - move computation of GWATX/Y out of main routine into dynsolver
398      - initialize GWATX/Y in seaice_init
399    o Apply mask on Fresh-Water flux (needed for SSH forcing).
400      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
401    o seaice: add runtime flags for turning angles (default to zero)
402    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
403      and trend from exf forcing and ctrl control adjustments
404    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
405      (since checkpoint57x_post)
406    o change the default rotation period to 86164.s = the Earth rotation
407    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
408      and based on a reference stratification. Tested within hs94.cs-32x32x5.
409    o seaice advection: add code for choosing between the default (2nd order
410      central differences) and multiDim advection schemes provided by
411      pkg/generic_advdiff
412    o seaice:
413      - removed all references to SEAICE_GRID.h fields from
414        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
415        (cubed-sphere configuration will change a little)
416      - grid computations in seaice_init are obsolete now.
417      - cleaned up code a little so that is easier to read (hopefully).
418      - added new (better?) discretizations of default advection and diffusion
419        (turn on with SEAICEuseFluxForm)
420      - replace 1 in 3d global fields by kSurface in growth.F
421      
422    checkpoint58a_post
423    o seaice:
424      - bug fix in advect.F
425    o shelfice:
426      - separate shelfice load anomaly from pload (breaks with time
427        dependent forcing), => introduce constant field shelficeLoadAnomaly.
428        Its default is 0., but it may be computed more cleverly from (unknown)
429        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
430        done offline. A good approximation of the pressure load anomaly is
431        necessary to avoid large initial adjustment processes underneath
432        deep-reaching shelfice.
433      - small fix in ISOMIP shelfice_thermodynamics
434      - add more sophisticated thermodynamics of Hellmer (1989), this is
435        now the default
436      - give a few constants more intuitive names
437    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
438      if bulk formulae are used in long integration (especially EmPmR). Turn
439      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
440      if balancePrintMean, the imbalance that is substracted is printed to
441      STDOUT.
442    o fix bug (typo) in obcs_apply_eta.F
443    o add a new package shelfice which enables us to model the circulation
444      underneath shelf-ice with draughts of hundreds of meters.
445     - works
446     - to do: + include improved thermodynamics
447              + check whether kSurfC (from model/inc/SURFACE.h) can be used
448                instead of new field kTopC
449              + can we use topoFile, Ro_surf and existing code in ini_depth.F
450                instead of new field R_shelfIce and new code in ini_depth.F
451                and ini_mask_etc.F?
452              + adjust vertical mixing schemes?
453    o seaice pkg:
454     - add a cpp-flag to include a simple formula for a salinity dependent
455       freezing point of sea water at the surface
456     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
457       meridional stresses are now different (and hopefully correct)
458    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
459       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
460       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
461    o pkg/diagnostics: add options and parameters for regional-statistics
462       diagnostics ; define regions by reading a region-mask from a file
463       (might add other options later)
464    o pkg/bulk_force:
465     - add option and parameters to use AIM surface-flux formulae.
466     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
467       others forcing fields (defined in PARM05, parameter file "data") are loaded
468       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
469     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
470     - use the right EXCH call for uwind,vwind (to work on CS-grid).
471     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
472       and parameters (note: calcWindStress replaces .NOT.readwindstress).
473     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
474    
475    checkpoint58
476    o add "--embed-source" option to genmake2 which, when the supporting
477      tools can be compiled (as determined by genmake2) will turn on the
478      embed_files package which then embeds the entire MITgcm source code
479      (*.[fFhc] + Makefile) used for the build within the executable
480      - requested by CNH but off by default
481      - adds a paltry <9MB to the mitgcmuv executable in most cases
482      - only writes the output when useEMBEDSRC in eedata is true
483    o clean up 3-dim. relaxation codes:
484      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
485      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
486      * Thanks to Tom Haine for testing!
487    
488    checkpoint57z_post
489    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
490      affects output (@ truncation level) of exp. plume_on_slope ; updated.
491    o fix the pickup behavior for obcs in combination with ptracers
492    o fix a bug in ptracers_external_fields_load
493    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
494      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
495    o transfered surface NH pressure to eta field (if exactConserv).
496    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
497         and update lab_sea output.txt file.
498    o completing 3-dim. relaxation code: additional term
499         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
500      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
501      * At compile time, in "EXF_OPTIONS.h" set
502          #define  ALLOW_CLIMTEMP_RELAXATION
503          #define  ALLOW_CLIMSALT_RELAXATION
504      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
505          tauThetaClimRelax3Dim = 15552000.0,
506          tauSaltClimRelax3Dim  = 15552000.0,
507      * 3 cases:
508          1) Use a constant-in-time 3-dim. field
509          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
510          3) Real-time relax. to time-evolving prescribed field
511    o Adding Laplacian-type smoothness constraint on
512      initial and boundary (forcing) controls (ic, bc)
513      * enable at compile-time via
514        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
515      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
516      * Absolute scale somewhat unclear so far
517      * no area weighting was included since no other cost term does so far
518    
519    checkpoint57y_post
520    First step for a NLFS adjoint
521    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
522    o new init. routines for calc_r_star, calc_surf_dr
523    o still need to deal with ini_masks_etc
524    o testreport seemed happy
525    checkpoint57y_pre
526    
527    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
528    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
529    o add new offset feature to offline pkg (plus minor cleanup)
530    o cfc fixes for final year of integration
531    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
532      be in GCHEM_OPTIONS).
533    
534    checkpoint57x_post
535    o fix testreport Pb in multiple test experiment.
536    o cleanup our namelist syntax in verification:
537      - make it more F95 standards compliant (some work still needed)
538      - allows the vast majority of our tests to work with gfortran
539    o Non-Hydrostatic:
540     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
541     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
542    o Allow to apply AB on T,S rather than on AB(gT,gS):
543     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
544     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
545       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
546     - need a "clever" read_pickup to restart from the other AB formulation
547    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
548    o remove some unused variables (reduces number of compiler warnings)
549    o adjoint
550      * Disable useVariableViscosity for adjoint for time being
551        (there are a number of extensive recomputations)
552      * Initialize certain variables needed for adjoint
553    
554    checkpoint57w_post
555    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
556                 fix the singleCpuIO RS version of MDSWRITEFIELD
557       and add a WARNING if using globalFiles=T with multi-processors.
558    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
559      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
560    o tracer advection scheme:
561      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
562       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
563       was not very convenient).
564      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
565       (further tests needed for the implicit DST & Flux-Limiter schemes).
566    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
567      and sRef for convenience, handy, when you want to initialize
568      ptracers in a large domain with a constant non-zero value. Also,
569      untangle ptracers_init.F a little.
570    
571    checkpoint57v_post
572    o change dome exp. to use variable viscosity in side-drag terms.
573    o remove all the files from the cfc_offline test since they are now
574      incorporated into tutorial_cfc_offline which has been producing
575      identical results for a few days of testing
576    o add new parameter: sideDragFactor to enable half-slip-side BC
577      and change side-drag S/R to use viscosity from mom_calc_visc
578      (can switch back by setting sideDragFactor=0.); affects results at
579      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
580       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
581    o vorticity & strain are now computed without masking, to account for
582      no-slip-side BC in variable viscosity calculation ; mask is applied
583      anyway later on, before computing advection/coriolis terms.
584    o modify exp4 to test new obcs support for reading from external files
585      and for passive tracers
586    o fix behavior of ptracers_monitor when monitor output is written to a
587      netcdf-file; still not independent of monitor.F (writes in the same
588      file).
589    o change default value of tRef (put a uniform, meaningful value for ocean
590      & atmos) and initialize sRef (was missing, as Martin mentioned).
591    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
592      to be proportional to enstrophy dissipation length.  Thus,
593       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
594      This is now consistent with Smagorinsky and with the manual.
595    
596    checkpoint57u_post
597    o OBCS and PTRACERS: add open boundary support for passive tracers
598      - either use homogenous (pseudo) v.Neumann conditions or prescribe
599        OB-values from file; this is not different from the way theta and salinity
600        are treated
601      - however, Orlanski-radiation conditions are not supported, and the model
602        will stop if you use pTracers and Orlanski at the same time.
603      - beefed up the rountine obcs_external_fields_load: now only those open
604        boundary values are overwritten with values from files for which there
605        are really files, otherwise the OB-fields remain untouched. This makes
606        it possible to use different OBs at different ends of the domain (as
607        with EXF)
608    o reduce number of exch calls in shap_filt (s2).
609    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
610      truncation level) 4/5 MLAdjust test results (11&12 digits match).
611    
612    checkpoint57t_post
613    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
614    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
615      same truncation, independent of the face number: affects affects several
616      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
617    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
618      note that biharmonic viscosity + no-slip was not tested in any experiment.
619    o fix bug in non-linear free-surf side-drag ; generate new output for
620      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
621    o make mnc honor the writeBinaryPrec flag for most kinds of output
622    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
623    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
624      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
625    o add brackets in multi-terms sum to get same truncation, independent of
626      the face number (manage to get exactly same value of gU,gV at the cs-edge)
627      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
628    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
629      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
630      a maximum grid-scale Reynolds number.  Also, changes all length calculations
631      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
632      Suggested values of viscosity parameters found in mom_calc_visc.
633      Many new viscosity diagnostics available.
634    
635    checkpoint57s_post
636    o Add clearing-house for viscosity calculations, mom_calc_visc and
637      correct numerous bugs in LeithD and Smagorinsky discretizations.  
638      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
639      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
640      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
641      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
642      The Strain-Tension form is now called with useStrainTensonVisc=.true.
643      ViscAhStrain and viscAhTension are now retired.
644    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
645    o In response to JMC's bug report, genmake2 now ignores any soft-links
646      that it finds in the *current* directory when searching for files.
647      Soft-links found in any other source directories will still work as
648      they did before.
649    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
650      a C routine to unlimit the stack size
651    o mnc-ify pkg/aim snapshot vars
652    o mnc-ify pkg/land as requested by Daniel
653    o various changes to mnc including:
654      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
655      - output can now be grouped so that all files within a group
656          change the ITER portion of their names in lock-step together
657      - can now read ("global") PER-FACE (in addition to PER-TILE) files
658          and works with both EXCH1 and EXCH2 (but needs more testing)
659      - writing works for all verification test cases w/ g77 on Linux
660    
661    checkpoint57r_post
662    o make MNC variable initialization happen earlier
663    o add diagnostics for (almost) each term of the momentum Eq.
664    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
665    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
666    o remove MINIMAL_TAVE_OUTPUT option ;
667      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
668    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
669      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
670    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
671    o add time-dependent SST, SSS control
672    o cost terms in ecco/ modularized (new cost_generic.F)
673    o cost_averages routines are modularized (new cost_averagesgeneric.F)
674    o new infrastructure for seaice model vs. obs misfits in seaice/
675      * driver from the_main_loop.F is seaice_cost_driver.F
676      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
677      * gradient check in Exp. 6a of natl_box_adjoint/
678    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
679      (see README file)
680    
681    checkpoint57q_post
682    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
683    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
684      - bug was reported by Jean-Michel and Ian Fenty
685    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
686      update exp. cpl_aim+ocn output.
687    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
688      Needed for high-res. runs with large global files
689      to be able to limit tapelev size
690    o Changed some tests for adjoint:
691      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
692      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
693      * global_ocean.90x40x15/ back to default 3-level checkpointing
694    o Modifications to enable scripted COMMON to MODULE conversion
695      * verification/OpenAD/code/ has necessary scripts and description;
696      * converts, compiles and runs successfully;
697    
698    checkpoint57p_post
699    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
700    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
701      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
702    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
703    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
704      (was already the case for dissipation with mom_vecinv,
705       and also the case for grad.PhiHyd when staggered-timeStep)
706      This will allow to put dissipation out-off the AB time-stepping.
707     Unfortunately, affects truncation error. Update output of exp. that "fails"
708      (cg2d matching number) and leave the others for later: front_relax(10),
709      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
710      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
711    
712    checkpoint57o_post
713    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
714      (2) its ready to be documented during the 20050801 DocFest
715    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
716      for ideal_2D_oce and lab_sea on linux_ia32_g77
717    o set to #undef CTRL_SET_OLD_MAXCVARS_30
718      in global1x1_tot/code_seaice_adj to access indices 32, 33
719      (worth another tag)
720    
721    checkpoint57n_post
722    o adding precip control xx_precip 32
723    o adding swflux control xx_swflux 33
724    o Replacing 10 forcing penalty cost routines by 1 generic.
725    o Implementing partitioning in time-mean and variable adjustment
726      for atmos. state.
727    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
728  o in natl_box_adjoint:  o in natl_box_adjoint:
729    * updated: results_bulk/    * updated exp 1 to 10
730    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
731    o updated global1x1/*_seaice_adj/
732      to incorporate latest changes
733    o enable useSingleCpuIO for mdsio vector routines
734      (applies in particular to tapelev I/O)
735    o removed inefficient K-loop in all active_file*control*.F
736    
737  checkpoint57m_post  checkpoint57m_post
738  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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