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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.749 by mlosch, Thu Nov 23 10:03:44 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o mom_common/vecinv/fluxform: fix a few initialisation isssues
8  o moved ptracer ctrl index 17 -> 32  o profiles: fix for multithreaded case
9    
10    o diagnostics: rename few diags:
11      s/'PRESSURE'/'RCENTER '/g
12      s/'TICE    '/'oceFreez'/g
13      s/'TAUX    '/'oceTAUX '/g
14      s/'TAUY    '/'oceTAUY '/g
15      s/'SWFLUX  '/'oceQsw  '/g
16      s/DIFx/DFxE/g
17      s/DIFy/DFyE/g
18      and add few ocean-forcing diagnostics:
19      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
20    o modifications to pkg/seaice/growth.F and budget.F, which change results of
21      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
22      as actual snow thickness.  It now refers everywhere to effective snow
23      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
24    
25    checkpoint58r_post
26    o modifications to pkg/seaice/growth.F, which change results of
27      lab_sea experiment: fixes pertain to melting snow over open water, to
28      masking EVAP under sea ice, and to using the correct AREA variable for
29      computations of EVAP, PRECIP, HSNOW, and GHEFF
30    o add ability to read bathy, salt, and theta using MNC (off by def)
31    o add flooding algorithm and advection of HSNOW for pkg/seaice;
32      both are turned off by default and do no change any results
33    o seaice advection with pkg/thsice: a step toward the use of non-linear
34      advection scheme, but #ifdef or commented out for now (requires more EXCH).
35    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
36      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
37      in natl_box (affects results @ truncation level: update output.txt)
38    o multi-threading and IO:
39      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
40      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
41        (needed to work with SingleCpuIO): tested in all verif. exp.
42    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
43      affects the results (but none of the verification test uses this scheme).
44    o Adding some pkg/diagnostics capability to pkg/seaice
45      (will certainly be subject to changes)
46    o ctrl: adding new control variables:
47      lwflux, lwdown, evap, snowprecip, apressure, runoff
48    
49    checkpoint58q_post
50    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
51      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
52      high_res_cube configuration by 4% on Columbia.
53    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
54      add (in global_with_exf/code) a version of EXF_INTERP_READ without
55      dynamical allocation (seems to work in multi-threaded).
56    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
57      single CPU io) so that TAF does not have to see EESUPPORT.h
58    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
59    
60    checkpoint58p_post
61    o obcs: stop if obcs is used with useCDscheme = .true.
62    o shelfice:
63     - fix a sign error so that no slip at shelfice interface works
64     - remove stop for combination non-hydrostatic code and shelfice. That does
65       not mean, that the results are correct, but at least they are numerically
66       stable
67    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
68    o added adjoint exch routined for all exch*3d* routines
69      and updated flow directives
70    
71    checkpoint58o_post
72    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
73      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
74    o change controling S/R for writing pickup file (new S/R do_write_pickup)
75      and clean-up reading/writing of pickup files.
76    o fix local version of read/write pickup (NH part) in rotating_tank/code
77    o simplify EXCH interface:
78     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
79     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
80    o added the regrid package
81    o shelfice:
82     - add a simple boundary layer scheme to reduce noise
83     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
84    
85    checkpoint58n_post
86    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
87       local variable (not in common block).
88    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
89      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
90      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
91        to work with SingleCpuIO.
92    o add "_d 0" to real constant of pkg/cfc subroutines ;
93       update exp. cfc_exemple & tutorial_cfc_offline output files.
94    o multi-threading and IO:
95      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
96        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
97      - barrier before and after reading.
98      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
99      - avoid using MDS_WRITELOCAL for LAND pkg output.
100      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
101        common-block variables ; Allows multi-threading with master-thread IO.
102    o change default MAX_NO_THREADS from 32 to 4 ;
103      and stop cleanly when MAX_NO_THREADS is too small.
104    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
105    
106    checkpoint58m_post
107    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
108       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
109    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
110       keep global_ocean.90x40x15 (for AD testing) with former secondary test
111       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
112    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
113        add MITgcm_tutorials (= code + all the tutorials)
114    o ecco, option to compute cost for total ssh (mean+anom)
115    o consistent with addition of ptracer and ssh in pkg/profiles
116    o profiles: adding ptracer and ssh
117    o testreport: change multi-test output-file name
118      (from output.txt.{name} to output.{name}.txt)
119    o profiles: now ok for mutli-tiles case
120    o seaice: add 4 parameters for different advection schemes for area,
121      (effective) seaice thickness, enthalphy, and snow height. Their default
122      is the standard parameter SEAICEadvScheme
123    o calc_gw:
124     - add cosFacU in zonal viscous flux (harmonic.visc.).
125     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
126       of tutorial_plume_on_slope.
127    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
128    o calc_gw: true flux-form, account for horizontal grid spacing.
129      update rotating_tank results, but not plume_on_slope (affected at
130      truncation level, 11 digits).
131    
132    checkpoint58l_post
133    o calc_gw:
134     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
135     - remove side-drag for now (need to fix it); update plume_on_slope results.
136     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
137    o commit code to make SST/SSS weights spatially variable
138      (based on either variable in-situ or variable initial T/S weights)
139    o pkg/ecco:
140      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
141        now based on horizontally varying weights wthetaLev, wsaltLev
142      * cost_averagesflags now returns year indices in addition to day, month
143      * sflux balance is performed on annual basis
144        (sflxumm, sfluxmm2, bal_sfluxmm)
145      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
146        including separate counting and multipliers
147    o pkg/rbcs
148      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
149    
150    checkpoint58k_post
151    o testreport:
152     - always build in dir. "build" (if not there, mkdir build instead of building
153       & running in input)
154     - run in dir run (if it exists), in build otherwise.
155     - call prepare_run (if input/prepare_run exists)
156     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
157    o pkg/exf modifications to interpolation and rotation routines for more
158       reasonable treatment of North Pole singularity: for tracers North Pole
159       value is set to northernmost zonal-mean value, for zonal velocity it is
160       set to zero, and for meridional velocity it is set to northernmost value.
161    o pkg/exf/exf_check_range.F
162     - add tile index to diagnostics and move stop statement to the very
163       end of the routine.
164    o pkg/diagnostics: (diagnostics_main_init.F)
165      define title of isomorphic variables according to the current config.
166    o pkg/thsice with pkg/seaice dynamics:
167    - fix domain of computation (interior only, required for exf) and do exchanges
168    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
169    o towards a standard way of dealing with multi-threading in MONITOR
170      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
171    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
172       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
173    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
174    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
175    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
176       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
177    o tracer advection:
178     - clean-up and simplify calc_common_factors.F
179     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
180       advection subroutine (but still not used within DST advection S/R)
181    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
182    
183    checkpoint58j_post
184    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
185      from file (collects calls previously in FORWARD_STEP)
186    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
187    o adjoint store dir. adjusted accordingly
188    o genmake2
189      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
190    
191    checkpoint58i_post
192    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
193      on wind stress (SEAICEstressFactor defaults to 1.)
194    o Total number of Timers is finite (<=40): comment out 2 non-essential one
195      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
196    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
197      on CS-grid: no longer loosing mass.
198    o exf & curvilinear-grid: no longer modify longitude xC & xG.
199    o pkg/ggl90: fix sloppy output and fix a bug
200    o pkg/seaice: added SEAICEuseEVPpickup parameter
201      - Set to false in order to start EVP solver with
202        non-EVP pickup files when using SEAICEuseEVP
203      - fix sign error in diffusion in seaice_calc_rhs
204    
205    checkpoint58h_post
206    * Modifications for bottom topography control
207      o replace hFacC by _hFacC at various places
208      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
209      o add non-self-adjoint cg2d_nsa
210      o update autodiff support routines
211      o re-initialise hfac after ctrl_depth_ini
212      o works for 5x5 box, doesnt work for global_ocean.90x40x15
213    * Adding verification for 5x5 box (4-layer) bottom topography control
214    
215    checkpoint58g_post
216    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
217       used for mean seasonal cycle, mean diurnal cycle); add an example
218       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
219    o pkg/ggl90:
220      - add parameter (minimum surface kinetic energy)
221      - fix bug (avoiding division by zero)
222    o couple pkg/thsice to pkg/seaice:
223      - modify advection in seaice to accomodate new scalar fields to be advected
224      - only muliDimAdection scheme work with seaice/thsice
225      - mapping of thsice-variables to seaice-variables, back and forth
226      - does not break the verification experiments, but does not give the
227        desired results either
228    o pkg/seaice
229      - make (default) second order advection a bit less confusing?
230    
231    checkpoint58f_post
232    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
233      to pkg/seaice):
234      - new routines thsice_map_exf and thsice_get_exf provide the interface
235      - add an additional formal parameter to thsice_solve4temp
236    o pkg/exf:
237      - add new fields wspeed, snowprecip (to be able to couple to thsice)
238      - correct Stefan-Boltzmann constant
239      - new parameter for longwave surface emittance
240      - separate some stuff from exf_bulkformulae into new routines  
241        exf_radiation, exf_wind
242      - add new parameters and constants: longwave emissivity for ocean, ice
243        and snow, evaporation parameters over ice
244      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
245        either wind from stress or stress from wind
246    o pkg/thSIce:
247    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
248    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
249       and THSICE_CALC_THICKN
250    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
251    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
252      to make debugging easier.
253    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
254    o pkg/bulk_force:
255      - clean-up comments and parameters ;
256      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
257    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
258      generate new output for test-experiment: aim.5l_cs.thSI
259    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
260      testreport accordingly
261    
262    checkpoint58e_post
263    o SEAICE_CGRID adjoint done
264    o R_STAR adjoint implemented.
265      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
266      * need to sort out init. of h0facc, etc.
267    o Make pkg/profile fully independent of ecco,cost, etc. stuff
268      to be able to use it in pure forward.
269    
270    checkpoint58d_post
271    o upgrade simple test-experiment to tutorial example:
272     step.1: duplicate the experiment and (step.2) will remove the old copy.
273      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
274      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
275      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
276      tutorial_global_oce_biogeo    <- copy of dic_example
277      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
278      tutorial_plume_on_slope       <- copy of plume_on_slope
279      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
280      tutorial_global_oce_optim     <- empty for now (David ?)
281      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
282     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
283    o correct a sign problem in cost_scat.F
284    o obcs and ptracers: fix boundary conditions for advections schemes
285      with larger stencil
286    o thsice adjoint: start
287    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
288      completeness
289    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
290      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
291    o ptracers adjoint:
292      * avoid extensive recomputatations
293      * fix missing re-init. of gptr (missed by TAF)
294    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
295      me to turn off the excessive output to STDOUT that this package produces
296    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
297      and add those terms in Vector-Invariant formulation.
298    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
299      if the control period (xx_hfluxperiod etc) is 0
300    o in profiles pkg, clean routines and fix details
301    o in ecco pkg, reading ssh data:
302      fix problem in case the model does not start at iter0=0
303    o fix mnc-pickup/restart for ptracers
304    o new package prifiles:
305      code to compute profile-based cost by Gael Forget
306      (modifs in ecco, ctrl, autodiff)
307    o Benign bug fix in initialization (spotted by M. Mazloff) of
308      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
309    
310    checkpoint58c_post
311    o adjoint: finish NLFS adjoint and provide reference output in
312      verification/global_ocean.90x40x15/results_ad_nlfs
313    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
314      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
315      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
316      with SEAICE_CGRID defined.
317    o move calendarDumps from "data" to "data.cal" and clean-up the code
318      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
319    o add useEXF & useCAL flags (for now, set in hard-coded way)
320    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
321      (were missing in NH mode, and wrong in quasihydrostatic mode).
322      waiting for Chris updated version of calc_gw to add those CALLs.
323    o fix bug in quasihydrostatic S/R ;
324      add a test for this option: global_ocean.90x40x15.qshyd
325    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
326      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
327    o add on/off flag useOffLine for package OFFLINE
328    o seaice:
329      - modify advection so that it works also on the C-grid
330      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
331        problem in multi-tile runs with C-grid
332      - add flags for clipping ice velocities and/or masking solver forcing
333      - fix drag (ocean on ice) formulation and a bug that caused noise in the
334        C-grid solver
335      - added a few comments to seaice_diffusion.F
336      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
337        are now exclusive)
338      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
339        required re-ordering the code a little:
340       + make DAIRN global variable (defined in SEAICE)
341       + move computation of the viscosities eta and zeta into a new separate
342         routine (because I need to recompute them in seaice_ocean_stress.F)
343    
344    checkpoint58b_post
345    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
346      update output.txt of exp. aim.5l_cs.thSI
347    o various mnc cleanups and improvements:
348      + shrink lookup tables by factor of ~4
349      + better error reporting when running out of lookup space
350      + able to handle longer path/file names (up to 500 chars)
351    o adjoint:
352      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
353      - TBD: "hidden" mom_vecinv recomp. in dynamics
354    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
355     (allow to differentiate between forcing components using new integer flags:
356      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
357     and add new flag to put Dissipation tendency out of Adams-Bashforth.
358    o ecco
359      - enable trend removal from SSH anomaly obs.
360    o adjoint
361      - a fix for PmEpR when #undef EXACT_CONSERV
362      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
363      - try to fix "hidden" recomp. in forward_step for NLFS
364        (NLFS seems broken sometimes after I checked it in)
365    o seaice:
366     - add c-grid version of the dynamic solver:
367       + three new routines that are the c-grid substitute lsr, dynsolver
368         and ostres
369       + put a few fields that were local to dynsolver into global common
370         blocks, so that I can move the computation of stresses etc into
371         seaice_lsr (saves coding but may break the adjoint).
372     - replace more hardwired parameters by runtime parameters
373     - add ice masks that mask the rhs of the implicit solvers where there
374       is no ice (commented out in seaice_dynsolver, because i am not sure
375       if this works properly), eventually this should replace the clipping
376       of ice velocities in seaice_dynsolver to +/-40cm/s.
377    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
378      include it only where its needed
379    o move balancing of fluxes before the call of external_forcing_surf
380    o seaice:
381      - correct units of turning angles (now they are really in degrees)
382      - move computation of GWATX/Y out of main routine into dynsolver
383      - initialize GWATX/Y in seaice_init
384    o Apply mask on Fresh-Water flux (needed for SSH forcing).
385      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
386    o seaice: add runtime flags for turning angles (default to zero)
387    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
388      and trend from exf forcing and ctrl control adjustments
389    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
390      (since checkpoint57x_post)
391    o change the default rotation period to 86164.s = the Earth rotation
392    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
393      and based on a reference stratification. Tested within hs94.cs-32x32x5.
394    o seaice advection: add code for choosing between the default (2nd order
395      central differences) and multiDim advection schemes provided by
396      pkg/generic_advdiff
397    o seaice:
398      - removed all references to SEAICE_GRID.h fields from
399        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
400        (cubed-sphere configuration will change a little)
401      - grid computations in seaice_init are obsolete now.
402      - cleaned up code a little so that is easier to read (hopefully).
403      - added new (better?) discretizations of default advection and diffusion
404        (turn on with SEAICEuseFluxForm)
405      - replace 1 in 3d global fields by kSurface in growth.F
406      
407    checkpoint58a_post
408    o seaice:
409      - bug fix in advect.F
410    o shelfice:
411      - separate shelfice load anomaly from pload (breaks with time
412        dependent forcing), => introduce constant field shelficeLoadAnomaly.
413        Its default is 0., but it may be computed more cleverly from (unknown)
414        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
415        done offline. A good approximation of the pressure load anomaly is
416        necessary to avoid large initial adjustment processes underneath
417        deep-reaching shelfice.
418      - small fix in ISOMIP shelfice_thermodynamics
419      - add more sophisticated thermodynamics of Hellmer (1989), this is
420        now the default
421      - give a few constants more intuitive names
422    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
423      if bulk formulae are used in long integration (especially EmPmR). Turn
424      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
425      if balancePrintMean, the imbalance that is substracted is printed to
426      STDOUT.
427    o fix bug (typo) in obcs_apply_eta.F
428    o add a new package shelfice which enables us to model the circulation
429      underneath shelf-ice with draughts of hundreds of meters.
430     - works
431     - to do: + include improved thermodynamics
432              + check whether kSurfC (from model/inc/SURFACE.h) can be used
433                instead of new field kTopC
434              + can we use topoFile, Ro_surf and existing code in ini_depth.F
435                instead of new field R_shelfIce and new code in ini_depth.F
436                and ini_mask_etc.F?
437              + adjust vertical mixing schemes?
438    o seaice pkg:
439     - add a cpp-flag to include a simple formula for a salinity dependent
440       freezing point of sea water at the surface
441     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
442       meridional stresses are now different (and hopefully correct)
443    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
444       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
445       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
446    o pkg/diagnostics: add options and parameters for regional-statistics
447       diagnostics ; define regions by reading a region-mask from a file
448       (might add other options later)
449    o pkg/bulk_force:
450     - add option and parameters to use AIM surface-flux formulae.
451     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
452       others forcing fields (defined in PARM05, parameter file "data") are loaded
453       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
454     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
455     - use the right EXCH call for uwind,vwind (to work on CS-grid).
456     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
457       and parameters (note: calcWindStress replaces .NOT.readwindstress).
458     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
459    
460    checkpoint58
461    o add "--embed-source" option to genmake2 which, when the supporting
462      tools can be compiled (as determined by genmake2) will turn on the
463      embed_files package which then embeds the entire MITgcm source code
464      (*.[fFhc] + Makefile) used for the build within the executable
465      - requested by CNH but off by default
466      - adds a paltry <9MB to the mitgcmuv executable in most cases
467      - only writes the output when useEMBEDSRC in eedata is true
468    o clean up 3-dim. relaxation codes:
469      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
470      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
471      * Thanks to Tom Haine for testing!
472    
473    checkpoint57z_post
474    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
475      affects output (@ truncation level) of exp. plume_on_slope ; updated.
476    o fix the pickup behavior for obcs in combination with ptracers
477    o fix a bug in ptracers_external_fields_load
478    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
479      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
480    o transfered surface NH pressure to eta field (if exactConserv).
481    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
482         and update lab_sea output.txt file.
483    o completing 3-dim. relaxation code: additional term
484         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
485      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
486      * At compile time, in "EXF_OPTIONS.h" set
487          #define  ALLOW_CLIMTEMP_RELAXATION
488          #define  ALLOW_CLIMSALT_RELAXATION
489      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
490          tauThetaClimRelax3Dim = 15552000.0,
491          tauSaltClimRelax3Dim  = 15552000.0,
492      * 3 cases:
493          1) Use a constant-in-time 3-dim. field
494          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
495          3) Real-time relax. to time-evolving prescribed field
496    o Adding Laplacian-type smoothness constraint on
497      initial and boundary (forcing) controls (ic, bc)
498      * enable at compile-time via
499        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
500      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
501      * Absolute scale somewhat unclear so far
502      * no area weighting was included since no other cost term does so far
503    
504    checkpoint57y_post
505    First step for a NLFS adjoint
506    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
507    o new init. routines for calc_r_star, calc_surf_dr
508    o still need to deal with ini_masks_etc
509    o testreport seemed happy
510    checkpoint57y_pre
511    
512    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
513    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
514    o add new offset feature to offline pkg (plus minor cleanup)
515    o cfc fixes for final year of integration
516    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
517      be in GCHEM_OPTIONS).
518    
519    checkpoint57x_post
520    o fix testreport Pb in multiple test experiment.
521    o cleanup our namelist syntax in verification:
522      - make it more F95 standards compliant (some work still needed)
523      - allows the vast majority of our tests to work with gfortran
524    o Non-Hydrostatic:
525     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
526     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
527    o Allow to apply AB on T,S rather than on AB(gT,gS):
528     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
529     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
530       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
531     - need a "clever" read_pickup to restart from the other AB formulation
532    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
533    o remove some unused variables (reduces number of compiler warnings)
534    o adjoint
535      * Disable useVariableViscosity for adjoint for time being
536        (there are a number of extensive recomputations)
537      * Initialize certain variables needed for adjoint
538    
539    checkpoint57w_post
540    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
541                 fix the singleCpuIO RS version of MDSWRITEFIELD
542       and add a WARNING if using globalFiles=T with multi-processors.
543    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
544      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
545    o tracer advection scheme:
546      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
547       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
548       was not very convenient).
549      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
550       (further tests needed for the implicit DST & Flux-Limiter schemes).
551    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
552      and sRef for convenience, handy, when you want to initialize
553      ptracers in a large domain with a constant non-zero value. Also,
554      untangle ptracers_init.F a little.
555    
556    checkpoint57v_post
557    o change dome exp. to use variable viscosity in side-drag terms.
558    o remove all the files from the cfc_offline test since they are now
559      incorporated into tutorial_cfc_offline which has been producing
560      identical results for a few days of testing
561    o add new parameter: sideDragFactor to enable half-slip-side BC
562      and change side-drag S/R to use viscosity from mom_calc_visc
563      (can switch back by setting sideDragFactor=0.); affects results at
564      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
565       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
566    o vorticity & strain are now computed without masking, to account for
567      no-slip-side BC in variable viscosity calculation ; mask is applied
568      anyway later on, before computing advection/coriolis terms.
569    o modify exp4 to test new obcs support for reading from external files
570      and for passive tracers
571    o fix behavior of ptracers_monitor when monitor output is written to a
572      netcdf-file; still not independent of monitor.F (writes in the same
573      file).
574    o change default value of tRef (put a uniform, meaningful value for ocean
575      & atmos) and initialize sRef (was missing, as Martin mentioned).
576    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
577      to be proportional to enstrophy dissipation length.  Thus,
578       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
579      This is now consistent with Smagorinsky and with the manual.
580    
581    checkpoint57u_post
582    o OBCS and PTRACERS: add open boundary support for passive tracers
583      - either use homogenous (pseudo) v.Neumann conditions or prescribe
584        OB-values from file; this is not different from the way theta and salinity
585        are treated
586      - however, Orlanski-radiation conditions are not supported, and the model
587        will stop if you use pTracers and Orlanski at the same time.
588      - beefed up the rountine obcs_external_fields_load: now only those open
589        boundary values are overwritten with values from files for which there
590        are really files, otherwise the OB-fields remain untouched. This makes
591        it possible to use different OBs at different ends of the domain (as
592        with EXF)
593    o reduce number of exch calls in shap_filt (s2).
594    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
595      truncation level) 4/5 MLAdjust test results (11&12 digits match).
596    
597    checkpoint57t_post
598    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
599    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
600      same truncation, independent of the face number: affects affects several
601      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
602    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
603      note that biharmonic viscosity + no-slip was not tested in any experiment.
604    o fix bug in non-linear free-surf side-drag ; generate new output for
605      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
606    o make mnc honor the writeBinaryPrec flag for most kinds of output
607    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
608    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
609      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
610    o add brackets in multi-terms sum to get same truncation, independent of
611      the face number (manage to get exactly same value of gU,gV at the cs-edge)
612      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
613    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
614      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
615      a maximum grid-scale Reynolds number.  Also, changes all length calculations
616      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
617      Suggested values of viscosity parameters found in mom_calc_visc.
618      Many new viscosity diagnostics available.
619    
620    checkpoint57s_post
621    o Add clearing-house for viscosity calculations, mom_calc_visc and
622      correct numerous bugs in LeithD and Smagorinsky discretizations.  
623      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
624      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
625      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
626      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
627      The Strain-Tension form is now called with useStrainTensonVisc=.true.
628      ViscAhStrain and viscAhTension are now retired.
629    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
630    o In response to JMC's bug report, genmake2 now ignores any soft-links
631      that it finds in the *current* directory when searching for files.
632      Soft-links found in any other source directories will still work as
633      they did before.
634    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
635      a C routine to unlimit the stack size
636    o mnc-ify pkg/aim snapshot vars
637    o mnc-ify pkg/land as requested by Daniel
638    o various changes to mnc including:
639      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
640      - output can now be grouped so that all files within a group
641          change the ITER portion of their names in lock-step together
642      - can now read ("global") PER-FACE (in addition to PER-TILE) files
643          and works with both EXCH1 and EXCH2 (but needs more testing)
644      - writing works for all verification test cases w/ g77 on Linux
645    
646    checkpoint57r_post
647    o make MNC variable initialization happen earlier
648    o add diagnostics for (almost) each term of the momentum Eq.
649    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
650    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
651    o remove MINIMAL_TAVE_OUTPUT option ;
652      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
653    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
654      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
655    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
656    o add time-dependent SST, SSS control
657    o cost terms in ecco/ modularized (new cost_generic.F)
658    o cost_averages routines are modularized (new cost_averagesgeneric.F)
659    o new infrastructure for seaice model vs. obs misfits in seaice/
660      * driver from the_main_loop.F is seaice_cost_driver.F
661      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
662      * gradient check in Exp. 6a of natl_box_adjoint/
663    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
664      (see README file)
665    
666    checkpoint57q_post
667    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
668    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
669      - bug was reported by Jean-Michel and Ian Fenty
670    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
671      update exp. cpl_aim+ocn output.
672    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
673      Needed for high-res. runs with large global files
674      to be able to limit tapelev size
675    o Changed some tests for adjoint:
676      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
677      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
678      * global_ocean.90x40x15/ back to default 3-level checkpointing
679    o Modifications to enable scripted COMMON to MODULE conversion
680      * verification/OpenAD/code/ has necessary scripts and description;
681      * converts, compiles and runs successfully;
682    
683    checkpoint57p_post
684    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
685    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
686      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
687    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
688    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
689      (was already the case for dissipation with mom_vecinv,
690       and also the case for grad.PhiHyd when staggered-timeStep)
691      This will allow to put dissipation out-off the AB time-stepping.
692     Unfortunately, affects truncation error. Update output of exp. that "fails"
693      (cg2d matching number) and leave the others for later: front_relax(10),
694      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
695      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
696    
697    checkpoint57o_post
698    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
699      (2) its ready to be documented during the 20050801 DocFest
700    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
701      for ideal_2D_oce and lab_sea on linux_ia32_g77
702    o set to #undef CTRL_SET_OLD_MAXCVARS_30
703      in global1x1_tot/code_seaice_adj to access indices 32, 33
704      (worth another tag)
705    
706    checkpoint57n_post
707    o adding precip control xx_precip 32
708    o adding swflux control xx_swflux 33
709    o Replacing 10 forcing penalty cost routines by 1 generic.
710    o Implementing partitioning in time-mean and variable adjustment
711      for atmos. state.
712    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
713  o in natl_box_adjoint:  o in natl_box_adjoint:
714    * updated: results_bulk/    * updated exp 1 to 10
715    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
716    o updated global1x1/*_seaice_adj/
717      to incorporate latest changes
718    o enable useSingleCpuIO for mdsio vector routines
719      (applies in particular to tapelev I/O)
720    o removed inefficient K-loop in all active_file*control*.F
721    
722  checkpoint57m_post  checkpoint57m_post
723  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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