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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.747 by dimitri, Mon Nov 20 20:06:43 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 diagnostics: rename few diags:
8  o moved ptracer ctrl index 17 -> 32    s/'PRESSURE'/'RCENTER '/g
9      s/'TICE    '/'oceFreez'/g
10      s/'TAUX    '/'oceTAUX '/g
11      s/'TAUY    '/'oceTAUY '/g
12      s/'SWFLUX  '/'oceQsw  '/g
13      s/DIFx/DFxE/g
14      s/DIFy/DFyE/g
15      and add few ocean-forcing diagnostics:
16      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
17    o modifications to pkg/seaice/growth.F and budget.F, which change results of
18      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
19      as actual snow thickness.  It now refers everywhere to effective snow
20      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
21    
22    checkpoint58r_post
23    o modifications to pkg/seaice/growth.F, which change results of
24      lab_sea experiment: fixes pertain to melting snow over open water, to
25      masking EVAP under sea ice, and to using the correct AREA variable for
26      computations of EVAP, PRECIP, HSNOW, and GHEFF
27    o add ability to read bathy, salt, and theta using MNC (off by def)
28    o add flooding algorithm and advection of HSNOW for pkg/seaice;
29      both are turned off by default and do no change any results
30    o seaice advection with pkg/thsice: a step toward the use of non-linear
31      advection scheme, but #ifdef or commented out for now (requires more EXCH).
32    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
33      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
34      in natl_box (affects results @ truncation level: update output.txt)
35    o multi-threading and IO:
36      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
37      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
38        (needed to work with SingleCpuIO): tested in all verif. exp.
39    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
40      affects the results (but none of the verification test uses this scheme).
41    o Adding some pkg/diagnostics capability to pkg/seaice
42      (will certainly be subject to changes)
43    o ctrl: adding new control variables:
44      lwflux, lwdown, evap, snowprecip, apressure, runoff
45    
46    checkpoint58q_post
47    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
48      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
49      high_res_cube configuration by 4% on Columbia.
50    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
51      add (in global_with_exf/code) a version of EXF_INTERP_READ without
52      dynamical allocation (seems to work in multi-threaded).
53    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
54      single CPU io) so that TAF does not have to see EESUPPORT.h
55    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
56    
57    checkpoint58p_post
58    o obcs: stop if obcs is used with useCDscheme = .true.
59    o shelfice:
60     - fix a sign error so that no slip at shelfice interface works
61     - remove stop for combination non-hydrostatic code and shelfice. That does
62       not mean, that the results are correct, but at least they are numerically
63       stable
64    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
65    o added adjoint exch routined for all exch*3d* routines
66      and updated flow directives
67    
68    checkpoint58o_post
69    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
70      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
71    o change controling S/R for writing pickup file (new S/R do_write_pickup)
72      and clean-up reading/writing of pickup files.
73    o fix local version of read/write pickup (NH part) in rotating_tank/code
74    o simplify EXCH interface:
75     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
76     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
77    o added the regrid package
78    o shelfice:
79     - add a simple boundary layer scheme to reduce noise
80     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
81    
82    checkpoint58n_post
83    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
84       local variable (not in common block).
85    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
86      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
87      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
88        to work with SingleCpuIO.
89    o add "_d 0" to real constant of pkg/cfc subroutines ;
90       update exp. cfc_exemple & tutorial_cfc_offline output files.
91    o multi-threading and IO:
92      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
93        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
94      - barrier before and after reading.
95      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
96      - avoid using MDS_WRITELOCAL for LAND pkg output.
97      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
98        common-block variables ; Allows multi-threading with master-thread IO.
99    o change default MAX_NO_THREADS from 32 to 4 ;
100      and stop cleanly when MAX_NO_THREADS is too small.
101    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
102    
103    checkpoint58m_post
104    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
105       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
106    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
107       keep global_ocean.90x40x15 (for AD testing) with former secondary test
108       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
109    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
110        add MITgcm_tutorials (= code + all the tutorials)
111    o ecco, option to compute cost for total ssh (mean+anom)
112    o consistent with addition of ptracer and ssh in pkg/profiles
113    o profiles: adding ptracer and ssh
114    o testreport: change multi-test output-file name
115      (from output.txt.{name} to output.{name}.txt)
116    o profiles: now ok for mutli-tiles case
117    o seaice: add 4 parameters for different advection schemes for area,
118      (effective) seaice thickness, enthalphy, and snow height. Their default
119      is the standard parameter SEAICEadvScheme
120    o calc_gw:
121     - add cosFacU in zonal viscous flux (harmonic.visc.).
122     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
123       of tutorial_plume_on_slope.
124    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
125    o calc_gw: true flux-form, account for horizontal grid spacing.
126      update rotating_tank results, but not plume_on_slope (affected at
127      truncation level, 11 digits).
128    
129    checkpoint58l_post
130    o calc_gw:
131     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
132     - remove side-drag for now (need to fix it); update plume_on_slope results.
133     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
134    o commit code to make SST/SSS weights spatially variable
135      (based on either variable in-situ or variable initial T/S weights)
136    o pkg/ecco:
137      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
138        now based on horizontally varying weights wthetaLev, wsaltLev
139      * cost_averagesflags now returns year indices in addition to day, month
140      * sflux balance is performed on annual basis
141        (sflxumm, sfluxmm2, bal_sfluxmm)
142      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
143        including separate counting and multipliers
144    o pkg/rbcs
145      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
146    
147    checkpoint58k_post
148    o testreport:
149     - always build in dir. "build" (if not there, mkdir build instead of building
150       & running in input)
151     - run in dir run (if it exists), in build otherwise.
152     - call prepare_run (if input/prepare_run exists)
153     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
154    o pkg/exf modifications to interpolation and rotation routines for more
155       reasonable treatment of North Pole singularity: for tracers North Pole
156       value is set to northernmost zonal-mean value, for zonal velocity it is
157       set to zero, and for meridional velocity it is set to northernmost value.
158    o pkg/exf/exf_check_range.F
159     - add tile index to diagnostics and move stop statement to the very
160       end of the routine.
161    o pkg/diagnostics: (diagnostics_main_init.F)
162      define title of isomorphic variables according to the current config.
163    o pkg/thsice with pkg/seaice dynamics:
164    - fix domain of computation (interior only, required for exf) and do exchanges
165    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
166    o towards a standard way of dealing with multi-threading in MONITOR
167      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
168    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
169       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
170    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
171    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
172    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
173       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
174    o tracer advection:
175     - clean-up and simplify calc_common_factors.F
176     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
177       advection subroutine (but still not used within DST advection S/R)
178    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
179    
180    checkpoint58j_post
181    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
182      from file (collects calls previously in FORWARD_STEP)
183    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
184    o adjoint store dir. adjusted accordingly
185    o genmake2
186      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
187    
188    checkpoint58i_post
189    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
190      on wind stress (SEAICEstressFactor defaults to 1.)
191    o Total number of Timers is finite (<=40): comment out 2 non-essential one
192      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
193    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
194      on CS-grid: no longer loosing mass.
195    o exf & curvilinear-grid: no longer modify longitude xC & xG.
196    o pkg/ggl90: fix sloppy output and fix a bug
197    o pkg/seaice: added SEAICEuseEVPpickup parameter
198      - Set to false in order to start EVP solver with
199        non-EVP pickup files when using SEAICEuseEVP
200      - fix sign error in diffusion in seaice_calc_rhs
201    
202    checkpoint58h_post
203    * Modifications for bottom topography control
204      o replace hFacC by _hFacC at various places
205      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
206      o add non-self-adjoint cg2d_nsa
207      o update autodiff support routines
208      o re-initialise hfac after ctrl_depth_ini
209      o works for 5x5 box, doesnt work for global_ocean.90x40x15
210    * Adding verification for 5x5 box (4-layer) bottom topography control
211    
212    checkpoint58g_post
213    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
214       used for mean seasonal cycle, mean diurnal cycle); add an example
215       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
216    o pkg/ggl90:
217      - add parameter (minimum surface kinetic energy)
218      - fix bug (avoiding division by zero)
219    o couple pkg/thsice to pkg/seaice:
220      - modify advection in seaice to accomodate new scalar fields to be advected
221      - only muliDimAdection scheme work with seaice/thsice
222      - mapping of thsice-variables to seaice-variables, back and forth
223      - does not break the verification experiments, but does not give the
224        desired results either
225    o pkg/seaice
226      - make (default) second order advection a bit less confusing?
227    
228    checkpoint58f_post
229    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
230      to pkg/seaice):
231      - new routines thsice_map_exf and thsice_get_exf provide the interface
232      - add an additional formal parameter to thsice_solve4temp
233    o pkg/exf:
234      - add new fields wspeed, snowprecip (to be able to couple to thsice)
235      - correct Stefan-Boltzmann constant
236      - new parameter for longwave surface emittance
237      - separate some stuff from exf_bulkformulae into new routines  
238        exf_radiation, exf_wind
239      - add new parameters and constants: longwave emissivity for ocean, ice
240        and snow, evaporation parameters over ice
241      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
242        either wind from stress or stress from wind
243    o pkg/thSIce:
244    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
245    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
246       and THSICE_CALC_THICKN
247    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
248    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
249      to make debugging easier.
250    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
251    o pkg/bulk_force:
252      - clean-up comments and parameters ;
253      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
254    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
255      generate new output for test-experiment: aim.5l_cs.thSI
256    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
257      testreport accordingly
258    
259    checkpoint58e_post
260    o SEAICE_CGRID adjoint done
261    o R_STAR adjoint implemented.
262      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
263      * need to sort out init. of h0facc, etc.
264    o Make pkg/profile fully independent of ecco,cost, etc. stuff
265      to be able to use it in pure forward.
266    
267    checkpoint58d_post
268    o upgrade simple test-experiment to tutorial example:
269     step.1: duplicate the experiment and (step.2) will remove the old copy.
270      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
271      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
272      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
273      tutorial_global_oce_biogeo    <- copy of dic_example
274      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
275      tutorial_plume_on_slope       <- copy of plume_on_slope
276      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
277      tutorial_global_oce_optim     <- empty for now (David ?)
278      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
279     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
280    o correct a sign problem in cost_scat.F
281    o obcs and ptracers: fix boundary conditions for advections schemes
282      with larger stencil
283    o thsice adjoint: start
284    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
285      completeness
286    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
287      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
288    o ptracers adjoint:
289      * avoid extensive recomputatations
290      * fix missing re-init. of gptr (missed by TAF)
291    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
292      me to turn off the excessive output to STDOUT that this package produces
293    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
294      and add those terms in Vector-Invariant formulation.
295    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
296      if the control period (xx_hfluxperiod etc) is 0
297    o in profiles pkg, clean routines and fix details
298    o in ecco pkg, reading ssh data:
299      fix problem in case the model does not start at iter0=0
300    o fix mnc-pickup/restart for ptracers
301    o new package prifiles:
302      code to compute profile-based cost by Gael Forget
303      (modifs in ecco, ctrl, autodiff)
304    o Benign bug fix in initialization (spotted by M. Mazloff) of
305      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
306    
307    checkpoint58c_post
308    o adjoint: finish NLFS adjoint and provide reference output in
309      verification/global_ocean.90x40x15/results_ad_nlfs
310    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
311      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
312      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
313      with SEAICE_CGRID defined.
314    o move calendarDumps from "data" to "data.cal" and clean-up the code
315      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
316    o add useEXF & useCAL flags (for now, set in hard-coded way)
317    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
318      (were missing in NH mode, and wrong in quasihydrostatic mode).
319      waiting for Chris updated version of calc_gw to add those CALLs.
320    o fix bug in quasihydrostatic S/R ;
321      add a test for this option: global_ocean.90x40x15.qshyd
322    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
323      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
324    o add on/off flag useOffLine for package OFFLINE
325    o seaice:
326      - modify advection so that it works also on the C-grid
327      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
328        problem in multi-tile runs with C-grid
329      - add flags for clipping ice velocities and/or masking solver forcing
330      - fix drag (ocean on ice) formulation and a bug that caused noise in the
331        C-grid solver
332      - added a few comments to seaice_diffusion.F
333      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
334        are now exclusive)
335      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
336        required re-ordering the code a little:
337       + make DAIRN global variable (defined in SEAICE)
338       + move computation of the viscosities eta and zeta into a new separate
339         routine (because I need to recompute them in seaice_ocean_stress.F)
340    
341    checkpoint58b_post
342    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
343      update output.txt of exp. aim.5l_cs.thSI
344    o various mnc cleanups and improvements:
345      + shrink lookup tables by factor of ~4
346      + better error reporting when running out of lookup space
347      + able to handle longer path/file names (up to 500 chars)
348    o adjoint:
349      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
350      - TBD: "hidden" mom_vecinv recomp. in dynamics
351    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
352     (allow to differentiate between forcing components using new integer flags:
353      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
354     and add new flag to put Dissipation tendency out of Adams-Bashforth.
355    o ecco
356      - enable trend removal from SSH anomaly obs.
357    o adjoint
358      - a fix for PmEpR when #undef EXACT_CONSERV
359      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
360      - try to fix "hidden" recomp. in forward_step for NLFS
361        (NLFS seems broken sometimes after I checked it in)
362    o seaice:
363     - add c-grid version of the dynamic solver:
364       + three new routines that are the c-grid substitute lsr, dynsolver
365         and ostres
366       + put a few fields that were local to dynsolver into global common
367         blocks, so that I can move the computation of stresses etc into
368         seaice_lsr (saves coding but may break the adjoint).
369     - replace more hardwired parameters by runtime parameters
370     - add ice masks that mask the rhs of the implicit solvers where there
371       is no ice (commented out in seaice_dynsolver, because i am not sure
372       if this works properly), eventually this should replace the clipping
373       of ice velocities in seaice_dynsolver to +/-40cm/s.
374    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
375      include it only where its needed
376    o move balancing of fluxes before the call of external_forcing_surf
377    o seaice:
378      - correct units of turning angles (now they are really in degrees)
379      - move computation of GWATX/Y out of main routine into dynsolver
380      - initialize GWATX/Y in seaice_init
381    o Apply mask on Fresh-Water flux (needed for SSH forcing).
382      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
383    o seaice: add runtime flags for turning angles (default to zero)
384    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
385      and trend from exf forcing and ctrl control adjustments
386    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
387      (since checkpoint57x_post)
388    o change the default rotation period to 86164.s = the Earth rotation
389    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
390      and based on a reference stratification. Tested within hs94.cs-32x32x5.
391    o seaice advection: add code for choosing between the default (2nd order
392      central differences) and multiDim advection schemes provided by
393      pkg/generic_advdiff
394    o seaice:
395      - removed all references to SEAICE_GRID.h fields from
396        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
397        (cubed-sphere configuration will change a little)
398      - grid computations in seaice_init are obsolete now.
399      - cleaned up code a little so that is easier to read (hopefully).
400      - added new (better?) discretizations of default advection and diffusion
401        (turn on with SEAICEuseFluxForm)
402      - replace 1 in 3d global fields by kSurface in growth.F
403      
404    checkpoint58a_post
405    o seaice:
406      - bug fix in advect.F
407    o shelfice:
408      - separate shelfice load anomaly from pload (breaks with time
409        dependent forcing), => introduce constant field shelficeLoadAnomaly.
410        Its default is 0., but it may be computed more cleverly from (unknown)
411        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
412        done offline. A good approximation of the pressure load anomaly is
413        necessary to avoid large initial adjustment processes underneath
414        deep-reaching shelfice.
415      - small fix in ISOMIP shelfice_thermodynamics
416      - add more sophisticated thermodynamics of Hellmer (1989), this is
417        now the default
418      - give a few constants more intuitive names
419    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
420      if bulk formulae are used in long integration (especially EmPmR). Turn
421      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
422      if balancePrintMean, the imbalance that is substracted is printed to
423      STDOUT.
424    o fix bug (typo) in obcs_apply_eta.F
425    o add a new package shelfice which enables us to model the circulation
426      underneath shelf-ice with draughts of hundreds of meters.
427     - works
428     - to do: + include improved thermodynamics
429              + check whether kSurfC (from model/inc/SURFACE.h) can be used
430                instead of new field kTopC
431              + can we use topoFile, Ro_surf and existing code in ini_depth.F
432                instead of new field R_shelfIce and new code in ini_depth.F
433                and ini_mask_etc.F?
434              + adjust vertical mixing schemes?
435    o seaice pkg:
436     - add a cpp-flag to include a simple formula for a salinity dependent
437       freezing point of sea water at the surface
438     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
439       meridional stresses are now different (and hopefully correct)
440    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
441       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
442       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
443    o pkg/diagnostics: add options and parameters for regional-statistics
444       diagnostics ; define regions by reading a region-mask from a file
445       (might add other options later)
446    o pkg/bulk_force:
447     - add option and parameters to use AIM surface-flux formulae.
448     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
449       others forcing fields (defined in PARM05, parameter file "data") are loaded
450       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
451     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
452     - use the right EXCH call for uwind,vwind (to work on CS-grid).
453     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
454       and parameters (note: calcWindStress replaces .NOT.readwindstress).
455     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
456    
457    checkpoint58
458    o add "--embed-source" option to genmake2 which, when the supporting
459      tools can be compiled (as determined by genmake2) will turn on the
460      embed_files package which then embeds the entire MITgcm source code
461      (*.[fFhc] + Makefile) used for the build within the executable
462      - requested by CNH but off by default
463      - adds a paltry <9MB to the mitgcmuv executable in most cases
464      - only writes the output when useEMBEDSRC in eedata is true
465    o clean up 3-dim. relaxation codes:
466      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
467      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
468      * Thanks to Tom Haine for testing!
469    
470    checkpoint57z_post
471    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
472      affects output (@ truncation level) of exp. plume_on_slope ; updated.
473    o fix the pickup behavior for obcs in combination with ptracers
474    o fix a bug in ptracers_external_fields_load
475    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
476      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
477    o transfered surface NH pressure to eta field (if exactConserv).
478    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
479         and update lab_sea output.txt file.
480    o completing 3-dim. relaxation code: additional term
481         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
482      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
483      * At compile time, in "EXF_OPTIONS.h" set
484          #define  ALLOW_CLIMTEMP_RELAXATION
485          #define  ALLOW_CLIMSALT_RELAXATION
486      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
487          tauThetaClimRelax3Dim = 15552000.0,
488          tauSaltClimRelax3Dim  = 15552000.0,
489      * 3 cases:
490          1) Use a constant-in-time 3-dim. field
491          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
492          3) Real-time relax. to time-evolving prescribed field
493    o Adding Laplacian-type smoothness constraint on
494      initial and boundary (forcing) controls (ic, bc)
495      * enable at compile-time via
496        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
497      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
498      * Absolute scale somewhat unclear so far
499      * no area weighting was included since no other cost term does so far
500    
501    checkpoint57y_post
502    First step for a NLFS adjoint
503    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
504    o new init. routines for calc_r_star, calc_surf_dr
505    o still need to deal with ini_masks_etc
506    o testreport seemed happy
507    checkpoint57y_pre
508    
509    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
510    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
511    o add new offset feature to offline pkg (plus minor cleanup)
512    o cfc fixes for final year of integration
513    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
514      be in GCHEM_OPTIONS).
515    
516    checkpoint57x_post
517    o fix testreport Pb in multiple test experiment.
518    o cleanup our namelist syntax in verification:
519      - make it more F95 standards compliant (some work still needed)
520      - allows the vast majority of our tests to work with gfortran
521    o Non-Hydrostatic:
522     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
523     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
524    o Allow to apply AB on T,S rather than on AB(gT,gS):
525     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
526     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
527       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
528     - need a "clever" read_pickup to restart from the other AB formulation
529    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
530    o remove some unused variables (reduces number of compiler warnings)
531    o adjoint
532      * Disable useVariableViscosity for adjoint for time being
533        (there are a number of extensive recomputations)
534      * Initialize certain variables needed for adjoint
535    
536    checkpoint57w_post
537    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
538                 fix the singleCpuIO RS version of MDSWRITEFIELD
539       and add a WARNING if using globalFiles=T with multi-processors.
540    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
541      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
542    o tracer advection scheme:
543      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
544       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
545       was not very convenient).
546      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
547       (further tests needed for the implicit DST & Flux-Limiter schemes).
548    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
549      and sRef for convenience, handy, when you want to initialize
550      ptracers in a large domain with a constant non-zero value. Also,
551      untangle ptracers_init.F a little.
552    
553    checkpoint57v_post
554    o change dome exp. to use variable viscosity in side-drag terms.
555    o remove all the files from the cfc_offline test since they are now
556      incorporated into tutorial_cfc_offline which has been producing
557      identical results for a few days of testing
558    o add new parameter: sideDragFactor to enable half-slip-side BC
559      and change side-drag S/R to use viscosity from mom_calc_visc
560      (can switch back by setting sideDragFactor=0.); affects results at
561      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
562       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
563    o vorticity & strain are now computed without masking, to account for
564      no-slip-side BC in variable viscosity calculation ; mask is applied
565      anyway later on, before computing advection/coriolis terms.
566    o modify exp4 to test new obcs support for reading from external files
567      and for passive tracers
568    o fix behavior of ptracers_monitor when monitor output is written to a
569      netcdf-file; still not independent of monitor.F (writes in the same
570      file).
571    o change default value of tRef (put a uniform, meaningful value for ocean
572      & atmos) and initialize sRef (was missing, as Martin mentioned).
573    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
574      to be proportional to enstrophy dissipation length.  Thus,
575       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
576      This is now consistent with Smagorinsky and with the manual.
577    
578    checkpoint57u_post
579    o OBCS and PTRACERS: add open boundary support for passive tracers
580      - either use homogenous (pseudo) v.Neumann conditions or prescribe
581        OB-values from file; this is not different from the way theta and salinity
582        are treated
583      - however, Orlanski-radiation conditions are not supported, and the model
584        will stop if you use pTracers and Orlanski at the same time.
585      - beefed up the rountine obcs_external_fields_load: now only those open
586        boundary values are overwritten with values from files for which there
587        are really files, otherwise the OB-fields remain untouched. This makes
588        it possible to use different OBs at different ends of the domain (as
589        with EXF)
590    o reduce number of exch calls in shap_filt (s2).
591    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
592      truncation level) 4/5 MLAdjust test results (11&12 digits match).
593    
594    checkpoint57t_post
595    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
596    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
597      same truncation, independent of the face number: affects affects several
598      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
599    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
600      note that biharmonic viscosity + no-slip was not tested in any experiment.
601    o fix bug in non-linear free-surf side-drag ; generate new output for
602      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
603    o make mnc honor the writeBinaryPrec flag for most kinds of output
604    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
605    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
606      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
607    o add brackets in multi-terms sum to get same truncation, independent of
608      the face number (manage to get exactly same value of gU,gV at the cs-edge)
609      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
610    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
611      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
612      a maximum grid-scale Reynolds number.  Also, changes all length calculations
613      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
614      Suggested values of viscosity parameters found in mom_calc_visc.
615      Many new viscosity diagnostics available.
616    
617    checkpoint57s_post
618    o Add clearing-house for viscosity calculations, mom_calc_visc and
619      correct numerous bugs in LeithD and Smagorinsky discretizations.  
620      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
621      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
622      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
623      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
624      The Strain-Tension form is now called with useStrainTensonVisc=.true.
625      ViscAhStrain and viscAhTension are now retired.
626    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
627    o In response to JMC's bug report, genmake2 now ignores any soft-links
628      that it finds in the *current* directory when searching for files.
629      Soft-links found in any other source directories will still work as
630      they did before.
631    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
632      a C routine to unlimit the stack size
633    o mnc-ify pkg/aim snapshot vars
634    o mnc-ify pkg/land as requested by Daniel
635    o various changes to mnc including:
636      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
637      - output can now be grouped so that all files within a group
638          change the ITER portion of their names in lock-step together
639      - can now read ("global") PER-FACE (in addition to PER-TILE) files
640          and works with both EXCH1 and EXCH2 (but needs more testing)
641      - writing works for all verification test cases w/ g77 on Linux
642    
643    checkpoint57r_post
644    o make MNC variable initialization happen earlier
645    o add diagnostics for (almost) each term of the momentum Eq.
646    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
647    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
648    o remove MINIMAL_TAVE_OUTPUT option ;
649      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
650    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
651      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
652    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
653    o add time-dependent SST, SSS control
654    o cost terms in ecco/ modularized (new cost_generic.F)
655    o cost_averages routines are modularized (new cost_averagesgeneric.F)
656    o new infrastructure for seaice model vs. obs misfits in seaice/
657      * driver from the_main_loop.F is seaice_cost_driver.F
658      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
659      * gradient check in Exp. 6a of natl_box_adjoint/
660    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
661      (see README file)
662    
663    checkpoint57q_post
664    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
665    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
666      - bug was reported by Jean-Michel and Ian Fenty
667    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
668      update exp. cpl_aim+ocn output.
669    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
670      Needed for high-res. runs with large global files
671      to be able to limit tapelev size
672    o Changed some tests for adjoint:
673      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
674      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
675      * global_ocean.90x40x15/ back to default 3-level checkpointing
676    o Modifications to enable scripted COMMON to MODULE conversion
677      * verification/OpenAD/code/ has necessary scripts and description;
678      * converts, compiles and runs successfully;
679    
680    checkpoint57p_post
681    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
682    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
683      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
684    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
685    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
686      (was already the case for dissipation with mom_vecinv,
687       and also the case for grad.PhiHyd when staggered-timeStep)
688      This will allow to put dissipation out-off the AB time-stepping.
689     Unfortunately, affects truncation error. Update output of exp. that "fails"
690      (cg2d matching number) and leave the others for later: front_relax(10),
691      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
692      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
693    
694    checkpoint57o_post
695    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
696      (2) its ready to be documented during the 20050801 DocFest
697    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
698      for ideal_2D_oce and lab_sea on linux_ia32_g77
699    o set to #undef CTRL_SET_OLD_MAXCVARS_30
700      in global1x1_tot/code_seaice_adj to access indices 32, 33
701      (worth another tag)
702    
703    checkpoint57n_post
704    o adding precip control xx_precip 32
705    o adding swflux control xx_swflux 33
706    o Replacing 10 forcing penalty cost routines by 1 generic.
707    o Implementing partitioning in time-mean and variable adjustment
708      for atmos. state.
709    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
710  o in natl_box_adjoint:  o in natl_box_adjoint:
711    * updated: results_bulk/    * updated exp 1 to 10
712    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
713    o updated global1x1/*_seaice_adj/
714      to incorporate latest changes
715    o enable useSingleCpuIO for mdsio vector routines
716      (applies in particular to tapelev I/O)
717    o removed inefficient K-loop in all active_file*control*.F
718    
719  checkpoint57m_post  checkpoint57m_post
720  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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