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revision 1.569 by jmc, Wed Oct 12 02:13:40 2005 UTC revision 1.660 by jmc, Thu May 25 18:25:13 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 pkg/thSIce:
8    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
9    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
10       and THSICE_CALC_THICKN
11    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
12    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
13      to make debugging easier.
14    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
15    o pkg/bulk_force:
16      - clean-up comments and parameters ;
17      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
18    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
19      generate new output for test-experiment: aim.5l_cs.thSI
20    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
21     testreport accordingly
22    
23    checkpoint58e_post
24    o SEAICE_CGRID adjoint done
25    o R_STAR adjoint implemented.
26      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
27      * need to sort out init. of h0facc, etc.
28    o Make pkg/profile fully independent of ecco,cost, etc. stuff
29      to be able to use it in pure forward.
30    
31    checkpoint58d_post
32    o upgrade simple test-experiment to tutorial example:
33     step.1: duplicate the experiment and (step.2) will remove the old copy.
34      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
35      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
36      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
37      tutorial_global_oce_biogeo    <- copy of dic_example
38      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
39      tutorial_plume_on_slope       <- copy of plume_on_slope
40      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
41      tutorial_global_oce_optim     <- empty for now (David ?)
42      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
43     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
44    o correct a sign problem in cost_scat.F
45    o obcs and ptracers: fix boundary conditions for advections schemes
46      with larger stencil
47    o thsice adjoint: start
48    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
49      completeness
50    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
51      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
52    o ptracers adjoint:
53      * avoid extensive recomputatations
54      * fix missing re-init. of gptr (missed by TAF)
55    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
56      me to turn off the excessive output to STDOUT that this package produces
57    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
58      and add those terms in Vector-Invariant formulation.
59    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
60      if the control period (xx_hfluxperiod etc) is 0
61    o in profiles pkg, clean routines and fix details
62    o in ecco pkg, reading ssh data:
63      fix problem in case the model does not start at iter0=0
64    o fix mnc-pickup/restart for ptracers
65    o new package prifiles:
66      code to compute profile-based cost by Gael Forget
67      (modifs in ecco, ctrl, autodiff)
68    o Benign bug fix in initialization (spotted by M. Mazloff) of
69      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
70    
71    checkpoint58c_post
72    o adjoint: finish NLFS adjoint and provide reference output in
73      verification/global_ocean.90x40x15/results_ad_nlfs
74    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
75      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
76      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
77      with SEAICE_CGRID defined.
78    o move calendarDumps from "data" to "data.cal" and clean-up the code
79      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
80    o add useEXF & useCAL flags (for now, set in hard-coded way)
81    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
82      (were missing in NH mode, and wrong in quasihydrostatic mode).
83      waiting for Chris updated version of calc_gw to add those CALLs.
84    o fix bug in quasihydrostatic S/R ;
85      add a test for this option: global_ocean.90x40x15.qshyd
86    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
87      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
88    o add on/off flag useOffLine for package OFFLINE
89    o seaice:
90      - modify advection so that it works also on the C-grid
91      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
92        problem in multi-tile runs with C-grid
93      - add flags for clipping ice velocities and/or masking solver forcing
94      - fix drag (ocean on ice) formulation and a bug that caused noise in the
95        C-grid solver
96      - added a few comments to seaice_diffusion.F
97      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
98        are now exclusive)
99      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
100        required re-ordering the code a little:
101       + make DAIRN global variable (defined in SEAICE)
102       + move computation of the viscosities eta and zeta into a new separate
103         routine (because I need to recompute them in seaice_ocean_stress.F)
104    
105    checkpoint58b_post
106    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
107      update output.txt of exp. aim.5l_cs.thSI
108    o various mnc cleanups and improvements:
109      + shrink lookup tables by factor of ~4
110      + better error reporting when running out of lookup space
111      + able to handle longer path/file names (up to 500 chars)
112    o adjoint:
113      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
114      - TBD: "hidden" mom_vecinv recomp. in dynamics
115    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
116     (allow to differentiate between forcing components using new integer flags:
117      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
118     and add new flag to put Dissipation tendency out of Adams-Bashforth.
119    o ecco
120      - enable trend removal from SSH anomaly obs.
121    o adjoint
122      - a fix for PmEpR when #undef EXACT_CONSERV
123      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
124      - try to fix "hidden" recomp. in forward_step for NLFS
125        (NLFS seems broken sometimes after I checked it in)
126    o seaice:
127     - add c-grid version of the dynamic solver:
128       + three new routines that are the c-grid substitute lsr, dynsolver
129         and ostres
130       + put a few fields that were local to dynsolver into global common
131         blocks, so that I can move the computation of stresses etc into
132         seaice_lsr (saves coding but may break the adjoint).
133     - replace more hardwired parameters by runtime parameters
134     - add ice masks that mask the rhs of the implicit solvers where there
135       is no ice (commented out in seaice_dynsolver, because i am not sure
136       if this works properly), eventually this should replace the clipping
137       of ice velocities in seaice_dynsolver to +/-40cm/s.
138    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
139      include it only where its needed
140    o move balancing of fluxes before the call of external_forcing_surf
141    o seaice:
142      - correct units of turning angles (now they are really in degrees)
143      - move computation of GWATX/Y out of main routine into dynsolver
144      - initialize GWATX/Y in seaice_init
145    o Apply mask on Fresh-Water flux (needed for SSH forcing).
146      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
147    o seaice: add runtime flags for turning angles (default to zero)
148    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
149      and trend from exf forcing and ctrl control adjustments
150    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
151      (since checkpoint57x_post)
152    o change the default rotation period to 86164.s = the Earth rotation
153    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
154      and based on a reference stratification. Tested within hs94.cs-32x32x5.
155    o seaice advection: add code for choosing between the default (2nd order
156      central differences) and multiDim advection schemes provided by
157      pkg/generic_advdiff
158    o seaice:
159      - removed all references to SEAICE_GRID.h fields from
160        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
161        (cubed-sphere configuration will change a little)
162      - grid computations in seaice_init are obsolete now.
163      - cleaned up code a little so that is easier to read (hopefully).
164      - added new (better?) discretizations of default advection and diffusion
165        (turn on with SEAICEuseFluxForm)
166      - replace 1 in 3d global fields by kSurface in growth.F
167      
168    checkpoint58a_post
169    o seaice:
170      - bug fix in advect.F
171    o shelfice:
172      - separate shelfice load anomaly from pload (breaks with time
173        dependent forcing), => introduce constant field shelficeLoadAnomaly.
174        Its default is 0., but it may be computed more cleverly from (unknown)
175        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
176        done offline. A good approximation of the pressure load anomaly is
177        necessary to avoid large initial adjustment processes underneath
178        deep-reaching shelfice.
179      - small fix in ISOMIP shelfice_thermodynamics
180      - add more sophisticated thermodynamics of Hellmer (1989), this is
181        now the default
182      - give a few constants more intuitive names
183    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
184      if bulk formulae are used in long integration (especially EmPmR). Turn
185      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
186      if balancePrintMean, the imbalance that is substracted is printed to
187      STDOUT.
188    o fix bug (typo) in obcs_apply_eta.F
189    o add a new package shelfice which enables us to model the circulation
190      underneath shelf-ice with draughts of hundreds of meters.
191     - works
192     - to do: + include improved thermodynamics
193              + check whether kSurfC (from model/inc/SURFACE.h) can be used
194                instead of new field kTopC
195              + can we use topoFile, Ro_surf and existing code in ini_depth.F
196                instead of new field R_shelfIce and new code in ini_depth.F
197                and ini_mask_etc.F?
198              + adjust vertical mixing schemes?
199    o seaice pkg:
200     - add a cpp-flag to include a simple formula for a salinity dependent
201       freezing point of sea water at the surface
202     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
203       meridional stresses are now different (and hopefully correct)
204    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
205       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
206       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
207    o pkg/diagnostics: add options and parameters for regional-statistics
208       diagnostics ; define regions by reading a region-mask from a file
209       (might add other options later)
210    o pkg/bulk_force:
211     - add option and parameters to use AIM surface-flux formulae.
212     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
213       others forcing fields (defined in PARM05, parameter file "data") are loaded
214       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
215     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
216     - use the right EXCH call for uwind,vwind (to work on CS-grid).
217     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
218       and parameters (note: calcWindStress replaces .NOT.readwindstress).
219     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
220    
221    checkpoint58
222    o add "--embed-source" option to genmake2 which, when the supporting
223      tools can be compiled (as determined by genmake2) will turn on the
224      embed_files package which then embeds the entire MITgcm source code
225      (*.[fFhc] + Makefile) used for the build within the executable
226      - requested by CNH but off by default
227      - adds a paltry <9MB to the mitgcmuv executable in most cases
228      - only writes the output when useEMBEDSRC in eedata is true
229    o clean up 3-dim. relaxation codes:
230      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
231      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
232      * Thanks to Tom Haine for testing!
233    
234    checkpoint57z_post
235    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
236      affects output (@ truncation level) of exp. plume_on_slope ; updated.
237    o fix the pickup behavior for obcs in combination with ptracers
238    o fix a bug in ptracers_external_fields_load
239    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
240      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
241    o transfered surface NH pressure to eta field (if exactConserv).
242    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
243         and update lab_sea output.txt file.
244    o completing 3-dim. relaxation code: additional term
245         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
246      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
247      * At compile time, in "EXF_OPTIONS.h" set
248          #define  ALLOW_CLIMTEMP_RELAXATION
249          #define  ALLOW_CLIMSALT_RELAXATION
250      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
251          tauThetaClimRelax3Dim = 15552000.0,
252          tauSaltClimRelax3Dim  = 15552000.0,
253      * 3 cases:
254          1) Use a constant-in-time 3-dim. field
255          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
256          3) Real-time relax. to time-evolving prescribed field
257    o Adding Laplacian-type smoothness constraint on
258      initial and boundary (forcing) controls (ic, bc)
259      * enable at compile-time via
260        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
261      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
262      * Absolute scale somewhat unclear so far
263      * no area weighting was included since no other cost term does so far
264    
265    checkpoint57y_post
266    First step for a NLFS adjoint
267    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
268    o new init. routines for calc_r_star, calc_surf_dr
269    o still need to deal with ini_masks_etc
270    o testreport seemed happy
271    checkpoint57y_pre
272    
273    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
274    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
275    o add new offset feature to offline pkg (plus minor cleanup)
276    o cfc fixes for final year of integration
277    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
278      be in GCHEM_OPTIONS).
279    
280    checkpoint57x_post
281    o fix testreport Pb in multiple test experiment.
282    o cleanup our namelist syntax in verification:
283      - make it more F95 standards compliant (some work still needed)
284      - allows the vast majority of our tests to work with gfortran
285    o Non-Hydrostatic:
286     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
287     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
288    o Allow to apply AB on T,S rather than on AB(gT,gS):
289     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
290     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
291       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
292     - need a "clever" read_pickup to restart from the other AB formulation
293    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
294    o remove some unused variables (reduces number of compiler warnings)
295    o adjoint
296      * Disable useVariableViscosity for adjoint for time being
297        (there are a number of extensive recomputations)
298      * Initialize certain variables needed for adjoint
299    
300    checkpoint57w_post
301    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
302                 fix the singleCpuIO RS version of MDSWRITEFIELD
303       and add a WARNING if using globalFiles=T with multi-processors.
304    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
305      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
306    o tracer advection scheme:
307      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
308       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
309       was not very convenient).
310      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
311       (further tests needed for the implicit DST & Flux-Limiter schemes).
312    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
313      and sRef for convenience, handy, when you want to initialize
314      ptracers in a large domain with a constant non-zero value. Also,
315      untangle ptracers_init.F a little.
316    
317    checkpoint57v_post
318    o change dome exp. to use variable viscosity in side-drag terms.
319    o remove all the files from the cfc_offline test since they are now
320      incorporated into tutorial_cfc_offline which has been producing
321      identical results for a few days of testing
322    o add new parameter: sideDragFactor to enable half-slip-side BC
323      and change side-drag S/R to use viscosity from mom_calc_visc
324      (can switch back by setting sideDragFactor=0.); affects results at
325      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
326       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
327  o vorticity & strain are now computed without masking, to account for  o vorticity & strain are now computed without masking, to account for
328    no-slip-side BC in variable viscosity calculation ; mask is applied    no-slip-side BC in variable viscosity calculation ; mask is applied
329    anyway later on, before computing advection/coriolis terms.    anyway later on, before computing advection/coriolis terms.
330  o modify exp4 to test new obcs support reading from external files  o modify exp4 to test new obcs support for reading from external files
331    and for passive tracers    and for passive tracers
332  o fix behavior of ptracers_monitor when monitor output is written to a  o fix behavior of ptracers_monitor when monitor output is written to a
333    netcdf-file; still not independent of monitor.F (writes in the same    netcdf-file; still not independent of monitor.F (writes in the same

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