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revision 1.554 by edhill, Wed Sep 28 01:59:58 2005 UTC revision 1.663 by mlosch, Sat Jun 3 21:40:08 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 couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
8      to pkg/seaice):
9      - new routines thsice_map_exf and thsice_get_exf provide the interface
10      - add an additional formal parameter to thsice_solve4temp
11    o pkg/exf:
12      - add new fields wspeed, snowprecip (to be able to couple to thsice)
13      - correct Stefan-Boltzmann constant
14      - new parameter for longwave surface emittance
15      - separate some stuff from exf_bulkformulae into new routines  
16        exf_radiation, exf_wind
17      - add new parameters and constants: longwave emissivity for ocean, ice
18        and snow, evaporation parameters over ice
19      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
20        either wind from stress or stress from wind
21    o pkg/thSIce:
22    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
23    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
24       and THSICE_CALC_THICKN
25    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
26    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
27      to make debugging easier.
28    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
29    o pkg/bulk_force:
30      - clean-up comments and parameters ;
31      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
32    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
33      generate new output for test-experiment: aim.5l_cs.thSI
34    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
35      testreport accordingly
36    
37    checkpoint58e_post
38    o SEAICE_CGRID adjoint done
39    o R_STAR adjoint implemented.
40      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
41      * need to sort out init. of h0facc, etc.
42    o Make pkg/profile fully independent of ecco,cost, etc. stuff
43      to be able to use it in pure forward.
44    
45    checkpoint58d_post
46    o upgrade simple test-experiment to tutorial example:
47     step.1: duplicate the experiment and (step.2) will remove the old copy.
48      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
49      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
50      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
51      tutorial_global_oce_biogeo    <- copy of dic_example
52      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
53      tutorial_plume_on_slope       <- copy of plume_on_slope
54      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
55      tutorial_global_oce_optim     <- empty for now (David ?)
56      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
57     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
58    o correct a sign problem in cost_scat.F
59    o obcs and ptracers: fix boundary conditions for advections schemes
60      with larger stencil
61    o thsice adjoint: start
62    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
63      completeness
64    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
65      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
66    o ptracers adjoint:
67      * avoid extensive recomputatations
68      * fix missing re-init. of gptr (missed by TAF)
69    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
70      me to turn off the excessive output to STDOUT that this package produces
71    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
72      and add those terms in Vector-Invariant formulation.
73    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
74      if the control period (xx_hfluxperiod etc) is 0
75    o in profiles pkg, clean routines and fix details
76    o in ecco pkg, reading ssh data:
77      fix problem in case the model does not start at iter0=0
78    o fix mnc-pickup/restart for ptracers
79    o new package prifiles:
80      code to compute profile-based cost by Gael Forget
81      (modifs in ecco, ctrl, autodiff)
82    o Benign bug fix in initialization (spotted by M. Mazloff) of
83      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
84    
85    checkpoint58c_post
86    o adjoint: finish NLFS adjoint and provide reference output in
87      verification/global_ocean.90x40x15/results_ad_nlfs
88    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
89      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
90      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
91      with SEAICE_CGRID defined.
92    o move calendarDumps from "data" to "data.cal" and clean-up the code
93      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
94    o add useEXF & useCAL flags (for now, set in hard-coded way)
95    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
96      (were missing in NH mode, and wrong in quasihydrostatic mode).
97      waiting for Chris updated version of calc_gw to add those CALLs.
98    o fix bug in quasihydrostatic S/R ;
99      add a test for this option: global_ocean.90x40x15.qshyd
100    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
101      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
102    o add on/off flag useOffLine for package OFFLINE
103    o seaice:
104      - modify advection so that it works also on the C-grid
105      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
106        problem in multi-tile runs with C-grid
107      - add flags for clipping ice velocities and/or masking solver forcing
108      - fix drag (ocean on ice) formulation and a bug that caused noise in the
109        C-grid solver
110      - added a few comments to seaice_diffusion.F
111      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
112        are now exclusive)
113      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
114        required re-ordering the code a little:
115       + make DAIRN global variable (defined in SEAICE)
116       + move computation of the viscosities eta and zeta into a new separate
117         routine (because I need to recompute them in seaice_ocean_stress.F)
118    
119    checkpoint58b_post
120    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
121      update output.txt of exp. aim.5l_cs.thSI
122    o various mnc cleanups and improvements:
123      + shrink lookup tables by factor of ~4
124      + better error reporting when running out of lookup space
125      + able to handle longer path/file names (up to 500 chars)
126    o adjoint:
127      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
128      - TBD: "hidden" mom_vecinv recomp. in dynamics
129    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
130     (allow to differentiate between forcing components using new integer flags:
131      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
132     and add new flag to put Dissipation tendency out of Adams-Bashforth.
133    o ecco
134      - enable trend removal from SSH anomaly obs.
135    o adjoint
136      - a fix for PmEpR when #undef EXACT_CONSERV
137      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
138      - try to fix "hidden" recomp. in forward_step for NLFS
139        (NLFS seems broken sometimes after I checked it in)
140    o seaice:
141     - add c-grid version of the dynamic solver:
142       + three new routines that are the c-grid substitute lsr, dynsolver
143         and ostres
144       + put a few fields that were local to dynsolver into global common
145         blocks, so that I can move the computation of stresses etc into
146         seaice_lsr (saves coding but may break the adjoint).
147     - replace more hardwired parameters by runtime parameters
148     - add ice masks that mask the rhs of the implicit solvers where there
149       is no ice (commented out in seaice_dynsolver, because i am not sure
150       if this works properly), eventually this should replace the clipping
151       of ice velocities in seaice_dynsolver to +/-40cm/s.
152    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
153      include it only where its needed
154    o move balancing of fluxes before the call of external_forcing_surf
155    o seaice:
156      - correct units of turning angles (now they are really in degrees)
157      - move computation of GWATX/Y out of main routine into dynsolver
158      - initialize GWATX/Y in seaice_init
159    o Apply mask on Fresh-Water flux (needed for SSH forcing).
160      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
161    o seaice: add runtime flags for turning angles (default to zero)
162    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
163      and trend from exf forcing and ctrl control adjustments
164    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
165      (since checkpoint57x_post)
166    o change the default rotation period to 86164.s = the Earth rotation
167    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
168      and based on a reference stratification. Tested within hs94.cs-32x32x5.
169    o seaice advection: add code for choosing between the default (2nd order
170      central differences) and multiDim advection schemes provided by
171      pkg/generic_advdiff
172    o seaice:
173      - removed all references to SEAICE_GRID.h fields from
174        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
175        (cubed-sphere configuration will change a little)
176      - grid computations in seaice_init are obsolete now.
177      - cleaned up code a little so that is easier to read (hopefully).
178      - added new (better?) discretizations of default advection and diffusion
179        (turn on with SEAICEuseFluxForm)
180      - replace 1 in 3d global fields by kSurface in growth.F
181      
182    checkpoint58a_post
183    o seaice:
184      - bug fix in advect.F
185    o shelfice:
186      - separate shelfice load anomaly from pload (breaks with time
187        dependent forcing), => introduce constant field shelficeLoadAnomaly.
188        Its default is 0., but it may be computed more cleverly from (unknown)
189        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
190        done offline. A good approximation of the pressure load anomaly is
191        necessary to avoid large initial adjustment processes underneath
192        deep-reaching shelfice.
193      - small fix in ISOMIP shelfice_thermodynamics
194      - add more sophisticated thermodynamics of Hellmer (1989), this is
195        now the default
196      - give a few constants more intuitive names
197    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
198      if bulk formulae are used in long integration (especially EmPmR). Turn
199      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
200      if balancePrintMean, the imbalance that is substracted is printed to
201      STDOUT.
202    o fix bug (typo) in obcs_apply_eta.F
203    o add a new package shelfice which enables us to model the circulation
204      underneath shelf-ice with draughts of hundreds of meters.
205     - works
206     - to do: + include improved thermodynamics
207              + check whether kSurfC (from model/inc/SURFACE.h) can be used
208                instead of new field kTopC
209              + can we use topoFile, Ro_surf and existing code in ini_depth.F
210                instead of new field R_shelfIce and new code in ini_depth.F
211                and ini_mask_etc.F?
212              + adjust vertical mixing schemes?
213    o seaice pkg:
214     - add a cpp-flag to include a simple formula for a salinity dependent
215       freezing point of sea water at the surface
216     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
217       meridional stresses are now different (and hopefully correct)
218    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
219       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
220       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
221    o pkg/diagnostics: add options and parameters for regional-statistics
222       diagnostics ; define regions by reading a region-mask from a file
223       (might add other options later)
224    o pkg/bulk_force:
225     - add option and parameters to use AIM surface-flux formulae.
226     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
227       others forcing fields (defined in PARM05, parameter file "data") are loaded
228       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
229     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
230     - use the right EXCH call for uwind,vwind (to work on CS-grid).
231     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
232       and parameters (note: calcWindStress replaces .NOT.readwindstress).
233     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
234    
235    checkpoint58
236    o add "--embed-source" option to genmake2 which, when the supporting
237      tools can be compiled (as determined by genmake2) will turn on the
238      embed_files package which then embeds the entire MITgcm source code
239      (*.[fFhc] + Makefile) used for the build within the executable
240      - requested by CNH but off by default
241      - adds a paltry <9MB to the mitgcmuv executable in most cases
242      - only writes the output when useEMBEDSRC in eedata is true
243    o clean up 3-dim. relaxation codes:
244      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
245      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
246      * Thanks to Tom Haine for testing!
247    
248    checkpoint57z_post
249    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
250      affects output (@ truncation level) of exp. plume_on_slope ; updated.
251    o fix the pickup behavior for obcs in combination with ptracers
252    o fix a bug in ptracers_external_fields_load
253    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
254      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
255    o transfered surface NH pressure to eta field (if exactConserv).
256    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
257         and update lab_sea output.txt file.
258    o completing 3-dim. relaxation code: additional term
259         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
260      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
261      * At compile time, in "EXF_OPTIONS.h" set
262          #define  ALLOW_CLIMTEMP_RELAXATION
263          #define  ALLOW_CLIMSALT_RELAXATION
264      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
265          tauThetaClimRelax3Dim = 15552000.0,
266          tauSaltClimRelax3Dim  = 15552000.0,
267      * 3 cases:
268          1) Use a constant-in-time 3-dim. field
269          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
270          3) Real-time relax. to time-evolving prescribed field
271    o Adding Laplacian-type smoothness constraint on
272      initial and boundary (forcing) controls (ic, bc)
273      * enable at compile-time via
274        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
275      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
276      * Absolute scale somewhat unclear so far
277      * no area weighting was included since no other cost term does so far
278    
279    checkpoint57y_post
280    First step for a NLFS adjoint
281    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
282    o new init. routines for calc_r_star, calc_surf_dr
283    o still need to deal with ini_masks_etc
284    o testreport seemed happy
285    checkpoint57y_pre
286    
287    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
288    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
289    o add new offset feature to offline pkg (plus minor cleanup)
290    o cfc fixes for final year of integration
291    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
292      be in GCHEM_OPTIONS).
293    
294    checkpoint57x_post
295    o fix testreport Pb in multiple test experiment.
296    o cleanup our namelist syntax in verification:
297      - make it more F95 standards compliant (some work still needed)
298      - allows the vast majority of our tests to work with gfortran
299    o Non-Hydrostatic:
300     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
301     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
302    o Allow to apply AB on T,S rather than on AB(gT,gS):
303     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
304     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
305       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
306     - need a "clever" read_pickup to restart from the other AB formulation
307    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
308    o remove some unused variables (reduces number of compiler warnings)
309    o adjoint
310      * Disable useVariableViscosity for adjoint for time being
311        (there are a number of extensive recomputations)
312      * Initialize certain variables needed for adjoint
313    
314    checkpoint57w_post
315    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
316                 fix the singleCpuIO RS version of MDSWRITEFIELD
317       and add a WARNING if using globalFiles=T with multi-processors.
318    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
319      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
320    o tracer advection scheme:
321      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
322       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
323       was not very convenient).
324      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
325       (further tests needed for the implicit DST & Flux-Limiter schemes).
326    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
327      and sRef for convenience, handy, when you want to initialize
328      ptracers in a large domain with a constant non-zero value. Also,
329      untangle ptracers_init.F a little.
330    
331    checkpoint57v_post
332    o change dome exp. to use variable viscosity in side-drag terms.
333    o remove all the files from the cfc_offline test since they are now
334      incorporated into tutorial_cfc_offline which has been producing
335      identical results for a few days of testing
336    o add new parameter: sideDragFactor to enable half-slip-side BC
337      and change side-drag S/R to use viscosity from mom_calc_visc
338      (can switch back by setting sideDragFactor=0.); affects results at
339      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
340       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
341    o vorticity & strain are now computed without masking, to account for
342      no-slip-side BC in variable viscosity calculation ; mask is applied
343      anyway later on, before computing advection/coriolis terms.
344    o modify exp4 to test new obcs support for reading from external files
345      and for passive tracers
346    o fix behavior of ptracers_monitor when monitor output is written to a
347      netcdf-file; still not independent of monitor.F (writes in the same
348      file).
349    o change default value of tRef (put a uniform, meaningful value for ocean
350      & atmos) and initialize sRef (was missing, as Martin mentioned).
351    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
352      to be proportional to enstrophy dissipation length.  Thus,
353       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
354      This is now consistent with Smagorinsky and with the manual.
355    
356    checkpoint57u_post
357    o OBCS and PTRACERS: add open boundary support for passive tracers
358      - either use homogenous (pseudo) v.Neumann conditions or prescribe
359        OB-values from file; this is not different from the way theta and salinity
360        are treated
361      - however, Orlanski-radiation conditions are not supported, and the model
362        will stop if you use pTracers and Orlanski at the same time.
363      - beefed up the rountine obcs_external_fields_load: now only those open
364        boundary values are overwritten with values from files for which there
365        are really files, otherwise the OB-fields remain untouched. This makes
366        it possible to use different OBs at different ends of the domain (as
367        with EXF)
368    o reduce number of exch calls in shap_filt (s2).
369    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
370      truncation level) 4/5 MLAdjust test results (11&12 digits match).
371    
372    checkpoint57t_post
373    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
374    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
375      same truncation, independent of the face number: affects affects several
376      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
377    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
378      note that biharmonic viscosity + no-slip was not tested in any experiment.
379    o fix bug in non-linear free-surf side-drag ; generate new output for
380      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
381    o make mnc honor the writeBinaryPrec flag for most kinds of output
382  o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum  o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
383  o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation  o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
384    error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).    error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).

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