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revision 1.455 by edhill, Sun Feb 20 04:31:54 2005 UTC revision 1.574 by jmc, Sat Oct 22 22:42:07 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o tracer advection scheme:
8      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
9       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
10       was not very convenient).
11      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
12       (further tests needed for the implicit DST & Flux-Limiter schemes).
13    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
14      and sRef for convenience, handy, when you want to initialize
15      ptracers in a large domain with a constant non-zero value. Also,
16      untangle ptracers_init.F a little.
17    
18    checkpoint57v_post
19    o change dome exp. to use variable viscosity in side-drag terms.
20    o remove all the files from the cfc_offline test since they are now
21      incorporated into tutorial_cfc_offline which has been producing
22      identical results for a few days of testing
23    o add new parameter: sideDragFactor to enable half-slip-side BC
24      and change side-drag S/R to use viscosity from mom_calc_visc
25      (can switch back by setting sideDragFactor=0.); affects results at
26      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
27       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
28    o vorticity & strain are now computed without masking, to account for
29      no-slip-side BC in variable viscosity calculation ; mask is applied
30      anyway later on, before computing advection/coriolis terms.
31    o modify exp4 to test new obcs support for reading from external files
32      and for passive tracers
33    o fix behavior of ptracers_monitor when monitor output is written to a
34      netcdf-file; still not independent of monitor.F (writes in the same
35      file).
36    o change default value of tRef (put a uniform, meaningful value for ocean
37      & atmos) and initialize sRef (was missing, as Martin mentioned).
38    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
39      to be proportional to enstrophy dissipation length.  Thus,
40       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
41      This is now consistent with Smagorinsky and with the manual.
42    
43    checkpoint57u_post
44    o OBCS and PTRACERS: add open boundary support for passive tracers
45      - either use homogenous (pseudo) v.Neumann conditions or prescribe
46        OB-values from file; this is not different from the way theta and salinity
47        are treated
48      - however, Orlanski-radiation conditions are not supported, and the model
49        will stop if you use pTracers and Orlanski at the same time.
50      - beefed up the rountine obcs_external_fields_load: now only those open
51        boundary values are overwritten with values from files for which there
52        are really files, otherwise the OB-fields remain untouched. This makes
53        it possible to use different OBs at different ends of the domain (as
54        with EXF)
55    o reduce number of exch calls in shap_filt (s2).
56    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
57      truncation level) 4/5 MLAdjust test results (11&12 digits match).
58    
59    checkpoint57t_post
60    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
61    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
62      same truncation, independent of the face number: affects affects several
63      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
64    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
65      note that biharmonic viscosity + no-slip was not tested in any experiment.
66    o fix bug in non-linear free-surf side-drag ; generate new output for
67      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
68    o make mnc honor the writeBinaryPrec flag for most kinds of output
69    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
70    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
71      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
72    o add brackets in multi-terms sum to get same truncation, independent of
73      the face number (manage to get exactly same value of gU,gV at the cs-edge)
74      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
75    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
76      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
77      a maximum grid-scale Reynolds number.  Also, changes all length calculations
78      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
79      Suggested values of viscosity parameters found in mom_calc_visc.
80      Many new viscosity diagnostics available.
81    
82    checkpoint57s_post
83    o Add clearing-house for viscosity calculations, mom_calc_visc and
84      correct numerous bugs in LeithD and Smagorinsky discretizations.  
85      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
86      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
87      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
88      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
89      The Strain-Tension form is now called with useStrainTensonVisc=.true.
90      ViscAhStrain and viscAhTension are now retired.
91    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
92    o In response to JMC's bug report, genmake2 now ignores any soft-links
93      that it finds in the *current* directory when searching for files.
94      Soft-links found in any other source directories will still work as
95      they did before.
96    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
97      a C routine to unlimit the stack size
98    o mnc-ify pkg/aim snapshot vars
99    o mnc-ify pkg/land as requested by Daniel
100    o various changes to mnc including:
101      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
102      - output can now be grouped so that all files within a group
103          change the ITER portion of their names in lock-step together
104      - can now read ("global") PER-FACE (in addition to PER-TILE) files
105          and works with both EXCH1 and EXCH2 (but needs more testing)
106      - writing works for all verification test cases w/ g77 on Linux
107    
108    checkpoint57r_post
109    o make MNC variable initialization happen earlier
110    o add diagnostics for (almost) each term of the momentum Eq.
111    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
112    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
113    o remove MINIMAL_TAVE_OUTPUT option ;
114      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
115    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
116      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
117    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
118    o add time-dependent SST, SSS control
119    o cost terms in ecco/ modularized (new cost_generic.F)
120    o cost_averages routines are modularized (new cost_averagesgeneric.F)
121    o new infrastructure for seaice model vs. obs misfits in seaice/
122      * driver from the_main_loop.F is seaice_cost_driver.F
123      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
124      * gradient check in Exp. 6a of natl_box_adjoint/
125    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
126      (see README file)
127    
128    checkpoint57q_post
129    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
130    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
131      - bug was reported by Jean-Michel and Ian Fenty
132    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
133      update exp. cpl_aim+ocn output.
134    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
135      Needed for high-res. runs with large global files
136      to be able to limit tapelev size
137    o Changed some tests for adjoint:
138      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
139      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
140      * global_ocean.90x40x15/ back to default 3-level checkpointing
141    o Modifications to enable scripted COMMON to MODULE conversion
142      * verification/OpenAD/code/ has necessary scripts and description;
143      * converts, compiles and runs successfully;
144    
145    checkpoint57p_post
146    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
147    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
148      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
149    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
150    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
151      (was already the case for dissipation with mom_vecinv,
152       and also the case for grad.PhiHyd when staggered-timeStep)
153      This will allow to put dissipation out-off the AB time-stepping.
154     Unfortunately, affects truncation error. Update output of exp. that "fails"
155      (cg2d matching number) and leave the others for later: front_relax(10),
156      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
157      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
158    
159    checkpoint57o_post
160    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
161      (2) its ready to be documented during the 20050801 DocFest
162    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
163      for ideal_2D_oce and lab_sea on linux_ia32_g77
164    o set to #undef CTRL_SET_OLD_MAXCVARS_30
165      in global1x1_tot/code_seaice_adj to access indices 32, 33
166      (worth another tag)
167    
168    checkpoint57n_post
169    o adding precip control xx_precip 32
170    o adding swflux control xx_swflux 33
171    o Replacing 10 forcing penalty cost routines by 1 generic.
172    o Implementing partitioning in time-mean and variable adjustment
173      for atmos. state.
174    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
175    o in natl_box_adjoint:
176      * updated exp 1 to 10
177        (but does not have time-mean vs. variable split results yet)
178    o updated global1x1/*_seaice_adj/
179      to incorporate latest changes
180    o enable useSingleCpuIO for mdsio vector routines
181      (applies in particular to tapelev I/O)
182    o removed inefficient K-loop in all active_file*control*.F
183    
184    checkpoint57m_post
185    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
186      and advect_cs (use EXCH-2 and standard cs-32 grid files).
187    o pkg/exch2: filling of face-corner halo regions is optional
188      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
189    
190    checkpoint57l_post
191     tag before updating tutorials (pre-release-2)
192    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
193       for output and interpolation of input fields onto model grid)
194    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
195       Affects results of exp. rotating_tank ; update output.txt.
196    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
197          and taking the square quantity and/or using a fraction-weight field.
198    o fix aim_diagnostics_init.F mate numbers.
199    o add mnc output capability to diagnostics/diagstat and update
200      our cvsignore files for the ACSII output generated
201    
202    checkpoint57k_post
203    o lab_sea now uses diagnostics package and provides a suite of
204      new EXF diagnostics output.
205    
206    checkpoint57j_post
207    o exf
208      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
209        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
210        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
211      * extended diagnostics output
212        - now includes all EXF variables
213        - hs, hl moved to common block
214        - separate S/R for diagnostics, called after ctrl vector is added
215        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
216        - EXFqnet contains true Qnet (i.e. includes qsw)
217      * updated verif. lab_sea, global_with_exf
218      * Rearranging hflux (exf_mapfields -> exf_getforcing)
219        to ensure that diagnostics sees a true EXFqnet
220    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
221    o diagnostics pkg: change pointers so that 1 diagnostic can be used
222      several times with different frequencies.
223    o mnc-ify the thsice package as requested by Daniel Enderton
224      - the monitor--MNC output needs work
225      - many attributes need to be added (most are currently blank)
226    o mnc-ify theaim_v23 package as requested by Daniel Enderton
227      - many attributes need to be added (most are currently blank)
228    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
229    o add Sadourny like discretization to the 4th.O vorticity advection scheme
230    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
231      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
232         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
233    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
234     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
235    
236    checkpoint57i_post
237    o Diagnostics package was changed: diagnostic allocation is now deactivated
238      by setting an empty file name in the namelist (used to be by setting 0 frequency)
239    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
240      add 1rst Order upwind vertical Shear.
241    o add a quick fix for A/B checkpointing in OFFLINE mode
242    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
243      end-run around the C/Fortran linking horror in eesup/src/timers.F
244    o added pkg/runclock: allows user to terminate run based on wall clock
245    o added non-hydrostatic scaling parameter: nh_am2
246    o pkg/my82: futile attempt to make results compiler-independent by adding
247      some "_d 0", etc. no effect.
248    o for mnc output, fill the 'T' coordinate var with myTime and create a
249      separate 'iter' variable for iteration count
250    o pkg/diagnostics:
251      add new capability: output of Global/Regional & per-level statistics ;
252      tested against monitor output (including land & thSIce) on various exp.
253    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
254    
255    checkpoint57h_done
256      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
257      data.diagnostics, data.gchem, data.ptracers) is done.
258    
259    o pkg/diagnostics: prepare for Global/Regional statistics.
260      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
261    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
262      and rename it: DIFFERENT_MULTIPLE
263    
264    checkpoint57h_post
265    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
266    o pkg/diagnostics: change output frequency, now in seconds (instead
267      of Nb of iterations). This requires to change data.diagnostics.
268    checkpoint57h_pre
269    
270    o in mnc, let the user create the output dir if both mnc_outdir_date
271      and mnc_outdir_num are false
272    o add fflags() to pkg/diagnostics which allows one to specify, on a
273      per-file basis, the file precision [default behavior is unchanged]
274    o added diagnostics to pkg/kpp, including computation of mixed layer
275      depth based on a temperature/density criterion
276    o updated verification/natl_box to test the new pkg/kpp diagnostics
277    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
278    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
279    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
280      not mnc -- this mistake was found by JMC and is now corrected
281    
282    checkpoint57g_post
283    o add Adams-Bashforth 3rd Order time stepping:
284      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
285      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
286    checkpoint57g_pre
287    
288    o make lambda[Theta,Salt]ClimRelax spatially varying
289      (default remains spatially uniform constant based on tau)
290    o added new control variables
291      * init. uVel, vVel, etanN
292      * lambda[Theta,Salt]ClimRelax
293    o separate masks used for ctrl_pack/unpack 'from write_grid' output
294      (suggested by G. Forget)
295    
296    checkpoint57f_post
297    o add parameter "baseTime" = model base time = time at iteration zero
298      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
299      account for baseTime shift
300    o move Coriolis arrays from PARAMS.h to GRID.h
301    checkpoint57f_pre
302    
303    o mnc-ifying the seaice package
304    o introduced an alternative length scale calculation for use in the limiting
305      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
306    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
307    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
308      as well as grad(vort3).  Made it compatible with both approximate form
309      for the cubed sphere and full form of these gradients.  Added flag
310      useFullLeith to select between approximate and full form.  
311    o add "d0" in getcon.F to reduce differences between compilers/platforms
312      update output.txt of exp. fizhi-gridalt-hs
313    o change port_rand funtion to allow to set the seed.
314    o fix obscure MNC bug involving conversion between reals and integers
315      - it caused no problems with certain (eg. gcc, ifc) compilers but the
316        new version is now more standards-compliant
317    o adjoint-related modifications
318      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
319      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
320      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
321    
322    checkpoint57e_post
323    o Adding eddy stress controls a la Ferreira et al.
324    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
325    
326    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
327      update output.txt of exp. fizhi-gridalt-hs
328    o add more "Z" dimensions and associated coordinate vars to MNC
329    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
330    o parameter calendarDumps: when set, approximate months (30-31 days) and years
331      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
332      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
333      months and years.  Requires pkg/cal.
334  o diagnostics: add pickup functionality  o diagnostics: add pickup functionality
335    - off by default for backwards compatibility    - off by default for backwards compatibility
336    - current version only uses MDSIO -- MNC will be added    - current version only uses MDSIO -- MNC will be added

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