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revision 1.449 by jmc, Wed Feb 9 23:45:41 2005 UTC revision 1.573 by mlosch, Fri Oct 14 12:45:43 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 PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
8      and sRef for convenience, handy, when you want to initialize
9      ptracers in a large domain with a constant non-zero value. Also,
10      untangle ptracers_init.F a little.
11    
12    checkpoint57v_post
13    o change dome exp. to use variable viscosity in side-drag terms.
14    o remove all the files from the cfc_offline test since they are now
15      incorporated into tutorial_cfc_offline which has been producing
16      identical results for a few days of testing
17    o add new parameter: sideDragFactor to enable half-slip-side BC
18      and change side-drag S/R to use viscosity from mom_calc_visc
19      (can switch back by setting sideDragFactor=0.); affects results at
20      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
21       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
22    o vorticity & strain are now computed without masking, to account for
23      no-slip-side BC in variable viscosity calculation ; mask is applied
24      anyway later on, before computing advection/coriolis terms.
25    o modify exp4 to test new obcs support for reading from external files
26      and for passive tracers
27    o fix behavior of ptracers_monitor when monitor output is written to a
28      netcdf-file; still not independent of monitor.F (writes in the same
29      file).
30    o change default value of tRef (put a uniform, meaningful value for ocean
31      & atmos) and initialize sRef (was missing, as Martin mentioned).
32    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
33      to be proportional to enstrophy dissipation length.  Thus,
34       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
35      This is now consistent with Smagorinsky and with the manual.
36    
37    checkpoint57u_post
38    o OBCS and PTRACERS: add open boundary support for passive tracers
39      - either use homogenous (pseudo) v.Neumann conditions or prescribe
40        OB-values from file; this is not different from the way theta and salinity
41        are treated
42      - however, Orlanski-radiation conditions are not supported, and the model
43        will stop if you use pTracers and Orlanski at the same time.
44      - beefed up the rountine obcs_external_fields_load: now only those open
45        boundary values are overwritten with values from files for which there
46        are really files, otherwise the OB-fields remain untouched. This makes
47        it possible to use different OBs at different ends of the domain (as
48        with EXF)
49    o reduce number of exch calls in shap_filt (s2).
50    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
51      truncation level) 4/5 MLAdjust test results (11&12 digits match).
52    
53    checkpoint57t_post
54    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
55    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
56      same truncation, independent of the face number: affects affects several
57      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
58    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
59      note that biharmonic viscosity + no-slip was not tested in any experiment.
60    o fix bug in non-linear free-surf side-drag ; generate new output for
61      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
62    o make mnc honor the writeBinaryPrec flag for most kinds of output
63    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
64    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
65      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
66    o add brackets in multi-terms sum to get same truncation, independent of
67      the face number (manage to get exactly same value of gU,gV at the cs-edge)
68      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
69    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
70      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
71      a maximum grid-scale Reynolds number.  Also, changes all length calculations
72      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
73      Suggested values of viscosity parameters found in mom_calc_visc.
74      Many new viscosity diagnostics available.
75    
76    checkpoint57s_post
77    o Add clearing-house for viscosity calculations, mom_calc_visc and
78      correct numerous bugs in LeithD and Smagorinsky discretizations.  
79      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
80      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
81      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
82      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
83      The Strain-Tension form is now called with useStrainTensonVisc=.true.
84      ViscAhStrain and viscAhTension are now retired.
85    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
86    o In response to JMC's bug report, genmake2 now ignores any soft-links
87      that it finds in the *current* directory when searching for files.
88      Soft-links found in any other source directories will still work as
89      they did before.
90    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
91      a C routine to unlimit the stack size
92    o mnc-ify pkg/aim snapshot vars
93    o mnc-ify pkg/land as requested by Daniel
94    o various changes to mnc including:
95      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
96      - output can now be grouped so that all files within a group
97          change the ITER portion of their names in lock-step together
98      - can now read ("global") PER-FACE (in addition to PER-TILE) files
99          and works with both EXCH1 and EXCH2 (but needs more testing)
100      - writing works for all verification test cases w/ g77 on Linux
101    
102    checkpoint57r_post
103    o make MNC variable initialization happen earlier
104    o add diagnostics for (almost) each term of the momentum Eq.
105    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
106    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
107    o remove MINIMAL_TAVE_OUTPUT option ;
108      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
109    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
110      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
111    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
112    o add time-dependent SST, SSS control
113    o cost terms in ecco/ modularized (new cost_generic.F)
114    o cost_averages routines are modularized (new cost_averagesgeneric.F)
115    o new infrastructure for seaice model vs. obs misfits in seaice/
116      * driver from the_main_loop.F is seaice_cost_driver.F
117      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
118      * gradient check in Exp. 6a of natl_box_adjoint/
119    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
120      (see README file)
121    
122    checkpoint57q_post
123    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
124    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
125      - bug was reported by Jean-Michel and Ian Fenty
126    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
127      update exp. cpl_aim+ocn output.
128    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
129      Needed for high-res. runs with large global files
130      to be able to limit tapelev size
131    o Changed some tests for adjoint:
132      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
133      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
134      * global_ocean.90x40x15/ back to default 3-level checkpointing
135    o Modifications to enable scripted COMMON to MODULE conversion
136      * verification/OpenAD/code/ has necessary scripts and description;
137      * converts, compiles and runs successfully;
138    
139    checkpoint57p_post
140    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
141    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
142      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
143    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
144    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
145      (was already the case for dissipation with mom_vecinv,
146       and also the case for grad.PhiHyd when staggered-timeStep)
147      This will allow to put dissipation out-off the AB time-stepping.
148     Unfortunately, affects truncation error. Update output of exp. that "fails"
149      (cg2d matching number) and leave the others for later: front_relax(10),
150      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
151      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
152    
153    checkpoint57o_post
154    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
155      (2) its ready to be documented during the 20050801 DocFest
156    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
157      for ideal_2D_oce and lab_sea on linux_ia32_g77
158    o set to #undef CTRL_SET_OLD_MAXCVARS_30
159      in global1x1_tot/code_seaice_adj to access indices 32, 33
160      (worth another tag)
161    
162    checkpoint57n_post
163    o adding precip control xx_precip 32
164    o adding swflux control xx_swflux 33
165    o Replacing 10 forcing penalty cost routines by 1 generic.
166    o Implementing partitioning in time-mean and variable adjustment
167      for atmos. state.
168    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
169    o in natl_box_adjoint:
170      * updated exp 1 to 10
171        (but does not have time-mean vs. variable split results yet)
172    o updated global1x1/*_seaice_adj/
173      to incorporate latest changes
174    o enable useSingleCpuIO for mdsio vector routines
175      (applies in particular to tapelev I/O)
176    o removed inefficient K-loop in all active_file*control*.F
177    
178    checkpoint57m_post
179    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
180      and advect_cs (use EXCH-2 and standard cs-32 grid files).
181    o pkg/exch2: filling of face-corner halo regions is optional
182      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
183    
184    checkpoint57l_post
185     tag before updating tutorials (pre-release-2)
186    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
187       for output and interpolation of input fields onto model grid)
188    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
189       Affects results of exp. rotating_tank ; update output.txt.
190    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
191          and taking the square quantity and/or using a fraction-weight field.
192    o fix aim_diagnostics_init.F mate numbers.
193    o add mnc output capability to diagnostics/diagstat and update
194      our cvsignore files for the ACSII output generated
195    
196    checkpoint57k_post
197    o lab_sea now uses diagnostics package and provides a suite of
198      new EXF diagnostics output.
199    
200    checkpoint57j_post
201    o exf
202      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
203        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
204        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
205      * extended diagnostics output
206        - now includes all EXF variables
207        - hs, hl moved to common block
208        - separate S/R for diagnostics, called after ctrl vector is added
209        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
210        - EXFqnet contains true Qnet (i.e. includes qsw)
211      * updated verif. lab_sea, global_with_exf
212      * Rearranging hflux (exf_mapfields -> exf_getforcing)
213        to ensure that diagnostics sees a true EXFqnet
214    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
215    o diagnostics pkg: change pointers so that 1 diagnostic can be used
216      several times with different frequencies.
217    o mnc-ify the thsice package as requested by Daniel Enderton
218      - the monitor--MNC output needs work
219      - many attributes need to be added (most are currently blank)
220    o mnc-ify theaim_v23 package as requested by Daniel Enderton
221      - many attributes need to be added (most are currently blank)
222    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
223    o add Sadourny like discretization to the 4th.O vorticity advection scheme
224    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
225      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
226         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
227    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
228     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
229    
230    checkpoint57i_post
231    o Diagnostics package was changed: diagnostic allocation is now deactivated
232      by setting an empty file name in the namelist (used to be by setting 0 frequency)
233    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
234      add 1rst Order upwind vertical Shear.
235    o add a quick fix for A/B checkpointing in OFFLINE mode
236    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
237      end-run around the C/Fortran linking horror in eesup/src/timers.F
238    o added pkg/runclock: allows user to terminate run based on wall clock
239    o added non-hydrostatic scaling parameter: nh_am2
240    o pkg/my82: futile attempt to make results compiler-independent by adding
241      some "_d 0", etc. no effect.
242    o for mnc output, fill the 'T' coordinate var with myTime and create a
243      separate 'iter' variable for iteration count
244    o pkg/diagnostics:
245      add new capability: output of Global/Regional & per-level statistics ;
246      tested against monitor output (including land & thSIce) on various exp.
247    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
248    
249    checkpoint57h_done
250      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
251      data.diagnostics, data.gchem, data.ptracers) is done.
252    
253    o pkg/diagnostics: prepare for Global/Regional statistics.
254      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
255    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
256      and rename it: DIFFERENT_MULTIPLE
257    
258    checkpoint57h_post
259    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
260    o pkg/diagnostics: change output frequency, now in seconds (instead
261      of Nb of iterations). This requires to change data.diagnostics.
262    checkpoint57h_pre
263    
264    o in mnc, let the user create the output dir if both mnc_outdir_date
265      and mnc_outdir_num are false
266    o add fflags() to pkg/diagnostics which allows one to specify, on a
267      per-file basis, the file precision [default behavior is unchanged]
268    o added diagnostics to pkg/kpp, including computation of mixed layer
269      depth based on a temperature/density criterion
270    o updated verification/natl_box to test the new pkg/kpp diagnostics
271    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
272    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
273    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
274      not mnc -- this mistake was found by JMC and is now corrected
275    
276    checkpoint57g_post
277    o add Adams-Bashforth 3rd Order time stepping:
278      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
279      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
280    checkpoint57g_pre
281    
282    o make lambda[Theta,Salt]ClimRelax spatially varying
283      (default remains spatially uniform constant based on tau)
284    o added new control variables
285      * init. uVel, vVel, etanN
286      * lambda[Theta,Salt]ClimRelax
287    o separate masks used for ctrl_pack/unpack 'from write_grid' output
288      (suggested by G. Forget)
289    
290    checkpoint57f_post
291    o add parameter "baseTime" = model base time = time at iteration zero
292      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
293      account for baseTime shift
294    o move Coriolis arrays from PARAMS.h to GRID.h
295    checkpoint57f_pre
296    
297    o mnc-ifying the seaice package
298    o introduced an alternative length scale calculation for use in the limiting
299      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
300    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
301    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
302      as well as grad(vort3).  Made it compatible with both approximate form
303      for the cubed sphere and full form of these gradients.  Added flag
304      useFullLeith to select between approximate and full form.  
305    o add "d0" in getcon.F to reduce differences between compilers/platforms
306      update output.txt of exp. fizhi-gridalt-hs
307    o change port_rand funtion to allow to set the seed.
308    o fix obscure MNC bug involving conversion between reals and integers
309      - it caused no problems with certain (eg. gcc, ifc) compilers but the
310        new version is now more standards-compliant
311    o adjoint-related modifications
312      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
313      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
314      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
315    
316    checkpoint57e_post
317    o Adding eddy stress controls a la Ferreira et al.
318    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
319    
320    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
321      update output.txt of exp. fizhi-gridalt-hs
322    o add more "Z" dimensions and associated coordinate vars to MNC
323    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
324    o parameter calendarDumps: when set, approximate months (30-31 days) and years
325      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
326      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
327      months and years.  Requires pkg/cal.
328    o diagnostics: add pickup functionality
329      - off by default for backwards compatibility
330      - current version only uses MDSIO -- MNC will be added
331    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
332    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
333    
334    checkpoint57d_post
335    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
336    o modify verification/ideal_2D_oce so that it tests the creation of mnc
337      output from the diagnostics package
338  o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up  o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
339  o make genmake2 more portable by using ".$FS" instead of ".f" for more  o make genmake2 more portable by using ".$FS" instead of ".f" for more
340    of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)    of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)

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