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revision 1.525 by edhill, Sat Jul 30 00:58:40 2005 UTC revision 1.576 by jmc, Thu Nov 3 17:34:32 2005 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/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
8                 fix the singleCpuIO RS version of MDSWRITEFIELD
9       and add a WARNING if using globalFiles=T with multi-processors.
10    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
11      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
12    o tracer advection scheme:
13      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
14       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
15       was not very convenient).
16      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
17       (further tests needed for the implicit DST & Flux-Limiter schemes).
18    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
19      and sRef for convenience, handy, when you want to initialize
20      ptracers in a large domain with a constant non-zero value. Also,
21      untangle ptracers_init.F a little.
22    
23    checkpoint57v_post
24    o change dome exp. to use variable viscosity in side-drag terms.
25    o remove all the files from the cfc_offline test since they are now
26      incorporated into tutorial_cfc_offline which has been producing
27      identical results for a few days of testing
28    o add new parameter: sideDragFactor to enable half-slip-side BC
29      and change side-drag S/R to use viscosity from mom_calc_visc
30      (can switch back by setting sideDragFactor=0.); affects results at
31      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
32       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
33    o vorticity & strain are now computed without masking, to account for
34      no-slip-side BC in variable viscosity calculation ; mask is applied
35      anyway later on, before computing advection/coriolis terms.
36    o modify exp4 to test new obcs support for reading from external files
37      and for passive tracers
38    o fix behavior of ptracers_monitor when monitor output is written to a
39      netcdf-file; still not independent of monitor.F (writes in the same
40      file).
41    o change default value of tRef (put a uniform, meaningful value for ocean
42      & atmos) and initialize sRef (was missing, as Martin mentioned).
43    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
44      to be proportional to enstrophy dissipation length.  Thus,
45       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
46      This is now consistent with Smagorinsky and with the manual.
47    
48    checkpoint57u_post
49    o OBCS and PTRACERS: add open boundary support for passive tracers
50      - either use homogenous (pseudo) v.Neumann conditions or prescribe
51        OB-values from file; this is not different from the way theta and salinity
52        are treated
53      - however, Orlanski-radiation conditions are not supported, and the model
54        will stop if you use pTracers and Orlanski at the same time.
55      - beefed up the rountine obcs_external_fields_load: now only those open
56        boundary values are overwritten with values from files for which there
57        are really files, otherwise the OB-fields remain untouched. This makes
58        it possible to use different OBs at different ends of the domain (as
59        with EXF)
60    o reduce number of exch calls in shap_filt (s2).
61    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
62      truncation level) 4/5 MLAdjust test results (11&12 digits match).
63    
64    checkpoint57t_post
65    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
66    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
67      same truncation, independent of the face number: affects affects several
68      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
69    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
70      note that biharmonic viscosity + no-slip was not tested in any experiment.
71    o fix bug in non-linear free-surf side-drag ; generate new output for
72      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
73    o make mnc honor the writeBinaryPrec flag for most kinds of output
74    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
75    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
76      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
77    o add brackets in multi-terms sum to get same truncation, independent of
78      the face number (manage to get exactly same value of gU,gV at the cs-edge)
79      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
80    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
81      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
82      a maximum grid-scale Reynolds number.  Also, changes all length calculations
83      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
84      Suggested values of viscosity parameters found in mom_calc_visc.
85      Many new viscosity diagnostics available.
86    
87    checkpoint57s_post
88    o Add clearing-house for viscosity calculations, mom_calc_visc and
89      correct numerous bugs in LeithD and Smagorinsky discretizations.  
90      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
91      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
92      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
93      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
94      The Strain-Tension form is now called with useStrainTensonVisc=.true.
95      ViscAhStrain and viscAhTension are now retired.
96    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
97    o In response to JMC's bug report, genmake2 now ignores any soft-links
98      that it finds in the *current* directory when searching for files.
99      Soft-links found in any other source directories will still work as
100      they did before.
101    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
102      a C routine to unlimit the stack size
103    o mnc-ify pkg/aim snapshot vars
104    o mnc-ify pkg/land as requested by Daniel
105    o various changes to mnc including:
106      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
107      - output can now be grouped so that all files within a group
108          change the ITER portion of their names in lock-step together
109      - can now read ("global") PER-FACE (in addition to PER-TILE) files
110          and works with both EXCH1 and EXCH2 (but needs more testing)
111      - writing works for all verification test cases w/ g77 on Linux
112    
113    checkpoint57r_post
114    o make MNC variable initialization happen earlier
115    o add diagnostics for (almost) each term of the momentum Eq.
116    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
117    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
118    o remove MINIMAL_TAVE_OUTPUT option ;
119      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
120    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
121      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
122    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
123    o add time-dependent SST, SSS control
124    o cost terms in ecco/ modularized (new cost_generic.F)
125    o cost_averages routines are modularized (new cost_averagesgeneric.F)
126    o new infrastructure for seaice model vs. obs misfits in seaice/
127      * driver from the_main_loop.F is seaice_cost_driver.F
128      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
129      * gradient check in Exp. 6a of natl_box_adjoint/
130    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
131      (see README file)
132    
133    checkpoint57q_post
134    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
135    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
136      - bug was reported by Jean-Michel and Ian Fenty
137    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
138      update exp. cpl_aim+ocn output.
139    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
140      Needed for high-res. runs with large global files
141      to be able to limit tapelev size
142    o Changed some tests for adjoint:
143      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
144      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
145      * global_ocean.90x40x15/ back to default 3-level checkpointing
146    o Modifications to enable scripted COMMON to MODULE conversion
147      * verification/OpenAD/code/ has necessary scripts and description;
148      * converts, compiles and runs successfully;
149    
150    checkpoint57p_post
151    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
152    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
153      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
154    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
155    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
156      (was already the case for dissipation with mom_vecinv,
157       and also the case for grad.PhiHyd when staggered-timeStep)
158      This will allow to put dissipation out-off the AB time-stepping.
159     Unfortunately, affects truncation error. Update output of exp. that "fails"
160      (cg2d matching number) and leave the others for later: front_relax(10),
161      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
162      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
163    
164    checkpoint57o_post
165  o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and  o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
166    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest
167  o MNC-ify the gmredi package -- tested and works w/ and w/o mnc  o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
168    for ideal_2D_oce and lab_sea on linux_ia32_g77    for ideal_2D_oce and lab_sea on linux_ia32_g77
169    o set to #undef CTRL_SET_OLD_MAXCVARS_30
170      in global1x1_tot/code_seaice_adj to access indices 32, 33
171      (worth another tag)
172    
173  checkpoint57n_post  checkpoint57n_post
174  o adding precip control xx_precip 32  o adding precip control xx_precip 32

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