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revision 1.525 by edhill, Sat Jul 30 00:58:40 2005 UTC revision 1.569 by jmc, Wed Oct 12 02:13:40 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 vorticity & strain are now computed without masking, to account for
8      no-slip-side BC in variable viscosity calculation ; mask is applied
9      anyway later on, before computing advection/coriolis terms.
10    o modify exp4 to test new obcs support reading from external files
11      and for passive tracers
12    o fix behavior of ptracers_monitor when monitor output is written to a
13      netcdf-file; still not independent of monitor.F (writes in the same
14      file).
15    o change default value of tRef (put a uniform, meaningful value for ocean
16      & atmos) and initialize sRef (was missing, as Martin mentioned).
17    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
18      to be proportional to enstrophy dissipation length.  Thus,
19       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
20      This is now consistent with Smagorinsky and with the manual.
21    
22    checkpoint57u_post
23    o OBCS and PTRACERS: add open boundary support for passive tracers
24      - either use homogenous (pseudo) v.Neumann conditions or prescribe
25        OB-values from file; this is not different from the way theta and salinity
26        are treated
27      - however, Orlanski-radiation conditions are not supported, and the model
28        will stop if you use pTracers and Orlanski at the same time.
29      - beefed up the rountine obcs_external_fields_load: now only those open
30        boundary values are overwritten with values from files for which there
31        are really files, otherwise the OB-fields remain untouched. This makes
32        it possible to use different OBs at different ends of the domain (as
33        with EXF)
34    o reduce number of exch calls in shap_filt (s2).
35    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
36      truncation level) 4/5 MLAdjust test results (11&12 digits match).
37    
38    checkpoint57t_post
39    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
40    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
41      same truncation, independent of the face number: affects affects several
42      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
43    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
44      note that biharmonic viscosity + no-slip was not tested in any experiment.
45    o fix bug in non-linear free-surf side-drag ; generate new output for
46      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
47    o make mnc honor the writeBinaryPrec flag for most kinds of output
48    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
49    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
50      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
51    o add brackets in multi-terms sum to get same truncation, independent of
52      the face number (manage to get exactly same value of gU,gV at the cs-edge)
53      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
54    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
55      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
56      a maximum grid-scale Reynolds number.  Also, changes all length calculations
57      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
58      Suggested values of viscosity parameters found in mom_calc_visc.
59      Many new viscosity diagnostics available.
60    
61    checkpoint57s_post
62    o Add clearing-house for viscosity calculations, mom_calc_visc and
63      correct numerous bugs in LeithD and Smagorinsky discretizations.  
64      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
65      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
66      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
67      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
68      The Strain-Tension form is now called with useStrainTensonVisc=.true.
69      ViscAhStrain and viscAhTension are now retired.
70    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
71    o In response to JMC's bug report, genmake2 now ignores any soft-links
72      that it finds in the *current* directory when searching for files.
73      Soft-links found in any other source directories will still work as
74      they did before.
75    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
76      a C routine to unlimit the stack size
77    o mnc-ify pkg/aim snapshot vars
78    o mnc-ify pkg/land as requested by Daniel
79    o various changes to mnc including:
80      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
81      - output can now be grouped so that all files within a group
82          change the ITER portion of their names in lock-step together
83      - can now read ("global") PER-FACE (in addition to PER-TILE) files
84          and works with both EXCH1 and EXCH2 (but needs more testing)
85      - writing works for all verification test cases w/ g77 on Linux
86    
87    checkpoint57r_post
88    o make MNC variable initialization happen earlier
89    o add diagnostics for (almost) each term of the momentum Eq.
90    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
91    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
92    o remove MINIMAL_TAVE_OUTPUT option ;
93      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
94    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
95      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
96    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
97    o add time-dependent SST, SSS control
98    o cost terms in ecco/ modularized (new cost_generic.F)
99    o cost_averages routines are modularized (new cost_averagesgeneric.F)
100    o new infrastructure for seaice model vs. obs misfits in seaice/
101      * driver from the_main_loop.F is seaice_cost_driver.F
102      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
103      * gradient check in Exp. 6a of natl_box_adjoint/
104    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
105      (see README file)
106    
107    checkpoint57q_post
108    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
109    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
110      - bug was reported by Jean-Michel and Ian Fenty
111    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
112      update exp. cpl_aim+ocn output.
113    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
114      Needed for high-res. runs with large global files
115      to be able to limit tapelev size
116    o Changed some tests for adjoint:
117      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
118      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
119      * global_ocean.90x40x15/ back to default 3-level checkpointing
120    o Modifications to enable scripted COMMON to MODULE conversion
121      * verification/OpenAD/code/ has necessary scripts and description;
122      * converts, compiles and runs successfully;
123    
124    checkpoint57p_post
125    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
126    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
127      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
128    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
129    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
130      (was already the case for dissipation with mom_vecinv,
131       and also the case for grad.PhiHyd when staggered-timeStep)
132      This will allow to put dissipation out-off the AB time-stepping.
133     Unfortunately, affects truncation error. Update output of exp. that "fails"
134      (cg2d matching number) and leave the others for later: front_relax(10),
135      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
136      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
137    
138    checkpoint57o_post
139  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
140    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest
141  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
142    for ideal_2D_oce and lab_sea on linux_ia32_g77    for ideal_2D_oce and lab_sea on linux_ia32_g77
143    o set to #undef CTRL_SET_OLD_MAXCVARS_30
144      in global1x1_tot/code_seaice_adj to access indices 32, 33
145      (worth another tag)
146    
147  checkpoint57n_post  checkpoint57n_post
148  o adding precip control xx_precip 32  o adding precip control xx_precip 32

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