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revision 1.525 by edhill, Sat Jul 30 00:58:40 2005 UTC revision 1.586 by jmc, Thu Dec 8 15:09:31 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 obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
8    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
9    o add new offset feature to offline pkg (plus minor cleanup)
10    o cfc fixes for final year of integration
11    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
12      be in GCHEM_OPTIONS).
13    
14    checkpoint57x_post
15    o fix testreport Pb in multiple test experiment.
16    o cleanup our namelist syntax in verification:
17      - make it more F95 standards compliant (some work still needed)
18      - allows the vast majority of our tests to work with gfortran
19    o Non-Hydrostatic:
20     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
21     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
22    o Allow to apply AB on T,S rather than on AB(gT,gS):
23     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
24     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
25       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
26     - need a "clever" read_pickup to restart from the other AB formulation
27    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
28    o remove some unused variables (reduces number of compiler warnings)
29    o adjoint
30      * Disable useVariableViscosity for adjoint for time being
31        (there are a number of extensive recomputations)
32      * Initialize certain variables needed for adjoint
33    
34    checkpoint57w_post
35    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
36                 fix the singleCpuIO RS version of MDSWRITEFIELD
37       and add a WARNING if using globalFiles=T with multi-processors.
38    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
39      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
40    o tracer advection scheme:
41      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
42       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
43       was not very convenient).
44      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
45       (further tests needed for the implicit DST & Flux-Limiter schemes).
46    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
47      and sRef for convenience, handy, when you want to initialize
48      ptracers in a large domain with a constant non-zero value. Also,
49      untangle ptracers_init.F a little.
50    
51    checkpoint57v_post
52    o change dome exp. to use variable viscosity in side-drag terms.
53    o remove all the files from the cfc_offline test since they are now
54      incorporated into tutorial_cfc_offline which has been producing
55      identical results for a few days of testing
56    o add new parameter: sideDragFactor to enable half-slip-side BC
57      and change side-drag S/R to use viscosity from mom_calc_visc
58      (can switch back by setting sideDragFactor=0.); affects results at
59      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
60       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
61    o vorticity & strain are now computed without masking, to account for
62      no-slip-side BC in variable viscosity calculation ; mask is applied
63      anyway later on, before computing advection/coriolis terms.
64    o modify exp4 to test new obcs support for reading from external files
65      and for passive tracers
66    o fix behavior of ptracers_monitor when monitor output is written to a
67      netcdf-file; still not independent of monitor.F (writes in the same
68      file).
69    o change default value of tRef (put a uniform, meaningful value for ocean
70      & atmos) and initialize sRef (was missing, as Martin mentioned).
71    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
72      to be proportional to enstrophy dissipation length.  Thus,
73       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
74      This is now consistent with Smagorinsky and with the manual.
75    
76    checkpoint57u_post
77    o OBCS and PTRACERS: add open boundary support for passive tracers
78      - either use homogenous (pseudo) v.Neumann conditions or prescribe
79        OB-values from file; this is not different from the way theta and salinity
80        are treated
81      - however, Orlanski-radiation conditions are not supported, and the model
82        will stop if you use pTracers and Orlanski at the same time.
83      - beefed up the rountine obcs_external_fields_load: now only those open
84        boundary values are overwritten with values from files for which there
85        are really files, otherwise the OB-fields remain untouched. This makes
86        it possible to use different OBs at different ends of the domain (as
87        with EXF)
88    o reduce number of exch calls in shap_filt (s2).
89    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
90      truncation level) 4/5 MLAdjust test results (11&12 digits match).
91    
92    checkpoint57t_post
93    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
94    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
95      same truncation, independent of the face number: affects affects several
96      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
97    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
98      note that biharmonic viscosity + no-slip was not tested in any experiment.
99    o fix bug in non-linear free-surf side-drag ; generate new output for
100      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
101    o make mnc honor the writeBinaryPrec flag for most kinds of output
102    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
103    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
104      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
105    o add brackets in multi-terms sum to get same truncation, independent of
106      the face number (manage to get exactly same value of gU,gV at the cs-edge)
107      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
108    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
109      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
110      a maximum grid-scale Reynolds number.  Also, changes all length calculations
111      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
112      Suggested values of viscosity parameters found in mom_calc_visc.
113      Many new viscosity diagnostics available.
114    
115    checkpoint57s_post
116    o Add clearing-house for viscosity calculations, mom_calc_visc and
117      correct numerous bugs in LeithD and Smagorinsky discretizations.  
118      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
119      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
120      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
121      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
122      The Strain-Tension form is now called with useStrainTensonVisc=.true.
123      ViscAhStrain and viscAhTension are now retired.
124    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
125    o In response to JMC's bug report, genmake2 now ignores any soft-links
126      that it finds in the *current* directory when searching for files.
127      Soft-links found in any other source directories will still work as
128      they did before.
129    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
130      a C routine to unlimit the stack size
131    o mnc-ify pkg/aim snapshot vars
132    o mnc-ify pkg/land as requested by Daniel
133    o various changes to mnc including:
134      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
135      - output can now be grouped so that all files within a group
136          change the ITER portion of their names in lock-step together
137      - can now read ("global") PER-FACE (in addition to PER-TILE) files
138          and works with both EXCH1 and EXCH2 (but needs more testing)
139      - writing works for all verification test cases w/ g77 on Linux
140    
141    checkpoint57r_post
142    o make MNC variable initialization happen earlier
143    o add diagnostics for (almost) each term of the momentum Eq.
144    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
145    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
146    o remove MINIMAL_TAVE_OUTPUT option ;
147      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
148    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
149      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
150    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
151    o add time-dependent SST, SSS control
152    o cost terms in ecco/ modularized (new cost_generic.F)
153    o cost_averages routines are modularized (new cost_averagesgeneric.F)
154    o new infrastructure for seaice model vs. obs misfits in seaice/
155      * driver from the_main_loop.F is seaice_cost_driver.F
156      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
157      * gradient check in Exp. 6a of natl_box_adjoint/
158    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
159      (see README file)
160    
161    checkpoint57q_post
162    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
163    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
164      - bug was reported by Jean-Michel and Ian Fenty
165    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
166      update exp. cpl_aim+ocn output.
167    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
168      Needed for high-res. runs with large global files
169      to be able to limit tapelev size
170    o Changed some tests for adjoint:
171      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
172      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
173      * global_ocean.90x40x15/ back to default 3-level checkpointing
174    o Modifications to enable scripted COMMON to MODULE conversion
175      * verification/OpenAD/code/ has necessary scripts and description;
176      * converts, compiles and runs successfully;
177    
178    checkpoint57p_post
179    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
180    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
181      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
182    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
183    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
184      (was already the case for dissipation with mom_vecinv,
185       and also the case for grad.PhiHyd when staggered-timeStep)
186      This will allow to put dissipation out-off the AB time-stepping.
187     Unfortunately, affects truncation error. Update output of exp. that "fails"
188      (cg2d matching number) and leave the others for later: front_relax(10),
189      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
190      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
191    
192    checkpoint57o_post
193  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
194    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest
195  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
196    for ideal_2D_oce and lab_sea on linux_ia32_g77    for ideal_2D_oce and lab_sea on linux_ia32_g77
197    o set to #undef CTRL_SET_OLD_MAXCVARS_30
198      in global1x1_tot/code_seaice_adj to access indices 32, 33
199      (worth another tag)
200    
201  checkpoint57n_post  checkpoint57n_post
202  o adding precip control xx_precip 32  o adding precip control xx_precip 32

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