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revision 1.548 by jmc, Mon Sep 19 01:27:43 2005 UTC revision 1.600 by jmc, Sun Jan 22 16:49:26 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o  diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".  o pkg/bulk_force:
8     - add option and parameters to use AIM surface-flux formulae.
9     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
10       others forcing fields (defined in PARM05, parameter file "data") are loaded
11       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
12     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
13     - use the right EXCH call for uwind,vwind (to work on CS-grid).
14     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
15       and parameters (note: calcWindStress replaces .NOT.readwindstress).
16     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
17    
18    checkpoint58
19    o add "--embed-source" option to genmake2 which, when the supporting
20      tools can be compiled (as determined by genmake2) will turn on the
21      embed_files package which then embeds the entire MITgcm source code
22      (*.[fFhc] + Makefile) used for the build within the executable
23      - requested by CNH but off by default
24      - adds a paltry <9MB to the mitgcmuv executable in most cases
25      - only writes the output when useEMBEDSRC in eedata is true
26    o clean up 3-dim. relaxation codes:
27      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
28      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
29      * Thanks to Tom Haine for testing!
30    
31    checkpoint57z_post
32    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
33      affects output (@ truncation level) of exp. plume_on_slope ; updated.
34    o fix the pickup behavior for obcs in combination with ptracers
35    o fix a bug in ptracers_external_fields_load
36    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
37      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
38    o transfered surface NH pressure to eta field (if exactConserv).
39    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
40         and update lab_sea output.txt file.
41    o completing 3-dim. relaxation code: additional term
42         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
43      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
44      * At compile time, in "EXF_OPTIONS.h" set
45          #define  ALLOW_CLIMTEMP_RELAXATION
46          #define  ALLOW_CLIMSALT_RELAXATION
47      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
48          tauThetaClimRelax3Dim = 15552000.0,
49          tauSaltClimRelax3Dim  = 15552000.0,
50      * 3 cases:
51          1) Use a constant-in-time 3-dim. field
52          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
53          3) Real-time relax. to time-evolving prescribed field
54    o Adding Laplacian-type smoothness constraint on
55      initial and boundary (forcing) controls (ic, bc)
56      * enable at compile-time via
57        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
58      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
59      * Absolute scale somewhat unclear so far
60      * no area weighting was included since no other cost term does so far
61    
62    checkpoint57y_post
63    First step for a NLFS adjoint
64    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
65    o new init. routines for calc_r_star, calc_surf_dr
66    o still need to deal with ini_masks_etc
67    o testreport seemed happy
68    checkpoint57y_pre
69    
70    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
71    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
72    o add new offset feature to offline pkg (plus minor cleanup)
73    o cfc fixes for final year of integration
74    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
75      be in GCHEM_OPTIONS).
76    
77    checkpoint57x_post
78    o fix testreport Pb in multiple test experiment.
79    o cleanup our namelist syntax in verification:
80      - make it more F95 standards compliant (some work still needed)
81      - allows the vast majority of our tests to work with gfortran
82    o Non-Hydrostatic:
83     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
84     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
85    o Allow to apply AB on T,S rather than on AB(gT,gS):
86     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
87     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
88       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
89     - need a "clever" read_pickup to restart from the other AB formulation
90    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
91    o remove some unused variables (reduces number of compiler warnings)
92    o adjoint
93      * Disable useVariableViscosity for adjoint for time being
94        (there are a number of extensive recomputations)
95      * Initialize certain variables needed for adjoint
96    
97    checkpoint57w_post
98    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
99                 fix the singleCpuIO RS version of MDSWRITEFIELD
100       and add a WARNING if using globalFiles=T with multi-processors.
101    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
102      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
103    o tracer advection scheme:
104      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
105       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
106       was not very convenient).
107      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
108       (further tests needed for the implicit DST & Flux-Limiter schemes).
109    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
110      and sRef for convenience, handy, when you want to initialize
111      ptracers in a large domain with a constant non-zero value. Also,
112      untangle ptracers_init.F a little.
113    
114    checkpoint57v_post
115    o change dome exp. to use variable viscosity in side-drag terms.
116    o remove all the files from the cfc_offline test since they are now
117      incorporated into tutorial_cfc_offline which has been producing
118      identical results for a few days of testing
119    o add new parameter: sideDragFactor to enable half-slip-side BC
120      and change side-drag S/R to use viscosity from mom_calc_visc
121      (can switch back by setting sideDragFactor=0.); affects results at
122      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
123       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
124    o vorticity & strain are now computed without masking, to account for
125      no-slip-side BC in variable viscosity calculation ; mask is applied
126      anyway later on, before computing advection/coriolis terms.
127    o modify exp4 to test new obcs support for reading from external files
128      and for passive tracers
129    o fix behavior of ptracers_monitor when monitor output is written to a
130      netcdf-file; still not independent of monitor.F (writes in the same
131      file).
132    o change default value of tRef (put a uniform, meaningful value for ocean
133      & atmos) and initialize sRef (was missing, as Martin mentioned).
134    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
135      to be proportional to enstrophy dissipation length.  Thus,
136       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
137      This is now consistent with Smagorinsky and with the manual.
138    
139    checkpoint57u_post
140    o OBCS and PTRACERS: add open boundary support for passive tracers
141      - either use homogenous (pseudo) v.Neumann conditions or prescribe
142        OB-values from file; this is not different from the way theta and salinity
143        are treated
144      - however, Orlanski-radiation conditions are not supported, and the model
145        will stop if you use pTracers and Orlanski at the same time.
146      - beefed up the rountine obcs_external_fields_load: now only those open
147        boundary values are overwritten with values from files for which there
148        are really files, otherwise the OB-fields remain untouched. This makes
149        it possible to use different OBs at different ends of the domain (as
150        with EXF)
151    o reduce number of exch calls in shap_filt (s2).
152    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
153      truncation level) 4/5 MLAdjust test results (11&12 digits match).
154    
155    checkpoint57t_post
156    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
157    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
158      same truncation, independent of the face number: affects affects several
159      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
160    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
161      note that biharmonic viscosity + no-slip was not tested in any experiment.
162    o fix bug in non-linear free-surf side-drag ; generate new output for
163      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
164    o make mnc honor the writeBinaryPrec flag for most kinds of output
165    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
166    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
167      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
168    o add brackets in multi-terms sum to get same truncation, independent of
169      the face number (manage to get exactly same value of gU,gV at the cs-edge)
170      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
171    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
172      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
173      a maximum grid-scale Reynolds number.  Also, changes all length calculations
174      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
175      Suggested values of viscosity parameters found in mom_calc_visc.
176      Many new viscosity diagnostics available.
177    
178    checkpoint57s_post
179    o Add clearing-house for viscosity calculations, mom_calc_visc and
180      correct numerous bugs in LeithD and Smagorinsky discretizations.  
181      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
182      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
183      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
184      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
185      The Strain-Tension form is now called with useStrainTensonVisc=.true.
186      ViscAhStrain and viscAhTension are now retired.
187    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
188  o In response to JMC's bug report, genmake2 now ignores any soft-links  o In response to JMC's bug report, genmake2 now ignores any soft-links
189    that it finds in the *current* directory when searching for files.    that it finds in the *current* directory when searching for files.
190    Soft-links found in any other source directories will still work as    Soft-links found in any other source directories will still work as

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