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revision 1.535 by jmc, Tue Aug 23 13:43:44 2005 UTC revision 1.596 by jmc, Sat Dec 31 01:21:41 2005 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint57z_post
8    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
9      affects output (@ truncation level) of exp. plume_on_slope ; updated.
10    o fix the pickup behavior for obcs in combination with ptracers
11    o fix a bug in ptracers_external_fields_load
12    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
13      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
14    o transfered surface NH pressure to eta field (if exactConserv).
15    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
16         and update lab_sea output.txt file.
17    o completing 3-dim. relaxation code: additional term
18         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
19      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
20      * At compile time, in "EXF_OPTIONS.h" set
21          #define  ALLOW_CLIMTEMP_RELAXATION
22          #define  ALLOW_CLIMSALT_RELAXATION
23      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
24          tauThetaClimRelax3Dim = 15552000.0,
25          tauSaltClimRelax3Dim  = 15552000.0,
26      * 3 cases:
27          1) Use a constant-in-time 3-dim. field
28          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
29          3) Real-time relax. to time-evolving prescribed field
30    o Adding Laplacian-type smoothness constraint on
31      initial and boundary (forcing) controls (ic, bc)
32      * enable at compile-time via
33        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
34      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
35      * Absolute scale somewhat unclear so far
36      * no area weighting was included since no other cost term does so far
37    
38    checkpoint57y_post
39    First step for a NLFS adjoint
40    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
41    o new init. routines for calc_r_star, calc_surf_dr
42    o still need to deal with ini_masks_etc
43    o testreport seemed happy
44    checkpoint57y_pre
45    
46    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
47    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
48    o add new offset feature to offline pkg (plus minor cleanup)
49    o cfc fixes for final year of integration
50    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
51      be in GCHEM_OPTIONS).
52    
53    checkpoint57x_post
54    o fix testreport Pb in multiple test experiment.
55    o cleanup our namelist syntax in verification:
56      - make it more F95 standards compliant (some work still needed)
57      - allows the vast majority of our tests to work with gfortran
58    o Non-Hydrostatic:
59     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
60     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
61    o Allow to apply AB on T,S rather than on AB(gT,gS):
62     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
63     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
64       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
65     - need a "clever" read_pickup to restart from the other AB formulation
66    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
67    o remove some unused variables (reduces number of compiler warnings)
68    o adjoint
69      * Disable useVariableViscosity for adjoint for time being
70        (there are a number of extensive recomputations)
71      * Initialize certain variables needed for adjoint
72    
73    checkpoint57w_post
74    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
75                 fix the singleCpuIO RS version of MDSWRITEFIELD
76       and add a WARNING if using globalFiles=T with multi-processors.
77    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
78      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
79    o tracer advection scheme:
80      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
81       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
82       was not very convenient).
83      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
84       (further tests needed for the implicit DST & Flux-Limiter schemes).
85    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
86      and sRef for convenience, handy, when you want to initialize
87      ptracers in a large domain with a constant non-zero value. Also,
88      untangle ptracers_init.F a little.
89    
90    checkpoint57v_post
91    o change dome exp. to use variable viscosity in side-drag terms.
92    o remove all the files from the cfc_offline test since they are now
93      incorporated into tutorial_cfc_offline which has been producing
94      identical results for a few days of testing
95    o add new parameter: sideDragFactor to enable half-slip-side BC
96      and change side-drag S/R to use viscosity from mom_calc_visc
97      (can switch back by setting sideDragFactor=0.); affects results at
98      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
99       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
100    o vorticity & strain are now computed without masking, to account for
101      no-slip-side BC in variable viscosity calculation ; mask is applied
102      anyway later on, before computing advection/coriolis terms.
103    o modify exp4 to test new obcs support for reading from external files
104      and for passive tracers
105    o fix behavior of ptracers_monitor when monitor output is written to a
106      netcdf-file; still not independent of monitor.F (writes in the same
107      file).
108    o change default value of tRef (put a uniform, meaningful value for ocean
109      & atmos) and initialize sRef (was missing, as Martin mentioned).
110    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
111      to be proportional to enstrophy dissipation length.  Thus,
112       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
113      This is now consistent with Smagorinsky and with the manual.
114    
115    checkpoint57u_post
116    o OBCS and PTRACERS: add open boundary support for passive tracers
117      - either use homogenous (pseudo) v.Neumann conditions or prescribe
118        OB-values from file; this is not different from the way theta and salinity
119        are treated
120      - however, Orlanski-radiation conditions are not supported, and the model
121        will stop if you use pTracers and Orlanski at the same time.
122      - beefed up the rountine obcs_external_fields_load: now only those open
123        boundary values are overwritten with values from files for which there
124        are really files, otherwise the OB-fields remain untouched. This makes
125        it possible to use different OBs at different ends of the domain (as
126        with EXF)
127    o reduce number of exch calls in shap_filt (s2).
128    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
129      truncation level) 4/5 MLAdjust test results (11&12 digits match).
130    
131    checkpoint57t_post
132    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
133    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
134      same truncation, independent of the face number: affects affects several
135      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
136    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
137      note that biharmonic viscosity + no-slip was not tested in any experiment.
138    o fix bug in non-linear free-surf side-drag ; generate new output for
139      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
140    o make mnc honor the writeBinaryPrec flag for most kinds of output
141    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
142    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
143      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
144    o add brackets in multi-terms sum to get same truncation, independent of
145      the face number (manage to get exactly same value of gU,gV at the cs-edge)
146      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
147    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
148      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
149      a maximum grid-scale Reynolds number.  Also, changes all length calculations
150      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
151      Suggested values of viscosity parameters found in mom_calc_visc.
152      Many new viscosity diagnostics available.
153    
154    checkpoint57s_post
155    o Add clearing-house for viscosity calculations, mom_calc_visc and
156      correct numerous bugs in LeithD and Smagorinsky discretizations.  
157      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
158      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
159      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
160      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
161      The Strain-Tension form is now called with useStrainTensonVisc=.true.
162      ViscAhStrain and viscAhTension are now retired.
163    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
164    o In response to JMC's bug report, genmake2 now ignores any soft-links
165      that it finds in the *current* directory when searching for files.
166      Soft-links found in any other source directories will still work as
167      they did before.
168    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
169      a C routine to unlimit the stack size
170    o mnc-ify pkg/aim snapshot vars
171    o mnc-ify pkg/land as requested by Daniel
172    o various changes to mnc including:
173      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
174      - output can now be grouped so that all files within a group
175          change the ITER portion of their names in lock-step together
176      - can now read ("global") PER-FACE (in addition to PER-TILE) files
177          and works with both EXCH1 and EXCH2 (but needs more testing)
178      - writing works for all verification test cases w/ g77 on Linux
179    
180    checkpoint57r_post
181    o make MNC variable initialization happen earlier
182    o add diagnostics for (almost) each term of the momentum Eq.
183    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
184    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
185    o remove MINIMAL_TAVE_OUTPUT option ;
186      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
187  o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src  o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
188    allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)    allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
189    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
190    o add time-dependent SST, SSS control
191    o cost terms in ecco/ modularized (new cost_generic.F)
192    o cost_averages routines are modularized (new cost_averagesgeneric.F)
193    o new infrastructure for seaice model vs. obs misfits in seaice/
194      * driver from the_main_loop.F is seaice_cost_driver.F
195      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
196      * gradient check in Exp. 6a of natl_box_adjoint/
197    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
198      (see README file)
199    
200  checkpoint57q_post  checkpoint57q_post
201  o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)  o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)

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