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revision 1.526 by heimbach, Sat Jul 30 11:47:39 2005 UTC revision 1.607 by mlosch, Fri Feb 10 07:56:43 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 add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
8      if bulk formulae are used in long integration (especially EmPmR). Turn
9      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
10      if balancePrintMean, the imbalance that is substracted is printed to
11      STDOUT.
12    o fix bug (typo) in obcs_apply_eta.F
13    o add a new package shelfice which enables us to model the circulation
14      underneath shelf-ice with draughts of hundreds of meters.
15     - works
16     - to do: + include improved thermodynamics
17              + check whether kSurfC (from model/inc/SURFACE.h) can be used
18                instead of new field kTopC
19              + can we use topoFile, Ro_surf and existing code in ini_depth.F
20                instead of new field R_shelfIce and new code in ini_depth.F
21                and ini_mask_etc.F?
22    o seaice pkg:
23     - add a cpp-flag to include a simple formula for a salinity dependent
24       freezing point of sea water at the surface
25     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
26       meridional stresses are now different (and hopefully correct)
27    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
28       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
29       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
30    o pkg/diagnostics: add options and parameters for regional-statistics
31       diagnostics ; define regions by reading a region-mask from a file
32       (might add other options later)
33    o pkg/bulk_force:
34     - add option and parameters to use AIM surface-flux formulae.
35     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
36       others forcing fields (defined in PARM05, parameter file "data") are loaded
37       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
38     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
39     - use the right EXCH call for uwind,vwind (to work on CS-grid).
40     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
41       and parameters (note: calcWindStress replaces .NOT.readwindstress).
42     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
43    
44    checkpoint58
45    o add "--embed-source" option to genmake2 which, when the supporting
46      tools can be compiled (as determined by genmake2) will turn on the
47      embed_files package which then embeds the entire MITgcm source code
48      (*.[fFhc] + Makefile) used for the build within the executable
49      - requested by CNH but off by default
50      - adds a paltry <9MB to the mitgcmuv executable in most cases
51      - only writes the output when useEMBEDSRC in eedata is true
52    o clean up 3-dim. relaxation codes:
53      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
54      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
55      * Thanks to Tom Haine for testing!
56    
57    checkpoint57z_post
58    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
59      affects output (@ truncation level) of exp. plume_on_slope ; updated.
60    o fix the pickup behavior for obcs in combination with ptracers
61    o fix a bug in ptracers_external_fields_load
62    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
63      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
64    o transfered surface NH pressure to eta field (if exactConserv).
65    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
66         and update lab_sea output.txt file.
67    o completing 3-dim. relaxation code: additional term
68         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
69      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
70      * At compile time, in "EXF_OPTIONS.h" set
71          #define  ALLOW_CLIMTEMP_RELAXATION
72          #define  ALLOW_CLIMSALT_RELAXATION
73      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
74          tauThetaClimRelax3Dim = 15552000.0,
75          tauSaltClimRelax3Dim  = 15552000.0,
76      * 3 cases:
77          1) Use a constant-in-time 3-dim. field
78          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
79          3) Real-time relax. to time-evolving prescribed field
80    o Adding Laplacian-type smoothness constraint on
81      initial and boundary (forcing) controls (ic, bc)
82      * enable at compile-time via
83        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
84      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
85      * Absolute scale somewhat unclear so far
86      * no area weighting was included since no other cost term does so far
87    
88    checkpoint57y_post
89    First step for a NLFS adjoint
90    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
91    o new init. routines for calc_r_star, calc_surf_dr
92    o still need to deal with ini_masks_etc
93    o testreport seemed happy
94    checkpoint57y_pre
95    
96    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
97    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
98    o add new offset feature to offline pkg (plus minor cleanup)
99    o cfc fixes for final year of integration
100    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
101      be in GCHEM_OPTIONS).
102    
103    checkpoint57x_post
104    o fix testreport Pb in multiple test experiment.
105    o cleanup our namelist syntax in verification:
106      - make it more F95 standards compliant (some work still needed)
107      - allows the vast majority of our tests to work with gfortran
108    o Non-Hydrostatic:
109     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
110     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
111    o Allow to apply AB on T,S rather than on AB(gT,gS):
112     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
113     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
114       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
115     - need a "clever" read_pickup to restart from the other AB formulation
116    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
117    o remove some unused variables (reduces number of compiler warnings)
118    o adjoint
119      * Disable useVariableViscosity for adjoint for time being
120        (there are a number of extensive recomputations)
121      * Initialize certain variables needed for adjoint
122    
123    checkpoint57w_post
124    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
125                 fix the singleCpuIO RS version of MDSWRITEFIELD
126       and add a WARNING if using globalFiles=T with multi-processors.
127    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
128      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
129    o tracer advection scheme:
130      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
131       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
132       was not very convenient).
133      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
134       (further tests needed for the implicit DST & Flux-Limiter schemes).
135    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
136      and sRef for convenience, handy, when you want to initialize
137      ptracers in a large domain with a constant non-zero value. Also,
138      untangle ptracers_init.F a little.
139    
140    checkpoint57v_post
141    o change dome exp. to use variable viscosity in side-drag terms.
142    o remove all the files from the cfc_offline test since they are now
143      incorporated into tutorial_cfc_offline which has been producing
144      identical results for a few days of testing
145    o add new parameter: sideDragFactor to enable half-slip-side BC
146      and change side-drag S/R to use viscosity from mom_calc_visc
147      (can switch back by setting sideDragFactor=0.); affects results at
148      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
149       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
150    o vorticity & strain are now computed without masking, to account for
151      no-slip-side BC in variable viscosity calculation ; mask is applied
152      anyway later on, before computing advection/coriolis terms.
153    o modify exp4 to test new obcs support for reading from external files
154      and for passive tracers
155    o fix behavior of ptracers_monitor when monitor output is written to a
156      netcdf-file; still not independent of monitor.F (writes in the same
157      file).
158    o change default value of tRef (put a uniform, meaningful value for ocean
159      & atmos) and initialize sRef (was missing, as Martin mentioned).
160    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
161      to be proportional to enstrophy dissipation length.  Thus,
162       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
163      This is now consistent with Smagorinsky and with the manual.
164    
165    checkpoint57u_post
166    o OBCS and PTRACERS: add open boundary support for passive tracers
167      - either use homogenous (pseudo) v.Neumann conditions or prescribe
168        OB-values from file; this is not different from the way theta and salinity
169        are treated
170      - however, Orlanski-radiation conditions are not supported, and the model
171        will stop if you use pTracers and Orlanski at the same time.
172      - beefed up the rountine obcs_external_fields_load: now only those open
173        boundary values are overwritten with values from files for which there
174        are really files, otherwise the OB-fields remain untouched. This makes
175        it possible to use different OBs at different ends of the domain (as
176        with EXF)
177    o reduce number of exch calls in shap_filt (s2).
178    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
179      truncation level) 4/5 MLAdjust test results (11&12 digits match).
180    
181    checkpoint57t_post
182    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
183    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
184      same truncation, independent of the face number: affects affects several
185      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
186    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
187      note that biharmonic viscosity + no-slip was not tested in any experiment.
188    o fix bug in non-linear free-surf side-drag ; generate new output for
189      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
190    o make mnc honor the writeBinaryPrec flag for most kinds of output
191    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
192    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
193      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
194    o add brackets in multi-terms sum to get same truncation, independent of
195      the face number (manage to get exactly same value of gU,gV at the cs-edge)
196      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
197    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
198      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
199      a maximum grid-scale Reynolds number.  Also, changes all length calculations
200      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
201      Suggested values of viscosity parameters found in mom_calc_visc.
202      Many new viscosity diagnostics available.
203    
204    checkpoint57s_post
205    o Add clearing-house for viscosity calculations, mom_calc_visc and
206      correct numerous bugs in LeithD and Smagorinsky discretizations.  
207      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
208      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
209      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
210      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
211      The Strain-Tension form is now called with useStrainTensonVisc=.true.
212      ViscAhStrain and viscAhTension are now retired.
213    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
214    o In response to JMC's bug report, genmake2 now ignores any soft-links
215      that it finds in the *current* directory when searching for files.
216      Soft-links found in any other source directories will still work as
217      they did before.
218    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
219      a C routine to unlimit the stack size
220    o mnc-ify pkg/aim snapshot vars
221    o mnc-ify pkg/land as requested by Daniel
222    o various changes to mnc including:
223      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
224      - output can now be grouped so that all files within a group
225          change the ITER portion of their names in lock-step together
226      - can now read ("global") PER-FACE (in addition to PER-TILE) files
227          and works with both EXCH1 and EXCH2 (but needs more testing)
228      - writing works for all verification test cases w/ g77 on Linux
229    
230    checkpoint57r_post
231    o make MNC variable initialization happen earlier
232    o add diagnostics for (almost) each term of the momentum Eq.
233    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
234    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
235    o remove MINIMAL_TAVE_OUTPUT option ;
236      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
237    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
238      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
239    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
240    o add time-dependent SST, SSS control
241    o cost terms in ecco/ modularized (new cost_generic.F)
242    o cost_averages routines are modularized (new cost_averagesgeneric.F)
243    o new infrastructure for seaice model vs. obs misfits in seaice/
244      * driver from the_main_loop.F is seaice_cost_driver.F
245      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
246      * gradient check in Exp. 6a of natl_box_adjoint/
247    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
248      (see README file)
249    
250    checkpoint57q_post
251    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
252    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
253      - bug was reported by Jean-Michel and Ian Fenty
254    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
255      update exp. cpl_aim+ocn output.
256    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
257      Needed for high-res. runs with large global files
258      to be able to limit tapelev size
259    o Changed some tests for adjoint:
260      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
261      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
262      * global_ocean.90x40x15/ back to default 3-level checkpointing
263    o Modifications to enable scripted COMMON to MODULE conversion
264      * verification/OpenAD/code/ has necessary scripts and description;
265      * converts, compiles and runs successfully;
266    
267    checkpoint57p_post
268    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
269    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
270      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
271    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
272    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
273      (was already the case for dissipation with mom_vecinv,
274       and also the case for grad.PhiHyd when staggered-timeStep)
275      This will allow to put dissipation out-off the AB time-stepping.
276     Unfortunately, affects truncation error. Update output of exp. that "fails"
277      (cg2d matching number) and leave the others for later: front_relax(10),
278      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
279      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
280    
281  checkpoint57o_post  checkpoint57o_post
282  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
283    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest

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