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revision 1.526 by heimbach, Sat Jul 30 11:47:39 2005 UTC revision 1.590 by heimbach, Tue Dec 13 19:53:52 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 gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
8         and update lab_sea output.txt file.
9    o completing 3-dim. relaxation code: additional term
10         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
11      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
12      * At compile time, in "EXF_OPTIONS.h" set
13          #define  ALLOW_CLIMTEMP_RELAXATION
14          #define  ALLOW_CLIMSALT_RELAXATION
15      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
16          tauThetaClimRelax3Dim = 15552000.0,
17          tauSaltClimRelax3Dim  = 15552000.0,
18      * 3 cases:
19          1) Use a constant-in-time 3-dim. field
20          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
21          3) Real-time relax. to time-evolving prescribed field
22    
23    checkpoint57y_post
24    First step for a NLFS adjoint
25    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
26    o new init. routines for calc_r_star, calc_surf_dr
27    o still need to deal with ini_masks_etc
28    o testreport seemed happy
29    checkpoint57y_pre
30    
31    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
32    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
33    o add new offset feature to offline pkg (plus minor cleanup)
34    o cfc fixes for final year of integration
35    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
36      be in GCHEM_OPTIONS).
37    
38    checkpoint57x_post
39    o fix testreport Pb in multiple test experiment.
40    o cleanup our namelist syntax in verification:
41      - make it more F95 standards compliant (some work still needed)
42      - allows the vast majority of our tests to work with gfortran
43    o Non-Hydrostatic:
44     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
45     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
46    o Allow to apply AB on T,S rather than on AB(gT,gS):
47     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
48     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
49       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
50     - need a "clever" read_pickup to restart from the other AB formulation
51    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
52    o remove some unused variables (reduces number of compiler warnings)
53    o adjoint
54      * Disable useVariableViscosity for adjoint for time being
55        (there are a number of extensive recomputations)
56      * Initialize certain variables needed for adjoint
57    
58    checkpoint57w_post
59    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
60                 fix the singleCpuIO RS version of MDSWRITEFIELD
61       and add a WARNING if using globalFiles=T with multi-processors.
62    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
63      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
64    o tracer advection scheme:
65      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
66       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
67       was not very convenient).
68      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
69       (further tests needed for the implicit DST & Flux-Limiter schemes).
70    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
71      and sRef for convenience, handy, when you want to initialize
72      ptracers in a large domain with a constant non-zero value. Also,
73      untangle ptracers_init.F a little.
74    
75    checkpoint57v_post
76    o change dome exp. to use variable viscosity in side-drag terms.
77    o remove all the files from the cfc_offline test since they are now
78      incorporated into tutorial_cfc_offline which has been producing
79      identical results for a few days of testing
80    o add new parameter: sideDragFactor to enable half-slip-side BC
81      and change side-drag S/R to use viscosity from mom_calc_visc
82      (can switch back by setting sideDragFactor=0.); affects results at
83      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
84       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
85    o vorticity & strain are now computed without masking, to account for
86      no-slip-side BC in variable viscosity calculation ; mask is applied
87      anyway later on, before computing advection/coriolis terms.
88    o modify exp4 to test new obcs support for reading from external files
89      and for passive tracers
90    o fix behavior of ptracers_monitor when monitor output is written to a
91      netcdf-file; still not independent of monitor.F (writes in the same
92      file).
93    o change default value of tRef (put a uniform, meaningful value for ocean
94      & atmos) and initialize sRef (was missing, as Martin mentioned).
95    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
96      to be proportional to enstrophy dissipation length.  Thus,
97       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
98      This is now consistent with Smagorinsky and with the manual.
99    
100    checkpoint57u_post
101    o OBCS and PTRACERS: add open boundary support for passive tracers
102      - either use homogenous (pseudo) v.Neumann conditions or prescribe
103        OB-values from file; this is not different from the way theta and salinity
104        are treated
105      - however, Orlanski-radiation conditions are not supported, and the model
106        will stop if you use pTracers and Orlanski at the same time.
107      - beefed up the rountine obcs_external_fields_load: now only those open
108        boundary values are overwritten with values from files for which there
109        are really files, otherwise the OB-fields remain untouched. This makes
110        it possible to use different OBs at different ends of the domain (as
111        with EXF)
112    o reduce number of exch calls in shap_filt (s2).
113    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
114      truncation level) 4/5 MLAdjust test results (11&12 digits match).
115    
116    checkpoint57t_post
117    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
118    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
119      same truncation, independent of the face number: affects affects several
120      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
121    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
122      note that biharmonic viscosity + no-slip was not tested in any experiment.
123    o fix bug in non-linear free-surf side-drag ; generate new output for
124      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
125    o make mnc honor the writeBinaryPrec flag for most kinds of output
126    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
127    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
128      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
129    o add brackets in multi-terms sum to get same truncation, independent of
130      the face number (manage to get exactly same value of gU,gV at the cs-edge)
131      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
132    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
133      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
134      a maximum grid-scale Reynolds number.  Also, changes all length calculations
135      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
136      Suggested values of viscosity parameters found in mom_calc_visc.
137      Many new viscosity diagnostics available.
138    
139    checkpoint57s_post
140    o Add clearing-house for viscosity calculations, mom_calc_visc and
141      correct numerous bugs in LeithD and Smagorinsky discretizations.  
142      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
143      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
144      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
145      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
146      The Strain-Tension form is now called with useStrainTensonVisc=.true.
147      ViscAhStrain and viscAhTension are now retired.
148    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
149    o In response to JMC's bug report, genmake2 now ignores any soft-links
150      that it finds in the *current* directory when searching for files.
151      Soft-links found in any other source directories will still work as
152      they did before.
153    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
154      a C routine to unlimit the stack size
155    o mnc-ify pkg/aim snapshot vars
156    o mnc-ify pkg/land as requested by Daniel
157    o various changes to mnc including:
158      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
159      - output can now be grouped so that all files within a group
160          change the ITER portion of their names in lock-step together
161      - can now read ("global") PER-FACE (in addition to PER-TILE) files
162          and works with both EXCH1 and EXCH2 (but needs more testing)
163      - writing works for all verification test cases w/ g77 on Linux
164    
165    checkpoint57r_post
166    o make MNC variable initialization happen earlier
167    o add diagnostics for (almost) each term of the momentum Eq.
168    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
169    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
170    o remove MINIMAL_TAVE_OUTPUT option ;
171      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
172    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
173      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
174    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
175    o add time-dependent SST, SSS control
176    o cost terms in ecco/ modularized (new cost_generic.F)
177    o cost_averages routines are modularized (new cost_averagesgeneric.F)
178    o new infrastructure for seaice model vs. obs misfits in seaice/
179      * driver from the_main_loop.F is seaice_cost_driver.F
180      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
181      * gradient check in Exp. 6a of natl_box_adjoint/
182    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
183      (see README file)
184    
185    checkpoint57q_post
186    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
187    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
188      - bug was reported by Jean-Michel and Ian Fenty
189    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
190      update exp. cpl_aim+ocn output.
191    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
192      Needed for high-res. runs with large global files
193      to be able to limit tapelev size
194    o Changed some tests for adjoint:
195      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
196      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
197      * global_ocean.90x40x15/ back to default 3-level checkpointing
198    o Modifications to enable scripted COMMON to MODULE conversion
199      * verification/OpenAD/code/ has necessary scripts and description;
200      * converts, compiles and runs successfully;
201    
202    checkpoint57p_post
203    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
204    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
205      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
206    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
207    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
208      (was already the case for dissipation with mom_vecinv,
209       and also the case for grad.PhiHyd when staggered-timeStep)
210      This will allow to put dissipation out-off the AB time-stepping.
211     Unfortunately, affects truncation error. Update output of exp. that "fails"
212      (cg2d matching number) and leave the others for later: front_relax(10),
213      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
214      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
215    
216  checkpoint57o_post  checkpoint57o_post
217  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
218    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest

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