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revision 1.526 by heimbach, Sat Jul 30 11:47:39 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
188      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
201    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
202    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
203      - bug was reported by Jean-Michel and Ian Fenty
204    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
205      update exp. cpl_aim+ocn output.
206    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
207      Needed for high-res. runs with large global files
208      to be able to limit tapelev size
209    o Changed some tests for adjoint:
210      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
211      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
212      * global_ocean.90x40x15/ back to default 3-level checkpointing
213    o Modifications to enable scripted COMMON to MODULE conversion
214      * verification/OpenAD/code/ has necessary scripts and description;
215      * converts, compiles and runs successfully;
216    
217    checkpoint57p_post
218    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
219    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
220      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
221    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
222    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
223      (was already the case for dissipation with mom_vecinv,
224       and also the case for grad.PhiHyd when staggered-timeStep)
225      This will allow to put dissipation out-off the AB time-stepping.
226     Unfortunately, affects truncation error. Update output of exp. that "fails"
227      (cg2d matching number) and leave the others for later: front_relax(10),
228      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
229      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
230    
231  checkpoint57o_post  checkpoint57o_post
232  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
233    (2) its ready to be documented during the 20050801 DocFest    (2) its ready to be documented during the 20050801 DocFest

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