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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.634 by jmc, Fri Mar 17 16:24:23 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 adding precip control xx_precip  o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
8  o moved ptracer ctrl index 17 -> 32    (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
9    o add on/off flag useOffLine for package OFFLINE
10    o seaice:
11      - modify advection so that it works also on the C-grid
12      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
13        problem in multi-tile runs with C-grid
14      - add flags for clipping ice velocities and/or masking solver forcing
15      - fix drag (ocean on ice) formulation and a bug that caused noise in the
16        C-grid solver
17      - added a few comments to seaice_diffusion.F
18      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
19        are now exclusive)
20      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
21        required re-ordering the code a little:
22       + make DAIRN global variable (defined in SEAICE)
23       + move computation of the viscosities eta and zeta into a new separate
24         routine (because I need to recompute them in seaice_ocean_stress.F)
25    
26    checkpoint58b_post
27    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
28      update output.txt of exp. aim.5l_cs.thSI
29    o various mnc cleanups and improvements:
30      + shrink lookup tables by factor of ~4
31      + better error reporting when running out of lookup space
32      + able to handle longer path/file names (up to 500 chars)
33    o adjoint:
34      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
35      - TBD: "hidden" mom_vecinv recomp. in dynamics
36    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
37     (allow to differentiate between forcing components using new integer flags:
38      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
39     and add new flag to put Dissipation tendency out of Adams-Bashforth.
40    o ecco
41      - enable trend removal from SSH anomaly obs.
42    o adjoint
43      - a fix for PmEpR when #undef EXACT_CONSERV
44      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
45      - try to fix "hidden" recomp. in forward_step for NLFS
46        (NLFS seems broken sometimes after I checked it in)
47    o seaice:
48     - add c-grid version of the dynamic solver:
49       + three new routines that are the c-grid substitute lsr, dynsolver
50         and ostres
51       + put a few fields that were local to dynsolver into global common
52         blocks, so that I can move the computation of stresses etc into
53         seaice_lsr (saves coding but may break the adjoint).
54     - replace more hardwired parameters by runtime parameters
55     - add ice masks that mask the rhs of the implicit solvers where there
56       is no ice (commented out in seaice_dynsolver, because i am not sure
57       if this works properly), eventually this should replace the clipping
58       of ice velocities in seaice_dynsolver to +/-40cm/s.
59    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
60      include it only where its needed
61    o move balancing of fluxes before the call of external_forcing_surf
62    o seaice:
63      - correct units of turning angles (now they are really in degrees)
64      - move computation of GWATX/Y out of main routine into dynsolver
65      - initialize GWATX/Y in seaice_init
66    o Apply mask on Fresh-Water flux (needed for SSH forcing).
67      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
68    o seaice: add runtime flags for turning angles (default to zero)
69    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
70      and trend from exf forcing and ctrl control adjustments
71    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
72      (since checkpoint57x_post)
73    o change the default rotation period to 86164.s = the Earth rotation
74    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
75      and based on a reference stratification. Tested within hs94.cs-32x32x5.
76    o seaice advection: add code for choosing between the default (2nd order
77      central differences) and multiDim advection schemes provided by
78      pkg/generic_advdiff
79    o seaice:
80      - removed all references to SEAICE_GRID.h fields from
81        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
82        (cubed-sphere configuration will change a little)
83      - grid computations in seaice_init are obsolete now.
84      - cleaned up code a little so that is easier to read (hopefully).
85      - added new (better?) discretizations of default advection and diffusion
86        (turn on with SEAICEuseFluxForm)
87      - replace 1 in 3d global fields by kSurface in growth.F
88      
89    checkpoint58a_post
90    o seaice:
91      - bug fix in advect.F
92    o shelfice:
93      - separate shelfice load anomaly from pload (breaks with time
94        dependent forcing), => introduce constant field shelficeLoadAnomaly.
95        Its default is 0., but it may be computed more cleverly from (unknown)
96        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
97        done offline. A good approximation of the pressure load anomaly is
98        necessary to avoid large initial adjustment processes underneath
99        deep-reaching shelfice.
100      - small fix in ISOMIP shelfice_thermodynamics
101      - add more sophisticated thermodynamics of Hellmer (1989), this is
102        now the default
103      - give a few constants more intuitive names
104    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
105      if bulk formulae are used in long integration (especially EmPmR). Turn
106      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
107      if balancePrintMean, the imbalance that is substracted is printed to
108      STDOUT.
109    o fix bug (typo) in obcs_apply_eta.F
110    o add a new package shelfice which enables us to model the circulation
111      underneath shelf-ice with draughts of hundreds of meters.
112     - works
113     - to do: + include improved thermodynamics
114              + check whether kSurfC (from model/inc/SURFACE.h) can be used
115                instead of new field kTopC
116              + can we use topoFile, Ro_surf and existing code in ini_depth.F
117                instead of new field R_shelfIce and new code in ini_depth.F
118                and ini_mask_etc.F?
119              + adjust vertical mixing schemes?
120    o seaice pkg:
121     - add a cpp-flag to include a simple formula for a salinity dependent
122       freezing point of sea water at the surface
123     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
124       meridional stresses are now different (and hopefully correct)
125    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
126       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
127       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
128    o pkg/diagnostics: add options and parameters for regional-statistics
129       diagnostics ; define regions by reading a region-mask from a file
130       (might add other options later)
131    o pkg/bulk_force:
132     - add option and parameters to use AIM surface-flux formulae.
133     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
134       others forcing fields (defined in PARM05, parameter file "data") are loaded
135       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
136     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
137     - use the right EXCH call for uwind,vwind (to work on CS-grid).
138     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
139       and parameters (note: calcWindStress replaces .NOT.readwindstress).
140     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
141    
142    checkpoint58
143    o add "--embed-source" option to genmake2 which, when the supporting
144      tools can be compiled (as determined by genmake2) will turn on the
145      embed_files package which then embeds the entire MITgcm source code
146      (*.[fFhc] + Makefile) used for the build within the executable
147      - requested by CNH but off by default
148      - adds a paltry <9MB to the mitgcmuv executable in most cases
149      - only writes the output when useEMBEDSRC in eedata is true
150    o clean up 3-dim. relaxation codes:
151      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
152      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
153      * Thanks to Tom Haine for testing!
154    
155    checkpoint57z_post
156    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
157      affects output (@ truncation level) of exp. plume_on_slope ; updated.
158    o fix the pickup behavior for obcs in combination with ptracers
159    o fix a bug in ptracers_external_fields_load
160    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
161      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
162    o transfered surface NH pressure to eta field (if exactConserv).
163    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
164         and update lab_sea output.txt file.
165    o completing 3-dim. relaxation code: additional term
166         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
167      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
168      * At compile time, in "EXF_OPTIONS.h" set
169          #define  ALLOW_CLIMTEMP_RELAXATION
170          #define  ALLOW_CLIMSALT_RELAXATION
171      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
172          tauThetaClimRelax3Dim = 15552000.0,
173          tauSaltClimRelax3Dim  = 15552000.0,
174      * 3 cases:
175          1) Use a constant-in-time 3-dim. field
176          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
177          3) Real-time relax. to time-evolving prescribed field
178    o Adding Laplacian-type smoothness constraint on
179      initial and boundary (forcing) controls (ic, bc)
180      * enable at compile-time via
181        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
182      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
183      * Absolute scale somewhat unclear so far
184      * no area weighting was included since no other cost term does so far
185    
186    checkpoint57y_post
187    First step for a NLFS adjoint
188    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
189    o new init. routines for calc_r_star, calc_surf_dr
190    o still need to deal with ini_masks_etc
191    o testreport seemed happy
192    checkpoint57y_pre
193    
194    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
195    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
196    o add new offset feature to offline pkg (plus minor cleanup)
197    o cfc fixes for final year of integration
198    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
199      be in GCHEM_OPTIONS).
200    
201    checkpoint57x_post
202    o fix testreport Pb in multiple test experiment.
203    o cleanup our namelist syntax in verification:
204      - make it more F95 standards compliant (some work still needed)
205      - allows the vast majority of our tests to work with gfortran
206    o Non-Hydrostatic:
207     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
208     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
209    o Allow to apply AB on T,S rather than on AB(gT,gS):
210     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
211     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
212       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
213     - need a "clever" read_pickup to restart from the other AB formulation
214    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
215    o remove some unused variables (reduces number of compiler warnings)
216    o adjoint
217      * Disable useVariableViscosity for adjoint for time being
218        (there are a number of extensive recomputations)
219      * Initialize certain variables needed for adjoint
220    
221    checkpoint57w_post
222    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
223                 fix the singleCpuIO RS version of MDSWRITEFIELD
224       and add a WARNING if using globalFiles=T with multi-processors.
225    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
226      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
227    o tracer advection scheme:
228      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
229       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
230       was not very convenient).
231      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
232       (further tests needed for the implicit DST & Flux-Limiter schemes).
233    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
234      and sRef for convenience, handy, when you want to initialize
235      ptracers in a large domain with a constant non-zero value. Also,
236      untangle ptracers_init.F a little.
237    
238    checkpoint57v_post
239    o change dome exp. to use variable viscosity in side-drag terms.
240    o remove all the files from the cfc_offline test since they are now
241      incorporated into tutorial_cfc_offline which has been producing
242      identical results for a few days of testing
243    o add new parameter: sideDragFactor to enable half-slip-side BC
244      and change side-drag S/R to use viscosity from mom_calc_visc
245      (can switch back by setting sideDragFactor=0.); affects results at
246      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
247       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
248    o vorticity & strain are now computed without masking, to account for
249      no-slip-side BC in variable viscosity calculation ; mask is applied
250      anyway later on, before computing advection/coriolis terms.
251    o modify exp4 to test new obcs support for reading from external files
252      and for passive tracers
253    o fix behavior of ptracers_monitor when monitor output is written to a
254      netcdf-file; still not independent of monitor.F (writes in the same
255      file).
256    o change default value of tRef (put a uniform, meaningful value for ocean
257      & atmos) and initialize sRef (was missing, as Martin mentioned).
258    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
259      to be proportional to enstrophy dissipation length.  Thus,
260       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
261      This is now consistent with Smagorinsky and with the manual.
262    
263    checkpoint57u_post
264    o OBCS and PTRACERS: add open boundary support for passive tracers
265      - either use homogenous (pseudo) v.Neumann conditions or prescribe
266        OB-values from file; this is not different from the way theta and salinity
267        are treated
268      - however, Orlanski-radiation conditions are not supported, and the model
269        will stop if you use pTracers and Orlanski at the same time.
270      - beefed up the rountine obcs_external_fields_load: now only those open
271        boundary values are overwritten with values from files for which there
272        are really files, otherwise the OB-fields remain untouched. This makes
273        it possible to use different OBs at different ends of the domain (as
274        with EXF)
275    o reduce number of exch calls in shap_filt (s2).
276    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
277      truncation level) 4/5 MLAdjust test results (11&12 digits match).
278    
279    checkpoint57t_post
280    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
281    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
282      same truncation, independent of the face number: affects affects several
283      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
284    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
285      note that biharmonic viscosity + no-slip was not tested in any experiment.
286    o fix bug in non-linear free-surf side-drag ; generate new output for
287      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
288    o make mnc honor the writeBinaryPrec flag for most kinds of output
289    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
290    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
291      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
292    o add brackets in multi-terms sum to get same truncation, independent of
293      the face number (manage to get exactly same value of gU,gV at the cs-edge)
294      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
295    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
296      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
297      a maximum grid-scale Reynolds number.  Also, changes all length calculations
298      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
299      Suggested values of viscosity parameters found in mom_calc_visc.
300      Many new viscosity diagnostics available.
301    
302    checkpoint57s_post
303    o Add clearing-house for viscosity calculations, mom_calc_visc and
304      correct numerous bugs in LeithD and Smagorinsky discretizations.  
305      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
306      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
307      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
308      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
309      The Strain-Tension form is now called with useStrainTensonVisc=.true.
310      ViscAhStrain and viscAhTension are now retired.
311    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
312    o In response to JMC's bug report, genmake2 now ignores any soft-links
313      that it finds in the *current* directory when searching for files.
314      Soft-links found in any other source directories will still work as
315      they did before.
316    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
317      a C routine to unlimit the stack size
318    o mnc-ify pkg/aim snapshot vars
319    o mnc-ify pkg/land as requested by Daniel
320    o various changes to mnc including:
321      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
322      - output can now be grouped so that all files within a group
323          change the ITER portion of their names in lock-step together
324      - can now read ("global") PER-FACE (in addition to PER-TILE) files
325          and works with both EXCH1 and EXCH2 (but needs more testing)
326      - writing works for all verification test cases w/ g77 on Linux
327    
328    checkpoint57r_post
329    o make MNC variable initialization happen earlier
330    o add diagnostics for (almost) each term of the momentum Eq.
331    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
332    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
333    o remove MINIMAL_TAVE_OUTPUT option ;
334      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
335    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
336      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
337    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
338    o add time-dependent SST, SSS control
339    o cost terms in ecco/ modularized (new cost_generic.F)
340    o cost_averages routines are modularized (new cost_averagesgeneric.F)
341    o new infrastructure for seaice model vs. obs misfits in seaice/
342      * driver from the_main_loop.F is seaice_cost_driver.F
343      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
344      * gradient check in Exp. 6a of natl_box_adjoint/
345    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
346      (see README file)
347    
348    checkpoint57q_post
349    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
350    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
351      - bug was reported by Jean-Michel and Ian Fenty
352    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
353      update exp. cpl_aim+ocn output.
354    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
355      Needed for high-res. runs with large global files
356      to be able to limit tapelev size
357    o Changed some tests for adjoint:
358      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
359      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
360      * global_ocean.90x40x15/ back to default 3-level checkpointing
361    o Modifications to enable scripted COMMON to MODULE conversion
362      * verification/OpenAD/code/ has necessary scripts and description;
363      * converts, compiles and runs successfully;
364    
365    checkpoint57p_post
366    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
367    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
368      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
369    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
370    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
371      (was already the case for dissipation with mom_vecinv,
372       and also the case for grad.PhiHyd when staggered-timeStep)
373      This will allow to put dissipation out-off the AB time-stepping.
374     Unfortunately, affects truncation error. Update output of exp. that "fails"
375      (cg2d matching number) and leave the others for later: front_relax(10),
376      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
377      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
378    
379    checkpoint57o_post
380    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
381      (2) its ready to be documented during the 20050801 DocFest
382    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
383      for ideal_2D_oce and lab_sea on linux_ia32_g77
384    o set to #undef CTRL_SET_OLD_MAXCVARS_30
385      in global1x1_tot/code_seaice_adj to access indices 32, 33
386      (worth another tag)
387    
388    checkpoint57n_post
389    o adding precip control xx_precip 32
390    o adding swflux control xx_swflux 33
391    o Replacing 10 forcing penalty cost routines by 1 generic.
392    o Implementing partitioning in time-mean and variable adjustment
393      for atmos. state.
394    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
395  o in natl_box_adjoint:  o in natl_box_adjoint:
396    * updated: results_bulk/    * updated exp 1 to 10
397    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
398    o updated global1x1/*_seaice_adj/
399      to incorporate latest changes
400    o enable useSingleCpuIO for mdsio vector routines
401      (applies in particular to tapelev I/O)
402    o removed inefficient K-loop in all active_file*control*.F
403    
404  checkpoint57m_post  checkpoint57m_post
405  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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