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revision 1.583 by jmc, Sun Dec 4 22:14:06 2005 UTC revision 1.622 by mlosch, Mon Mar 6 13:18:16 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 seaice:
8     - add c-grid version of the dynamic solver:
9       + three new routines that are the c-grid substitute lsr, dynsolver
10         and ostres
11       + put a few fields that were local to dynsolver into global common
12         blocks, so that I can move the computation of stresses etc into
13         seaice_lsr (saves coding but may break the adjoint).
14     - replace more hardwired parameters by runtime parameters
15     - add ice masks that mask the rhs of the implicit solvers where there
16       is no ice (commented out in seaice_dynsolver, because i am not sure
17       if this works properly), eventually this should replace the clipping
18       of ice velocities in seaice_dynsolver to +/-40cm/s.
19    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
20      include it only where its needed
21    o move balancing of fluxes before the call of external_forcing_surf
22    o seaice:
23      - correct units of turning angles (now they are really in degrees)
24      - move computation of GWATX/Y out of main routine into dynsolver
25      - initialize GWATX/Y in seaice_init
26    o Apply mask on Fresh-Water flux (needed for SSH forcing).
27      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
28    o seaice: add runtime flags for turning angles (default to zero)
29    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
30      and trend from exf forcing and ctrl control adjustments
31    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
32      (since checkpoint57x_post)
33    o change the default rotation period to 86164.s = the Earth rotation
34    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
35      and based on a reference stratification. Tested within hs94.cs-32x32x5.
36    o seaice advection: add code for choosing between the default (2nd order
37      central differences) and multiDim advection schemes provided by
38      pkg/generic_advdiff
39    o seaice:
40      - removed all references to SEAICE_GRID.h fields from
41        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
42        (cubed-sphere configuration will change a little)
43      - grid computations in seaice_init are obsolete now.
44      - cleaned up code a little so that is easier to read (hopefully).
45      - added new (better?) discretizations of default advection and diffusion
46        (turn on with SEAICEuseFluxForm)
47      - replace 1 in 3d global fields by kSurface in growth.F
48      
49    checkpoint58a_post
50    o seaice:
51      - bug fix in advect.F
52    o shelfice:
53      - separate shelfice load anomaly from pload (breaks with time
54        dependent forcing), => introduce constant field shelficeLoadAnomaly.
55        Its default is 0., but it may be computed more cleverly from (unknown)
56        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
57        done offline. A good approximation of the pressure load anomaly is
58        necessary to avoid large initial adjustment processes underneath
59        deep-reaching shelfice.
60      - small fix in ISOMIP shelfice_thermodynamics
61      - add more sophisticated thermodynamics of Hellmer (1989), this is
62        now the default
63      - give a few constants more intuitive names
64    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
65      if bulk formulae are used in long integration (especially EmPmR). Turn
66      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
67      if balancePrintMean, the imbalance that is substracted is printed to
68      STDOUT.
69    o fix bug (typo) in obcs_apply_eta.F
70    o add a new package shelfice which enables us to model the circulation
71      underneath shelf-ice with draughts of hundreds of meters.
72     - works
73     - to do: + include improved thermodynamics
74              + check whether kSurfC (from model/inc/SURFACE.h) can be used
75                instead of new field kTopC
76              + can we use topoFile, Ro_surf and existing code in ini_depth.F
77                instead of new field R_shelfIce and new code in ini_depth.F
78                and ini_mask_etc.F?
79              + adjust vertical mixing schemes?
80    o seaice pkg:
81     - add a cpp-flag to include a simple formula for a salinity dependent
82       freezing point of sea water at the surface
83     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
84       meridional stresses are now different (and hopefully correct)
85    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
86       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
87       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
88    o pkg/diagnostics: add options and parameters for regional-statistics
89       diagnostics ; define regions by reading a region-mask from a file
90       (might add other options later)
91    o pkg/bulk_force:
92     - add option and parameters to use AIM surface-flux formulae.
93     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
94       others forcing fields (defined in PARM05, parameter file "data") are loaded
95       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
96     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
97     - use the right EXCH call for uwind,vwind (to work on CS-grid).
98     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
99       and parameters (note: calcWindStress replaces .NOT.readwindstress).
100     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
101    
102    checkpoint58
103    o add "--embed-source" option to genmake2 which, when the supporting
104      tools can be compiled (as determined by genmake2) will turn on the
105      embed_files package which then embeds the entire MITgcm source code
106      (*.[fFhc] + Makefile) used for the build within the executable
107      - requested by CNH but off by default
108      - adds a paltry <9MB to the mitgcmuv executable in most cases
109      - only writes the output when useEMBEDSRC in eedata is true
110    o clean up 3-dim. relaxation codes:
111      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
112      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
113      * Thanks to Tom Haine for testing!
114    
115    checkpoint57z_post
116    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
117      affects output (@ truncation level) of exp. plume_on_slope ; updated.
118    o fix the pickup behavior for obcs in combination with ptracers
119    o fix a bug in ptracers_external_fields_load
120    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
121      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
122    o transfered surface NH pressure to eta field (if exactConserv).
123    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
124         and update lab_sea output.txt file.
125    o completing 3-dim. relaxation code: additional term
126         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
127      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
128      * At compile time, in "EXF_OPTIONS.h" set
129          #define  ALLOW_CLIMTEMP_RELAXATION
130          #define  ALLOW_CLIMSALT_RELAXATION
131      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
132          tauThetaClimRelax3Dim = 15552000.0,
133          tauSaltClimRelax3Dim  = 15552000.0,
134      * 3 cases:
135          1) Use a constant-in-time 3-dim. field
136          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
137          3) Real-time relax. to time-evolving prescribed field
138    o Adding Laplacian-type smoothness constraint on
139      initial and boundary (forcing) controls (ic, bc)
140      * enable at compile-time via
141        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
142      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
143      * Absolute scale somewhat unclear so far
144      * no area weighting was included since no other cost term does so far
145    
146    checkpoint57y_post
147    First step for a NLFS adjoint
148    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
149    o new init. routines for calc_r_star, calc_surf_dr
150    o still need to deal with ini_masks_etc
151    o testreport seemed happy
152    checkpoint57y_pre
153    
154    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
155    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
156    o add new offset feature to offline pkg (plus minor cleanup)
157    o cfc fixes for final year of integration
158    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
159      be in GCHEM_OPTIONS).
160    
161  checkpoint57x_post  checkpoint57x_post
162  o fix testreport Pb in multiple test experiment.  o fix testreport Pb in multiple test experiment.
163  o cleanup our namelist syntax in verification:  o cleanup our namelist syntax in verification:

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