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revision 1.589 by jmc, Thu Dec 8 22:25:07 2005 UTC revision 1.639 by heimbach, Thu Mar 23 23:08:09 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 new code to compute profile cost
8      by Gael Forget
9      (modifs in ecco, ctrl, autodiff)
10    
11    checkpoint58c_post
12    o adjoint: finish NLFS adjoint and provide reference output in
13      verification/global_ocean.90x40x15/results_ad_nlfs
14    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
15      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
16      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
17      with SEAICE_CGRID defined.
18    o move calendarDumps from "data" to "data.cal" and clean-up the code
19      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
20    o add useEXF & useCAL flags (for now, set in hard-coded way)
21    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
22      (were missing in NH mode, and wrong in quasihydrostatic mode).
23      waiting for Chris updated version of calc_gw to add those CALLs.
24    o fix bug in quasihydrostatic S/R ;
25      add a test for this option: global_ocean.90x40x15.qshyd
26    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
27      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
28    o add on/off flag useOffLine for package OFFLINE
29    o seaice:
30      - modify advection so that it works also on the C-grid
31      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
32        problem in multi-tile runs with C-grid
33      - add flags for clipping ice velocities and/or masking solver forcing
34      - fix drag (ocean on ice) formulation and a bug that caused noise in the
35        C-grid solver
36      - added a few comments to seaice_diffusion.F
37      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
38        are now exclusive)
39      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
40        required re-ordering the code a little:
41       + make DAIRN global variable (defined in SEAICE)
42       + move computation of the viscosities eta and zeta into a new separate
43         routine (because I need to recompute them in seaice_ocean_stress.F)
44    
45    checkpoint58b_post
46    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
47      update output.txt of exp. aim.5l_cs.thSI
48    o various mnc cleanups and improvements:
49      + shrink lookup tables by factor of ~4
50      + better error reporting when running out of lookup space
51      + able to handle longer path/file names (up to 500 chars)
52    o adjoint:
53      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
54      - TBD: "hidden" mom_vecinv recomp. in dynamics
55    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
56     (allow to differentiate between forcing components using new integer flags:
57      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
58     and add new flag to put Dissipation tendency out of Adams-Bashforth.
59    o ecco
60      - enable trend removal from SSH anomaly obs.
61    o adjoint
62      - a fix for PmEpR when #undef EXACT_CONSERV
63      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
64      - try to fix "hidden" recomp. in forward_step for NLFS
65        (NLFS seems broken sometimes after I checked it in)
66    o seaice:
67     - add c-grid version of the dynamic solver:
68       + three new routines that are the c-grid substitute lsr, dynsolver
69         and ostres
70       + put a few fields that were local to dynsolver into global common
71         blocks, so that I can move the computation of stresses etc into
72         seaice_lsr (saves coding but may break the adjoint).
73     - replace more hardwired parameters by runtime parameters
74     - add ice masks that mask the rhs of the implicit solvers where there
75       is no ice (commented out in seaice_dynsolver, because i am not sure
76       if this works properly), eventually this should replace the clipping
77       of ice velocities in seaice_dynsolver to +/-40cm/s.
78    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
79      include it only where its needed
80    o move balancing of fluxes before the call of external_forcing_surf
81    o seaice:
82      - correct units of turning angles (now they are really in degrees)
83      - move computation of GWATX/Y out of main routine into dynsolver
84      - initialize GWATX/Y in seaice_init
85    o Apply mask on Fresh-Water flux (needed for SSH forcing).
86      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
87    o seaice: add runtime flags for turning angles (default to zero)
88    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
89      and trend from exf forcing and ctrl control adjustments
90    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
91      (since checkpoint57x_post)
92    o change the default rotation period to 86164.s = the Earth rotation
93    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
94      and based on a reference stratification. Tested within hs94.cs-32x32x5.
95    o seaice advection: add code for choosing between the default (2nd order
96      central differences) and multiDim advection schemes provided by
97      pkg/generic_advdiff
98    o seaice:
99      - removed all references to SEAICE_GRID.h fields from
100        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
101        (cubed-sphere configuration will change a little)
102      - grid computations in seaice_init are obsolete now.
103      - cleaned up code a little so that is easier to read (hopefully).
104      - added new (better?) discretizations of default advection and diffusion
105        (turn on with SEAICEuseFluxForm)
106      - replace 1 in 3d global fields by kSurface in growth.F
107      
108    checkpoint58a_post
109    o seaice:
110      - bug fix in advect.F
111    o shelfice:
112      - separate shelfice load anomaly from pload (breaks with time
113        dependent forcing), => introduce constant field shelficeLoadAnomaly.
114        Its default is 0., but it may be computed more cleverly from (unknown)
115        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
116        done offline. A good approximation of the pressure load anomaly is
117        necessary to avoid large initial adjustment processes underneath
118        deep-reaching shelfice.
119      - small fix in ISOMIP shelfice_thermodynamics
120      - add more sophisticated thermodynamics of Hellmer (1989), this is
121        now the default
122      - give a few constants more intuitive names
123    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
124      if bulk formulae are used in long integration (especially EmPmR). Turn
125      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
126      if balancePrintMean, the imbalance that is substracted is printed to
127      STDOUT.
128    o fix bug (typo) in obcs_apply_eta.F
129    o add a new package shelfice which enables us to model the circulation
130      underneath shelf-ice with draughts of hundreds of meters.
131     - works
132     - to do: + include improved thermodynamics
133              + check whether kSurfC (from model/inc/SURFACE.h) can be used
134                instead of new field kTopC
135              + can we use topoFile, Ro_surf and existing code in ini_depth.F
136                instead of new field R_shelfIce and new code in ini_depth.F
137                and ini_mask_etc.F?
138              + adjust vertical mixing schemes?
139    o seaice pkg:
140     - add a cpp-flag to include a simple formula for a salinity dependent
141       freezing point of sea water at the surface
142     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
143       meridional stresses are now different (and hopefully correct)
144    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
145       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
146       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
147    o pkg/diagnostics: add options and parameters for regional-statistics
148       diagnostics ; define regions by reading a region-mask from a file
149       (might add other options later)
150    o pkg/bulk_force:
151     - add option and parameters to use AIM surface-flux formulae.
152     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
153       others forcing fields (defined in PARM05, parameter file "data") are loaded
154       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
155     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
156     - use the right EXCH call for uwind,vwind (to work on CS-grid).
157     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
158       and parameters (note: calcWindStress replaces .NOT.readwindstress).
159     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
160    
161    checkpoint58
162    o add "--embed-source" option to genmake2 which, when the supporting
163      tools can be compiled (as determined by genmake2) will turn on the
164      embed_files package which then embeds the entire MITgcm source code
165      (*.[fFhc] + Makefile) used for the build within the executable
166      - requested by CNH but off by default
167      - adds a paltry <9MB to the mitgcmuv executable in most cases
168      - only writes the output when useEMBEDSRC in eedata is true
169    o clean up 3-dim. relaxation codes:
170      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
171      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
172      * Thanks to Tom Haine for testing!
173    
174    checkpoint57z_post
175    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
176      affects output (@ truncation level) of exp. plume_on_slope ; updated.
177    o fix the pickup behavior for obcs in combination with ptracers
178    o fix a bug in ptracers_external_fields_load
179    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
180      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
181    o transfered surface NH pressure to eta field (if exactConserv).
182  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
183       and update lab_sea output.txt file.       and update lab_sea output.txt file.
184    o completing 3-dim. relaxation code: additional term
185         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
186      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
187      * At compile time, in "EXF_OPTIONS.h" set
188          #define  ALLOW_CLIMTEMP_RELAXATION
189          #define  ALLOW_CLIMSALT_RELAXATION
190      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
191          tauThetaClimRelax3Dim = 15552000.0,
192          tauSaltClimRelax3Dim  = 15552000.0,
193      * 3 cases:
194          1) Use a constant-in-time 3-dim. field
195          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
196          3) Real-time relax. to time-evolving prescribed field
197    o Adding Laplacian-type smoothness constraint on
198      initial and boundary (forcing) controls (ic, bc)
199      * enable at compile-time via
200        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
201      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
202      * Absolute scale somewhat unclear so far
203      * no area weighting was included since no other cost term does so far
204    
205  checkpoint57y_post  checkpoint57y_post
206  First step for a NLFS adjoint  First step for a NLFS adjoint

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