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revision 1.595 by heimbach, Thu Dec 22 21:16:17 2005 UTC revision 1.650 by gforget, Wed Apr 19 19:43:10 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 correct a sign problem in cost_scat.F
8    o obcs and ptracers: fix boundary conditions for advections schemes
9      with larger stencil
10    o thsice adjoint: start
11    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
12      completeness
13    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
14      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
15    o ptracers adjoint:
16      * avoid extensive recomputatations
17      * fix missing re-init. of gptr (missed by TAF)
18    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
19      me to turn off the excessive output to STDOUT that this package produces
20    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
21      and add those terms in Vector-Invariant formulation.
22    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
23      if the control period (xx_hfluxperiod etc) is 0
24    o in profiles pkg, clean routines and fix details
25    o in ecco pkg, reading ssh data:
26      fix problem in case the model does not start at iter0=0
27    o fix mnc-pickup/restart for ptracers
28    o new package prifiles:
29      code to compute profile-based cost by Gael Forget
30      (modifs in ecco, ctrl, autodiff)
31    o Benign bug fix in initialization (spotted by M. Mazloff) of
32      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
33    
34    checkpoint58c_post
35    o adjoint: finish NLFS adjoint and provide reference output in
36      verification/global_ocean.90x40x15/results_ad_nlfs
37    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
38      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
39      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
40      with SEAICE_CGRID defined.
41    o move calendarDumps from "data" to "data.cal" and clean-up the code
42      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
43    o add useEXF & useCAL flags (for now, set in hard-coded way)
44    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
45      (were missing in NH mode, and wrong in quasihydrostatic mode).
46      waiting for Chris updated version of calc_gw to add those CALLs.
47    o fix bug in quasihydrostatic S/R ;
48      add a test for this option: global_ocean.90x40x15.qshyd
49    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
50      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
51    o add on/off flag useOffLine for package OFFLINE
52    o seaice:
53      - modify advection so that it works also on the C-grid
54      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
55        problem in multi-tile runs with C-grid
56      - add flags for clipping ice velocities and/or masking solver forcing
57      - fix drag (ocean on ice) formulation and a bug that caused noise in the
58        C-grid solver
59      - added a few comments to seaice_diffusion.F
60      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
61        are now exclusive)
62      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
63        required re-ordering the code a little:
64       + make DAIRN global variable (defined in SEAICE)
65       + move computation of the viscosities eta and zeta into a new separate
66         routine (because I need to recompute them in seaice_ocean_stress.F)
67    
68    checkpoint58b_post
69    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
70      update output.txt of exp. aim.5l_cs.thSI
71    o various mnc cleanups and improvements:
72      + shrink lookup tables by factor of ~4
73      + better error reporting when running out of lookup space
74      + able to handle longer path/file names (up to 500 chars)
75    o adjoint:
76      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
77      - TBD: "hidden" mom_vecinv recomp. in dynamics
78    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
79     (allow to differentiate between forcing components using new integer flags:
80      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
81     and add new flag to put Dissipation tendency out of Adams-Bashforth.
82    o ecco
83      - enable trend removal from SSH anomaly obs.
84    o adjoint
85      - a fix for PmEpR when #undef EXACT_CONSERV
86      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
87      - try to fix "hidden" recomp. in forward_step for NLFS
88        (NLFS seems broken sometimes after I checked it in)
89    o seaice:
90     - add c-grid version of the dynamic solver:
91       + three new routines that are the c-grid substitute lsr, dynsolver
92         and ostres
93       + put a few fields that were local to dynsolver into global common
94         blocks, so that I can move the computation of stresses etc into
95         seaice_lsr (saves coding but may break the adjoint).
96     - replace more hardwired parameters by runtime parameters
97     - add ice masks that mask the rhs of the implicit solvers where there
98       is no ice (commented out in seaice_dynsolver, because i am not sure
99       if this works properly), eventually this should replace the clipping
100       of ice velocities in seaice_dynsolver to +/-40cm/s.
101    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
102      include it only where its needed
103    o move balancing of fluxes before the call of external_forcing_surf
104    o seaice:
105      - correct units of turning angles (now they are really in degrees)
106      - move computation of GWATX/Y out of main routine into dynsolver
107      - initialize GWATX/Y in seaice_init
108    o Apply mask on Fresh-Water flux (needed for SSH forcing).
109      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
110    o seaice: add runtime flags for turning angles (default to zero)
111    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
112      and trend from exf forcing and ctrl control adjustments
113    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
114      (since checkpoint57x_post)
115    o change the default rotation period to 86164.s = the Earth rotation
116    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
117      and based on a reference stratification. Tested within hs94.cs-32x32x5.
118    o seaice advection: add code for choosing between the default (2nd order
119      central differences) and multiDim advection schemes provided by
120      pkg/generic_advdiff
121    o seaice:
122      - removed all references to SEAICE_GRID.h fields from
123        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
124        (cubed-sphere configuration will change a little)
125      - grid computations in seaice_init are obsolete now.
126      - cleaned up code a little so that is easier to read (hopefully).
127      - added new (better?) discretizations of default advection and diffusion
128        (turn on with SEAICEuseFluxForm)
129      - replace 1 in 3d global fields by kSurface in growth.F
130      
131    checkpoint58a_post
132    o seaice:
133      - bug fix in advect.F
134    o shelfice:
135      - separate shelfice load anomaly from pload (breaks with time
136        dependent forcing), => introduce constant field shelficeLoadAnomaly.
137        Its default is 0., but it may be computed more cleverly from (unknown)
138        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
139        done offline. A good approximation of the pressure load anomaly is
140        necessary to avoid large initial adjustment processes underneath
141        deep-reaching shelfice.
142      - small fix in ISOMIP shelfice_thermodynamics
143      - add more sophisticated thermodynamics of Hellmer (1989), this is
144        now the default
145      - give a few constants more intuitive names
146    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
147      if bulk formulae are used in long integration (especially EmPmR). Turn
148      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
149      if balancePrintMean, the imbalance that is substracted is printed to
150      STDOUT.
151    o fix bug (typo) in obcs_apply_eta.F
152    o add a new package shelfice which enables us to model the circulation
153      underneath shelf-ice with draughts of hundreds of meters.
154     - works
155     - to do: + include improved thermodynamics
156              + check whether kSurfC (from model/inc/SURFACE.h) can be used
157                instead of new field kTopC
158              + can we use topoFile, Ro_surf and existing code in ini_depth.F
159                instead of new field R_shelfIce and new code in ini_depth.F
160                and ini_mask_etc.F?
161              + adjust vertical mixing schemes?
162    o seaice pkg:
163     - add a cpp-flag to include a simple formula for a salinity dependent
164       freezing point of sea water at the surface
165     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
166       meridional stresses are now different (and hopefully correct)
167    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
168       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
169       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
170    o pkg/diagnostics: add options and parameters for regional-statistics
171       diagnostics ; define regions by reading a region-mask from a file
172       (might add other options later)
173    o pkg/bulk_force:
174     - add option and parameters to use AIM surface-flux formulae.
175     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
176       others forcing fields (defined in PARM05, parameter file "data") are loaded
177       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
178     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
179     - use the right EXCH call for uwind,vwind (to work on CS-grid).
180     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
181       and parameters (note: calcWindStress replaces .NOT.readwindstress).
182     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
183    
184    checkpoint58
185    o add "--embed-source" option to genmake2 which, when the supporting
186      tools can be compiled (as determined by genmake2) will turn on the
187      embed_files package which then embeds the entire MITgcm source code
188      (*.[fFhc] + Makefile) used for the build within the executable
189      - requested by CNH but off by default
190      - adds a paltry <9MB to the mitgcmuv executable in most cases
191      - only writes the output when useEMBEDSRC in eedata is true
192    o clean up 3-dim. relaxation codes:
193      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
194      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
195      * Thanks to Tom Haine for testing!
196    
197    checkpoint57z_post
198  o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):  o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
199    affects output (@ truncation level) of exp. plume_on_slope ; updated.    affects output (@ truncation level) of exp. plume_on_slope ; updated.
200  o fix the pickup behavior for obcs in combination with ptracers  o fix the pickup behavior for obcs in combination with ptracers

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