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revision 1.603 by mlosch, Fri Jan 27 20:19:12 2006 UTC revision 1.664 by jmc, Mon Jun 5 15:06:51 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 pkg: add a cpp-flag to include a simple formula for a salinity  checkpoint58f_post
8    depend freezing point of sea water at the surface  o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
9      to pkg/seaice):
10      - new routines thsice_map_exf and thsice_get_exf provide the interface
11      - add an additional formal parameter to thsice_solve4temp
12    o pkg/exf:
13      - add new fields wspeed, snowprecip (to be able to couple to thsice)
14      - correct Stefan-Boltzmann constant
15      - new parameter for longwave surface emittance
16      - separate some stuff from exf_bulkformulae into new routines  
17        exf_radiation, exf_wind
18      - add new parameters and constants: longwave emissivity for ocean, ice
19        and snow, evaporation parameters over ice
20      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
21        either wind from stress or stress from wind
22    o pkg/thSIce:
23    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
24    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
25       and THSICE_CALC_THICKN
26    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
27    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
28      to make debugging easier.
29    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
30    o pkg/bulk_force:
31      - clean-up comments and parameters ;
32      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
33    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
34      generate new output for test-experiment: aim.5l_cs.thSI
35    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
36      testreport accordingly
37    
38    checkpoint58e_post
39    o SEAICE_CGRID adjoint done
40    o R_STAR adjoint implemented.
41      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
42      * need to sort out init. of h0facc, etc.
43    o Make pkg/profile fully independent of ecco,cost, etc. stuff
44      to be able to use it in pure forward.
45    
46    checkpoint58d_post
47    o upgrade simple test-experiment to tutorial example:
48     step.1: duplicate the experiment and (step.2) will remove the old copy.
49      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
50      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
51      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
52      tutorial_global_oce_biogeo    <- copy of dic_example
53      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
54      tutorial_plume_on_slope       <- copy of plume_on_slope
55      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
56      tutorial_global_oce_optim     <- empty for now (David ?)
57      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
58     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
59    o correct a sign problem in cost_scat.F
60    o obcs and ptracers: fix boundary conditions for advections schemes
61      with larger stencil
62    o thsice adjoint: start
63    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
64      completeness
65    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
66      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
67    o ptracers adjoint:
68      * avoid extensive recomputatations
69      * fix missing re-init. of gptr (missed by TAF)
70    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
71      me to turn off the excessive output to STDOUT that this package produces
72    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
73      and add those terms in Vector-Invariant formulation.
74    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
75      if the control period (xx_hfluxperiod etc) is 0
76    o in profiles pkg, clean routines and fix details
77    o in ecco pkg, reading ssh data:
78      fix problem in case the model does not start at iter0=0
79    o fix mnc-pickup/restart for ptracers
80    o new package prifiles:
81      code to compute profile-based cost by Gael Forget
82      (modifs in ecco, ctrl, autodiff)
83    o Benign bug fix in initialization (spotted by M. Mazloff) of
84      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
85    
86    checkpoint58c_post
87    o adjoint: finish NLFS adjoint and provide reference output in
88      verification/global_ocean.90x40x15/results_ad_nlfs
89    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
90      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
91      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
92      with SEAICE_CGRID defined.
93    o move calendarDumps from "data" to "data.cal" and clean-up the code
94      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
95    o add useEXF & useCAL flags (for now, set in hard-coded way)
96    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
97      (were missing in NH mode, and wrong in quasihydrostatic mode).
98      waiting for Chris updated version of calc_gw to add those CALLs.
99    o fix bug in quasihydrostatic S/R ;
100      add a test for this option: global_ocean.90x40x15.qshyd
101    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
102      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
103    o add on/off flag useOffLine for package OFFLINE
104    o seaice:
105      - modify advection so that it works also on the C-grid
106      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
107        problem in multi-tile runs with C-grid
108      - add flags for clipping ice velocities and/or masking solver forcing
109      - fix drag (ocean on ice) formulation and a bug that caused noise in the
110        C-grid solver
111      - added a few comments to seaice_diffusion.F
112      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
113        are now exclusive)
114      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
115        required re-ordering the code a little:
116       + make DAIRN global variable (defined in SEAICE)
117       + move computation of the viscosities eta and zeta into a new separate
118         routine (because I need to recompute them in seaice_ocean_stress.F)
119    
120    checkpoint58b_post
121    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
122      update output.txt of exp. aim.5l_cs.thSI
123    o various mnc cleanups and improvements:
124      + shrink lookup tables by factor of ~4
125      + better error reporting when running out of lookup space
126      + able to handle longer path/file names (up to 500 chars)
127    o adjoint:
128      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
129      - TBD: "hidden" mom_vecinv recomp. in dynamics
130    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
131     (allow to differentiate between forcing components using new integer flags:
132      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
133     and add new flag to put Dissipation tendency out of Adams-Bashforth.
134    o ecco
135      - enable trend removal from SSH anomaly obs.
136    o adjoint
137      - a fix for PmEpR when #undef EXACT_CONSERV
138      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
139      - try to fix "hidden" recomp. in forward_step for NLFS
140        (NLFS seems broken sometimes after I checked it in)
141    o seaice:
142     - add c-grid version of the dynamic solver:
143       + three new routines that are the c-grid substitute lsr, dynsolver
144         and ostres
145       + put a few fields that were local to dynsolver into global common
146         blocks, so that I can move the computation of stresses etc into
147         seaice_lsr (saves coding but may break the adjoint).
148     - replace more hardwired parameters by runtime parameters
149     - add ice masks that mask the rhs of the implicit solvers where there
150       is no ice (commented out in seaice_dynsolver, because i am not sure
151       if this works properly), eventually this should replace the clipping
152       of ice velocities in seaice_dynsolver to +/-40cm/s.
153    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
154      include it only where its needed
155    o move balancing of fluxes before the call of external_forcing_surf
156    o seaice:
157      - correct units of turning angles (now they are really in degrees)
158      - move computation of GWATX/Y out of main routine into dynsolver
159      - initialize GWATX/Y in seaice_init
160    o Apply mask on Fresh-Water flux (needed for SSH forcing).
161      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
162    o seaice: add runtime flags for turning angles (default to zero)
163    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
164      and trend from exf forcing and ctrl control adjustments
165    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
166      (since checkpoint57x_post)
167    o change the default rotation period to 86164.s = the Earth rotation
168    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
169      and based on a reference stratification. Tested within hs94.cs-32x32x5.
170    o seaice advection: add code for choosing between the default (2nd order
171      central differences) and multiDim advection schemes provided by
172      pkg/generic_advdiff
173    o seaice:
174      - removed all references to SEAICE_GRID.h fields from
175        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
176        (cubed-sphere configuration will change a little)
177      - grid computations in seaice_init are obsolete now.
178      - cleaned up code a little so that is easier to read (hopefully).
179      - added new (better?) discretizations of default advection and diffusion
180        (turn on with SEAICEuseFluxForm)
181      - replace 1 in 3d global fields by kSurface in growth.F
182      
183    checkpoint58a_post
184    o seaice:
185      - bug fix in advect.F
186    o shelfice:
187      - separate shelfice load anomaly from pload (breaks with time
188        dependent forcing), => introduce constant field shelficeLoadAnomaly.
189        Its default is 0., but it may be computed more cleverly from (unknown)
190        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
191        done offline. A good approximation of the pressure load anomaly is
192        necessary to avoid large initial adjustment processes underneath
193        deep-reaching shelfice.
194      - small fix in ISOMIP shelfice_thermodynamics
195      - add more sophisticated thermodynamics of Hellmer (1989), this is
196        now the default
197      - give a few constants more intuitive names
198    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
199      if bulk formulae are used in long integration (especially EmPmR). Turn
200      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
201      if balancePrintMean, the imbalance that is substracted is printed to
202      STDOUT.
203    o fix bug (typo) in obcs_apply_eta.F
204    o add a new package shelfice which enables us to model the circulation
205      underneath shelf-ice with draughts of hundreds of meters.
206     - works
207     - to do: + include improved thermodynamics
208              + check whether kSurfC (from model/inc/SURFACE.h) can be used
209                instead of new field kTopC
210              + can we use topoFile, Ro_surf and existing code in ini_depth.F
211                instead of new field R_shelfIce and new code in ini_depth.F
212                and ini_mask_etc.F?
213              + adjust vertical mixing schemes?
214    o seaice pkg:
215     - add a cpp-flag to include a simple formula for a salinity dependent
216       freezing point of sea water at the surface
217     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
218       meridional stresses are now different (and hopefully correct)
219  o AIM pkg: change threshold on large-scale condensation to conserve Heat.  o AIM pkg: change threshold on large-scale condensation to conserve Heat.
220     update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics     update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
221     and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)     and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)

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