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revision 1.301 by adcroft, Mon May 24 14:10:02 2004 UTC revision 1.362 by mlosch, Fri Oct 1 16:15:29 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o non-hydrostatic code
7      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
8        in calc_gw.F
9      - defaults to viscAh
10      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
11        friction or Leith) in non-hydrostatic mode, as long as there is
12        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
13    o pkg/cost
14      extend simple cost functions to treat time mean quantities
15      (T,U,V) via cost_accumulate_state from cost_tile
16    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
17        be 2 times larger than the minimum size the advection scheme requires.
18        now get a perfect conservation of salt in advect_cs test-exp (updated)
19    o GGL90 (Gaspar's TKE mixed layer)
20      - add horizontal diffusion of TKE, requires exchanges in
21        do_fields_blocking_exchanges, horizontal diffusivity is zero by
22        default. In OPA there is no horizontal diffusion of TKE but the
23        mixing coefficients are computed from a horizontal average of TKE of
24        6 points or so. I think that diffusion has a little more physical
25        justification.
26      - clean up ggl90_calc in the hope of reducing memory usage (this hope
27        was in vain)
28      - mask tke-variable in ggl90_init
29    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
30    o fix biharmonic diffusion on CS-grid.
31    o more obcs stuff
32      - added obcs_external_fields_load as an alternative to the EXF-pkg option
33        for reading boundary values. This routine is called from
34        obcs_prescribe_read
35      - updated obcs_check
36      - changed sponge layer relaxation parameter units for days to seconds
37      - turned off sponge layer by default
38      - changed argument list of OBCS_CALC to myTime+deltaTclock
39      - fixed about 35 bugs in obcs_external_fields_load
40    
41    checkpoint55c_post
42    o obcs stuff
43      - new runtime flags useOBCSprescribe, useOBCSbalance
44      - re-arranged obcs_calc
45      - moved exf_getobcs to obcs_prescibe_read
46        obcs_prescibe_read is called after ORLANSKI stuff
47        and independent of it (executable can contain all).
48      - updated obcs_check
49      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
50        These may be necessary only if tangential velocities are
51        prescribed at OB, not sure, needs testing.
52    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
53      which simplifies the calls and passes the ifc check-bounds test
54    
55    checkpoint55b_post
56    o add a 2D scalar, Z location, exchange_2 routine.
57    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
58      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
59      affects advect_cs results (for the wrong reason): update output.txt
60    o use a more standard discretization for biharmonic viscosity ;
61     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
62      affects results of dome set-up: update output.txt
63    o fix gad_advection.F (CubedSphere part), back to version 1.23
64    o fix bug in mom_vi_del2uv.F (CubedSphere part).
65    
66    checkpoint55a_post
67    o merged code to
68      * prescribe/read time-dependent open boundaries
69        (works in conjunction with exf, cal)
70      * sponge layer code for open boundaries
71      * each boundary N/S/E/W now has its own CPP option
72        (healthy for the adjoint)
73    
74    checkpoint55
75    o up-to-date adjoint of previous breaks
76      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
77      - global_ocean_ebm: adjoint still needs fix (TLM ok)
78      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
79      - carbon: * remove tr1-related adjoint verification
80                * add ptracer as control variable
81    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
82      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
83    
84    checkpoint54f_post
85    o in verification/carbin/ remove experiment related to
86      ALLOW_PASSIVE_TRACER (array tr1 etc)
87      code_ad/ input_ad/ results_ad
88    
89    o add two new packages
90      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
91        + subject to optimization (memory)
92      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
93        + subject to reordering (many GOTOs in the original code)
94        + so far opps is called for every (i,j) point, and then operates in
95          the vertical; one may want to reorder the scheme in order operate in
96          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
97          fields)
98    o overhaul of IO so that we now have flags for MDSIO and/or MNC
99      - all verification tests compile and run with linux_ia32_g77
100      - defaults are compatible with current input files--nothing
101        should change if you were not previously using MNC
102      - MNC output has been added in numerous places (eg. timeave)
103        but there are still a few writes not yet do-able with MNC
104        (this is in progress)
105      - flags now allow for either/or/both use of MDSIO and MNC and
106        documentation will soon follow
107      - numerous small formatting cleanups for ProTeX
108    o add version info (via BUILD_INFO.h) to MNC and stdout
109    
110    checkpoint54e_post
111    o add two new packages
112      - pp81 (Packanowski and Philander, 1981), Richardson number and
113        stratification dependent mixing
114      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
115      - these scheme operate in a similar manner as KPP (without ghat, of
116        course), however there is only one diffusivity that is used for both
117        temperature and salinity (and passive tracers)ç
118    o add offline package
119    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
120      provided by Stephanie Dutkiewicz
121    o genmake2: add ability to search for C compilers and cleanup test output
122      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
123    
124    checkpoint54d_post
125    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
126    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
127      leading to additional shift by 5 days each year of integration
128       (i.e. leading to considerable offset over the years)
129    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
130    o start with no AB and no initial filtering (staggerTimeStep):
131      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
132    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
133      (external loading & cpl import/export stay in forward_step.F)
134    o update coupling interface to work with new staggerTimeStep
135    o change MDSIO ptracers_pickup.
136    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
137    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
138    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
139    
140    checkpoint54c_post
141    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
142      this affects (truncation error) output.txt of test-exp:
143       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
144    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
145    o change Qnet to always be the net heat flux, (+upward).
146      affects (truncation error) output of natl_box exp.: updated
147    o define the max number of passive tracers in PTRACERS_SIZE.h
148    o start to test mnc routinely in exp0
149    o add sea-ice loading (sIceLoad) as a new forcing field.
150    
151    checkpoint54b_post
152    o add testreport "-j JOBS" option for parallel builds (tested and pretty
153       impressive on Altix and Opteron systems)
154    o diagnostics can now write NetCDF files through the mnc package
155    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
156    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
157    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
158      affects (truncation error) output of lab_sea & natl_box exp.: updated
159    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
160    
161    checkpoint54a_post
162    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
163    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
164    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
165    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
166      + internal_wave (shift in writing cg2d_ini_res)
167    checkpoint54a_pre
168    
169    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
170      - modified verification/lab_sea and natl_box_adjoint accordingly
171    
172    checkpoint54
173    checkpoint53g_post
174    o prepare splitting of thermodynamics: store convect.counter in common block
175    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
176      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
177    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
178    o new parameter "nShapS": allow to treat differently S from T (nShapT)
179    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
180    o restore adjointability
181    
182    checkpoint53f_post
183    o modifications that affect AIM experiment results (update output.txt):
184      - no advection of S at top interface Nr (pkg/generic_advdiff)
185      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
186    o AIM pkg:
187      - include stability function into surf.Flux derivative relative to Tsurf
188      - calculate clear-sky radiation & surface temp. change (for diagnostics)
189    
190    checkpoint53e_post
191    o merged cylindrical coord configuration
192    o added rotating_tank experiment
193    checkpoint53e_pre
194    
195    checkpoint53d_post
196    o faulks upgraded: re-generate output.txt that have changed:
197       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
198    o Added Bryan and Lewis, 1979, vertical diffusivity profile
199    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
200    o added Sadourny discretization of Coriolis
201      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
202      - re-enabled use of omega3 (useAbsVorticity)
203    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
204      vector-invariant equations
205      - note: does *NOT* yet use same variable visc. for no-slip BC's.
206    o recoded the lateral boundary conditions for non-hydrostatic w, this time
207      hopefully without new bugs
208      - still to do: biharmonic friction for non-hydrostatic w
209    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
210    o regenerated output for global_ocean_ebm (using -ieee)
211  o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation  o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
212    of mom_common/    of mom_common/
213    - simple re-arrangement of instructions within computing loop    - simple re-arrangement of instructions within computing loop

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