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revision 1.905 by mlosch, Wed Nov 7 11:13:21 2007 UTC revision 1.970 by jmc, Sat Apr 5 21:37:08 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
8      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
9    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
10     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
11       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
12    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
13       scheme to use for vorticty-term ;
14     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
15       (with default selectVortScheme, return to original discretisation)
16     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
17    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
18    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
19      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
20      also fix diagnostics VISCAHW & VISCA4W.
21    
22    checkpoint59o
23    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
24    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
25      move a few statemens out the main loop into separate loops
26    o pkg/shelfice:
27      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
28        (kg/m^2/s), does not break tests, because in verification/isomip,
29        rhoConstFresh=rhoConst (by accident)
30      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
31      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
32        new file model/src/seawater.F, so that they are available for all pkgs.
33      - convert potential temperature into in-situ temperature. This changes the
34        isomip tests => update tests
35    o add a flag writePickupAtEnd (default=true) to be able to suppress
36      writing a pickup at the last timestep
37    o tools/mpack-1.6 :
38      - disable automake (not working) and autoconf (not needed).
39      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
40        also cleaner with much less compilation warnings.
41    o pkg/profiles:
42      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
43      (for "less than 32 characters name" compiler requirement)
44    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
45      conditions that have a different sampling frequency than S/T/U/V obcs
46    o pkg/diagnostics (stats-diags):
47      - fix global Min/Max in case 1 processor get only empty tiles
48    o genmake2: replace (4 times)
49         make genmake_tc_1.o >> genmake_warnings 2>&1
50      with
51         COMM="$CC $CFLAGS -c genmake_tc_1.c"
52         echo $COMM >> genmake_warnings
53         $COMM >> genmake_warnings 2>&1
54      to make genmake2 always see the value of CC as specified in the optfile.
55    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
56      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
57      - modify verification advect_cs test to test SOM-advection on CS-grid.
58    o pkg/ctrl:
59      - Rewrite of ctrl_map_ini_ecco.F,
60        introducing a generic routine (ctrl_map_ini_gen.F).
61      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
62    
63    checkpoint59n
64    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
65      number in dedicate array "hdiag":
66      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
67        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
68      - many small changes (integer format) for large number of diagnostics
69      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
70        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
71    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
72      usingSphericalGrid, this allows to define the rotated grid coordinates
73      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
74      geographical coordinates according to the inverse of the rotation defined
75      by the Euler angles, so that Coriolis parameter and online-interpolation by
76      exf works with the geographical coordinates on XC/YC/XG/YG.
77      Naturally, this feature does not work with all packages, so some
78      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
79      profiles), because there the coordinates are assumed to be regular
80      spherical grid coordinates.
81    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
82      - introduce isopycnal diffusion coefficient control.
83    o tools/adjoint_options:
84      - additional control vector components.
85    o pkg/mnc: have mnc create marginally meaning full coordinate variables
86      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
87    o pkg/mypackage:
88      - add example of read/write pickup for state-var ;
89      - add entry points to the main code for state-vars diags & write-pickup.
90    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
91      transitions for useExfYearlyFields
92      - add new subroutine that determines the file to read from for
93        use*YearlyFields = .TRUE. and .FALSE.
94      - add a verification experiment to global_with_exf that tests
95        useExfYearlyFields with USE_EXF_INTERPOLATION defined
96    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
97      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
98      subroutines (which could be generated from a template, because they are
99      almost identical), for now they are included in obcs_prescribe_read.F for
100      simplicity
101    o pkg/exf:
102      - add a little more diagnostic to exf_interp_read (in analogy to
103        mds_read_field, can be turned off with debugLevel < debugLevA=1)
104      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
105        ugly but fast by unrolling short inner loops, inserting a unroll=8
106        directive in routine lagran, and splitting a loop and making do while the
107        outermost loop (the latter requires the intoduction of index arrays)
108    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
109    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
110      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
111    o verification/seaice_obcs: updated for restart test and latest options
112    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
113      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
114      for now this is only available for the C-grid code and also within
115      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
116    
117    checkpoint59m
118    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
119      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
120    o gad_som : fix flux output (& diagnostics) to have same units as other  
121      advection scheme fluxes (was previously multiplied by deltaT).  
122    o added verification/seaice_obcs both to test seaice open boundaries
123      and to provide an example matlab scrpt for generating them
124    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
125    o pkg/salt_plume: clean up salt_plume_frac.F to
126      remove redundancy in PlumeMethod 1 and 4
127    o pkg/kpp: added saltplume diagnostics
128    o pkg/obcs and pkg/seaice:
129      - do not set uice and vice to zero when OB*icefile are unspecified
130      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
131      - moved seaice tracer obcs after call to seaice_growth
132    o pkg/salt_plume: added various options for salt plume depth
133      criterion and for vertical distribution of the salt
134    
135    checkpoint59l
136    o pkg/ptracers: new version of ptracers pickup:
137      read meta file and write only fields which are needed to restart.
138      ( same logic as main pickup file ; also using pickupStrictlyMatch )
139    o pkg/seaice:
140      - add timescale for melting due to warm mixed layer as a means of
141        setting SEAICE_availHeatFrac more conveniently
142      - add a CPP-flag/runtime parameter check for flooding algorithm
143      - reformulated availHeat in seaice_growth.F to be independent of AREA
144    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
145      unit changes
146    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
147    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
148      SX vector computer.
149    o pkg/seaice:
150      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
151        seaice forcing fields can now be read only through pkg/exf
152      - removed some unused halos
153    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
154    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
155      or U/VICE from U/VWIND before computing U/VSTRESS
156    
157    checkpoint59k
158    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
159      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
160    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
161      all experiments pass when compile with un-initialised var. checking option.
162    o added pkg/salt_plume
163    o script to test restart (for now, in MITgcm_contrib/jmc_script)
164    o pkg/seaice: new read/write pickup version.
165      read meta file and write only fields which are needed to restart.
166      ( same logic as main pickup file ; also using pickupStrictlyMatch )
167    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
168    o lab_sea.hb87: modify the domain & update output.hb87.txt :
169      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
170      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
171      process. Fixed here by closing the domain at the Northern boundary.
172    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
173    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
174      a set of consecutive levels in/from a 3-D array.
175    o pkg/ptracers:
176      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
177      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
178    
179    checkpoint59j
180    o in pkgs: dic, obcs, offline, rbcs:
181      standard way to compute coeff. for time interpolation between 2 time reccords
182      which retains full precision (& make results less dependent on compiler).
183      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
184  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
185    packages instead of reading ice cover and wind speed separately    packages instead of reading ice cover and wind speed separately
186  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h

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