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revision 1.926 by jmc, Tue Dec 18 02:01:41 2007 UTC revision 1.1009 by jmc, Mon Jul 28 21:23:29 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 exch2/matlab-topology-generator:
8      fix bug in index bounds for N-S internal exchange (hard to tell if this
9      had any effect on the solution).
10    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
11      is exceeded
12    o testreport: modify syntax of awk, so that it works also with
13      awk, and not only with nawk and gawk
14    
15    checkpoint61
16    o autodiff
17      Change default for TAF usage by removing argument '-nonew_arg'
18      This changes TAF subroutine argument list (ordering of active var.)
19      Omission of this flag leads to incompatibility w.r.t. TAMC
20      To restore TAMC-compatibility, need following modifs:
21      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
22      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
23      Tested TAF version is 1.9.22
24      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
25    
26    checkpoint60
27    --->>> This is the last checkpoint for which generating the adjoint
28    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
29    --->>> by default.
30    --->>> Future checkpoints will ommit this flag by default.
31    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
32    o pkg/grdchk: Add gradient check to etan0 perturbations.
33    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
34    o pkg/autodiff: more flexibility in zeroadj.
35      model/src: modifying do_oceanic_phys.F accordingly.
36    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
37    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
38      special setup of gmredi for which the adjoint is stable
39      enough for parameter optimization.
40    o bridging the gap between eddy stress and GM.
41      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
42          along with a change in CPP option (now ALLOW_EDDYPSI).
43      -> when using GM w/ GM_AdvForm:
44          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
45          is applied either in the tracer Eq. or in momentum Eq.
46          depending on data.gmredi (intro. GM_InMomAsStress).
47      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
48      The key modifications are in model/src/taueddy_external_forcing.F
49      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
50    
51    checkpoint59r
52    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
53      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
54      fix option to read coriolis(@ cell-corner) from files with CS-grid.
55    o pkg/mnc: add some attributes to standard 1D-coordinate variables
56    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
57      mass points, when using mnc for output
58      - add runtime parameter (missing_value, missing_value_int) to override
59        default (which is the value of getcon('UNDEF'))
60    o pkg/mnc: prepare mnc for the actual use of missing values with the
61      diagnostics package: small fix in mnc_cw_readwrite.template and more
62      initialisation of never used fields
63      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
64      versions
65    o pkg/thsice/thsice_ini_vars.F added default initial values so that
66      thermodynamics sea ice solver does not blow up when some initial fields
67      are missing.
68    o move from external_forcing_surf.F to ini_forcing.F
69      the p-coord. hack consisting in using pLoad to set phi0surf ;
70      update output of tutorial_global_oce_in_p (affected @ truncation level).
71    o Freshen up a bit hs94.1x64x5, notably:
72      remove rotationPeriod and tRef=5*0. (adjoint only), and add
73      exactConserv=.TRUE.
74    o pkg/generic_advdiff:
75      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
76      applies to files where Temperature & Salinity 2nd Order moments are used.
77    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
78      this uses a dynamically allocated internal state data structure
79      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
80      and requires a fortran 90 compiler
81    
82    checkpoint59q
83    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
84       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
85    o Refresh tutorial_global_oce_biogeo, notably:
86      - change bathymetry (put back seamounts in ACC, use hFacs)
87      - change EOS (POLY3 --> JMD95Z)
88      - use Bryan-Lewis vertical diffusivity
89      - use multidimensional advection
90      - remove old virtual virtual in dic pkg, now done through ptracer pkg
91      - change a couple of parameters in dic pkg
92    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
93    o pkg/obcs: change default to OBCSfixTopo = .true.,
94      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
95      - replace "debugMode" with "debugLevel .GE. debLevB"
96    o implementation of TAF directives for gchem,cfc,dic
97    o remove "exp5" (replaced by tutorial_deep_convection).
98    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
99      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
100      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
101      --> changes results in exp4, seaice_obcs
102    o tutorial_deep_convection :
103      update the set-up and increase resolution and domain size ; start
104      from pseudo initial conditions = output at t=120mn in order to see
105      something happening when running testreport.
106    o pkg/seaice: add os7mp as an advection scheme
107                  add check for advection schemes
108                  add a flag for restoring T and S underneath sea ice
109    o pkg/my82: add netcdf-support and diagnostics
110    o thsice pkg:
111      - Now hsMax limits snow height by turning it into ice following
112        flooding scheme (and now conserving energy)
113      - Slight rewriting of the formula in thsice_calc_thick.F
114      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
115      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
116    
117    checkpoint59p
118    o gchem / dic / cfc :
119      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
120      - add new parameter files: "data.dic" & "data.cfc" ;
121      - various re-arrangement in initialisation & header file ;
122      - fix tutorial_global_oce_biogeo for multi-threaded test.
123    o pkg/dic: test for "pickup_dic" file when restarting ;
124      if no pickup-file, can restart with a re-initialised pH (same as it did
125      before) providing pickupStrictlyMatch is set to False.
126    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
127      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
128    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
129      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
130    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
131     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
132       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
133    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
134       scheme to use for vorticty-term ;
135     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
136       (with default selectVortScheme, return to original discretisation)
137     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
138    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
139    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
140      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
141      also fix diagnostics VISCAHW & VISCA4W.
142    
143    checkpoint59o
144    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
145    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
146      move a few statemens out the main loop into separate loops
147    o pkg/shelfice:
148      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
149        (kg/m^2/s), does not break tests, because in verification/isomip,
150        rhoConstFresh=rhoConst (by accident)
151      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
152      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
153        new file model/src/seawater.F, so that they are available for all pkgs.
154      - convert potential temperature into in-situ temperature. This changes the
155        isomip tests => update tests
156    o add a flag writePickupAtEnd (default=true) to be able to suppress
157      writing a pickup at the last timestep
158    o tools/mpack-1.6 :
159      - disable automake (not working) and autoconf (not needed).
160      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
161        also cleaner with much less compilation warnings.
162    o pkg/profiles:
163      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
164      (for "less than 32 characters name" compiler requirement)
165    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
166      conditions that have a different sampling frequency than S/T/U/V obcs
167    o pkg/diagnostics (stats-diags):
168      - fix global Min/Max in case 1 processor get only empty tiles
169    o genmake2: replace (4 times)
170         make genmake_tc_1.o >> genmake_warnings 2>&1
171      with
172         COMM="$CC $CFLAGS -c genmake_tc_1.c"
173         echo $COMM >> genmake_warnings
174         $COMM >> genmake_warnings 2>&1
175      to make genmake2 always see the value of CC as specified in the optfile.
176    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
177      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
178      - modify verification advect_cs test to test SOM-advection on CS-grid.
179    o pkg/ctrl:
180      - Rewrite of ctrl_map_ini_ecco.F,
181        introducing a generic routine (ctrl_map_ini_gen.F).
182      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
183    
184    checkpoint59n
185    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
186      number in dedicate array "hdiag":
187      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
188        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
189      - many small changes (integer format) for large number of diagnostics
190      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
191        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
192    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
193      usingSphericalGrid, this allows to define the rotated grid coordinates
194      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
195      geographical coordinates according to the inverse of the rotation defined
196      by the Euler angles, so that Coriolis parameter and online-interpolation by
197      exf works with the geographical coordinates on XC/YC/XG/YG.
198      Naturally, this feature does not work with all packages, so some
199      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
200      profiles), because there the coordinates are assumed to be regular
201      spherical grid coordinates.
202    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
203      - introduce isopycnal diffusion coefficient control.
204    o tools/adjoint_options:
205      - additional control vector components.
206    o pkg/mnc: have mnc create marginally meaning full coordinate variables
207      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
208    o pkg/mypackage:
209      - add example of read/write pickup for state-var ;
210      - add entry points to the main code for state-vars diags & write-pickup.
211    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
212      transitions for useExfYearlyFields
213      - add new subroutine that determines the file to read from for
214        use*YearlyFields = .TRUE. and .FALSE.
215      - add a verification experiment to global_with_exf that tests
216        useExfYearlyFields with USE_EXF_INTERPOLATION defined
217    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
218      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
219      subroutines (which could be generated from a template, because they are
220      almost identical), for now they are included in obcs_prescribe_read.F for
221      simplicity
222    o pkg/exf:
223      - add a little more diagnostic to exf_interp_read (in analogy to
224        mds_read_field, can be turned off with debugLevel < debugLevA=1)
225      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
226        ugly but fast by unrolling short inner loops, inserting a unroll=8
227        directive in routine lagran, and splitting a loop and making do while the
228        outermost loop (the latter requires the intoduction of index arrays)
229    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
230    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
231      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
232    o verification/seaice_obcs: updated for restart test and latest options
233    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
234      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
235      for now this is only available for the C-grid code and also within
236      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
237    
238    checkpoint59m
239    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
240      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
241    o gad_som : fix flux output (& diagnostics) to have same units as other  
242      advection scheme fluxes (was previously multiplied by deltaT).  
243    o added verification/seaice_obcs both to test seaice open boundaries
244      and to provide an example matlab scrpt for generating them
245    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
246    o pkg/salt_plume: clean up salt_plume_frac.F to
247      remove redundancy in PlumeMethod 1 and 4
248    o pkg/kpp: added saltplume diagnostics
249    o pkg/obcs and pkg/seaice:
250      - do not set uice and vice to zero when OB*icefile are unspecified
251      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
252      - moved seaice tracer obcs after call to seaice_growth
253    o pkg/salt_plume: added various options for salt plume depth
254      criterion and for vertical distribution of the salt
255    
256  checkpoint59l  checkpoint59l
257  o pkg/ptracers: new version of ptracers pickup:  o pkg/ptracers: new version of ptracers pickup:
258    read meta file and write only fields which are needed to restart.    read meta file and write only fields which are needed to restart.

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