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revision 1.939 by mlosch, Wed Jan 16 09:48:41 2008 UTC revision 1.1023 by jmc, Tue Sep 16 21:24:26 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 gad_som : allow to switch to SOM advection for T & S without corresponding
8      pickup files (using new S/R: MDS_CHECK4FILE).
9    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
10      (for useSingleCpuIO to work in multi-threaded)
11    o pkg/shelfice:
12     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
13       with SHELFICEtopoFile in data.shelfice
14     - move code for reading ice shelf topography and modifying hFacC into separate
15       subroutines of the shelfice package
16     - separate initialisation of "fixed" and "variable" variables
17     - kTopC is not (yet) replaced by kSurfC, although this is possible
18    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
19    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
20      and rename:
21      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
22      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
23    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
24    
25    checkpoint61c
26    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
27      to add mass source/sink of fluid in the interior (3-D generalisation
28      of oceanic real-fresh water flux).
29    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
30    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
31    o new pkg: down_slope
32      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
33      - presently, modify T & S inland (dwnslp_calc_rho.F).
34        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
35      - implementation for ocean in P-coords not tested.
36      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
37    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
38      (to facilitate conversion of oceanic pkg to p-coordinate).
39    o change FIND_RHO to FIND_RHO_2D :
40      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
41    o new pkg: cheapaml
42    
43    checkpoint61b
44    o exch2:
45      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
46      - no longer depend on the order sequence (N,S,E,W).
47      - 3rd exchange no longer needed (tested with 24 tiles).
48      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
49      - exch_UV_A-grid readily available (but not yet tested).
50      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
51      (both are no longer needed) in exch_uv: no effect in forward run; but
52       get truncation error differences with adjoint exch.
53    o exch2:
54     - change index-bounds storage (moved from target to local tile,
55       more intuitive this way) ; rename/remove some variables.
56     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
57    
58    checkpoint61a
59    o exch2/matlab-topology-generator:
60      fix bug in index bounds for N-S internal exchange (hard to tell if this
61      had any effect on the solution).
62    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
63      is exceeded
64    o testreport: modify syntax of awk, so that it works also with
65      awk, and not only with nawk and gawk
66    
67    checkpoint61
68    o autodiff
69      Change default for TAF usage by removing argument '-nonew_arg'
70      This changes TAF subroutine argument list (ordering of active var.)
71      Omission of this flag leads to incompatibility w.r.t. TAMC
72      To restore TAMC-compatibility, need following modifs:
73      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
74      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
75      Tested TAF version is 1.9.22
76      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
77    
78    checkpoint60
79    --->>> This is the last checkpoint for which generating the adjoint
80    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
81    --->>> by default.
82    --->>> Future checkpoints will ommit this flag by default.
83    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
84    o pkg/grdchk: Add gradient check to etan0 perturbations.
85    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
86    o pkg/autodiff: more flexibility in zeroadj.
87      model/src: modifying do_oceanic_phys.F accordingly.
88    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
89    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
90      special setup of gmredi for which the adjoint is stable
91      enough for parameter optimization.
92    o bridging the gap between eddy stress and GM.
93      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
94          along with a change in CPP option (now ALLOW_EDDYPSI).
95      -> when using GM w/ GM_AdvForm:
96          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
97          is applied either in the tracer Eq. or in momentum Eq.
98          depending on data.gmredi (intro. GM_InMomAsStress).
99      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
100      The key modifications are in model/src/taueddy_external_forcing.F
101      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
102    
103    checkpoint59r
104    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
105      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
106      fix option to read coriolis(@ cell-corner) from files with CS-grid.
107    o pkg/mnc: add some attributes to standard 1D-coordinate variables
108    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
109      mass points, when using mnc for output
110      - add runtime parameter (missing_value, missing_value_int) to override
111        default (which is the value of getcon('UNDEF'))
112    o pkg/mnc: prepare mnc for the actual use of missing values with the
113      diagnostics package: small fix in mnc_cw_readwrite.template and more
114      initialisation of never used fields
115      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
116      versions
117    o pkg/thsice/thsice_ini_vars.F added default initial values so that
118      thermodynamics sea ice solver does not blow up when some initial fields
119      are missing.
120    o move from external_forcing_surf.F to ini_forcing.F
121      the p-coord. hack consisting in using pLoad to set phi0surf ;
122      update output of tutorial_global_oce_in_p (affected @ truncation level).
123    o Freshen up a bit hs94.1x64x5, notably:
124      remove rotationPeriod and tRef=5*0. (adjoint only), and add
125      exactConserv=.TRUE.
126    o pkg/generic_advdiff:
127      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
128      applies to files where Temperature & Salinity 2nd Order moments are used.
129    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
130      this uses a dynamically allocated internal state data structure
131      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
132      and requires a fortran 90 compiler
133    
134    checkpoint59q
135    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
136       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
137    o Refresh tutorial_global_oce_biogeo, notably:
138      - change bathymetry (put back seamounts in ACC, use hFacs)
139      - change EOS (POLY3 --> JMD95Z)
140      - use Bryan-Lewis vertical diffusivity
141      - use multidimensional advection
142      - remove old virtual virtual in dic pkg, now done through ptracer pkg
143      - change a couple of parameters in dic pkg
144    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
145    o pkg/obcs: change default to OBCSfixTopo = .true.,
146      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
147      - replace "debugMode" with "debugLevel .GE. debLevB"
148    o implementation of TAF directives for gchem,cfc,dic
149    o remove "exp5" (replaced by tutorial_deep_convection).
150    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
151      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
152      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
153      --> changes results in exp4, seaice_obcs
154    o tutorial_deep_convection :
155      update the set-up and increase resolution and domain size ; start
156      from pseudo initial conditions = output at t=120mn in order to see
157      something happening when running testreport.
158    o pkg/seaice: add os7mp as an advection scheme
159                  add check for advection schemes
160                  add a flag for restoring T and S underneath sea ice
161    o pkg/my82: add netcdf-support and diagnostics
162    o thsice pkg:
163      - Now hsMax limits snow height by turning it into ice following
164        flooding scheme (and now conserving energy)
165      - Slight rewriting of the formula in thsice_calc_thick.F
166      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
167      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
168    
169    checkpoint59p
170    o gchem / dic / cfc :
171      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
172      - add new parameter files: "data.dic" & "data.cfc" ;
173      - various re-arrangement in initialisation & header file ;
174      - fix tutorial_global_oce_biogeo for multi-threaded test.
175    o pkg/dic: test for "pickup_dic" file when restarting ;
176      if no pickup-file, can restart with a re-initialised pH (same as it did
177      before) providing pickupStrictlyMatch is set to False.
178    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
179      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
180    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
181      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
182    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
183     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
184       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
185    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
186       scheme to use for vorticty-term ;
187     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
188       (with default selectVortScheme, return to original discretisation)
189     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
190    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
191    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
192      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
193      also fix diagnostics VISCAHW & VISCA4W.
194    
195    checkpoint59o
196    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
197    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
198      move a few statemens out the main loop into separate loops
199    o pkg/shelfice:
200      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
201        (kg/m^2/s), does not break tests, because in verification/isomip,
202        rhoConstFresh=rhoConst (by accident)
203      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
204      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
205        new file model/src/seawater.F, so that they are available for all pkgs.
206      - convert potential temperature into in-situ temperature. This changes the
207        isomip tests => update tests
208    o add a flag writePickupAtEnd (default=true) to be able to suppress
209      writing a pickup at the last timestep
210    o tools/mpack-1.6 :
211      - disable automake (not working) and autoconf (not needed).
212      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
213        also cleaner with much less compilation warnings.
214    o pkg/profiles:
215      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
216      (for "less than 32 characters name" compiler requirement)
217    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
218      conditions that have a different sampling frequency than S/T/U/V obcs
219    o pkg/diagnostics (stats-diags):
220      - fix global Min/Max in case 1 processor get only empty tiles
221    o genmake2: replace (4 times)
222         make genmake_tc_1.o >> genmake_warnings 2>&1
223      with
224         COMM="$CC $CFLAGS -c genmake_tc_1.c"
225         echo $COMM >> genmake_warnings
226         $COMM >> genmake_warnings 2>&1
227      to make genmake2 always see the value of CC as specified in the optfile.
228    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
229      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
230      - modify verification advect_cs test to test SOM-advection on CS-grid.
231    o pkg/ctrl:
232      - Rewrite of ctrl_map_ini_ecco.F,
233        introducing a generic routine (ctrl_map_ini_gen.F).
234      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
235    
236    checkpoint59n
237    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
238      number in dedicate array "hdiag":
239      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
240        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
241      - many small changes (integer format) for large number of diagnostics
242      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
243        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
244    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
245      usingSphericalGrid, this allows to define the rotated grid coordinates
246      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
247      geographical coordinates according to the inverse of the rotation defined
248      by the Euler angles, so that Coriolis parameter and online-interpolation by
249      exf works with the geographical coordinates on XC/YC/XG/YG.
250      Naturally, this feature does not work with all packages, so some
251      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
252      profiles), because there the coordinates are assumed to be regular
253      spherical grid coordinates.
254    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
255      - introduce isopycnal diffusion coefficient control.
256    o tools/adjoint_options:
257      - additional control vector components.
258    o pkg/mnc: have mnc create marginally meaning full coordinate variables
259      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
260    o pkg/mypackage:
261      - add example of read/write pickup for state-var ;
262      - add entry points to the main code for state-vars diags & write-pickup.
263    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
264      transitions for useExfYearlyFields
265      - add new subroutine that determines the file to read from for
266        use*YearlyFields = .TRUE. and .FALSE.
267      - add a verification experiment to global_with_exf that tests
268        useExfYearlyFields with USE_EXF_INTERPOLATION defined
269    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
270      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
271      subroutines (which could be generated from a template, because they are
272      almost identical), for now they are included in obcs_prescribe_read.F for
273      simplicity
274    o pkg/exf:
275      - add a little more diagnostic to exf_interp_read (in analogy to
276        mds_read_field, can be turned off with debugLevel < debugLevA=1)
277      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
278        ugly but fast by unrolling short inner loops, inserting a unroll=8
279        directive in routine lagran, and splitting a loop and making do while the
280        outermost loop (the latter requires the intoduction of index arrays)
281    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
282    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
283      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
284    o verification/seaice_obcs: updated for restart test and latest options
285  o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different  o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
286    ice rheology (so-called truncated ellipse, that gets rid of tensile stress);    ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
287    for now this is only available for the C-grid code and also within    for now this is only available for the C-grid code and also within

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