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revision 1.932 by dimitri, Sat Dec 22 17:44:49 2007 UTC revision 1.1017 by jmc, Fri Aug 22 16:06:54 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 added verification/lab_sea/input.salt_plume  o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
8    o new pkg: down_slope
9      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
10      - presently, modify T & S inland (dwnslp_calc_rho.F).
11        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
12      - implementation for ocean in P-coords not tested.
13      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
14    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
15      (to facilitate conversion of oceanic pkg to p-coordinate).
16    o change FIND_RHO to FIND_RHO_2D :
17      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
18    o new pkg: cheapaml
19    
20    checkpoint61b
21    o exch2:
22      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
23      - no longer depend on the order sequence (N,S,E,W).
24      - 3rd exchange no longer needed (tested with 24 tiles).
25      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
26      - exch_UV_A-grid readily available (but not yet tested).
27      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
28      (both are no longer needed) in exch_uv: no effect in forward run; but
29       get truncation error differences with adjoint exch.
30    o exch2:
31     - change index-bounds storage (moved from target to local tile,
32       more intuitive this way) ; rename/remove some variables.
33     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
34    
35    checkpoint61a
36    o exch2/matlab-topology-generator:
37      fix bug in index bounds for N-S internal exchange (hard to tell if this
38      had any effect on the solution).
39    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
40      is exceeded
41    o testreport: modify syntax of awk, so that it works also with
42      awk, and not only with nawk and gawk
43    
44    checkpoint61
45    o autodiff
46      Change default for TAF usage by removing argument '-nonew_arg'
47      This changes TAF subroutine argument list (ordering of active var.)
48      Omission of this flag leads to incompatibility w.r.t. TAMC
49      To restore TAMC-compatibility, need following modifs:
50      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
51      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
52      Tested TAF version is 1.9.22
53      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
54    
55    checkpoint60
56    --->>> This is the last checkpoint for which generating the adjoint
57    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
58    --->>> by default.
59    --->>> Future checkpoints will ommit this flag by default.
60    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
61    o pkg/grdchk: Add gradient check to etan0 perturbations.
62    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
63    o pkg/autodiff: more flexibility in zeroadj.
64      model/src: modifying do_oceanic_phys.F accordingly.
65    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
66    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
67      special setup of gmredi for which the adjoint is stable
68      enough for parameter optimization.
69    o bridging the gap between eddy stress and GM.
70      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
71          along with a change in CPP option (now ALLOW_EDDYPSI).
72      -> when using GM w/ GM_AdvForm:
73          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
74          is applied either in the tracer Eq. or in momentum Eq.
75          depending on data.gmredi (intro. GM_InMomAsStress).
76      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
77      The key modifications are in model/src/taueddy_external_forcing.F
78      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
79    
80    checkpoint59r
81    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
82      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
83      fix option to read coriolis(@ cell-corner) from files with CS-grid.
84    o pkg/mnc: add some attributes to standard 1D-coordinate variables
85    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
86      mass points, when using mnc for output
87      - add runtime parameter (missing_value, missing_value_int) to override
88        default (which is the value of getcon('UNDEF'))
89    o pkg/mnc: prepare mnc for the actual use of missing values with the
90      diagnostics package: small fix in mnc_cw_readwrite.template and more
91      initialisation of never used fields
92      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
93      versions
94    o pkg/thsice/thsice_ini_vars.F added default initial values so that
95      thermodynamics sea ice solver does not blow up when some initial fields
96      are missing.
97    o move from external_forcing_surf.F to ini_forcing.F
98      the p-coord. hack consisting in using pLoad to set phi0surf ;
99      update output of tutorial_global_oce_in_p (affected @ truncation level).
100    o Freshen up a bit hs94.1x64x5, notably:
101      remove rotationPeriod and tRef=5*0. (adjoint only), and add
102      exactConserv=.TRUE.
103    o pkg/generic_advdiff:
104      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
105      applies to files where Temperature & Salinity 2nd Order moments are used.
106    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
107      this uses a dynamically allocated internal state data structure
108      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
109      and requires a fortran 90 compiler
110    
111    checkpoint59q
112    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
113       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
114    o Refresh tutorial_global_oce_biogeo, notably:
115      - change bathymetry (put back seamounts in ACC, use hFacs)
116      - change EOS (POLY3 --> JMD95Z)
117      - use Bryan-Lewis vertical diffusivity
118      - use multidimensional advection
119      - remove old virtual virtual in dic pkg, now done through ptracer pkg
120      - change a couple of parameters in dic pkg
121    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
122    o pkg/obcs: change default to OBCSfixTopo = .true.,
123      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
124      - replace "debugMode" with "debugLevel .GE. debLevB"
125    o implementation of TAF directives for gchem,cfc,dic
126    o remove "exp5" (replaced by tutorial_deep_convection).
127    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
128      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
129      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
130      --> changes results in exp4, seaice_obcs
131    o tutorial_deep_convection :
132      update the set-up and increase resolution and domain size ; start
133      from pseudo initial conditions = output at t=120mn in order to see
134      something happening when running testreport.
135    o pkg/seaice: add os7mp as an advection scheme
136                  add check for advection schemes
137                  add a flag for restoring T and S underneath sea ice
138    o pkg/my82: add netcdf-support and diagnostics
139    o thsice pkg:
140      - Now hsMax limits snow height by turning it into ice following
141        flooding scheme (and now conserving energy)
142      - Slight rewriting of the formula in thsice_calc_thick.F
143      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
144      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
145    
146    checkpoint59p
147    o gchem / dic / cfc :
148      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
149      - add new parameter files: "data.dic" & "data.cfc" ;
150      - various re-arrangement in initialisation & header file ;
151      - fix tutorial_global_oce_biogeo for multi-threaded test.
152    o pkg/dic: test for "pickup_dic" file when restarting ;
153      if no pickup-file, can restart with a re-initialised pH (same as it did
154      before) providing pickupStrictlyMatch is set to False.
155    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
156      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
157    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
158      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
159    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
160     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
161       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
162    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
163       scheme to use for vorticty-term ;
164     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
165       (with default selectVortScheme, return to original discretisation)
166     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
167    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
168    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
169      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
170      also fix diagnostics VISCAHW & VISCA4W.
171    
172    checkpoint59o
173    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
174    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
175      move a few statemens out the main loop into separate loops
176    o pkg/shelfice:
177      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
178        (kg/m^2/s), does not break tests, because in verification/isomip,
179        rhoConstFresh=rhoConst (by accident)
180      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
181      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
182        new file model/src/seawater.F, so that they are available for all pkgs.
183      - convert potential temperature into in-situ temperature. This changes the
184        isomip tests => update tests
185    o add a flag writePickupAtEnd (default=true) to be able to suppress
186      writing a pickup at the last timestep
187    o tools/mpack-1.6 :
188      - disable automake (not working) and autoconf (not needed).
189      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
190        also cleaner with much less compilation warnings.
191    o pkg/profiles:
192      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
193      (for "less than 32 characters name" compiler requirement)
194    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
195      conditions that have a different sampling frequency than S/T/U/V obcs
196    o pkg/diagnostics (stats-diags):
197      - fix global Min/Max in case 1 processor get only empty tiles
198    o genmake2: replace (4 times)
199         make genmake_tc_1.o >> genmake_warnings 2>&1
200      with
201         COMM="$CC $CFLAGS -c genmake_tc_1.c"
202         echo $COMM >> genmake_warnings
203         $COMM >> genmake_warnings 2>&1
204      to make genmake2 always see the value of CC as specified in the optfile.
205    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
206      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
207      - modify verification advect_cs test to test SOM-advection on CS-grid.
208    o pkg/ctrl:
209      - Rewrite of ctrl_map_ini_ecco.F,
210        introducing a generic routine (ctrl_map_ini_gen.F).
211      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
212    
213    checkpoint59n
214    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
215      number in dedicate array "hdiag":
216      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
217        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
218      - many small changes (integer format) for large number of diagnostics
219      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
220        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
221    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
222      usingSphericalGrid, this allows to define the rotated grid coordinates
223      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
224      geographical coordinates according to the inverse of the rotation defined
225      by the Euler angles, so that Coriolis parameter and online-interpolation by
226      exf works with the geographical coordinates on XC/YC/XG/YG.
227      Naturally, this feature does not work with all packages, so some
228      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
229      profiles), because there the coordinates are assumed to be regular
230      spherical grid coordinates.
231    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
232      - introduce isopycnal diffusion coefficient control.
233    o tools/adjoint_options:
234      - additional control vector components.
235    o pkg/mnc: have mnc create marginally meaning full coordinate variables
236      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
237    o pkg/mypackage:
238      - add example of read/write pickup for state-var ;
239      - add entry points to the main code for state-vars diags & write-pickup.
240    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
241      transitions for useExfYearlyFields
242      - add new subroutine that determines the file to read from for
243        use*YearlyFields = .TRUE. and .FALSE.
244      - add a verification experiment to global_with_exf that tests
245        useExfYearlyFields with USE_EXF_INTERPOLATION defined
246    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
247      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
248      subroutines (which could be generated from a template, because they are
249      almost identical), for now they are included in obcs_prescribe_read.F for
250      simplicity
251    o pkg/exf:
252      - add a little more diagnostic to exf_interp_read (in analogy to
253        mds_read_field, can be turned off with debugLevel < debugLevA=1)
254      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
255        ugly but fast by unrolling short inner loops, inserting a unroll=8
256        directive in routine lagran, and splitting a loop and making do while the
257        outermost loop (the latter requires the intoduction of index arrays)
258    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
259    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
260      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
261    o verification/seaice_obcs: updated for restart test and latest options
262    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
263      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
264      for now this is only available for the C-grid code and also within
265      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
266    
267    checkpoint59m
268    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
269      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
270    o gad_som : fix flux output (& diagnostics) to have same units as other  
271      advection scheme fluxes (was previously multiplied by deltaT).  
272    o added verification/seaice_obcs both to test seaice open boundaries
273      and to provide an example matlab scrpt for generating them
274    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
275  o pkg/salt_plume: clean up salt_plume_frac.F to  o pkg/salt_plume: clean up salt_plume_frac.F to
276    remove redundancy in PlumeMethod 1 and 4    remove redundancy in PlumeMethod 1 and 4
277  o pkg/kpp: added saltplume diagnostics  o pkg/kpp: added saltplume diagnostics

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