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revision 1.913 by jmc, Wed Nov 28 16:52:16 2007 UTC revision 1.1003 by jmc, Mon Jun 16 14:08:55 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 pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
8    o pkg/grdchk: Add gradient check to etan0 perturbations.
9    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
10    o pkg/autodiff: more flexibility in zeroadj.
11      model/src: modifying do_oceanic_phys.F accordingly.
12    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
13    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
14      special setup of gmredi for which the adjoint is stable
15      enough for parameter optimization.
16    o bridging the gap between eddy stress and GM.
17      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
18          along with a change in CPP option (now ALLOW_EDDYPSI).
19      -> when using GM w/ GM_AdvForm:
20          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
21          is applied either in the tracer Eq. or in momentum Eq.
22          depending on data.gmredi (intro. GM_InMomAsStress).
23      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
24      The key modifications are in model/src/taueddy_external_forcing.F
25      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
26    
27    checkpoint59r
28    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
29      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
30      fix option to read coriolis(@ cell-corner) from files with CS-grid.
31    o pkg/mnc: add some attributes to standard 1D-coordinate variables
32    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
33      mass points, when using mnc for output
34      - add runtime parameter (missing_value, missing_value_int) to override
35        default (which is the value of getcon('UNDEF'))
36    o pkg/mnc: prepare mnc for the actual use of missing values with the
37      diagnostics package: small fix in mnc_cw_readwrite.template and more
38      initialisation of never used fields
39      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
40      versions
41    o pkg/thsice/thsice_ini_vars.F added default initial values so that
42      thermodynamics sea ice solver does not blow up when some initial fields
43      are missing.
44    o move from external_forcing_surf.F to ini_forcing.F
45      the p-coord. hack consisting in using pLoad to set phi0surf ;
46      update output of tutorial_global_oce_in_p (affected @ truncation level).
47    o Freshen up a bit hs94.1x64x5, notably:
48      remove rotationPeriod and tRef=5*0. (adjoint only), and add
49      exactConserv=.TRUE.
50    o pkg/generic_advdiff:
51      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
52      applies to files where Temperature & Salinity 2nd Order moments are used.
53    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
54      this uses a dynamically allocated internal state data structure
55      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
56      and requires a fortran 90 compiler
57    
58    checkpoint59q
59    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
60       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
61    o Refresh tutorial_global_oce_biogeo, notably:
62      - change bathymetry (put back seamounts in ACC, use hFacs)
63      - change EOS (POLY3 --> JMD95Z)
64      - use Bryan-Lewis vertical diffusivity
65      - use multidimensional advection
66      - remove old virtual virtual in dic pkg, now done through ptracer pkg
67      - change a couple of parameters in dic pkg
68    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
69    o pkg/obcs: change default to OBCSfixTopo = .true.,
70      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
71      - replace "debugMode" with "debugLevel .GE. debLevB"
72    o implementation of TAF directives for gchem,cfc,dic
73    o remove "exp5" (replaced by tutorial_deep_convection).
74    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
75      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
76      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
77      --> changes results in exp4, seaice_obcs
78    o tutorial_deep_convection :
79      update the set-up and increase resolution and domain size ; start
80      from pseudo initial conditions = output at t=120mn in order to see
81      something happening when running testreport.
82    o pkg/seaice: add os7mp as an advection scheme
83                  add check for advection schemes
84                  add a flag for restoring T and S underneath sea ice
85    o pkg/my82: add netcdf-support and diagnostics
86    o thsice pkg:
87      - Now hsMax limits snow height by turning it into ice following
88        flooding scheme (and now conserving energy)
89      - Slight rewriting of the formula in thsice_calc_thick.F
90      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
91      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
92    
93    checkpoint59p
94    o gchem / dic / cfc :
95      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
96      - add new parameter files: "data.dic" & "data.cfc" ;
97      - various re-arrangement in initialisation & header file ;
98      - fix tutorial_global_oce_biogeo for multi-threaded test.
99    o pkg/dic: test for "pickup_dic" file when restarting ;
100      if no pickup-file, can restart with a re-initialised pH (same as it did
101      before) providing pickupStrictlyMatch is set to False.
102    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
103      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
104    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
105      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
106    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
107     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
108       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
109    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
110       scheme to use for vorticty-term ;
111     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
112       (with default selectVortScheme, return to original discretisation)
113     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
114    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
115    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
116      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
117      also fix diagnostics VISCAHW & VISCA4W.
118    
119    checkpoint59o
120    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
121    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
122      move a few statemens out the main loop into separate loops
123    o pkg/shelfice:
124      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
125        (kg/m^2/s), does not break tests, because in verification/isomip,
126        rhoConstFresh=rhoConst (by accident)
127      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
128      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
129        new file model/src/seawater.F, so that they are available for all pkgs.
130      - convert potential temperature into in-situ temperature. This changes the
131        isomip tests => update tests
132    o add a flag writePickupAtEnd (default=true) to be able to suppress
133      writing a pickup at the last timestep
134    o tools/mpack-1.6 :
135      - disable automake (not working) and autoconf (not needed).
136      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
137        also cleaner with much less compilation warnings.
138    o pkg/profiles:
139      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
140      (for "less than 32 characters name" compiler requirement)
141    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
142      conditions that have a different sampling frequency than S/T/U/V obcs
143    o pkg/diagnostics (stats-diags):
144      - fix global Min/Max in case 1 processor get only empty tiles
145    o genmake2: replace (4 times)
146         make genmake_tc_1.o >> genmake_warnings 2>&1
147      with
148         COMM="$CC $CFLAGS -c genmake_tc_1.c"
149         echo $COMM >> genmake_warnings
150         $COMM >> genmake_warnings 2>&1
151      to make genmake2 always see the value of CC as specified in the optfile.
152    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
153      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
154      - modify verification advect_cs test to test SOM-advection on CS-grid.
155    o pkg/ctrl:
156      - Rewrite of ctrl_map_ini_ecco.F,
157        introducing a generic routine (ctrl_map_ini_gen.F).
158      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
159    
160    checkpoint59n
161    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
162      number in dedicate array "hdiag":
163      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
164        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
165      - many small changes (integer format) for large number of diagnostics
166      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
167        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
168    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
169      usingSphericalGrid, this allows to define the rotated grid coordinates
170      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
171      geographical coordinates according to the inverse of the rotation defined
172      by the Euler angles, so that Coriolis parameter and online-interpolation by
173      exf works with the geographical coordinates on XC/YC/XG/YG.
174      Naturally, this feature does not work with all packages, so some
175      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
176      profiles), because there the coordinates are assumed to be regular
177      spherical grid coordinates.
178    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
179      - introduce isopycnal diffusion coefficient control.
180    o tools/adjoint_options:
181      - additional control vector components.
182    o pkg/mnc: have mnc create marginally meaning full coordinate variables
183      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
184    o pkg/mypackage:
185      - add example of read/write pickup for state-var ;
186      - add entry points to the main code for state-vars diags & write-pickup.
187    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
188      transitions for useExfYearlyFields
189      - add new subroutine that determines the file to read from for
190        use*YearlyFields = .TRUE. and .FALSE.
191      - add a verification experiment to global_with_exf that tests
192        useExfYearlyFields with USE_EXF_INTERPOLATION defined
193    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
194      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
195      subroutines (which could be generated from a template, because they are
196      almost identical), for now they are included in obcs_prescribe_read.F for
197      simplicity
198    o pkg/exf:
199      - add a little more diagnostic to exf_interp_read (in analogy to
200        mds_read_field, can be turned off with debugLevel < debugLevA=1)
201      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
202        ugly but fast by unrolling short inner loops, inserting a unroll=8
203        directive in routine lagran, and splitting a loop and making do while the
204        outermost loop (the latter requires the intoduction of index arrays)
205    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
206    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
207      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
208    o verification/seaice_obcs: updated for restart test and latest options
209    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
210      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
211      for now this is only available for the C-grid code and also within
212      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
213    
214    checkpoint59m
215    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
216      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
217    o gad_som : fix flux output (& diagnostics) to have same units as other  
218      advection scheme fluxes (was previously multiplied by deltaT).  
219    o added verification/seaice_obcs both to test seaice open boundaries
220      and to provide an example matlab scrpt for generating them
221    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
222    o pkg/salt_plume: clean up salt_plume_frac.F to
223      remove redundancy in PlumeMethod 1 and 4
224    o pkg/kpp: added saltplume diagnostics
225    o pkg/obcs and pkg/seaice:
226      - do not set uice and vice to zero when OB*icefile are unspecified
227      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
228      - moved seaice tracer obcs after call to seaice_growth
229    o pkg/salt_plume: added various options for salt plume depth
230      criterion and for vertical distribution of the salt
231    
232    checkpoint59l
233    o pkg/ptracers: new version of ptracers pickup:
234      read meta file and write only fields which are needed to restart.
235      ( same logic as main pickup file ; also using pickupStrictlyMatch )
236    o pkg/seaice:
237      - add timescale for melting due to warm mixed layer as a means of
238        setting SEAICE_availHeatFrac more conveniently
239      - add a CPP-flag/runtime parameter check for flooding algorithm
240      - reformulated availHeat in seaice_growth.F to be independent of AREA
241    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
242      unit changes
243    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
244    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
245      SX vector computer.
246    o pkg/seaice:
247      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
248        seaice forcing fields can now be read only through pkg/exf
249      - removed some unused halos
250    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
251    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
252      or U/VICE from U/VWIND before computing U/VSTRESS
253    
254    checkpoint59k
255    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
256      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
257  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
258    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
259  o added pkg/salt_plume  o added pkg/salt_plume
260  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
261  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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