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revision 1.913 by jmc, Wed Nov 28 16:52:16 2007 UTC revision 1.1006 by heimbach, Tue Jun 24 11:20:09 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61
8    o autodiff
9      Change default for TAF usage by removing argument '-nonew_arg'
10      This changes TAF subroutine argument list (ordering of active var.)
11      Omission of this flag leads to incompatibility w.r.t. TAMC
12      To restore TAMC-compatibility, need following modifs:
13      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
14      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
15      Tested TAF version is 1.9.22
16      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
17    
18    checkpoint60
19    --->>> This is the last checkpoint for which generating the adjoint
20    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
21    --->>> by default.
22    --->>> Future checkpoints will ommit this flag by default.
23    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
24    o pkg/grdchk: Add gradient check to etan0 perturbations.
25    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
26    o pkg/autodiff: more flexibility in zeroadj.
27      model/src: modifying do_oceanic_phys.F accordingly.
28    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
29    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
30      special setup of gmredi for which the adjoint is stable
31      enough for parameter optimization.
32    o bridging the gap between eddy stress and GM.
33      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
34          along with a change in CPP option (now ALLOW_EDDYPSI).
35      -> when using GM w/ GM_AdvForm:
36          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
37          is applied either in the tracer Eq. or in momentum Eq.
38          depending on data.gmredi (intro. GM_InMomAsStress).
39      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
40      The key modifications are in model/src/taueddy_external_forcing.F
41      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
42    
43    checkpoint59r
44    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
45      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
46      fix option to read coriolis(@ cell-corner) from files with CS-grid.
47    o pkg/mnc: add some attributes to standard 1D-coordinate variables
48    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
49      mass points, when using mnc for output
50      - add runtime parameter (missing_value, missing_value_int) to override
51        default (which is the value of getcon('UNDEF'))
52    o pkg/mnc: prepare mnc for the actual use of missing values with the
53      diagnostics package: small fix in mnc_cw_readwrite.template and more
54      initialisation of never used fields
55      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
56      versions
57    o pkg/thsice/thsice_ini_vars.F added default initial values so that
58      thermodynamics sea ice solver does not blow up when some initial fields
59      are missing.
60    o move from external_forcing_surf.F to ini_forcing.F
61      the p-coord. hack consisting in using pLoad to set phi0surf ;
62      update output of tutorial_global_oce_in_p (affected @ truncation level).
63    o Freshen up a bit hs94.1x64x5, notably:
64      remove rotationPeriod and tRef=5*0. (adjoint only), and add
65      exactConserv=.TRUE.
66    o pkg/generic_advdiff:
67      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
68      applies to files where Temperature & Salinity 2nd Order moments are used.
69    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
70      this uses a dynamically allocated internal state data structure
71      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
72      and requires a fortran 90 compiler
73    
74    checkpoint59q
75    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
76       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
77    o Refresh tutorial_global_oce_biogeo, notably:
78      - change bathymetry (put back seamounts in ACC, use hFacs)
79      - change EOS (POLY3 --> JMD95Z)
80      - use Bryan-Lewis vertical diffusivity
81      - use multidimensional advection
82      - remove old virtual virtual in dic pkg, now done through ptracer pkg
83      - change a couple of parameters in dic pkg
84    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
85    o pkg/obcs: change default to OBCSfixTopo = .true.,
86      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
87      - replace "debugMode" with "debugLevel .GE. debLevB"
88    o implementation of TAF directives for gchem,cfc,dic
89    o remove "exp5" (replaced by tutorial_deep_convection).
90    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
91      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
92      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
93      --> changes results in exp4, seaice_obcs
94    o tutorial_deep_convection :
95      update the set-up and increase resolution and domain size ; start
96      from pseudo initial conditions = output at t=120mn in order to see
97      something happening when running testreport.
98    o pkg/seaice: add os7mp as an advection scheme
99                  add check for advection schemes
100                  add a flag for restoring T and S underneath sea ice
101    o pkg/my82: add netcdf-support and diagnostics
102    o thsice pkg:
103      - Now hsMax limits snow height by turning it into ice following
104        flooding scheme (and now conserving energy)
105      - Slight rewriting of the formula in thsice_calc_thick.F
106      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
107      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
108    
109    checkpoint59p
110    o gchem / dic / cfc :
111      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
112      - add new parameter files: "data.dic" & "data.cfc" ;
113      - various re-arrangement in initialisation & header file ;
114      - fix tutorial_global_oce_biogeo for multi-threaded test.
115    o pkg/dic: test for "pickup_dic" file when restarting ;
116      if no pickup-file, can restart with a re-initialised pH (same as it did
117      before) providing pickupStrictlyMatch is set to False.
118    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
119      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
120    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
121      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
122    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
123     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
124       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
125    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
126       scheme to use for vorticty-term ;
127     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
128       (with default selectVortScheme, return to original discretisation)
129     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
130    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
131    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
132      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
133      also fix diagnostics VISCAHW & VISCA4W.
134    
135    checkpoint59o
136    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
137    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
138      move a few statemens out the main loop into separate loops
139    o pkg/shelfice:
140      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
141        (kg/m^2/s), does not break tests, because in verification/isomip,
142        rhoConstFresh=rhoConst (by accident)
143      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
144      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
145        new file model/src/seawater.F, so that they are available for all pkgs.
146      - convert potential temperature into in-situ temperature. This changes the
147        isomip tests => update tests
148    o add a flag writePickupAtEnd (default=true) to be able to suppress
149      writing a pickup at the last timestep
150    o tools/mpack-1.6 :
151      - disable automake (not working) and autoconf (not needed).
152      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
153        also cleaner with much less compilation warnings.
154    o pkg/profiles:
155      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
156      (for "less than 32 characters name" compiler requirement)
157    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
158      conditions that have a different sampling frequency than S/T/U/V obcs
159    o pkg/diagnostics (stats-diags):
160      - fix global Min/Max in case 1 processor get only empty tiles
161    o genmake2: replace (4 times)
162         make genmake_tc_1.o >> genmake_warnings 2>&1
163      with
164         COMM="$CC $CFLAGS -c genmake_tc_1.c"
165         echo $COMM >> genmake_warnings
166         $COMM >> genmake_warnings 2>&1
167      to make genmake2 always see the value of CC as specified in the optfile.
168    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
169      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
170      - modify verification advect_cs test to test SOM-advection on CS-grid.
171    o pkg/ctrl:
172      - Rewrite of ctrl_map_ini_ecco.F,
173        introducing a generic routine (ctrl_map_ini_gen.F).
174      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
175    
176    checkpoint59n
177    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
178      number in dedicate array "hdiag":
179      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
180        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
181      - many small changes (integer format) for large number of diagnostics
182      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
183        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
184    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
185      usingSphericalGrid, this allows to define the rotated grid coordinates
186      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
187      geographical coordinates according to the inverse of the rotation defined
188      by the Euler angles, so that Coriolis parameter and online-interpolation by
189      exf works with the geographical coordinates on XC/YC/XG/YG.
190      Naturally, this feature does not work with all packages, so some
191      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
192      profiles), because there the coordinates are assumed to be regular
193      spherical grid coordinates.
194    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
195      - introduce isopycnal diffusion coefficient control.
196    o tools/adjoint_options:
197      - additional control vector components.
198    o pkg/mnc: have mnc create marginally meaning full coordinate variables
199      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
200    o pkg/mypackage:
201      - add example of read/write pickup for state-var ;
202      - add entry points to the main code for state-vars diags & write-pickup.
203    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
204      transitions for useExfYearlyFields
205      - add new subroutine that determines the file to read from for
206        use*YearlyFields = .TRUE. and .FALSE.
207      - add a verification experiment to global_with_exf that tests
208        useExfYearlyFields with USE_EXF_INTERPOLATION defined
209    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
210      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
211      subroutines (which could be generated from a template, because they are
212      almost identical), for now they are included in obcs_prescribe_read.F for
213      simplicity
214    o pkg/exf:
215      - add a little more diagnostic to exf_interp_read (in analogy to
216        mds_read_field, can be turned off with debugLevel < debugLevA=1)
217      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
218        ugly but fast by unrolling short inner loops, inserting a unroll=8
219        directive in routine lagran, and splitting a loop and making do while the
220        outermost loop (the latter requires the intoduction of index arrays)
221    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
222    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
223      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
224    o verification/seaice_obcs: updated for restart test and latest options
225    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
226      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
227      for now this is only available for the C-grid code and also within
228      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
229    
230    checkpoint59m
231    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
232      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
233    o gad_som : fix flux output (& diagnostics) to have same units as other  
234      advection scheme fluxes (was previously multiplied by deltaT).  
235    o added verification/seaice_obcs both to test seaice open boundaries
236      and to provide an example matlab scrpt for generating them
237    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
238    o pkg/salt_plume: clean up salt_plume_frac.F to
239      remove redundancy in PlumeMethod 1 and 4
240    o pkg/kpp: added saltplume diagnostics
241    o pkg/obcs and pkg/seaice:
242      - do not set uice and vice to zero when OB*icefile are unspecified
243      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
244      - moved seaice tracer obcs after call to seaice_growth
245    o pkg/salt_plume: added various options for salt plume depth
246      criterion and for vertical distribution of the salt
247    
248    checkpoint59l
249    o pkg/ptracers: new version of ptracers pickup:
250      read meta file and write only fields which are needed to restart.
251      ( same logic as main pickup file ; also using pickupStrictlyMatch )
252    o pkg/seaice:
253      - add timescale for melting due to warm mixed layer as a means of
254        setting SEAICE_availHeatFrac more conveniently
255      - add a CPP-flag/runtime parameter check for flooding algorithm
256      - reformulated availHeat in seaice_growth.F to be independent of AREA
257    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
258      unit changes
259    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
260    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
261      SX vector computer.
262    o pkg/seaice:
263      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
264        seaice forcing fields can now be read only through pkg/exf
265      - removed some unused halos
266    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
267    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
268      or U/VICE from U/VWIND before computing U/VSTRESS
269    
270    checkpoint59k
271    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
272      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
273  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
274    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
275  o added pkg/salt_plume  o added pkg/salt_plume
276  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
277  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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