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revision 1.906 by jmc, Thu Nov 8 23:01:44 2007 UTC revision 1.1007 by mlosch, Thu Jun 26 14:43:25 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 testreport: modify syntax of awk, so that it works also with
8      awk, and not only with nawk and gawk
9    
10    checkpoint61
11    o autodiff
12      Change default for TAF usage by removing argument '-nonew_arg'
13      This changes TAF subroutine argument list (ordering of active var.)
14      Omission of this flag leads to incompatibility w.r.t. TAMC
15      To restore TAMC-compatibility, need following modifs:
16      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
17      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
18      Tested TAF version is 1.9.22
19      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
20    
21    checkpoint60
22    --->>> This is the last checkpoint for which generating the adjoint
23    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
24    --->>> by default.
25    --->>> Future checkpoints will ommit this flag by default.
26    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
27    o pkg/grdchk: Add gradient check to etan0 perturbations.
28    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
29    o pkg/autodiff: more flexibility in zeroadj.
30      model/src: modifying do_oceanic_phys.F accordingly.
31    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
32    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
33      special setup of gmredi for which the adjoint is stable
34      enough for parameter optimization.
35    o bridging the gap between eddy stress and GM.
36      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
37          along with a change in CPP option (now ALLOW_EDDYPSI).
38      -> when using GM w/ GM_AdvForm:
39          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
40          is applied either in the tracer Eq. or in momentum Eq.
41          depending on data.gmredi (intro. GM_InMomAsStress).
42      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
43      The key modifications are in model/src/taueddy_external_forcing.F
44      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
45    
46    checkpoint59r
47    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
48      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
49      fix option to read coriolis(@ cell-corner) from files with CS-grid.
50    o pkg/mnc: add some attributes to standard 1D-coordinate variables
51    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
52      mass points, when using mnc for output
53      - add runtime parameter (missing_value, missing_value_int) to override
54        default (which is the value of getcon('UNDEF'))
55    o pkg/mnc: prepare mnc for the actual use of missing values with the
56      diagnostics package: small fix in mnc_cw_readwrite.template and more
57      initialisation of never used fields
58      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
59      versions
60    o pkg/thsice/thsice_ini_vars.F added default initial values so that
61      thermodynamics sea ice solver does not blow up when some initial fields
62      are missing.
63    o move from external_forcing_surf.F to ini_forcing.F
64      the p-coord. hack consisting in using pLoad to set phi0surf ;
65      update output of tutorial_global_oce_in_p (affected @ truncation level).
66    o Freshen up a bit hs94.1x64x5, notably:
67      remove rotationPeriod and tRef=5*0. (adjoint only), and add
68      exactConserv=.TRUE.
69    o pkg/generic_advdiff:
70      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
71      applies to files where Temperature & Salinity 2nd Order moments are used.
72    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
73      this uses a dynamically allocated internal state data structure
74      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
75      and requires a fortran 90 compiler
76    
77    checkpoint59q
78    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
79       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
80    o Refresh tutorial_global_oce_biogeo, notably:
81      - change bathymetry (put back seamounts in ACC, use hFacs)
82      - change EOS (POLY3 --> JMD95Z)
83      - use Bryan-Lewis vertical diffusivity
84      - use multidimensional advection
85      - remove old virtual virtual in dic pkg, now done through ptracer pkg
86      - change a couple of parameters in dic pkg
87    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
88    o pkg/obcs: change default to OBCSfixTopo = .true.,
89      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
90      - replace "debugMode" with "debugLevel .GE. debLevB"
91    o implementation of TAF directives for gchem,cfc,dic
92    o remove "exp5" (replaced by tutorial_deep_convection).
93    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
94      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
95      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
96      --> changes results in exp4, seaice_obcs
97    o tutorial_deep_convection :
98      update the set-up and increase resolution and domain size ; start
99      from pseudo initial conditions = output at t=120mn in order to see
100      something happening when running testreport.
101    o pkg/seaice: add os7mp as an advection scheme
102                  add check for advection schemes
103                  add a flag for restoring T and S underneath sea ice
104    o pkg/my82: add netcdf-support and diagnostics
105    o thsice pkg:
106      - Now hsMax limits snow height by turning it into ice following
107        flooding scheme (and now conserving energy)
108      - Slight rewriting of the formula in thsice_calc_thick.F
109      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
110      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
111    
112    checkpoint59p
113    o gchem / dic / cfc :
114      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
115      - add new parameter files: "data.dic" & "data.cfc" ;
116      - various re-arrangement in initialisation & header file ;
117      - fix tutorial_global_oce_biogeo for multi-threaded test.
118    o pkg/dic: test for "pickup_dic" file when restarting ;
119      if no pickup-file, can restart with a re-initialised pH (same as it did
120      before) providing pickupStrictlyMatch is set to False.
121    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
122      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
123    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
124      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
125    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
126     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
127       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
128    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
129       scheme to use for vorticty-term ;
130     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
131       (with default selectVortScheme, return to original discretisation)
132     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
133    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
134    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
135      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
136      also fix diagnostics VISCAHW & VISCA4W.
137    
138    checkpoint59o
139    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
140    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
141      move a few statemens out the main loop into separate loops
142    o pkg/shelfice:
143      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
144        (kg/m^2/s), does not break tests, because in verification/isomip,
145        rhoConstFresh=rhoConst (by accident)
146      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
147      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
148        new file model/src/seawater.F, so that they are available for all pkgs.
149      - convert potential temperature into in-situ temperature. This changes the
150        isomip tests => update tests
151    o add a flag writePickupAtEnd (default=true) to be able to suppress
152      writing a pickup at the last timestep
153    o tools/mpack-1.6 :
154      - disable automake (not working) and autoconf (not needed).
155      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
156        also cleaner with much less compilation warnings.
157    o pkg/profiles:
158      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
159      (for "less than 32 characters name" compiler requirement)
160    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
161      conditions that have a different sampling frequency than S/T/U/V obcs
162    o pkg/diagnostics (stats-diags):
163      - fix global Min/Max in case 1 processor get only empty tiles
164    o genmake2: replace (4 times)
165         make genmake_tc_1.o >> genmake_warnings 2>&1
166      with
167         COMM="$CC $CFLAGS -c genmake_tc_1.c"
168         echo $COMM >> genmake_warnings
169         $COMM >> genmake_warnings 2>&1
170      to make genmake2 always see the value of CC as specified in the optfile.
171    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
172      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
173      - modify verification advect_cs test to test SOM-advection on CS-grid.
174    o pkg/ctrl:
175      - Rewrite of ctrl_map_ini_ecco.F,
176        introducing a generic routine (ctrl_map_ini_gen.F).
177      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
178    
179    checkpoint59n
180    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
181      number in dedicate array "hdiag":
182      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
183        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
184      - many small changes (integer format) for large number of diagnostics
185      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
186        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
187    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
188      usingSphericalGrid, this allows to define the rotated grid coordinates
189      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
190      geographical coordinates according to the inverse of the rotation defined
191      by the Euler angles, so that Coriolis parameter and online-interpolation by
192      exf works with the geographical coordinates on XC/YC/XG/YG.
193      Naturally, this feature does not work with all packages, so some
194      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
195      profiles), because there the coordinates are assumed to be regular
196      spherical grid coordinates.
197    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
198      - introduce isopycnal diffusion coefficient control.
199    o tools/adjoint_options:
200      - additional control vector components.
201    o pkg/mnc: have mnc create marginally meaning full coordinate variables
202      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
203    o pkg/mypackage:
204      - add example of read/write pickup for state-var ;
205      - add entry points to the main code for state-vars diags & write-pickup.
206    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
207      transitions for useExfYearlyFields
208      - add new subroutine that determines the file to read from for
209        use*YearlyFields = .TRUE. and .FALSE.
210      - add a verification experiment to global_with_exf that tests
211        useExfYearlyFields with USE_EXF_INTERPOLATION defined
212    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
213      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
214      subroutines (which could be generated from a template, because they are
215      almost identical), for now they are included in obcs_prescribe_read.F for
216      simplicity
217    o pkg/exf:
218      - add a little more diagnostic to exf_interp_read (in analogy to
219        mds_read_field, can be turned off with debugLevel < debugLevA=1)
220      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
221        ugly but fast by unrolling short inner loops, inserting a unroll=8
222        directive in routine lagran, and splitting a loop and making do while the
223        outermost loop (the latter requires the intoduction of index arrays)
224    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
225    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
226      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
227    o verification/seaice_obcs: updated for restart test and latest options
228    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
229      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
230      for now this is only available for the C-grid code and also within
231      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
232    
233    checkpoint59m
234    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
235      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
236    o gad_som : fix flux output (& diagnostics) to have same units as other  
237      advection scheme fluxes (was previously multiplied by deltaT).  
238    o added verification/seaice_obcs both to test seaice open boundaries
239      and to provide an example matlab scrpt for generating them
240    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
241    o pkg/salt_plume: clean up salt_plume_frac.F to
242      remove redundancy in PlumeMethod 1 and 4
243    o pkg/kpp: added saltplume diagnostics
244    o pkg/obcs and pkg/seaice:
245      - do not set uice and vice to zero when OB*icefile are unspecified
246      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
247      - moved seaice tracer obcs after call to seaice_growth
248    o pkg/salt_plume: added various options for salt plume depth
249      criterion and for vertical distribution of the salt
250    
251    checkpoint59l
252    o pkg/ptracers: new version of ptracers pickup:
253      read meta file and write only fields which are needed to restart.
254      ( same logic as main pickup file ; also using pickupStrictlyMatch )
255    o pkg/seaice:
256      - add timescale for melting due to warm mixed layer as a means of
257        setting SEAICE_availHeatFrac more conveniently
258      - add a CPP-flag/runtime parameter check for flooding algorithm
259      - reformulated availHeat in seaice_growth.F to be independent of AREA
260    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
261      unit changes
262    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
263    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
264      SX vector computer.
265    o pkg/seaice:
266      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
267        seaice forcing fields can now be read only through pkg/exf
268      - removed some unused halos
269    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
270    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
271      or U/VICE from U/VWIND before computing U/VSTRESS
272    
273    checkpoint59k
274    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
275      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
276    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
277      all experiments pass when compile with un-initialised var. checking option.
278    o added pkg/salt_plume
279    o script to test restart (for now, in MITgcm_contrib/jmc_script)
280    o pkg/seaice: new read/write pickup version.
281      read meta file and write only fields which are needed to restart.
282      ( same logic as main pickup file ; also using pickupStrictlyMatch )
283    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
284    o lab_sea.hb87: modify the domain & update output.hb87.txt :
285      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
286      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
287      process. Fixed here by closing the domain at the Northern boundary.
288    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
289    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
290      a set of consecutive levels in/from a 3-D array.
291    o pkg/ptracers:
292      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
293      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
294    
295    checkpoint59j
296  o in pkgs: dic, obcs, offline, rbcs:  o in pkgs: dic, obcs, offline, rbcs:
297    standard way to compute coeff. for time interpolation between 2 time reccords    standard way to compute coeff. for time interpolation between 2 time reccords
298    which retains full precision (& make results less dependent on compiler).    which retains full precision (& make results less dependent on compiler).

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