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revision 1.905 by mlosch, Wed Nov 7 11:13:21 2007 UTC revision 1.1005 by heimbach, Fri Jun 20 21:43:18 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 autodiff
8      Change default for TAF usage by removing argument '-nonew_arg'
9      This changes TAF subroutine argument list (ordering of active var.)
10      Omission of this flag leads to incompatibility w.r.t. TAMC
11      To restore TAMC-compatibility, need following modifs:
12      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
13      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
14      Tested TAF version is 1.9.22
15      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
16    
17    checkpoint60
18    --->>> This is the last checkpoint for which generating the adjoint
19    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
20    --->>> by default.
21    --->>> Future checkpoints will ommit this flag by default.
22    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
23    o pkg/grdchk: Add gradient check to etan0 perturbations.
24    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
25    o pkg/autodiff: more flexibility in zeroadj.
26      model/src: modifying do_oceanic_phys.F accordingly.
27    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
28    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
29      special setup of gmredi for which the adjoint is stable
30      enough for parameter optimization.
31    o bridging the gap between eddy stress and GM.
32      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
33          along with a change in CPP option (now ALLOW_EDDYPSI).
34      -> when using GM w/ GM_AdvForm:
35          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
36          is applied either in the tracer Eq. or in momentum Eq.
37          depending on data.gmredi (intro. GM_InMomAsStress).
38      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
39      The key modifications are in model/src/taueddy_external_forcing.F
40      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
41    
42    checkpoint59r
43    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
44      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
45      fix option to read coriolis(@ cell-corner) from files with CS-grid.
46    o pkg/mnc: add some attributes to standard 1D-coordinate variables
47    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
48      mass points, when using mnc for output
49      - add runtime parameter (missing_value, missing_value_int) to override
50        default (which is the value of getcon('UNDEF'))
51    o pkg/mnc: prepare mnc for the actual use of missing values with the
52      diagnostics package: small fix in mnc_cw_readwrite.template and more
53      initialisation of never used fields
54      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
55      versions
56    o pkg/thsice/thsice_ini_vars.F added default initial values so that
57      thermodynamics sea ice solver does not blow up when some initial fields
58      are missing.
59    o move from external_forcing_surf.F to ini_forcing.F
60      the p-coord. hack consisting in using pLoad to set phi0surf ;
61      update output of tutorial_global_oce_in_p (affected @ truncation level).
62    o Freshen up a bit hs94.1x64x5, notably:
63      remove rotationPeriod and tRef=5*0. (adjoint only), and add
64      exactConserv=.TRUE.
65    o pkg/generic_advdiff:
66      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
67      applies to files where Temperature & Salinity 2nd Order moments are used.
68    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
69      this uses a dynamically allocated internal state data structure
70      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
71      and requires a fortran 90 compiler
72    
73    checkpoint59q
74    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
75       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
76    o Refresh tutorial_global_oce_biogeo, notably:
77      - change bathymetry (put back seamounts in ACC, use hFacs)
78      - change EOS (POLY3 --> JMD95Z)
79      - use Bryan-Lewis vertical diffusivity
80      - use multidimensional advection
81      - remove old virtual virtual in dic pkg, now done through ptracer pkg
82      - change a couple of parameters in dic pkg
83    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
84    o pkg/obcs: change default to OBCSfixTopo = .true.,
85      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
86      - replace "debugMode" with "debugLevel .GE. debLevB"
87    o implementation of TAF directives for gchem,cfc,dic
88    o remove "exp5" (replaced by tutorial_deep_convection).
89    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
90      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
91      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
92      --> changes results in exp4, seaice_obcs
93    o tutorial_deep_convection :
94      update the set-up and increase resolution and domain size ; start
95      from pseudo initial conditions = output at t=120mn in order to see
96      something happening when running testreport.
97    o pkg/seaice: add os7mp as an advection scheme
98                  add check for advection schemes
99                  add a flag for restoring T and S underneath sea ice
100    o pkg/my82: add netcdf-support and diagnostics
101    o thsice pkg:
102      - Now hsMax limits snow height by turning it into ice following
103        flooding scheme (and now conserving energy)
104      - Slight rewriting of the formula in thsice_calc_thick.F
105      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
106      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
107    
108    checkpoint59p
109    o gchem / dic / cfc :
110      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
111      - add new parameter files: "data.dic" & "data.cfc" ;
112      - various re-arrangement in initialisation & header file ;
113      - fix tutorial_global_oce_biogeo for multi-threaded test.
114    o pkg/dic: test for "pickup_dic" file when restarting ;
115      if no pickup-file, can restart with a re-initialised pH (same as it did
116      before) providing pickupStrictlyMatch is set to False.
117    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
118      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
119    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
120      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
121    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
122     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
123       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
124    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
125       scheme to use for vorticty-term ;
126     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
127       (with default selectVortScheme, return to original discretisation)
128     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
129    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
130    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
131      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
132      also fix diagnostics VISCAHW & VISCA4W.
133    
134    checkpoint59o
135    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
136    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
137      move a few statemens out the main loop into separate loops
138    o pkg/shelfice:
139      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
140        (kg/m^2/s), does not break tests, because in verification/isomip,
141        rhoConstFresh=rhoConst (by accident)
142      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
143      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
144        new file model/src/seawater.F, so that they are available for all pkgs.
145      - convert potential temperature into in-situ temperature. This changes the
146        isomip tests => update tests
147    o add a flag writePickupAtEnd (default=true) to be able to suppress
148      writing a pickup at the last timestep
149    o tools/mpack-1.6 :
150      - disable automake (not working) and autoconf (not needed).
151      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
152        also cleaner with much less compilation warnings.
153    o pkg/profiles:
154      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
155      (for "less than 32 characters name" compiler requirement)
156    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
157      conditions that have a different sampling frequency than S/T/U/V obcs
158    o pkg/diagnostics (stats-diags):
159      - fix global Min/Max in case 1 processor get only empty tiles
160    o genmake2: replace (4 times)
161         make genmake_tc_1.o >> genmake_warnings 2>&1
162      with
163         COMM="$CC $CFLAGS -c genmake_tc_1.c"
164         echo $COMM >> genmake_warnings
165         $COMM >> genmake_warnings 2>&1
166      to make genmake2 always see the value of CC as specified in the optfile.
167    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
168      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
169      - modify verification advect_cs test to test SOM-advection on CS-grid.
170    o pkg/ctrl:
171      - Rewrite of ctrl_map_ini_ecco.F,
172        introducing a generic routine (ctrl_map_ini_gen.F).
173      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
174    
175    checkpoint59n
176    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
177      number in dedicate array "hdiag":
178      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
179        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
180      - many small changes (integer format) for large number of diagnostics
181      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
182        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
183    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
184      usingSphericalGrid, this allows to define the rotated grid coordinates
185      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
186      geographical coordinates according to the inverse of the rotation defined
187      by the Euler angles, so that Coriolis parameter and online-interpolation by
188      exf works with the geographical coordinates on XC/YC/XG/YG.
189      Naturally, this feature does not work with all packages, so some
190      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
191      profiles), because there the coordinates are assumed to be regular
192      spherical grid coordinates.
193    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
194      - introduce isopycnal diffusion coefficient control.
195    o tools/adjoint_options:
196      - additional control vector components.
197    o pkg/mnc: have mnc create marginally meaning full coordinate variables
198      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
199    o pkg/mypackage:
200      - add example of read/write pickup for state-var ;
201      - add entry points to the main code for state-vars diags & write-pickup.
202    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
203      transitions for useExfYearlyFields
204      - add new subroutine that determines the file to read from for
205        use*YearlyFields = .TRUE. and .FALSE.
206      - add a verification experiment to global_with_exf that tests
207        useExfYearlyFields with USE_EXF_INTERPOLATION defined
208    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
209      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
210      subroutines (which could be generated from a template, because they are
211      almost identical), for now they are included in obcs_prescribe_read.F for
212      simplicity
213    o pkg/exf:
214      - add a little more diagnostic to exf_interp_read (in analogy to
215        mds_read_field, can be turned off with debugLevel < debugLevA=1)
216      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
217        ugly but fast by unrolling short inner loops, inserting a unroll=8
218        directive in routine lagran, and splitting a loop and making do while the
219        outermost loop (the latter requires the intoduction of index arrays)
220    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
221    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
222      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
223    o verification/seaice_obcs: updated for restart test and latest options
224    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
225      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
226      for now this is only available for the C-grid code and also within
227      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
228    
229    checkpoint59m
230    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
231      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
232    o gad_som : fix flux output (& diagnostics) to have same units as other  
233      advection scheme fluxes (was previously multiplied by deltaT).  
234    o added verification/seaice_obcs both to test seaice open boundaries
235      and to provide an example matlab scrpt for generating them
236    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
237    o pkg/salt_plume: clean up salt_plume_frac.F to
238      remove redundancy in PlumeMethod 1 and 4
239    o pkg/kpp: added saltplume diagnostics
240    o pkg/obcs and pkg/seaice:
241      - do not set uice and vice to zero when OB*icefile are unspecified
242      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
243      - moved seaice tracer obcs after call to seaice_growth
244    o pkg/salt_plume: added various options for salt plume depth
245      criterion and for vertical distribution of the salt
246    
247    checkpoint59l
248    o pkg/ptracers: new version of ptracers pickup:
249      read meta file and write only fields which are needed to restart.
250      ( same logic as main pickup file ; also using pickupStrictlyMatch )
251    o pkg/seaice:
252      - add timescale for melting due to warm mixed layer as a means of
253        setting SEAICE_availHeatFrac more conveniently
254      - add a CPP-flag/runtime parameter check for flooding algorithm
255      - reformulated availHeat in seaice_growth.F to be independent of AREA
256    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
257      unit changes
258    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
259    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
260      SX vector computer.
261    o pkg/seaice:
262      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
263        seaice forcing fields can now be read only through pkg/exf
264      - removed some unused halos
265    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
266    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
267      or U/VICE from U/VWIND before computing U/VSTRESS
268    
269    checkpoint59k
270    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
271      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
272    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
273      all experiments pass when compile with un-initialised var. checking option.
274    o added pkg/salt_plume
275    o script to test restart (for now, in MITgcm_contrib/jmc_script)
276    o pkg/seaice: new read/write pickup version.
277      read meta file and write only fields which are needed to restart.
278      ( same logic as main pickup file ; also using pickupStrictlyMatch )
279    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
280    o lab_sea.hb87: modify the domain & update output.hb87.txt :
281      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
282      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
283      process. Fixed here by closing the domain at the Northern boundary.
284    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
285    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
286      a set of consecutive levels in/from a 3-D array.
287    o pkg/ptracers:
288      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
289      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
290    
291    checkpoint59j
292    o in pkgs: dic, obcs, offline, rbcs:
293      standard way to compute coeff. for time interpolation between 2 time reccords
294      which retains full precision (& make results less dependent on compiler).
295      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
296  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
297    packages instead of reading ice cover and wind speed separately    packages instead of reading ice cover and wind speed separately
298  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h

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