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revision 1.900 by jmc, Sun Oct 28 21:39:40 2007 UTC revision 1.1015 by jmc, Wed Aug 13 15:12:04 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 move kSurfC,kSurfW 7 kSurfS from SURFACE.h to GRID.h (next to kLowC)
8      (to facilitate conversion of oceanic pkg to p-coordinate).
9    o change FIND_RHO to FIND_RHO_2D :
10      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
11    o new pkg: cheapaml
12    
13    checkpoint61b
14    o exch2:
15      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
16      - no longer depend on the order sequence (N,S,E,W).
17      - 3rd exchange no longer needed (tested with 24 tiles).
18      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
19      - exch_UV_A-grid readily available (but not yet tested).
20      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
21      (both are no longer needed) in exch_uv: no effect in forward run; but
22       get truncation error differences with adjoint exch.
23    o exch2:
24     - change index-bounds storage (moved from target to local tile,
25       more intuitive this way) ; rename/remove some variables.
26     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
27    
28    checkpoint61a
29    o exch2/matlab-topology-generator:
30      fix bug in index bounds for N-S internal exchange (hard to tell if this
31      had any effect on the solution).
32    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
33      is exceeded
34    o testreport: modify syntax of awk, so that it works also with
35      awk, and not only with nawk and gawk
36    
37    checkpoint61
38    o autodiff
39      Change default for TAF usage by removing argument '-nonew_arg'
40      This changes TAF subroutine argument list (ordering of active var.)
41      Omission of this flag leads to incompatibility w.r.t. TAMC
42      To restore TAMC-compatibility, need following modifs:
43      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
44      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
45      Tested TAF version is 1.9.22
46      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
47    
48    checkpoint60
49    --->>> This is the last checkpoint for which generating the adjoint
50    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
51    --->>> by default.
52    --->>> Future checkpoints will ommit this flag by default.
53    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
54    o pkg/grdchk: Add gradient check to etan0 perturbations.
55    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
56    o pkg/autodiff: more flexibility in zeroadj.
57      model/src: modifying do_oceanic_phys.F accordingly.
58    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
59    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
60      special setup of gmredi for which the adjoint is stable
61      enough for parameter optimization.
62    o bridging the gap between eddy stress and GM.
63      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
64          along with a change in CPP option (now ALLOW_EDDYPSI).
65      -> when using GM w/ GM_AdvForm:
66          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
67          is applied either in the tracer Eq. or in momentum Eq.
68          depending on data.gmredi (intro. GM_InMomAsStress).
69      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
70      The key modifications are in model/src/taueddy_external_forcing.F
71      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
72    
73    checkpoint59r
74    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
75      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
76      fix option to read coriolis(@ cell-corner) from files with CS-grid.
77    o pkg/mnc: add some attributes to standard 1D-coordinate variables
78    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
79      mass points, when using mnc for output
80      - add runtime parameter (missing_value, missing_value_int) to override
81        default (which is the value of getcon('UNDEF'))
82    o pkg/mnc: prepare mnc for the actual use of missing values with the
83      diagnostics package: small fix in mnc_cw_readwrite.template and more
84      initialisation of never used fields
85      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
86      versions
87    o pkg/thsice/thsice_ini_vars.F added default initial values so that
88      thermodynamics sea ice solver does not blow up when some initial fields
89      are missing.
90    o move from external_forcing_surf.F to ini_forcing.F
91      the p-coord. hack consisting in using pLoad to set phi0surf ;
92      update output of tutorial_global_oce_in_p (affected @ truncation level).
93    o Freshen up a bit hs94.1x64x5, notably:
94      remove rotationPeriod and tRef=5*0. (adjoint only), and add
95      exactConserv=.TRUE.
96    o pkg/generic_advdiff:
97      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
98      applies to files where Temperature & Salinity 2nd Order moments are used.
99    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
100      this uses a dynamically allocated internal state data structure
101      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
102      and requires a fortran 90 compiler
103    
104    checkpoint59q
105    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
106       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
107    o Refresh tutorial_global_oce_biogeo, notably:
108      - change bathymetry (put back seamounts in ACC, use hFacs)
109      - change EOS (POLY3 --> JMD95Z)
110      - use Bryan-Lewis vertical diffusivity
111      - use multidimensional advection
112      - remove old virtual virtual in dic pkg, now done through ptracer pkg
113      - change a couple of parameters in dic pkg
114    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
115    o pkg/obcs: change default to OBCSfixTopo = .true.,
116      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
117      - replace "debugMode" with "debugLevel .GE. debLevB"
118    o implementation of TAF directives for gchem,cfc,dic
119    o remove "exp5" (replaced by tutorial_deep_convection).
120    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
121      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
122      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
123      --> changes results in exp4, seaice_obcs
124    o tutorial_deep_convection :
125      update the set-up and increase resolution and domain size ; start
126      from pseudo initial conditions = output at t=120mn in order to see
127      something happening when running testreport.
128    o pkg/seaice: add os7mp as an advection scheme
129                  add check for advection schemes
130                  add a flag for restoring T and S underneath sea ice
131    o pkg/my82: add netcdf-support and diagnostics
132    o thsice pkg:
133      - Now hsMax limits snow height by turning it into ice following
134        flooding scheme (and now conserving energy)
135      - Slight rewriting of the formula in thsice_calc_thick.F
136      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
137      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
138    
139    checkpoint59p
140    o gchem / dic / cfc :
141      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
142      - add new parameter files: "data.dic" & "data.cfc" ;
143      - various re-arrangement in initialisation & header file ;
144      - fix tutorial_global_oce_biogeo for multi-threaded test.
145    o pkg/dic: test for "pickup_dic" file when restarting ;
146      if no pickup-file, can restart with a re-initialised pH (same as it did
147      before) providing pickupStrictlyMatch is set to False.
148    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
149      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
150    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
151      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
152    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
153     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
154       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
155    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
156       scheme to use for vorticty-term ;
157     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
158       (with default selectVortScheme, return to original discretisation)
159     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
160    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
161    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
162      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
163      also fix diagnostics VISCAHW & VISCA4W.
164    
165    checkpoint59o
166    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
167    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
168      move a few statemens out the main loop into separate loops
169    o pkg/shelfice:
170      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
171        (kg/m^2/s), does not break tests, because in verification/isomip,
172        rhoConstFresh=rhoConst (by accident)
173      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
174      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
175        new file model/src/seawater.F, so that they are available for all pkgs.
176      - convert potential temperature into in-situ temperature. This changes the
177        isomip tests => update tests
178    o add a flag writePickupAtEnd (default=true) to be able to suppress
179      writing a pickup at the last timestep
180    o tools/mpack-1.6 :
181      - disable automake (not working) and autoconf (not needed).
182      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
183        also cleaner with much less compilation warnings.
184    o pkg/profiles:
185      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
186      (for "less than 32 characters name" compiler requirement)
187    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
188      conditions that have a different sampling frequency than S/T/U/V obcs
189    o pkg/diagnostics (stats-diags):
190      - fix global Min/Max in case 1 processor get only empty tiles
191    o genmake2: replace (4 times)
192         make genmake_tc_1.o >> genmake_warnings 2>&1
193      with
194         COMM="$CC $CFLAGS -c genmake_tc_1.c"
195         echo $COMM >> genmake_warnings
196         $COMM >> genmake_warnings 2>&1
197      to make genmake2 always see the value of CC as specified in the optfile.
198    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
199      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
200      - modify verification advect_cs test to test SOM-advection on CS-grid.
201    o pkg/ctrl:
202      - Rewrite of ctrl_map_ini_ecco.F,
203        introducing a generic routine (ctrl_map_ini_gen.F).
204      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
205    
206    checkpoint59n
207    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
208      number in dedicate array "hdiag":
209      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
210        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
211      - many small changes (integer format) for large number of diagnostics
212      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
213        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
214    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
215      usingSphericalGrid, this allows to define the rotated grid coordinates
216      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
217      geographical coordinates according to the inverse of the rotation defined
218      by the Euler angles, so that Coriolis parameter and online-interpolation by
219      exf works with the geographical coordinates on XC/YC/XG/YG.
220      Naturally, this feature does not work with all packages, so some
221      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
222      profiles), because there the coordinates are assumed to be regular
223      spherical grid coordinates.
224    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
225      - introduce isopycnal diffusion coefficient control.
226    o tools/adjoint_options:
227      - additional control vector components.
228    o pkg/mnc: have mnc create marginally meaning full coordinate variables
229      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
230    o pkg/mypackage:
231      - add example of read/write pickup for state-var ;
232      - add entry points to the main code for state-vars diags & write-pickup.
233    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
234      transitions for useExfYearlyFields
235      - add new subroutine that determines the file to read from for
236        use*YearlyFields = .TRUE. and .FALSE.
237      - add a verification experiment to global_with_exf that tests
238        useExfYearlyFields with USE_EXF_INTERPOLATION defined
239    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
240      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
241      subroutines (which could be generated from a template, because they are
242      almost identical), for now they are included in obcs_prescribe_read.F for
243      simplicity
244    o pkg/exf:
245      - add a little more diagnostic to exf_interp_read (in analogy to
246        mds_read_field, can be turned off with debugLevel < debugLevA=1)
247      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
248        ugly but fast by unrolling short inner loops, inserting a unroll=8
249        directive in routine lagran, and splitting a loop and making do while the
250        outermost loop (the latter requires the intoduction of index arrays)
251    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
252    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
253      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
254    o verification/seaice_obcs: updated for restart test and latest options
255    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
256      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
257      for now this is only available for the C-grid code and also within
258      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
259    
260    checkpoint59m
261    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
262      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
263    o gad_som : fix flux output (& diagnostics) to have same units as other  
264      advection scheme fluxes (was previously multiplied by deltaT).  
265    o added verification/seaice_obcs both to test seaice open boundaries
266      and to provide an example matlab scrpt for generating them
267    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
268    o pkg/salt_plume: clean up salt_plume_frac.F to
269      remove redundancy in PlumeMethod 1 and 4
270    o pkg/kpp: added saltplume diagnostics
271    o pkg/obcs and pkg/seaice:
272      - do not set uice and vice to zero when OB*icefile are unspecified
273      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
274      - moved seaice tracer obcs after call to seaice_growth
275    o pkg/salt_plume: added various options for salt plume depth
276      criterion and for vertical distribution of the salt
277    
278    checkpoint59l
279    o pkg/ptracers: new version of ptracers pickup:
280      read meta file and write only fields which are needed to restart.
281      ( same logic as main pickup file ; also using pickupStrictlyMatch )
282    o pkg/seaice:
283      - add timescale for melting due to warm mixed layer as a means of
284        setting SEAICE_availHeatFrac more conveniently
285      - add a CPP-flag/runtime parameter check for flooding algorithm
286      - reformulated availHeat in seaice_growth.F to be independent of AREA
287    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
288      unit changes
289    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
290    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
291      SX vector computer.
292    o pkg/seaice:
293      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
294        seaice forcing fields can now be read only through pkg/exf
295      - removed some unused halos
296    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
297    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
298      or U/VICE from U/VWIND before computing U/VSTRESS
299    
300    checkpoint59k
301    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
302      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
303    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
304      all experiments pass when compile with un-initialised var. checking option.
305    o added pkg/salt_plume
306    o script to test restart (for now, in MITgcm_contrib/jmc_script)
307    o pkg/seaice: new read/write pickup version.
308      read meta file and write only fields which are needed to restart.
309      ( same logic as main pickup file ; also using pickupStrictlyMatch )
310    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
311    o lab_sea.hb87: modify the domain & update output.hb87.txt :
312      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
313      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
314      process. Fixed here by closing the domain at the Northern boundary.
315    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
316    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
317      a set of consecutive levels in/from a 3-D array.
318    o pkg/ptracers:
319      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
320      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
321    
322    checkpoint59j
323    o in pkgs: dic, obcs, offline, rbcs:
324      standard way to compute coeff. for time interpolation between 2 time reccords
325      which retains full precision (& make results less dependent on compiler).
326      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
327    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
328      packages instead of reading ice cover and wind speed separately
329    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
330     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
331      to allow to compile customized code before the update)
332    o cleaning-up:
333      - fix CPP instruction syntax in pkg/obcs
334      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
335        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
336      - fix some threads issue in IO parts.
337    o pkg/dic:
338      - add tons of "_d 0" (--> much better testreports !)
339       and then update outputs of tutorial_global_oce_biogeo
340  o pkg/mom_fluxform:  o pkg/mom_fluxform:
341    add a special version of momentum advection intended to conserve momentum    add a special version of momentum advection intended to conserve momentum
342    next to a bathymetry step or a coastline edge. (default = off = #undef)    next to a bathymetry step or a coastline edge. (default = off = #undef)
# Line 61  o add a little bit of code to gad_os7mp_ Line 394  o add a little bit of code to gad_os7mp_
394  o add new diagnostics to seaice: advective, diffusive fluxes (only for  o add new diagnostics to seaice: advective, diffusive fluxes (only for
395    multidim-advection, for scheme 2 they are not filled) and transports,    multidim-advection, for scheme 2 they are not filled) and transports,
396    thermodynamic growth rates    thermodynamic growth rates
397  o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but  o change units of EmPmR (inside the code, + within coupling interface)
398    leave input file unchanged. Affects results @ truncation level (cg2d match)    from m/s to kg/m2/s (mass flux) but leave input file unchanged.
399    and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),    Affects results @ truncation level (cg2d match) and update output of
400       experiments: lab_sea(6), global_ocean.90x40x15(10),
401    global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)    global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
402    + adjoint results: global_ocean_ebm(11) and lab_sea (12).    + adjoint results: global_ocean_ebm(11) and lab_sea (12).
403      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
404    Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).    Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
405    
406  checkpoint59h  checkpoint59h

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