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revision 1.903 by jmc, Mon Nov 5 16:02:31 2007 UTC revision 1.1021 by mlosch, Tue Sep 9 07:26:01 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 fix a bug in diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
8    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
9      and rename:
10      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
11      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
12    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
13    
14    checkpoint61c
15    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
16      to add mass source/sink of fluid in the interior (3-D generalisation
17      of oceanic real-fresh water flux).
18    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
19    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
20    o new pkg: down_slope
21      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
22      - presently, modify T & S inland (dwnslp_calc_rho.F).
23        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
24      - implementation for ocean in P-coords not tested.
25      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
26    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
27      (to facilitate conversion of oceanic pkg to p-coordinate).
28    o change FIND_RHO to FIND_RHO_2D :
29      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
30    o new pkg: cheapaml
31    
32    checkpoint61b
33    o exch2:
34      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
35      - no longer depend on the order sequence (N,S,E,W).
36      - 3rd exchange no longer needed (tested with 24 tiles).
37      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
38      - exch_UV_A-grid readily available (but not yet tested).
39      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
40      (both are no longer needed) in exch_uv: no effect in forward run; but
41       get truncation error differences with adjoint exch.
42    o exch2:
43     - change index-bounds storage (moved from target to local tile,
44       more intuitive this way) ; rename/remove some variables.
45     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
46    
47    checkpoint61a
48    o exch2/matlab-topology-generator:
49      fix bug in index bounds for N-S internal exchange (hard to tell if this
50      had any effect on the solution).
51    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
52      is exceeded
53    o testreport: modify syntax of awk, so that it works also with
54      awk, and not only with nawk and gawk
55    
56    checkpoint61
57    o autodiff
58      Change default for TAF usage by removing argument '-nonew_arg'
59      This changes TAF subroutine argument list (ordering of active var.)
60      Omission of this flag leads to incompatibility w.r.t. TAMC
61      To restore TAMC-compatibility, need following modifs:
62      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
63      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
64      Tested TAF version is 1.9.22
65      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
66    
67    checkpoint60
68    --->>> This is the last checkpoint for which generating the adjoint
69    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
70    --->>> by default.
71    --->>> Future checkpoints will ommit this flag by default.
72    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
73    o pkg/grdchk: Add gradient check to etan0 perturbations.
74    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
75    o pkg/autodiff: more flexibility in zeroadj.
76      model/src: modifying do_oceanic_phys.F accordingly.
77    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
78    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
79      special setup of gmredi for which the adjoint is stable
80      enough for parameter optimization.
81    o bridging the gap between eddy stress and GM.
82      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
83          along with a change in CPP option (now ALLOW_EDDYPSI).
84      -> when using GM w/ GM_AdvForm:
85          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
86          is applied either in the tracer Eq. or in momentum Eq.
87          depending on data.gmredi (intro. GM_InMomAsStress).
88      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
89      The key modifications are in model/src/taueddy_external_forcing.F
90      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
91    
92    checkpoint59r
93    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
94      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
95      fix option to read coriolis(@ cell-corner) from files with CS-grid.
96    o pkg/mnc: add some attributes to standard 1D-coordinate variables
97    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
98      mass points, when using mnc for output
99      - add runtime parameter (missing_value, missing_value_int) to override
100        default (which is the value of getcon('UNDEF'))
101    o pkg/mnc: prepare mnc for the actual use of missing values with the
102      diagnostics package: small fix in mnc_cw_readwrite.template and more
103      initialisation of never used fields
104      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
105      versions
106    o pkg/thsice/thsice_ini_vars.F added default initial values so that
107      thermodynamics sea ice solver does not blow up when some initial fields
108      are missing.
109    o move from external_forcing_surf.F to ini_forcing.F
110      the p-coord. hack consisting in using pLoad to set phi0surf ;
111      update output of tutorial_global_oce_in_p (affected @ truncation level).
112    o Freshen up a bit hs94.1x64x5, notably:
113      remove rotationPeriod and tRef=5*0. (adjoint only), and add
114      exactConserv=.TRUE.
115    o pkg/generic_advdiff:
116      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
117      applies to files where Temperature & Salinity 2nd Order moments are used.
118    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
119      this uses a dynamically allocated internal state data structure
120      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
121      and requires a fortran 90 compiler
122    
123    checkpoint59q
124    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
125       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
126    o Refresh tutorial_global_oce_biogeo, notably:
127      - change bathymetry (put back seamounts in ACC, use hFacs)
128      - change EOS (POLY3 --> JMD95Z)
129      - use Bryan-Lewis vertical diffusivity
130      - use multidimensional advection
131      - remove old virtual virtual in dic pkg, now done through ptracer pkg
132      - change a couple of parameters in dic pkg
133    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
134    o pkg/obcs: change default to OBCSfixTopo = .true.,
135      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
136      - replace "debugMode" with "debugLevel .GE. debLevB"
137    o implementation of TAF directives for gchem,cfc,dic
138    o remove "exp5" (replaced by tutorial_deep_convection).
139    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
140      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
141      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
142      --> changes results in exp4, seaice_obcs
143    o tutorial_deep_convection :
144      update the set-up and increase resolution and domain size ; start
145      from pseudo initial conditions = output at t=120mn in order to see
146      something happening when running testreport.
147    o pkg/seaice: add os7mp as an advection scheme
148                  add check for advection schemes
149                  add a flag for restoring T and S underneath sea ice
150    o pkg/my82: add netcdf-support and diagnostics
151    o thsice pkg:
152      - Now hsMax limits snow height by turning it into ice following
153        flooding scheme (and now conserving energy)
154      - Slight rewriting of the formula in thsice_calc_thick.F
155      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
156      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
157    
158    checkpoint59p
159    o gchem / dic / cfc :
160      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
161      - add new parameter files: "data.dic" & "data.cfc" ;
162      - various re-arrangement in initialisation & header file ;
163      - fix tutorial_global_oce_biogeo for multi-threaded test.
164    o pkg/dic: test for "pickup_dic" file when restarting ;
165      if no pickup-file, can restart with a re-initialised pH (same as it did
166      before) providing pickupStrictlyMatch is set to False.
167    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
168      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
169    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
170      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
171    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
172     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
173       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
174    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
175       scheme to use for vorticty-term ;
176     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
177       (with default selectVortScheme, return to original discretisation)
178     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
179    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
180    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
181      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
182      also fix diagnostics VISCAHW & VISCA4W.
183    
184    checkpoint59o
185    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
186    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
187      move a few statemens out the main loop into separate loops
188    o pkg/shelfice:
189      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
190        (kg/m^2/s), does not break tests, because in verification/isomip,
191        rhoConstFresh=rhoConst (by accident)
192      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
193      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
194        new file model/src/seawater.F, so that they are available for all pkgs.
195      - convert potential temperature into in-situ temperature. This changes the
196        isomip tests => update tests
197    o add a flag writePickupAtEnd (default=true) to be able to suppress
198      writing a pickup at the last timestep
199    o tools/mpack-1.6 :
200      - disable automake (not working) and autoconf (not needed).
201      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
202        also cleaner with much less compilation warnings.
203    o pkg/profiles:
204      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
205      (for "less than 32 characters name" compiler requirement)
206    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
207      conditions that have a different sampling frequency than S/T/U/V obcs
208    o pkg/diagnostics (stats-diags):
209      - fix global Min/Max in case 1 processor get only empty tiles
210    o genmake2: replace (4 times)
211         make genmake_tc_1.o >> genmake_warnings 2>&1
212      with
213         COMM="$CC $CFLAGS -c genmake_tc_1.c"
214         echo $COMM >> genmake_warnings
215         $COMM >> genmake_warnings 2>&1
216      to make genmake2 always see the value of CC as specified in the optfile.
217    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
218      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
219      - modify verification advect_cs test to test SOM-advection on CS-grid.
220    o pkg/ctrl:
221      - Rewrite of ctrl_map_ini_ecco.F,
222        introducing a generic routine (ctrl_map_ini_gen.F).
223      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
224    
225    checkpoint59n
226    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
227      number in dedicate array "hdiag":
228      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
229        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
230      - many small changes (integer format) for large number of diagnostics
231      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
232        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
233    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
234      usingSphericalGrid, this allows to define the rotated grid coordinates
235      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
236      geographical coordinates according to the inverse of the rotation defined
237      by the Euler angles, so that Coriolis parameter and online-interpolation by
238      exf works with the geographical coordinates on XC/YC/XG/YG.
239      Naturally, this feature does not work with all packages, so some
240      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
241      profiles), because there the coordinates are assumed to be regular
242      spherical grid coordinates.
243    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
244      - introduce isopycnal diffusion coefficient control.
245    o tools/adjoint_options:
246      - additional control vector components.
247    o pkg/mnc: have mnc create marginally meaning full coordinate variables
248      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
249    o pkg/mypackage:
250      - add example of read/write pickup for state-var ;
251      - add entry points to the main code for state-vars diags & write-pickup.
252    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
253      transitions for useExfYearlyFields
254      - add new subroutine that determines the file to read from for
255        use*YearlyFields = .TRUE. and .FALSE.
256      - add a verification experiment to global_with_exf that tests
257        useExfYearlyFields with USE_EXF_INTERPOLATION defined
258    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
259      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
260      subroutines (which could be generated from a template, because they are
261      almost identical), for now they are included in obcs_prescribe_read.F for
262      simplicity
263    o pkg/exf:
264      - add a little more diagnostic to exf_interp_read (in analogy to
265        mds_read_field, can be turned off with debugLevel < debugLevA=1)
266      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
267        ugly but fast by unrolling short inner loops, inserting a unroll=8
268        directive in routine lagran, and splitting a loop and making do while the
269        outermost loop (the latter requires the intoduction of index arrays)
270    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
271    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
272      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
273    o verification/seaice_obcs: updated for restart test and latest options
274    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
275      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
276      for now this is only available for the C-grid code and also within
277      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
278    
279    checkpoint59m
280    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
281      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
282    o gad_som : fix flux output (& diagnostics) to have same units as other  
283      advection scheme fluxes (was previously multiplied by deltaT).  
284    o added verification/seaice_obcs both to test seaice open boundaries
285      and to provide an example matlab scrpt for generating them
286    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
287    o pkg/salt_plume: clean up salt_plume_frac.F to
288      remove redundancy in PlumeMethod 1 and 4
289    o pkg/kpp: added saltplume diagnostics
290    o pkg/obcs and pkg/seaice:
291      - do not set uice and vice to zero when OB*icefile are unspecified
292      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
293      - moved seaice tracer obcs after call to seaice_growth
294    o pkg/salt_plume: added various options for salt plume depth
295      criterion and for vertical distribution of the salt
296    
297    checkpoint59l
298    o pkg/ptracers: new version of ptracers pickup:
299      read meta file and write only fields which are needed to restart.
300      ( same logic as main pickup file ; also using pickupStrictlyMatch )
301    o pkg/seaice:
302      - add timescale for melting due to warm mixed layer as a means of
303        setting SEAICE_availHeatFrac more conveniently
304      - add a CPP-flag/runtime parameter check for flooding algorithm
305      - reformulated availHeat in seaice_growth.F to be independent of AREA
306    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
307      unit changes
308    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
309    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
310      SX vector computer.
311    o pkg/seaice:
312      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
313        seaice forcing fields can now be read only through pkg/exf
314      - removed some unused halos
315    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
316    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
317      or U/VICE from U/VWIND before computing U/VSTRESS
318    
319    checkpoint59k
320    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
321      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
322    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
323      all experiments pass when compile with un-initialised var. checking option.
324    o added pkg/salt_plume
325    o script to test restart (for now, in MITgcm_contrib/jmc_script)
326    o pkg/seaice: new read/write pickup version.
327      read meta file and write only fields which are needed to restart.
328      ( same logic as main pickup file ; also using pickupStrictlyMatch )
329    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
330    o lab_sea.hb87: modify the domain & update output.hb87.txt :
331      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
332      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
333      process. Fixed here by closing the domain at the Northern boundary.
334    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
335    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
336      a set of consecutive levels in/from a 3-D array.
337    o pkg/ptracers:
338      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
339      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
340    
341    checkpoint59j
342    o in pkgs: dic, obcs, offline, rbcs:
343      standard way to compute coeff. for time interpolation between 2 time reccords
344      which retains full precision (& make results less dependent on compiler).
345      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
346    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
347      packages instead of reading ice cover and wind speed separately
348    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
349     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
350      to allow to compile customized code before the update)
351  o cleaning-up:  o cleaning-up:
352    - fix CPP instruction syntax in pkg/obcs    - fix CPP instruction syntax in pkg/obcs
353    - replace (some) call to MDSIO S/R with call to RW interface S/R ; and    - replace (some) call to MDSIO S/R with call to RW interface S/R ; and

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