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revision 1.916 by dimitri, Mon Dec 3 07:45:27 2007 UTC revision 1.1014 by jmc, Mon Aug 11 22:45:14 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 pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting  o change FIND_RHO to FIND_RHO_2D :
8    UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.    pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
9    o new pkg: cheapaml
10    
11    checkpoint61b
12    o exch2:
13      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
14      - no longer depend on the order sequence (N,S,E,W).
15      - 3rd exchange no longer needed (tested with 24 tiles).
16      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
17      - exch_UV_A-grid readily available (but not yet tested).
18      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
19      (both are no longer needed) in exch_uv: no effect in forward run; but
20       get truncation error differences with adjoint exch.
21    o exch2:
22     - change index-bounds storage (moved from target to local tile,
23       more intuitive this way) ; rename/remove some variables.
24     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
25    
26    checkpoint61a
27    o exch2/matlab-topology-generator:
28      fix bug in index bounds for N-S internal exchange (hard to tell if this
29      had any effect on the solution).
30    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
31      is exceeded
32    o testreport: modify syntax of awk, so that it works also with
33      awk, and not only with nawk and gawk
34    
35    checkpoint61
36    o autodiff
37      Change default for TAF usage by removing argument '-nonew_arg'
38      This changes TAF subroutine argument list (ordering of active var.)
39      Omission of this flag leads to incompatibility w.r.t. TAMC
40      To restore TAMC-compatibility, need following modifs:
41      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
42      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
43      Tested TAF version is 1.9.22
44      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
45    
46    checkpoint60
47    --->>> This is the last checkpoint for which generating the adjoint
48    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
49    --->>> by default.
50    --->>> Future checkpoints will ommit this flag by default.
51    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
52    o pkg/grdchk: Add gradient check to etan0 perturbations.
53    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
54    o pkg/autodiff: more flexibility in zeroadj.
55      model/src: modifying do_oceanic_phys.F accordingly.
56    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
57    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
58      special setup of gmredi for which the adjoint is stable
59      enough for parameter optimization.
60    o bridging the gap between eddy stress and GM.
61      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
62          along with a change in CPP option (now ALLOW_EDDYPSI).
63      -> when using GM w/ GM_AdvForm:
64          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
65          is applied either in the tracer Eq. or in momentum Eq.
66          depending on data.gmredi (intro. GM_InMomAsStress).
67      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
68      The key modifications are in model/src/taueddy_external_forcing.F
69      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
70    
71    checkpoint59r
72    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
73      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
74      fix option to read coriolis(@ cell-corner) from files with CS-grid.
75    o pkg/mnc: add some attributes to standard 1D-coordinate variables
76    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
77      mass points, when using mnc for output
78      - add runtime parameter (missing_value, missing_value_int) to override
79        default (which is the value of getcon('UNDEF'))
80    o pkg/mnc: prepare mnc for the actual use of missing values with the
81      diagnostics package: small fix in mnc_cw_readwrite.template and more
82      initialisation of never used fields
83      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
84      versions
85    o pkg/thsice/thsice_ini_vars.F added default initial values so that
86      thermodynamics sea ice solver does not blow up when some initial fields
87      are missing.
88    o move from external_forcing_surf.F to ini_forcing.F
89      the p-coord. hack consisting in using pLoad to set phi0surf ;
90      update output of tutorial_global_oce_in_p (affected @ truncation level).
91    o Freshen up a bit hs94.1x64x5, notably:
92      remove rotationPeriod and tRef=5*0. (adjoint only), and add
93      exactConserv=.TRUE.
94    o pkg/generic_advdiff:
95      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
96      applies to files where Temperature & Salinity 2nd Order moments are used.
97    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
98      this uses a dynamically allocated internal state data structure
99      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
100      and requires a fortran 90 compiler
101    
102    checkpoint59q
103    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
104       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
105    o Refresh tutorial_global_oce_biogeo, notably:
106      - change bathymetry (put back seamounts in ACC, use hFacs)
107      - change EOS (POLY3 --> JMD95Z)
108      - use Bryan-Lewis vertical diffusivity
109      - use multidimensional advection
110      - remove old virtual virtual in dic pkg, now done through ptracer pkg
111      - change a couple of parameters in dic pkg
112    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
113    o pkg/obcs: change default to OBCSfixTopo = .true.,
114      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
115      - replace "debugMode" with "debugLevel .GE. debLevB"
116    o implementation of TAF directives for gchem,cfc,dic
117    o remove "exp5" (replaced by tutorial_deep_convection).
118    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
119      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
120      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
121      --> changes results in exp4, seaice_obcs
122    o tutorial_deep_convection :
123      update the set-up and increase resolution and domain size ; start
124      from pseudo initial conditions = output at t=120mn in order to see
125      something happening when running testreport.
126    o pkg/seaice: add os7mp as an advection scheme
127                  add check for advection schemes
128                  add a flag for restoring T and S underneath sea ice
129    o pkg/my82: add netcdf-support and diagnostics
130    o thsice pkg:
131      - Now hsMax limits snow height by turning it into ice following
132        flooding scheme (and now conserving energy)
133      - Slight rewriting of the formula in thsice_calc_thick.F
134      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
135      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
136    
137    checkpoint59p
138    o gchem / dic / cfc :
139      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
140      - add new parameter files: "data.dic" & "data.cfc" ;
141      - various re-arrangement in initialisation & header file ;
142      - fix tutorial_global_oce_biogeo for multi-threaded test.
143    o pkg/dic: test for "pickup_dic" file when restarting ;
144      if no pickup-file, can restart with a re-initialised pH (same as it did
145      before) providing pickupStrictlyMatch is set to False.
146    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
147      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
148    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
149      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
150    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
151     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
152       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
153    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
154       scheme to use for vorticty-term ;
155     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
156       (with default selectVortScheme, return to original discretisation)
157     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
158    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
159    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
160      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
161      also fix diagnostics VISCAHW & VISCA4W.
162    
163    checkpoint59o
164    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
165    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
166      move a few statemens out the main loop into separate loops
167    o pkg/shelfice:
168      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
169        (kg/m^2/s), does not break tests, because in verification/isomip,
170        rhoConstFresh=rhoConst (by accident)
171      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
172      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
173        new file model/src/seawater.F, so that they are available for all pkgs.
174      - convert potential temperature into in-situ temperature. This changes the
175        isomip tests => update tests
176    o add a flag writePickupAtEnd (default=true) to be able to suppress
177      writing a pickup at the last timestep
178    o tools/mpack-1.6 :
179      - disable automake (not working) and autoconf (not needed).
180      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
181        also cleaner with much less compilation warnings.
182    o pkg/profiles:
183      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
184      (for "less than 32 characters name" compiler requirement)
185    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
186      conditions that have a different sampling frequency than S/T/U/V obcs
187    o pkg/diagnostics (stats-diags):
188      - fix global Min/Max in case 1 processor get only empty tiles
189    o genmake2: replace (4 times)
190         make genmake_tc_1.o >> genmake_warnings 2>&1
191      with
192         COMM="$CC $CFLAGS -c genmake_tc_1.c"
193         echo $COMM >> genmake_warnings
194         $COMM >> genmake_warnings 2>&1
195      to make genmake2 always see the value of CC as specified in the optfile.
196    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
197      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
198      - modify verification advect_cs test to test SOM-advection on CS-grid.
199    o pkg/ctrl:
200      - Rewrite of ctrl_map_ini_ecco.F,
201        introducing a generic routine (ctrl_map_ini_gen.F).
202      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
203    
204    checkpoint59n
205    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
206      number in dedicate array "hdiag":
207      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
208        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
209      - many small changes (integer format) for large number of diagnostics
210      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
211        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
212    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
213      usingSphericalGrid, this allows to define the rotated grid coordinates
214      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
215      geographical coordinates according to the inverse of the rotation defined
216      by the Euler angles, so that Coriolis parameter and online-interpolation by
217      exf works with the geographical coordinates on XC/YC/XG/YG.
218      Naturally, this feature does not work with all packages, so some
219      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
220      profiles), because there the coordinates are assumed to be regular
221      spherical grid coordinates.
222    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
223      - introduce isopycnal diffusion coefficient control.
224    o tools/adjoint_options:
225      - additional control vector components.
226    o pkg/mnc: have mnc create marginally meaning full coordinate variables
227      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
228    o pkg/mypackage:
229      - add example of read/write pickup for state-var ;
230      - add entry points to the main code for state-vars diags & write-pickup.
231    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
232      transitions for useExfYearlyFields
233      - add new subroutine that determines the file to read from for
234        use*YearlyFields = .TRUE. and .FALSE.
235      - add a verification experiment to global_with_exf that tests
236        useExfYearlyFields with USE_EXF_INTERPOLATION defined
237    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
238      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
239      subroutines (which could be generated from a template, because they are
240      almost identical), for now they are included in obcs_prescribe_read.F for
241      simplicity
242    o pkg/exf:
243      - add a little more diagnostic to exf_interp_read (in analogy to
244        mds_read_field, can be turned off with debugLevel < debugLevA=1)
245      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
246        ugly but fast by unrolling short inner loops, inserting a unroll=8
247        directive in routine lagran, and splitting a loop and making do while the
248        outermost loop (the latter requires the intoduction of index arrays)
249    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
250    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
251      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
252    o verification/seaice_obcs: updated for restart test and latest options
253    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
254      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
255      for now this is only available for the C-grid code and also within
256      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
257    
258    checkpoint59m
259    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
260      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
261    o gad_som : fix flux output (& diagnostics) to have same units as other  
262      advection scheme fluxes (was previously multiplied by deltaT).  
263    o added verification/seaice_obcs both to test seaice open boundaries
264      and to provide an example matlab scrpt for generating them
265    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
266    o pkg/salt_plume: clean up salt_plume_frac.F to
267      remove redundancy in PlumeMethod 1 and 4
268    o pkg/kpp: added saltplume diagnostics
269    o pkg/obcs and pkg/seaice:
270      - do not set uice and vice to zero when OB*icefile are unspecified
271      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
272      - moved seaice tracer obcs after call to seaice_growth
273    o pkg/salt_plume: added various options for salt plume depth
274      criterion and for vertical distribution of the salt
275    
276    checkpoint59l
277    o pkg/ptracers: new version of ptracers pickup:
278      read meta file and write only fields which are needed to restart.
279      ( same logic as main pickup file ; also using pickupStrictlyMatch )
280    o pkg/seaice:
281      - add timescale for melting due to warm mixed layer as a means of
282        setting SEAICE_availHeatFrac more conveniently
283      - add a CPP-flag/runtime parameter check for flooding algorithm
284      - reformulated availHeat in seaice_growth.F to be independent of AREA
285    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
286      unit changes
287    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
288    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
289      SX vector computer.
290    o pkg/seaice:
291      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
292        seaice forcing fields can now be read only through pkg/exf
293      - removed some unused halos
294    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
295    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
296      or U/VICE from U/VWIND before computing U/VSTRESS
297    
298  checkpoint59k  checkpoint59k
299  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
300    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
301  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
302    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
303  o added pkg/salt_plume  o added pkg/salt_plume
304  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
305  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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