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revision 1.905 by mlosch, Wed Nov 7 11:13:21 2007 UTC revision 1.1020 by jmc, Sat Sep 6 17:55:27 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 add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
8      and rename:
9      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
10      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
11    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
12    
13    checkpoint61c
14    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
15      to add mass source/sink of fluid in the interior (3-D generalisation
16      of oceanic real-fresh water flux).
17    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
18    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
19    o new pkg: down_slope
20      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
21      - presently, modify T & S inland (dwnslp_calc_rho.F).
22        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
23      - implementation for ocean in P-coords not tested.
24      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
25    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
26      (to facilitate conversion of oceanic pkg to p-coordinate).
27    o change FIND_RHO to FIND_RHO_2D :
28      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
29    o new pkg: cheapaml
30    
31    checkpoint61b
32    o exch2:
33      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
34      - no longer depend on the order sequence (N,S,E,W).
35      - 3rd exchange no longer needed (tested with 24 tiles).
36      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
37      - exch_UV_A-grid readily available (but not yet tested).
38      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
39      (both are no longer needed) in exch_uv: no effect in forward run; but
40       get truncation error differences with adjoint exch.
41    o exch2:
42     - change index-bounds storage (moved from target to local tile,
43       more intuitive this way) ; rename/remove some variables.
44     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
45    
46    checkpoint61a
47    o exch2/matlab-topology-generator:
48      fix bug in index bounds for N-S internal exchange (hard to tell if this
49      had any effect on the solution).
50    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
51      is exceeded
52    o testreport: modify syntax of awk, so that it works also with
53      awk, and not only with nawk and gawk
54    
55    checkpoint61
56    o autodiff
57      Change default for TAF usage by removing argument '-nonew_arg'
58      This changes TAF subroutine argument list (ordering of active var.)
59      Omission of this flag leads to incompatibility w.r.t. TAMC
60      To restore TAMC-compatibility, need following modifs:
61      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
62      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
63      Tested TAF version is 1.9.22
64      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
65    
66    checkpoint60
67    --->>> This is the last checkpoint for which generating the adjoint
68    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
69    --->>> by default.
70    --->>> Future checkpoints will ommit this flag by default.
71    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
72    o pkg/grdchk: Add gradient check to etan0 perturbations.
73    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
74    o pkg/autodiff: more flexibility in zeroadj.
75      model/src: modifying do_oceanic_phys.F accordingly.
76    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
77    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
78      special setup of gmredi for which the adjoint is stable
79      enough for parameter optimization.
80    o bridging the gap between eddy stress and GM.
81      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
82          along with a change in CPP option (now ALLOW_EDDYPSI).
83      -> when using GM w/ GM_AdvForm:
84          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
85          is applied either in the tracer Eq. or in momentum Eq.
86          depending on data.gmredi (intro. GM_InMomAsStress).
87      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
88      The key modifications are in model/src/taueddy_external_forcing.F
89      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
90    
91    checkpoint59r
92    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
93      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
94      fix option to read coriolis(@ cell-corner) from files with CS-grid.
95    o pkg/mnc: add some attributes to standard 1D-coordinate variables
96    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
97      mass points, when using mnc for output
98      - add runtime parameter (missing_value, missing_value_int) to override
99        default (which is the value of getcon('UNDEF'))
100    o pkg/mnc: prepare mnc for the actual use of missing values with the
101      diagnostics package: small fix in mnc_cw_readwrite.template and more
102      initialisation of never used fields
103      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
104      versions
105    o pkg/thsice/thsice_ini_vars.F added default initial values so that
106      thermodynamics sea ice solver does not blow up when some initial fields
107      are missing.
108    o move from external_forcing_surf.F to ini_forcing.F
109      the p-coord. hack consisting in using pLoad to set phi0surf ;
110      update output of tutorial_global_oce_in_p (affected @ truncation level).
111    o Freshen up a bit hs94.1x64x5, notably:
112      remove rotationPeriod and tRef=5*0. (adjoint only), and add
113      exactConserv=.TRUE.
114    o pkg/generic_advdiff:
115      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
116      applies to files where Temperature & Salinity 2nd Order moments are used.
117    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
118      this uses a dynamically allocated internal state data structure
119      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
120      and requires a fortran 90 compiler
121    
122    checkpoint59q
123    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
124       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
125    o Refresh tutorial_global_oce_biogeo, notably:
126      - change bathymetry (put back seamounts in ACC, use hFacs)
127      - change EOS (POLY3 --> JMD95Z)
128      - use Bryan-Lewis vertical diffusivity
129      - use multidimensional advection
130      - remove old virtual virtual in dic pkg, now done through ptracer pkg
131      - change a couple of parameters in dic pkg
132    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
133    o pkg/obcs: change default to OBCSfixTopo = .true.,
134      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
135      - replace "debugMode" with "debugLevel .GE. debLevB"
136    o implementation of TAF directives for gchem,cfc,dic
137    o remove "exp5" (replaced by tutorial_deep_convection).
138    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
139      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
140      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
141      --> changes results in exp4, seaice_obcs
142    o tutorial_deep_convection :
143      update the set-up and increase resolution and domain size ; start
144      from pseudo initial conditions = output at t=120mn in order to see
145      something happening when running testreport.
146    o pkg/seaice: add os7mp as an advection scheme
147                  add check for advection schemes
148                  add a flag for restoring T and S underneath sea ice
149    o pkg/my82: add netcdf-support and diagnostics
150    o thsice pkg:
151      - Now hsMax limits snow height by turning it into ice following
152        flooding scheme (and now conserving energy)
153      - Slight rewriting of the formula in thsice_calc_thick.F
154      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
155      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
156    
157    checkpoint59p
158    o gchem / dic / cfc :
159      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
160      - add new parameter files: "data.dic" & "data.cfc" ;
161      - various re-arrangement in initialisation & header file ;
162      - fix tutorial_global_oce_biogeo for multi-threaded test.
163    o pkg/dic: test for "pickup_dic" file when restarting ;
164      if no pickup-file, can restart with a re-initialised pH (same as it did
165      before) providing pickupStrictlyMatch is set to False.
166    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
167      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
168    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
169      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
170    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
171     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
172       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
173    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
174       scheme to use for vorticty-term ;
175     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
176       (with default selectVortScheme, return to original discretisation)
177     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
178    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
179    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
180      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
181      also fix diagnostics VISCAHW & VISCA4W.
182    
183    checkpoint59o
184    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
185    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
186      move a few statemens out the main loop into separate loops
187    o pkg/shelfice:
188      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
189        (kg/m^2/s), does not break tests, because in verification/isomip,
190        rhoConstFresh=rhoConst (by accident)
191      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
192      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
193        new file model/src/seawater.F, so that they are available for all pkgs.
194      - convert potential temperature into in-situ temperature. This changes the
195        isomip tests => update tests
196    o add a flag writePickupAtEnd (default=true) to be able to suppress
197      writing a pickup at the last timestep
198    o tools/mpack-1.6 :
199      - disable automake (not working) and autoconf (not needed).
200      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
201        also cleaner with much less compilation warnings.
202    o pkg/profiles:
203      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
204      (for "less than 32 characters name" compiler requirement)
205    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
206      conditions that have a different sampling frequency than S/T/U/V obcs
207    o pkg/diagnostics (stats-diags):
208      - fix global Min/Max in case 1 processor get only empty tiles
209    o genmake2: replace (4 times)
210         make genmake_tc_1.o >> genmake_warnings 2>&1
211      with
212         COMM="$CC $CFLAGS -c genmake_tc_1.c"
213         echo $COMM >> genmake_warnings
214         $COMM >> genmake_warnings 2>&1
215      to make genmake2 always see the value of CC as specified in the optfile.
216    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
217      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
218      - modify verification advect_cs test to test SOM-advection on CS-grid.
219    o pkg/ctrl:
220      - Rewrite of ctrl_map_ini_ecco.F,
221        introducing a generic routine (ctrl_map_ini_gen.F).
222      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
223    
224    checkpoint59n
225    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
226      number in dedicate array "hdiag":
227      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
228        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
229      - many small changes (integer format) for large number of diagnostics
230      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
231        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
232    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
233      usingSphericalGrid, this allows to define the rotated grid coordinates
234      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
235      geographical coordinates according to the inverse of the rotation defined
236      by the Euler angles, so that Coriolis parameter and online-interpolation by
237      exf works with the geographical coordinates on XC/YC/XG/YG.
238      Naturally, this feature does not work with all packages, so some
239      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
240      profiles), because there the coordinates are assumed to be regular
241      spherical grid coordinates.
242    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
243      - introduce isopycnal diffusion coefficient control.
244    o tools/adjoint_options:
245      - additional control vector components.
246    o pkg/mnc: have mnc create marginally meaning full coordinate variables
247      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
248    o pkg/mypackage:
249      - add example of read/write pickup for state-var ;
250      - add entry points to the main code for state-vars diags & write-pickup.
251    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
252      transitions for useExfYearlyFields
253      - add new subroutine that determines the file to read from for
254        use*YearlyFields = .TRUE. and .FALSE.
255      - add a verification experiment to global_with_exf that tests
256        useExfYearlyFields with USE_EXF_INTERPOLATION defined
257    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
258      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
259      subroutines (which could be generated from a template, because they are
260      almost identical), for now they are included in obcs_prescribe_read.F for
261      simplicity
262    o pkg/exf:
263      - add a little more diagnostic to exf_interp_read (in analogy to
264        mds_read_field, can be turned off with debugLevel < debugLevA=1)
265      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
266        ugly but fast by unrolling short inner loops, inserting a unroll=8
267        directive in routine lagran, and splitting a loop and making do while the
268        outermost loop (the latter requires the intoduction of index arrays)
269    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
270    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
271      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
272    o verification/seaice_obcs: updated for restart test and latest options
273    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
274      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
275      for now this is only available for the C-grid code and also within
276      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
277    
278    checkpoint59m
279    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
280      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
281    o gad_som : fix flux output (& diagnostics) to have same units as other  
282      advection scheme fluxes (was previously multiplied by deltaT).  
283    o added verification/seaice_obcs both to test seaice open boundaries
284      and to provide an example matlab scrpt for generating them
285    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
286    o pkg/salt_plume: clean up salt_plume_frac.F to
287      remove redundancy in PlumeMethod 1 and 4
288    o pkg/kpp: added saltplume diagnostics
289    o pkg/obcs and pkg/seaice:
290      - do not set uice and vice to zero when OB*icefile are unspecified
291      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
292      - moved seaice tracer obcs after call to seaice_growth
293    o pkg/salt_plume: added various options for salt plume depth
294      criterion and for vertical distribution of the salt
295    
296    checkpoint59l
297    o pkg/ptracers: new version of ptracers pickup:
298      read meta file and write only fields which are needed to restart.
299      ( same logic as main pickup file ; also using pickupStrictlyMatch )
300    o pkg/seaice:
301      - add timescale for melting due to warm mixed layer as a means of
302        setting SEAICE_availHeatFrac more conveniently
303      - add a CPP-flag/runtime parameter check for flooding algorithm
304      - reformulated availHeat in seaice_growth.F to be independent of AREA
305    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
306      unit changes
307    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
308    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
309      SX vector computer.
310    o pkg/seaice:
311      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
312        seaice forcing fields can now be read only through pkg/exf
313      - removed some unused halos
314    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
315    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
316      or U/VICE from U/VWIND before computing U/VSTRESS
317    
318    checkpoint59k
319    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
320      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
321    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
322      all experiments pass when compile with un-initialised var. checking option.
323    o added pkg/salt_plume
324    o script to test restart (for now, in MITgcm_contrib/jmc_script)
325    o pkg/seaice: new read/write pickup version.
326      read meta file and write only fields which are needed to restart.
327      ( same logic as main pickup file ; also using pickupStrictlyMatch )
328    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
329    o lab_sea.hb87: modify the domain & update output.hb87.txt :
330      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
331      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
332      process. Fixed here by closing the domain at the Northern boundary.
333    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
334    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
335      a set of consecutive levels in/from a 3-D array.
336    o pkg/ptracers:
337      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
338      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
339    
340    checkpoint59j
341    o in pkgs: dic, obcs, offline, rbcs:
342      standard way to compute coeff. for time interpolation between 2 time reccords
343      which retains full precision (& make results less dependent on compiler).
344      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
345  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
346    packages instead of reading ice cover and wind speed separately    packages instead of reading ice cover and wind speed separately
347  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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