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revision 1.912 by dimitri, Wed Nov 28 00:18:16 2007 UTC revision 1.1040 by jmc, Mon Nov 17 23:13:41 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: add parameter for extrapolation of temp up to the surface
8       and option to prevent negative evap (in bulk_largeyeager04 only).
9    o Prather Advection scheme: fix tracer conservation for divergent flow
10      (e.g., when using NonLin Free-Surface).
11    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
12    o gmredi (Visbeck-variable-K):
13     - add more parameters to Visbeck-variable-K.
14     - use a 5 points average for dSigmaR in Visbeck-K calculation
15       (more "homogenous": same stencil and same weights as in dSigmaH)
16     - update output of ideal_2D_oce experiment.
17    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
18      (#undef REAL4_IS_SLOW)
19     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
20       coordinate variable
21     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
22       (surface forcing fields), removes some of the functionality
23     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
24     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
25       probably not all: copy _RS surface flux fields to RL field before
26       calling DIAGNOSTICS_FILL
27     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
28       real*4 (CALL EXCH_*_RS) versions.
29     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
30       (generate new output).
31    
32    checkpoint61e
33    o gmredi (Visbeck-variable-K):
34      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
35      - change computation of Visbeck-K where Slope > Smax :        
36        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
37        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
38    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
39      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
40    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
41    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
42      does not become too large (to avoid precision problems in implicit-diffusion
43      solver); update ideal_2D_oce output.
44    o pkg ggl90:
45      - in ggl90_cal.F: compute only one set of visc/diff, used to
46        step forward TKE/T/S/momentum
47      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
48        have Prandlt =1)
49    o gmredi (fm07):
50      - add lower limit on Transition layer thickness + lower limit on 1/lambda
51      - allow to set few more params from data.gmredi
52    o pkg ggl90:
53          - add missing sqrt(2) factor in computation of mixing length
54            scale in ggl90_calc.F
55            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
56    
57    checkpoint61d
58    o adjoint modifs
59      - adapt to new field rhoInSitu
60      - allow to revert from StoreDynVars2D, StoreDynVars3D
61        to individual fields
62        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
63    o store 3-D (in-situ) density in commom block (DYNVARS.h)
64     - save 1 rho computation.
65     - no longer modify T & S inland when using down_slope pkg.
66    o gad_som : allow to switch to SOM advection for T & S without corresponding
67      pickup files (using new S/R: MDS_CHECK4FILE).
68    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
69      (for useSingleCpuIO to work in multi-threaded)
70    o pkg/shelfice:
71     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
72       with SHELFICEtopoFile in data.shelfice
73     - move code for reading ice shelf topography and modifying hFacC into separate
74       subroutines of the shelfice package
75     - separate initialisation of "fixed" and "variable" variables
76     - kTopC is not (yet) replaced by kSurfC, although this is possible
77    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
78    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
79      and rename:
80      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
81      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
82    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
83    
84    checkpoint61c
85    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
86      to add mass source/sink of fluid in the interior (3-D generalisation
87      of oceanic real-fresh water flux).
88    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
89    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
90    o new pkg: down_slope
91      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
92      - presently, modify T & S inland (dwnslp_calc_rho.F).
93        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
94      - implementation for ocean in P-coords not tested.
95      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
96    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
97      (to facilitate conversion of oceanic pkg to p-coordinate).
98    o change FIND_RHO to FIND_RHO_2D :
99      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
100    o new pkg: cheapaml
101    
102    checkpoint61b
103    o exch2:
104      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
105      - no longer depend on the order sequence (N,S,E,W).
106      - 3rd exchange no longer needed (tested with 24 tiles).
107      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
108      - exch_UV_A-grid readily available (but not yet tested).
109      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
110      (both are no longer needed) in exch_uv: no effect in forward run; but
111       get truncation error differences with adjoint exch.
112    o exch2:
113     - change index-bounds storage (moved from target to local tile,
114       more intuitive this way) ; rename/remove some variables.
115     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
116    
117    checkpoint61a
118    o exch2/matlab-topology-generator:
119      fix bug in index bounds for N-S internal exchange (hard to tell if this
120      had any effect on the solution).
121    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
122      is exceeded
123    o testreport: modify syntax of awk, so that it works also with
124      awk, and not only with nawk and gawk
125    
126    checkpoint61
127    o autodiff
128      Change default for TAF usage by removing argument '-nonew_arg'
129      This changes TAF subroutine argument list (ordering of active var.)
130      Omission of this flag leads to incompatibility w.r.t. TAMC
131      To restore TAMC-compatibility, need following modifs:
132      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
133      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
134      Tested TAF version is 1.9.22
135      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
136    
137    checkpoint60
138    --->>> This is the last checkpoint for which generating the adjoint
139    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
140    --->>> by default.
141    --->>> Future checkpoints will ommit this flag by default.
142    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
143    o pkg/grdchk: Add gradient check to etan0 perturbations.
144    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
145    o pkg/autodiff: more flexibility in zeroadj.
146      model/src: modifying do_oceanic_phys.F accordingly.
147    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
148    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
149      special setup of gmredi for which the adjoint is stable
150      enough for parameter optimization.
151    o bridging the gap between eddy stress and GM.
152      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
153          along with a change in CPP option (now ALLOW_EDDYPSI).
154      -> when using GM w/ GM_AdvForm:
155          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
156          is applied either in the tracer Eq. or in momentum Eq.
157          depending on data.gmredi (intro. GM_InMomAsStress).
158      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
159      The key modifications are in model/src/taueddy_external_forcing.F
160      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
161    
162    checkpoint59r
163    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
164      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
165      fix option to read coriolis(@ cell-corner) from files with CS-grid.
166    o pkg/mnc: add some attributes to standard 1D-coordinate variables
167    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
168      mass points, when using mnc for output
169      - add runtime parameter (missing_value, missing_value_int) to override
170        default (which is the value of getcon('UNDEF'))
171    o pkg/mnc: prepare mnc for the actual use of missing values with the
172      diagnostics package: small fix in mnc_cw_readwrite.template and more
173      initialisation of never used fields
174      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
175      versions
176    o pkg/thsice/thsice_ini_vars.F added default initial values so that
177      thermodynamics sea ice solver does not blow up when some initial fields
178      are missing.
179    o move from external_forcing_surf.F to ini_forcing.F
180      the p-coord. hack consisting in using pLoad to set phi0surf ;
181      update output of tutorial_global_oce_in_p (affected @ truncation level).
182    o Freshen up a bit hs94.1x64x5, notably:
183      remove rotationPeriod and tRef=5*0. (adjoint only), and add
184      exactConserv=.TRUE.
185    o pkg/generic_advdiff:
186      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
187      applies to files where Temperature & Salinity 2nd Order moments are used.
188    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
189      this uses a dynamically allocated internal state data structure
190      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
191      and requires a fortran 90 compiler
192    
193    checkpoint59q
194    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
195       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
196    o Refresh tutorial_global_oce_biogeo, notably:
197      - change bathymetry (put back seamounts in ACC, use hFacs)
198      - change EOS (POLY3 --> JMD95Z)
199      - use Bryan-Lewis vertical diffusivity
200      - use multidimensional advection
201      - remove old virtual virtual in dic pkg, now done through ptracer pkg
202      - change a couple of parameters in dic pkg
203    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
204    o pkg/obcs: change default to OBCSfixTopo = .true.,
205      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
206      - replace "debugMode" with "debugLevel .GE. debLevB"
207    o implementation of TAF directives for gchem,cfc,dic
208    o remove "exp5" (replaced by tutorial_deep_convection).
209    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
210      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
211      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
212      --> changes results in exp4, seaice_obcs
213    o tutorial_deep_convection :
214      update the set-up and increase resolution and domain size ; start
215      from pseudo initial conditions = output at t=120mn in order to see
216      something happening when running testreport.
217    o pkg/seaice: add os7mp as an advection scheme
218                  add check for advection schemes
219                  add a flag for restoring T and S underneath sea ice
220    o pkg/my82: add netcdf-support and diagnostics
221    o thsice pkg:
222      - Now hsMax limits snow height by turning it into ice following
223        flooding scheme (and now conserving energy)
224      - Slight rewriting of the formula in thsice_calc_thick.F
225      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
226      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
227    
228    checkpoint59p
229    o gchem / dic / cfc :
230      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
231      - add new parameter files: "data.dic" & "data.cfc" ;
232      - various re-arrangement in initialisation & header file ;
233      - fix tutorial_global_oce_biogeo for multi-threaded test.
234    o pkg/dic: test for "pickup_dic" file when restarting ;
235      if no pickup-file, can restart with a re-initialised pH (same as it did
236      before) providing pickupStrictlyMatch is set to False.
237    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
238      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
239    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
240      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
241    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
242     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
243       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
244    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
245       scheme to use for vorticty-term ;
246     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
247       (with default selectVortScheme, return to original discretisation)
248     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
249    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
250    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
251      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
252      also fix diagnostics VISCAHW & VISCA4W.
253    
254    checkpoint59o
255    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
256    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
257      move a few statemens out the main loop into separate loops
258    o pkg/shelfice:
259      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
260        (kg/m^2/s), does not break tests, because in verification/isomip,
261        rhoConstFresh=rhoConst (by accident)
262      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
263      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
264        new file model/src/seawater.F, so that they are available for all pkgs.
265      - convert potential temperature into in-situ temperature. This changes the
266        isomip tests => update tests
267    o add a flag writePickupAtEnd (default=true) to be able to suppress
268      writing a pickup at the last timestep
269    o tools/mpack-1.6 :
270      - disable automake (not working) and autoconf (not needed).
271      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
272        also cleaner with much less compilation warnings.
273    o pkg/profiles:
274      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
275      (for "less than 32 characters name" compiler requirement)
276    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
277      conditions that have a different sampling frequency than S/T/U/V obcs
278    o pkg/diagnostics (stats-diags):
279      - fix global Min/Max in case 1 processor get only empty tiles
280    o genmake2: replace (4 times)
281         make genmake_tc_1.o >> genmake_warnings 2>&1
282      with
283         COMM="$CC $CFLAGS -c genmake_tc_1.c"
284         echo $COMM >> genmake_warnings
285         $COMM >> genmake_warnings 2>&1
286      to make genmake2 always see the value of CC as specified in the optfile.
287    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
288      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
289      - modify verification advect_cs test to test SOM-advection on CS-grid.
290    o pkg/ctrl:
291      - Rewrite of ctrl_map_ini_ecco.F,
292        introducing a generic routine (ctrl_map_ini_gen.F).
293      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
294    
295    checkpoint59n
296    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
297      number in dedicate array "hdiag":
298      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
299        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
300      - many small changes (integer format) for large number of diagnostics
301      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
302        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
303    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
304      usingSphericalGrid, this allows to define the rotated grid coordinates
305      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
306      geographical coordinates according to the inverse of the rotation defined
307      by the Euler angles, so that Coriolis parameter and online-interpolation by
308      exf works with the geographical coordinates on XC/YC/XG/YG.
309      Naturally, this feature does not work with all packages, so some
310      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
311      profiles), because there the coordinates are assumed to be regular
312      spherical grid coordinates.
313    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
314      - introduce isopycnal diffusion coefficient control.
315    o tools/adjoint_options:
316      - additional control vector components.
317    o pkg/mnc: have mnc create marginally meaning full coordinate variables
318      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
319    o pkg/mypackage:
320      - add example of read/write pickup for state-var ;
321      - add entry points to the main code for state-vars diags & write-pickup.
322    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
323      transitions for useExfYearlyFields
324      - add new subroutine that determines the file to read from for
325        use*YearlyFields = .TRUE. and .FALSE.
326      - add a verification experiment to global_with_exf that tests
327        useExfYearlyFields with USE_EXF_INTERPOLATION defined
328    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
329      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
330      subroutines (which could be generated from a template, because they are
331      almost identical), for now they are included in obcs_prescribe_read.F for
332      simplicity
333    o pkg/exf:
334      - add a little more diagnostic to exf_interp_read (in analogy to
335        mds_read_field, can be turned off with debugLevel < debugLevA=1)
336      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
337        ugly but fast by unrolling short inner loops, inserting a unroll=8
338        directive in routine lagran, and splitting a loop and making do while the
339        outermost loop (the latter requires the intoduction of index arrays)
340    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
341    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
342      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
343    o verification/seaice_obcs: updated for restart test and latest options
344    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
345      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
346      for now this is only available for the C-grid code and also within
347      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
348    
349    checkpoint59m
350    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
351      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
352    o gad_som : fix flux output (& diagnostics) to have same units as other  
353      advection scheme fluxes (was previously multiplied by deltaT).  
354    o added verification/seaice_obcs both to test seaice open boundaries
355      and to provide an example matlab scrpt for generating them
356    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
357    o pkg/salt_plume: clean up salt_plume_frac.F to
358      remove redundancy in PlumeMethod 1 and 4
359    o pkg/kpp: added saltplume diagnostics
360    o pkg/obcs and pkg/seaice:
361      - do not set uice and vice to zero when OB*icefile are unspecified
362      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
363      - moved seaice tracer obcs after call to seaice_growth
364    o pkg/salt_plume: added various options for salt plume depth
365      criterion and for vertical distribution of the salt
366    
367    checkpoint59l
368    o pkg/ptracers: new version of ptracers pickup:
369      read meta file and write only fields which are needed to restart.
370      ( same logic as main pickup file ; also using pickupStrictlyMatch )
371    o pkg/seaice:
372      - add timescale for melting due to warm mixed layer as a means of
373        setting SEAICE_availHeatFrac more conveniently
374      - add a CPP-flag/runtime parameter check for flooding algorithm
375      - reformulated availHeat in seaice_growth.F to be independent of AREA
376    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
377      unit changes
378    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
379    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
380      SX vector computer.
381    o pkg/seaice:
382      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
383        seaice forcing fields can now be read only through pkg/exf
384      - removed some unused halos
385    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
386    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
387      or U/VICE from U/VWIND before computing U/VSTRESS
388    
389    checkpoint59k
390    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
391      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
392    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
393      all experiments pass when compile with un-initialised var. checking option.
394  o added pkg/salt_plume  o added pkg/salt_plume
395  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
396  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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