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revision 1.935 by dimitri, Thu Jan 10 23:32:15 2008 UTC revision 1.1047 by jmc, Mon Dec 29 03:45:44 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/seaice/seaice_growth.F: use a different time constant for freezing  checkpoint61g
8    ice due to supercooled sea water, hardwired to SEAICE_deltaTtherm/0.1  o pkg/flt:
9  o gad_som : fix flux output (& diagnostics) to have same units as other    - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
10    advection scheme fluxes (was previously multiplied by deltaT).     + make OPTIONS file more standard.
11      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
12      - fix _BYTESWAPIO CPP-Flag
13      - standard reading of file-parameter "data.flt"
14      - fix argument list of S/R FLT_RESTART
15      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
16    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
17    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
18      a still unfixed compiler/optimization bug
19    
20    checkpoint61f
21    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
22      update results of global_ocean.cs32x15.icedyn test.
23    o move getcon.F from model/src to pkg/fizhi.
24    o pkg/exf: add parameter for extrapolation of temp up to the surface
25       and option to prevent negative evap (in bulk_largeyeager04 only).
26    o Prather Advection scheme: fix tracer conservation for divergent flow
27      (e.g., when using NonLin Free-Surface).
28    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
29    o gmredi (Visbeck-variable-K):
30     - add more parameters to Visbeck-variable-K.
31     - use a 5 points average for dSigmaR in Visbeck-K calculation
32       (more "homogenous": same stencil and same weights as in dSigmaH)
33     - update output of ideal_2D_oce experiment.
34    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
35      (#undef REAL4_IS_SLOW)
36     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
37       coordinate variable
38     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
39       (surface forcing fields), removes some of the functionality
40     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
41     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
42       probably not all: copy _RS surface flux fields to RL field before
43       calling DIAGNOSTICS_FILL
44     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
45       real*4 (CALL EXCH_*_RS) versions.
46     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
47       (generate new output).
48    
49    checkpoint61e
50    o gmredi (Visbeck-variable-K):
51      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
52      - change computation of Visbeck-K where Slope > Smax :        
53        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
54        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
55    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
56      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
57    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
58    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
59      does not become too large (to avoid precision problems in implicit-diffusion
60      solver); update ideal_2D_oce output.
61    o pkg ggl90:
62      - in ggl90_cal.F: compute only one set of visc/diff, used to
63        step forward TKE/T/S/momentum
64      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
65        have Prandlt =1)
66    o gmredi (fm07):
67      - add lower limit on Transition layer thickness + lower limit on 1/lambda
68      - allow to set few more params from data.gmredi
69    o pkg ggl90:
70          - add missing sqrt(2) factor in computation of mixing length
71            scale in ggl90_calc.F
72            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
73    
74    checkpoint61d
75    o adjoint modifs
76      - adapt to new field rhoInSitu
77      - allow to revert from StoreDynVars2D, StoreDynVars3D
78        to individual fields
79        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
80    o store 3-D (in-situ) density in commom block (DYNVARS.h)
81     - save 1 rho computation.
82     - no longer modify T & S inland when using down_slope pkg.
83    o gad_som : allow to switch to SOM advection for T & S without corresponding
84      pickup files (using new S/R: MDS_CHECK4FILE).
85    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
86      (for useSingleCpuIO to work in multi-threaded)
87    o pkg/shelfice:
88     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
89       with SHELFICEtopoFile in data.shelfice
90     - move code for reading ice shelf topography and modifying hFacC into separate
91       subroutines of the shelfice package
92     - separate initialisation of "fixed" and "variable" variables
93     - kTopC is not (yet) replaced by kSurfC, although this is possible
94    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
95    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
96      and rename:
97      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
98      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
99    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
100    
101    checkpoint61c
102    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
103      to add mass source/sink of fluid in the interior (3-D generalisation
104      of oceanic real-fresh water flux).
105    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
106    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
107    o new pkg: down_slope
108      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
109      - presently, modify T & S inland (dwnslp_calc_rho.F).
110        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
111      - implementation for ocean in P-coords not tested.
112      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
113    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
114      (to facilitate conversion of oceanic pkg to p-coordinate).
115    o change FIND_RHO to FIND_RHO_2D :
116      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
117    o new pkg: cheapaml
118    
119    checkpoint61b
120    o exch2:
121      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
122      - no longer depend on the order sequence (N,S,E,W).
123      - 3rd exchange no longer needed (tested with 24 tiles).
124      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
125      - exch_UV_A-grid readily available (but not yet tested).
126      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
127      (both are no longer needed) in exch_uv: no effect in forward run; but
128       get truncation error differences with adjoint exch.
129    o exch2:
130     - change index-bounds storage (moved from target to local tile,
131       more intuitive this way) ; rename/remove some variables.
132     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
133    
134    checkpoint61a
135    o exch2/matlab-topology-generator:
136      fix bug in index bounds for N-S internal exchange (hard to tell if this
137      had any effect on the solution).
138    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
139      is exceeded
140    o testreport: modify syntax of awk, so that it works also with
141      awk, and not only with nawk and gawk
142    
143    checkpoint61
144    o autodiff
145      Change default for TAF usage by removing argument '-nonew_arg'
146      This changes TAF subroutine argument list (ordering of active var.)
147      Omission of this flag leads to incompatibility w.r.t. TAMC
148      To restore TAMC-compatibility, need following modifs:
149      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
150      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
151      Tested TAF version is 1.9.22
152      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
153    
154    checkpoint60
155    --->>> This is the last checkpoint for which generating the adjoint
156    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
157    --->>> by default.
158    --->>> Future checkpoints will ommit this flag by default.
159    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
160    o pkg/grdchk: Add gradient check to etan0 perturbations.
161    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
162    o pkg/autodiff: more flexibility in zeroadj.
163      model/src: modifying do_oceanic_phys.F accordingly.
164    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
165    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
166      special setup of gmredi for which the adjoint is stable
167      enough for parameter optimization.
168    o bridging the gap between eddy stress and GM.
169      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
170          along with a change in CPP option (now ALLOW_EDDYPSI).
171      -> when using GM w/ GM_AdvForm:
172          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
173          is applied either in the tracer Eq. or in momentum Eq.
174          depending on data.gmredi (intro. GM_InMomAsStress).
175      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
176      The key modifications are in model/src/taueddy_external_forcing.F
177      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
178    
179    checkpoint59r
180    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
181      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
182      fix option to read coriolis(@ cell-corner) from files with CS-grid.
183    o pkg/mnc: add some attributes to standard 1D-coordinate variables
184    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
185      mass points, when using mnc for output
186      - add runtime parameter (missing_value, missing_value_int) to override
187        default (which is the value of getcon('UNDEF'))
188    o pkg/mnc: prepare mnc for the actual use of missing values with the
189      diagnostics package: small fix in mnc_cw_readwrite.template and more
190      initialisation of never used fields
191      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
192      versions
193    o pkg/thsice/thsice_ini_vars.F added default initial values so that
194      thermodynamics sea ice solver does not blow up when some initial fields
195      are missing.
196    o move from external_forcing_surf.F to ini_forcing.F
197      the p-coord. hack consisting in using pLoad to set phi0surf ;
198      update output of tutorial_global_oce_in_p (affected @ truncation level).
199    o Freshen up a bit hs94.1x64x5, notably:
200      remove rotationPeriod and tRef=5*0. (adjoint only), and add
201      exactConserv=.TRUE.
202    o pkg/generic_advdiff:
203      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
204      applies to files where Temperature & Salinity 2nd Order moments are used.
205    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
206      this uses a dynamically allocated internal state data structure
207      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
208      and requires a fortran 90 compiler
209    
210    checkpoint59q
211    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
212       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
213    o Refresh tutorial_global_oce_biogeo, notably:
214      - change bathymetry (put back seamounts in ACC, use hFacs)
215      - change EOS (POLY3 --> JMD95Z)
216      - use Bryan-Lewis vertical diffusivity
217      - use multidimensional advection
218      - remove old virtual virtual in dic pkg, now done through ptracer pkg
219      - change a couple of parameters in dic pkg
220    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
221    o pkg/obcs: change default to OBCSfixTopo = .true.,
222      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
223      - replace "debugMode" with "debugLevel .GE. debLevB"
224    o implementation of TAF directives for gchem,cfc,dic
225    o remove "exp5" (replaced by tutorial_deep_convection).
226    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
227      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
228      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
229      --> changes results in exp4, seaice_obcs
230    o tutorial_deep_convection :
231      update the set-up and increase resolution and domain size ; start
232      from pseudo initial conditions = output at t=120mn in order to see
233      something happening when running testreport.
234    o pkg/seaice: add os7mp as an advection scheme
235                  add check for advection schemes
236                  add a flag for restoring T and S underneath sea ice
237    o pkg/my82: add netcdf-support and diagnostics
238    o thsice pkg:
239      - Now hsMax limits snow height by turning it into ice following
240        flooding scheme (and now conserving energy)
241      - Slight rewriting of the formula in thsice_calc_thick.F
242      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
243      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
244    
245    checkpoint59p
246    o gchem / dic / cfc :
247      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
248      - add new parameter files: "data.dic" & "data.cfc" ;
249      - various re-arrangement in initialisation & header file ;
250      - fix tutorial_global_oce_biogeo for multi-threaded test.
251    o pkg/dic: test for "pickup_dic" file when restarting ;
252      if no pickup-file, can restart with a re-initialised pH (same as it did
253      before) providing pickupStrictlyMatch is set to False.
254    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
255      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
256    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
257      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
258    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
259     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
260       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
261    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
262       scheme to use for vorticty-term ;
263     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
264       (with default selectVortScheme, return to original discretisation)
265     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
266    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
267    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
268      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
269      also fix diagnostics VISCAHW & VISCA4W.
270    
271    checkpoint59o
272    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
273    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
274      move a few statemens out the main loop into separate loops
275    o pkg/shelfice:
276      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
277        (kg/m^2/s), does not break tests, because in verification/isomip,
278        rhoConstFresh=rhoConst (by accident)
279      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
280      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
281        new file model/src/seawater.F, so that they are available for all pkgs.
282      - convert potential temperature into in-situ temperature. This changes the
283        isomip tests => update tests
284    o add a flag writePickupAtEnd (default=true) to be able to suppress
285      writing a pickup at the last timestep
286    o tools/mpack-1.6 :
287      - disable automake (not working) and autoconf (not needed).
288      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
289        also cleaner with much less compilation warnings.
290    o pkg/profiles:
291      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
292      (for "less than 32 characters name" compiler requirement)
293    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
294      conditions that have a different sampling frequency than S/T/U/V obcs
295    o pkg/diagnostics (stats-diags):
296      - fix global Min/Max in case 1 processor get only empty tiles
297    o genmake2: replace (4 times)
298         make genmake_tc_1.o >> genmake_warnings 2>&1
299      with
300         COMM="$CC $CFLAGS -c genmake_tc_1.c"
301         echo $COMM >> genmake_warnings
302         $COMM >> genmake_warnings 2>&1
303      to make genmake2 always see the value of CC as specified in the optfile.
304    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
305      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
306      - modify verification advect_cs test to test SOM-advection on CS-grid.
307    o pkg/ctrl:
308      - Rewrite of ctrl_map_ini_ecco.F,
309        introducing a generic routine (ctrl_map_ini_gen.F).
310      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
311    
312    checkpoint59n
313    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
314      number in dedicate array "hdiag":
315      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
316        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
317      - many small changes (integer format) for large number of diagnostics
318      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
319        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
320    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
321      usingSphericalGrid, this allows to define the rotated grid coordinates
322      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
323      geographical coordinates according to the inverse of the rotation defined
324      by the Euler angles, so that Coriolis parameter and online-interpolation by
325      exf works with the geographical coordinates on XC/YC/XG/YG.
326      Naturally, this feature does not work with all packages, so some
327      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
328      profiles), because there the coordinates are assumed to be regular
329      spherical grid coordinates.
330    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
331      - introduce isopycnal diffusion coefficient control.
332    o tools/adjoint_options:
333      - additional control vector components.
334    o pkg/mnc: have mnc create marginally meaning full coordinate variables
335      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
336    o pkg/mypackage:
337      - add example of read/write pickup for state-var ;
338      - add entry points to the main code for state-vars diags & write-pickup.
339    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
340      transitions for useExfYearlyFields
341      - add new subroutine that determines the file to read from for
342        use*YearlyFields = .TRUE. and .FALSE.
343      - add a verification experiment to global_with_exf that tests
344        useExfYearlyFields with USE_EXF_INTERPOLATION defined
345    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
346      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
347      subroutines (which could be generated from a template, because they are
348      almost identical), for now they are included in obcs_prescribe_read.F for
349      simplicity
350    o pkg/exf:
351      - add a little more diagnostic to exf_interp_read (in analogy to
352        mds_read_field, can be turned off with debugLevel < debugLevA=1)
353      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
354        ugly but fast by unrolling short inner loops, inserting a unroll=8
355        directive in routine lagran, and splitting a loop and making do while the
356        outermost loop (the latter requires the intoduction of index arrays)
357    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
358    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
359      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
360    o verification/seaice_obcs: updated for restart test and latest options
361    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
362      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
363      for now this is only available for the C-grid code and also within
364      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
365    
366    checkpoint59m
367    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
368      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
369    o gad_som : fix flux output (& diagnostics) to have same units as other  
370      advection scheme fluxes (was previously multiplied by deltaT).  
371  o added verification/seaice_obcs both to test seaice open boundaries  o added verification/seaice_obcs both to test seaice open boundaries
372    and to provide an example matlab scrpt for generating them    and to provide an example matlab scrpt for generating them
373  o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume  o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume

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