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revision 1.832 by mlosch, Wed Jun 6 14:37:14 2007 UTC revision 1.1068 by mlosch, Mon Feb 16 09:13:18 2009 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 capability to bypass interpolation for runoff
8      by setting yet another CPP-flag
9    o autodiff
10      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
11      allows to switch to single-prec common blocks;
12      corresponding switch occurs in tamc.h, integer isbyte
13      TAF store directivs "byte" and "kind" seem equivalent;
14      Most tamc.h have been updated correspondingly.
15    
16    checkpoint61i
17    o autodiff:
18      fix autodiff_sore/_restore indices for obcs
19      (spotted by I. Hoteit, M. Mazloff)
20    o pkg/autodiff, pkg/ctrl:
21      Add flag to reduce all tapelev I/O to single-prec.
22      In data.ctrl set
23        doSinglePrecTapelev = .TRUE.
24    o model/src/ini_curvilinear_grid.F: check in hack for SX8 compiler
25      to make sure that recip_dxV and recip_dyU are never zero, until we
26      have a proper exchange for them. Most compilers do not seem
27      to mind divisions by zero in the overlaps, as long as the results are
28      not used anywhere, but sxf90 does.
29    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
30      real fresh water flux (not yet)
31    o pkg/mdsio & rw:
32     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
33     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
34    o pkg/flt:
35     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
36       init_fixed & ini_varia.
37     - clean-up & simplify linear interpolation S/R:
38       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
39     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
40     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
41     - add vert. coordinate & horiz. indices to output files.
42     - change vertical position in initial condition, from index to depth [m].
43     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
44       (easier to get to a curvilinear grid) ; delX,delY no longer used.
45    o pkg/ggl90: a few modifications:
46     - fix bottom boundary condition, and interpolation of KappaE
47       near top and bottom
48     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
49     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
50     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
51    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
52      (maintain temporary backward compatibility, until next checkpoint)
53    
54    checkpoint61h
55    o pkg/diagnostics with "periodic averaging diagnostics":
56      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
57    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
58    o pkg/obcs: fix loop ranges for balancing code
59    o pkg/flt:
60     - improve criteria for finding which tile owns a float.
61     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
62    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
63      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
64      with ocean biogeo)
65    o pkg/flt:
66     - do some cleaning and fix the restart ;
67     - add output.txt in flt_example/results to get this pkg tested.
68    o genmake2: add an EXTENDED_SRC option and flag.
69       for now, cannot be turned on on command line (only through genmake_local)
70    o pkg/mdsio: read/write vector:
71     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
72     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
73       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
74     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
75      (drop to 4 digits matching for grad). But this test does not look very
76      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
77    
78    checkpoint61g
79    o pkg/flt:
80      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
81       + make OPTIONS file more standard.
82      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
83      - fix _BYTESWAPIO CPP-Flag
84      - standard reading of file-parameter "data.flt"
85      - fix argument list of S/R FLT_RESTART
86      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
87    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
88    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
89      a still unfixed compiler/optimization bug
90    
91    checkpoint61f
92    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
93      update results of global_ocean.cs32x15.icedyn test.
94    o move getcon.F from model/src to pkg/fizhi.
95    o pkg/exf: add parameter for extrapolation of temp up to the surface
96       and option to prevent negative evap (in bulk_largeyeager04 only).
97    o Prather Advection scheme: fix tracer conservation for divergent flow
98      (e.g., when using NonLin Free-Surface).
99    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
100    o gmredi (Visbeck-variable-K):
101     - add more parameters to Visbeck-variable-K.
102     - use a 5 points average for dSigmaR in Visbeck-K calculation
103       (more "homogenous": same stencil and same weights as in dSigmaH)
104     - update output of ideal_2D_oce experiment.
105    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
106      (#undef REAL4_IS_SLOW)
107     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
108       coordinate variable
109     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
110       (surface forcing fields), removes some of the functionality
111     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
112     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
113       probably not all: copy _RS surface flux fields to RL field before
114       calling DIAGNOSTICS_FILL
115     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
116       real*4 (CALL EXCH_*_RS) versions.
117     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
118       (generate new output).
119    
120    checkpoint61e
121    o gmredi (Visbeck-variable-K):
122      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
123      - change computation of Visbeck-K where Slope > Smax :        
124        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
125        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
126    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
127      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
128    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
129    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
130      does not become too large (to avoid precision problems in implicit-diffusion
131      solver); update ideal_2D_oce output.
132    o pkg ggl90:
133      - in ggl90_cal.F: compute only one set of visc/diff, used to
134        step forward TKE/T/S/momentum
135      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
136        have Prandlt =1)
137    o gmredi (fm07):
138      - add lower limit on Transition layer thickness + lower limit on 1/lambda
139      - allow to set few more params from data.gmredi
140    o pkg ggl90:
141          - add missing sqrt(2) factor in computation of mixing length
142            scale in ggl90_calc.F
143            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
144    
145    checkpoint61d
146    o adjoint modifs
147      - adapt to new field rhoInSitu
148      - allow to revert from StoreDynVars2D, StoreDynVars3D
149        to individual fields
150        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
151    o store 3-D (in-situ) density in commom block (DYNVARS.h)
152     - save 1 rho computation.
153     - no longer modify T & S inland when using down_slope pkg.
154    o gad_som : allow to switch to SOM advection for T & S without corresponding
155      pickup files (using new S/R: MDS_CHECK4FILE).
156    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
157      (for useSingleCpuIO to work in multi-threaded)
158    o pkg/shelfice:
159     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
160       with SHELFICEtopoFile in data.shelfice
161     - move code for reading ice shelf topography and modifying hFacC into separate
162       subroutines of the shelfice package
163     - separate initialisation of "fixed" and "variable" variables
164     - kTopC is not (yet) replaced by kSurfC, although this is possible
165    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
166    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
167      and rename:
168      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
169      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
170    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
171    
172    checkpoint61c
173    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
174      to add mass source/sink of fluid in the interior (3-D generalisation
175      of oceanic real-fresh water flux).
176    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
177    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
178    o new pkg: down_slope
179      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
180      - presently, modify T & S inland (dwnslp_calc_rho.F).
181        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
182      - implementation for ocean in P-coords not tested.
183      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
184    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
185      (to facilitate conversion of oceanic pkg to p-coordinate).
186    o change FIND_RHO to FIND_RHO_2D :
187      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
188    o new pkg: cheapaml
189    
190    checkpoint61b
191    o exch2:
192      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
193      - no longer depend on the order sequence (N,S,E,W).
194      - 3rd exchange no longer needed (tested with 24 tiles).
195      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
196      - exch_UV_A-grid readily available (but not yet tested).
197      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
198      (both are no longer needed) in exch_uv: no effect in forward run; but
199       get truncation error differences with adjoint exch.
200    o exch2:
201     - change index-bounds storage (moved from target to local tile,
202       more intuitive this way) ; rename/remove some variables.
203     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
204    
205    checkpoint61a
206    o exch2/matlab-topology-generator:
207      fix bug in index bounds for N-S internal exchange (hard to tell if this
208      had any effect on the solution).
209    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
210      is exceeded
211    o testreport: modify syntax of awk, so that it works also with
212      awk, and not only with nawk and gawk
213    
214    checkpoint61
215    o autodiff
216      Change default for TAF usage by removing argument '-nonew_arg'
217      This changes TAF subroutine argument list (ordering of active var.)
218      Omission of this flag leads to incompatibility w.r.t. TAMC
219      To restore TAMC-compatibility, need following modifs:
220      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
221      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
222      Tested TAF version is 1.9.22
223      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
224    
225    checkpoint60
226    --->>> This is the last checkpoint for which generating the adjoint
227    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
228    --->>> by default.
229    --->>> Future checkpoints will ommit this flag by default.
230    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
231    o pkg/grdchk: Add gradient check to etan0 perturbations.
232    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
233    o pkg/autodiff: more flexibility in zeroadj.
234      model/src: modifying do_oceanic_phys.F accordingly.
235    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
236    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
237      special setup of gmredi for which the adjoint is stable
238      enough for parameter optimization.
239    o bridging the gap between eddy stress and GM.
240      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
241          along with a change in CPP option (now ALLOW_EDDYPSI).
242      -> when using GM w/ GM_AdvForm:
243          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
244          is applied either in the tracer Eq. or in momentum Eq.
245          depending on data.gmredi (intro. GM_InMomAsStress).
246      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
247      The key modifications are in model/src/taueddy_external_forcing.F
248      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
249    
250    checkpoint59r
251    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
252      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
253      fix option to read coriolis(@ cell-corner) from files with CS-grid.
254    o pkg/mnc: add some attributes to standard 1D-coordinate variables
255    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
256      mass points, when using mnc for output
257      - add runtime parameter (missing_value, missing_value_int) to override
258        default (which is the value of getcon('UNDEF'))
259    o pkg/mnc: prepare mnc for the actual use of missing values with the
260      diagnostics package: small fix in mnc_cw_readwrite.template and more
261      initialisation of never used fields
262      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
263      versions
264    o pkg/thsice/thsice_ini_vars.F added default initial values so that
265      thermodynamics sea ice solver does not blow up when some initial fields
266      are missing.
267    o move from external_forcing_surf.F to ini_forcing.F
268      the p-coord. hack consisting in using pLoad to set phi0surf ;
269      update output of tutorial_global_oce_in_p (affected @ truncation level).
270    o Freshen up a bit hs94.1x64x5, notably:
271      remove rotationPeriod and tRef=5*0. (adjoint only), and add
272      exactConserv=.TRUE.
273    o pkg/generic_advdiff:
274      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
275      applies to files where Temperature & Salinity 2nd Order moments are used.
276    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
277      this uses a dynamically allocated internal state data structure
278      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
279      and requires a fortran 90 compiler
280    
281    checkpoint59q
282    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
283       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
284    o Refresh tutorial_global_oce_biogeo, notably:
285      - change bathymetry (put back seamounts in ACC, use hFacs)
286      - change EOS (POLY3 --> JMD95Z)
287      - use Bryan-Lewis vertical diffusivity
288      - use multidimensional advection
289      - remove old virtual virtual in dic pkg, now done through ptracer pkg
290      - change a couple of parameters in dic pkg
291    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
292    o pkg/obcs: change default to OBCSfixTopo = .true.,
293      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
294      - replace "debugMode" with "debugLevel .GE. debLevB"
295    o implementation of TAF directives for gchem,cfc,dic
296    o remove "exp5" (replaced by tutorial_deep_convection).
297    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
298      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
299      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
300      --> changes results in exp4, seaice_obcs
301    o tutorial_deep_convection :
302      update the set-up and increase resolution and domain size ; start
303      from pseudo initial conditions = output at t=120mn in order to see
304      something happening when running testreport.
305    o pkg/seaice: add os7mp as an advection scheme
306                  add check for advection schemes
307                  add a flag for restoring T and S underneath sea ice
308    o pkg/my82: add netcdf-support and diagnostics
309    o thsice pkg:
310      - Now hsMax limits snow height by turning it into ice following
311        flooding scheme (and now conserving energy)
312      - Slight rewriting of the formula in thsice_calc_thick.F
313      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
314      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
315    
316    checkpoint59p
317    o gchem / dic / cfc :
318      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
319      - add new parameter files: "data.dic" & "data.cfc" ;
320      - various re-arrangement in initialisation & header file ;
321      - fix tutorial_global_oce_biogeo for multi-threaded test.
322    o pkg/dic: test for "pickup_dic" file when restarting ;
323      if no pickup-file, can restart with a re-initialised pH (same as it did
324      before) providing pickupStrictlyMatch is set to False.
325    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
326      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
327    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
328      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
329    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
330     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
331       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
332    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
333       scheme to use for vorticty-term ;
334     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
335       (with default selectVortScheme, return to original discretisation)
336     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
337    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
338    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
339      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
340      also fix diagnostics VISCAHW & VISCA4W.
341    
342    checkpoint59o
343    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
344    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
345      move a few statemens out the main loop into separate loops
346    o pkg/shelfice:
347      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
348        (kg/m^2/s), does not break tests, because in verification/isomip,
349        rhoConstFresh=rhoConst (by accident)
350      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
351      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
352        new file model/src/seawater.F, so that they are available for all pkgs.
353      - convert potential temperature into in-situ temperature. This changes the
354        isomip tests => update tests
355    o add a flag writePickupAtEnd (default=true) to be able to suppress
356      writing a pickup at the last timestep
357    o tools/mpack-1.6 :
358      - disable automake (not working) and autoconf (not needed).
359      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
360        also cleaner with much less compilation warnings.
361    o pkg/profiles:
362      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
363      (for "less than 32 characters name" compiler requirement)
364    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
365      conditions that have a different sampling frequency than S/T/U/V obcs
366    o pkg/diagnostics (stats-diags):
367      - fix global Min/Max in case 1 processor get only empty tiles
368    o genmake2: replace (4 times)
369         make genmake_tc_1.o >> genmake_warnings 2>&1
370      with
371         COMM="$CC $CFLAGS -c genmake_tc_1.c"
372         echo $COMM >> genmake_warnings
373         $COMM >> genmake_warnings 2>&1
374      to make genmake2 always see the value of CC as specified in the optfile.
375    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
376      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
377      - modify verification advect_cs test to test SOM-advection on CS-grid.
378    o pkg/ctrl:
379      - Rewrite of ctrl_map_ini_ecco.F,
380        introducing a generic routine (ctrl_map_ini_gen.F).
381      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
382    
383    checkpoint59n
384    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
385      number in dedicate array "hdiag":
386      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
387        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
388      - many small changes (integer format) for large number of diagnostics
389      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
390        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
391    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
392      usingSphericalGrid, this allows to define the rotated grid coordinates
393      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
394      geographical coordinates according to the inverse of the rotation defined
395      by the Euler angles, so that Coriolis parameter and online-interpolation by
396      exf works with the geographical coordinates on XC/YC/XG/YG.
397      Naturally, this feature does not work with all packages, so some
398      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
399      profiles), because there the coordinates are assumed to be regular
400      spherical grid coordinates.
401    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
402      - introduce isopycnal diffusion coefficient control.
403    o tools/adjoint_options:
404      - additional control vector components.
405    o pkg/mnc: have mnc create marginally meaning full coordinate variables
406      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
407    o pkg/mypackage:
408      - add example of read/write pickup for state-var ;
409      - add entry points to the main code for state-vars diags & write-pickup.
410    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
411      transitions for useExfYearlyFields
412      - add new subroutine that determines the file to read from for
413        use*YearlyFields = .TRUE. and .FALSE.
414      - add a verification experiment to global_with_exf that tests
415        useExfYearlyFields with USE_EXF_INTERPOLATION defined
416    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
417      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
418      subroutines (which could be generated from a template, because they are
419      almost identical), for now they are included in obcs_prescribe_read.F for
420      simplicity
421    o pkg/exf:
422      - add a little more diagnostic to exf_interp_read (in analogy to
423        mds_read_field, can be turned off with debugLevel < debugLevA=1)
424      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
425        ugly but fast by unrolling short inner loops, inserting a unroll=8
426        directive in routine lagran, and splitting a loop and making do while the
427        outermost loop (the latter requires the intoduction of index arrays)
428    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
429    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
430      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
431    o verification/seaice_obcs: updated for restart test and latest options
432    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
433      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
434      for now this is only available for the C-grid code and also within
435      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
436    
437    checkpoint59m
438    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
439      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
440    o gad_som : fix flux output (& diagnostics) to have same units as other  
441      advection scheme fluxes (was previously multiplied by deltaT).  
442    o added verification/seaice_obcs both to test seaice open boundaries
443      and to provide an example matlab scrpt for generating them
444    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
445    o pkg/salt_plume: clean up salt_plume_frac.F to
446      remove redundancy in PlumeMethod 1 and 4
447    o pkg/kpp: added saltplume diagnostics
448    o pkg/obcs and pkg/seaice:
449      - do not set uice and vice to zero when OB*icefile are unspecified
450      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
451      - moved seaice tracer obcs after call to seaice_growth
452    o pkg/salt_plume: added various options for salt plume depth
453      criterion and for vertical distribution of the salt
454    
455    checkpoint59l
456    o pkg/ptracers: new version of ptracers pickup:
457      read meta file and write only fields which are needed to restart.
458      ( same logic as main pickup file ; also using pickupStrictlyMatch )
459    o pkg/seaice:
460      - add timescale for melting due to warm mixed layer as a means of
461        setting SEAICE_availHeatFrac more conveniently
462      - add a CPP-flag/runtime parameter check for flooding algorithm
463      - reformulated availHeat in seaice_growth.F to be independent of AREA
464    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
465      unit changes
466    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
467    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
468      SX vector computer.
469    o pkg/seaice:
470      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
471        seaice forcing fields can now be read only through pkg/exf
472      - removed some unused halos
473    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
474    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
475      or U/VICE from U/VWIND before computing U/VSTRESS
476    
477    checkpoint59k
478    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
479      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
480    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
481      all experiments pass when compile with un-initialised var. checking option.
482    o added pkg/salt_plume
483    o script to test restart (for now, in MITgcm_contrib/jmc_script)
484    o pkg/seaice: new read/write pickup version.
485      read meta file and write only fields which are needed to restart.
486      ( same logic as main pickup file ; also using pickupStrictlyMatch )
487    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
488    o lab_sea.hb87: modify the domain & update output.hb87.txt :
489      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
490      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
491      process. Fixed here by closing the domain at the Northern boundary.
492    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
493    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
494      a set of consecutive levels in/from a 3-D array.
495    o pkg/ptracers:
496      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
497      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
498    
499    checkpoint59j
500    o in pkgs: dic, obcs, offline, rbcs:
501      standard way to compute coeff. for time interpolation between 2 time reccords
502      which retains full precision (& make results less dependent on compiler).
503      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
504    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
505      packages instead of reading ice cover and wind speed separately
506    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
507     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
508      to allow to compile customized code before the update)
509    o cleaning-up:
510      - fix CPP instruction syntax in pkg/obcs
511      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
512        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
513      - fix some threads issue in IO parts.
514    o pkg/dic:
515      - add tons of "_d 0" (--> much better testreports !)
516       and then update outputs of tutorial_global_oce_biogeo
517    o pkg/mom_fluxform:
518      add a special version of momentum advection intended to conserve momentum
519      next to a bathymetry step or a coastline edge. (default = off = #undef)
520    o new read/write pickup version:
521      - for now, only implemented for main (mdsio) pickup file.
522      - write out only what is needed to restart; merge pickup_nh , pickup_ph
523        and main pickup together.
524      - read meta file; read only what is needed to restart; stop if a field
525        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
526        if it make sense (even if the restart is not perfect).
527      - if no meta file, assume that pickup to read corresponds exactly to
528        a pickup that would currently be written.
529      - read pickup written in the old format (until checkpoint59i) if it
530        recognizes an old meta file (no field-list).
531      - add a meta file in exp. which starts from a pickup: 2 cases:
532        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
533         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
534        b) a meta file describing the content of the associated pickup file
535         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
536    o pkg/mdsio & pkg/rw:
537      - new routine to read a meta file ; new set of routine to read
538        Multiple-fields file (with meta file).
539    o added open boundary conditions capability for seaice
540        HSNOW, HSALT, UICE, and VICE
541    
542    checkpoint59i
543    o adjoint:
544      * fix multiDimAdvection adjoint
545        (partial recomputation problem by TAF for fVerT(:,:,kDown)
546        and comlev1 size definition (maxpass vs. max. number of tracers)
547      * verification/global_ocean.90x45x15 adjoint now tests
548        NLFS and multiDimAdvection using DST3 (=30)
549      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
550    o pkg/kpp: add "_d 0" to real constant (if missing);
551      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
552      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
553    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
554      for internal parameters related to restart process (formerly from PARAMS.h)
555      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
556    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
557      as argument. (only atm2d & obcs write_pickup have not yet been updated)
558    o pkg/monitor:
559      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
560      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
561      - account for deep Atmosphere factor and density factor (anelastic)
562    o added open boundary conditions capability for seaice HEFF and AREA
563    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
564      thermodynamics
565      - requires a little reorganization, which affects the testreport results
566        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
567        so that now the conservative form is tested
568      - add a few comments
569    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
570    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
571    o add new diagnostics to seaice: advective, diffusive fluxes (only for
572      multidim-advection, for scheme 2 they are not filled) and transports,
573      thermodynamic growth rates
574    o change units of EmPmR (inside the code, + within coupling interface)
575      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
576      Affects results @ truncation level (cg2d match) and update output of
577       experiments: lab_sea(6), global_ocean.90x40x15(10),
578      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
579      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
580      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
581      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
582    
583    checkpoint59h
584    o pkg/exf:
585      - improve vectorization by moving if-statement out of loops in
586        exf_mapfields, exf_radiation
587      - exf_bulkformulae.F: introduce 2D fields and vectorize code
588    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
589    o testreport:
590      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
591        monitor & update offline_exf_seaice exp. output.
592      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
593    o pkg/seaice:
594      - bug fix in the evp solver: boundary conditions were affected be
595        masking of zMax/zMin (changes results)
596      - minor bug fix in boundary conditions in seaice_calc_strainrates
597        (changes results for no_slip)
598      - seaice_lsr.F: make interpolation of eta dependent on boundaries
599      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
600      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
601        stress formulation and no-slip boundary conditions
602    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
603      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
604    o pkg/seaice: a first HSALT time stepping equation has been checked in
605    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
606      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
607      without requiring DO-IF statements
608    o pkg/thsice:
609      use continuous power-law function for partition of energy between lateral
610      melting/freezing and thinning/thickening ; old code using step function
611      still available with #undef THSICE_FRACEN_POWERLAW
612      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
613    o testreport: change AD testing : check against results/output_adm.txt
614      using same scripts as for forward test.
615    
616    checkpoint59g
617    o adjoint testing: in preparation for changing testreport:
618      - output format: cost and grad written on separated lines
619      - ad output results in directory "results" (instead of "results_ad")
620    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
621    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
622    o pkg/ecco: allow user defined cost function contributions
623    o testreport:
624      Allow to choose (per experiment) the list of tested output variables
625       and the main variable (used to issue a pass/FAIL ) ;
626      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
627      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
628      Also modify printing of summary:
629       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
630       b) echo the list of tested variables in the individual summary.txt of
631          each experiment.
632    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
633      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
634      (but still depend on the tile decompostion of the domain).
635    o pkg/seaice: change a discretization detail to make the B-grid code
636      "more symmetric". This change is likely to remove all "ridges/leads" that
637      where quasi-aligned with the grid in B-grid solutions. It may also be
638      the solution to the stress coupling issues with the B-grid.
639    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
640      remove .cvsignore from input dir. (since testreport no longer run here).
641    o pkg/thsice:
642     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
643     - fix reshaping of sea-ice just after advection:
644       melt all the ice only if ice-volume is too small.
645     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
646       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
647     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
648    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
649      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
650    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
651      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
652      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
653      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
654      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
655      -> update output.txt
656    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
657     this affects truncation error: -> update output.txt of exp:
658      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
659      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
660    
661    checkpoint59f
662    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
663    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
664      a bounded range (in forward mode)
665    o pkg/ecco, ctrl, autodiff and mom_common:
666     internal parameter controls, completements of implementations
667    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
668    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
669      (not seem any difference in testing results).
670    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
671       at face corners.
672    o pkg/generic_advdiff:
673     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
674      loop range indices for computing vertical advection tendency
675      and do the calculation in the interior only (no overlap) ;
676      for now, only implemented for SOM advection (to save CPU time).
677     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
678    o exch2 adjoint
679      First set of changes:
680      - add exch2 hand-written adjoint templates
681      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
682        This will require cleanup in pkg/autodiff/*.F
683        (changed routines currently kept separate in verif. code/)
684      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
685        that used to hide exch2 or cubed-sphere specific code
686        (commented via 'cph-exch2')
687    o pkg/seaice
688      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
689    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
690       output of global_ocean.cs32x15.thsice .
691    
692    checkpoint59e
693    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
694      for B-grid vector (not yet tested) and C-grid vector (<- only used
695      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
696    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
697      (#ifdef ALLOW_SALT_PLUME)
698    o gather_2d/scatter_2d: removed halo regions
699    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
700      scheme and the corresponding test case (under front_relax dir). For now,
701      only available with Skew-flux form and not yet tested in realistic set-up.
702      adjoint: store directives updated, but gradient checks deteriorated,
703      so maybe GM/Redi adjoint is now broken.
704    o seaice adjoint
705      * add AREA, HEFF, HSNOW as control variable
706        (should not change lab_sea results)
707      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
708    o pkg/seaice:
709      * added computation of saltFlux in seaice_growth;
710        For time being, sea ice salinity is assumed constant
711        contribution of snow flooding to freshening of sea ice is neglected.
712        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
713        defaults to 0.0 in order to maintain backward compatibility.
714        Typical values for SEAICE_salinity are 4 to 10 g/kg.
715      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
716      * added SEAICE_availHeatFrac, which specifies fraction of surface level
717        heat content used to melt or grow ice
718      * commented out cap of HICE: it helps keep ice thinner
719      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
720      * applied OBCS T/S mask to HEFFM sea ice mask
721    
722    checkpoint59d
723    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
724     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
725     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
726    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
727     and change default value of parameter "GM_Small_Number";
728     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
729       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
730       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
731    o pkg/ecco: cost function when applying pkg/smooth to controls
732    o pkg/ctrl: add forcingPrecond run time parameter
733    o pkg/seaice:
734     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
735     - fix bug in metric terms of u-equation in LSR solver (implicit part),
736       changes verification/lab_sea
737     - rearrange implicit part of u-equation in LSR solver to make it easier to
738       read, understand, and debug. This causes changes at the truncation level.
739     - fix (serious) bug in the boundary conditions (sign error in the implicit
740       part) of the LSR solver. Changes all LSR results.
741     - fixed problem with HSNOW initialization to avoid thick snow when AREA
742       is initilized with small values - does not change lab_sea results.
743     - added HsnowFile initialization capability
744    o pkg/smooth: addition to model/src and pkg/ctrl so allow
745     initialization of pkg/smooth and application to control vector
746    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
747    o dependencies: pkg/profiles requires pkg/cal
748    o pkg/profiles:
749     - added option ALLOW_PROFILES_GENERICGRID
750         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
751         that interpolation information (grid points and coefficients) is provided
752         within the netcdf input files.
753         -> sample matlab scripts can be found in MITgcm_contrib/gael
754         that allow you to prepare netcdf input files.
755     - also modified: cleaner include statements, cleaner error print statements,
756       cleaner stops when error, and more tests of the netcdf input files consistency.
757    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
758  o pkg/seaice:  o pkg/seaice:
759     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
760       requires a new routine: seaice_diagnostics_fill.F
761   - make sure that seaice does not move if not forced (pressure replacement   - make sure that seaice does not move if not forced (pressure replacement
762     method, Hibler and Ip, 1995), changes results     method, Hibler and Ip, 1995), changes results
763   - and new damping criterion for EVP solver according to Hunke, JCP, 2001   - and new damping criterion for EVP solver according to Hunke, JCP, 2001
# Line 134  o in FFIELDS.h: Line 887  o in FFIELDS.h:
887       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
888  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
889  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
890      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
891        are no longer updating the vertical diffusivity array
892        (passed as argument) but are (re-) setting those arrays.
893  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
894    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
895      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 1616  o add two new packages Line 2371  o add two new packages
2371    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2372    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2373      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2374      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2375  o add offline package  o add offline package
2376  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2377    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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