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revision 1.825 by mlosch, Wed May 30 10:56:27 2007 UTC revision 1.1048 by jmc, Tue Dec 30 18:00:09 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/mdsio: read/write vector:
8     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
9     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
10       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
11     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
12      (drop to 4 digits matching for grad). But this test does not look very
13      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
14    
15    checkpoint61g
16    o pkg/flt:
17      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
18       + make OPTIONS file more standard.
19      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
20      - fix _BYTESWAPIO CPP-Flag
21      - standard reading of file-parameter "data.flt"
22      - fix argument list of S/R FLT_RESTART
23      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
24    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
25    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
26      a still unfixed compiler/optimization bug
27    
28    checkpoint61f
29    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
30      update results of global_ocean.cs32x15.icedyn test.
31    o move getcon.F from model/src to pkg/fizhi.
32    o pkg/exf: add parameter for extrapolation of temp up to the surface
33       and option to prevent negative evap (in bulk_largeyeager04 only).
34    o Prather Advection scheme: fix tracer conservation for divergent flow
35      (e.g., when using NonLin Free-Surface).
36    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
37    o gmredi (Visbeck-variable-K):
38     - add more parameters to Visbeck-variable-K.
39     - use a 5 points average for dSigmaR in Visbeck-K calculation
40       (more "homogenous": same stencil and same weights as in dSigmaH)
41     - update output of ideal_2D_oce experiment.
42    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
43      (#undef REAL4_IS_SLOW)
44     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
45       coordinate variable
46     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
47       (surface forcing fields), removes some of the functionality
48     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
49     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
50       probably not all: copy _RS surface flux fields to RL field before
51       calling DIAGNOSTICS_FILL
52     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
53       real*4 (CALL EXCH_*_RS) versions.
54     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
55       (generate new output).
56    
57    checkpoint61e
58    o gmredi (Visbeck-variable-K):
59      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
60      - change computation of Visbeck-K where Slope > Smax :        
61        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
62        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
63    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
64      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
65    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
66    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
67      does not become too large (to avoid precision problems in implicit-diffusion
68      solver); update ideal_2D_oce output.
69    o pkg ggl90:
70      - in ggl90_cal.F: compute only one set of visc/diff, used to
71        step forward TKE/T/S/momentum
72      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
73        have Prandlt =1)
74    o gmredi (fm07):
75      - add lower limit on Transition layer thickness + lower limit on 1/lambda
76      - allow to set few more params from data.gmredi
77    o pkg ggl90:
78          - add missing sqrt(2) factor in computation of mixing length
79            scale in ggl90_calc.F
80            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
81    
82    checkpoint61d
83    o adjoint modifs
84      - adapt to new field rhoInSitu
85      - allow to revert from StoreDynVars2D, StoreDynVars3D
86        to individual fields
87        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
88    o store 3-D (in-situ) density in commom block (DYNVARS.h)
89     - save 1 rho computation.
90     - no longer modify T & S inland when using down_slope pkg.
91    o gad_som : allow to switch to SOM advection for T & S without corresponding
92      pickup files (using new S/R: MDS_CHECK4FILE).
93    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
94      (for useSingleCpuIO to work in multi-threaded)
95    o pkg/shelfice:
96     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
97       with SHELFICEtopoFile in data.shelfice
98     - move code for reading ice shelf topography and modifying hFacC into separate
99       subroutines of the shelfice package
100     - separate initialisation of "fixed" and "variable" variables
101     - kTopC is not (yet) replaced by kSurfC, although this is possible
102    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
103    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
104      and rename:
105      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
106      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
107    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
108    
109    checkpoint61c
110    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
111      to add mass source/sink of fluid in the interior (3-D generalisation
112      of oceanic real-fresh water flux).
113    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
114    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
115    o new pkg: down_slope
116      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
117      - presently, modify T & S inland (dwnslp_calc_rho.F).
118        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
119      - implementation for ocean in P-coords not tested.
120      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
121    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
122      (to facilitate conversion of oceanic pkg to p-coordinate).
123    o change FIND_RHO to FIND_RHO_2D :
124      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
125    o new pkg: cheapaml
126    
127    checkpoint61b
128    o exch2:
129      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
130      - no longer depend on the order sequence (N,S,E,W).
131      - 3rd exchange no longer needed (tested with 24 tiles).
132      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
133      - exch_UV_A-grid readily available (but not yet tested).
134      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
135      (both are no longer needed) in exch_uv: no effect in forward run; but
136       get truncation error differences with adjoint exch.
137    o exch2:
138     - change index-bounds storage (moved from target to local tile,
139       more intuitive this way) ; rename/remove some variables.
140     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
141    
142    checkpoint61a
143    o exch2/matlab-topology-generator:
144      fix bug in index bounds for N-S internal exchange (hard to tell if this
145      had any effect on the solution).
146    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
147      is exceeded
148    o testreport: modify syntax of awk, so that it works also with
149      awk, and not only with nawk and gawk
150    
151    checkpoint61
152    o autodiff
153      Change default for TAF usage by removing argument '-nonew_arg'
154      This changes TAF subroutine argument list (ordering of active var.)
155      Omission of this flag leads to incompatibility w.r.t. TAMC
156      To restore TAMC-compatibility, need following modifs:
157      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
158      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
159      Tested TAF version is 1.9.22
160      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
161    
162    checkpoint60
163    --->>> This is the last checkpoint for which generating the adjoint
164    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
165    --->>> by default.
166    --->>> Future checkpoints will ommit this flag by default.
167    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
168    o pkg/grdchk: Add gradient check to etan0 perturbations.
169    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
170    o pkg/autodiff: more flexibility in zeroadj.
171      model/src: modifying do_oceanic_phys.F accordingly.
172    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
173    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
174      special setup of gmredi for which the adjoint is stable
175      enough for parameter optimization.
176    o bridging the gap between eddy stress and GM.
177      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
178          along with a change in CPP option (now ALLOW_EDDYPSI).
179      -> when using GM w/ GM_AdvForm:
180          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
181          is applied either in the tracer Eq. or in momentum Eq.
182          depending on data.gmredi (intro. GM_InMomAsStress).
183      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
184      The key modifications are in model/src/taueddy_external_forcing.F
185      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
186    
187    checkpoint59r
188    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
189      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
190      fix option to read coriolis(@ cell-corner) from files with CS-grid.
191    o pkg/mnc: add some attributes to standard 1D-coordinate variables
192    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
193      mass points, when using mnc for output
194      - add runtime parameter (missing_value, missing_value_int) to override
195        default (which is the value of getcon('UNDEF'))
196    o pkg/mnc: prepare mnc for the actual use of missing values with the
197      diagnostics package: small fix in mnc_cw_readwrite.template and more
198      initialisation of never used fields
199      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
200      versions
201    o pkg/thsice/thsice_ini_vars.F added default initial values so that
202      thermodynamics sea ice solver does not blow up when some initial fields
203      are missing.
204    o move from external_forcing_surf.F to ini_forcing.F
205      the p-coord. hack consisting in using pLoad to set phi0surf ;
206      update output of tutorial_global_oce_in_p (affected @ truncation level).
207    o Freshen up a bit hs94.1x64x5, notably:
208      remove rotationPeriod and tRef=5*0. (adjoint only), and add
209      exactConserv=.TRUE.
210    o pkg/generic_advdiff:
211      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
212      applies to files where Temperature & Salinity 2nd Order moments are used.
213    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
214      this uses a dynamically allocated internal state data structure
215      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
216      and requires a fortran 90 compiler
217    
218    checkpoint59q
219    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
220       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
221    o Refresh tutorial_global_oce_biogeo, notably:
222      - change bathymetry (put back seamounts in ACC, use hFacs)
223      - change EOS (POLY3 --> JMD95Z)
224      - use Bryan-Lewis vertical diffusivity
225      - use multidimensional advection
226      - remove old virtual virtual in dic pkg, now done through ptracer pkg
227      - change a couple of parameters in dic pkg
228    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
229    o pkg/obcs: change default to OBCSfixTopo = .true.,
230      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
231      - replace "debugMode" with "debugLevel .GE. debLevB"
232    o implementation of TAF directives for gchem,cfc,dic
233    o remove "exp5" (replaced by tutorial_deep_convection).
234    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
235      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
236      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
237      --> changes results in exp4, seaice_obcs
238    o tutorial_deep_convection :
239      update the set-up and increase resolution and domain size ; start
240      from pseudo initial conditions = output at t=120mn in order to see
241      something happening when running testreport.
242    o pkg/seaice: add os7mp as an advection scheme
243                  add check for advection schemes
244                  add a flag for restoring T and S underneath sea ice
245    o pkg/my82: add netcdf-support and diagnostics
246    o thsice pkg:
247      - Now hsMax limits snow height by turning it into ice following
248        flooding scheme (and now conserving energy)
249      - Slight rewriting of the formula in thsice_calc_thick.F
250      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
251      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
252    
253    checkpoint59p
254    o gchem / dic / cfc :
255      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
256      - add new parameter files: "data.dic" & "data.cfc" ;
257      - various re-arrangement in initialisation & header file ;
258      - fix tutorial_global_oce_biogeo for multi-threaded test.
259    o pkg/dic: test for "pickup_dic" file when restarting ;
260      if no pickup-file, can restart with a re-initialised pH (same as it did
261      before) providing pickupStrictlyMatch is set to False.
262    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
263      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
264    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
265      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
266    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
267     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
268       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
269    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
270       scheme to use for vorticty-term ;
271     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
272       (with default selectVortScheme, return to original discretisation)
273     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
274    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
275    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
276      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
277      also fix diagnostics VISCAHW & VISCA4W.
278    
279    checkpoint59o
280    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
281    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
282      move a few statemens out the main loop into separate loops
283    o pkg/shelfice:
284      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
285        (kg/m^2/s), does not break tests, because in verification/isomip,
286        rhoConstFresh=rhoConst (by accident)
287      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
288      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
289        new file model/src/seawater.F, so that they are available for all pkgs.
290      - convert potential temperature into in-situ temperature. This changes the
291        isomip tests => update tests
292    o add a flag writePickupAtEnd (default=true) to be able to suppress
293      writing a pickup at the last timestep
294    o tools/mpack-1.6 :
295      - disable automake (not working) and autoconf (not needed).
296      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
297        also cleaner with much less compilation warnings.
298    o pkg/profiles:
299      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
300      (for "less than 32 characters name" compiler requirement)
301    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
302      conditions that have a different sampling frequency than S/T/U/V obcs
303    o pkg/diagnostics (stats-diags):
304      - fix global Min/Max in case 1 processor get only empty tiles
305    o genmake2: replace (4 times)
306         make genmake_tc_1.o >> genmake_warnings 2>&1
307      with
308         COMM="$CC $CFLAGS -c genmake_tc_1.c"
309         echo $COMM >> genmake_warnings
310         $COMM >> genmake_warnings 2>&1
311      to make genmake2 always see the value of CC as specified in the optfile.
312    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
313      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
314      - modify verification advect_cs test to test SOM-advection on CS-grid.
315    o pkg/ctrl:
316      - Rewrite of ctrl_map_ini_ecco.F,
317        introducing a generic routine (ctrl_map_ini_gen.F).
318      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
319    
320    checkpoint59n
321    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
322      number in dedicate array "hdiag":
323      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
324        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
325      - many small changes (integer format) for large number of diagnostics
326      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
327        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
328    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
329      usingSphericalGrid, this allows to define the rotated grid coordinates
330      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
331      geographical coordinates according to the inverse of the rotation defined
332      by the Euler angles, so that Coriolis parameter and online-interpolation by
333      exf works with the geographical coordinates on XC/YC/XG/YG.
334      Naturally, this feature does not work with all packages, so some
335      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
336      profiles), because there the coordinates are assumed to be regular
337      spherical grid coordinates.
338    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
339      - introduce isopycnal diffusion coefficient control.
340    o tools/adjoint_options:
341      - additional control vector components.
342    o pkg/mnc: have mnc create marginally meaning full coordinate variables
343      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
344    o pkg/mypackage:
345      - add example of read/write pickup for state-var ;
346      - add entry points to the main code for state-vars diags & write-pickup.
347    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
348      transitions for useExfYearlyFields
349      - add new subroutine that determines the file to read from for
350        use*YearlyFields = .TRUE. and .FALSE.
351      - add a verification experiment to global_with_exf that tests
352        useExfYearlyFields with USE_EXF_INTERPOLATION defined
353    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
354      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
355      subroutines (which could be generated from a template, because they are
356      almost identical), for now they are included in obcs_prescribe_read.F for
357      simplicity
358    o pkg/exf:
359      - add a little more diagnostic to exf_interp_read (in analogy to
360        mds_read_field, can be turned off with debugLevel < debugLevA=1)
361      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
362        ugly but fast by unrolling short inner loops, inserting a unroll=8
363        directive in routine lagran, and splitting a loop and making do while the
364        outermost loop (the latter requires the intoduction of index arrays)
365    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
366    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
367      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
368    o verification/seaice_obcs: updated for restart test and latest options
369    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
370      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
371      for now this is only available for the C-grid code and also within
372      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
373    
374    checkpoint59m
375    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
376      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
377    o gad_som : fix flux output (& diagnostics) to have same units as other  
378      advection scheme fluxes (was previously multiplied by deltaT).  
379    o added verification/seaice_obcs both to test seaice open boundaries
380      and to provide an example matlab scrpt for generating them
381    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
382    o pkg/salt_plume: clean up salt_plume_frac.F to
383      remove redundancy in PlumeMethod 1 and 4
384    o pkg/kpp: added saltplume diagnostics
385    o pkg/obcs and pkg/seaice:
386      - do not set uice and vice to zero when OB*icefile are unspecified
387      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
388      - moved seaice tracer obcs after call to seaice_growth
389    o pkg/salt_plume: added various options for salt plume depth
390      criterion and for vertical distribution of the salt
391    
392    checkpoint59l
393    o pkg/ptracers: new version of ptracers pickup:
394      read meta file and write only fields which are needed to restart.
395      ( same logic as main pickup file ; also using pickupStrictlyMatch )
396    o pkg/seaice:
397      - add timescale for melting due to warm mixed layer as a means of
398        setting SEAICE_availHeatFrac more conveniently
399      - add a CPP-flag/runtime parameter check for flooding algorithm
400      - reformulated availHeat in seaice_growth.F to be independent of AREA
401    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
402      unit changes
403    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
404    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
405      SX vector computer.
406    o pkg/seaice:
407      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
408        seaice forcing fields can now be read only through pkg/exf
409      - removed some unused halos
410    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
411    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
412      or U/VICE from U/VWIND before computing U/VSTRESS
413    
414    checkpoint59k
415    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
416      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
417    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
418      all experiments pass when compile with un-initialised var. checking option.
419    o added pkg/salt_plume
420    o script to test restart (for now, in MITgcm_contrib/jmc_script)
421    o pkg/seaice: new read/write pickup version.
422      read meta file and write only fields which are needed to restart.
423      ( same logic as main pickup file ; also using pickupStrictlyMatch )
424    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
425    o lab_sea.hb87: modify the domain & update output.hb87.txt :
426      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
427      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
428      process. Fixed here by closing the domain at the Northern boundary.
429    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
430    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
431      a set of consecutive levels in/from a 3-D array.
432    o pkg/ptracers:
433      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
434      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
435    
436    checkpoint59j
437    o in pkgs: dic, obcs, offline, rbcs:
438      standard way to compute coeff. for time interpolation between 2 time reccords
439      which retains full precision (& make results less dependent on compiler).
440      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
441    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
442      packages instead of reading ice cover and wind speed separately
443    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
444     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
445      to allow to compile customized code before the update)
446    o cleaning-up:
447      - fix CPP instruction syntax in pkg/obcs
448      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
449        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
450      - fix some threads issue in IO parts.
451    o pkg/dic:
452      - add tons of "_d 0" (--> much better testreports !)
453       and then update outputs of tutorial_global_oce_biogeo
454    o pkg/mom_fluxform:
455      add a special version of momentum advection intended to conserve momentum
456      next to a bathymetry step or a coastline edge. (default = off = #undef)
457    o new read/write pickup version:
458      - for now, only implemented for main (mdsio) pickup file.
459      - write out only what is needed to restart; merge pickup_nh , pickup_ph
460        and main pickup together.
461      - read meta file; read only what is needed to restart; stop if a field
462        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
463        if it make sense (even if the restart is not perfect).
464      - if no meta file, assume that pickup to read corresponds exactly to
465        a pickup that would currently be written.
466      - read pickup written in the old format (until checkpoint59i) if it
467        recognizes an old meta file (no field-list).
468      - add a meta file in exp. which starts from a pickup: 2 cases:
469        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
470         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
471        b) a meta file describing the content of the associated pickup file
472         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
473    o pkg/mdsio & pkg/rw:
474      - new routine to read a meta file ; new set of routine to read
475        Multiple-fields file (with meta file).
476    o added open boundary conditions capability for seaice
477        HSNOW, HSALT, UICE, and VICE
478    
479    checkpoint59i
480    o adjoint:
481      * fix multiDimAdvection adjoint
482        (partial recomputation problem by TAF for fVerT(:,:,kDown)
483        and comlev1 size definition (maxpass vs. max. number of tracers)
484      * verification/global_ocean.90x45x15 adjoint now tests
485        NLFS and multiDimAdvection using DST3 (=30)
486      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
487    o pkg/kpp: add "_d 0" to real constant (if missing);
488      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
489      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
490    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
491      for internal parameters related to restart process (formerly from PARAMS.h)
492      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
493    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
494      as argument. (only atm2d & obcs write_pickup have not yet been updated)
495    o pkg/monitor:
496      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
497      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
498      - account for deep Atmosphere factor and density factor (anelastic)
499    o added open boundary conditions capability for seaice HEFF and AREA
500    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
501      thermodynamics
502      - requires a little reorganization, which affects the testreport results
503        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
504        so that now the conservative form is tested
505      - add a few comments
506    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
507    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
508    o add new diagnostics to seaice: advective, diffusive fluxes (only for
509      multidim-advection, for scheme 2 they are not filled) and transports,
510      thermodynamic growth rates
511    o change units of EmPmR (inside the code, + within coupling interface)
512      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
513      Affects results @ truncation level (cg2d match) and update output of
514       experiments: lab_sea(6), global_ocean.90x40x15(10),
515      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
516      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
517      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
518      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
519    
520    checkpoint59h
521    o pkg/exf:
522      - improve vectorization by moving if-statement out of loops in
523        exf_mapfields, exf_radiation
524      - exf_bulkformulae.F: introduce 2D fields and vectorize code
525    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
526    o testreport:
527      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
528        monitor & update offline_exf_seaice exp. output.
529      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
530    o pkg/seaice:
531      - bug fix in the evp solver: boundary conditions were affected be
532        masking of zMax/zMin (changes results)
533      - minor bug fix in boundary conditions in seaice_calc_strainrates
534        (changes results for no_slip)
535      - seaice_lsr.F: make interpolation of eta dependent on boundaries
536      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
537      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
538        stress formulation and no-slip boundary conditions
539    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
540      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
541    o pkg/seaice: a first HSALT time stepping equation has been checked in
542    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
543      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
544      without requiring DO-IF statements
545    o pkg/thsice:
546      use continuous power-law function for partition of energy between lateral
547      melting/freezing and thinning/thickening ; old code using step function
548      still available with #undef THSICE_FRACEN_POWERLAW
549      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
550    o testreport: change AD testing : check against results/output_adm.txt
551      using same scripts as for forward test.
552    
553    checkpoint59g
554    o adjoint testing: in preparation for changing testreport:
555      - output format: cost and grad written on separated lines
556      - ad output results in directory "results" (instead of "results_ad")
557    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
558    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
559    o pkg/ecco: allow user defined cost function contributions
560    o testreport:
561      Allow to choose (per experiment) the list of tested output variables
562       and the main variable (used to issue a pass/FAIL ) ;
563      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
564      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
565      Also modify printing of summary:
566       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
567       b) echo the list of tested variables in the individual summary.txt of
568          each experiment.
569    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
570      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
571      (but still depend on the tile decompostion of the domain).
572    o pkg/seaice: change a discretization detail to make the B-grid code
573      "more symmetric". This change is likely to remove all "ridges/leads" that
574      where quasi-aligned with the grid in B-grid solutions. It may also be
575      the solution to the stress coupling issues with the B-grid.
576    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
577      remove .cvsignore from input dir. (since testreport no longer run here).
578    o pkg/thsice:
579     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
580     - fix reshaping of sea-ice just after advection:
581       melt all the ice only if ice-volume is too small.
582     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
583       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
584     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
585    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
586      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
587    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
588      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
589      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
590      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
591      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
592      -> update output.txt
593    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
594     this affects truncation error: -> update output.txt of exp:
595      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
596      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
597    
598    checkpoint59f
599    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
600    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
601      a bounded range (in forward mode)
602    o pkg/ecco, ctrl, autodiff and mom_common:
603     internal parameter controls, completements of implementations
604    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
605    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
606      (not seem any difference in testing results).
607    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
608       at face corners.
609    o pkg/generic_advdiff:
610     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
611      loop range indices for computing vertical advection tendency
612      and do the calculation in the interior only (no overlap) ;
613      for now, only implemented for SOM advection (to save CPU time).
614     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
615    o exch2 adjoint
616      First set of changes:
617      - add exch2 hand-written adjoint templates
618      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
619        This will require cleanup in pkg/autodiff/*.F
620        (changed routines currently kept separate in verif. code/)
621      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
622        that used to hide exch2 or cubed-sphere specific code
623        (commented via 'cph-exch2')
624    o pkg/seaice
625      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
626    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
627       output of global_ocean.cs32x15.thsice .
628    
629    checkpoint59e
630    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
631      for B-grid vector (not yet tested) and C-grid vector (<- only used
632      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
633    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
634      (#ifdef ALLOW_SALT_PLUME)
635    o gather_2d/scatter_2d: removed halo regions
636    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
637      scheme and the corresponding test case (under front_relax dir). For now,
638      only available with Skew-flux form and not yet tested in realistic set-up.
639      adjoint: store directives updated, but gradient checks deteriorated,
640      so maybe GM/Redi adjoint is now broken.
641    o seaice adjoint
642      * add AREA, HEFF, HSNOW as control variable
643        (should not change lab_sea results)
644      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
645    o pkg/seaice:
646      * added computation of saltFlux in seaice_growth;
647        For time being, sea ice salinity is assumed constant
648        contribution of snow flooding to freshening of sea ice is neglected.
649        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
650        defaults to 0.0 in order to maintain backward compatibility.
651        Typical values for SEAICE_salinity are 4 to 10 g/kg.
652      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
653      * added SEAICE_availHeatFrac, which specifies fraction of surface level
654        heat content used to melt or grow ice
655      * commented out cap of HICE: it helps keep ice thinner
656      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
657      * applied OBCS T/S mask to HEFFM sea ice mask
658    
659    checkpoint59d
660    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
661     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
662     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
663    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
664     and change default value of parameter "GM_Small_Number";
665     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
666       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
667       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
668    o pkg/ecco: cost function when applying pkg/smooth to controls
669    o pkg/ctrl: add forcingPrecond run time parameter
670    o pkg/seaice:
671     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
672     - fix bug in metric terms of u-equation in LSR solver (implicit part),
673       changes verification/lab_sea
674     - rearrange implicit part of u-equation in LSR solver to make it easier to
675       read, understand, and debug. This causes changes at the truncation level.
676     - fix (serious) bug in the boundary conditions (sign error in the implicit
677       part) of the LSR solver. Changes all LSR results.
678     - fixed problem with HSNOW initialization to avoid thick snow when AREA
679       is initilized with small values - does not change lab_sea results.
680     - added HsnowFile initialization capability
681    o pkg/smooth: addition to model/src and pkg/ctrl so allow
682     initialization of pkg/smooth and application to control vector
683    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
684    o dependencies: pkg/profiles requires pkg/cal
685    o pkg/profiles:
686     - added option ALLOW_PROFILES_GENERICGRID
687         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
688         that interpolation information (grid points and coefficients) is provided
689         within the netcdf input files.
690         -> sample matlab scripts can be found in MITgcm_contrib/gael
691         that allow you to prepare netcdf input files.
692     - also modified: cleaner include statements, cleaner error print statements,
693       cleaner stops when error, and more tests of the netcdf input files consistency.
694    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
695    o pkg/seaice:
696     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
697       requires a new routine: seaice_diagnostics_fill.F
698     - make sure that seaice does not move if not forced (pressure replacement
699       method, Hibler and Ip, 1995), changes results
700     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
701     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
702       It is turned off by default (=-1.), because it changes the results.
703     - make it possible to read AREA from a file, too.
704    
705    checkpoint59c
706    o add S/R and diagnostics for oceanic mixed-layer depth
707    o move GMRedi call after all vertical mixing schemes (including KPP)
708    o pkg/thsice:
709     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
710      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
711  o pkg/obcs:  o pkg/obcs:
712   - bug fix for balance code   - bug fix for balance code
713  o pkg/seaice:  o pkg/seaice:
714    - allow values of SEAICE_elasticParm > 1    - allow values of SEAICE_elasticParm > 1
715    - add new parameter SEAICE_evpTauRelax as an alternative to SEAICE_elasticParm    - add new parameter SEAICE_evpTauRelax as an alternative
716        to SEAICE_elasticParm
717    - make lsr boundary conditions free slip (by default), changes result    - make lsr boundary conditions free slip (by default), changes result
718    - add code for no slip boundary conditions for lsr    - add code for no slip boundary conditions for lsr
719    - set minimum of zeta to zero (and not 4e8) (changes results)    - set minimum of zeta to zero (and not 4e8) (changes results)
720      - add a cap on AREA after advecting AREA if seaice_growth is not called
721  o change calculation of Visbeck K:  o change calculation of Visbeck K:
722    - no longer depend on tapering scheme; instead, compute slope (limited    - no longer depend on tapering scheme; instead, compute slope (limited
723      by GM_maxSlope). this is equivalent to what was comuted before with      by GM_maxSlope). this is equivalent to what was comuted before with
724      clipping or linear tappering.      clipping or linear tappering.
725    - fix vertical averaging (wrong by 1 level)    - fix vertical averaging (wrong by 1/2 level)
726    - leave the old version (but will not be maintained) within    - leave the old version (but will not be maintained) within
727      #ifdef OLD_VISBECK_CALC / #endif      #ifdef OLD_VISBECK_CALC / #endif
728      - update output of exp. ideal_2D_oce
729  o change error catch in calc_r_star to improve vectorization  o change error catch in calc_r_star to improve vectorization
730  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
731    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
732    o adjoint:
733      Re-organized adjoint checkpointing according to Matt Mazloff
734      (but with modifs/completions/cleanups)
735      Storing is now bundled into large arrays to optimized I/O
736      (and second step in cleanup of the_main_loop)
737    
738  checkpoint59b  checkpoint59b
739  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
# Line 75  o pkg/exf: some cleaning-up: Line 787  o pkg/exf: some cleaning-up:
787  o pkg/thsice:  o pkg/thsice:
788   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
789    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
790    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
791    and in thsice_extend.F:    and in thsice_extend.F:
792    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
793    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 112  o in FFIELDS.h: Line 824  o in FFIELDS.h:
824       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
825  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
826  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
827      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
828        are no longer updating the vertical diffusivity array
829        (passed as argument) but are (re-) setting those arrays.
830  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
831    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
832      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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