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revision 1.843 by jmc, Thu Jun 21 00:56:25 2007 UTC revision 1.1052 by mlosch, Mon Jan 12 10:10:19 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/obcs: fix loop ranges for balancing code
8    o pkg/flt:
9     - improve criteria for finding which tile owns a float.
10     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
11    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
12      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
13      with ocean biogeo)
14    o pkg/flt:
15     - do some cleaning and fix the restart ;
16     - add output.txt in flt_example/results to get this pkg tested.
17    o genmake2: add an EXTENDED_SRC option and flag.
18       for now, cannot be turned on on command line (only through genmake_local)
19    o pkg/mdsio: read/write vector:
20     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
21     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
22       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
23     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
24      (drop to 4 digits matching for grad). But this test does not look very
25      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
26    
27    checkpoint61g
28    o pkg/flt:
29      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
30       + make OPTIONS file more standard.
31      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
32      - fix _BYTESWAPIO CPP-Flag
33      - standard reading of file-parameter "data.flt"
34      - fix argument list of S/R FLT_RESTART
35      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
36    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
37    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
38      a still unfixed compiler/optimization bug
39    
40    checkpoint61f
41    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
42      update results of global_ocean.cs32x15.icedyn test.
43    o move getcon.F from model/src to pkg/fizhi.
44    o pkg/exf: add parameter for extrapolation of temp up to the surface
45       and option to prevent negative evap (in bulk_largeyeager04 only).
46    o Prather Advection scheme: fix tracer conservation for divergent flow
47      (e.g., when using NonLin Free-Surface).
48    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
49    o gmredi (Visbeck-variable-K):
50     - add more parameters to Visbeck-variable-K.
51     - use a 5 points average for dSigmaR in Visbeck-K calculation
52       (more "homogenous": same stencil and same weights as in dSigmaH)
53     - update output of ideal_2D_oce experiment.
54    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
55      (#undef REAL4_IS_SLOW)
56     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
57       coordinate variable
58     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
59       (surface forcing fields), removes some of the functionality
60     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
61     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
62       probably not all: copy _RS surface flux fields to RL field before
63       calling DIAGNOSTICS_FILL
64     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
65       real*4 (CALL EXCH_*_RS) versions.
66     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
67       (generate new output).
68    
69    checkpoint61e
70    o gmredi (Visbeck-variable-K):
71      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
72      - change computation of Visbeck-K where Slope > Smax :        
73        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
74        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
75    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
76      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
77    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
78    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
79      does not become too large (to avoid precision problems in implicit-diffusion
80      solver); update ideal_2D_oce output.
81    o pkg ggl90:
82      - in ggl90_cal.F: compute only one set of visc/diff, used to
83        step forward TKE/T/S/momentum
84      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
85        have Prandlt =1)
86    o gmredi (fm07):
87      - add lower limit on Transition layer thickness + lower limit on 1/lambda
88      - allow to set few more params from data.gmredi
89    o pkg ggl90:
90          - add missing sqrt(2) factor in computation of mixing length
91            scale in ggl90_calc.F
92            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
93    
94    checkpoint61d
95    o adjoint modifs
96      - adapt to new field rhoInSitu
97      - allow to revert from StoreDynVars2D, StoreDynVars3D
98        to individual fields
99        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
100    o store 3-D (in-situ) density in commom block (DYNVARS.h)
101     - save 1 rho computation.
102     - no longer modify T & S inland when using down_slope pkg.
103    o gad_som : allow to switch to SOM advection for T & S without corresponding
104      pickup files (using new S/R: MDS_CHECK4FILE).
105    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
106      (for useSingleCpuIO to work in multi-threaded)
107    o pkg/shelfice:
108     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
109       with SHELFICEtopoFile in data.shelfice
110     - move code for reading ice shelf topography and modifying hFacC into separate
111       subroutines of the shelfice package
112     - separate initialisation of "fixed" and "variable" variables
113     - kTopC is not (yet) replaced by kSurfC, although this is possible
114    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
115    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
116      and rename:
117      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
118      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
119    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
120    
121    checkpoint61c
122    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
123      to add mass source/sink of fluid in the interior (3-D generalisation
124      of oceanic real-fresh water flux).
125    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
126    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
127    o new pkg: down_slope
128      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
129      - presently, modify T & S inland (dwnslp_calc_rho.F).
130        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
131      - implementation for ocean in P-coords not tested.
132      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
133    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
134      (to facilitate conversion of oceanic pkg to p-coordinate).
135    o change FIND_RHO to FIND_RHO_2D :
136      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
137    o new pkg: cheapaml
138    
139    checkpoint61b
140    o exch2:
141      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
142      - no longer depend on the order sequence (N,S,E,W).
143      - 3rd exchange no longer needed (tested with 24 tiles).
144      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
145      - exch_UV_A-grid readily available (but not yet tested).
146      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
147      (both are no longer needed) in exch_uv: no effect in forward run; but
148       get truncation error differences with adjoint exch.
149    o exch2:
150     - change index-bounds storage (moved from target to local tile,
151       more intuitive this way) ; rename/remove some variables.
152     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
153    
154    checkpoint61a
155    o exch2/matlab-topology-generator:
156      fix bug in index bounds for N-S internal exchange (hard to tell if this
157      had any effect on the solution).
158    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
159      is exceeded
160    o testreport: modify syntax of awk, so that it works also with
161      awk, and not only with nawk and gawk
162    
163    checkpoint61
164    o autodiff
165      Change default for TAF usage by removing argument '-nonew_arg'
166      This changes TAF subroutine argument list (ordering of active var.)
167      Omission of this flag leads to incompatibility w.r.t. TAMC
168      To restore TAMC-compatibility, need following modifs:
169      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
170      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
171      Tested TAF version is 1.9.22
172      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
173    
174    checkpoint60
175    --->>> This is the last checkpoint for which generating the adjoint
176    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
177    --->>> by default.
178    --->>> Future checkpoints will ommit this flag by default.
179    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
180    o pkg/grdchk: Add gradient check to etan0 perturbations.
181    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
182    o pkg/autodiff: more flexibility in zeroadj.
183      model/src: modifying do_oceanic_phys.F accordingly.
184    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
185    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
186      special setup of gmredi for which the adjoint is stable
187      enough for parameter optimization.
188    o bridging the gap between eddy stress and GM.
189      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
190          along with a change in CPP option (now ALLOW_EDDYPSI).
191      -> when using GM w/ GM_AdvForm:
192          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
193          is applied either in the tracer Eq. or in momentum Eq.
194          depending on data.gmredi (intro. GM_InMomAsStress).
195      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
196      The key modifications are in model/src/taueddy_external_forcing.F
197      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
198    
199    checkpoint59r
200    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
201      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
202      fix option to read coriolis(@ cell-corner) from files with CS-grid.
203    o pkg/mnc: add some attributes to standard 1D-coordinate variables
204    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
205      mass points, when using mnc for output
206      - add runtime parameter (missing_value, missing_value_int) to override
207        default (which is the value of getcon('UNDEF'))
208    o pkg/mnc: prepare mnc for the actual use of missing values with the
209      diagnostics package: small fix in mnc_cw_readwrite.template and more
210      initialisation of never used fields
211      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
212      versions
213    o pkg/thsice/thsice_ini_vars.F added default initial values so that
214      thermodynamics sea ice solver does not blow up when some initial fields
215      are missing.
216    o move from external_forcing_surf.F to ini_forcing.F
217      the p-coord. hack consisting in using pLoad to set phi0surf ;
218      update output of tutorial_global_oce_in_p (affected @ truncation level).
219    o Freshen up a bit hs94.1x64x5, notably:
220      remove rotationPeriod and tRef=5*0. (adjoint only), and add
221      exactConserv=.TRUE.
222    o pkg/generic_advdiff:
223      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
224      applies to files where Temperature & Salinity 2nd Order moments are used.
225    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
226      this uses a dynamically allocated internal state data structure
227      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
228      and requires a fortran 90 compiler
229    
230    checkpoint59q
231    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
232       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
233    o Refresh tutorial_global_oce_biogeo, notably:
234      - change bathymetry (put back seamounts in ACC, use hFacs)
235      - change EOS (POLY3 --> JMD95Z)
236      - use Bryan-Lewis vertical diffusivity
237      - use multidimensional advection
238      - remove old virtual virtual in dic pkg, now done through ptracer pkg
239      - change a couple of parameters in dic pkg
240    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
241    o pkg/obcs: change default to OBCSfixTopo = .true.,
242      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
243      - replace "debugMode" with "debugLevel .GE. debLevB"
244    o implementation of TAF directives for gchem,cfc,dic
245    o remove "exp5" (replaced by tutorial_deep_convection).
246    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
247      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
248      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
249      --> changes results in exp4, seaice_obcs
250    o tutorial_deep_convection :
251      update the set-up and increase resolution and domain size ; start
252      from pseudo initial conditions = output at t=120mn in order to see
253      something happening when running testreport.
254    o pkg/seaice: add os7mp as an advection scheme
255                  add check for advection schemes
256                  add a flag for restoring T and S underneath sea ice
257    o pkg/my82: add netcdf-support and diagnostics
258    o thsice pkg:
259      - Now hsMax limits snow height by turning it into ice following
260        flooding scheme (and now conserving energy)
261      - Slight rewriting of the formula in thsice_calc_thick.F
262      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
263      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
264    
265    checkpoint59p
266    o gchem / dic / cfc :
267      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
268      - add new parameter files: "data.dic" & "data.cfc" ;
269      - various re-arrangement in initialisation & header file ;
270      - fix tutorial_global_oce_biogeo for multi-threaded test.
271    o pkg/dic: test for "pickup_dic" file when restarting ;
272      if no pickup-file, can restart with a re-initialised pH (same as it did
273      before) providing pickupStrictlyMatch is set to False.
274    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
275      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
276    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
277      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
278    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
279     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
280       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
281    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
282       scheme to use for vorticty-term ;
283     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
284       (with default selectVortScheme, return to original discretisation)
285     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
286    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
287    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
288      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
289      also fix diagnostics VISCAHW & VISCA4W.
290    
291    checkpoint59o
292    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
293    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
294      move a few statemens out the main loop into separate loops
295    o pkg/shelfice:
296      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
297        (kg/m^2/s), does not break tests, because in verification/isomip,
298        rhoConstFresh=rhoConst (by accident)
299      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
300      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
301        new file model/src/seawater.F, so that they are available for all pkgs.
302      - convert potential temperature into in-situ temperature. This changes the
303        isomip tests => update tests
304    o add a flag writePickupAtEnd (default=true) to be able to suppress
305      writing a pickup at the last timestep
306    o tools/mpack-1.6 :
307      - disable automake (not working) and autoconf (not needed).
308      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
309        also cleaner with much less compilation warnings.
310    o pkg/profiles:
311      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
312      (for "less than 32 characters name" compiler requirement)
313    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
314      conditions that have a different sampling frequency than S/T/U/V obcs
315    o pkg/diagnostics (stats-diags):
316      - fix global Min/Max in case 1 processor get only empty tiles
317    o genmake2: replace (4 times)
318         make genmake_tc_1.o >> genmake_warnings 2>&1
319      with
320         COMM="$CC $CFLAGS -c genmake_tc_1.c"
321         echo $COMM >> genmake_warnings
322         $COMM >> genmake_warnings 2>&1
323      to make genmake2 always see the value of CC as specified in the optfile.
324    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
325      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
326      - modify verification advect_cs test to test SOM-advection on CS-grid.
327    o pkg/ctrl:
328      - Rewrite of ctrl_map_ini_ecco.F,
329        introducing a generic routine (ctrl_map_ini_gen.F).
330      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
331    
332    checkpoint59n
333    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
334      number in dedicate array "hdiag":
335      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
336        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
337      - many small changes (integer format) for large number of diagnostics
338      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
339        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
340    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
341      usingSphericalGrid, this allows to define the rotated grid coordinates
342      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
343      geographical coordinates according to the inverse of the rotation defined
344      by the Euler angles, so that Coriolis parameter and online-interpolation by
345      exf works with the geographical coordinates on XC/YC/XG/YG.
346      Naturally, this feature does not work with all packages, so some
347      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
348      profiles), because there the coordinates are assumed to be regular
349      spherical grid coordinates.
350    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
351      - introduce isopycnal diffusion coefficient control.
352    o tools/adjoint_options:
353      - additional control vector components.
354    o pkg/mnc: have mnc create marginally meaning full coordinate variables
355      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
356    o pkg/mypackage:
357      - add example of read/write pickup for state-var ;
358      - add entry points to the main code for state-vars diags & write-pickup.
359    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
360      transitions for useExfYearlyFields
361      - add new subroutine that determines the file to read from for
362        use*YearlyFields = .TRUE. and .FALSE.
363      - add a verification experiment to global_with_exf that tests
364        useExfYearlyFields with USE_EXF_INTERPOLATION defined
365    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
366      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
367      subroutines (which could be generated from a template, because they are
368      almost identical), for now they are included in obcs_prescribe_read.F for
369      simplicity
370    o pkg/exf:
371      - add a little more diagnostic to exf_interp_read (in analogy to
372        mds_read_field, can be turned off with debugLevel < debugLevA=1)
373      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
374        ugly but fast by unrolling short inner loops, inserting a unroll=8
375        directive in routine lagran, and splitting a loop and making do while the
376        outermost loop (the latter requires the intoduction of index arrays)
377    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
378    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
379      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
380    o verification/seaice_obcs: updated for restart test and latest options
381    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
382      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
383      for now this is only available for the C-grid code and also within
384      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
385    
386    checkpoint59m
387    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
388      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
389    o gad_som : fix flux output (& diagnostics) to have same units as other  
390      advection scheme fluxes (was previously multiplied by deltaT).  
391    o added verification/seaice_obcs both to test seaice open boundaries
392      and to provide an example matlab scrpt for generating them
393    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
394    o pkg/salt_plume: clean up salt_plume_frac.F to
395      remove redundancy in PlumeMethod 1 and 4
396    o pkg/kpp: added saltplume diagnostics
397    o pkg/obcs and pkg/seaice:
398      - do not set uice and vice to zero when OB*icefile are unspecified
399      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
400      - moved seaice tracer obcs after call to seaice_growth
401    o pkg/salt_plume: added various options for salt plume depth
402      criterion and for vertical distribution of the salt
403    
404    checkpoint59l
405    o pkg/ptracers: new version of ptracers pickup:
406      read meta file and write only fields which are needed to restart.
407      ( same logic as main pickup file ; also using pickupStrictlyMatch )
408    o pkg/seaice:
409      - add timescale for melting due to warm mixed layer as a means of
410        setting SEAICE_availHeatFrac more conveniently
411      - add a CPP-flag/runtime parameter check for flooding algorithm
412      - reformulated availHeat in seaice_growth.F to be independent of AREA
413    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
414      unit changes
415    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
416    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
417      SX vector computer.
418    o pkg/seaice:
419      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
420        seaice forcing fields can now be read only through pkg/exf
421      - removed some unused halos
422    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
423    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
424      or U/VICE from U/VWIND before computing U/VSTRESS
425    
426    checkpoint59k
427    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
428      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
429    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
430      all experiments pass when compile with un-initialised var. checking option.
431    o added pkg/salt_plume
432    o script to test restart (for now, in MITgcm_contrib/jmc_script)
433    o pkg/seaice: new read/write pickup version.
434      read meta file and write only fields which are needed to restart.
435      ( same logic as main pickup file ; also using pickupStrictlyMatch )
436    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
437    o lab_sea.hb87: modify the domain & update output.hb87.txt :
438      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
439      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
440      process. Fixed here by closing the domain at the Northern boundary.
441    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
442    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
443      a set of consecutive levels in/from a 3-D array.
444    o pkg/ptracers:
445      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
446      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
447    
448    checkpoint59j
449    o in pkgs: dic, obcs, offline, rbcs:
450      standard way to compute coeff. for time interpolation between 2 time reccords
451      which retains full precision (& make results less dependent on compiler).
452      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
453    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
454      packages instead of reading ice cover and wind speed separately
455    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
456     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
457      to allow to compile customized code before the update)
458    o cleaning-up:
459      - fix CPP instruction syntax in pkg/obcs
460      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
461        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
462      - fix some threads issue in IO parts.
463    o pkg/dic:
464      - add tons of "_d 0" (--> much better testreports !)
465       and then update outputs of tutorial_global_oce_biogeo
466    o pkg/mom_fluxform:
467      add a special version of momentum advection intended to conserve momentum
468      next to a bathymetry step or a coastline edge. (default = off = #undef)
469    o new read/write pickup version:
470      - for now, only implemented for main (mdsio) pickup file.
471      - write out only what is needed to restart; merge pickup_nh , pickup_ph
472        and main pickup together.
473      - read meta file; read only what is needed to restart; stop if a field
474        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
475        if it make sense (even if the restart is not perfect).
476      - if no meta file, assume that pickup to read corresponds exactly to
477        a pickup that would currently be written.
478      - read pickup written in the old format (until checkpoint59i) if it
479        recognizes an old meta file (no field-list).
480      - add a meta file in exp. which starts from a pickup: 2 cases:
481        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
482         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
483        b) a meta file describing the content of the associated pickup file
484         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
485    o pkg/mdsio & pkg/rw:
486      - new routine to read a meta file ; new set of routine to read
487        Multiple-fields file (with meta file).
488    o added open boundary conditions capability for seaice
489        HSNOW, HSALT, UICE, and VICE
490    
491    checkpoint59i
492    o adjoint:
493      * fix multiDimAdvection adjoint
494        (partial recomputation problem by TAF for fVerT(:,:,kDown)
495        and comlev1 size definition (maxpass vs. max. number of tracers)
496      * verification/global_ocean.90x45x15 adjoint now tests
497        NLFS and multiDimAdvection using DST3 (=30)
498      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
499    o pkg/kpp: add "_d 0" to real constant (if missing);
500      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
501      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
502    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
503      for internal parameters related to restart process (formerly from PARAMS.h)
504      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
505    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
506      as argument. (only atm2d & obcs write_pickup have not yet been updated)
507    o pkg/monitor:
508      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
509      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
510      - account for deep Atmosphere factor and density factor (anelastic)
511    o added open boundary conditions capability for seaice HEFF and AREA
512    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
513      thermodynamics
514      - requires a little reorganization, which affects the testreport results
515        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
516        so that now the conservative form is tested
517      - add a few comments
518    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
519    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
520    o add new diagnostics to seaice: advective, diffusive fluxes (only for
521      multidim-advection, for scheme 2 they are not filled) and transports,
522      thermodynamic growth rates
523    o change units of EmPmR (inside the code, + within coupling interface)
524      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
525      Affects results @ truncation level (cg2d match) and update output of
526       experiments: lab_sea(6), global_ocean.90x40x15(10),
527      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
528      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
529      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
530      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
531    
532    checkpoint59h
533    o pkg/exf:
534      - improve vectorization by moving if-statement out of loops in
535        exf_mapfields, exf_radiation
536      - exf_bulkformulae.F: introduce 2D fields and vectorize code
537    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
538    o testreport:
539      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
540        monitor & update offline_exf_seaice exp. output.
541      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
542    o pkg/seaice:
543      - bug fix in the evp solver: boundary conditions were affected be
544        masking of zMax/zMin (changes results)
545      - minor bug fix in boundary conditions in seaice_calc_strainrates
546        (changes results for no_slip)
547      - seaice_lsr.F: make interpolation of eta dependent on boundaries
548      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
549      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
550        stress formulation and no-slip boundary conditions
551    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
552      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
553    o pkg/seaice: a first HSALT time stepping equation has been checked in
554    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
555      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
556      without requiring DO-IF statements
557    o pkg/thsice:
558      use continuous power-law function for partition of energy between lateral
559      melting/freezing and thinning/thickening ; old code using step function
560      still available with #undef THSICE_FRACEN_POWERLAW
561      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
562    o testreport: change AD testing : check against results/output_adm.txt
563      using same scripts as for forward test.
564    
565    checkpoint59g
566    o adjoint testing: in preparation for changing testreport:
567      - output format: cost and grad written on separated lines
568      - ad output results in directory "results" (instead of "results_ad")
569    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
570    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
571    o pkg/ecco: allow user defined cost function contributions
572    o testreport:
573      Allow to choose (per experiment) the list of tested output variables
574       and the main variable (used to issue a pass/FAIL ) ;
575      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
576      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
577      Also modify printing of summary:
578       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
579       b) echo the list of tested variables in the individual summary.txt of
580          each experiment.
581    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
582      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
583      (but still depend on the tile decompostion of the domain).
584    o pkg/seaice: change a discretization detail to make the B-grid code
585      "more symmetric". This change is likely to remove all "ridges/leads" that
586      where quasi-aligned with the grid in B-grid solutions. It may also be
587      the solution to the stress coupling issues with the B-grid.
588    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
589      remove .cvsignore from input dir. (since testreport no longer run here).
590    o pkg/thsice:
591     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
592     - fix reshaping of sea-ice just after advection:
593       melt all the ice only if ice-volume is too small.
594     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
595       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
596     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
597    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
598      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
599    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
600      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
601      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
602      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
603      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
604      -> update output.txt
605    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
606     this affects truncation error: -> update output.txt of exp:
607      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
608      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
609    
610    checkpoint59f
611    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
612    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
613      a bounded range (in forward mode)
614    o pkg/ecco, ctrl, autodiff and mom_common:
615     internal parameter controls, completements of implementations
616    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
617    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
618      (not seem any difference in testing results).
619    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
620       at face corners.
621    o pkg/generic_advdiff:
622     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
623      loop range indices for computing vertical advection tendency
624      and do the calculation in the interior only (no overlap) ;
625      for now, only implemented for SOM advection (to save CPU time).
626     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
627    o exch2 adjoint
628      First set of changes:
629      - add exch2 hand-written adjoint templates
630      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
631        This will require cleanup in pkg/autodiff/*.F
632        (changed routines currently kept separate in verif. code/)
633      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
634        that used to hide exch2 or cubed-sphere specific code
635        (commented via 'cph-exch2')
636    o pkg/seaice
637      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
638    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
639       output of global_ocean.cs32x15.thsice .
640    
641    checkpoint59e
642    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
643      for B-grid vector (not yet tested) and C-grid vector (<- only used
644      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
645    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
646      (#ifdef ALLOW_SALT_PLUME)
647    o gather_2d/scatter_2d: removed halo regions
648    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
649      scheme and the corresponding test case (under front_relax dir). For now,
650      only available with Skew-flux form and not yet tested in realistic set-up.
651      adjoint: store directives updated, but gradient checks deteriorated,
652      so maybe GM/Redi adjoint is now broken.
653    o seaice adjoint
654      * add AREA, HEFF, HSNOW as control variable
655        (should not change lab_sea results)
656      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
657    o pkg/seaice:
658      * added computation of saltFlux in seaice_growth;
659        For time being, sea ice salinity is assumed constant
660        contribution of snow flooding to freshening of sea ice is neglected.
661        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
662        defaults to 0.0 in order to maintain backward compatibility.
663        Typical values for SEAICE_salinity are 4 to 10 g/kg.
664      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
665      * added SEAICE_availHeatFrac, which specifies fraction of surface level
666        heat content used to melt or grow ice
667      * commented out cap of HICE: it helps keep ice thinner
668      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
669      * applied OBCS T/S mask to HEFFM sea ice mask
670    
671  checkpoint59d  checkpoint59d
672  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
673   for {PKG} state variables, and called from DO_STATEVARS_DIAGS.   for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
# Line 172  o in FFIELDS.h: Line 836  o in FFIELDS.h:
836       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
837  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
838  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
839      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
840        are no longer updating the vertical diffusivity array
841        (passed as argument) but are (re-) setting those arrays.
842  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
843    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
844      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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