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revision 1.763 by mlosch, Tue Jan 9 13:36:19 2007 UTC revision 1.1054 by jmc, Sun Jan 25 20:26:00 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/diagnostics with "periodic averaging diagnostics":
8      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
9    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
10    o pkg/obcs: fix loop ranges for balancing code
11    o pkg/flt:
12     - improve criteria for finding which tile owns a float.
13     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
14    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
15      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
16      with ocean biogeo)
17    o pkg/flt:
18     - do some cleaning and fix the restart ;
19     - add output.txt in flt_example/results to get this pkg tested.
20    o genmake2: add an EXTENDED_SRC option and flag.
21       for now, cannot be turned on on command line (only through genmake_local)
22    o pkg/mdsio: read/write vector:
23     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
24     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
25       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
26     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
27      (drop to 4 digits matching for grad). But this test does not look very
28      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
29    
30    checkpoint61g
31    o pkg/flt:
32      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
33       + make OPTIONS file more standard.
34      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
35      - fix _BYTESWAPIO CPP-Flag
36      - standard reading of file-parameter "data.flt"
37      - fix argument list of S/R FLT_RESTART
38      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
39    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
40    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
41      a still unfixed compiler/optimization bug
42    
43    checkpoint61f
44    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
45      update results of global_ocean.cs32x15.icedyn test.
46    o move getcon.F from model/src to pkg/fizhi.
47    o pkg/exf: add parameter for extrapolation of temp up to the surface
48       and option to prevent negative evap (in bulk_largeyeager04 only).
49    o Prather Advection scheme: fix tracer conservation for divergent flow
50      (e.g., when using NonLin Free-Surface).
51    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
52    o gmredi (Visbeck-variable-K):
53     - add more parameters to Visbeck-variable-K.
54     - use a 5 points average for dSigmaR in Visbeck-K calculation
55       (more "homogenous": same stencil and same weights as in dSigmaH)
56     - update output of ideal_2D_oce experiment.
57    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
58      (#undef REAL4_IS_SLOW)
59     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
60       coordinate variable
61     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
62       (surface forcing fields), removes some of the functionality
63     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
64     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
65       probably not all: copy _RS surface flux fields to RL field before
66       calling DIAGNOSTICS_FILL
67     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
68       real*4 (CALL EXCH_*_RS) versions.
69     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
70       (generate new output).
71    
72    checkpoint61e
73    o gmredi (Visbeck-variable-K):
74      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
75      - change computation of Visbeck-K where Slope > Smax :        
76        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
77        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
78    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
79      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
80    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
81    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
82      does not become too large (to avoid precision problems in implicit-diffusion
83      solver); update ideal_2D_oce output.
84    o pkg ggl90:
85      - in ggl90_cal.F: compute only one set of visc/diff, used to
86        step forward TKE/T/S/momentum
87      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
88        have Prandlt =1)
89    o gmredi (fm07):
90      - add lower limit on Transition layer thickness + lower limit on 1/lambda
91      - allow to set few more params from data.gmredi
92    o pkg ggl90:
93          - add missing sqrt(2) factor in computation of mixing length
94            scale in ggl90_calc.F
95            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
96    
97    checkpoint61d
98    o adjoint modifs
99      - adapt to new field rhoInSitu
100      - allow to revert from StoreDynVars2D, StoreDynVars3D
101        to individual fields
102        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
103    o store 3-D (in-situ) density in commom block (DYNVARS.h)
104     - save 1 rho computation.
105     - no longer modify T & S inland when using down_slope pkg.
106    o gad_som : allow to switch to SOM advection for T & S without corresponding
107      pickup files (using new S/R: MDS_CHECK4FILE).
108    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
109      (for useSingleCpuIO to work in multi-threaded)
110    o pkg/shelfice:
111     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
112       with SHELFICEtopoFile in data.shelfice
113     - move code for reading ice shelf topography and modifying hFacC into separate
114       subroutines of the shelfice package
115     - separate initialisation of "fixed" and "variable" variables
116     - kTopC is not (yet) replaced by kSurfC, although this is possible
117    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
118    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
119      and rename:
120      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
121      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
122    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
123    
124    checkpoint61c
125    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
126      to add mass source/sink of fluid in the interior (3-D generalisation
127      of oceanic real-fresh water flux).
128    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
129    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
130    o new pkg: down_slope
131      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
132      - presently, modify T & S inland (dwnslp_calc_rho.F).
133        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
134      - implementation for ocean in P-coords not tested.
135      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
136    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
137      (to facilitate conversion of oceanic pkg to p-coordinate).
138    o change FIND_RHO to FIND_RHO_2D :
139      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
140    o new pkg: cheapaml
141    
142    checkpoint61b
143    o exch2:
144      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
145      - no longer depend on the order sequence (N,S,E,W).
146      - 3rd exchange no longer needed (tested with 24 tiles).
147      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
148      - exch_UV_A-grid readily available (but not yet tested).
149      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
150      (both are no longer needed) in exch_uv: no effect in forward run; but
151       get truncation error differences with adjoint exch.
152    o exch2:
153     - change index-bounds storage (moved from target to local tile,
154       more intuitive this way) ; rename/remove some variables.
155     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
156    
157    checkpoint61a
158    o exch2/matlab-topology-generator:
159      fix bug in index bounds for N-S internal exchange (hard to tell if this
160      had any effect on the solution).
161    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
162      is exceeded
163    o testreport: modify syntax of awk, so that it works also with
164      awk, and not only with nawk and gawk
165    
166    checkpoint61
167    o autodiff
168      Change default for TAF usage by removing argument '-nonew_arg'
169      This changes TAF subroutine argument list (ordering of active var.)
170      Omission of this flag leads to incompatibility w.r.t. TAMC
171      To restore TAMC-compatibility, need following modifs:
172      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
173      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
174      Tested TAF version is 1.9.22
175      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
176    
177    checkpoint60
178    --->>> This is the last checkpoint for which generating the adjoint
179    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
180    --->>> by default.
181    --->>> Future checkpoints will ommit this flag by default.
182    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
183    o pkg/grdchk: Add gradient check to etan0 perturbations.
184    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
185    o pkg/autodiff: more flexibility in zeroadj.
186      model/src: modifying do_oceanic_phys.F accordingly.
187    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
188    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
189      special setup of gmredi for which the adjoint is stable
190      enough for parameter optimization.
191    o bridging the gap between eddy stress and GM.
192      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
193          along with a change in CPP option (now ALLOW_EDDYPSI).
194      -> when using GM w/ GM_AdvForm:
195          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
196          is applied either in the tracer Eq. or in momentum Eq.
197          depending on data.gmredi (intro. GM_InMomAsStress).
198      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
199      The key modifications are in model/src/taueddy_external_forcing.F
200      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
201    
202    checkpoint59r
203    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
204      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
205      fix option to read coriolis(@ cell-corner) from files with CS-grid.
206    o pkg/mnc: add some attributes to standard 1D-coordinate variables
207    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
208      mass points, when using mnc for output
209      - add runtime parameter (missing_value, missing_value_int) to override
210        default (which is the value of getcon('UNDEF'))
211    o pkg/mnc: prepare mnc for the actual use of missing values with the
212      diagnostics package: small fix in mnc_cw_readwrite.template and more
213      initialisation of never used fields
214      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
215      versions
216    o pkg/thsice/thsice_ini_vars.F added default initial values so that
217      thermodynamics sea ice solver does not blow up when some initial fields
218      are missing.
219    o move from external_forcing_surf.F to ini_forcing.F
220      the p-coord. hack consisting in using pLoad to set phi0surf ;
221      update output of tutorial_global_oce_in_p (affected @ truncation level).
222    o Freshen up a bit hs94.1x64x5, notably:
223      remove rotationPeriod and tRef=5*0. (adjoint only), and add
224      exactConserv=.TRUE.
225    o pkg/generic_advdiff:
226      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
227      applies to files where Temperature & Salinity 2nd Order moments are used.
228    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
229      this uses a dynamically allocated internal state data structure
230      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
231      and requires a fortran 90 compiler
232    
233    checkpoint59q
234    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
235       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
236    o Refresh tutorial_global_oce_biogeo, notably:
237      - change bathymetry (put back seamounts in ACC, use hFacs)
238      - change EOS (POLY3 --> JMD95Z)
239      - use Bryan-Lewis vertical diffusivity
240      - use multidimensional advection
241      - remove old virtual virtual in dic pkg, now done through ptracer pkg
242      - change a couple of parameters in dic pkg
243    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
244    o pkg/obcs: change default to OBCSfixTopo = .true.,
245      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
246      - replace "debugMode" with "debugLevel .GE. debLevB"
247    o implementation of TAF directives for gchem,cfc,dic
248    o remove "exp5" (replaced by tutorial_deep_convection).
249    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
250      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
251      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
252      --> changes results in exp4, seaice_obcs
253    o tutorial_deep_convection :
254      update the set-up and increase resolution and domain size ; start
255      from pseudo initial conditions = output at t=120mn in order to see
256      something happening when running testreport.
257    o pkg/seaice: add os7mp as an advection scheme
258                  add check for advection schemes
259                  add a flag for restoring T and S underneath sea ice
260    o pkg/my82: add netcdf-support and diagnostics
261    o thsice pkg:
262      - Now hsMax limits snow height by turning it into ice following
263        flooding scheme (and now conserving energy)
264      - Slight rewriting of the formula in thsice_calc_thick.F
265      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
266      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
267    
268    checkpoint59p
269    o gchem / dic / cfc :
270      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
271      - add new parameter files: "data.dic" & "data.cfc" ;
272      - various re-arrangement in initialisation & header file ;
273      - fix tutorial_global_oce_biogeo for multi-threaded test.
274    o pkg/dic: test for "pickup_dic" file when restarting ;
275      if no pickup-file, can restart with a re-initialised pH (same as it did
276      before) providing pickupStrictlyMatch is set to False.
277    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
278      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
279    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
280      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
281    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
282     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
283       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
284    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
285       scheme to use for vorticty-term ;
286     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
287       (with default selectVortScheme, return to original discretisation)
288     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
289    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
290    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
291      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
292      also fix diagnostics VISCAHW & VISCA4W.
293    
294    checkpoint59o
295    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
296    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
297      move a few statemens out the main loop into separate loops
298    o pkg/shelfice:
299      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
300        (kg/m^2/s), does not break tests, because in verification/isomip,
301        rhoConstFresh=rhoConst (by accident)
302      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
303      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
304        new file model/src/seawater.F, so that they are available for all pkgs.
305      - convert potential temperature into in-situ temperature. This changes the
306        isomip tests => update tests
307    o add a flag writePickupAtEnd (default=true) to be able to suppress
308      writing a pickup at the last timestep
309    o tools/mpack-1.6 :
310      - disable automake (not working) and autoconf (not needed).
311      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
312        also cleaner with much less compilation warnings.
313    o pkg/profiles:
314      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
315      (for "less than 32 characters name" compiler requirement)
316    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
317      conditions that have a different sampling frequency than S/T/U/V obcs
318    o pkg/diagnostics (stats-diags):
319      - fix global Min/Max in case 1 processor get only empty tiles
320    o genmake2: replace (4 times)
321         make genmake_tc_1.o >> genmake_warnings 2>&1
322      with
323         COMM="$CC $CFLAGS -c genmake_tc_1.c"
324         echo $COMM >> genmake_warnings
325         $COMM >> genmake_warnings 2>&1
326      to make genmake2 always see the value of CC as specified in the optfile.
327    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
328      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
329      - modify verification advect_cs test to test SOM-advection on CS-grid.
330    o pkg/ctrl:
331      - Rewrite of ctrl_map_ini_ecco.F,
332        introducing a generic routine (ctrl_map_ini_gen.F).
333      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
334    
335    checkpoint59n
336    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
337      number in dedicate array "hdiag":
338      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
339        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
340      - many small changes (integer format) for large number of diagnostics
341      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
342        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
343    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
344      usingSphericalGrid, this allows to define the rotated grid coordinates
345      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
346      geographical coordinates according to the inverse of the rotation defined
347      by the Euler angles, so that Coriolis parameter and online-interpolation by
348      exf works with the geographical coordinates on XC/YC/XG/YG.
349      Naturally, this feature does not work with all packages, so some
350      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
351      profiles), because there the coordinates are assumed to be regular
352      spherical grid coordinates.
353    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
354      - introduce isopycnal diffusion coefficient control.
355    o tools/adjoint_options:
356      - additional control vector components.
357    o pkg/mnc: have mnc create marginally meaning full coordinate variables
358      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
359    o pkg/mypackage:
360      - add example of read/write pickup for state-var ;
361      - add entry points to the main code for state-vars diags & write-pickup.
362    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
363      transitions for useExfYearlyFields
364      - add new subroutine that determines the file to read from for
365        use*YearlyFields = .TRUE. and .FALSE.
366      - add a verification experiment to global_with_exf that tests
367        useExfYearlyFields with USE_EXF_INTERPOLATION defined
368    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
369      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
370      subroutines (which could be generated from a template, because they are
371      almost identical), for now they are included in obcs_prescribe_read.F for
372      simplicity
373    o pkg/exf:
374      - add a little more diagnostic to exf_interp_read (in analogy to
375        mds_read_field, can be turned off with debugLevel < debugLevA=1)
376      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
377        ugly but fast by unrolling short inner loops, inserting a unroll=8
378        directive in routine lagran, and splitting a loop and making do while the
379        outermost loop (the latter requires the intoduction of index arrays)
380    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
381    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
382      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
383    o verification/seaice_obcs: updated for restart test and latest options
384    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
385      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
386      for now this is only available for the C-grid code and also within
387      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
388    
389    checkpoint59m
390    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
391      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
392    o gad_som : fix flux output (& diagnostics) to have same units as other  
393      advection scheme fluxes (was previously multiplied by deltaT).  
394    o added verification/seaice_obcs both to test seaice open boundaries
395      and to provide an example matlab scrpt for generating them
396    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
397    o pkg/salt_plume: clean up salt_plume_frac.F to
398      remove redundancy in PlumeMethod 1 and 4
399    o pkg/kpp: added saltplume diagnostics
400    o pkg/obcs and pkg/seaice:
401      - do not set uice and vice to zero when OB*icefile are unspecified
402      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
403      - moved seaice tracer obcs after call to seaice_growth
404    o pkg/salt_plume: added various options for salt plume depth
405      criterion and for vertical distribution of the salt
406    
407    checkpoint59l
408    o pkg/ptracers: new version of ptracers pickup:
409      read meta file and write only fields which are needed to restart.
410      ( same logic as main pickup file ; also using pickupStrictlyMatch )
411    o pkg/seaice:
412      - add timescale for melting due to warm mixed layer as a means of
413        setting SEAICE_availHeatFrac more conveniently
414      - add a CPP-flag/runtime parameter check for flooding algorithm
415      - reformulated availHeat in seaice_growth.F to be independent of AREA
416    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
417      unit changes
418    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
419    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
420      SX vector computer.
421    o pkg/seaice:
422      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
423        seaice forcing fields can now be read only through pkg/exf
424      - removed some unused halos
425    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
426    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
427      or U/VICE from U/VWIND before computing U/VSTRESS
428    
429    checkpoint59k
430    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
431      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
432    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
433      all experiments pass when compile with un-initialised var. checking option.
434    o added pkg/salt_plume
435    o script to test restart (for now, in MITgcm_contrib/jmc_script)
436    o pkg/seaice: new read/write pickup version.
437      read meta file and write only fields which are needed to restart.
438      ( same logic as main pickup file ; also using pickupStrictlyMatch )
439    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
440    o lab_sea.hb87: modify the domain & update output.hb87.txt :
441      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
442      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
443      process. Fixed here by closing the domain at the Northern boundary.
444    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
445    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
446      a set of consecutive levels in/from a 3-D array.
447    o pkg/ptracers:
448      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
449      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
450    
451    checkpoint59j
452    o in pkgs: dic, obcs, offline, rbcs:
453      standard way to compute coeff. for time interpolation between 2 time reccords
454      which retains full precision (& make results less dependent on compiler).
455      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
456    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
457      packages instead of reading ice cover and wind speed separately
458    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
459     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
460      to allow to compile customized code before the update)
461    o cleaning-up:
462      - fix CPP instruction syntax in pkg/obcs
463      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
464        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
465      - fix some threads issue in IO parts.
466    o pkg/dic:
467      - add tons of "_d 0" (--> much better testreports !)
468       and then update outputs of tutorial_global_oce_biogeo
469    o pkg/mom_fluxform:
470      add a special version of momentum advection intended to conserve momentum
471      next to a bathymetry step or a coastline edge. (default = off = #undef)
472    o new read/write pickup version:
473      - for now, only implemented for main (mdsio) pickup file.
474      - write out only what is needed to restart; merge pickup_nh , pickup_ph
475        and main pickup together.
476      - read meta file; read only what is needed to restart; stop if a field
477        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
478        if it make sense (even if the restart is not perfect).
479      - if no meta file, assume that pickup to read corresponds exactly to
480        a pickup that would currently be written.
481      - read pickup written in the old format (until checkpoint59i) if it
482        recognizes an old meta file (no field-list).
483      - add a meta file in exp. which starts from a pickup: 2 cases:
484        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
485         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
486        b) a meta file describing the content of the associated pickup file
487         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
488    o pkg/mdsio & pkg/rw:
489      - new routine to read a meta file ; new set of routine to read
490        Multiple-fields file (with meta file).
491    o added open boundary conditions capability for seaice
492        HSNOW, HSALT, UICE, and VICE
493    
494    checkpoint59i
495    o adjoint:
496      * fix multiDimAdvection adjoint
497        (partial recomputation problem by TAF for fVerT(:,:,kDown)
498        and comlev1 size definition (maxpass vs. max. number of tracers)
499      * verification/global_ocean.90x45x15 adjoint now tests
500        NLFS and multiDimAdvection using DST3 (=30)
501      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
502    o pkg/kpp: add "_d 0" to real constant (if missing);
503      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
504      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
505    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
506      for internal parameters related to restart process (formerly from PARAMS.h)
507      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
508    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
509      as argument. (only atm2d & obcs write_pickup have not yet been updated)
510    o pkg/monitor:
511      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
512      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
513      - account for deep Atmosphere factor and density factor (anelastic)
514    o added open boundary conditions capability for seaice HEFF and AREA
515    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
516      thermodynamics
517      - requires a little reorganization, which affects the testreport results
518        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
519        so that now the conservative form is tested
520      - add a few comments
521    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
522    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
523    o add new diagnostics to seaice: advective, diffusive fluxes (only for
524      multidim-advection, for scheme 2 they are not filled) and transports,
525      thermodynamic growth rates
526    o change units of EmPmR (inside the code, + within coupling interface)
527      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
528      Affects results @ truncation level (cg2d match) and update output of
529       experiments: lab_sea(6), global_ocean.90x40x15(10),
530      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
531      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
532      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
533      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
534    
535    checkpoint59h
536    o pkg/exf:
537      - improve vectorization by moving if-statement out of loops in
538        exf_mapfields, exf_radiation
539      - exf_bulkformulae.F: introduce 2D fields and vectorize code
540    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
541    o testreport:
542      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
543        monitor & update offline_exf_seaice exp. output.
544      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
545    o pkg/seaice:
546      - bug fix in the evp solver: boundary conditions were affected be
547        masking of zMax/zMin (changes results)
548      - minor bug fix in boundary conditions in seaice_calc_strainrates
549        (changes results for no_slip)
550      - seaice_lsr.F: make interpolation of eta dependent on boundaries
551      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
552      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
553        stress formulation and no-slip boundary conditions
554    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
555      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
556    o pkg/seaice: a first HSALT time stepping equation has been checked in
557    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
558      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
559      without requiring DO-IF statements
560    o pkg/thsice:
561      use continuous power-law function for partition of energy between lateral
562      melting/freezing and thinning/thickening ; old code using step function
563      still available with #undef THSICE_FRACEN_POWERLAW
564      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
565    o testreport: change AD testing : check against results/output_adm.txt
566      using same scripts as for forward test.
567    
568    checkpoint59g
569    o adjoint testing: in preparation for changing testreport:
570      - output format: cost and grad written on separated lines
571      - ad output results in directory "results" (instead of "results_ad")
572    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
573    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
574    o pkg/ecco: allow user defined cost function contributions
575    o testreport:
576      Allow to choose (per experiment) the list of tested output variables
577       and the main variable (used to issue a pass/FAIL ) ;
578      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
579      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
580      Also modify printing of summary:
581       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
582       b) echo the list of tested variables in the individual summary.txt of
583          each experiment.
584    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
585      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
586      (but still depend on the tile decompostion of the domain).
587    o pkg/seaice: change a discretization detail to make the B-grid code
588      "more symmetric". This change is likely to remove all "ridges/leads" that
589      where quasi-aligned with the grid in B-grid solutions. It may also be
590      the solution to the stress coupling issues with the B-grid.
591    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
592      remove .cvsignore from input dir. (since testreport no longer run here).
593    o pkg/thsice:
594     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
595     - fix reshaping of sea-ice just after advection:
596       melt all the ice only if ice-volume is too small.
597     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
598       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
599     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
600    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
601      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
602    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
603      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
604      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
605      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
606      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
607      -> update output.txt
608    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
609     this affects truncation error: -> update output.txt of exp:
610      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
611      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
612    
613    checkpoint59f
614    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
615    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
616      a bounded range (in forward mode)
617    o pkg/ecco, ctrl, autodiff and mom_common:
618     internal parameter controls, completements of implementations
619    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
620    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
621      (not seem any difference in testing results).
622    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
623       at face corners.
624    o pkg/generic_advdiff:
625     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
626      loop range indices for computing vertical advection tendency
627      and do the calculation in the interior only (no overlap) ;
628      for now, only implemented for SOM advection (to save CPU time).
629     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
630    o exch2 adjoint
631      First set of changes:
632      - add exch2 hand-written adjoint templates
633      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
634        This will require cleanup in pkg/autodiff/*.F
635        (changed routines currently kept separate in verif. code/)
636      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
637        that used to hide exch2 or cubed-sphere specific code
638        (commented via 'cph-exch2')
639    o pkg/seaice
640      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
641    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
642       output of global_ocean.cs32x15.thsice .
643    
644    checkpoint59e
645    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
646      for B-grid vector (not yet tested) and C-grid vector (<- only used
647      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
648    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
649      (#ifdef ALLOW_SALT_PLUME)
650    o gather_2d/scatter_2d: removed halo regions
651    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
652      scheme and the corresponding test case (under front_relax dir). For now,
653      only available with Skew-flux form and not yet tested in realistic set-up.
654      adjoint: store directives updated, but gradient checks deteriorated,
655      so maybe GM/Redi adjoint is now broken.
656    o seaice adjoint
657      * add AREA, HEFF, HSNOW as control variable
658        (should not change lab_sea results)
659      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
660    o pkg/seaice:
661      * added computation of saltFlux in seaice_growth;
662        For time being, sea ice salinity is assumed constant
663        contribution of snow flooding to freshening of sea ice is neglected.
664        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
665        defaults to 0.0 in order to maintain backward compatibility.
666        Typical values for SEAICE_salinity are 4 to 10 g/kg.
667      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
668      * added SEAICE_availHeatFrac, which specifies fraction of surface level
669        heat content used to melt or grow ice
670      * commented out cap of HICE: it helps keep ice thinner
671      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
672      * applied OBCS T/S mask to HEFFM sea ice mask
673    
674    checkpoint59d
675    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
676     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
677     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
678    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
679     and change default value of parameter "GM_Small_Number";
680     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
681       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
682       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
683    o pkg/ecco: cost function when applying pkg/smooth to controls
684    o pkg/ctrl: add forcingPrecond run time parameter
685    o pkg/seaice:
686     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
687     - fix bug in metric terms of u-equation in LSR solver (implicit part),
688       changes verification/lab_sea
689     - rearrange implicit part of u-equation in LSR solver to make it easier to
690       read, understand, and debug. This causes changes at the truncation level.
691     - fix (serious) bug in the boundary conditions (sign error in the implicit
692       part) of the LSR solver. Changes all LSR results.
693     - fixed problem with HSNOW initialization to avoid thick snow when AREA
694       is initilized with small values - does not change lab_sea results.
695     - added HsnowFile initialization capability
696    o pkg/smooth: addition to model/src and pkg/ctrl so allow
697     initialization of pkg/smooth and application to control vector
698    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
699    o dependencies: pkg/profiles requires pkg/cal
700    o pkg/profiles:
701     - added option ALLOW_PROFILES_GENERICGRID
702         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
703         that interpolation information (grid points and coefficients) is provided
704         within the netcdf input files.
705         -> sample matlab scripts can be found in MITgcm_contrib/gael
706         that allow you to prepare netcdf input files.
707     - also modified: cleaner include statements, cleaner error print statements,
708       cleaner stops when error, and more tests of the netcdf input files consistency.
709    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
710    o pkg/seaice:
711     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
712       requires a new routine: seaice_diagnostics_fill.F
713     - make sure that seaice does not move if not forced (pressure replacement
714       method, Hibler and Ip, 1995), changes results
715     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
716     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
717       It is turned off by default (=-1.), because it changes the results.
718     - make it possible to read AREA from a file, too.
719    
720    checkpoint59c
721    o add S/R and diagnostics for oceanic mixed-layer depth
722    o move GMRedi call after all vertical mixing schemes (including KPP)
723    o pkg/thsice:
724     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
725      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
726    o pkg/obcs:
727     - bug fix for balance code
728    o pkg/seaice:
729      - allow values of SEAICE_elasticParm > 1
730      - add new parameter SEAICE_evpTauRelax as an alternative
731        to SEAICE_elasticParm
732      - make lsr boundary conditions free slip (by default), changes result
733      - add code for no slip boundary conditions for lsr
734      - set minimum of zeta to zero (and not 4e8) (changes results)
735      - add a cap on AREA after advecting AREA if seaice_growth is not called
736    o change calculation of Visbeck K:
737      - no longer depend on tapering scheme; instead, compute slope (limited
738        by GM_maxSlope). this is equivalent to what was comuted before with
739        clipping or linear tappering.
740      - fix vertical averaging (wrong by 1/2 level)
741      - leave the old version (but will not be maintained) within
742        #ifdef OLD_VISBECK_CALC / #endif
743      - update output of exp. ideal_2D_oce
744    o change error catch in calc_r_star to improve vectorization
745    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
746      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
747    o adjoint:
748      Re-organized adjoint checkpointing according to Matt Mazloff
749      (but with modifs/completions/cleanups)
750      Storing is now bundled into large arrays to optimized I/O
751      (and second step in cleanup of the_main_loop)
752    
753    checkpoint59b
754    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
755      - export/import (between ocean & coupler) fields needed for ocean DIC.
756    o pkg/seaice:
757      - get rid of three more exchanges seaice_calc_viscosities (required
758        different loop boundaries in seaice_lsr and seaice_ocean_stress)
759      - bug fix in seaice_ocean_stress (update of lab_sea required)
760      - reduce loop boundaries to necessary minimum also in seaice_evp
761      - go back to the old way of computing deltaC/Z as the adjoint likes that
762        better
763    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
764      passive tracer to an Age Tracer) + update output.txt
765    o pkg/exf:
766      - implement A-grid / C-grid selection for wind-stress input files.
767      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
768      for now, in exf_bulk_largeyeager04.F only :
769      - change implementation for case where windspeed + 2. components wind-stress
770        are read-in. AND use rhoConstFresh to convert evap.
771    o pkg/seaice:
772      - use correct EXCH_UV for wind-forcing (on A-grid).
773      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
774        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
775    o pkg/exf:
776      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
777      EXF_INTERPOLATION:
778      - merge global_with_exf/code version of exf_interp_read.F
779        to the main code ;
780      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
781        reading the file ; Important: This options needs to be defined to recover
782        previous code.
783        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
784      - no longer loose real*8 precision along the way when using exf_iprec=64.
785    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
786      - change discretisation of evp-solver in order to avoid another exchange
787        (changes lab_sea) and clean up a little
788      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
789        help the adjoint (this also changes the results slightly)
790      - add a few "_d 0" where they had been missing in seaice_evp.F
791      - cleaning up: remove unused seaice_calc_rhs.F
792    o pkg/exf: some cleaning-up:
793      - change various "constants" into runtime parameters
794      - cleaned-up Large&Yeager04 routine which should eventually
795        replace exf_bulkformulae.F (changed names of S/R and CPP)
796        and merged various ALLOW_ATM_WIND options
797     only used with thsice pkg (in thsice_get_exf.F):
798      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
799        which are used when useStabilityFct_overIce=TRUE (= the default)
800      - change default values of ice & snow emissivity and scale downward LW
801        by ice & snow emissivity.
802    o pkg/thsice:
803     fix few little problems, in thsice_calc_thickn.F:
804      - growth vertically (and not laterally) if iceFrac == iceMaskMax
805      - melt only laterally if hIce < hThinIce (as the comments say)
806      and in thsice_extend.F:
807      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
808      - start to form ice as soon as the minimum ice-volume is reachable.
809     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
810      and cpl_aim+ocn
811    o pkg/kpp
812     - move computation of surface related input fields to KPP into a new
813       subroutine kpp_forcing_surf.F
814     - remove wrong (within bi,bj loops) EXCH calls.
815     - little cleaning (add argument myThid in last position, cvs header ...)
816     - for now, fix conservation problem by exchanging KPPviscAz (may not
817       be the best fix)
818    o pkg/seaice
819     - check for inconsistent evp parameter/cpp-flag combination
820     - remove leftover errIO flat for obsolete name list error handling
821    o OpenAD
822     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
823    
824    checkpoint59a
825    o pkg/seaice: some parameter clarifications and a little bit of clean up
826    o pkg/thsice: rename run-time parameters:
827       himin       -> hIceMin
828       himin0      -> hThinIce
829       hihig       -> hThickIce
830       i0          -> i0swFrac
831       transCoef   -> bMeltCoef
832       frac_energy -> fracMelting
833      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
834       with default values (for now) that do not change the results.
835      remove old version of thsice vars advection in pkg/seaice.
836    o in FFIELDS.h:
837      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
838      - make pLoad & sIceLoad always available (but still only used if
839         ATMOSPHERIC_LOADING is #define).
840    o pkg/kpp: replaced _KPP_RL with _RL
841    o bug fixes for vertical diffusivity computations when both KPP and
842        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
843        are no longer updating the vertical diffusivity array
844        (passed as argument) but are (re-) setting those arrays.
845    o pkg/seaice: fix bug in evp solver, while doing that
846      - change (improve?) discretization of stress computations for both
847        cgrid-lsr and evp solver
848      - add a new routine to compute strain rates
849      - the above changes lab_sea results
850      - add no slip conditions for evp solver (off by default), lsr-version
851        may follow
852      - fix exchange for shear at Z-points (does not change lab_sea)
853      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
854        (to force the user to pick a time step since there is not "safe" way
855        of choosing it)
856      - add principal stress diagnostics
857      - rearrange fields for evp a little to avoid having to call a: too many
858        exchanges and b: exchanges for stress trensor components which we do
859        not have.
860      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
861        of evp, complete rewrite for lsr case (latter is does not yet work
862        in all cases)
863    o pkg/kpp: add code to have mixing in shelf ice caverns
864      - add myThid to all kpp routines (long overdue)
865    
866    checkpoint59
867    o pkg/exf:
868      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
869        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
870      - move exf header files from lower_case.h to UPPER_CASE.h ;
871        add missing cvs Header & Name
872      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
873      - add namelist param. selectStressGridPosition, exf_monFreq
874      - retire many _CLIM routines, and remove data.exf_clim
875        + params moved to data.exf
876        + climsst, climsss now handled by exf_set_gen, i.e.
877          climss?period=0 refers to constant field,
878          climss?period=-12 to monthly forcing
879      - split up namelists in data.exf
880    o pkg/seaice:
881      - remove seaice_exch and seaice_exch_uv
882      - remove superfluous exchange of theta
883      - add myThid to seaice_budget_ocean/ice
884      - add new interface for atmospheric wind forcing (C-grid only)
885        + new routine
886        + two new field (taux, tauy for stress over ice)
887        + removed one global field (DAIRN) for C-grid case only
888    o pkg/thsise
889      - 2nd set of modifs for thsice adjoint in conjunction with exf
890    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
891    
892    checkpoint58y_post
893    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
894      vertical diffusivity, similar to that in MOM4; turned on using
895      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
896      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
897    o Added capability for 3D specification of background vertical diffusion
898      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
899      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
900      "data" file that contains the 3D vertical diffusivity coefficients.
901    o ice dynamics (pkg/seaice) with thsice thermodynamics:
902      - add code within pkg thsice to advect & diffuse sea-ice fields
903      similar to (and will replace) what has been added in  seaice_advdiff.F,
904      but: - conserving Mass, Heat & Salt.
905           - better when using non-linear advection scheme (not yet fully tested)
906           - can also be used in atmospheric set-up (for now, only the diffusion).
907    
908    checkpoint58x_post
909    o IO option for global-file compact format:
910      - add options when generating topology (utils/exch2/matlab-topology-generator)
911      - add I/O capability (pkg/mdsio).
912      - adapt utils/matlab/rdmds.m to read this format.
913      for now long-line format not yet supported by pkg/mdsio (& exch2).
914    o shelfice: add a few diagnostics
915    
916    checkpoint58w_post
917    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
918      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
919      (and replace horiVertRatio in NH code).
920      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
921                         and tutorial_plume_on_slope (sensitive to truncation)
922    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
923      directly to drive seaice model (C-grid only)
924    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
925     - reintroduce computation of wind from stress,
926     - compute tau (in exf_bulkformulae.F) from windstress averaged to
927       mass points to avoid tau = 0
928     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
929    o rdmnc.m: make it work with "global" files created with gluemnc
930    o rdmnc.m : some improvements in dealing with singleton dimension
931      (tested on all testreport mnc output files).
932    o genmake2: disable pkg/profiles if netcdf test fails.
933    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
934    o move call to cal_readparms up to make calendar parameters/variable available
935      to all packages
936    
937    checkpoint58v_post
938    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
939      useDynP_inEos_Zc tested.
940    o pkg/exf: changes to properly interpolate/mask/scale initial fields
941    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
942      and portions thereof.  See read_cs.txt for description and examples.
943    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
944      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
945      following the great-circle arc between those 2 points.
946    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
947      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
948    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
949     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
950     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
951     - still needs work (not working with some options ; efficiency to improve)
952       and serious testing.
953     - use this scheme for temperature & salinity in 2 advection test exp.:
954       advect_xy & advect_xz, respectively.
955    
956    checkpoint58u_post
957    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
958    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
959    o testreport: add option "-skipdir" to skip some test.
960    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
961      momentum calculation.
962    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
963    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
964      remove checkpoint.F and the_correction_step.F (no longer used);
965      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
966    o add option (linFSConserveTr) to correct for tracer source/sink due to
967      Linear Free surface
968  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
969  o pkg/thsice: fix reading mnc-pickups  o pkg/thsice: fix reading mnc-pickups
970    

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