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revision 1.553 by jmc, Wed Sep 28 00:20:52 2005 UTC revision 1.1188 by jmc, Sat Oct 31 03:22:33 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/ggl90:
8     - fix previous modif (unfortunatly has not been documented here).
9    o pkg/seaice/autodiff:
10     - add CPP flag to include clipping of zeta in EVP code;
11       although clipping of zeta is not necessary for EVP and not recommended
12       it was done by default, now clipping is disabled by default
13     - modify computation and store zetaC/Z in seaice_evp for TAF
14     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
15     - change seaice_calc_viscosities/strainraties for better
16       vectorization after AD by TAF
17     - rearrange common blocks in SEAICE.h once again for easier dumps of
18       adjoint output, adjust adcommon.h and g_common.h
19     - change flux form of default advection scheme for better vectorization
20       of adjoint code
21     - modify lab_sea/input.lsr to test the flux form of default advection
22       scheme
23    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
24      transition in checkpoint61r)
25    
26    checkpoint61x
27    o adjoint: adding two new verification experiments
28      * tutorial_global_biogeo: an online dic sensitivity experiment
29        (work with G. Forget)
30      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
31        (an update of the Dutkiewicz et al., 2006 paper)
32      Both use the same CO2FLUX cost function, but different controls
33      Gradient checks look good, but some recomp. could still be traightened out
34      Should add xx_dic control variable to test at some point
35    o model/src:
36      add run-time parameters to check and/or mask initial Temp & Salt
37    o pkg/ptracers:
38      apply zonal filter (if used) to all passive tracers
39    
40    checkpoint61w
41    o adjoint:
42      * update and finish work on adjoint of dic package (G. Forget)
43      * start adjoint of offline package
44      * bug fix for cube-sphere TLM code (active_file_g.F)
45    o tutorial_global_oce_optim:
46      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
47      and add SIZE.h_mpi for MPI testing
48    o pkg autodiff
49     - fix bug in autodiff_restore
50     - make genmake2 remove comments and empty lines from ad_input_code.f in
51       order to reduce file size (new script file remove_comments_sed)
52    o allows to specify vertical profile of vertical viscosity (viscArNr)
53    o pkg autodiff
54      autodiff_ini_model_io: comment out writing of grid information to netcdf
55      files, because at this time the grid fields are a bunch of zeros
56      (this is analogous to ini_mnc_vars.F)
57    o pkg seaice/autodiff:
58     left-over from removing the 3-time-level fields:
59     - small rearrangement of common blocks (SEAICE.h)
60     - fix field declaration in order to get meaningful output in
61       adseaice.*.nc (adcommon.h)
62    o pkg obcs:
63     - go through NH code only if nonHydrostatic=T
64     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
65     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
66       => Update output of experiment seaice_obcs
67     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
68     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
69     - fix restart for useOBCSprescribe + useEXF
70    o pkg ctrl
71     - make obcs as control parameter work also with useSingleCPUio
72     - replace a few sny and snx by Ny and Nx to be consistent with
73       ctrl_set_globfld_x/yz.F
74    o pkg seaice
75     - re-introduce global field frWtrAtm for the case of
76       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
77     - catch the case of an empty filename in seaice_cost_init_fixed.F
78    o pkg ecco:
79     - small bug fixes in the_main_loop
80      . fix order of monitor arguments
81      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
82      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
83        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
84     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
85       imbalance diagnostics for wmean_h/sflux = 0
86     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
87     - catch the case of empty filenames in ecco_cost_init_fixed.F
88       and ecco_readparms.F
89     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
90       to make this statement meaningfull in ecco_cost_weights.F
91    o pkg zonal_filt:
92      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
93      - when using rStar, filter uVel*hFacW instead of uVel
94       (tested without topography: fix a Pb of growing instability with NLFS)
95    o pkg/aim/thsice:
96     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
97      (works as SST restoring)
98    o pkg/thsice:
99     -add specific parameter for salt restoring in slab mixed-layer
100       (by default equal to the temperature restoring)
101    
102    checkpoint61v
103    o pkg/kpp:
104     -add double diffusive contributions as a hack, turned off by default
105      for now, and the code can be excluded with a CPP-flag
106      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
107     -add a verification experiments to "vermix" to test this code
108    o pkg/mom_common:
109      Move computation of length scales to mom_init_fixed.F (avoid recomputation
110      at each time-steps*levels).
111    o pkg/layers:
112      Created a new package for computing volume fluxes in temperature or
113      [not yet implemented] density layers, e.g. for calculating residual
114      overturning circulations.
115    o pkg/diagnostics:
116      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
117    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
118    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
119      To avoid mixing type (RS/RL) of input/output array argument,
120      replace single mixed-type array with a pair from each type (RS/RL).
121    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
122      is now implemented for all pkgs (previously only done for the main pickup)
123    
124    checkpoint61u
125    o pkg/obcs:
126      - change OB?eta from _RS to _RL and put them into a separate commen block
127      - add code to read OB?eta from a file via obcs_prescribe_read: the code
128        compiles and does not destroy any other experiments, the data is read
129        properly, but the code is not tested in actual applications
130    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
131      create a meaningful unit attribute for the time coordinate variable
132    o pkg/ebm: add plenty of missing "_d 0" ;
133       update results of experiment global_ocean_ebm (fwd + adjoint tests)
134      Notes: several pieces of code only works for (very) specific set up
135       (domain size, lat range, etc ...); should be documented & stop if one
136       of those assumptions is not meet.
137    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
138       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
139          and offline_exf_seaice (seaicetd + adjoint).
140    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
141       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
142        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
143    o few changes to pass when compiling with strick checking of arguments
144       across S/R (allow to find few bugs in S/R calls).
145    o pkg/seaice:
146     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
147       2d-fields, for slightly better performance
148    
149    checkpoint61t
150    o pkg/seaice:
151     - remove unused variables in seaice_evp
152     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
153    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
154       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
155       each processor opens a different file (a fix from Matt).
156    o cg2d:
157       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
158       this reduces number of EXCH calls by 2 when using exch2.
159       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
160       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
161    o pkg/thsice:
162       add code for Near Infra-Red albedo (from Jeff)
163       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
164    o ini_model_io:
165       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
166       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
167       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
168    
169    checkpoint61s
170    o pkg/exch2 (exch2_rxN_cube*):
171       remove last BARRIER (no need to synchronise after getting data from shared
172       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
173    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
174      and generate new output (for the 2 tests) using default rotationPeriod.
175    o pkg/exch2:
176      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
177        (was already the case with AUTODIFF_EXCH2 defined)
178      - add bj in exch2 arrays and S/R.
179      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
180        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
181    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
182      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
183        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
184      - verification experiment natl_box.longstep
185    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
186      allow different versions of ifort (8 or 9) and different versions
187       of mpi (mpich or mpich2) to be used with the same optfile.
188      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
189       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
190    o pkg/seaice:
191      fix previous modif (3-level field removed) for old-pickup reading
192    
193    checkpoint61r
194    o pkg/seaice:
195     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
196      1. introduce fields for time step (N-1)
197      2. do not use levels 2 and 3 anymore (but keep them)
198      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
199         includes changes to pkg/thsice/thsice_get_velocity.F,
200         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
201         pkg/obcs/obcs_apply_uvice.F.
202     - completely remove code for leap-frog time stepping for second order
203       advection
204     - adjusted adjoint accordingly;
205       gradient checks have improved by an order of magnitude!
206    
207    checkpoint61q
208    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
209     - the boundary conditions along open boundaries are unclear, because the
210       associated masks are set to zero and are thus treated as closed when
211       applying the slip-boundary conditions.
212     - move initialisation of grid variables from seaice_init_varia to _fixed
213    o adding doc/diags_changes.txt
214    o model/src:
215      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
216       to avoid "_diags" naming if no relation to pkg/diagnostics.
217      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
218       file and only call PLOT_FIELD_XYZ if debugMode=T.
219      remove few PLOT_FIELD_XY calls outside initialisation.
220      remove few unnecessary BARRIER.
221    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
222      of salt_plume package in Southern Ocean
223    o pkg/thsice:
224     - fix hOceMxL in overlap (needed for sea-ice advection);
225       update output of experiment global_ocean.cs32x15.icedyn.
226    o pkg/seaice:
227     - make the (placeholder-)tracer IceAge a little more meaningful
228      by avoiding ridging of age due to convergent ice flow
229     - add diagnostics for surface temperature, atmospheric and oceanic
230       heat flux, and atmospheric and oceanic ice growth
231    
232    checkpoint61p
233    o eesupp (global_max & global_sum):
234     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
235     - remove starting & endding barrier (no longer needed)
236    o pkg/mdsio, writelocal:
237       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
238       (remove the STOP): uses shared buffer IO to store data from all threads
239       and then let master-thread write nThreads tiles.
240    o pkg/mdsio (read/write field):
241     - tiled IO done in 1 piece (all levels at a time);
242     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
243     - multi-threaded: allow to read/write local (non-shared) array
244       (was already working with singleCpuIO ; now works also without);
245       => no longer needs barrier call after reading a file (added inside
246       mds_read/write field).
247     - move barrier calls outside gather/scatter_2d to mds_read/write_field
248    o pkg/obcs/exf
249      - exf_getffieldrec.F: add a few ". _d 0" and
250                            add code to catch the case fldperiod = 0.  
251      - obcs_precribe_read.F: change if statements so that they match
252                              the variable type (_RL)
253      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
254        exf_iprec) as part of namelist EXF_NML_01
255    o pkg/mdsio:
256      - read/write tiled (local) files: read/write 1-level tile chunk at a time
257        (instead of segment of length sNx); expected to speed up tiled IO.
258    o pkg/exch2:
259      - take buffer copy from/to array out of S/R exch2_send/recv into new
260        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
261        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
262      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
263      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
264        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
265        including Topology header file (and common blocks).
266      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
267        remove 2nd exch call in exch2_s3d_rx (no longer needed).
268      - document S/R arg. list (+ update some comments)
269    o pkg/seaice:
270      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
271        temperature and humidity over sea ice based on climatological values.
272      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
273        of LSR (this change is expected to change the results slightly because now
274        it uses slightly difference moduli from the second last LSR solution, but
275        that is more consistent with the stress computations; this part of the code
276        is not tested in the verification experiments)
277      - fix diagnostics for flux of ice in case of B-grid
278      - turn strain rates eij and press into global fields within global
279        common block in SEAICE.h for more straighforward diagnostics
280      - fix diagnostics for principal stress components, press, zeta, eta
281        to give something meaning full
282    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
283      new output (all 4 tests) using default rotationPeriod.
284    o pkg KPP:
285      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
286      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
287        and normal grid from 1 to Nr)
288    o Fix computations of L4rdt in mom_calc_visc.F
289    o eesupp:
290      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
291      should be called before a "stop" if we know that all process are going
292      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
293    
294    checkpoint61o
295    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
296    o model/src/ini_curvilinear_grid.F:
297       compute angleSin/CosC when they are not read from a file
298    o pkg/seaice:
299       add pseudo time stepping for LSOR
300    o pkg/exch2:
301       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
302    o pkg/seaice:
303       Adding separate sea ice albedo, drag coefficients, and HO in Southern
304       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
305    o SingleCpuIO:
306       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
307    o pkg/seaice:
308       put exchanged variable in (local) common block for MPI+Multi-Threads
309       to work (necessary with exch1, and for now with exch2 too).
310    o verification: to get more experiments tested with mpi, mth and mpi+mth,
311      change tiling of:
312       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
313       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
314      update output of exp:
315       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
316       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
317      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
318                       (note: output.txt generated on faulks using only 1 tile)
319    o eesupp & mdsio (SingleCpuIO):
320     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
321       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
322       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
323     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
324     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
325       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
326    o pkg/exch2:
327     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
328       read parameter file "data.exch2" if it exists; otherwise try default regular
329       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
330     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
331       with new code (not to be used, just as a backup solution).
332     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
333       in utils/exch2/input.
334    
335    checkpoint61n
336    o eesupp & mdsio (SingleCpuIO):
337      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
338        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
339        receive real*4 array (instead of real*8) to read/write 32.bit files.
340        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
341         and remove new mapping S/R)
342    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
343      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
344        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
345        when using exch2. Add S/R to map global io-buffer to global model array.
346      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
347    
348    checkpoint61m
349    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
350      and add 3 other S/R for other types (R4,R8,RS).
351      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
352    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
353     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
354     - reduce number of macro definitions (keep only those which are used);
355       can always call directly the corrresponding S/R if needed.
356     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
357       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
358     Fixed wrong type of arg in:
359       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
360       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
361     To fix: global_sum of var in common block is wrong (multi-threaded) in:
362       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
363     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
364    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
365      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
366    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
367    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
368      edges are closed (zero depth); might happen with "blank tiles";
369      for now, disabled if using OBCS.
370    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
371      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
372    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
373      to reduce length of 1.D array print in STDOUT.
374    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
375      + use 48 tiles (16x8): this will allow to test "blank tiles".
376    o start to test MPI + multi-threaded (change testreport to skip tests
377      where number of tiles do not match).
378    o genmake2: add option "-omp" to turn on Open-MP ;
379      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
380    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
381      and keep the original tile numbering. Note: compatible with old
382      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
383    
384    checkpoint61l
385    o Overlaps had been forgotten in calculating ijk keys : fixed
386    o fix cyrus makedepend for gcc 4.4
387    o experiment fizhi-cs-aqualev20:
388      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
389      and generate new output. Note: new output is much closer to the old
390      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
391      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
392    o pkg/fizhi:
393     - change to avoid indices going deliberately over array-bounds
394     - remove unnecessary MPI stuff
395     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
396     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
397       does not go over array-bounds and therefore returns reliable output.
398     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
399       this S/R has 4 output arguments, which are used inside "get_alarm";
400       when it is called with the same variable "ndum" in place of several
401       output arguments, this produces weird side effect inside "get_alarm"
402      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
403       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
404       address) and produces error.
405    o tools/gemake2: (March 27-29 2009)
406      with option "-mpi": link *_mpi files from "MODS" dir (this is what
407      testreport does).
408    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
409    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
410       update lab_sea.lsr & lab_sea.salt_plume results
411    o pkg/seaice:
412      Major overhaul of the LSOR solver: change discretization from original
413      finite differences to finite volume. The old routine is still in the
414      file seaice_lsr.F and can be turned on with the CPP-flag
415      SEAICE_OLD_AND_BAD_DISCRETIZATION
416      Along with this change, the discretization of the strain rates is changed.
417      The same flag turns on the old discretization in seaice_calc_strainrates.F
418      All verification experiments with seaice are affected (except for
419      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
420      results by setting the above flag.
421      Further changes involve changes in defaults:
422      - ALLOW_FLOODING is defined and turned on by default
423      - SEAICEadvSnow = .true. is now the default
424      - SEAICEadvSalt = .true. is now the default
425      - SEAICEadvAge  = .true. is now the default
426      - SEAICE_clipVelocities  = .false. is now the default
427                                         (as per J. Zhang's recommendation)
428      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
429        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
430      - seaice_growth: replace computation of UG by a simple copy from wspeed
431    
432    checkpoint61k
433    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
434      seaice_lsr: fixed a few metric terms,
435                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
436                  add more debugging diagnostics
437      seaice_evp: removed superfluous many metric terms of FV discretization
438                  of stress divergence
439                  affects lab_sea, lab_sea.hb87
440      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
441                  of stress divergence for non-evp solver
442                  (this part is not tested anywhere)
443      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
444                  they were effectively only half slip
445                  affects lab_sea.hb87
446      updated all relevant verification experiments (except lab_sea//output_adm.txt
447        which was left over, but fails at level 7 & 6)
448    
449    checkpoint61j
450    o pkg/seaice: turn a few hard wired parameters into run time parameters
451    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
452      time in seconds as promised by the usints in seaice_monitor and exf_monitor
453    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
454      that are not cubed-sphere grids
455    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
456    o pkg/ctrl:
457      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
458    o non-hydrostatic (calc_gw.F):
459      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
460      update output of exp. global_ocean.cs32x15.viscA4
461    o remove backward compatibility for thetaMin,phiMin
462      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
463    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
464      interpolated wind field not only for curvilineargrid=.true., but also
465      for a rotated grid (rotateGrid=.true.)
466    o pkg/exf: add capability to bypass interpolation for runoff
467      by setting yet another CPP-flag
468    o eesupp/src, B-grid exchange:
469      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
470    o autodiff
471      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
472      allows to switch to single-prec common blocks;
473      corresponding switch occurs in tamc.h, integer isbyte
474      TAF store directivs "byte" and "kind" seem equivalent;
475      Most tamc.h have been updated correspondingly.
476    
477    checkpoint61i
478    o autodiff:
479      fix autodiff_sore/_restore indices for obcs
480      (spotted by I. Hoteit, M. Mazloff)
481    o pkg/autodiff, pkg/ctrl:
482      Add flag to reduce all tapelev I/O to single-prec.
483      In data.ctrl set
484        doSinglePrecTapelev = .TRUE.
485    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
486      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
487    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
488      real fresh water flux (not yet)
489    o pkg/mdsio & rw:
490     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
491     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
492    o pkg/flt:
493     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
494       init_fixed & ini_varia.
495     - clean-up & simplify linear interpolation S/R:
496       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
497     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
498     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
499     - add vert. coordinate & horiz. indices to output files.
500     - change vertical position in initial condition, from index to depth [m].
501     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
502       (easier to get to a curvilinear grid) ; delX,delY no longer used.
503    o pkg/ggl90: a few modifications:
504     - fix bottom boundary condition, and interpolation of KappaE
505       near top and bottom
506     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
507     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
508     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
509    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
510      (maintain temporary backward compatibility, until next checkpoint)
511    
512    checkpoint61h
513    o pkg/diagnostics with "periodic averaging diagnostics":
514      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
515    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
516    o pkg/obcs: fix loop ranges for balancing code
517    o pkg/flt:
518     - improve criteria for finding which tile owns a float.
519     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
520    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
521      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
522      with ocean biogeo)
523    o pkg/flt:
524     - do some cleaning and fix the restart ;
525     - add output.txt in flt_example/results to get this pkg tested.
526    o genmake2: add an EXTENDED_SRC option and flag.
527       for now, cannot be turned on on command line (only through genmake_local)
528    o pkg/mdsio: read/write vector:
529     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
530     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
531       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
532     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
533      (drop to 4 digits matching for grad). But this test does not look very
534      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
535    
536    checkpoint61g
537    o pkg/flt:
538      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
539       + make OPTIONS file more standard.
540      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
541      - fix _BYTESWAPIO CPP-Flag
542      - standard reading of file-parameter "data.flt"
543      - fix argument list of S/R FLT_RESTART
544      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
545    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
546    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
547      a still unfixed compiler/optimization bug
548    
549    checkpoint61f
550    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
551      update results of global_ocean.cs32x15.icedyn test.
552    o move getcon.F from model/src to pkg/fizhi.
553    o pkg/exf: add parameter for extrapolation of temp up to the surface
554       and option to prevent negative evap (in bulk_largeyeager04 only).
555    o Prather Advection scheme: fix tracer conservation for divergent flow
556      (e.g., when using NonLin Free-Surface).
557    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
558    o gmredi (Visbeck-variable-K):
559     - add more parameters to Visbeck-variable-K.
560     - use a 5 points average for dSigmaR in Visbeck-K calculation
561       (more "homogenous": same stencil and same weights as in dSigmaH)
562     - update output of ideal_2D_oce experiment.
563    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
564      (#undef REAL4_IS_SLOW)
565     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
566       coordinate variable
567     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
568       (surface forcing fields), removes some of the functionality
569     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
570     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
571       probably not all: copy _RS surface flux fields to RL field before
572       calling DIAGNOSTICS_FILL
573     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
574       real*4 (CALL EXCH_*_RS) versions.
575     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
576       (generate new output).
577    
578    checkpoint61e
579    o gmredi (Visbeck-variable-K):
580      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
581      - change computation of Visbeck-K where Slope > Smax :        
582        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
583        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
584    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
585      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
586    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
587    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
588      does not become too large (to avoid precision problems in implicit-diffusion
589      solver); update ideal_2D_oce output.
590    o pkg ggl90:
591      - in ggl90_cal.F: compute only one set of visc/diff, used to
592        step forward TKE/T/S/momentum
593      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
594        have Prandlt =1)
595    o gmredi (fm07):
596      - add lower limit on Transition layer thickness + lower limit on 1/lambda
597      - allow to set few more params from data.gmredi
598    o pkg ggl90:
599          - add missing sqrt(2) factor in computation of mixing length
600            scale in ggl90_calc.F
601            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
602    
603    checkpoint61d
604    o adjoint modifs
605      - adapt to new field rhoInSitu
606      - allow to revert from StoreDynVars2D, StoreDynVars3D
607        to individual fields
608        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
609    o store 3-D (in-situ) density in commom block (DYNVARS.h)
610     - save 1 rho computation.
611     - no longer modify T & S inland when using down_slope pkg.
612    o gad_som : allow to switch to SOM advection for T & S without corresponding
613      pickup files (using new S/R: MDS_CHECK4FILE).
614    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
615      (for useSingleCpuIO to work in multi-threaded)
616    o pkg/shelfice:
617     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
618       with SHELFICEtopoFile in data.shelfice
619     - move code for reading ice shelf topography and modifying hFacC into separate
620       subroutines of the shelfice package
621     - separate initialisation of "fixed" and "variable" variables
622     - kTopC is not (yet) replaced by kSurfC, although this is possible
623    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
624    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
625      and rename:
626      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
627      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
628    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
629    
630    checkpoint61c
631    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
632      to add mass source/sink of fluid in the interior (3-D generalisation
633      of oceanic real-fresh water flux).
634    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
635    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
636    o new pkg: down_slope
637      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
638      - presently, modify T & S inland (dwnslp_calc_rho.F).
639        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
640      - implementation for ocean in P-coords not tested.
641      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
642    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
643      (to facilitate conversion of oceanic pkg to p-coordinate).
644    o change FIND_RHO to FIND_RHO_2D :
645      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
646    o new pkg: cheapaml
647    
648    checkpoint61b
649    o exch2:
650      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
651      - no longer depend on the order sequence (N,S,E,W).
652      - 3rd exchange no longer needed (tested with 24 tiles).
653      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
654      - exch_UV_A-grid readily available (but not yet tested).
655      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
656      (both are no longer needed) in exch_uv: no effect in forward run; but
657       get truncation error differences with adjoint exch.
658    o exch2:
659     - change index-bounds storage (moved from target to local tile,
660       more intuitive this way) ; rename/remove some variables.
661     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
662    
663    checkpoint61a
664    o exch2/matlab-topology-generator:
665      fix bug in index bounds for N-S internal exchange (hard to tell if this
666      had any effect on the solution).
667    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
668      is exceeded
669    o testreport: modify syntax of awk, so that it works also with
670      awk, and not only with nawk and gawk
671    
672    checkpoint61
673    o autodiff
674      Change default for TAF usage by removing argument '-nonew_arg'
675      This changes TAF subroutine argument list (ordering of active var.)
676      Omission of this flag leads to incompatibility w.r.t. TAMC
677      To restore TAMC-compatibility, need following modifs:
678      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
679      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
680      Tested TAF version is 1.9.22
681      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
682    
683    checkpoint60
684    --->>> This is the last checkpoint for which generating the adjoint
685    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
686    --->>> by default.
687    --->>> Future checkpoints will ommit this flag by default.
688    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
689    o pkg/grdchk: Add gradient check to etan0 perturbations.
690    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
691    o pkg/autodiff: more flexibility in zeroadj.
692      model/src: modifying do_oceanic_phys.F accordingly.
693    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
694    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
695      special setup of gmredi for which the adjoint is stable
696      enough for parameter optimization.
697    o bridging the gap between eddy stress and GM.
698      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
699          along with a change in CPP option (now ALLOW_EDDYPSI).
700      -> when using GM w/ GM_AdvForm:
701          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
702          is applied either in the tracer Eq. or in momentum Eq.
703          depending on data.gmredi (intro. GM_InMomAsStress).
704      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
705      The key modifications are in model/src/taueddy_external_forcing.F
706      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
707    
708    checkpoint59r
709    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
710      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
711      fix option to read coriolis(@ cell-corner) from files with CS-grid.
712    o pkg/mnc: add some attributes to standard 1D-coordinate variables
713    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
714      mass points, when using mnc for output
715      - add runtime parameter (missing_value, missing_value_int) to override
716        default (which is the value of getcon('UNDEF'))
717    o pkg/mnc: prepare mnc for the actual use of missing values with the
718      diagnostics package: small fix in mnc_cw_readwrite.template and more
719      initialisation of never used fields
720      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
721      versions
722    o pkg/thsice/thsice_ini_vars.F added default initial values so that
723      thermodynamics sea ice solver does not blow up when some initial fields
724      are missing.
725    o move from external_forcing_surf.F to ini_forcing.F
726      the p-coord. hack consisting in using pLoad to set phi0surf ;
727      update output of tutorial_global_oce_in_p (affected @ truncation level).
728    o Freshen up a bit hs94.1x64x5, notably:
729      remove rotationPeriod and tRef=5*0. (adjoint only), and add
730      exactConserv=.TRUE.
731    o pkg/generic_advdiff:
732      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
733      applies to files where Temperature & Salinity 2nd Order moments are used.
734    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
735      this uses a dynamically allocated internal state data structure
736      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
737      and requires a fortran 90 compiler
738    
739    checkpoint59q
740    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
741       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
742    o Refresh tutorial_global_oce_biogeo, notably:
743      - change bathymetry (put back seamounts in ACC, use hFacs)
744      - change EOS (POLY3 --> JMD95Z)
745      - use Bryan-Lewis vertical diffusivity
746      - use multidimensional advection
747      - remove old virtual virtual in dic pkg, now done through ptracer pkg
748      - change a couple of parameters in dic pkg
749    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
750    o pkg/obcs: change default to OBCSfixTopo = .true.,
751      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
752      - replace "debugMode" with "debugLevel .GE. debLevB"
753    o implementation of TAF directives for gchem,cfc,dic
754    o remove "exp5" (replaced by tutorial_deep_convection).
755    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
756      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
757      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
758      --> changes results in exp4, seaice_obcs
759    o tutorial_deep_convection :
760      update the set-up and increase resolution and domain size ; start
761      from pseudo initial conditions = output at t=120mn in order to see
762      something happening when running testreport.
763    o pkg/seaice: add os7mp as an advection scheme
764                  add check for advection schemes
765                  add a flag for restoring T and S underneath sea ice
766    o pkg/my82: add netcdf-support and diagnostics
767    o thsice pkg:
768      - Now hsMax limits snow height by turning it into ice following
769        flooding scheme (and now conserving energy)
770      - Slight rewriting of the formula in thsice_calc_thick.F
771      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
772      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
773    
774    checkpoint59p
775    o gchem / dic / cfc :
776      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
777      - add new parameter files: "data.dic" & "data.cfc" ;
778      - various re-arrangement in initialisation & header file ;
779      - fix tutorial_global_oce_biogeo for multi-threaded test.
780    o pkg/dic: test for "pickup_dic" file when restarting ;
781      if no pickup-file, can restart with a re-initialised pH (same as it did
782      before) providing pickupStrictlyMatch is set to False.
783    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
784      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
785    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
786      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
787    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
788     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
789       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
790    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
791       scheme to use for vorticty-term ;
792     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
793       (with default selectVortScheme, return to original discretisation)
794     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
795    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
796    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
797      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
798      also fix diagnostics VISCAHW & VISCA4W.
799    
800    checkpoint59o
801    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
802    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
803      move a few statemens out the main loop into separate loops
804    o pkg/shelfice:
805      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
806        (kg/m^2/s), does not break tests, because in verification/isomip,
807        rhoConstFresh=rhoConst (by accident)
808      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
809      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
810        new file model/src/seawater.F, so that they are available for all pkgs.
811      - convert potential temperature into in-situ temperature. This changes the
812        isomip tests => update tests
813    o add a flag writePickupAtEnd (default=true) to be able to suppress
814      writing a pickup at the last timestep
815    o tools/mpack-1.6 :
816      - disable automake (not working) and autoconf (not needed).
817      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
818        also cleaner with much less compilation warnings.
819    o pkg/profiles:
820      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
821      (for "less than 32 characters name" compiler requirement)
822    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
823      conditions that have a different sampling frequency than S/T/U/V obcs
824    o pkg/diagnostics (stats-diags):
825      - fix global Min/Max in case 1 processor get only empty tiles
826    o genmake2: replace (4 times)
827         make genmake_tc_1.o >> genmake_warnings 2>&1
828      with
829         COMM="$CC $CFLAGS -c genmake_tc_1.c"
830         echo $COMM >> genmake_warnings
831         $COMM >> genmake_warnings 2>&1
832      to make genmake2 always see the value of CC as specified in the optfile.
833    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
834      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
835      - modify verification advect_cs test to test SOM-advection on CS-grid.
836    o pkg/ctrl:
837      - Rewrite of ctrl_map_ini_ecco.F,
838        introducing a generic routine (ctrl_map_ini_gen.F).
839      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
840    
841    checkpoint59n
842    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
843      number in dedicate array "hdiag":
844      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
845        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
846      - many small changes (integer format) for large number of diagnostics
847      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
848        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
849    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
850      usingSphericalGrid, this allows to define the rotated grid coordinates
851      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
852      geographical coordinates according to the inverse of the rotation defined
853      by the Euler angles, so that Coriolis parameter and online-interpolation by
854      exf works with the geographical coordinates on XC/YC/XG/YG.
855      Naturally, this feature does not work with all packages, so some
856      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
857      profiles), because there the coordinates are assumed to be regular
858      spherical grid coordinates.
859    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
860      - introduce isopycnal diffusion coefficient control.
861    o tools/adjoint_options:
862      - additional control vector components.
863    o pkg/mnc: have mnc create marginally meaning full coordinate variables
864      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
865    o pkg/mypackage:
866      - add example of read/write pickup for state-var ;
867      - add entry points to the main code for state-vars diags & write-pickup.
868    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
869      transitions for useExfYearlyFields
870      - add new subroutine that determines the file to read from for
871        use*YearlyFields = .TRUE. and .FALSE.
872      - add a verification experiment to global_with_exf that tests
873        useExfYearlyFields with USE_EXF_INTERPOLATION defined
874    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
875      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
876      subroutines (which could be generated from a template, because they are
877      almost identical), for now they are included in obcs_prescribe_read.F for
878      simplicity
879    o pkg/exf:
880      - add a little more diagnostic to exf_interp_read (in analogy to
881        mds_read_field, can be turned off with debugLevel < debugLevA=1)
882      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
883        ugly but fast by unrolling short inner loops, inserting a unroll=8
884        directive in routine lagran, and splitting a loop and making do while the
885        outermost loop (the latter requires the intoduction of index arrays)
886    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
887    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
888      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
889    o verification/seaice_obcs: updated for restart test and latest options
890    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
891      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
892      for now this is only available for the C-grid code and also within
893      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
894    
895    checkpoint59m
896    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
897      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
898    o gad_som : fix flux output (& diagnostics) to have same units as other  
899      advection scheme fluxes (was previously multiplied by deltaT).  
900    o added verification/seaice_obcs both to test seaice open boundaries
901      and to provide an example matlab scrpt for generating them
902    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
903    o pkg/salt_plume: clean up salt_plume_frac.F to
904      remove redundancy in PlumeMethod 1 and 4
905    o pkg/kpp: added saltplume diagnostics
906    o pkg/obcs and pkg/seaice:
907      - do not set uice and vice to zero when OB*icefile are unspecified
908      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
909      - moved seaice tracer obcs after call to seaice_growth
910    o pkg/salt_plume: added various options for salt plume depth
911      criterion and for vertical distribution of the salt
912    
913    checkpoint59l
914    o pkg/ptracers: new version of ptracers pickup:
915      read meta file and write only fields which are needed to restart.
916      ( same logic as main pickup file ; also using pickupStrictlyMatch )
917    o pkg/seaice:
918      - add timescale for melting due to warm mixed layer as a means of
919        setting SEAICE_availHeatFrac more conveniently
920      - add a CPP-flag/runtime parameter check for flooding algorithm
921      - reformulated availHeat in seaice_growth.F to be independent of AREA
922    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
923      unit changes
924    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
925    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
926      SX vector computer.
927    o pkg/seaice:
928      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
929        seaice forcing fields can now be read only through pkg/exf
930      - removed some unused halos
931    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
932    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
933      or U/VICE from U/VWIND before computing U/VSTRESS
934    
935    checkpoint59k
936    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
937      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
938    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
939      all experiments pass when compile with un-initialised var. checking option.
940    o added pkg/salt_plume
941    o script to test restart (for now, in MITgcm_contrib/jmc_script)
942    o pkg/seaice: new read/write pickup version.
943      read meta file and write only fields which are needed to restart.
944      ( same logic as main pickup file ; also using pickupStrictlyMatch )
945    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
946    o lab_sea.hb87: modify the domain & update output.hb87.txt :
947      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
948      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
949      process. Fixed here by closing the domain at the Northern boundary.
950    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
951    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
952      a set of consecutive levels in/from a 3-D array.
953    o pkg/ptracers:
954      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
955      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
956    
957    checkpoint59j
958    o in pkgs: dic, obcs, offline, rbcs:
959      standard way to compute coeff. for time interpolation between 2 time reccords
960      which retains full precision (& make results less dependent on compiler).
961      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
962    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
963      packages instead of reading ice cover and wind speed separately
964    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
965     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
966      to allow to compile customized code before the update)
967    o cleaning-up:
968      - fix CPP instruction syntax in pkg/obcs
969      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
970        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
971      - fix some threads issue in IO parts.
972    o pkg/dic:
973      - add tons of "_d 0" (--> much better testreports !)
974       and then update outputs of tutorial_global_oce_biogeo
975    o pkg/mom_fluxform:
976      add a special version of momentum advection intended to conserve momentum
977      next to a bathymetry step or a coastline edge. (default = off = #undef)
978    o new read/write pickup version:
979      - for now, only implemented for main (mdsio) pickup file.
980      - write out only what is needed to restart; merge pickup_nh , pickup_ph
981        and main pickup together.
982      - read meta file; read only what is needed to restart; stop if a field
983        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
984        if it make sense (even if the restart is not perfect).
985      - if no meta file, assume that pickup to read corresponds exactly to
986        a pickup that would currently be written.
987      - read pickup written in the old format (until checkpoint59i) if it
988        recognizes an old meta file (no field-list).
989      - add a meta file in exp. which starts from a pickup: 2 cases:
990        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
991         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
992        b) a meta file describing the content of the associated pickup file
993         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
994    o pkg/mdsio & pkg/rw:
995      - new routine to read a meta file ; new set of routine to read
996        Multiple-fields file (with meta file).
997    o added open boundary conditions capability for seaice
998        HSNOW, HSALT, UICE, and VICE
999    
1000    checkpoint59i
1001    o adjoint:
1002      * fix multiDimAdvection adjoint
1003        (partial recomputation problem by TAF for fVerT(:,:,kDown)
1004        and comlev1 size definition (maxpass vs. max. number of tracers)
1005      * verification/global_ocean.90x45x15 adjoint now tests
1006        NLFS and multiDimAdvection using DST3 (=30)
1007      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
1008    o pkg/kpp: add "_d 0" to real constant (if missing);
1009      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
1010      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
1011    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
1012      for internal parameters related to restart process (formerly from PARAMS.h)
1013      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
1014    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
1015      as argument. (only atm2d & obcs write_pickup have not yet been updated)
1016    o pkg/monitor:
1017      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
1018      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
1019      - account for deep Atmosphere factor and density factor (anelastic)
1020    o added open boundary conditions capability for seaice HEFF and AREA
1021    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
1022      thermodynamics
1023      - requires a little reorganization, which affects the testreport results
1024        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
1025        so that now the conservative form is tested
1026      - add a few comments
1027    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
1028    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
1029    o add new diagnostics to seaice: advective, diffusive fluxes (only for
1030      multidim-advection, for scheme 2 they are not filled) and transports,
1031      thermodynamic growth rates
1032    o change units of EmPmR (inside the code, + within coupling interface)
1033      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
1034      Affects results @ truncation level (cg2d match) and update output of
1035       experiments: lab_sea(6), global_ocean.90x40x15(10),
1036      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
1037      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1038      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1039      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1040    
1041    checkpoint59h
1042    o pkg/exf:
1043      - improve vectorization by moving if-statement out of loops in
1044        exf_mapfields, exf_radiation
1045      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1046    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1047    o testreport:
1048      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1049        monitor & update offline_exf_seaice exp. output.
1050      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1051    o pkg/seaice:
1052      - bug fix in the evp solver: boundary conditions were affected be
1053        masking of zMax/zMin (changes results)
1054      - minor bug fix in boundary conditions in seaice_calc_strainrates
1055        (changes results for no_slip)
1056      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1057      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1058      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1059        stress formulation and no-slip boundary conditions
1060    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1061      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1062    o pkg/seaice: a first HSALT time stepping equation has been checked in
1063    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1064      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1065      without requiring DO-IF statements
1066    o pkg/thsice:
1067      use continuous power-law function for partition of energy between lateral
1068      melting/freezing and thinning/thickening ; old code using step function
1069      still available with #undef THSICE_FRACEN_POWERLAW
1070      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1071    o testreport: change AD testing : check against results/output_adm.txt
1072      using same scripts as for forward test.
1073    
1074    checkpoint59g
1075    o adjoint testing: in preparation for changing testreport:
1076      - output format: cost and grad written on separated lines
1077      - ad output results in directory "results" (instead of "results_ad")
1078    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1079    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1080    o pkg/ecco: allow user defined cost function contributions
1081    o testreport:
1082      Allow to choose (per experiment) the list of tested output variables
1083       and the main variable (used to issue a pass/FAIL ) ;
1084      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1085      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1086      Also modify printing of summary:
1087       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1088       b) echo the list of tested variables in the individual summary.txt of
1089          each experiment.
1090    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1091      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1092      (but still depend on the tile decompostion of the domain).
1093    o pkg/seaice: change a discretization detail to make the B-grid code
1094      "more symmetric". This change is likely to remove all "ridges/leads" that
1095      where quasi-aligned with the grid in B-grid solutions. It may also be
1096      the solution to the stress coupling issues with the B-grid.
1097    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1098      remove .cvsignore from input dir. (since testreport no longer run here).
1099    o pkg/thsice:
1100     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1101     - fix reshaping of sea-ice just after advection:
1102       melt all the ice only if ice-volume is too small.
1103     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1104       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1105     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1106    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1107      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1108    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1109      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1110      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1111      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1112      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1113      -> update output.txt
1114    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1115     this affects truncation error: -> update output.txt of exp:
1116      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1117      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1118    
1119    checkpoint59f
1120    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1121    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1122      a bounded range (in forward mode)
1123    o pkg/ecco, ctrl, autodiff and mom_common:
1124     internal parameter controls, completements of implementations
1125    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1126    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1127      (not seem any difference in testing results).
1128    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1129       at face corners.
1130    o pkg/generic_advdiff:
1131     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1132      loop range indices for computing vertical advection tendency
1133      and do the calculation in the interior only (no overlap) ;
1134      for now, only implemented for SOM advection (to save CPU time).
1135     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1136    o exch2 adjoint
1137      First set of changes:
1138      - add exch2 hand-written adjoint templates
1139      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1140        This will require cleanup in pkg/autodiff/*.F
1141        (changed routines currently kept separate in verif. code/)
1142      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1143        that used to hide exch2 or cubed-sphere specific code
1144        (commented via 'cph-exch2')
1145    o pkg/seaice
1146      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1147    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1148       output of global_ocean.cs32x15.thsice .
1149    
1150    checkpoint59e
1151    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1152      for B-grid vector (not yet tested) and C-grid vector (<- only used
1153      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1154    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1155      (#ifdef ALLOW_SALT_PLUME)
1156    o gather_2d/scatter_2d: removed halo regions
1157    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1158      scheme and the corresponding test case (under front_relax dir). For now,
1159      only available with Skew-flux form and not yet tested in realistic set-up.
1160      adjoint: store directives updated, but gradient checks deteriorated,
1161      so maybe GM/Redi adjoint is now broken.
1162    o seaice adjoint
1163      * add AREA, HEFF, HSNOW as control variable
1164        (should not change lab_sea results)
1165      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1166    o pkg/seaice:
1167      * added computation of saltFlux in seaice_growth;
1168        For time being, sea ice salinity is assumed constant
1169        contribution of snow flooding to freshening of sea ice is neglected.
1170        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1171        defaults to 0.0 in order to maintain backward compatibility.
1172        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1173      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1174      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1175        heat content used to melt or grow ice
1176      * commented out cap of HICE: it helps keep ice thinner
1177      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1178      * applied OBCS T/S mask to HEFFM sea ice mask
1179    
1180    checkpoint59d
1181    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1182     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1183     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1184    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1185     and change default value of parameter "GM_Small_Number";
1186     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1187       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1188       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1189    o pkg/ecco: cost function when applying pkg/smooth to controls
1190    o pkg/ctrl: add forcingPrecond run time parameter
1191    o pkg/seaice:
1192     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1193     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1194       changes verification/lab_sea
1195     - rearrange implicit part of u-equation in LSR solver to make it easier to
1196       read, understand, and debug. This causes changes at the truncation level.
1197     - fix (serious) bug in the boundary conditions (sign error in the implicit
1198       part) of the LSR solver. Changes all LSR results.
1199     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1200       is initilized with small values - does not change lab_sea results.
1201     - added HsnowFile initialization capability
1202    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1203     initialization of pkg/smooth and application to control vector
1204    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1205    o dependencies: pkg/profiles requires pkg/cal
1206    o pkg/profiles:
1207     - added option ALLOW_PROFILES_GENERICGRID
1208         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1209         that interpolation information (grid points and coefficients) is provided
1210         within the netcdf input files.
1211         -> sample matlab scripts can be found in MITgcm_contrib/gael
1212         that allow you to prepare netcdf input files.
1213     - also modified: cleaner include statements, cleaner error print statements,
1214       cleaner stops when error, and more tests of the netcdf input files consistency.
1215    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1216    o pkg/seaice:
1217     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1218       requires a new routine: seaice_diagnostics_fill.F
1219     - make sure that seaice does not move if not forced (pressure replacement
1220       method, Hibler and Ip, 1995), changes results
1221     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1222     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1223       It is turned off by default (=-1.), because it changes the results.
1224     - make it possible to read AREA from a file, too.
1225    
1226    checkpoint59c
1227    o add S/R and diagnostics for oceanic mixed-layer depth
1228    o move GMRedi call after all vertical mixing schemes (including KPP)
1229    o pkg/thsice:
1230     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1231      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1232    o pkg/obcs:
1233     - bug fix for balance code
1234    o pkg/seaice:
1235      - allow values of SEAICE_elasticParm > 1
1236      - add new parameter SEAICE_evpTauRelax as an alternative
1237        to SEAICE_elasticParm
1238      - make lsr boundary conditions free slip (by default), changes result
1239      - add code for no slip boundary conditions for lsr
1240      - set minimum of zeta to zero (and not 4e8) (changes results)
1241      - add a cap on AREA after advecting AREA if seaice_growth is not called
1242    o change calculation of Visbeck K:
1243      - no longer depend on tapering scheme; instead, compute slope (limited
1244        by GM_maxSlope). this is equivalent to what was comuted before with
1245        clipping or linear tappering.
1246      - fix vertical averaging (wrong by 1/2 level)
1247      - leave the old version (but will not be maintained) within
1248        #ifdef OLD_VISBECK_CALC / #endif
1249      - update output of exp. ideal_2D_oce
1250    o change error catch in calc_r_star to improve vectorization
1251    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1252      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1253    o adjoint:
1254      Re-organized adjoint checkpointing according to Matt Mazloff
1255      (but with modifs/completions/cleanups)
1256      Storing is now bundled into large arrays to optimized I/O
1257      (and second step in cleanup of the_main_loop)
1258    
1259    checkpoint59b
1260    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1261      - export/import (between ocean & coupler) fields needed for ocean DIC.
1262    o pkg/seaice:
1263      - get rid of three more exchanges seaice_calc_viscosities (required
1264        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1265      - bug fix in seaice_ocean_stress (update of lab_sea required)
1266      - reduce loop boundaries to necessary minimum also in seaice_evp
1267      - go back to the old way of computing deltaC/Z as the adjoint likes that
1268        better
1269    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1270      passive tracer to an Age Tracer) + update output.txt
1271    o pkg/exf:
1272      - implement A-grid / C-grid selection for wind-stress input files.
1273      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1274      for now, in exf_bulk_largeyeager04.F only :
1275      - change implementation for case where windspeed + 2. components wind-stress
1276        are read-in. AND use rhoConstFresh to convert evap.
1277    o pkg/seaice:
1278      - use correct EXCH_UV for wind-forcing (on A-grid).
1279      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1280        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1281    o pkg/exf:
1282      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1283      EXF_INTERPOLATION:
1284      - merge global_with_exf/code version of exf_interp_read.F
1285        to the main code ;
1286      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1287        reading the file ; Important: This options needs to be defined to recover
1288        previous code.
1289        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1290      - no longer loose real*8 precision along the way when using exf_iprec=64.
1291    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1292      - change discretisation of evp-solver in order to avoid another exchange
1293        (changes lab_sea) and clean up a little
1294      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1295        help the adjoint (this also changes the results slightly)
1296      - add a few "_d 0" where they had been missing in seaice_evp.F
1297      - cleaning up: remove unused seaice_calc_rhs.F
1298    o pkg/exf: some cleaning-up:
1299      - change various "constants" into runtime parameters
1300      - cleaned-up Large&Yeager04 routine which should eventually
1301        replace exf_bulkformulae.F (changed names of S/R and CPP)
1302        and merged various ALLOW_ATM_WIND options
1303     only used with thsice pkg (in thsice_get_exf.F):
1304      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1305        which are used when useStabilityFct_overIce=TRUE (= the default)
1306      - change default values of ice & snow emissivity and scale downward LW
1307        by ice & snow emissivity.
1308    o pkg/thsice:
1309     fix few little problems, in thsice_calc_thickn.F:
1310      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1311      - melt only laterally if hIce < hThinIce (as the comments say)
1312      and in thsice_extend.F:
1313      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1314      - start to form ice as soon as the minimum ice-volume is reachable.
1315     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1316      and cpl_aim+ocn
1317    o pkg/kpp
1318     - move computation of surface related input fields to KPP into a new
1319       subroutine kpp_forcing_surf.F
1320     - remove wrong (within bi,bj loops) EXCH calls.
1321     - little cleaning (add argument myThid in last position, cvs header ...)
1322     - for now, fix conservation problem by exchanging KPPviscAz (may not
1323       be the best fix)
1324    o pkg/seaice
1325     - check for inconsistent evp parameter/cpp-flag combination
1326     - remove leftover errIO flat for obsolete name list error handling
1327    o OpenAD
1328     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1329    
1330    checkpoint59a
1331    o pkg/seaice: some parameter clarifications and a little bit of clean up
1332    o pkg/thsice: rename run-time parameters:
1333       himin       -> hIceMin
1334       himin0      -> hThinIce
1335       hihig       -> hThickIce
1336       i0          -> i0swFrac
1337       transCoef   -> bMeltCoef
1338       frac_energy -> fracMelting
1339      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1340       with default values (for now) that do not change the results.
1341      remove old version of thsice vars advection in pkg/seaice.
1342    o in FFIELDS.h:
1343      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1344      - make pLoad & sIceLoad always available (but still only used if
1345         ATMOSPHERIC_LOADING is #define).
1346    o pkg/kpp: replaced _KPP_RL with _RL
1347    o bug fixes for vertical diffusivity computations when both KPP and
1348        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1349        are no longer updating the vertical diffusivity array
1350        (passed as argument) but are (re-) setting those arrays.
1351    o pkg/seaice: fix bug in evp solver, while doing that
1352      - change (improve?) discretization of stress computations for both
1353        cgrid-lsr and evp solver
1354      - add a new routine to compute strain rates
1355      - the above changes lab_sea results
1356      - add no slip conditions for evp solver (off by default), lsr-version
1357        may follow
1358      - fix exchange for shear at Z-points (does not change lab_sea)
1359      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1360        (to force the user to pick a time step since there is not "safe" way
1361        of choosing it)
1362      - add principal stress diagnostics
1363      - rearrange fields for evp a little to avoid having to call a: too many
1364        exchanges and b: exchanges for stress trensor components which we do
1365        not have.
1366      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1367        of evp, complete rewrite for lsr case (latter is does not yet work
1368        in all cases)
1369    o pkg/kpp: add code to have mixing in shelf ice caverns
1370      - add myThid to all kpp routines (long overdue)
1371    
1372    checkpoint59
1373    o pkg/exf:
1374      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1375        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1376      - move exf header files from lower_case.h to UPPER_CASE.h ;
1377        add missing cvs Header & Name
1378      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1379      - add namelist param. selectStressGridPosition, exf_monFreq
1380      - retire many _CLIM routines, and remove data.exf_clim
1381        + params moved to data.exf
1382        + climsst, climsss now handled by exf_set_gen, i.e.
1383          climss?period=0 refers to constant field,
1384          climss?period=-12 to monthly forcing
1385      - split up namelists in data.exf
1386    o pkg/seaice:
1387      - remove seaice_exch and seaice_exch_uv
1388      - remove superfluous exchange of theta
1389      - add myThid to seaice_budget_ocean/ice
1390      - add new interface for atmospheric wind forcing (C-grid only)
1391        + new routine
1392        + two new field (taux, tauy for stress over ice)
1393        + removed one global field (DAIRN) for C-grid case only
1394    o pkg/thsise
1395      - 2nd set of modifs for thsice adjoint in conjunction with exf
1396    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1397    
1398    checkpoint58y_post
1399    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1400      vertical diffusivity, similar to that in MOM4; turned on using
1401      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1402      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1403    o Added capability for 3D specification of background vertical diffusion
1404      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1405      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1406      "data" file that contains the 3D vertical diffusivity coefficients.
1407    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1408      - add code within pkg thsice to advect & diffuse sea-ice fields
1409      similar to (and will replace) what has been added in  seaice_advdiff.F,
1410      but: - conserving Mass, Heat & Salt.
1411           - better when using non-linear advection scheme (not yet fully tested)
1412           - can also be used in atmospheric set-up (for now, only the diffusion).
1413    
1414    checkpoint58x_post
1415    o IO option for global-file compact format:
1416      - add options when generating topology (utils/exch2/matlab-topology-generator)
1417      - add I/O capability (pkg/mdsio).
1418      - adapt utils/matlab/rdmds.m to read this format.
1419      for now long-line format not yet supported by pkg/mdsio (& exch2).
1420    o shelfice: add a few diagnostics
1421    
1422    checkpoint58w_post
1423    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1424      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1425      (and replace horiVertRatio in NH code).
1426      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1427                         and tutorial_plume_on_slope (sensitive to truncation)
1428    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1429      directly to drive seaice model (C-grid only)
1430    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1431     - reintroduce computation of wind from stress,
1432     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1433       mass points to avoid tau = 0
1434     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1435    o rdmnc.m: make it work with "global" files created with gluemnc
1436    o rdmnc.m : some improvements in dealing with singleton dimension
1437      (tested on all testreport mnc output files).
1438    o genmake2: disable pkg/profiles if netcdf test fails.
1439    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1440    o move call to cal_readparms up to make calendar parameters/variable available
1441      to all packages
1442    
1443    checkpoint58v_post
1444    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1445      useDynP_inEos_Zc tested.
1446    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1447    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1448      and portions thereof.  See read_cs.txt for description and examples.
1449    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1450      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1451      following the great-circle arc between those 2 points.
1452    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1453      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1454    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1455     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1456     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1457     - still needs work (not working with some options ; efficiency to improve)
1458       and serious testing.
1459     - use this scheme for temperature & salinity in 2 advection test exp.:
1460       advect_xy & advect_xz, respectively.
1461    
1462    checkpoint58u_post
1463    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1464    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1465    o testreport: add option "-skipdir" to skip some test.
1466    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1467      momentum calculation.
1468    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1469    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1470      remove checkpoint.F and the_correction_step.F (no longer used);
1471      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1472    o add option (linFSConserveTr) to correct for tracer source/sink due to
1473      Linear Free surface
1474    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1475    o pkg/thsice: fix reading mnc-pickups
1476    
1477    checkpoint58t_post
1478    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1479    o pkg/mdsio:
1480     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1481       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1482       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1483     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1484     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1485       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1486     - new S/R (to replace MDSWRITEMETA), which allows to write more
1487       informations (variable names, time ...) to meta files.
1488     - modify rdmds.m to give back the meta file content.
1489    o pkg/diagnostics: change vertical interpolation to be safer, and more
1490       flexible (define p-levels to interpolate to in data.diagnostics);
1491      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1492       diagnostic pointer.
1493    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1494    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1495    o fix multi-category seaice:
1496     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1497       SEAICE_MULTICATEGORY
1498     - fix short wave heat flux
1499    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1500       and allow to use EVP solver. Change forward lab_sea: test both EVP
1501       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1502    o Initial check-in of lab_sea adjoint
1503      (very similar to natl_box_adjoint/code_seaice)
1504      * used C-grid and EVP solver
1505      * used KPP, GM/Redi
1506      * uses inAdExact=.TRUE.
1507      * gradient checks fail for both ADM and TLM
1508        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1509        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1510        issue is related to forward mismatch between g77 an ifort
1511    o pkg/seaice: overhaul of thermodynamics
1512     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1513     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1514     - move a few global fields out of SEAICE.h into seaice_growth.F and
1515       make them 2D (FICE/QNETO/ ...)
1516     - remove FO (it is the same as QNETO)
1517     - introduce a few local fields to avoid modifying external fields such
1518       as atemp, etc.
1519    
1520    checkpoint58s_post
1521    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1522      changed exf_set_gen.F so that
1523        genperiod=0 means input file is one time-constant field and
1524        genperiod=-12 means input file contains 12 monthly means
1525    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1526      this affects truncation error ; generate new output file for exp. which
1527      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1528        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1529        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1530        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1531        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1532        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1533    o start implementation of deep-atmosphere and anelastic formulation
1534    o verification: remove 2nd copy of input files and use script "prepare_run"
1535      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1536    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1537    o profiles: fix for multithreaded case
1538    
1539    o diagnostics: rename few diags:
1540      s/'PRESSURE'/'RCENTER '/g
1541      s/'TICE    '/'oceFreez'/g
1542      s/'TAUX    '/'oceTAUX '/g
1543      s/'TAUY    '/'oceTAUY '/g
1544      s/'SWFLUX  '/'oceQsw  '/g
1545      s/DIFx/DFxE/g
1546      s/DIFy/DFyE/g
1547      and add few ocean-forcing diagnostics:
1548      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1549    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1550      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1551      as actual snow thickness.  It now refers everywhere to effective snow
1552      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1553    
1554    checkpoint58r_post
1555    o modifications to pkg/seaice/growth.F, which change results of
1556      lab_sea experiment: fixes pertain to melting snow over open water, to
1557      masking EVAP under sea ice, and to using the correct AREA variable for
1558      computations of EVAP, PRECIP, HSNOW, and GHEFF
1559    o add ability to read bathy, salt, and theta using MNC (off by def)
1560    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1561      both are turned off by default and do no change any results
1562    o seaice advection with pkg/thsice: a step toward the use of non-linear
1563      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1564    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1565      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1566      in natl_box (affects results @ truncation level: update output.txt)
1567    o multi-threading and IO:
1568      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1569      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1570        (needed to work with SingleCpuIO): tested in all verif. exp.
1571    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1572      affects the results (but none of the verification test uses this scheme).
1573    o Adding some pkg/diagnostics capability to pkg/seaice
1574      (will certainly be subject to changes)
1575    o ctrl: adding new control variables:
1576      lwflux, lwdown, evap, snowprecip, apressure, runoff
1577    
1578    checkpoint58q_post
1579    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1580      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1581      high_res_cube configuration by 4% on Columbia.
1582    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1583      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1584      dynamical allocation (seems to work in multi-threaded).
1585    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1586      single CPU io) so that TAF does not have to see EESUPPORT.h
1587    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1588    
1589    checkpoint58p_post
1590    o obcs: stop if obcs is used with useCDscheme = .true.
1591    o shelfice:
1592     - fix a sign error so that no slip at shelfice interface works
1593     - remove stop for combination non-hydrostatic code and shelfice. That does
1594       not mean, that the results are correct, but at least they are numerically
1595       stable
1596    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1597    o added adjoint exch routined for all exch*3d* routines
1598      and updated flow directives
1599    
1600    checkpoint58o_post
1601    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1602      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1603    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1604      and clean-up reading/writing of pickup files.
1605    o fix local version of read/write pickup (NH part) in rotating_tank/code
1606    o simplify EXCH interface:
1607     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1608     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1609    o added the regrid package
1610    o shelfice:
1611     - add a simple boundary layer scheme to reduce noise
1612     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1613    
1614    checkpoint58n_post
1615    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1616       local variable (not in common block).
1617    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1618      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1619      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1620        to work with SingleCpuIO.
1621    o add "_d 0" to real constant of pkg/cfc subroutines ;
1622       update exp. cfc_exemple & tutorial_cfc_offline output files.
1623    o multi-threading and IO:
1624      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1625        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1626      - barrier before and after reading.
1627      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1628      - avoid using MDS_WRITELOCAL for LAND pkg output.
1629      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1630        common-block variables ; Allows multi-threading with master-thread IO.
1631    o change default MAX_NO_THREADS from 32 to 4 ;
1632      and stop cleanly when MAX_NO_THREADS is too small.
1633    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1634    
1635    checkpoint58m_post
1636    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1637       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1638    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1639       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1640       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1641    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1642        add MITgcm_tutorials (= code + all the tutorials)
1643    o ecco, option to compute cost for total ssh (mean+anom)
1644    o consistent with addition of ptracer and ssh in pkg/profiles
1645    o profiles: adding ptracer and ssh
1646    o testreport: change multi-test output-file name
1647      (from output.txt.{name} to output.{name}.txt)
1648    o profiles: now ok for mutli-tiles case
1649    o seaice: add 4 parameters for different advection schemes for area,
1650      (effective) seaice thickness, enthalphy, and snow height. Their default
1651      is the standard parameter SEAICEadvScheme
1652    o calc_gw:
1653     - add cosFacU in zonal viscous flux (harmonic.visc.).
1654     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1655       of tutorial_plume_on_slope.
1656    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1657    o calc_gw: true flux-form, account for horizontal grid spacing.
1658      update rotating_tank results, but not plume_on_slope (affected at
1659      truncation level, 11 digits).
1660    
1661    checkpoint58l_post
1662    o calc_gw:
1663     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1664     - remove side-drag for now (need to fix it); update plume_on_slope results.
1665     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1666    o commit code to make SST/SSS weights spatially variable
1667      (based on either variable in-situ or variable initial T/S weights)
1668    o pkg/ecco:
1669      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1670        now based on horizontally varying weights wthetaLev, wsaltLev
1671      * cost_averagesflags now returns year indices in addition to day, month
1672      * sflux balance is performed on annual basis
1673        (sflxumm, sfluxmm2, bal_sfluxmm)
1674      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1675        including separate counting and multipliers
1676    o pkg/rbcs
1677      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1678    
1679    checkpoint58k_post
1680    o testreport:
1681     - always build in dir. "build" (if not there, mkdir build instead of building
1682       & running in input)
1683     - run in dir run (if it exists), in build otherwise.
1684     - call prepare_run (if input/prepare_run exists)
1685     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1686    o pkg/exf modifications to interpolation and rotation routines for more
1687       reasonable treatment of North Pole singularity: for tracers North Pole
1688       value is set to northernmost zonal-mean value, for zonal velocity it is
1689       set to zero, and for meridional velocity it is set to northernmost value.
1690    o pkg/exf/exf_check_range.F
1691     - add tile index to diagnostics and move stop statement to the very
1692       end of the routine.
1693    o pkg/diagnostics: (diagnostics_main_init.F)
1694      define title of isomorphic variables according to the current config.
1695    o pkg/thsice with pkg/seaice dynamics:
1696    - fix domain of computation (interior only, required for exf) and do exchanges
1697    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1698    o towards a standard way of dealing with multi-threading in MONITOR
1699      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1700    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1701       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1702    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1703    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1704    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1705       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1706    o tracer advection:
1707     - clean-up and simplify calc_common_factors.F
1708     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1709       advection subroutine (but still not used within DST advection S/R)
1710    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1711    
1712    checkpoint58j_post
1713    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1714      from file (collects calls previously in FORWARD_STEP)
1715    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1716    o adjoint store dir. adjusted accordingly
1717    o genmake2
1718      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1719    
1720    checkpoint58i_post
1721    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1722      on wind stress (SEAICEstressFactor defaults to 1.)
1723    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1724      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1725    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1726      on CS-grid: no longer loosing mass.
1727    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1728    o pkg/ggl90: fix sloppy output and fix a bug
1729    o pkg/seaice: added SEAICEuseEVPpickup parameter
1730      - Set to false in order to start EVP solver with
1731        non-EVP pickup files when using SEAICEuseEVP
1732      - fix sign error in diffusion in seaice_calc_rhs
1733    
1734    checkpoint58h_post
1735    * Modifications for bottom topography control
1736      o replace hFacC by _hFacC at various places
1737      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1738      o add non-self-adjoint cg2d_nsa
1739      o update autodiff support routines
1740      o re-initialise hfac after ctrl_depth_ini
1741      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1742    * Adding verification for 5x5 box (4-layer) bottom topography control
1743    
1744    checkpoint58g_post
1745    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1746       used for mean seasonal cycle, mean diurnal cycle); add an example
1747       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1748    o pkg/ggl90:
1749      - add parameter (minimum surface kinetic energy)
1750      - fix bug (avoiding division by zero)
1751    o couple pkg/thsice to pkg/seaice:
1752      - modify advection in seaice to accomodate new scalar fields to be advected
1753      - only muliDimAdection scheme work with seaice/thsice
1754      - mapping of thsice-variables to seaice-variables, back and forth
1755      - does not break the verification experiments, but does not give the
1756        desired results either
1757    o pkg/seaice
1758      - make (default) second order advection a bit less confusing?
1759    
1760    checkpoint58f_post
1761    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1762      to pkg/seaice):
1763      - new routines thsice_map_exf and thsice_get_exf provide the interface
1764      - add an additional formal parameter to thsice_solve4temp
1765    o pkg/exf:
1766      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1767      - correct Stefan-Boltzmann constant
1768      - new parameter for longwave surface emittance
1769      - separate some stuff from exf_bulkformulae into new routines  
1770        exf_radiation, exf_wind
1771      - add new parameters and constants: longwave emissivity for ocean, ice
1772        and snow, evaporation parameters over ice
1773      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1774        either wind from stress or stress from wind
1775    o pkg/thSIce:
1776    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1777    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1778       and THSICE_CALC_THICKN
1779    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1780    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1781      to make debugging easier.
1782    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1783    o pkg/bulk_force:
1784      - clean-up comments and parameters ;
1785      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1786    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1787      generate new output for test-experiment: aim.5l_cs.thSI
1788    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1789      testreport accordingly
1790    
1791    checkpoint58e_post
1792    o SEAICE_CGRID adjoint done
1793    o R_STAR adjoint implemented.
1794      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1795      * need to sort out init. of h0facc, etc.
1796    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1797      to be able to use it in pure forward.
1798    
1799    checkpoint58d_post
1800    o upgrade simple test-experiment to tutorial example:
1801     step.1: duplicate the experiment and (step.2) will remove the old copy.
1802      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1803      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1804      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1805      tutorial_global_oce_biogeo    <- copy of dic_example
1806      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1807      tutorial_plume_on_slope       <- copy of plume_on_slope
1808      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1809      tutorial_global_oce_optim     <- empty for now (David ?)
1810      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1811     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1812    o correct a sign problem in cost_scat.F
1813    o obcs and ptracers: fix boundary conditions for advections schemes
1814      with larger stencil
1815    o thsice adjoint: start
1816    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1817      completeness
1818    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1819      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1820    o ptracers adjoint:
1821      * avoid extensive recomputatations
1822      * fix missing re-init. of gptr (missed by TAF)
1823    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1824      me to turn off the excessive output to STDOUT that this package produces
1825    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1826      and add those terms in Vector-Invariant formulation.
1827    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1828      if the control period (xx_hfluxperiod etc) is 0
1829    o in profiles pkg, clean routines and fix details
1830    o in ecco pkg, reading ssh data:
1831      fix problem in case the model does not start at iter0=0
1832    o fix mnc-pickup/restart for ptracers
1833    o new package prifiles:
1834      code to compute profile-based cost by Gael Forget
1835      (modifs in ecco, ctrl, autodiff)
1836    o Benign bug fix in initialization (spotted by M. Mazloff) of
1837      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1838    
1839    checkpoint58c_post
1840    o adjoint: finish NLFS adjoint and provide reference output in
1841      verification/global_ocean.90x40x15/results_ad_nlfs
1842    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1843      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1844      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1845      with SEAICE_CGRID defined.
1846    o move calendarDumps from "data" to "data.cal" and clean-up the code
1847      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1848    o add useEXF & useCAL flags (for now, set in hard-coded way)
1849    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1850      (were missing in NH mode, and wrong in quasihydrostatic mode).
1851      waiting for Chris updated version of calc_gw to add those CALLs.
1852    o fix bug in quasihydrostatic S/R ;
1853      add a test for this option: global_ocean.90x40x15.qshyd
1854    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1855      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1856    o add on/off flag useOffLine for package OFFLINE
1857    o seaice:
1858      - modify advection so that it works also on the C-grid
1859      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1860        problem in multi-tile runs with C-grid
1861      - add flags for clipping ice velocities and/or masking solver forcing
1862      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1863        C-grid solver
1864      - added a few comments to seaice_diffusion.F
1865      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1866        are now exclusive)
1867      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1868        required re-ordering the code a little:
1869       + make DAIRN global variable (defined in SEAICE)
1870       + move computation of the viscosities eta and zeta into a new separate
1871         routine (because I need to recompute them in seaice_ocean_stress.F)
1872    
1873    checkpoint58b_post
1874    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1875      update output.txt of exp. aim.5l_cs.thSI
1876    o various mnc cleanups and improvements:
1877      + shrink lookup tables by factor of ~4
1878      + better error reporting when running out of lookup space
1879      + able to handle longer path/file names (up to 500 chars)
1880    o adjoint:
1881      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1882      - TBD: "hidden" mom_vecinv recomp. in dynamics
1883    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1884     (allow to differentiate between forcing components using new integer flags:
1885      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1886     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1887    o ecco
1888      - enable trend removal from SSH anomaly obs.
1889    o adjoint
1890      - a fix for PmEpR when #undef EXACT_CONSERV
1891      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1892      - try to fix "hidden" recomp. in forward_step for NLFS
1893        (NLFS seems broken sometimes after I checked it in)
1894    o seaice:
1895     - add c-grid version of the dynamic solver:
1896       + three new routines that are the c-grid substitute lsr, dynsolver
1897         and ostres
1898       + put a few fields that were local to dynsolver into global common
1899         blocks, so that I can move the computation of stresses etc into
1900         seaice_lsr (saves coding but may break the adjoint).
1901     - replace more hardwired parameters by runtime parameters
1902     - add ice masks that mask the rhs of the implicit solvers where there
1903       is no ice (commented out in seaice_dynsolver, because i am not sure
1904       if this works properly), eventually this should replace the clipping
1905       of ice velocities in seaice_dynsolver to +/-40cm/s.
1906    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1907      include it only where its needed
1908    o move balancing of fluxes before the call of external_forcing_surf
1909    o seaice:
1910      - correct units of turning angles (now they are really in degrees)
1911      - move computation of GWATX/Y out of main routine into dynsolver
1912      - initialize GWATX/Y in seaice_init
1913    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1914      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1915    o seaice: add runtime flags for turning angles (default to zero)
1916    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1917      and trend from exf forcing and ctrl control adjustments
1918    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1919      (since checkpoint57x_post)
1920    o change the default rotation period to 86164.s = the Earth rotation
1921    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1922      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1923    o seaice advection: add code for choosing between the default (2nd order
1924      central differences) and multiDim advection schemes provided by
1925      pkg/generic_advdiff
1926    o seaice:
1927      - removed all references to SEAICE_GRID.h fields from
1928        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1929        (cubed-sphere configuration will change a little)
1930      - grid computations in seaice_init are obsolete now.
1931      - cleaned up code a little so that is easier to read (hopefully).
1932      - added new (better?) discretizations of default advection and diffusion
1933        (turn on with SEAICEuseFluxForm)
1934      - replace 1 in 3d global fields by kSurface in growth.F
1935      
1936    checkpoint58a_post
1937    o seaice:
1938      - bug fix in advect.F
1939    o shelfice:
1940      - separate shelfice load anomaly from pload (breaks with time
1941        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1942        Its default is 0., but it may be computed more cleverly from (unknown)
1943        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1944        done offline. A good approximation of the pressure load anomaly is
1945        necessary to avoid large initial adjustment processes underneath
1946        deep-reaching shelfice.
1947      - small fix in ISOMIP shelfice_thermodynamics
1948      - add more sophisticated thermodynamics of Hellmer (1989), this is
1949        now the default
1950      - give a few constants more intuitive names
1951    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1952      if bulk formulae are used in long integration (especially EmPmR). Turn
1953      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1954      if balancePrintMean, the imbalance that is substracted is printed to
1955      STDOUT.
1956    o fix bug (typo) in obcs_apply_eta.F
1957    o add a new package shelfice which enables us to model the circulation
1958      underneath shelf-ice with draughts of hundreds of meters.
1959     - works
1960     - to do: + include improved thermodynamics
1961              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1962                instead of new field kTopC
1963              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1964                instead of new field R_shelfIce and new code in ini_depth.F
1965                and ini_mask_etc.F?
1966              + adjust vertical mixing schemes?
1967    o seaice pkg:
1968     - add a cpp-flag to include a simple formula for a salinity dependent
1969       freezing point of sea water at the surface
1970     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1971       meridional stresses are now different (and hopefully correct)
1972    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1973       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1974       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1975    o pkg/diagnostics: add options and parameters for regional-statistics
1976       diagnostics ; define regions by reading a region-mask from a file
1977       (might add other options later)
1978    o pkg/bulk_force:
1979     - add option and parameters to use AIM surface-flux formulae.
1980     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1981       others forcing fields (defined in PARM05, parameter file "data") are loaded
1982       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1983     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1984     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1985     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1986       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1987     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1988    
1989    checkpoint58
1990    o add "--embed-source" option to genmake2 which, when the supporting
1991      tools can be compiled (as determined by genmake2) will turn on the
1992      embed_files package which then embeds the entire MITgcm source code
1993      (*.[fFhc] + Makefile) used for the build within the executable
1994      - requested by CNH but off by default
1995      - adds a paltry <9MB to the mitgcmuv executable in most cases
1996      - only writes the output when useEMBEDSRC in eedata is true
1997    o clean up 3-dim. relaxation codes:
1998      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1999      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
2000      * Thanks to Tom Haine for testing!
2001    
2002    checkpoint57z_post
2003    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
2004      affects output (@ truncation level) of exp. plume_on_slope ; updated.
2005    o fix the pickup behavior for obcs in combination with ptracers
2006    o fix a bug in ptracers_external_fields_load
2007    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
2008      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
2009    o transfered surface NH pressure to eta field (if exactConserv).
2010    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
2011         and update lab_sea output.txt file.
2012    o completing 3-dim. relaxation code: additional term
2013         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
2014      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
2015      * At compile time, in "EXF_OPTIONS.h" set
2016          #define  ALLOW_CLIMTEMP_RELAXATION
2017          #define  ALLOW_CLIMSALT_RELAXATION
2018      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
2019          tauThetaClimRelax3Dim = 15552000.0,
2020          tauSaltClimRelax3Dim  = 15552000.0,
2021      * 3 cases:
2022          1) Use a constant-in-time 3-dim. field
2023          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
2024          3) Real-time relax. to time-evolving prescribed field
2025    o Adding Laplacian-type smoothness constraint on
2026      initial and boundary (forcing) controls (ic, bc)
2027      * enable at compile-time via
2028        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
2029      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
2030      * Absolute scale somewhat unclear so far
2031      * no area weighting was included since no other cost term does so far
2032    
2033    checkpoint57y_post
2034    First step for a NLFS adjoint
2035    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
2036    o new init. routines for calc_r_star, calc_surf_dr
2037    o still need to deal with ini_masks_etc
2038    o testreport seemed happy
2039    checkpoint57y_pre
2040    
2041    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
2042    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
2043    o add new offset feature to offline pkg (plus minor cleanup)
2044    o cfc fixes for final year of integration
2045    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
2046      be in GCHEM_OPTIONS).
2047    
2048    checkpoint57x_post
2049    o fix testreport Pb in multiple test experiment.
2050    o cleanup our namelist syntax in verification:
2051      - make it more F95 standards compliant (some work still needed)
2052      - allows the vast majority of our tests to work with gfortran
2053    o Non-Hydrostatic:
2054     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
2055     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
2056    o Allow to apply AB on T,S rather than on AB(gT,gS):
2057     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
2058     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
2059       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2060     - need a "clever" read_pickup to restart from the other AB formulation
2061    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2062    o remove some unused variables (reduces number of compiler warnings)
2063    o adjoint
2064      * Disable useVariableViscosity for adjoint for time being
2065        (there are a number of extensive recomputations)
2066      * Initialize certain variables needed for adjoint
2067    
2068    checkpoint57w_post
2069    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2070                 fix the singleCpuIO RS version of MDSWRITEFIELD
2071       and add a WARNING if using globalFiles=T with multi-processors.
2072    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2073      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2074    o tracer advection scheme:
2075      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2076       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2077       was not very convenient).
2078      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2079       (further tests needed for the implicit DST & Flux-Limiter schemes).
2080    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2081      and sRef for convenience, handy, when you want to initialize
2082      ptracers in a large domain with a constant non-zero value. Also,
2083      untangle ptracers_init.F a little.
2084    
2085    checkpoint57v_post
2086    o change dome exp. to use variable viscosity in side-drag terms.
2087    o remove all the files from the cfc_offline test since they are now
2088      incorporated into tutorial_cfc_offline which has been producing
2089      identical results for a few days of testing
2090    o add new parameter: sideDragFactor to enable half-slip-side BC
2091      and change side-drag S/R to use viscosity from mom_calc_visc
2092      (can switch back by setting sideDragFactor=0.); affects results at
2093      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2094       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2095    o vorticity & strain are now computed without masking, to account for
2096      no-slip-side BC in variable viscosity calculation ; mask is applied
2097      anyway later on, before computing advection/coriolis terms.
2098    o modify exp4 to test new obcs support for reading from external files
2099      and for passive tracers
2100    o fix behavior of ptracers_monitor when monitor output is written to a
2101      netcdf-file; still not independent of monitor.F (writes in the same
2102      file).
2103    o change default value of tRef (put a uniform, meaningful value for ocean
2104      & atmos) and initialize sRef (was missing, as Martin mentioned).
2105    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2106      to be proportional to enstrophy dissipation length.  Thus,
2107       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2108      This is now consistent with Smagorinsky and with the manual.
2109    
2110    checkpoint57u_post
2111    o OBCS and PTRACERS: add open boundary support for passive tracers
2112      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2113        OB-values from file; this is not different from the way theta and salinity
2114        are treated
2115      - however, Orlanski-radiation conditions are not supported, and the model
2116        will stop if you use pTracers and Orlanski at the same time.
2117      - beefed up the rountine obcs_external_fields_load: now only those open
2118        boundary values are overwritten with values from files for which there
2119        are really files, otherwise the OB-fields remain untouched. This makes
2120        it possible to use different OBs at different ends of the domain (as
2121        with EXF)
2122    o reduce number of exch calls in shap_filt (s2).
2123    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2124      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2125    
2126    checkpoint57t_post
2127    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2128    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2129      same truncation, independent of the face number: affects affects several
2130      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2131    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2132      note that biharmonic viscosity + no-slip was not tested in any experiment.
2133    o fix bug in non-linear free-surf side-drag ; generate new output for
2134      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2135    o make mnc honor the writeBinaryPrec flag for most kinds of output
2136    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2137  o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation  o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2138    error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).    error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2139  o add brackets in multi-terms sum to get same truncation, independent of  o add brackets in multi-terms sum to get same truncation, independent of
# Line 699  o add two new packages Line 2829  o add two new packages
2829    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2830    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2831      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2832      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2833  o add offline package  o add offline package
2834  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2835    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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