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revision 1.363 by edhill, Thu Oct 7 19:31:14 2004 UTC revision 1.1173 by jmc, Fri Oct 9 21:08:38 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o tutorial_global_oce_optim:
8      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
9    o pkg autodiff
10     - fix bug in autodiff_restore
11     - make genmake2 remove comments and empty lines from ad_input_code.f in
12       order to reduce file size (new script file remove_comments_sed)
13    o allows to specify vertical profile of vertical viscosity (viscArNr)
14    o pkg autodiff
15      autodiff_ini_model_io: comment out writing of grid information to netcdf
16      files, because at this time the grid fields are a bunch of zeros
17      (this is analogous to ini_mnc_vars.F)
18    o pkg seaice/autodiff:
19     left-over from removing the 3-time-level fields:
20     - small rearrangement of common blocks (SEAICE.h)
21     - fix field declaration in order to get meaningful output in
22       adseaice.*.nc (adcommon.h)
23    o pkg obcs:
24     - go through NH code only if nonHydrostatic=T
25     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
26     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obcields
27       => Update output of experiment seaice_obcs
28     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
29     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
30     - fix restart for useOBCSprescribe + useEXF
31    o pkg ctrl
32     - make obcs as control parameter work also with useSingleCPUio
33     - replace a few sny and snx by Ny and Nx to be consistent with
34       ctrl_set_globfld_x/yz.F
35    o pkg seaice
36     - re-introduce global field frWtrAtm for the case of
37       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
38     - catch the case of an empty filename in seaice_cost_init_fixed.F
39    o pkg ecco:
40     - small bug fixes in the_main_loop
41      . fix order of monitor arguments
42      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
43      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
44        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
45     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
46       imbalance diagnostics for wmean_h/sflux = 0
47     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
48     - catch the case of empty filenames in ecco_cost_init_fixed.F
49       and ecco_readparms.F
50     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
51       to make this statement meaningfull in ecco_cost_weights.F
52    o pkg zonal_filt:
53      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
54      - when using rStar, filter uVel*hFacW instead of uVel
55       (tested without topography: fix a Pb of growing instability with NLFS)
56    o pkg/aim/thsice:
57     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
58      (works as SST restoring)
59    o pkg/thsice:
60     -add specific parameter for salt restoring in slab mixed-layer
61       (by default equal to the temperature restoring)
62    
63    checkpoint61v
64    o pkg/kpp:
65     -add double diffusive contributions as a hack, turned off by default
66      for now, and the code can be excluded with a CPP-flag
67      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
68     -add a verification experiments to "vermix" to test this code
69    o pkg/mom_common:
70      Move computation of length scales to mom_init_fixed.F (avoid recomputation
71      at each time-steps*levels).
72    o pkg/layers:
73      Created a new package for computing volume fluxes in temperature or
74      [not yet implemented] density layers, e.g. for calculating residual
75      overturning circulations.
76    o pkg/diagnostics:
77      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
78    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
79    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
80      To avoid mixing type (RS/RL) of input/output array argument,
81      replace single mixed-type array with a pair from each type (RS/RL).
82    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
83      is now implemented for all pkgs (previously only done for the main pickup)
84    
85    checkpoint61u
86    o pkg/obcs:
87      - change OB?eta from _RS to _RL and put them into a separate commen block
88      - add code to read OB?eta from a file via obcs_prescribe_read: the code
89        compiles and does not destroy any other experiments, the data is read
90        properly, but the code is not tested in actual applications
91    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
92      create a meaningful unit attribute for the time coordinate variable
93    o pkg/ebm: add plenty of missing "_d 0" ;
94       update results of experiment global_ocean_ebm (fwd + adjoint tests)
95      Notes: several pieces of code only works for (very) specific set up
96       (domain size, lat range, etc ...); should be documented & stop if one
97       of those assumptions is not meet.
98    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
99       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
100          and offline_exf_seaice (seaicetd + adjoint).
101    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
102       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
103        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
104    o few changes to pass when compiling with strick checking of arguments
105       across S/R (allow to find few bugs in S/R calls).
106    o pkg/seaice:
107     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
108       2d-fields, for slightly better performance
109    
110    checkpoint61t
111    o pkg/seaice:
112     - remove unused variables in seaice_evp
113     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
114    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
115       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
116       each processor opens a different file (a fix from Matt).
117    o cg2d:
118       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
119       this reduces number of EXCH calls by 2 when using exch2.
120       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
121       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
122    o pkg/thsice:
123       add code for Near Infra-Red albedo (from Jeff)
124       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
125    o ini_model_io:
126       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
127       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
128       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
129    
130    checkpoint61s
131    o pkg/exch2 (exch2_rxN_cube*):
132       remove last BARRIER (no need to synchronise after getting data from shared
133       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
134    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
135      and generate new output (for the 2 tests) using default rotationPeriod.
136    o pkg/exch2:
137      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
138        (was already the case with AUTODIFF_EXCH2 defined)
139      - add bj in exch2 arrays and S/R.
140      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
141        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
142    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
143      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
144        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
145      - verification experiment natl_box.longstep
146    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
147      allow different versions of ifort (8 or 9) and different versions
148       of mpi (mpich or mpich2) to be used with the same optfile.
149      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
150       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
151    o pkg/seaice:
152      fix previous modif (3-level field removed) for old-pickup reading
153    
154    checkpoint61r
155    o pkg/seaice:
156     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
157      1. introduce fields for time step (N-1)
158      2. do not use levels 2 and 3 anymore (but keep them)
159      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
160         includes changes to pkg/thsice/thsice_get_velocity.F,
161         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
162         pkg/obcs/obcs_apply_uvice.F.
163     - completely remove code for leap-frog time stepping for second order
164       advection
165     - adjusted adjoint accordingly;
166       gradient checks have improved by an order of magnitude!
167    
168    checkpoint61q
169    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
170     - the boundary conditions along open boundaries are unclear, because the
171       associated masks are set to zero and are thus treated as closed when
172       applying the slip-boundary conditions.
173     - move initialisation of grid variables from seaice_init_varia to _fixed
174    o adding doc/diags_changes.txt
175    o model/src:
176      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
177       to avoid "_diags" naming if no relation to pkg/diagnostics.
178      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
179       file and only call PLOT_FIELD_XYZ if debugMode=T.
180      remove few PLOT_FIELD_XY calls outside initialisation.
181      remove few unnecessary BARRIER.
182    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
183      of salt_plume package in Southern Ocean
184    o pkg/thsice:
185     - fix hOceMxL in overlap (needed for sea-ice advection);
186       update output of experiment global_ocean.cs32x15.icedyn.
187    o pkg/seaice:
188     - make the (placeholder-)tracer IceAge a little more meaningful
189      by avoiding ridging of age due to convergent ice flow
190     - add diagnostics for surface temperature, atmospheric and oceanic
191       heat flux, and atmospheric and oceanic ice growth
192    
193    checkpoint61p
194    o eesupp (global_max & global_sum):
195     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
196     - remove starting & endding barrier (no longer needed)
197    o pkg/mdsio, writelocal:
198       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
199       (remove the STOP): uses shared buffer IO to store data from all threads
200       and then let master-thread write nThreads tiles.
201    o pkg/mdsio (read/write field):
202     - tiled IO done in 1 piece (all levels at a time);
203     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
204     - multi-threaded: allow to read/write local (non-shared) array
205       (was already working with singleCpuIO ; now works also without);
206       => no longer needs barrier call after reading a file (added inside
207       mds_read/write field).
208     - move barrier calls outside gather/scatter_2d to mds_read/write_field
209    o pkg/obcs/exf
210      - exf_getffieldrec.F: add a few ". _d 0" and
211                            add code to catch the case fldperiod = 0.  
212      - obcs_precribe_read.F: change if statements so that they match
213                              the variable type (_RL)
214      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
215        exf_iprec) as part of namelist EXF_NML_01
216    o pkg/mdsio:
217      - read/write tiled (local) files: read/write 1-level tile chunk at a time
218        (instead of segment of length sNx); expected to speed up tiled IO.
219    o pkg/exch2:
220      - take buffer copy from/to array out of S/R exch2_send/recv into new
221        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
222        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
223      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
224      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
225        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
226        including Topology header file (and common blocks).
227      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
228        remove 2nd exch call in exch2_s3d_rx (no longer needed).
229      - document S/R arg. list (+ update some comments)
230    o pkg/seaice:
231      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
232        temperature and humidity over sea ice based on climatological values.
233      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
234        of LSR (this change is expected to change the results slightly because now
235        it uses slightly difference moduli from the second last LSR solution, but
236        that is more consistent with the stress computations; this part of the code
237        is not tested in the verification experiments)
238      - fix diagnostics for flux of ice in case of B-grid
239      - turn strain rates eij and press into global fields within global
240        common block in SEAICE.h for more straighforward diagnostics
241      - fix diagnostics for principal stress components, press, zeta, eta
242        to give something meaning full
243    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
244      new output (all 4 tests) using default rotationPeriod.
245    o pkg KPP:
246      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
247      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
248        and normal grid from 1 to Nr)
249    o Fix computations of L4rdt in mom_calc_visc.F
250    o eesupp:
251      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
252      should be called before a "stop" if we know that all process are going
253      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
254    
255    checkpoint61o
256    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
257    o model/src/ini_curvilinear_grid.F:
258       compute angleSin/CosC when they are not read from a file
259    o pkg/seaice:
260       add pseudo time stepping for LSOR
261    o pkg/exch2:
262       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
263    o pkg/seaice:
264       Adding separate sea ice albedo, drag coefficients, and HO in Southern
265       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
266    o SingleCpuIO:
267       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
268    o pkg/seaice:
269       put exchanged variable in (local) common block for MPI+Multi-Threads
270       to work (necessary with exch1, and for now with exch2 too).
271    o verification: to get more experiments tested with mpi, mth and mpi+mth,
272      change tiling of:
273       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
274       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
275      update output of exp:
276       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
277       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
278      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
279                       (note: output.txt generated on faulks using only 1 tile)
280    o eesupp & mdsio (SingleCpuIO):
281     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
282       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
283       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
284     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
285     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
286       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
287    o pkg/exch2:
288     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
289       read parameter file "data.exch2" if it exists; otherwise try default regular
290       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
291     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
292       with new code (not to be used, just as a backup solution).
293     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
294       in utils/exch2/input.
295    
296    checkpoint61n
297    o eesupp & mdsio (SingleCpuIO):
298      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
299        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
300        receive real*4 array (instead of real*8) to read/write 32.bit files.
301        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
302         and remove new mapping S/R)
303    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
304      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
305        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
306        when using exch2. Add S/R to map global io-buffer to global model array.
307      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
308    
309    checkpoint61m
310    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
311      and add 3 other S/R for other types (R4,R8,RS).
312      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
313    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
314     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
315     - reduce number of macro definitions (keep only those which are used);
316       can always call directly the corrresponding S/R if needed.
317     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
318       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
319     Fixed wrong type of arg in:
320       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
321       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
322     To fix: global_sum of var in common block is wrong (multi-threaded) in:
323       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
324     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
325    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
326      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
327    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
328    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
329      edges are closed (zero depth); might happen with "blank tiles";
330      for now, disabled if using OBCS.
331    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
332      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
333    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
334      to reduce length of 1.D array print in STDOUT.
335    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
336      + use 48 tiles (16x8): this will allow to test "blank tiles".
337    o start to test MPI + multi-threaded (change testreport to skip tests
338      where number of tiles do not match).
339    o genmake2: add option "-omp" to turn on Open-MP ;
340      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
341    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
342      and keep the original tile numbering. Note: compatible with old
343      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
344    
345    checkpoint61l
346    o Overlaps had been forgotten in calculating ijk keys : fixed
347    o fix cyrus makedepend for gcc 4.4
348    o experiment fizhi-cs-aqualev20:
349      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
350      and generate new output. Note: new output is much closer to the old
351      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
352      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
353    o pkg/fizhi:
354     - change to avoid indices going deliberately over array-bounds
355     - remove unnecessary MPI stuff
356     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
357     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
358       does not go over array-bounds and therefore returns reliable output.
359     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
360       this S/R has 4 output arguments, which are used inside "get_alarm";
361       when it is called with the same variable "ndum" in place of several
362       output arguments, this produces weird side effect inside "get_alarm"
363      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
364       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
365       address) and produces error.
366    o tools/gemake2: (March 27-29 2009)
367      with option "-mpi": link *_mpi files from "MODS" dir (this is what
368      testreport does).
369    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
370    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
371       update lab_sea.lsr & lab_sea.salt_plume results
372    o pkg/seaice:
373      Major overhaul of the LSOR solver: change discretization from original
374      finite differences to finite volume. The old routine is still in the
375      file seaice_lsr.F and can be turned on with the CPP-flag
376      SEAICE_OLD_AND_BAD_DISCRETIZATION
377      Along with this change, the discretization of the strain rates is changed.
378      The same flag turns on the old discretization in seaice_calc_strainrates.F
379      All verification experiments with seaice are affected (except for
380      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
381      results by setting the above flag.
382      Further changes involve changes in defaults:
383      - ALLOW_FLOODING is defined and turned on by default
384      - SEAICEadvSnow = .true. is now the default
385      - SEAICEadvSalt = .true. is now the default
386      - SEAICEadvAge  = .true. is now the default
387      - SEAICE_clipVelocities  = .false. is now the default
388                                         (as per J. Zhang's recommendation)
389      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
390        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
391      - seaice_growth: replace computation of UG by a simple copy from wspeed
392    
393    checkpoint61k
394    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
395      seaice_lsr: fixed a few metric terms,
396                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
397                  add more debugging diagnostics
398      seaice_evp: removed superfluous many metric terms of FV discretization
399                  of stress divergence
400                  affects lab_sea, lab_sea.hb87
401      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
402                  of stress divergence for non-evp solver
403                  (this part is not tested anywhere)
404      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
405                  they were effectively only half slip
406                  affects lab_sea.hb87
407      updated all relevant verification experiments (except lab_sea//output_adm.txt
408        which was left over, but fails at level 7 & 6)
409    
410    checkpoint61j
411    o pkg/seaice: turn a few hard wired parameters into run time parameters
412    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
413      time in seconds as promised by the usints in seaice_monitor and exf_monitor
414    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
415      that are not cubed-sphere grids
416    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
417    o pkg/ctrl:
418      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
419    o non-hydrostatic (calc_gw.F):
420      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
421      update output of exp. global_ocean.cs32x15.viscA4
422    o remove backward compatibility for thetaMin,phiMin
423      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
424    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
425      interpolated wind field not only for curvilineargrid=.true., but also
426      for a rotated grid (rotateGrid=.true.)
427    o pkg/exf: add capability to bypass interpolation for runoff
428      by setting yet another CPP-flag
429    o eesupp/src, B-grid exchange:
430      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
431    o autodiff
432      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
433      allows to switch to single-prec common blocks;
434      corresponding switch occurs in tamc.h, integer isbyte
435      TAF store directivs "byte" and "kind" seem equivalent;
436      Most tamc.h have been updated correspondingly.
437    
438    checkpoint61i
439    o autodiff:
440      fix autodiff_sore/_restore indices for obcs
441      (spotted by I. Hoteit, M. Mazloff)
442    o pkg/autodiff, pkg/ctrl:
443      Add flag to reduce all tapelev I/O to single-prec.
444      In data.ctrl set
445        doSinglePrecTapelev = .TRUE.
446    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
447      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
448    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
449      real fresh water flux (not yet)
450    o pkg/mdsio & rw:
451     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
452     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
453    o pkg/flt:
454     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
455       init_fixed & ini_varia.
456     - clean-up & simplify linear interpolation S/R:
457       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
458     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
459     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
460     - add vert. coordinate & horiz. indices to output files.
461     - change vertical position in initial condition, from index to depth [m].
462     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
463       (easier to get to a curvilinear grid) ; delX,delY no longer used.
464    o pkg/ggl90: a few modifications:
465     - fix bottom boundary condition, and interpolation of KappaE
466       near top and bottom
467     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
468     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
469     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
470    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
471      (maintain temporary backward compatibility, until next checkpoint)
472    
473    checkpoint61h
474    o pkg/diagnostics with "periodic averaging diagnostics":
475      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
476    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
477    o pkg/obcs: fix loop ranges for balancing code
478    o pkg/flt:
479     - improve criteria for finding which tile owns a float.
480     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
481    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
482      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
483      with ocean biogeo)
484    o pkg/flt:
485     - do some cleaning and fix the restart ;
486     - add output.txt in flt_example/results to get this pkg tested.
487    o genmake2: add an EXTENDED_SRC option and flag.
488       for now, cannot be turned on on command line (only through genmake_local)
489    o pkg/mdsio: read/write vector:
490     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
491     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
492       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
493     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
494      (drop to 4 digits matching for grad). But this test does not look very
495      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
496    
497    checkpoint61g
498    o pkg/flt:
499      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
500       + make OPTIONS file more standard.
501      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
502      - fix _BYTESWAPIO CPP-Flag
503      - standard reading of file-parameter "data.flt"
504      - fix argument list of S/R FLT_RESTART
505      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
506    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
507    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
508      a still unfixed compiler/optimization bug
509    
510    checkpoint61f
511    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
512      update results of global_ocean.cs32x15.icedyn test.
513    o move getcon.F from model/src to pkg/fizhi.
514    o pkg/exf: add parameter for extrapolation of temp up to the surface
515       and option to prevent negative evap (in bulk_largeyeager04 only).
516    o Prather Advection scheme: fix tracer conservation for divergent flow
517      (e.g., when using NonLin Free-Surface).
518    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
519    o gmredi (Visbeck-variable-K):
520     - add more parameters to Visbeck-variable-K.
521     - use a 5 points average for dSigmaR in Visbeck-K calculation
522       (more "homogenous": same stencil and same weights as in dSigmaH)
523     - update output of ideal_2D_oce experiment.
524    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
525      (#undef REAL4_IS_SLOW)
526     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
527       coordinate variable
528     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
529       (surface forcing fields), removes some of the functionality
530     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
531     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
532       probably not all: copy _RS surface flux fields to RL field before
533       calling DIAGNOSTICS_FILL
534     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
535       real*4 (CALL EXCH_*_RS) versions.
536     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
537       (generate new output).
538    
539    checkpoint61e
540    o gmredi (Visbeck-variable-K):
541      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
542      - change computation of Visbeck-K where Slope > Smax :        
543        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
544        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
545    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
546      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
547    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
548    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
549      does not become too large (to avoid precision problems in implicit-diffusion
550      solver); update ideal_2D_oce output.
551    o pkg ggl90:
552      - in ggl90_cal.F: compute only one set of visc/diff, used to
553        step forward TKE/T/S/momentum
554      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
555        have Prandlt =1)
556    o gmredi (fm07):
557      - add lower limit on Transition layer thickness + lower limit on 1/lambda
558      - allow to set few more params from data.gmredi
559    o pkg ggl90:
560          - add missing sqrt(2) factor in computation of mixing length
561            scale in ggl90_calc.F
562            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
563    
564    checkpoint61d
565    o adjoint modifs
566      - adapt to new field rhoInSitu
567      - allow to revert from StoreDynVars2D, StoreDynVars3D
568        to individual fields
569        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
570    o store 3-D (in-situ) density in commom block (DYNVARS.h)
571     - save 1 rho computation.
572     - no longer modify T & S inland when using down_slope pkg.
573    o gad_som : allow to switch to SOM advection for T & S without corresponding
574      pickup files (using new S/R: MDS_CHECK4FILE).
575    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
576      (for useSingleCpuIO to work in multi-threaded)
577    o pkg/shelfice:
578     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
579       with SHELFICEtopoFile in data.shelfice
580     - move code for reading ice shelf topography and modifying hFacC into separate
581       subroutines of the shelfice package
582     - separate initialisation of "fixed" and "variable" variables
583     - kTopC is not (yet) replaced by kSurfC, although this is possible
584    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
585    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
586      and rename:
587      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
588      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
589    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
590    
591    checkpoint61c
592    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
593      to add mass source/sink of fluid in the interior (3-D generalisation
594      of oceanic real-fresh water flux).
595    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
596    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
597    o new pkg: down_slope
598      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
599      - presently, modify T & S inland (dwnslp_calc_rho.F).
600        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
601      - implementation for ocean in P-coords not tested.
602      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
603    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
604      (to facilitate conversion of oceanic pkg to p-coordinate).
605    o change FIND_RHO to FIND_RHO_2D :
606      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
607    o new pkg: cheapaml
608    
609    checkpoint61b
610    o exch2:
611      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
612      - no longer depend on the order sequence (N,S,E,W).
613      - 3rd exchange no longer needed (tested with 24 tiles).
614      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
615      - exch_UV_A-grid readily available (but not yet tested).
616      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
617      (both are no longer needed) in exch_uv: no effect in forward run; but
618       get truncation error differences with adjoint exch.
619    o exch2:
620     - change index-bounds storage (moved from target to local tile,
621       more intuitive this way) ; rename/remove some variables.
622     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
623    
624    checkpoint61a
625    o exch2/matlab-topology-generator:
626      fix bug in index bounds for N-S internal exchange (hard to tell if this
627      had any effect on the solution).
628    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
629      is exceeded
630    o testreport: modify syntax of awk, so that it works also with
631      awk, and not only with nawk and gawk
632    
633    checkpoint61
634    o autodiff
635      Change default for TAF usage by removing argument '-nonew_arg'
636      This changes TAF subroutine argument list (ordering of active var.)
637      Omission of this flag leads to incompatibility w.r.t. TAMC
638      To restore TAMC-compatibility, need following modifs:
639      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
640      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
641      Tested TAF version is 1.9.22
642      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
643    
644    checkpoint60
645    --->>> This is the last checkpoint for which generating the adjoint
646    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
647    --->>> by default.
648    --->>> Future checkpoints will ommit this flag by default.
649    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
650    o pkg/grdchk: Add gradient check to etan0 perturbations.
651    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
652    o pkg/autodiff: more flexibility in zeroadj.
653      model/src: modifying do_oceanic_phys.F accordingly.
654    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
655    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
656      special setup of gmredi for which the adjoint is stable
657      enough for parameter optimization.
658    o bridging the gap between eddy stress and GM.
659      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
660          along with a change in CPP option (now ALLOW_EDDYPSI).
661      -> when using GM w/ GM_AdvForm:
662          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
663          is applied either in the tracer Eq. or in momentum Eq.
664          depending on data.gmredi (intro. GM_InMomAsStress).
665      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
666      The key modifications are in model/src/taueddy_external_forcing.F
667      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
668    
669    checkpoint59r
670    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
671      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
672      fix option to read coriolis(@ cell-corner) from files with CS-grid.
673    o pkg/mnc: add some attributes to standard 1D-coordinate variables
674    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
675      mass points, when using mnc for output
676      - add runtime parameter (missing_value, missing_value_int) to override
677        default (which is the value of getcon('UNDEF'))
678    o pkg/mnc: prepare mnc for the actual use of missing values with the
679      diagnostics package: small fix in mnc_cw_readwrite.template and more
680      initialisation of never used fields
681      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
682      versions
683    o pkg/thsice/thsice_ini_vars.F added default initial values so that
684      thermodynamics sea ice solver does not blow up when some initial fields
685      are missing.
686    o move from external_forcing_surf.F to ini_forcing.F
687      the p-coord. hack consisting in using pLoad to set phi0surf ;
688      update output of tutorial_global_oce_in_p (affected @ truncation level).
689    o Freshen up a bit hs94.1x64x5, notably:
690      remove rotationPeriod and tRef=5*0. (adjoint only), and add
691      exactConserv=.TRUE.
692    o pkg/generic_advdiff:
693      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
694      applies to files where Temperature & Salinity 2nd Order moments are used.
695    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
696      this uses a dynamically allocated internal state data structure
697      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
698      and requires a fortran 90 compiler
699    
700    checkpoint59q
701    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
702       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
703    o Refresh tutorial_global_oce_biogeo, notably:
704      - change bathymetry (put back seamounts in ACC, use hFacs)
705      - change EOS (POLY3 --> JMD95Z)
706      - use Bryan-Lewis vertical diffusivity
707      - use multidimensional advection
708      - remove old virtual virtual in dic pkg, now done through ptracer pkg
709      - change a couple of parameters in dic pkg
710    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
711    o pkg/obcs: change default to OBCSfixTopo = .true.,
712      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
713      - replace "debugMode" with "debugLevel .GE. debLevB"
714    o implementation of TAF directives for gchem,cfc,dic
715    o remove "exp5" (replaced by tutorial_deep_convection).
716    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
717      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
718      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
719      --> changes results in exp4, seaice_obcs
720    o tutorial_deep_convection :
721      update the set-up and increase resolution and domain size ; start
722      from pseudo initial conditions = output at t=120mn in order to see
723      something happening when running testreport.
724    o pkg/seaice: add os7mp as an advection scheme
725                  add check for advection schemes
726                  add a flag for restoring T and S underneath sea ice
727    o pkg/my82: add netcdf-support and diagnostics
728    o thsice pkg:
729      - Now hsMax limits snow height by turning it into ice following
730        flooding scheme (and now conserving energy)
731      - Slight rewriting of the formula in thsice_calc_thick.F
732      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
733      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
734    
735    checkpoint59p
736    o gchem / dic / cfc :
737      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
738      - add new parameter files: "data.dic" & "data.cfc" ;
739      - various re-arrangement in initialisation & header file ;
740      - fix tutorial_global_oce_biogeo for multi-threaded test.
741    o pkg/dic: test for "pickup_dic" file when restarting ;
742      if no pickup-file, can restart with a re-initialised pH (same as it did
743      before) providing pickupStrictlyMatch is set to False.
744    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
745      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
746    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
747      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
748    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
749     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
750       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
751    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
752       scheme to use for vorticty-term ;
753     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
754       (with default selectVortScheme, return to original discretisation)
755     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
756    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
757    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
758      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
759      also fix diagnostics VISCAHW & VISCA4W.
760    
761    checkpoint59o
762    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
763    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
764      move a few statemens out the main loop into separate loops
765    o pkg/shelfice:
766      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
767        (kg/m^2/s), does not break tests, because in verification/isomip,
768        rhoConstFresh=rhoConst (by accident)
769      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
770      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
771        new file model/src/seawater.F, so that they are available for all pkgs.
772      - convert potential temperature into in-situ temperature. This changes the
773        isomip tests => update tests
774    o add a flag writePickupAtEnd (default=true) to be able to suppress
775      writing a pickup at the last timestep
776    o tools/mpack-1.6 :
777      - disable automake (not working) and autoconf (not needed).
778      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
779        also cleaner with much less compilation warnings.
780    o pkg/profiles:
781      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
782      (for "less than 32 characters name" compiler requirement)
783    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
784      conditions that have a different sampling frequency than S/T/U/V obcs
785    o pkg/diagnostics (stats-diags):
786      - fix global Min/Max in case 1 processor get only empty tiles
787    o genmake2: replace (4 times)
788         make genmake_tc_1.o >> genmake_warnings 2>&1
789      with
790         COMM="$CC $CFLAGS -c genmake_tc_1.c"
791         echo $COMM >> genmake_warnings
792         $COMM >> genmake_warnings 2>&1
793      to make genmake2 always see the value of CC as specified in the optfile.
794    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
795      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
796      - modify verification advect_cs test to test SOM-advection on CS-grid.
797    o pkg/ctrl:
798      - Rewrite of ctrl_map_ini_ecco.F,
799        introducing a generic routine (ctrl_map_ini_gen.F).
800      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
801    
802    checkpoint59n
803    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
804      number in dedicate array "hdiag":
805      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
806        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
807      - many small changes (integer format) for large number of diagnostics
808      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
809        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
810    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
811      usingSphericalGrid, this allows to define the rotated grid coordinates
812      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
813      geographical coordinates according to the inverse of the rotation defined
814      by the Euler angles, so that Coriolis parameter and online-interpolation by
815      exf works with the geographical coordinates on XC/YC/XG/YG.
816      Naturally, this feature does not work with all packages, so some
817      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
818      profiles), because there the coordinates are assumed to be regular
819      spherical grid coordinates.
820    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
821      - introduce isopycnal diffusion coefficient control.
822    o tools/adjoint_options:
823      - additional control vector components.
824    o pkg/mnc: have mnc create marginally meaning full coordinate variables
825      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
826    o pkg/mypackage:
827      - add example of read/write pickup for state-var ;
828      - add entry points to the main code for state-vars diags & write-pickup.
829    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
830      transitions for useExfYearlyFields
831      - add new subroutine that determines the file to read from for
832        use*YearlyFields = .TRUE. and .FALSE.
833      - add a verification experiment to global_with_exf that tests
834        useExfYearlyFields with USE_EXF_INTERPOLATION defined
835    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
836      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
837      subroutines (which could be generated from a template, because they are
838      almost identical), for now they are included in obcs_prescribe_read.F for
839      simplicity
840    o pkg/exf:
841      - add a little more diagnostic to exf_interp_read (in analogy to
842        mds_read_field, can be turned off with debugLevel < debugLevA=1)
843      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
844        ugly but fast by unrolling short inner loops, inserting a unroll=8
845        directive in routine lagran, and splitting a loop and making do while the
846        outermost loop (the latter requires the intoduction of index arrays)
847    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
848    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
849      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
850    o verification/seaice_obcs: updated for restart test and latest options
851    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
852      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
853      for now this is only available for the C-grid code and also within
854      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
855    
856    checkpoint59m
857    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
858      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
859    o gad_som : fix flux output (& diagnostics) to have same units as other  
860      advection scheme fluxes (was previously multiplied by deltaT).  
861    o added verification/seaice_obcs both to test seaice open boundaries
862      and to provide an example matlab scrpt for generating them
863    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
864    o pkg/salt_plume: clean up salt_plume_frac.F to
865      remove redundancy in PlumeMethod 1 and 4
866    o pkg/kpp: added saltplume diagnostics
867    o pkg/obcs and pkg/seaice:
868      - do not set uice and vice to zero when OB*icefile are unspecified
869      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
870      - moved seaice tracer obcs after call to seaice_growth
871    o pkg/salt_plume: added various options for salt plume depth
872      criterion and for vertical distribution of the salt
873    
874    checkpoint59l
875    o pkg/ptracers: new version of ptracers pickup:
876      read meta file and write only fields which are needed to restart.
877      ( same logic as main pickup file ; also using pickupStrictlyMatch )
878    o pkg/seaice:
879      - add timescale for melting due to warm mixed layer as a means of
880        setting SEAICE_availHeatFrac more conveniently
881      - add a CPP-flag/runtime parameter check for flooding algorithm
882      - reformulated availHeat in seaice_growth.F to be independent of AREA
883    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
884      unit changes
885    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
886    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
887      SX vector computer.
888    o pkg/seaice:
889      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
890        seaice forcing fields can now be read only through pkg/exf
891      - removed some unused halos
892    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
893    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
894      or U/VICE from U/VWIND before computing U/VSTRESS
895    
896    checkpoint59k
897    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
898      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
899    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
900      all experiments pass when compile with un-initialised var. checking option.
901    o added pkg/salt_plume
902    o script to test restart (for now, in MITgcm_contrib/jmc_script)
903    o pkg/seaice: new read/write pickup version.
904      read meta file and write only fields which are needed to restart.
905      ( same logic as main pickup file ; also using pickupStrictlyMatch )
906    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
907    o lab_sea.hb87: modify the domain & update output.hb87.txt :
908      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
909      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
910      process. Fixed here by closing the domain at the Northern boundary.
911    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
912    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
913      a set of consecutive levels in/from a 3-D array.
914    o pkg/ptracers:
915      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
916      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
917    
918    checkpoint59j
919    o in pkgs: dic, obcs, offline, rbcs:
920      standard way to compute coeff. for time interpolation between 2 time reccords
921      which retains full precision (& make results less dependent on compiler).
922      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
923    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
924      packages instead of reading ice cover and wind speed separately
925    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
926     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
927      to allow to compile customized code before the update)
928    o cleaning-up:
929      - fix CPP instruction syntax in pkg/obcs
930      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
931        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
932      - fix some threads issue in IO parts.
933    o pkg/dic:
934      - add tons of "_d 0" (--> much better testreports !)
935       and then update outputs of tutorial_global_oce_biogeo
936    o pkg/mom_fluxform:
937      add a special version of momentum advection intended to conserve momentum
938      next to a bathymetry step or a coastline edge. (default = off = #undef)
939    o new read/write pickup version:
940      - for now, only implemented for main (mdsio) pickup file.
941      - write out only what is needed to restart; merge pickup_nh , pickup_ph
942        and main pickup together.
943      - read meta file; read only what is needed to restart; stop if a field
944        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
945        if it make sense (even if the restart is not perfect).
946      - if no meta file, assume that pickup to read corresponds exactly to
947        a pickup that would currently be written.
948      - read pickup written in the old format (until checkpoint59i) if it
949        recognizes an old meta file (no field-list).
950      - add a meta file in exp. which starts from a pickup: 2 cases:
951        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
952         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
953        b) a meta file describing the content of the associated pickup file
954         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
955    o pkg/mdsio & pkg/rw:
956      - new routine to read a meta file ; new set of routine to read
957        Multiple-fields file (with meta file).
958    o added open boundary conditions capability for seaice
959        HSNOW, HSALT, UICE, and VICE
960    
961    checkpoint59i
962    o adjoint:
963      * fix multiDimAdvection adjoint
964        (partial recomputation problem by TAF for fVerT(:,:,kDown)
965        and comlev1 size definition (maxpass vs. max. number of tracers)
966      * verification/global_ocean.90x45x15 adjoint now tests
967        NLFS and multiDimAdvection using DST3 (=30)
968      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
969    o pkg/kpp: add "_d 0" to real constant (if missing);
970      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
971      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
972    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
973      for internal parameters related to restart process (formerly from PARAMS.h)
974      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
975    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
976      as argument. (only atm2d & obcs write_pickup have not yet been updated)
977    o pkg/monitor:
978      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
979      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
980      - account for deep Atmosphere factor and density factor (anelastic)
981    o added open boundary conditions capability for seaice HEFF and AREA
982    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
983      thermodynamics
984      - requires a little reorganization, which affects the testreport results
985        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
986        so that now the conservative form is tested
987      - add a few comments
988    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
989    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
990    o add new diagnostics to seaice: advective, diffusive fluxes (only for
991      multidim-advection, for scheme 2 they are not filled) and transports,
992      thermodynamic growth rates
993    o change units of EmPmR (inside the code, + within coupling interface)
994      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
995      Affects results @ truncation level (cg2d match) and update output of
996       experiments: lab_sea(6), global_ocean.90x40x15(10),
997      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
998      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
999      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1000      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1001    
1002    checkpoint59h
1003    o pkg/exf:
1004      - improve vectorization by moving if-statement out of loops in
1005        exf_mapfields, exf_radiation
1006      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1007    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1008    o testreport:
1009      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1010        monitor & update offline_exf_seaice exp. output.
1011      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1012    o pkg/seaice:
1013      - bug fix in the evp solver: boundary conditions were affected be
1014        masking of zMax/zMin (changes results)
1015      - minor bug fix in boundary conditions in seaice_calc_strainrates
1016        (changes results for no_slip)
1017      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1018      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1019      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1020        stress formulation and no-slip boundary conditions
1021    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1022      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1023    o pkg/seaice: a first HSALT time stepping equation has been checked in
1024    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1025      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1026      without requiring DO-IF statements
1027    o pkg/thsice:
1028      use continuous power-law function for partition of energy between lateral
1029      melting/freezing and thinning/thickening ; old code using step function
1030      still available with #undef THSICE_FRACEN_POWERLAW
1031      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1032    o testreport: change AD testing : check against results/output_adm.txt
1033      using same scripts as for forward test.
1034    
1035    checkpoint59g
1036    o adjoint testing: in preparation for changing testreport:
1037      - output format: cost and grad written on separated lines
1038      - ad output results in directory "results" (instead of "results_ad")
1039    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1040    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1041    o pkg/ecco: allow user defined cost function contributions
1042    o testreport:
1043      Allow to choose (per experiment) the list of tested output variables
1044       and the main variable (used to issue a pass/FAIL ) ;
1045      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1046      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1047      Also modify printing of summary:
1048       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1049       b) echo the list of tested variables in the individual summary.txt of
1050          each experiment.
1051    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1052      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1053      (but still depend on the tile decompostion of the domain).
1054    o pkg/seaice: change a discretization detail to make the B-grid code
1055      "more symmetric". This change is likely to remove all "ridges/leads" that
1056      where quasi-aligned with the grid in B-grid solutions. It may also be
1057      the solution to the stress coupling issues with the B-grid.
1058    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1059      remove .cvsignore from input dir. (since testreport no longer run here).
1060    o pkg/thsice:
1061     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1062     - fix reshaping of sea-ice just after advection:
1063       melt all the ice only if ice-volume is too small.
1064     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1065       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1066     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1067    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1068      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1069    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1070      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1071      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1072      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1073      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1074      -> update output.txt
1075    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1076     this affects truncation error: -> update output.txt of exp:
1077      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1078      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1079    
1080    checkpoint59f
1081    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1082    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1083      a bounded range (in forward mode)
1084    o pkg/ecco, ctrl, autodiff and mom_common:
1085     internal parameter controls, completements of implementations
1086    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1087    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1088      (not seem any difference in testing results).
1089    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1090       at face corners.
1091    o pkg/generic_advdiff:
1092     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1093      loop range indices for computing vertical advection tendency
1094      and do the calculation in the interior only (no overlap) ;
1095      for now, only implemented for SOM advection (to save CPU time).
1096     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1097    o exch2 adjoint
1098      First set of changes:
1099      - add exch2 hand-written adjoint templates
1100      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1101        This will require cleanup in pkg/autodiff/*.F
1102        (changed routines currently kept separate in verif. code/)
1103      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1104        that used to hide exch2 or cubed-sphere specific code
1105        (commented via 'cph-exch2')
1106    o pkg/seaice
1107      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1108    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1109       output of global_ocean.cs32x15.thsice .
1110    
1111    checkpoint59e
1112    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1113      for B-grid vector (not yet tested) and C-grid vector (<- only used
1114      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1115    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1116      (#ifdef ALLOW_SALT_PLUME)
1117    o gather_2d/scatter_2d: removed halo regions
1118    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1119      scheme and the corresponding test case (under front_relax dir). For now,
1120      only available with Skew-flux form and not yet tested in realistic set-up.
1121      adjoint: store directives updated, but gradient checks deteriorated,
1122      so maybe GM/Redi adjoint is now broken.
1123    o seaice adjoint
1124      * add AREA, HEFF, HSNOW as control variable
1125        (should not change lab_sea results)
1126      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1127    o pkg/seaice:
1128      * added computation of saltFlux in seaice_growth;
1129        For time being, sea ice salinity is assumed constant
1130        contribution of snow flooding to freshening of sea ice is neglected.
1131        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1132        defaults to 0.0 in order to maintain backward compatibility.
1133        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1134      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1135      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1136        heat content used to melt or grow ice
1137      * commented out cap of HICE: it helps keep ice thinner
1138      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1139      * applied OBCS T/S mask to HEFFM sea ice mask
1140    
1141    checkpoint59d
1142    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1143     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1144     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1145    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1146     and change default value of parameter "GM_Small_Number";
1147     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1148       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1149       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1150    o pkg/ecco: cost function when applying pkg/smooth to controls
1151    o pkg/ctrl: add forcingPrecond run time parameter
1152    o pkg/seaice:
1153     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1154     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1155       changes verification/lab_sea
1156     - rearrange implicit part of u-equation in LSR solver to make it easier to
1157       read, understand, and debug. This causes changes at the truncation level.
1158     - fix (serious) bug in the boundary conditions (sign error in the implicit
1159       part) of the LSR solver. Changes all LSR results.
1160     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1161       is initilized with small values - does not change lab_sea results.
1162     - added HsnowFile initialization capability
1163    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1164     initialization of pkg/smooth and application to control vector
1165    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1166    o dependencies: pkg/profiles requires pkg/cal
1167    o pkg/profiles:
1168     - added option ALLOW_PROFILES_GENERICGRID
1169         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1170         that interpolation information (grid points and coefficients) is provided
1171         within the netcdf input files.
1172         -> sample matlab scripts can be found in MITgcm_contrib/gael
1173         that allow you to prepare netcdf input files.
1174     - also modified: cleaner include statements, cleaner error print statements,
1175       cleaner stops when error, and more tests of the netcdf input files consistency.
1176    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1177    o pkg/seaice:
1178     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1179       requires a new routine: seaice_diagnostics_fill.F
1180     - make sure that seaice does not move if not forced (pressure replacement
1181       method, Hibler and Ip, 1995), changes results
1182     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1183     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1184       It is turned off by default (=-1.), because it changes the results.
1185     - make it possible to read AREA from a file, too.
1186    
1187    checkpoint59c
1188    o add S/R and diagnostics for oceanic mixed-layer depth
1189    o move GMRedi call after all vertical mixing schemes (including KPP)
1190    o pkg/thsice:
1191     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1192      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1193    o pkg/obcs:
1194     - bug fix for balance code
1195    o pkg/seaice:
1196      - allow values of SEAICE_elasticParm > 1
1197      - add new parameter SEAICE_evpTauRelax as an alternative
1198        to SEAICE_elasticParm
1199      - make lsr boundary conditions free slip (by default), changes result
1200      - add code for no slip boundary conditions for lsr
1201      - set minimum of zeta to zero (and not 4e8) (changes results)
1202      - add a cap on AREA after advecting AREA if seaice_growth is not called
1203    o change calculation of Visbeck K:
1204      - no longer depend on tapering scheme; instead, compute slope (limited
1205        by GM_maxSlope). this is equivalent to what was comuted before with
1206        clipping or linear tappering.
1207      - fix vertical averaging (wrong by 1/2 level)
1208      - leave the old version (but will not be maintained) within
1209        #ifdef OLD_VISBECK_CALC / #endif
1210      - update output of exp. ideal_2D_oce
1211    o change error catch in calc_r_star to improve vectorization
1212    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1213      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1214    o adjoint:
1215      Re-organized adjoint checkpointing according to Matt Mazloff
1216      (but with modifs/completions/cleanups)
1217      Storing is now bundled into large arrays to optimized I/O
1218      (and second step in cleanup of the_main_loop)
1219    
1220    checkpoint59b
1221    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1222      - export/import (between ocean & coupler) fields needed for ocean DIC.
1223    o pkg/seaice:
1224      - get rid of three more exchanges seaice_calc_viscosities (required
1225        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1226      - bug fix in seaice_ocean_stress (update of lab_sea required)
1227      - reduce loop boundaries to necessary minimum also in seaice_evp
1228      - go back to the old way of computing deltaC/Z as the adjoint likes that
1229        better
1230    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1231      passive tracer to an Age Tracer) + update output.txt
1232    o pkg/exf:
1233      - implement A-grid / C-grid selection for wind-stress input files.
1234      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1235      for now, in exf_bulk_largeyeager04.F only :
1236      - change implementation for case where windspeed + 2. components wind-stress
1237        are read-in. AND use rhoConstFresh to convert evap.
1238    o pkg/seaice:
1239      - use correct EXCH_UV for wind-forcing (on A-grid).
1240      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1241        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1242    o pkg/exf:
1243      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1244      EXF_INTERPOLATION:
1245      - merge global_with_exf/code version of exf_interp_read.F
1246        to the main code ;
1247      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1248        reading the file ; Important: This options needs to be defined to recover
1249        previous code.
1250        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1251      - no longer loose real*8 precision along the way when using exf_iprec=64.
1252    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1253      - change discretisation of evp-solver in order to avoid another exchange
1254        (changes lab_sea) and clean up a little
1255      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1256        help the adjoint (this also changes the results slightly)
1257      - add a few "_d 0" where they had been missing in seaice_evp.F
1258      - cleaning up: remove unused seaice_calc_rhs.F
1259    o pkg/exf: some cleaning-up:
1260      - change various "constants" into runtime parameters
1261      - cleaned-up Large&Yeager04 routine which should eventually
1262        replace exf_bulkformulae.F (changed names of S/R and CPP)
1263        and merged various ALLOW_ATM_WIND options
1264     only used with thsice pkg (in thsice_get_exf.F):
1265      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1266        which are used when useStabilityFct_overIce=TRUE (= the default)
1267      - change default values of ice & snow emissivity and scale downward LW
1268        by ice & snow emissivity.
1269    o pkg/thsice:
1270     fix few little problems, in thsice_calc_thickn.F:
1271      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1272      - melt only laterally if hIce < hThinIce (as the comments say)
1273      and in thsice_extend.F:
1274      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1275      - start to form ice as soon as the minimum ice-volume is reachable.
1276     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1277      and cpl_aim+ocn
1278    o pkg/kpp
1279     - move computation of surface related input fields to KPP into a new
1280       subroutine kpp_forcing_surf.F
1281     - remove wrong (within bi,bj loops) EXCH calls.
1282     - little cleaning (add argument myThid in last position, cvs header ...)
1283     - for now, fix conservation problem by exchanging KPPviscAz (may not
1284       be the best fix)
1285    o pkg/seaice
1286     - check for inconsistent evp parameter/cpp-flag combination
1287     - remove leftover errIO flat for obsolete name list error handling
1288    o OpenAD
1289     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1290    
1291    checkpoint59a
1292    o pkg/seaice: some parameter clarifications and a little bit of clean up
1293    o pkg/thsice: rename run-time parameters:
1294       himin       -> hIceMin
1295       himin0      -> hThinIce
1296       hihig       -> hThickIce
1297       i0          -> i0swFrac
1298       transCoef   -> bMeltCoef
1299       frac_energy -> fracMelting
1300      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1301       with default values (for now) that do not change the results.
1302      remove old version of thsice vars advection in pkg/seaice.
1303    o in FFIELDS.h:
1304      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1305      - make pLoad & sIceLoad always available (but still only used if
1306         ATMOSPHERIC_LOADING is #define).
1307    o pkg/kpp: replaced _KPP_RL with _RL
1308    o bug fixes for vertical diffusivity computations when both KPP and
1309        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1310        are no longer updating the vertical diffusivity array
1311        (passed as argument) but are (re-) setting those arrays.
1312    o pkg/seaice: fix bug in evp solver, while doing that
1313      - change (improve?) discretization of stress computations for both
1314        cgrid-lsr and evp solver
1315      - add a new routine to compute strain rates
1316      - the above changes lab_sea results
1317      - add no slip conditions for evp solver (off by default), lsr-version
1318        may follow
1319      - fix exchange for shear at Z-points (does not change lab_sea)
1320      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1321        (to force the user to pick a time step since there is not "safe" way
1322        of choosing it)
1323      - add principal stress diagnostics
1324      - rearrange fields for evp a little to avoid having to call a: too many
1325        exchanges and b: exchanges for stress trensor components which we do
1326        not have.
1327      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1328        of evp, complete rewrite for lsr case (latter is does not yet work
1329        in all cases)
1330    o pkg/kpp: add code to have mixing in shelf ice caverns
1331      - add myThid to all kpp routines (long overdue)
1332    
1333    checkpoint59
1334    o pkg/exf:
1335      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1336        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1337      - move exf header files from lower_case.h to UPPER_CASE.h ;
1338        add missing cvs Header & Name
1339      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1340      - add namelist param. selectStressGridPosition, exf_monFreq
1341      - retire many _CLIM routines, and remove data.exf_clim
1342        + params moved to data.exf
1343        + climsst, climsss now handled by exf_set_gen, i.e.
1344          climss?period=0 refers to constant field,
1345          climss?period=-12 to monthly forcing
1346      - split up namelists in data.exf
1347    o pkg/seaice:
1348      - remove seaice_exch and seaice_exch_uv
1349      - remove superfluous exchange of theta
1350      - add myThid to seaice_budget_ocean/ice
1351      - add new interface for atmospheric wind forcing (C-grid only)
1352        + new routine
1353        + two new field (taux, tauy for stress over ice)
1354        + removed one global field (DAIRN) for C-grid case only
1355    o pkg/thsise
1356      - 2nd set of modifs for thsice adjoint in conjunction with exf
1357    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1358    
1359    checkpoint58y_post
1360    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1361      vertical diffusivity, similar to that in MOM4; turned on using
1362      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1363      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1364    o Added capability for 3D specification of background vertical diffusion
1365      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1366      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1367      "data" file that contains the 3D vertical diffusivity coefficients.
1368    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1369      - add code within pkg thsice to advect & diffuse sea-ice fields
1370      similar to (and will replace) what has been added in  seaice_advdiff.F,
1371      but: - conserving Mass, Heat & Salt.
1372           - better when using non-linear advection scheme (not yet fully tested)
1373           - can also be used in atmospheric set-up (for now, only the diffusion).
1374    
1375    checkpoint58x_post
1376    o IO option for global-file compact format:
1377      - add options when generating topology (utils/exch2/matlab-topology-generator)
1378      - add I/O capability (pkg/mdsio).
1379      - adapt utils/matlab/rdmds.m to read this format.
1380      for now long-line format not yet supported by pkg/mdsio (& exch2).
1381    o shelfice: add a few diagnostics
1382    
1383    checkpoint58w_post
1384    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1385      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1386      (and replace horiVertRatio in NH code).
1387      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1388                         and tutorial_plume_on_slope (sensitive to truncation)
1389    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1390      directly to drive seaice model (C-grid only)
1391    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1392     - reintroduce computation of wind from stress,
1393     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1394       mass points to avoid tau = 0
1395     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1396    o rdmnc.m: make it work with "global" files created with gluemnc
1397    o rdmnc.m : some improvements in dealing with singleton dimension
1398      (tested on all testreport mnc output files).
1399    o genmake2: disable pkg/profiles if netcdf test fails.
1400    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1401    o move call to cal_readparms up to make calendar parameters/variable available
1402      to all packages
1403    
1404    checkpoint58v_post
1405    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1406      useDynP_inEos_Zc tested.
1407    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1408    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1409      and portions thereof.  See read_cs.txt for description and examples.
1410    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1411      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1412      following the great-circle arc between those 2 points.
1413    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1414      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1415    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1416     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1417     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1418     - still needs work (not working with some options ; efficiency to improve)
1419       and serious testing.
1420     - use this scheme for temperature & salinity in 2 advection test exp.:
1421       advect_xy & advect_xz, respectively.
1422    
1423    checkpoint58u_post
1424    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1425    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1426    o testreport: add option "-skipdir" to skip some test.
1427    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1428      momentum calculation.
1429    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1430    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1431      remove checkpoint.F and the_correction_step.F (no longer used);
1432      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1433    o add option (linFSConserveTr) to correct for tracer source/sink due to
1434      Linear Free surface
1435    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1436    o pkg/thsice: fix reading mnc-pickups
1437    
1438    checkpoint58t_post
1439    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1440    o pkg/mdsio:
1441     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1442       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1443       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1444     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1445     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1446       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1447     - new S/R (to replace MDSWRITEMETA), which allows to write more
1448       informations (variable names, time ...) to meta files.
1449     - modify rdmds.m to give back the meta file content.
1450    o pkg/diagnostics: change vertical interpolation to be safer, and more
1451       flexible (define p-levels to interpolate to in data.diagnostics);
1452      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1453       diagnostic pointer.
1454    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1455    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1456    o fix multi-category seaice:
1457     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1458       SEAICE_MULTICATEGORY
1459     - fix short wave heat flux
1460    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1461       and allow to use EVP solver. Change forward lab_sea: test both EVP
1462       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1463    o Initial check-in of lab_sea adjoint
1464      (very similar to natl_box_adjoint/code_seaice)
1465      * used C-grid and EVP solver
1466      * used KPP, GM/Redi
1467      * uses inAdExact=.TRUE.
1468      * gradient checks fail for both ADM and TLM
1469        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1470        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1471        issue is related to forward mismatch between g77 an ifort
1472    o pkg/seaice: overhaul of thermodynamics
1473     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1474     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1475     - move a few global fields out of SEAICE.h into seaice_growth.F and
1476       make them 2D (FICE/QNETO/ ...)
1477     - remove FO (it is the same as QNETO)
1478     - introduce a few local fields to avoid modifying external fields such
1479       as atemp, etc.
1480    
1481    checkpoint58s_post
1482    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1483      changed exf_set_gen.F so that
1484        genperiod=0 means input file is one time-constant field and
1485        genperiod=-12 means input file contains 12 monthly means
1486    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1487      this affects truncation error ; generate new output file for exp. which
1488      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1489        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1490        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1491        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1492        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1493        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1494    o start implementation of deep-atmosphere and anelastic formulation
1495    o verification: remove 2nd copy of input files and use script "prepare_run"
1496      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1497    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1498    o profiles: fix for multithreaded case
1499    
1500    o diagnostics: rename few diags:
1501      s/'PRESSURE'/'RCENTER '/g
1502      s/'TICE    '/'oceFreez'/g
1503      s/'TAUX    '/'oceTAUX '/g
1504      s/'TAUY    '/'oceTAUY '/g
1505      s/'SWFLUX  '/'oceQsw  '/g
1506      s/DIFx/DFxE/g
1507      s/DIFy/DFyE/g
1508      and add few ocean-forcing diagnostics:
1509      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1510    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1511      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1512      as actual snow thickness.  It now refers everywhere to effective snow
1513      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1514    
1515    checkpoint58r_post
1516    o modifications to pkg/seaice/growth.F, which change results of
1517      lab_sea experiment: fixes pertain to melting snow over open water, to
1518      masking EVAP under sea ice, and to using the correct AREA variable for
1519      computations of EVAP, PRECIP, HSNOW, and GHEFF
1520    o add ability to read bathy, salt, and theta using MNC (off by def)
1521    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1522      both are turned off by default and do no change any results
1523    o seaice advection with pkg/thsice: a step toward the use of non-linear
1524      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1525    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1526      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1527      in natl_box (affects results @ truncation level: update output.txt)
1528    o multi-threading and IO:
1529      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1530      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1531        (needed to work with SingleCpuIO): tested in all verif. exp.
1532    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1533      affects the results (but none of the verification test uses this scheme).
1534    o Adding some pkg/diagnostics capability to pkg/seaice
1535      (will certainly be subject to changes)
1536    o ctrl: adding new control variables:
1537      lwflux, lwdown, evap, snowprecip, apressure, runoff
1538    
1539    checkpoint58q_post
1540    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1541      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1542      high_res_cube configuration by 4% on Columbia.
1543    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1544      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1545      dynamical allocation (seems to work in multi-threaded).
1546    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1547      single CPU io) so that TAF does not have to see EESUPPORT.h
1548    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1549    
1550    checkpoint58p_post
1551    o obcs: stop if obcs is used with useCDscheme = .true.
1552    o shelfice:
1553     - fix a sign error so that no slip at shelfice interface works
1554     - remove stop for combination non-hydrostatic code and shelfice. That does
1555       not mean, that the results are correct, but at least they are numerically
1556       stable
1557    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1558    o added adjoint exch routined for all exch*3d* routines
1559      and updated flow directives
1560    
1561    checkpoint58o_post
1562    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1563      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1564    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1565      and clean-up reading/writing of pickup files.
1566    o fix local version of read/write pickup (NH part) in rotating_tank/code
1567    o simplify EXCH interface:
1568     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1569     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1570    o added the regrid package
1571    o shelfice:
1572     - add a simple boundary layer scheme to reduce noise
1573     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1574    
1575    checkpoint58n_post
1576    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1577       local variable (not in common block).
1578    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1579      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1580      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1581        to work with SingleCpuIO.
1582    o add "_d 0" to real constant of pkg/cfc subroutines ;
1583       update exp. cfc_exemple & tutorial_cfc_offline output files.
1584    o multi-threading and IO:
1585      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1586        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1587      - barrier before and after reading.
1588      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1589      - avoid using MDS_WRITELOCAL for LAND pkg output.
1590      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1591        common-block variables ; Allows multi-threading with master-thread IO.
1592    o change default MAX_NO_THREADS from 32 to 4 ;
1593      and stop cleanly when MAX_NO_THREADS is too small.
1594    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1595    
1596    checkpoint58m_post
1597    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1598       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1599    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1600       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1601       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1602    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1603        add MITgcm_tutorials (= code + all the tutorials)
1604    o ecco, option to compute cost for total ssh (mean+anom)
1605    o consistent with addition of ptracer and ssh in pkg/profiles
1606    o profiles: adding ptracer and ssh
1607    o testreport: change multi-test output-file name
1608      (from output.txt.{name} to output.{name}.txt)
1609    o profiles: now ok for mutli-tiles case
1610    o seaice: add 4 parameters for different advection schemes for area,
1611      (effective) seaice thickness, enthalphy, and snow height. Their default
1612      is the standard parameter SEAICEadvScheme
1613    o calc_gw:
1614     - add cosFacU in zonal viscous flux (harmonic.visc.).
1615     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1616       of tutorial_plume_on_slope.
1617    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1618    o calc_gw: true flux-form, account for horizontal grid spacing.
1619      update rotating_tank results, but not plume_on_slope (affected at
1620      truncation level, 11 digits).
1621    
1622    checkpoint58l_post
1623    o calc_gw:
1624     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1625     - remove side-drag for now (need to fix it); update plume_on_slope results.
1626     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1627    o commit code to make SST/SSS weights spatially variable
1628      (based on either variable in-situ or variable initial T/S weights)
1629    o pkg/ecco:
1630      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1631        now based on horizontally varying weights wthetaLev, wsaltLev
1632      * cost_averagesflags now returns year indices in addition to day, month
1633      * sflux balance is performed on annual basis
1634        (sflxumm, sfluxmm2, bal_sfluxmm)
1635      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1636        including separate counting and multipliers
1637    o pkg/rbcs
1638      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1639    
1640    checkpoint58k_post
1641    o testreport:
1642     - always build in dir. "build" (if not there, mkdir build instead of building
1643       & running in input)
1644     - run in dir run (if it exists), in build otherwise.
1645     - call prepare_run (if input/prepare_run exists)
1646     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1647    o pkg/exf modifications to interpolation and rotation routines for more
1648       reasonable treatment of North Pole singularity: for tracers North Pole
1649       value is set to northernmost zonal-mean value, for zonal velocity it is
1650       set to zero, and for meridional velocity it is set to northernmost value.
1651    o pkg/exf/exf_check_range.F
1652     - add tile index to diagnostics and move stop statement to the very
1653       end of the routine.
1654    o pkg/diagnostics: (diagnostics_main_init.F)
1655      define title of isomorphic variables according to the current config.
1656    o pkg/thsice with pkg/seaice dynamics:
1657    - fix domain of computation (interior only, required for exf) and do exchanges
1658    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1659    o towards a standard way of dealing with multi-threading in MONITOR
1660      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1661    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1662       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1663    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1664    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1665    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1666       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1667    o tracer advection:
1668     - clean-up and simplify calc_common_factors.F
1669     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1670       advection subroutine (but still not used within DST advection S/R)
1671    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1672    
1673    checkpoint58j_post
1674    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1675      from file (collects calls previously in FORWARD_STEP)
1676    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1677    o adjoint store dir. adjusted accordingly
1678    o genmake2
1679      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1680    
1681    checkpoint58i_post
1682    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1683      on wind stress (SEAICEstressFactor defaults to 1.)
1684    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1685      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1686    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1687      on CS-grid: no longer loosing mass.
1688    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1689    o pkg/ggl90: fix sloppy output and fix a bug
1690    o pkg/seaice: added SEAICEuseEVPpickup parameter
1691      - Set to false in order to start EVP solver with
1692        non-EVP pickup files when using SEAICEuseEVP
1693      - fix sign error in diffusion in seaice_calc_rhs
1694    
1695    checkpoint58h_post
1696    * Modifications for bottom topography control
1697      o replace hFacC by _hFacC at various places
1698      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1699      o add non-self-adjoint cg2d_nsa
1700      o update autodiff support routines
1701      o re-initialise hfac after ctrl_depth_ini
1702      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1703    * Adding verification for 5x5 box (4-layer) bottom topography control
1704    
1705    checkpoint58g_post
1706    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1707       used for mean seasonal cycle, mean diurnal cycle); add an example
1708       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1709    o pkg/ggl90:
1710      - add parameter (minimum surface kinetic energy)
1711      - fix bug (avoiding division by zero)
1712    o couple pkg/thsice to pkg/seaice:
1713      - modify advection in seaice to accomodate new scalar fields to be advected
1714      - only muliDimAdection scheme work with seaice/thsice
1715      - mapping of thsice-variables to seaice-variables, back and forth
1716      - does not break the verification experiments, but does not give the
1717        desired results either
1718    o pkg/seaice
1719      - make (default) second order advection a bit less confusing?
1720    
1721    checkpoint58f_post
1722    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1723      to pkg/seaice):
1724      - new routines thsice_map_exf and thsice_get_exf provide the interface
1725      - add an additional formal parameter to thsice_solve4temp
1726    o pkg/exf:
1727      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1728      - correct Stefan-Boltzmann constant
1729      - new parameter for longwave surface emittance
1730      - separate some stuff from exf_bulkformulae into new routines  
1731        exf_radiation, exf_wind
1732      - add new parameters and constants: longwave emissivity for ocean, ice
1733        and snow, evaporation parameters over ice
1734      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1735        either wind from stress or stress from wind
1736    o pkg/thSIce:
1737    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1738    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1739       and THSICE_CALC_THICKN
1740    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1741    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1742      to make debugging easier.
1743    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1744    o pkg/bulk_force:
1745      - clean-up comments and parameters ;
1746      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1747    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1748      generate new output for test-experiment: aim.5l_cs.thSI
1749    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1750      testreport accordingly
1751    
1752    checkpoint58e_post
1753    o SEAICE_CGRID adjoint done
1754    o R_STAR adjoint implemented.
1755      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1756      * need to sort out init. of h0facc, etc.
1757    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1758      to be able to use it in pure forward.
1759    
1760    checkpoint58d_post
1761    o upgrade simple test-experiment to tutorial example:
1762     step.1: duplicate the experiment and (step.2) will remove the old copy.
1763      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1764      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1765      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1766      tutorial_global_oce_biogeo    <- copy of dic_example
1767      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1768      tutorial_plume_on_slope       <- copy of plume_on_slope
1769      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1770      tutorial_global_oce_optim     <- empty for now (David ?)
1771      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1772     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1773    o correct a sign problem in cost_scat.F
1774    o obcs and ptracers: fix boundary conditions for advections schemes
1775      with larger stencil
1776    o thsice adjoint: start
1777    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1778      completeness
1779    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1780      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1781    o ptracers adjoint:
1782      * avoid extensive recomputatations
1783      * fix missing re-init. of gptr (missed by TAF)
1784    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1785      me to turn off the excessive output to STDOUT that this package produces
1786    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1787      and add those terms in Vector-Invariant formulation.
1788    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1789      if the control period (xx_hfluxperiod etc) is 0
1790    o in profiles pkg, clean routines and fix details
1791    o in ecco pkg, reading ssh data:
1792      fix problem in case the model does not start at iter0=0
1793    o fix mnc-pickup/restart for ptracers
1794    o new package prifiles:
1795      code to compute profile-based cost by Gael Forget
1796      (modifs in ecco, ctrl, autodiff)
1797    o Benign bug fix in initialization (spotted by M. Mazloff) of
1798      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1799    
1800    checkpoint58c_post
1801    o adjoint: finish NLFS adjoint and provide reference output in
1802      verification/global_ocean.90x40x15/results_ad_nlfs
1803    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1804      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1805      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1806      with SEAICE_CGRID defined.
1807    o move calendarDumps from "data" to "data.cal" and clean-up the code
1808      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1809    o add useEXF & useCAL flags (for now, set in hard-coded way)
1810    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1811      (were missing in NH mode, and wrong in quasihydrostatic mode).
1812      waiting for Chris updated version of calc_gw to add those CALLs.
1813    o fix bug in quasihydrostatic S/R ;
1814      add a test for this option: global_ocean.90x40x15.qshyd
1815    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1816      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1817    o add on/off flag useOffLine for package OFFLINE
1818    o seaice:
1819      - modify advection so that it works also on the C-grid
1820      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1821        problem in multi-tile runs with C-grid
1822      - add flags for clipping ice velocities and/or masking solver forcing
1823      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1824        C-grid solver
1825      - added a few comments to seaice_diffusion.F
1826      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1827        are now exclusive)
1828      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1829        required re-ordering the code a little:
1830       + make DAIRN global variable (defined in SEAICE)
1831       + move computation of the viscosities eta and zeta into a new separate
1832         routine (because I need to recompute them in seaice_ocean_stress.F)
1833    
1834    checkpoint58b_post
1835    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1836      update output.txt of exp. aim.5l_cs.thSI
1837    o various mnc cleanups and improvements:
1838      + shrink lookup tables by factor of ~4
1839      + better error reporting when running out of lookup space
1840      + able to handle longer path/file names (up to 500 chars)
1841    o adjoint:
1842      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1843      - TBD: "hidden" mom_vecinv recomp. in dynamics
1844    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1845     (allow to differentiate between forcing components using new integer flags:
1846      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1847     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1848    o ecco
1849      - enable trend removal from SSH anomaly obs.
1850    o adjoint
1851      - a fix for PmEpR when #undef EXACT_CONSERV
1852      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1853      - try to fix "hidden" recomp. in forward_step for NLFS
1854        (NLFS seems broken sometimes after I checked it in)
1855    o seaice:
1856     - add c-grid version of the dynamic solver:
1857       + three new routines that are the c-grid substitute lsr, dynsolver
1858         and ostres
1859       + put a few fields that were local to dynsolver into global common
1860         blocks, so that I can move the computation of stresses etc into
1861         seaice_lsr (saves coding but may break the adjoint).
1862     - replace more hardwired parameters by runtime parameters
1863     - add ice masks that mask the rhs of the implicit solvers where there
1864       is no ice (commented out in seaice_dynsolver, because i am not sure
1865       if this works properly), eventually this should replace the clipping
1866       of ice velocities in seaice_dynsolver to +/-40cm/s.
1867    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1868      include it only where its needed
1869    o move balancing of fluxes before the call of external_forcing_surf
1870    o seaice:
1871      - correct units of turning angles (now they are really in degrees)
1872      - move computation of GWATX/Y out of main routine into dynsolver
1873      - initialize GWATX/Y in seaice_init
1874    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1875      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1876    o seaice: add runtime flags for turning angles (default to zero)
1877    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1878      and trend from exf forcing and ctrl control adjustments
1879    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1880      (since checkpoint57x_post)
1881    o change the default rotation period to 86164.s = the Earth rotation
1882    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1883      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1884    o seaice advection: add code for choosing between the default (2nd order
1885      central differences) and multiDim advection schemes provided by
1886      pkg/generic_advdiff
1887    o seaice:
1888      - removed all references to SEAICE_GRID.h fields from
1889        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1890        (cubed-sphere configuration will change a little)
1891      - grid computations in seaice_init are obsolete now.
1892      - cleaned up code a little so that is easier to read (hopefully).
1893      - added new (better?) discretizations of default advection and diffusion
1894        (turn on with SEAICEuseFluxForm)
1895      - replace 1 in 3d global fields by kSurface in growth.F
1896      
1897    checkpoint58a_post
1898    o seaice:
1899      - bug fix in advect.F
1900    o shelfice:
1901      - separate shelfice load anomaly from pload (breaks with time
1902        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1903        Its default is 0., but it may be computed more cleverly from (unknown)
1904        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1905        done offline. A good approximation of the pressure load anomaly is
1906        necessary to avoid large initial adjustment processes underneath
1907        deep-reaching shelfice.
1908      - small fix in ISOMIP shelfice_thermodynamics
1909      - add more sophisticated thermodynamics of Hellmer (1989), this is
1910        now the default
1911      - give a few constants more intuitive names
1912    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1913      if bulk formulae are used in long integration (especially EmPmR). Turn
1914      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1915      if balancePrintMean, the imbalance that is substracted is printed to
1916      STDOUT.
1917    o fix bug (typo) in obcs_apply_eta.F
1918    o add a new package shelfice which enables us to model the circulation
1919      underneath shelf-ice with draughts of hundreds of meters.
1920     - works
1921     - to do: + include improved thermodynamics
1922              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1923                instead of new field kTopC
1924              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1925                instead of new field R_shelfIce and new code in ini_depth.F
1926                and ini_mask_etc.F?
1927              + adjust vertical mixing schemes?
1928    o seaice pkg:
1929     - add a cpp-flag to include a simple formula for a salinity dependent
1930       freezing point of sea water at the surface
1931     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1932       meridional stresses are now different (and hopefully correct)
1933    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1934       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1935       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1936    o pkg/diagnostics: add options and parameters for regional-statistics
1937       diagnostics ; define regions by reading a region-mask from a file
1938       (might add other options later)
1939    o pkg/bulk_force:
1940     - add option and parameters to use AIM surface-flux formulae.
1941     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1942       others forcing fields (defined in PARM05, parameter file "data") are loaded
1943       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1944     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1945     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1946     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1947       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1948     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1949    
1950    checkpoint58
1951    o add "--embed-source" option to genmake2 which, when the supporting
1952      tools can be compiled (as determined by genmake2) will turn on the
1953      embed_files package which then embeds the entire MITgcm source code
1954      (*.[fFhc] + Makefile) used for the build within the executable
1955      - requested by CNH but off by default
1956      - adds a paltry <9MB to the mitgcmuv executable in most cases
1957      - only writes the output when useEMBEDSRC in eedata is true
1958    o clean up 3-dim. relaxation codes:
1959      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1960      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1961      * Thanks to Tom Haine for testing!
1962    
1963    checkpoint57z_post
1964    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1965      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1966    o fix the pickup behavior for obcs in combination with ptracers
1967    o fix a bug in ptracers_external_fields_load
1968    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1969      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1970    o transfered surface NH pressure to eta field (if exactConserv).
1971    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1972         and update lab_sea output.txt file.
1973    o completing 3-dim. relaxation code: additional term
1974         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1975      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1976      * At compile time, in "EXF_OPTIONS.h" set
1977          #define  ALLOW_CLIMTEMP_RELAXATION
1978          #define  ALLOW_CLIMSALT_RELAXATION
1979      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1980          tauThetaClimRelax3Dim = 15552000.0,
1981          tauSaltClimRelax3Dim  = 15552000.0,
1982      * 3 cases:
1983          1) Use a constant-in-time 3-dim. field
1984          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1985          3) Real-time relax. to time-evolving prescribed field
1986    o Adding Laplacian-type smoothness constraint on
1987      initial and boundary (forcing) controls (ic, bc)
1988      * enable at compile-time via
1989        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1990      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1991      * Absolute scale somewhat unclear so far
1992      * no area weighting was included since no other cost term does so far
1993    
1994    checkpoint57y_post
1995    First step for a NLFS adjoint
1996    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1997    o new init. routines for calc_r_star, calc_surf_dr
1998    o still need to deal with ini_masks_etc
1999    o testreport seemed happy
2000    checkpoint57y_pre
2001    
2002    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
2003    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
2004    o add new offset feature to offline pkg (plus minor cleanup)
2005    o cfc fixes for final year of integration
2006    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
2007      be in GCHEM_OPTIONS).
2008    
2009    checkpoint57x_post
2010    o fix testreport Pb in multiple test experiment.
2011    o cleanup our namelist syntax in verification:
2012      - make it more F95 standards compliant (some work still needed)
2013      - allows the vast majority of our tests to work with gfortran
2014    o Non-Hydrostatic:
2015     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
2016     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
2017    o Allow to apply AB on T,S rather than on AB(gT,gS):
2018     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
2019     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
2020       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2021     - need a "clever" read_pickup to restart from the other AB formulation
2022    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2023    o remove some unused variables (reduces number of compiler warnings)
2024    o adjoint
2025      * Disable useVariableViscosity for adjoint for time being
2026        (there are a number of extensive recomputations)
2027      * Initialize certain variables needed for adjoint
2028    
2029    checkpoint57w_post
2030    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2031                 fix the singleCpuIO RS version of MDSWRITEFIELD
2032       and add a WARNING if using globalFiles=T with multi-processors.
2033    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2034      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2035    o tracer advection scheme:
2036      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2037       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2038       was not very convenient).
2039      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2040       (further tests needed for the implicit DST & Flux-Limiter schemes).
2041    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2042      and sRef for convenience, handy, when you want to initialize
2043      ptracers in a large domain with a constant non-zero value. Also,
2044      untangle ptracers_init.F a little.
2045    
2046    checkpoint57v_post
2047    o change dome exp. to use variable viscosity in side-drag terms.
2048    o remove all the files from the cfc_offline test since they are now
2049      incorporated into tutorial_cfc_offline which has been producing
2050      identical results for a few days of testing
2051    o add new parameter: sideDragFactor to enable half-slip-side BC
2052      and change side-drag S/R to use viscosity from mom_calc_visc
2053      (can switch back by setting sideDragFactor=0.); affects results at
2054      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2055       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2056    o vorticity & strain are now computed without masking, to account for
2057      no-slip-side BC in variable viscosity calculation ; mask is applied
2058      anyway later on, before computing advection/coriolis terms.
2059    o modify exp4 to test new obcs support for reading from external files
2060      and for passive tracers
2061    o fix behavior of ptracers_monitor when monitor output is written to a
2062      netcdf-file; still not independent of monitor.F (writes in the same
2063      file).
2064    o change default value of tRef (put a uniform, meaningful value for ocean
2065      & atmos) and initialize sRef (was missing, as Martin mentioned).
2066    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2067      to be proportional to enstrophy dissipation length.  Thus,
2068       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2069      This is now consistent with Smagorinsky and with the manual.
2070    
2071    checkpoint57u_post
2072    o OBCS and PTRACERS: add open boundary support for passive tracers
2073      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2074        OB-values from file; this is not different from the way theta and salinity
2075        are treated
2076      - however, Orlanski-radiation conditions are not supported, and the model
2077        will stop if you use pTracers and Orlanski at the same time.
2078      - beefed up the rountine obcs_external_fields_load: now only those open
2079        boundary values are overwritten with values from files for which there
2080        are really files, otherwise the OB-fields remain untouched. This makes
2081        it possible to use different OBs at different ends of the domain (as
2082        with EXF)
2083    o reduce number of exch calls in shap_filt (s2).
2084    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2085      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2086    
2087    checkpoint57t_post
2088    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2089    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2090      same truncation, independent of the face number: affects affects several
2091      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2092    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2093      note that biharmonic viscosity + no-slip was not tested in any experiment.
2094    o fix bug in non-linear free-surf side-drag ; generate new output for
2095      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2096    o make mnc honor the writeBinaryPrec flag for most kinds of output
2097    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2098    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2099      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2100    o add brackets in multi-terms sum to get same truncation, independent of
2101      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2102      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2103    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2104      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2105      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2106      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2107      Suggested values of viscosity parameters found in mom_calc_visc.
2108      Many new viscosity diagnostics available.
2109    
2110    checkpoint57s_post
2111    o Add clearing-house for viscosity calculations, mom_calc_visc and
2112      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2113      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2114      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2115      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2116      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2117      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2118      ViscAhStrain and viscAhTension are now retired.
2119    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2120    o In response to JMC's bug report, genmake2 now ignores any soft-links
2121      that it finds in the *current* directory when searching for files.
2122      Soft-links found in any other source directories will still work as
2123      they did before.
2124    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2125      a C routine to unlimit the stack size
2126    o mnc-ify pkg/aim snapshot vars
2127    o mnc-ify pkg/land as requested by Daniel
2128    o various changes to mnc including:
2129      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2130      - output can now be grouped so that all files within a group
2131          change the ITER portion of their names in lock-step together
2132      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2133          and works with both EXCH1 and EXCH2 (but needs more testing)
2134      - writing works for all verification test cases w/ g77 on Linux
2135    
2136    checkpoint57r_post
2137    o make MNC variable initialization happen earlier
2138    o add diagnostics for (almost) each term of the momentum Eq.
2139    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2140    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2141    o remove MINIMAL_TAVE_OUTPUT option ;
2142      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2143    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2144      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2145    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2146    o add time-dependent SST, SSS control
2147    o cost terms in ecco/ modularized (new cost_generic.F)
2148    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2149    o new infrastructure for seaice model vs. obs misfits in seaice/
2150      * driver from the_main_loop.F is seaice_cost_driver.F
2151      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2152      * gradient check in Exp. 6a of natl_box_adjoint/
2153    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2154      (see README file)
2155    
2156    checkpoint57q_post
2157    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2158    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2159      - bug was reported by Jean-Michel and Ian Fenty
2160    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2161      update exp. cpl_aim+ocn output.
2162    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2163      Needed for high-res. runs with large global files
2164      to be able to limit tapelev size
2165    o Changed some tests for adjoint:
2166      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2167      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2168      * global_ocean.90x40x15/ back to default 3-level checkpointing
2169    o Modifications to enable scripted COMMON to MODULE conversion
2170      * verification/OpenAD/code/ has necessary scripts and description;
2171      * converts, compiles and runs successfully;
2172    
2173    checkpoint57p_post
2174    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2175    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2176      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2177    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2178    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2179      (was already the case for dissipation with mom_vecinv,
2180       and also the case for grad.PhiHyd when staggered-timeStep)
2181      This will allow to put dissipation out-off the AB time-stepping.
2182     Unfortunately, affects truncation error. Update output of exp. that "fails"
2183      (cg2d matching number) and leave the others for later: front_relax(10),
2184      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2185      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2186    
2187    checkpoint57o_post
2188    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2189      (2) its ready to be documented during the 20050801 DocFest
2190    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2191      for ideal_2D_oce and lab_sea on linux_ia32_g77
2192    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2193      in global1x1_tot/code_seaice_adj to access indices 32, 33
2194      (worth another tag)
2195    
2196    checkpoint57n_post
2197    o adding precip control xx_precip 32
2198    o adding swflux control xx_swflux 33
2199    o Replacing 10 forcing penalty cost routines by 1 generic.
2200    o Implementing partitioning in time-mean and variable adjustment
2201      for atmos. state.
2202    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2203    o in natl_box_adjoint:
2204      * updated exp 1 to 10
2205        (but does not have time-mean vs. variable split results yet)
2206    o updated global1x1/*_seaice_adj/
2207      to incorporate latest changes
2208    o enable useSingleCpuIO for mdsio vector routines
2209      (applies in particular to tapelev I/O)
2210    o removed inefficient K-loop in all active_file*control*.F
2211    
2212    checkpoint57m_post
2213    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2214      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2215    o pkg/exch2: filling of face-corner halo regions is optional
2216      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2217    
2218    checkpoint57l_post
2219     tag before updating tutorials (pre-release-2)
2220    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2221       for output and interpolation of input fields onto model grid)
2222    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2223       Affects results of exp. rotating_tank ; update output.txt.
2224    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2225          and taking the square quantity and/or using a fraction-weight field.
2226    o fix aim_diagnostics_init.F mate numbers.
2227    o add mnc output capability to diagnostics/diagstat and update
2228      our cvsignore files for the ACSII output generated
2229    
2230    checkpoint57k_post
2231    o lab_sea now uses diagnostics package and provides a suite of
2232      new EXF diagnostics output.
2233    
2234    checkpoint57j_post
2235    o exf
2236      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2237        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2238        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2239      * extended diagnostics output
2240        - now includes all EXF variables
2241        - hs, hl moved to common block
2242        - separate S/R for diagnostics, called after ctrl vector is added
2243        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2244        - EXFqnet contains true Qnet (i.e. includes qsw)
2245      * updated verif. lab_sea, global_with_exf
2246      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2247        to ensure that diagnostics sees a true EXFqnet
2248    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2249    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2250      several times with different frequencies.
2251    o mnc-ify the thsice package as requested by Daniel Enderton
2252      - the monitor--MNC output needs work
2253      - many attributes need to be added (most are currently blank)
2254    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2255      - many attributes need to be added (most are currently blank)
2256    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2257    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2258    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2259      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2260         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2261    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2262     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2263    
2264    checkpoint57i_post
2265    o Diagnostics package was changed: diagnostic allocation is now deactivated
2266      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2267    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2268      add 1rst Order upwind vertical Shear.
2269    o add a quick fix for A/B checkpointing in OFFLINE mode
2270    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2271      end-run around the C/Fortran linking horror in eesup/src/timers.F
2272    o added pkg/runclock: allows user to terminate run based on wall clock
2273    o added non-hydrostatic scaling parameter: nh_am2
2274    o pkg/my82: futile attempt to make results compiler-independent by adding
2275      some "_d 0", etc. no effect.
2276    o for mnc output, fill the 'T' coordinate var with myTime and create a
2277      separate 'iter' variable for iteration count
2278    o pkg/diagnostics:
2279      add new capability: output of Global/Regional & per-level statistics ;
2280      tested against monitor output (including land & thSIce) on various exp.
2281    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2282    
2283    checkpoint57h_done
2284      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2285      data.diagnostics, data.gchem, data.ptracers) is done.
2286    
2287    o pkg/diagnostics: prepare for Global/Regional statistics.
2288      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2289    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2290      and rename it: DIFFERENT_MULTIPLE
2291    
2292    checkpoint57h_post
2293    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2294    o pkg/diagnostics: change output frequency, now in seconds (instead
2295      of Nb of iterations). This requires to change data.diagnostics.
2296    checkpoint57h_pre
2297    
2298    o in mnc, let the user create the output dir if both mnc_outdir_date
2299      and mnc_outdir_num are false
2300    o add fflags() to pkg/diagnostics which allows one to specify, on a
2301      per-file basis, the file precision [default behavior is unchanged]
2302    o added diagnostics to pkg/kpp, including computation of mixed layer
2303      depth based on a temperature/density criterion
2304    o updated verification/natl_box to test the new pkg/kpp diagnostics
2305    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2306    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2307    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2308      not mnc -- this mistake was found by JMC and is now corrected
2309    
2310    checkpoint57g_post
2311    o add Adams-Bashforth 3rd Order time stepping:
2312      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2313      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2314    checkpoint57g_pre
2315    
2316    o make lambda[Theta,Salt]ClimRelax spatially varying
2317      (default remains spatially uniform constant based on tau)
2318    o added new control variables
2319      * init. uVel, vVel, etanN
2320      * lambda[Theta,Salt]ClimRelax
2321    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2322      (suggested by G. Forget)
2323    
2324    checkpoint57f_post
2325    o add parameter "baseTime" = model base time = time at iteration zero
2326      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2327      account for baseTime shift
2328    o move Coriolis arrays from PARAMS.h to GRID.h
2329    checkpoint57f_pre
2330    
2331    o mnc-ifying the seaice package
2332    o introduced an alternative length scale calculation for use in the limiting
2333      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2334    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2335    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2336      as well as grad(vort3).  Made it compatible with both approximate form
2337      for the cubed sphere and full form of these gradients.  Added flag
2338      useFullLeith to select between approximate and full form.  
2339    o add "d0" in getcon.F to reduce differences between compilers/platforms
2340      update output.txt of exp. fizhi-gridalt-hs
2341    o change port_rand funtion to allow to set the seed.
2342    o fix obscure MNC bug involving conversion between reals and integers
2343      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2344        new version is now more standards-compliant
2345    o adjoint-related modifications
2346      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2347      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2348      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2349    
2350    checkpoint57e_post
2351    o Adding eddy stress controls a la Ferreira et al.
2352    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2353    
2354    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2355      update output.txt of exp. fizhi-gridalt-hs
2356    o add more "Z" dimensions and associated coordinate vars to MNC
2357    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2358    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2359      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2360      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2361      months and years.  Requires pkg/cal.
2362    o diagnostics: add pickup functionality
2363      - off by default for backwards compatibility
2364      - current version only uses MDSIO -- MNC will be added
2365    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2366    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2367    
2368    checkpoint57d_post
2369    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2370    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2371      output from the diagnostics package
2372    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2373    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2374      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2375    o add coordinate variables to the MNC output from the diagnostics package
2376    o change MNC-flags default value: true when useMNC=TRUE
2377    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2378      the ability (off by default) to read the grid information using MNC
2379    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2380    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2381    o do snap-shot diagnostics at the middle of the time-interval (instead of
2382      at the end).
2383    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2384      new test for AIM with thSIce + slab-ocean
2385    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2386    o move state variable diagnostics to the beginning of the time step ;
2387      (note: still needs some work specially for snap-shot diagnostics)
2388      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2389    
2390    checkpoint57c_post
2391    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2392    o generate new output.txt files on faulks with g77 & the new -ieee option
2393    checkpoint57c_pre
2394    
2395    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2396      update output.txt of exp. global_ocean.90x40x15
2397    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2398      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2399    o add saltFlux(+File) forcing capability with periodicExternalForcing
2400    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2401    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2402    o improvements for the MNC output from DIAGNOSTICS:
2403      - correct handling of the unlimitied dimension
2404      - all dims now have associated coordinate variables
2405      - variables located at U, V, and Corner ("Z") points are now written
2406        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2407        *all* data points are output
2408    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2409    o added pkg/seaice/seaice_monitor.F
2410    o mdsio_readfield.F can now read files visible only to master MPI process.
2411    o pkg/seaice: some test code for ice-modified ocean stress
2412    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2413      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2414      spurious negative numbers for precipitation and humidity.  Will cause
2415      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2416    o pkg/ctrl/
2417      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2418        May be enabled via doPackDiag
2419      *  introduce z-scaling of
2420         + gradient (doZscalePack) and
2421         + control (doZscaleUnpack)
2422    o pkg/mdsio/
2423      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2424      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2425    
2426    checkpoint57b_post
2427    o simplify options in diagnostics_fill arguments (remove weird combinations)
2428    o fix MNC coordinate variables so that they now contain per-face index
2429      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2430      general, EXCH2 grids are only aligned to a "local" coordinate system
2431    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2432    o Implement instantaneous output within pkg diagnostics:
2433      setting a negative frequency in data.diagnostics produces
2434     "snap-shot" output (as opposed to time-average if freq > 0)
2435    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2436      NOTE: change ptracer diagnostics name: use 2 characters to work with
2437            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2438    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2439      becomes the coordinate variable for the 'T' dimension
2440    o add CF-style coordinate variables to MNC
2441      - just a first cut:  numbers are meaningless on the cubesphere and
2442        missing along the T axis but otherwise it works!
2443    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2444    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2445    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2446      this is based directly on what the model compute, so that the content of
2447      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2448    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2449    o clean up build options files for SunOS, in particular
2450      - remove -traditional from xmakedepend
2451      - change -xarch=v9 to -xarch=native for f77
2452      - restore use of make (not gmake)
2453      - add CC=gcc if using g77
2454    o changes per discussion of AM, JMC, & EH3 today:
2455      - move redundant "grid" variables out of "state" -- in preparation of
2456        creating proper CF-style coordinate variables and in recognition
2457        that any/all grid variables can be easily copied (eg. w/NCO) from
2458        the grid files into any of the other NetCDF files
2459      - *always* output grid variables with MDSIO (this will eventually be
2460        changed)
2461      - output MNC grid file if useMNC is true
2462    o every instance of _END_MASTER() has been found and replaced with
2463      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2464      preprocessors
2465    o re-arrange diagnostics pkg initialisation:
2466     - allow each package to extend the available diagnostics list
2467     - add some checking and fix small problems (multi-threaded, ...)
2468     - new S/R diagnostics_fill (replace fill_diagnostics):
2469       look through the short list of active diag. (instead of the long list)
2470       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2471    
2472    checkpoint57a_post
2473    o this set of changes restores TAMC compatibility
2474      tested for global_ocean.90x40x15 adjoint on trough
2475      (what a pain)
2476    
2477    checkpoint57a_pre
2478    o some modifs in tools/build_options for sunos
2479    o call ctrl_pack for ctrl at end for optimcycle=0
2480    
2481    checkpoint57
2482    o add horizontal bi-harmonic viscosity for vertical velocity
2483      - new parameter viscA4W (defaults to viscA4)
2484      - affects only non-hydrostatic code
2485      - to be done: no-slip lateral boundary conditions
2486    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2487    o implement Implicit Vertical advection for pTracers
2488    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2489      (implemented also for implicit vertical diffusion & advection)
2490    o OBCS: extend application of tracer open boundary conditions
2491      to a strip beyond the boundary of width Olx/Oly
2492    o add call monitor to TAF set of required calls (flow directives)
2493      and include in natl_box_adjoint
2494    o untangle a few ifdefs related to cost, ctrl, autodiff
2495      untangel a few ALLOW_ECCO_OPTIMIZATION
2496    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2497      (theta2, salt2 in ecco_cost_weights)
2498    
2499    checkpoint56c_post
2500    o OBCS as control variables
2501      - update ctrl_ad_diff.list, obcs_ad_diff.list
2502      - remove balance of obcs controls from default
2503      - fix index bug nobcs in ctrl_init
2504      - fix dummy fields filen in ctrl_pack
2505      - add dummy weights for obcs
2506    o lsopt: comment out fort.94 output
2507    o optim:
2508      - remove unnecessary header files
2509      - adjusted namelists
2510      - add xerbla.F to Makefile
2511    o exf:
2512      - multiple modifications of exf_check_range
2513      - unit change in exf_init_runoff from [m/year] to [m/s]
2514    o mdsio:
2515      - i/o-vector change debugLevel from debLevA to debLevB
2516    
2517    checkpoint56b_post
2518    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2519      is called from DO_THE_MODEL_IO
2520      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2521      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2522      - clean up PTRACERS_WRITE_TIMEAVE a little
2523    o add another verification experiment that tests both the cfc-pkg and
2524      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2525      reactive tendencies treated inline with regular timestepping
2526    o testreport previously did a lousy job of comparing small numbers, so
2527      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2528      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2529      testreport.
2530    o ptracers_monitor: bug fix for MPI
2531    
2532    checkpoint56a_post
2533    o GCHEM: finish reorganizating the package
2534      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2535        (introduces another 3D-array for each passive tracer, but only if
2536        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2537        gchemTendency is not needed because the timestep is done separately)
2538      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2539      - GCHEM is now---more or less cleanly---separate from PTRACERS
2540      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2541        so clear to me how that should be done in a general way.
2542    o CFC: improve formatting of output in CFC_ATMOS
2543    o PTRACERS:
2544      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2545        that ALL experiments with ptracers enable can be checked. This makes
2546        GCHEM_MONITOR obsolete.
2547      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2548        monitorFreq
2549      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2550    o add PTRACERS (PTR0[1-5]) to testreport output
2551    o exf_check_range:
2552      * default changed to .TRUE.
2553      * will check values for niter0 if debLevA, every timestep if debLevB
2554      * STOP in exf_check_range if 'out of range'
2555      * range chosen generous to allow for potential extema
2556      TBD: a version with stricter range
2557           permitted range would be runtime parameters
2558    o GMredi:
2559      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2560      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2561      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2562    o GCHEM:
2563      - move call to GCHEM_FORCING_SEP, so that it is now called before
2564        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2565      - introduced a useGCHEM runtime flag and applied it everywhere.
2566      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2567        this flag is now only visible within GCHEM-pkg routines.
2568      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2569        be replaced by a 3D array that is computed before thermodynamics; for
2570        this, the tracer ID iTracer had to be included into the parameter list
2571        of ptracers_forcing
2572      - set up forward_step to call gchem_forcing, that will replace
2573        gchem_forcing_int in ptracers_forcing
2574      - cleaning up
2575    o small cleaning of exch2: remove files that are also in eesupp/src
2576    
2577    checkpoint56
2578    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2579    o mnc: cleanup "full" files--fixes out-of-memory problem
2580    o ECCO-GODAE
2581      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2582      * fully merged and updated from SIO code
2583        windstress sign change affects
2584        - exf_inscal_[u/v]stress
2585        - sign of xx_tau[u/v] adjustments
2586        - signs in cost_scat
2587      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2588      * natl_box_adjoint updated and compressed
2589      * 2-level checkpoint switch added
2590        (tested in EXP. 1 of natl_box_adjoint)
2591      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2592    o SVD
2593      * first complete, non-hacked version for SVD calculations
2594      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2595        performed via direct access files admtlm_vector.it????
2596        (via ctrl_[un]pack)
2597      * optimcycle is used for ARPACK iteration counter
2598        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2599      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2600        and add linear transforms where necessary
2601      * controls are initial/final SST, SSS (can be extended; need to check
2602        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2603    o mdsio: filename info to both stderr, stdout
2604    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2605      from sign change
2606    
2607    checkpoint55j_post
2608    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2609      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2610    o add consistent build directories and .cvsignore files to verification
2611    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2612    o make all subroutines 30 or less characters in length for certain older
2613      compilers to work (a thorough search only turns up two routines in
2614      pkg/ptracers)
2615    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2616      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2617    
2618    checkpoint55i_post
2619    o change arrays for total vertical diffusivity (2.D if explicit,
2620      3.D if implicit) ; each ptracer uses its own background value.
2621    o added mnc/NetCDF output capability to ocn_compon_interf
2622      - added bits to verification/cpl_aim+ocn so that it can run on
2623        ITRDA and other clusters without the mpirun "-wd" option
2624    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2625      configuration
2626    o give MNC the ability to create additional files rather than
2627      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2628      - the default is just less than 2GB which is a practical limit
2629        on many systems
2630    o Compute the non-local term using either KPP vertical diffusivity (=default)
2631       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2632    
2633    checkpoint55h_post
2634    o add verification test "vermix"
2635    o remove all the *_ioinc flags and replace with the single global
2636      outputTypesInclusive flag
2637    o allow to set a vertical profile of vertical diffusivity for T & S
2638    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2639    o useMNC moved from data.mnc to data.pkg
2640    
2641    checkpoint55g_post
2642    o Renaming carbon AD experiments to comply with testreport conventions
2643    o Updating adjoint of Held-Suarez hs94.1x64x5
2644    o Fixing directives for non-ECCO forward_step, after ECCO directives
2645      have been fixed to avoid recomp. of do_oceanic_phys
2646      Works well for global_ocean.90x40x15,
2647      but recomp. issue remains for carbon
2648    o Updating adjoint output for natl_box_adjoint after
2649      pkg/ecco has been modified (see taga c55d_post)
2650    
2651    checkpoint55f_post
2652    o rename to timeave_init_fixed
2653    
2654    checkpoint55e_post
2655    o some delicate re-shuffle of store directives to avoid one
2656      extra call of do_oceanic_physics
2657      affects ecco_the_main_loop.F, do_oceanic_physics.F
2658      checkpoint_lev1_directives.h
2659    o NB: this may break global_ocean adjoint temporarily,
2660      but it is clear how to fix it. Will do later, need this now.
2661    
2662    checkpoint55d_post
2663    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2664    o ecco_cost_weights is modified to 1x1 runs
2665    o modifs to allow observations to be read in as
2666      single file or yearly files
2667    o enable to read exf forcing fields as either
2668      single file or yearly files (flag useExfYearlyFields)
2669    checkpoint55d_pre
2670    
2671    o switch between 2-level and 3-level checkpointing
2672    o add ability of MNC to write local and "partial" (eg. 2D slices where
2673      the full 3D field is never actually stored) arrays to NetCDF files
2674      with the correct (that is, the complete multi-dimensional) set of
2675      array indicies
2676      - used in mom_vecinv() to write the diagFreq output
2677      - tested (demonstrated) in verification/aim.5l_cs
2678  o further mnc-ification  o further mnc-ification
2679    - add verification/lab_sea to the list with mnc setups    - add verification/lab_sea to the list with mnc setups
2680    - fix undefined mnc v-names in cd_code    - fix undefined mnc v-names in cd_code
# Line 118  o add two new packages Line 2790  o add two new packages
2790    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2791    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2792      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2793      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2794  o add offline package  o add offline package
2795  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2796    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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