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revision 1.186 by edhill, Thu Oct 16 16:29:58 2003 UTC revision 1.1176 by jmc, Mon Oct 12 16:44:27 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    checkpoint61w
8    o adjoint:
9      * update and finish work on adjoint of dic package (G. Forget)
10      * start adjoint of offline package
11      * bug fix for cube-sphere TLM code (active_file_g.F)
12    o tutorial_global_oce_optim:
13      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
14      and add SIZE.h_mpi for MPI testing
15    o pkg autodiff
16     - fix bug in autodiff_restore
17     - make genmake2 remove comments and empty lines from ad_input_code.f in
18       order to reduce file size (new script file remove_comments_sed)
19    o allows to specify vertical profile of vertical viscosity (viscArNr)
20    o pkg autodiff
21      autodiff_ini_model_io: comment out writing of grid information to netcdf
22      files, because at this time the grid fields are a bunch of zeros
23      (this is analogous to ini_mnc_vars.F)
24    o pkg seaice/autodiff:
25     left-over from removing the 3-time-level fields:
26     - small rearrangement of common blocks (SEAICE.h)
27     - fix field declaration in order to get meaningful output in
28       adseaice.*.nc (adcommon.h)
29    o pkg obcs:
30     - go through NH code only if nonHydrostatic=T
31     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
32     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
33       => Update output of experiment seaice_obcs
34     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
35     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
36     - fix restart for useOBCSprescribe + useEXF
37    o pkg ctrl
38     - make obcs as control parameter work also with useSingleCPUio
39     - replace a few sny and snx by Ny and Nx to be consistent with
40       ctrl_set_globfld_x/yz.F
41    o pkg seaice
42     - re-introduce global field frWtrAtm for the case of
43       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
44     - catch the case of an empty filename in seaice_cost_init_fixed.F
45    o pkg ecco:
46     - small bug fixes in the_main_loop
47      . fix order of monitor arguments
48      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
49      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
50        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
51     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
52       imbalance diagnostics for wmean_h/sflux = 0
53     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
54     - catch the case of empty filenames in ecco_cost_init_fixed.F
55       and ecco_readparms.F
56     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
57       to make this statement meaningfull in ecco_cost_weights.F
58    o pkg zonal_filt:
59      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
60      - when using rStar, filter uVel*hFacW instead of uVel
61       (tested without topography: fix a Pb of growing instability with NLFS)
62    o pkg/aim/thsice:
63     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
64      (works as SST restoring)
65    o pkg/thsice:
66     -add specific parameter for salt restoring in slab mixed-layer
67       (by default equal to the temperature restoring)
68    
69    checkpoint61v
70    o pkg/kpp:
71     -add double diffusive contributions as a hack, turned off by default
72      for now, and the code can be excluded with a CPP-flag
73      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
74     -add a verification experiments to "vermix" to test this code
75    o pkg/mom_common:
76      Move computation of length scales to mom_init_fixed.F (avoid recomputation
77      at each time-steps*levels).
78    o pkg/layers:
79      Created a new package for computing volume fluxes in temperature or
80      [not yet implemented] density layers, e.g. for calculating residual
81      overturning circulations.
82    o pkg/diagnostics:
83      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
84    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
85    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
86      To avoid mixing type (RS/RL) of input/output array argument,
87      replace single mixed-type array with a pair from each type (RS/RL).
88    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
89      is now implemented for all pkgs (previously only done for the main pickup)
90    
91    checkpoint61u
92    o pkg/obcs:
93      - change OB?eta from _RS to _RL and put them into a separate commen block
94      - add code to read OB?eta from a file via obcs_prescribe_read: the code
95        compiles and does not destroy any other experiments, the data is read
96        properly, but the code is not tested in actual applications
97    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
98      create a meaningful unit attribute for the time coordinate variable
99    o pkg/ebm: add plenty of missing "_d 0" ;
100       update results of experiment global_ocean_ebm (fwd + adjoint tests)
101      Notes: several pieces of code only works for (very) specific set up
102       (domain size, lat range, etc ...); should be documented & stop if one
103       of those assumptions is not meet.
104    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
105       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
106          and offline_exf_seaice (seaicetd + adjoint).
107    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
108       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
109        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
110    o few changes to pass when compiling with strick checking of arguments
111       across S/R (allow to find few bugs in S/R calls).
112    o pkg/seaice:
113     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
114       2d-fields, for slightly better performance
115    
116    checkpoint61t
117    o pkg/seaice:
118     - remove unused variables in seaice_evp
119     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
120    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
121       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
122       each processor opens a different file (a fix from Matt).
123    o cg2d:
124       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
125       this reduces number of EXCH calls by 2 when using exch2.
126       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
127       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
128    o pkg/thsice:
129       add code for Near Infra-Red albedo (from Jeff)
130       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
131    o ini_model_io:
132       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
133       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
134       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
135    
136    checkpoint61s
137    o pkg/exch2 (exch2_rxN_cube*):
138       remove last BARRIER (no need to synchronise after getting data from shared
139       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
140    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
141      and generate new output (for the 2 tests) using default rotationPeriod.
142    o pkg/exch2:
143      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
144        (was already the case with AUTODIFF_EXCH2 defined)
145      - add bj in exch2 arrays and S/R.
146      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
147        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
148    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
149      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
150        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
151      - verification experiment natl_box.longstep
152    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
153      allow different versions of ifort (8 or 9) and different versions
154       of mpi (mpich or mpich2) to be used with the same optfile.
155      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
156       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
157    o pkg/seaice:
158      fix previous modif (3-level field removed) for old-pickup reading
159    
160    checkpoint61r
161    o pkg/seaice:
162     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
163      1. introduce fields for time step (N-1)
164      2. do not use levels 2 and 3 anymore (but keep them)
165      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
166         includes changes to pkg/thsice/thsice_get_velocity.F,
167         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
168         pkg/obcs/obcs_apply_uvice.F.
169     - completely remove code for leap-frog time stepping for second order
170       advection
171     - adjusted adjoint accordingly;
172       gradient checks have improved by an order of magnitude!
173    
174    checkpoint61q
175    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
176     - the boundary conditions along open boundaries are unclear, because the
177       associated masks are set to zero and are thus treated as closed when
178       applying the slip-boundary conditions.
179     - move initialisation of grid variables from seaice_init_varia to _fixed
180    o adding doc/diags_changes.txt
181    o model/src:
182      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
183       to avoid "_diags" naming if no relation to pkg/diagnostics.
184      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
185       file and only call PLOT_FIELD_XYZ if debugMode=T.
186      remove few PLOT_FIELD_XY calls outside initialisation.
187      remove few unnecessary BARRIER.
188    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
189      of salt_plume package in Southern Ocean
190    o pkg/thsice:
191     - fix hOceMxL in overlap (needed for sea-ice advection);
192       update output of experiment global_ocean.cs32x15.icedyn.
193    o pkg/seaice:
194     - make the (placeholder-)tracer IceAge a little more meaningful
195      by avoiding ridging of age due to convergent ice flow
196     - add diagnostics for surface temperature, atmospheric and oceanic
197       heat flux, and atmospheric and oceanic ice growth
198    
199    checkpoint61p
200    o eesupp (global_max & global_sum):
201     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
202     - remove starting & endding barrier (no longer needed)
203    o pkg/mdsio, writelocal:
204       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
205       (remove the STOP): uses shared buffer IO to store data from all threads
206       and then let master-thread write nThreads tiles.
207    o pkg/mdsio (read/write field):
208     - tiled IO done in 1 piece (all levels at a time);
209     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
210     - multi-threaded: allow to read/write local (non-shared) array
211       (was already working with singleCpuIO ; now works also without);
212       => no longer needs barrier call after reading a file (added inside
213       mds_read/write field).
214     - move barrier calls outside gather/scatter_2d to mds_read/write_field
215    o pkg/obcs/exf
216      - exf_getffieldrec.F: add a few ". _d 0" and
217                            add code to catch the case fldperiod = 0.  
218      - obcs_precribe_read.F: change if statements so that they match
219                              the variable type (_RL)
220      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
221        exf_iprec) as part of namelist EXF_NML_01
222    o pkg/mdsio:
223      - read/write tiled (local) files: read/write 1-level tile chunk at a time
224        (instead of segment of length sNx); expected to speed up tiled IO.
225    o pkg/exch2:
226      - take buffer copy from/to array out of S/R exch2_send/recv into new
227        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
228        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
229      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
230      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
231        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
232        including Topology header file (and common blocks).
233      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
234        remove 2nd exch call in exch2_s3d_rx (no longer needed).
235      - document S/R arg. list (+ update some comments)
236    o pkg/seaice:
237      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
238        temperature and humidity over sea ice based on climatological values.
239      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
240        of LSR (this change is expected to change the results slightly because now
241        it uses slightly difference moduli from the second last LSR solution, but
242        that is more consistent with the stress computations; this part of the code
243        is not tested in the verification experiments)
244      - fix diagnostics for flux of ice in case of B-grid
245      - turn strain rates eij and press into global fields within global
246        common block in SEAICE.h for more straighforward diagnostics
247      - fix diagnostics for principal stress components, press, zeta, eta
248        to give something meaning full
249    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
250      new output (all 4 tests) using default rotationPeriod.
251    o pkg KPP:
252      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
253      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
254        and normal grid from 1 to Nr)
255    o Fix computations of L4rdt in mom_calc_visc.F
256    o eesupp:
257      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
258      should be called before a "stop" if we know that all process are going
259      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
260    
261    checkpoint61o
262    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
263    o model/src/ini_curvilinear_grid.F:
264       compute angleSin/CosC when they are not read from a file
265    o pkg/seaice:
266       add pseudo time stepping for LSOR
267    o pkg/exch2:
268       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
269    o pkg/seaice:
270       Adding separate sea ice albedo, drag coefficients, and HO in Southern
271       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
272    o SingleCpuIO:
273       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
274    o pkg/seaice:
275       put exchanged variable in (local) common block for MPI+Multi-Threads
276       to work (necessary with exch1, and for now with exch2 too).
277    o verification: to get more experiments tested with mpi, mth and mpi+mth,
278      change tiling of:
279       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
280       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
281      update output of exp:
282       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
283       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
284      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
285                       (note: output.txt generated on faulks using only 1 tile)
286    o eesupp & mdsio (SingleCpuIO):
287     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
288       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
289       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
290     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
291     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
292       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
293    o pkg/exch2:
294     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
295       read parameter file "data.exch2" if it exists; otherwise try default regular
296       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
297     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
298       with new code (not to be used, just as a backup solution).
299     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
300       in utils/exch2/input.
301    
302    checkpoint61n
303    o eesupp & mdsio (SingleCpuIO):
304      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
305        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
306        receive real*4 array (instead of real*8) to read/write 32.bit files.
307        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
308         and remove new mapping S/R)
309    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
310      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
311        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
312        when using exch2. Add S/R to map global io-buffer to global model array.
313      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
314    
315    checkpoint61m
316    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
317      and add 3 other S/R for other types (R4,R8,RS).
318      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
319    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
320     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
321     - reduce number of macro definitions (keep only those which are used);
322       can always call directly the corrresponding S/R if needed.
323     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
324       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
325     Fixed wrong type of arg in:
326       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
327       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
328     To fix: global_sum of var in common block is wrong (multi-threaded) in:
329       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
330     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
331    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
332      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
333    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
334    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
335      edges are closed (zero depth); might happen with "blank tiles";
336      for now, disabled if using OBCS.
337    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
338      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
339    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
340      to reduce length of 1.D array print in STDOUT.
341    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
342      + use 48 tiles (16x8): this will allow to test "blank tiles".
343    o start to test MPI + multi-threaded (change testreport to skip tests
344      where number of tiles do not match).
345    o genmake2: add option "-omp" to turn on Open-MP ;
346      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
347    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
348      and keep the original tile numbering. Note: compatible with old
349      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
350    
351    checkpoint61l
352    o Overlaps had been forgotten in calculating ijk keys : fixed
353    o fix cyrus makedepend for gcc 4.4
354    o experiment fizhi-cs-aqualev20:
355      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
356      and generate new output. Note: new output is much closer to the old
357      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
358      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
359    o pkg/fizhi:
360     - change to avoid indices going deliberately over array-bounds
361     - remove unnecessary MPI stuff
362     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
363     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
364       does not go over array-bounds and therefore returns reliable output.
365     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
366       this S/R has 4 output arguments, which are used inside "get_alarm";
367       when it is called with the same variable "ndum" in place of several
368       output arguments, this produces weird side effect inside "get_alarm"
369      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
370       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
371       address) and produces error.
372    o tools/gemake2: (March 27-29 2009)
373      with option "-mpi": link *_mpi files from "MODS" dir (this is what
374      testreport does).
375    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
376    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
377       update lab_sea.lsr & lab_sea.salt_plume results
378    o pkg/seaice:
379      Major overhaul of the LSOR solver: change discretization from original
380      finite differences to finite volume. The old routine is still in the
381      file seaice_lsr.F and can be turned on with the CPP-flag
382      SEAICE_OLD_AND_BAD_DISCRETIZATION
383      Along with this change, the discretization of the strain rates is changed.
384      The same flag turns on the old discretization in seaice_calc_strainrates.F
385      All verification experiments with seaice are affected (except for
386      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
387      results by setting the above flag.
388      Further changes involve changes in defaults:
389      - ALLOW_FLOODING is defined and turned on by default
390      - SEAICEadvSnow = .true. is now the default
391      - SEAICEadvSalt = .true. is now the default
392      - SEAICEadvAge  = .true. is now the default
393      - SEAICE_clipVelocities  = .false. is now the default
394                                         (as per J. Zhang's recommendation)
395      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
396        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
397      - seaice_growth: replace computation of UG by a simple copy from wspeed
398    
399    checkpoint61k
400    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
401      seaice_lsr: fixed a few metric terms,
402                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
403                  add more debugging diagnostics
404      seaice_evp: removed superfluous many metric terms of FV discretization
405                  of stress divergence
406                  affects lab_sea, lab_sea.hb87
407      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
408                  of stress divergence for non-evp solver
409                  (this part is not tested anywhere)
410      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
411                  they were effectively only half slip
412                  affects lab_sea.hb87
413      updated all relevant verification experiments (except lab_sea//output_adm.txt
414        which was left over, but fails at level 7 & 6)
415    
416    checkpoint61j
417    o pkg/seaice: turn a few hard wired parameters into run time parameters
418    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
419      time in seconds as promised by the usints in seaice_monitor and exf_monitor
420    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
421      that are not cubed-sphere grids
422    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
423    o pkg/ctrl:
424      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
425    o non-hydrostatic (calc_gw.F):
426      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
427      update output of exp. global_ocean.cs32x15.viscA4
428    o remove backward compatibility for thetaMin,phiMin
429      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
430    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
431      interpolated wind field not only for curvilineargrid=.true., but also
432      for a rotated grid (rotateGrid=.true.)
433    o pkg/exf: add capability to bypass interpolation for runoff
434      by setting yet another CPP-flag
435    o eesupp/src, B-grid exchange:
436      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
437    o autodiff
438      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
439      allows to switch to single-prec common blocks;
440      corresponding switch occurs in tamc.h, integer isbyte
441      TAF store directivs "byte" and "kind" seem equivalent;
442      Most tamc.h have been updated correspondingly.
443    
444    checkpoint61i
445    o autodiff:
446      fix autodiff_sore/_restore indices for obcs
447      (spotted by I. Hoteit, M. Mazloff)
448    o pkg/autodiff, pkg/ctrl:
449      Add flag to reduce all tapelev I/O to single-prec.
450      In data.ctrl set
451        doSinglePrecTapelev = .TRUE.
452    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
453      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
454    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
455      real fresh water flux (not yet)
456    o pkg/mdsio & rw:
457     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
458     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
459    o pkg/flt:
460     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
461       init_fixed & ini_varia.
462     - clean-up & simplify linear interpolation S/R:
463       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
464     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
465     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
466     - add vert. coordinate & horiz. indices to output files.
467     - change vertical position in initial condition, from index to depth [m].
468     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
469       (easier to get to a curvilinear grid) ; delX,delY no longer used.
470    o pkg/ggl90: a few modifications:
471     - fix bottom boundary condition, and interpolation of KappaE
472       near top and bottom
473     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
474     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
475     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
476    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
477      (maintain temporary backward compatibility, until next checkpoint)
478    
479    checkpoint61h
480    o pkg/diagnostics with "periodic averaging diagnostics":
481      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
482    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
483    o pkg/obcs: fix loop ranges for balancing code
484    o pkg/flt:
485     - improve criteria for finding which tile owns a float.
486     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
487    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
488      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
489      with ocean biogeo)
490    o pkg/flt:
491     - do some cleaning and fix the restart ;
492     - add output.txt in flt_example/results to get this pkg tested.
493    o genmake2: add an EXTENDED_SRC option and flag.
494       for now, cannot be turned on on command line (only through genmake_local)
495    o pkg/mdsio: read/write vector:
496     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
497     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
498       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
499     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
500      (drop to 4 digits matching for grad). But this test does not look very
501      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
502    
503    checkpoint61g
504    o pkg/flt:
505      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
506       + make OPTIONS file more standard.
507      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
508      - fix _BYTESWAPIO CPP-Flag
509      - standard reading of file-parameter "data.flt"
510      - fix argument list of S/R FLT_RESTART
511      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
512    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
513    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
514      a still unfixed compiler/optimization bug
515    
516    checkpoint61f
517    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
518      update results of global_ocean.cs32x15.icedyn test.
519    o move getcon.F from model/src to pkg/fizhi.
520    o pkg/exf: add parameter for extrapolation of temp up to the surface
521       and option to prevent negative evap (in bulk_largeyeager04 only).
522    o Prather Advection scheme: fix tracer conservation for divergent flow
523      (e.g., when using NonLin Free-Surface).
524    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
525    o gmredi (Visbeck-variable-K):
526     - add more parameters to Visbeck-variable-K.
527     - use a 5 points average for dSigmaR in Visbeck-K calculation
528       (more "homogenous": same stencil and same weights as in dSigmaH)
529     - update output of ideal_2D_oce experiment.
530    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
531      (#undef REAL4_IS_SLOW)
532     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
533       coordinate variable
534     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
535       (surface forcing fields), removes some of the functionality
536     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
537     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
538       probably not all: copy _RS surface flux fields to RL field before
539       calling DIAGNOSTICS_FILL
540     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
541       real*4 (CALL EXCH_*_RS) versions.
542     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
543       (generate new output).
544    
545    checkpoint61e
546    o gmredi (Visbeck-variable-K):
547      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
548      - change computation of Visbeck-K where Slope > Smax :        
549        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
550        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
551    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
552      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
553    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
554    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
555      does not become too large (to avoid precision problems in implicit-diffusion
556      solver); update ideal_2D_oce output.
557    o pkg ggl90:
558      - in ggl90_cal.F: compute only one set of visc/diff, used to
559        step forward TKE/T/S/momentum
560      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
561        have Prandlt =1)
562    o gmredi (fm07):
563      - add lower limit on Transition layer thickness + lower limit on 1/lambda
564      - allow to set few more params from data.gmredi
565    o pkg ggl90:
566          - add missing sqrt(2) factor in computation of mixing length
567            scale in ggl90_calc.F
568            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
569    
570    checkpoint61d
571    o adjoint modifs
572      - adapt to new field rhoInSitu
573      - allow to revert from StoreDynVars2D, StoreDynVars3D
574        to individual fields
575        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
576    o store 3-D (in-situ) density in commom block (DYNVARS.h)
577     - save 1 rho computation.
578     - no longer modify T & S inland when using down_slope pkg.
579    o gad_som : allow to switch to SOM advection for T & S without corresponding
580      pickup files (using new S/R: MDS_CHECK4FILE).
581    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
582      (for useSingleCpuIO to work in multi-threaded)
583    o pkg/shelfice:
584     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
585       with SHELFICEtopoFile in data.shelfice
586     - move code for reading ice shelf topography and modifying hFacC into separate
587       subroutines of the shelfice package
588     - separate initialisation of "fixed" and "variable" variables
589     - kTopC is not (yet) replaced by kSurfC, although this is possible
590    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
591    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
592      and rename:
593      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
594      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
595    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
596    
597    checkpoint61c
598    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
599      to add mass source/sink of fluid in the interior (3-D generalisation
600      of oceanic real-fresh water flux).
601    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
602    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
603    o new pkg: down_slope
604      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
605      - presently, modify T & S inland (dwnslp_calc_rho.F).
606        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
607      - implementation for ocean in P-coords not tested.
608      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
609    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
610      (to facilitate conversion of oceanic pkg to p-coordinate).
611    o change FIND_RHO to FIND_RHO_2D :
612      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
613    o new pkg: cheapaml
614    
615    checkpoint61b
616    o exch2:
617      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
618      - no longer depend on the order sequence (N,S,E,W).
619      - 3rd exchange no longer needed (tested with 24 tiles).
620      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
621      - exch_UV_A-grid readily available (but not yet tested).
622      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
623      (both are no longer needed) in exch_uv: no effect in forward run; but
624       get truncation error differences with adjoint exch.
625    o exch2:
626     - change index-bounds storage (moved from target to local tile,
627       more intuitive this way) ; rename/remove some variables.
628     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
629    
630    checkpoint61a
631    o exch2/matlab-topology-generator:
632      fix bug in index bounds for N-S internal exchange (hard to tell if this
633      had any effect on the solution).
634    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
635      is exceeded
636    o testreport: modify syntax of awk, so that it works also with
637      awk, and not only with nawk and gawk
638    
639    checkpoint61
640    o autodiff
641      Change default for TAF usage by removing argument '-nonew_arg'
642      This changes TAF subroutine argument list (ordering of active var.)
643      Omission of this flag leads to incompatibility w.r.t. TAMC
644      To restore TAMC-compatibility, need following modifs:
645      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
646      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
647      Tested TAF version is 1.9.22
648      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
649    
650    checkpoint60
651    --->>> This is the last checkpoint for which generating the adjoint
652    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
653    --->>> by default.
654    --->>> Future checkpoints will ommit this flag by default.
655    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
656    o pkg/grdchk: Add gradient check to etan0 perturbations.
657    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
658    o pkg/autodiff: more flexibility in zeroadj.
659      model/src: modifying do_oceanic_phys.F accordingly.
660    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
661    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
662      special setup of gmredi for which the adjoint is stable
663      enough for parameter optimization.
664    o bridging the gap between eddy stress and GM.
665      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
666          along with a change in CPP option (now ALLOW_EDDYPSI).
667      -> when using GM w/ GM_AdvForm:
668          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
669          is applied either in the tracer Eq. or in momentum Eq.
670          depending on data.gmredi (intro. GM_InMomAsStress).
671      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
672      The key modifications are in model/src/taueddy_external_forcing.F
673      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
674    
675    checkpoint59r
676    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
677      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
678      fix option to read coriolis(@ cell-corner) from files with CS-grid.
679    o pkg/mnc: add some attributes to standard 1D-coordinate variables
680    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
681      mass points, when using mnc for output
682      - add runtime parameter (missing_value, missing_value_int) to override
683        default (which is the value of getcon('UNDEF'))
684    o pkg/mnc: prepare mnc for the actual use of missing values with the
685      diagnostics package: small fix in mnc_cw_readwrite.template and more
686      initialisation of never used fields
687      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
688      versions
689    o pkg/thsice/thsice_ini_vars.F added default initial values so that
690      thermodynamics sea ice solver does not blow up when some initial fields
691      are missing.
692    o move from external_forcing_surf.F to ini_forcing.F
693      the p-coord. hack consisting in using pLoad to set phi0surf ;
694      update output of tutorial_global_oce_in_p (affected @ truncation level).
695    o Freshen up a bit hs94.1x64x5, notably:
696      remove rotationPeriod and tRef=5*0. (adjoint only), and add
697      exactConserv=.TRUE.
698    o pkg/generic_advdiff:
699      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
700      applies to files where Temperature & Salinity 2nd Order moments are used.
701    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
702      this uses a dynamically allocated internal state data structure
703      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
704      and requires a fortran 90 compiler
705    
706    checkpoint59q
707    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
708       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
709    o Refresh tutorial_global_oce_biogeo, notably:
710      - change bathymetry (put back seamounts in ACC, use hFacs)
711      - change EOS (POLY3 --> JMD95Z)
712      - use Bryan-Lewis vertical diffusivity
713      - use multidimensional advection
714      - remove old virtual virtual in dic pkg, now done through ptracer pkg
715      - change a couple of parameters in dic pkg
716    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
717    o pkg/obcs: change default to OBCSfixTopo = .true.,
718      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
719      - replace "debugMode" with "debugLevel .GE. debLevB"
720    o implementation of TAF directives for gchem,cfc,dic
721    o remove "exp5" (replaced by tutorial_deep_convection).
722    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
723      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
724      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
725      --> changes results in exp4, seaice_obcs
726    o tutorial_deep_convection :
727      update the set-up and increase resolution and domain size ; start
728      from pseudo initial conditions = output at t=120mn in order to see
729      something happening when running testreport.
730    o pkg/seaice: add os7mp as an advection scheme
731                  add check for advection schemes
732                  add a flag for restoring T and S underneath sea ice
733    o pkg/my82: add netcdf-support and diagnostics
734    o thsice pkg:
735      - Now hsMax limits snow height by turning it into ice following
736        flooding scheme (and now conserving energy)
737      - Slight rewriting of the formula in thsice_calc_thick.F
738      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
739      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
740    
741    checkpoint59p
742    o gchem / dic / cfc :
743      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
744      - add new parameter files: "data.dic" & "data.cfc" ;
745      - various re-arrangement in initialisation & header file ;
746      - fix tutorial_global_oce_biogeo for multi-threaded test.
747    o pkg/dic: test for "pickup_dic" file when restarting ;
748      if no pickup-file, can restart with a re-initialised pH (same as it did
749      before) providing pickupStrictlyMatch is set to False.
750    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
751      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
752    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
753      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
754    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
755     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
756       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
757    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
758       scheme to use for vorticty-term ;
759     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
760       (with default selectVortScheme, return to original discretisation)
761     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
762    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
763    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
764      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
765      also fix diagnostics VISCAHW & VISCA4W.
766    
767    checkpoint59o
768    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
769    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
770      move a few statemens out the main loop into separate loops
771    o pkg/shelfice:
772      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
773        (kg/m^2/s), does not break tests, because in verification/isomip,
774        rhoConstFresh=rhoConst (by accident)
775      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
776      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
777        new file model/src/seawater.F, so that they are available for all pkgs.
778      - convert potential temperature into in-situ temperature. This changes the
779        isomip tests => update tests
780    o add a flag writePickupAtEnd (default=true) to be able to suppress
781      writing a pickup at the last timestep
782    o tools/mpack-1.6 :
783      - disable automake (not working) and autoconf (not needed).
784      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
785        also cleaner with much less compilation warnings.
786    o pkg/profiles:
787      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
788      (for "less than 32 characters name" compiler requirement)
789    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
790      conditions that have a different sampling frequency than S/T/U/V obcs
791    o pkg/diagnostics (stats-diags):
792      - fix global Min/Max in case 1 processor get only empty tiles
793    o genmake2: replace (4 times)
794         make genmake_tc_1.o >> genmake_warnings 2>&1
795      with
796         COMM="$CC $CFLAGS -c genmake_tc_1.c"
797         echo $COMM >> genmake_warnings
798         $COMM >> genmake_warnings 2>&1
799      to make genmake2 always see the value of CC as specified in the optfile.
800    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
801      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
802      - modify verification advect_cs test to test SOM-advection on CS-grid.
803    o pkg/ctrl:
804      - Rewrite of ctrl_map_ini_ecco.F,
805        introducing a generic routine (ctrl_map_ini_gen.F).
806      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
807    
808    checkpoint59n
809    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
810      number in dedicate array "hdiag":
811      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
812        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
813      - many small changes (integer format) for large number of diagnostics
814      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
815        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
816    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
817      usingSphericalGrid, this allows to define the rotated grid coordinates
818      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
819      geographical coordinates according to the inverse of the rotation defined
820      by the Euler angles, so that Coriolis parameter and online-interpolation by
821      exf works with the geographical coordinates on XC/YC/XG/YG.
822      Naturally, this feature does not work with all packages, so some
823      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
824      profiles), because there the coordinates are assumed to be regular
825      spherical grid coordinates.
826    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
827      - introduce isopycnal diffusion coefficient control.
828    o tools/adjoint_options:
829      - additional control vector components.
830    o pkg/mnc: have mnc create marginally meaning full coordinate variables
831      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
832    o pkg/mypackage:
833      - add example of read/write pickup for state-var ;
834      - add entry points to the main code for state-vars diags & write-pickup.
835    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
836      transitions for useExfYearlyFields
837      - add new subroutine that determines the file to read from for
838        use*YearlyFields = .TRUE. and .FALSE.
839      - add a verification experiment to global_with_exf that tests
840        useExfYearlyFields with USE_EXF_INTERPOLATION defined
841    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
842      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
843      subroutines (which could be generated from a template, because they are
844      almost identical), for now they are included in obcs_prescribe_read.F for
845      simplicity
846    o pkg/exf:
847      - add a little more diagnostic to exf_interp_read (in analogy to
848        mds_read_field, can be turned off with debugLevel < debugLevA=1)
849      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
850        ugly but fast by unrolling short inner loops, inserting a unroll=8
851        directive in routine lagran, and splitting a loop and making do while the
852        outermost loop (the latter requires the intoduction of index arrays)
853    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
854    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
855      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
856    o verification/seaice_obcs: updated for restart test and latest options
857    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
858      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
859      for now this is only available for the C-grid code and also within
860      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
861    
862    checkpoint59m
863    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
864      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
865    o gad_som : fix flux output (& diagnostics) to have same units as other  
866      advection scheme fluxes (was previously multiplied by deltaT).  
867    o added verification/seaice_obcs both to test seaice open boundaries
868      and to provide an example matlab scrpt for generating them
869    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
870    o pkg/salt_plume: clean up salt_plume_frac.F to
871      remove redundancy in PlumeMethod 1 and 4
872    o pkg/kpp: added saltplume diagnostics
873    o pkg/obcs and pkg/seaice:
874      - do not set uice and vice to zero when OB*icefile are unspecified
875      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
876      - moved seaice tracer obcs after call to seaice_growth
877    o pkg/salt_plume: added various options for salt plume depth
878      criterion and for vertical distribution of the salt
879    
880    checkpoint59l
881    o pkg/ptracers: new version of ptracers pickup:
882      read meta file and write only fields which are needed to restart.
883      ( same logic as main pickup file ; also using pickupStrictlyMatch )
884    o pkg/seaice:
885      - add timescale for melting due to warm mixed layer as a means of
886        setting SEAICE_availHeatFrac more conveniently
887      - add a CPP-flag/runtime parameter check for flooding algorithm
888      - reformulated availHeat in seaice_growth.F to be independent of AREA
889    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
890      unit changes
891    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
892    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
893      SX vector computer.
894    o pkg/seaice:
895      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
896        seaice forcing fields can now be read only through pkg/exf
897      - removed some unused halos
898    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
899    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
900      or U/VICE from U/VWIND before computing U/VSTRESS
901    
902    checkpoint59k
903    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
904      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
905    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
906      all experiments pass when compile with un-initialised var. checking option.
907    o added pkg/salt_plume
908    o script to test restart (for now, in MITgcm_contrib/jmc_script)
909    o pkg/seaice: new read/write pickup version.
910      read meta file and write only fields which are needed to restart.
911      ( same logic as main pickup file ; also using pickupStrictlyMatch )
912    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
913    o lab_sea.hb87: modify the domain & update output.hb87.txt :
914      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
915      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
916      process. Fixed here by closing the domain at the Northern boundary.
917    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
918    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
919      a set of consecutive levels in/from a 3-D array.
920    o pkg/ptracers:
921      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
922      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
923    
924    checkpoint59j
925    o in pkgs: dic, obcs, offline, rbcs:
926      standard way to compute coeff. for time interpolation between 2 time reccords
927      which retains full precision (& make results less dependent on compiler).
928      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
929    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
930      packages instead of reading ice cover and wind speed separately
931    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
932     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
933      to allow to compile customized code before the update)
934    o cleaning-up:
935      - fix CPP instruction syntax in pkg/obcs
936      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
937        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
938      - fix some threads issue in IO parts.
939    o pkg/dic:
940      - add tons of "_d 0" (--> much better testreports !)
941       and then update outputs of tutorial_global_oce_biogeo
942    o pkg/mom_fluxform:
943      add a special version of momentum advection intended to conserve momentum
944      next to a bathymetry step or a coastline edge. (default = off = #undef)
945    o new read/write pickup version:
946      - for now, only implemented for main (mdsio) pickup file.
947      - write out only what is needed to restart; merge pickup_nh , pickup_ph
948        and main pickup together.
949      - read meta file; read only what is needed to restart; stop if a field
950        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
951        if it make sense (even if the restart is not perfect).
952      - if no meta file, assume that pickup to read corresponds exactly to
953        a pickup that would currently be written.
954      - read pickup written in the old format (until checkpoint59i) if it
955        recognizes an old meta file (no field-list).
956      - add a meta file in exp. which starts from a pickup: 2 cases:
957        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
958         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
959        b) a meta file describing the content of the associated pickup file
960         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
961    o pkg/mdsio & pkg/rw:
962      - new routine to read a meta file ; new set of routine to read
963        Multiple-fields file (with meta file).
964    o added open boundary conditions capability for seaice
965        HSNOW, HSALT, UICE, and VICE
966    
967    checkpoint59i
968    o adjoint:
969      * fix multiDimAdvection adjoint
970        (partial recomputation problem by TAF for fVerT(:,:,kDown)
971        and comlev1 size definition (maxpass vs. max. number of tracers)
972      * verification/global_ocean.90x45x15 adjoint now tests
973        NLFS and multiDimAdvection using DST3 (=30)
974      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
975    o pkg/kpp: add "_d 0" to real constant (if missing);
976      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
977      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
978    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
979      for internal parameters related to restart process (formerly from PARAMS.h)
980      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
981    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
982      as argument. (only atm2d & obcs write_pickup have not yet been updated)
983    o pkg/monitor:
984      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
985      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
986      - account for deep Atmosphere factor and density factor (anelastic)
987    o added open boundary conditions capability for seaice HEFF and AREA
988    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
989      thermodynamics
990      - requires a little reorganization, which affects the testreport results
991        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
992        so that now the conservative form is tested
993      - add a few comments
994    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
995    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
996    o add new diagnostics to seaice: advective, diffusive fluxes (only for
997      multidim-advection, for scheme 2 they are not filled) and transports,
998      thermodynamic growth rates
999    o change units of EmPmR (inside the code, + within coupling interface)
1000      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
1001      Affects results @ truncation level (cg2d match) and update output of
1002       experiments: lab_sea(6), global_ocean.90x40x15(10),
1003      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
1004      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1005      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1006      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1007    
1008    checkpoint59h
1009    o pkg/exf:
1010      - improve vectorization by moving if-statement out of loops in
1011        exf_mapfields, exf_radiation
1012      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1013    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1014    o testreport:
1015      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1016        monitor & update offline_exf_seaice exp. output.
1017      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1018    o pkg/seaice:
1019      - bug fix in the evp solver: boundary conditions were affected be
1020        masking of zMax/zMin (changes results)
1021      - minor bug fix in boundary conditions in seaice_calc_strainrates
1022        (changes results for no_slip)
1023      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1024      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1025      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1026        stress formulation and no-slip boundary conditions
1027    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1028      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1029    o pkg/seaice: a first HSALT time stepping equation has been checked in
1030    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1031      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1032      without requiring DO-IF statements
1033    o pkg/thsice:
1034      use continuous power-law function for partition of energy between lateral
1035      melting/freezing and thinning/thickening ; old code using step function
1036      still available with #undef THSICE_FRACEN_POWERLAW
1037      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1038    o testreport: change AD testing : check against results/output_adm.txt
1039      using same scripts as for forward test.
1040    
1041    checkpoint59g
1042    o adjoint testing: in preparation for changing testreport:
1043      - output format: cost and grad written on separated lines
1044      - ad output results in directory "results" (instead of "results_ad")
1045    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1046    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1047    o pkg/ecco: allow user defined cost function contributions
1048    o testreport:
1049      Allow to choose (per experiment) the list of tested output variables
1050       and the main variable (used to issue a pass/FAIL ) ;
1051      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1052      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1053      Also modify printing of summary:
1054       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1055       b) echo the list of tested variables in the individual summary.txt of
1056          each experiment.
1057    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1058      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1059      (but still depend on the tile decompostion of the domain).
1060    o pkg/seaice: change a discretization detail to make the B-grid code
1061      "more symmetric". This change is likely to remove all "ridges/leads" that
1062      where quasi-aligned with the grid in B-grid solutions. It may also be
1063      the solution to the stress coupling issues with the B-grid.
1064    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1065      remove .cvsignore from input dir. (since testreport no longer run here).
1066    o pkg/thsice:
1067     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1068     - fix reshaping of sea-ice just after advection:
1069       melt all the ice only if ice-volume is too small.
1070     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1071       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1072     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1073    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1074      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1075    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1076      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1077      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1078      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1079      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1080      -> update output.txt
1081    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1082     this affects truncation error: -> update output.txt of exp:
1083      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1084      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1085    
1086    checkpoint59f
1087    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1088    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1089      a bounded range (in forward mode)
1090    o pkg/ecco, ctrl, autodiff and mom_common:
1091     internal parameter controls, completements of implementations
1092    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1093    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1094      (not seem any difference in testing results).
1095    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1096       at face corners.
1097    o pkg/generic_advdiff:
1098     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1099      loop range indices for computing vertical advection tendency
1100      and do the calculation in the interior only (no overlap) ;
1101      for now, only implemented for SOM advection (to save CPU time).
1102     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1103    o exch2 adjoint
1104      First set of changes:
1105      - add exch2 hand-written adjoint templates
1106      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1107        This will require cleanup in pkg/autodiff/*.F
1108        (changed routines currently kept separate in verif. code/)
1109      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1110        that used to hide exch2 or cubed-sphere specific code
1111        (commented via 'cph-exch2')
1112    o pkg/seaice
1113      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1114    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1115       output of global_ocean.cs32x15.thsice .
1116    
1117    checkpoint59e
1118    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1119      for B-grid vector (not yet tested) and C-grid vector (<- only used
1120      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1121    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1122      (#ifdef ALLOW_SALT_PLUME)
1123    o gather_2d/scatter_2d: removed halo regions
1124    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1125      scheme and the corresponding test case (under front_relax dir). For now,
1126      only available with Skew-flux form and not yet tested in realistic set-up.
1127      adjoint: store directives updated, but gradient checks deteriorated,
1128      so maybe GM/Redi adjoint is now broken.
1129    o seaice adjoint
1130      * add AREA, HEFF, HSNOW as control variable
1131        (should not change lab_sea results)
1132      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1133    o pkg/seaice:
1134      * added computation of saltFlux in seaice_growth;
1135        For time being, sea ice salinity is assumed constant
1136        contribution of snow flooding to freshening of sea ice is neglected.
1137        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1138        defaults to 0.0 in order to maintain backward compatibility.
1139        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1140      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1141      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1142        heat content used to melt or grow ice
1143      * commented out cap of HICE: it helps keep ice thinner
1144      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1145      * applied OBCS T/S mask to HEFFM sea ice mask
1146    
1147    checkpoint59d
1148    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1149     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1150     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1151    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1152     and change default value of parameter "GM_Small_Number";
1153     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1154       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1155       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1156    o pkg/ecco: cost function when applying pkg/smooth to controls
1157    o pkg/ctrl: add forcingPrecond run time parameter
1158    o pkg/seaice:
1159     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1160     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1161       changes verification/lab_sea
1162     - rearrange implicit part of u-equation in LSR solver to make it easier to
1163       read, understand, and debug. This causes changes at the truncation level.
1164     - fix (serious) bug in the boundary conditions (sign error in the implicit
1165       part) of the LSR solver. Changes all LSR results.
1166     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1167       is initilized with small values - does not change lab_sea results.
1168     - added HsnowFile initialization capability
1169    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1170     initialization of pkg/smooth and application to control vector
1171    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1172    o dependencies: pkg/profiles requires pkg/cal
1173    o pkg/profiles:
1174     - added option ALLOW_PROFILES_GENERICGRID
1175         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1176         that interpolation information (grid points and coefficients) is provided
1177         within the netcdf input files.
1178         -> sample matlab scripts can be found in MITgcm_contrib/gael
1179         that allow you to prepare netcdf input files.
1180     - also modified: cleaner include statements, cleaner error print statements,
1181       cleaner stops when error, and more tests of the netcdf input files consistency.
1182    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1183    o pkg/seaice:
1184     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1185       requires a new routine: seaice_diagnostics_fill.F
1186     - make sure that seaice does not move if not forced (pressure replacement
1187       method, Hibler and Ip, 1995), changes results
1188     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1189     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1190       It is turned off by default (=-1.), because it changes the results.
1191     - make it possible to read AREA from a file, too.
1192    
1193    checkpoint59c
1194    o add S/R and diagnostics for oceanic mixed-layer depth
1195    o move GMRedi call after all vertical mixing schemes (including KPP)
1196    o pkg/thsice:
1197     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1198      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1199    o pkg/obcs:
1200     - bug fix for balance code
1201    o pkg/seaice:
1202      - allow values of SEAICE_elasticParm > 1
1203      - add new parameter SEAICE_evpTauRelax as an alternative
1204        to SEAICE_elasticParm
1205      - make lsr boundary conditions free slip (by default), changes result
1206      - add code for no slip boundary conditions for lsr
1207      - set minimum of zeta to zero (and not 4e8) (changes results)
1208      - add a cap on AREA after advecting AREA if seaice_growth is not called
1209    o change calculation of Visbeck K:
1210      - no longer depend on tapering scheme; instead, compute slope (limited
1211        by GM_maxSlope). this is equivalent to what was comuted before with
1212        clipping or linear tappering.
1213      - fix vertical averaging (wrong by 1/2 level)
1214      - leave the old version (but will not be maintained) within
1215        #ifdef OLD_VISBECK_CALC / #endif
1216      - update output of exp. ideal_2D_oce
1217    o change error catch in calc_r_star to improve vectorization
1218    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1219      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1220    o adjoint:
1221      Re-organized adjoint checkpointing according to Matt Mazloff
1222      (but with modifs/completions/cleanups)
1223      Storing is now bundled into large arrays to optimized I/O
1224      (and second step in cleanup of the_main_loop)
1225    
1226    checkpoint59b
1227    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1228      - export/import (between ocean & coupler) fields needed for ocean DIC.
1229    o pkg/seaice:
1230      - get rid of three more exchanges seaice_calc_viscosities (required
1231        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1232      - bug fix in seaice_ocean_stress (update of lab_sea required)
1233      - reduce loop boundaries to necessary minimum also in seaice_evp
1234      - go back to the old way of computing deltaC/Z as the adjoint likes that
1235        better
1236    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1237      passive tracer to an Age Tracer) + update output.txt
1238    o pkg/exf:
1239      - implement A-grid / C-grid selection for wind-stress input files.
1240      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1241      for now, in exf_bulk_largeyeager04.F only :
1242      - change implementation for case where windspeed + 2. components wind-stress
1243        are read-in. AND use rhoConstFresh to convert evap.
1244    o pkg/seaice:
1245      - use correct EXCH_UV for wind-forcing (on A-grid).
1246      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1247        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1248    o pkg/exf:
1249      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1250      EXF_INTERPOLATION:
1251      - merge global_with_exf/code version of exf_interp_read.F
1252        to the main code ;
1253      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1254        reading the file ; Important: This options needs to be defined to recover
1255        previous code.
1256        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1257      - no longer loose real*8 precision along the way when using exf_iprec=64.
1258    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1259      - change discretisation of evp-solver in order to avoid another exchange
1260        (changes lab_sea) and clean up a little
1261      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1262        help the adjoint (this also changes the results slightly)
1263      - add a few "_d 0" where they had been missing in seaice_evp.F
1264      - cleaning up: remove unused seaice_calc_rhs.F
1265    o pkg/exf: some cleaning-up:
1266      - change various "constants" into runtime parameters
1267      - cleaned-up Large&Yeager04 routine which should eventually
1268        replace exf_bulkformulae.F (changed names of S/R and CPP)
1269        and merged various ALLOW_ATM_WIND options
1270     only used with thsice pkg (in thsice_get_exf.F):
1271      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1272        which are used when useStabilityFct_overIce=TRUE (= the default)
1273      - change default values of ice & snow emissivity and scale downward LW
1274        by ice & snow emissivity.
1275    o pkg/thsice:
1276     fix few little problems, in thsice_calc_thickn.F:
1277      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1278      - melt only laterally if hIce < hThinIce (as the comments say)
1279      and in thsice_extend.F:
1280      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1281      - start to form ice as soon as the minimum ice-volume is reachable.
1282     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1283      and cpl_aim+ocn
1284    o pkg/kpp
1285     - move computation of surface related input fields to KPP into a new
1286       subroutine kpp_forcing_surf.F
1287     - remove wrong (within bi,bj loops) EXCH calls.
1288     - little cleaning (add argument myThid in last position, cvs header ...)
1289     - for now, fix conservation problem by exchanging KPPviscAz (may not
1290       be the best fix)
1291    o pkg/seaice
1292     - check for inconsistent evp parameter/cpp-flag combination
1293     - remove leftover errIO flat for obsolete name list error handling
1294    o OpenAD
1295     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1296    
1297    checkpoint59a
1298    o pkg/seaice: some parameter clarifications and a little bit of clean up
1299    o pkg/thsice: rename run-time parameters:
1300       himin       -> hIceMin
1301       himin0      -> hThinIce
1302       hihig       -> hThickIce
1303       i0          -> i0swFrac
1304       transCoef   -> bMeltCoef
1305       frac_energy -> fracMelting
1306      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1307       with default values (for now) that do not change the results.
1308      remove old version of thsice vars advection in pkg/seaice.
1309    o in FFIELDS.h:
1310      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1311      - make pLoad & sIceLoad always available (but still only used if
1312         ATMOSPHERIC_LOADING is #define).
1313    o pkg/kpp: replaced _KPP_RL with _RL
1314    o bug fixes for vertical diffusivity computations when both KPP and
1315        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1316        are no longer updating the vertical diffusivity array
1317        (passed as argument) but are (re-) setting those arrays.
1318    o pkg/seaice: fix bug in evp solver, while doing that
1319      - change (improve?) discretization of stress computations for both
1320        cgrid-lsr and evp solver
1321      - add a new routine to compute strain rates
1322      - the above changes lab_sea results
1323      - add no slip conditions for evp solver (off by default), lsr-version
1324        may follow
1325      - fix exchange for shear at Z-points (does not change lab_sea)
1326      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1327        (to force the user to pick a time step since there is not "safe" way
1328        of choosing it)
1329      - add principal stress diagnostics
1330      - rearrange fields for evp a little to avoid having to call a: too many
1331        exchanges and b: exchanges for stress trensor components which we do
1332        not have.
1333      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1334        of evp, complete rewrite for lsr case (latter is does not yet work
1335        in all cases)
1336    o pkg/kpp: add code to have mixing in shelf ice caverns
1337      - add myThid to all kpp routines (long overdue)
1338    
1339    checkpoint59
1340    o pkg/exf:
1341      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1342        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1343      - move exf header files from lower_case.h to UPPER_CASE.h ;
1344        add missing cvs Header & Name
1345      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1346      - add namelist param. selectStressGridPosition, exf_monFreq
1347      - retire many _CLIM routines, and remove data.exf_clim
1348        + params moved to data.exf
1349        + climsst, climsss now handled by exf_set_gen, i.e.
1350          climss?period=0 refers to constant field,
1351          climss?period=-12 to monthly forcing
1352      - split up namelists in data.exf
1353    o pkg/seaice:
1354      - remove seaice_exch and seaice_exch_uv
1355      - remove superfluous exchange of theta
1356      - add myThid to seaice_budget_ocean/ice
1357      - add new interface for atmospheric wind forcing (C-grid only)
1358        + new routine
1359        + two new field (taux, tauy for stress over ice)
1360        + removed one global field (DAIRN) for C-grid case only
1361    o pkg/thsise
1362      - 2nd set of modifs for thsice adjoint in conjunction with exf
1363    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1364    
1365    checkpoint58y_post
1366    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1367      vertical diffusivity, similar to that in MOM4; turned on using
1368      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1369      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1370    o Added capability for 3D specification of background vertical diffusion
1371      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1372      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1373      "data" file that contains the 3D vertical diffusivity coefficients.
1374    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1375      - add code within pkg thsice to advect & diffuse sea-ice fields
1376      similar to (and will replace) what has been added in  seaice_advdiff.F,
1377      but: - conserving Mass, Heat & Salt.
1378           - better when using non-linear advection scheme (not yet fully tested)
1379           - can also be used in atmospheric set-up (for now, only the diffusion).
1380    
1381    checkpoint58x_post
1382    o IO option for global-file compact format:
1383      - add options when generating topology (utils/exch2/matlab-topology-generator)
1384      - add I/O capability (pkg/mdsio).
1385      - adapt utils/matlab/rdmds.m to read this format.
1386      for now long-line format not yet supported by pkg/mdsio (& exch2).
1387    o shelfice: add a few diagnostics
1388    
1389    checkpoint58w_post
1390    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1391      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1392      (and replace horiVertRatio in NH code).
1393      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1394                         and tutorial_plume_on_slope (sensitive to truncation)
1395    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1396      directly to drive seaice model (C-grid only)
1397    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1398     - reintroduce computation of wind from stress,
1399     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1400       mass points to avoid tau = 0
1401     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1402    o rdmnc.m: make it work with "global" files created with gluemnc
1403    o rdmnc.m : some improvements in dealing with singleton dimension
1404      (tested on all testreport mnc output files).
1405    o genmake2: disable pkg/profiles if netcdf test fails.
1406    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1407    o move call to cal_readparms up to make calendar parameters/variable available
1408      to all packages
1409    
1410    checkpoint58v_post
1411    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1412      useDynP_inEos_Zc tested.
1413    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1414    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1415      and portions thereof.  See read_cs.txt for description and examples.
1416    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1417      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1418      following the great-circle arc between those 2 points.
1419    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1420      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1421    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1422     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1423     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1424     - still needs work (not working with some options ; efficiency to improve)
1425       and serious testing.
1426     - use this scheme for temperature & salinity in 2 advection test exp.:
1427       advect_xy & advect_xz, respectively.
1428    
1429    checkpoint58u_post
1430    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1431    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1432    o testreport: add option "-skipdir" to skip some test.
1433    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1434      momentum calculation.
1435    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1436    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1437      remove checkpoint.F and the_correction_step.F (no longer used);
1438      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1439    o add option (linFSConserveTr) to correct for tracer source/sink due to
1440      Linear Free surface
1441    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1442    o pkg/thsice: fix reading mnc-pickups
1443    
1444    checkpoint58t_post
1445    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1446    o pkg/mdsio:
1447     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1448       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1449       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1450     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1451     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1452       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1453     - new S/R (to replace MDSWRITEMETA), which allows to write more
1454       informations (variable names, time ...) to meta files.
1455     - modify rdmds.m to give back the meta file content.
1456    o pkg/diagnostics: change vertical interpolation to be safer, and more
1457       flexible (define p-levels to interpolate to in data.diagnostics);
1458      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1459       diagnostic pointer.
1460    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1461    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1462    o fix multi-category seaice:
1463     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1464       SEAICE_MULTICATEGORY
1465     - fix short wave heat flux
1466    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1467       and allow to use EVP solver. Change forward lab_sea: test both EVP
1468       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1469    o Initial check-in of lab_sea adjoint
1470      (very similar to natl_box_adjoint/code_seaice)
1471      * used C-grid and EVP solver
1472      * used KPP, GM/Redi
1473      * uses inAdExact=.TRUE.
1474      * gradient checks fail for both ADM and TLM
1475        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1476        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1477        issue is related to forward mismatch between g77 an ifort
1478    o pkg/seaice: overhaul of thermodynamics
1479     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1480     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1481     - move a few global fields out of SEAICE.h into seaice_growth.F and
1482       make them 2D (FICE/QNETO/ ...)
1483     - remove FO (it is the same as QNETO)
1484     - introduce a few local fields to avoid modifying external fields such
1485       as atemp, etc.
1486    
1487    checkpoint58s_post
1488    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1489      changed exf_set_gen.F so that
1490        genperiod=0 means input file is one time-constant field and
1491        genperiod=-12 means input file contains 12 monthly means
1492    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1493      this affects truncation error ; generate new output file for exp. which
1494      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1495        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1496        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1497        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1498        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1499        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1500    o start implementation of deep-atmosphere and anelastic formulation
1501    o verification: remove 2nd copy of input files and use script "prepare_run"
1502      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1503    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1504    o profiles: fix for multithreaded case
1505    
1506    o diagnostics: rename few diags:
1507      s/'PRESSURE'/'RCENTER '/g
1508      s/'TICE    '/'oceFreez'/g
1509      s/'TAUX    '/'oceTAUX '/g
1510      s/'TAUY    '/'oceTAUY '/g
1511      s/'SWFLUX  '/'oceQsw  '/g
1512      s/DIFx/DFxE/g
1513      s/DIFy/DFyE/g
1514      and add few ocean-forcing diagnostics:
1515      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1516    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1517      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1518      as actual snow thickness.  It now refers everywhere to effective snow
1519      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1520    
1521    checkpoint58r_post
1522    o modifications to pkg/seaice/growth.F, which change results of
1523      lab_sea experiment: fixes pertain to melting snow over open water, to
1524      masking EVAP under sea ice, and to using the correct AREA variable for
1525      computations of EVAP, PRECIP, HSNOW, and GHEFF
1526    o add ability to read bathy, salt, and theta using MNC (off by def)
1527    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1528      both are turned off by default and do no change any results
1529    o seaice advection with pkg/thsice: a step toward the use of non-linear
1530      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1531    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1532      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1533      in natl_box (affects results @ truncation level: update output.txt)
1534    o multi-threading and IO:
1535      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1536      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1537        (needed to work with SingleCpuIO): tested in all verif. exp.
1538    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1539      affects the results (but none of the verification test uses this scheme).
1540    o Adding some pkg/diagnostics capability to pkg/seaice
1541      (will certainly be subject to changes)
1542    o ctrl: adding new control variables:
1543      lwflux, lwdown, evap, snowprecip, apressure, runoff
1544    
1545    checkpoint58q_post
1546    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1547      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1548      high_res_cube configuration by 4% on Columbia.
1549    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1550      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1551      dynamical allocation (seems to work in multi-threaded).
1552    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1553      single CPU io) so that TAF does not have to see EESUPPORT.h
1554    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1555    
1556    checkpoint58p_post
1557    o obcs: stop if obcs is used with useCDscheme = .true.
1558    o shelfice:
1559     - fix a sign error so that no slip at shelfice interface works
1560     - remove stop for combination non-hydrostatic code and shelfice. That does
1561       not mean, that the results are correct, but at least they are numerically
1562       stable
1563    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1564    o added adjoint exch routined for all exch*3d* routines
1565      and updated flow directives
1566    
1567    checkpoint58o_post
1568    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1569      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1570    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1571      and clean-up reading/writing of pickup files.
1572    o fix local version of read/write pickup (NH part) in rotating_tank/code
1573    o simplify EXCH interface:
1574     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1575     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1576    o added the regrid package
1577    o shelfice:
1578     - add a simple boundary layer scheme to reduce noise
1579     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1580    
1581    checkpoint58n_post
1582    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1583       local variable (not in common block).
1584    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1585      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1586      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1587        to work with SingleCpuIO.
1588    o add "_d 0" to real constant of pkg/cfc subroutines ;
1589       update exp. cfc_exemple & tutorial_cfc_offline output files.
1590    o multi-threading and IO:
1591      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1592        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1593      - barrier before and after reading.
1594      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1595      - avoid using MDS_WRITELOCAL for LAND pkg output.
1596      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1597        common-block variables ; Allows multi-threading with master-thread IO.
1598    o change default MAX_NO_THREADS from 32 to 4 ;
1599      and stop cleanly when MAX_NO_THREADS is too small.
1600    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1601    
1602    checkpoint58m_post
1603    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1604       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1605    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1606       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1607       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1608    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1609        add MITgcm_tutorials (= code + all the tutorials)
1610    o ecco, option to compute cost for total ssh (mean+anom)
1611    o consistent with addition of ptracer and ssh in pkg/profiles
1612    o profiles: adding ptracer and ssh
1613    o testreport: change multi-test output-file name
1614      (from output.txt.{name} to output.{name}.txt)
1615    o profiles: now ok for mutli-tiles case
1616    o seaice: add 4 parameters for different advection schemes for area,
1617      (effective) seaice thickness, enthalphy, and snow height. Their default
1618      is the standard parameter SEAICEadvScheme
1619    o calc_gw:
1620     - add cosFacU in zonal viscous flux (harmonic.visc.).
1621     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1622       of tutorial_plume_on_slope.
1623    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1624    o calc_gw: true flux-form, account for horizontal grid spacing.
1625      update rotating_tank results, but not plume_on_slope (affected at
1626      truncation level, 11 digits).
1627    
1628    checkpoint58l_post
1629    o calc_gw:
1630     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1631     - remove side-drag for now (need to fix it); update plume_on_slope results.
1632     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1633    o commit code to make SST/SSS weights spatially variable
1634      (based on either variable in-situ or variable initial T/S weights)
1635    o pkg/ecco:
1636      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1637        now based on horizontally varying weights wthetaLev, wsaltLev
1638      * cost_averagesflags now returns year indices in addition to day, month
1639      * sflux balance is performed on annual basis
1640        (sflxumm, sfluxmm2, bal_sfluxmm)
1641      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1642        including separate counting and multipliers
1643    o pkg/rbcs
1644      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1645    
1646    checkpoint58k_post
1647    o testreport:
1648     - always build in dir. "build" (if not there, mkdir build instead of building
1649       & running in input)
1650     - run in dir run (if it exists), in build otherwise.
1651     - call prepare_run (if input/prepare_run exists)
1652     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1653    o pkg/exf modifications to interpolation and rotation routines for more
1654       reasonable treatment of North Pole singularity: for tracers North Pole
1655       value is set to northernmost zonal-mean value, for zonal velocity it is
1656       set to zero, and for meridional velocity it is set to northernmost value.
1657    o pkg/exf/exf_check_range.F
1658     - add tile index to diagnostics and move stop statement to the very
1659       end of the routine.
1660    o pkg/diagnostics: (diagnostics_main_init.F)
1661      define title of isomorphic variables according to the current config.
1662    o pkg/thsice with pkg/seaice dynamics:
1663    - fix domain of computation (interior only, required for exf) and do exchanges
1664    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1665    o towards a standard way of dealing with multi-threading in MONITOR
1666      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1667    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1668       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1669    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1670    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1671    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1672       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1673    o tracer advection:
1674     - clean-up and simplify calc_common_factors.F
1675     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1676       advection subroutine (but still not used within DST advection S/R)
1677    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1678    
1679    checkpoint58j_post
1680    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1681      from file (collects calls previously in FORWARD_STEP)
1682    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1683    o adjoint store dir. adjusted accordingly
1684    o genmake2
1685      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1686    
1687    checkpoint58i_post
1688    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1689      on wind stress (SEAICEstressFactor defaults to 1.)
1690    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1691      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1692    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1693      on CS-grid: no longer loosing mass.
1694    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1695    o pkg/ggl90: fix sloppy output and fix a bug
1696    o pkg/seaice: added SEAICEuseEVPpickup parameter
1697      - Set to false in order to start EVP solver with
1698        non-EVP pickup files when using SEAICEuseEVP
1699      - fix sign error in diffusion in seaice_calc_rhs
1700    
1701    checkpoint58h_post
1702    * Modifications for bottom topography control
1703      o replace hFacC by _hFacC at various places
1704      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1705      o add non-self-adjoint cg2d_nsa
1706      o update autodiff support routines
1707      o re-initialise hfac after ctrl_depth_ini
1708      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1709    * Adding verification for 5x5 box (4-layer) bottom topography control
1710    
1711    checkpoint58g_post
1712    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1713       used for mean seasonal cycle, mean diurnal cycle); add an example
1714       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1715    o pkg/ggl90:
1716      - add parameter (minimum surface kinetic energy)
1717      - fix bug (avoiding division by zero)
1718    o couple pkg/thsice to pkg/seaice:
1719      - modify advection in seaice to accomodate new scalar fields to be advected
1720      - only muliDimAdection scheme work with seaice/thsice
1721      - mapping of thsice-variables to seaice-variables, back and forth
1722      - does not break the verification experiments, but does not give the
1723        desired results either
1724    o pkg/seaice
1725      - make (default) second order advection a bit less confusing?
1726    
1727    checkpoint58f_post
1728    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1729      to pkg/seaice):
1730      - new routines thsice_map_exf and thsice_get_exf provide the interface
1731      - add an additional formal parameter to thsice_solve4temp
1732    o pkg/exf:
1733      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1734      - correct Stefan-Boltzmann constant
1735      - new parameter for longwave surface emittance
1736      - separate some stuff from exf_bulkformulae into new routines  
1737        exf_radiation, exf_wind
1738      - add new parameters and constants: longwave emissivity for ocean, ice
1739        and snow, evaporation parameters over ice
1740      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1741        either wind from stress or stress from wind
1742    o pkg/thSIce:
1743    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1744    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1745       and THSICE_CALC_THICKN
1746    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1747    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1748      to make debugging easier.
1749    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1750    o pkg/bulk_force:
1751      - clean-up comments and parameters ;
1752      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1753    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1754      generate new output for test-experiment: aim.5l_cs.thSI
1755    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1756      testreport accordingly
1757    
1758    checkpoint58e_post
1759    o SEAICE_CGRID adjoint done
1760    o R_STAR adjoint implemented.
1761      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1762      * need to sort out init. of h0facc, etc.
1763    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1764      to be able to use it in pure forward.
1765    
1766    checkpoint58d_post
1767    o upgrade simple test-experiment to tutorial example:
1768     step.1: duplicate the experiment and (step.2) will remove the old copy.
1769      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1770      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1771      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1772      tutorial_global_oce_biogeo    <- copy of dic_example
1773      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1774      tutorial_plume_on_slope       <- copy of plume_on_slope
1775      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1776      tutorial_global_oce_optim     <- empty for now (David ?)
1777      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1778     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1779    o correct a sign problem in cost_scat.F
1780    o obcs and ptracers: fix boundary conditions for advections schemes
1781      with larger stencil
1782    o thsice adjoint: start
1783    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1784      completeness
1785    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1786      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1787    o ptracers adjoint:
1788      * avoid extensive recomputatations
1789      * fix missing re-init. of gptr (missed by TAF)
1790    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1791      me to turn off the excessive output to STDOUT that this package produces
1792    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1793      and add those terms in Vector-Invariant formulation.
1794    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1795      if the control period (xx_hfluxperiod etc) is 0
1796    o in profiles pkg, clean routines and fix details
1797    o in ecco pkg, reading ssh data:
1798      fix problem in case the model does not start at iter0=0
1799    o fix mnc-pickup/restart for ptracers
1800    o new package prifiles:
1801      code to compute profile-based cost by Gael Forget
1802      (modifs in ecco, ctrl, autodiff)
1803    o Benign bug fix in initialization (spotted by M. Mazloff) of
1804      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1805    
1806    checkpoint58c_post
1807    o adjoint: finish NLFS adjoint and provide reference output in
1808      verification/global_ocean.90x40x15/results_ad_nlfs
1809    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1810      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1811      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1812      with SEAICE_CGRID defined.
1813    o move calendarDumps from "data" to "data.cal" and clean-up the code
1814      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1815    o add useEXF & useCAL flags (for now, set in hard-coded way)
1816    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1817      (were missing in NH mode, and wrong in quasihydrostatic mode).
1818      waiting for Chris updated version of calc_gw to add those CALLs.
1819    o fix bug in quasihydrostatic S/R ;
1820      add a test for this option: global_ocean.90x40x15.qshyd
1821    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1822      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1823    o add on/off flag useOffLine for package OFFLINE
1824    o seaice:
1825      - modify advection so that it works also on the C-grid
1826      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1827        problem in multi-tile runs with C-grid
1828      - add flags for clipping ice velocities and/or masking solver forcing
1829      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1830        C-grid solver
1831      - added a few comments to seaice_diffusion.F
1832      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1833        are now exclusive)
1834      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1835        required re-ordering the code a little:
1836       + make DAIRN global variable (defined in SEAICE)
1837       + move computation of the viscosities eta and zeta into a new separate
1838         routine (because I need to recompute them in seaice_ocean_stress.F)
1839    
1840    checkpoint58b_post
1841    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1842      update output.txt of exp. aim.5l_cs.thSI
1843    o various mnc cleanups and improvements:
1844      + shrink lookup tables by factor of ~4
1845      + better error reporting when running out of lookup space
1846      + able to handle longer path/file names (up to 500 chars)
1847    o adjoint:
1848      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1849      - TBD: "hidden" mom_vecinv recomp. in dynamics
1850    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1851     (allow to differentiate between forcing components using new integer flags:
1852      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1853     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1854    o ecco
1855      - enable trend removal from SSH anomaly obs.
1856    o adjoint
1857      - a fix for PmEpR when #undef EXACT_CONSERV
1858      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1859      - try to fix "hidden" recomp. in forward_step for NLFS
1860        (NLFS seems broken sometimes after I checked it in)
1861    o seaice:
1862     - add c-grid version of the dynamic solver:
1863       + three new routines that are the c-grid substitute lsr, dynsolver
1864         and ostres
1865       + put a few fields that were local to dynsolver into global common
1866         blocks, so that I can move the computation of stresses etc into
1867         seaice_lsr (saves coding but may break the adjoint).
1868     - replace more hardwired parameters by runtime parameters
1869     - add ice masks that mask the rhs of the implicit solvers where there
1870       is no ice (commented out in seaice_dynsolver, because i am not sure
1871       if this works properly), eventually this should replace the clipping
1872       of ice velocities in seaice_dynsolver to +/-40cm/s.
1873    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1874      include it only where its needed
1875    o move balancing of fluxes before the call of external_forcing_surf
1876    o seaice:
1877      - correct units of turning angles (now they are really in degrees)
1878      - move computation of GWATX/Y out of main routine into dynsolver
1879      - initialize GWATX/Y in seaice_init
1880    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1881      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1882    o seaice: add runtime flags for turning angles (default to zero)
1883    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1884      and trend from exf forcing and ctrl control adjustments
1885    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1886      (since checkpoint57x_post)
1887    o change the default rotation period to 86164.s = the Earth rotation
1888    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1889      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1890    o seaice advection: add code for choosing between the default (2nd order
1891      central differences) and multiDim advection schemes provided by
1892      pkg/generic_advdiff
1893    o seaice:
1894      - removed all references to SEAICE_GRID.h fields from
1895        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1896        (cubed-sphere configuration will change a little)
1897      - grid computations in seaice_init are obsolete now.
1898      - cleaned up code a little so that is easier to read (hopefully).
1899      - added new (better?) discretizations of default advection and diffusion
1900        (turn on with SEAICEuseFluxForm)
1901      - replace 1 in 3d global fields by kSurface in growth.F
1902      
1903    checkpoint58a_post
1904    o seaice:
1905      - bug fix in advect.F
1906    o shelfice:
1907      - separate shelfice load anomaly from pload (breaks with time
1908        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1909        Its default is 0., but it may be computed more cleverly from (unknown)
1910        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1911        done offline. A good approximation of the pressure load anomaly is
1912        necessary to avoid large initial adjustment processes underneath
1913        deep-reaching shelfice.
1914      - small fix in ISOMIP shelfice_thermodynamics
1915      - add more sophisticated thermodynamics of Hellmer (1989), this is
1916        now the default
1917      - give a few constants more intuitive names
1918    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1919      if bulk formulae are used in long integration (especially EmPmR). Turn
1920      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1921      if balancePrintMean, the imbalance that is substracted is printed to
1922      STDOUT.
1923    o fix bug (typo) in obcs_apply_eta.F
1924    o add a new package shelfice which enables us to model the circulation
1925      underneath shelf-ice with draughts of hundreds of meters.
1926     - works
1927     - to do: + include improved thermodynamics
1928              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1929                instead of new field kTopC
1930              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1931                instead of new field R_shelfIce and new code in ini_depth.F
1932                and ini_mask_etc.F?
1933              + adjust vertical mixing schemes?
1934    o seaice pkg:
1935     - add a cpp-flag to include a simple formula for a salinity dependent
1936       freezing point of sea water at the surface
1937     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1938       meridional stresses are now different (and hopefully correct)
1939    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1940       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1941       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1942    o pkg/diagnostics: add options and parameters for regional-statistics
1943       diagnostics ; define regions by reading a region-mask from a file
1944       (might add other options later)
1945    o pkg/bulk_force:
1946     - add option and parameters to use AIM surface-flux formulae.
1947     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1948       others forcing fields (defined in PARM05, parameter file "data") are loaded
1949       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1950     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1951     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1952     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1953       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1954     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1955    
1956    checkpoint58
1957    o add "--embed-source" option to genmake2 which, when the supporting
1958      tools can be compiled (as determined by genmake2) will turn on the
1959      embed_files package which then embeds the entire MITgcm source code
1960      (*.[fFhc] + Makefile) used for the build within the executable
1961      - requested by CNH but off by default
1962      - adds a paltry <9MB to the mitgcmuv executable in most cases
1963      - only writes the output when useEMBEDSRC in eedata is true
1964    o clean up 3-dim. relaxation codes:
1965      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1966      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1967      * Thanks to Tom Haine for testing!
1968    
1969    checkpoint57z_post
1970    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1971      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1972    o fix the pickup behavior for obcs in combination with ptracers
1973    o fix a bug in ptracers_external_fields_load
1974    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1975      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1976    o transfered surface NH pressure to eta field (if exactConserv).
1977    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1978         and update lab_sea output.txt file.
1979    o completing 3-dim. relaxation code: additional term
1980         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1981      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1982      * At compile time, in "EXF_OPTIONS.h" set
1983          #define  ALLOW_CLIMTEMP_RELAXATION
1984          #define  ALLOW_CLIMSALT_RELAXATION
1985      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1986          tauThetaClimRelax3Dim = 15552000.0,
1987          tauSaltClimRelax3Dim  = 15552000.0,
1988      * 3 cases:
1989          1) Use a constant-in-time 3-dim. field
1990          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1991          3) Real-time relax. to time-evolving prescribed field
1992    o Adding Laplacian-type smoothness constraint on
1993      initial and boundary (forcing) controls (ic, bc)
1994      * enable at compile-time via
1995        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1996      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1997      * Absolute scale somewhat unclear so far
1998      * no area weighting was included since no other cost term does so far
1999    
2000    checkpoint57y_post
2001    First step for a NLFS adjoint
2002    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
2003    o new init. routines for calc_r_star, calc_surf_dr
2004    o still need to deal with ini_masks_etc
2005    o testreport seemed happy
2006    checkpoint57y_pre
2007    
2008    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
2009    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
2010    o add new offset feature to offline pkg (plus minor cleanup)
2011    o cfc fixes for final year of integration
2012    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
2013      be in GCHEM_OPTIONS).
2014    
2015    checkpoint57x_post
2016    o fix testreport Pb in multiple test experiment.
2017    o cleanup our namelist syntax in verification:
2018      - make it more F95 standards compliant (some work still needed)
2019      - allows the vast majority of our tests to work with gfortran
2020    o Non-Hydrostatic:
2021     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
2022     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
2023    o Allow to apply AB on T,S rather than on AB(gT,gS):
2024     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
2025     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
2026       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2027     - need a "clever" read_pickup to restart from the other AB formulation
2028    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2029    o remove some unused variables (reduces number of compiler warnings)
2030    o adjoint
2031      * Disable useVariableViscosity for adjoint for time being
2032        (there are a number of extensive recomputations)
2033      * Initialize certain variables needed for adjoint
2034    
2035    checkpoint57w_post
2036    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2037                 fix the singleCpuIO RS version of MDSWRITEFIELD
2038       and add a WARNING if using globalFiles=T with multi-processors.
2039    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2040      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2041    o tracer advection scheme:
2042      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2043       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2044       was not very convenient).
2045      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2046       (further tests needed for the implicit DST & Flux-Limiter schemes).
2047    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2048      and sRef for convenience, handy, when you want to initialize
2049      ptracers in a large domain with a constant non-zero value. Also,
2050      untangle ptracers_init.F a little.
2051    
2052    checkpoint57v_post
2053    o change dome exp. to use variable viscosity in side-drag terms.
2054    o remove all the files from the cfc_offline test since they are now
2055      incorporated into tutorial_cfc_offline which has been producing
2056      identical results for a few days of testing
2057    o add new parameter: sideDragFactor to enable half-slip-side BC
2058      and change side-drag S/R to use viscosity from mom_calc_visc
2059      (can switch back by setting sideDragFactor=0.); affects results at
2060      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2061       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2062    o vorticity & strain are now computed without masking, to account for
2063      no-slip-side BC in variable viscosity calculation ; mask is applied
2064      anyway later on, before computing advection/coriolis terms.
2065    o modify exp4 to test new obcs support for reading from external files
2066      and for passive tracers
2067    o fix behavior of ptracers_monitor when monitor output is written to a
2068      netcdf-file; still not independent of monitor.F (writes in the same
2069      file).
2070    o change default value of tRef (put a uniform, meaningful value for ocean
2071      & atmos) and initialize sRef (was missing, as Martin mentioned).
2072    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2073      to be proportional to enstrophy dissipation length.  Thus,
2074       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2075      This is now consistent with Smagorinsky and with the manual.
2076    
2077    checkpoint57u_post
2078    o OBCS and PTRACERS: add open boundary support for passive tracers
2079      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2080        OB-values from file; this is not different from the way theta and salinity
2081        are treated
2082      - however, Orlanski-radiation conditions are not supported, and the model
2083        will stop if you use pTracers and Orlanski at the same time.
2084      - beefed up the rountine obcs_external_fields_load: now only those open
2085        boundary values are overwritten with values from files for which there
2086        are really files, otherwise the OB-fields remain untouched. This makes
2087        it possible to use different OBs at different ends of the domain (as
2088        with EXF)
2089    o reduce number of exch calls in shap_filt (s2).
2090    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2091      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2092    
2093    checkpoint57t_post
2094    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2095    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2096      same truncation, independent of the face number: affects affects several
2097      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2098    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2099      note that biharmonic viscosity + no-slip was not tested in any experiment.
2100    o fix bug in non-linear free-surf side-drag ; generate new output for
2101      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2102    o make mnc honor the writeBinaryPrec flag for most kinds of output
2103    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2104    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2105      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2106    o add brackets in multi-terms sum to get same truncation, independent of
2107      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2108      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2109    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2110      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2111      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2112      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2113      Suggested values of viscosity parameters found in mom_calc_visc.
2114      Many new viscosity diagnostics available.
2115    
2116    checkpoint57s_post
2117    o Add clearing-house for viscosity calculations, mom_calc_visc and
2118      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2119      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2120      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2121      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2122      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2123      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2124      ViscAhStrain and viscAhTension are now retired.
2125    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2126    o In response to JMC's bug report, genmake2 now ignores any soft-links
2127      that it finds in the *current* directory when searching for files.
2128      Soft-links found in any other source directories will still work as
2129      they did before.
2130    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2131      a C routine to unlimit the stack size
2132    o mnc-ify pkg/aim snapshot vars
2133    o mnc-ify pkg/land as requested by Daniel
2134    o various changes to mnc including:
2135      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2136      - output can now be grouped so that all files within a group
2137          change the ITER portion of their names in lock-step together
2138      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2139          and works with both EXCH1 and EXCH2 (but needs more testing)
2140      - writing works for all verification test cases w/ g77 on Linux
2141    
2142    checkpoint57r_post
2143    o make MNC variable initialization happen earlier
2144    o add diagnostics for (almost) each term of the momentum Eq.
2145    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2146    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2147    o remove MINIMAL_TAVE_OUTPUT option ;
2148      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2149    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2150      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2151    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2152    o add time-dependent SST, SSS control
2153    o cost terms in ecco/ modularized (new cost_generic.F)
2154    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2155    o new infrastructure for seaice model vs. obs misfits in seaice/
2156      * driver from the_main_loop.F is seaice_cost_driver.F
2157      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2158      * gradient check in Exp. 6a of natl_box_adjoint/
2159    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2160      (see README file)
2161    
2162    checkpoint57q_post
2163    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2164    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2165      - bug was reported by Jean-Michel and Ian Fenty
2166    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2167      update exp. cpl_aim+ocn output.
2168    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2169      Needed for high-res. runs with large global files
2170      to be able to limit tapelev size
2171    o Changed some tests for adjoint:
2172      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2173      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2174      * global_ocean.90x40x15/ back to default 3-level checkpointing
2175    o Modifications to enable scripted COMMON to MODULE conversion
2176      * verification/OpenAD/code/ has necessary scripts and description;
2177      * converts, compiles and runs successfully;
2178    
2179    checkpoint57p_post
2180    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2181    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2182      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2183    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2184    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2185      (was already the case for dissipation with mom_vecinv,
2186       and also the case for grad.PhiHyd when staggered-timeStep)
2187      This will allow to put dissipation out-off the AB time-stepping.
2188     Unfortunately, affects truncation error. Update output of exp. that "fails"
2189      (cg2d matching number) and leave the others for later: front_relax(10),
2190      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2191      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2192    
2193    checkpoint57o_post
2194    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2195      (2) its ready to be documented during the 20050801 DocFest
2196    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2197      for ideal_2D_oce and lab_sea on linux_ia32_g77
2198    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2199      in global1x1_tot/code_seaice_adj to access indices 32, 33
2200      (worth another tag)
2201    
2202    checkpoint57n_post
2203    o adding precip control xx_precip 32
2204    o adding swflux control xx_swflux 33
2205    o Replacing 10 forcing penalty cost routines by 1 generic.
2206    o Implementing partitioning in time-mean and variable adjustment
2207      for atmos. state.
2208    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2209    o in natl_box_adjoint:
2210      * updated exp 1 to 10
2211        (but does not have time-mean vs. variable split results yet)
2212    o updated global1x1/*_seaice_adj/
2213      to incorporate latest changes
2214    o enable useSingleCpuIO for mdsio vector routines
2215      (applies in particular to tapelev I/O)
2216    o removed inefficient K-loop in all active_file*control*.F
2217    
2218    checkpoint57m_post
2219    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2220      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2221    o pkg/exch2: filling of face-corner halo regions is optional
2222      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2223    
2224    checkpoint57l_post
2225     tag before updating tutorials (pre-release-2)
2226    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2227       for output and interpolation of input fields onto model grid)
2228    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2229       Affects results of exp. rotating_tank ; update output.txt.
2230    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2231          and taking the square quantity and/or using a fraction-weight field.
2232    o fix aim_diagnostics_init.F mate numbers.
2233    o add mnc output capability to diagnostics/diagstat and update
2234      our cvsignore files for the ACSII output generated
2235    
2236    checkpoint57k_post
2237    o lab_sea now uses diagnostics package and provides a suite of
2238      new EXF diagnostics output.
2239    
2240    checkpoint57j_post
2241    o exf
2242      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2243        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2244        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2245      * extended diagnostics output
2246        - now includes all EXF variables
2247        - hs, hl moved to common block
2248        - separate S/R for diagnostics, called after ctrl vector is added
2249        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2250        - EXFqnet contains true Qnet (i.e. includes qsw)
2251      * updated verif. lab_sea, global_with_exf
2252      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2253        to ensure that diagnostics sees a true EXFqnet
2254    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2255    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2256      several times with different frequencies.
2257    o mnc-ify the thsice package as requested by Daniel Enderton
2258      - the monitor--MNC output needs work
2259      - many attributes need to be added (most are currently blank)
2260    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2261      - many attributes need to be added (most are currently blank)
2262    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2263    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2264    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2265      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2266         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2267    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2268     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2269    
2270    checkpoint57i_post
2271    o Diagnostics package was changed: diagnostic allocation is now deactivated
2272      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2273    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2274      add 1rst Order upwind vertical Shear.
2275    o add a quick fix for A/B checkpointing in OFFLINE mode
2276    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2277      end-run around the C/Fortran linking horror in eesup/src/timers.F
2278    o added pkg/runclock: allows user to terminate run based on wall clock
2279    o added non-hydrostatic scaling parameter: nh_am2
2280    o pkg/my82: futile attempt to make results compiler-independent by adding
2281      some "_d 0", etc. no effect.
2282    o for mnc output, fill the 'T' coordinate var with myTime and create a
2283      separate 'iter' variable for iteration count
2284    o pkg/diagnostics:
2285      add new capability: output of Global/Regional & per-level statistics ;
2286      tested against monitor output (including land & thSIce) on various exp.
2287    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2288    
2289    checkpoint57h_done
2290      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2291      data.diagnostics, data.gchem, data.ptracers) is done.
2292    
2293    o pkg/diagnostics: prepare for Global/Regional statistics.
2294      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2295    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2296      and rename it: DIFFERENT_MULTIPLE
2297    
2298    checkpoint57h_post
2299    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2300    o pkg/diagnostics: change output frequency, now in seconds (instead
2301      of Nb of iterations). This requires to change data.diagnostics.
2302    checkpoint57h_pre
2303    
2304    o in mnc, let the user create the output dir if both mnc_outdir_date
2305      and mnc_outdir_num are false
2306    o add fflags() to pkg/diagnostics which allows one to specify, on a
2307      per-file basis, the file precision [default behavior is unchanged]
2308    o added diagnostics to pkg/kpp, including computation of mixed layer
2309      depth based on a temperature/density criterion
2310    o updated verification/natl_box to test the new pkg/kpp diagnostics
2311    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2312    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2313    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2314      not mnc -- this mistake was found by JMC and is now corrected
2315    
2316    checkpoint57g_post
2317    o add Adams-Bashforth 3rd Order time stepping:
2318      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2319      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2320    checkpoint57g_pre
2321    
2322    o make lambda[Theta,Salt]ClimRelax spatially varying
2323      (default remains spatially uniform constant based on tau)
2324    o added new control variables
2325      * init. uVel, vVel, etanN
2326      * lambda[Theta,Salt]ClimRelax
2327    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2328      (suggested by G. Forget)
2329    
2330    checkpoint57f_post
2331    o add parameter "baseTime" = model base time = time at iteration zero
2332      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2333      account for baseTime shift
2334    o move Coriolis arrays from PARAMS.h to GRID.h
2335    checkpoint57f_pre
2336    
2337    o mnc-ifying the seaice package
2338    o introduced an alternative length scale calculation for use in the limiting
2339      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2340    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2341    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2342      as well as grad(vort3).  Made it compatible with both approximate form
2343      for the cubed sphere and full form of these gradients.  Added flag
2344      useFullLeith to select between approximate and full form.  
2345    o add "d0" in getcon.F to reduce differences between compilers/platforms
2346      update output.txt of exp. fizhi-gridalt-hs
2347    o change port_rand funtion to allow to set the seed.
2348    o fix obscure MNC bug involving conversion between reals and integers
2349      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2350        new version is now more standards-compliant
2351    o adjoint-related modifications
2352      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2353      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2354      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2355    
2356    checkpoint57e_post
2357    o Adding eddy stress controls a la Ferreira et al.
2358    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2359    
2360    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2361      update output.txt of exp. fizhi-gridalt-hs
2362    o add more "Z" dimensions and associated coordinate vars to MNC
2363    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2364    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2365      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2366      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2367      months and years.  Requires pkg/cal.
2368    o diagnostics: add pickup functionality
2369      - off by default for backwards compatibility
2370      - current version only uses MDSIO -- MNC will be added
2371    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2372    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2373    
2374    checkpoint57d_post
2375    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2376    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2377      output from the diagnostics package
2378    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2379    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2380      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2381    o add coordinate variables to the MNC output from the diagnostics package
2382    o change MNC-flags default value: true when useMNC=TRUE
2383    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2384      the ability (off by default) to read the grid information using MNC
2385    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2386    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2387    o do snap-shot diagnostics at the middle of the time-interval (instead of
2388      at the end).
2389    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2390      new test for AIM with thSIce + slab-ocean
2391    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2392    o move state variable diagnostics to the beginning of the time step ;
2393      (note: still needs some work specially for snap-shot diagnostics)
2394      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2395    
2396    checkpoint57c_post
2397    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2398    o generate new output.txt files on faulks with g77 & the new -ieee option
2399    checkpoint57c_pre
2400    
2401    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2402      update output.txt of exp. global_ocean.90x40x15
2403    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2404      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2405    o add saltFlux(+File) forcing capability with periodicExternalForcing
2406    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2407    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2408    o improvements for the MNC output from DIAGNOSTICS:
2409      - correct handling of the unlimitied dimension
2410      - all dims now have associated coordinate variables
2411      - variables located at U, V, and Corner ("Z") points are now written
2412        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2413        *all* data points are output
2414    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2415    o added pkg/seaice/seaice_monitor.F
2416    o mdsio_readfield.F can now read files visible only to master MPI process.
2417    o pkg/seaice: some test code for ice-modified ocean stress
2418    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2419      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2420      spurious negative numbers for precipitation and humidity.  Will cause
2421      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2422    o pkg/ctrl/
2423      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2424        May be enabled via doPackDiag
2425      *  introduce z-scaling of
2426         + gradient (doZscalePack) and
2427         + control (doZscaleUnpack)
2428    o pkg/mdsio/
2429      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2430      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2431    
2432    checkpoint57b_post
2433    o simplify options in diagnostics_fill arguments (remove weird combinations)
2434    o fix MNC coordinate variables so that they now contain per-face index
2435      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2436      general, EXCH2 grids are only aligned to a "local" coordinate system
2437    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2438    o Implement instantaneous output within pkg diagnostics:
2439      setting a negative frequency in data.diagnostics produces
2440     "snap-shot" output (as opposed to time-average if freq > 0)
2441    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2442      NOTE: change ptracer diagnostics name: use 2 characters to work with
2443            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2444    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2445      becomes the coordinate variable for the 'T' dimension
2446    o add CF-style coordinate variables to MNC
2447      - just a first cut:  numbers are meaningless on the cubesphere and
2448        missing along the T axis but otherwise it works!
2449    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2450    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2451    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2452      this is based directly on what the model compute, so that the content of
2453      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2454    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2455    o clean up build options files for SunOS, in particular
2456      - remove -traditional from xmakedepend
2457      - change -xarch=v9 to -xarch=native for f77
2458      - restore use of make (not gmake)
2459      - add CC=gcc if using g77
2460    o changes per discussion of AM, JMC, & EH3 today:
2461      - move redundant "grid" variables out of "state" -- in preparation of
2462        creating proper CF-style coordinate variables and in recognition
2463        that any/all grid variables can be easily copied (eg. w/NCO) from
2464        the grid files into any of the other NetCDF files
2465      - *always* output grid variables with MDSIO (this will eventually be
2466        changed)
2467      - output MNC grid file if useMNC is true
2468    o every instance of _END_MASTER() has been found and replaced with
2469      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2470      preprocessors
2471    o re-arrange diagnostics pkg initialisation:
2472     - allow each package to extend the available diagnostics list
2473     - add some checking and fix small problems (multi-threaded, ...)
2474     - new S/R diagnostics_fill (replace fill_diagnostics):
2475       look through the short list of active diag. (instead of the long list)
2476       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2477    
2478    checkpoint57a_post
2479    o this set of changes restores TAMC compatibility
2480      tested for global_ocean.90x40x15 adjoint on trough
2481      (what a pain)
2482    
2483    checkpoint57a_pre
2484    o some modifs in tools/build_options for sunos
2485    o call ctrl_pack for ctrl at end for optimcycle=0
2486    
2487    checkpoint57
2488    o add horizontal bi-harmonic viscosity for vertical velocity
2489      - new parameter viscA4W (defaults to viscA4)
2490      - affects only non-hydrostatic code
2491      - to be done: no-slip lateral boundary conditions
2492    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2493    o implement Implicit Vertical advection for pTracers
2494    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2495      (implemented also for implicit vertical diffusion & advection)
2496    o OBCS: extend application of tracer open boundary conditions
2497      to a strip beyond the boundary of width Olx/Oly
2498    o add call monitor to TAF set of required calls (flow directives)
2499      and include in natl_box_adjoint
2500    o untangle a few ifdefs related to cost, ctrl, autodiff
2501      untangel a few ALLOW_ECCO_OPTIMIZATION
2502    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2503      (theta2, salt2 in ecco_cost_weights)
2504    
2505    checkpoint56c_post
2506    o OBCS as control variables
2507      - update ctrl_ad_diff.list, obcs_ad_diff.list
2508      - remove balance of obcs controls from default
2509      - fix index bug nobcs in ctrl_init
2510      - fix dummy fields filen in ctrl_pack
2511      - add dummy weights for obcs
2512    o lsopt: comment out fort.94 output
2513    o optim:
2514      - remove unnecessary header files
2515      - adjusted namelists
2516      - add xerbla.F to Makefile
2517    o exf:
2518      - multiple modifications of exf_check_range
2519      - unit change in exf_init_runoff from [m/year] to [m/s]
2520    o mdsio:
2521      - i/o-vector change debugLevel from debLevA to debLevB
2522    
2523    checkpoint56b_post
2524    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2525      is called from DO_THE_MODEL_IO
2526      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2527      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2528      - clean up PTRACERS_WRITE_TIMEAVE a little
2529    o add another verification experiment that tests both the cfc-pkg and
2530      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2531      reactive tendencies treated inline with regular timestepping
2532    o testreport previously did a lousy job of comparing small numbers, so
2533      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2534      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2535      testreport.
2536    o ptracers_monitor: bug fix for MPI
2537    
2538    checkpoint56a_post
2539    o GCHEM: finish reorganizating the package
2540      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2541        (introduces another 3D-array for each passive tracer, but only if
2542        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2543        gchemTendency is not needed because the timestep is done separately)
2544      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2545      - GCHEM is now---more or less cleanly---separate from PTRACERS
2546      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2547        so clear to me how that should be done in a general way.
2548    o CFC: improve formatting of output in CFC_ATMOS
2549    o PTRACERS:
2550      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2551        that ALL experiments with ptracers enable can be checked. This makes
2552        GCHEM_MONITOR obsolete.
2553      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2554        monitorFreq
2555      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2556    o add PTRACERS (PTR0[1-5]) to testreport output
2557    o exf_check_range:
2558      * default changed to .TRUE.
2559      * will check values for niter0 if debLevA, every timestep if debLevB
2560      * STOP in exf_check_range if 'out of range'
2561      * range chosen generous to allow for potential extema
2562      TBD: a version with stricter range
2563           permitted range would be runtime parameters
2564    o GMredi:
2565      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2566      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2567      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2568    o GCHEM:
2569      - move call to GCHEM_FORCING_SEP, so that it is now called before
2570        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2571      - introduced a useGCHEM runtime flag and applied it everywhere.
2572      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2573        this flag is now only visible within GCHEM-pkg routines.
2574      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2575        be replaced by a 3D array that is computed before thermodynamics; for
2576        this, the tracer ID iTracer had to be included into the parameter list
2577        of ptracers_forcing
2578      - set up forward_step to call gchem_forcing, that will replace
2579        gchem_forcing_int in ptracers_forcing
2580      - cleaning up
2581    o small cleaning of exch2: remove files that are also in eesupp/src
2582    
2583    checkpoint56
2584    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2585    o mnc: cleanup "full" files--fixes out-of-memory problem
2586    o ECCO-GODAE
2587      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2588      * fully merged and updated from SIO code
2589        windstress sign change affects
2590        - exf_inscal_[u/v]stress
2591        - sign of xx_tau[u/v] adjustments
2592        - signs in cost_scat
2593      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2594      * natl_box_adjoint updated and compressed
2595      * 2-level checkpoint switch added
2596        (tested in EXP. 1 of natl_box_adjoint)
2597      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2598    o SVD
2599      * first complete, non-hacked version for SVD calculations
2600      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2601        performed via direct access files admtlm_vector.it????
2602        (via ctrl_[un]pack)
2603      * optimcycle is used for ARPACK iteration counter
2604        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2605      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2606        and add linear transforms where necessary
2607      * controls are initial/final SST, SSS (can be extended; need to check
2608        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2609    o mdsio: filename info to both stderr, stdout
2610    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2611      from sign change
2612    
2613    checkpoint55j_post
2614    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2615      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2616    o add consistent build directories and .cvsignore files to verification
2617    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2618    o make all subroutines 30 or less characters in length for certain older
2619      compilers to work (a thorough search only turns up two routines in
2620      pkg/ptracers)
2621    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2622      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2623    
2624    checkpoint55i_post
2625    o change arrays for total vertical diffusivity (2.D if explicit,
2626      3.D if implicit) ; each ptracer uses its own background value.
2627    o added mnc/NetCDF output capability to ocn_compon_interf
2628      - added bits to verification/cpl_aim+ocn so that it can run on
2629        ITRDA and other clusters without the mpirun "-wd" option
2630    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2631      configuration
2632    o give MNC the ability to create additional files rather than
2633      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2634      - the default is just less than 2GB which is a practical limit
2635        on many systems
2636    o Compute the non-local term using either KPP vertical diffusivity (=default)
2637       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2638    
2639    checkpoint55h_post
2640    o add verification test "vermix"
2641    o remove all the *_ioinc flags and replace with the single global
2642      outputTypesInclusive flag
2643    o allow to set a vertical profile of vertical diffusivity for T & S
2644    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2645    o useMNC moved from data.mnc to data.pkg
2646    
2647    checkpoint55g_post
2648    o Renaming carbon AD experiments to comply with testreport conventions
2649    o Updating adjoint of Held-Suarez hs94.1x64x5
2650    o Fixing directives for non-ECCO forward_step, after ECCO directives
2651      have been fixed to avoid recomp. of do_oceanic_phys
2652      Works well for global_ocean.90x40x15,
2653      but recomp. issue remains for carbon
2654    o Updating adjoint output for natl_box_adjoint after
2655      pkg/ecco has been modified (see taga c55d_post)
2656    
2657    checkpoint55f_post
2658    o rename to timeave_init_fixed
2659    
2660    checkpoint55e_post
2661    o some delicate re-shuffle of store directives to avoid one
2662      extra call of do_oceanic_physics
2663      affects ecco_the_main_loop.F, do_oceanic_physics.F
2664      checkpoint_lev1_directives.h
2665    o NB: this may break global_ocean adjoint temporarily,
2666      but it is clear how to fix it. Will do later, need this now.
2667    
2668    checkpoint55d_post
2669    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2670    o ecco_cost_weights is modified to 1x1 runs
2671    o modifs to allow observations to be read in as
2672      single file or yearly files
2673    o enable to read exf forcing fields as either
2674      single file or yearly files (flag useExfYearlyFields)
2675    checkpoint55d_pre
2676    
2677    o switch between 2-level and 3-level checkpointing
2678    o add ability of MNC to write local and "partial" (eg. 2D slices where
2679      the full 3D field is never actually stored) arrays to NetCDF files
2680      with the correct (that is, the complete multi-dimensional) set of
2681      array indicies
2682      - used in mom_vecinv() to write the diagFreq output
2683      - tested (demonstrated) in verification/aim.5l_cs
2684    o further mnc-ification
2685      - add verification/lab_sea to the list with mnc setups
2686      - fix undefined mnc v-names in cd_code
2687      - add kpp to mnc output (both snapshot and timeave)
2688    o non-hydrostatic code
2689      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2690        in calc_gw.F
2691      - defaults to viscAh
2692      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2693        friction or Leith) in non-hydrostatic mode, as long as there is
2694        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2695    o pkg/cost
2696      extend simple cost functions to treat time mean quantities
2697      (T,U,V) via cost_accumulate_state from cost_tile
2698    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2699        be 2 times larger than the minimum size the advection scheme requires.
2700        now get a perfect conservation of salt in advect_cs test-exp (updated)
2701    o GGL90 (Gaspar's TKE mixed layer)
2702      - add horizontal diffusion of TKE, requires exchanges in
2703        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2704        default. In OPA there is no horizontal diffusion of TKE but the
2705        mixing coefficients are computed from a horizontal average of TKE of
2706        6 points or so. I think that diffusion has a little more physical
2707        justification.
2708      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2709        was in vain)
2710      - mask tke-variable in ggl90_init
2711    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2712    o fix biharmonic diffusion on CS-grid.
2713    o more obcs stuff
2714      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2715        for reading boundary values. This routine is called from
2716        obcs_prescribe_read
2717      - updated obcs_check
2718      - changed sponge layer relaxation parameter units for days to seconds
2719      - turned off sponge layer by default
2720      - changed argument list of OBCS_CALC to myTime+deltaTclock
2721      - fixed about 35 bugs in obcs_external_fields_load
2722    
2723    checkpoint55c_post
2724    o obcs stuff
2725      - new runtime flags useOBCSprescribe, useOBCSbalance
2726      - re-arranged obcs_calc
2727      - moved exf_getobcs to obcs_prescibe_read
2728        obcs_prescibe_read is called after ORLANSKI stuff
2729        and independent of it (executable can contain all).
2730      - updated obcs_check
2731      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2732        These may be necessary only if tangential velocities are
2733        prescribed at OB, not sure, needs testing.
2734    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2735      which simplifies the calls and passes the ifc check-bounds test
2736    
2737    checkpoint55b_post
2738    o add a 2D scalar, Z location, exchange_2 routine.
2739    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2740      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2741      affects advect_cs results (for the wrong reason): update output.txt
2742    o use a more standard discretization for biharmonic viscosity ;
2743     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2744      affects results of dome set-up: update output.txt
2745    o fix gad_advection.F (CubedSphere part), back to version 1.23
2746    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2747    
2748    checkpoint55a_post
2749    o merged code to
2750      * prescribe/read time-dependent open boundaries
2751        (works in conjunction with exf, cal)
2752      * sponge layer code for open boundaries
2753      * each boundary N/S/E/W now has its own CPP option
2754        (healthy for the adjoint)
2755    
2756    checkpoint55
2757    o up-to-date adjoint of previous breaks
2758      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2759      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2760      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2761      - carbon: * remove tr1-related adjoint verification
2762                * add ptracer as control variable
2763    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2764      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2765    
2766    checkpoint54f_post
2767    o in verification/carbin/ remove experiment related to
2768      ALLOW_PASSIVE_TRACER (array tr1 etc)
2769      code_ad/ input_ad/ results_ad
2770    
2771    o add two new packages
2772      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2773        + subject to optimization (memory)
2774      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2775        + subject to reordering (many GOTOs in the original code)
2776        + so far opps is called for every (i,j) point, and then operates in
2777          the vertical; one may want to reorder the scheme in order operate in
2778          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2779          fields)
2780    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2781      - all verification tests compile and run with linux_ia32_g77
2782      - defaults are compatible with current input files--nothing
2783        should change if you were not previously using MNC
2784      - MNC output has been added in numerous places (eg. timeave)
2785        but there are still a few writes not yet do-able with MNC
2786        (this is in progress)
2787      - flags now allow for either/or/both use of MDSIO and MNC and
2788        documentation will soon follow
2789      - numerous small formatting cleanups for ProTeX
2790    o add version info (via BUILD_INFO.h) to MNC and stdout
2791    
2792    checkpoint54e_post
2793    o add two new packages
2794      - pp81 (Packanowski and Philander, 1981), Richardson number and
2795        stratification dependent mixing
2796      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2797      - these scheme operate in a similar manner as KPP (without ghat, of
2798        course), however there is only one diffusivity that is used for both
2799        temperature and salinity (and passive tracers)
2800    o add offline package
2801    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2802      provided by Stephanie Dutkiewicz
2803    o genmake2: add ability to search for C compilers and cleanup test output
2804      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2805    
2806    checkpoint54d_post
2807    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2808    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2809      leading to additional shift by 5 days each year of integration
2810       (i.e. leading to considerable offset over the years)
2811    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2812    o start with no AB and no initial filtering (staggerTimeStep):
2813      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2814    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2815      (external loading & cpl import/export stay in forward_step.F)
2816    o update coupling interface to work with new staggerTimeStep
2817    o change MDSIO ptracers_pickup.
2818    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2819    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2820    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2821    
2822    checkpoint54c_post
2823    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2824      this affects (truncation error) output.txt of test-exp:
2825       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2826    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2827    o change Qnet to always be the net heat flux, (+upward).
2828      affects (truncation error) output of natl_box exp.: updated
2829    o define the max number of passive tracers in PTRACERS_SIZE.h
2830    o start to test mnc routinely in exp0
2831    o add sea-ice loading (sIceLoad) as a new forcing field.
2832    
2833    checkpoint54b_post
2834    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2835       impressive on Altix and Opteron systems)
2836    o diagnostics can now write NetCDF files through the mnc package
2837    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2838    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2839    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2840      affects (truncation error) output of lab_sea & natl_box exp.: updated
2841    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2842    
2843    checkpoint54a_post
2844    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2845    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2846    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2847    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2848      + internal_wave (shift in writing cg2d_ini_res)
2849    checkpoint54a_pre
2850    
2851    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2852      - modified verification/lab_sea and natl_box_adjoint accordingly
2853    
2854    checkpoint54
2855    checkpoint53g_post
2856    o prepare splitting of thermodynamics: store convect.counter in common block
2857    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2858      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2859    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2860    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2861    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2862    o restore adjointability
2863    
2864    checkpoint53f_post
2865    o modifications that affect AIM experiment results (update output.txt):
2866      - no advection of S at top interface Nr (pkg/generic_advdiff)
2867      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2868    o AIM pkg:
2869      - include stability function into surf.Flux derivative relative to Tsurf
2870      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2871    
2872    checkpoint53e_post
2873    o merged cylindrical coord configuration
2874    o added rotating_tank experiment
2875    checkpoint53e_pre
2876    
2877    checkpoint53d_post
2878    o faulks upgraded: re-generate output.txt that have changed:
2879       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2880    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2881    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2882    o added Sadourny discretization of Coriolis
2883      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2884      - re-enabled use of omega3 (useAbsVorticity)
2885    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2886      vector-invariant equations
2887      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2888    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2889      hopefully without new bugs
2890      - still to do: biharmonic friction for non-hydrostatic w
2891    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2892    o regenerated output for global_ocean_ebm (using -ieee)
2893    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2894      of mom_common/
2895      - simple re-arrangement of instructions within computing loop
2896    checkpoint53d_pre
2897    
2898    checkpoint53c_post
2899    o new version of coupler for AIM+thSIce and Ocean models
2900     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2901     - land: change Evaporation of snow
2902     - aim with thSIce: fix bug in snow-precip.
2903    o changes to calc_gw.F
2904     - bug fix for w^2 term near the bottom boundary
2905     - (hopefully) improve the lateral slip boundary condtions for use with
2906        partial/looped cells
2907      - because the bug fix changes two verification experiments anyway (exp5
2908        and plume on slope), change the lateral boundary condition from half slip
2909        to the value of no_slip_sides
2910    o ebm package wasnt quite up to the parallel task. Fixed that.
2911    o Adjoint of EBM package + verification
2912      * TLM OK
2913      * ADM not sufficient accuracy yet (needs further testing)
2914    
2915    checkpoint53b_post
2916    o Commiting new energy balance model to repository
2917      * package is pkg/ebm
2918      * verif. is verification/global_ocean_ebm
2919      * references are in ebm_driver.F
2920    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2921    C        Global thermohaline circulation. Part I:
2922    C        Sensitivity to atmospheric moisture transport.
2923    C        J. Climate 12(1), 71-82
2924    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2925    C        Global thermohaline circulation. Part II:
2926    C        Sensitivity with interactive transport.
2927    C        J. Climate 12(1), 83-91
2928    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2929    C        Destabilization of the thermohaline circulation
2930    C        by atmospheric eddy transports.
2931    C        J. Climate 7(12), 1870-1882
2932    o Will need long integration testing.
2933    checkpoint53b_pre
2934    
2935    o created pkg/mom_common in preparation for variable viscosity code
2936    o renamed and split ini_mnc_io
2937    o pkg/land: only liquid water can diffuse or run-off
2938    o AIM using land: soil wetness availability account for snow
2939    o added printMapIncludesZeros to EEPARMS namelist
2940    
2941    checkpoint53a_post
2942    o restore TAMC compatiility for exf_constants.h
2943      (no usage of _d in .h)
2944    o Additional storing in KPP in an attempt to fix
2945      TAMC problem with adjoint of KPP code.
2946      (no success...)
2947      Identical code works fine with TAF.
2948    o Fixed verification/natl_box_adjoint experiments.
2949      Initial conditions for Experiments 4 and 5 are now
2950      set to "SEAICE_initialHEFF=0", which is more reasonable,
2951      and hence gives results closer to that of Experiment 2.
2952      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2953    
2954    checkpoint53
2955    o stable checkpoint with up to date adjoint
2956      TLM tests only run for 1st grdchk at the moment. Its unclear if
2957      this is a code problem or a problem with resetting code for g_
2958      variables that is being autogenerated wrong.
2959      Otherwise:
2960       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2961       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2962         are both still in chaos following their security messes.
2963    
2964    checkpoint52n_post
2965    o various build (mostly genmake2) changes including:
2966      - ability to build/run more easily within Cygwin and MacOS X
2967      - more complicated Makefiles with a stronger dependence on Gnu Make
2968    o pkg/seaice modifications
2969      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2970        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2971        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2972      - changed proxy for geostrophic velocity and updated
2973        verification/lab_sea/results/* accordingly
2974      - removed ADI dynamic solver from pkg/seaice
2975      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2976        they caused a segmentation fault under certain circumstances
2977      - removed unused field WATR
2978    o bug fix in exf-package:
2979      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2980         now reflect that.
2981    o small fixes in the cal-package:
2982      - set reference date to first of January for the 'model'-calendar
2983      - failing of cal_CheckDate in cal_FullDate now actually results in a
2984        warning
2985    o small modifications in exf-package to increase flexibility:
2986      - change climtempfreeze from a constant to a runtime parameter that
2987        is specified in data.exf_clim (default = -1.9)
2988      - introduce runtime parameter windstressmax (default = 2.0) that is
2989        specified in data.exf
2990    o fix in pkg/thsice:
2991      - update Evap (Tsf changes) to be consistent with Latent heat flux
2992      - maintain snow precipitation unchanged (even if Tsf >=0).
2993     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2994    
2995    checkpoint52m_post
2996    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2997      this does not change any of the results, because myIter=0 in swfrac always
2998      lead to jwtype=2 (the default anyway), but the call makes little sense
2999      as a default
3000    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
3001    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
3002      atmospheric model (AIM) to use it ; add a "slab ocean" component.
3003    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
3004    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
3005    o extending useSingleCpuIO option to work with new exch2 I/O format
3006      - old-style, missing-tile I/O is still accessible by defining CPP
3007        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
3008    o monitor package can write to NetCDF files and/or STDOUT
3009    o fix re-definition bug in MNC_GRID_INIT_ALL()
3010    o doc/api_reference added
3011      - a framework for building an API Reference Manual using all
3012        the "protex" comments embedded in the code
3013      - see pkg/generic_advdiff, pkg/mnc for examples
3014    o MNC:
3015      - make myThid the last argument for all subroutines
3016      - new default for the grid files: NO halos
3017      - add useMNC and other run-time flags
3018      - separate per-file-group handling of the unlimited dimension
3019      - early initialization of MNC w/ flags read at the eeboot stage
3020        and lookup tables set in initialize_fixed
3021      - write all MNC output to a freshly-created directory
3022    o thermodynamics sea-ice (thsice) is now tested with testreport.
3023    o test exp. advect_cs: use the standard cs32 grid ; update output.
3024    o Added functionality to grdchk:
3025      pick global i,j,k position (or nearest wet) where to perform check.
3026    
3027    checkpoint52l_post
3028    o new land formulation:
3029      a) use ground enthalpy as prognostic variable to ensure exact
3030         energy conservation.
3031      b) account for water temperature and for latent heat of freezing
3032         in all processes (rain, run-off, ground storage)
3033      c) compute surface and ground temperature implicitly.
3034    o aim_v23 modification for new land model:
3035      a) Treat separately land / ocean / sea-ice surface fluxes
3036         to allow implicit computation of land & sea-ice surface temp.
3037      b) add snow precipitation.
3038    checkpoint52l_pre
3039    
3040    o fix problem (when 1 tile is empty) in min/max monitor.
3041    o fix bug in timeAve (u,vZetatave in common block)
3042    o no restoring terms under ice for pkg/seaice
3043    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
3044    o bug fix for pkg/seaice pickups
3045    o change MNC call locations and add coordinate attributes
3046    o mask vorticity at the corner ; affects global_ocean.cs output
3047    o fix ini_curvilinear_grid ; test CS experiments with mpi
3048    o aim.5l_cs: modify sea-ice fraction input file ; update output
3049    o exf: Adding simple range check routine for exf fields after read
3050    
3051    checkpoint52k_post
3052    o removed top-level directory "diags"
3053      - we migrated these functions to pkg/timeave a long time ago
3054    o fixed bug introduced in pkg/monitor
3055    o accuracy ctrlprec = 32 insuffient for gradient checks using
3056      averaged fields (I/O via cost_averages)
3057      -> use ctrl.h in active_file*.F to control I/O precision.
3058    o paramter list of CALL ADTHE_MAIN_LOOP
3059    o added initial do_the_model_io to ecco
3060    o set all ...Freq to zero after cost_final
3061      taveFreq, dumpFreq, pChkptFreq
3062    o MAIN and ECCO differentiability restored
3063    
3064    checkpoint52j_post
3065    o fix nchklev in tamc.h for global_ocean...
3066    o Bringing flow and store directives up-to-date
3067    o Really weird thing!
3068      call do_the_model_io from the_main_loop with parameters
3069      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
3070      TAF places a faulty re-call of initialise_varia
3071      after cost_final call which should not be there!
3072    checkpoint52j_pre
3073    
3074    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
3075      error messages
3076    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
3077    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
3078      debug output
3079    o modfied mdsio_writefield.F to handle non-global files under exch2
3080    o update AIM Cubed-Sphere exp (aim.5l_cs):
3081      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
3082    o update AIM Equatorial Channel exp:
3083      use standard aim_v23 pkg and change the SST fields to be more realistic.
3084    o globalFile now works with exch2
3085    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
3086      mon_vort3.F to make exch2 friendly with >1 tile per cube face
3087    o limit timeave output for hi-res integrations
3088    
3089    checkpoint52i_post
3090    o removed CPP_EEOPTIONS.h from verification/*/code
3091    o updated the tiling for global_ocean_pressure
3092    checkpoint52i_pre
3093    
3094    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
3095      the old pkg/aim).
3096    
3097    checkpoint52h_pre
3098    o shortened offending lines in exch2_send_rx?.template
3099    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
3100    o genmake2: add build & execute test for NetCDF code
3101    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
3102      old grid files, moved CPP_EEMACROS.h to pkg/exch2
3103    o added useSingleCPUIO flag to monitor.F and mon_out.F
3104    o added temporary hack for sea-ice dynamics on the cube:
3105      metric terms are ignored and it is assumed that
3106      there is no sea-ice on cube faces 1, 2, 4, and 5.
3107    
3108    checkpoint52f_post
3109    o added exch2 cube routines to pkg/exch2
3110    o modified hs94.cs-32x32x5 to use it
3111    o added new grid files to hs94.cs-32x32x5
3112    checkpoint52f_pre
3113    
3114    checkpoint52e_post
3115    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
3116      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
3117    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
3118      to work with implicit vertical advection and AB ;
3119    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
3120    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
3121     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
3122    checkpoint52e_pre
3123    
3124    o fix bug in impldiff when Nr=1 or Nr=2.
3125    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
3126    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
3127    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
3128      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
3129    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
3130    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
3131    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
3132    
3133    checkpoint52d_post
3134    o re-tiled many expts to allow comparison in multi-processor mode
3135      - updated output accordingly
3136      - changed hs94.128x64x5 to use intial T from file rather than use the
3137        random number generator
3138    o add infrastructure in model routines for fizhi and gridalt packages
3139    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
3140    o changes to permit hi-res, cubed-sphere, configuration
3141      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
3142      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
3143      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
3144        of surface winds for the cube
3145      (A verification experiment, based on global_ocean.cs32x15, but with
3146       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
3147       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
3148       complete with example surface forcing files and matlab scripts to look
3149       at the output and compare it with that of global_ocean.cs32x15.)
3150    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
3151       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
3152       to conform to the common rule.
3153    o check-in the first version of the coupler + interfaces for multi-components
3154       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
3155       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
3156       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
3157       - ocean and atmos. share the same horizontal grid (no interpolation).
3158       - exchanges between component and coupler is done in forward_step
3159    o new verification experiment, cpl_aim+ocn:
3160       coupled ocean - AIM atmosphere on cs32 grid.
3161    
3162    checkpoint52d_pre
3163    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
3164    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
3165    
3166    checkpoint52c_post
3167    o Fixing OPTIONS files for use of exf:
3168      - ALLOW_ECCO not needed
3169      - ECCO_CPPOPTIONS.h should not be included from
3170        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
3171        as has been the case in the past
3172      - All cal/exf related options are currently set in
3173        single header file. Should remain so until we
3174        agree on a consistent new policy.
3175    o Removed all CPP options for cal package.
3176      cal has no more CPP options.
3177    o modified STOREs in GAD_ADVECTION
3178    o corrected key comp. for passkey
3179    
3180    checkpoint52b_post
3181    o new version: "thsice" of thermodynamic sea-ice pkg:
3182     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
3183     - modify fluxes but do not change theta directly;
3184     - light cleaning of bulk_force pkg (still needed with thsice).
3185     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
3186       + output_thsice.txt to test thsice & bulk_force pkgs.
3187    o put back grid & coriolis monitor output.
3188    checkpoint52b_pre
3189    
3190    o call "do_the_model_io" at the beginning (=> dump initial state)
3191    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
3192    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
3193      (need info on NUMBER_OF_PTRACERS)
3194    o missing PTRACERS headers in some routines
3195    o default tamc.h in pkg/autodiff supposed to crash
3196      to ensure proper customization
3197    
3198    checkpoint52a_post
3199    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
3200      - moved surfaceTendencyTice from pkg/seaice to main code
3201      - subroutine FREEZE_SURFACE now limits only surface temperature
3202        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
3203        => new output.txt for global_ocean.cs32x15 & global_with_exf
3204      - keep the old version of FREEZE for backward compatibility;
3205        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
3206      - corresponding modifs for TAF directives
3207    o added surface flux output variables to TIMEAVE_STATVARS
3208    o time-averaged output for pkg/ptracers
3209    o fix problem with ECCO-related divided adjoint
3210      snapshot file was missing some ad-variables,
3211      but no warning issued by TAF
3212    
3213    checkpoint52a_pre
3214    o some bug fixes for #undef REAL4_IS_SLOW
3215    
3216    checkpoint52 = ecco_c52_e35
3217    o after testing adjoints of checkpoint51u_post
3218    
3219    checkpoint51u_post
3220    o this is the post-merge tag of the ecco-branch
3221      (needs another clean checkout and re-testing)
3222    o various natl_box_adjoint configs and results
3223      but no input fields
3224    o obcs adjoint not yet merged!
3225    o adding ECCO global 1x1 and 2x2 degree configs
3226    o updated/extended some store directives for seaice
3227    o pkg/ecco now containes ecco-specific part of cost function
3228    o top level routines the_main_loop, forward_step
3229      supersede those in model/src/
3230      previous input data.cost now in data.ecco
3231      (new namelist ecco_cost_nml)
3232    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3233    
3234    checkpoint51t_post
3235    o this is the pre-merge tag of the ecco-branch
3236    
3237    checkpoint51s_post
3238    o cleanup: removed various obsolete #define-s
3239    o pkg/grdchk
3240      - renamed 'ph-grd 3' to 'grad-res'
3241      - merged from ecco-branch
3242        (remaining bug fixes for obcs gradient checks)
3243      - additional high-precision output for testreport
3244        (grep for 'precision_grdchk_result')
3245    
3246    checkpoint51r_post
3247    o cleaned up or removed CPP_OPTIONS.h files
3248    o updated results for some of the tests to reflect the new
3249      optfiles (-ieee: -O0 instead of -O3)
3250    
3251    checkpoint51q_post
3252    o cd_code:
3253      - moved cd_scheme.F -> cd_code_scheme.F
3254      - separate read_checkpoint from cd_code_ini_vars.F
3255      - separated cd_code part from write_checkpoint
3256      - updated AD_SOURCE, generated .flow
3257      - added CD_CODE_VARS.h to the_main_loop
3258      - Moving cd_code specific store dir.s to pkg/cd_code
3259    o ctrl package totally restructured
3260      - pack/unpack now optional and decoupled from
3261        xx_/adxx_ I/O
3262      - ctrl_pack/unpack cleaned
3263        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3264      - confined inclusion of AD_CONFIG.h to where necessary.
3265    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3266    
3267    checkpoint51p_post
3268    o create initial cd_code package
3269      - WARNING: the initialization of fields within packages
3270        is broken because INI_FIELDS (where READ_CHECKPOINT is
3271        called) is called *before* PACKAGES_INIT_VARIABLES.
3272        This seems to be backwards since
3273        1) its important to initially zero the entire field including
3274           the "halo" region
3275        2) zeroing needs to be done *before* reading pickup info
3276           and the pickup call might or might not happen in any
3277           particular run
3278      - this needs an overhaul for R2
3279    o cleanup verification/*/code/GMREDI_OPTIONS.h
3280    o cleanup testreport
3281    
3282    checkpoint51o_post
3283    o bringing AD-related verif's up to date with genmake2
3284      - carbon/
3285      - global_ocean.90x40x15/
3286      - hs.94.1x64x5/
3287      - (front_relax/ )
3288    o (more) consistent directory structure for AD-related verif.'s
3289    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3290    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3291    o bug fix in find_alpha.F for MDJWF:
3292      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3293        change rho -> rho-rhoConst
3294      - replace call find_rho to find_rhonum
3295    o initialisation of rFlx extended to full array (required by TAF)
3296      and shifted to thermodynamics
3297    o removed PTRACERS.h in ptracers routine
3298    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3299    o Correcting initialisations for fVerU, fVerV.
3300    o helping TAF to recognize dependency on kUp for
3301      fVerU, fVerV
3302    o Replacing delZ by delR in pkg/ctrl/
3303    checkpoint51o_pre
3304    
3305    o undid all of cp51 pending some cleanups and discussion
3306    o added the [#include "AD_CONFIG.h"] statement to all files that need
3307       it for adjoint/tl #defines
3308     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3309     o removed tools/genmake since it no longer works
3310    
3311    checkpoint51n_post
3312    o modifications to make FREEZE flux visible to pkg/kpp
3313      - moved surfaceTendencyTice from pkg/seaice to main code
3314      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3315      - subroutine FREEZE now limits only surface temperature
3316        (this means new output.txt for global_ocean.90x40x15,
3317         global_ocean.cs32x15, and global_with_exf)
3318    o added surface flux output variables to TIMEAVE_STATVARS
3319    
3320    checkpoint51n_pre
3321    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3322    o added [#include "AD_CONFIG.h"] to all files that use the following
3323      defines:
3324      - ALLOW_ADJOINT_RUN
3325      - ALLOW_TANGENTLINEAR_RUN
3326      - ALLOW_ECCO_OPTIMIZATION
3327    
3328    checkpoint51m_post
3329    o incorporating changes to get TAMC/TAF working in genmake2
3330      - added new TAMC/TAF targets to the Makefile
3331      - various cleanups related to package handling
3332      - these changes should have no impact on the forward model
3333    
3334    checkpoint51l_post
3335    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3336     - faster algorithm for cal_addtime.F
3337     - higher precision arithmetic, where needed
3338     - pkg/exf *startdate variables changed from calendar date to
3339       model integration time
3340    
3341    checkpoint51l_pre
3342    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3343    o enable to apply restoring on S & T only in a latitude band.
3344    o update output (external_forcing_surf modif. change truncation errors)
3345       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3346    
3347    checkpoint51k_post
3348    o change default to: useNHMTerms=.FALSE.
3349     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3350       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3351     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3352        exp1, ideal_2D_oce
3353     - change data file of oceanic exp (leave the results unchanged for now)
3354       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3355    o set gravitySign automatically according to the vertical coordinate used
3356      (and change sign: back to "logical" value: +1 when R increases downward)
3357  o added an include barrier to the default CPP_OPTIONS.h and  o added an include barrier to the default CPP_OPTIONS.h and
3358    removed the #include "PACKAGES_CONFIG.h" from it    removed the #include "PACKAGES_CONFIG.h" from it
3359    o fix a bug in mom_fluxform (from chk51j_post)
3360    
3361  checkpoint51j_post  checkpoint51j_post
3362  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/

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