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revision 1.395 by mlosch, Mon Nov 29 20:30:52 2004 UTC revision 1.1166 by jmc, Fri Oct 2 20:35:52 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg obcs:
8     - go through NH code only if nonHydrostatic=T
9     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
10     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obcields
11       => Update output of experiment seaice_obcs
12     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
13     - hack obcs_calc.F to fix restart in experiment seaice_obcs.
14    o pkg ctrl
15     - make obcs as control parameter work also with useSingleCPUio
16     - replace a few sny and snx by Ny and Nx to be consistent with
17       ctrl_set_globfld_x/yz.F
18    o pkg seaice
19     - re-introduce global field frWtrAtm for the case of
20       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
21     - catch the case of an empty filename in seaice_cost_init_fixed.F
22    o pkg ecco:
23     - small bug fixes in the_main_loop
24      . fix order of monitor arguments
25      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
26      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
27        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
28     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
29       imbalance diagnostics for wmean_h/sflux = 0
30     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
31     - catch the case of empty filenames in ecco_cost_init_fixed.F
32       and ecco_readparms.F
33     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
34       to make this statement meaningfull in ecco_cost_weights.F
35    o pkg zonal_filt:
36      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
37      - when using rStar, filter uVel*hFacW instead of uVel
38       (tested without topography: fix a Pb of growing instability with NLFS)
39    o pkg/aim/thsice:
40     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
41      (works as SST restoring)
42    o pkg/thsice:
43     -add specific parameter for salt restoring in slab mixed-layer
44       (by default equal to the temperature restoring)
45    
46    checkpoint61v
47    o pkg/kpp:
48     -add double diffusive contributions as a hack, turned off by default
49      for now, and the code can be excluded with a CPP-flag
50      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
51     -add a verification experiments to "vermix" to test this code
52    o pkg/mom_common:
53      Move computation of length scales to mom_init_fixed.F (avoid recomputation
54      at each time-steps*levels).
55    o pkg/layers:
56      Created a new package for computing volume fluxes in temperature or
57      [not yet implemented] density layers, e.g. for calculating residual
58      overturning circulations.
59    o pkg/diagnostics:
60      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
61    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
62    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
63      To avoid mixing type (RS/RL) of input/output array argument,
64      replace single mixed-type array with a pair from each type (RS/RL).
65    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
66      is now implemented for all pkgs (previously only done for the main pickup)
67    
68    checkpoint61u
69    o pkg/obcs:
70      - change OB?eta from _RS to _RL and put them into a separate commen block
71      - add code to read OB?eta from a file via obcs_prescribe_read: the code
72        compiles and does not destroy any other experiments, the data is read
73        properly, but the code is not tested in actual applications
74    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
75      create a meaningful unit attribute for the time coordinate variable
76    o pkg/ebm: add plenty of missing "_d 0" ;
77       update results of experiment global_ocean_ebm (fwd + adjoint tests)
78      Notes: several pieces of code only works for (very) specific set up
79       (domain size, lat range, etc ...); should be documented & stop if one
80       of those assumptions is not meet.
81    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
82       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
83          and offline_exf_seaice (seaicetd + adjoint).
84    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
85       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
86        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
87    o few changes to pass when compiling with strick checking of arguments
88       across S/R (allow to find few bugs in S/R calls).
89    o pkg/seaice:
90     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
91       2d-fields, for slightly better performance
92    
93    checkpoint61t
94    o pkg/seaice:
95     - remove unused variables in seaice_evp
96     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
97    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
98       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
99       each processor opens a different file (a fix from Matt).
100    o cg2d:
101       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
102       this reduces number of EXCH calls by 2 when using exch2.
103       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
104       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
105    o pkg/thsice:
106       add code for Near Infra-Red albedo (from Jeff)
107       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
108    o ini_model_io:
109       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
110       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
111       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
112    
113    checkpoint61s
114    o pkg/exch2 (exch2_rxN_cube*):
115       remove last BARRIER (no need to synchronise after getting data from shared
116       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
117    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
118      and generate new output (for the 2 tests) using default rotationPeriod.
119    o pkg/exch2:
120      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
121        (was already the case with AUTODIFF_EXCH2 defined)
122      - add bj in exch2 arrays and S/R.
123      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
124        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
125    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
126      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
127        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
128      - verification experiment natl_box.longstep
129    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
130      allow different versions of ifort (8 or 9) and different versions
131       of mpi (mpich or mpich2) to be used with the same optfile.
132      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
133       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
134    o pkg/seaice:
135      fix previous modif (3-level field removed) for old-pickup reading
136    
137    checkpoint61r
138    o pkg/seaice:
139     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
140      1. introduce fields for time step (N-1)
141      2. do not use levels 2 and 3 anymore (but keep them)
142      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
143         includes changes to pkg/thsice/thsice_get_velocity.F,
144         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
145         pkg/obcs/obcs_apply_uvice.F.
146     - completely remove code for leap-frog time stepping for second order
147       advection
148     - adjusted adjoint accordingly;
149       gradient checks have improved by an order of magnitude!
150    
151    checkpoint61q
152    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
153     - the boundary conditions along open boundaries are unclear, because the
154       associated masks are set to zero and are thus treated as closed when
155       applying the slip-boundary conditions.
156     - move initialisation of grid variables from seaice_init_varia to _fixed
157    o adding doc/diags_changes.txt
158    o model/src:
159      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
160       to avoid "_diags" naming if no relation to pkg/diagnostics.
161      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
162       file and only call PLOT_FIELD_XYZ if debugMode=T.
163      remove few PLOT_FIELD_XY calls outside initialisation.
164      remove few unnecessary BARRIER.
165    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
166      of salt_plume package in Southern Ocean
167    o pkg/thsice:
168     - fix hOceMxL in overlap (needed for sea-ice advection);
169       update output of experiment global_ocean.cs32x15.icedyn.
170    o pkg/seaice:
171     - make the (placeholder-)tracer IceAge a little more meaningful
172      by avoiding ridging of age due to convergent ice flow
173     - add diagnostics for surface temperature, atmospheric and oceanic
174       heat flux, and atmospheric and oceanic ice growth
175    
176    checkpoint61p
177    o eesupp (global_max & global_sum):
178     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
179     - remove starting & endding barrier (no longer needed)
180    o pkg/mdsio, writelocal:
181       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
182       (remove the STOP): uses shared buffer IO to store data from all threads
183       and then let master-thread write nThreads tiles.
184    o pkg/mdsio (read/write field):
185     - tiled IO done in 1 piece (all levels at a time);
186     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
187     - multi-threaded: allow to read/write local (non-shared) array
188       (was already working with singleCpuIO ; now works also without);
189       => no longer needs barrier call after reading a file (added inside
190       mds_read/write field).
191     - move barrier calls outside gather/scatter_2d to mds_read/write_field
192    o pkg/obcs/exf
193      - exf_getffieldrec.F: add a few ". _d 0" and
194                            add code to catch the case fldperiod = 0.  
195      - obcs_precribe_read.F: change if statements so that they match
196                              the variable type (_RL)
197      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
198        exf_iprec) as part of namelist EXF_NML_01
199    o pkg/mdsio:
200      - read/write tiled (local) files: read/write 1-level tile chunk at a time
201        (instead of segment of length sNx); expected to speed up tiled IO.
202    o pkg/exch2:
203      - take buffer copy from/to array out of S/R exch2_send/recv into new
204        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
205        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
206      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
207      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
208        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
209        including Topology header file (and common blocks).
210      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
211        remove 2nd exch call in exch2_s3d_rx (no longer needed).
212      - document S/R arg. list (+ update some comments)
213    o pkg/seaice:
214      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
215        temperature and humidity over sea ice based on climatological values.
216      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
217        of LSR (this change is expected to change the results slightly because now
218        it uses slightly difference moduli from the second last LSR solution, but
219        that is more consistent with the stress computations; this part of the code
220        is not tested in the verification experiments)
221      - fix diagnostics for flux of ice in case of B-grid
222      - turn strain rates eij and press into global fields within global
223        common block in SEAICE.h for more straighforward diagnostics
224      - fix diagnostics for principal stress components, press, zeta, eta
225        to give something meaning full
226    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
227      new output (all 4 tests) using default rotationPeriod.
228    o pkg KPP:
229      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
230      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
231        and normal grid from 1 to Nr)
232    o Fix computations of L4rdt in mom_calc_visc.F
233    o eesupp:
234      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
235      should be called before a "stop" if we know that all process are going
236      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
237    
238    checkpoint61o
239    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
240    o model/src/ini_curvilinear_grid.F:
241       compute angleSin/CosC when they are not read from a file
242    o pkg/seaice:
243       add pseudo time stepping for LSOR
244    o pkg/exch2:
245       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
246    o pkg/seaice:
247       Adding separate sea ice albedo, drag coefficients, and HO in Southern
248       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
249    o SingleCpuIO:
250       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
251    o pkg/seaice:
252       put exchanged variable in (local) common block for MPI+Multi-Threads
253       to work (necessary with exch1, and for now with exch2 too).
254    o verification: to get more experiments tested with mpi, mth and mpi+mth,
255      change tiling of:
256       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
257       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
258      update output of exp:
259       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
260       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
261      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
262                       (note: output.txt generated on faulks using only 1 tile)
263    o eesupp & mdsio (SingleCpuIO):
264     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
265       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
266       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
267     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
268     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
269       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
270    o pkg/exch2:
271     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
272       read parameter file "data.exch2" if it exists; otherwise try default regular
273       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
274     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
275       with new code (not to be used, just as a backup solution).
276     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
277       in utils/exch2/input.
278    
279    checkpoint61n
280    o eesupp & mdsio (SingleCpuIO):
281      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
282        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
283        receive real*4 array (instead of real*8) to read/write 32.bit files.
284        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
285         and remove new mapping S/R)
286    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
287      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
288        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
289        when using exch2. Add S/R to map global io-buffer to global model array.
290      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
291    
292    checkpoint61m
293    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
294      and add 3 other S/R for other types (R4,R8,RS).
295      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
296    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
297     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
298     - reduce number of macro definitions (keep only those which are used);
299       can always call directly the corrresponding S/R if needed.
300     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
301       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
302     Fixed wrong type of arg in:
303       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
304       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
305     To fix: global_sum of var in common block is wrong (multi-threaded) in:
306       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
307     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
308    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
309      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
310    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
311    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
312      edges are closed (zero depth); might happen with "blank tiles";
313      for now, disabled if using OBCS.
314    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
315      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
316    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
317      to reduce length of 1.D array print in STDOUT.
318    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
319      + use 48 tiles (16x8): this will allow to test "blank tiles".
320    o start to test MPI + multi-threaded (change testreport to skip tests
321      where number of tiles do not match).
322    o genmake2: add option "-omp" to turn on Open-MP ;
323      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
324    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
325      and keep the original tile numbering. Note: compatible with old
326      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
327    
328    checkpoint61l
329    o Overlaps had been forgotten in calculating ijk keys : fixed
330    o fix cyrus makedepend for gcc 4.4
331    o experiment fizhi-cs-aqualev20:
332      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
333      and generate new output. Note: new output is much closer to the old
334      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
335      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
336    o pkg/fizhi:
337     - change to avoid indices going deliberately over array-bounds
338     - remove unnecessary MPI stuff
339     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
340     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
341       does not go over array-bounds and therefore returns reliable output.
342     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
343       this S/R has 4 output arguments, which are used inside "get_alarm";
344       when it is called with the same variable "ndum" in place of several
345       output arguments, this produces weird side effect inside "get_alarm"
346      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
347       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
348       address) and produces error.
349    o tools/gemake2: (March 27-29 2009)
350      with option "-mpi": link *_mpi files from "MODS" dir (this is what
351      testreport does).
352    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
353    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
354       update lab_sea.lsr & lab_sea.salt_plume results
355    o pkg/seaice:
356      Major overhaul of the LSOR solver: change discretization from original
357      finite differences to finite volume. The old routine is still in the
358      file seaice_lsr.F and can be turned on with the CPP-flag
359      SEAICE_OLD_AND_BAD_DISCRETIZATION
360      Along with this change, the discretization of the strain rates is changed.
361      The same flag turns on the old discretization in seaice_calc_strainrates.F
362      All verification experiments with seaice are affected (except for
363      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
364      results by setting the above flag.
365      Further changes involve changes in defaults:
366      - ALLOW_FLOODING is defined and turned on by default
367      - SEAICEadvSnow = .true. is now the default
368      - SEAICEadvSalt = .true. is now the default
369      - SEAICEadvAge  = .true. is now the default
370      - SEAICE_clipVelocities  = .false. is now the default
371                                         (as per J. Zhang's recommendation)
372      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
373        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
374      - seaice_growth: replace computation of UG by a simple copy from wspeed
375    
376    checkpoint61k
377    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
378      seaice_lsr: fixed a few metric terms,
379                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
380                  add more debugging diagnostics
381      seaice_evp: removed superfluous many metric terms of FV discretization
382                  of stress divergence
383                  affects lab_sea, lab_sea.hb87
384      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
385                  of stress divergence for non-evp solver
386                  (this part is not tested anywhere)
387      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
388                  they were effectively only half slip
389                  affects lab_sea.hb87
390      updated all relevant verification experiments (except lab_sea//output_adm.txt
391        which was left over, but fails at level 7 & 6)
392    
393    checkpoint61j
394    o pkg/seaice: turn a few hard wired parameters into run time parameters
395    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
396      time in seconds as promised by the usints in seaice_monitor and exf_monitor
397    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
398      that are not cubed-sphere grids
399    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
400    o pkg/ctrl:
401      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
402    o non-hydrostatic (calc_gw.F):
403      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
404      update output of exp. global_ocean.cs32x15.viscA4
405    o remove backward compatibility for thetaMin,phiMin
406      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
407    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
408      interpolated wind field not only for curvilineargrid=.true., but also
409      for a rotated grid (rotateGrid=.true.)
410    o pkg/exf: add capability to bypass interpolation for runoff
411      by setting yet another CPP-flag
412    o eesupp/src, B-grid exchange:
413      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
414    o autodiff
415      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
416      allows to switch to single-prec common blocks;
417      corresponding switch occurs in tamc.h, integer isbyte
418      TAF store directivs "byte" and "kind" seem equivalent;
419      Most tamc.h have been updated correspondingly.
420    
421    checkpoint61i
422    o autodiff:
423      fix autodiff_sore/_restore indices for obcs
424      (spotted by I. Hoteit, M. Mazloff)
425    o pkg/autodiff, pkg/ctrl:
426      Add flag to reduce all tapelev I/O to single-prec.
427      In data.ctrl set
428        doSinglePrecTapelev = .TRUE.
429    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
430      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
431    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
432      real fresh water flux (not yet)
433    o pkg/mdsio & rw:
434     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
435     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
436    o pkg/flt:
437     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
438       init_fixed & ini_varia.
439     - clean-up & simplify linear interpolation S/R:
440       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
441     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
442     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
443     - add vert. coordinate & horiz. indices to output files.
444     - change vertical position in initial condition, from index to depth [m].
445     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
446       (easier to get to a curvilinear grid) ; delX,delY no longer used.
447    o pkg/ggl90: a few modifications:
448     - fix bottom boundary condition, and interpolation of KappaE
449       near top and bottom
450     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
451     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
452     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
453    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
454      (maintain temporary backward compatibility, until next checkpoint)
455    
456    checkpoint61h
457    o pkg/diagnostics with "periodic averaging diagnostics":
458      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
459    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
460    o pkg/obcs: fix loop ranges for balancing code
461    o pkg/flt:
462     - improve criteria for finding which tile owns a float.
463     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
464    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
465      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
466      with ocean biogeo)
467    o pkg/flt:
468     - do some cleaning and fix the restart ;
469     - add output.txt in flt_example/results to get this pkg tested.
470    o genmake2: add an EXTENDED_SRC option and flag.
471       for now, cannot be turned on on command line (only through genmake_local)
472    o pkg/mdsio: read/write vector:
473     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
474     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
475       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
476     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
477      (drop to 4 digits matching for grad). But this test does not look very
478      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
479    
480    checkpoint61g
481    o pkg/flt:
482      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
483       + make OPTIONS file more standard.
484      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
485      - fix _BYTESWAPIO CPP-Flag
486      - standard reading of file-parameter "data.flt"
487      - fix argument list of S/R FLT_RESTART
488      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
489    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
490    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
491      a still unfixed compiler/optimization bug
492    
493    checkpoint61f
494    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
495      update results of global_ocean.cs32x15.icedyn test.
496    o move getcon.F from model/src to pkg/fizhi.
497    o pkg/exf: add parameter for extrapolation of temp up to the surface
498       and option to prevent negative evap (in bulk_largeyeager04 only).
499    o Prather Advection scheme: fix tracer conservation for divergent flow
500      (e.g., when using NonLin Free-Surface).
501    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
502    o gmredi (Visbeck-variable-K):
503     - add more parameters to Visbeck-variable-K.
504     - use a 5 points average for dSigmaR in Visbeck-K calculation
505       (more "homogenous": same stencil and same weights as in dSigmaH)
506     - update output of ideal_2D_oce experiment.
507    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
508      (#undef REAL4_IS_SLOW)
509     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
510       coordinate variable
511     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
512       (surface forcing fields), removes some of the functionality
513     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
514     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
515       probably not all: copy _RS surface flux fields to RL field before
516       calling DIAGNOSTICS_FILL
517     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
518       real*4 (CALL EXCH_*_RS) versions.
519     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
520       (generate new output).
521    
522    checkpoint61e
523    o gmredi (Visbeck-variable-K):
524      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
525      - change computation of Visbeck-K where Slope > Smax :        
526        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
527        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
528    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
529      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
530    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
531    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
532      does not become too large (to avoid precision problems in implicit-diffusion
533      solver); update ideal_2D_oce output.
534    o pkg ggl90:
535      - in ggl90_cal.F: compute only one set of visc/diff, used to
536        step forward TKE/T/S/momentum
537      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
538        have Prandlt =1)
539    o gmredi (fm07):
540      - add lower limit on Transition layer thickness + lower limit on 1/lambda
541      - allow to set few more params from data.gmredi
542    o pkg ggl90:
543          - add missing sqrt(2) factor in computation of mixing length
544            scale in ggl90_calc.F
545            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
546    
547    checkpoint61d
548    o adjoint modifs
549      - adapt to new field rhoInSitu
550      - allow to revert from StoreDynVars2D, StoreDynVars3D
551        to individual fields
552        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
553    o store 3-D (in-situ) density in commom block (DYNVARS.h)
554     - save 1 rho computation.
555     - no longer modify T & S inland when using down_slope pkg.
556    o gad_som : allow to switch to SOM advection for T & S without corresponding
557      pickup files (using new S/R: MDS_CHECK4FILE).
558    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
559      (for useSingleCpuIO to work in multi-threaded)
560    o pkg/shelfice:
561     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
562       with SHELFICEtopoFile in data.shelfice
563     - move code for reading ice shelf topography and modifying hFacC into separate
564       subroutines of the shelfice package
565     - separate initialisation of "fixed" and "variable" variables
566     - kTopC is not (yet) replaced by kSurfC, although this is possible
567    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
568    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
569      and rename:
570      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
571      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
572    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
573    
574    checkpoint61c
575    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
576      to add mass source/sink of fluid in the interior (3-D generalisation
577      of oceanic real-fresh water flux).
578    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
579    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
580    o new pkg: down_slope
581      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
582      - presently, modify T & S inland (dwnslp_calc_rho.F).
583        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
584      - implementation for ocean in P-coords not tested.
585      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
586    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
587      (to facilitate conversion of oceanic pkg to p-coordinate).
588    o change FIND_RHO to FIND_RHO_2D :
589      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
590    o new pkg: cheapaml
591    
592    checkpoint61b
593    o exch2:
594      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
595      - no longer depend on the order sequence (N,S,E,W).
596      - 3rd exchange no longer needed (tested with 24 tiles).
597      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
598      - exch_UV_A-grid readily available (but not yet tested).
599      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
600      (both are no longer needed) in exch_uv: no effect in forward run; but
601       get truncation error differences with adjoint exch.
602    o exch2:
603     - change index-bounds storage (moved from target to local tile,
604       more intuitive this way) ; rename/remove some variables.
605     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
606    
607    checkpoint61a
608    o exch2/matlab-topology-generator:
609      fix bug in index bounds for N-S internal exchange (hard to tell if this
610      had any effect on the solution).
611    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
612      is exceeded
613    o testreport: modify syntax of awk, so that it works also with
614      awk, and not only with nawk and gawk
615    
616    checkpoint61
617    o autodiff
618      Change default for TAF usage by removing argument '-nonew_arg'
619      This changes TAF subroutine argument list (ordering of active var.)
620      Omission of this flag leads to incompatibility w.r.t. TAMC
621      To restore TAMC-compatibility, need following modifs:
622      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
623      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
624      Tested TAF version is 1.9.22
625      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
626    
627    checkpoint60
628    --->>> This is the last checkpoint for which generating the adjoint
629    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
630    --->>> by default.
631    --->>> Future checkpoints will ommit this flag by default.
632    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
633    o pkg/grdchk: Add gradient check to etan0 perturbations.
634    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
635    o pkg/autodiff: more flexibility in zeroadj.
636      model/src: modifying do_oceanic_phys.F accordingly.
637    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
638    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
639      special setup of gmredi for which the adjoint is stable
640      enough for parameter optimization.
641    o bridging the gap between eddy stress and GM.
642      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
643          along with a change in CPP option (now ALLOW_EDDYPSI).
644      -> when using GM w/ GM_AdvForm:
645          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
646          is applied either in the tracer Eq. or in momentum Eq.
647          depending on data.gmredi (intro. GM_InMomAsStress).
648      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
649      The key modifications are in model/src/taueddy_external_forcing.F
650      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
651    
652    checkpoint59r
653    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
654      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
655      fix option to read coriolis(@ cell-corner) from files with CS-grid.
656    o pkg/mnc: add some attributes to standard 1D-coordinate variables
657    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
658      mass points, when using mnc for output
659      - add runtime parameter (missing_value, missing_value_int) to override
660        default (which is the value of getcon('UNDEF'))
661    o pkg/mnc: prepare mnc for the actual use of missing values with the
662      diagnostics package: small fix in mnc_cw_readwrite.template and more
663      initialisation of never used fields
664      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
665      versions
666    o pkg/thsice/thsice_ini_vars.F added default initial values so that
667      thermodynamics sea ice solver does not blow up when some initial fields
668      are missing.
669    o move from external_forcing_surf.F to ini_forcing.F
670      the p-coord. hack consisting in using pLoad to set phi0surf ;
671      update output of tutorial_global_oce_in_p (affected @ truncation level).
672    o Freshen up a bit hs94.1x64x5, notably:
673      remove rotationPeriod and tRef=5*0. (adjoint only), and add
674      exactConserv=.TRUE.
675    o pkg/generic_advdiff:
676      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
677      applies to files where Temperature & Salinity 2nd Order moments are used.
678    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
679      this uses a dynamically allocated internal state data structure
680      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
681      and requires a fortran 90 compiler
682    
683    checkpoint59q
684    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
685       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
686    o Refresh tutorial_global_oce_biogeo, notably:
687      - change bathymetry (put back seamounts in ACC, use hFacs)
688      - change EOS (POLY3 --> JMD95Z)
689      - use Bryan-Lewis vertical diffusivity
690      - use multidimensional advection
691      - remove old virtual virtual in dic pkg, now done through ptracer pkg
692      - change a couple of parameters in dic pkg
693    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
694    o pkg/obcs: change default to OBCSfixTopo = .true.,
695      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
696      - replace "debugMode" with "debugLevel .GE. debLevB"
697    o implementation of TAF directives for gchem,cfc,dic
698    o remove "exp5" (replaced by tutorial_deep_convection).
699    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
700      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
701      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
702      --> changes results in exp4, seaice_obcs
703    o tutorial_deep_convection :
704      update the set-up and increase resolution and domain size ; start
705      from pseudo initial conditions = output at t=120mn in order to see
706      something happening when running testreport.
707    o pkg/seaice: add os7mp as an advection scheme
708                  add check for advection schemes
709                  add a flag for restoring T and S underneath sea ice
710    o pkg/my82: add netcdf-support and diagnostics
711    o thsice pkg:
712      - Now hsMax limits snow height by turning it into ice following
713        flooding scheme (and now conserving energy)
714      - Slight rewriting of the formula in thsice_calc_thick.F
715      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
716      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
717    
718    checkpoint59p
719    o gchem / dic / cfc :
720      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
721      - add new parameter files: "data.dic" & "data.cfc" ;
722      - various re-arrangement in initialisation & header file ;
723      - fix tutorial_global_oce_biogeo for multi-threaded test.
724    o pkg/dic: test for "pickup_dic" file when restarting ;
725      if no pickup-file, can restart with a re-initialised pH (same as it did
726      before) providing pickupStrictlyMatch is set to False.
727    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
728      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
729    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
730      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
731    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
732     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
733       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
734    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
735       scheme to use for vorticty-term ;
736     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
737       (with default selectVortScheme, return to original discretisation)
738     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
739    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
740    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
741      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
742      also fix diagnostics VISCAHW & VISCA4W.
743    
744    checkpoint59o
745    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
746    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
747      move a few statemens out the main loop into separate loops
748    o pkg/shelfice:
749      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
750        (kg/m^2/s), does not break tests, because in verification/isomip,
751        rhoConstFresh=rhoConst (by accident)
752      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
753      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
754        new file model/src/seawater.F, so that they are available for all pkgs.
755      - convert potential temperature into in-situ temperature. This changes the
756        isomip tests => update tests
757    o add a flag writePickupAtEnd (default=true) to be able to suppress
758      writing a pickup at the last timestep
759    o tools/mpack-1.6 :
760      - disable automake (not working) and autoconf (not needed).
761      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
762        also cleaner with much less compilation warnings.
763    o pkg/profiles:
764      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
765      (for "less than 32 characters name" compiler requirement)
766    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
767      conditions that have a different sampling frequency than S/T/U/V obcs
768    o pkg/diagnostics (stats-diags):
769      - fix global Min/Max in case 1 processor get only empty tiles
770    o genmake2: replace (4 times)
771         make genmake_tc_1.o >> genmake_warnings 2>&1
772      with
773         COMM="$CC $CFLAGS -c genmake_tc_1.c"
774         echo $COMM >> genmake_warnings
775         $COMM >> genmake_warnings 2>&1
776      to make genmake2 always see the value of CC as specified in the optfile.
777    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
778      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
779      - modify verification advect_cs test to test SOM-advection on CS-grid.
780    o pkg/ctrl:
781      - Rewrite of ctrl_map_ini_ecco.F,
782        introducing a generic routine (ctrl_map_ini_gen.F).
783      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
784    
785    checkpoint59n
786    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
787      number in dedicate array "hdiag":
788      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
789        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
790      - many small changes (integer format) for large number of diagnostics
791      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
792        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
793    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
794      usingSphericalGrid, this allows to define the rotated grid coordinates
795      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
796      geographical coordinates according to the inverse of the rotation defined
797      by the Euler angles, so that Coriolis parameter and online-interpolation by
798      exf works with the geographical coordinates on XC/YC/XG/YG.
799      Naturally, this feature does not work with all packages, so some
800      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
801      profiles), because there the coordinates are assumed to be regular
802      spherical grid coordinates.
803    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
804      - introduce isopycnal diffusion coefficient control.
805    o tools/adjoint_options:
806      - additional control vector components.
807    o pkg/mnc: have mnc create marginally meaning full coordinate variables
808      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
809    o pkg/mypackage:
810      - add example of read/write pickup for state-var ;
811      - add entry points to the main code for state-vars diags & write-pickup.
812    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
813      transitions for useExfYearlyFields
814      - add new subroutine that determines the file to read from for
815        use*YearlyFields = .TRUE. and .FALSE.
816      - add a verification experiment to global_with_exf that tests
817        useExfYearlyFields with USE_EXF_INTERPOLATION defined
818    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
819      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
820      subroutines (which could be generated from a template, because they are
821      almost identical), for now they are included in obcs_prescribe_read.F for
822      simplicity
823    o pkg/exf:
824      - add a little more diagnostic to exf_interp_read (in analogy to
825        mds_read_field, can be turned off with debugLevel < debugLevA=1)
826      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
827        ugly but fast by unrolling short inner loops, inserting a unroll=8
828        directive in routine lagran, and splitting a loop and making do while the
829        outermost loop (the latter requires the intoduction of index arrays)
830    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
831    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
832      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
833    o verification/seaice_obcs: updated for restart test and latest options
834    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
835      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
836      for now this is only available for the C-grid code and also within
837      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
838    
839    checkpoint59m
840    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
841      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
842    o gad_som : fix flux output (& diagnostics) to have same units as other  
843      advection scheme fluxes (was previously multiplied by deltaT).  
844    o added verification/seaice_obcs both to test seaice open boundaries
845      and to provide an example matlab scrpt for generating them
846    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
847    o pkg/salt_plume: clean up salt_plume_frac.F to
848      remove redundancy in PlumeMethod 1 and 4
849    o pkg/kpp: added saltplume diagnostics
850    o pkg/obcs and pkg/seaice:
851      - do not set uice and vice to zero when OB*icefile are unspecified
852      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
853      - moved seaice tracer obcs after call to seaice_growth
854    o pkg/salt_plume: added various options for salt plume depth
855      criterion and for vertical distribution of the salt
856    
857    checkpoint59l
858    o pkg/ptracers: new version of ptracers pickup:
859      read meta file and write only fields which are needed to restart.
860      ( same logic as main pickup file ; also using pickupStrictlyMatch )
861    o pkg/seaice:
862      - add timescale for melting due to warm mixed layer as a means of
863        setting SEAICE_availHeatFrac more conveniently
864      - add a CPP-flag/runtime parameter check for flooding algorithm
865      - reformulated availHeat in seaice_growth.F to be independent of AREA
866    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
867      unit changes
868    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
869    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
870      SX vector computer.
871    o pkg/seaice:
872      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
873        seaice forcing fields can now be read only through pkg/exf
874      - removed some unused halos
875    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
876    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
877      or U/VICE from U/VWIND before computing U/VSTRESS
878    
879    checkpoint59k
880    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
881      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
882    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
883      all experiments pass when compile with un-initialised var. checking option.
884    o added pkg/salt_plume
885    o script to test restart (for now, in MITgcm_contrib/jmc_script)
886    o pkg/seaice: new read/write pickup version.
887      read meta file and write only fields which are needed to restart.
888      ( same logic as main pickup file ; also using pickupStrictlyMatch )
889    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
890    o lab_sea.hb87: modify the domain & update output.hb87.txt :
891      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
892      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
893      process. Fixed here by closing the domain at the Northern boundary.
894    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
895    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
896      a set of consecutive levels in/from a 3-D array.
897    o pkg/ptracers:
898      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
899      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
900    
901    checkpoint59j
902    o in pkgs: dic, obcs, offline, rbcs:
903      standard way to compute coeff. for time interpolation between 2 time reccords
904      which retains full precision (& make results less dependent on compiler).
905      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
906    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
907      packages instead of reading ice cover and wind speed separately
908    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
909     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
910      to allow to compile customized code before the update)
911    o cleaning-up:
912      - fix CPP instruction syntax in pkg/obcs
913      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
914        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
915      - fix some threads issue in IO parts.
916    o pkg/dic:
917      - add tons of "_d 0" (--> much better testreports !)
918       and then update outputs of tutorial_global_oce_biogeo
919    o pkg/mom_fluxform:
920      add a special version of momentum advection intended to conserve momentum
921      next to a bathymetry step or a coastline edge. (default = off = #undef)
922    o new read/write pickup version:
923      - for now, only implemented for main (mdsio) pickup file.
924      - write out only what is needed to restart; merge pickup_nh , pickup_ph
925        and main pickup together.
926      - read meta file; read only what is needed to restart; stop if a field
927        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
928        if it make sense (even if the restart is not perfect).
929      - if no meta file, assume that pickup to read corresponds exactly to
930        a pickup that would currently be written.
931      - read pickup written in the old format (until checkpoint59i) if it
932        recognizes an old meta file (no field-list).
933      - add a meta file in exp. which starts from a pickup: 2 cases:
934        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
935         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
936        b) a meta file describing the content of the associated pickup file
937         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
938    o pkg/mdsio & pkg/rw:
939      - new routine to read a meta file ; new set of routine to read
940        Multiple-fields file (with meta file).
941    o added open boundary conditions capability for seaice
942        HSNOW, HSALT, UICE, and VICE
943    
944    checkpoint59i
945    o adjoint:
946      * fix multiDimAdvection adjoint
947        (partial recomputation problem by TAF for fVerT(:,:,kDown)
948        and comlev1 size definition (maxpass vs. max. number of tracers)
949      * verification/global_ocean.90x45x15 adjoint now tests
950        NLFS and multiDimAdvection using DST3 (=30)
951      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
952    o pkg/kpp: add "_d 0" to real constant (if missing);
953      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
954      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
955    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
956      for internal parameters related to restart process (formerly from PARAMS.h)
957      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
958    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
959      as argument. (only atm2d & obcs write_pickup have not yet been updated)
960    o pkg/monitor:
961      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
962      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
963      - account for deep Atmosphere factor and density factor (anelastic)
964    o added open boundary conditions capability for seaice HEFF and AREA
965    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
966      thermodynamics
967      - requires a little reorganization, which affects the testreport results
968        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
969        so that now the conservative form is tested
970      - add a few comments
971    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
972    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
973    o add new diagnostics to seaice: advective, diffusive fluxes (only for
974      multidim-advection, for scheme 2 they are not filled) and transports,
975      thermodynamic growth rates
976    o change units of EmPmR (inside the code, + within coupling interface)
977      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
978      Affects results @ truncation level (cg2d match) and update output of
979       experiments: lab_sea(6), global_ocean.90x40x15(10),
980      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
981      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
982      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
983      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
984    
985    checkpoint59h
986    o pkg/exf:
987      - improve vectorization by moving if-statement out of loops in
988        exf_mapfields, exf_radiation
989      - exf_bulkformulae.F: introduce 2D fields and vectorize code
990    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
991    o testreport:
992      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
993        monitor & update offline_exf_seaice exp. output.
994      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
995    o pkg/seaice:
996      - bug fix in the evp solver: boundary conditions were affected be
997        masking of zMax/zMin (changes results)
998      - minor bug fix in boundary conditions in seaice_calc_strainrates
999        (changes results for no_slip)
1000      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1001      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1002      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1003        stress formulation and no-slip boundary conditions
1004    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1005      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1006    o pkg/seaice: a first HSALT time stepping equation has been checked in
1007    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1008      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1009      without requiring DO-IF statements
1010    o pkg/thsice:
1011      use continuous power-law function for partition of energy between lateral
1012      melting/freezing and thinning/thickening ; old code using step function
1013      still available with #undef THSICE_FRACEN_POWERLAW
1014      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1015    o testreport: change AD testing : check against results/output_adm.txt
1016      using same scripts as for forward test.
1017    
1018    checkpoint59g
1019    o adjoint testing: in preparation for changing testreport:
1020      - output format: cost and grad written on separated lines
1021      - ad output results in directory "results" (instead of "results_ad")
1022    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1023    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1024    o pkg/ecco: allow user defined cost function contributions
1025    o testreport:
1026      Allow to choose (per experiment) the list of tested output variables
1027       and the main variable (used to issue a pass/FAIL ) ;
1028      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1029      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1030      Also modify printing of summary:
1031       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1032       b) echo the list of tested variables in the individual summary.txt of
1033          each experiment.
1034    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1035      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1036      (but still depend on the tile decompostion of the domain).
1037    o pkg/seaice: change a discretization detail to make the B-grid code
1038      "more symmetric". This change is likely to remove all "ridges/leads" that
1039      where quasi-aligned with the grid in B-grid solutions. It may also be
1040      the solution to the stress coupling issues with the B-grid.
1041    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1042      remove .cvsignore from input dir. (since testreport no longer run here).
1043    o pkg/thsice:
1044     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1045     - fix reshaping of sea-ice just after advection:
1046       melt all the ice only if ice-volume is too small.
1047     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1048       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1049     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1050    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1051      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1052    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1053      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1054      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1055      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1056      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1057      -> update output.txt
1058    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1059     this affects truncation error: -> update output.txt of exp:
1060      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1061      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1062    
1063    checkpoint59f
1064    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1065    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1066      a bounded range (in forward mode)
1067    o pkg/ecco, ctrl, autodiff and mom_common:
1068     internal parameter controls, completements of implementations
1069    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1070    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1071      (not seem any difference in testing results).
1072    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1073       at face corners.
1074    o pkg/generic_advdiff:
1075     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1076      loop range indices for computing vertical advection tendency
1077      and do the calculation in the interior only (no overlap) ;
1078      for now, only implemented for SOM advection (to save CPU time).
1079     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1080    o exch2 adjoint
1081      First set of changes:
1082      - add exch2 hand-written adjoint templates
1083      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1084        This will require cleanup in pkg/autodiff/*.F
1085        (changed routines currently kept separate in verif. code/)
1086      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1087        that used to hide exch2 or cubed-sphere specific code
1088        (commented via 'cph-exch2')
1089    o pkg/seaice
1090      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1091    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1092       output of global_ocean.cs32x15.thsice .
1093    
1094    checkpoint59e
1095    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1096      for B-grid vector (not yet tested) and C-grid vector (<- only used
1097      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1098    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1099      (#ifdef ALLOW_SALT_PLUME)
1100    o gather_2d/scatter_2d: removed halo regions
1101    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1102      scheme and the corresponding test case (under front_relax dir). For now,
1103      only available with Skew-flux form and not yet tested in realistic set-up.
1104      adjoint: store directives updated, but gradient checks deteriorated,
1105      so maybe GM/Redi adjoint is now broken.
1106    o seaice adjoint
1107      * add AREA, HEFF, HSNOW as control variable
1108        (should not change lab_sea results)
1109      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1110    o pkg/seaice:
1111      * added computation of saltFlux in seaice_growth;
1112        For time being, sea ice salinity is assumed constant
1113        contribution of snow flooding to freshening of sea ice is neglected.
1114        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1115        defaults to 0.0 in order to maintain backward compatibility.
1116        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1117      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1118      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1119        heat content used to melt or grow ice
1120      * commented out cap of HICE: it helps keep ice thinner
1121      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1122      * applied OBCS T/S mask to HEFFM sea ice mask
1123    
1124    checkpoint59d
1125    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1126     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1127     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1128    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1129     and change default value of parameter "GM_Small_Number";
1130     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1131       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1132       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1133    o pkg/ecco: cost function when applying pkg/smooth to controls
1134    o pkg/ctrl: add forcingPrecond run time parameter
1135    o pkg/seaice:
1136     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1137     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1138       changes verification/lab_sea
1139     - rearrange implicit part of u-equation in LSR solver to make it easier to
1140       read, understand, and debug. This causes changes at the truncation level.
1141     - fix (serious) bug in the boundary conditions (sign error in the implicit
1142       part) of the LSR solver. Changes all LSR results.
1143     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1144       is initilized with small values - does not change lab_sea results.
1145     - added HsnowFile initialization capability
1146    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1147     initialization of pkg/smooth and application to control vector
1148    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1149    o dependencies: pkg/profiles requires pkg/cal
1150    o pkg/profiles:
1151     - added option ALLOW_PROFILES_GENERICGRID
1152         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1153         that interpolation information (grid points and coefficients) is provided
1154         within the netcdf input files.
1155         -> sample matlab scripts can be found in MITgcm_contrib/gael
1156         that allow you to prepare netcdf input files.
1157     - also modified: cleaner include statements, cleaner error print statements,
1158       cleaner stops when error, and more tests of the netcdf input files consistency.
1159    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1160    o pkg/seaice:
1161     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1162       requires a new routine: seaice_diagnostics_fill.F
1163     - make sure that seaice does not move if not forced (pressure replacement
1164       method, Hibler and Ip, 1995), changes results
1165     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1166     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1167       It is turned off by default (=-1.), because it changes the results.
1168     - make it possible to read AREA from a file, too.
1169    
1170    checkpoint59c
1171    o add S/R and diagnostics for oceanic mixed-layer depth
1172    o move GMRedi call after all vertical mixing schemes (including KPP)
1173    o pkg/thsice:
1174     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1175      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1176    o pkg/obcs:
1177     - bug fix for balance code
1178    o pkg/seaice:
1179      - allow values of SEAICE_elasticParm > 1
1180      - add new parameter SEAICE_evpTauRelax as an alternative
1181        to SEAICE_elasticParm
1182      - make lsr boundary conditions free slip (by default), changes result
1183      - add code for no slip boundary conditions for lsr
1184      - set minimum of zeta to zero (and not 4e8) (changes results)
1185      - add a cap on AREA after advecting AREA if seaice_growth is not called
1186    o change calculation of Visbeck K:
1187      - no longer depend on tapering scheme; instead, compute slope (limited
1188        by GM_maxSlope). this is equivalent to what was comuted before with
1189        clipping or linear tappering.
1190      - fix vertical averaging (wrong by 1/2 level)
1191      - leave the old version (but will not be maintained) within
1192        #ifdef OLD_VISBECK_CALC / #endif
1193      - update output of exp. ideal_2D_oce
1194    o change error catch in calc_r_star to improve vectorization
1195    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1196      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1197    o adjoint:
1198      Re-organized adjoint checkpointing according to Matt Mazloff
1199      (but with modifs/completions/cleanups)
1200      Storing is now bundled into large arrays to optimized I/O
1201      (and second step in cleanup of the_main_loop)
1202    
1203    checkpoint59b
1204    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1205      - export/import (between ocean & coupler) fields needed for ocean DIC.
1206    o pkg/seaice:
1207      - get rid of three more exchanges seaice_calc_viscosities (required
1208        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1209      - bug fix in seaice_ocean_stress (update of lab_sea required)
1210      - reduce loop boundaries to necessary minimum also in seaice_evp
1211      - go back to the old way of computing deltaC/Z as the adjoint likes that
1212        better
1213    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1214      passive tracer to an Age Tracer) + update output.txt
1215    o pkg/exf:
1216      - implement A-grid / C-grid selection for wind-stress input files.
1217      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1218      for now, in exf_bulk_largeyeager04.F only :
1219      - change implementation for case where windspeed + 2. components wind-stress
1220        are read-in. AND use rhoConstFresh to convert evap.
1221    o pkg/seaice:
1222      - use correct EXCH_UV for wind-forcing (on A-grid).
1223      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1224        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1225    o pkg/exf:
1226      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1227      EXF_INTERPOLATION:
1228      - merge global_with_exf/code version of exf_interp_read.F
1229        to the main code ;
1230      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1231        reading the file ; Important: This options needs to be defined to recover
1232        previous code.
1233        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1234      - no longer loose real*8 precision along the way when using exf_iprec=64.
1235    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1236      - change discretisation of evp-solver in order to avoid another exchange
1237        (changes lab_sea) and clean up a little
1238      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1239        help the adjoint (this also changes the results slightly)
1240      - add a few "_d 0" where they had been missing in seaice_evp.F
1241      - cleaning up: remove unused seaice_calc_rhs.F
1242    o pkg/exf: some cleaning-up:
1243      - change various "constants" into runtime parameters
1244      - cleaned-up Large&Yeager04 routine which should eventually
1245        replace exf_bulkformulae.F (changed names of S/R and CPP)
1246        and merged various ALLOW_ATM_WIND options
1247     only used with thsice pkg (in thsice_get_exf.F):
1248      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1249        which are used when useStabilityFct_overIce=TRUE (= the default)
1250      - change default values of ice & snow emissivity and scale downward LW
1251        by ice & snow emissivity.
1252    o pkg/thsice:
1253     fix few little problems, in thsice_calc_thickn.F:
1254      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1255      - melt only laterally if hIce < hThinIce (as the comments say)
1256      and in thsice_extend.F:
1257      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1258      - start to form ice as soon as the minimum ice-volume is reachable.
1259     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1260      and cpl_aim+ocn
1261    o pkg/kpp
1262     - move computation of surface related input fields to KPP into a new
1263       subroutine kpp_forcing_surf.F
1264     - remove wrong (within bi,bj loops) EXCH calls.
1265     - little cleaning (add argument myThid in last position, cvs header ...)
1266     - for now, fix conservation problem by exchanging KPPviscAz (may not
1267       be the best fix)
1268    o pkg/seaice
1269     - check for inconsistent evp parameter/cpp-flag combination
1270     - remove leftover errIO flat for obsolete name list error handling
1271    o OpenAD
1272     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1273    
1274    checkpoint59a
1275    o pkg/seaice: some parameter clarifications and a little bit of clean up
1276    o pkg/thsice: rename run-time parameters:
1277       himin       -> hIceMin
1278       himin0      -> hThinIce
1279       hihig       -> hThickIce
1280       i0          -> i0swFrac
1281       transCoef   -> bMeltCoef
1282       frac_energy -> fracMelting
1283      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1284       with default values (for now) that do not change the results.
1285      remove old version of thsice vars advection in pkg/seaice.
1286    o in FFIELDS.h:
1287      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1288      - make pLoad & sIceLoad always available (but still only used if
1289         ATMOSPHERIC_LOADING is #define).
1290    o pkg/kpp: replaced _KPP_RL with _RL
1291    o bug fixes for vertical diffusivity computations when both KPP and
1292        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1293        are no longer updating the vertical diffusivity array
1294        (passed as argument) but are (re-) setting those arrays.
1295    o pkg/seaice: fix bug in evp solver, while doing that
1296      - change (improve?) discretization of stress computations for both
1297        cgrid-lsr and evp solver
1298      - add a new routine to compute strain rates
1299      - the above changes lab_sea results
1300      - add no slip conditions for evp solver (off by default), lsr-version
1301        may follow
1302      - fix exchange for shear at Z-points (does not change lab_sea)
1303      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1304        (to force the user to pick a time step since there is not "safe" way
1305        of choosing it)
1306      - add principal stress diagnostics
1307      - rearrange fields for evp a little to avoid having to call a: too many
1308        exchanges and b: exchanges for stress trensor components which we do
1309        not have.
1310      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1311        of evp, complete rewrite for lsr case (latter is does not yet work
1312        in all cases)
1313    o pkg/kpp: add code to have mixing in shelf ice caverns
1314      - add myThid to all kpp routines (long overdue)
1315    
1316    checkpoint59
1317    o pkg/exf:
1318      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1319        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1320      - move exf header files from lower_case.h to UPPER_CASE.h ;
1321        add missing cvs Header & Name
1322      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1323      - add namelist param. selectStressGridPosition, exf_monFreq
1324      - retire many _CLIM routines, and remove data.exf_clim
1325        + params moved to data.exf
1326        + climsst, climsss now handled by exf_set_gen, i.e.
1327          climss?period=0 refers to constant field,
1328          climss?period=-12 to monthly forcing
1329      - split up namelists in data.exf
1330    o pkg/seaice:
1331      - remove seaice_exch and seaice_exch_uv
1332      - remove superfluous exchange of theta
1333      - add myThid to seaice_budget_ocean/ice
1334      - add new interface for atmospheric wind forcing (C-grid only)
1335        + new routine
1336        + two new field (taux, tauy for stress over ice)
1337        + removed one global field (DAIRN) for C-grid case only
1338    o pkg/thsise
1339      - 2nd set of modifs for thsice adjoint in conjunction with exf
1340    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1341    
1342    checkpoint58y_post
1343    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1344      vertical diffusivity, similar to that in MOM4; turned on using
1345      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1346      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1347    o Added capability for 3D specification of background vertical diffusion
1348      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1349      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1350      "data" file that contains the 3D vertical diffusivity coefficients.
1351    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1352      - add code within pkg thsice to advect & diffuse sea-ice fields
1353      similar to (and will replace) what has been added in  seaice_advdiff.F,
1354      but: - conserving Mass, Heat & Salt.
1355           - better when using non-linear advection scheme (not yet fully tested)
1356           - can also be used in atmospheric set-up (for now, only the diffusion).
1357    
1358    checkpoint58x_post
1359    o IO option for global-file compact format:
1360      - add options when generating topology (utils/exch2/matlab-topology-generator)
1361      - add I/O capability (pkg/mdsio).
1362      - adapt utils/matlab/rdmds.m to read this format.
1363      for now long-line format not yet supported by pkg/mdsio (& exch2).
1364    o shelfice: add a few diagnostics
1365    
1366    checkpoint58w_post
1367    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1368      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1369      (and replace horiVertRatio in NH code).
1370      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1371                         and tutorial_plume_on_slope (sensitive to truncation)
1372    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1373      directly to drive seaice model (C-grid only)
1374    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1375     - reintroduce computation of wind from stress,
1376     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1377       mass points to avoid tau = 0
1378     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1379    o rdmnc.m: make it work with "global" files created with gluemnc
1380    o rdmnc.m : some improvements in dealing with singleton dimension
1381      (tested on all testreport mnc output files).
1382    o genmake2: disable pkg/profiles if netcdf test fails.
1383    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1384    o move call to cal_readparms up to make calendar parameters/variable available
1385      to all packages
1386    
1387    checkpoint58v_post
1388    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1389      useDynP_inEos_Zc tested.
1390    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1391    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1392      and portions thereof.  See read_cs.txt for description and examples.
1393    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1394      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1395      following the great-circle arc between those 2 points.
1396    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1397      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1398    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1399     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1400     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1401     - still needs work (not working with some options ; efficiency to improve)
1402       and serious testing.
1403     - use this scheme for temperature & salinity in 2 advection test exp.:
1404       advect_xy & advect_xz, respectively.
1405    
1406    checkpoint58u_post
1407    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1408    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1409    o testreport: add option "-skipdir" to skip some test.
1410    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1411      momentum calculation.
1412    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1413    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1414      remove checkpoint.F and the_correction_step.F (no longer used);
1415      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1416    o add option (linFSConserveTr) to correct for tracer source/sink due to
1417      Linear Free surface
1418    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1419    o pkg/thsice: fix reading mnc-pickups
1420    
1421    checkpoint58t_post
1422    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1423    o pkg/mdsio:
1424     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1425       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1426       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1427     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1428     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1429       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1430     - new S/R (to replace MDSWRITEMETA), which allows to write more
1431       informations (variable names, time ...) to meta files.
1432     - modify rdmds.m to give back the meta file content.
1433    o pkg/diagnostics: change vertical interpolation to be safer, and more
1434       flexible (define p-levels to interpolate to in data.diagnostics);
1435      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1436       diagnostic pointer.
1437    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1438    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1439    o fix multi-category seaice:
1440     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1441       SEAICE_MULTICATEGORY
1442     - fix short wave heat flux
1443    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1444       and allow to use EVP solver. Change forward lab_sea: test both EVP
1445       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1446    o Initial check-in of lab_sea adjoint
1447      (very similar to natl_box_adjoint/code_seaice)
1448      * used C-grid and EVP solver
1449      * used KPP, GM/Redi
1450      * uses inAdExact=.TRUE.
1451      * gradient checks fail for both ADM and TLM
1452        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1453        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1454        issue is related to forward mismatch between g77 an ifort
1455    o pkg/seaice: overhaul of thermodynamics
1456     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1457     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1458     - move a few global fields out of SEAICE.h into seaice_growth.F and
1459       make them 2D (FICE/QNETO/ ...)
1460     - remove FO (it is the same as QNETO)
1461     - introduce a few local fields to avoid modifying external fields such
1462       as atemp, etc.
1463    
1464    checkpoint58s_post
1465    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1466      changed exf_set_gen.F so that
1467        genperiod=0 means input file is one time-constant field and
1468        genperiod=-12 means input file contains 12 monthly means
1469    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1470      this affects truncation error ; generate new output file for exp. which
1471      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1472        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1473        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1474        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1475        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1476        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1477    o start implementation of deep-atmosphere and anelastic formulation
1478    o verification: remove 2nd copy of input files and use script "prepare_run"
1479      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1480    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1481    o profiles: fix for multithreaded case
1482    
1483    o diagnostics: rename few diags:
1484      s/'PRESSURE'/'RCENTER '/g
1485      s/'TICE    '/'oceFreez'/g
1486      s/'TAUX    '/'oceTAUX '/g
1487      s/'TAUY    '/'oceTAUY '/g
1488      s/'SWFLUX  '/'oceQsw  '/g
1489      s/DIFx/DFxE/g
1490      s/DIFy/DFyE/g
1491      and add few ocean-forcing diagnostics:
1492      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1493    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1494      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1495      as actual snow thickness.  It now refers everywhere to effective snow
1496      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1497    
1498    checkpoint58r_post
1499    o modifications to pkg/seaice/growth.F, which change results of
1500      lab_sea experiment: fixes pertain to melting snow over open water, to
1501      masking EVAP under sea ice, and to using the correct AREA variable for
1502      computations of EVAP, PRECIP, HSNOW, and GHEFF
1503    o add ability to read bathy, salt, and theta using MNC (off by def)
1504    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1505      both are turned off by default and do no change any results
1506    o seaice advection with pkg/thsice: a step toward the use of non-linear
1507      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1508    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1509      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1510      in natl_box (affects results @ truncation level: update output.txt)
1511    o multi-threading and IO:
1512      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1513      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1514        (needed to work with SingleCpuIO): tested in all verif. exp.
1515    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1516      affects the results (but none of the verification test uses this scheme).
1517    o Adding some pkg/diagnostics capability to pkg/seaice
1518      (will certainly be subject to changes)
1519    o ctrl: adding new control variables:
1520      lwflux, lwdown, evap, snowprecip, apressure, runoff
1521    
1522    checkpoint58q_post
1523    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1524      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1525      high_res_cube configuration by 4% on Columbia.
1526    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1527      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1528      dynamical allocation (seems to work in multi-threaded).
1529    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1530      single CPU io) so that TAF does not have to see EESUPPORT.h
1531    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1532    
1533    checkpoint58p_post
1534    o obcs: stop if obcs is used with useCDscheme = .true.
1535    o shelfice:
1536     - fix a sign error so that no slip at shelfice interface works
1537     - remove stop for combination non-hydrostatic code and shelfice. That does
1538       not mean, that the results are correct, but at least they are numerically
1539       stable
1540    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1541    o added adjoint exch routined for all exch*3d* routines
1542      and updated flow directives
1543    
1544    checkpoint58o_post
1545    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1546      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1547    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1548      and clean-up reading/writing of pickup files.
1549    o fix local version of read/write pickup (NH part) in rotating_tank/code
1550    o simplify EXCH interface:
1551     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1552     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1553    o added the regrid package
1554    o shelfice:
1555     - add a simple boundary layer scheme to reduce noise
1556     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1557    
1558    checkpoint58n_post
1559    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1560       local variable (not in common block).
1561    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1562      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1563      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1564        to work with SingleCpuIO.
1565    o add "_d 0" to real constant of pkg/cfc subroutines ;
1566       update exp. cfc_exemple & tutorial_cfc_offline output files.
1567    o multi-threading and IO:
1568      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1569        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1570      - barrier before and after reading.
1571      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1572      - avoid using MDS_WRITELOCAL for LAND pkg output.
1573      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1574        common-block variables ; Allows multi-threading with master-thread IO.
1575    o change default MAX_NO_THREADS from 32 to 4 ;
1576      and stop cleanly when MAX_NO_THREADS is too small.
1577    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1578    
1579    checkpoint58m_post
1580    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1581       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1582    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1583       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1584       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1585    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1586        add MITgcm_tutorials (= code + all the tutorials)
1587    o ecco, option to compute cost for total ssh (mean+anom)
1588    o consistent with addition of ptracer and ssh in pkg/profiles
1589    o profiles: adding ptracer and ssh
1590    o testreport: change multi-test output-file name
1591      (from output.txt.{name} to output.{name}.txt)
1592    o profiles: now ok for mutli-tiles case
1593    o seaice: add 4 parameters for different advection schemes for area,
1594      (effective) seaice thickness, enthalphy, and snow height. Their default
1595      is the standard parameter SEAICEadvScheme
1596    o calc_gw:
1597     - add cosFacU in zonal viscous flux (harmonic.visc.).
1598     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1599       of tutorial_plume_on_slope.
1600    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1601    o calc_gw: true flux-form, account for horizontal grid spacing.
1602      update rotating_tank results, but not plume_on_slope (affected at
1603      truncation level, 11 digits).
1604    
1605    checkpoint58l_post
1606    o calc_gw:
1607     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1608     - remove side-drag for now (need to fix it); update plume_on_slope results.
1609     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1610    o commit code to make SST/SSS weights spatially variable
1611      (based on either variable in-situ or variable initial T/S weights)
1612    o pkg/ecco:
1613      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1614        now based on horizontally varying weights wthetaLev, wsaltLev
1615      * cost_averagesflags now returns year indices in addition to day, month
1616      * sflux balance is performed on annual basis
1617        (sflxumm, sfluxmm2, bal_sfluxmm)
1618      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1619        including separate counting and multipliers
1620    o pkg/rbcs
1621      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1622    
1623    checkpoint58k_post
1624    o testreport:
1625     - always build in dir. "build" (if not there, mkdir build instead of building
1626       & running in input)
1627     - run in dir run (if it exists), in build otherwise.
1628     - call prepare_run (if input/prepare_run exists)
1629     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1630    o pkg/exf modifications to interpolation and rotation routines for more
1631       reasonable treatment of North Pole singularity: for tracers North Pole
1632       value is set to northernmost zonal-mean value, for zonal velocity it is
1633       set to zero, and for meridional velocity it is set to northernmost value.
1634    o pkg/exf/exf_check_range.F
1635     - add tile index to diagnostics and move stop statement to the very
1636       end of the routine.
1637    o pkg/diagnostics: (diagnostics_main_init.F)
1638      define title of isomorphic variables according to the current config.
1639    o pkg/thsice with pkg/seaice dynamics:
1640    - fix domain of computation (interior only, required for exf) and do exchanges
1641    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1642    o towards a standard way of dealing with multi-threading in MONITOR
1643      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1644    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1645       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1646    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1647    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1648    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1649       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1650    o tracer advection:
1651     - clean-up and simplify calc_common_factors.F
1652     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1653       advection subroutine (but still not used within DST advection S/R)
1654    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1655    
1656    checkpoint58j_post
1657    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1658      from file (collects calls previously in FORWARD_STEP)
1659    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1660    o adjoint store dir. adjusted accordingly
1661    o genmake2
1662      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1663    
1664    checkpoint58i_post
1665    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1666      on wind stress (SEAICEstressFactor defaults to 1.)
1667    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1668      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1669    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1670      on CS-grid: no longer loosing mass.
1671    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1672    o pkg/ggl90: fix sloppy output and fix a bug
1673    o pkg/seaice: added SEAICEuseEVPpickup parameter
1674      - Set to false in order to start EVP solver with
1675        non-EVP pickup files when using SEAICEuseEVP
1676      - fix sign error in diffusion in seaice_calc_rhs
1677    
1678    checkpoint58h_post
1679    * Modifications for bottom topography control
1680      o replace hFacC by _hFacC at various places
1681      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1682      o add non-self-adjoint cg2d_nsa
1683      o update autodiff support routines
1684      o re-initialise hfac after ctrl_depth_ini
1685      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1686    * Adding verification for 5x5 box (4-layer) bottom topography control
1687    
1688    checkpoint58g_post
1689    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1690       used for mean seasonal cycle, mean diurnal cycle); add an example
1691       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1692    o pkg/ggl90:
1693      - add parameter (minimum surface kinetic energy)
1694      - fix bug (avoiding division by zero)
1695    o couple pkg/thsice to pkg/seaice:
1696      - modify advection in seaice to accomodate new scalar fields to be advected
1697      - only muliDimAdection scheme work with seaice/thsice
1698      - mapping of thsice-variables to seaice-variables, back and forth
1699      - does not break the verification experiments, but does not give the
1700        desired results either
1701    o pkg/seaice
1702      - make (default) second order advection a bit less confusing?
1703    
1704    checkpoint58f_post
1705    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1706      to pkg/seaice):
1707      - new routines thsice_map_exf and thsice_get_exf provide the interface
1708      - add an additional formal parameter to thsice_solve4temp
1709    o pkg/exf:
1710      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1711      - correct Stefan-Boltzmann constant
1712      - new parameter for longwave surface emittance
1713      - separate some stuff from exf_bulkformulae into new routines  
1714        exf_radiation, exf_wind
1715      - add new parameters and constants: longwave emissivity for ocean, ice
1716        and snow, evaporation parameters over ice
1717      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1718        either wind from stress or stress from wind
1719    o pkg/thSIce:
1720    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1721    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1722       and THSICE_CALC_THICKN
1723    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1724    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1725      to make debugging easier.
1726    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1727    o pkg/bulk_force:
1728      - clean-up comments and parameters ;
1729      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1730    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1731      generate new output for test-experiment: aim.5l_cs.thSI
1732    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1733      testreport accordingly
1734    
1735    checkpoint58e_post
1736    o SEAICE_CGRID adjoint done
1737    o R_STAR adjoint implemented.
1738      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1739      * need to sort out init. of h0facc, etc.
1740    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1741      to be able to use it in pure forward.
1742    
1743    checkpoint58d_post
1744    o upgrade simple test-experiment to tutorial example:
1745     step.1: duplicate the experiment and (step.2) will remove the old copy.
1746      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1747      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1748      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1749      tutorial_global_oce_biogeo    <- copy of dic_example
1750      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1751      tutorial_plume_on_slope       <- copy of plume_on_slope
1752      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1753      tutorial_global_oce_optim     <- empty for now (David ?)
1754      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1755     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1756    o correct a sign problem in cost_scat.F
1757    o obcs and ptracers: fix boundary conditions for advections schemes
1758      with larger stencil
1759    o thsice adjoint: start
1760    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1761      completeness
1762    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1763      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1764    o ptracers adjoint:
1765      * avoid extensive recomputatations
1766      * fix missing re-init. of gptr (missed by TAF)
1767    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1768      me to turn off the excessive output to STDOUT that this package produces
1769    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1770      and add those terms in Vector-Invariant formulation.
1771    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1772      if the control period (xx_hfluxperiod etc) is 0
1773    o in profiles pkg, clean routines and fix details
1774    o in ecco pkg, reading ssh data:
1775      fix problem in case the model does not start at iter0=0
1776    o fix mnc-pickup/restart for ptracers
1777    o new package prifiles:
1778      code to compute profile-based cost by Gael Forget
1779      (modifs in ecco, ctrl, autodiff)
1780    o Benign bug fix in initialization (spotted by M. Mazloff) of
1781      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1782    
1783    checkpoint58c_post
1784    o adjoint: finish NLFS adjoint and provide reference output in
1785      verification/global_ocean.90x40x15/results_ad_nlfs
1786    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1787      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1788      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1789      with SEAICE_CGRID defined.
1790    o move calendarDumps from "data" to "data.cal" and clean-up the code
1791      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1792    o add useEXF & useCAL flags (for now, set in hard-coded way)
1793    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1794      (were missing in NH mode, and wrong in quasihydrostatic mode).
1795      waiting for Chris updated version of calc_gw to add those CALLs.
1796    o fix bug in quasihydrostatic S/R ;
1797      add a test for this option: global_ocean.90x40x15.qshyd
1798    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1799      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1800    o add on/off flag useOffLine for package OFFLINE
1801    o seaice:
1802      - modify advection so that it works also on the C-grid
1803      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1804        problem in multi-tile runs with C-grid
1805      - add flags for clipping ice velocities and/or masking solver forcing
1806      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1807        C-grid solver
1808      - added a few comments to seaice_diffusion.F
1809      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1810        are now exclusive)
1811      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1812        required re-ordering the code a little:
1813       + make DAIRN global variable (defined in SEAICE)
1814       + move computation of the viscosities eta and zeta into a new separate
1815         routine (because I need to recompute them in seaice_ocean_stress.F)
1816    
1817    checkpoint58b_post
1818    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1819      update output.txt of exp. aim.5l_cs.thSI
1820    o various mnc cleanups and improvements:
1821      + shrink lookup tables by factor of ~4
1822      + better error reporting when running out of lookup space
1823      + able to handle longer path/file names (up to 500 chars)
1824    o adjoint:
1825      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1826      - TBD: "hidden" mom_vecinv recomp. in dynamics
1827    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1828     (allow to differentiate between forcing components using new integer flags:
1829      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1830     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1831    o ecco
1832      - enable trend removal from SSH anomaly obs.
1833    o adjoint
1834      - a fix for PmEpR when #undef EXACT_CONSERV
1835      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1836      - try to fix "hidden" recomp. in forward_step for NLFS
1837        (NLFS seems broken sometimes after I checked it in)
1838    o seaice:
1839     - add c-grid version of the dynamic solver:
1840       + three new routines that are the c-grid substitute lsr, dynsolver
1841         and ostres
1842       + put a few fields that were local to dynsolver into global common
1843         blocks, so that I can move the computation of stresses etc into
1844         seaice_lsr (saves coding but may break the adjoint).
1845     - replace more hardwired parameters by runtime parameters
1846     - add ice masks that mask the rhs of the implicit solvers where there
1847       is no ice (commented out in seaice_dynsolver, because i am not sure
1848       if this works properly), eventually this should replace the clipping
1849       of ice velocities in seaice_dynsolver to +/-40cm/s.
1850    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1851      include it only where its needed
1852    o move balancing of fluxes before the call of external_forcing_surf
1853    o seaice:
1854      - correct units of turning angles (now they are really in degrees)
1855      - move computation of GWATX/Y out of main routine into dynsolver
1856      - initialize GWATX/Y in seaice_init
1857    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1858      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1859    o seaice: add runtime flags for turning angles (default to zero)
1860    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1861      and trend from exf forcing and ctrl control adjustments
1862    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1863      (since checkpoint57x_post)
1864    o change the default rotation period to 86164.s = the Earth rotation
1865    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1866      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1867    o seaice advection: add code for choosing between the default (2nd order
1868      central differences) and multiDim advection schemes provided by
1869      pkg/generic_advdiff
1870    o seaice:
1871      - removed all references to SEAICE_GRID.h fields from
1872        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1873        (cubed-sphere configuration will change a little)
1874      - grid computations in seaice_init are obsolete now.
1875      - cleaned up code a little so that is easier to read (hopefully).
1876      - added new (better?) discretizations of default advection and diffusion
1877        (turn on with SEAICEuseFluxForm)
1878      - replace 1 in 3d global fields by kSurface in growth.F
1879      
1880    checkpoint58a_post
1881    o seaice:
1882      - bug fix in advect.F
1883    o shelfice:
1884      - separate shelfice load anomaly from pload (breaks with time
1885        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1886        Its default is 0., but it may be computed more cleverly from (unknown)
1887        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1888        done offline. A good approximation of the pressure load anomaly is
1889        necessary to avoid large initial adjustment processes underneath
1890        deep-reaching shelfice.
1891      - small fix in ISOMIP shelfice_thermodynamics
1892      - add more sophisticated thermodynamics of Hellmer (1989), this is
1893        now the default
1894      - give a few constants more intuitive names
1895    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1896      if bulk formulae are used in long integration (especially EmPmR). Turn
1897      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1898      if balancePrintMean, the imbalance that is substracted is printed to
1899      STDOUT.
1900    o fix bug (typo) in obcs_apply_eta.F
1901    o add a new package shelfice which enables us to model the circulation
1902      underneath shelf-ice with draughts of hundreds of meters.
1903     - works
1904     - to do: + include improved thermodynamics
1905              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1906                instead of new field kTopC
1907              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1908                instead of new field R_shelfIce and new code in ini_depth.F
1909                and ini_mask_etc.F?
1910              + adjust vertical mixing schemes?
1911    o seaice pkg:
1912     - add a cpp-flag to include a simple formula for a salinity dependent
1913       freezing point of sea water at the surface
1914     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1915       meridional stresses are now different (and hopefully correct)
1916    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1917       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1918       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1919    o pkg/diagnostics: add options and parameters for regional-statistics
1920       diagnostics ; define regions by reading a region-mask from a file
1921       (might add other options later)
1922    o pkg/bulk_force:
1923     - add option and parameters to use AIM surface-flux formulae.
1924     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1925       others forcing fields (defined in PARM05, parameter file "data") are loaded
1926       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1927     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1928     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1929     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1930       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1931     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1932    
1933    checkpoint58
1934    o add "--embed-source" option to genmake2 which, when the supporting
1935      tools can be compiled (as determined by genmake2) will turn on the
1936      embed_files package which then embeds the entire MITgcm source code
1937      (*.[fFhc] + Makefile) used for the build within the executable
1938      - requested by CNH but off by default
1939      - adds a paltry <9MB to the mitgcmuv executable in most cases
1940      - only writes the output when useEMBEDSRC in eedata is true
1941    o clean up 3-dim. relaxation codes:
1942      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1943      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1944      * Thanks to Tom Haine for testing!
1945    
1946    checkpoint57z_post
1947    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1948      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1949    o fix the pickup behavior for obcs in combination with ptracers
1950    o fix a bug in ptracers_external_fields_load
1951    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1952      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1953    o transfered surface NH pressure to eta field (if exactConserv).
1954    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1955         and update lab_sea output.txt file.
1956    o completing 3-dim. relaxation code: additional term
1957         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1958      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1959      * At compile time, in "EXF_OPTIONS.h" set
1960          #define  ALLOW_CLIMTEMP_RELAXATION
1961          #define  ALLOW_CLIMSALT_RELAXATION
1962      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1963          tauThetaClimRelax3Dim = 15552000.0,
1964          tauSaltClimRelax3Dim  = 15552000.0,
1965      * 3 cases:
1966          1) Use a constant-in-time 3-dim. field
1967          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1968          3) Real-time relax. to time-evolving prescribed field
1969    o Adding Laplacian-type smoothness constraint on
1970      initial and boundary (forcing) controls (ic, bc)
1971      * enable at compile-time via
1972        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1973      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1974      * Absolute scale somewhat unclear so far
1975      * no area weighting was included since no other cost term does so far
1976    
1977    checkpoint57y_post
1978    First step for a NLFS adjoint
1979    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1980    o new init. routines for calc_r_star, calc_surf_dr
1981    o still need to deal with ini_masks_etc
1982    o testreport seemed happy
1983    checkpoint57y_pre
1984    
1985    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1986    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1987    o add new offset feature to offline pkg (plus minor cleanup)
1988    o cfc fixes for final year of integration
1989    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1990      be in GCHEM_OPTIONS).
1991    
1992    checkpoint57x_post
1993    o fix testreport Pb in multiple test experiment.
1994    o cleanup our namelist syntax in verification:
1995      - make it more F95 standards compliant (some work still needed)
1996      - allows the vast majority of our tests to work with gfortran
1997    o Non-Hydrostatic:
1998     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1999     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
2000    o Allow to apply AB on T,S rather than on AB(gT,gS):
2001     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
2002     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
2003       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2004     - need a "clever" read_pickup to restart from the other AB formulation
2005    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2006    o remove some unused variables (reduces number of compiler warnings)
2007    o adjoint
2008      * Disable useVariableViscosity for adjoint for time being
2009        (there are a number of extensive recomputations)
2010      * Initialize certain variables needed for adjoint
2011    
2012    checkpoint57w_post
2013    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2014                 fix the singleCpuIO RS version of MDSWRITEFIELD
2015       and add a WARNING if using globalFiles=T with multi-processors.
2016    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2017      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2018    o tracer advection scheme:
2019      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2020       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2021       was not very convenient).
2022      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2023       (further tests needed for the implicit DST & Flux-Limiter schemes).
2024    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2025      and sRef for convenience, handy, when you want to initialize
2026      ptracers in a large domain with a constant non-zero value. Also,
2027      untangle ptracers_init.F a little.
2028    
2029    checkpoint57v_post
2030    o change dome exp. to use variable viscosity in side-drag terms.
2031    o remove all the files from the cfc_offline test since they are now
2032      incorporated into tutorial_cfc_offline which has been producing
2033      identical results for a few days of testing
2034    o add new parameter: sideDragFactor to enable half-slip-side BC
2035      and change side-drag S/R to use viscosity from mom_calc_visc
2036      (can switch back by setting sideDragFactor=0.); affects results at
2037      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2038       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2039    o vorticity & strain are now computed without masking, to account for
2040      no-slip-side BC in variable viscosity calculation ; mask is applied
2041      anyway later on, before computing advection/coriolis terms.
2042    o modify exp4 to test new obcs support for reading from external files
2043      and for passive tracers
2044    o fix behavior of ptracers_monitor when monitor output is written to a
2045      netcdf-file; still not independent of monitor.F (writes in the same
2046      file).
2047    o change default value of tRef (put a uniform, meaningful value for ocean
2048      & atmos) and initialize sRef (was missing, as Martin mentioned).
2049    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2050      to be proportional to enstrophy dissipation length.  Thus,
2051       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2052      This is now consistent with Smagorinsky and with the manual.
2053    
2054    checkpoint57u_post
2055    o OBCS and PTRACERS: add open boundary support for passive tracers
2056      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2057        OB-values from file; this is not different from the way theta and salinity
2058        are treated
2059      - however, Orlanski-radiation conditions are not supported, and the model
2060        will stop if you use pTracers and Orlanski at the same time.
2061      - beefed up the rountine obcs_external_fields_load: now only those open
2062        boundary values are overwritten with values from files for which there
2063        are really files, otherwise the OB-fields remain untouched. This makes
2064        it possible to use different OBs at different ends of the domain (as
2065        with EXF)
2066    o reduce number of exch calls in shap_filt (s2).
2067    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2068      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2069    
2070    checkpoint57t_post
2071    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2072    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2073      same truncation, independent of the face number: affects affects several
2074      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2075    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2076      note that biharmonic viscosity + no-slip was not tested in any experiment.
2077    o fix bug in non-linear free-surf side-drag ; generate new output for
2078      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2079    o make mnc honor the writeBinaryPrec flag for most kinds of output
2080    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2081    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2082      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2083    o add brackets in multi-terms sum to get same truncation, independent of
2084      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2085      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2086    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2087      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2088      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2089      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2090      Suggested values of viscosity parameters found in mom_calc_visc.
2091      Many new viscosity diagnostics available.
2092    
2093    checkpoint57s_post
2094    o Add clearing-house for viscosity calculations, mom_calc_visc and
2095      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2096      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2097      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2098      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2099      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2100      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2101      ViscAhStrain and viscAhTension are now retired.
2102    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2103    o In response to JMC's bug report, genmake2 now ignores any soft-links
2104      that it finds in the *current* directory when searching for files.
2105      Soft-links found in any other source directories will still work as
2106      they did before.
2107    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2108      a C routine to unlimit the stack size
2109    o mnc-ify pkg/aim snapshot vars
2110    o mnc-ify pkg/land as requested by Daniel
2111    o various changes to mnc including:
2112      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2113      - output can now be grouped so that all files within a group
2114          change the ITER portion of their names in lock-step together
2115      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2116          and works with both EXCH1 and EXCH2 (but needs more testing)
2117      - writing works for all verification test cases w/ g77 on Linux
2118    
2119    checkpoint57r_post
2120    o make MNC variable initialization happen earlier
2121    o add diagnostics for (almost) each term of the momentum Eq.
2122    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2123    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2124    o remove MINIMAL_TAVE_OUTPUT option ;
2125      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2126    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2127      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2128    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2129    o add time-dependent SST, SSS control
2130    o cost terms in ecco/ modularized (new cost_generic.F)
2131    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2132    o new infrastructure for seaice model vs. obs misfits in seaice/
2133      * driver from the_main_loop.F is seaice_cost_driver.F
2134      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2135      * gradient check in Exp. 6a of natl_box_adjoint/
2136    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2137      (see README file)
2138    
2139    checkpoint57q_post
2140    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2141    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2142      - bug was reported by Jean-Michel and Ian Fenty
2143    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2144      update exp. cpl_aim+ocn output.
2145    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2146      Needed for high-res. runs with large global files
2147      to be able to limit tapelev size
2148    o Changed some tests for adjoint:
2149      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2150      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2151      * global_ocean.90x40x15/ back to default 3-level checkpointing
2152    o Modifications to enable scripted COMMON to MODULE conversion
2153      * verification/OpenAD/code/ has necessary scripts and description;
2154      * converts, compiles and runs successfully;
2155    
2156    checkpoint57p_post
2157    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2158    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2159      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2160    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2161    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2162      (was already the case for dissipation with mom_vecinv,
2163       and also the case for grad.PhiHyd when staggered-timeStep)
2164      This will allow to put dissipation out-off the AB time-stepping.
2165     Unfortunately, affects truncation error. Update output of exp. that "fails"
2166      (cg2d matching number) and leave the others for later: front_relax(10),
2167      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2168      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2169    
2170    checkpoint57o_post
2171    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2172      (2) its ready to be documented during the 20050801 DocFest
2173    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2174      for ideal_2D_oce and lab_sea on linux_ia32_g77
2175    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2176      in global1x1_tot/code_seaice_adj to access indices 32, 33
2177      (worth another tag)
2178    
2179    checkpoint57n_post
2180    o adding precip control xx_precip 32
2181    o adding swflux control xx_swflux 33
2182    o Replacing 10 forcing penalty cost routines by 1 generic.
2183    o Implementing partitioning in time-mean and variable adjustment
2184      for atmos. state.
2185    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2186    o in natl_box_adjoint:
2187      * updated exp 1 to 10
2188        (but does not have time-mean vs. variable split results yet)
2189    o updated global1x1/*_seaice_adj/
2190      to incorporate latest changes
2191    o enable useSingleCpuIO for mdsio vector routines
2192      (applies in particular to tapelev I/O)
2193    o removed inefficient K-loop in all active_file*control*.F
2194    
2195    checkpoint57m_post
2196    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2197      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2198    o pkg/exch2: filling of face-corner halo regions is optional
2199      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2200    
2201    checkpoint57l_post
2202     tag before updating tutorials (pre-release-2)
2203    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2204       for output and interpolation of input fields onto model grid)
2205    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2206       Affects results of exp. rotating_tank ; update output.txt.
2207    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2208          and taking the square quantity and/or using a fraction-weight field.
2209    o fix aim_diagnostics_init.F mate numbers.
2210    o add mnc output capability to diagnostics/diagstat and update
2211      our cvsignore files for the ACSII output generated
2212    
2213    checkpoint57k_post
2214    o lab_sea now uses diagnostics package and provides a suite of
2215      new EXF diagnostics output.
2216    
2217    checkpoint57j_post
2218    o exf
2219      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2220        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2221        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2222      * extended diagnostics output
2223        - now includes all EXF variables
2224        - hs, hl moved to common block
2225        - separate S/R for diagnostics, called after ctrl vector is added
2226        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2227        - EXFqnet contains true Qnet (i.e. includes qsw)
2228      * updated verif. lab_sea, global_with_exf
2229      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2230        to ensure that diagnostics sees a true EXFqnet
2231    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2232    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2233      several times with different frequencies.
2234    o mnc-ify the thsice package as requested by Daniel Enderton
2235      - the monitor--MNC output needs work
2236      - many attributes need to be added (most are currently blank)
2237    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2238      - many attributes need to be added (most are currently blank)
2239    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2240    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2241    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2242      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2243         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2244    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2245     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2246    
2247    checkpoint57i_post
2248    o Diagnostics package was changed: diagnostic allocation is now deactivated
2249      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2250    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2251      add 1rst Order upwind vertical Shear.
2252    o add a quick fix for A/B checkpointing in OFFLINE mode
2253    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2254      end-run around the C/Fortran linking horror in eesup/src/timers.F
2255    o added pkg/runclock: allows user to terminate run based on wall clock
2256    o added non-hydrostatic scaling parameter: nh_am2
2257    o pkg/my82: futile attempt to make results compiler-independent by adding
2258      some "_d 0", etc. no effect.
2259    o for mnc output, fill the 'T' coordinate var with myTime and create a
2260      separate 'iter' variable for iteration count
2261    o pkg/diagnostics:
2262      add new capability: output of Global/Regional & per-level statistics ;
2263      tested against monitor output (including land & thSIce) on various exp.
2264    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2265    
2266    checkpoint57h_done
2267      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2268      data.diagnostics, data.gchem, data.ptracers) is done.
2269    
2270    o pkg/diagnostics: prepare for Global/Regional statistics.
2271      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2272    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2273      and rename it: DIFFERENT_MULTIPLE
2274    
2275    checkpoint57h_post
2276    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2277    o pkg/diagnostics: change output frequency, now in seconds (instead
2278      of Nb of iterations). This requires to change data.diagnostics.
2279    checkpoint57h_pre
2280    
2281    o in mnc, let the user create the output dir if both mnc_outdir_date
2282      and mnc_outdir_num are false
2283    o add fflags() to pkg/diagnostics which allows one to specify, on a
2284      per-file basis, the file precision [default behavior is unchanged]
2285    o added diagnostics to pkg/kpp, including computation of mixed layer
2286      depth based on a temperature/density criterion
2287    o updated verification/natl_box to test the new pkg/kpp diagnostics
2288    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2289    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2290    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2291      not mnc -- this mistake was found by JMC and is now corrected
2292    
2293    checkpoint57g_post
2294    o add Adams-Bashforth 3rd Order time stepping:
2295      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2296      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2297    checkpoint57g_pre
2298    
2299    o make lambda[Theta,Salt]ClimRelax spatially varying
2300      (default remains spatially uniform constant based on tau)
2301    o added new control variables
2302      * init. uVel, vVel, etanN
2303      * lambda[Theta,Salt]ClimRelax
2304    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2305      (suggested by G. Forget)
2306    
2307    checkpoint57f_post
2308    o add parameter "baseTime" = model base time = time at iteration zero
2309      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2310      account for baseTime shift
2311    o move Coriolis arrays from PARAMS.h to GRID.h
2312    checkpoint57f_pre
2313    
2314    o mnc-ifying the seaice package
2315    o introduced an alternative length scale calculation for use in the limiting
2316      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2317    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2318    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2319      as well as grad(vort3).  Made it compatible with both approximate form
2320      for the cubed sphere and full form of these gradients.  Added flag
2321      useFullLeith to select between approximate and full form.  
2322    o add "d0" in getcon.F to reduce differences between compilers/platforms
2323      update output.txt of exp. fizhi-gridalt-hs
2324    o change port_rand funtion to allow to set the seed.
2325    o fix obscure MNC bug involving conversion between reals and integers
2326      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2327        new version is now more standards-compliant
2328    o adjoint-related modifications
2329      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2330      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2331      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2332    
2333    checkpoint57e_post
2334    o Adding eddy stress controls a la Ferreira et al.
2335    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2336    
2337    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2338      update output.txt of exp. fizhi-gridalt-hs
2339    o add more "Z" dimensions and associated coordinate vars to MNC
2340    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2341    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2342      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2343      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2344      months and years.  Requires pkg/cal.
2345    o diagnostics: add pickup functionality
2346      - off by default for backwards compatibility
2347      - current version only uses MDSIO -- MNC will be added
2348    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2349    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2350    
2351    checkpoint57d_post
2352    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2353    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2354      output from the diagnostics package
2355    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2356    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2357      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2358    o add coordinate variables to the MNC output from the diagnostics package
2359    o change MNC-flags default value: true when useMNC=TRUE
2360    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2361      the ability (off by default) to read the grid information using MNC
2362    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2363    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2364    o do snap-shot diagnostics at the middle of the time-interval (instead of
2365      at the end).
2366    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2367      new test for AIM with thSIce + slab-ocean
2368    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2369    o move state variable diagnostics to the beginning of the time step ;
2370      (note: still needs some work specially for snap-shot diagnostics)
2371      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2372    
2373    checkpoint57c_post
2374    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2375    o generate new output.txt files on faulks with g77 & the new -ieee option
2376    checkpoint57c_pre
2377    
2378    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2379      update output.txt of exp. global_ocean.90x40x15
2380    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2381      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2382    o add saltFlux(+File) forcing capability with periodicExternalForcing
2383    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2384    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2385    o improvements for the MNC output from DIAGNOSTICS:
2386      - correct handling of the unlimitied dimension
2387      - all dims now have associated coordinate variables
2388      - variables located at U, V, and Corner ("Z") points are now written
2389        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2390        *all* data points are output
2391    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2392    o added pkg/seaice/seaice_monitor.F
2393    o mdsio_readfield.F can now read files visible only to master MPI process.
2394    o pkg/seaice: some test code for ice-modified ocean stress
2395    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2396      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2397      spurious negative numbers for precipitation and humidity.  Will cause
2398      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2399    o pkg/ctrl/
2400      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2401        May be enabled via doPackDiag
2402      *  introduce z-scaling of
2403         + gradient (doZscalePack) and
2404         + control (doZscaleUnpack)
2405    o pkg/mdsio/
2406      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2407      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2408    
2409    checkpoint57b_post
2410    o simplify options in diagnostics_fill arguments (remove weird combinations)
2411    o fix MNC coordinate variables so that they now contain per-face index
2412      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2413      general, EXCH2 grids are only aligned to a "local" coordinate system
2414    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2415    o Implement instantaneous output within pkg diagnostics:
2416      setting a negative frequency in data.diagnostics produces
2417     "snap-shot" output (as opposed to time-average if freq > 0)
2418    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2419      NOTE: change ptracer diagnostics name: use 2 characters to work with
2420            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2421    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2422      becomes the coordinate variable for the 'T' dimension
2423    o add CF-style coordinate variables to MNC
2424      - just a first cut:  numbers are meaningless on the cubesphere and
2425        missing along the T axis but otherwise it works!
2426    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2427    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2428    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2429      this is based directly on what the model compute, so that the content of
2430      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2431    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2432    o clean up build options files for SunOS, in particular
2433      - remove -traditional from xmakedepend
2434      - change -xarch=v9 to -xarch=native for f77
2435      - restore use of make (not gmake)
2436      - add CC=gcc if using g77
2437    o changes per discussion of AM, JMC, & EH3 today:
2438      - move redundant "grid" variables out of "state" -- in preparation of
2439        creating proper CF-style coordinate variables and in recognition
2440        that any/all grid variables can be easily copied (eg. w/NCO) from
2441        the grid files into any of the other NetCDF files
2442      - *always* output grid variables with MDSIO (this will eventually be
2443        changed)
2444      - output MNC grid file if useMNC is true
2445    o every instance of _END_MASTER() has been found and replaced with
2446      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2447      preprocessors
2448    o re-arrange diagnostics pkg initialisation:
2449     - allow each package to extend the available diagnostics list
2450     - add some checking and fix small problems (multi-threaded, ...)
2451     - new S/R diagnostics_fill (replace fill_diagnostics):
2452       look through the short list of active diag. (instead of the long list)
2453       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2454    
2455    checkpoint57a_post
2456    o this set of changes restores TAMC compatibility
2457      tested for global_ocean.90x40x15 adjoint on trough
2458      (what a pain)
2459    
2460    checkpoint57a_pre
2461    o some modifs in tools/build_options for sunos
2462    o call ctrl_pack for ctrl at end for optimcycle=0
2463    
2464    checkpoint57
2465    o add horizontal bi-harmonic viscosity for vertical velocity
2466      - new parameter viscA4W (defaults to viscA4)
2467      - affects only non-hydrostatic code
2468      - to be done: no-slip lateral boundary conditions
2469    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2470    o implement Implicit Vertical advection for pTracers
2471    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2472      (implemented also for implicit vertical diffusion & advection)
2473    o OBCS: extend application of tracer open boundary conditions
2474      to a strip beyond the boundary of width Olx/Oly
2475    o add call monitor to TAF set of required calls (flow directives)
2476      and include in natl_box_adjoint
2477    o untangle a few ifdefs related to cost, ctrl, autodiff
2478      untangel a few ALLOW_ECCO_OPTIMIZATION
2479    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2480      (theta2, salt2 in ecco_cost_weights)
2481    
2482    checkpoint56c_post
2483    o OBCS as control variables
2484      - update ctrl_ad_diff.list, obcs_ad_diff.list
2485      - remove balance of obcs controls from default
2486      - fix index bug nobcs in ctrl_init
2487      - fix dummy fields filen in ctrl_pack
2488      - add dummy weights for obcs
2489    o lsopt: comment out fort.94 output
2490    o optim:
2491      - remove unnecessary header files
2492      - adjusted namelists
2493      - add xerbla.F to Makefile
2494    o exf:
2495      - multiple modifications of exf_check_range
2496      - unit change in exf_init_runoff from [m/year] to [m/s]
2497    o mdsio:
2498      - i/o-vector change debugLevel from debLevA to debLevB
2499    
2500    checkpoint56b_post
2501    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2502      is called from DO_THE_MODEL_IO
2503      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2504      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2505      - clean up PTRACERS_WRITE_TIMEAVE a little
2506    o add another verification experiment that tests both the cfc-pkg and
2507      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2508      reactive tendencies treated inline with regular timestepping
2509  o testreport previously did a lousy job of comparing small numbers, so  o testreport previously did a lousy job of comparing small numbers, so
2510    we (Ed and Martin) changed the  way the cut-off of 1.e-12 is    we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2511    implemented in the little c-progam tmp_cmpnum.c which is embedded in    implemented in the little c-progam tmp_cmpnum.c which is embedded in
# Line 270  o add two new packages Line 2773  o add two new packages
2773    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2774    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2775      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2776      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2777  o add offline package  o add offline package
2778  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2779    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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