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revision 1.595 by heimbach, Thu Dec 22 21:16:17 2005 UTC revision 1.1177 by jmc, Wed Oct 14 19:56:18 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/ptracers:
8      apply zonal filter (if used) to all passive tracers
9    
10    checkpoint61w
11    o adjoint:
12      * update and finish work on adjoint of dic package (G. Forget)
13      * start adjoint of offline package
14      * bug fix for cube-sphere TLM code (active_file_g.F)
15    o tutorial_global_oce_optim:
16      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
17      and add SIZE.h_mpi for MPI testing
18    o pkg autodiff
19     - fix bug in autodiff_restore
20     - make genmake2 remove comments and empty lines from ad_input_code.f in
21       order to reduce file size (new script file remove_comments_sed)
22    o allows to specify vertical profile of vertical viscosity (viscArNr)
23    o pkg autodiff
24      autodiff_ini_model_io: comment out writing of grid information to netcdf
25      files, because at this time the grid fields are a bunch of zeros
26      (this is analogous to ini_mnc_vars.F)
27    o pkg seaice/autodiff:
28     left-over from removing the 3-time-level fields:
29     - small rearrangement of common blocks (SEAICE.h)
30     - fix field declaration in order to get meaningful output in
31       adseaice.*.nc (adcommon.h)
32    o pkg obcs:
33     - go through NH code only if nonHydrostatic=T
34     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
35     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
36       => Update output of experiment seaice_obcs
37     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
38     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
39     - fix restart for useOBCSprescribe + useEXF
40    o pkg ctrl
41     - make obcs as control parameter work also with useSingleCPUio
42     - replace a few sny and snx by Ny and Nx to be consistent with
43       ctrl_set_globfld_x/yz.F
44    o pkg seaice
45     - re-introduce global field frWtrAtm for the case of
46       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
47     - catch the case of an empty filename in seaice_cost_init_fixed.F
48    o pkg ecco:
49     - small bug fixes in the_main_loop
50      . fix order of monitor arguments
51      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
52      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
53        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
54     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
55       imbalance diagnostics for wmean_h/sflux = 0
56     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
57     - catch the case of empty filenames in ecco_cost_init_fixed.F
58       and ecco_readparms.F
59     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
60       to make this statement meaningfull in ecco_cost_weights.F
61    o pkg zonal_filt:
62      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
63      - when using rStar, filter uVel*hFacW instead of uVel
64       (tested without topography: fix a Pb of growing instability with NLFS)
65    o pkg/aim/thsice:
66     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
67      (works as SST restoring)
68    o pkg/thsice:
69     -add specific parameter for salt restoring in slab mixed-layer
70       (by default equal to the temperature restoring)
71    
72    checkpoint61v
73    o pkg/kpp:
74     -add double diffusive contributions as a hack, turned off by default
75      for now, and the code can be excluded with a CPP-flag
76      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
77     -add a verification experiments to "vermix" to test this code
78    o pkg/mom_common:
79      Move computation of length scales to mom_init_fixed.F (avoid recomputation
80      at each time-steps*levels).
81    o pkg/layers:
82      Created a new package for computing volume fluxes in temperature or
83      [not yet implemented] density layers, e.g. for calculating residual
84      overturning circulations.
85    o pkg/diagnostics:
86      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
87    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
88    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
89      To avoid mixing type (RS/RL) of input/output array argument,
90      replace single mixed-type array with a pair from each type (RS/RL).
91    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
92      is now implemented for all pkgs (previously only done for the main pickup)
93    
94    checkpoint61u
95    o pkg/obcs:
96      - change OB?eta from _RS to _RL and put them into a separate commen block
97      - add code to read OB?eta from a file via obcs_prescribe_read: the code
98        compiles and does not destroy any other experiments, the data is read
99        properly, but the code is not tested in actual applications
100    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
101      create a meaningful unit attribute for the time coordinate variable
102    o pkg/ebm: add plenty of missing "_d 0" ;
103       update results of experiment global_ocean_ebm (fwd + adjoint tests)
104      Notes: several pieces of code only works for (very) specific set up
105       (domain size, lat range, etc ...); should be documented & stop if one
106       of those assumptions is not meet.
107    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
108       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
109          and offline_exf_seaice (seaicetd + adjoint).
110    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
111       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
112        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
113    o few changes to pass when compiling with strick checking of arguments
114       across S/R (allow to find few bugs in S/R calls).
115    o pkg/seaice:
116     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
117       2d-fields, for slightly better performance
118    
119    checkpoint61t
120    o pkg/seaice:
121     - remove unused variables in seaice_evp
122     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
123    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
124       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
125       each processor opens a different file (a fix from Matt).
126    o cg2d:
127       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
128       this reduces number of EXCH calls by 2 when using exch2.
129       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
130       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
131    o pkg/thsice:
132       add code for Near Infra-Red albedo (from Jeff)
133       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
134    o ini_model_io:
135       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
136       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
137       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
138    
139    checkpoint61s
140    o pkg/exch2 (exch2_rxN_cube*):
141       remove last BARRIER (no need to synchronise after getting data from shared
142       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
143    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
144      and generate new output (for the 2 tests) using default rotationPeriod.
145    o pkg/exch2:
146      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
147        (was already the case with AUTODIFF_EXCH2 defined)
148      - add bj in exch2 arrays and S/R.
149      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
150        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
151    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
152      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
153        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
154      - verification experiment natl_box.longstep
155    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
156      allow different versions of ifort (8 or 9) and different versions
157       of mpi (mpich or mpich2) to be used with the same optfile.
158      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
159       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
160    o pkg/seaice:
161      fix previous modif (3-level field removed) for old-pickup reading
162    
163    checkpoint61r
164    o pkg/seaice:
165     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
166      1. introduce fields for time step (N-1)
167      2. do not use levels 2 and 3 anymore (but keep them)
168      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
169         includes changes to pkg/thsice/thsice_get_velocity.F,
170         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
171         pkg/obcs/obcs_apply_uvice.F.
172     - completely remove code for leap-frog time stepping for second order
173       advection
174     - adjusted adjoint accordingly;
175       gradient checks have improved by an order of magnitude!
176    
177    checkpoint61q
178    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
179     - the boundary conditions along open boundaries are unclear, because the
180       associated masks are set to zero and are thus treated as closed when
181       applying the slip-boundary conditions.
182     - move initialisation of grid variables from seaice_init_varia to _fixed
183    o adding doc/diags_changes.txt
184    o model/src:
185      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
186       to avoid "_diags" naming if no relation to pkg/diagnostics.
187      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
188       file and only call PLOT_FIELD_XYZ if debugMode=T.
189      remove few PLOT_FIELD_XY calls outside initialisation.
190      remove few unnecessary BARRIER.
191    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
192      of salt_plume package in Southern Ocean
193    o pkg/thsice:
194     - fix hOceMxL in overlap (needed for sea-ice advection);
195       update output of experiment global_ocean.cs32x15.icedyn.
196    o pkg/seaice:
197     - make the (placeholder-)tracer IceAge a little more meaningful
198      by avoiding ridging of age due to convergent ice flow
199     - add diagnostics for surface temperature, atmospheric and oceanic
200       heat flux, and atmospheric and oceanic ice growth
201    
202    checkpoint61p
203    o eesupp (global_max & global_sum):
204     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
205     - remove starting & endding barrier (no longer needed)
206    o pkg/mdsio, writelocal:
207       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
208       (remove the STOP): uses shared buffer IO to store data from all threads
209       and then let master-thread write nThreads tiles.
210    o pkg/mdsio (read/write field):
211     - tiled IO done in 1 piece (all levels at a time);
212     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
213     - multi-threaded: allow to read/write local (non-shared) array
214       (was already working with singleCpuIO ; now works also without);
215       => no longer needs barrier call after reading a file (added inside
216       mds_read/write field).
217     - move barrier calls outside gather/scatter_2d to mds_read/write_field
218    o pkg/obcs/exf
219      - exf_getffieldrec.F: add a few ". _d 0" and
220                            add code to catch the case fldperiod = 0.  
221      - obcs_precribe_read.F: change if statements so that they match
222                              the variable type (_RL)
223      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
224        exf_iprec) as part of namelist EXF_NML_01
225    o pkg/mdsio:
226      - read/write tiled (local) files: read/write 1-level tile chunk at a time
227        (instead of segment of length sNx); expected to speed up tiled IO.
228    o pkg/exch2:
229      - take buffer copy from/to array out of S/R exch2_send/recv into new
230        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
231        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
232      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
233      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
234        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
235        including Topology header file (and common blocks).
236      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
237        remove 2nd exch call in exch2_s3d_rx (no longer needed).
238      - document S/R arg. list (+ update some comments)
239    o pkg/seaice:
240      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
241        temperature and humidity over sea ice based on climatological values.
242      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
243        of LSR (this change is expected to change the results slightly because now
244        it uses slightly difference moduli from the second last LSR solution, but
245        that is more consistent with the stress computations; this part of the code
246        is not tested in the verification experiments)
247      - fix diagnostics for flux of ice in case of B-grid
248      - turn strain rates eij and press into global fields within global
249        common block in SEAICE.h for more straighforward diagnostics
250      - fix diagnostics for principal stress components, press, zeta, eta
251        to give something meaning full
252    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
253      new output (all 4 tests) using default rotationPeriod.
254    o pkg KPP:
255      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
256      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
257        and normal grid from 1 to Nr)
258    o Fix computations of L4rdt in mom_calc_visc.F
259    o eesupp:
260      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
261      should be called before a "stop" if we know that all process are going
262      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
263    
264    checkpoint61o
265    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
266    o model/src/ini_curvilinear_grid.F:
267       compute angleSin/CosC when they are not read from a file
268    o pkg/seaice:
269       add pseudo time stepping for LSOR
270    o pkg/exch2:
271       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
272    o pkg/seaice:
273       Adding separate sea ice albedo, drag coefficients, and HO in Southern
274       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
275    o SingleCpuIO:
276       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
277    o pkg/seaice:
278       put exchanged variable in (local) common block for MPI+Multi-Threads
279       to work (necessary with exch1, and for now with exch2 too).
280    o verification: to get more experiments tested with mpi, mth and mpi+mth,
281      change tiling of:
282       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
283       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
284      update output of exp:
285       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
286       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
287      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
288                       (note: output.txt generated on faulks using only 1 tile)
289    o eesupp & mdsio (SingleCpuIO):
290     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
291       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
292       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
293     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
294     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
295       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
296    o pkg/exch2:
297     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
298       read parameter file "data.exch2" if it exists; otherwise try default regular
299       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
300     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
301       with new code (not to be used, just as a backup solution).
302     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
303       in utils/exch2/input.
304    
305    checkpoint61n
306    o eesupp & mdsio (SingleCpuIO):
307      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
308        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
309        receive real*4 array (instead of real*8) to read/write 32.bit files.
310        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
311         and remove new mapping S/R)
312    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
313      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
314        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
315        when using exch2. Add S/R to map global io-buffer to global model array.
316      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
317    
318    checkpoint61m
319    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
320      and add 3 other S/R for other types (R4,R8,RS).
321      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
322    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
323     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
324     - reduce number of macro definitions (keep only those which are used);
325       can always call directly the corrresponding S/R if needed.
326     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
327       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
328     Fixed wrong type of arg in:
329       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
330       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
331     To fix: global_sum of var in common block is wrong (multi-threaded) in:
332       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
333     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
334    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
335      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
336    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
337    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
338      edges are closed (zero depth); might happen with "blank tiles";
339      for now, disabled if using OBCS.
340    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
341      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
342    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
343      to reduce length of 1.D array print in STDOUT.
344    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
345      + use 48 tiles (16x8): this will allow to test "blank tiles".
346    o start to test MPI + multi-threaded (change testreport to skip tests
347      where number of tiles do not match).
348    o genmake2: add option "-omp" to turn on Open-MP ;
349      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
350    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
351      and keep the original tile numbering. Note: compatible with old
352      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
353    
354    checkpoint61l
355    o Overlaps had been forgotten in calculating ijk keys : fixed
356    o fix cyrus makedepend for gcc 4.4
357    o experiment fizhi-cs-aqualev20:
358      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
359      and generate new output. Note: new output is much closer to the old
360      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
361      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
362    o pkg/fizhi:
363     - change to avoid indices going deliberately over array-bounds
364     - remove unnecessary MPI stuff
365     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
366     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
367       does not go over array-bounds and therefore returns reliable output.
368     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
369       this S/R has 4 output arguments, which are used inside "get_alarm";
370       when it is called with the same variable "ndum" in place of several
371       output arguments, this produces weird side effect inside "get_alarm"
372      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
373       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
374       address) and produces error.
375    o tools/gemake2: (March 27-29 2009)
376      with option "-mpi": link *_mpi files from "MODS" dir (this is what
377      testreport does).
378    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
379    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
380       update lab_sea.lsr & lab_sea.salt_plume results
381    o pkg/seaice:
382      Major overhaul of the LSOR solver: change discretization from original
383      finite differences to finite volume. The old routine is still in the
384      file seaice_lsr.F and can be turned on with the CPP-flag
385      SEAICE_OLD_AND_BAD_DISCRETIZATION
386      Along with this change, the discretization of the strain rates is changed.
387      The same flag turns on the old discretization in seaice_calc_strainrates.F
388      All verification experiments with seaice are affected (except for
389      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
390      results by setting the above flag.
391      Further changes involve changes in defaults:
392      - ALLOW_FLOODING is defined and turned on by default
393      - SEAICEadvSnow = .true. is now the default
394      - SEAICEadvSalt = .true. is now the default
395      - SEAICEadvAge  = .true. is now the default
396      - SEAICE_clipVelocities  = .false. is now the default
397                                         (as per J. Zhang's recommendation)
398      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
399        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
400      - seaice_growth: replace computation of UG by a simple copy from wspeed
401    
402    checkpoint61k
403    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
404      seaice_lsr: fixed a few metric terms,
405                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
406                  add more debugging diagnostics
407      seaice_evp: removed superfluous many metric terms of FV discretization
408                  of stress divergence
409                  affects lab_sea, lab_sea.hb87
410      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
411                  of stress divergence for non-evp solver
412                  (this part is not tested anywhere)
413      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
414                  they were effectively only half slip
415                  affects lab_sea.hb87
416      updated all relevant verification experiments (except lab_sea//output_adm.txt
417        which was left over, but fails at level 7 & 6)
418    
419    checkpoint61j
420    o pkg/seaice: turn a few hard wired parameters into run time parameters
421    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
422      time in seconds as promised by the usints in seaice_monitor and exf_monitor
423    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
424      that are not cubed-sphere grids
425    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
426    o pkg/ctrl:
427      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
428    o non-hydrostatic (calc_gw.F):
429      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
430      update output of exp. global_ocean.cs32x15.viscA4
431    o remove backward compatibility for thetaMin,phiMin
432      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
433    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
434      interpolated wind field not only for curvilineargrid=.true., but also
435      for a rotated grid (rotateGrid=.true.)
436    o pkg/exf: add capability to bypass interpolation for runoff
437      by setting yet another CPP-flag
438    o eesupp/src, B-grid exchange:
439      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
440    o autodiff
441      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
442      allows to switch to single-prec common blocks;
443      corresponding switch occurs in tamc.h, integer isbyte
444      TAF store directivs "byte" and "kind" seem equivalent;
445      Most tamc.h have been updated correspondingly.
446    
447    checkpoint61i
448    o autodiff:
449      fix autodiff_sore/_restore indices for obcs
450      (spotted by I. Hoteit, M. Mazloff)
451    o pkg/autodiff, pkg/ctrl:
452      Add flag to reduce all tapelev I/O to single-prec.
453      In data.ctrl set
454        doSinglePrecTapelev = .TRUE.
455    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
456      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
457    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
458      real fresh water flux (not yet)
459    o pkg/mdsio & rw:
460     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
461     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
462    o pkg/flt:
463     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
464       init_fixed & ini_varia.
465     - clean-up & simplify linear interpolation S/R:
466       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
467     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
468     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
469     - add vert. coordinate & horiz. indices to output files.
470     - change vertical position in initial condition, from index to depth [m].
471     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
472       (easier to get to a curvilinear grid) ; delX,delY no longer used.
473    o pkg/ggl90: a few modifications:
474     - fix bottom boundary condition, and interpolation of KappaE
475       near top and bottom
476     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
477     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
478     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
479    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
480      (maintain temporary backward compatibility, until next checkpoint)
481    
482    checkpoint61h
483    o pkg/diagnostics with "periodic averaging diagnostics":
484      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
485    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
486    o pkg/obcs: fix loop ranges for balancing code
487    o pkg/flt:
488     - improve criteria for finding which tile owns a float.
489     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
490    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
491      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
492      with ocean biogeo)
493    o pkg/flt:
494     - do some cleaning and fix the restart ;
495     - add output.txt in flt_example/results to get this pkg tested.
496    o genmake2: add an EXTENDED_SRC option and flag.
497       for now, cannot be turned on on command line (only through genmake_local)
498    o pkg/mdsio: read/write vector:
499     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
500     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
501       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
502     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
503      (drop to 4 digits matching for grad). But this test does not look very
504      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
505    
506    checkpoint61g
507    o pkg/flt:
508      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
509       + make OPTIONS file more standard.
510      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
511      - fix _BYTESWAPIO CPP-Flag
512      - standard reading of file-parameter "data.flt"
513      - fix argument list of S/R FLT_RESTART
514      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
515    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
516    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
517      a still unfixed compiler/optimization bug
518    
519    checkpoint61f
520    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
521      update results of global_ocean.cs32x15.icedyn test.
522    o move getcon.F from model/src to pkg/fizhi.
523    o pkg/exf: add parameter for extrapolation of temp up to the surface
524       and option to prevent negative evap (in bulk_largeyeager04 only).
525    o Prather Advection scheme: fix tracer conservation for divergent flow
526      (e.g., when using NonLin Free-Surface).
527    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
528    o gmredi (Visbeck-variable-K):
529     - add more parameters to Visbeck-variable-K.
530     - use a 5 points average for dSigmaR in Visbeck-K calculation
531       (more "homogenous": same stencil and same weights as in dSigmaH)
532     - update output of ideal_2D_oce experiment.
533    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
534      (#undef REAL4_IS_SLOW)
535     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
536       coordinate variable
537     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
538       (surface forcing fields), removes some of the functionality
539     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
540     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
541       probably not all: copy _RS surface flux fields to RL field before
542       calling DIAGNOSTICS_FILL
543     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
544       real*4 (CALL EXCH_*_RS) versions.
545     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
546       (generate new output).
547    
548    checkpoint61e
549    o gmredi (Visbeck-variable-K):
550      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
551      - change computation of Visbeck-K where Slope > Smax :        
552        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
553        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
554    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
555      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
556    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
557    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
558      does not become too large (to avoid precision problems in implicit-diffusion
559      solver); update ideal_2D_oce output.
560    o pkg ggl90:
561      - in ggl90_cal.F: compute only one set of visc/diff, used to
562        step forward TKE/T/S/momentum
563      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
564        have Prandlt =1)
565    o gmredi (fm07):
566      - add lower limit on Transition layer thickness + lower limit on 1/lambda
567      - allow to set few more params from data.gmredi
568    o pkg ggl90:
569          - add missing sqrt(2) factor in computation of mixing length
570            scale in ggl90_calc.F
571            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
572    
573    checkpoint61d
574    o adjoint modifs
575      - adapt to new field rhoInSitu
576      - allow to revert from StoreDynVars2D, StoreDynVars3D
577        to individual fields
578        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
579    o store 3-D (in-situ) density in commom block (DYNVARS.h)
580     - save 1 rho computation.
581     - no longer modify T & S inland when using down_slope pkg.
582    o gad_som : allow to switch to SOM advection for T & S without corresponding
583      pickup files (using new S/R: MDS_CHECK4FILE).
584    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
585      (for useSingleCpuIO to work in multi-threaded)
586    o pkg/shelfice:
587     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
588       with SHELFICEtopoFile in data.shelfice
589     - move code for reading ice shelf topography and modifying hFacC into separate
590       subroutines of the shelfice package
591     - separate initialisation of "fixed" and "variable" variables
592     - kTopC is not (yet) replaced by kSurfC, although this is possible
593    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
594    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
595      and rename:
596      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
597      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
598    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
599    
600    checkpoint61c
601    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
602      to add mass source/sink of fluid in the interior (3-D generalisation
603      of oceanic real-fresh water flux).
604    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
605    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
606    o new pkg: down_slope
607      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
608      - presently, modify T & S inland (dwnslp_calc_rho.F).
609        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
610      - implementation for ocean in P-coords not tested.
611      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
612    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
613      (to facilitate conversion of oceanic pkg to p-coordinate).
614    o change FIND_RHO to FIND_RHO_2D :
615      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
616    o new pkg: cheapaml
617    
618    checkpoint61b
619    o exch2:
620      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
621      - no longer depend on the order sequence (N,S,E,W).
622      - 3rd exchange no longer needed (tested with 24 tiles).
623      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
624      - exch_UV_A-grid readily available (but not yet tested).
625      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
626      (both are no longer needed) in exch_uv: no effect in forward run; but
627       get truncation error differences with adjoint exch.
628    o exch2:
629     - change index-bounds storage (moved from target to local tile,
630       more intuitive this way) ; rename/remove some variables.
631     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
632    
633    checkpoint61a
634    o exch2/matlab-topology-generator:
635      fix bug in index bounds for N-S internal exchange (hard to tell if this
636      had any effect on the solution).
637    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
638      is exceeded
639    o testreport: modify syntax of awk, so that it works also with
640      awk, and not only with nawk and gawk
641    
642    checkpoint61
643    o autodiff
644      Change default for TAF usage by removing argument '-nonew_arg'
645      This changes TAF subroutine argument list (ordering of active var.)
646      Omission of this flag leads to incompatibility w.r.t. TAMC
647      To restore TAMC-compatibility, need following modifs:
648      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
649      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
650      Tested TAF version is 1.9.22
651      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
652    
653    checkpoint60
654    --->>> This is the last checkpoint for which generating the adjoint
655    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
656    --->>> by default.
657    --->>> Future checkpoints will ommit this flag by default.
658    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
659    o pkg/grdchk: Add gradient check to etan0 perturbations.
660    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
661    o pkg/autodiff: more flexibility in zeroadj.
662      model/src: modifying do_oceanic_phys.F accordingly.
663    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
664    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
665      special setup of gmredi for which the adjoint is stable
666      enough for parameter optimization.
667    o bridging the gap between eddy stress and GM.
668      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
669          along with a change in CPP option (now ALLOW_EDDYPSI).
670      -> when using GM w/ GM_AdvForm:
671          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
672          is applied either in the tracer Eq. or in momentum Eq.
673          depending on data.gmredi (intro. GM_InMomAsStress).
674      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
675      The key modifications are in model/src/taueddy_external_forcing.F
676      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
677    
678    checkpoint59r
679    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
680      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
681      fix option to read coriolis(@ cell-corner) from files with CS-grid.
682    o pkg/mnc: add some attributes to standard 1D-coordinate variables
683    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
684      mass points, when using mnc for output
685      - add runtime parameter (missing_value, missing_value_int) to override
686        default (which is the value of getcon('UNDEF'))
687    o pkg/mnc: prepare mnc for the actual use of missing values with the
688      diagnostics package: small fix in mnc_cw_readwrite.template and more
689      initialisation of never used fields
690      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
691      versions
692    o pkg/thsice/thsice_ini_vars.F added default initial values so that
693      thermodynamics sea ice solver does not blow up when some initial fields
694      are missing.
695    o move from external_forcing_surf.F to ini_forcing.F
696      the p-coord. hack consisting in using pLoad to set phi0surf ;
697      update output of tutorial_global_oce_in_p (affected @ truncation level).
698    o Freshen up a bit hs94.1x64x5, notably:
699      remove rotationPeriod and tRef=5*0. (adjoint only), and add
700      exactConserv=.TRUE.
701    o pkg/generic_advdiff:
702      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
703      applies to files where Temperature & Salinity 2nd Order moments are used.
704    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
705      this uses a dynamically allocated internal state data structure
706      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
707      and requires a fortran 90 compiler
708    
709    checkpoint59q
710    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
711       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
712    o Refresh tutorial_global_oce_biogeo, notably:
713      - change bathymetry (put back seamounts in ACC, use hFacs)
714      - change EOS (POLY3 --> JMD95Z)
715      - use Bryan-Lewis vertical diffusivity
716      - use multidimensional advection
717      - remove old virtual virtual in dic pkg, now done through ptracer pkg
718      - change a couple of parameters in dic pkg
719    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
720    o pkg/obcs: change default to OBCSfixTopo = .true.,
721      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
722      - replace "debugMode" with "debugLevel .GE. debLevB"
723    o implementation of TAF directives for gchem,cfc,dic
724    o remove "exp5" (replaced by tutorial_deep_convection).
725    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
726      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
727      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
728      --> changes results in exp4, seaice_obcs
729    o tutorial_deep_convection :
730      update the set-up and increase resolution and domain size ; start
731      from pseudo initial conditions = output at t=120mn in order to see
732      something happening when running testreport.
733    o pkg/seaice: add os7mp as an advection scheme
734                  add check for advection schemes
735                  add a flag for restoring T and S underneath sea ice
736    o pkg/my82: add netcdf-support and diagnostics
737    o thsice pkg:
738      - Now hsMax limits snow height by turning it into ice following
739        flooding scheme (and now conserving energy)
740      - Slight rewriting of the formula in thsice_calc_thick.F
741      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
742      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
743    
744    checkpoint59p
745    o gchem / dic / cfc :
746      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
747      - add new parameter files: "data.dic" & "data.cfc" ;
748      - various re-arrangement in initialisation & header file ;
749      - fix tutorial_global_oce_biogeo for multi-threaded test.
750    o pkg/dic: test for "pickup_dic" file when restarting ;
751      if no pickup-file, can restart with a re-initialised pH (same as it did
752      before) providing pickupStrictlyMatch is set to False.
753    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
754      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
755    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
756      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
757    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
758     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
759       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
760    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
761       scheme to use for vorticty-term ;
762     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
763       (with default selectVortScheme, return to original discretisation)
764     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
765    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
766    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
767      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
768      also fix diagnostics VISCAHW & VISCA4W.
769    
770    checkpoint59o
771    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
772    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
773      move a few statemens out the main loop into separate loops
774    o pkg/shelfice:
775      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
776        (kg/m^2/s), does not break tests, because in verification/isomip,
777        rhoConstFresh=rhoConst (by accident)
778      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
779      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
780        new file model/src/seawater.F, so that they are available for all pkgs.
781      - convert potential temperature into in-situ temperature. This changes the
782        isomip tests => update tests
783    o add a flag writePickupAtEnd (default=true) to be able to suppress
784      writing a pickup at the last timestep
785    o tools/mpack-1.6 :
786      - disable automake (not working) and autoconf (not needed).
787      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
788        also cleaner with much less compilation warnings.
789    o pkg/profiles:
790      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
791      (for "less than 32 characters name" compiler requirement)
792    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
793      conditions that have a different sampling frequency than S/T/U/V obcs
794    o pkg/diagnostics (stats-diags):
795      - fix global Min/Max in case 1 processor get only empty tiles
796    o genmake2: replace (4 times)
797         make genmake_tc_1.o >> genmake_warnings 2>&1
798      with
799         COMM="$CC $CFLAGS -c genmake_tc_1.c"
800         echo $COMM >> genmake_warnings
801         $COMM >> genmake_warnings 2>&1
802      to make genmake2 always see the value of CC as specified in the optfile.
803    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
804      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
805      - modify verification advect_cs test to test SOM-advection on CS-grid.
806    o pkg/ctrl:
807      - Rewrite of ctrl_map_ini_ecco.F,
808        introducing a generic routine (ctrl_map_ini_gen.F).
809      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
810    
811    checkpoint59n
812    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
813      number in dedicate array "hdiag":
814      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
815        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
816      - many small changes (integer format) for large number of diagnostics
817      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
818        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
819    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
820      usingSphericalGrid, this allows to define the rotated grid coordinates
821      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
822      geographical coordinates according to the inverse of the rotation defined
823      by the Euler angles, so that Coriolis parameter and online-interpolation by
824      exf works with the geographical coordinates on XC/YC/XG/YG.
825      Naturally, this feature does not work with all packages, so some
826      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
827      profiles), because there the coordinates are assumed to be regular
828      spherical grid coordinates.
829    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
830      - introduce isopycnal diffusion coefficient control.
831    o tools/adjoint_options:
832      - additional control vector components.
833    o pkg/mnc: have mnc create marginally meaning full coordinate variables
834      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
835    o pkg/mypackage:
836      - add example of read/write pickup for state-var ;
837      - add entry points to the main code for state-vars diags & write-pickup.
838    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
839      transitions for useExfYearlyFields
840      - add new subroutine that determines the file to read from for
841        use*YearlyFields = .TRUE. and .FALSE.
842      - add a verification experiment to global_with_exf that tests
843        useExfYearlyFields with USE_EXF_INTERPOLATION defined
844    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
845      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
846      subroutines (which could be generated from a template, because they are
847      almost identical), for now they are included in obcs_prescribe_read.F for
848      simplicity
849    o pkg/exf:
850      - add a little more diagnostic to exf_interp_read (in analogy to
851        mds_read_field, can be turned off with debugLevel < debugLevA=1)
852      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
853        ugly but fast by unrolling short inner loops, inserting a unroll=8
854        directive in routine lagran, and splitting a loop and making do while the
855        outermost loop (the latter requires the intoduction of index arrays)
856    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
857    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
858      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
859    o verification/seaice_obcs: updated for restart test and latest options
860    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
861      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
862      for now this is only available for the C-grid code and also within
863      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
864    
865    checkpoint59m
866    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
867      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
868    o gad_som : fix flux output (& diagnostics) to have same units as other  
869      advection scheme fluxes (was previously multiplied by deltaT).  
870    o added verification/seaice_obcs both to test seaice open boundaries
871      and to provide an example matlab scrpt for generating them
872    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
873    o pkg/salt_plume: clean up salt_plume_frac.F to
874      remove redundancy in PlumeMethod 1 and 4
875    o pkg/kpp: added saltplume diagnostics
876    o pkg/obcs and pkg/seaice:
877      - do not set uice and vice to zero when OB*icefile are unspecified
878      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
879      - moved seaice tracer obcs after call to seaice_growth
880    o pkg/salt_plume: added various options for salt plume depth
881      criterion and for vertical distribution of the salt
882    
883    checkpoint59l
884    o pkg/ptracers: new version of ptracers pickup:
885      read meta file and write only fields which are needed to restart.
886      ( same logic as main pickup file ; also using pickupStrictlyMatch )
887    o pkg/seaice:
888      - add timescale for melting due to warm mixed layer as a means of
889        setting SEAICE_availHeatFrac more conveniently
890      - add a CPP-flag/runtime parameter check for flooding algorithm
891      - reformulated availHeat in seaice_growth.F to be independent of AREA
892    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
893      unit changes
894    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
895    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
896      SX vector computer.
897    o pkg/seaice:
898      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
899        seaice forcing fields can now be read only through pkg/exf
900      - removed some unused halos
901    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
902    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
903      or U/VICE from U/VWIND before computing U/VSTRESS
904    
905    checkpoint59k
906    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
907      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
908    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
909      all experiments pass when compile with un-initialised var. checking option.
910    o added pkg/salt_plume
911    o script to test restart (for now, in MITgcm_contrib/jmc_script)
912    o pkg/seaice: new read/write pickup version.
913      read meta file and write only fields which are needed to restart.
914      ( same logic as main pickup file ; also using pickupStrictlyMatch )
915    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
916    o lab_sea.hb87: modify the domain & update output.hb87.txt :
917      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
918      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
919      process. Fixed here by closing the domain at the Northern boundary.
920    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
921    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
922      a set of consecutive levels in/from a 3-D array.
923    o pkg/ptracers:
924      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
925      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
926    
927    checkpoint59j
928    o in pkgs: dic, obcs, offline, rbcs:
929      standard way to compute coeff. for time interpolation between 2 time reccords
930      which retains full precision (& make results less dependent on compiler).
931      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
932    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
933      packages instead of reading ice cover and wind speed separately
934    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
935     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
936      to allow to compile customized code before the update)
937    o cleaning-up:
938      - fix CPP instruction syntax in pkg/obcs
939      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
940        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
941      - fix some threads issue in IO parts.
942    o pkg/dic:
943      - add tons of "_d 0" (--> much better testreports !)
944       and then update outputs of tutorial_global_oce_biogeo
945    o pkg/mom_fluxform:
946      add a special version of momentum advection intended to conserve momentum
947      next to a bathymetry step or a coastline edge. (default = off = #undef)
948    o new read/write pickup version:
949      - for now, only implemented for main (mdsio) pickup file.
950      - write out only what is needed to restart; merge pickup_nh , pickup_ph
951        and main pickup together.
952      - read meta file; read only what is needed to restart; stop if a field
953        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
954        if it make sense (even if the restart is not perfect).
955      - if no meta file, assume that pickup to read corresponds exactly to
956        a pickup that would currently be written.
957      - read pickup written in the old format (until checkpoint59i) if it
958        recognizes an old meta file (no field-list).
959      - add a meta file in exp. which starts from a pickup: 2 cases:
960        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
961         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
962        b) a meta file describing the content of the associated pickup file
963         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
964    o pkg/mdsio & pkg/rw:
965      - new routine to read a meta file ; new set of routine to read
966        Multiple-fields file (with meta file).
967    o added open boundary conditions capability for seaice
968        HSNOW, HSALT, UICE, and VICE
969    
970    checkpoint59i
971    o adjoint:
972      * fix multiDimAdvection adjoint
973        (partial recomputation problem by TAF for fVerT(:,:,kDown)
974        and comlev1 size definition (maxpass vs. max. number of tracers)
975      * verification/global_ocean.90x45x15 adjoint now tests
976        NLFS and multiDimAdvection using DST3 (=30)
977      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
978    o pkg/kpp: add "_d 0" to real constant (if missing);
979      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
980      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
981    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
982      for internal parameters related to restart process (formerly from PARAMS.h)
983      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
984    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
985      as argument. (only atm2d & obcs write_pickup have not yet been updated)
986    o pkg/monitor:
987      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
988      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
989      - account for deep Atmosphere factor and density factor (anelastic)
990    o added open boundary conditions capability for seaice HEFF and AREA
991    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
992      thermodynamics
993      - requires a little reorganization, which affects the testreport results
994        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
995        so that now the conservative form is tested
996      - add a few comments
997    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
998    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
999    o add new diagnostics to seaice: advective, diffusive fluxes (only for
1000      multidim-advection, for scheme 2 they are not filled) and transports,
1001      thermodynamic growth rates
1002    o change units of EmPmR (inside the code, + within coupling interface)
1003      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
1004      Affects results @ truncation level (cg2d match) and update output of
1005       experiments: lab_sea(6), global_ocean.90x40x15(10),
1006      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
1007      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1008      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1009      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1010    
1011    checkpoint59h
1012    o pkg/exf:
1013      - improve vectorization by moving if-statement out of loops in
1014        exf_mapfields, exf_radiation
1015      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1016    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1017    o testreport:
1018      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1019        monitor & update offline_exf_seaice exp. output.
1020      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1021    o pkg/seaice:
1022      - bug fix in the evp solver: boundary conditions were affected be
1023        masking of zMax/zMin (changes results)
1024      - minor bug fix in boundary conditions in seaice_calc_strainrates
1025        (changes results for no_slip)
1026      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1027      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1028      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1029        stress formulation and no-slip boundary conditions
1030    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1031      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1032    o pkg/seaice: a first HSALT time stepping equation has been checked in
1033    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1034      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1035      without requiring DO-IF statements
1036    o pkg/thsice:
1037      use continuous power-law function for partition of energy between lateral
1038      melting/freezing and thinning/thickening ; old code using step function
1039      still available with #undef THSICE_FRACEN_POWERLAW
1040      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1041    o testreport: change AD testing : check against results/output_adm.txt
1042      using same scripts as for forward test.
1043    
1044    checkpoint59g
1045    o adjoint testing: in preparation for changing testreport:
1046      - output format: cost and grad written on separated lines
1047      - ad output results in directory "results" (instead of "results_ad")
1048    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1049    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1050    o pkg/ecco: allow user defined cost function contributions
1051    o testreport:
1052      Allow to choose (per experiment) the list of tested output variables
1053       and the main variable (used to issue a pass/FAIL ) ;
1054      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1055      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1056      Also modify printing of summary:
1057       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1058       b) echo the list of tested variables in the individual summary.txt of
1059          each experiment.
1060    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1061      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1062      (but still depend on the tile decompostion of the domain).
1063    o pkg/seaice: change a discretization detail to make the B-grid code
1064      "more symmetric". This change is likely to remove all "ridges/leads" that
1065      where quasi-aligned with the grid in B-grid solutions. It may also be
1066      the solution to the stress coupling issues with the B-grid.
1067    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1068      remove .cvsignore from input dir. (since testreport no longer run here).
1069    o pkg/thsice:
1070     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1071     - fix reshaping of sea-ice just after advection:
1072       melt all the ice only if ice-volume is too small.
1073     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1074       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1075     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1076    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1077      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1078    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1079      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1080      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1081      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1082      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1083      -> update output.txt
1084    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1085     this affects truncation error: -> update output.txt of exp:
1086      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1087      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1088    
1089    checkpoint59f
1090    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1091    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1092      a bounded range (in forward mode)
1093    o pkg/ecco, ctrl, autodiff and mom_common:
1094     internal parameter controls, completements of implementations
1095    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1096    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1097      (not seem any difference in testing results).
1098    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1099       at face corners.
1100    o pkg/generic_advdiff:
1101     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1102      loop range indices for computing vertical advection tendency
1103      and do the calculation in the interior only (no overlap) ;
1104      for now, only implemented for SOM advection (to save CPU time).
1105     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1106    o exch2 adjoint
1107      First set of changes:
1108      - add exch2 hand-written adjoint templates
1109      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1110        This will require cleanup in pkg/autodiff/*.F
1111        (changed routines currently kept separate in verif. code/)
1112      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1113        that used to hide exch2 or cubed-sphere specific code
1114        (commented via 'cph-exch2')
1115    o pkg/seaice
1116      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1117    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1118       output of global_ocean.cs32x15.thsice .
1119    
1120    checkpoint59e
1121    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1122      for B-grid vector (not yet tested) and C-grid vector (<- only used
1123      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1124    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1125      (#ifdef ALLOW_SALT_PLUME)
1126    o gather_2d/scatter_2d: removed halo regions
1127    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1128      scheme and the corresponding test case (under front_relax dir). For now,
1129      only available with Skew-flux form and not yet tested in realistic set-up.
1130      adjoint: store directives updated, but gradient checks deteriorated,
1131      so maybe GM/Redi adjoint is now broken.
1132    o seaice adjoint
1133      * add AREA, HEFF, HSNOW as control variable
1134        (should not change lab_sea results)
1135      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1136    o pkg/seaice:
1137      * added computation of saltFlux in seaice_growth;
1138        For time being, sea ice salinity is assumed constant
1139        contribution of snow flooding to freshening of sea ice is neglected.
1140        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1141        defaults to 0.0 in order to maintain backward compatibility.
1142        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1143      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1144      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1145        heat content used to melt or grow ice
1146      * commented out cap of HICE: it helps keep ice thinner
1147      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1148      * applied OBCS T/S mask to HEFFM sea ice mask
1149    
1150    checkpoint59d
1151    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1152     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1153     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1154    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1155     and change default value of parameter "GM_Small_Number";
1156     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1157       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1158       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1159    o pkg/ecco: cost function when applying pkg/smooth to controls
1160    o pkg/ctrl: add forcingPrecond run time parameter
1161    o pkg/seaice:
1162     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1163     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1164       changes verification/lab_sea
1165     - rearrange implicit part of u-equation in LSR solver to make it easier to
1166       read, understand, and debug. This causes changes at the truncation level.
1167     - fix (serious) bug in the boundary conditions (sign error in the implicit
1168       part) of the LSR solver. Changes all LSR results.
1169     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1170       is initilized with small values - does not change lab_sea results.
1171     - added HsnowFile initialization capability
1172    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1173     initialization of pkg/smooth and application to control vector
1174    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1175    o dependencies: pkg/profiles requires pkg/cal
1176    o pkg/profiles:
1177     - added option ALLOW_PROFILES_GENERICGRID
1178         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1179         that interpolation information (grid points and coefficients) is provided
1180         within the netcdf input files.
1181         -> sample matlab scripts can be found in MITgcm_contrib/gael
1182         that allow you to prepare netcdf input files.
1183     - also modified: cleaner include statements, cleaner error print statements,
1184       cleaner stops when error, and more tests of the netcdf input files consistency.
1185    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1186    o pkg/seaice:
1187     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1188       requires a new routine: seaice_diagnostics_fill.F
1189     - make sure that seaice does not move if not forced (pressure replacement
1190       method, Hibler and Ip, 1995), changes results
1191     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1192     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1193       It is turned off by default (=-1.), because it changes the results.
1194     - make it possible to read AREA from a file, too.
1195    
1196    checkpoint59c
1197    o add S/R and diagnostics for oceanic mixed-layer depth
1198    o move GMRedi call after all vertical mixing schemes (including KPP)
1199    o pkg/thsice:
1200     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1201      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1202    o pkg/obcs:
1203     - bug fix for balance code
1204    o pkg/seaice:
1205      - allow values of SEAICE_elasticParm > 1
1206      - add new parameter SEAICE_evpTauRelax as an alternative
1207        to SEAICE_elasticParm
1208      - make lsr boundary conditions free slip (by default), changes result
1209      - add code for no slip boundary conditions for lsr
1210      - set minimum of zeta to zero (and not 4e8) (changes results)
1211      - add a cap on AREA after advecting AREA if seaice_growth is not called
1212    o change calculation of Visbeck K:
1213      - no longer depend on tapering scheme; instead, compute slope (limited
1214        by GM_maxSlope). this is equivalent to what was comuted before with
1215        clipping or linear tappering.
1216      - fix vertical averaging (wrong by 1/2 level)
1217      - leave the old version (but will not be maintained) within
1218        #ifdef OLD_VISBECK_CALC / #endif
1219      - update output of exp. ideal_2D_oce
1220    o change error catch in calc_r_star to improve vectorization
1221    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1222      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1223    o adjoint:
1224      Re-organized adjoint checkpointing according to Matt Mazloff
1225      (but with modifs/completions/cleanups)
1226      Storing is now bundled into large arrays to optimized I/O
1227      (and second step in cleanup of the_main_loop)
1228    
1229    checkpoint59b
1230    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1231      - export/import (between ocean & coupler) fields needed for ocean DIC.
1232    o pkg/seaice:
1233      - get rid of three more exchanges seaice_calc_viscosities (required
1234        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1235      - bug fix in seaice_ocean_stress (update of lab_sea required)
1236      - reduce loop boundaries to necessary minimum also in seaice_evp
1237      - go back to the old way of computing deltaC/Z as the adjoint likes that
1238        better
1239    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1240      passive tracer to an Age Tracer) + update output.txt
1241    o pkg/exf:
1242      - implement A-grid / C-grid selection for wind-stress input files.
1243      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1244      for now, in exf_bulk_largeyeager04.F only :
1245      - change implementation for case where windspeed + 2. components wind-stress
1246        are read-in. AND use rhoConstFresh to convert evap.
1247    o pkg/seaice:
1248      - use correct EXCH_UV for wind-forcing (on A-grid).
1249      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1250        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1251    o pkg/exf:
1252      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1253      EXF_INTERPOLATION:
1254      - merge global_with_exf/code version of exf_interp_read.F
1255        to the main code ;
1256      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1257        reading the file ; Important: This options needs to be defined to recover
1258        previous code.
1259        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1260      - no longer loose real*8 precision along the way when using exf_iprec=64.
1261    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1262      - change discretisation of evp-solver in order to avoid another exchange
1263        (changes lab_sea) and clean up a little
1264      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1265        help the adjoint (this also changes the results slightly)
1266      - add a few "_d 0" where they had been missing in seaice_evp.F
1267      - cleaning up: remove unused seaice_calc_rhs.F
1268    o pkg/exf: some cleaning-up:
1269      - change various "constants" into runtime parameters
1270      - cleaned-up Large&Yeager04 routine which should eventually
1271        replace exf_bulkformulae.F (changed names of S/R and CPP)
1272        and merged various ALLOW_ATM_WIND options
1273     only used with thsice pkg (in thsice_get_exf.F):
1274      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1275        which are used when useStabilityFct_overIce=TRUE (= the default)
1276      - change default values of ice & snow emissivity and scale downward LW
1277        by ice & snow emissivity.
1278    o pkg/thsice:
1279     fix few little problems, in thsice_calc_thickn.F:
1280      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1281      - melt only laterally if hIce < hThinIce (as the comments say)
1282      and in thsice_extend.F:
1283      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1284      - start to form ice as soon as the minimum ice-volume is reachable.
1285     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1286      and cpl_aim+ocn
1287    o pkg/kpp
1288     - move computation of surface related input fields to KPP into a new
1289       subroutine kpp_forcing_surf.F
1290     - remove wrong (within bi,bj loops) EXCH calls.
1291     - little cleaning (add argument myThid in last position, cvs header ...)
1292     - for now, fix conservation problem by exchanging KPPviscAz (may not
1293       be the best fix)
1294    o pkg/seaice
1295     - check for inconsistent evp parameter/cpp-flag combination
1296     - remove leftover errIO flat for obsolete name list error handling
1297    o OpenAD
1298     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1299    
1300    checkpoint59a
1301    o pkg/seaice: some parameter clarifications and a little bit of clean up
1302    o pkg/thsice: rename run-time parameters:
1303       himin       -> hIceMin
1304       himin0      -> hThinIce
1305       hihig       -> hThickIce
1306       i0          -> i0swFrac
1307       transCoef   -> bMeltCoef
1308       frac_energy -> fracMelting
1309      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1310       with default values (for now) that do not change the results.
1311      remove old version of thsice vars advection in pkg/seaice.
1312    o in FFIELDS.h:
1313      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1314      - make pLoad & sIceLoad always available (but still only used if
1315         ATMOSPHERIC_LOADING is #define).
1316    o pkg/kpp: replaced _KPP_RL with _RL
1317    o bug fixes for vertical diffusivity computations when both KPP and
1318        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1319        are no longer updating the vertical diffusivity array
1320        (passed as argument) but are (re-) setting those arrays.
1321    o pkg/seaice: fix bug in evp solver, while doing that
1322      - change (improve?) discretization of stress computations for both
1323        cgrid-lsr and evp solver
1324      - add a new routine to compute strain rates
1325      - the above changes lab_sea results
1326      - add no slip conditions for evp solver (off by default), lsr-version
1327        may follow
1328      - fix exchange for shear at Z-points (does not change lab_sea)
1329      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1330        (to force the user to pick a time step since there is not "safe" way
1331        of choosing it)
1332      - add principal stress diagnostics
1333      - rearrange fields for evp a little to avoid having to call a: too many
1334        exchanges and b: exchanges for stress trensor components which we do
1335        not have.
1336      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1337        of evp, complete rewrite for lsr case (latter is does not yet work
1338        in all cases)
1339    o pkg/kpp: add code to have mixing in shelf ice caverns
1340      - add myThid to all kpp routines (long overdue)
1341    
1342    checkpoint59
1343    o pkg/exf:
1344      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1345        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1346      - move exf header files from lower_case.h to UPPER_CASE.h ;
1347        add missing cvs Header & Name
1348      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1349      - add namelist param. selectStressGridPosition, exf_monFreq
1350      - retire many _CLIM routines, and remove data.exf_clim
1351        + params moved to data.exf
1352        + climsst, climsss now handled by exf_set_gen, i.e.
1353          climss?period=0 refers to constant field,
1354          climss?period=-12 to monthly forcing
1355      - split up namelists in data.exf
1356    o pkg/seaice:
1357      - remove seaice_exch and seaice_exch_uv
1358      - remove superfluous exchange of theta
1359      - add myThid to seaice_budget_ocean/ice
1360      - add new interface for atmospheric wind forcing (C-grid only)
1361        + new routine
1362        + two new field (taux, tauy for stress over ice)
1363        + removed one global field (DAIRN) for C-grid case only
1364    o pkg/thsise
1365      - 2nd set of modifs for thsice adjoint in conjunction with exf
1366    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1367    
1368    checkpoint58y_post
1369    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1370      vertical diffusivity, similar to that in MOM4; turned on using
1371      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1372      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1373    o Added capability for 3D specification of background vertical diffusion
1374      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1375      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1376      "data" file that contains the 3D vertical diffusivity coefficients.
1377    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1378      - add code within pkg thsice to advect & diffuse sea-ice fields
1379      similar to (and will replace) what has been added in  seaice_advdiff.F,
1380      but: - conserving Mass, Heat & Salt.
1381           - better when using non-linear advection scheme (not yet fully tested)
1382           - can also be used in atmospheric set-up (for now, only the diffusion).
1383    
1384    checkpoint58x_post
1385    o IO option for global-file compact format:
1386      - add options when generating topology (utils/exch2/matlab-topology-generator)
1387      - add I/O capability (pkg/mdsio).
1388      - adapt utils/matlab/rdmds.m to read this format.
1389      for now long-line format not yet supported by pkg/mdsio (& exch2).
1390    o shelfice: add a few diagnostics
1391    
1392    checkpoint58w_post
1393    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1394      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1395      (and replace horiVertRatio in NH code).
1396      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1397                         and tutorial_plume_on_slope (sensitive to truncation)
1398    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1399      directly to drive seaice model (C-grid only)
1400    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1401     - reintroduce computation of wind from stress,
1402     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1403       mass points to avoid tau = 0
1404     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1405    o rdmnc.m: make it work with "global" files created with gluemnc
1406    o rdmnc.m : some improvements in dealing with singleton dimension
1407      (tested on all testreport mnc output files).
1408    o genmake2: disable pkg/profiles if netcdf test fails.
1409    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1410    o move call to cal_readparms up to make calendar parameters/variable available
1411      to all packages
1412    
1413    checkpoint58v_post
1414    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1415      useDynP_inEos_Zc tested.
1416    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1417    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1418      and portions thereof.  See read_cs.txt for description and examples.
1419    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1420      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1421      following the great-circle arc between those 2 points.
1422    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1423      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1424    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1425     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1426     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1427     - still needs work (not working with some options ; efficiency to improve)
1428       and serious testing.
1429     - use this scheme for temperature & salinity in 2 advection test exp.:
1430       advect_xy & advect_xz, respectively.
1431    
1432    checkpoint58u_post
1433    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1434    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1435    o testreport: add option "-skipdir" to skip some test.
1436    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1437      momentum calculation.
1438    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1439    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1440      remove checkpoint.F and the_correction_step.F (no longer used);
1441      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1442    o add option (linFSConserveTr) to correct for tracer source/sink due to
1443      Linear Free surface
1444    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1445    o pkg/thsice: fix reading mnc-pickups
1446    
1447    checkpoint58t_post
1448    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1449    o pkg/mdsio:
1450     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1451       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1452       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1453     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1454     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1455       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1456     - new S/R (to replace MDSWRITEMETA), which allows to write more
1457       informations (variable names, time ...) to meta files.
1458     - modify rdmds.m to give back the meta file content.
1459    o pkg/diagnostics: change vertical interpolation to be safer, and more
1460       flexible (define p-levels to interpolate to in data.diagnostics);
1461      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1462       diagnostic pointer.
1463    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1464    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1465    o fix multi-category seaice:
1466     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1467       SEAICE_MULTICATEGORY
1468     - fix short wave heat flux
1469    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1470       and allow to use EVP solver. Change forward lab_sea: test both EVP
1471       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1472    o Initial check-in of lab_sea adjoint
1473      (very similar to natl_box_adjoint/code_seaice)
1474      * used C-grid and EVP solver
1475      * used KPP, GM/Redi
1476      * uses inAdExact=.TRUE.
1477      * gradient checks fail for both ADM and TLM
1478        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1479        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1480        issue is related to forward mismatch between g77 an ifort
1481    o pkg/seaice: overhaul of thermodynamics
1482     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1483     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1484     - move a few global fields out of SEAICE.h into seaice_growth.F and
1485       make them 2D (FICE/QNETO/ ...)
1486     - remove FO (it is the same as QNETO)
1487     - introduce a few local fields to avoid modifying external fields such
1488       as atemp, etc.
1489    
1490    checkpoint58s_post
1491    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1492      changed exf_set_gen.F so that
1493        genperiod=0 means input file is one time-constant field and
1494        genperiod=-12 means input file contains 12 monthly means
1495    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1496      this affects truncation error ; generate new output file for exp. which
1497      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1498        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1499        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1500        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1501        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1502        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1503    o start implementation of deep-atmosphere and anelastic formulation
1504    o verification: remove 2nd copy of input files and use script "prepare_run"
1505      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1506    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1507    o profiles: fix for multithreaded case
1508    
1509    o diagnostics: rename few diags:
1510      s/'PRESSURE'/'RCENTER '/g
1511      s/'TICE    '/'oceFreez'/g
1512      s/'TAUX    '/'oceTAUX '/g
1513      s/'TAUY    '/'oceTAUY '/g
1514      s/'SWFLUX  '/'oceQsw  '/g
1515      s/DIFx/DFxE/g
1516      s/DIFy/DFyE/g
1517      and add few ocean-forcing diagnostics:
1518      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1519    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1520      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1521      as actual snow thickness.  It now refers everywhere to effective snow
1522      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1523    
1524    checkpoint58r_post
1525    o modifications to pkg/seaice/growth.F, which change results of
1526      lab_sea experiment: fixes pertain to melting snow over open water, to
1527      masking EVAP under sea ice, and to using the correct AREA variable for
1528      computations of EVAP, PRECIP, HSNOW, and GHEFF
1529    o add ability to read bathy, salt, and theta using MNC (off by def)
1530    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1531      both are turned off by default and do no change any results
1532    o seaice advection with pkg/thsice: a step toward the use of non-linear
1533      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1534    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1535      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1536      in natl_box (affects results @ truncation level: update output.txt)
1537    o multi-threading and IO:
1538      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1539      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1540        (needed to work with SingleCpuIO): tested in all verif. exp.
1541    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1542      affects the results (but none of the verification test uses this scheme).
1543    o Adding some pkg/diagnostics capability to pkg/seaice
1544      (will certainly be subject to changes)
1545    o ctrl: adding new control variables:
1546      lwflux, lwdown, evap, snowprecip, apressure, runoff
1547    
1548    checkpoint58q_post
1549    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1550      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1551      high_res_cube configuration by 4% on Columbia.
1552    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1553      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1554      dynamical allocation (seems to work in multi-threaded).
1555    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1556      single CPU io) so that TAF does not have to see EESUPPORT.h
1557    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1558    
1559    checkpoint58p_post
1560    o obcs: stop if obcs is used with useCDscheme = .true.
1561    o shelfice:
1562     - fix a sign error so that no slip at shelfice interface works
1563     - remove stop for combination non-hydrostatic code and shelfice. That does
1564       not mean, that the results are correct, but at least they are numerically
1565       stable
1566    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1567    o added adjoint exch routined for all exch*3d* routines
1568      and updated flow directives
1569    
1570    checkpoint58o_post
1571    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1572      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1573    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1574      and clean-up reading/writing of pickup files.
1575    o fix local version of read/write pickup (NH part) in rotating_tank/code
1576    o simplify EXCH interface:
1577     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1578     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1579    o added the regrid package
1580    o shelfice:
1581     - add a simple boundary layer scheme to reduce noise
1582     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1583    
1584    checkpoint58n_post
1585    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1586       local variable (not in common block).
1587    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1588      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1589      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1590        to work with SingleCpuIO.
1591    o add "_d 0" to real constant of pkg/cfc subroutines ;
1592       update exp. cfc_exemple & tutorial_cfc_offline output files.
1593    o multi-threading and IO:
1594      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1595        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1596      - barrier before and after reading.
1597      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1598      - avoid using MDS_WRITELOCAL for LAND pkg output.
1599      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1600        common-block variables ; Allows multi-threading with master-thread IO.
1601    o change default MAX_NO_THREADS from 32 to 4 ;
1602      and stop cleanly when MAX_NO_THREADS is too small.
1603    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1604    
1605    checkpoint58m_post
1606    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1607       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1608    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1609       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1610       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1611    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1612        add MITgcm_tutorials (= code + all the tutorials)
1613    o ecco, option to compute cost for total ssh (mean+anom)
1614    o consistent with addition of ptracer and ssh in pkg/profiles
1615    o profiles: adding ptracer and ssh
1616    o testreport: change multi-test output-file name
1617      (from output.txt.{name} to output.{name}.txt)
1618    o profiles: now ok for mutli-tiles case
1619    o seaice: add 4 parameters for different advection schemes for area,
1620      (effective) seaice thickness, enthalphy, and snow height. Their default
1621      is the standard parameter SEAICEadvScheme
1622    o calc_gw:
1623     - add cosFacU in zonal viscous flux (harmonic.visc.).
1624     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1625       of tutorial_plume_on_slope.
1626    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1627    o calc_gw: true flux-form, account for horizontal grid spacing.
1628      update rotating_tank results, but not plume_on_slope (affected at
1629      truncation level, 11 digits).
1630    
1631    checkpoint58l_post
1632    o calc_gw:
1633     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1634     - remove side-drag for now (need to fix it); update plume_on_slope results.
1635     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1636    o commit code to make SST/SSS weights spatially variable
1637      (based on either variable in-situ or variable initial T/S weights)
1638    o pkg/ecco:
1639      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1640        now based on horizontally varying weights wthetaLev, wsaltLev
1641      * cost_averagesflags now returns year indices in addition to day, month
1642      * sflux balance is performed on annual basis
1643        (sflxumm, sfluxmm2, bal_sfluxmm)
1644      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1645        including separate counting and multipliers
1646    o pkg/rbcs
1647      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1648    
1649    checkpoint58k_post
1650    o testreport:
1651     - always build in dir. "build" (if not there, mkdir build instead of building
1652       & running in input)
1653     - run in dir run (if it exists), in build otherwise.
1654     - call prepare_run (if input/prepare_run exists)
1655     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1656    o pkg/exf modifications to interpolation and rotation routines for more
1657       reasonable treatment of North Pole singularity: for tracers North Pole
1658       value is set to northernmost zonal-mean value, for zonal velocity it is
1659       set to zero, and for meridional velocity it is set to northernmost value.
1660    o pkg/exf/exf_check_range.F
1661     - add tile index to diagnostics and move stop statement to the very
1662       end of the routine.
1663    o pkg/diagnostics: (diagnostics_main_init.F)
1664      define title of isomorphic variables according to the current config.
1665    o pkg/thsice with pkg/seaice dynamics:
1666    - fix domain of computation (interior only, required for exf) and do exchanges
1667    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1668    o towards a standard way of dealing with multi-threading in MONITOR
1669      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1670    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1671       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1672    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1673    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1674    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1675       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1676    o tracer advection:
1677     - clean-up and simplify calc_common_factors.F
1678     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1679       advection subroutine (but still not used within DST advection S/R)
1680    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1681    
1682    checkpoint58j_post
1683    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1684      from file (collects calls previously in FORWARD_STEP)
1685    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1686    o adjoint store dir. adjusted accordingly
1687    o genmake2
1688      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1689    
1690    checkpoint58i_post
1691    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1692      on wind stress (SEAICEstressFactor defaults to 1.)
1693    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1694      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1695    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1696      on CS-grid: no longer loosing mass.
1697    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1698    o pkg/ggl90: fix sloppy output and fix a bug
1699    o pkg/seaice: added SEAICEuseEVPpickup parameter
1700      - Set to false in order to start EVP solver with
1701        non-EVP pickup files when using SEAICEuseEVP
1702      - fix sign error in diffusion in seaice_calc_rhs
1703    
1704    checkpoint58h_post
1705    * Modifications for bottom topography control
1706      o replace hFacC by _hFacC at various places
1707      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1708      o add non-self-adjoint cg2d_nsa
1709      o update autodiff support routines
1710      o re-initialise hfac after ctrl_depth_ini
1711      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1712    * Adding verification for 5x5 box (4-layer) bottom topography control
1713    
1714    checkpoint58g_post
1715    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1716       used for mean seasonal cycle, mean diurnal cycle); add an example
1717       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1718    o pkg/ggl90:
1719      - add parameter (minimum surface kinetic energy)
1720      - fix bug (avoiding division by zero)
1721    o couple pkg/thsice to pkg/seaice:
1722      - modify advection in seaice to accomodate new scalar fields to be advected
1723      - only muliDimAdection scheme work with seaice/thsice
1724      - mapping of thsice-variables to seaice-variables, back and forth
1725      - does not break the verification experiments, but does not give the
1726        desired results either
1727    o pkg/seaice
1728      - make (default) second order advection a bit less confusing?
1729    
1730    checkpoint58f_post
1731    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1732      to pkg/seaice):
1733      - new routines thsice_map_exf and thsice_get_exf provide the interface
1734      - add an additional formal parameter to thsice_solve4temp
1735    o pkg/exf:
1736      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1737      - correct Stefan-Boltzmann constant
1738      - new parameter for longwave surface emittance
1739      - separate some stuff from exf_bulkformulae into new routines  
1740        exf_radiation, exf_wind
1741      - add new parameters and constants: longwave emissivity for ocean, ice
1742        and snow, evaporation parameters over ice
1743      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1744        either wind from stress or stress from wind
1745    o pkg/thSIce:
1746    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1747    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1748       and THSICE_CALC_THICKN
1749    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1750    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1751      to make debugging easier.
1752    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1753    o pkg/bulk_force:
1754      - clean-up comments and parameters ;
1755      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1756    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1757      generate new output for test-experiment: aim.5l_cs.thSI
1758    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1759      testreport accordingly
1760    
1761    checkpoint58e_post
1762    o SEAICE_CGRID adjoint done
1763    o R_STAR adjoint implemented.
1764      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1765      * need to sort out init. of h0facc, etc.
1766    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1767      to be able to use it in pure forward.
1768    
1769    checkpoint58d_post
1770    o upgrade simple test-experiment to tutorial example:
1771     step.1: duplicate the experiment and (step.2) will remove the old copy.
1772      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1773      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1774      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1775      tutorial_global_oce_biogeo    <- copy of dic_example
1776      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1777      tutorial_plume_on_slope       <- copy of plume_on_slope
1778      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1779      tutorial_global_oce_optim     <- empty for now (David ?)
1780      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1781     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1782    o correct a sign problem in cost_scat.F
1783    o obcs and ptracers: fix boundary conditions for advections schemes
1784      with larger stencil
1785    o thsice adjoint: start
1786    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1787      completeness
1788    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1789      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1790    o ptracers adjoint:
1791      * avoid extensive recomputatations
1792      * fix missing re-init. of gptr (missed by TAF)
1793    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1794      me to turn off the excessive output to STDOUT that this package produces
1795    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1796      and add those terms in Vector-Invariant formulation.
1797    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1798      if the control period (xx_hfluxperiod etc) is 0
1799    o in profiles pkg, clean routines and fix details
1800    o in ecco pkg, reading ssh data:
1801      fix problem in case the model does not start at iter0=0
1802    o fix mnc-pickup/restart for ptracers
1803    o new package prifiles:
1804      code to compute profile-based cost by Gael Forget
1805      (modifs in ecco, ctrl, autodiff)
1806    o Benign bug fix in initialization (spotted by M. Mazloff) of
1807      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1808    
1809    checkpoint58c_post
1810    o adjoint: finish NLFS adjoint and provide reference output in
1811      verification/global_ocean.90x40x15/results_ad_nlfs
1812    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1813      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1814      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1815      with SEAICE_CGRID defined.
1816    o move calendarDumps from "data" to "data.cal" and clean-up the code
1817      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1818    o add useEXF & useCAL flags (for now, set in hard-coded way)
1819    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1820      (were missing in NH mode, and wrong in quasihydrostatic mode).
1821      waiting for Chris updated version of calc_gw to add those CALLs.
1822    o fix bug in quasihydrostatic S/R ;
1823      add a test for this option: global_ocean.90x40x15.qshyd
1824    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1825      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1826    o add on/off flag useOffLine for package OFFLINE
1827    o seaice:
1828      - modify advection so that it works also on the C-grid
1829      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1830        problem in multi-tile runs with C-grid
1831      - add flags for clipping ice velocities and/or masking solver forcing
1832      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1833        C-grid solver
1834      - added a few comments to seaice_diffusion.F
1835      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1836        are now exclusive)
1837      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1838        required re-ordering the code a little:
1839       + make DAIRN global variable (defined in SEAICE)
1840       + move computation of the viscosities eta and zeta into a new separate
1841         routine (because I need to recompute them in seaice_ocean_stress.F)
1842    
1843    checkpoint58b_post
1844    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1845      update output.txt of exp. aim.5l_cs.thSI
1846    o various mnc cleanups and improvements:
1847      + shrink lookup tables by factor of ~4
1848      + better error reporting when running out of lookup space
1849      + able to handle longer path/file names (up to 500 chars)
1850    o adjoint:
1851      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1852      - TBD: "hidden" mom_vecinv recomp. in dynamics
1853    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1854     (allow to differentiate between forcing components using new integer flags:
1855      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1856     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1857    o ecco
1858      - enable trend removal from SSH anomaly obs.
1859    o adjoint
1860      - a fix for PmEpR when #undef EXACT_CONSERV
1861      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1862      - try to fix "hidden" recomp. in forward_step for NLFS
1863        (NLFS seems broken sometimes after I checked it in)
1864    o seaice:
1865     - add c-grid version of the dynamic solver:
1866       + three new routines that are the c-grid substitute lsr, dynsolver
1867         and ostres
1868       + put a few fields that were local to dynsolver into global common
1869         blocks, so that I can move the computation of stresses etc into
1870         seaice_lsr (saves coding but may break the adjoint).
1871     - replace more hardwired parameters by runtime parameters
1872     - add ice masks that mask the rhs of the implicit solvers where there
1873       is no ice (commented out in seaice_dynsolver, because i am not sure
1874       if this works properly), eventually this should replace the clipping
1875       of ice velocities in seaice_dynsolver to +/-40cm/s.
1876    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1877      include it only where its needed
1878    o move balancing of fluxes before the call of external_forcing_surf
1879    o seaice:
1880      - correct units of turning angles (now they are really in degrees)
1881      - move computation of GWATX/Y out of main routine into dynsolver
1882      - initialize GWATX/Y in seaice_init
1883    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1884      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1885    o seaice: add runtime flags for turning angles (default to zero)
1886    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1887      and trend from exf forcing and ctrl control adjustments
1888    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1889      (since checkpoint57x_post)
1890    o change the default rotation period to 86164.s = the Earth rotation
1891    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1892      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1893    o seaice advection: add code for choosing between the default (2nd order
1894      central differences) and multiDim advection schemes provided by
1895      pkg/generic_advdiff
1896    o seaice:
1897      - removed all references to SEAICE_GRID.h fields from
1898        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1899        (cubed-sphere configuration will change a little)
1900      - grid computations in seaice_init are obsolete now.
1901      - cleaned up code a little so that is easier to read (hopefully).
1902      - added new (better?) discretizations of default advection and diffusion
1903        (turn on with SEAICEuseFluxForm)
1904      - replace 1 in 3d global fields by kSurface in growth.F
1905      
1906    checkpoint58a_post
1907    o seaice:
1908      - bug fix in advect.F
1909    o shelfice:
1910      - separate shelfice load anomaly from pload (breaks with time
1911        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1912        Its default is 0., but it may be computed more cleverly from (unknown)
1913        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1914        done offline. A good approximation of the pressure load anomaly is
1915        necessary to avoid large initial adjustment processes underneath
1916        deep-reaching shelfice.
1917      - small fix in ISOMIP shelfice_thermodynamics
1918      - add more sophisticated thermodynamics of Hellmer (1989), this is
1919        now the default
1920      - give a few constants more intuitive names
1921    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1922      if bulk formulae are used in long integration (especially EmPmR). Turn
1923      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1924      if balancePrintMean, the imbalance that is substracted is printed to
1925      STDOUT.
1926    o fix bug (typo) in obcs_apply_eta.F
1927    o add a new package shelfice which enables us to model the circulation
1928      underneath shelf-ice with draughts of hundreds of meters.
1929     - works
1930     - to do: + include improved thermodynamics
1931              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1932                instead of new field kTopC
1933              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1934                instead of new field R_shelfIce and new code in ini_depth.F
1935                and ini_mask_etc.F?
1936              + adjust vertical mixing schemes?
1937    o seaice pkg:
1938     - add a cpp-flag to include a simple formula for a salinity dependent
1939       freezing point of sea water at the surface
1940     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1941       meridional stresses are now different (and hopefully correct)
1942    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1943       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1944       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1945    o pkg/diagnostics: add options and parameters for regional-statistics
1946       diagnostics ; define regions by reading a region-mask from a file
1947       (might add other options later)
1948    o pkg/bulk_force:
1949     - add option and parameters to use AIM surface-flux formulae.
1950     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1951       others forcing fields (defined in PARM05, parameter file "data") are loaded
1952       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1953     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1954     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1955     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1956       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1957     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1958    
1959    checkpoint58
1960    o add "--embed-source" option to genmake2 which, when the supporting
1961      tools can be compiled (as determined by genmake2) will turn on the
1962      embed_files package which then embeds the entire MITgcm source code
1963      (*.[fFhc] + Makefile) used for the build within the executable
1964      - requested by CNH but off by default
1965      - adds a paltry <9MB to the mitgcmuv executable in most cases
1966      - only writes the output when useEMBEDSRC in eedata is true
1967    o clean up 3-dim. relaxation codes:
1968      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1969      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1970      * Thanks to Tom Haine for testing!
1971    
1972    checkpoint57z_post
1973  o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):  o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1974    affects output (@ truncation level) of exp. plume_on_slope ; updated.    affects output (@ truncation level) of exp. plume_on_slope ; updated.
1975  o fix the pickup behavior for obcs in combination with ptracers  o fix the pickup behavior for obcs in combination with ptracers
# Line 833  o add two new packages Line 2799  o add two new packages
2799    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2800    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2801      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2802      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2803  o add offline package  o add offline package
2804  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2805    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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