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revision 1.725 by heimbach, Fri Sep 8 23:41:17 2006 UTC revision 1.1172 by mlosch, Fri Oct 9 11:15:45 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 autodiff
8     - fix bug in autodiff_restore
9     - make genmake2 remove comments and empty lines from ad_input_code.f in
10       order to reduce file size (new script file remove_comments_sed)
11    o allows to specify vertical profile of vertical viscosity (viscArNr)
12    o pkg autodiff
13      autodiff_ini_model_io: comment out writing of grid information to netcdf
14      files, because at this time the grid fields are a bunch of zeros
15      (this is analogous to ini_mnc_vars.F)
16    o pkg seaice/autodiff:
17     left-over from removing the 3-time-level fields:
18     - small rearrangement of common blocks (SEAICE.h)
19     - fix field declaration in order to get meaningful output in
20       adseaice.*.nc (adcommon.h)
21    o pkg obcs:
22     - go through NH code only if nonHydrostatic=T
23     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
24     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obcields
25       => Update output of experiment seaice_obcs
26     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
27     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
28     - fix restart for useOBCSprescribe + useEXF
29    o pkg ctrl
30     - make obcs as control parameter work also with useSingleCPUio
31     - replace a few sny and snx by Ny and Nx to be consistent with
32       ctrl_set_globfld_x/yz.F
33    o pkg seaice
34     - re-introduce global field frWtrAtm for the case of
35       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
36     - catch the case of an empty filename in seaice_cost_init_fixed.F
37    o pkg ecco:
38     - small bug fixes in the_main_loop
39      . fix order of monitor arguments
40      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
41      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
42        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
43     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
44       imbalance diagnostics for wmean_h/sflux = 0
45     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
46     - catch the case of empty filenames in ecco_cost_init_fixed.F
47       and ecco_readparms.F
48     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
49       to make this statement meaningfull in ecco_cost_weights.F
50    o pkg zonal_filt:
51      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
52      - when using rStar, filter uVel*hFacW instead of uVel
53       (tested without topography: fix a Pb of growing instability with NLFS)
54    o pkg/aim/thsice:
55     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
56      (works as SST restoring)
57    o pkg/thsice:
58     -add specific parameter for salt restoring in slab mixed-layer
59       (by default equal to the temperature restoring)
60    
61    checkpoint61v
62    o pkg/kpp:
63     -add double diffusive contributions as a hack, turned off by default
64      for now, and the code can be excluded with a CPP-flag
65      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
66     -add a verification experiments to "vermix" to test this code
67    o pkg/mom_common:
68      Move computation of length scales to mom_init_fixed.F (avoid recomputation
69      at each time-steps*levels).
70    o pkg/layers:
71      Created a new package for computing volume fluxes in temperature or
72      [not yet implemented] density layers, e.g. for calculating residual
73      overturning circulations.
74    o pkg/diagnostics:
75      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
76    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
77    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
78      To avoid mixing type (RS/RL) of input/output array argument,
79      replace single mixed-type array with a pair from each type (RS/RL).
80    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
81      is now implemented for all pkgs (previously only done for the main pickup)
82    
83    checkpoint61u
84    o pkg/obcs:
85      - change OB?eta from _RS to _RL and put them into a separate commen block
86      - add code to read OB?eta from a file via obcs_prescribe_read: the code
87        compiles and does not destroy any other experiments, the data is read
88        properly, but the code is not tested in actual applications
89    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
90      create a meaningful unit attribute for the time coordinate variable
91    o pkg/ebm: add plenty of missing "_d 0" ;
92       update results of experiment global_ocean_ebm (fwd + adjoint tests)
93      Notes: several pieces of code only works for (very) specific set up
94       (domain size, lat range, etc ...); should be documented & stop if one
95       of those assumptions is not meet.
96    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
97       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
98          and offline_exf_seaice (seaicetd + adjoint).
99    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
100       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
101        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
102    o few changes to pass when compiling with strick checking of arguments
103       across S/R (allow to find few bugs in S/R calls).
104    o pkg/seaice:
105     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
106       2d-fields, for slightly better performance
107    
108    checkpoint61t
109    o pkg/seaice:
110     - remove unused variables in seaice_evp
111     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
112    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
113       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
114       each processor opens a different file (a fix from Matt).
115    o cg2d:
116       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
117       this reduces number of EXCH calls by 2 when using exch2.
118       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
119       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
120    o pkg/thsice:
121       add code for Near Infra-Red albedo (from Jeff)
122       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
123    o ini_model_io:
124       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
125       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
126       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
127    
128    checkpoint61s
129    o pkg/exch2 (exch2_rxN_cube*):
130       remove last BARRIER (no need to synchronise after getting data from shared
131       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
132    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
133      and generate new output (for the 2 tests) using default rotationPeriod.
134    o pkg/exch2:
135      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
136        (was already the case with AUTODIFF_EXCH2 defined)
137      - add bj in exch2 arrays and S/R.
138      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
139        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
140    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
141      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
142        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
143      - verification experiment natl_box.longstep
144    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
145      allow different versions of ifort (8 or 9) and different versions
146       of mpi (mpich or mpich2) to be used with the same optfile.
147      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
148       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
149    o pkg/seaice:
150      fix previous modif (3-level field removed) for old-pickup reading
151    
152    checkpoint61r
153    o pkg/seaice:
154     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
155      1. introduce fields for time step (N-1)
156      2. do not use levels 2 and 3 anymore (but keep them)
157      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
158         includes changes to pkg/thsice/thsice_get_velocity.F,
159         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
160         pkg/obcs/obcs_apply_uvice.F.
161     - completely remove code for leap-frog time stepping for second order
162       advection
163     - adjusted adjoint accordingly;
164       gradient checks have improved by an order of magnitude!
165    
166    checkpoint61q
167    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
168     - the boundary conditions along open boundaries are unclear, because the
169       associated masks are set to zero and are thus treated as closed when
170       applying the slip-boundary conditions.
171     - move initialisation of grid variables from seaice_init_varia to _fixed
172    o adding doc/diags_changes.txt
173    o model/src:
174      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
175       to avoid "_diags" naming if no relation to pkg/diagnostics.
176      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
177       file and only call PLOT_FIELD_XYZ if debugMode=T.
178      remove few PLOT_FIELD_XY calls outside initialisation.
179      remove few unnecessary BARRIER.
180    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
181      of salt_plume package in Southern Ocean
182    o pkg/thsice:
183     - fix hOceMxL in overlap (needed for sea-ice advection);
184       update output of experiment global_ocean.cs32x15.icedyn.
185    o pkg/seaice:
186     - make the (placeholder-)tracer IceAge a little more meaningful
187      by avoiding ridging of age due to convergent ice flow
188     - add diagnostics for surface temperature, atmospheric and oceanic
189       heat flux, and atmospheric and oceanic ice growth
190    
191    checkpoint61p
192    o eesupp (global_max & global_sum):
193     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
194     - remove starting & endding barrier (no longer needed)
195    o pkg/mdsio, writelocal:
196       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
197       (remove the STOP): uses shared buffer IO to store data from all threads
198       and then let master-thread write nThreads tiles.
199    o pkg/mdsio (read/write field):
200     - tiled IO done in 1 piece (all levels at a time);
201     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
202     - multi-threaded: allow to read/write local (non-shared) array
203       (was already working with singleCpuIO ; now works also without);
204       => no longer needs barrier call after reading a file (added inside
205       mds_read/write field).
206     - move barrier calls outside gather/scatter_2d to mds_read/write_field
207    o pkg/obcs/exf
208      - exf_getffieldrec.F: add a few ". _d 0" and
209                            add code to catch the case fldperiod = 0.  
210      - obcs_precribe_read.F: change if statements so that they match
211                              the variable type (_RL)
212      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
213        exf_iprec) as part of namelist EXF_NML_01
214    o pkg/mdsio:
215      - read/write tiled (local) files: read/write 1-level tile chunk at a time
216        (instead of segment of length sNx); expected to speed up tiled IO.
217    o pkg/exch2:
218      - take buffer copy from/to array out of S/R exch2_send/recv into new
219        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
220        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
221      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
222      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
223        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
224        including Topology header file (and common blocks).
225      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
226        remove 2nd exch call in exch2_s3d_rx (no longer needed).
227      - document S/R arg. list (+ update some comments)
228    o pkg/seaice:
229      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
230        temperature and humidity over sea ice based on climatological values.
231      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
232        of LSR (this change is expected to change the results slightly because now
233        it uses slightly difference moduli from the second last LSR solution, but
234        that is more consistent with the stress computations; this part of the code
235        is not tested in the verification experiments)
236      - fix diagnostics for flux of ice in case of B-grid
237      - turn strain rates eij and press into global fields within global
238        common block in SEAICE.h for more straighforward diagnostics
239      - fix diagnostics for principal stress components, press, zeta, eta
240        to give something meaning full
241    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
242      new output (all 4 tests) using default rotationPeriod.
243    o pkg KPP:
244      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
245      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
246        and normal grid from 1 to Nr)
247    o Fix computations of L4rdt in mom_calc_visc.F
248    o eesupp:
249      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
250      should be called before a "stop" if we know that all process are going
251      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
252    
253    checkpoint61o
254    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
255    o model/src/ini_curvilinear_grid.F:
256       compute angleSin/CosC when they are not read from a file
257    o pkg/seaice:
258       add pseudo time stepping for LSOR
259    o pkg/exch2:
260       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
261    o pkg/seaice:
262       Adding separate sea ice albedo, drag coefficients, and HO in Southern
263       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
264    o SingleCpuIO:
265       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
266    o pkg/seaice:
267       put exchanged variable in (local) common block for MPI+Multi-Threads
268       to work (necessary with exch1, and for now with exch2 too).
269    o verification: to get more experiments tested with mpi, mth and mpi+mth,
270      change tiling of:
271       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
272       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
273      update output of exp:
274       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
275       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
276      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
277                       (note: output.txt generated on faulks using only 1 tile)
278    o eesupp & mdsio (SingleCpuIO):
279     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
280       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
281       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
282     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
283     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
284       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
285    o pkg/exch2:
286     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
287       read parameter file "data.exch2" if it exists; otherwise try default regular
288       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
289     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
290       with new code (not to be used, just as a backup solution).
291     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
292       in utils/exch2/input.
293    
294    checkpoint61n
295    o eesupp & mdsio (SingleCpuIO):
296      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
297        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
298        receive real*4 array (instead of real*8) to read/write 32.bit files.
299        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
300         and remove new mapping S/R)
301    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
302      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
303        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
304        when using exch2. Add S/R to map global io-buffer to global model array.
305      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
306    
307    checkpoint61m
308    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
309      and add 3 other S/R for other types (R4,R8,RS).
310      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
311    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
312     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
313     - reduce number of macro definitions (keep only those which are used);
314       can always call directly the corrresponding S/R if needed.
315     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
316       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
317     Fixed wrong type of arg in:
318       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
319       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
320     To fix: global_sum of var in common block is wrong (multi-threaded) in:
321       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
322     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
323    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
324      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
325    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
326    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
327      edges are closed (zero depth); might happen with "blank tiles";
328      for now, disabled if using OBCS.
329    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
330      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
331    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
332      to reduce length of 1.D array print in STDOUT.
333    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
334      + use 48 tiles (16x8): this will allow to test "blank tiles".
335    o start to test MPI + multi-threaded (change testreport to skip tests
336      where number of tiles do not match).
337    o genmake2: add option "-omp" to turn on Open-MP ;
338      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
339    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
340      and keep the original tile numbering. Note: compatible with old
341      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
342    
343    checkpoint61l
344    o Overlaps had been forgotten in calculating ijk keys : fixed
345    o fix cyrus makedepend for gcc 4.4
346    o experiment fizhi-cs-aqualev20:
347      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
348      and generate new output. Note: new output is much closer to the old
349      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
350      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
351    o pkg/fizhi:
352     - change to avoid indices going deliberately over array-bounds
353     - remove unnecessary MPI stuff
354     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
355     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
356       does not go over array-bounds and therefore returns reliable output.
357     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
358       this S/R has 4 output arguments, which are used inside "get_alarm";
359       when it is called with the same variable "ndum" in place of several
360       output arguments, this produces weird side effect inside "get_alarm"
361      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
362       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
363       address) and produces error.
364    o tools/gemake2: (March 27-29 2009)
365      with option "-mpi": link *_mpi files from "MODS" dir (this is what
366      testreport does).
367    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
368    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
369       update lab_sea.lsr & lab_sea.salt_plume results
370    o pkg/seaice:
371      Major overhaul of the LSOR solver: change discretization from original
372      finite differences to finite volume. The old routine is still in the
373      file seaice_lsr.F and can be turned on with the CPP-flag
374      SEAICE_OLD_AND_BAD_DISCRETIZATION
375      Along with this change, the discretization of the strain rates is changed.
376      The same flag turns on the old discretization in seaice_calc_strainrates.F
377      All verification experiments with seaice are affected (except for
378      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
379      results by setting the above flag.
380      Further changes involve changes in defaults:
381      - ALLOW_FLOODING is defined and turned on by default
382      - SEAICEadvSnow = .true. is now the default
383      - SEAICEadvSalt = .true. is now the default
384      - SEAICEadvAge  = .true. is now the default
385      - SEAICE_clipVelocities  = .false. is now the default
386                                         (as per J. Zhang's recommendation)
387      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
388        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
389      - seaice_growth: replace computation of UG by a simple copy from wspeed
390    
391    checkpoint61k
392    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
393      seaice_lsr: fixed a few metric terms,
394                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
395                  add more debugging diagnostics
396      seaice_evp: removed superfluous many metric terms of FV discretization
397                  of stress divergence
398                  affects lab_sea, lab_sea.hb87
399      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
400                  of stress divergence for non-evp solver
401                  (this part is not tested anywhere)
402      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
403                  they were effectively only half slip
404                  affects lab_sea.hb87
405      updated all relevant verification experiments (except lab_sea//output_adm.txt
406        which was left over, but fails at level 7 & 6)
407    
408    checkpoint61j
409    o pkg/seaice: turn a few hard wired parameters into run time parameters
410    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
411      time in seconds as promised by the usints in seaice_monitor and exf_monitor
412    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
413      that are not cubed-sphere grids
414    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
415    o pkg/ctrl:
416      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
417    o non-hydrostatic (calc_gw.F):
418      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
419      update output of exp. global_ocean.cs32x15.viscA4
420    o remove backward compatibility for thetaMin,phiMin
421      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
422    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
423      interpolated wind field not only for curvilineargrid=.true., but also
424      for a rotated grid (rotateGrid=.true.)
425    o pkg/exf: add capability to bypass interpolation for runoff
426      by setting yet another CPP-flag
427    o eesupp/src, B-grid exchange:
428      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
429    o autodiff
430      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
431      allows to switch to single-prec common blocks;
432      corresponding switch occurs in tamc.h, integer isbyte
433      TAF store directivs "byte" and "kind" seem equivalent;
434      Most tamc.h have been updated correspondingly.
435    
436    checkpoint61i
437    o autodiff:
438      fix autodiff_sore/_restore indices for obcs
439      (spotted by I. Hoteit, M. Mazloff)
440    o pkg/autodiff, pkg/ctrl:
441      Add flag to reduce all tapelev I/O to single-prec.
442      In data.ctrl set
443        doSinglePrecTapelev = .TRUE.
444    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
445      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
446    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
447      real fresh water flux (not yet)
448    o pkg/mdsio & rw:
449     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
450     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
451    o pkg/flt:
452     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
453       init_fixed & ini_varia.
454     - clean-up & simplify linear interpolation S/R:
455       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
456     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
457     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
458     - add vert. coordinate & horiz. indices to output files.
459     - change vertical position in initial condition, from index to depth [m].
460     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
461       (easier to get to a curvilinear grid) ; delX,delY no longer used.
462    o pkg/ggl90: a few modifications:
463     - fix bottom boundary condition, and interpolation of KappaE
464       near top and bottom
465     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
466     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
467     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
468    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
469      (maintain temporary backward compatibility, until next checkpoint)
470    
471    checkpoint61h
472    o pkg/diagnostics with "periodic averaging diagnostics":
473      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
474    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
475    o pkg/obcs: fix loop ranges for balancing code
476    o pkg/flt:
477     - improve criteria for finding which tile owns a float.
478     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
479    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
480      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
481      with ocean biogeo)
482    o pkg/flt:
483     - do some cleaning and fix the restart ;
484     - add output.txt in flt_example/results to get this pkg tested.
485    o genmake2: add an EXTENDED_SRC option and flag.
486       for now, cannot be turned on on command line (only through genmake_local)
487    o pkg/mdsio: read/write vector:
488     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
489     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
490       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
491     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
492      (drop to 4 digits matching for grad). But this test does not look very
493      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
494    
495    checkpoint61g
496    o pkg/flt:
497      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
498       + make OPTIONS file more standard.
499      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
500      - fix _BYTESWAPIO CPP-Flag
501      - standard reading of file-parameter "data.flt"
502      - fix argument list of S/R FLT_RESTART
503      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
504    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
505    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
506      a still unfixed compiler/optimization bug
507    
508    checkpoint61f
509    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
510      update results of global_ocean.cs32x15.icedyn test.
511    o move getcon.F from model/src to pkg/fizhi.
512    o pkg/exf: add parameter for extrapolation of temp up to the surface
513       and option to prevent negative evap (in bulk_largeyeager04 only).
514    o Prather Advection scheme: fix tracer conservation for divergent flow
515      (e.g., when using NonLin Free-Surface).
516    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
517    o gmredi (Visbeck-variable-K):
518     - add more parameters to Visbeck-variable-K.
519     - use a 5 points average for dSigmaR in Visbeck-K calculation
520       (more "homogenous": same stencil and same weights as in dSigmaH)
521     - update output of ideal_2D_oce experiment.
522    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
523      (#undef REAL4_IS_SLOW)
524     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
525       coordinate variable
526     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
527       (surface forcing fields), removes some of the functionality
528     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
529     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
530       probably not all: copy _RS surface flux fields to RL field before
531       calling DIAGNOSTICS_FILL
532     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
533       real*4 (CALL EXCH_*_RS) versions.
534     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
535       (generate new output).
536    
537    checkpoint61e
538    o gmredi (Visbeck-variable-K):
539      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
540      - change computation of Visbeck-K where Slope > Smax :        
541        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
542        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
543    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
544      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
545    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
546    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
547      does not become too large (to avoid precision problems in implicit-diffusion
548      solver); update ideal_2D_oce output.
549    o pkg ggl90:
550      - in ggl90_cal.F: compute only one set of visc/diff, used to
551        step forward TKE/T/S/momentum
552      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
553        have Prandlt =1)
554    o gmredi (fm07):
555      - add lower limit on Transition layer thickness + lower limit on 1/lambda
556      - allow to set few more params from data.gmredi
557    o pkg ggl90:
558          - add missing sqrt(2) factor in computation of mixing length
559            scale in ggl90_calc.F
560            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
561    
562    checkpoint61d
563    o adjoint modifs
564      - adapt to new field rhoInSitu
565      - allow to revert from StoreDynVars2D, StoreDynVars3D
566        to individual fields
567        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
568    o store 3-D (in-situ) density in commom block (DYNVARS.h)
569     - save 1 rho computation.
570     - no longer modify T & S inland when using down_slope pkg.
571    o gad_som : allow to switch to SOM advection for T & S without corresponding
572      pickup files (using new S/R: MDS_CHECK4FILE).
573    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
574      (for useSingleCpuIO to work in multi-threaded)
575    o pkg/shelfice:
576     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
577       with SHELFICEtopoFile in data.shelfice
578     - move code for reading ice shelf topography and modifying hFacC into separate
579       subroutines of the shelfice package
580     - separate initialisation of "fixed" and "variable" variables
581     - kTopC is not (yet) replaced by kSurfC, although this is possible
582    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
583    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
584      and rename:
585      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
586      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
587    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
588    
589    checkpoint61c
590    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
591      to add mass source/sink of fluid in the interior (3-D generalisation
592      of oceanic real-fresh water flux).
593    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
594    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
595    o new pkg: down_slope
596      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
597      - presently, modify T & S inland (dwnslp_calc_rho.F).
598        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
599      - implementation for ocean in P-coords not tested.
600      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
601    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
602      (to facilitate conversion of oceanic pkg to p-coordinate).
603    o change FIND_RHO to FIND_RHO_2D :
604      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
605    o new pkg: cheapaml
606    
607    checkpoint61b
608    o exch2:
609      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
610      - no longer depend on the order sequence (N,S,E,W).
611      - 3rd exchange no longer needed (tested with 24 tiles).
612      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
613      - exch_UV_A-grid readily available (but not yet tested).
614      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
615      (both are no longer needed) in exch_uv: no effect in forward run; but
616       get truncation error differences with adjoint exch.
617    o exch2:
618     - change index-bounds storage (moved from target to local tile,
619       more intuitive this way) ; rename/remove some variables.
620     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
621    
622    checkpoint61a
623    o exch2/matlab-topology-generator:
624      fix bug in index bounds for N-S internal exchange (hard to tell if this
625      had any effect on the solution).
626    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
627      is exceeded
628    o testreport: modify syntax of awk, so that it works also with
629      awk, and not only with nawk and gawk
630    
631    checkpoint61
632    o autodiff
633      Change default for TAF usage by removing argument '-nonew_arg'
634      This changes TAF subroutine argument list (ordering of active var.)
635      Omission of this flag leads to incompatibility w.r.t. TAMC
636      To restore TAMC-compatibility, need following modifs:
637      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
638      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
639      Tested TAF version is 1.9.22
640      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
641    
642    checkpoint60
643    --->>> This is the last checkpoint for which generating the adjoint
644    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
645    --->>> by default.
646    --->>> Future checkpoints will ommit this flag by default.
647    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
648    o pkg/grdchk: Add gradient check to etan0 perturbations.
649    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
650    o pkg/autodiff: more flexibility in zeroadj.
651      model/src: modifying do_oceanic_phys.F accordingly.
652    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
653    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
654      special setup of gmredi for which the adjoint is stable
655      enough for parameter optimization.
656    o bridging the gap between eddy stress and GM.
657      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
658          along with a change in CPP option (now ALLOW_EDDYPSI).
659      -> when using GM w/ GM_AdvForm:
660          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
661          is applied either in the tracer Eq. or in momentum Eq.
662          depending on data.gmredi (intro. GM_InMomAsStress).
663      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
664      The key modifications are in model/src/taueddy_external_forcing.F
665      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
666    
667    checkpoint59r
668    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
669      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
670      fix option to read coriolis(@ cell-corner) from files with CS-grid.
671    o pkg/mnc: add some attributes to standard 1D-coordinate variables
672    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
673      mass points, when using mnc for output
674      - add runtime parameter (missing_value, missing_value_int) to override
675        default (which is the value of getcon('UNDEF'))
676    o pkg/mnc: prepare mnc for the actual use of missing values with the
677      diagnostics package: small fix in mnc_cw_readwrite.template and more
678      initialisation of never used fields
679      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
680      versions
681    o pkg/thsice/thsice_ini_vars.F added default initial values so that
682      thermodynamics sea ice solver does not blow up when some initial fields
683      are missing.
684    o move from external_forcing_surf.F to ini_forcing.F
685      the p-coord. hack consisting in using pLoad to set phi0surf ;
686      update output of tutorial_global_oce_in_p (affected @ truncation level).
687    o Freshen up a bit hs94.1x64x5, notably:
688      remove rotationPeriod and tRef=5*0. (adjoint only), and add
689      exactConserv=.TRUE.
690    o pkg/generic_advdiff:
691      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
692      applies to files where Temperature & Salinity 2nd Order moments are used.
693    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
694      this uses a dynamically allocated internal state data structure
695      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
696      and requires a fortran 90 compiler
697    
698    checkpoint59q
699    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
700       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
701    o Refresh tutorial_global_oce_biogeo, notably:
702      - change bathymetry (put back seamounts in ACC, use hFacs)
703      - change EOS (POLY3 --> JMD95Z)
704      - use Bryan-Lewis vertical diffusivity
705      - use multidimensional advection
706      - remove old virtual virtual in dic pkg, now done through ptracer pkg
707      - change a couple of parameters in dic pkg
708    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
709    o pkg/obcs: change default to OBCSfixTopo = .true.,
710      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
711      - replace "debugMode" with "debugLevel .GE. debLevB"
712    o implementation of TAF directives for gchem,cfc,dic
713    o remove "exp5" (replaced by tutorial_deep_convection).
714    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
715      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
716      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
717      --> changes results in exp4, seaice_obcs
718    o tutorial_deep_convection :
719      update the set-up and increase resolution and domain size ; start
720      from pseudo initial conditions = output at t=120mn in order to see
721      something happening when running testreport.
722    o pkg/seaice: add os7mp as an advection scheme
723                  add check for advection schemes
724                  add a flag for restoring T and S underneath sea ice
725    o pkg/my82: add netcdf-support and diagnostics
726    o thsice pkg:
727      - Now hsMax limits snow height by turning it into ice following
728        flooding scheme (and now conserving energy)
729      - Slight rewriting of the formula in thsice_calc_thick.F
730      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
731      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
732    
733    checkpoint59p
734    o gchem / dic / cfc :
735      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
736      - add new parameter files: "data.dic" & "data.cfc" ;
737      - various re-arrangement in initialisation & header file ;
738      - fix tutorial_global_oce_biogeo for multi-threaded test.
739    o pkg/dic: test for "pickup_dic" file when restarting ;
740      if no pickup-file, can restart with a re-initialised pH (same as it did
741      before) providing pickupStrictlyMatch is set to False.
742    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
743      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
744    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
745      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
746    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
747     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
748       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
749    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
750       scheme to use for vorticty-term ;
751     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
752       (with default selectVortScheme, return to original discretisation)
753     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
754    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
755    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
756      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
757      also fix diagnostics VISCAHW & VISCA4W.
758    
759    checkpoint59o
760    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
761    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
762      move a few statemens out the main loop into separate loops
763    o pkg/shelfice:
764      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
765        (kg/m^2/s), does not break tests, because in verification/isomip,
766        rhoConstFresh=rhoConst (by accident)
767      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
768      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
769        new file model/src/seawater.F, so that they are available for all pkgs.
770      - convert potential temperature into in-situ temperature. This changes the
771        isomip tests => update tests
772    o add a flag writePickupAtEnd (default=true) to be able to suppress
773      writing a pickup at the last timestep
774    o tools/mpack-1.6 :
775      - disable automake (not working) and autoconf (not needed).
776      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
777        also cleaner with much less compilation warnings.
778    o pkg/profiles:
779      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
780      (for "less than 32 characters name" compiler requirement)
781    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
782      conditions that have a different sampling frequency than S/T/U/V obcs
783    o pkg/diagnostics (stats-diags):
784      - fix global Min/Max in case 1 processor get only empty tiles
785    o genmake2: replace (4 times)
786         make genmake_tc_1.o >> genmake_warnings 2>&1
787      with
788         COMM="$CC $CFLAGS -c genmake_tc_1.c"
789         echo $COMM >> genmake_warnings
790         $COMM >> genmake_warnings 2>&1
791      to make genmake2 always see the value of CC as specified in the optfile.
792    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
793      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
794      - modify verification advect_cs test to test SOM-advection on CS-grid.
795    o pkg/ctrl:
796      - Rewrite of ctrl_map_ini_ecco.F,
797        introducing a generic routine (ctrl_map_ini_gen.F).
798      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
799    
800    checkpoint59n
801    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
802      number in dedicate array "hdiag":
803      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
804        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
805      - many small changes (integer format) for large number of diagnostics
806      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
807        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
808    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
809      usingSphericalGrid, this allows to define the rotated grid coordinates
810      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
811      geographical coordinates according to the inverse of the rotation defined
812      by the Euler angles, so that Coriolis parameter and online-interpolation by
813      exf works with the geographical coordinates on XC/YC/XG/YG.
814      Naturally, this feature does not work with all packages, so some
815      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
816      profiles), because there the coordinates are assumed to be regular
817      spherical grid coordinates.
818    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
819      - introduce isopycnal diffusion coefficient control.
820    o tools/adjoint_options:
821      - additional control vector components.
822    o pkg/mnc: have mnc create marginally meaning full coordinate variables
823      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
824    o pkg/mypackage:
825      - add example of read/write pickup for state-var ;
826      - add entry points to the main code for state-vars diags & write-pickup.
827    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
828      transitions for useExfYearlyFields
829      - add new subroutine that determines the file to read from for
830        use*YearlyFields = .TRUE. and .FALSE.
831      - add a verification experiment to global_with_exf that tests
832        useExfYearlyFields with USE_EXF_INTERPOLATION defined
833    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
834      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
835      subroutines (which could be generated from a template, because they are
836      almost identical), for now they are included in obcs_prescribe_read.F for
837      simplicity
838    o pkg/exf:
839      - add a little more diagnostic to exf_interp_read (in analogy to
840        mds_read_field, can be turned off with debugLevel < debugLevA=1)
841      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
842        ugly but fast by unrolling short inner loops, inserting a unroll=8
843        directive in routine lagran, and splitting a loop and making do while the
844        outermost loop (the latter requires the intoduction of index arrays)
845    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
846    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
847      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
848    o verification/seaice_obcs: updated for restart test and latest options
849    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
850      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
851      for now this is only available for the C-grid code and also within
852      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
853    
854    checkpoint59m
855    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
856      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
857    o gad_som : fix flux output (& diagnostics) to have same units as other  
858      advection scheme fluxes (was previously multiplied by deltaT).  
859    o added verification/seaice_obcs both to test seaice open boundaries
860      and to provide an example matlab scrpt for generating them
861    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
862    o pkg/salt_plume: clean up salt_plume_frac.F to
863      remove redundancy in PlumeMethod 1 and 4
864    o pkg/kpp: added saltplume diagnostics
865    o pkg/obcs and pkg/seaice:
866      - do not set uice and vice to zero when OB*icefile are unspecified
867      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
868      - moved seaice tracer obcs after call to seaice_growth
869    o pkg/salt_plume: added various options for salt plume depth
870      criterion and for vertical distribution of the salt
871    
872    checkpoint59l
873    o pkg/ptracers: new version of ptracers pickup:
874      read meta file and write only fields which are needed to restart.
875      ( same logic as main pickup file ; also using pickupStrictlyMatch )
876    o pkg/seaice:
877      - add timescale for melting due to warm mixed layer as a means of
878        setting SEAICE_availHeatFrac more conveniently
879      - add a CPP-flag/runtime parameter check for flooding algorithm
880      - reformulated availHeat in seaice_growth.F to be independent of AREA
881    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
882      unit changes
883    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
884    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
885      SX vector computer.
886    o pkg/seaice:
887      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
888        seaice forcing fields can now be read only through pkg/exf
889      - removed some unused halos
890    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
891    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
892      or U/VICE from U/VWIND before computing U/VSTRESS
893    
894    checkpoint59k
895    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
896      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
897    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
898      all experiments pass when compile with un-initialised var. checking option.
899    o added pkg/salt_plume
900    o script to test restart (for now, in MITgcm_contrib/jmc_script)
901    o pkg/seaice: new read/write pickup version.
902      read meta file and write only fields which are needed to restart.
903      ( same logic as main pickup file ; also using pickupStrictlyMatch )
904    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
905    o lab_sea.hb87: modify the domain & update output.hb87.txt :
906      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
907      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
908      process. Fixed here by closing the domain at the Northern boundary.
909    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
910    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
911      a set of consecutive levels in/from a 3-D array.
912    o pkg/ptracers:
913      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
914      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
915    
916    checkpoint59j
917    o in pkgs: dic, obcs, offline, rbcs:
918      standard way to compute coeff. for time interpolation between 2 time reccords
919      which retains full precision (& make results less dependent on compiler).
920      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
921    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
922      packages instead of reading ice cover and wind speed separately
923    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
924     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
925      to allow to compile customized code before the update)
926    o cleaning-up:
927      - fix CPP instruction syntax in pkg/obcs
928      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
929        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
930      - fix some threads issue in IO parts.
931    o pkg/dic:
932      - add tons of "_d 0" (--> much better testreports !)
933       and then update outputs of tutorial_global_oce_biogeo
934    o pkg/mom_fluxform:
935      add a special version of momentum advection intended to conserve momentum
936      next to a bathymetry step or a coastline edge. (default = off = #undef)
937    o new read/write pickup version:
938      - for now, only implemented for main (mdsio) pickup file.
939      - write out only what is needed to restart; merge pickup_nh , pickup_ph
940        and main pickup together.
941      - read meta file; read only what is needed to restart; stop if a field
942        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
943        if it make sense (even if the restart is not perfect).
944      - if no meta file, assume that pickup to read corresponds exactly to
945        a pickup that would currently be written.
946      - read pickup written in the old format (until checkpoint59i) if it
947        recognizes an old meta file (no field-list).
948      - add a meta file in exp. which starts from a pickup: 2 cases:
949        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
950         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
951        b) a meta file describing the content of the associated pickup file
952         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
953    o pkg/mdsio & pkg/rw:
954      - new routine to read a meta file ; new set of routine to read
955        Multiple-fields file (with meta file).
956    o added open boundary conditions capability for seaice
957        HSNOW, HSALT, UICE, and VICE
958    
959    checkpoint59i
960    o adjoint:
961      * fix multiDimAdvection adjoint
962        (partial recomputation problem by TAF for fVerT(:,:,kDown)
963        and comlev1 size definition (maxpass vs. max. number of tracers)
964      * verification/global_ocean.90x45x15 adjoint now tests
965        NLFS and multiDimAdvection using DST3 (=30)
966      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
967    o pkg/kpp: add "_d 0" to real constant (if missing);
968      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
969      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
970    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
971      for internal parameters related to restart process (formerly from PARAMS.h)
972      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
973    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
974      as argument. (only atm2d & obcs write_pickup have not yet been updated)
975    o pkg/monitor:
976      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
977      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
978      - account for deep Atmosphere factor and density factor (anelastic)
979    o added open boundary conditions capability for seaice HEFF and AREA
980    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
981      thermodynamics
982      - requires a little reorganization, which affects the testreport results
983        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
984        so that now the conservative form is tested
985      - add a few comments
986    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
987    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
988    o add new diagnostics to seaice: advective, diffusive fluxes (only for
989      multidim-advection, for scheme 2 they are not filled) and transports,
990      thermodynamic growth rates
991    o change units of EmPmR (inside the code, + within coupling interface)
992      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
993      Affects results @ truncation level (cg2d match) and update output of
994       experiments: lab_sea(6), global_ocean.90x40x15(10),
995      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
996      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
997      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
998      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
999    
1000    checkpoint59h
1001    o pkg/exf:
1002      - improve vectorization by moving if-statement out of loops in
1003        exf_mapfields, exf_radiation
1004      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1005    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1006    o testreport:
1007      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1008        monitor & update offline_exf_seaice exp. output.
1009      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1010    o pkg/seaice:
1011      - bug fix in the evp solver: boundary conditions were affected be
1012        masking of zMax/zMin (changes results)
1013      - minor bug fix in boundary conditions in seaice_calc_strainrates
1014        (changes results for no_slip)
1015      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1016      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1017      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1018        stress formulation and no-slip boundary conditions
1019    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1020      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1021    o pkg/seaice: a first HSALT time stepping equation has been checked in
1022    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1023      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1024      without requiring DO-IF statements
1025    o pkg/thsice:
1026      use continuous power-law function for partition of energy between lateral
1027      melting/freezing and thinning/thickening ; old code using step function
1028      still available with #undef THSICE_FRACEN_POWERLAW
1029      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1030    o testreport: change AD testing : check against results/output_adm.txt
1031      using same scripts as for forward test.
1032    
1033    checkpoint59g
1034    o adjoint testing: in preparation for changing testreport:
1035      - output format: cost and grad written on separated lines
1036      - ad output results in directory "results" (instead of "results_ad")
1037    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1038    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1039    o pkg/ecco: allow user defined cost function contributions
1040    o testreport:
1041      Allow to choose (per experiment) the list of tested output variables
1042       and the main variable (used to issue a pass/FAIL ) ;
1043      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1044      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1045      Also modify printing of summary:
1046       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1047       b) echo the list of tested variables in the individual summary.txt of
1048          each experiment.
1049    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1050      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1051      (but still depend on the tile decompostion of the domain).
1052    o pkg/seaice: change a discretization detail to make the B-grid code
1053      "more symmetric". This change is likely to remove all "ridges/leads" that
1054      where quasi-aligned with the grid in B-grid solutions. It may also be
1055      the solution to the stress coupling issues with the B-grid.
1056    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1057      remove .cvsignore from input dir. (since testreport no longer run here).
1058    o pkg/thsice:
1059     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1060     - fix reshaping of sea-ice just after advection:
1061       melt all the ice only if ice-volume is too small.
1062     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1063       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1064     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1065    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1066      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1067    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1068      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1069      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1070      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1071      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1072      -> update output.txt
1073    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1074     this affects truncation error: -> update output.txt of exp:
1075      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1076      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1077    
1078    checkpoint59f
1079    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1080    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1081      a bounded range (in forward mode)
1082    o pkg/ecco, ctrl, autodiff and mom_common:
1083     internal parameter controls, completements of implementations
1084    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1085    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1086      (not seem any difference in testing results).
1087    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1088       at face corners.
1089    o pkg/generic_advdiff:
1090     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1091      loop range indices for computing vertical advection tendency
1092      and do the calculation in the interior only (no overlap) ;
1093      for now, only implemented for SOM advection (to save CPU time).
1094     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1095    o exch2 adjoint
1096      First set of changes:
1097      - add exch2 hand-written adjoint templates
1098      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1099        This will require cleanup in pkg/autodiff/*.F
1100        (changed routines currently kept separate in verif. code/)
1101      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1102        that used to hide exch2 or cubed-sphere specific code
1103        (commented via 'cph-exch2')
1104    o pkg/seaice
1105      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1106    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1107       output of global_ocean.cs32x15.thsice .
1108    
1109    checkpoint59e
1110    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1111      for B-grid vector (not yet tested) and C-grid vector (<- only used
1112      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1113    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1114      (#ifdef ALLOW_SALT_PLUME)
1115    o gather_2d/scatter_2d: removed halo regions
1116    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1117      scheme and the corresponding test case (under front_relax dir). For now,
1118      only available with Skew-flux form and not yet tested in realistic set-up.
1119      adjoint: store directives updated, but gradient checks deteriorated,
1120      so maybe GM/Redi adjoint is now broken.
1121    o seaice adjoint
1122      * add AREA, HEFF, HSNOW as control variable
1123        (should not change lab_sea results)
1124      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1125    o pkg/seaice:
1126      * added computation of saltFlux in seaice_growth;
1127        For time being, sea ice salinity is assumed constant
1128        contribution of snow flooding to freshening of sea ice is neglected.
1129        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1130        defaults to 0.0 in order to maintain backward compatibility.
1131        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1132      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1133      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1134        heat content used to melt or grow ice
1135      * commented out cap of HICE: it helps keep ice thinner
1136      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1137      * applied OBCS T/S mask to HEFFM sea ice mask
1138    
1139    checkpoint59d
1140    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1141     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1142     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1143    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1144     and change default value of parameter "GM_Small_Number";
1145     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1146       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1147       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1148    o pkg/ecco: cost function when applying pkg/smooth to controls
1149    o pkg/ctrl: add forcingPrecond run time parameter
1150    o pkg/seaice:
1151     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1152     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1153       changes verification/lab_sea
1154     - rearrange implicit part of u-equation in LSR solver to make it easier to
1155       read, understand, and debug. This causes changes at the truncation level.
1156     - fix (serious) bug in the boundary conditions (sign error in the implicit
1157       part) of the LSR solver. Changes all LSR results.
1158     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1159       is initilized with small values - does not change lab_sea results.
1160     - added HsnowFile initialization capability
1161    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1162     initialization of pkg/smooth and application to control vector
1163    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1164    o dependencies: pkg/profiles requires pkg/cal
1165    o pkg/profiles:
1166     - added option ALLOW_PROFILES_GENERICGRID
1167         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1168         that interpolation information (grid points and coefficients) is provided
1169         within the netcdf input files.
1170         -> sample matlab scripts can be found in MITgcm_contrib/gael
1171         that allow you to prepare netcdf input files.
1172     - also modified: cleaner include statements, cleaner error print statements,
1173       cleaner stops when error, and more tests of the netcdf input files consistency.
1174    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1175    o pkg/seaice:
1176     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1177       requires a new routine: seaice_diagnostics_fill.F
1178     - make sure that seaice does not move if not forced (pressure replacement
1179       method, Hibler and Ip, 1995), changes results
1180     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1181     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1182       It is turned off by default (=-1.), because it changes the results.
1183     - make it possible to read AREA from a file, too.
1184    
1185    checkpoint59c
1186    o add S/R and diagnostics for oceanic mixed-layer depth
1187    o move GMRedi call after all vertical mixing schemes (including KPP)
1188    o pkg/thsice:
1189     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1190      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1191    o pkg/obcs:
1192     - bug fix for balance code
1193    o pkg/seaice:
1194      - allow values of SEAICE_elasticParm > 1
1195      - add new parameter SEAICE_evpTauRelax as an alternative
1196        to SEAICE_elasticParm
1197      - make lsr boundary conditions free slip (by default), changes result
1198      - add code for no slip boundary conditions for lsr
1199      - set minimum of zeta to zero (and not 4e8) (changes results)
1200      - add a cap on AREA after advecting AREA if seaice_growth is not called
1201    o change calculation of Visbeck K:
1202      - no longer depend on tapering scheme; instead, compute slope (limited
1203        by GM_maxSlope). this is equivalent to what was comuted before with
1204        clipping or linear tappering.
1205      - fix vertical averaging (wrong by 1/2 level)
1206      - leave the old version (but will not be maintained) within
1207        #ifdef OLD_VISBECK_CALC / #endif
1208      - update output of exp. ideal_2D_oce
1209    o change error catch in calc_r_star to improve vectorization
1210    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1211      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1212    o adjoint:
1213      Re-organized adjoint checkpointing according to Matt Mazloff
1214      (but with modifs/completions/cleanups)
1215      Storing is now bundled into large arrays to optimized I/O
1216      (and second step in cleanup of the_main_loop)
1217    
1218    checkpoint59b
1219    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1220      - export/import (between ocean & coupler) fields needed for ocean DIC.
1221    o pkg/seaice:
1222      - get rid of three more exchanges seaice_calc_viscosities (required
1223        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1224      - bug fix in seaice_ocean_stress (update of lab_sea required)
1225      - reduce loop boundaries to necessary minimum also in seaice_evp
1226      - go back to the old way of computing deltaC/Z as the adjoint likes that
1227        better
1228    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1229      passive tracer to an Age Tracer) + update output.txt
1230    o pkg/exf:
1231      - implement A-grid / C-grid selection for wind-stress input files.
1232      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1233      for now, in exf_bulk_largeyeager04.F only :
1234      - change implementation for case where windspeed + 2. components wind-stress
1235        are read-in. AND use rhoConstFresh to convert evap.
1236    o pkg/seaice:
1237      - use correct EXCH_UV for wind-forcing (on A-grid).
1238      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1239        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1240    o pkg/exf:
1241      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1242      EXF_INTERPOLATION:
1243      - merge global_with_exf/code version of exf_interp_read.F
1244        to the main code ;
1245      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1246        reading the file ; Important: This options needs to be defined to recover
1247        previous code.
1248        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1249      - no longer loose real*8 precision along the way when using exf_iprec=64.
1250    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1251      - change discretisation of evp-solver in order to avoid another exchange
1252        (changes lab_sea) and clean up a little
1253      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1254        help the adjoint (this also changes the results slightly)
1255      - add a few "_d 0" where they had been missing in seaice_evp.F
1256      - cleaning up: remove unused seaice_calc_rhs.F
1257    o pkg/exf: some cleaning-up:
1258      - change various "constants" into runtime parameters
1259      - cleaned-up Large&Yeager04 routine which should eventually
1260        replace exf_bulkformulae.F (changed names of S/R and CPP)
1261        and merged various ALLOW_ATM_WIND options
1262     only used with thsice pkg (in thsice_get_exf.F):
1263      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1264        which are used when useStabilityFct_overIce=TRUE (= the default)
1265      - change default values of ice & snow emissivity and scale downward LW
1266        by ice & snow emissivity.
1267    o pkg/thsice:
1268     fix few little problems, in thsice_calc_thickn.F:
1269      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1270      - melt only laterally if hIce < hThinIce (as the comments say)
1271      and in thsice_extend.F:
1272      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1273      - start to form ice as soon as the minimum ice-volume is reachable.
1274     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1275      and cpl_aim+ocn
1276    o pkg/kpp
1277     - move computation of surface related input fields to KPP into a new
1278       subroutine kpp_forcing_surf.F
1279     - remove wrong (within bi,bj loops) EXCH calls.
1280     - little cleaning (add argument myThid in last position, cvs header ...)
1281     - for now, fix conservation problem by exchanging KPPviscAz (may not
1282       be the best fix)
1283    o pkg/seaice
1284     - check for inconsistent evp parameter/cpp-flag combination
1285     - remove leftover errIO flat for obsolete name list error handling
1286    o OpenAD
1287     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1288    
1289    checkpoint59a
1290    o pkg/seaice: some parameter clarifications and a little bit of clean up
1291    o pkg/thsice: rename run-time parameters:
1292       himin       -> hIceMin
1293       himin0      -> hThinIce
1294       hihig       -> hThickIce
1295       i0          -> i0swFrac
1296       transCoef   -> bMeltCoef
1297       frac_energy -> fracMelting
1298      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1299       with default values (for now) that do not change the results.
1300      remove old version of thsice vars advection in pkg/seaice.
1301    o in FFIELDS.h:
1302      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1303      - make pLoad & sIceLoad always available (but still only used if
1304         ATMOSPHERIC_LOADING is #define).
1305    o pkg/kpp: replaced _KPP_RL with _RL
1306    o bug fixes for vertical diffusivity computations when both KPP and
1307        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1308        are no longer updating the vertical diffusivity array
1309        (passed as argument) but are (re-) setting those arrays.
1310    o pkg/seaice: fix bug in evp solver, while doing that
1311      - change (improve?) discretization of stress computations for both
1312        cgrid-lsr and evp solver
1313      - add a new routine to compute strain rates
1314      - the above changes lab_sea results
1315      - add no slip conditions for evp solver (off by default), lsr-version
1316        may follow
1317      - fix exchange for shear at Z-points (does not change lab_sea)
1318      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1319        (to force the user to pick a time step since there is not "safe" way
1320        of choosing it)
1321      - add principal stress diagnostics
1322      - rearrange fields for evp a little to avoid having to call a: too many
1323        exchanges and b: exchanges for stress trensor components which we do
1324        not have.
1325      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1326        of evp, complete rewrite for lsr case (latter is does not yet work
1327        in all cases)
1328    o pkg/kpp: add code to have mixing in shelf ice caverns
1329      - add myThid to all kpp routines (long overdue)
1330    
1331    checkpoint59
1332    o pkg/exf:
1333      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1334        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1335      - move exf header files from lower_case.h to UPPER_CASE.h ;
1336        add missing cvs Header & Name
1337      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1338      - add namelist param. selectStressGridPosition, exf_monFreq
1339      - retire many _CLIM routines, and remove data.exf_clim
1340        + params moved to data.exf
1341        + climsst, climsss now handled by exf_set_gen, i.e.
1342          climss?period=0 refers to constant field,
1343          climss?period=-12 to monthly forcing
1344      - split up namelists in data.exf
1345    o pkg/seaice:
1346      - remove seaice_exch and seaice_exch_uv
1347      - remove superfluous exchange of theta
1348      - add myThid to seaice_budget_ocean/ice
1349      - add new interface for atmospheric wind forcing (C-grid only)
1350        + new routine
1351        + two new field (taux, tauy for stress over ice)
1352        + removed one global field (DAIRN) for C-grid case only
1353    o pkg/thsise
1354      - 2nd set of modifs for thsice adjoint in conjunction with exf
1355    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1356    
1357    checkpoint58y_post
1358    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1359      vertical diffusivity, similar to that in MOM4; turned on using
1360      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1361      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1362    o Added capability for 3D specification of background vertical diffusion
1363      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1364      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1365      "data" file that contains the 3D vertical diffusivity coefficients.
1366    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1367      - add code within pkg thsice to advect & diffuse sea-ice fields
1368      similar to (and will replace) what has been added in  seaice_advdiff.F,
1369      but: - conserving Mass, Heat & Salt.
1370           - better when using non-linear advection scheme (not yet fully tested)
1371           - can also be used in atmospheric set-up (for now, only the diffusion).
1372    
1373    checkpoint58x_post
1374    o IO option for global-file compact format:
1375      - add options when generating topology (utils/exch2/matlab-topology-generator)
1376      - add I/O capability (pkg/mdsio).
1377      - adapt utils/matlab/rdmds.m to read this format.
1378      for now long-line format not yet supported by pkg/mdsio (& exch2).
1379    o shelfice: add a few diagnostics
1380    
1381    checkpoint58w_post
1382    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1383      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1384      (and replace horiVertRatio in NH code).
1385      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1386                         and tutorial_plume_on_slope (sensitive to truncation)
1387    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1388      directly to drive seaice model (C-grid only)
1389    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1390     - reintroduce computation of wind from stress,
1391     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1392       mass points to avoid tau = 0
1393     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1394    o rdmnc.m: make it work with "global" files created with gluemnc
1395    o rdmnc.m : some improvements in dealing with singleton dimension
1396      (tested on all testreport mnc output files).
1397    o genmake2: disable pkg/profiles if netcdf test fails.
1398    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1399    o move call to cal_readparms up to make calendar parameters/variable available
1400      to all packages
1401    
1402    checkpoint58v_post
1403    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1404      useDynP_inEos_Zc tested.
1405    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1406    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1407      and portions thereof.  See read_cs.txt for description and examples.
1408    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1409      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1410      following the great-circle arc between those 2 points.
1411    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1412      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1413    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1414     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1415     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1416     - still needs work (not working with some options ; efficiency to improve)
1417       and serious testing.
1418     - use this scheme for temperature & salinity in 2 advection test exp.:
1419       advect_xy & advect_xz, respectively.
1420    
1421    checkpoint58u_post
1422    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1423    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1424    o testreport: add option "-skipdir" to skip some test.
1425    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1426      momentum calculation.
1427    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1428    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1429      remove checkpoint.F and the_correction_step.F (no longer used);
1430      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1431    o add option (linFSConserveTr) to correct for tracer source/sink due to
1432      Linear Free surface
1433    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1434    o pkg/thsice: fix reading mnc-pickups
1435    
1436    checkpoint58t_post
1437    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1438    o pkg/mdsio:
1439     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1440       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1441       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1442     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1443     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1444       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1445     - new S/R (to replace MDSWRITEMETA), which allows to write more
1446       informations (variable names, time ...) to meta files.
1447     - modify rdmds.m to give back the meta file content.
1448    o pkg/diagnostics: change vertical interpolation to be safer, and more
1449       flexible (define p-levels to interpolate to in data.diagnostics);
1450      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1451       diagnostic pointer.
1452    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1453    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1454    o fix multi-category seaice:
1455     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1456       SEAICE_MULTICATEGORY
1457     - fix short wave heat flux
1458    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1459       and allow to use EVP solver. Change forward lab_sea: test both EVP
1460       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1461    o Initial check-in of lab_sea adjoint
1462      (very similar to natl_box_adjoint/code_seaice)
1463      * used C-grid and EVP solver
1464      * used KPP, GM/Redi
1465      * uses inAdExact=.TRUE.
1466      * gradient checks fail for both ADM and TLM
1467        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1468        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1469        issue is related to forward mismatch between g77 an ifort
1470    o pkg/seaice: overhaul of thermodynamics
1471     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1472     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1473     - move a few global fields out of SEAICE.h into seaice_growth.F and
1474       make them 2D (FICE/QNETO/ ...)
1475     - remove FO (it is the same as QNETO)
1476     - introduce a few local fields to avoid modifying external fields such
1477       as atemp, etc.
1478    
1479    checkpoint58s_post
1480    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1481      changed exf_set_gen.F so that
1482        genperiod=0 means input file is one time-constant field and
1483        genperiod=-12 means input file contains 12 monthly means
1484    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1485      this affects truncation error ; generate new output file for exp. which
1486      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1487        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1488        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1489        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1490        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1491        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1492    o start implementation of deep-atmosphere and anelastic formulation
1493    o verification: remove 2nd copy of input files and use script "prepare_run"
1494      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1495    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1496    o profiles: fix for multithreaded case
1497    
1498    o diagnostics: rename few diags:
1499      s/'PRESSURE'/'RCENTER '/g
1500      s/'TICE    '/'oceFreez'/g
1501      s/'TAUX    '/'oceTAUX '/g
1502      s/'TAUY    '/'oceTAUY '/g
1503      s/'SWFLUX  '/'oceQsw  '/g
1504      s/DIFx/DFxE/g
1505      s/DIFy/DFyE/g
1506      and add few ocean-forcing diagnostics:
1507      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1508    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1509      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1510      as actual snow thickness.  It now refers everywhere to effective snow
1511      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1512    
1513    checkpoint58r_post
1514    o modifications to pkg/seaice/growth.F, which change results of
1515      lab_sea experiment: fixes pertain to melting snow over open water, to
1516      masking EVAP under sea ice, and to using the correct AREA variable for
1517      computations of EVAP, PRECIP, HSNOW, and GHEFF
1518    o add ability to read bathy, salt, and theta using MNC (off by def)
1519    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1520      both are turned off by default and do no change any results
1521    o seaice advection with pkg/thsice: a step toward the use of non-linear
1522      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1523    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1524      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1525      in natl_box (affects results @ truncation level: update output.txt)
1526    o multi-threading and IO:
1527      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1528      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1529        (needed to work with SingleCpuIO): tested in all verif. exp.
1530    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1531      affects the results (but none of the verification test uses this scheme).
1532    o Adding some pkg/diagnostics capability to pkg/seaice
1533      (will certainly be subject to changes)
1534    o ctrl: adding new control variables:
1535      lwflux, lwdown, evap, snowprecip, apressure, runoff
1536    
1537    checkpoint58q_post
1538    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1539      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1540      high_res_cube configuration by 4% on Columbia.
1541    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1542      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1543      dynamical allocation (seems to work in multi-threaded).
1544    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1545      single CPU io) so that TAF does not have to see EESUPPORT.h
1546    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1547    
1548  checkpoint58p_post  checkpoint58p_post
1549    o obcs: stop if obcs is used with useCDscheme = .true.
1550  o shelfice:  o shelfice:
1551   - fix a sign error so that no slip at shelfice interface works   - fix a sign error so that no slip at shelfice interface works
1552   - remove stop for combination non-hydrostatic code and shelfice. That does   - remove stop for combination non-hydrostatic code and shelfice. That does
# Line 1246  o add two new packages Line 2788  o add two new packages
2788    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2789    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2790      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2791      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2792  o add offline package  o add offline package
2793  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2794    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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