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revision 1.623 by heimbach, Mon Mar 6 19:19:59 2006 UTC revision 1.1174 by jmc, Sat Oct 10 17:09:58 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 tutorial_global_oce_optim:
8      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
9      and add SIZE.h_mpi for MPI testing
10    o pkg autodiff
11     - fix bug in autodiff_restore
12     - make genmake2 remove comments and empty lines from ad_input_code.f in
13       order to reduce file size (new script file remove_comments_sed)
14    o allows to specify vertical profile of vertical viscosity (viscArNr)
15    o pkg autodiff
16      autodiff_ini_model_io: comment out writing of grid information to netcdf
17      files, because at this time the grid fields are a bunch of zeros
18      (this is analogous to ini_mnc_vars.F)
19    o pkg seaice/autodiff:
20     left-over from removing the 3-time-level fields:
21     - small rearrangement of common blocks (SEAICE.h)
22     - fix field declaration in order to get meaningful output in
23       adseaice.*.nc (adcommon.h)
24    o pkg obcs:
25     - go through NH code only if nonHydrostatic=T
26     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
27     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
28       => Update output of experiment seaice_obcs
29     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
30     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
31     - fix restart for useOBCSprescribe + useEXF
32    o pkg ctrl
33     - make obcs as control parameter work also with useSingleCPUio
34     - replace a few sny and snx by Ny and Nx to be consistent with
35       ctrl_set_globfld_x/yz.F
36    o pkg seaice
37     - re-introduce global field frWtrAtm for the case of
38       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
39     - catch the case of an empty filename in seaice_cost_init_fixed.F
40    o pkg ecco:
41     - small bug fixes in the_main_loop
42      . fix order of monitor arguments
43      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
44      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
45        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
46     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
47       imbalance diagnostics for wmean_h/sflux = 0
48     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
49     - catch the case of empty filenames in ecco_cost_init_fixed.F
50       and ecco_readparms.F
51     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
52       to make this statement meaningfull in ecco_cost_weights.F
53    o pkg zonal_filt:
54      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
55      - when using rStar, filter uVel*hFacW instead of uVel
56       (tested without topography: fix a Pb of growing instability with NLFS)
57    o pkg/aim/thsice:
58     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
59      (works as SST restoring)
60    o pkg/thsice:
61     -add specific parameter for salt restoring in slab mixed-layer
62       (by default equal to the temperature restoring)
63    
64    checkpoint61v
65    o pkg/kpp:
66     -add double diffusive contributions as a hack, turned off by default
67      for now, and the code can be excluded with a CPP-flag
68      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
69     -add a verification experiments to "vermix" to test this code
70    o pkg/mom_common:
71      Move computation of length scales to mom_init_fixed.F (avoid recomputation
72      at each time-steps*levels).
73    o pkg/layers:
74      Created a new package for computing volume fluxes in temperature or
75      [not yet implemented] density layers, e.g. for calculating residual
76      overturning circulations.
77    o pkg/diagnostics:
78      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
79    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
80    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
81      To avoid mixing type (RS/RL) of input/output array argument,
82      replace single mixed-type array with a pair from each type (RS/RL).
83    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
84      is now implemented for all pkgs (previously only done for the main pickup)
85    
86    checkpoint61u
87    o pkg/obcs:
88      - change OB?eta from _RS to _RL and put them into a separate commen block
89      - add code to read OB?eta from a file via obcs_prescribe_read: the code
90        compiles and does not destroy any other experiments, the data is read
91        properly, but the code is not tested in actual applications
92    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
93      create a meaningful unit attribute for the time coordinate variable
94    o pkg/ebm: add plenty of missing "_d 0" ;
95       update results of experiment global_ocean_ebm (fwd + adjoint tests)
96      Notes: several pieces of code only works for (very) specific set up
97       (domain size, lat range, etc ...); should be documented & stop if one
98       of those assumptions is not meet.
99    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
100       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
101          and offline_exf_seaice (seaicetd + adjoint).
102    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
103       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
104        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
105    o few changes to pass when compiling with strick checking of arguments
106       across S/R (allow to find few bugs in S/R calls).
107    o pkg/seaice:
108     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
109       2d-fields, for slightly better performance
110    
111    checkpoint61t
112    o pkg/seaice:
113     - remove unused variables in seaice_evp
114     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
115    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
116       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
117       each processor opens a different file (a fix from Matt).
118    o cg2d:
119       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
120       this reduces number of EXCH calls by 2 when using exch2.
121       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
122       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
123    o pkg/thsice:
124       add code for Near Infra-Red albedo (from Jeff)
125       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
126    o ini_model_io:
127       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
128       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
129       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
130    
131    checkpoint61s
132    o pkg/exch2 (exch2_rxN_cube*):
133       remove last BARRIER (no need to synchronise after getting data from shared
134       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
135    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
136      and generate new output (for the 2 tests) using default rotationPeriod.
137    o pkg/exch2:
138      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
139        (was already the case with AUTODIFF_EXCH2 defined)
140      - add bj in exch2 arrays and S/R.
141      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
142        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
143    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
144      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
145        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
146      - verification experiment natl_box.longstep
147    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
148      allow different versions of ifort (8 or 9) and different versions
149       of mpi (mpich or mpich2) to be used with the same optfile.
150      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
151       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
152    o pkg/seaice:
153      fix previous modif (3-level field removed) for old-pickup reading
154    
155    checkpoint61r
156    o pkg/seaice:
157     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
158      1. introduce fields for time step (N-1)
159      2. do not use levels 2 and 3 anymore (but keep them)
160      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
161         includes changes to pkg/thsice/thsice_get_velocity.F,
162         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
163         pkg/obcs/obcs_apply_uvice.F.
164     - completely remove code for leap-frog time stepping for second order
165       advection
166     - adjusted adjoint accordingly;
167       gradient checks have improved by an order of magnitude!
168    
169    checkpoint61q
170    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
171     - the boundary conditions along open boundaries are unclear, because the
172       associated masks are set to zero and are thus treated as closed when
173       applying the slip-boundary conditions.
174     - move initialisation of grid variables from seaice_init_varia to _fixed
175    o adding doc/diags_changes.txt
176    o model/src:
177      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
178       to avoid "_diags" naming if no relation to pkg/diagnostics.
179      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
180       file and only call PLOT_FIELD_XYZ if debugMode=T.
181      remove few PLOT_FIELD_XY calls outside initialisation.
182      remove few unnecessary BARRIER.
183    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
184      of salt_plume package in Southern Ocean
185    o pkg/thsice:
186     - fix hOceMxL in overlap (needed for sea-ice advection);
187       update output of experiment global_ocean.cs32x15.icedyn.
188    o pkg/seaice:
189     - make the (placeholder-)tracer IceAge a little more meaningful
190      by avoiding ridging of age due to convergent ice flow
191     - add diagnostics for surface temperature, atmospheric and oceanic
192       heat flux, and atmospheric and oceanic ice growth
193    
194    checkpoint61p
195    o eesupp (global_max & global_sum):
196     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
197     - remove starting & endding barrier (no longer needed)
198    o pkg/mdsio, writelocal:
199       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
200       (remove the STOP): uses shared buffer IO to store data from all threads
201       and then let master-thread write nThreads tiles.
202    o pkg/mdsio (read/write field):
203     - tiled IO done in 1 piece (all levels at a time);
204     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
205     - multi-threaded: allow to read/write local (non-shared) array
206       (was already working with singleCpuIO ; now works also without);
207       => no longer needs barrier call after reading a file (added inside
208       mds_read/write field).
209     - move barrier calls outside gather/scatter_2d to mds_read/write_field
210    o pkg/obcs/exf
211      - exf_getffieldrec.F: add a few ". _d 0" and
212                            add code to catch the case fldperiod = 0.  
213      - obcs_precribe_read.F: change if statements so that they match
214                              the variable type (_RL)
215      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
216        exf_iprec) as part of namelist EXF_NML_01
217    o pkg/mdsio:
218      - read/write tiled (local) files: read/write 1-level tile chunk at a time
219        (instead of segment of length sNx); expected to speed up tiled IO.
220    o pkg/exch2:
221      - take buffer copy from/to array out of S/R exch2_send/recv into new
222        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
223        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
224      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
225      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
226        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
227        including Topology header file (and common blocks).
228      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
229        remove 2nd exch call in exch2_s3d_rx (no longer needed).
230      - document S/R arg. list (+ update some comments)
231    o pkg/seaice:
232      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
233        temperature and humidity over sea ice based on climatological values.
234      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
235        of LSR (this change is expected to change the results slightly because now
236        it uses slightly difference moduli from the second last LSR solution, but
237        that is more consistent with the stress computations; this part of the code
238        is not tested in the verification experiments)
239      - fix diagnostics for flux of ice in case of B-grid
240      - turn strain rates eij and press into global fields within global
241        common block in SEAICE.h for more straighforward diagnostics
242      - fix diagnostics for principal stress components, press, zeta, eta
243        to give something meaning full
244    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
245      new output (all 4 tests) using default rotationPeriod.
246    o pkg KPP:
247      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
248      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
249        and normal grid from 1 to Nr)
250    o Fix computations of L4rdt in mom_calc_visc.F
251    o eesupp:
252      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
253      should be called before a "stop" if we know that all process are going
254      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
255    
256    checkpoint61o
257    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
258    o model/src/ini_curvilinear_grid.F:
259       compute angleSin/CosC when they are not read from a file
260    o pkg/seaice:
261       add pseudo time stepping for LSOR
262    o pkg/exch2:
263       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
264    o pkg/seaice:
265       Adding separate sea ice albedo, drag coefficients, and HO in Southern
266       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
267    o SingleCpuIO:
268       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
269    o pkg/seaice:
270       put exchanged variable in (local) common block for MPI+Multi-Threads
271       to work (necessary with exch1, and for now with exch2 too).
272    o verification: to get more experiments tested with mpi, mth and mpi+mth,
273      change tiling of:
274       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
275       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
276      update output of exp:
277       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
278       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
279      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
280                       (note: output.txt generated on faulks using only 1 tile)
281    o eesupp & mdsio (SingleCpuIO):
282     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
283       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
284       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
285     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
286     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
287       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
288    o pkg/exch2:
289     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
290       read parameter file "data.exch2" if it exists; otherwise try default regular
291       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
292     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
293       with new code (not to be used, just as a backup solution).
294     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
295       in utils/exch2/input.
296    
297    checkpoint61n
298    o eesupp & mdsio (SingleCpuIO):
299      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
300        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
301        receive real*4 array (instead of real*8) to read/write 32.bit files.
302        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
303         and remove new mapping S/R)
304    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
305      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
306        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
307        when using exch2. Add S/R to map global io-buffer to global model array.
308      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
309    
310    checkpoint61m
311    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
312      and add 3 other S/R for other types (R4,R8,RS).
313      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
314    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
315     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
316     - reduce number of macro definitions (keep only those which are used);
317       can always call directly the corrresponding S/R if needed.
318     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
319       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
320     Fixed wrong type of arg in:
321       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
322       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
323     To fix: global_sum of var in common block is wrong (multi-threaded) in:
324       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
325     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
326    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
327      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
328    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
329    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
330      edges are closed (zero depth); might happen with "blank tiles";
331      for now, disabled if using OBCS.
332    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
333      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
334    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
335      to reduce length of 1.D array print in STDOUT.
336    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
337      + use 48 tiles (16x8): this will allow to test "blank tiles".
338    o start to test MPI + multi-threaded (change testreport to skip tests
339      where number of tiles do not match).
340    o genmake2: add option "-omp" to turn on Open-MP ;
341      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
342    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
343      and keep the original tile numbering. Note: compatible with old
344      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
345    
346    checkpoint61l
347    o Overlaps had been forgotten in calculating ijk keys : fixed
348    o fix cyrus makedepend for gcc 4.4
349    o experiment fizhi-cs-aqualev20:
350      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
351      and generate new output. Note: new output is much closer to the old
352      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
353      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
354    o pkg/fizhi:
355     - change to avoid indices going deliberately over array-bounds
356     - remove unnecessary MPI stuff
357     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
358     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
359       does not go over array-bounds and therefore returns reliable output.
360     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
361       this S/R has 4 output arguments, which are used inside "get_alarm";
362       when it is called with the same variable "ndum" in place of several
363       output arguments, this produces weird side effect inside "get_alarm"
364      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
365       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
366       address) and produces error.
367    o tools/gemake2: (March 27-29 2009)
368      with option "-mpi": link *_mpi files from "MODS" dir (this is what
369      testreport does).
370    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
371    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
372       update lab_sea.lsr & lab_sea.salt_plume results
373    o pkg/seaice:
374      Major overhaul of the LSOR solver: change discretization from original
375      finite differences to finite volume. The old routine is still in the
376      file seaice_lsr.F and can be turned on with the CPP-flag
377      SEAICE_OLD_AND_BAD_DISCRETIZATION
378      Along with this change, the discretization of the strain rates is changed.
379      The same flag turns on the old discretization in seaice_calc_strainrates.F
380      All verification experiments with seaice are affected (except for
381      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
382      results by setting the above flag.
383      Further changes involve changes in defaults:
384      - ALLOW_FLOODING is defined and turned on by default
385      - SEAICEadvSnow = .true. is now the default
386      - SEAICEadvSalt = .true. is now the default
387      - SEAICEadvAge  = .true. is now the default
388      - SEAICE_clipVelocities  = .false. is now the default
389                                         (as per J. Zhang's recommendation)
390      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
391        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
392      - seaice_growth: replace computation of UG by a simple copy from wspeed
393    
394    checkpoint61k
395    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
396      seaice_lsr: fixed a few metric terms,
397                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
398                  add more debugging diagnostics
399      seaice_evp: removed superfluous many metric terms of FV discretization
400                  of stress divergence
401                  affects lab_sea, lab_sea.hb87
402      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
403                  of stress divergence for non-evp solver
404                  (this part is not tested anywhere)
405      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
406                  they were effectively only half slip
407                  affects lab_sea.hb87
408      updated all relevant verification experiments (except lab_sea//output_adm.txt
409        which was left over, but fails at level 7 & 6)
410    
411    checkpoint61j
412    o pkg/seaice: turn a few hard wired parameters into run time parameters
413    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
414      time in seconds as promised by the usints in seaice_monitor and exf_monitor
415    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
416      that are not cubed-sphere grids
417    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
418    o pkg/ctrl:
419      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
420    o non-hydrostatic (calc_gw.F):
421      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
422      update output of exp. global_ocean.cs32x15.viscA4
423    o remove backward compatibility for thetaMin,phiMin
424      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
425    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
426      interpolated wind field not only for curvilineargrid=.true., but also
427      for a rotated grid (rotateGrid=.true.)
428    o pkg/exf: add capability to bypass interpolation for runoff
429      by setting yet another CPP-flag
430    o eesupp/src, B-grid exchange:
431      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
432    o autodiff
433      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
434      allows to switch to single-prec common blocks;
435      corresponding switch occurs in tamc.h, integer isbyte
436      TAF store directivs "byte" and "kind" seem equivalent;
437      Most tamc.h have been updated correspondingly.
438    
439    checkpoint61i
440    o autodiff:
441      fix autodiff_sore/_restore indices for obcs
442      (spotted by I. Hoteit, M. Mazloff)
443    o pkg/autodiff, pkg/ctrl:
444      Add flag to reduce all tapelev I/O to single-prec.
445      In data.ctrl set
446        doSinglePrecTapelev = .TRUE.
447    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
448      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
449    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
450      real fresh water flux (not yet)
451    o pkg/mdsio & rw:
452     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
453     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
454    o pkg/flt:
455     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
456       init_fixed & ini_varia.
457     - clean-up & simplify linear interpolation S/R:
458       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
459     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
460     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
461     - add vert. coordinate & horiz. indices to output files.
462     - change vertical position in initial condition, from index to depth [m].
463     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
464       (easier to get to a curvilinear grid) ; delX,delY no longer used.
465    o pkg/ggl90: a few modifications:
466     - fix bottom boundary condition, and interpolation of KappaE
467       near top and bottom
468     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
469     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
470     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
471    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
472      (maintain temporary backward compatibility, until next checkpoint)
473    
474    checkpoint61h
475    o pkg/diagnostics with "periodic averaging diagnostics":
476      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
477    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
478    o pkg/obcs: fix loop ranges for balancing code
479    o pkg/flt:
480     - improve criteria for finding which tile owns a float.
481     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
482    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
483      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
484      with ocean biogeo)
485    o pkg/flt:
486     - do some cleaning and fix the restart ;
487     - add output.txt in flt_example/results to get this pkg tested.
488    o genmake2: add an EXTENDED_SRC option and flag.
489       for now, cannot be turned on on command line (only through genmake_local)
490    o pkg/mdsio: read/write vector:
491     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
492     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
493       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
494     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
495      (drop to 4 digits matching for grad). But this test does not look very
496      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
497    
498    checkpoint61g
499    o pkg/flt:
500      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
501       + make OPTIONS file more standard.
502      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
503      - fix _BYTESWAPIO CPP-Flag
504      - standard reading of file-parameter "data.flt"
505      - fix argument list of S/R FLT_RESTART
506      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
507    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
508    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
509      a still unfixed compiler/optimization bug
510    
511    checkpoint61f
512    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
513      update results of global_ocean.cs32x15.icedyn test.
514    o move getcon.F from model/src to pkg/fizhi.
515    o pkg/exf: add parameter for extrapolation of temp up to the surface
516       and option to prevent negative evap (in bulk_largeyeager04 only).
517    o Prather Advection scheme: fix tracer conservation for divergent flow
518      (e.g., when using NonLin Free-Surface).
519    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
520    o gmredi (Visbeck-variable-K):
521     - add more parameters to Visbeck-variable-K.
522     - use a 5 points average for dSigmaR in Visbeck-K calculation
523       (more "homogenous": same stencil and same weights as in dSigmaH)
524     - update output of ideal_2D_oce experiment.
525    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
526      (#undef REAL4_IS_SLOW)
527     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
528       coordinate variable
529     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
530       (surface forcing fields), removes some of the functionality
531     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
532     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
533       probably not all: copy _RS surface flux fields to RL field before
534       calling DIAGNOSTICS_FILL
535     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
536       real*4 (CALL EXCH_*_RS) versions.
537     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
538       (generate new output).
539    
540    checkpoint61e
541    o gmredi (Visbeck-variable-K):
542      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
543      - change computation of Visbeck-K where Slope > Smax :        
544        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
545        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
546    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
547      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
548    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
549    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
550      does not become too large (to avoid precision problems in implicit-diffusion
551      solver); update ideal_2D_oce output.
552    o pkg ggl90:
553      - in ggl90_cal.F: compute only one set of visc/diff, used to
554        step forward TKE/T/S/momentum
555      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
556        have Prandlt =1)
557    o gmredi (fm07):
558      - add lower limit on Transition layer thickness + lower limit on 1/lambda
559      - allow to set few more params from data.gmredi
560    o pkg ggl90:
561          - add missing sqrt(2) factor in computation of mixing length
562            scale in ggl90_calc.F
563            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
564    
565    checkpoint61d
566    o adjoint modifs
567      - adapt to new field rhoInSitu
568      - allow to revert from StoreDynVars2D, StoreDynVars3D
569        to individual fields
570        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
571    o store 3-D (in-situ) density in commom block (DYNVARS.h)
572     - save 1 rho computation.
573     - no longer modify T & S inland when using down_slope pkg.
574    o gad_som : allow to switch to SOM advection for T & S without corresponding
575      pickup files (using new S/R: MDS_CHECK4FILE).
576    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
577      (for useSingleCpuIO to work in multi-threaded)
578    o pkg/shelfice:
579     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
580       with SHELFICEtopoFile in data.shelfice
581     - move code for reading ice shelf topography and modifying hFacC into separate
582       subroutines of the shelfice package
583     - separate initialisation of "fixed" and "variable" variables
584     - kTopC is not (yet) replaced by kSurfC, although this is possible
585    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
586    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
587      and rename:
588      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
589      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
590    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
591    
592    checkpoint61c
593    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
594      to add mass source/sink of fluid in the interior (3-D generalisation
595      of oceanic real-fresh water flux).
596    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
597    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
598    o new pkg: down_slope
599      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
600      - presently, modify T & S inland (dwnslp_calc_rho.F).
601        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
602      - implementation for ocean in P-coords not tested.
603      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
604    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
605      (to facilitate conversion of oceanic pkg to p-coordinate).
606    o change FIND_RHO to FIND_RHO_2D :
607      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
608    o new pkg: cheapaml
609    
610    checkpoint61b
611    o exch2:
612      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
613      - no longer depend on the order sequence (N,S,E,W).
614      - 3rd exchange no longer needed (tested with 24 tiles).
615      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
616      - exch_UV_A-grid readily available (but not yet tested).
617      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
618      (both are no longer needed) in exch_uv: no effect in forward run; but
619       get truncation error differences with adjoint exch.
620    o exch2:
621     - change index-bounds storage (moved from target to local tile,
622       more intuitive this way) ; rename/remove some variables.
623     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
624    
625    checkpoint61a
626    o exch2/matlab-topology-generator:
627      fix bug in index bounds for N-S internal exchange (hard to tell if this
628      had any effect on the solution).
629    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
630      is exceeded
631    o testreport: modify syntax of awk, so that it works also with
632      awk, and not only with nawk and gawk
633    
634    checkpoint61
635    o autodiff
636      Change default for TAF usage by removing argument '-nonew_arg'
637      This changes TAF subroutine argument list (ordering of active var.)
638      Omission of this flag leads to incompatibility w.r.t. TAMC
639      To restore TAMC-compatibility, need following modifs:
640      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
641      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
642      Tested TAF version is 1.9.22
643      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
644    
645    checkpoint60
646    --->>> This is the last checkpoint for which generating the adjoint
647    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
648    --->>> by default.
649    --->>> Future checkpoints will ommit this flag by default.
650    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
651    o pkg/grdchk: Add gradient check to etan0 perturbations.
652    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
653    o pkg/autodiff: more flexibility in zeroadj.
654      model/src: modifying do_oceanic_phys.F accordingly.
655    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
656    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
657      special setup of gmredi for which the adjoint is stable
658      enough for parameter optimization.
659    o bridging the gap between eddy stress and GM.
660      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
661          along with a change in CPP option (now ALLOW_EDDYPSI).
662      -> when using GM w/ GM_AdvForm:
663          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
664          is applied either in the tracer Eq. or in momentum Eq.
665          depending on data.gmredi (intro. GM_InMomAsStress).
666      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
667      The key modifications are in model/src/taueddy_external_forcing.F
668      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
669    
670    checkpoint59r
671    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
672      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
673      fix option to read coriolis(@ cell-corner) from files with CS-grid.
674    o pkg/mnc: add some attributes to standard 1D-coordinate variables
675    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
676      mass points, when using mnc for output
677      - add runtime parameter (missing_value, missing_value_int) to override
678        default (which is the value of getcon('UNDEF'))
679    o pkg/mnc: prepare mnc for the actual use of missing values with the
680      diagnostics package: small fix in mnc_cw_readwrite.template and more
681      initialisation of never used fields
682      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
683      versions
684    o pkg/thsice/thsice_ini_vars.F added default initial values so that
685      thermodynamics sea ice solver does not blow up when some initial fields
686      are missing.
687    o move from external_forcing_surf.F to ini_forcing.F
688      the p-coord. hack consisting in using pLoad to set phi0surf ;
689      update output of tutorial_global_oce_in_p (affected @ truncation level).
690    o Freshen up a bit hs94.1x64x5, notably:
691      remove rotationPeriod and tRef=5*0. (adjoint only), and add
692      exactConserv=.TRUE.
693    o pkg/generic_advdiff:
694      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
695      applies to files where Temperature & Salinity 2nd Order moments are used.
696    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
697      this uses a dynamically allocated internal state data structure
698      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
699      and requires a fortran 90 compiler
700    
701    checkpoint59q
702    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
703       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
704    o Refresh tutorial_global_oce_biogeo, notably:
705      - change bathymetry (put back seamounts in ACC, use hFacs)
706      - change EOS (POLY3 --> JMD95Z)
707      - use Bryan-Lewis vertical diffusivity
708      - use multidimensional advection
709      - remove old virtual virtual in dic pkg, now done through ptracer pkg
710      - change a couple of parameters in dic pkg
711    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
712    o pkg/obcs: change default to OBCSfixTopo = .true.,
713      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
714      - replace "debugMode" with "debugLevel .GE. debLevB"
715    o implementation of TAF directives for gchem,cfc,dic
716    o remove "exp5" (replaced by tutorial_deep_convection).
717    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
718      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
719      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
720      --> changes results in exp4, seaice_obcs
721    o tutorial_deep_convection :
722      update the set-up and increase resolution and domain size ; start
723      from pseudo initial conditions = output at t=120mn in order to see
724      something happening when running testreport.
725    o pkg/seaice: add os7mp as an advection scheme
726                  add check for advection schemes
727                  add a flag for restoring T and S underneath sea ice
728    o pkg/my82: add netcdf-support and diagnostics
729    o thsice pkg:
730      - Now hsMax limits snow height by turning it into ice following
731        flooding scheme (and now conserving energy)
732      - Slight rewriting of the formula in thsice_calc_thick.F
733      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
734      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
735    
736    checkpoint59p
737    o gchem / dic / cfc :
738      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
739      - add new parameter files: "data.dic" & "data.cfc" ;
740      - various re-arrangement in initialisation & header file ;
741      - fix tutorial_global_oce_biogeo for multi-threaded test.
742    o pkg/dic: test for "pickup_dic" file when restarting ;
743      if no pickup-file, can restart with a re-initialised pH (same as it did
744      before) providing pickupStrictlyMatch is set to False.
745    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
746      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
747    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
748      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
749    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
750     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
751       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
752    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
753       scheme to use for vorticty-term ;
754     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
755       (with default selectVortScheme, return to original discretisation)
756     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
757    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
758    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
759      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
760      also fix diagnostics VISCAHW & VISCA4W.
761    
762    checkpoint59o
763    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
764    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
765      move a few statemens out the main loop into separate loops
766    o pkg/shelfice:
767      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
768        (kg/m^2/s), does not break tests, because in verification/isomip,
769        rhoConstFresh=rhoConst (by accident)
770      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
771      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
772        new file model/src/seawater.F, so that they are available for all pkgs.
773      - convert potential temperature into in-situ temperature. This changes the
774        isomip tests => update tests
775    o add a flag writePickupAtEnd (default=true) to be able to suppress
776      writing a pickup at the last timestep
777    o tools/mpack-1.6 :
778      - disable automake (not working) and autoconf (not needed).
779      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
780        also cleaner with much less compilation warnings.
781    o pkg/profiles:
782      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
783      (for "less than 32 characters name" compiler requirement)
784    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
785      conditions that have a different sampling frequency than S/T/U/V obcs
786    o pkg/diagnostics (stats-diags):
787      - fix global Min/Max in case 1 processor get only empty tiles
788    o genmake2: replace (4 times)
789         make genmake_tc_1.o >> genmake_warnings 2>&1
790      with
791         COMM="$CC $CFLAGS -c genmake_tc_1.c"
792         echo $COMM >> genmake_warnings
793         $COMM >> genmake_warnings 2>&1
794      to make genmake2 always see the value of CC as specified in the optfile.
795    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
796      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
797      - modify verification advect_cs test to test SOM-advection on CS-grid.
798    o pkg/ctrl:
799      - Rewrite of ctrl_map_ini_ecco.F,
800        introducing a generic routine (ctrl_map_ini_gen.F).
801      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
802    
803    checkpoint59n
804    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
805      number in dedicate array "hdiag":
806      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
807        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
808      - many small changes (integer format) for large number of diagnostics
809      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
810        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
811    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
812      usingSphericalGrid, this allows to define the rotated grid coordinates
813      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
814      geographical coordinates according to the inverse of the rotation defined
815      by the Euler angles, so that Coriolis parameter and online-interpolation by
816      exf works with the geographical coordinates on XC/YC/XG/YG.
817      Naturally, this feature does not work with all packages, so some
818      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
819      profiles), because there the coordinates are assumed to be regular
820      spherical grid coordinates.
821    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
822      - introduce isopycnal diffusion coefficient control.
823    o tools/adjoint_options:
824      - additional control vector components.
825    o pkg/mnc: have mnc create marginally meaning full coordinate variables
826      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
827    o pkg/mypackage:
828      - add example of read/write pickup for state-var ;
829      - add entry points to the main code for state-vars diags & write-pickup.
830    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
831      transitions for useExfYearlyFields
832      - add new subroutine that determines the file to read from for
833        use*YearlyFields = .TRUE. and .FALSE.
834      - add a verification experiment to global_with_exf that tests
835        useExfYearlyFields with USE_EXF_INTERPOLATION defined
836    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
837      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
838      subroutines (which could be generated from a template, because they are
839      almost identical), for now they are included in obcs_prescribe_read.F for
840      simplicity
841    o pkg/exf:
842      - add a little more diagnostic to exf_interp_read (in analogy to
843        mds_read_field, can be turned off with debugLevel < debugLevA=1)
844      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
845        ugly but fast by unrolling short inner loops, inserting a unroll=8
846        directive in routine lagran, and splitting a loop and making do while the
847        outermost loop (the latter requires the intoduction of index arrays)
848    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
849    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
850      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
851    o verification/seaice_obcs: updated for restart test and latest options
852    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
853      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
854      for now this is only available for the C-grid code and also within
855      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
856    
857    checkpoint59m
858    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
859      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
860    o gad_som : fix flux output (& diagnostics) to have same units as other  
861      advection scheme fluxes (was previously multiplied by deltaT).  
862    o added verification/seaice_obcs both to test seaice open boundaries
863      and to provide an example matlab scrpt for generating them
864    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
865    o pkg/salt_plume: clean up salt_plume_frac.F to
866      remove redundancy in PlumeMethod 1 and 4
867    o pkg/kpp: added saltplume diagnostics
868    o pkg/obcs and pkg/seaice:
869      - do not set uice and vice to zero when OB*icefile are unspecified
870      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
871      - moved seaice tracer obcs after call to seaice_growth
872    o pkg/salt_plume: added various options for salt plume depth
873      criterion and for vertical distribution of the salt
874    
875    checkpoint59l
876    o pkg/ptracers: new version of ptracers pickup:
877      read meta file and write only fields which are needed to restart.
878      ( same logic as main pickup file ; also using pickupStrictlyMatch )
879    o pkg/seaice:
880      - add timescale for melting due to warm mixed layer as a means of
881        setting SEAICE_availHeatFrac more conveniently
882      - add a CPP-flag/runtime parameter check for flooding algorithm
883      - reformulated availHeat in seaice_growth.F to be independent of AREA
884    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
885      unit changes
886    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
887    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
888      SX vector computer.
889    o pkg/seaice:
890      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
891        seaice forcing fields can now be read only through pkg/exf
892      - removed some unused halos
893    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
894    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
895      or U/VICE from U/VWIND before computing U/VSTRESS
896    
897    checkpoint59k
898    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
899      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
900    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
901      all experiments pass when compile with un-initialised var. checking option.
902    o added pkg/salt_plume
903    o script to test restart (for now, in MITgcm_contrib/jmc_script)
904    o pkg/seaice: new read/write pickup version.
905      read meta file and write only fields which are needed to restart.
906      ( same logic as main pickup file ; also using pickupStrictlyMatch )
907    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
908    o lab_sea.hb87: modify the domain & update output.hb87.txt :
909      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
910      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
911      process. Fixed here by closing the domain at the Northern boundary.
912    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
913    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
914      a set of consecutive levels in/from a 3-D array.
915    o pkg/ptracers:
916      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
917      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
918    
919    checkpoint59j
920    o in pkgs: dic, obcs, offline, rbcs:
921      standard way to compute coeff. for time interpolation between 2 time reccords
922      which retains full precision (& make results less dependent on compiler).
923      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
924    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
925      packages instead of reading ice cover and wind speed separately
926    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
927     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
928      to allow to compile customized code before the update)
929    o cleaning-up:
930      - fix CPP instruction syntax in pkg/obcs
931      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
932        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
933      - fix some threads issue in IO parts.
934    o pkg/dic:
935      - add tons of "_d 0" (--> much better testreports !)
936       and then update outputs of tutorial_global_oce_biogeo
937    o pkg/mom_fluxform:
938      add a special version of momentum advection intended to conserve momentum
939      next to a bathymetry step or a coastline edge. (default = off = #undef)
940    o new read/write pickup version:
941      - for now, only implemented for main (mdsio) pickup file.
942      - write out only what is needed to restart; merge pickup_nh , pickup_ph
943        and main pickup together.
944      - read meta file; read only what is needed to restart; stop if a field
945        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
946        if it make sense (even if the restart is not perfect).
947      - if no meta file, assume that pickup to read corresponds exactly to
948        a pickup that would currently be written.
949      - read pickup written in the old format (until checkpoint59i) if it
950        recognizes an old meta file (no field-list).
951      - add a meta file in exp. which starts from a pickup: 2 cases:
952        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
953         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
954        b) a meta file describing the content of the associated pickup file
955         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
956    o pkg/mdsio & pkg/rw:
957      - new routine to read a meta file ; new set of routine to read
958        Multiple-fields file (with meta file).
959    o added open boundary conditions capability for seaice
960        HSNOW, HSALT, UICE, and VICE
961    
962    checkpoint59i
963    o adjoint:
964      * fix multiDimAdvection adjoint
965        (partial recomputation problem by TAF for fVerT(:,:,kDown)
966        and comlev1 size definition (maxpass vs. max. number of tracers)
967      * verification/global_ocean.90x45x15 adjoint now tests
968        NLFS and multiDimAdvection using DST3 (=30)
969      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
970    o pkg/kpp: add "_d 0" to real constant (if missing);
971      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
972      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
973    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
974      for internal parameters related to restart process (formerly from PARAMS.h)
975      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
976    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
977      as argument. (only atm2d & obcs write_pickup have not yet been updated)
978    o pkg/monitor:
979      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
980      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
981      - account for deep Atmosphere factor and density factor (anelastic)
982    o added open boundary conditions capability for seaice HEFF and AREA
983    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
984      thermodynamics
985      - requires a little reorganization, which affects the testreport results
986        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
987        so that now the conservative form is tested
988      - add a few comments
989    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
990    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
991    o add new diagnostics to seaice: advective, diffusive fluxes (only for
992      multidim-advection, for scheme 2 they are not filled) and transports,
993      thermodynamic growth rates
994    o change units of EmPmR (inside the code, + within coupling interface)
995      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
996      Affects results @ truncation level (cg2d match) and update output of
997       experiments: lab_sea(6), global_ocean.90x40x15(10),
998      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
999      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1000      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1001      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1002    
1003    checkpoint59h
1004    o pkg/exf:
1005      - improve vectorization by moving if-statement out of loops in
1006        exf_mapfields, exf_radiation
1007      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1008    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1009    o testreport:
1010      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1011        monitor & update offline_exf_seaice exp. output.
1012      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1013    o pkg/seaice:
1014      - bug fix in the evp solver: boundary conditions were affected be
1015        masking of zMax/zMin (changes results)
1016      - minor bug fix in boundary conditions in seaice_calc_strainrates
1017        (changes results for no_slip)
1018      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1019      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1020      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1021        stress formulation and no-slip boundary conditions
1022    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1023      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1024    o pkg/seaice: a first HSALT time stepping equation has been checked in
1025    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1026      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1027      without requiring DO-IF statements
1028    o pkg/thsice:
1029      use continuous power-law function for partition of energy between lateral
1030      melting/freezing and thinning/thickening ; old code using step function
1031      still available with #undef THSICE_FRACEN_POWERLAW
1032      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1033    o testreport: change AD testing : check against results/output_adm.txt
1034      using same scripts as for forward test.
1035    
1036    checkpoint59g
1037    o adjoint testing: in preparation for changing testreport:
1038      - output format: cost and grad written on separated lines
1039      - ad output results in directory "results" (instead of "results_ad")
1040    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1041    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1042    o pkg/ecco: allow user defined cost function contributions
1043    o testreport:
1044      Allow to choose (per experiment) the list of tested output variables
1045       and the main variable (used to issue a pass/FAIL ) ;
1046      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1047      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1048      Also modify printing of summary:
1049       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1050       b) echo the list of tested variables in the individual summary.txt of
1051          each experiment.
1052    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1053      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1054      (but still depend on the tile decompostion of the domain).
1055    o pkg/seaice: change a discretization detail to make the B-grid code
1056      "more symmetric". This change is likely to remove all "ridges/leads" that
1057      where quasi-aligned with the grid in B-grid solutions. It may also be
1058      the solution to the stress coupling issues with the B-grid.
1059    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1060      remove .cvsignore from input dir. (since testreport no longer run here).
1061    o pkg/thsice:
1062     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1063     - fix reshaping of sea-ice just after advection:
1064       melt all the ice only if ice-volume is too small.
1065     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1066       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1067     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1068    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1069      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1070    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1071      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1072      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1073      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1074      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1075      -> update output.txt
1076    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1077     this affects truncation error: -> update output.txt of exp:
1078      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1079      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1080    
1081    checkpoint59f
1082    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1083    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1084      a bounded range (in forward mode)
1085    o pkg/ecco, ctrl, autodiff and mom_common:
1086     internal parameter controls, completements of implementations
1087    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1088    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1089      (not seem any difference in testing results).
1090    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1091       at face corners.
1092    o pkg/generic_advdiff:
1093     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1094      loop range indices for computing vertical advection tendency
1095      and do the calculation in the interior only (no overlap) ;
1096      for now, only implemented for SOM advection (to save CPU time).
1097     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1098    o exch2 adjoint
1099      First set of changes:
1100      - add exch2 hand-written adjoint templates
1101      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1102        This will require cleanup in pkg/autodiff/*.F
1103        (changed routines currently kept separate in verif. code/)
1104      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1105        that used to hide exch2 or cubed-sphere specific code
1106        (commented via 'cph-exch2')
1107    o pkg/seaice
1108      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1109    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1110       output of global_ocean.cs32x15.thsice .
1111    
1112    checkpoint59e
1113    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1114      for B-grid vector (not yet tested) and C-grid vector (<- only used
1115      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1116    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1117      (#ifdef ALLOW_SALT_PLUME)
1118    o gather_2d/scatter_2d: removed halo regions
1119    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1120      scheme and the corresponding test case (under front_relax dir). For now,
1121      only available with Skew-flux form and not yet tested in realistic set-up.
1122      adjoint: store directives updated, but gradient checks deteriorated,
1123      so maybe GM/Redi adjoint is now broken.
1124    o seaice adjoint
1125      * add AREA, HEFF, HSNOW as control variable
1126        (should not change lab_sea results)
1127      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1128    o pkg/seaice:
1129      * added computation of saltFlux in seaice_growth;
1130        For time being, sea ice salinity is assumed constant
1131        contribution of snow flooding to freshening of sea ice is neglected.
1132        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1133        defaults to 0.0 in order to maintain backward compatibility.
1134        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1135      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1136      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1137        heat content used to melt or grow ice
1138      * commented out cap of HICE: it helps keep ice thinner
1139      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1140      * applied OBCS T/S mask to HEFFM sea ice mask
1141    
1142    checkpoint59d
1143    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1144     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1145     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1146    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1147     and change default value of parameter "GM_Small_Number";
1148     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1149       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1150       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1151    o pkg/ecco: cost function when applying pkg/smooth to controls
1152    o pkg/ctrl: add forcingPrecond run time parameter
1153    o pkg/seaice:
1154     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1155     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1156       changes verification/lab_sea
1157     - rearrange implicit part of u-equation in LSR solver to make it easier to
1158       read, understand, and debug. This causes changes at the truncation level.
1159     - fix (serious) bug in the boundary conditions (sign error in the implicit
1160       part) of the LSR solver. Changes all LSR results.
1161     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1162       is initilized with small values - does not change lab_sea results.
1163     - added HsnowFile initialization capability
1164    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1165     initialization of pkg/smooth and application to control vector
1166    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1167    o dependencies: pkg/profiles requires pkg/cal
1168    o pkg/profiles:
1169     - added option ALLOW_PROFILES_GENERICGRID
1170         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1171         that interpolation information (grid points and coefficients) is provided
1172         within the netcdf input files.
1173         -> sample matlab scripts can be found in MITgcm_contrib/gael
1174         that allow you to prepare netcdf input files.
1175     - also modified: cleaner include statements, cleaner error print statements,
1176       cleaner stops when error, and more tests of the netcdf input files consistency.
1177    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1178    o pkg/seaice:
1179     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1180       requires a new routine: seaice_diagnostics_fill.F
1181     - make sure that seaice does not move if not forced (pressure replacement
1182       method, Hibler and Ip, 1995), changes results
1183     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1184     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1185       It is turned off by default (=-1.), because it changes the results.
1186     - make it possible to read AREA from a file, too.
1187    
1188    checkpoint59c
1189    o add S/R and diagnostics for oceanic mixed-layer depth
1190    o move GMRedi call after all vertical mixing schemes (including KPP)
1191    o pkg/thsice:
1192     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1193      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1194    o pkg/obcs:
1195     - bug fix for balance code
1196    o pkg/seaice:
1197      - allow values of SEAICE_elasticParm > 1
1198      - add new parameter SEAICE_evpTauRelax as an alternative
1199        to SEAICE_elasticParm
1200      - make lsr boundary conditions free slip (by default), changes result
1201      - add code for no slip boundary conditions for lsr
1202      - set minimum of zeta to zero (and not 4e8) (changes results)
1203      - add a cap on AREA after advecting AREA if seaice_growth is not called
1204    o change calculation of Visbeck K:
1205      - no longer depend on tapering scheme; instead, compute slope (limited
1206        by GM_maxSlope). this is equivalent to what was comuted before with
1207        clipping or linear tappering.
1208      - fix vertical averaging (wrong by 1/2 level)
1209      - leave the old version (but will not be maintained) within
1210        #ifdef OLD_VISBECK_CALC / #endif
1211      - update output of exp. ideal_2D_oce
1212    o change error catch in calc_r_star to improve vectorization
1213    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1214      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1215    o adjoint:
1216      Re-organized adjoint checkpointing according to Matt Mazloff
1217      (but with modifs/completions/cleanups)
1218      Storing is now bundled into large arrays to optimized I/O
1219      (and second step in cleanup of the_main_loop)
1220    
1221    checkpoint59b
1222    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1223      - export/import (between ocean & coupler) fields needed for ocean DIC.
1224    o pkg/seaice:
1225      - get rid of three more exchanges seaice_calc_viscosities (required
1226        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1227      - bug fix in seaice_ocean_stress (update of lab_sea required)
1228      - reduce loop boundaries to necessary minimum also in seaice_evp
1229      - go back to the old way of computing deltaC/Z as the adjoint likes that
1230        better
1231    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1232      passive tracer to an Age Tracer) + update output.txt
1233    o pkg/exf:
1234      - implement A-grid / C-grid selection for wind-stress input files.
1235      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1236      for now, in exf_bulk_largeyeager04.F only :
1237      - change implementation for case where windspeed + 2. components wind-stress
1238        are read-in. AND use rhoConstFresh to convert evap.
1239    o pkg/seaice:
1240      - use correct EXCH_UV for wind-forcing (on A-grid).
1241      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1242        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1243    o pkg/exf:
1244      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1245      EXF_INTERPOLATION:
1246      - merge global_with_exf/code version of exf_interp_read.F
1247        to the main code ;
1248      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1249        reading the file ; Important: This options needs to be defined to recover
1250        previous code.
1251        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1252      - no longer loose real*8 precision along the way when using exf_iprec=64.
1253    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1254      - change discretisation of evp-solver in order to avoid another exchange
1255        (changes lab_sea) and clean up a little
1256      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1257        help the adjoint (this also changes the results slightly)
1258      - add a few "_d 0" where they had been missing in seaice_evp.F
1259      - cleaning up: remove unused seaice_calc_rhs.F
1260    o pkg/exf: some cleaning-up:
1261      - change various "constants" into runtime parameters
1262      - cleaned-up Large&Yeager04 routine which should eventually
1263        replace exf_bulkformulae.F (changed names of S/R and CPP)
1264        and merged various ALLOW_ATM_WIND options
1265     only used with thsice pkg (in thsice_get_exf.F):
1266      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1267        which are used when useStabilityFct_overIce=TRUE (= the default)
1268      - change default values of ice & snow emissivity and scale downward LW
1269        by ice & snow emissivity.
1270    o pkg/thsice:
1271     fix few little problems, in thsice_calc_thickn.F:
1272      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1273      - melt only laterally if hIce < hThinIce (as the comments say)
1274      and in thsice_extend.F:
1275      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1276      - start to form ice as soon as the minimum ice-volume is reachable.
1277     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1278      and cpl_aim+ocn
1279    o pkg/kpp
1280     - move computation of surface related input fields to KPP into a new
1281       subroutine kpp_forcing_surf.F
1282     - remove wrong (within bi,bj loops) EXCH calls.
1283     - little cleaning (add argument myThid in last position, cvs header ...)
1284     - for now, fix conservation problem by exchanging KPPviscAz (may not
1285       be the best fix)
1286    o pkg/seaice
1287     - check for inconsistent evp parameter/cpp-flag combination
1288     - remove leftover errIO flat for obsolete name list error handling
1289    o OpenAD
1290     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1291    
1292    checkpoint59a
1293    o pkg/seaice: some parameter clarifications and a little bit of clean up
1294    o pkg/thsice: rename run-time parameters:
1295       himin       -> hIceMin
1296       himin0      -> hThinIce
1297       hihig       -> hThickIce
1298       i0          -> i0swFrac
1299       transCoef   -> bMeltCoef
1300       frac_energy -> fracMelting
1301      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1302       with default values (for now) that do not change the results.
1303      remove old version of thsice vars advection in pkg/seaice.
1304    o in FFIELDS.h:
1305      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1306      - make pLoad & sIceLoad always available (but still only used if
1307         ATMOSPHERIC_LOADING is #define).
1308    o pkg/kpp: replaced _KPP_RL with _RL
1309    o bug fixes for vertical diffusivity computations when both KPP and
1310        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1311        are no longer updating the vertical diffusivity array
1312        (passed as argument) but are (re-) setting those arrays.
1313    o pkg/seaice: fix bug in evp solver, while doing that
1314      - change (improve?) discretization of stress computations for both
1315        cgrid-lsr and evp solver
1316      - add a new routine to compute strain rates
1317      - the above changes lab_sea results
1318      - add no slip conditions for evp solver (off by default), lsr-version
1319        may follow
1320      - fix exchange for shear at Z-points (does not change lab_sea)
1321      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1322        (to force the user to pick a time step since there is not "safe" way
1323        of choosing it)
1324      - add principal stress diagnostics
1325      - rearrange fields for evp a little to avoid having to call a: too many
1326        exchanges and b: exchanges for stress trensor components which we do
1327        not have.
1328      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1329        of evp, complete rewrite for lsr case (latter is does not yet work
1330        in all cases)
1331    o pkg/kpp: add code to have mixing in shelf ice caverns
1332      - add myThid to all kpp routines (long overdue)
1333    
1334    checkpoint59
1335    o pkg/exf:
1336      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1337        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1338      - move exf header files from lower_case.h to UPPER_CASE.h ;
1339        add missing cvs Header & Name
1340      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1341      - add namelist param. selectStressGridPosition, exf_monFreq
1342      - retire many _CLIM routines, and remove data.exf_clim
1343        + params moved to data.exf
1344        + climsst, climsss now handled by exf_set_gen, i.e.
1345          climss?period=0 refers to constant field,
1346          climss?period=-12 to monthly forcing
1347      - split up namelists in data.exf
1348    o pkg/seaice:
1349      - remove seaice_exch and seaice_exch_uv
1350      - remove superfluous exchange of theta
1351      - add myThid to seaice_budget_ocean/ice
1352      - add new interface for atmospheric wind forcing (C-grid only)
1353        + new routine
1354        + two new field (taux, tauy for stress over ice)
1355        + removed one global field (DAIRN) for C-grid case only
1356    o pkg/thsise
1357      - 2nd set of modifs for thsice adjoint in conjunction with exf
1358    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1359    
1360    checkpoint58y_post
1361    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1362      vertical diffusivity, similar to that in MOM4; turned on using
1363      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1364      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1365    o Added capability for 3D specification of background vertical diffusion
1366      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1367      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1368      "data" file that contains the 3D vertical diffusivity coefficients.
1369    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1370      - add code within pkg thsice to advect & diffuse sea-ice fields
1371      similar to (and will replace) what has been added in  seaice_advdiff.F,
1372      but: - conserving Mass, Heat & Salt.
1373           - better when using non-linear advection scheme (not yet fully tested)
1374           - can also be used in atmospheric set-up (for now, only the diffusion).
1375    
1376    checkpoint58x_post
1377    o IO option for global-file compact format:
1378      - add options when generating topology (utils/exch2/matlab-topology-generator)
1379      - add I/O capability (pkg/mdsio).
1380      - adapt utils/matlab/rdmds.m to read this format.
1381      for now long-line format not yet supported by pkg/mdsio (& exch2).
1382    o shelfice: add a few diagnostics
1383    
1384    checkpoint58w_post
1385    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1386      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1387      (and replace horiVertRatio in NH code).
1388      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1389                         and tutorial_plume_on_slope (sensitive to truncation)
1390    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1391      directly to drive seaice model (C-grid only)
1392    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1393     - reintroduce computation of wind from stress,
1394     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1395       mass points to avoid tau = 0
1396     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1397    o rdmnc.m: make it work with "global" files created with gluemnc
1398    o rdmnc.m : some improvements in dealing with singleton dimension
1399      (tested on all testreport mnc output files).
1400    o genmake2: disable pkg/profiles if netcdf test fails.
1401    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1402    o move call to cal_readparms up to make calendar parameters/variable available
1403      to all packages
1404    
1405    checkpoint58v_post
1406    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1407      useDynP_inEos_Zc tested.
1408    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1409    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1410      and portions thereof.  See read_cs.txt for description and examples.
1411    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1412      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1413      following the great-circle arc between those 2 points.
1414    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1415      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1416    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1417     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1418     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1419     - still needs work (not working with some options ; efficiency to improve)
1420       and serious testing.
1421     - use this scheme for temperature & salinity in 2 advection test exp.:
1422       advect_xy & advect_xz, respectively.
1423    
1424    checkpoint58u_post
1425    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1426    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1427    o testreport: add option "-skipdir" to skip some test.
1428    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1429      momentum calculation.
1430    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1431    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1432      remove checkpoint.F and the_correction_step.F (no longer used);
1433      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1434    o add option (linFSConserveTr) to correct for tracer source/sink due to
1435      Linear Free surface
1436    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1437    o pkg/thsice: fix reading mnc-pickups
1438    
1439    checkpoint58t_post
1440    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1441    o pkg/mdsio:
1442     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1443       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1444       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1445     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1446     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1447       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1448     - new S/R (to replace MDSWRITEMETA), which allows to write more
1449       informations (variable names, time ...) to meta files.
1450     - modify rdmds.m to give back the meta file content.
1451    o pkg/diagnostics: change vertical interpolation to be safer, and more
1452       flexible (define p-levels to interpolate to in data.diagnostics);
1453      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1454       diagnostic pointer.
1455    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1456    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1457    o fix multi-category seaice:
1458     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1459       SEAICE_MULTICATEGORY
1460     - fix short wave heat flux
1461    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1462       and allow to use EVP solver. Change forward lab_sea: test both EVP
1463       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1464    o Initial check-in of lab_sea adjoint
1465      (very similar to natl_box_adjoint/code_seaice)
1466      * used C-grid and EVP solver
1467      * used KPP, GM/Redi
1468      * uses inAdExact=.TRUE.
1469      * gradient checks fail for both ADM and TLM
1470        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1471        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1472        issue is related to forward mismatch between g77 an ifort
1473    o pkg/seaice: overhaul of thermodynamics
1474     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1475     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1476     - move a few global fields out of SEAICE.h into seaice_growth.F and
1477       make them 2D (FICE/QNETO/ ...)
1478     - remove FO (it is the same as QNETO)
1479     - introduce a few local fields to avoid modifying external fields such
1480       as atemp, etc.
1481    
1482    checkpoint58s_post
1483    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1484      changed exf_set_gen.F so that
1485        genperiod=0 means input file is one time-constant field and
1486        genperiod=-12 means input file contains 12 monthly means
1487    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1488      this affects truncation error ; generate new output file for exp. which
1489      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1490        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1491        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1492        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1493        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1494        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1495    o start implementation of deep-atmosphere and anelastic formulation
1496    o verification: remove 2nd copy of input files and use script "prepare_run"
1497      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1498    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1499    o profiles: fix for multithreaded case
1500    
1501    o diagnostics: rename few diags:
1502      s/'PRESSURE'/'RCENTER '/g
1503      s/'TICE    '/'oceFreez'/g
1504      s/'TAUX    '/'oceTAUX '/g
1505      s/'TAUY    '/'oceTAUY '/g
1506      s/'SWFLUX  '/'oceQsw  '/g
1507      s/DIFx/DFxE/g
1508      s/DIFy/DFyE/g
1509      and add few ocean-forcing diagnostics:
1510      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1511    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1512      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1513      as actual snow thickness.  It now refers everywhere to effective snow
1514      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1515    
1516    checkpoint58r_post
1517    o modifications to pkg/seaice/growth.F, which change results of
1518      lab_sea experiment: fixes pertain to melting snow over open water, to
1519      masking EVAP under sea ice, and to using the correct AREA variable for
1520      computations of EVAP, PRECIP, HSNOW, and GHEFF
1521    o add ability to read bathy, salt, and theta using MNC (off by def)
1522    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1523      both are turned off by default and do no change any results
1524    o seaice advection with pkg/thsice: a step toward the use of non-linear
1525      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1526    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1527      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1528      in natl_box (affects results @ truncation level: update output.txt)
1529    o multi-threading and IO:
1530      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1531      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1532        (needed to work with SingleCpuIO): tested in all verif. exp.
1533    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1534      affects the results (but none of the verification test uses this scheme).
1535    o Adding some pkg/diagnostics capability to pkg/seaice
1536      (will certainly be subject to changes)
1537    o ctrl: adding new control variables:
1538      lwflux, lwdown, evap, snowprecip, apressure, runoff
1539    
1540    checkpoint58q_post
1541    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1542      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1543      high_res_cube configuration by 4% on Columbia.
1544    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1545      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1546      dynamical allocation (seems to work in multi-threaded).
1547    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1548      single CPU io) so that TAF does not have to see EESUPPORT.h
1549    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1550    
1551    checkpoint58p_post
1552    o obcs: stop if obcs is used with useCDscheme = .true.
1553    o shelfice:
1554     - fix a sign error so that no slip at shelfice interface works
1555     - remove stop for combination non-hydrostatic code and shelfice. That does
1556       not mean, that the results are correct, but at least they are numerically
1557       stable
1558    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1559    o added adjoint exch routined for all exch*3d* routines
1560      and updated flow directives
1561    
1562    checkpoint58o_post
1563    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1564      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1565    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1566      and clean-up reading/writing of pickup files.
1567    o fix local version of read/write pickup (NH part) in rotating_tank/code
1568    o simplify EXCH interface:
1569     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1570     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1571    o added the regrid package
1572    o shelfice:
1573     - add a simple boundary layer scheme to reduce noise
1574     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1575    
1576    checkpoint58n_post
1577    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1578       local variable (not in common block).
1579    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1580      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1581      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1582        to work with SingleCpuIO.
1583    o add "_d 0" to real constant of pkg/cfc subroutines ;
1584       update exp. cfc_exemple & tutorial_cfc_offline output files.
1585    o multi-threading and IO:
1586      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1587        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1588      - barrier before and after reading.
1589      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1590      - avoid using MDS_WRITELOCAL for LAND pkg output.
1591      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1592        common-block variables ; Allows multi-threading with master-thread IO.
1593    o change default MAX_NO_THREADS from 32 to 4 ;
1594      and stop cleanly when MAX_NO_THREADS is too small.
1595    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1596    
1597    checkpoint58m_post
1598    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1599       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1600    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1601       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1602       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1603    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1604        add MITgcm_tutorials (= code + all the tutorials)
1605    o ecco, option to compute cost for total ssh (mean+anom)
1606    o consistent with addition of ptracer and ssh in pkg/profiles
1607    o profiles: adding ptracer and ssh
1608    o testreport: change multi-test output-file name
1609      (from output.txt.{name} to output.{name}.txt)
1610    o profiles: now ok for mutli-tiles case
1611    o seaice: add 4 parameters for different advection schemes for area,
1612      (effective) seaice thickness, enthalphy, and snow height. Their default
1613      is the standard parameter SEAICEadvScheme
1614    o calc_gw:
1615     - add cosFacU in zonal viscous flux (harmonic.visc.).
1616     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1617       of tutorial_plume_on_slope.
1618    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1619    o calc_gw: true flux-form, account for horizontal grid spacing.
1620      update rotating_tank results, but not plume_on_slope (affected at
1621      truncation level, 11 digits).
1622    
1623    checkpoint58l_post
1624    o calc_gw:
1625     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1626     - remove side-drag for now (need to fix it); update plume_on_slope results.
1627     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1628    o commit code to make SST/SSS weights spatially variable
1629      (based on either variable in-situ or variable initial T/S weights)
1630    o pkg/ecco:
1631      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1632        now based on horizontally varying weights wthetaLev, wsaltLev
1633      * cost_averagesflags now returns year indices in addition to day, month
1634      * sflux balance is performed on annual basis
1635        (sflxumm, sfluxmm2, bal_sfluxmm)
1636      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1637        including separate counting and multipliers
1638    o pkg/rbcs
1639      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1640    
1641    checkpoint58k_post
1642    o testreport:
1643     - always build in dir. "build" (if not there, mkdir build instead of building
1644       & running in input)
1645     - run in dir run (if it exists), in build otherwise.
1646     - call prepare_run (if input/prepare_run exists)
1647     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1648    o pkg/exf modifications to interpolation and rotation routines for more
1649       reasonable treatment of North Pole singularity: for tracers North Pole
1650       value is set to northernmost zonal-mean value, for zonal velocity it is
1651       set to zero, and for meridional velocity it is set to northernmost value.
1652    o pkg/exf/exf_check_range.F
1653     - add tile index to diagnostics and move stop statement to the very
1654       end of the routine.
1655    o pkg/diagnostics: (diagnostics_main_init.F)
1656      define title of isomorphic variables according to the current config.
1657    o pkg/thsice with pkg/seaice dynamics:
1658    - fix domain of computation (interior only, required for exf) and do exchanges
1659    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1660    o towards a standard way of dealing with multi-threading in MONITOR
1661      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1662    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1663       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1664    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1665    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1666    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1667       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1668    o tracer advection:
1669     - clean-up and simplify calc_common_factors.F
1670     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1671       advection subroutine (but still not used within DST advection S/R)
1672    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1673    
1674    checkpoint58j_post
1675    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1676      from file (collects calls previously in FORWARD_STEP)
1677    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1678    o adjoint store dir. adjusted accordingly
1679    o genmake2
1680      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1681    
1682    checkpoint58i_post
1683    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1684      on wind stress (SEAICEstressFactor defaults to 1.)
1685    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1686      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1687    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1688      on CS-grid: no longer loosing mass.
1689    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1690    o pkg/ggl90: fix sloppy output and fix a bug
1691    o pkg/seaice: added SEAICEuseEVPpickup parameter
1692      - Set to false in order to start EVP solver with
1693        non-EVP pickup files when using SEAICEuseEVP
1694      - fix sign error in diffusion in seaice_calc_rhs
1695    
1696    checkpoint58h_post
1697    * Modifications for bottom topography control
1698      o replace hFacC by _hFacC at various places
1699      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1700      o add non-self-adjoint cg2d_nsa
1701      o update autodiff support routines
1702      o re-initialise hfac after ctrl_depth_ini
1703      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1704    * Adding verification for 5x5 box (4-layer) bottom topography control
1705    
1706    checkpoint58g_post
1707    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1708       used for mean seasonal cycle, mean diurnal cycle); add an example
1709       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1710    o pkg/ggl90:
1711      - add parameter (minimum surface kinetic energy)
1712      - fix bug (avoiding division by zero)
1713    o couple pkg/thsice to pkg/seaice:
1714      - modify advection in seaice to accomodate new scalar fields to be advected
1715      - only muliDimAdection scheme work with seaice/thsice
1716      - mapping of thsice-variables to seaice-variables, back and forth
1717      - does not break the verification experiments, but does not give the
1718        desired results either
1719    o pkg/seaice
1720      - make (default) second order advection a bit less confusing?
1721    
1722    checkpoint58f_post
1723    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1724      to pkg/seaice):
1725      - new routines thsice_map_exf and thsice_get_exf provide the interface
1726      - add an additional formal parameter to thsice_solve4temp
1727    o pkg/exf:
1728      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1729      - correct Stefan-Boltzmann constant
1730      - new parameter for longwave surface emittance
1731      - separate some stuff from exf_bulkformulae into new routines  
1732        exf_radiation, exf_wind
1733      - add new parameters and constants: longwave emissivity for ocean, ice
1734        and snow, evaporation parameters over ice
1735      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1736        either wind from stress or stress from wind
1737    o pkg/thSIce:
1738    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1739    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1740       and THSICE_CALC_THICKN
1741    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1742    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1743      to make debugging easier.
1744    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1745    o pkg/bulk_force:
1746      - clean-up comments and parameters ;
1747      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1748    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1749      generate new output for test-experiment: aim.5l_cs.thSI
1750    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1751      testreport accordingly
1752    
1753    checkpoint58e_post
1754    o SEAICE_CGRID adjoint done
1755    o R_STAR adjoint implemented.
1756      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1757      * need to sort out init. of h0facc, etc.
1758    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1759      to be able to use it in pure forward.
1760    
1761    checkpoint58d_post
1762    o upgrade simple test-experiment to tutorial example:
1763     step.1: duplicate the experiment and (step.2) will remove the old copy.
1764      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1765      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1766      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1767      tutorial_global_oce_biogeo    <- copy of dic_example
1768      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1769      tutorial_plume_on_slope       <- copy of plume_on_slope
1770      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1771      tutorial_global_oce_optim     <- empty for now (David ?)
1772      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1773     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1774    o correct a sign problem in cost_scat.F
1775    o obcs and ptracers: fix boundary conditions for advections schemes
1776      with larger stencil
1777    o thsice adjoint: start
1778    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1779      completeness
1780    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1781      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1782    o ptracers adjoint:
1783      * avoid extensive recomputatations
1784      * fix missing re-init. of gptr (missed by TAF)
1785    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1786      me to turn off the excessive output to STDOUT that this package produces
1787    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1788      and add those terms in Vector-Invariant formulation.
1789    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1790      if the control period (xx_hfluxperiod etc) is 0
1791    o in profiles pkg, clean routines and fix details
1792    o in ecco pkg, reading ssh data:
1793      fix problem in case the model does not start at iter0=0
1794    o fix mnc-pickup/restart for ptracers
1795    o new package prifiles:
1796      code to compute profile-based cost by Gael Forget
1797      (modifs in ecco, ctrl, autodiff)
1798    o Benign bug fix in initialization (spotted by M. Mazloff) of
1799      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1800    
1801    checkpoint58c_post
1802    o adjoint: finish NLFS adjoint and provide reference output in
1803      verification/global_ocean.90x40x15/results_ad_nlfs
1804    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1805      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1806      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1807      with SEAICE_CGRID defined.
1808    o move calendarDumps from "data" to "data.cal" and clean-up the code
1809      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1810    o add useEXF & useCAL flags (for now, set in hard-coded way)
1811    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1812      (were missing in NH mode, and wrong in quasihydrostatic mode).
1813      waiting for Chris updated version of calc_gw to add those CALLs.
1814    o fix bug in quasihydrostatic S/R ;
1815      add a test for this option: global_ocean.90x40x15.qshyd
1816    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1817      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1818    o add on/off flag useOffLine for package OFFLINE
1819    o seaice:
1820      - modify advection so that it works also on the C-grid
1821      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1822        problem in multi-tile runs with C-grid
1823      - add flags for clipping ice velocities and/or masking solver forcing
1824      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1825        C-grid solver
1826      - added a few comments to seaice_diffusion.F
1827      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1828        are now exclusive)
1829      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1830        required re-ordering the code a little:
1831       + make DAIRN global variable (defined in SEAICE)
1832       + move computation of the viscosities eta and zeta into a new separate
1833         routine (because I need to recompute them in seaice_ocean_stress.F)
1834    
1835    checkpoint58b_post
1836    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1837      update output.txt of exp. aim.5l_cs.thSI
1838    o various mnc cleanups and improvements:
1839      + shrink lookup tables by factor of ~4
1840      + better error reporting when running out of lookup space
1841      + able to handle longer path/file names (up to 500 chars)
1842    o adjoint:
1843      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1844      - TBD: "hidden" mom_vecinv recomp. in dynamics
1845    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1846     (allow to differentiate between forcing components using new integer flags:
1847      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1848     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1849  o ecco  o ecco
1850    - enable trend removal from SSH anomaly obs.    - enable trend removal from SSH anomaly obs.
1851  o adjoint  o adjoint
# Line 949  o add two new packages Line 2791  o add two new packages
2791    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2792    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2793      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2794      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2795  o add offline package  o add offline package
2796  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2797    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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