/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.341 by mlosch, Thu Sep 2 09:21:55 2004 UTC revision 1.1165 by jmc, Thu Oct 1 23:28:01 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg obcs:
8     - go through NH code only if nonHydrostatic=T
9     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
10    o pkg ctrl
11     - make obcs as control parameter work also with useSingleCPUio
12     - replace a few sny and snx by Ny and Nx to be consistent with
13       ctrl_set_globfld_x/yz.F
14    o pkg seaice
15     - re-introduce global field frWtrAtm for the case of
16       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
17     - catch the case of an empty filename in seaice_cost_init_fixed.F
18    o pkg ecco:
19     - small bug fixes in the_main_loop
20      . fix order of monitor arguments
21      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
22      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
23        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
24     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
25       imbalance diagnostics for wmean_h/sflux = 0
26     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
27     - catch the case of empty filenames in ecco_cost_init_fixed.F
28       and ecco_readparms.F
29     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
30       to make this statement meaningfull in ecco_cost_weights.F
31    o pkg zonal_filt:
32      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
33      - when using rStar, filter uVel*hFacW instead of uVel
34       (tested without topography: fix a Pb of growing instability with NLFS)
35    o pkg/aim/thsice:
36     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
37      (works as SST restoring)
38    o pkg/thsice:
39     -add specific parameter for salt restoring in slab mixed-layer
40       (by default equal to the temperature restoring)
41    
42    checkpoint61v
43    o pkg/kpp:
44     -add double diffusive contributions as a hack, turned off by default
45      for now, and the code can be excluded with a CPP-flag
46      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
47     -add a verification experiments to "vermix" to test this code
48    o pkg/mom_common:
49      Move computation of length scales to mom_init_fixed.F (avoid recomputation
50      at each time-steps*levels).
51    o pkg/layers:
52      Created a new package for computing volume fluxes in temperature or
53      [not yet implemented] density layers, e.g. for calculating residual
54      overturning circulations.
55    o pkg/diagnostics:
56      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
57    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
58    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
59      To avoid mixing type (RS/RL) of input/output array argument,
60      replace single mixed-type array with a pair from each type (RS/RL).
61    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
62      is now implemented for all pkgs (previously only done for the main pickup)
63    
64    checkpoint61u
65    o pkg/obcs:
66      - change OB?eta from _RS to _RL and put them into a separate commen block
67      - add code to read OB?eta from a file via obcs_prescribe_read: the code
68        compiles and does not destroy any other experiments, the data is read
69        properly, but the code is not tested in actual applications
70    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
71      create a meaningful unit attribute for the time coordinate variable
72    o pkg/ebm: add plenty of missing "_d 0" ;
73       update results of experiment global_ocean_ebm (fwd + adjoint tests)
74      Notes: several pieces of code only works for (very) specific set up
75       (domain size, lat range, etc ...); should be documented & stop if one
76       of those assumptions is not meet.
77    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
78       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
79          and offline_exf_seaice (seaicetd + adjoint).
80    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
81       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
82        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
83    o few changes to pass when compiling with strick checking of arguments
84       across S/R (allow to find few bugs in S/R calls).
85    o pkg/seaice:
86     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
87       2d-fields, for slightly better performance
88    
89    checkpoint61t
90    o pkg/seaice:
91     - remove unused variables in seaice_evp
92     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
93    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
94       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
95       each processor opens a different file (a fix from Matt).
96    o cg2d:
97       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
98       this reduces number of EXCH calls by 2 when using exch2.
99       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
100       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
101    o pkg/thsice:
102       add code for Near Infra-Red albedo (from Jeff)
103       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
104    o ini_model_io:
105       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
106       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
107       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
108    
109    checkpoint61s
110    o pkg/exch2 (exch2_rxN_cube*):
111       remove last BARRIER (no need to synchronise after getting data from shared
112       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
113    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
114      and generate new output (for the 2 tests) using default rotationPeriod.
115    o pkg/exch2:
116      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
117        (was already the case with AUTODIFF_EXCH2 defined)
118      - add bj in exch2 arrays and S/R.
119      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
120        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
121    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
122      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
123        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
124      - verification experiment natl_box.longstep
125    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
126      allow different versions of ifort (8 or 9) and different versions
127       of mpi (mpich or mpich2) to be used with the same optfile.
128      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
129       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
130    o pkg/seaice:
131      fix previous modif (3-level field removed) for old-pickup reading
132    
133    checkpoint61r
134    o pkg/seaice:
135     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
136      1. introduce fields for time step (N-1)
137      2. do not use levels 2 and 3 anymore (but keep them)
138      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
139         includes changes to pkg/thsice/thsice_get_velocity.F,
140         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
141         pkg/obcs/obcs_apply_uvice.F.
142     - completely remove code for leap-frog time stepping for second order
143       advection
144     - adjusted adjoint accordingly;
145       gradient checks have improved by an order of magnitude!
146    
147    checkpoint61q
148    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
149     - the boundary conditions along open boundaries are unclear, because the
150       associated masks are set to zero and are thus treated as closed when
151       applying the slip-boundary conditions.
152     - move initialisation of grid variables from seaice_init_varia to _fixed
153    o adding doc/diags_changes.txt
154    o model/src:
155      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
156       to avoid "_diags" naming if no relation to pkg/diagnostics.
157      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
158       file and only call PLOT_FIELD_XYZ if debugMode=T.
159      remove few PLOT_FIELD_XY calls outside initialisation.
160      remove few unnecessary BARRIER.
161    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
162      of salt_plume package in Southern Ocean
163    o pkg/thsice:
164     - fix hOceMxL in overlap (needed for sea-ice advection);
165       update output of experiment global_ocean.cs32x15.icedyn.
166    o pkg/seaice:
167     - make the (placeholder-)tracer IceAge a little more meaningful
168      by avoiding ridging of age due to convergent ice flow
169     - add diagnostics for surface temperature, atmospheric and oceanic
170       heat flux, and atmospheric and oceanic ice growth
171    
172    checkpoint61p
173    o eesupp (global_max & global_sum):
174     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
175     - remove starting & endding barrier (no longer needed)
176    o pkg/mdsio, writelocal:
177       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
178       (remove the STOP): uses shared buffer IO to store data from all threads
179       and then let master-thread write nThreads tiles.
180    o pkg/mdsio (read/write field):
181     - tiled IO done in 1 piece (all levels at a time);
182     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
183     - multi-threaded: allow to read/write local (non-shared) array
184       (was already working with singleCpuIO ; now works also without);
185       => no longer needs barrier call after reading a file (added inside
186       mds_read/write field).
187     - move barrier calls outside gather/scatter_2d to mds_read/write_field
188    o pkg/obcs/exf
189      - exf_getffieldrec.F: add a few ". _d 0" and
190                            add code to catch the case fldperiod = 0.  
191      - obcs_precribe_read.F: change if statements so that they match
192                              the variable type (_RL)
193      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
194        exf_iprec) as part of namelist EXF_NML_01
195    o pkg/mdsio:
196      - read/write tiled (local) files: read/write 1-level tile chunk at a time
197        (instead of segment of length sNx); expected to speed up tiled IO.
198    o pkg/exch2:
199      - take buffer copy from/to array out of S/R exch2_send/recv into new
200        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
201        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
202      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
203      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
204        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
205        including Topology header file (and common blocks).
206      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
207        remove 2nd exch call in exch2_s3d_rx (no longer needed).
208      - document S/R arg. list (+ update some comments)
209    o pkg/seaice:
210      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
211        temperature and humidity over sea ice based on climatological values.
212      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
213        of LSR (this change is expected to change the results slightly because now
214        it uses slightly difference moduli from the second last LSR solution, but
215        that is more consistent with the stress computations; this part of the code
216        is not tested in the verification experiments)
217      - fix diagnostics for flux of ice in case of B-grid
218      - turn strain rates eij and press into global fields within global
219        common block in SEAICE.h for more straighforward diagnostics
220      - fix diagnostics for principal stress components, press, zeta, eta
221        to give something meaning full
222    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
223      new output (all 4 tests) using default rotationPeriod.
224    o pkg KPP:
225      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
226      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
227        and normal grid from 1 to Nr)
228    o Fix computations of L4rdt in mom_calc_visc.F
229    o eesupp:
230      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
231      should be called before a "stop" if we know that all process are going
232      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
233    
234    checkpoint61o
235    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
236    o model/src/ini_curvilinear_grid.F:
237       compute angleSin/CosC when they are not read from a file
238    o pkg/seaice:
239       add pseudo time stepping for LSOR
240    o pkg/exch2:
241       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
242    o pkg/seaice:
243       Adding separate sea ice albedo, drag coefficients, and HO in Southern
244       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
245    o SingleCpuIO:
246       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
247    o pkg/seaice:
248       put exchanged variable in (local) common block for MPI+Multi-Threads
249       to work (necessary with exch1, and for now with exch2 too).
250    o verification: to get more experiments tested with mpi, mth and mpi+mth,
251      change tiling of:
252       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
253       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
254      update output of exp:
255       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
256       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
257      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
258                       (note: output.txt generated on faulks using only 1 tile)
259    o eesupp & mdsio (SingleCpuIO):
260     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
261       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
262       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
263     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
264     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
265       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
266    o pkg/exch2:
267     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
268       read parameter file "data.exch2" if it exists; otherwise try default regular
269       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
270     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
271       with new code (not to be used, just as a backup solution).
272     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
273       in utils/exch2/input.
274    
275    checkpoint61n
276    o eesupp & mdsio (SingleCpuIO):
277      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
278        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
279        receive real*4 array (instead of real*8) to read/write 32.bit files.
280        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
281         and remove new mapping S/R)
282    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
283      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
284        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
285        when using exch2. Add S/R to map global io-buffer to global model array.
286      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
287    
288    checkpoint61m
289    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
290      and add 3 other S/R for other types (R4,R8,RS).
291      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
292    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
293     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
294     - reduce number of macro definitions (keep only those which are used);
295       can always call directly the corrresponding S/R if needed.
296     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
297       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
298     Fixed wrong type of arg in:
299       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
300       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
301     To fix: global_sum of var in common block is wrong (multi-threaded) in:
302       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
303     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
304    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
305      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
306    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
307    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
308      edges are closed (zero depth); might happen with "blank tiles";
309      for now, disabled if using OBCS.
310    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
311      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
312    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
313      to reduce length of 1.D array print in STDOUT.
314    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
315      + use 48 tiles (16x8): this will allow to test "blank tiles".
316    o start to test MPI + multi-threaded (change testreport to skip tests
317      where number of tiles do not match).
318    o genmake2: add option "-omp" to turn on Open-MP ;
319      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
320    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
321      and keep the original tile numbering. Note: compatible with old
322      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
323    
324    checkpoint61l
325    o Overlaps had been forgotten in calculating ijk keys : fixed
326    o fix cyrus makedepend for gcc 4.4
327    o experiment fizhi-cs-aqualev20:
328      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
329      and generate new output. Note: new output is much closer to the old
330      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
331      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
332    o pkg/fizhi:
333     - change to avoid indices going deliberately over array-bounds
334     - remove unnecessary MPI stuff
335     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
336     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
337       does not go over array-bounds and therefore returns reliable output.
338     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
339       this S/R has 4 output arguments, which are used inside "get_alarm";
340       when it is called with the same variable "ndum" in place of several
341       output arguments, this produces weird side effect inside "get_alarm"
342      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
343       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
344       address) and produces error.
345    o tools/gemake2: (March 27-29 2009)
346      with option "-mpi": link *_mpi files from "MODS" dir (this is what
347      testreport does).
348    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
349    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
350       update lab_sea.lsr & lab_sea.salt_plume results
351    o pkg/seaice:
352      Major overhaul of the LSOR solver: change discretization from original
353      finite differences to finite volume. The old routine is still in the
354      file seaice_lsr.F and can be turned on with the CPP-flag
355      SEAICE_OLD_AND_BAD_DISCRETIZATION
356      Along with this change, the discretization of the strain rates is changed.
357      The same flag turns on the old discretization in seaice_calc_strainrates.F
358      All verification experiments with seaice are affected (except for
359      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
360      results by setting the above flag.
361      Further changes involve changes in defaults:
362      - ALLOW_FLOODING is defined and turned on by default
363      - SEAICEadvSnow = .true. is now the default
364      - SEAICEadvSalt = .true. is now the default
365      - SEAICEadvAge  = .true. is now the default
366      - SEAICE_clipVelocities  = .false. is now the default
367                                         (as per J. Zhang's recommendation)
368      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
369        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
370      - seaice_growth: replace computation of UG by a simple copy from wspeed
371    
372    checkpoint61k
373    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
374      seaice_lsr: fixed a few metric terms,
375                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
376                  add more debugging diagnostics
377      seaice_evp: removed superfluous many metric terms of FV discretization
378                  of stress divergence
379                  affects lab_sea, lab_sea.hb87
380      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
381                  of stress divergence for non-evp solver
382                  (this part is not tested anywhere)
383      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
384                  they were effectively only half slip
385                  affects lab_sea.hb87
386      updated all relevant verification experiments (except lab_sea//output_adm.txt
387        which was left over, but fails at level 7 & 6)
388    
389    checkpoint61j
390    o pkg/seaice: turn a few hard wired parameters into run time parameters
391    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
392      time in seconds as promised by the usints in seaice_monitor and exf_monitor
393    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
394      that are not cubed-sphere grids
395    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
396    o pkg/ctrl:
397      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
398    o non-hydrostatic (calc_gw.F):
399      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
400      update output of exp. global_ocean.cs32x15.viscA4
401    o remove backward compatibility for thetaMin,phiMin
402      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
403    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
404      interpolated wind field not only for curvilineargrid=.true., but also
405      for a rotated grid (rotateGrid=.true.)
406    o pkg/exf: add capability to bypass interpolation for runoff
407      by setting yet another CPP-flag
408    o eesupp/src, B-grid exchange:
409      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
410    o autodiff
411      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
412      allows to switch to single-prec common blocks;
413      corresponding switch occurs in tamc.h, integer isbyte
414      TAF store directivs "byte" and "kind" seem equivalent;
415      Most tamc.h have been updated correspondingly.
416    
417    checkpoint61i
418    o autodiff:
419      fix autodiff_sore/_restore indices for obcs
420      (spotted by I. Hoteit, M. Mazloff)
421    o pkg/autodiff, pkg/ctrl:
422      Add flag to reduce all tapelev I/O to single-prec.
423      In data.ctrl set
424        doSinglePrecTapelev = .TRUE.
425    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
426      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
427    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
428      real fresh water flux (not yet)
429    o pkg/mdsio & rw:
430     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
431     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
432    o pkg/flt:
433     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
434       init_fixed & ini_varia.
435     - clean-up & simplify linear interpolation S/R:
436       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
437     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
438     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
439     - add vert. coordinate & horiz. indices to output files.
440     - change vertical position in initial condition, from index to depth [m].
441     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
442       (easier to get to a curvilinear grid) ; delX,delY no longer used.
443    o pkg/ggl90: a few modifications:
444     - fix bottom boundary condition, and interpolation of KappaE
445       near top and bottom
446     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
447     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
448     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
449    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
450      (maintain temporary backward compatibility, until next checkpoint)
451    
452    checkpoint61h
453    o pkg/diagnostics with "periodic averaging diagnostics":
454      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
455    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
456    o pkg/obcs: fix loop ranges for balancing code
457    o pkg/flt:
458     - improve criteria for finding which tile owns a float.
459     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
460    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
461      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
462      with ocean biogeo)
463    o pkg/flt:
464     - do some cleaning and fix the restart ;
465     - add output.txt in flt_example/results to get this pkg tested.
466    o genmake2: add an EXTENDED_SRC option and flag.
467       for now, cannot be turned on on command line (only through genmake_local)
468    o pkg/mdsio: read/write vector:
469     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
470     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
471       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
472     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
473      (drop to 4 digits matching for grad). But this test does not look very
474      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
475    
476    checkpoint61g
477    o pkg/flt:
478      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
479       + make OPTIONS file more standard.
480      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
481      - fix _BYTESWAPIO CPP-Flag
482      - standard reading of file-parameter "data.flt"
483      - fix argument list of S/R FLT_RESTART
484      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
485    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
486    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
487      a still unfixed compiler/optimization bug
488    
489    checkpoint61f
490    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
491      update results of global_ocean.cs32x15.icedyn test.
492    o move getcon.F from model/src to pkg/fizhi.
493    o pkg/exf: add parameter for extrapolation of temp up to the surface
494       and option to prevent negative evap (in bulk_largeyeager04 only).
495    o Prather Advection scheme: fix tracer conservation for divergent flow
496      (e.g., when using NonLin Free-Surface).
497    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
498    o gmredi (Visbeck-variable-K):
499     - add more parameters to Visbeck-variable-K.
500     - use a 5 points average for dSigmaR in Visbeck-K calculation
501       (more "homogenous": same stencil and same weights as in dSigmaH)
502     - update output of ideal_2D_oce experiment.
503    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
504      (#undef REAL4_IS_SLOW)
505     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
506       coordinate variable
507     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
508       (surface forcing fields), removes some of the functionality
509     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
510     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
511       probably not all: copy _RS surface flux fields to RL field before
512       calling DIAGNOSTICS_FILL
513     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
514       real*4 (CALL EXCH_*_RS) versions.
515     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
516       (generate new output).
517    
518    checkpoint61e
519    o gmredi (Visbeck-variable-K):
520      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
521      - change computation of Visbeck-K where Slope > Smax :        
522        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
523        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
524    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
525      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
526    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
527    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
528      does not become too large (to avoid precision problems in implicit-diffusion
529      solver); update ideal_2D_oce output.
530    o pkg ggl90:
531      - in ggl90_cal.F: compute only one set of visc/diff, used to
532        step forward TKE/T/S/momentum
533      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
534        have Prandlt =1)
535    o gmredi (fm07):
536      - add lower limit on Transition layer thickness + lower limit on 1/lambda
537      - allow to set few more params from data.gmredi
538    o pkg ggl90:
539          - add missing sqrt(2) factor in computation of mixing length
540            scale in ggl90_calc.F
541            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
542    
543    checkpoint61d
544    o adjoint modifs
545      - adapt to new field rhoInSitu
546      - allow to revert from StoreDynVars2D, StoreDynVars3D
547        to individual fields
548        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
549    o store 3-D (in-situ) density in commom block (DYNVARS.h)
550     - save 1 rho computation.
551     - no longer modify T & S inland when using down_slope pkg.
552    o gad_som : allow to switch to SOM advection for T & S without corresponding
553      pickup files (using new S/R: MDS_CHECK4FILE).
554    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
555      (for useSingleCpuIO to work in multi-threaded)
556    o pkg/shelfice:
557     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
558       with SHELFICEtopoFile in data.shelfice
559     - move code for reading ice shelf topography and modifying hFacC into separate
560       subroutines of the shelfice package
561     - separate initialisation of "fixed" and "variable" variables
562     - kTopC is not (yet) replaced by kSurfC, although this is possible
563    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
564    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
565      and rename:
566      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
567      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
568    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
569    
570    checkpoint61c
571    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
572      to add mass source/sink of fluid in the interior (3-D generalisation
573      of oceanic real-fresh water flux).
574    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
575    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
576    o new pkg: down_slope
577      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
578      - presently, modify T & S inland (dwnslp_calc_rho.F).
579        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
580      - implementation for ocean in P-coords not tested.
581      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
582    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
583      (to facilitate conversion of oceanic pkg to p-coordinate).
584    o change FIND_RHO to FIND_RHO_2D :
585      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
586    o new pkg: cheapaml
587    
588    checkpoint61b
589    o exch2:
590      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
591      - no longer depend on the order sequence (N,S,E,W).
592      - 3rd exchange no longer needed (tested with 24 tiles).
593      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
594      - exch_UV_A-grid readily available (but not yet tested).
595      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
596      (both are no longer needed) in exch_uv: no effect in forward run; but
597       get truncation error differences with adjoint exch.
598    o exch2:
599     - change index-bounds storage (moved from target to local tile,
600       more intuitive this way) ; rename/remove some variables.
601     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
602    
603    checkpoint61a
604    o exch2/matlab-topology-generator:
605      fix bug in index bounds for N-S internal exchange (hard to tell if this
606      had any effect on the solution).
607    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
608      is exceeded
609    o testreport: modify syntax of awk, so that it works also with
610      awk, and not only with nawk and gawk
611    
612    checkpoint61
613    o autodiff
614      Change default for TAF usage by removing argument '-nonew_arg'
615      This changes TAF subroutine argument list (ordering of active var.)
616      Omission of this flag leads to incompatibility w.r.t. TAMC
617      To restore TAMC-compatibility, need following modifs:
618      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
619      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
620      Tested TAF version is 1.9.22
621      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
622    
623    checkpoint60
624    --->>> This is the last checkpoint for which generating the adjoint
625    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
626    --->>> by default.
627    --->>> Future checkpoints will ommit this flag by default.
628    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
629    o pkg/grdchk: Add gradient check to etan0 perturbations.
630    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
631    o pkg/autodiff: more flexibility in zeroadj.
632      model/src: modifying do_oceanic_phys.F accordingly.
633    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
634    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
635      special setup of gmredi for which the adjoint is stable
636      enough for parameter optimization.
637    o bridging the gap between eddy stress and GM.
638      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
639          along with a change in CPP option (now ALLOW_EDDYPSI).
640      -> when using GM w/ GM_AdvForm:
641          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
642          is applied either in the tracer Eq. or in momentum Eq.
643          depending on data.gmredi (intro. GM_InMomAsStress).
644      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
645      The key modifications are in model/src/taueddy_external_forcing.F
646      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
647    
648    checkpoint59r
649    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
650      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
651      fix option to read coriolis(@ cell-corner) from files with CS-grid.
652    o pkg/mnc: add some attributes to standard 1D-coordinate variables
653    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
654      mass points, when using mnc for output
655      - add runtime parameter (missing_value, missing_value_int) to override
656        default (which is the value of getcon('UNDEF'))
657    o pkg/mnc: prepare mnc for the actual use of missing values with the
658      diagnostics package: small fix in mnc_cw_readwrite.template and more
659      initialisation of never used fields
660      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
661      versions
662    o pkg/thsice/thsice_ini_vars.F added default initial values so that
663      thermodynamics sea ice solver does not blow up when some initial fields
664      are missing.
665    o move from external_forcing_surf.F to ini_forcing.F
666      the p-coord. hack consisting in using pLoad to set phi0surf ;
667      update output of tutorial_global_oce_in_p (affected @ truncation level).
668    o Freshen up a bit hs94.1x64x5, notably:
669      remove rotationPeriod and tRef=5*0. (adjoint only), and add
670      exactConserv=.TRUE.
671    o pkg/generic_advdiff:
672      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
673      applies to files where Temperature & Salinity 2nd Order moments are used.
674    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
675      this uses a dynamically allocated internal state data structure
676      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
677      and requires a fortran 90 compiler
678    
679    checkpoint59q
680    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
681       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
682    o Refresh tutorial_global_oce_biogeo, notably:
683      - change bathymetry (put back seamounts in ACC, use hFacs)
684      - change EOS (POLY3 --> JMD95Z)
685      - use Bryan-Lewis vertical diffusivity
686      - use multidimensional advection
687      - remove old virtual virtual in dic pkg, now done through ptracer pkg
688      - change a couple of parameters in dic pkg
689    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
690    o pkg/obcs: change default to OBCSfixTopo = .true.,
691      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
692      - replace "debugMode" with "debugLevel .GE. debLevB"
693    o implementation of TAF directives for gchem,cfc,dic
694    o remove "exp5" (replaced by tutorial_deep_convection).
695    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
696      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
697      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
698      --> changes results in exp4, seaice_obcs
699    o tutorial_deep_convection :
700      update the set-up and increase resolution and domain size ; start
701      from pseudo initial conditions = output at t=120mn in order to see
702      something happening when running testreport.
703    o pkg/seaice: add os7mp as an advection scheme
704                  add check for advection schemes
705                  add a flag for restoring T and S underneath sea ice
706    o pkg/my82: add netcdf-support and diagnostics
707    o thsice pkg:
708      - Now hsMax limits snow height by turning it into ice following
709        flooding scheme (and now conserving energy)
710      - Slight rewriting of the formula in thsice_calc_thick.F
711      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
712      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
713    
714    checkpoint59p
715    o gchem / dic / cfc :
716      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
717      - add new parameter files: "data.dic" & "data.cfc" ;
718      - various re-arrangement in initialisation & header file ;
719      - fix tutorial_global_oce_biogeo for multi-threaded test.
720    o pkg/dic: test for "pickup_dic" file when restarting ;
721      if no pickup-file, can restart with a re-initialised pH (same as it did
722      before) providing pickupStrictlyMatch is set to False.
723    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
724      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
725    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
726      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
727    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
728     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
729       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
730    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
731       scheme to use for vorticty-term ;
732     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
733       (with default selectVortScheme, return to original discretisation)
734     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
735    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
736    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
737      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
738      also fix diagnostics VISCAHW & VISCA4W.
739    
740    checkpoint59o
741    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
742    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
743      move a few statemens out the main loop into separate loops
744    o pkg/shelfice:
745      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
746        (kg/m^2/s), does not break tests, because in verification/isomip,
747        rhoConstFresh=rhoConst (by accident)
748      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
749      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
750        new file model/src/seawater.F, so that they are available for all pkgs.
751      - convert potential temperature into in-situ temperature. This changes the
752        isomip tests => update tests
753    o add a flag writePickupAtEnd (default=true) to be able to suppress
754      writing a pickup at the last timestep
755    o tools/mpack-1.6 :
756      - disable automake (not working) and autoconf (not needed).
757      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
758        also cleaner with much less compilation warnings.
759    o pkg/profiles:
760      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
761      (for "less than 32 characters name" compiler requirement)
762    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
763      conditions that have a different sampling frequency than S/T/U/V obcs
764    o pkg/diagnostics (stats-diags):
765      - fix global Min/Max in case 1 processor get only empty tiles
766    o genmake2: replace (4 times)
767         make genmake_tc_1.o >> genmake_warnings 2>&1
768      with
769         COMM="$CC $CFLAGS -c genmake_tc_1.c"
770         echo $COMM >> genmake_warnings
771         $COMM >> genmake_warnings 2>&1
772      to make genmake2 always see the value of CC as specified in the optfile.
773    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
774      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
775      - modify verification advect_cs test to test SOM-advection on CS-grid.
776    o pkg/ctrl:
777      - Rewrite of ctrl_map_ini_ecco.F,
778        introducing a generic routine (ctrl_map_ini_gen.F).
779      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
780    
781    checkpoint59n
782    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
783      number in dedicate array "hdiag":
784      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
785        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
786      - many small changes (integer format) for large number of diagnostics
787      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
788        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
789    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
790      usingSphericalGrid, this allows to define the rotated grid coordinates
791      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
792      geographical coordinates according to the inverse of the rotation defined
793      by the Euler angles, so that Coriolis parameter and online-interpolation by
794      exf works with the geographical coordinates on XC/YC/XG/YG.
795      Naturally, this feature does not work with all packages, so some
796      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
797      profiles), because there the coordinates are assumed to be regular
798      spherical grid coordinates.
799    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
800      - introduce isopycnal diffusion coefficient control.
801    o tools/adjoint_options:
802      - additional control vector components.
803    o pkg/mnc: have mnc create marginally meaning full coordinate variables
804      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
805    o pkg/mypackage:
806      - add example of read/write pickup for state-var ;
807      - add entry points to the main code for state-vars diags & write-pickup.
808    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
809      transitions for useExfYearlyFields
810      - add new subroutine that determines the file to read from for
811        use*YearlyFields = .TRUE. and .FALSE.
812      - add a verification experiment to global_with_exf that tests
813        useExfYearlyFields with USE_EXF_INTERPOLATION defined
814    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
815      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
816      subroutines (which could be generated from a template, because they are
817      almost identical), for now they are included in obcs_prescribe_read.F for
818      simplicity
819    o pkg/exf:
820      - add a little more diagnostic to exf_interp_read (in analogy to
821        mds_read_field, can be turned off with debugLevel < debugLevA=1)
822      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
823        ugly but fast by unrolling short inner loops, inserting a unroll=8
824        directive in routine lagran, and splitting a loop and making do while the
825        outermost loop (the latter requires the intoduction of index arrays)
826    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
827    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
828      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
829    o verification/seaice_obcs: updated for restart test and latest options
830    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
831      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
832      for now this is only available for the C-grid code and also within
833      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
834    
835    checkpoint59m
836    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
837      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
838    o gad_som : fix flux output (& diagnostics) to have same units as other  
839      advection scheme fluxes (was previously multiplied by deltaT).  
840    o added verification/seaice_obcs both to test seaice open boundaries
841      and to provide an example matlab scrpt for generating them
842    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
843    o pkg/salt_plume: clean up salt_plume_frac.F to
844      remove redundancy in PlumeMethod 1 and 4
845    o pkg/kpp: added saltplume diagnostics
846    o pkg/obcs and pkg/seaice:
847      - do not set uice and vice to zero when OB*icefile are unspecified
848      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
849      - moved seaice tracer obcs after call to seaice_growth
850    o pkg/salt_plume: added various options for salt plume depth
851      criterion and for vertical distribution of the salt
852    
853    checkpoint59l
854    o pkg/ptracers: new version of ptracers pickup:
855      read meta file and write only fields which are needed to restart.
856      ( same logic as main pickup file ; also using pickupStrictlyMatch )
857    o pkg/seaice:
858      - add timescale for melting due to warm mixed layer as a means of
859        setting SEAICE_availHeatFrac more conveniently
860      - add a CPP-flag/runtime parameter check for flooding algorithm
861      - reformulated availHeat in seaice_growth.F to be independent of AREA
862    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
863      unit changes
864    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
865    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
866      SX vector computer.
867    o pkg/seaice:
868      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
869        seaice forcing fields can now be read only through pkg/exf
870      - removed some unused halos
871    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
872    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
873      or U/VICE from U/VWIND before computing U/VSTRESS
874    
875    checkpoint59k
876    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
877      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
878    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
879      all experiments pass when compile with un-initialised var. checking option.
880    o added pkg/salt_plume
881    o script to test restart (for now, in MITgcm_contrib/jmc_script)
882    o pkg/seaice: new read/write pickup version.
883      read meta file and write only fields which are needed to restart.
884      ( same logic as main pickup file ; also using pickupStrictlyMatch )
885    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
886    o lab_sea.hb87: modify the domain & update output.hb87.txt :
887      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
888      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
889      process. Fixed here by closing the domain at the Northern boundary.
890    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
891    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
892      a set of consecutive levels in/from a 3-D array.
893    o pkg/ptracers:
894      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
895      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
896    
897    checkpoint59j
898    o in pkgs: dic, obcs, offline, rbcs:
899      standard way to compute coeff. for time interpolation between 2 time reccords
900      which retains full precision (& make results less dependent on compiler).
901      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
902    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
903      packages instead of reading ice cover and wind speed separately
904    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
905     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
906      to allow to compile customized code before the update)
907    o cleaning-up:
908      - fix CPP instruction syntax in pkg/obcs
909      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
910        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
911      - fix some threads issue in IO parts.
912    o pkg/dic:
913      - add tons of "_d 0" (--> much better testreports !)
914       and then update outputs of tutorial_global_oce_biogeo
915    o pkg/mom_fluxform:
916      add a special version of momentum advection intended to conserve momentum
917      next to a bathymetry step or a coastline edge. (default = off = #undef)
918    o new read/write pickup version:
919      - for now, only implemented for main (mdsio) pickup file.
920      - write out only what is needed to restart; merge pickup_nh , pickup_ph
921        and main pickup together.
922      - read meta file; read only what is needed to restart; stop if a field
923        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
924        if it make sense (even if the restart is not perfect).
925      - if no meta file, assume that pickup to read corresponds exactly to
926        a pickup that would currently be written.
927      - read pickup written in the old format (until checkpoint59i) if it
928        recognizes an old meta file (no field-list).
929      - add a meta file in exp. which starts from a pickup: 2 cases:
930        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
931         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
932        b) a meta file describing the content of the associated pickup file
933         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
934    o pkg/mdsio & pkg/rw:
935      - new routine to read a meta file ; new set of routine to read
936        Multiple-fields file (with meta file).
937    o added open boundary conditions capability for seaice
938        HSNOW, HSALT, UICE, and VICE
939    
940    checkpoint59i
941    o adjoint:
942      * fix multiDimAdvection adjoint
943        (partial recomputation problem by TAF for fVerT(:,:,kDown)
944        and comlev1 size definition (maxpass vs. max. number of tracers)
945      * verification/global_ocean.90x45x15 adjoint now tests
946        NLFS and multiDimAdvection using DST3 (=30)
947      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
948    o pkg/kpp: add "_d 0" to real constant (if missing);
949      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
950      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
951    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
952      for internal parameters related to restart process (formerly from PARAMS.h)
953      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
954    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
955      as argument. (only atm2d & obcs write_pickup have not yet been updated)
956    o pkg/monitor:
957      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
958      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
959      - account for deep Atmosphere factor and density factor (anelastic)
960    o added open boundary conditions capability for seaice HEFF and AREA
961    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
962      thermodynamics
963      - requires a little reorganization, which affects the testreport results
964        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
965        so that now the conservative form is tested
966      - add a few comments
967    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
968    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
969    o add new diagnostics to seaice: advective, diffusive fluxes (only for
970      multidim-advection, for scheme 2 they are not filled) and transports,
971      thermodynamic growth rates
972    o change units of EmPmR (inside the code, + within coupling interface)
973      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
974      Affects results @ truncation level (cg2d match) and update output of
975       experiments: lab_sea(6), global_ocean.90x40x15(10),
976      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
977      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
978      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
979      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
980    
981    checkpoint59h
982    o pkg/exf:
983      - improve vectorization by moving if-statement out of loops in
984        exf_mapfields, exf_radiation
985      - exf_bulkformulae.F: introduce 2D fields and vectorize code
986    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
987    o testreport:
988      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
989        monitor & update offline_exf_seaice exp. output.
990      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
991    o pkg/seaice:
992      - bug fix in the evp solver: boundary conditions were affected be
993        masking of zMax/zMin (changes results)
994      - minor bug fix in boundary conditions in seaice_calc_strainrates
995        (changes results for no_slip)
996      - seaice_lsr.F: make interpolation of eta dependent on boundaries
997      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
998      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
999        stress formulation and no-slip boundary conditions
1000    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1001      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1002    o pkg/seaice: a first HSALT time stepping equation has been checked in
1003    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1004      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1005      without requiring DO-IF statements
1006    o pkg/thsice:
1007      use continuous power-law function for partition of energy between lateral
1008      melting/freezing and thinning/thickening ; old code using step function
1009      still available with #undef THSICE_FRACEN_POWERLAW
1010      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1011    o testreport: change AD testing : check against results/output_adm.txt
1012      using same scripts as for forward test.
1013    
1014    checkpoint59g
1015    o adjoint testing: in preparation for changing testreport:
1016      - output format: cost and grad written on separated lines
1017      - ad output results in directory "results" (instead of "results_ad")
1018    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1019    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1020    o pkg/ecco: allow user defined cost function contributions
1021    o testreport:
1022      Allow to choose (per experiment) the list of tested output variables
1023       and the main variable (used to issue a pass/FAIL ) ;
1024      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1025      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1026      Also modify printing of summary:
1027       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1028       b) echo the list of tested variables in the individual summary.txt of
1029          each experiment.
1030    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1031      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1032      (but still depend on the tile decompostion of the domain).
1033    o pkg/seaice: change a discretization detail to make the B-grid code
1034      "more symmetric". This change is likely to remove all "ridges/leads" that
1035      where quasi-aligned with the grid in B-grid solutions. It may also be
1036      the solution to the stress coupling issues with the B-grid.
1037    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1038      remove .cvsignore from input dir. (since testreport no longer run here).
1039    o pkg/thsice:
1040     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1041     - fix reshaping of sea-ice just after advection:
1042       melt all the ice only if ice-volume is too small.
1043     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1044       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1045     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1046    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1047      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1048    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1049      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1050      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1051      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1052      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1053      -> update output.txt
1054    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1055     this affects truncation error: -> update output.txt of exp:
1056      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1057      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1058    
1059    checkpoint59f
1060    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1061    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1062      a bounded range (in forward mode)
1063    o pkg/ecco, ctrl, autodiff and mom_common:
1064     internal parameter controls, completements of implementations
1065    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1066    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1067      (not seem any difference in testing results).
1068    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1069       at face corners.
1070    o pkg/generic_advdiff:
1071     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1072      loop range indices for computing vertical advection tendency
1073      and do the calculation in the interior only (no overlap) ;
1074      for now, only implemented for SOM advection (to save CPU time).
1075     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1076    o exch2 adjoint
1077      First set of changes:
1078      - add exch2 hand-written adjoint templates
1079      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1080        This will require cleanup in pkg/autodiff/*.F
1081        (changed routines currently kept separate in verif. code/)
1082      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1083        that used to hide exch2 or cubed-sphere specific code
1084        (commented via 'cph-exch2')
1085    o pkg/seaice
1086      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1087    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1088       output of global_ocean.cs32x15.thsice .
1089    
1090    checkpoint59e
1091    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1092      for B-grid vector (not yet tested) and C-grid vector (<- only used
1093      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1094    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1095      (#ifdef ALLOW_SALT_PLUME)
1096    o gather_2d/scatter_2d: removed halo regions
1097    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1098      scheme and the corresponding test case (under front_relax dir). For now,
1099      only available with Skew-flux form and not yet tested in realistic set-up.
1100      adjoint: store directives updated, but gradient checks deteriorated,
1101      so maybe GM/Redi adjoint is now broken.
1102    o seaice adjoint
1103      * add AREA, HEFF, HSNOW as control variable
1104        (should not change lab_sea results)
1105      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1106    o pkg/seaice:
1107      * added computation of saltFlux in seaice_growth;
1108        For time being, sea ice salinity is assumed constant
1109        contribution of snow flooding to freshening of sea ice is neglected.
1110        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1111        defaults to 0.0 in order to maintain backward compatibility.
1112        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1113      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1114      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1115        heat content used to melt or grow ice
1116      * commented out cap of HICE: it helps keep ice thinner
1117      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1118      * applied OBCS T/S mask to HEFFM sea ice mask
1119    
1120    checkpoint59d
1121    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1122     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1123     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1124    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1125     and change default value of parameter "GM_Small_Number";
1126     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1127       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1128       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1129    o pkg/ecco: cost function when applying pkg/smooth to controls
1130    o pkg/ctrl: add forcingPrecond run time parameter
1131    o pkg/seaice:
1132     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1133     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1134       changes verification/lab_sea
1135     - rearrange implicit part of u-equation in LSR solver to make it easier to
1136       read, understand, and debug. This causes changes at the truncation level.
1137     - fix (serious) bug in the boundary conditions (sign error in the implicit
1138       part) of the LSR solver. Changes all LSR results.
1139     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1140       is initilized with small values - does not change lab_sea results.
1141     - added HsnowFile initialization capability
1142    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1143     initialization of pkg/smooth and application to control vector
1144    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1145    o dependencies: pkg/profiles requires pkg/cal
1146    o pkg/profiles:
1147     - added option ALLOW_PROFILES_GENERICGRID
1148         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1149         that interpolation information (grid points and coefficients) is provided
1150         within the netcdf input files.
1151         -> sample matlab scripts can be found in MITgcm_contrib/gael
1152         that allow you to prepare netcdf input files.
1153     - also modified: cleaner include statements, cleaner error print statements,
1154       cleaner stops when error, and more tests of the netcdf input files consistency.
1155    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1156    o pkg/seaice:
1157     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1158       requires a new routine: seaice_diagnostics_fill.F
1159     - make sure that seaice does not move if not forced (pressure replacement
1160       method, Hibler and Ip, 1995), changes results
1161     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1162     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1163       It is turned off by default (=-1.), because it changes the results.
1164     - make it possible to read AREA from a file, too.
1165    
1166    checkpoint59c
1167    o add S/R and diagnostics for oceanic mixed-layer depth
1168    o move GMRedi call after all vertical mixing schemes (including KPP)
1169    o pkg/thsice:
1170     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1171      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1172    o pkg/obcs:
1173     - bug fix for balance code
1174    o pkg/seaice:
1175      - allow values of SEAICE_elasticParm > 1
1176      - add new parameter SEAICE_evpTauRelax as an alternative
1177        to SEAICE_elasticParm
1178      - make lsr boundary conditions free slip (by default), changes result
1179      - add code for no slip boundary conditions for lsr
1180      - set minimum of zeta to zero (and not 4e8) (changes results)
1181      - add a cap on AREA after advecting AREA if seaice_growth is not called
1182    o change calculation of Visbeck K:
1183      - no longer depend on tapering scheme; instead, compute slope (limited
1184        by GM_maxSlope). this is equivalent to what was comuted before with
1185        clipping or linear tappering.
1186      - fix vertical averaging (wrong by 1/2 level)
1187      - leave the old version (but will not be maintained) within
1188        #ifdef OLD_VISBECK_CALC / #endif
1189      - update output of exp. ideal_2D_oce
1190    o change error catch in calc_r_star to improve vectorization
1191    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1192      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1193    o adjoint:
1194      Re-organized adjoint checkpointing according to Matt Mazloff
1195      (but with modifs/completions/cleanups)
1196      Storing is now bundled into large arrays to optimized I/O
1197      (and second step in cleanup of the_main_loop)
1198    
1199    checkpoint59b
1200    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1201      - export/import (between ocean & coupler) fields needed for ocean DIC.
1202    o pkg/seaice:
1203      - get rid of three more exchanges seaice_calc_viscosities (required
1204        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1205      - bug fix in seaice_ocean_stress (update of lab_sea required)
1206      - reduce loop boundaries to necessary minimum also in seaice_evp
1207      - go back to the old way of computing deltaC/Z as the adjoint likes that
1208        better
1209    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1210      passive tracer to an Age Tracer) + update output.txt
1211    o pkg/exf:
1212      - implement A-grid / C-grid selection for wind-stress input files.
1213      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1214      for now, in exf_bulk_largeyeager04.F only :
1215      - change implementation for case where windspeed + 2. components wind-stress
1216        are read-in. AND use rhoConstFresh to convert evap.
1217    o pkg/seaice:
1218      - use correct EXCH_UV for wind-forcing (on A-grid).
1219      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1220        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1221    o pkg/exf:
1222      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1223      EXF_INTERPOLATION:
1224      - merge global_with_exf/code version of exf_interp_read.F
1225        to the main code ;
1226      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1227        reading the file ; Important: This options needs to be defined to recover
1228        previous code.
1229        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1230      - no longer loose real*8 precision along the way when using exf_iprec=64.
1231    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1232      - change discretisation of evp-solver in order to avoid another exchange
1233        (changes lab_sea) and clean up a little
1234      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1235        help the adjoint (this also changes the results slightly)
1236      - add a few "_d 0" where they had been missing in seaice_evp.F
1237      - cleaning up: remove unused seaice_calc_rhs.F
1238    o pkg/exf: some cleaning-up:
1239      - change various "constants" into runtime parameters
1240      - cleaned-up Large&Yeager04 routine which should eventually
1241        replace exf_bulkformulae.F (changed names of S/R and CPP)
1242        and merged various ALLOW_ATM_WIND options
1243     only used with thsice pkg (in thsice_get_exf.F):
1244      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1245        which are used when useStabilityFct_overIce=TRUE (= the default)
1246      - change default values of ice & snow emissivity and scale downward LW
1247        by ice & snow emissivity.
1248    o pkg/thsice:
1249     fix few little problems, in thsice_calc_thickn.F:
1250      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1251      - melt only laterally if hIce < hThinIce (as the comments say)
1252      and in thsice_extend.F:
1253      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1254      - start to form ice as soon as the minimum ice-volume is reachable.
1255     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1256      and cpl_aim+ocn
1257    o pkg/kpp
1258     - move computation of surface related input fields to KPP into a new
1259       subroutine kpp_forcing_surf.F
1260     - remove wrong (within bi,bj loops) EXCH calls.
1261     - little cleaning (add argument myThid in last position, cvs header ...)
1262     - for now, fix conservation problem by exchanging KPPviscAz (may not
1263       be the best fix)
1264    o pkg/seaice
1265     - check for inconsistent evp parameter/cpp-flag combination
1266     - remove leftover errIO flat for obsolete name list error handling
1267    o OpenAD
1268     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1269    
1270    checkpoint59a
1271    o pkg/seaice: some parameter clarifications and a little bit of clean up
1272    o pkg/thsice: rename run-time parameters:
1273       himin       -> hIceMin
1274       himin0      -> hThinIce
1275       hihig       -> hThickIce
1276       i0          -> i0swFrac
1277       transCoef   -> bMeltCoef
1278       frac_energy -> fracMelting
1279      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1280       with default values (for now) that do not change the results.
1281      remove old version of thsice vars advection in pkg/seaice.
1282    o in FFIELDS.h:
1283      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1284      - make pLoad & sIceLoad always available (but still only used if
1285         ATMOSPHERIC_LOADING is #define).
1286    o pkg/kpp: replaced _KPP_RL with _RL
1287    o bug fixes for vertical diffusivity computations when both KPP and
1288        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1289        are no longer updating the vertical diffusivity array
1290        (passed as argument) but are (re-) setting those arrays.
1291    o pkg/seaice: fix bug in evp solver, while doing that
1292      - change (improve?) discretization of stress computations for both
1293        cgrid-lsr and evp solver
1294      - add a new routine to compute strain rates
1295      - the above changes lab_sea results
1296      - add no slip conditions for evp solver (off by default), lsr-version
1297        may follow
1298      - fix exchange for shear at Z-points (does not change lab_sea)
1299      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1300        (to force the user to pick a time step since there is not "safe" way
1301        of choosing it)
1302      - add principal stress diagnostics
1303      - rearrange fields for evp a little to avoid having to call a: too many
1304        exchanges and b: exchanges for stress trensor components which we do
1305        not have.
1306      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1307        of evp, complete rewrite for lsr case (latter is does not yet work
1308        in all cases)
1309    o pkg/kpp: add code to have mixing in shelf ice caverns
1310      - add myThid to all kpp routines (long overdue)
1311    
1312    checkpoint59
1313    o pkg/exf:
1314      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1315        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1316      - move exf header files from lower_case.h to UPPER_CASE.h ;
1317        add missing cvs Header & Name
1318      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1319      - add namelist param. selectStressGridPosition, exf_monFreq
1320      - retire many _CLIM routines, and remove data.exf_clim
1321        + params moved to data.exf
1322        + climsst, climsss now handled by exf_set_gen, i.e.
1323          climss?period=0 refers to constant field,
1324          climss?period=-12 to monthly forcing
1325      - split up namelists in data.exf
1326    o pkg/seaice:
1327      - remove seaice_exch and seaice_exch_uv
1328      - remove superfluous exchange of theta
1329      - add myThid to seaice_budget_ocean/ice
1330      - add new interface for atmospheric wind forcing (C-grid only)
1331        + new routine
1332        + two new field (taux, tauy for stress over ice)
1333        + removed one global field (DAIRN) for C-grid case only
1334    o pkg/thsise
1335      - 2nd set of modifs for thsice adjoint in conjunction with exf
1336    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1337    
1338    checkpoint58y_post
1339    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1340      vertical diffusivity, similar to that in MOM4; turned on using
1341      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1342      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1343    o Added capability for 3D specification of background vertical diffusion
1344      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1345      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1346      "data" file that contains the 3D vertical diffusivity coefficients.
1347    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1348      - add code within pkg thsice to advect & diffuse sea-ice fields
1349      similar to (and will replace) what has been added in  seaice_advdiff.F,
1350      but: - conserving Mass, Heat & Salt.
1351           - better when using non-linear advection scheme (not yet fully tested)
1352           - can also be used in atmospheric set-up (for now, only the diffusion).
1353    
1354    checkpoint58x_post
1355    o IO option for global-file compact format:
1356      - add options when generating topology (utils/exch2/matlab-topology-generator)
1357      - add I/O capability (pkg/mdsio).
1358      - adapt utils/matlab/rdmds.m to read this format.
1359      for now long-line format not yet supported by pkg/mdsio (& exch2).
1360    o shelfice: add a few diagnostics
1361    
1362    checkpoint58w_post
1363    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1364      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1365      (and replace horiVertRatio in NH code).
1366      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1367                         and tutorial_plume_on_slope (sensitive to truncation)
1368    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1369      directly to drive seaice model (C-grid only)
1370    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1371     - reintroduce computation of wind from stress,
1372     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1373       mass points to avoid tau = 0
1374     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1375    o rdmnc.m: make it work with "global" files created with gluemnc
1376    o rdmnc.m : some improvements in dealing with singleton dimension
1377      (tested on all testreport mnc output files).
1378    o genmake2: disable pkg/profiles if netcdf test fails.
1379    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1380    o move call to cal_readparms up to make calendar parameters/variable available
1381      to all packages
1382    
1383    checkpoint58v_post
1384    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1385      useDynP_inEos_Zc tested.
1386    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1387    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1388      and portions thereof.  See read_cs.txt for description and examples.
1389    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1390      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1391      following the great-circle arc between those 2 points.
1392    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1393      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1394    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1395     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1396     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1397     - still needs work (not working with some options ; efficiency to improve)
1398       and serious testing.
1399     - use this scheme for temperature & salinity in 2 advection test exp.:
1400       advect_xy & advect_xz, respectively.
1401    
1402    checkpoint58u_post
1403    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1404    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1405    o testreport: add option "-skipdir" to skip some test.
1406    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1407      momentum calculation.
1408    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1409    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1410      remove checkpoint.F and the_correction_step.F (no longer used);
1411      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1412    o add option (linFSConserveTr) to correct for tracer source/sink due to
1413      Linear Free surface
1414    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1415    o pkg/thsice: fix reading mnc-pickups
1416    
1417    checkpoint58t_post
1418    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1419    o pkg/mdsio:
1420     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1421       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1422       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1423     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1424     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1425       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1426     - new S/R (to replace MDSWRITEMETA), which allows to write more
1427       informations (variable names, time ...) to meta files.
1428     - modify rdmds.m to give back the meta file content.
1429    o pkg/diagnostics: change vertical interpolation to be safer, and more
1430       flexible (define p-levels to interpolate to in data.diagnostics);
1431      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1432       diagnostic pointer.
1433    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1434    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1435    o fix multi-category seaice:
1436     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1437       SEAICE_MULTICATEGORY
1438     - fix short wave heat flux
1439    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1440       and allow to use EVP solver. Change forward lab_sea: test both EVP
1441       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1442    o Initial check-in of lab_sea adjoint
1443      (very similar to natl_box_adjoint/code_seaice)
1444      * used C-grid and EVP solver
1445      * used KPP, GM/Redi
1446      * uses inAdExact=.TRUE.
1447      * gradient checks fail for both ADM and TLM
1448        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1449        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1450        issue is related to forward mismatch between g77 an ifort
1451    o pkg/seaice: overhaul of thermodynamics
1452     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1453     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1454     - move a few global fields out of SEAICE.h into seaice_growth.F and
1455       make them 2D (FICE/QNETO/ ...)
1456     - remove FO (it is the same as QNETO)
1457     - introduce a few local fields to avoid modifying external fields such
1458       as atemp, etc.
1459    
1460    checkpoint58s_post
1461    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1462      changed exf_set_gen.F so that
1463        genperiod=0 means input file is one time-constant field and
1464        genperiod=-12 means input file contains 12 monthly means
1465    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1466      this affects truncation error ; generate new output file for exp. which
1467      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1468        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1469        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1470        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1471        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1472        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1473    o start implementation of deep-atmosphere and anelastic formulation
1474    o verification: remove 2nd copy of input files and use script "prepare_run"
1475      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1476    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1477    o profiles: fix for multithreaded case
1478    
1479    o diagnostics: rename few diags:
1480      s/'PRESSURE'/'RCENTER '/g
1481      s/'TICE    '/'oceFreez'/g
1482      s/'TAUX    '/'oceTAUX '/g
1483      s/'TAUY    '/'oceTAUY '/g
1484      s/'SWFLUX  '/'oceQsw  '/g
1485      s/DIFx/DFxE/g
1486      s/DIFy/DFyE/g
1487      and add few ocean-forcing diagnostics:
1488      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1489    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1490      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1491      as actual snow thickness.  It now refers everywhere to effective snow
1492      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1493    
1494    checkpoint58r_post
1495    o modifications to pkg/seaice/growth.F, which change results of
1496      lab_sea experiment: fixes pertain to melting snow over open water, to
1497      masking EVAP under sea ice, and to using the correct AREA variable for
1498      computations of EVAP, PRECIP, HSNOW, and GHEFF
1499    o add ability to read bathy, salt, and theta using MNC (off by def)
1500    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1501      both are turned off by default and do no change any results
1502    o seaice advection with pkg/thsice: a step toward the use of non-linear
1503      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1504    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1505      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1506      in natl_box (affects results @ truncation level: update output.txt)
1507    o multi-threading and IO:
1508      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1509      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1510        (needed to work with SingleCpuIO): tested in all verif. exp.
1511    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1512      affects the results (but none of the verification test uses this scheme).
1513    o Adding some pkg/diagnostics capability to pkg/seaice
1514      (will certainly be subject to changes)
1515    o ctrl: adding new control variables:
1516      lwflux, lwdown, evap, snowprecip, apressure, runoff
1517    
1518    checkpoint58q_post
1519    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1520      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1521      high_res_cube configuration by 4% on Columbia.
1522    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1523      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1524      dynamical allocation (seems to work in multi-threaded).
1525    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1526      single CPU io) so that TAF does not have to see EESUPPORT.h
1527    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1528    
1529    checkpoint58p_post
1530    o obcs: stop if obcs is used with useCDscheme = .true.
1531    o shelfice:
1532     - fix a sign error so that no slip at shelfice interface works
1533     - remove stop for combination non-hydrostatic code and shelfice. That does
1534       not mean, that the results are correct, but at least they are numerically
1535       stable
1536    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1537    o added adjoint exch routined for all exch*3d* routines
1538      and updated flow directives
1539    
1540    checkpoint58o_post
1541    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1542      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1543    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1544      and clean-up reading/writing of pickup files.
1545    o fix local version of read/write pickup (NH part) in rotating_tank/code
1546    o simplify EXCH interface:
1547     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1548     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1549    o added the regrid package
1550    o shelfice:
1551     - add a simple boundary layer scheme to reduce noise
1552     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1553    
1554    checkpoint58n_post
1555    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1556       local variable (not in common block).
1557    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1558      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1559      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1560        to work with SingleCpuIO.
1561    o add "_d 0" to real constant of pkg/cfc subroutines ;
1562       update exp. cfc_exemple & tutorial_cfc_offline output files.
1563    o multi-threading and IO:
1564      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1565        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1566      - barrier before and after reading.
1567      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1568      - avoid using MDS_WRITELOCAL for LAND pkg output.
1569      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1570        common-block variables ; Allows multi-threading with master-thread IO.
1571    o change default MAX_NO_THREADS from 32 to 4 ;
1572      and stop cleanly when MAX_NO_THREADS is too small.
1573    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1574    
1575    checkpoint58m_post
1576    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1577       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1578    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1579       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1580       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1581    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1582        add MITgcm_tutorials (= code + all the tutorials)
1583    o ecco, option to compute cost for total ssh (mean+anom)
1584    o consistent with addition of ptracer and ssh in pkg/profiles
1585    o profiles: adding ptracer and ssh
1586    o testreport: change multi-test output-file name
1587      (from output.txt.{name} to output.{name}.txt)
1588    o profiles: now ok for mutli-tiles case
1589    o seaice: add 4 parameters for different advection schemes for area,
1590      (effective) seaice thickness, enthalphy, and snow height. Their default
1591      is the standard parameter SEAICEadvScheme
1592    o calc_gw:
1593     - add cosFacU in zonal viscous flux (harmonic.visc.).
1594     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1595       of tutorial_plume_on_slope.
1596    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1597    o calc_gw: true flux-form, account for horizontal grid spacing.
1598      update rotating_tank results, but not plume_on_slope (affected at
1599      truncation level, 11 digits).
1600    
1601    checkpoint58l_post
1602    o calc_gw:
1603     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1604     - remove side-drag for now (need to fix it); update plume_on_slope results.
1605     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1606    o commit code to make SST/SSS weights spatially variable
1607      (based on either variable in-situ or variable initial T/S weights)
1608    o pkg/ecco:
1609      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1610        now based on horizontally varying weights wthetaLev, wsaltLev
1611      * cost_averagesflags now returns year indices in addition to day, month
1612      * sflux balance is performed on annual basis
1613        (sflxumm, sfluxmm2, bal_sfluxmm)
1614      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1615        including separate counting and multipliers
1616    o pkg/rbcs
1617      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1618    
1619    checkpoint58k_post
1620    o testreport:
1621     - always build in dir. "build" (if not there, mkdir build instead of building
1622       & running in input)
1623     - run in dir run (if it exists), in build otherwise.
1624     - call prepare_run (if input/prepare_run exists)
1625     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1626    o pkg/exf modifications to interpolation and rotation routines for more
1627       reasonable treatment of North Pole singularity: for tracers North Pole
1628       value is set to northernmost zonal-mean value, for zonal velocity it is
1629       set to zero, and for meridional velocity it is set to northernmost value.
1630    o pkg/exf/exf_check_range.F
1631     - add tile index to diagnostics and move stop statement to the very
1632       end of the routine.
1633    o pkg/diagnostics: (diagnostics_main_init.F)
1634      define title of isomorphic variables according to the current config.
1635    o pkg/thsice with pkg/seaice dynamics:
1636    - fix domain of computation (interior only, required for exf) and do exchanges
1637    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1638    o towards a standard way of dealing with multi-threading in MONITOR
1639      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1640    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1641       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1642    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1643    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1644    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1645       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1646    o tracer advection:
1647     - clean-up and simplify calc_common_factors.F
1648     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1649       advection subroutine (but still not used within DST advection S/R)
1650    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1651    
1652    checkpoint58j_post
1653    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1654      from file (collects calls previously in FORWARD_STEP)
1655    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1656    o adjoint store dir. adjusted accordingly
1657    o genmake2
1658      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1659    
1660    checkpoint58i_post
1661    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1662      on wind stress (SEAICEstressFactor defaults to 1.)
1663    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1664      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1665    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1666      on CS-grid: no longer loosing mass.
1667    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1668    o pkg/ggl90: fix sloppy output and fix a bug
1669    o pkg/seaice: added SEAICEuseEVPpickup parameter
1670      - Set to false in order to start EVP solver with
1671        non-EVP pickup files when using SEAICEuseEVP
1672      - fix sign error in diffusion in seaice_calc_rhs
1673    
1674    checkpoint58h_post
1675    * Modifications for bottom topography control
1676      o replace hFacC by _hFacC at various places
1677      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1678      o add non-self-adjoint cg2d_nsa
1679      o update autodiff support routines
1680      o re-initialise hfac after ctrl_depth_ini
1681      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1682    * Adding verification for 5x5 box (4-layer) bottom topography control
1683    
1684    checkpoint58g_post
1685    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1686       used for mean seasonal cycle, mean diurnal cycle); add an example
1687       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1688    o pkg/ggl90:
1689      - add parameter (minimum surface kinetic energy)
1690      - fix bug (avoiding division by zero)
1691    o couple pkg/thsice to pkg/seaice:
1692      - modify advection in seaice to accomodate new scalar fields to be advected
1693      - only muliDimAdection scheme work with seaice/thsice
1694      - mapping of thsice-variables to seaice-variables, back and forth
1695      - does not break the verification experiments, but does not give the
1696        desired results either
1697    o pkg/seaice
1698      - make (default) second order advection a bit less confusing?
1699    
1700    checkpoint58f_post
1701    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1702      to pkg/seaice):
1703      - new routines thsice_map_exf and thsice_get_exf provide the interface
1704      - add an additional formal parameter to thsice_solve4temp
1705    o pkg/exf:
1706      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1707      - correct Stefan-Boltzmann constant
1708      - new parameter for longwave surface emittance
1709      - separate some stuff from exf_bulkformulae into new routines  
1710        exf_radiation, exf_wind
1711      - add new parameters and constants: longwave emissivity for ocean, ice
1712        and snow, evaporation parameters over ice
1713      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1714        either wind from stress or stress from wind
1715    o pkg/thSIce:
1716    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1717    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1718       and THSICE_CALC_THICKN
1719    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1720    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1721      to make debugging easier.
1722    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1723    o pkg/bulk_force:
1724      - clean-up comments and parameters ;
1725      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1726    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1727      generate new output for test-experiment: aim.5l_cs.thSI
1728    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1729      testreport accordingly
1730    
1731    checkpoint58e_post
1732    o SEAICE_CGRID adjoint done
1733    o R_STAR adjoint implemented.
1734      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1735      * need to sort out init. of h0facc, etc.
1736    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1737      to be able to use it in pure forward.
1738    
1739    checkpoint58d_post
1740    o upgrade simple test-experiment to tutorial example:
1741     step.1: duplicate the experiment and (step.2) will remove the old copy.
1742      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1743      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1744      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1745      tutorial_global_oce_biogeo    <- copy of dic_example
1746      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1747      tutorial_plume_on_slope       <- copy of plume_on_slope
1748      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1749      tutorial_global_oce_optim     <- empty for now (David ?)
1750      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1751     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1752    o correct a sign problem in cost_scat.F
1753    o obcs and ptracers: fix boundary conditions for advections schemes
1754      with larger stencil
1755    o thsice adjoint: start
1756    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1757      completeness
1758    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1759      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1760    o ptracers adjoint:
1761      * avoid extensive recomputatations
1762      * fix missing re-init. of gptr (missed by TAF)
1763    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1764      me to turn off the excessive output to STDOUT that this package produces
1765    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1766      and add those terms in Vector-Invariant formulation.
1767    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1768      if the control period (xx_hfluxperiod etc) is 0
1769    o in profiles pkg, clean routines and fix details
1770    o in ecco pkg, reading ssh data:
1771      fix problem in case the model does not start at iter0=0
1772    o fix mnc-pickup/restart for ptracers
1773    o new package prifiles:
1774      code to compute profile-based cost by Gael Forget
1775      (modifs in ecco, ctrl, autodiff)
1776    o Benign bug fix in initialization (spotted by M. Mazloff) of
1777      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1778    
1779    checkpoint58c_post
1780    o adjoint: finish NLFS adjoint and provide reference output in
1781      verification/global_ocean.90x40x15/results_ad_nlfs
1782    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1783      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1784      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1785      with SEAICE_CGRID defined.
1786    o move calendarDumps from "data" to "data.cal" and clean-up the code
1787      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1788    o add useEXF & useCAL flags (for now, set in hard-coded way)
1789    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1790      (were missing in NH mode, and wrong in quasihydrostatic mode).
1791      waiting for Chris updated version of calc_gw to add those CALLs.
1792    o fix bug in quasihydrostatic S/R ;
1793      add a test for this option: global_ocean.90x40x15.qshyd
1794    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1795      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1796    o add on/off flag useOffLine for package OFFLINE
1797    o seaice:
1798      - modify advection so that it works also on the C-grid
1799      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1800        problem in multi-tile runs with C-grid
1801      - add flags for clipping ice velocities and/or masking solver forcing
1802      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1803        C-grid solver
1804      - added a few comments to seaice_diffusion.F
1805      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1806        are now exclusive)
1807      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1808        required re-ordering the code a little:
1809       + make DAIRN global variable (defined in SEAICE)
1810       + move computation of the viscosities eta and zeta into a new separate
1811         routine (because I need to recompute them in seaice_ocean_stress.F)
1812    
1813    checkpoint58b_post
1814    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1815      update output.txt of exp. aim.5l_cs.thSI
1816    o various mnc cleanups and improvements:
1817      + shrink lookup tables by factor of ~4
1818      + better error reporting when running out of lookup space
1819      + able to handle longer path/file names (up to 500 chars)
1820    o adjoint:
1821      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1822      - TBD: "hidden" mom_vecinv recomp. in dynamics
1823    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1824     (allow to differentiate between forcing components using new integer flags:
1825      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1826     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1827    o ecco
1828      - enable trend removal from SSH anomaly obs.
1829    o adjoint
1830      - a fix for PmEpR when #undef EXACT_CONSERV
1831      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1832      - try to fix "hidden" recomp. in forward_step for NLFS
1833        (NLFS seems broken sometimes after I checked it in)
1834    o seaice:
1835     - add c-grid version of the dynamic solver:
1836       + three new routines that are the c-grid substitute lsr, dynsolver
1837         and ostres
1838       + put a few fields that were local to dynsolver into global common
1839         blocks, so that I can move the computation of stresses etc into
1840         seaice_lsr (saves coding but may break the adjoint).
1841     - replace more hardwired parameters by runtime parameters
1842     - add ice masks that mask the rhs of the implicit solvers where there
1843       is no ice (commented out in seaice_dynsolver, because i am not sure
1844       if this works properly), eventually this should replace the clipping
1845       of ice velocities in seaice_dynsolver to +/-40cm/s.
1846    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1847      include it only where its needed
1848    o move balancing of fluxes before the call of external_forcing_surf
1849    o seaice:
1850      - correct units of turning angles (now they are really in degrees)
1851      - move computation of GWATX/Y out of main routine into dynsolver
1852      - initialize GWATX/Y in seaice_init
1853    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1854      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1855    o seaice: add runtime flags for turning angles (default to zero)
1856    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1857      and trend from exf forcing and ctrl control adjustments
1858    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1859      (since checkpoint57x_post)
1860    o change the default rotation period to 86164.s = the Earth rotation
1861    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1862      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1863    o seaice advection: add code for choosing between the default (2nd order
1864      central differences) and multiDim advection schemes provided by
1865      pkg/generic_advdiff
1866    o seaice:
1867      - removed all references to SEAICE_GRID.h fields from
1868        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1869        (cubed-sphere configuration will change a little)
1870      - grid computations in seaice_init are obsolete now.
1871      - cleaned up code a little so that is easier to read (hopefully).
1872      - added new (better?) discretizations of default advection and diffusion
1873        (turn on with SEAICEuseFluxForm)
1874      - replace 1 in 3d global fields by kSurface in growth.F
1875      
1876    checkpoint58a_post
1877    o seaice:
1878      - bug fix in advect.F
1879    o shelfice:
1880      - separate shelfice load anomaly from pload (breaks with time
1881        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1882        Its default is 0., but it may be computed more cleverly from (unknown)
1883        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1884        done offline. A good approximation of the pressure load anomaly is
1885        necessary to avoid large initial adjustment processes underneath
1886        deep-reaching shelfice.
1887      - small fix in ISOMIP shelfice_thermodynamics
1888      - add more sophisticated thermodynamics of Hellmer (1989), this is
1889        now the default
1890      - give a few constants more intuitive names
1891    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1892      if bulk formulae are used in long integration (especially EmPmR). Turn
1893      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1894      if balancePrintMean, the imbalance that is substracted is printed to
1895      STDOUT.
1896    o fix bug (typo) in obcs_apply_eta.F
1897    o add a new package shelfice which enables us to model the circulation
1898      underneath shelf-ice with draughts of hundreds of meters.
1899     - works
1900     - to do: + include improved thermodynamics
1901              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1902                instead of new field kTopC
1903              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1904                instead of new field R_shelfIce and new code in ini_depth.F
1905                and ini_mask_etc.F?
1906              + adjust vertical mixing schemes?
1907    o seaice pkg:
1908     - add a cpp-flag to include a simple formula for a salinity dependent
1909       freezing point of sea water at the surface
1910     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1911       meridional stresses are now different (and hopefully correct)
1912    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1913       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1914       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1915    o pkg/diagnostics: add options and parameters for regional-statistics
1916       diagnostics ; define regions by reading a region-mask from a file
1917       (might add other options later)
1918    o pkg/bulk_force:
1919     - add option and parameters to use AIM surface-flux formulae.
1920     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1921       others forcing fields (defined in PARM05, parameter file "data") are loaded
1922       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1923     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1924     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1925     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1926       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1927     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1928    
1929    checkpoint58
1930    o add "--embed-source" option to genmake2 which, when the supporting
1931      tools can be compiled (as determined by genmake2) will turn on the
1932      embed_files package which then embeds the entire MITgcm source code
1933      (*.[fFhc] + Makefile) used for the build within the executable
1934      - requested by CNH but off by default
1935      - adds a paltry <9MB to the mitgcmuv executable in most cases
1936      - only writes the output when useEMBEDSRC in eedata is true
1937    o clean up 3-dim. relaxation codes:
1938      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1939      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1940      * Thanks to Tom Haine for testing!
1941    
1942    checkpoint57z_post
1943    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1944      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1945    o fix the pickup behavior for obcs in combination with ptracers
1946    o fix a bug in ptracers_external_fields_load
1947    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1948      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1949    o transfered surface NH pressure to eta field (if exactConserv).
1950    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1951         and update lab_sea output.txt file.
1952    o completing 3-dim. relaxation code: additional term
1953         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1954      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1955      * At compile time, in "EXF_OPTIONS.h" set
1956          #define  ALLOW_CLIMTEMP_RELAXATION
1957          #define  ALLOW_CLIMSALT_RELAXATION
1958      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1959          tauThetaClimRelax3Dim = 15552000.0,
1960          tauSaltClimRelax3Dim  = 15552000.0,
1961      * 3 cases:
1962          1) Use a constant-in-time 3-dim. field
1963          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1964          3) Real-time relax. to time-evolving prescribed field
1965    o Adding Laplacian-type smoothness constraint on
1966      initial and boundary (forcing) controls (ic, bc)
1967      * enable at compile-time via
1968        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1969      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1970      * Absolute scale somewhat unclear so far
1971      * no area weighting was included since no other cost term does so far
1972    
1973    checkpoint57y_post
1974    First step for a NLFS adjoint
1975    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1976    o new init. routines for calc_r_star, calc_surf_dr
1977    o still need to deal with ini_masks_etc
1978    o testreport seemed happy
1979    checkpoint57y_pre
1980    
1981    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1982    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1983    o add new offset feature to offline pkg (plus minor cleanup)
1984    o cfc fixes for final year of integration
1985    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1986      be in GCHEM_OPTIONS).
1987    
1988    checkpoint57x_post
1989    o fix testreport Pb in multiple test experiment.
1990    o cleanup our namelist syntax in verification:
1991      - make it more F95 standards compliant (some work still needed)
1992      - allows the vast majority of our tests to work with gfortran
1993    o Non-Hydrostatic:
1994     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1995     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1996    o Allow to apply AB on T,S rather than on AB(gT,gS):
1997     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1998     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1999       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2000     - need a "clever" read_pickup to restart from the other AB formulation
2001    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2002    o remove some unused variables (reduces number of compiler warnings)
2003    o adjoint
2004      * Disable useVariableViscosity for adjoint for time being
2005        (there are a number of extensive recomputations)
2006      * Initialize certain variables needed for adjoint
2007    
2008    checkpoint57w_post
2009    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2010                 fix the singleCpuIO RS version of MDSWRITEFIELD
2011       and add a WARNING if using globalFiles=T with multi-processors.
2012    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2013      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2014    o tracer advection scheme:
2015      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2016       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2017       was not very convenient).
2018      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2019       (further tests needed for the implicit DST & Flux-Limiter schemes).
2020    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2021      and sRef for convenience, handy, when you want to initialize
2022      ptracers in a large domain with a constant non-zero value. Also,
2023      untangle ptracers_init.F a little.
2024    
2025    checkpoint57v_post
2026    o change dome exp. to use variable viscosity in side-drag terms.
2027    o remove all the files from the cfc_offline test since they are now
2028      incorporated into tutorial_cfc_offline which has been producing
2029      identical results for a few days of testing
2030    o add new parameter: sideDragFactor to enable half-slip-side BC
2031      and change side-drag S/R to use viscosity from mom_calc_visc
2032      (can switch back by setting sideDragFactor=0.); affects results at
2033      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2034       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2035    o vorticity & strain are now computed without masking, to account for
2036      no-slip-side BC in variable viscosity calculation ; mask is applied
2037      anyway later on, before computing advection/coriolis terms.
2038    o modify exp4 to test new obcs support for reading from external files
2039      and for passive tracers
2040    o fix behavior of ptracers_monitor when monitor output is written to a
2041      netcdf-file; still not independent of monitor.F (writes in the same
2042      file).
2043    o change default value of tRef (put a uniform, meaningful value for ocean
2044      & atmos) and initialize sRef (was missing, as Martin mentioned).
2045    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2046      to be proportional to enstrophy dissipation length.  Thus,
2047       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2048      This is now consistent with Smagorinsky and with the manual.
2049    
2050    checkpoint57u_post
2051    o OBCS and PTRACERS: add open boundary support for passive tracers
2052      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2053        OB-values from file; this is not different from the way theta and salinity
2054        are treated
2055      - however, Orlanski-radiation conditions are not supported, and the model
2056        will stop if you use pTracers and Orlanski at the same time.
2057      - beefed up the rountine obcs_external_fields_load: now only those open
2058        boundary values are overwritten with values from files for which there
2059        are really files, otherwise the OB-fields remain untouched. This makes
2060        it possible to use different OBs at different ends of the domain (as
2061        with EXF)
2062    o reduce number of exch calls in shap_filt (s2).
2063    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2064      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2065    
2066    checkpoint57t_post
2067    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2068    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2069      same truncation, independent of the face number: affects affects several
2070      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2071    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2072      note that biharmonic viscosity + no-slip was not tested in any experiment.
2073    o fix bug in non-linear free-surf side-drag ; generate new output for
2074      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2075    o make mnc honor the writeBinaryPrec flag for most kinds of output
2076    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2077    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2078      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2079    o add brackets in multi-terms sum to get same truncation, independent of
2080      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2081      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2082    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2083      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2084      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2085      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2086      Suggested values of viscosity parameters found in mom_calc_visc.
2087      Many new viscosity diagnostics available.
2088    
2089    checkpoint57s_post
2090    o Add clearing-house for viscosity calculations, mom_calc_visc and
2091      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2092      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2093      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2094      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2095      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2096      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2097      ViscAhStrain and viscAhTension are now retired.
2098    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2099    o In response to JMC's bug report, genmake2 now ignores any soft-links
2100      that it finds in the *current* directory when searching for files.
2101      Soft-links found in any other source directories will still work as
2102      they did before.
2103    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2104      a C routine to unlimit the stack size
2105    o mnc-ify pkg/aim snapshot vars
2106    o mnc-ify pkg/land as requested by Daniel
2107    o various changes to mnc including:
2108      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2109      - output can now be grouped so that all files within a group
2110          change the ITER portion of their names in lock-step together
2111      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2112          and works with both EXCH1 and EXCH2 (but needs more testing)
2113      - writing works for all verification test cases w/ g77 on Linux
2114    
2115    checkpoint57r_post
2116    o make MNC variable initialization happen earlier
2117    o add diagnostics for (almost) each term of the momentum Eq.
2118    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2119    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2120    o remove MINIMAL_TAVE_OUTPUT option ;
2121      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2122    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2123      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2124    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2125    o add time-dependent SST, SSS control
2126    o cost terms in ecco/ modularized (new cost_generic.F)
2127    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2128    o new infrastructure for seaice model vs. obs misfits in seaice/
2129      * driver from the_main_loop.F is seaice_cost_driver.F
2130      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2131      * gradient check in Exp. 6a of natl_box_adjoint/
2132    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2133      (see README file)
2134    
2135    checkpoint57q_post
2136    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2137    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2138      - bug was reported by Jean-Michel and Ian Fenty
2139    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2140      update exp. cpl_aim+ocn output.
2141    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2142      Needed for high-res. runs with large global files
2143      to be able to limit tapelev size
2144    o Changed some tests for adjoint:
2145      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2146      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2147      * global_ocean.90x40x15/ back to default 3-level checkpointing
2148    o Modifications to enable scripted COMMON to MODULE conversion
2149      * verification/OpenAD/code/ has necessary scripts and description;
2150      * converts, compiles and runs successfully;
2151    
2152    checkpoint57p_post
2153    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2154    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2155      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2156    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2157    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2158      (was already the case for dissipation with mom_vecinv,
2159       and also the case for grad.PhiHyd when staggered-timeStep)
2160      This will allow to put dissipation out-off the AB time-stepping.
2161     Unfortunately, affects truncation error. Update output of exp. that "fails"
2162      (cg2d matching number) and leave the others for later: front_relax(10),
2163      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2164      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2165    
2166    checkpoint57o_post
2167    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2168      (2) its ready to be documented during the 20050801 DocFest
2169    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2170      for ideal_2D_oce and lab_sea on linux_ia32_g77
2171    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2172      in global1x1_tot/code_seaice_adj to access indices 32, 33
2173      (worth another tag)
2174    
2175    checkpoint57n_post
2176    o adding precip control xx_precip 32
2177    o adding swflux control xx_swflux 33
2178    o Replacing 10 forcing penalty cost routines by 1 generic.
2179    o Implementing partitioning in time-mean and variable adjustment
2180      for atmos. state.
2181    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2182    o in natl_box_adjoint:
2183      * updated exp 1 to 10
2184        (but does not have time-mean vs. variable split results yet)
2185    o updated global1x1/*_seaice_adj/
2186      to incorporate latest changes
2187    o enable useSingleCpuIO for mdsio vector routines
2188      (applies in particular to tapelev I/O)
2189    o removed inefficient K-loop in all active_file*control*.F
2190    
2191    checkpoint57m_post
2192    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2193      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2194    o pkg/exch2: filling of face-corner halo regions is optional
2195      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2196    
2197    checkpoint57l_post
2198     tag before updating tutorials (pre-release-2)
2199    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2200       for output and interpolation of input fields onto model grid)
2201    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2202       Affects results of exp. rotating_tank ; update output.txt.
2203    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2204          and taking the square quantity and/or using a fraction-weight field.
2205    o fix aim_diagnostics_init.F mate numbers.
2206    o add mnc output capability to diagnostics/diagstat and update
2207      our cvsignore files for the ACSII output generated
2208    
2209    checkpoint57k_post
2210    o lab_sea now uses diagnostics package and provides a suite of
2211      new EXF diagnostics output.
2212    
2213    checkpoint57j_post
2214    o exf
2215      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2216        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2217        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2218      * extended diagnostics output
2219        - now includes all EXF variables
2220        - hs, hl moved to common block
2221        - separate S/R for diagnostics, called after ctrl vector is added
2222        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2223        - EXFqnet contains true Qnet (i.e. includes qsw)
2224      * updated verif. lab_sea, global_with_exf
2225      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2226        to ensure that diagnostics sees a true EXFqnet
2227    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2228    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2229      several times with different frequencies.
2230    o mnc-ify the thsice package as requested by Daniel Enderton
2231      - the monitor--MNC output needs work
2232      - many attributes need to be added (most are currently blank)
2233    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2234      - many attributes need to be added (most are currently blank)
2235    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2236    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2237    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2238      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2239         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2240    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2241     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2242    
2243    checkpoint57i_post
2244    o Diagnostics package was changed: diagnostic allocation is now deactivated
2245      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2246    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2247      add 1rst Order upwind vertical Shear.
2248    o add a quick fix for A/B checkpointing in OFFLINE mode
2249    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2250      end-run around the C/Fortran linking horror in eesup/src/timers.F
2251    o added pkg/runclock: allows user to terminate run based on wall clock
2252    o added non-hydrostatic scaling parameter: nh_am2
2253    o pkg/my82: futile attempt to make results compiler-independent by adding
2254      some "_d 0", etc. no effect.
2255    o for mnc output, fill the 'T' coordinate var with myTime and create a
2256      separate 'iter' variable for iteration count
2257    o pkg/diagnostics:
2258      add new capability: output of Global/Regional & per-level statistics ;
2259      tested against monitor output (including land & thSIce) on various exp.
2260    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2261    
2262    checkpoint57h_done
2263      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2264      data.diagnostics, data.gchem, data.ptracers) is done.
2265    
2266    o pkg/diagnostics: prepare for Global/Regional statistics.
2267      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2268    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2269      and rename it: DIFFERENT_MULTIPLE
2270    
2271    checkpoint57h_post
2272    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2273    o pkg/diagnostics: change output frequency, now in seconds (instead
2274      of Nb of iterations). This requires to change data.diagnostics.
2275    checkpoint57h_pre
2276    
2277    o in mnc, let the user create the output dir if both mnc_outdir_date
2278      and mnc_outdir_num are false
2279    o add fflags() to pkg/diagnostics which allows one to specify, on a
2280      per-file basis, the file precision [default behavior is unchanged]
2281    o added diagnostics to pkg/kpp, including computation of mixed layer
2282      depth based on a temperature/density criterion
2283    o updated verification/natl_box to test the new pkg/kpp diagnostics
2284    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2285    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2286    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2287      not mnc -- this mistake was found by JMC and is now corrected
2288    
2289    checkpoint57g_post
2290    o add Adams-Bashforth 3rd Order time stepping:
2291      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2292      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2293    checkpoint57g_pre
2294    
2295    o make lambda[Theta,Salt]ClimRelax spatially varying
2296      (default remains spatially uniform constant based on tau)
2297    o added new control variables
2298      * init. uVel, vVel, etanN
2299      * lambda[Theta,Salt]ClimRelax
2300    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2301      (suggested by G. Forget)
2302    
2303    checkpoint57f_post
2304    o add parameter "baseTime" = model base time = time at iteration zero
2305      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2306      account for baseTime shift
2307    o move Coriolis arrays from PARAMS.h to GRID.h
2308    checkpoint57f_pre
2309    
2310    o mnc-ifying the seaice package
2311    o introduced an alternative length scale calculation for use in the limiting
2312      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2313    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2314    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2315      as well as grad(vort3).  Made it compatible with both approximate form
2316      for the cubed sphere and full form of these gradients.  Added flag
2317      useFullLeith to select between approximate and full form.  
2318    o add "d0" in getcon.F to reduce differences between compilers/platforms
2319      update output.txt of exp. fizhi-gridalt-hs
2320    o change port_rand funtion to allow to set the seed.
2321    o fix obscure MNC bug involving conversion between reals and integers
2322      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2323        new version is now more standards-compliant
2324    o adjoint-related modifications
2325      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2326      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2327      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2328    
2329    checkpoint57e_post
2330    o Adding eddy stress controls a la Ferreira et al.
2331    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2332    
2333    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2334      update output.txt of exp. fizhi-gridalt-hs
2335    o add more "Z" dimensions and associated coordinate vars to MNC
2336    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2337    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2338      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2339      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2340      months and years.  Requires pkg/cal.
2341    o diagnostics: add pickup functionality
2342      - off by default for backwards compatibility
2343      - current version only uses MDSIO -- MNC will be added
2344    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2345    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2346    
2347    checkpoint57d_post
2348    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2349    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2350      output from the diagnostics package
2351    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2352    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2353      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2354    o add coordinate variables to the MNC output from the diagnostics package
2355    o change MNC-flags default value: true when useMNC=TRUE
2356    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2357      the ability (off by default) to read the grid information using MNC
2358    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2359    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2360    o do snap-shot diagnostics at the middle of the time-interval (instead of
2361      at the end).
2362    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2363      new test for AIM with thSIce + slab-ocean
2364    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2365    o move state variable diagnostics to the beginning of the time step ;
2366      (note: still needs some work specially for snap-shot diagnostics)
2367      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2368    
2369    checkpoint57c_post
2370    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2371    o generate new output.txt files on faulks with g77 & the new -ieee option
2372    checkpoint57c_pre
2373    
2374    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2375      update output.txt of exp. global_ocean.90x40x15
2376    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2377      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2378    o add saltFlux(+File) forcing capability with periodicExternalForcing
2379    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2380    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2381    o improvements for the MNC output from DIAGNOSTICS:
2382      - correct handling of the unlimitied dimension
2383      - all dims now have associated coordinate variables
2384      - variables located at U, V, and Corner ("Z") points are now written
2385        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2386        *all* data points are output
2387    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2388    o added pkg/seaice/seaice_monitor.F
2389    o mdsio_readfield.F can now read files visible only to master MPI process.
2390    o pkg/seaice: some test code for ice-modified ocean stress
2391    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2392      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2393      spurious negative numbers for precipitation and humidity.  Will cause
2394      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2395    o pkg/ctrl/
2396      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2397        May be enabled via doPackDiag
2398      *  introduce z-scaling of
2399         + gradient (doZscalePack) and
2400         + control (doZscaleUnpack)
2401    o pkg/mdsio/
2402      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2403      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2404    
2405    checkpoint57b_post
2406    o simplify options in diagnostics_fill arguments (remove weird combinations)
2407    o fix MNC coordinate variables so that they now contain per-face index
2408      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2409      general, EXCH2 grids are only aligned to a "local" coordinate system
2410    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2411    o Implement instantaneous output within pkg diagnostics:
2412      setting a negative frequency in data.diagnostics produces
2413     "snap-shot" output (as opposed to time-average if freq > 0)
2414    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2415      NOTE: change ptracer diagnostics name: use 2 characters to work with
2416            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2417    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2418      becomes the coordinate variable for the 'T' dimension
2419    o add CF-style coordinate variables to MNC
2420      - just a first cut:  numbers are meaningless on the cubesphere and
2421        missing along the T axis but otherwise it works!
2422    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2423    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2424    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2425      this is based directly on what the model compute, so that the content of
2426      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2427    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2428    o clean up build options files for SunOS, in particular
2429      - remove -traditional from xmakedepend
2430      - change -xarch=v9 to -xarch=native for f77
2431      - restore use of make (not gmake)
2432      - add CC=gcc if using g77
2433    o changes per discussion of AM, JMC, & EH3 today:
2434      - move redundant "grid" variables out of "state" -- in preparation of
2435        creating proper CF-style coordinate variables and in recognition
2436        that any/all grid variables can be easily copied (eg. w/NCO) from
2437        the grid files into any of the other NetCDF files
2438      - *always* output grid variables with MDSIO (this will eventually be
2439        changed)
2440      - output MNC grid file if useMNC is true
2441    o every instance of _END_MASTER() has been found and replaced with
2442      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2443      preprocessors
2444    o re-arrange diagnostics pkg initialisation:
2445     - allow each package to extend the available diagnostics list
2446     - add some checking and fix small problems (multi-threaded, ...)
2447     - new S/R diagnostics_fill (replace fill_diagnostics):
2448       look through the short list of active diag. (instead of the long list)
2449       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2450    
2451    checkpoint57a_post
2452    o this set of changes restores TAMC compatibility
2453      tested for global_ocean.90x40x15 adjoint on trough
2454      (what a pain)
2455    
2456    checkpoint57a_pre
2457    o some modifs in tools/build_options for sunos
2458    o call ctrl_pack for ctrl at end for optimcycle=0
2459    
2460    checkpoint57
2461    o add horizontal bi-harmonic viscosity for vertical velocity
2462      - new parameter viscA4W (defaults to viscA4)
2463      - affects only non-hydrostatic code
2464      - to be done: no-slip lateral boundary conditions
2465    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2466    o implement Implicit Vertical advection for pTracers
2467    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2468      (implemented also for implicit vertical diffusion & advection)
2469    o OBCS: extend application of tracer open boundary conditions
2470      to a strip beyond the boundary of width Olx/Oly
2471    o add call monitor to TAF set of required calls (flow directives)
2472      and include in natl_box_adjoint
2473    o untangle a few ifdefs related to cost, ctrl, autodiff
2474      untangel a few ALLOW_ECCO_OPTIMIZATION
2475    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2476      (theta2, salt2 in ecco_cost_weights)
2477    
2478    checkpoint56c_post
2479    o OBCS as control variables
2480      - update ctrl_ad_diff.list, obcs_ad_diff.list
2481      - remove balance of obcs controls from default
2482      - fix index bug nobcs in ctrl_init
2483      - fix dummy fields filen in ctrl_pack
2484      - add dummy weights for obcs
2485    o lsopt: comment out fort.94 output
2486    o optim:
2487      - remove unnecessary header files
2488      - adjusted namelists
2489      - add xerbla.F to Makefile
2490    o exf:
2491      - multiple modifications of exf_check_range
2492      - unit change in exf_init_runoff from [m/year] to [m/s]
2493    o mdsio:
2494      - i/o-vector change debugLevel from debLevA to debLevB
2495    
2496    checkpoint56b_post
2497    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2498      is called from DO_THE_MODEL_IO
2499      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2500      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2501      - clean up PTRACERS_WRITE_TIMEAVE a little
2502    o add another verification experiment that tests both the cfc-pkg and
2503      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2504      reactive tendencies treated inline with regular timestepping
2505    o testreport previously did a lousy job of comparing small numbers, so
2506      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2507      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2508      testreport.
2509    o ptracers_monitor: bug fix for MPI
2510    
2511    checkpoint56a_post
2512    o GCHEM: finish reorganizating the package
2513      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2514        (introduces another 3D-array for each passive tracer, but only if
2515        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2516        gchemTendency is not needed because the timestep is done separately)
2517      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2518      - GCHEM is now---more or less cleanly---separate from PTRACERS
2519      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2520        so clear to me how that should be done in a general way.
2521    o CFC: improve formatting of output in CFC_ATMOS
2522    o PTRACERS:
2523      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2524        that ALL experiments with ptracers enable can be checked. This makes
2525        GCHEM_MONITOR obsolete.
2526      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2527        monitorFreq
2528      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2529    o add PTRACERS (PTR0[1-5]) to testreport output
2530    o exf_check_range:
2531      * default changed to .TRUE.
2532      * will check values for niter0 if debLevA, every timestep if debLevB
2533      * STOP in exf_check_range if 'out of range'
2534      * range chosen generous to allow for potential extema
2535      TBD: a version with stricter range
2536           permitted range would be runtime parameters
2537    o GMredi:
2538      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2539      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2540      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2541    o GCHEM:
2542      - move call to GCHEM_FORCING_SEP, so that it is now called before
2543        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2544      - introduced a useGCHEM runtime flag and applied it everywhere.
2545      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2546        this flag is now only visible within GCHEM-pkg routines.
2547      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2548        be replaced by a 3D array that is computed before thermodynamics; for
2549        this, the tracer ID iTracer had to be included into the parameter list
2550        of ptracers_forcing
2551      - set up forward_step to call gchem_forcing, that will replace
2552        gchem_forcing_int in ptracers_forcing
2553      - cleaning up
2554    o small cleaning of exch2: remove files that are also in eesupp/src
2555    
2556    checkpoint56
2557    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2558    o mnc: cleanup "full" files--fixes out-of-memory problem
2559    o ECCO-GODAE
2560      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2561      * fully merged and updated from SIO code
2562        windstress sign change affects
2563        - exf_inscal_[u/v]stress
2564        - sign of xx_tau[u/v] adjustments
2565        - signs in cost_scat
2566      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2567      * natl_box_adjoint updated and compressed
2568      * 2-level checkpoint switch added
2569        (tested in EXP. 1 of natl_box_adjoint)
2570      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2571    o SVD
2572      * first complete, non-hacked version for SVD calculations
2573      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2574        performed via direct access files admtlm_vector.it????
2575        (via ctrl_[un]pack)
2576      * optimcycle is used for ARPACK iteration counter
2577        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2578      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2579        and add linear transforms where necessary
2580      * controls are initial/final SST, SSS (can be extended; need to check
2581        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2582    o mdsio: filename info to both stderr, stdout
2583    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2584      from sign change
2585    
2586    checkpoint55j_post
2587    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2588      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2589    o add consistent build directories and .cvsignore files to verification
2590    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2591    o make all subroutines 30 or less characters in length for certain older
2592      compilers to work (a thorough search only turns up two routines in
2593      pkg/ptracers)
2594    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2595      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2596    
2597    checkpoint55i_post
2598    o change arrays for total vertical diffusivity (2.D if explicit,
2599      3.D if implicit) ; each ptracer uses its own background value.
2600    o added mnc/NetCDF output capability to ocn_compon_interf
2601      - added bits to verification/cpl_aim+ocn so that it can run on
2602        ITRDA and other clusters without the mpirun "-wd" option
2603    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2604      configuration
2605    o give MNC the ability to create additional files rather than
2606      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2607      - the default is just less than 2GB which is a practical limit
2608        on many systems
2609    o Compute the non-local term using either KPP vertical diffusivity (=default)
2610       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2611    
2612    checkpoint55h_post
2613    o add verification test "vermix"
2614    o remove all the *_ioinc flags and replace with the single global
2615      outputTypesInclusive flag
2616    o allow to set a vertical profile of vertical diffusivity for T & S
2617    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2618    o useMNC moved from data.mnc to data.pkg
2619    
2620    checkpoint55g_post
2621    o Renaming carbon AD experiments to comply with testreport conventions
2622    o Updating adjoint of Held-Suarez hs94.1x64x5
2623    o Fixing directives for non-ECCO forward_step, after ECCO directives
2624      have been fixed to avoid recomp. of do_oceanic_phys
2625      Works well for global_ocean.90x40x15,
2626      but recomp. issue remains for carbon
2627    o Updating adjoint output for natl_box_adjoint after
2628      pkg/ecco has been modified (see taga c55d_post)
2629    
2630    checkpoint55f_post
2631    o rename to timeave_init_fixed
2632    
2633    checkpoint55e_post
2634    o some delicate re-shuffle of store directives to avoid one
2635      extra call of do_oceanic_physics
2636      affects ecco_the_main_loop.F, do_oceanic_physics.F
2637      checkpoint_lev1_directives.h
2638    o NB: this may break global_ocean adjoint temporarily,
2639      but it is clear how to fix it. Will do later, need this now.
2640    
2641    checkpoint55d_post
2642    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2643    o ecco_cost_weights is modified to 1x1 runs
2644    o modifs to allow observations to be read in as
2645      single file or yearly files
2646    o enable to read exf forcing fields as either
2647      single file or yearly files (flag useExfYearlyFields)
2648    checkpoint55d_pre
2649    
2650    o switch between 2-level and 3-level checkpointing
2651    o add ability of MNC to write local and "partial" (eg. 2D slices where
2652      the full 3D field is never actually stored) arrays to NetCDF files
2653      with the correct (that is, the complete multi-dimensional) set of
2654      array indicies
2655      - used in mom_vecinv() to write the diagFreq output
2656      - tested (demonstrated) in verification/aim.5l_cs
2657    o further mnc-ification
2658      - add verification/lab_sea to the list with mnc setups
2659      - fix undefined mnc v-names in cd_code
2660      - add kpp to mnc output (both snapshot and timeave)
2661    o non-hydrostatic code
2662      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2663        in calc_gw.F
2664      - defaults to viscAh
2665      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2666        friction or Leith) in non-hydrostatic mode, as long as there is
2667        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2668    o pkg/cost
2669      extend simple cost functions to treat time mean quantities
2670      (T,U,V) via cost_accumulate_state from cost_tile
2671    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2672        be 2 times larger than the minimum size the advection scheme requires.
2673        now get a perfect conservation of salt in advect_cs test-exp (updated)
2674    o GGL90 (Gaspar's TKE mixed layer)
2675      - add horizontal diffusion of TKE, requires exchanges in
2676        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2677        default. In OPA there is no horizontal diffusion of TKE but the
2678        mixing coefficients are computed from a horizontal average of TKE of
2679        6 points or so. I think that diffusion has a little more physical
2680        justification.
2681      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2682        was in vain)
2683      - mask tke-variable in ggl90_init
2684    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2685    o fix biharmonic diffusion on CS-grid.
2686    o more obcs stuff
2687      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2688        for reading boundary values. This routine is called from
2689        obcs_prescribe_read
2690      - updated obcs_check
2691      - changed sponge layer relaxation parameter units for days to seconds
2692      - turned off sponge layer by default
2693      - changed argument list of OBCS_CALC to myTime+deltaTclock
2694      - fixed about 35 bugs in obcs_external_fields_load
2695    
2696    checkpoint55c_post
2697    o obcs stuff
2698      - new runtime flags useOBCSprescribe, useOBCSbalance
2699      - re-arranged obcs_calc
2700      - moved exf_getobcs to obcs_prescibe_read
2701        obcs_prescibe_read is called after ORLANSKI stuff
2702        and independent of it (executable can contain all).
2703      - updated obcs_check
2704      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2705        These may be necessary only if tangential velocities are
2706        prescribed at OB, not sure, needs testing.
2707    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2708      which simplifies the calls and passes the ifc check-bounds test
2709    
2710    checkpoint55b_post
2711    o add a 2D scalar, Z location, exchange_2 routine.
2712    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2713      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2714      affects advect_cs results (for the wrong reason): update output.txt
2715    o use a more standard discretization for biharmonic viscosity ;
2716     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2717      affects results of dome set-up: update output.txt
2718    o fix gad_advection.F (CubedSphere part), back to version 1.23
2719    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2720    
2721    checkpoint55a_post
2722    o merged code to
2723      * prescribe/read time-dependent open boundaries
2724        (works in conjunction with exf, cal)
2725      * sponge layer code for open boundaries
2726      * each boundary N/S/E/W now has its own CPP option
2727        (healthy for the adjoint)
2728    
2729    checkpoint55
2730    o up-to-date adjoint of previous breaks
2731      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2732      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2733      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2734      - carbon: * remove tr1-related adjoint verification
2735                * add ptracer as control variable
2736    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2737      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2738    
2739    checkpoint54f_post
2740    o in verification/carbin/ remove experiment related to
2741      ALLOW_PASSIVE_TRACER (array tr1 etc)
2742      code_ad/ input_ad/ results_ad
2743    
2744    o add two new packages
2745      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2746        + subject to optimization (memory)
2747      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2748        + subject to reordering (many GOTOs in the original code)
2749        + so far opps is called for every (i,j) point, and then operates in
2750          the vertical; one may want to reorder the scheme in order operate in
2751          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2752          fields)
2753    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2754      - all verification tests compile and run with linux_ia32_g77
2755      - defaults are compatible with current input files--nothing
2756        should change if you were not previously using MNC
2757      - MNC output has been added in numerous places (eg. timeave)
2758        but there are still a few writes not yet do-able with MNC
2759        (this is in progress)
2760      - flags now allow for either/or/both use of MDSIO and MNC and
2761        documentation will soon follow
2762      - numerous small formatting cleanups for ProTeX
2763    o add version info (via BUILD_INFO.h) to MNC and stdout
2764    
2765  checkpoint54e_post  checkpoint54e_post
2766  o add two new packages  o add two new packages
2767    - pp81 (Packanowski and Philander, 1981), Richardson number and    - pp81 (Packanowski and Philander, 1981), Richardson number and
# Line 10  o add two new packages Line 2769  o add two new packages
2769    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2770    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2771      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2772      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2773  o add offline package  o add offline package
2774  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2775    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

Legend:
Removed from v.1.341  
changed lines
  Added in v.1.1165

  ViewVC Help
Powered by ViewVC 1.1.22