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revision 1.322 by jmc, Tue Jul 6 02:44:27 2004 UTC revision 1.1145 by mlosch, Thu Jul 30 07:38:54 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/seaice:
8     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
9       2d-fields, for slightly better performance
10    checkpoint61t
11    o pkg/seaice:
12     - remove unused variables in seaice_evp
13     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
14    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
15       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
16       each processor opens a different file (a fix from Matt).
17    o cg2d:
18       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
19       this reduces number of EXCH calls by 2 when using exch2.
20       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
21       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
22    o pkg/thsice:
23       add code for Near Infra-Red albedo (from Jeff)
24       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
25    o ini_model_io:
26       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
27       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
28       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
29    
30    checkpoint61s
31    o pkg/exch2 (exch2_rxN_cube*):
32       remove last BARRIER (no need to synchronise after getting data from shared
33       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
34    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
35      and generate new output (for the 2 tests) using default rotationPeriod.
36    o pkg/exch2:
37      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
38        (was already the case with AUTODIFF_EXCH2 defined)
39      - add bj in exch2 arrays and S/R.
40      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
41        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
42    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
43      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
44        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
45      - verification experiment natl_box.longstep
46    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
47      allow different versions of ifort (8 or 9) and different versions
48       of mpi (mpich or mpich2) to be used with the same optfile.
49      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
50       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
51    o pkg/seaice:
52      fix previous modif (3-level field removed) for old-pickup reading
53    
54    checkpoint61r
55    o pkg/seaice:
56     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
57      1. introduce fields for time step (N-1)
58      2. do not use levels 2 and 3 anymore (but keep them)
59      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
60         includes changes to pkg/thsice/thsice_get_velocity.F,
61         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
62         pkg/obcs/obcs_apply_uvice.F.
63     - completely remove code for leap-frog time stepping for second order
64       advection
65     - adjusted adjoint accordingly;
66       gradient checks have improved by an order of magnitude!
67    
68    checkpoint61q
69    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
70     - the boundary conditions along open boundaries are unclear, because the
71       associated masks are set to zero and are thus treated as closed when
72       applying the slip-boundary conditions.
73     - move initialisation of grid variables from seaice_init_varia to _fixed
74    o adding doc/diags_changes.txt
75    o model/src:
76      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
77       to avoid "_diags" naming if no relation to pkg/diagnostics.
78      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
79       file and only call PLOT_FIELD_XYZ if debugMode=T.
80      remove few PLOT_FIELD_XY calls outside initialisation.
81      remove few unnecessary BARRIER.
82    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
83      of salt_plume package in Southern Ocean
84    o pkg/thsice:
85     - fix hOceMxL in overlap (needed for sea-ice advection);
86       update output of experiment global_ocean.cs32x15.icedyn.
87    o pkg/seaice:
88     - make the (placeholder-)tracer IceAge a little more meaningful
89      by avoiding ridging of age due to convergent ice flow
90     - add diagnostics for surface temperature, atmospheric and oceanic
91       heat flux, and atmospheric and oceanic ice growth
92    
93    checkpoint61p
94    o eesupp (global_max & global_sum):
95     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
96     - remove starting & endding barrier (no longer needed)
97    o pkg/mdsio, writelocal:
98       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
99       (remove the STOP): uses shared buffer IO to store data from all threads
100       and then let master-thread write nThreads tiles.
101    o pkg/mdsio (read/write field):
102     - tiled IO done in 1 piece (all levels at a time);
103     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
104     - multi-threaded: allow to read/write local (non-shared) array
105       (was already working with singleCpuIO ; now works also without);
106       => no longer needs barrier call after reading a file (added inside
107       mds_read/write field).
108     - move barrier calls outside gather/scatter_2d to mds_read/write_field
109    o pkg/obcs/exf
110      - exf_getffieldrec.F: add a few ". _d 0" and
111                            add code to catch the case fldperiod = 0.  
112      - obcs_precribe_read.F: change if statements so that they match
113                              the variable type (_RL)
114      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
115        exf_iprec) as part of namelist EXF_NML_01
116    o pkg/mdsio:
117      - read/write tiled (local) files: read/write 1-level tile chunk at a time
118        (instead of segment of length sNx); expected to speed up tiled IO.
119    o pkg/exch2:
120      - take buffer copy from/to array out of S/R exch2_send/recv into new
121        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
122        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
123      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
124      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
125        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
126        including Topology header file (and common blocks).
127      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
128        remove 2nd exch call in exch2_s3d_rx (no longer needed).
129      - document S/R arg. list (+ update some comments)
130    o pkg/seaice:
131      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
132        temperature and humidity over sea ice based on climatological values.
133      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
134        of LSR (this change is expected to change the results slightly because now
135        it uses slightly difference moduli from the second last LSR solution, but
136        that is more consistent with the stress computations; this part of the code
137        is not tested in the verification experiments)
138      - fix diagnostics for flux of ice in case of B-grid
139      - turn strain rates eij and press into global fields within global
140        common block in SEAICE.h for more straighforward diagnostics
141      - fix diagnostics for principal stress components, press, zeta, eta
142        to give something meaning full
143    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
144      new output (all 4 tests) using default rotationPeriod.
145    o pkg KPP:
146      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
147      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
148        and normal grid from 1 to Nr)
149    o Fix computations of L4rdt in mom_calc_visc.F
150    o eesupp:
151      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
152      should be called before a "stop" if we know that all process are going
153      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
154    
155    checkpoint61o
156    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
157    o model/src/ini_curvilinear_grid.F:
158       compute angleSin/CosC when they are not read from a file
159    o pkg/seaice:
160       add pseudo time stepping for LSOR
161    o pkg/exch2:
162       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
163    o pkg/seaice:
164       Adding separate sea ice albedo, drag coefficients, and HO in Southern
165       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
166    o SingleCpuIO:
167       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
168    o pkg/seaice:
169       put exchanged variable in (local) common block for MPI+Multi-Threads
170       to work (necessary with exch1, and for now with exch2 too).
171    o verification: to get more experiments tested with mpi, mth and mpi+mth,
172      change tiling of:
173       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
174       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
175      update output of exp:
176       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
177       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
178      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
179                       (note: output.txt generated on faulks using only 1 tile)
180    o eesupp & mdsio (SingleCpuIO):
181     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
182       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
183       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
184     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
185     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
186       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
187    o pkg/exch2:
188     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
189       read parameter file "data.exch2" if it exists; otherwise try default regular
190       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
191     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
192       with new code (not to be used, just as a backup solution).
193     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
194       in utils/exch2/input.
195    
196    checkpoint61n
197    o eesupp & mdsio (SingleCpuIO):
198      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
199        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
200        receive real*4 array (instead of real*8) to read/write 32.bit files.
201        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
202         and remove new mapping S/R)
203    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
204      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
205        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
206        when using exch2. Add S/R to map global io-buffer to global model array.
207      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
208    
209    checkpoint61m
210    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
211      and add 3 other S/R for other types (R4,R8,RS).
212      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
213    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
214     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
215     - reduce number of macro definitions (keep only those which are used);
216       can always call directly the corrresponding S/R if needed.
217     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
218       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
219     Fixed wrong type of arg in:
220       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
221       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
222     To fix: global_sum of var in common block is wrong (multi-threaded) in:
223       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
224     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
225    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
226      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
227    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
228    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
229      edges are closed (zero depth); might happen with "blank tiles";
230      for now, disabled if using OBCS.
231    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
232      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
233    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
234      to reduce length of 1.D array print in STDOUT.
235    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
236      + use 48 tiles (16x8): this will allow to test "blank tiles".
237    o start to test MPI + multi-threaded (change testreport to skip tests
238      where number of tiles do not match).
239    o genmake2: add option "-omp" to turn on Open-MP ;
240      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
241    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
242      and keep the original tile numbering. Note: compatible with old
243      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
244    
245    checkpoint61l
246    o Overlaps had been forgotten in calculating ijk keys : fixed
247    o fix cyrus makedepend for gcc 4.4
248    o experiment fizhi-cs-aqualev20:
249      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
250      and generate new output. Note: new output is much closer to the old
251      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
252      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
253    o pkg/fizhi:
254     - change to avoid indices going deliberately over array-bounds
255     - remove unnecessary MPI stuff
256     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
257     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
258       does not go over array-bounds and therefore returns reliable output.
259     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
260       this S/R has 4 output arguments, which are used inside "get_alarm";
261       when it is called with the same variable "ndum" in place of several
262       output arguments, this produces weird side effect inside "get_alarm"
263      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
264       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
265       address) and produces error.
266    o tools/gemake2: (March 27-29 2009)
267      with option "-mpi": link *_mpi files from "MODS" dir (this is what
268      testreport does).
269    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
270    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
271       update lab_sea.lsr & lab_sea.salt_plume results
272    o pkg/seaice:
273      Major overhaul of the LSOR solver: change discretization from original
274      finite differences to finite volume. The old routine is still in the
275      file seaice_lsr.F and can be turned on with the CPP-flag
276      SEAICE_OLD_AND_BAD_DISCRETIZATION
277      Along with this change, the discretization of the strain rates is changed.
278      The same flag turns on the old discretization in seaice_calc_strainrates.F
279      All verification experiments with seaice are affected (except for
280      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
281      results by setting the above flag.
282      Further changes involve changes in defaults:
283      - ALLOW_FLOODING is defined and turned on by default
284      - SEAICEadvSnow = .true. is now the default
285      - SEAICEadvSalt = .true. is now the default
286      - SEAICEadvAge  = .true. is now the default
287      - SEAICE_clipVelocities  = .false. is now the default
288                                         (as per J. Zhang's recommendation)
289      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
290        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
291      - seaice_growth: replace computation of UG by a simple copy from wspeed
292    
293    checkpoint61k
294    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
295      seaice_lsr: fixed a few metric terms,
296                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
297                  add more debugging diagnostics
298      seaice_evp: removed superfluous many metric terms of FV discretization
299                  of stress divergence
300                  affects lab_sea, lab_sea.hb87
301      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
302                  of stress divergence for non-evp solver
303                  (this part is not tested anywhere)
304      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
305                  they were effectively only half slip
306                  affects lab_sea.hb87
307      updated all relevant verification experiments (except lab_sea//output_adm.txt
308        which was left over, but fails at level 7 & 6)
309    
310    checkpoint61j
311    o pkg/seaice: turn a few hard wired parameters into run time parameters
312    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
313      time in seconds as promised by the usints in seaice_monitor and exf_monitor
314    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
315      that are not cubed-sphere grids
316    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
317    o pkg/ctrl:
318      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
319    o non-hydrostatic (calc_gw.F):
320      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
321      update output of exp. global_ocean.cs32x15.viscA4
322    o remove backward compatibility for thetaMin,phiMin
323      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
324    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
325      interpolated wind field not only for curvilineargrid=.true., but also
326      for a rotated grid (rotateGrid=.true.)
327    o pkg/exf: add capability to bypass interpolation for runoff
328      by setting yet another CPP-flag
329    o eesupp/src, B-grid exchange:
330      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
331    o autodiff
332      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
333      allows to switch to single-prec common blocks;
334      corresponding switch occurs in tamc.h, integer isbyte
335      TAF store directivs "byte" and "kind" seem equivalent;
336      Most tamc.h have been updated correspondingly.
337    
338    checkpoint61i
339    o autodiff:
340      fix autodiff_sore/_restore indices for obcs
341      (spotted by I. Hoteit, M. Mazloff)
342    o pkg/autodiff, pkg/ctrl:
343      Add flag to reduce all tapelev I/O to single-prec.
344      In data.ctrl set
345        doSinglePrecTapelev = .TRUE.
346    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
347      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
348    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
349      real fresh water flux (not yet)
350    o pkg/mdsio & rw:
351     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
352     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
353    o pkg/flt:
354     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
355       init_fixed & ini_varia.
356     - clean-up & simplify linear interpolation S/R:
357       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
358     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
359     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
360     - add vert. coordinate & horiz. indices to output files.
361     - change vertical position in initial condition, from index to depth [m].
362     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
363       (easier to get to a curvilinear grid) ; delX,delY no longer used.
364    o pkg/ggl90: a few modifications:
365     - fix bottom boundary condition, and interpolation of KappaE
366       near top and bottom
367     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
368     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
369     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
370    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
371      (maintain temporary backward compatibility, until next checkpoint)
372    
373    checkpoint61h
374    o pkg/diagnostics with "periodic averaging diagnostics":
375      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
376    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
377    o pkg/obcs: fix loop ranges for balancing code
378    o pkg/flt:
379     - improve criteria for finding which tile owns a float.
380     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
381    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
382      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
383      with ocean biogeo)
384    o pkg/flt:
385     - do some cleaning and fix the restart ;
386     - add output.txt in flt_example/results to get this pkg tested.
387    o genmake2: add an EXTENDED_SRC option and flag.
388       for now, cannot be turned on on command line (only through genmake_local)
389    o pkg/mdsio: read/write vector:
390     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
391     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
392       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
393     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
394      (drop to 4 digits matching for grad). But this test does not look very
395      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
396    
397    checkpoint61g
398    o pkg/flt:
399      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
400       + make OPTIONS file more standard.
401      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
402      - fix _BYTESWAPIO CPP-Flag
403      - standard reading of file-parameter "data.flt"
404      - fix argument list of S/R FLT_RESTART
405      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
406    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
407    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
408      a still unfixed compiler/optimization bug
409    
410    checkpoint61f
411    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
412      update results of global_ocean.cs32x15.icedyn test.
413    o move getcon.F from model/src to pkg/fizhi.
414    o pkg/exf: add parameter for extrapolation of temp up to the surface
415       and option to prevent negative evap (in bulk_largeyeager04 only).
416    o Prather Advection scheme: fix tracer conservation for divergent flow
417      (e.g., when using NonLin Free-Surface).
418    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
419    o gmredi (Visbeck-variable-K):
420     - add more parameters to Visbeck-variable-K.
421     - use a 5 points average for dSigmaR in Visbeck-K calculation
422       (more "homogenous": same stencil and same weights as in dSigmaH)
423     - update output of ideal_2D_oce experiment.
424    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
425      (#undef REAL4_IS_SLOW)
426     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
427       coordinate variable
428     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
429       (surface forcing fields), removes some of the functionality
430     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
431     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
432       probably not all: copy _RS surface flux fields to RL field before
433       calling DIAGNOSTICS_FILL
434     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
435       real*4 (CALL EXCH_*_RS) versions.
436     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
437       (generate new output).
438    
439    checkpoint61e
440    o gmredi (Visbeck-variable-K):
441      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
442      - change computation of Visbeck-K where Slope > Smax :        
443        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
444        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
445    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
446      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
447    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
448    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
449      does not become too large (to avoid precision problems in implicit-diffusion
450      solver); update ideal_2D_oce output.
451    o pkg ggl90:
452      - in ggl90_cal.F: compute only one set of visc/diff, used to
453        step forward TKE/T/S/momentum
454      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
455        have Prandlt =1)
456    o gmredi (fm07):
457      - add lower limit on Transition layer thickness + lower limit on 1/lambda
458      - allow to set few more params from data.gmredi
459    o pkg ggl90:
460          - add missing sqrt(2) factor in computation of mixing length
461            scale in ggl90_calc.F
462            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
463    
464    checkpoint61d
465    o adjoint modifs
466      - adapt to new field rhoInSitu
467      - allow to revert from StoreDynVars2D, StoreDynVars3D
468        to individual fields
469        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
470    o store 3-D (in-situ) density in commom block (DYNVARS.h)
471     - save 1 rho computation.
472     - no longer modify T & S inland when using down_slope pkg.
473    o gad_som : allow to switch to SOM advection for T & S without corresponding
474      pickup files (using new S/R: MDS_CHECK4FILE).
475    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
476      (for useSingleCpuIO to work in multi-threaded)
477    o pkg/shelfice:
478     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
479       with SHELFICEtopoFile in data.shelfice
480     - move code for reading ice shelf topography and modifying hFacC into separate
481       subroutines of the shelfice package
482     - separate initialisation of "fixed" and "variable" variables
483     - kTopC is not (yet) replaced by kSurfC, although this is possible
484    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
485    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
486      and rename:
487      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
488      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
489    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
490    
491    checkpoint61c
492    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
493      to add mass source/sink of fluid in the interior (3-D generalisation
494      of oceanic real-fresh water flux).
495    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
496    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
497    o new pkg: down_slope
498      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
499      - presently, modify T & S inland (dwnslp_calc_rho.F).
500        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
501      - implementation for ocean in P-coords not tested.
502      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
503    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
504      (to facilitate conversion of oceanic pkg to p-coordinate).
505    o change FIND_RHO to FIND_RHO_2D :
506      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
507    o new pkg: cheapaml
508    
509    checkpoint61b
510    o exch2:
511      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
512      - no longer depend on the order sequence (N,S,E,W).
513      - 3rd exchange no longer needed (tested with 24 tiles).
514      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
515      - exch_UV_A-grid readily available (but not yet tested).
516      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
517      (both are no longer needed) in exch_uv: no effect in forward run; but
518       get truncation error differences with adjoint exch.
519    o exch2:
520     - change index-bounds storage (moved from target to local tile,
521       more intuitive this way) ; rename/remove some variables.
522     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
523    
524    checkpoint61a
525    o exch2/matlab-topology-generator:
526      fix bug in index bounds for N-S internal exchange (hard to tell if this
527      had any effect on the solution).
528    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
529      is exceeded
530    o testreport: modify syntax of awk, so that it works also with
531      awk, and not only with nawk and gawk
532    
533    checkpoint61
534    o autodiff
535      Change default for TAF usage by removing argument '-nonew_arg'
536      This changes TAF subroutine argument list (ordering of active var.)
537      Omission of this flag leads to incompatibility w.r.t. TAMC
538      To restore TAMC-compatibility, need following modifs:
539      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
540      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
541      Tested TAF version is 1.9.22
542      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
543    
544    checkpoint60
545    --->>> This is the last checkpoint for which generating the adjoint
546    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
547    --->>> by default.
548    --->>> Future checkpoints will ommit this flag by default.
549    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
550    o pkg/grdchk: Add gradient check to etan0 perturbations.
551    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
552    o pkg/autodiff: more flexibility in zeroadj.
553      model/src: modifying do_oceanic_phys.F accordingly.
554    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
555    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
556      special setup of gmredi for which the adjoint is stable
557      enough for parameter optimization.
558    o bridging the gap between eddy stress and GM.
559      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
560          along with a change in CPP option (now ALLOW_EDDYPSI).
561      -> when using GM w/ GM_AdvForm:
562          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
563          is applied either in the tracer Eq. or in momentum Eq.
564          depending on data.gmredi (intro. GM_InMomAsStress).
565      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
566      The key modifications are in model/src/taueddy_external_forcing.F
567      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
568    
569    checkpoint59r
570    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
571      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
572      fix option to read coriolis(@ cell-corner) from files with CS-grid.
573    o pkg/mnc: add some attributes to standard 1D-coordinate variables
574    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
575      mass points, when using mnc for output
576      - add runtime parameter (missing_value, missing_value_int) to override
577        default (which is the value of getcon('UNDEF'))
578    o pkg/mnc: prepare mnc for the actual use of missing values with the
579      diagnostics package: small fix in mnc_cw_readwrite.template and more
580      initialisation of never used fields
581      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
582      versions
583    o pkg/thsice/thsice_ini_vars.F added default initial values so that
584      thermodynamics sea ice solver does not blow up when some initial fields
585      are missing.
586    o move from external_forcing_surf.F to ini_forcing.F
587      the p-coord. hack consisting in using pLoad to set phi0surf ;
588      update output of tutorial_global_oce_in_p (affected @ truncation level).
589    o Freshen up a bit hs94.1x64x5, notably:
590      remove rotationPeriod and tRef=5*0. (adjoint only), and add
591      exactConserv=.TRUE.
592    o pkg/generic_advdiff:
593      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
594      applies to files where Temperature & Salinity 2nd Order moments are used.
595    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
596      this uses a dynamically allocated internal state data structure
597      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
598      and requires a fortran 90 compiler
599    
600    checkpoint59q
601    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
602       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
603    o Refresh tutorial_global_oce_biogeo, notably:
604      - change bathymetry (put back seamounts in ACC, use hFacs)
605      - change EOS (POLY3 --> JMD95Z)
606      - use Bryan-Lewis vertical diffusivity
607      - use multidimensional advection
608      - remove old virtual virtual in dic pkg, now done through ptracer pkg
609      - change a couple of parameters in dic pkg
610    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
611    o pkg/obcs: change default to OBCSfixTopo = .true.,
612      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
613      - replace "debugMode" with "debugLevel .GE. debLevB"
614    o implementation of TAF directives for gchem,cfc,dic
615    o remove "exp5" (replaced by tutorial_deep_convection).
616    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
617      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
618      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
619      --> changes results in exp4, seaice_obcs
620    o tutorial_deep_convection :
621      update the set-up and increase resolution and domain size ; start
622      from pseudo initial conditions = output at t=120mn in order to see
623      something happening when running testreport.
624    o pkg/seaice: add os7mp as an advection scheme
625                  add check for advection schemes
626                  add a flag for restoring T and S underneath sea ice
627    o pkg/my82: add netcdf-support and diagnostics
628    o thsice pkg:
629      - Now hsMax limits snow height by turning it into ice following
630        flooding scheme (and now conserving energy)
631      - Slight rewriting of the formula in thsice_calc_thick.F
632      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
633      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
634    
635    checkpoint59p
636    o gchem / dic / cfc :
637      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
638      - add new parameter files: "data.dic" & "data.cfc" ;
639      - various re-arrangement in initialisation & header file ;
640      - fix tutorial_global_oce_biogeo for multi-threaded test.
641    o pkg/dic: test for "pickup_dic" file when restarting ;
642      if no pickup-file, can restart with a re-initialised pH (same as it did
643      before) providing pickupStrictlyMatch is set to False.
644    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
645      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
646    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
647      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
648    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
649     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
650       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
651    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
652       scheme to use for vorticty-term ;
653     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
654       (with default selectVortScheme, return to original discretisation)
655     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
656    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
657    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
658      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
659      also fix diagnostics VISCAHW & VISCA4W.
660    
661    checkpoint59o
662    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
663    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
664      move a few statemens out the main loop into separate loops
665    o pkg/shelfice:
666      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
667        (kg/m^2/s), does not break tests, because in verification/isomip,
668        rhoConstFresh=rhoConst (by accident)
669      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
670      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
671        new file model/src/seawater.F, so that they are available for all pkgs.
672      - convert potential temperature into in-situ temperature. This changes the
673        isomip tests => update tests
674    o add a flag writePickupAtEnd (default=true) to be able to suppress
675      writing a pickup at the last timestep
676    o tools/mpack-1.6 :
677      - disable automake (not working) and autoconf (not needed).
678      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
679        also cleaner with much less compilation warnings.
680    o pkg/profiles:
681      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
682      (for "less than 32 characters name" compiler requirement)
683    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
684      conditions that have a different sampling frequency than S/T/U/V obcs
685    o pkg/diagnostics (stats-diags):
686      - fix global Min/Max in case 1 processor get only empty tiles
687    o genmake2: replace (4 times)
688         make genmake_tc_1.o >> genmake_warnings 2>&1
689      with
690         COMM="$CC $CFLAGS -c genmake_tc_1.c"
691         echo $COMM >> genmake_warnings
692         $COMM >> genmake_warnings 2>&1
693      to make genmake2 always see the value of CC as specified in the optfile.
694    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
695      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
696      - modify verification advect_cs test to test SOM-advection on CS-grid.
697    o pkg/ctrl:
698      - Rewrite of ctrl_map_ini_ecco.F,
699        introducing a generic routine (ctrl_map_ini_gen.F).
700      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
701    
702    checkpoint59n
703    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
704      number in dedicate array "hdiag":
705      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
706        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
707      - many small changes (integer format) for large number of diagnostics
708      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
709        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
710    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
711      usingSphericalGrid, this allows to define the rotated grid coordinates
712      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
713      geographical coordinates according to the inverse of the rotation defined
714      by the Euler angles, so that Coriolis parameter and online-interpolation by
715      exf works with the geographical coordinates on XC/YC/XG/YG.
716      Naturally, this feature does not work with all packages, so some
717      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
718      profiles), because there the coordinates are assumed to be regular
719      spherical grid coordinates.
720    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
721      - introduce isopycnal diffusion coefficient control.
722    o tools/adjoint_options:
723      - additional control vector components.
724    o pkg/mnc: have mnc create marginally meaning full coordinate variables
725      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
726    o pkg/mypackage:
727      - add example of read/write pickup for state-var ;
728      - add entry points to the main code for state-vars diags & write-pickup.
729    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
730      transitions for useExfYearlyFields
731      - add new subroutine that determines the file to read from for
732        use*YearlyFields = .TRUE. and .FALSE.
733      - add a verification experiment to global_with_exf that tests
734        useExfYearlyFields with USE_EXF_INTERPOLATION defined
735    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
736      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
737      subroutines (which could be generated from a template, because they are
738      almost identical), for now they are included in obcs_prescribe_read.F for
739      simplicity
740    o pkg/exf:
741      - add a little more diagnostic to exf_interp_read (in analogy to
742        mds_read_field, can be turned off with debugLevel < debugLevA=1)
743      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
744        ugly but fast by unrolling short inner loops, inserting a unroll=8
745        directive in routine lagran, and splitting a loop and making do while the
746        outermost loop (the latter requires the intoduction of index arrays)
747    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
748    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
749      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
750    o verification/seaice_obcs: updated for restart test and latest options
751    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
752      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
753      for now this is only available for the C-grid code and also within
754      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
755    
756    checkpoint59m
757    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
758      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
759    o gad_som : fix flux output (& diagnostics) to have same units as other  
760      advection scheme fluxes (was previously multiplied by deltaT).  
761    o added verification/seaice_obcs both to test seaice open boundaries
762      and to provide an example matlab scrpt for generating them
763    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
764    o pkg/salt_plume: clean up salt_plume_frac.F to
765      remove redundancy in PlumeMethod 1 and 4
766    o pkg/kpp: added saltplume diagnostics
767    o pkg/obcs and pkg/seaice:
768      - do not set uice and vice to zero when OB*icefile are unspecified
769      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
770      - moved seaice tracer obcs after call to seaice_growth
771    o pkg/salt_plume: added various options for salt plume depth
772      criterion and for vertical distribution of the salt
773    
774    checkpoint59l
775    o pkg/ptracers: new version of ptracers pickup:
776      read meta file and write only fields which are needed to restart.
777      ( same logic as main pickup file ; also using pickupStrictlyMatch )
778    o pkg/seaice:
779      - add timescale for melting due to warm mixed layer as a means of
780        setting SEAICE_availHeatFrac more conveniently
781      - add a CPP-flag/runtime parameter check for flooding algorithm
782      - reformulated availHeat in seaice_growth.F to be independent of AREA
783    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
784      unit changes
785    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
786    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
787      SX vector computer.
788    o pkg/seaice:
789      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
790        seaice forcing fields can now be read only through pkg/exf
791      - removed some unused halos
792    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
793    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
794      or U/VICE from U/VWIND before computing U/VSTRESS
795    
796    checkpoint59k
797    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
798      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
799    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
800      all experiments pass when compile with un-initialised var. checking option.
801    o added pkg/salt_plume
802    o script to test restart (for now, in MITgcm_contrib/jmc_script)
803    o pkg/seaice: new read/write pickup version.
804      read meta file and write only fields which are needed to restart.
805      ( same logic as main pickup file ; also using pickupStrictlyMatch )
806    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
807    o lab_sea.hb87: modify the domain & update output.hb87.txt :
808      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
809      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
810      process. Fixed here by closing the domain at the Northern boundary.
811    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
812    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
813      a set of consecutive levels in/from a 3-D array.
814    o pkg/ptracers:
815      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
816      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
817    
818    checkpoint59j
819    o in pkgs: dic, obcs, offline, rbcs:
820      standard way to compute coeff. for time interpolation between 2 time reccords
821      which retains full precision (& make results less dependent on compiler).
822      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
823    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
824      packages instead of reading ice cover and wind speed separately
825    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
826     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
827      to allow to compile customized code before the update)
828    o cleaning-up:
829      - fix CPP instruction syntax in pkg/obcs
830      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
831        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
832      - fix some threads issue in IO parts.
833    o pkg/dic:
834      - add tons of "_d 0" (--> much better testreports !)
835       and then update outputs of tutorial_global_oce_biogeo
836    o pkg/mom_fluxform:
837      add a special version of momentum advection intended to conserve momentum
838      next to a bathymetry step or a coastline edge. (default = off = #undef)
839    o new read/write pickup version:
840      - for now, only implemented for main (mdsio) pickup file.
841      - write out only what is needed to restart; merge pickup_nh , pickup_ph
842        and main pickup together.
843      - read meta file; read only what is needed to restart; stop if a field
844        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
845        if it make sense (even if the restart is not perfect).
846      - if no meta file, assume that pickup to read corresponds exactly to
847        a pickup that would currently be written.
848      - read pickup written in the old format (until checkpoint59i) if it
849        recognizes an old meta file (no field-list).
850      - add a meta file in exp. which starts from a pickup: 2 cases:
851        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
852         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
853        b) a meta file describing the content of the associated pickup file
854         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
855    o pkg/mdsio & pkg/rw:
856      - new routine to read a meta file ; new set of routine to read
857        Multiple-fields file (with meta file).
858    o added open boundary conditions capability for seaice
859        HSNOW, HSALT, UICE, and VICE
860    
861    checkpoint59i
862    o adjoint:
863      * fix multiDimAdvection adjoint
864        (partial recomputation problem by TAF for fVerT(:,:,kDown)
865        and comlev1 size definition (maxpass vs. max. number of tracers)
866      * verification/global_ocean.90x45x15 adjoint now tests
867        NLFS and multiDimAdvection using DST3 (=30)
868      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
869    o pkg/kpp: add "_d 0" to real constant (if missing);
870      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
871      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
872    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
873      for internal parameters related to restart process (formerly from PARAMS.h)
874      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
875    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
876      as argument. (only atm2d & obcs write_pickup have not yet been updated)
877    o pkg/monitor:
878      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
879      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
880      - account for deep Atmosphere factor and density factor (anelastic)
881    o added open boundary conditions capability for seaice HEFF and AREA
882    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
883      thermodynamics
884      - requires a little reorganization, which affects the testreport results
885        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
886        so that now the conservative form is tested
887      - add a few comments
888    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
889    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
890    o add new diagnostics to seaice: advective, diffusive fluxes (only for
891      multidim-advection, for scheme 2 they are not filled) and transports,
892      thermodynamic growth rates
893    o change units of EmPmR (inside the code, + within coupling interface)
894      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
895      Affects results @ truncation level (cg2d match) and update output of
896       experiments: lab_sea(6), global_ocean.90x40x15(10),
897      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
898      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
899      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
900      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
901    
902    checkpoint59h
903    o pkg/exf:
904      - improve vectorization by moving if-statement out of loops in
905        exf_mapfields, exf_radiation
906      - exf_bulkformulae.F: introduce 2D fields and vectorize code
907    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
908    o testreport:
909      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
910        monitor & update offline_exf_seaice exp. output.
911      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
912    o pkg/seaice:
913      - bug fix in the evp solver: boundary conditions were affected be
914        masking of zMax/zMin (changes results)
915      - minor bug fix in boundary conditions in seaice_calc_strainrates
916        (changes results for no_slip)
917      - seaice_lsr.F: make interpolation of eta dependent on boundaries
918      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
919      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
920        stress formulation and no-slip boundary conditions
921    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
922      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
923    o pkg/seaice: a first HSALT time stepping equation has been checked in
924    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
925      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
926      without requiring DO-IF statements
927    o pkg/thsice:
928      use continuous power-law function for partition of energy between lateral
929      melting/freezing and thinning/thickening ; old code using step function
930      still available with #undef THSICE_FRACEN_POWERLAW
931      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
932    o testreport: change AD testing : check against results/output_adm.txt
933      using same scripts as for forward test.
934    
935    checkpoint59g
936    o adjoint testing: in preparation for changing testreport:
937      - output format: cost and grad written on separated lines
938      - ad output results in directory "results" (instead of "results_ad")
939    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
940    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
941    o pkg/ecco: allow user defined cost function contributions
942    o testreport:
943      Allow to choose (per experiment) the list of tested output variables
944       and the main variable (used to issue a pass/FAIL ) ;
945      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
946      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
947      Also modify printing of summary:
948       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
949       b) echo the list of tested variables in the individual summary.txt of
950          each experiment.
951    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
952      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
953      (but still depend on the tile decompostion of the domain).
954    o pkg/seaice: change a discretization detail to make the B-grid code
955      "more symmetric". This change is likely to remove all "ridges/leads" that
956      where quasi-aligned with the grid in B-grid solutions. It may also be
957      the solution to the stress coupling issues with the B-grid.
958    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
959      remove .cvsignore from input dir. (since testreport no longer run here).
960    o pkg/thsice:
961     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
962     - fix reshaping of sea-ice just after advection:
963       melt all the ice only if ice-volume is too small.
964     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
965       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
966     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
967    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
968      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
969    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
970      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
971      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
972      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
973      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
974      -> update output.txt
975    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
976     this affects truncation error: -> update output.txt of exp:
977      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
978      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
979    
980    checkpoint59f
981    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
982    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
983      a bounded range (in forward mode)
984    o pkg/ecco, ctrl, autodiff and mom_common:
985     internal parameter controls, completements of implementations
986    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
987    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
988      (not seem any difference in testing results).
989    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
990       at face corners.
991    o pkg/generic_advdiff:
992     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
993      loop range indices for computing vertical advection tendency
994      and do the calculation in the interior only (no overlap) ;
995      for now, only implemented for SOM advection (to save CPU time).
996     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
997    o exch2 adjoint
998      First set of changes:
999      - add exch2 hand-written adjoint templates
1000      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1001        This will require cleanup in pkg/autodiff/*.F
1002        (changed routines currently kept separate in verif. code/)
1003      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1004        that used to hide exch2 or cubed-sphere specific code
1005        (commented via 'cph-exch2')
1006    o pkg/seaice
1007      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1008    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1009       output of global_ocean.cs32x15.thsice .
1010    
1011    checkpoint59e
1012    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1013      for B-grid vector (not yet tested) and C-grid vector (<- only used
1014      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1015    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1016      (#ifdef ALLOW_SALT_PLUME)
1017    o gather_2d/scatter_2d: removed halo regions
1018    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1019      scheme and the corresponding test case (under front_relax dir). For now,
1020      only available with Skew-flux form and not yet tested in realistic set-up.
1021      adjoint: store directives updated, but gradient checks deteriorated,
1022      so maybe GM/Redi adjoint is now broken.
1023    o seaice adjoint
1024      * add AREA, HEFF, HSNOW as control variable
1025        (should not change lab_sea results)
1026      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1027    o pkg/seaice:
1028      * added computation of saltFlux in seaice_growth;
1029        For time being, sea ice salinity is assumed constant
1030        contribution of snow flooding to freshening of sea ice is neglected.
1031        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1032        defaults to 0.0 in order to maintain backward compatibility.
1033        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1034      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1035      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1036        heat content used to melt or grow ice
1037      * commented out cap of HICE: it helps keep ice thinner
1038      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1039      * applied OBCS T/S mask to HEFFM sea ice mask
1040    
1041    checkpoint59d
1042    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1043     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1044     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1045    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1046     and change default value of parameter "GM_Small_Number";
1047     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1048       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1049       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1050    o pkg/ecco: cost function when applying pkg/smooth to controls
1051    o pkg/ctrl: add forcingPrecond run time parameter
1052    o pkg/seaice:
1053     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1054     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1055       changes verification/lab_sea
1056     - rearrange implicit part of u-equation in LSR solver to make it easier to
1057       read, understand, and debug. This causes changes at the truncation level.
1058     - fix (serious) bug in the boundary conditions (sign error in the implicit
1059       part) of the LSR solver. Changes all LSR results.
1060     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1061       is initilized with small values - does not change lab_sea results.
1062     - added HsnowFile initialization capability
1063    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1064     initialization of pkg/smooth and application to control vector
1065    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1066    o dependencies: pkg/profiles requires pkg/cal
1067    o pkg/profiles:
1068     - added option ALLOW_PROFILES_GENERICGRID
1069         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1070         that interpolation information (grid points and coefficients) is provided
1071         within the netcdf input files.
1072         -> sample matlab scripts can be found in MITgcm_contrib/gael
1073         that allow you to prepare netcdf input files.
1074     - also modified: cleaner include statements, cleaner error print statements,
1075       cleaner stops when error, and more tests of the netcdf input files consistency.
1076    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1077    o pkg/seaice:
1078     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1079       requires a new routine: seaice_diagnostics_fill.F
1080     - make sure that seaice does not move if not forced (pressure replacement
1081       method, Hibler and Ip, 1995), changes results
1082     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1083     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1084       It is turned off by default (=-1.), because it changes the results.
1085     - make it possible to read AREA from a file, too.
1086    
1087    checkpoint59c
1088    o add S/R and diagnostics for oceanic mixed-layer depth
1089    o move GMRedi call after all vertical mixing schemes (including KPP)
1090    o pkg/thsice:
1091     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1092      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1093    o pkg/obcs:
1094     - bug fix for balance code
1095    o pkg/seaice:
1096      - allow values of SEAICE_elasticParm > 1
1097      - add new parameter SEAICE_evpTauRelax as an alternative
1098        to SEAICE_elasticParm
1099      - make lsr boundary conditions free slip (by default), changes result
1100      - add code for no slip boundary conditions for lsr
1101      - set minimum of zeta to zero (and not 4e8) (changes results)
1102      - add a cap on AREA after advecting AREA if seaice_growth is not called
1103    o change calculation of Visbeck K:
1104      - no longer depend on tapering scheme; instead, compute slope (limited
1105        by GM_maxSlope). this is equivalent to what was comuted before with
1106        clipping or linear tappering.
1107      - fix vertical averaging (wrong by 1/2 level)
1108      - leave the old version (but will not be maintained) within
1109        #ifdef OLD_VISBECK_CALC / #endif
1110      - update output of exp. ideal_2D_oce
1111    o change error catch in calc_r_star to improve vectorization
1112    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1113      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1114    o adjoint:
1115      Re-organized adjoint checkpointing according to Matt Mazloff
1116      (but with modifs/completions/cleanups)
1117      Storing is now bundled into large arrays to optimized I/O
1118      (and second step in cleanup of the_main_loop)
1119    
1120    checkpoint59b
1121    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1122      - export/import (between ocean & coupler) fields needed for ocean DIC.
1123    o pkg/seaice:
1124      - get rid of three more exchanges seaice_calc_viscosities (required
1125        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1126      - bug fix in seaice_ocean_stress (update of lab_sea required)
1127      - reduce loop boundaries to necessary minimum also in seaice_evp
1128      - go back to the old way of computing deltaC/Z as the adjoint likes that
1129        better
1130    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1131      passive tracer to an Age Tracer) + update output.txt
1132    o pkg/exf:
1133      - implement A-grid / C-grid selection for wind-stress input files.
1134      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1135      for now, in exf_bulk_largeyeager04.F only :
1136      - change implementation for case where windspeed + 2. components wind-stress
1137        are read-in. AND use rhoConstFresh to convert evap.
1138    o pkg/seaice:
1139      - use correct EXCH_UV for wind-forcing (on A-grid).
1140      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1141        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1142    o pkg/exf:
1143      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1144      EXF_INTERPOLATION:
1145      - merge global_with_exf/code version of exf_interp_read.F
1146        to the main code ;
1147      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1148        reading the file ; Important: This options needs to be defined to recover
1149        previous code.
1150        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1151      - no longer loose real*8 precision along the way when using exf_iprec=64.
1152    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1153      - change discretisation of evp-solver in order to avoid another exchange
1154        (changes lab_sea) and clean up a little
1155      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1156        help the adjoint (this also changes the results slightly)
1157      - add a few "_d 0" where they had been missing in seaice_evp.F
1158      - cleaning up: remove unused seaice_calc_rhs.F
1159    o pkg/exf: some cleaning-up:
1160      - change various "constants" into runtime parameters
1161      - cleaned-up Large&Yeager04 routine which should eventually
1162        replace exf_bulkformulae.F (changed names of S/R and CPP)
1163        and merged various ALLOW_ATM_WIND options
1164     only used with thsice pkg (in thsice_get_exf.F):
1165      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1166        which are used when useStabilityFct_overIce=TRUE (= the default)
1167      - change default values of ice & snow emissivity and scale downward LW
1168        by ice & snow emissivity.
1169    o pkg/thsice:
1170     fix few little problems, in thsice_calc_thickn.F:
1171      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1172      - melt only laterally if hIce < hThinIce (as the comments say)
1173      and in thsice_extend.F:
1174      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1175      - start to form ice as soon as the minimum ice-volume is reachable.
1176     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1177      and cpl_aim+ocn
1178    o pkg/kpp
1179     - move computation of surface related input fields to KPP into a new
1180       subroutine kpp_forcing_surf.F
1181     - remove wrong (within bi,bj loops) EXCH calls.
1182     - little cleaning (add argument myThid in last position, cvs header ...)
1183     - for now, fix conservation problem by exchanging KPPviscAz (may not
1184       be the best fix)
1185    o pkg/seaice
1186     - check for inconsistent evp parameter/cpp-flag combination
1187     - remove leftover errIO flat for obsolete name list error handling
1188    o OpenAD
1189     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1190    
1191    checkpoint59a
1192    o pkg/seaice: some parameter clarifications and a little bit of clean up
1193    o pkg/thsice: rename run-time parameters:
1194       himin       -> hIceMin
1195       himin0      -> hThinIce
1196       hihig       -> hThickIce
1197       i0          -> i0swFrac
1198       transCoef   -> bMeltCoef
1199       frac_energy -> fracMelting
1200      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1201       with default values (for now) that do not change the results.
1202      remove old version of thsice vars advection in pkg/seaice.
1203    o in FFIELDS.h:
1204      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1205      - make pLoad & sIceLoad always available (but still only used if
1206         ATMOSPHERIC_LOADING is #define).
1207    o pkg/kpp: replaced _KPP_RL with _RL
1208    o bug fixes for vertical diffusivity computations when both KPP and
1209        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1210        are no longer updating the vertical diffusivity array
1211        (passed as argument) but are (re-) setting those arrays.
1212    o pkg/seaice: fix bug in evp solver, while doing that
1213      - change (improve?) discretization of stress computations for both
1214        cgrid-lsr and evp solver
1215      - add a new routine to compute strain rates
1216      - the above changes lab_sea results
1217      - add no slip conditions for evp solver (off by default), lsr-version
1218        may follow
1219      - fix exchange for shear at Z-points (does not change lab_sea)
1220      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1221        (to force the user to pick a time step since there is not "safe" way
1222        of choosing it)
1223      - add principal stress diagnostics
1224      - rearrange fields for evp a little to avoid having to call a: too many
1225        exchanges and b: exchanges for stress trensor components which we do
1226        not have.
1227      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1228        of evp, complete rewrite for lsr case (latter is does not yet work
1229        in all cases)
1230    o pkg/kpp: add code to have mixing in shelf ice caverns
1231      - add myThid to all kpp routines (long overdue)
1232    
1233    checkpoint59
1234    o pkg/exf:
1235      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1236        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1237      - move exf header files from lower_case.h to UPPER_CASE.h ;
1238        add missing cvs Header & Name
1239      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1240      - add namelist param. selectStressGridPosition, exf_monFreq
1241      - retire many _CLIM routines, and remove data.exf_clim
1242        + params moved to data.exf
1243        + climsst, climsss now handled by exf_set_gen, i.e.
1244          climss?period=0 refers to constant field,
1245          climss?period=-12 to monthly forcing
1246      - split up namelists in data.exf
1247    o pkg/seaice:
1248      - remove seaice_exch and seaice_exch_uv
1249      - remove superfluous exchange of theta
1250      - add myThid to seaice_budget_ocean/ice
1251      - add new interface for atmospheric wind forcing (C-grid only)
1252        + new routine
1253        + two new field (taux, tauy for stress over ice)
1254        + removed one global field (DAIRN) for C-grid case only
1255    o pkg/thsise
1256      - 2nd set of modifs for thsice adjoint in conjunction with exf
1257    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1258    
1259    checkpoint58y_post
1260    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1261      vertical diffusivity, similar to that in MOM4; turned on using
1262      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1263      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1264    o Added capability for 3D specification of background vertical diffusion
1265      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1266      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1267      "data" file that contains the 3D vertical diffusivity coefficients.
1268    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1269      - add code within pkg thsice to advect & diffuse sea-ice fields
1270      similar to (and will replace) what has been added in  seaice_advdiff.F,
1271      but: - conserving Mass, Heat & Salt.
1272           - better when using non-linear advection scheme (not yet fully tested)
1273           - can also be used in atmospheric set-up (for now, only the diffusion).
1274    
1275    checkpoint58x_post
1276    o IO option for global-file compact format:
1277      - add options when generating topology (utils/exch2/matlab-topology-generator)
1278      - add I/O capability (pkg/mdsio).
1279      - adapt utils/matlab/rdmds.m to read this format.
1280      for now long-line format not yet supported by pkg/mdsio (& exch2).
1281    o shelfice: add a few diagnostics
1282    
1283    checkpoint58w_post
1284    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1285      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1286      (and replace horiVertRatio in NH code).
1287      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1288                         and tutorial_plume_on_slope (sensitive to truncation)
1289    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1290      directly to drive seaice model (C-grid only)
1291    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1292     - reintroduce computation of wind from stress,
1293     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1294       mass points to avoid tau = 0
1295     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1296    o rdmnc.m: make it work with "global" files created with gluemnc
1297    o rdmnc.m : some improvements in dealing with singleton dimension
1298      (tested on all testreport mnc output files).
1299    o genmake2: disable pkg/profiles if netcdf test fails.
1300    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1301    o move call to cal_readparms up to make calendar parameters/variable available
1302      to all packages
1303    
1304    checkpoint58v_post
1305    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1306      useDynP_inEos_Zc tested.
1307    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1308    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1309      and portions thereof.  See read_cs.txt for description and examples.
1310    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1311      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1312      following the great-circle arc between those 2 points.
1313    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1314      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1315    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1316     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1317     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1318     - still needs work (not working with some options ; efficiency to improve)
1319       and serious testing.
1320     - use this scheme for temperature & salinity in 2 advection test exp.:
1321       advect_xy & advect_xz, respectively.
1322    
1323    checkpoint58u_post
1324    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1325    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1326    o testreport: add option "-skipdir" to skip some test.
1327    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1328      momentum calculation.
1329    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1330    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1331      remove checkpoint.F and the_correction_step.F (no longer used);
1332      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1333    o add option (linFSConserveTr) to correct for tracer source/sink due to
1334      Linear Free surface
1335    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1336    o pkg/thsice: fix reading mnc-pickups
1337    
1338    checkpoint58t_post
1339    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1340    o pkg/mdsio:
1341     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1342       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1343       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1344     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1345     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1346       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1347     - new S/R (to replace MDSWRITEMETA), which allows to write more
1348       informations (variable names, time ...) to meta files.
1349     - modify rdmds.m to give back the meta file content.
1350    o pkg/diagnostics: change vertical interpolation to be safer, and more
1351       flexible (define p-levels to interpolate to in data.diagnostics);
1352      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1353       diagnostic pointer.
1354    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1355    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1356    o fix multi-category seaice:
1357     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1358       SEAICE_MULTICATEGORY
1359     - fix short wave heat flux
1360    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1361       and allow to use EVP solver. Change forward lab_sea: test both EVP
1362       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1363    o Initial check-in of lab_sea adjoint
1364      (very similar to natl_box_adjoint/code_seaice)
1365      * used C-grid and EVP solver
1366      * used KPP, GM/Redi
1367      * uses inAdExact=.TRUE.
1368      * gradient checks fail for both ADM and TLM
1369        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1370        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1371        issue is related to forward mismatch between g77 an ifort
1372    o pkg/seaice: overhaul of thermodynamics
1373     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1374     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1375     - move a few global fields out of SEAICE.h into seaice_growth.F and
1376       make them 2D (FICE/QNETO/ ...)
1377     - remove FO (it is the same as QNETO)
1378     - introduce a few local fields to avoid modifying external fields such
1379       as atemp, etc.
1380    
1381    checkpoint58s_post
1382    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1383      changed exf_set_gen.F so that
1384        genperiod=0 means input file is one time-constant field and
1385        genperiod=-12 means input file contains 12 monthly means
1386    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1387      this affects truncation error ; generate new output file for exp. which
1388      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1389        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1390        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1391        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1392        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1393        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1394    o start implementation of deep-atmosphere and anelastic formulation
1395    o verification: remove 2nd copy of input files and use script "prepare_run"
1396      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1397    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1398    o profiles: fix for multithreaded case
1399    
1400    o diagnostics: rename few diags:
1401      s/'PRESSURE'/'RCENTER '/g
1402      s/'TICE    '/'oceFreez'/g
1403      s/'TAUX    '/'oceTAUX '/g
1404      s/'TAUY    '/'oceTAUY '/g
1405      s/'SWFLUX  '/'oceQsw  '/g
1406      s/DIFx/DFxE/g
1407      s/DIFy/DFyE/g
1408      and add few ocean-forcing diagnostics:
1409      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1410    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1411      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1412      as actual snow thickness.  It now refers everywhere to effective snow
1413      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1414    
1415    checkpoint58r_post
1416    o modifications to pkg/seaice/growth.F, which change results of
1417      lab_sea experiment: fixes pertain to melting snow over open water, to
1418      masking EVAP under sea ice, and to using the correct AREA variable for
1419      computations of EVAP, PRECIP, HSNOW, and GHEFF
1420    o add ability to read bathy, salt, and theta using MNC (off by def)
1421    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1422      both are turned off by default and do no change any results
1423    o seaice advection with pkg/thsice: a step toward the use of non-linear
1424      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1425    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1426      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1427      in natl_box (affects results @ truncation level: update output.txt)
1428    o multi-threading and IO:
1429      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1430      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1431        (needed to work with SingleCpuIO): tested in all verif. exp.
1432    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1433      affects the results (but none of the verification test uses this scheme).
1434    o Adding some pkg/diagnostics capability to pkg/seaice
1435      (will certainly be subject to changes)
1436    o ctrl: adding new control variables:
1437      lwflux, lwdown, evap, snowprecip, apressure, runoff
1438    
1439    checkpoint58q_post
1440    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1441      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1442      high_res_cube configuration by 4% on Columbia.
1443    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1444      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1445      dynamical allocation (seems to work in multi-threaded).
1446    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1447      single CPU io) so that TAF does not have to see EESUPPORT.h
1448    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1449    
1450    checkpoint58p_post
1451    o obcs: stop if obcs is used with useCDscheme = .true.
1452    o shelfice:
1453     - fix a sign error so that no slip at shelfice interface works
1454     - remove stop for combination non-hydrostatic code and shelfice. That does
1455       not mean, that the results are correct, but at least they are numerically
1456       stable
1457    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1458    o added adjoint exch routined for all exch*3d* routines
1459      and updated flow directives
1460    
1461    checkpoint58o_post
1462    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1463      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1464    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1465      and clean-up reading/writing of pickup files.
1466    o fix local version of read/write pickup (NH part) in rotating_tank/code
1467    o simplify EXCH interface:
1468     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1469     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1470    o added the regrid package
1471    o shelfice:
1472     - add a simple boundary layer scheme to reduce noise
1473     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1474    
1475    checkpoint58n_post
1476    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1477       local variable (not in common block).
1478    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1479      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1480      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1481        to work with SingleCpuIO.
1482    o add "_d 0" to real constant of pkg/cfc subroutines ;
1483       update exp. cfc_exemple & tutorial_cfc_offline output files.
1484    o multi-threading and IO:
1485      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1486        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1487      - barrier before and after reading.
1488      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1489      - avoid using MDS_WRITELOCAL for LAND pkg output.
1490      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1491        common-block variables ; Allows multi-threading with master-thread IO.
1492    o change default MAX_NO_THREADS from 32 to 4 ;
1493      and stop cleanly when MAX_NO_THREADS is too small.
1494    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1495    
1496    checkpoint58m_post
1497    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1498       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1499    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1500       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1501       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1502    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1503        add MITgcm_tutorials (= code + all the tutorials)
1504    o ecco, option to compute cost for total ssh (mean+anom)
1505    o consistent with addition of ptracer and ssh in pkg/profiles
1506    o profiles: adding ptracer and ssh
1507    o testreport: change multi-test output-file name
1508      (from output.txt.{name} to output.{name}.txt)
1509    o profiles: now ok for mutli-tiles case
1510    o seaice: add 4 parameters for different advection schemes for area,
1511      (effective) seaice thickness, enthalphy, and snow height. Their default
1512      is the standard parameter SEAICEadvScheme
1513    o calc_gw:
1514     - add cosFacU in zonal viscous flux (harmonic.visc.).
1515     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1516       of tutorial_plume_on_slope.
1517    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1518    o calc_gw: true flux-form, account for horizontal grid spacing.
1519      update rotating_tank results, but not plume_on_slope (affected at
1520      truncation level, 11 digits).
1521    
1522    checkpoint58l_post
1523    o calc_gw:
1524     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1525     - remove side-drag for now (need to fix it); update plume_on_slope results.
1526     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1527    o commit code to make SST/SSS weights spatially variable
1528      (based on either variable in-situ or variable initial T/S weights)
1529    o pkg/ecco:
1530      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1531        now based on horizontally varying weights wthetaLev, wsaltLev
1532      * cost_averagesflags now returns year indices in addition to day, month
1533      * sflux balance is performed on annual basis
1534        (sflxumm, sfluxmm2, bal_sfluxmm)
1535      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1536        including separate counting and multipliers
1537    o pkg/rbcs
1538      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1539    
1540    checkpoint58k_post
1541    o testreport:
1542     - always build in dir. "build" (if not there, mkdir build instead of building
1543       & running in input)
1544     - run in dir run (if it exists), in build otherwise.
1545     - call prepare_run (if input/prepare_run exists)
1546     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1547    o pkg/exf modifications to interpolation and rotation routines for more
1548       reasonable treatment of North Pole singularity: for tracers North Pole
1549       value is set to northernmost zonal-mean value, for zonal velocity it is
1550       set to zero, and for meridional velocity it is set to northernmost value.
1551    o pkg/exf/exf_check_range.F
1552     - add tile index to diagnostics and move stop statement to the very
1553       end of the routine.
1554    o pkg/diagnostics: (diagnostics_main_init.F)
1555      define title of isomorphic variables according to the current config.
1556    o pkg/thsice with pkg/seaice dynamics:
1557    - fix domain of computation (interior only, required for exf) and do exchanges
1558    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1559    o towards a standard way of dealing with multi-threading in MONITOR
1560      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1561    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1562       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1563    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1564    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1565    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1566       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1567    o tracer advection:
1568     - clean-up and simplify calc_common_factors.F
1569     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1570       advection subroutine (but still not used within DST advection S/R)
1571    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1572    
1573    checkpoint58j_post
1574    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1575      from file (collects calls previously in FORWARD_STEP)
1576    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1577    o adjoint store dir. adjusted accordingly
1578    o genmake2
1579      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1580    
1581    checkpoint58i_post
1582    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1583      on wind stress (SEAICEstressFactor defaults to 1.)
1584    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1585      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1586    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1587      on CS-grid: no longer loosing mass.
1588    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1589    o pkg/ggl90: fix sloppy output and fix a bug
1590    o pkg/seaice: added SEAICEuseEVPpickup parameter
1591      - Set to false in order to start EVP solver with
1592        non-EVP pickup files when using SEAICEuseEVP
1593      - fix sign error in diffusion in seaice_calc_rhs
1594    
1595    checkpoint58h_post
1596    * Modifications for bottom topography control
1597      o replace hFacC by _hFacC at various places
1598      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1599      o add non-self-adjoint cg2d_nsa
1600      o update autodiff support routines
1601      o re-initialise hfac after ctrl_depth_ini
1602      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1603    * Adding verification for 5x5 box (4-layer) bottom topography control
1604    
1605    checkpoint58g_post
1606    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1607       used for mean seasonal cycle, mean diurnal cycle); add an example
1608       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1609    o pkg/ggl90:
1610      - add parameter (minimum surface kinetic energy)
1611      - fix bug (avoiding division by zero)
1612    o couple pkg/thsice to pkg/seaice:
1613      - modify advection in seaice to accomodate new scalar fields to be advected
1614      - only muliDimAdection scheme work with seaice/thsice
1615      - mapping of thsice-variables to seaice-variables, back and forth
1616      - does not break the verification experiments, but does not give the
1617        desired results either
1618    o pkg/seaice
1619      - make (default) second order advection a bit less confusing?
1620    
1621    checkpoint58f_post
1622    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1623      to pkg/seaice):
1624      - new routines thsice_map_exf and thsice_get_exf provide the interface
1625      - add an additional formal parameter to thsice_solve4temp
1626    o pkg/exf:
1627      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1628      - correct Stefan-Boltzmann constant
1629      - new parameter for longwave surface emittance
1630      - separate some stuff from exf_bulkformulae into new routines  
1631        exf_radiation, exf_wind
1632      - add new parameters and constants: longwave emissivity for ocean, ice
1633        and snow, evaporation parameters over ice
1634      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1635        either wind from stress or stress from wind
1636    o pkg/thSIce:
1637    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1638    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1639       and THSICE_CALC_THICKN
1640    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1641    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1642      to make debugging easier.
1643    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1644    o pkg/bulk_force:
1645      - clean-up comments and parameters ;
1646      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1647    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1648      generate new output for test-experiment: aim.5l_cs.thSI
1649    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1650      testreport accordingly
1651    
1652    checkpoint58e_post
1653    o SEAICE_CGRID adjoint done
1654    o R_STAR adjoint implemented.
1655      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1656      * need to sort out init. of h0facc, etc.
1657    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1658      to be able to use it in pure forward.
1659    
1660    checkpoint58d_post
1661    o upgrade simple test-experiment to tutorial example:
1662     step.1: duplicate the experiment and (step.2) will remove the old copy.
1663      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1664      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1665      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1666      tutorial_global_oce_biogeo    <- copy of dic_example
1667      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1668      tutorial_plume_on_slope       <- copy of plume_on_slope
1669      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1670      tutorial_global_oce_optim     <- empty for now (David ?)
1671      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1672     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1673    o correct a sign problem in cost_scat.F
1674    o obcs and ptracers: fix boundary conditions for advections schemes
1675      with larger stencil
1676    o thsice adjoint: start
1677    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1678      completeness
1679    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1680      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1681    o ptracers adjoint:
1682      * avoid extensive recomputatations
1683      * fix missing re-init. of gptr (missed by TAF)
1684    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1685      me to turn off the excessive output to STDOUT that this package produces
1686    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1687      and add those terms in Vector-Invariant formulation.
1688    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1689      if the control period (xx_hfluxperiod etc) is 0
1690    o in profiles pkg, clean routines and fix details
1691    o in ecco pkg, reading ssh data:
1692      fix problem in case the model does not start at iter0=0
1693    o fix mnc-pickup/restart for ptracers
1694    o new package prifiles:
1695      code to compute profile-based cost by Gael Forget
1696      (modifs in ecco, ctrl, autodiff)
1697    o Benign bug fix in initialization (spotted by M. Mazloff) of
1698      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1699    
1700    checkpoint58c_post
1701    o adjoint: finish NLFS adjoint and provide reference output in
1702      verification/global_ocean.90x40x15/results_ad_nlfs
1703    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1704      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1705      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1706      with SEAICE_CGRID defined.
1707    o move calendarDumps from "data" to "data.cal" and clean-up the code
1708      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1709    o add useEXF & useCAL flags (for now, set in hard-coded way)
1710    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1711      (were missing in NH mode, and wrong in quasihydrostatic mode).
1712      waiting for Chris updated version of calc_gw to add those CALLs.
1713    o fix bug in quasihydrostatic S/R ;
1714      add a test for this option: global_ocean.90x40x15.qshyd
1715    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1716      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1717    o add on/off flag useOffLine for package OFFLINE
1718    o seaice:
1719      - modify advection so that it works also on the C-grid
1720      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1721        problem in multi-tile runs with C-grid
1722      - add flags for clipping ice velocities and/or masking solver forcing
1723      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1724        C-grid solver
1725      - added a few comments to seaice_diffusion.F
1726      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1727        are now exclusive)
1728      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1729        required re-ordering the code a little:
1730       + make DAIRN global variable (defined in SEAICE)
1731       + move computation of the viscosities eta and zeta into a new separate
1732         routine (because I need to recompute them in seaice_ocean_stress.F)
1733    
1734    checkpoint58b_post
1735    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1736      update output.txt of exp. aim.5l_cs.thSI
1737    o various mnc cleanups and improvements:
1738      + shrink lookup tables by factor of ~4
1739      + better error reporting when running out of lookup space
1740      + able to handle longer path/file names (up to 500 chars)
1741    o adjoint:
1742      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1743      - TBD: "hidden" mom_vecinv recomp. in dynamics
1744    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1745     (allow to differentiate between forcing components using new integer flags:
1746      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1747     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1748    o ecco
1749      - enable trend removal from SSH anomaly obs.
1750    o adjoint
1751      - a fix for PmEpR when #undef EXACT_CONSERV
1752      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1753      - try to fix "hidden" recomp. in forward_step for NLFS
1754        (NLFS seems broken sometimes after I checked it in)
1755    o seaice:
1756     - add c-grid version of the dynamic solver:
1757       + three new routines that are the c-grid substitute lsr, dynsolver
1758         and ostres
1759       + put a few fields that were local to dynsolver into global common
1760         blocks, so that I can move the computation of stresses etc into
1761         seaice_lsr (saves coding but may break the adjoint).
1762     - replace more hardwired parameters by runtime parameters
1763     - add ice masks that mask the rhs of the implicit solvers where there
1764       is no ice (commented out in seaice_dynsolver, because i am not sure
1765       if this works properly), eventually this should replace the clipping
1766       of ice velocities in seaice_dynsolver to +/-40cm/s.
1767    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1768      include it only where its needed
1769    o move balancing of fluxes before the call of external_forcing_surf
1770    o seaice:
1771      - correct units of turning angles (now they are really in degrees)
1772      - move computation of GWATX/Y out of main routine into dynsolver
1773      - initialize GWATX/Y in seaice_init
1774    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1775      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1776    o seaice: add runtime flags for turning angles (default to zero)
1777    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1778      and trend from exf forcing and ctrl control adjustments
1779    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1780      (since checkpoint57x_post)
1781    o change the default rotation period to 86164.s = the Earth rotation
1782    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1783      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1784    o seaice advection: add code for choosing between the default (2nd order
1785      central differences) and multiDim advection schemes provided by
1786      pkg/generic_advdiff
1787    o seaice:
1788      - removed all references to SEAICE_GRID.h fields from
1789        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1790        (cubed-sphere configuration will change a little)
1791      - grid computations in seaice_init are obsolete now.
1792      - cleaned up code a little so that is easier to read (hopefully).
1793      - added new (better?) discretizations of default advection and diffusion
1794        (turn on with SEAICEuseFluxForm)
1795      - replace 1 in 3d global fields by kSurface in growth.F
1796      
1797    checkpoint58a_post
1798    o seaice:
1799      - bug fix in advect.F
1800    o shelfice:
1801      - separate shelfice load anomaly from pload (breaks with time
1802        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1803        Its default is 0., but it may be computed more cleverly from (unknown)
1804        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1805        done offline. A good approximation of the pressure load anomaly is
1806        necessary to avoid large initial adjustment processes underneath
1807        deep-reaching shelfice.
1808      - small fix in ISOMIP shelfice_thermodynamics
1809      - add more sophisticated thermodynamics of Hellmer (1989), this is
1810        now the default
1811      - give a few constants more intuitive names
1812    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1813      if bulk formulae are used in long integration (especially EmPmR). Turn
1814      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1815      if balancePrintMean, the imbalance that is substracted is printed to
1816      STDOUT.
1817    o fix bug (typo) in obcs_apply_eta.F
1818    o add a new package shelfice which enables us to model the circulation
1819      underneath shelf-ice with draughts of hundreds of meters.
1820     - works
1821     - to do: + include improved thermodynamics
1822              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1823                instead of new field kTopC
1824              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1825                instead of new field R_shelfIce and new code in ini_depth.F
1826                and ini_mask_etc.F?
1827              + adjust vertical mixing schemes?
1828    o seaice pkg:
1829     - add a cpp-flag to include a simple formula for a salinity dependent
1830       freezing point of sea water at the surface
1831     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1832       meridional stresses are now different (and hopefully correct)
1833    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1834       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1835       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1836    o pkg/diagnostics: add options and parameters for regional-statistics
1837       diagnostics ; define regions by reading a region-mask from a file
1838       (might add other options later)
1839    o pkg/bulk_force:
1840     - add option and parameters to use AIM surface-flux formulae.
1841     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1842       others forcing fields (defined in PARM05, parameter file "data") are loaded
1843       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1844     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1845     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1846     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1847       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1848     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1849    
1850    checkpoint58
1851    o add "--embed-source" option to genmake2 which, when the supporting
1852      tools can be compiled (as determined by genmake2) will turn on the
1853      embed_files package which then embeds the entire MITgcm source code
1854      (*.[fFhc] + Makefile) used for the build within the executable
1855      - requested by CNH but off by default
1856      - adds a paltry <9MB to the mitgcmuv executable in most cases
1857      - only writes the output when useEMBEDSRC in eedata is true
1858    o clean up 3-dim. relaxation codes:
1859      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1860      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1861      * Thanks to Tom Haine for testing!
1862    
1863    checkpoint57z_post
1864    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1865      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1866    o fix the pickup behavior for obcs in combination with ptracers
1867    o fix a bug in ptracers_external_fields_load
1868    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1869      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1870    o transfered surface NH pressure to eta field (if exactConserv).
1871    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1872         and update lab_sea output.txt file.
1873    o completing 3-dim. relaxation code: additional term
1874         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1875      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1876      * At compile time, in "EXF_OPTIONS.h" set
1877          #define  ALLOW_CLIMTEMP_RELAXATION
1878          #define  ALLOW_CLIMSALT_RELAXATION
1879      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1880          tauThetaClimRelax3Dim = 15552000.0,
1881          tauSaltClimRelax3Dim  = 15552000.0,
1882      * 3 cases:
1883          1) Use a constant-in-time 3-dim. field
1884          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1885          3) Real-time relax. to time-evolving prescribed field
1886    o Adding Laplacian-type smoothness constraint on
1887      initial and boundary (forcing) controls (ic, bc)
1888      * enable at compile-time via
1889        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1890      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1891      * Absolute scale somewhat unclear so far
1892      * no area weighting was included since no other cost term does so far
1893    
1894    checkpoint57y_post
1895    First step for a NLFS adjoint
1896    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1897    o new init. routines for calc_r_star, calc_surf_dr
1898    o still need to deal with ini_masks_etc
1899    o testreport seemed happy
1900    checkpoint57y_pre
1901    
1902    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1903    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1904    o add new offset feature to offline pkg (plus minor cleanup)
1905    o cfc fixes for final year of integration
1906    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1907      be in GCHEM_OPTIONS).
1908    
1909    checkpoint57x_post
1910    o fix testreport Pb in multiple test experiment.
1911    o cleanup our namelist syntax in verification:
1912      - make it more F95 standards compliant (some work still needed)
1913      - allows the vast majority of our tests to work with gfortran
1914    o Non-Hydrostatic:
1915     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1916     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1917    o Allow to apply AB on T,S rather than on AB(gT,gS):
1918     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1919     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1920       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1921     - need a "clever" read_pickup to restart from the other AB formulation
1922    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1923    o remove some unused variables (reduces number of compiler warnings)
1924    o adjoint
1925      * Disable useVariableViscosity for adjoint for time being
1926        (there are a number of extensive recomputations)
1927      * Initialize certain variables needed for adjoint
1928    
1929    checkpoint57w_post
1930    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1931                 fix the singleCpuIO RS version of MDSWRITEFIELD
1932       and add a WARNING if using globalFiles=T with multi-processors.
1933    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1934      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1935    o tracer advection scheme:
1936      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1937       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1938       was not very convenient).
1939      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1940       (further tests needed for the implicit DST & Flux-Limiter schemes).
1941    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1942      and sRef for convenience, handy, when you want to initialize
1943      ptracers in a large domain with a constant non-zero value. Also,
1944      untangle ptracers_init.F a little.
1945    
1946    checkpoint57v_post
1947    o change dome exp. to use variable viscosity in side-drag terms.
1948    o remove all the files from the cfc_offline test since they are now
1949      incorporated into tutorial_cfc_offline which has been producing
1950      identical results for a few days of testing
1951    o add new parameter: sideDragFactor to enable half-slip-side BC
1952      and change side-drag S/R to use viscosity from mom_calc_visc
1953      (can switch back by setting sideDragFactor=0.); affects results at
1954      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1955       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1956    o vorticity & strain are now computed without masking, to account for
1957      no-slip-side BC in variable viscosity calculation ; mask is applied
1958      anyway later on, before computing advection/coriolis terms.
1959    o modify exp4 to test new obcs support for reading from external files
1960      and for passive tracers
1961    o fix behavior of ptracers_monitor when monitor output is written to a
1962      netcdf-file; still not independent of monitor.F (writes in the same
1963      file).
1964    o change default value of tRef (put a uniform, meaningful value for ocean
1965      & atmos) and initialize sRef (was missing, as Martin mentioned).
1966    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1967      to be proportional to enstrophy dissipation length.  Thus,
1968       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1969      This is now consistent with Smagorinsky and with the manual.
1970    
1971    checkpoint57u_post
1972    o OBCS and PTRACERS: add open boundary support for passive tracers
1973      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1974        OB-values from file; this is not different from the way theta and salinity
1975        are treated
1976      - however, Orlanski-radiation conditions are not supported, and the model
1977        will stop if you use pTracers and Orlanski at the same time.
1978      - beefed up the rountine obcs_external_fields_load: now only those open
1979        boundary values are overwritten with values from files for which there
1980        are really files, otherwise the OB-fields remain untouched. This makes
1981        it possible to use different OBs at different ends of the domain (as
1982        with EXF)
1983    o reduce number of exch calls in shap_filt (s2).
1984    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1985      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1986    
1987    checkpoint57t_post
1988    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1989    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1990      same truncation, independent of the face number: affects affects several
1991      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1992    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1993      note that biharmonic viscosity + no-slip was not tested in any experiment.
1994    o fix bug in non-linear free-surf side-drag ; generate new output for
1995      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1996    o make mnc honor the writeBinaryPrec flag for most kinds of output
1997    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1998    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1999      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2000    o add brackets in multi-terms sum to get same truncation, independent of
2001      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2002      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2003    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2004      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2005      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2006      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2007      Suggested values of viscosity parameters found in mom_calc_visc.
2008      Many new viscosity diagnostics available.
2009    
2010    checkpoint57s_post
2011    o Add clearing-house for viscosity calculations, mom_calc_visc and
2012      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2013      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2014      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2015      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2016      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2017      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2018      ViscAhStrain and viscAhTension are now retired.
2019    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2020    o In response to JMC's bug report, genmake2 now ignores any soft-links
2021      that it finds in the *current* directory when searching for files.
2022      Soft-links found in any other source directories will still work as
2023      they did before.
2024    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2025      a C routine to unlimit the stack size
2026    o mnc-ify pkg/aim snapshot vars
2027    o mnc-ify pkg/land as requested by Daniel
2028    o various changes to mnc including:
2029      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2030      - output can now be grouped so that all files within a group
2031          change the ITER portion of their names in lock-step together
2032      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2033          and works with both EXCH1 and EXCH2 (but needs more testing)
2034      - writing works for all verification test cases w/ g77 on Linux
2035    
2036    checkpoint57r_post
2037    o make MNC variable initialization happen earlier
2038    o add diagnostics for (almost) each term of the momentum Eq.
2039    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2040    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2041    o remove MINIMAL_TAVE_OUTPUT option ;
2042      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2043    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2044      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2045    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2046    o add time-dependent SST, SSS control
2047    o cost terms in ecco/ modularized (new cost_generic.F)
2048    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2049    o new infrastructure for seaice model vs. obs misfits in seaice/
2050      * driver from the_main_loop.F is seaice_cost_driver.F
2051      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2052      * gradient check in Exp. 6a of natl_box_adjoint/
2053    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2054      (see README file)
2055    
2056    checkpoint57q_post
2057    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2058    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2059      - bug was reported by Jean-Michel and Ian Fenty
2060    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2061      update exp. cpl_aim+ocn output.
2062    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2063      Needed for high-res. runs with large global files
2064      to be able to limit tapelev size
2065    o Changed some tests for adjoint:
2066      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2067      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2068      * global_ocean.90x40x15/ back to default 3-level checkpointing
2069    o Modifications to enable scripted COMMON to MODULE conversion
2070      * verification/OpenAD/code/ has necessary scripts and description;
2071      * converts, compiles and runs successfully;
2072    
2073    checkpoint57p_post
2074    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2075    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2076      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2077    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2078    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2079      (was already the case for dissipation with mom_vecinv,
2080       and also the case for grad.PhiHyd when staggered-timeStep)
2081      This will allow to put dissipation out-off the AB time-stepping.
2082     Unfortunately, affects truncation error. Update output of exp. that "fails"
2083      (cg2d matching number) and leave the others for later: front_relax(10),
2084      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2085      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2086    
2087    checkpoint57o_post
2088    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2089      (2) its ready to be documented during the 20050801 DocFest
2090    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2091      for ideal_2D_oce and lab_sea on linux_ia32_g77
2092    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2093      in global1x1_tot/code_seaice_adj to access indices 32, 33
2094      (worth another tag)
2095    
2096    checkpoint57n_post
2097    o adding precip control xx_precip 32
2098    o adding swflux control xx_swflux 33
2099    o Replacing 10 forcing penalty cost routines by 1 generic.
2100    o Implementing partitioning in time-mean and variable adjustment
2101      for atmos. state.
2102    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2103    o in natl_box_adjoint:
2104      * updated exp 1 to 10
2105        (but does not have time-mean vs. variable split results yet)
2106    o updated global1x1/*_seaice_adj/
2107      to incorporate latest changes
2108    o enable useSingleCpuIO for mdsio vector routines
2109      (applies in particular to tapelev I/O)
2110    o removed inefficient K-loop in all active_file*control*.F
2111    
2112    checkpoint57m_post
2113    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2114      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2115    o pkg/exch2: filling of face-corner halo regions is optional
2116      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2117    
2118    checkpoint57l_post
2119     tag before updating tutorials (pre-release-2)
2120    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2121       for output and interpolation of input fields onto model grid)
2122    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2123       Affects results of exp. rotating_tank ; update output.txt.
2124    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2125          and taking the square quantity and/or using a fraction-weight field.
2126    o fix aim_diagnostics_init.F mate numbers.
2127    o add mnc output capability to diagnostics/diagstat and update
2128      our cvsignore files for the ACSII output generated
2129    
2130    checkpoint57k_post
2131    o lab_sea now uses diagnostics package and provides a suite of
2132      new EXF diagnostics output.
2133    
2134    checkpoint57j_post
2135    o exf
2136      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2137        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2138        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2139      * extended diagnostics output
2140        - now includes all EXF variables
2141        - hs, hl moved to common block
2142        - separate S/R for diagnostics, called after ctrl vector is added
2143        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2144        - EXFqnet contains true Qnet (i.e. includes qsw)
2145      * updated verif. lab_sea, global_with_exf
2146      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2147        to ensure that diagnostics sees a true EXFqnet
2148    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2149    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2150      several times with different frequencies.
2151    o mnc-ify the thsice package as requested by Daniel Enderton
2152      - the monitor--MNC output needs work
2153      - many attributes need to be added (most are currently blank)
2154    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2155      - many attributes need to be added (most are currently blank)
2156    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2157    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2158    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2159      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2160         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2161    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2162     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2163    
2164    checkpoint57i_post
2165    o Diagnostics package was changed: diagnostic allocation is now deactivated
2166      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2167    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2168      add 1rst Order upwind vertical Shear.
2169    o add a quick fix for A/B checkpointing in OFFLINE mode
2170    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2171      end-run around the C/Fortran linking horror in eesup/src/timers.F
2172    o added pkg/runclock: allows user to terminate run based on wall clock
2173    o added non-hydrostatic scaling parameter: nh_am2
2174    o pkg/my82: futile attempt to make results compiler-independent by adding
2175      some "_d 0", etc. no effect.
2176    o for mnc output, fill the 'T' coordinate var with myTime and create a
2177      separate 'iter' variable for iteration count
2178    o pkg/diagnostics:
2179      add new capability: output of Global/Regional & per-level statistics ;
2180      tested against monitor output (including land & thSIce) on various exp.
2181    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2182    
2183    checkpoint57h_done
2184      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2185      data.diagnostics, data.gchem, data.ptracers) is done.
2186    
2187    o pkg/diagnostics: prepare for Global/Regional statistics.
2188      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2189    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2190      and rename it: DIFFERENT_MULTIPLE
2191    
2192    checkpoint57h_post
2193    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2194    o pkg/diagnostics: change output frequency, now in seconds (instead
2195      of Nb of iterations). This requires to change data.diagnostics.
2196    checkpoint57h_pre
2197    
2198    o in mnc, let the user create the output dir if both mnc_outdir_date
2199      and mnc_outdir_num are false
2200    o add fflags() to pkg/diagnostics which allows one to specify, on a
2201      per-file basis, the file precision [default behavior is unchanged]
2202    o added diagnostics to pkg/kpp, including computation of mixed layer
2203      depth based on a temperature/density criterion
2204    o updated verification/natl_box to test the new pkg/kpp diagnostics
2205    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2206    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2207    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2208      not mnc -- this mistake was found by JMC and is now corrected
2209    
2210    checkpoint57g_post
2211    o add Adams-Bashforth 3rd Order time stepping:
2212      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2213      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2214    checkpoint57g_pre
2215    
2216    o make lambda[Theta,Salt]ClimRelax spatially varying
2217      (default remains spatially uniform constant based on tau)
2218    o added new control variables
2219      * init. uVel, vVel, etanN
2220      * lambda[Theta,Salt]ClimRelax
2221    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2222      (suggested by G. Forget)
2223    
2224    checkpoint57f_post
2225    o add parameter "baseTime" = model base time = time at iteration zero
2226      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2227      account for baseTime shift
2228    o move Coriolis arrays from PARAMS.h to GRID.h
2229    checkpoint57f_pre
2230    
2231    o mnc-ifying the seaice package
2232    o introduced an alternative length scale calculation for use in the limiting
2233      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2234    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2235    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2236      as well as grad(vort3).  Made it compatible with both approximate form
2237      for the cubed sphere and full form of these gradients.  Added flag
2238      useFullLeith to select between approximate and full form.  
2239    o add "d0" in getcon.F to reduce differences between compilers/platforms
2240      update output.txt of exp. fizhi-gridalt-hs
2241    o change port_rand funtion to allow to set the seed.
2242    o fix obscure MNC bug involving conversion between reals and integers
2243      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2244        new version is now more standards-compliant
2245    o adjoint-related modifications
2246      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2247      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2248      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2249    
2250    checkpoint57e_post
2251    o Adding eddy stress controls a la Ferreira et al.
2252    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2253    
2254    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2255      update output.txt of exp. fizhi-gridalt-hs
2256    o add more "Z" dimensions and associated coordinate vars to MNC
2257    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2258    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2259      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2260      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2261      months and years.  Requires pkg/cal.
2262    o diagnostics: add pickup functionality
2263      - off by default for backwards compatibility
2264      - current version only uses MDSIO -- MNC will be added
2265    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2266    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2267    
2268    checkpoint57d_post
2269    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2270    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2271      output from the diagnostics package
2272    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2273    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2274      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2275    o add coordinate variables to the MNC output from the diagnostics package
2276    o change MNC-flags default value: true when useMNC=TRUE
2277    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2278      the ability (off by default) to read the grid information using MNC
2279    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2280    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2281    o do snap-shot diagnostics at the middle of the time-interval (instead of
2282      at the end).
2283    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2284      new test for AIM with thSIce + slab-ocean
2285    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2286    o move state variable diagnostics to the beginning of the time step ;
2287      (note: still needs some work specially for snap-shot diagnostics)
2288      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2289    
2290    checkpoint57c_post
2291    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2292    o generate new output.txt files on faulks with g77 & the new -ieee option
2293    checkpoint57c_pre
2294    
2295    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2296      update output.txt of exp. global_ocean.90x40x15
2297    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2298      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2299    o add saltFlux(+File) forcing capability with periodicExternalForcing
2300    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2301    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2302    o improvements for the MNC output from DIAGNOSTICS:
2303      - correct handling of the unlimitied dimension
2304      - all dims now have associated coordinate variables
2305      - variables located at U, V, and Corner ("Z") points are now written
2306        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2307        *all* data points are output
2308    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2309    o added pkg/seaice/seaice_monitor.F
2310    o mdsio_readfield.F can now read files visible only to master MPI process.
2311    o pkg/seaice: some test code for ice-modified ocean stress
2312    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2313      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2314      spurious negative numbers for precipitation and humidity.  Will cause
2315      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2316    o pkg/ctrl/
2317      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2318        May be enabled via doPackDiag
2319      *  introduce z-scaling of
2320         + gradient (doZscalePack) and
2321         + control (doZscaleUnpack)
2322    o pkg/mdsio/
2323      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2324      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2325    
2326    checkpoint57b_post
2327    o simplify options in diagnostics_fill arguments (remove weird combinations)
2328    o fix MNC coordinate variables so that they now contain per-face index
2329      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2330      general, EXCH2 grids are only aligned to a "local" coordinate system
2331    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2332    o Implement instantaneous output within pkg diagnostics:
2333      setting a negative frequency in data.diagnostics produces
2334     "snap-shot" output (as opposed to time-average if freq > 0)
2335    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2336      NOTE: change ptracer diagnostics name: use 2 characters to work with
2337            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2338    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2339      becomes the coordinate variable for the 'T' dimension
2340    o add CF-style coordinate variables to MNC
2341      - just a first cut:  numbers are meaningless on the cubesphere and
2342        missing along the T axis but otherwise it works!
2343    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2344    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2345    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2346      this is based directly on what the model compute, so that the content of
2347      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2348    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2349    o clean up build options files for SunOS, in particular
2350      - remove -traditional from xmakedepend
2351      - change -xarch=v9 to -xarch=native for f77
2352      - restore use of make (not gmake)
2353      - add CC=gcc if using g77
2354    o changes per discussion of AM, JMC, & EH3 today:
2355      - move redundant "grid" variables out of "state" -- in preparation of
2356        creating proper CF-style coordinate variables and in recognition
2357        that any/all grid variables can be easily copied (eg. w/NCO) from
2358        the grid files into any of the other NetCDF files
2359      - *always* output grid variables with MDSIO (this will eventually be
2360        changed)
2361      - output MNC grid file if useMNC is true
2362    o every instance of _END_MASTER() has been found and replaced with
2363      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2364      preprocessors
2365    o re-arrange diagnostics pkg initialisation:
2366     - allow each package to extend the available diagnostics list
2367     - add some checking and fix small problems (multi-threaded, ...)
2368     - new S/R diagnostics_fill (replace fill_diagnostics):
2369       look through the short list of active diag. (instead of the long list)
2370       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2371    
2372    checkpoint57a_post
2373    o this set of changes restores TAMC compatibility
2374      tested for global_ocean.90x40x15 adjoint on trough
2375      (what a pain)
2376    
2377    checkpoint57a_pre
2378    o some modifs in tools/build_options for sunos
2379    o call ctrl_pack for ctrl at end for optimcycle=0
2380    
2381    checkpoint57
2382    o add horizontal bi-harmonic viscosity for vertical velocity
2383      - new parameter viscA4W (defaults to viscA4)
2384      - affects only non-hydrostatic code
2385      - to be done: no-slip lateral boundary conditions
2386    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2387    o implement Implicit Vertical advection for pTracers
2388    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2389      (implemented also for implicit vertical diffusion & advection)
2390    o OBCS: extend application of tracer open boundary conditions
2391      to a strip beyond the boundary of width Olx/Oly
2392    o add call monitor to TAF set of required calls (flow directives)
2393      and include in natl_box_adjoint
2394    o untangle a few ifdefs related to cost, ctrl, autodiff
2395      untangel a few ALLOW_ECCO_OPTIMIZATION
2396    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2397      (theta2, salt2 in ecco_cost_weights)
2398    
2399    checkpoint56c_post
2400    o OBCS as control variables
2401      - update ctrl_ad_diff.list, obcs_ad_diff.list
2402      - remove balance of obcs controls from default
2403      - fix index bug nobcs in ctrl_init
2404      - fix dummy fields filen in ctrl_pack
2405      - add dummy weights for obcs
2406    o lsopt: comment out fort.94 output
2407    o optim:
2408      - remove unnecessary header files
2409      - adjusted namelists
2410      - add xerbla.F to Makefile
2411    o exf:
2412      - multiple modifications of exf_check_range
2413      - unit change in exf_init_runoff from [m/year] to [m/s]
2414    o mdsio:
2415      - i/o-vector change debugLevel from debLevA to debLevB
2416    
2417    checkpoint56b_post
2418    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2419      is called from DO_THE_MODEL_IO
2420      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2421      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2422      - clean up PTRACERS_WRITE_TIMEAVE a little
2423    o add another verification experiment that tests both the cfc-pkg and
2424      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2425      reactive tendencies treated inline with regular timestepping
2426    o testreport previously did a lousy job of comparing small numbers, so
2427      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2428      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2429      testreport.
2430    o ptracers_monitor: bug fix for MPI
2431    
2432    checkpoint56a_post
2433    o GCHEM: finish reorganizating the package
2434      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2435        (introduces another 3D-array for each passive tracer, but only if
2436        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2437        gchemTendency is not needed because the timestep is done separately)
2438      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2439      - GCHEM is now---more or less cleanly---separate from PTRACERS
2440      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2441        so clear to me how that should be done in a general way.
2442    o CFC: improve formatting of output in CFC_ATMOS
2443    o PTRACERS:
2444      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2445        that ALL experiments with ptracers enable can be checked. This makes
2446        GCHEM_MONITOR obsolete.
2447      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2448        monitorFreq
2449      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2450    o add PTRACERS (PTR0[1-5]) to testreport output
2451    o exf_check_range:
2452      * default changed to .TRUE.
2453      * will check values for niter0 if debLevA, every timestep if debLevB
2454      * STOP in exf_check_range if 'out of range'
2455      * range chosen generous to allow for potential extema
2456      TBD: a version with stricter range
2457           permitted range would be runtime parameters
2458    o GMredi:
2459      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2460      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2461      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2462    o GCHEM:
2463      - move call to GCHEM_FORCING_SEP, so that it is now called before
2464        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2465      - introduced a useGCHEM runtime flag and applied it everywhere.
2466      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2467        this flag is now only visible within GCHEM-pkg routines.
2468      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2469        be replaced by a 3D array that is computed before thermodynamics; for
2470        this, the tracer ID iTracer had to be included into the parameter list
2471        of ptracers_forcing
2472      - set up forward_step to call gchem_forcing, that will replace
2473        gchem_forcing_int in ptracers_forcing
2474      - cleaning up
2475    o small cleaning of exch2: remove files that are also in eesupp/src
2476    
2477    checkpoint56
2478    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2479    o mnc: cleanup "full" files--fixes out-of-memory problem
2480    o ECCO-GODAE
2481      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2482      * fully merged and updated from SIO code
2483        windstress sign change affects
2484        - exf_inscal_[u/v]stress
2485        - sign of xx_tau[u/v] adjustments
2486        - signs in cost_scat
2487      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2488      * natl_box_adjoint updated and compressed
2489      * 2-level checkpoint switch added
2490        (tested in EXP. 1 of natl_box_adjoint)
2491      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2492    o SVD
2493      * first complete, non-hacked version for SVD calculations
2494      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2495        performed via direct access files admtlm_vector.it????
2496        (via ctrl_[un]pack)
2497      * optimcycle is used for ARPACK iteration counter
2498        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2499      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2500        and add linear transforms where necessary
2501      * controls are initial/final SST, SSS (can be extended; need to check
2502        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2503    o mdsio: filename info to both stderr, stdout
2504    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2505      from sign change
2506    
2507    checkpoint55j_post
2508    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2509      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2510    o add consistent build directories and .cvsignore files to verification
2511    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2512    o make all subroutines 30 or less characters in length for certain older
2513      compilers to work (a thorough search only turns up two routines in
2514      pkg/ptracers)
2515    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2516      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2517    
2518    checkpoint55i_post
2519    o change arrays for total vertical diffusivity (2.D if explicit,
2520      3.D if implicit) ; each ptracer uses its own background value.
2521    o added mnc/NetCDF output capability to ocn_compon_interf
2522      - added bits to verification/cpl_aim+ocn so that it can run on
2523        ITRDA and other clusters without the mpirun "-wd" option
2524    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2525      configuration
2526    o give MNC the ability to create additional files rather than
2527      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2528      - the default is just less than 2GB which is a practical limit
2529        on many systems
2530    o Compute the non-local term using either KPP vertical diffusivity (=default)
2531       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2532    
2533    checkpoint55h_post
2534    o add verification test "vermix"
2535    o remove all the *_ioinc flags and replace with the single global
2536      outputTypesInclusive flag
2537    o allow to set a vertical profile of vertical diffusivity for T & S
2538    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2539    o useMNC moved from data.mnc to data.pkg
2540    
2541    checkpoint55g_post
2542    o Renaming carbon AD experiments to comply with testreport conventions
2543    o Updating adjoint of Held-Suarez hs94.1x64x5
2544    o Fixing directives for non-ECCO forward_step, after ECCO directives
2545      have been fixed to avoid recomp. of do_oceanic_phys
2546      Works well for global_ocean.90x40x15,
2547      but recomp. issue remains for carbon
2548    o Updating adjoint output for natl_box_adjoint after
2549      pkg/ecco has been modified (see taga c55d_post)
2550    
2551    checkpoint55f_post
2552    o rename to timeave_init_fixed
2553    
2554    checkpoint55e_post
2555    o some delicate re-shuffle of store directives to avoid one
2556      extra call of do_oceanic_physics
2557      affects ecco_the_main_loop.F, do_oceanic_physics.F
2558      checkpoint_lev1_directives.h
2559    o NB: this may break global_ocean adjoint temporarily,
2560      but it is clear how to fix it. Will do later, need this now.
2561    
2562    checkpoint55d_post
2563    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2564    o ecco_cost_weights is modified to 1x1 runs
2565    o modifs to allow observations to be read in as
2566      single file or yearly files
2567    o enable to read exf forcing fields as either
2568      single file or yearly files (flag useExfYearlyFields)
2569    checkpoint55d_pre
2570    
2571    o switch between 2-level and 3-level checkpointing
2572    o add ability of MNC to write local and "partial" (eg. 2D slices where
2573      the full 3D field is never actually stored) arrays to NetCDF files
2574      with the correct (that is, the complete multi-dimensional) set of
2575      array indicies
2576      - used in mom_vecinv() to write the diagFreq output
2577      - tested (demonstrated) in verification/aim.5l_cs
2578    o further mnc-ification
2579      - add verification/lab_sea to the list with mnc setups
2580      - fix undefined mnc v-names in cd_code
2581      - add kpp to mnc output (both snapshot and timeave)
2582    o non-hydrostatic code
2583      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2584        in calc_gw.F
2585      - defaults to viscAh
2586      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2587        friction or Leith) in non-hydrostatic mode, as long as there is
2588        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2589    o pkg/cost
2590      extend simple cost functions to treat time mean quantities
2591      (T,U,V) via cost_accumulate_state from cost_tile
2592    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2593        be 2 times larger than the minimum size the advection scheme requires.
2594        now get a perfect conservation of salt in advect_cs test-exp (updated)
2595    o GGL90 (Gaspar's TKE mixed layer)
2596      - add horizontal diffusion of TKE, requires exchanges in
2597        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2598        default. In OPA there is no horizontal diffusion of TKE but the
2599        mixing coefficients are computed from a horizontal average of TKE of
2600        6 points or so. I think that diffusion has a little more physical
2601        justification.
2602      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2603        was in vain)
2604      - mask tke-variable in ggl90_init
2605    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2606    o fix biharmonic diffusion on CS-grid.
2607    o more obcs stuff
2608      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2609        for reading boundary values. This routine is called from
2610        obcs_prescribe_read
2611      - updated obcs_check
2612      - changed sponge layer relaxation parameter units for days to seconds
2613      - turned off sponge layer by default
2614      - changed argument list of OBCS_CALC to myTime+deltaTclock
2615      - fixed about 35 bugs in obcs_external_fields_load
2616    
2617    checkpoint55c_post
2618    o obcs stuff
2619      - new runtime flags useOBCSprescribe, useOBCSbalance
2620      - re-arranged obcs_calc
2621      - moved exf_getobcs to obcs_prescibe_read
2622        obcs_prescibe_read is called after ORLANSKI stuff
2623        and independent of it (executable can contain all).
2624      - updated obcs_check
2625      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2626        These may be necessary only if tangential velocities are
2627        prescribed at OB, not sure, needs testing.
2628    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2629      which simplifies the calls and passes the ifc check-bounds test
2630    
2631    checkpoint55b_post
2632    o add a 2D scalar, Z location, exchange_2 routine.
2633    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2634      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2635      affects advect_cs results (for the wrong reason): update output.txt
2636    o use a more standard discretization for biharmonic viscosity ;
2637     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2638      affects results of dome set-up: update output.txt
2639    o fix gad_advection.F (CubedSphere part), back to version 1.23
2640    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2641    
2642    checkpoint55a_post
2643    o merged code to
2644      * prescribe/read time-dependent open boundaries
2645        (works in conjunction with exf, cal)
2646      * sponge layer code for open boundaries
2647      * each boundary N/S/E/W now has its own CPP option
2648        (healthy for the adjoint)
2649    
2650    checkpoint55
2651    o up-to-date adjoint of previous breaks
2652      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2653      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2654      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2655      - carbon: * remove tr1-related adjoint verification
2656                * add ptracer as control variable
2657    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2658      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2659    
2660    checkpoint54f_post
2661    o in verification/carbin/ remove experiment related to
2662      ALLOW_PASSIVE_TRACER (array tr1 etc)
2663      code_ad/ input_ad/ results_ad
2664    
2665    o add two new packages
2666      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2667        + subject to optimization (memory)
2668      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2669        + subject to reordering (many GOTOs in the original code)
2670        + so far opps is called for every (i,j) point, and then operates in
2671          the vertical; one may want to reorder the scheme in order operate in
2672          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2673          fields)
2674    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2675      - all verification tests compile and run with linux_ia32_g77
2676      - defaults are compatible with current input files--nothing
2677        should change if you were not previously using MNC
2678      - MNC output has been added in numerous places (eg. timeave)
2679        but there are still a few writes not yet do-able with MNC
2680        (this is in progress)
2681      - flags now allow for either/or/both use of MDSIO and MNC and
2682        documentation will soon follow
2683      - numerous small formatting cleanups for ProTeX
2684    o add version info (via BUILD_INFO.h) to MNC and stdout
2685    
2686    checkpoint54e_post
2687    o add two new packages
2688      - pp81 (Packanowski and Philander, 1981), Richardson number and
2689        stratification dependent mixing
2690      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2691      - these scheme operate in a similar manner as KPP (without ghat, of
2692        course), however there is only one diffusivity that is used for both
2693        temperature and salinity (and passive tracers)
2694    o add offline package
2695    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2696      provided by Stephanie Dutkiewicz
2697    o genmake2: add ability to search for C compilers and cleanup test output
2698      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2699    
2700    checkpoint54d_post
2701    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2702    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2703      leading to additional shift by 5 days each year of integration
2704       (i.e. leading to considerable offset over the years)
2705    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2706    o start with no AB and no initial filtering (staggerTimeStep):
2707      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2708    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2709      (external loading & cpl import/export stay in forward_step.F)
2710    o update coupling interface to work with new staggerTimeStep
2711    o change MDSIO ptracers_pickup.
2712    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2713    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2714    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2715    
2716    checkpoint54c_post
2717    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2718      this affects (truncation error) output.txt of test-exp:
2719       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2720    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2721    o change Qnet to always be the net heat flux, (+upward).
2722      affects (truncation error) output of natl_box exp.: updated
2723    o define the max number of passive tracers in PTRACERS_SIZE.h
2724    o start to test mnc routinely in exp0
2725    o add sea-ice loading (sIceLoad) as a new forcing field.
2726    
2727    checkpoint54b_post
2728    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2729       impressive on Altix and Opteron systems)
2730    o diagnostics can now write NetCDF files through the mnc package
2731    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2732    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2733    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2734      affects (truncation error) output of lab_sea & natl_box exp.: updated
2735    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2736    
2737  checkpoint54a_post  checkpoint54a_post
2738  o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).  o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2739  o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)  o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)

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