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revision 1.403 by heimbach, Sat Dec 4 23:26:49 2004 UTC revision 1.1144 by jmc, Wed Jul 22 20:23:29 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    checkpoint61t
8    o pkg/seaice:
9     - remove unused variables in seaice_evp
10     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
11    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
12       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
13       each processor opens a different file (a fix from Matt).
14    o cg2d:
15       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
16       this reduces number of EXCH calls by 2 when using exch2.
17       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
18       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
19    o pkg/thsice:
20       add code for Near Infra-Red albedo (from Jeff)
21       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
22    o ini_model_io:
23       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
24       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
25       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
26    
27    checkpoint61s
28    o pkg/exch2 (exch2_rxN_cube*):
29       remove last BARRIER (no need to synchronise after getting data from shared
30       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
31    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
32      and generate new output (for the 2 tests) using default rotationPeriod.
33    o pkg/exch2:
34      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
35        (was already the case with AUTODIFF_EXCH2 defined)
36      - add bj in exch2 arrays and S/R.
37      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
38        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
39    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
40      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
41        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
42      - verification experiment natl_box.longstep
43    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
44      allow different versions of ifort (8 or 9) and different versions
45       of mpi (mpich or mpich2) to be used with the same optfile.
46      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
47       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
48    o pkg/seaice:
49      fix previous modif (3-level field removed) for old-pickup reading
50    
51    checkpoint61r
52    o pkg/seaice:
53     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
54      1. introduce fields for time step (N-1)
55      2. do not use levels 2 and 3 anymore (but keep them)
56      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
57         includes changes to pkg/thsice/thsice_get_velocity.F,
58         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
59         pkg/obcs/obcs_apply_uvice.F.
60     - completely remove code for leap-frog time stepping for second order
61       advection
62     - adjusted adjoint accordingly;
63       gradient checks have improved by an order of magnitude!
64    
65    checkpoint61q
66    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
67     - the boundary conditions along open boundaries are unclear, because the
68       associated masks are set to zero and are thus treated as closed when
69       applying the slip-boundary conditions.
70     - move initialisation of grid variables from seaice_init_varia to _fixed
71    o adding doc/diags_changes.txt
72    o model/src:
73      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
74       to avoid "_diags" naming if no relation to pkg/diagnostics.
75      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
76       file and only call PLOT_FIELD_XYZ if debugMode=T.
77      remove few PLOT_FIELD_XY calls outside initialisation.
78      remove few unnecessary BARRIER.
79    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
80      of salt_plume package in Southern Ocean
81    o pkg/thsice:
82     - fix hOceMxL in overlap (needed for sea-ice advection);
83       update output of experiment global_ocean.cs32x15.icedyn.
84    o pkg/seaice:
85     - make the (placeholder-)tracer IceAge a little more meaningful
86      by avoiding ridging of age due to convergent ice flow
87     - add diagnostics for surface temperature, atmospheric and oceanic
88       heat flux, and atmospheric and oceanic ice growth
89    
90    checkpoint61p
91    o eesupp (global_max & global_sum):
92     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
93     - remove starting & endding barrier (no longer needed)
94    o pkg/mdsio, writelocal:
95       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
96       (remove the STOP): uses shared buffer IO to store data from all threads
97       and then let master-thread write nThreads tiles.
98    o pkg/mdsio (read/write field):
99     - tiled IO done in 1 piece (all levels at a time);
100     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
101     - multi-threaded: allow to read/write local (non-shared) array
102       (was already working with singleCpuIO ; now works also without);
103       => no longer needs barrier call after reading a file (added inside
104       mds_read/write field).
105     - move barrier calls outside gather/scatter_2d to mds_read/write_field
106    o pkg/obcs/exf
107      - exf_getffieldrec.F: add a few ". _d 0" and
108                            add code to catch the case fldperiod = 0.  
109      - obcs_precribe_read.F: change if statements so that they match
110                              the variable type (_RL)
111      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
112        exf_iprec) as part of namelist EXF_NML_01
113    o pkg/mdsio:
114      - read/write tiled (local) files: read/write 1-level tile chunk at a time
115        (instead of segment of length sNx); expected to speed up tiled IO.
116    o pkg/exch2:
117      - take buffer copy from/to array out of S/R exch2_send/recv into new
118        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
119        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
120      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
121      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
122        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
123        including Topology header file (and common blocks).
124      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
125        remove 2nd exch call in exch2_s3d_rx (no longer needed).
126      - document S/R arg. list (+ update some comments)
127    o pkg/seaice:
128      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
129        temperature and humidity over sea ice based on climatological values.
130      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
131        of LSR (this change is expected to change the results slightly because now
132        it uses slightly difference moduli from the second last LSR solution, but
133        that is more consistent with the stress computations; this part of the code
134        is not tested in the verification experiments)
135      - fix diagnostics for flux of ice in case of B-grid
136      - turn strain rates eij and press into global fields within global
137        common block in SEAICE.h for more straighforward diagnostics
138      - fix diagnostics for principal stress components, press, zeta, eta
139        to give something meaning full
140    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
141      new output (all 4 tests) using default rotationPeriod.
142    o pkg KPP:
143      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
144      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
145        and normal grid from 1 to Nr)
146    o Fix computations of L4rdt in mom_calc_visc.F
147    o eesupp:
148      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
149      should be called before a "stop" if we know that all process are going
150      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
151    
152    checkpoint61o
153    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
154    o model/src/ini_curvilinear_grid.F:
155       compute angleSin/CosC when they are not read from a file
156    o pkg/seaice:
157       add pseudo time stepping for LSOR
158    o pkg/exch2:
159       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
160    o pkg/seaice:
161       Adding separate sea ice albedo, drag coefficients, and HO in Southern
162       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
163    o SingleCpuIO:
164       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
165    o pkg/seaice:
166       put exchanged variable in (local) common block for MPI+Multi-Threads
167       to work (necessary with exch1, and for now with exch2 too).
168    o verification: to get more experiments tested with mpi, mth and mpi+mth,
169      change tiling of:
170       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
171       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
172      update output of exp:
173       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
174       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
175      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
176                       (note: output.txt generated on faulks using only 1 tile)
177    o eesupp & mdsio (SingleCpuIO):
178     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
179       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
180       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
181     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
182     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
183       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
184    o pkg/exch2:
185     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
186       read parameter file "data.exch2" if it exists; otherwise try default regular
187       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
188     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
189       with new code (not to be used, just as a backup solution).
190     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
191       in utils/exch2/input.
192    
193    checkpoint61n
194    o eesupp & mdsio (SingleCpuIO):
195      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
196        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
197        receive real*4 array (instead of real*8) to read/write 32.bit files.
198        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
199         and remove new mapping S/R)
200    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
201      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
202        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
203        when using exch2. Add S/R to map global io-buffer to global model array.
204      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
205    
206    checkpoint61m
207    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
208      and add 3 other S/R for other types (R4,R8,RS).
209      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
210    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
211     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
212     - reduce number of macro definitions (keep only those which are used);
213       can always call directly the corrresponding S/R if needed.
214     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
215       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
216     Fixed wrong type of arg in:
217       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
218       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
219     To fix: global_sum of var in common block is wrong (multi-threaded) in:
220       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
221     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
222    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
223      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
224    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
225    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
226      edges are closed (zero depth); might happen with "blank tiles";
227      for now, disabled if using OBCS.
228    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
229      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
230    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
231      to reduce length of 1.D array print in STDOUT.
232    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
233      + use 48 tiles (16x8): this will allow to test "blank tiles".
234    o start to test MPI + multi-threaded (change testreport to skip tests
235      where number of tiles do not match).
236    o genmake2: add option "-omp" to turn on Open-MP ;
237      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
238    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
239      and keep the original tile numbering. Note: compatible with old
240      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
241    
242    checkpoint61l
243    o Overlaps had been forgotten in calculating ijk keys : fixed
244    o fix cyrus makedepend for gcc 4.4
245    o experiment fizhi-cs-aqualev20:
246      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
247      and generate new output. Note: new output is much closer to the old
248      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
249      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
250    o pkg/fizhi:
251     - change to avoid indices going deliberately over array-bounds
252     - remove unnecessary MPI stuff
253     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
254     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
255       does not go over array-bounds and therefore returns reliable output.
256     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
257       this S/R has 4 output arguments, which are used inside "get_alarm";
258       when it is called with the same variable "ndum" in place of several
259       output arguments, this produces weird side effect inside "get_alarm"
260      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
261       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
262       address) and produces error.
263    o tools/gemake2: (March 27-29 2009)
264      with option "-mpi": link *_mpi files from "MODS" dir (this is what
265      testreport does).
266    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
267    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
268       update lab_sea.lsr & lab_sea.salt_plume results
269    o pkg/seaice:
270      Major overhaul of the LSOR solver: change discretization from original
271      finite differences to finite volume. The old routine is still in the
272      file seaice_lsr.F and can be turned on with the CPP-flag
273      SEAICE_OLD_AND_BAD_DISCRETIZATION
274      Along with this change, the discretization of the strain rates is changed.
275      The same flag turns on the old discretization in seaice_calc_strainrates.F
276      All verification experiments with seaice are affected (except for
277      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
278      results by setting the above flag.
279      Further changes involve changes in defaults:
280      - ALLOW_FLOODING is defined and turned on by default
281      - SEAICEadvSnow = .true. is now the default
282      - SEAICEadvSalt = .true. is now the default
283      - SEAICEadvAge  = .true. is now the default
284      - SEAICE_clipVelocities  = .false. is now the default
285                                         (as per J. Zhang's recommendation)
286      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
287        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
288      - seaice_growth: replace computation of UG by a simple copy from wspeed
289    
290    checkpoint61k
291    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
292      seaice_lsr: fixed a few metric terms,
293                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
294                  add more debugging diagnostics
295      seaice_evp: removed superfluous many metric terms of FV discretization
296                  of stress divergence
297                  affects lab_sea, lab_sea.hb87
298      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
299                  of stress divergence for non-evp solver
300                  (this part is not tested anywhere)
301      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
302                  they were effectively only half slip
303                  affects lab_sea.hb87
304      updated all relevant verification experiments (except lab_sea//output_adm.txt
305        which was left over, but fails at level 7 & 6)
306    
307    checkpoint61j
308    o pkg/seaice: turn a few hard wired parameters into run time parameters
309    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
310      time in seconds as promised by the usints in seaice_monitor and exf_monitor
311    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
312      that are not cubed-sphere grids
313    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
314    o pkg/ctrl:
315      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
316    o non-hydrostatic (calc_gw.F):
317      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
318      update output of exp. global_ocean.cs32x15.viscA4
319    o remove backward compatibility for thetaMin,phiMin
320      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
321    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
322      interpolated wind field not only for curvilineargrid=.true., but also
323      for a rotated grid (rotateGrid=.true.)
324    o pkg/exf: add capability to bypass interpolation for runoff
325      by setting yet another CPP-flag
326    o eesupp/src, B-grid exchange:
327      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
328    o autodiff
329      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
330      allows to switch to single-prec common blocks;
331      corresponding switch occurs in tamc.h, integer isbyte
332      TAF store directivs "byte" and "kind" seem equivalent;
333      Most tamc.h have been updated correspondingly.
334    
335    checkpoint61i
336    o autodiff:
337      fix autodiff_sore/_restore indices for obcs
338      (spotted by I. Hoteit, M. Mazloff)
339    o pkg/autodiff, pkg/ctrl:
340      Add flag to reduce all tapelev I/O to single-prec.
341      In data.ctrl set
342        doSinglePrecTapelev = .TRUE.
343    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
344      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
345    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
346      real fresh water flux (not yet)
347    o pkg/mdsio & rw:
348     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
349     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
350    o pkg/flt:
351     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
352       init_fixed & ini_varia.
353     - clean-up & simplify linear interpolation S/R:
354       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
355     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
356     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
357     - add vert. coordinate & horiz. indices to output files.
358     - change vertical position in initial condition, from index to depth [m].
359     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
360       (easier to get to a curvilinear grid) ; delX,delY no longer used.
361    o pkg/ggl90: a few modifications:
362     - fix bottom boundary condition, and interpolation of KappaE
363       near top and bottom
364     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
365     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
366     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
367    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
368      (maintain temporary backward compatibility, until next checkpoint)
369    
370    checkpoint61h
371    o pkg/diagnostics with "periodic averaging diagnostics":
372      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
373    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
374    o pkg/obcs: fix loop ranges for balancing code
375    o pkg/flt:
376     - improve criteria for finding which tile owns a float.
377     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
378    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
379      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
380      with ocean biogeo)
381    o pkg/flt:
382     - do some cleaning and fix the restart ;
383     - add output.txt in flt_example/results to get this pkg tested.
384    o genmake2: add an EXTENDED_SRC option and flag.
385       for now, cannot be turned on on command line (only through genmake_local)
386    o pkg/mdsio: read/write vector:
387     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
388     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
389       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
390     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
391      (drop to 4 digits matching for grad). But this test does not look very
392      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
393    
394    checkpoint61g
395    o pkg/flt:
396      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
397       + make OPTIONS file more standard.
398      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
399      - fix _BYTESWAPIO CPP-Flag
400      - standard reading of file-parameter "data.flt"
401      - fix argument list of S/R FLT_RESTART
402      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
403    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
404    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
405      a still unfixed compiler/optimization bug
406    
407    checkpoint61f
408    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
409      update results of global_ocean.cs32x15.icedyn test.
410    o move getcon.F from model/src to pkg/fizhi.
411    o pkg/exf: add parameter for extrapolation of temp up to the surface
412       and option to prevent negative evap (in bulk_largeyeager04 only).
413    o Prather Advection scheme: fix tracer conservation for divergent flow
414      (e.g., when using NonLin Free-Surface).
415    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
416    o gmredi (Visbeck-variable-K):
417     - add more parameters to Visbeck-variable-K.
418     - use a 5 points average for dSigmaR in Visbeck-K calculation
419       (more "homogenous": same stencil and same weights as in dSigmaH)
420     - update output of ideal_2D_oce experiment.
421    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
422      (#undef REAL4_IS_SLOW)
423     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
424       coordinate variable
425     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
426       (surface forcing fields), removes some of the functionality
427     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
428     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
429       probably not all: copy _RS surface flux fields to RL field before
430       calling DIAGNOSTICS_FILL
431     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
432       real*4 (CALL EXCH_*_RS) versions.
433     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
434       (generate new output).
435    
436    checkpoint61e
437    o gmredi (Visbeck-variable-K):
438      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
439      - change computation of Visbeck-K where Slope > Smax :        
440        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
441        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
442    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
443      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
444    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
445    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
446      does not become too large (to avoid precision problems in implicit-diffusion
447      solver); update ideal_2D_oce output.
448    o pkg ggl90:
449      - in ggl90_cal.F: compute only one set of visc/diff, used to
450        step forward TKE/T/S/momentum
451      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
452        have Prandlt =1)
453    o gmredi (fm07):
454      - add lower limit on Transition layer thickness + lower limit on 1/lambda
455      - allow to set few more params from data.gmredi
456    o pkg ggl90:
457          - add missing sqrt(2) factor in computation of mixing length
458            scale in ggl90_calc.F
459            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
460    
461    checkpoint61d
462    o adjoint modifs
463      - adapt to new field rhoInSitu
464      - allow to revert from StoreDynVars2D, StoreDynVars3D
465        to individual fields
466        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
467    o store 3-D (in-situ) density in commom block (DYNVARS.h)
468     - save 1 rho computation.
469     - no longer modify T & S inland when using down_slope pkg.
470    o gad_som : allow to switch to SOM advection for T & S without corresponding
471      pickup files (using new S/R: MDS_CHECK4FILE).
472    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
473      (for useSingleCpuIO to work in multi-threaded)
474    o pkg/shelfice:
475     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
476       with SHELFICEtopoFile in data.shelfice
477     - move code for reading ice shelf topography and modifying hFacC into separate
478       subroutines of the shelfice package
479     - separate initialisation of "fixed" and "variable" variables
480     - kTopC is not (yet) replaced by kSurfC, although this is possible
481    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
482    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
483      and rename:
484      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
485      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
486    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
487    
488    checkpoint61c
489    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
490      to add mass source/sink of fluid in the interior (3-D generalisation
491      of oceanic real-fresh water flux).
492    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
493    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
494    o new pkg: down_slope
495      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
496      - presently, modify T & S inland (dwnslp_calc_rho.F).
497        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
498      - implementation for ocean in P-coords not tested.
499      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
500    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
501      (to facilitate conversion of oceanic pkg to p-coordinate).
502    o change FIND_RHO to FIND_RHO_2D :
503      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
504    o new pkg: cheapaml
505    
506    checkpoint61b
507    o exch2:
508      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
509      - no longer depend on the order sequence (N,S,E,W).
510      - 3rd exchange no longer needed (tested with 24 tiles).
511      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
512      - exch_UV_A-grid readily available (but not yet tested).
513      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
514      (both are no longer needed) in exch_uv: no effect in forward run; but
515       get truncation error differences with adjoint exch.
516    o exch2:
517     - change index-bounds storage (moved from target to local tile,
518       more intuitive this way) ; rename/remove some variables.
519     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
520    
521    checkpoint61a
522    o exch2/matlab-topology-generator:
523      fix bug in index bounds for N-S internal exchange (hard to tell if this
524      had any effect on the solution).
525    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
526      is exceeded
527    o testreport: modify syntax of awk, so that it works also with
528      awk, and not only with nawk and gawk
529    
530    checkpoint61
531    o autodiff
532      Change default for TAF usage by removing argument '-nonew_arg'
533      This changes TAF subroutine argument list (ordering of active var.)
534      Omission of this flag leads to incompatibility w.r.t. TAMC
535      To restore TAMC-compatibility, need following modifs:
536      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
537      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
538      Tested TAF version is 1.9.22
539      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
540    
541    checkpoint60
542    --->>> This is the last checkpoint for which generating the adjoint
543    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
544    --->>> by default.
545    --->>> Future checkpoints will ommit this flag by default.
546    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
547    o pkg/grdchk: Add gradient check to etan0 perturbations.
548    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
549    o pkg/autodiff: more flexibility in zeroadj.
550      model/src: modifying do_oceanic_phys.F accordingly.
551    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
552    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
553      special setup of gmredi for which the adjoint is stable
554      enough for parameter optimization.
555    o bridging the gap between eddy stress and GM.
556      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
557          along with a change in CPP option (now ALLOW_EDDYPSI).
558      -> when using GM w/ GM_AdvForm:
559          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
560          is applied either in the tracer Eq. or in momentum Eq.
561          depending on data.gmredi (intro. GM_InMomAsStress).
562      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
563      The key modifications are in model/src/taueddy_external_forcing.F
564      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
565    
566    checkpoint59r
567    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
568      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
569      fix option to read coriolis(@ cell-corner) from files with CS-grid.
570    o pkg/mnc: add some attributes to standard 1D-coordinate variables
571    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
572      mass points, when using mnc for output
573      - add runtime parameter (missing_value, missing_value_int) to override
574        default (which is the value of getcon('UNDEF'))
575    o pkg/mnc: prepare mnc for the actual use of missing values with the
576      diagnostics package: small fix in mnc_cw_readwrite.template and more
577      initialisation of never used fields
578      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
579      versions
580    o pkg/thsice/thsice_ini_vars.F added default initial values so that
581      thermodynamics sea ice solver does not blow up when some initial fields
582      are missing.
583    o move from external_forcing_surf.F to ini_forcing.F
584      the p-coord. hack consisting in using pLoad to set phi0surf ;
585      update output of tutorial_global_oce_in_p (affected @ truncation level).
586    o Freshen up a bit hs94.1x64x5, notably:
587      remove rotationPeriod and tRef=5*0. (adjoint only), and add
588      exactConserv=.TRUE.
589    o pkg/generic_advdiff:
590      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
591      applies to files where Temperature & Salinity 2nd Order moments are used.
592    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
593      this uses a dynamically allocated internal state data structure
594      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
595      and requires a fortran 90 compiler
596    
597    checkpoint59q
598    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
599       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
600    o Refresh tutorial_global_oce_biogeo, notably:
601      - change bathymetry (put back seamounts in ACC, use hFacs)
602      - change EOS (POLY3 --> JMD95Z)
603      - use Bryan-Lewis vertical diffusivity
604      - use multidimensional advection
605      - remove old virtual virtual in dic pkg, now done through ptracer pkg
606      - change a couple of parameters in dic pkg
607    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
608    o pkg/obcs: change default to OBCSfixTopo = .true.,
609      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
610      - replace "debugMode" with "debugLevel .GE. debLevB"
611    o implementation of TAF directives for gchem,cfc,dic
612    o remove "exp5" (replaced by tutorial_deep_convection).
613    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
614      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
615      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
616      --> changes results in exp4, seaice_obcs
617    o tutorial_deep_convection :
618      update the set-up and increase resolution and domain size ; start
619      from pseudo initial conditions = output at t=120mn in order to see
620      something happening when running testreport.
621    o pkg/seaice: add os7mp as an advection scheme
622                  add check for advection schemes
623                  add a flag for restoring T and S underneath sea ice
624    o pkg/my82: add netcdf-support and diagnostics
625    o thsice pkg:
626      - Now hsMax limits snow height by turning it into ice following
627        flooding scheme (and now conserving energy)
628      - Slight rewriting of the formula in thsice_calc_thick.F
629      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
630      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
631    
632    checkpoint59p
633    o gchem / dic / cfc :
634      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
635      - add new parameter files: "data.dic" & "data.cfc" ;
636      - various re-arrangement in initialisation & header file ;
637      - fix tutorial_global_oce_biogeo for multi-threaded test.
638    o pkg/dic: test for "pickup_dic" file when restarting ;
639      if no pickup-file, can restart with a re-initialised pH (same as it did
640      before) providing pickupStrictlyMatch is set to False.
641    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
642      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
643    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
644      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
645    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
646     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
647       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
648    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
649       scheme to use for vorticty-term ;
650     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
651       (with default selectVortScheme, return to original discretisation)
652     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
653    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
654    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
655      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
656      also fix diagnostics VISCAHW & VISCA4W.
657    
658    checkpoint59o
659    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
660    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
661      move a few statemens out the main loop into separate loops
662    o pkg/shelfice:
663      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
664        (kg/m^2/s), does not break tests, because in verification/isomip,
665        rhoConstFresh=rhoConst (by accident)
666      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
667      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
668        new file model/src/seawater.F, so that they are available for all pkgs.
669      - convert potential temperature into in-situ temperature. This changes the
670        isomip tests => update tests
671    o add a flag writePickupAtEnd (default=true) to be able to suppress
672      writing a pickup at the last timestep
673    o tools/mpack-1.6 :
674      - disable automake (not working) and autoconf (not needed).
675      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
676        also cleaner with much less compilation warnings.
677    o pkg/profiles:
678      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
679      (for "less than 32 characters name" compiler requirement)
680    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
681      conditions that have a different sampling frequency than S/T/U/V obcs
682    o pkg/diagnostics (stats-diags):
683      - fix global Min/Max in case 1 processor get only empty tiles
684    o genmake2: replace (4 times)
685         make genmake_tc_1.o >> genmake_warnings 2>&1
686      with
687         COMM="$CC $CFLAGS -c genmake_tc_1.c"
688         echo $COMM >> genmake_warnings
689         $COMM >> genmake_warnings 2>&1
690      to make genmake2 always see the value of CC as specified in the optfile.
691    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
692      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
693      - modify verification advect_cs test to test SOM-advection on CS-grid.
694    o pkg/ctrl:
695      - Rewrite of ctrl_map_ini_ecco.F,
696        introducing a generic routine (ctrl_map_ini_gen.F).
697      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
698    
699    checkpoint59n
700    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
701      number in dedicate array "hdiag":
702      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
703        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
704      - many small changes (integer format) for large number of diagnostics
705      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
706        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
707    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
708      usingSphericalGrid, this allows to define the rotated grid coordinates
709      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
710      geographical coordinates according to the inverse of the rotation defined
711      by the Euler angles, so that Coriolis parameter and online-interpolation by
712      exf works with the geographical coordinates on XC/YC/XG/YG.
713      Naturally, this feature does not work with all packages, so some
714      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
715      profiles), because there the coordinates are assumed to be regular
716      spherical grid coordinates.
717    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
718      - introduce isopycnal diffusion coefficient control.
719    o tools/adjoint_options:
720      - additional control vector components.
721    o pkg/mnc: have mnc create marginally meaning full coordinate variables
722      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
723    o pkg/mypackage:
724      - add example of read/write pickup for state-var ;
725      - add entry points to the main code for state-vars diags & write-pickup.
726    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
727      transitions for useExfYearlyFields
728      - add new subroutine that determines the file to read from for
729        use*YearlyFields = .TRUE. and .FALSE.
730      - add a verification experiment to global_with_exf that tests
731        useExfYearlyFields with USE_EXF_INTERPOLATION defined
732    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
733      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
734      subroutines (which could be generated from a template, because they are
735      almost identical), for now they are included in obcs_prescribe_read.F for
736      simplicity
737    o pkg/exf:
738      - add a little more diagnostic to exf_interp_read (in analogy to
739        mds_read_field, can be turned off with debugLevel < debugLevA=1)
740      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
741        ugly but fast by unrolling short inner loops, inserting a unroll=8
742        directive in routine lagran, and splitting a loop and making do while the
743        outermost loop (the latter requires the intoduction of index arrays)
744    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
745    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
746      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
747    o verification/seaice_obcs: updated for restart test and latest options
748    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
749      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
750      for now this is only available for the C-grid code and also within
751      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
752    
753    checkpoint59m
754    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
755      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
756    o gad_som : fix flux output (& diagnostics) to have same units as other  
757      advection scheme fluxes (was previously multiplied by deltaT).  
758    o added verification/seaice_obcs both to test seaice open boundaries
759      and to provide an example matlab scrpt for generating them
760    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
761    o pkg/salt_plume: clean up salt_plume_frac.F to
762      remove redundancy in PlumeMethod 1 and 4
763    o pkg/kpp: added saltplume diagnostics
764    o pkg/obcs and pkg/seaice:
765      - do not set uice and vice to zero when OB*icefile are unspecified
766      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
767      - moved seaice tracer obcs after call to seaice_growth
768    o pkg/salt_plume: added various options for salt plume depth
769      criterion and for vertical distribution of the salt
770    
771    checkpoint59l
772    o pkg/ptracers: new version of ptracers pickup:
773      read meta file and write only fields which are needed to restart.
774      ( same logic as main pickup file ; also using pickupStrictlyMatch )
775    o pkg/seaice:
776      - add timescale for melting due to warm mixed layer as a means of
777        setting SEAICE_availHeatFrac more conveniently
778      - add a CPP-flag/runtime parameter check for flooding algorithm
779      - reformulated availHeat in seaice_growth.F to be independent of AREA
780    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
781      unit changes
782    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
783    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
784      SX vector computer.
785    o pkg/seaice:
786      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
787        seaice forcing fields can now be read only through pkg/exf
788      - removed some unused halos
789    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
790    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
791      or U/VICE from U/VWIND before computing U/VSTRESS
792    
793    checkpoint59k
794    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
795      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
796    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
797      all experiments pass when compile with un-initialised var. checking option.
798    o added pkg/salt_plume
799    o script to test restart (for now, in MITgcm_contrib/jmc_script)
800    o pkg/seaice: new read/write pickup version.
801      read meta file and write only fields which are needed to restart.
802      ( same logic as main pickup file ; also using pickupStrictlyMatch )
803    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
804    o lab_sea.hb87: modify the domain & update output.hb87.txt :
805      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
806      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
807      process. Fixed here by closing the domain at the Northern boundary.
808    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
809    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
810      a set of consecutive levels in/from a 3-D array.
811    o pkg/ptracers:
812      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
813      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
814    
815    checkpoint59j
816    o in pkgs: dic, obcs, offline, rbcs:
817      standard way to compute coeff. for time interpolation between 2 time reccords
818      which retains full precision (& make results less dependent on compiler).
819      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
820    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
821      packages instead of reading ice cover and wind speed separately
822    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
823     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
824      to allow to compile customized code before the update)
825    o cleaning-up:
826      - fix CPP instruction syntax in pkg/obcs
827      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
828        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
829      - fix some threads issue in IO parts.
830    o pkg/dic:
831      - add tons of "_d 0" (--> much better testreports !)
832       and then update outputs of tutorial_global_oce_biogeo
833    o pkg/mom_fluxform:
834      add a special version of momentum advection intended to conserve momentum
835      next to a bathymetry step or a coastline edge. (default = off = #undef)
836    o new read/write pickup version:
837      - for now, only implemented for main (mdsio) pickup file.
838      - write out only what is needed to restart; merge pickup_nh , pickup_ph
839        and main pickup together.
840      - read meta file; read only what is needed to restart; stop if a field
841        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
842        if it make sense (even if the restart is not perfect).
843      - if no meta file, assume that pickup to read corresponds exactly to
844        a pickup that would currently be written.
845      - read pickup written in the old format (until checkpoint59i) if it
846        recognizes an old meta file (no field-list).
847      - add a meta file in exp. which starts from a pickup: 2 cases:
848        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
849         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
850        b) a meta file describing the content of the associated pickup file
851         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
852    o pkg/mdsio & pkg/rw:
853      - new routine to read a meta file ; new set of routine to read
854        Multiple-fields file (with meta file).
855    o added open boundary conditions capability for seaice
856        HSNOW, HSALT, UICE, and VICE
857    
858    checkpoint59i
859    o adjoint:
860      * fix multiDimAdvection adjoint
861        (partial recomputation problem by TAF for fVerT(:,:,kDown)
862        and comlev1 size definition (maxpass vs. max. number of tracers)
863      * verification/global_ocean.90x45x15 adjoint now tests
864        NLFS and multiDimAdvection using DST3 (=30)
865      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
866    o pkg/kpp: add "_d 0" to real constant (if missing);
867      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
868      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
869    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
870      for internal parameters related to restart process (formerly from PARAMS.h)
871      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
872    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
873      as argument. (only atm2d & obcs write_pickup have not yet been updated)
874    o pkg/monitor:
875      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
876      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
877      - account for deep Atmosphere factor and density factor (anelastic)
878    o added open boundary conditions capability for seaice HEFF and AREA
879    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
880      thermodynamics
881      - requires a little reorganization, which affects the testreport results
882        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
883        so that now the conservative form is tested
884      - add a few comments
885    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
886    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
887    o add new diagnostics to seaice: advective, diffusive fluxes (only for
888      multidim-advection, for scheme 2 they are not filled) and transports,
889      thermodynamic growth rates
890    o change units of EmPmR (inside the code, + within coupling interface)
891      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
892      Affects results @ truncation level (cg2d match) and update output of
893       experiments: lab_sea(6), global_ocean.90x40x15(10),
894      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
895      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
896      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
897      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
898    
899    checkpoint59h
900    o pkg/exf:
901      - improve vectorization by moving if-statement out of loops in
902        exf_mapfields, exf_radiation
903      - exf_bulkformulae.F: introduce 2D fields and vectorize code
904    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
905    o testreport:
906      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
907        monitor & update offline_exf_seaice exp. output.
908      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
909    o pkg/seaice:
910      - bug fix in the evp solver: boundary conditions were affected be
911        masking of zMax/zMin (changes results)
912      - minor bug fix in boundary conditions in seaice_calc_strainrates
913        (changes results for no_slip)
914      - seaice_lsr.F: make interpolation of eta dependent on boundaries
915      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
916      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
917        stress formulation and no-slip boundary conditions
918    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
919      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
920    o pkg/seaice: a first HSALT time stepping equation has been checked in
921    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
922      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
923      without requiring DO-IF statements
924    o pkg/thsice:
925      use continuous power-law function for partition of energy between lateral
926      melting/freezing and thinning/thickening ; old code using step function
927      still available with #undef THSICE_FRACEN_POWERLAW
928      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
929    o testreport: change AD testing : check against results/output_adm.txt
930      using same scripts as for forward test.
931    
932    checkpoint59g
933    o adjoint testing: in preparation for changing testreport:
934      - output format: cost and grad written on separated lines
935      - ad output results in directory "results" (instead of "results_ad")
936    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
937    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
938    o pkg/ecco: allow user defined cost function contributions
939    o testreport:
940      Allow to choose (per experiment) the list of tested output variables
941       and the main variable (used to issue a pass/FAIL ) ;
942      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
943      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
944      Also modify printing of summary:
945       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
946       b) echo the list of tested variables in the individual summary.txt of
947          each experiment.
948    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
949      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
950      (but still depend on the tile decompostion of the domain).
951    o pkg/seaice: change a discretization detail to make the B-grid code
952      "more symmetric". This change is likely to remove all "ridges/leads" that
953      where quasi-aligned with the grid in B-grid solutions. It may also be
954      the solution to the stress coupling issues with the B-grid.
955    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
956      remove .cvsignore from input dir. (since testreport no longer run here).
957    o pkg/thsice:
958     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
959     - fix reshaping of sea-ice just after advection:
960       melt all the ice only if ice-volume is too small.
961     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
962       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
963     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
964    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
965      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
966    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
967      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
968      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
969      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
970      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
971      -> update output.txt
972    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
973     this affects truncation error: -> update output.txt of exp:
974      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
975      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
976    
977    checkpoint59f
978    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
979    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
980      a bounded range (in forward mode)
981    o pkg/ecco, ctrl, autodiff and mom_common:
982     internal parameter controls, completements of implementations
983    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
984    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
985      (not seem any difference in testing results).
986    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
987       at face corners.
988    o pkg/generic_advdiff:
989     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
990      loop range indices for computing vertical advection tendency
991      and do the calculation in the interior only (no overlap) ;
992      for now, only implemented for SOM advection (to save CPU time).
993     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
994    o exch2 adjoint
995      First set of changes:
996      - add exch2 hand-written adjoint templates
997      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
998        This will require cleanup in pkg/autodiff/*.F
999        (changed routines currently kept separate in verif. code/)
1000      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1001        that used to hide exch2 or cubed-sphere specific code
1002        (commented via 'cph-exch2')
1003    o pkg/seaice
1004      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1005    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1006       output of global_ocean.cs32x15.thsice .
1007    
1008    checkpoint59e
1009    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1010      for B-grid vector (not yet tested) and C-grid vector (<- only used
1011      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1012    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1013      (#ifdef ALLOW_SALT_PLUME)
1014    o gather_2d/scatter_2d: removed halo regions
1015    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1016      scheme and the corresponding test case (under front_relax dir). For now,
1017      only available with Skew-flux form and not yet tested in realistic set-up.
1018      adjoint: store directives updated, but gradient checks deteriorated,
1019      so maybe GM/Redi adjoint is now broken.
1020    o seaice adjoint
1021      * add AREA, HEFF, HSNOW as control variable
1022        (should not change lab_sea results)
1023      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1024    o pkg/seaice:
1025      * added computation of saltFlux in seaice_growth;
1026        For time being, sea ice salinity is assumed constant
1027        contribution of snow flooding to freshening of sea ice is neglected.
1028        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1029        defaults to 0.0 in order to maintain backward compatibility.
1030        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1031      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1032      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1033        heat content used to melt or grow ice
1034      * commented out cap of HICE: it helps keep ice thinner
1035      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1036      * applied OBCS T/S mask to HEFFM sea ice mask
1037    
1038    checkpoint59d
1039    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1040     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1041     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1042    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1043     and change default value of parameter "GM_Small_Number";
1044     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1045       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1046       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1047    o pkg/ecco: cost function when applying pkg/smooth to controls
1048    o pkg/ctrl: add forcingPrecond run time parameter
1049    o pkg/seaice:
1050     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1051     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1052       changes verification/lab_sea
1053     - rearrange implicit part of u-equation in LSR solver to make it easier to
1054       read, understand, and debug. This causes changes at the truncation level.
1055     - fix (serious) bug in the boundary conditions (sign error in the implicit
1056       part) of the LSR solver. Changes all LSR results.
1057     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1058       is initilized with small values - does not change lab_sea results.
1059     - added HsnowFile initialization capability
1060    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1061     initialization of pkg/smooth and application to control vector
1062    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1063    o dependencies: pkg/profiles requires pkg/cal
1064    o pkg/profiles:
1065     - added option ALLOW_PROFILES_GENERICGRID
1066         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1067         that interpolation information (grid points and coefficients) is provided
1068         within the netcdf input files.
1069         -> sample matlab scripts can be found in MITgcm_contrib/gael
1070         that allow you to prepare netcdf input files.
1071     - also modified: cleaner include statements, cleaner error print statements,
1072       cleaner stops when error, and more tests of the netcdf input files consistency.
1073    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1074    o pkg/seaice:
1075     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1076       requires a new routine: seaice_diagnostics_fill.F
1077     - make sure that seaice does not move if not forced (pressure replacement
1078       method, Hibler and Ip, 1995), changes results
1079     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1080     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1081       It is turned off by default (=-1.), because it changes the results.
1082     - make it possible to read AREA from a file, too.
1083    
1084    checkpoint59c
1085    o add S/R and diagnostics for oceanic mixed-layer depth
1086    o move GMRedi call after all vertical mixing schemes (including KPP)
1087    o pkg/thsice:
1088     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1089      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1090    o pkg/obcs:
1091     - bug fix for balance code
1092    o pkg/seaice:
1093      - allow values of SEAICE_elasticParm > 1
1094      - add new parameter SEAICE_evpTauRelax as an alternative
1095        to SEAICE_elasticParm
1096      - make lsr boundary conditions free slip (by default), changes result
1097      - add code for no slip boundary conditions for lsr
1098      - set minimum of zeta to zero (and not 4e8) (changes results)
1099      - add a cap on AREA after advecting AREA if seaice_growth is not called
1100    o change calculation of Visbeck K:
1101      - no longer depend on tapering scheme; instead, compute slope (limited
1102        by GM_maxSlope). this is equivalent to what was comuted before with
1103        clipping or linear tappering.
1104      - fix vertical averaging (wrong by 1/2 level)
1105      - leave the old version (but will not be maintained) within
1106        #ifdef OLD_VISBECK_CALC / #endif
1107      - update output of exp. ideal_2D_oce
1108    o change error catch in calc_r_star to improve vectorization
1109    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1110      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1111    o adjoint:
1112      Re-organized adjoint checkpointing according to Matt Mazloff
1113      (but with modifs/completions/cleanups)
1114      Storing is now bundled into large arrays to optimized I/O
1115      (and second step in cleanup of the_main_loop)
1116    
1117    checkpoint59b
1118    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1119      - export/import (between ocean & coupler) fields needed for ocean DIC.
1120    o pkg/seaice:
1121      - get rid of three more exchanges seaice_calc_viscosities (required
1122        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1123      - bug fix in seaice_ocean_stress (update of lab_sea required)
1124      - reduce loop boundaries to necessary minimum also in seaice_evp
1125      - go back to the old way of computing deltaC/Z as the adjoint likes that
1126        better
1127    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1128      passive tracer to an Age Tracer) + update output.txt
1129    o pkg/exf:
1130      - implement A-grid / C-grid selection for wind-stress input files.
1131      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1132      for now, in exf_bulk_largeyeager04.F only :
1133      - change implementation for case where windspeed + 2. components wind-stress
1134        are read-in. AND use rhoConstFresh to convert evap.
1135    o pkg/seaice:
1136      - use correct EXCH_UV for wind-forcing (on A-grid).
1137      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1138        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1139    o pkg/exf:
1140      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1141      EXF_INTERPOLATION:
1142      - merge global_with_exf/code version of exf_interp_read.F
1143        to the main code ;
1144      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1145        reading the file ; Important: This options needs to be defined to recover
1146        previous code.
1147        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1148      - no longer loose real*8 precision along the way when using exf_iprec=64.
1149    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1150      - change discretisation of evp-solver in order to avoid another exchange
1151        (changes lab_sea) and clean up a little
1152      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1153        help the adjoint (this also changes the results slightly)
1154      - add a few "_d 0" where they had been missing in seaice_evp.F
1155      - cleaning up: remove unused seaice_calc_rhs.F
1156    o pkg/exf: some cleaning-up:
1157      - change various "constants" into runtime parameters
1158      - cleaned-up Large&Yeager04 routine which should eventually
1159        replace exf_bulkformulae.F (changed names of S/R and CPP)
1160        and merged various ALLOW_ATM_WIND options
1161     only used with thsice pkg (in thsice_get_exf.F):
1162      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1163        which are used when useStabilityFct_overIce=TRUE (= the default)
1164      - change default values of ice & snow emissivity and scale downward LW
1165        by ice & snow emissivity.
1166    o pkg/thsice:
1167     fix few little problems, in thsice_calc_thickn.F:
1168      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1169      - melt only laterally if hIce < hThinIce (as the comments say)
1170      and in thsice_extend.F:
1171      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1172      - start to form ice as soon as the minimum ice-volume is reachable.
1173     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1174      and cpl_aim+ocn
1175    o pkg/kpp
1176     - move computation of surface related input fields to KPP into a new
1177       subroutine kpp_forcing_surf.F
1178     - remove wrong (within bi,bj loops) EXCH calls.
1179     - little cleaning (add argument myThid in last position, cvs header ...)
1180     - for now, fix conservation problem by exchanging KPPviscAz (may not
1181       be the best fix)
1182    o pkg/seaice
1183     - check for inconsistent evp parameter/cpp-flag combination
1184     - remove leftover errIO flat for obsolete name list error handling
1185    o OpenAD
1186     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1187    
1188    checkpoint59a
1189    o pkg/seaice: some parameter clarifications and a little bit of clean up
1190    o pkg/thsice: rename run-time parameters:
1191       himin       -> hIceMin
1192       himin0      -> hThinIce
1193       hihig       -> hThickIce
1194       i0          -> i0swFrac
1195       transCoef   -> bMeltCoef
1196       frac_energy -> fracMelting
1197      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1198       with default values (for now) that do not change the results.
1199      remove old version of thsice vars advection in pkg/seaice.
1200    o in FFIELDS.h:
1201      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1202      - make pLoad & sIceLoad always available (but still only used if
1203         ATMOSPHERIC_LOADING is #define).
1204    o pkg/kpp: replaced _KPP_RL with _RL
1205    o bug fixes for vertical diffusivity computations when both KPP and
1206        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1207        are no longer updating the vertical diffusivity array
1208        (passed as argument) but are (re-) setting those arrays.
1209    o pkg/seaice: fix bug in evp solver, while doing that
1210      - change (improve?) discretization of stress computations for both
1211        cgrid-lsr and evp solver
1212      - add a new routine to compute strain rates
1213      - the above changes lab_sea results
1214      - add no slip conditions for evp solver (off by default), lsr-version
1215        may follow
1216      - fix exchange for shear at Z-points (does not change lab_sea)
1217      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1218        (to force the user to pick a time step since there is not "safe" way
1219        of choosing it)
1220      - add principal stress diagnostics
1221      - rearrange fields for evp a little to avoid having to call a: too many
1222        exchanges and b: exchanges for stress trensor components which we do
1223        not have.
1224      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1225        of evp, complete rewrite for lsr case (latter is does not yet work
1226        in all cases)
1227    o pkg/kpp: add code to have mixing in shelf ice caverns
1228      - add myThid to all kpp routines (long overdue)
1229    
1230    checkpoint59
1231    o pkg/exf:
1232      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1233        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1234      - move exf header files from lower_case.h to UPPER_CASE.h ;
1235        add missing cvs Header & Name
1236      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1237      - add namelist param. selectStressGridPosition, exf_monFreq
1238      - retire many _CLIM routines, and remove data.exf_clim
1239        + params moved to data.exf
1240        + climsst, climsss now handled by exf_set_gen, i.e.
1241          climss?period=0 refers to constant field,
1242          climss?period=-12 to monthly forcing
1243      - split up namelists in data.exf
1244    o pkg/seaice:
1245      - remove seaice_exch and seaice_exch_uv
1246      - remove superfluous exchange of theta
1247      - add myThid to seaice_budget_ocean/ice
1248      - add new interface for atmospheric wind forcing (C-grid only)
1249        + new routine
1250        + two new field (taux, tauy for stress over ice)
1251        + removed one global field (DAIRN) for C-grid case only
1252    o pkg/thsise
1253      - 2nd set of modifs for thsice adjoint in conjunction with exf
1254    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1255    
1256    checkpoint58y_post
1257    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1258      vertical diffusivity, similar to that in MOM4; turned on using
1259      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1260      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1261    o Added capability for 3D specification of background vertical diffusion
1262      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1263      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1264      "data" file that contains the 3D vertical diffusivity coefficients.
1265    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1266      - add code within pkg thsice to advect & diffuse sea-ice fields
1267      similar to (and will replace) what has been added in  seaice_advdiff.F,
1268      but: - conserving Mass, Heat & Salt.
1269           - better when using non-linear advection scheme (not yet fully tested)
1270           - can also be used in atmospheric set-up (for now, only the diffusion).
1271    
1272    checkpoint58x_post
1273    o IO option for global-file compact format:
1274      - add options when generating topology (utils/exch2/matlab-topology-generator)
1275      - add I/O capability (pkg/mdsio).
1276      - adapt utils/matlab/rdmds.m to read this format.
1277      for now long-line format not yet supported by pkg/mdsio (& exch2).
1278    o shelfice: add a few diagnostics
1279    
1280    checkpoint58w_post
1281    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1282      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1283      (and replace horiVertRatio in NH code).
1284      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1285                         and tutorial_plume_on_slope (sensitive to truncation)
1286    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1287      directly to drive seaice model (C-grid only)
1288    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1289     - reintroduce computation of wind from stress,
1290     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1291       mass points to avoid tau = 0
1292     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1293    o rdmnc.m: make it work with "global" files created with gluemnc
1294    o rdmnc.m : some improvements in dealing with singleton dimension
1295      (tested on all testreport mnc output files).
1296    o genmake2: disable pkg/profiles if netcdf test fails.
1297    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1298    o move call to cal_readparms up to make calendar parameters/variable available
1299      to all packages
1300    
1301    checkpoint58v_post
1302    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1303      useDynP_inEos_Zc tested.
1304    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1305    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1306      and portions thereof.  See read_cs.txt for description and examples.
1307    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1308      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1309      following the great-circle arc between those 2 points.
1310    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1311      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1312    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1313     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1314     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1315     - still needs work (not working with some options ; efficiency to improve)
1316       and serious testing.
1317     - use this scheme for temperature & salinity in 2 advection test exp.:
1318       advect_xy & advect_xz, respectively.
1319    
1320    checkpoint58u_post
1321    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1322    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1323    o testreport: add option "-skipdir" to skip some test.
1324    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1325      momentum calculation.
1326    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1327    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1328      remove checkpoint.F and the_correction_step.F (no longer used);
1329      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1330    o add option (linFSConserveTr) to correct for tracer source/sink due to
1331      Linear Free surface
1332    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1333    o pkg/thsice: fix reading mnc-pickups
1334    
1335    checkpoint58t_post
1336    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1337    o pkg/mdsio:
1338     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1339       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1340       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1341     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1342     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1343       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1344     - new S/R (to replace MDSWRITEMETA), which allows to write more
1345       informations (variable names, time ...) to meta files.
1346     - modify rdmds.m to give back the meta file content.
1347    o pkg/diagnostics: change vertical interpolation to be safer, and more
1348       flexible (define p-levels to interpolate to in data.diagnostics);
1349      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1350       diagnostic pointer.
1351    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1352    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1353    o fix multi-category seaice:
1354     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1355       SEAICE_MULTICATEGORY
1356     - fix short wave heat flux
1357    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1358       and allow to use EVP solver. Change forward lab_sea: test both EVP
1359       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1360    o Initial check-in of lab_sea adjoint
1361      (very similar to natl_box_adjoint/code_seaice)
1362      * used C-grid and EVP solver
1363      * used KPP, GM/Redi
1364      * uses inAdExact=.TRUE.
1365      * gradient checks fail for both ADM and TLM
1366        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1367        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1368        issue is related to forward mismatch between g77 an ifort
1369    o pkg/seaice: overhaul of thermodynamics
1370     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1371     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1372     - move a few global fields out of SEAICE.h into seaice_growth.F and
1373       make them 2D (FICE/QNETO/ ...)
1374     - remove FO (it is the same as QNETO)
1375     - introduce a few local fields to avoid modifying external fields such
1376       as atemp, etc.
1377    
1378    checkpoint58s_post
1379    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1380      changed exf_set_gen.F so that
1381        genperiod=0 means input file is one time-constant field and
1382        genperiod=-12 means input file contains 12 monthly means
1383    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1384      this affects truncation error ; generate new output file for exp. which
1385      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1386        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1387        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1388        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1389        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1390        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1391    o start implementation of deep-atmosphere and anelastic formulation
1392    o verification: remove 2nd copy of input files and use script "prepare_run"
1393      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1394    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1395    o profiles: fix for multithreaded case
1396    
1397    o diagnostics: rename few diags:
1398      s/'PRESSURE'/'RCENTER '/g
1399      s/'TICE    '/'oceFreez'/g
1400      s/'TAUX    '/'oceTAUX '/g
1401      s/'TAUY    '/'oceTAUY '/g
1402      s/'SWFLUX  '/'oceQsw  '/g
1403      s/DIFx/DFxE/g
1404      s/DIFy/DFyE/g
1405      and add few ocean-forcing diagnostics:
1406      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1407    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1408      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1409      as actual snow thickness.  It now refers everywhere to effective snow
1410      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1411    
1412    checkpoint58r_post
1413    o modifications to pkg/seaice/growth.F, which change results of
1414      lab_sea experiment: fixes pertain to melting snow over open water, to
1415      masking EVAP under sea ice, and to using the correct AREA variable for
1416      computations of EVAP, PRECIP, HSNOW, and GHEFF
1417    o add ability to read bathy, salt, and theta using MNC (off by def)
1418    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1419      both are turned off by default and do no change any results
1420    o seaice advection with pkg/thsice: a step toward the use of non-linear
1421      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1422    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1423      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1424      in natl_box (affects results @ truncation level: update output.txt)
1425    o multi-threading and IO:
1426      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1427      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1428        (needed to work with SingleCpuIO): tested in all verif. exp.
1429    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1430      affects the results (but none of the verification test uses this scheme).
1431    o Adding some pkg/diagnostics capability to pkg/seaice
1432      (will certainly be subject to changes)
1433    o ctrl: adding new control variables:
1434      lwflux, lwdown, evap, snowprecip, apressure, runoff
1435    
1436    checkpoint58q_post
1437    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1438      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1439      high_res_cube configuration by 4% on Columbia.
1440    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1441      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1442      dynamical allocation (seems to work in multi-threaded).
1443    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1444      single CPU io) so that TAF does not have to see EESUPPORT.h
1445    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1446    
1447    checkpoint58p_post
1448    o obcs: stop if obcs is used with useCDscheme = .true.
1449    o shelfice:
1450     - fix a sign error so that no slip at shelfice interface works
1451     - remove stop for combination non-hydrostatic code and shelfice. That does
1452       not mean, that the results are correct, but at least they are numerically
1453       stable
1454    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1455    o added adjoint exch routined for all exch*3d* routines
1456      and updated flow directives
1457    
1458    checkpoint58o_post
1459    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1460      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1461    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1462      and clean-up reading/writing of pickup files.
1463    o fix local version of read/write pickup (NH part) in rotating_tank/code
1464    o simplify EXCH interface:
1465     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1466     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1467    o added the regrid package
1468    o shelfice:
1469     - add a simple boundary layer scheme to reduce noise
1470     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1471    
1472    checkpoint58n_post
1473    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1474       local variable (not in common block).
1475    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1476      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1477      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1478        to work with SingleCpuIO.
1479    o add "_d 0" to real constant of pkg/cfc subroutines ;
1480       update exp. cfc_exemple & tutorial_cfc_offline output files.
1481    o multi-threading and IO:
1482      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1483        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1484      - barrier before and after reading.
1485      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1486      - avoid using MDS_WRITELOCAL for LAND pkg output.
1487      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1488        common-block variables ; Allows multi-threading with master-thread IO.
1489    o change default MAX_NO_THREADS from 32 to 4 ;
1490      and stop cleanly when MAX_NO_THREADS is too small.
1491    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1492    
1493    checkpoint58m_post
1494    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1495       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1496    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1497       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1498       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1499    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1500        add MITgcm_tutorials (= code + all the tutorials)
1501    o ecco, option to compute cost for total ssh (mean+anom)
1502    o consistent with addition of ptracer and ssh in pkg/profiles
1503    o profiles: adding ptracer and ssh
1504    o testreport: change multi-test output-file name
1505      (from output.txt.{name} to output.{name}.txt)
1506    o profiles: now ok for mutli-tiles case
1507    o seaice: add 4 parameters for different advection schemes for area,
1508      (effective) seaice thickness, enthalphy, and snow height. Their default
1509      is the standard parameter SEAICEadvScheme
1510    o calc_gw:
1511     - add cosFacU in zonal viscous flux (harmonic.visc.).
1512     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1513       of tutorial_plume_on_slope.
1514    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1515    o calc_gw: true flux-form, account for horizontal grid spacing.
1516      update rotating_tank results, but not plume_on_slope (affected at
1517      truncation level, 11 digits).
1518    
1519    checkpoint58l_post
1520    o calc_gw:
1521     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1522     - remove side-drag for now (need to fix it); update plume_on_slope results.
1523     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1524    o commit code to make SST/SSS weights spatially variable
1525      (based on either variable in-situ or variable initial T/S weights)
1526    o pkg/ecco:
1527      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1528        now based on horizontally varying weights wthetaLev, wsaltLev
1529      * cost_averagesflags now returns year indices in addition to day, month
1530      * sflux balance is performed on annual basis
1531        (sflxumm, sfluxmm2, bal_sfluxmm)
1532      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1533        including separate counting and multipliers
1534    o pkg/rbcs
1535      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1536    
1537    checkpoint58k_post
1538    o testreport:
1539     - always build in dir. "build" (if not there, mkdir build instead of building
1540       & running in input)
1541     - run in dir run (if it exists), in build otherwise.
1542     - call prepare_run (if input/prepare_run exists)
1543     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1544    o pkg/exf modifications to interpolation and rotation routines for more
1545       reasonable treatment of North Pole singularity: for tracers North Pole
1546       value is set to northernmost zonal-mean value, for zonal velocity it is
1547       set to zero, and for meridional velocity it is set to northernmost value.
1548    o pkg/exf/exf_check_range.F
1549     - add tile index to diagnostics and move stop statement to the very
1550       end of the routine.
1551    o pkg/diagnostics: (diagnostics_main_init.F)
1552      define title of isomorphic variables according to the current config.
1553    o pkg/thsice with pkg/seaice dynamics:
1554    - fix domain of computation (interior only, required for exf) and do exchanges
1555    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1556    o towards a standard way of dealing with multi-threading in MONITOR
1557      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1558    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1559       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1560    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1561    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1562    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1563       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1564    o tracer advection:
1565     - clean-up and simplify calc_common_factors.F
1566     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1567       advection subroutine (but still not used within DST advection S/R)
1568    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1569    
1570    checkpoint58j_post
1571    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1572      from file (collects calls previously in FORWARD_STEP)
1573    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1574    o adjoint store dir. adjusted accordingly
1575    o genmake2
1576      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1577    
1578    checkpoint58i_post
1579    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1580      on wind stress (SEAICEstressFactor defaults to 1.)
1581    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1582      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1583    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1584      on CS-grid: no longer loosing mass.
1585    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1586    o pkg/ggl90: fix sloppy output and fix a bug
1587    o pkg/seaice: added SEAICEuseEVPpickup parameter
1588      - Set to false in order to start EVP solver with
1589        non-EVP pickup files when using SEAICEuseEVP
1590      - fix sign error in diffusion in seaice_calc_rhs
1591    
1592    checkpoint58h_post
1593    * Modifications for bottom topography control
1594      o replace hFacC by _hFacC at various places
1595      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1596      o add non-self-adjoint cg2d_nsa
1597      o update autodiff support routines
1598      o re-initialise hfac after ctrl_depth_ini
1599      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1600    * Adding verification for 5x5 box (4-layer) bottom topography control
1601    
1602    checkpoint58g_post
1603    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1604       used for mean seasonal cycle, mean diurnal cycle); add an example
1605       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1606    o pkg/ggl90:
1607      - add parameter (minimum surface kinetic energy)
1608      - fix bug (avoiding division by zero)
1609    o couple pkg/thsice to pkg/seaice:
1610      - modify advection in seaice to accomodate new scalar fields to be advected
1611      - only muliDimAdection scheme work with seaice/thsice
1612      - mapping of thsice-variables to seaice-variables, back and forth
1613      - does not break the verification experiments, but does not give the
1614        desired results either
1615    o pkg/seaice
1616      - make (default) second order advection a bit less confusing?
1617    
1618    checkpoint58f_post
1619    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1620      to pkg/seaice):
1621      - new routines thsice_map_exf and thsice_get_exf provide the interface
1622      - add an additional formal parameter to thsice_solve4temp
1623    o pkg/exf:
1624      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1625      - correct Stefan-Boltzmann constant
1626      - new parameter for longwave surface emittance
1627      - separate some stuff from exf_bulkformulae into new routines  
1628        exf_radiation, exf_wind
1629      - add new parameters and constants: longwave emissivity for ocean, ice
1630        and snow, evaporation parameters over ice
1631      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1632        either wind from stress or stress from wind
1633    o pkg/thSIce:
1634    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1635    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1636       and THSICE_CALC_THICKN
1637    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1638    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1639      to make debugging easier.
1640    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1641    o pkg/bulk_force:
1642      - clean-up comments and parameters ;
1643      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1644    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1645      generate new output for test-experiment: aim.5l_cs.thSI
1646    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1647      testreport accordingly
1648    
1649    checkpoint58e_post
1650    o SEAICE_CGRID adjoint done
1651    o R_STAR adjoint implemented.
1652      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1653      * need to sort out init. of h0facc, etc.
1654    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1655      to be able to use it in pure forward.
1656    
1657    checkpoint58d_post
1658    o upgrade simple test-experiment to tutorial example:
1659     step.1: duplicate the experiment and (step.2) will remove the old copy.
1660      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1661      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1662      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1663      tutorial_global_oce_biogeo    <- copy of dic_example
1664      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1665      tutorial_plume_on_slope       <- copy of plume_on_slope
1666      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1667      tutorial_global_oce_optim     <- empty for now (David ?)
1668      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1669     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1670    o correct a sign problem in cost_scat.F
1671    o obcs and ptracers: fix boundary conditions for advections schemes
1672      with larger stencil
1673    o thsice adjoint: start
1674    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1675      completeness
1676    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1677      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1678    o ptracers adjoint:
1679      * avoid extensive recomputatations
1680      * fix missing re-init. of gptr (missed by TAF)
1681    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1682      me to turn off the excessive output to STDOUT that this package produces
1683    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1684      and add those terms in Vector-Invariant formulation.
1685    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1686      if the control period (xx_hfluxperiod etc) is 0
1687    o in profiles pkg, clean routines and fix details
1688    o in ecco pkg, reading ssh data:
1689      fix problem in case the model does not start at iter0=0
1690    o fix mnc-pickup/restart for ptracers
1691    o new package prifiles:
1692      code to compute profile-based cost by Gael Forget
1693      (modifs in ecco, ctrl, autodiff)
1694    o Benign bug fix in initialization (spotted by M. Mazloff) of
1695      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1696    
1697    checkpoint58c_post
1698    o adjoint: finish NLFS adjoint and provide reference output in
1699      verification/global_ocean.90x40x15/results_ad_nlfs
1700    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1701      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1702      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1703      with SEAICE_CGRID defined.
1704    o move calendarDumps from "data" to "data.cal" and clean-up the code
1705      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1706    o add useEXF & useCAL flags (for now, set in hard-coded way)
1707    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1708      (were missing in NH mode, and wrong in quasihydrostatic mode).
1709      waiting for Chris updated version of calc_gw to add those CALLs.
1710    o fix bug in quasihydrostatic S/R ;
1711      add a test for this option: global_ocean.90x40x15.qshyd
1712    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1713      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1714    o add on/off flag useOffLine for package OFFLINE
1715    o seaice:
1716      - modify advection so that it works also on the C-grid
1717      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1718        problem in multi-tile runs with C-grid
1719      - add flags for clipping ice velocities and/or masking solver forcing
1720      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1721        C-grid solver
1722      - added a few comments to seaice_diffusion.F
1723      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1724        are now exclusive)
1725      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1726        required re-ordering the code a little:
1727       + make DAIRN global variable (defined in SEAICE)
1728       + move computation of the viscosities eta and zeta into a new separate
1729         routine (because I need to recompute them in seaice_ocean_stress.F)
1730    
1731    checkpoint58b_post
1732    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1733      update output.txt of exp. aim.5l_cs.thSI
1734    o various mnc cleanups and improvements:
1735      + shrink lookup tables by factor of ~4
1736      + better error reporting when running out of lookup space
1737      + able to handle longer path/file names (up to 500 chars)
1738    o adjoint:
1739      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1740      - TBD: "hidden" mom_vecinv recomp. in dynamics
1741    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1742     (allow to differentiate between forcing components using new integer flags:
1743      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1744     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1745    o ecco
1746      - enable trend removal from SSH anomaly obs.
1747    o adjoint
1748      - a fix for PmEpR when #undef EXACT_CONSERV
1749      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1750      - try to fix "hidden" recomp. in forward_step for NLFS
1751        (NLFS seems broken sometimes after I checked it in)
1752    o seaice:
1753     - add c-grid version of the dynamic solver:
1754       + three new routines that are the c-grid substitute lsr, dynsolver
1755         and ostres
1756       + put a few fields that were local to dynsolver into global common
1757         blocks, so that I can move the computation of stresses etc into
1758         seaice_lsr (saves coding but may break the adjoint).
1759     - replace more hardwired parameters by runtime parameters
1760     - add ice masks that mask the rhs of the implicit solvers where there
1761       is no ice (commented out in seaice_dynsolver, because i am not sure
1762       if this works properly), eventually this should replace the clipping
1763       of ice velocities in seaice_dynsolver to +/-40cm/s.
1764    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1765      include it only where its needed
1766    o move balancing of fluxes before the call of external_forcing_surf
1767    o seaice:
1768      - correct units of turning angles (now they are really in degrees)
1769      - move computation of GWATX/Y out of main routine into dynsolver
1770      - initialize GWATX/Y in seaice_init
1771    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1772      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1773    o seaice: add runtime flags for turning angles (default to zero)
1774    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1775      and trend from exf forcing and ctrl control adjustments
1776    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1777      (since checkpoint57x_post)
1778    o change the default rotation period to 86164.s = the Earth rotation
1779    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1780      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1781    o seaice advection: add code for choosing between the default (2nd order
1782      central differences) and multiDim advection schemes provided by
1783      pkg/generic_advdiff
1784    o seaice:
1785      - removed all references to SEAICE_GRID.h fields from
1786        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1787        (cubed-sphere configuration will change a little)
1788      - grid computations in seaice_init are obsolete now.
1789      - cleaned up code a little so that is easier to read (hopefully).
1790      - added new (better?) discretizations of default advection and diffusion
1791        (turn on with SEAICEuseFluxForm)
1792      - replace 1 in 3d global fields by kSurface in growth.F
1793      
1794    checkpoint58a_post
1795    o seaice:
1796      - bug fix in advect.F
1797    o shelfice:
1798      - separate shelfice load anomaly from pload (breaks with time
1799        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1800        Its default is 0., but it may be computed more cleverly from (unknown)
1801        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1802        done offline. A good approximation of the pressure load anomaly is
1803        necessary to avoid large initial adjustment processes underneath
1804        deep-reaching shelfice.
1805      - small fix in ISOMIP shelfice_thermodynamics
1806      - add more sophisticated thermodynamics of Hellmer (1989), this is
1807        now the default
1808      - give a few constants more intuitive names
1809    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1810      if bulk formulae are used in long integration (especially EmPmR). Turn
1811      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1812      if balancePrintMean, the imbalance that is substracted is printed to
1813      STDOUT.
1814    o fix bug (typo) in obcs_apply_eta.F
1815    o add a new package shelfice which enables us to model the circulation
1816      underneath shelf-ice with draughts of hundreds of meters.
1817     - works
1818     - to do: + include improved thermodynamics
1819              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1820                instead of new field kTopC
1821              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1822                instead of new field R_shelfIce and new code in ini_depth.F
1823                and ini_mask_etc.F?
1824              + adjust vertical mixing schemes?
1825    o seaice pkg:
1826     - add a cpp-flag to include a simple formula for a salinity dependent
1827       freezing point of sea water at the surface
1828     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1829       meridional stresses are now different (and hopefully correct)
1830    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1831       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1832       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1833    o pkg/diagnostics: add options and parameters for regional-statistics
1834       diagnostics ; define regions by reading a region-mask from a file
1835       (might add other options later)
1836    o pkg/bulk_force:
1837     - add option and parameters to use AIM surface-flux formulae.
1838     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1839       others forcing fields (defined in PARM05, parameter file "data") are loaded
1840       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1841     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1842     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1843     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1844       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1845     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1846    
1847    checkpoint58
1848    o add "--embed-source" option to genmake2 which, when the supporting
1849      tools can be compiled (as determined by genmake2) will turn on the
1850      embed_files package which then embeds the entire MITgcm source code
1851      (*.[fFhc] + Makefile) used for the build within the executable
1852      - requested by CNH but off by default
1853      - adds a paltry <9MB to the mitgcmuv executable in most cases
1854      - only writes the output when useEMBEDSRC in eedata is true
1855    o clean up 3-dim. relaxation codes:
1856      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1857      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1858      * Thanks to Tom Haine for testing!
1859    
1860    checkpoint57z_post
1861    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1862      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1863    o fix the pickup behavior for obcs in combination with ptracers
1864    o fix a bug in ptracers_external_fields_load
1865    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1866      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1867    o transfered surface NH pressure to eta field (if exactConserv).
1868    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1869         and update lab_sea output.txt file.
1870    o completing 3-dim. relaxation code: additional term
1871         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1872      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1873      * At compile time, in "EXF_OPTIONS.h" set
1874          #define  ALLOW_CLIMTEMP_RELAXATION
1875          #define  ALLOW_CLIMSALT_RELAXATION
1876      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1877          tauThetaClimRelax3Dim = 15552000.0,
1878          tauSaltClimRelax3Dim  = 15552000.0,
1879      * 3 cases:
1880          1) Use a constant-in-time 3-dim. field
1881          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1882          3) Real-time relax. to time-evolving prescribed field
1883    o Adding Laplacian-type smoothness constraint on
1884      initial and boundary (forcing) controls (ic, bc)
1885      * enable at compile-time via
1886        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1887      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1888      * Absolute scale somewhat unclear so far
1889      * no area weighting was included since no other cost term does so far
1890    
1891    checkpoint57y_post
1892    First step for a NLFS adjoint
1893    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1894    o new init. routines for calc_r_star, calc_surf_dr
1895    o still need to deal with ini_masks_etc
1896    o testreport seemed happy
1897    checkpoint57y_pre
1898    
1899    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1900    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1901    o add new offset feature to offline pkg (plus minor cleanup)
1902    o cfc fixes for final year of integration
1903    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1904      be in GCHEM_OPTIONS).
1905    
1906    checkpoint57x_post
1907    o fix testreport Pb in multiple test experiment.
1908    o cleanup our namelist syntax in verification:
1909      - make it more F95 standards compliant (some work still needed)
1910      - allows the vast majority of our tests to work with gfortran
1911    o Non-Hydrostatic:
1912     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1913     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1914    o Allow to apply AB on T,S rather than on AB(gT,gS):
1915     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1916     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1917       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1918     - need a "clever" read_pickup to restart from the other AB formulation
1919    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1920    o remove some unused variables (reduces number of compiler warnings)
1921    o adjoint
1922      * Disable useVariableViscosity for adjoint for time being
1923        (there are a number of extensive recomputations)
1924      * Initialize certain variables needed for adjoint
1925    
1926    checkpoint57w_post
1927    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1928                 fix the singleCpuIO RS version of MDSWRITEFIELD
1929       and add a WARNING if using globalFiles=T with multi-processors.
1930    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1931      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1932    o tracer advection scheme:
1933      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1934       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1935       was not very convenient).
1936      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1937       (further tests needed for the implicit DST & Flux-Limiter schemes).
1938    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1939      and sRef for convenience, handy, when you want to initialize
1940      ptracers in a large domain with a constant non-zero value. Also,
1941      untangle ptracers_init.F a little.
1942    
1943    checkpoint57v_post
1944    o change dome exp. to use variable viscosity in side-drag terms.
1945    o remove all the files from the cfc_offline test since they are now
1946      incorporated into tutorial_cfc_offline which has been producing
1947      identical results for a few days of testing
1948    o add new parameter: sideDragFactor to enable half-slip-side BC
1949      and change side-drag S/R to use viscosity from mom_calc_visc
1950      (can switch back by setting sideDragFactor=0.); affects results at
1951      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1952       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1953    o vorticity & strain are now computed without masking, to account for
1954      no-slip-side BC in variable viscosity calculation ; mask is applied
1955      anyway later on, before computing advection/coriolis terms.
1956    o modify exp4 to test new obcs support for reading from external files
1957      and for passive tracers
1958    o fix behavior of ptracers_monitor when monitor output is written to a
1959      netcdf-file; still not independent of monitor.F (writes in the same
1960      file).
1961    o change default value of tRef (put a uniform, meaningful value for ocean
1962      & atmos) and initialize sRef (was missing, as Martin mentioned).
1963    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1964      to be proportional to enstrophy dissipation length.  Thus,
1965       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1966      This is now consistent with Smagorinsky and with the manual.
1967    
1968    checkpoint57u_post
1969    o OBCS and PTRACERS: add open boundary support for passive tracers
1970      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1971        OB-values from file; this is not different from the way theta and salinity
1972        are treated
1973      - however, Orlanski-radiation conditions are not supported, and the model
1974        will stop if you use pTracers and Orlanski at the same time.
1975      - beefed up the rountine obcs_external_fields_load: now only those open
1976        boundary values are overwritten with values from files for which there
1977        are really files, otherwise the OB-fields remain untouched. This makes
1978        it possible to use different OBs at different ends of the domain (as
1979        with EXF)
1980    o reduce number of exch calls in shap_filt (s2).
1981    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1982      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1983    
1984    checkpoint57t_post
1985    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1986    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1987      same truncation, independent of the face number: affects affects several
1988      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1989    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1990      note that biharmonic viscosity + no-slip was not tested in any experiment.
1991    o fix bug in non-linear free-surf side-drag ; generate new output for
1992      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1993    o make mnc honor the writeBinaryPrec flag for most kinds of output
1994    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1995    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1996      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1997    o add brackets in multi-terms sum to get same truncation, independent of
1998      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1999      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2000    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2001      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2002      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2003      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2004      Suggested values of viscosity parameters found in mom_calc_visc.
2005      Many new viscosity diagnostics available.
2006    
2007    checkpoint57s_post
2008    o Add clearing-house for viscosity calculations, mom_calc_visc and
2009      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2010      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2011      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2012      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2013      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2014      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2015      ViscAhStrain and viscAhTension are now retired.
2016    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2017    o In response to JMC's bug report, genmake2 now ignores any soft-links
2018      that it finds in the *current* directory when searching for files.
2019      Soft-links found in any other source directories will still work as
2020      they did before.
2021    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2022      a C routine to unlimit the stack size
2023    o mnc-ify pkg/aim snapshot vars
2024    o mnc-ify pkg/land as requested by Daniel
2025    o various changes to mnc including:
2026      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2027      - output can now be grouped so that all files within a group
2028          change the ITER portion of their names in lock-step together
2029      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2030          and works with both EXCH1 and EXCH2 (but needs more testing)
2031      - writing works for all verification test cases w/ g77 on Linux
2032    
2033    checkpoint57r_post
2034    o make MNC variable initialization happen earlier
2035    o add diagnostics for (almost) each term of the momentum Eq.
2036    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2037    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2038    o remove MINIMAL_TAVE_OUTPUT option ;
2039      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2040    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2041      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2042    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2043    o add time-dependent SST, SSS control
2044    o cost terms in ecco/ modularized (new cost_generic.F)
2045    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2046    o new infrastructure for seaice model vs. obs misfits in seaice/
2047      * driver from the_main_loop.F is seaice_cost_driver.F
2048      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2049      * gradient check in Exp. 6a of natl_box_adjoint/
2050    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2051      (see README file)
2052    
2053    checkpoint57q_post
2054    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2055    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2056      - bug was reported by Jean-Michel and Ian Fenty
2057    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2058      update exp. cpl_aim+ocn output.
2059    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2060      Needed for high-res. runs with large global files
2061      to be able to limit tapelev size
2062    o Changed some tests for adjoint:
2063      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2064      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2065      * global_ocean.90x40x15/ back to default 3-level checkpointing
2066    o Modifications to enable scripted COMMON to MODULE conversion
2067      * verification/OpenAD/code/ has necessary scripts and description;
2068      * converts, compiles and runs successfully;
2069    
2070    checkpoint57p_post
2071    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2072    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2073      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2074    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2075    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2076      (was already the case for dissipation with mom_vecinv,
2077       and also the case for grad.PhiHyd when staggered-timeStep)
2078      This will allow to put dissipation out-off the AB time-stepping.
2079     Unfortunately, affects truncation error. Update output of exp. that "fails"
2080      (cg2d matching number) and leave the others for later: front_relax(10),
2081      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2082      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2083    
2084    checkpoint57o_post
2085    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2086      (2) its ready to be documented during the 20050801 DocFest
2087    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2088      for ideal_2D_oce and lab_sea on linux_ia32_g77
2089    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2090      in global1x1_tot/code_seaice_adj to access indices 32, 33
2091      (worth another tag)
2092    
2093    checkpoint57n_post
2094    o adding precip control xx_precip 32
2095    o adding swflux control xx_swflux 33
2096    o Replacing 10 forcing penalty cost routines by 1 generic.
2097    o Implementing partitioning in time-mean and variable adjustment
2098      for atmos. state.
2099    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2100    o in natl_box_adjoint:
2101      * updated exp 1 to 10
2102        (but does not have time-mean vs. variable split results yet)
2103    o updated global1x1/*_seaice_adj/
2104      to incorporate latest changes
2105    o enable useSingleCpuIO for mdsio vector routines
2106      (applies in particular to tapelev I/O)
2107    o removed inefficient K-loop in all active_file*control*.F
2108    
2109    checkpoint57m_post
2110    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2111      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2112    o pkg/exch2: filling of face-corner halo regions is optional
2113      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2114    
2115    checkpoint57l_post
2116     tag before updating tutorials (pre-release-2)
2117    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2118       for output and interpolation of input fields onto model grid)
2119    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2120       Affects results of exp. rotating_tank ; update output.txt.
2121    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2122          and taking the square quantity and/or using a fraction-weight field.
2123    o fix aim_diagnostics_init.F mate numbers.
2124    o add mnc output capability to diagnostics/diagstat and update
2125      our cvsignore files for the ACSII output generated
2126    
2127    checkpoint57k_post
2128    o lab_sea now uses diagnostics package and provides a suite of
2129      new EXF diagnostics output.
2130    
2131    checkpoint57j_post
2132    o exf
2133      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2134        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2135        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2136      * extended diagnostics output
2137        - now includes all EXF variables
2138        - hs, hl moved to common block
2139        - separate S/R for diagnostics, called after ctrl vector is added
2140        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2141        - EXFqnet contains true Qnet (i.e. includes qsw)
2142      * updated verif. lab_sea, global_with_exf
2143      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2144        to ensure that diagnostics sees a true EXFqnet
2145    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2146    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2147      several times with different frequencies.
2148    o mnc-ify the thsice package as requested by Daniel Enderton
2149      - the monitor--MNC output needs work
2150      - many attributes need to be added (most are currently blank)
2151    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2152      - many attributes need to be added (most are currently blank)
2153    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2154    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2155    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2156      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2157         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2158    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2159     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2160    
2161    checkpoint57i_post
2162    o Diagnostics package was changed: diagnostic allocation is now deactivated
2163      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2164    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2165      add 1rst Order upwind vertical Shear.
2166    o add a quick fix for A/B checkpointing in OFFLINE mode
2167    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2168      end-run around the C/Fortran linking horror in eesup/src/timers.F
2169    o added pkg/runclock: allows user to terminate run based on wall clock
2170    o added non-hydrostatic scaling parameter: nh_am2
2171    o pkg/my82: futile attempt to make results compiler-independent by adding
2172      some "_d 0", etc. no effect.
2173    o for mnc output, fill the 'T' coordinate var with myTime and create a
2174      separate 'iter' variable for iteration count
2175    o pkg/diagnostics:
2176      add new capability: output of Global/Regional & per-level statistics ;
2177      tested against monitor output (including land & thSIce) on various exp.
2178    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2179    
2180    checkpoint57h_done
2181      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2182      data.diagnostics, data.gchem, data.ptracers) is done.
2183    
2184    o pkg/diagnostics: prepare for Global/Regional statistics.
2185      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2186    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2187      and rename it: DIFFERENT_MULTIPLE
2188    
2189    checkpoint57h_post
2190    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2191    o pkg/diagnostics: change output frequency, now in seconds (instead
2192      of Nb of iterations). This requires to change data.diagnostics.
2193    checkpoint57h_pre
2194    
2195    o in mnc, let the user create the output dir if both mnc_outdir_date
2196      and mnc_outdir_num are false
2197    o add fflags() to pkg/diagnostics which allows one to specify, on a
2198      per-file basis, the file precision [default behavior is unchanged]
2199    o added diagnostics to pkg/kpp, including computation of mixed layer
2200      depth based on a temperature/density criterion
2201    o updated verification/natl_box to test the new pkg/kpp diagnostics
2202    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2203    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2204    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2205      not mnc -- this mistake was found by JMC and is now corrected
2206    
2207    checkpoint57g_post
2208    o add Adams-Bashforth 3rd Order time stepping:
2209      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2210      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2211    checkpoint57g_pre
2212    
2213    o make lambda[Theta,Salt]ClimRelax spatially varying
2214      (default remains spatially uniform constant based on tau)
2215    o added new control variables
2216      * init. uVel, vVel, etanN
2217      * lambda[Theta,Salt]ClimRelax
2218    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2219      (suggested by G. Forget)
2220    
2221    checkpoint57f_post
2222    o add parameter "baseTime" = model base time = time at iteration zero
2223      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2224      account for baseTime shift
2225    o move Coriolis arrays from PARAMS.h to GRID.h
2226    checkpoint57f_pre
2227    
2228    o mnc-ifying the seaice package
2229    o introduced an alternative length scale calculation for use in the limiting
2230      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2231    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2232    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2233      as well as grad(vort3).  Made it compatible with both approximate form
2234      for the cubed sphere and full form of these gradients.  Added flag
2235      useFullLeith to select between approximate and full form.  
2236    o add "d0" in getcon.F to reduce differences between compilers/platforms
2237      update output.txt of exp. fizhi-gridalt-hs
2238    o change port_rand funtion to allow to set the seed.
2239    o fix obscure MNC bug involving conversion between reals and integers
2240      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2241        new version is now more standards-compliant
2242    o adjoint-related modifications
2243      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2244      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2245      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2246    
2247    checkpoint57e_post
2248    o Adding eddy stress controls a la Ferreira et al.
2249    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2250    
2251    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2252      update output.txt of exp. fizhi-gridalt-hs
2253    o add more "Z" dimensions and associated coordinate vars to MNC
2254    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2255    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2256      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2257      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2258      months and years.  Requires pkg/cal.
2259    o diagnostics: add pickup functionality
2260      - off by default for backwards compatibility
2261      - current version only uses MDSIO -- MNC will be added
2262    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2263    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2264    
2265    checkpoint57d_post
2266    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2267    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2268      output from the diagnostics package
2269    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2270    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2271      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2272    o add coordinate variables to the MNC output from the diagnostics package
2273    o change MNC-flags default value: true when useMNC=TRUE
2274    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2275      the ability (off by default) to read the grid information using MNC
2276    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2277    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2278    o do snap-shot diagnostics at the middle of the time-interval (instead of
2279      at the end).
2280    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2281      new test for AIM with thSIce + slab-ocean
2282    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2283    o move state variable diagnostics to the beginning of the time step ;
2284      (note: still needs some work specially for snap-shot diagnostics)
2285      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2286    
2287    checkpoint57c_post
2288    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2289    o generate new output.txt files on faulks with g77 & the new -ieee option
2290    checkpoint57c_pre
2291    
2292    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2293      update output.txt of exp. global_ocean.90x40x15
2294    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2295      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2296    o add saltFlux(+File) forcing capability with periodicExternalForcing
2297    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2298    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2299    o improvements for the MNC output from DIAGNOSTICS:
2300      - correct handling of the unlimitied dimension
2301      - all dims now have associated coordinate variables
2302      - variables located at U, V, and Corner ("Z") points are now written
2303        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2304        *all* data points are output
2305    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2306    o added pkg/seaice/seaice_monitor.F
2307    o mdsio_readfield.F can now read files visible only to master MPI process.
2308    o pkg/seaice: some test code for ice-modified ocean stress
2309    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2310      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2311      spurious negative numbers for precipitation and humidity.  Will cause
2312      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2313    o pkg/ctrl/
2314      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2315        May be enabled via doPackDiag
2316      *  introduce z-scaling of
2317         + gradient (doZscalePack) and
2318         + control (doZscaleUnpack)
2319    o pkg/mdsio/
2320      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2321      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2322    
2323    checkpoint57b_post
2324    o simplify options in diagnostics_fill arguments (remove weird combinations)
2325    o fix MNC coordinate variables so that they now contain per-face index
2326      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2327      general, EXCH2 grids are only aligned to a "local" coordinate system
2328    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2329    o Implement instantaneous output within pkg diagnostics:
2330      setting a negative frequency in data.diagnostics produces
2331     "snap-shot" output (as opposed to time-average if freq > 0)
2332    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2333      NOTE: change ptracer diagnostics name: use 2 characters to work with
2334            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2335    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2336      becomes the coordinate variable for the 'T' dimension
2337    o add CF-style coordinate variables to MNC
2338      - just a first cut:  numbers are meaningless on the cubesphere and
2339        missing along the T axis but otherwise it works!
2340    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2341    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2342    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2343      this is based directly on what the model compute, so that the content of
2344      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2345    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2346    o clean up build options files for SunOS, in particular
2347      - remove -traditional from xmakedepend
2348      - change -xarch=v9 to -xarch=native for f77
2349      - restore use of make (not gmake)
2350      - add CC=gcc if using g77
2351    o changes per discussion of AM, JMC, & EH3 today:
2352      - move redundant "grid" variables out of "state" -- in preparation of
2353        creating proper CF-style coordinate variables and in recognition
2354        that any/all grid variables can be easily copied (eg. w/NCO) from
2355        the grid files into any of the other NetCDF files
2356      - *always* output grid variables with MDSIO (this will eventually be
2357        changed)
2358      - output MNC grid file if useMNC is true
2359    o every instance of _END_MASTER() has been found and replaced with
2360      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2361      preprocessors
2362    o re-arrange diagnostics pkg initialisation:
2363     - allow each package to extend the available diagnostics list
2364     - add some checking and fix small problems (multi-threaded, ...)
2365     - new S/R diagnostics_fill (replace fill_diagnostics):
2366       look through the short list of active diag. (instead of the long list)
2367       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2368    
2369    checkpoint57a_post
2370    o this set of changes restores TAMC compatibility
2371      tested for global_ocean.90x40x15 adjoint on trough
2372      (what a pain)
2373    
2374    checkpoint57a_pre
2375    o some modifs in tools/build_options for sunos
2376    o call ctrl_pack for ctrl at end for optimcycle=0
2377    
2378    checkpoint57
2379    o add horizontal bi-harmonic viscosity for vertical velocity
2380      - new parameter viscA4W (defaults to viscA4)
2381      - affects only non-hydrostatic code
2382      - to be done: no-slip lateral boundary conditions
2383    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2384    o implement Implicit Vertical advection for pTracers
2385  o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)  o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2386    (implemented also for implicit vertical diffusion & advection)    (implemented also for implicit vertical diffusion & advection)
2387  o OBCS: extend application of tracer open boundary conditions  o OBCS: extend application of tracer open boundary conditions
# Line 11  o add call monitor to TAF set of require Line 2390  o add call monitor to TAF set of require
2390    and include in natl_box_adjoint    and include in natl_box_adjoint
2391  o untangle a few ifdefs related to cost, ctrl, autodiff  o untangle a few ifdefs related to cost, ctrl, autodiff
2392    untangel a few ALLOW_ECCO_OPTIMIZATION    untangel a few ALLOW_ECCO_OPTIMIZATION
2393    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2394      (theta2, salt2 in ecco_cost_weights)
2395    
2396  checkpoint56c_post  checkpoint56c_post
2397  o OBCS as control variables  o OBCS as control variables
# Line 306  o add two new packages Line 2687  o add two new packages
2687    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2688    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2689      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2690      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2691  o add offline package  o add offline package
2692  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2693    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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