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revision 1.742 by mlosch, Wed Nov 1 09:50:43 2006 UTC revision 1.1148 by jmc, Thu Aug 6 14:43:14 2009 UTC
# Line 3  $Name$ Line 3  $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/ebm: add plenty of missing "_d 0" ;
8       update results of experiment global_ocean_ebm (fwd + adjoint tests)
9      Notes: several pieces of code only works for (very) specific set up
10       (domain size, lat range, etc ...); should be documented & stop if one
11       of those assumptions is not meet.
12    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
13       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
14          and offline_exf_seaice (seaicetd + adjoint).
15    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
16       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
17        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
18    o few changes to pass when compiling with strick checking of arguments
19       across S/R (allow to find few bugs in S/R calls).
20    o pkg/seaice:
21     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
22       2d-fields, for slightly better performance
23    
24    checkpoint61t
25    o pkg/seaice:
26     - remove unused variables in seaice_evp
27     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
28    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
29       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
30       each processor opens a different file (a fix from Matt).
31    o cg2d:
32       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
33       this reduces number of EXCH calls by 2 when using exch2.
34       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
35       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
36    o pkg/thsice:
37       add code for Near Infra-Red albedo (from Jeff)
38       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
39    o ini_model_io:
40       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
41       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
42       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
43    
44    checkpoint61s
45    o pkg/exch2 (exch2_rxN_cube*):
46       remove last BARRIER (no need to synchronise after getting data from shared
47       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
48    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
49      and generate new output (for the 2 tests) using default rotationPeriod.
50    o pkg/exch2:
51      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
52        (was already the case with AUTODIFF_EXCH2 defined)
53      - add bj in exch2 arrays and S/R.
54      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
55        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
56    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
57      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
58        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
59      - verification experiment natl_box.longstep
60    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
61      allow different versions of ifort (8 or 9) and different versions
62       of mpi (mpich or mpich2) to be used with the same optfile.
63      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
64       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
65    o pkg/seaice:
66      fix previous modif (3-level field removed) for old-pickup reading
67    
68    checkpoint61r
69    o pkg/seaice:
70     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
71      1. introduce fields for time step (N-1)
72      2. do not use levels 2 and 3 anymore (but keep them)
73      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
74         includes changes to pkg/thsice/thsice_get_velocity.F,
75         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
76         pkg/obcs/obcs_apply_uvice.F.
77     - completely remove code for leap-frog time stepping for second order
78       advection
79     - adjusted adjoint accordingly;
80       gradient checks have improved by an order of magnitude!
81    
82    checkpoint61q
83    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
84     - the boundary conditions along open boundaries are unclear, because the
85       associated masks are set to zero and are thus treated as closed when
86       applying the slip-boundary conditions.
87     - move initialisation of grid variables from seaice_init_varia to _fixed
88    o adding doc/diags_changes.txt
89    o model/src:
90      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
91       to avoid "_diags" naming if no relation to pkg/diagnostics.
92      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
93       file and only call PLOT_FIELD_XYZ if debugMode=T.
94      remove few PLOT_FIELD_XY calls outside initialisation.
95      remove few unnecessary BARRIER.
96    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
97      of salt_plume package in Southern Ocean
98    o pkg/thsice:
99     - fix hOceMxL in overlap (needed for sea-ice advection);
100       update output of experiment global_ocean.cs32x15.icedyn.
101    o pkg/seaice:
102     - make the (placeholder-)tracer IceAge a little more meaningful
103      by avoiding ridging of age due to convergent ice flow
104     - add diagnostics for surface temperature, atmospheric and oceanic
105       heat flux, and atmospheric and oceanic ice growth
106    
107    checkpoint61p
108    o eesupp (global_max & global_sum):
109     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
110     - remove starting & endding barrier (no longer needed)
111    o pkg/mdsio, writelocal:
112       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
113       (remove the STOP): uses shared buffer IO to store data from all threads
114       and then let master-thread write nThreads tiles.
115    o pkg/mdsio (read/write field):
116     - tiled IO done in 1 piece (all levels at a time);
117     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
118     - multi-threaded: allow to read/write local (non-shared) array
119       (was already working with singleCpuIO ; now works also without);
120       => no longer needs barrier call after reading a file (added inside
121       mds_read/write field).
122     - move barrier calls outside gather/scatter_2d to mds_read/write_field
123    o pkg/obcs/exf
124      - exf_getffieldrec.F: add a few ". _d 0" and
125                            add code to catch the case fldperiod = 0.  
126      - obcs_precribe_read.F: change if statements so that they match
127                              the variable type (_RL)
128      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
129        exf_iprec) as part of namelist EXF_NML_01
130    o pkg/mdsio:
131      - read/write tiled (local) files: read/write 1-level tile chunk at a time
132        (instead of segment of length sNx); expected to speed up tiled IO.
133    o pkg/exch2:
134      - take buffer copy from/to array out of S/R exch2_send/recv into new
135        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
136        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
137      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
138      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
139        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
140        including Topology header file (and common blocks).
141      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
142        remove 2nd exch call in exch2_s3d_rx (no longer needed).
143      - document S/R arg. list (+ update some comments)
144    o pkg/seaice:
145      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
146        temperature and humidity over sea ice based on climatological values.
147      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
148        of LSR (this change is expected to change the results slightly because now
149        it uses slightly difference moduli from the second last LSR solution, but
150        that is more consistent with the stress computations; this part of the code
151        is not tested in the verification experiments)
152      - fix diagnostics for flux of ice in case of B-grid
153      - turn strain rates eij and press into global fields within global
154        common block in SEAICE.h for more straighforward diagnostics
155      - fix diagnostics for principal stress components, press, zeta, eta
156        to give something meaning full
157    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
158      new output (all 4 tests) using default rotationPeriod.
159    o pkg KPP:
160      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
161      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
162        and normal grid from 1 to Nr)
163    o Fix computations of L4rdt in mom_calc_visc.F
164    o eesupp:
165      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
166      should be called before a "stop" if we know that all process are going
167      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
168    
169    checkpoint61o
170    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
171    o model/src/ini_curvilinear_grid.F:
172       compute angleSin/CosC when they are not read from a file
173    o pkg/seaice:
174       add pseudo time stepping for LSOR
175    o pkg/exch2:
176       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
177    o pkg/seaice:
178       Adding separate sea ice albedo, drag coefficients, and HO in Southern
179       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
180    o SingleCpuIO:
181       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
182    o pkg/seaice:
183       put exchanged variable in (local) common block for MPI+Multi-Threads
184       to work (necessary with exch1, and for now with exch2 too).
185    o verification: to get more experiments tested with mpi, mth and mpi+mth,
186      change tiling of:
187       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
188       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
189      update output of exp:
190       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
191       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
192      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
193                       (note: output.txt generated on faulks using only 1 tile)
194    o eesupp & mdsio (SingleCpuIO):
195     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
196       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
197       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
198     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
199     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
200       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
201    o pkg/exch2:
202     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
203       read parameter file "data.exch2" if it exists; otherwise try default regular
204       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
205     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
206       with new code (not to be used, just as a backup solution).
207     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
208       in utils/exch2/input.
209    
210    checkpoint61n
211    o eesupp & mdsio (SingleCpuIO):
212      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
213        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
214        receive real*4 array (instead of real*8) to read/write 32.bit files.
215        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
216         and remove new mapping S/R)
217    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
218      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
219        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
220        when using exch2. Add S/R to map global io-buffer to global model array.
221      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
222    
223    checkpoint61m
224    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
225      and add 3 other S/R for other types (R4,R8,RS).
226      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
227    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
228     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
229     - reduce number of macro definitions (keep only those which are used);
230       can always call directly the corrresponding S/R if needed.
231     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
232       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
233     Fixed wrong type of arg in:
234       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
235       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
236     To fix: global_sum of var in common block is wrong (multi-threaded) in:
237       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
238     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
239    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
240      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
241    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
242    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
243      edges are closed (zero depth); might happen with "blank tiles";
244      for now, disabled if using OBCS.
245    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
246      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
247    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
248      to reduce length of 1.D array print in STDOUT.
249    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
250      + use 48 tiles (16x8): this will allow to test "blank tiles".
251    o start to test MPI + multi-threaded (change testreport to skip tests
252      where number of tiles do not match).
253    o genmake2: add option "-omp" to turn on Open-MP ;
254      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
255    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
256      and keep the original tile numbering. Note: compatible with old
257      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
258    
259    checkpoint61l
260    o Overlaps had been forgotten in calculating ijk keys : fixed
261    o fix cyrus makedepend for gcc 4.4
262    o experiment fizhi-cs-aqualev20:
263      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
264      and generate new output. Note: new output is much closer to the old
265      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
266      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
267    o pkg/fizhi:
268     - change to avoid indices going deliberately over array-bounds
269     - remove unnecessary MPI stuff
270     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
271     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
272       does not go over array-bounds and therefore returns reliable output.
273     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
274       this S/R has 4 output arguments, which are used inside "get_alarm";
275       when it is called with the same variable "ndum" in place of several
276       output arguments, this produces weird side effect inside "get_alarm"
277      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
278       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
279       address) and produces error.
280    o tools/gemake2: (March 27-29 2009)
281      with option "-mpi": link *_mpi files from "MODS" dir (this is what
282      testreport does).
283    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
284    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
285       update lab_sea.lsr & lab_sea.salt_plume results
286    o pkg/seaice:
287      Major overhaul of the LSOR solver: change discretization from original
288      finite differences to finite volume. The old routine is still in the
289      file seaice_lsr.F and can be turned on with the CPP-flag
290      SEAICE_OLD_AND_BAD_DISCRETIZATION
291      Along with this change, the discretization of the strain rates is changed.
292      The same flag turns on the old discretization in seaice_calc_strainrates.F
293      All verification experiments with seaice are affected (except for
294      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
295      results by setting the above flag.
296      Further changes involve changes in defaults:
297      - ALLOW_FLOODING is defined and turned on by default
298      - SEAICEadvSnow = .true. is now the default
299      - SEAICEadvSalt = .true. is now the default
300      - SEAICEadvAge  = .true. is now the default
301      - SEAICE_clipVelocities  = .false. is now the default
302                                         (as per J. Zhang's recommendation)
303      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
304        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
305      - seaice_growth: replace computation of UG by a simple copy from wspeed
306    
307    checkpoint61k
308    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
309      seaice_lsr: fixed a few metric terms,
310                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
311                  add more debugging diagnostics
312      seaice_evp: removed superfluous many metric terms of FV discretization
313                  of stress divergence
314                  affects lab_sea, lab_sea.hb87
315      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
316                  of stress divergence for non-evp solver
317                  (this part is not tested anywhere)
318      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
319                  they were effectively only half slip
320                  affects lab_sea.hb87
321      updated all relevant verification experiments (except lab_sea//output_adm.txt
322        which was left over, but fails at level 7 & 6)
323    
324    checkpoint61j
325    o pkg/seaice: turn a few hard wired parameters into run time parameters
326    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
327      time in seconds as promised by the usints in seaice_monitor and exf_monitor
328    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
329      that are not cubed-sphere grids
330    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
331    o pkg/ctrl:
332      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
333    o non-hydrostatic (calc_gw.F):
334      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
335      update output of exp. global_ocean.cs32x15.viscA4
336    o remove backward compatibility for thetaMin,phiMin
337      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
338    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
339      interpolated wind field not only for curvilineargrid=.true., but also
340      for a rotated grid (rotateGrid=.true.)
341    o pkg/exf: add capability to bypass interpolation for runoff
342      by setting yet another CPP-flag
343    o eesupp/src, B-grid exchange:
344      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
345    o autodiff
346      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
347      allows to switch to single-prec common blocks;
348      corresponding switch occurs in tamc.h, integer isbyte
349      TAF store directivs "byte" and "kind" seem equivalent;
350      Most tamc.h have been updated correspondingly.
351    
352    checkpoint61i
353    o autodiff:
354      fix autodiff_sore/_restore indices for obcs
355      (spotted by I. Hoteit, M. Mazloff)
356    o pkg/autodiff, pkg/ctrl:
357      Add flag to reduce all tapelev I/O to single-prec.
358      In data.ctrl set
359        doSinglePrecTapelev = .TRUE.
360    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
361      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
362    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
363      real fresh water flux (not yet)
364    o pkg/mdsio & rw:
365     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
366     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
367    o pkg/flt:
368     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
369       init_fixed & ini_varia.
370     - clean-up & simplify linear interpolation S/R:
371       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
372     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
373     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
374     - add vert. coordinate & horiz. indices to output files.
375     - change vertical position in initial condition, from index to depth [m].
376     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
377       (easier to get to a curvilinear grid) ; delX,delY no longer used.
378    o pkg/ggl90: a few modifications:
379     - fix bottom boundary condition, and interpolation of KappaE
380       near top and bottom
381     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
382     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
383     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
384    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
385      (maintain temporary backward compatibility, until next checkpoint)
386    
387    checkpoint61h
388    o pkg/diagnostics with "periodic averaging diagnostics":
389      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
390    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
391    o pkg/obcs: fix loop ranges for balancing code
392    o pkg/flt:
393     - improve criteria for finding which tile owns a float.
394     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
395    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
396      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
397      with ocean biogeo)
398    o pkg/flt:
399     - do some cleaning and fix the restart ;
400     - add output.txt in flt_example/results to get this pkg tested.
401    o genmake2: add an EXTENDED_SRC option and flag.
402       for now, cannot be turned on on command line (only through genmake_local)
403    o pkg/mdsio: read/write vector:
404     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
405     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
406       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
407     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
408      (drop to 4 digits matching for grad). But this test does not look very
409      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
410    
411    checkpoint61g
412    o pkg/flt:
413      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
414       + make OPTIONS file more standard.
415      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
416      - fix _BYTESWAPIO CPP-Flag
417      - standard reading of file-parameter "data.flt"
418      - fix argument list of S/R FLT_RESTART
419      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
420    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
421    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
422      a still unfixed compiler/optimization bug
423    
424    checkpoint61f
425    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
426      update results of global_ocean.cs32x15.icedyn test.
427    o move getcon.F from model/src to pkg/fizhi.
428    o pkg/exf: add parameter for extrapolation of temp up to the surface
429       and option to prevent negative evap (in bulk_largeyeager04 only).
430    o Prather Advection scheme: fix tracer conservation for divergent flow
431      (e.g., when using NonLin Free-Surface).
432    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
433    o gmredi (Visbeck-variable-K):
434     - add more parameters to Visbeck-variable-K.
435     - use a 5 points average for dSigmaR in Visbeck-K calculation
436       (more "homogenous": same stencil and same weights as in dSigmaH)
437     - update output of ideal_2D_oce experiment.
438    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
439      (#undef REAL4_IS_SLOW)
440     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
441       coordinate variable
442     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
443       (surface forcing fields), removes some of the functionality
444     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
445     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
446       probably not all: copy _RS surface flux fields to RL field before
447       calling DIAGNOSTICS_FILL
448     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
449       real*4 (CALL EXCH_*_RS) versions.
450     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
451       (generate new output).
452    
453    checkpoint61e
454    o gmredi (Visbeck-variable-K):
455      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
456      - change computation of Visbeck-K where Slope > Smax :        
457        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
458        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
459    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
460      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
461    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
462    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
463      does not become too large (to avoid precision problems in implicit-diffusion
464      solver); update ideal_2D_oce output.
465    o pkg ggl90:
466      - in ggl90_cal.F: compute only one set of visc/diff, used to
467        step forward TKE/T/S/momentum
468      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
469        have Prandlt =1)
470    o gmredi (fm07):
471      - add lower limit on Transition layer thickness + lower limit on 1/lambda
472      - allow to set few more params from data.gmredi
473    o pkg ggl90:
474          - add missing sqrt(2) factor in computation of mixing length
475            scale in ggl90_calc.F
476            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
477    
478    checkpoint61d
479    o adjoint modifs
480      - adapt to new field rhoInSitu
481      - allow to revert from StoreDynVars2D, StoreDynVars3D
482        to individual fields
483        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
484    o store 3-D (in-situ) density in commom block (DYNVARS.h)
485     - save 1 rho computation.
486     - no longer modify T & S inland when using down_slope pkg.
487    o gad_som : allow to switch to SOM advection for T & S without corresponding
488      pickup files (using new S/R: MDS_CHECK4FILE).
489    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
490      (for useSingleCpuIO to work in multi-threaded)
491    o pkg/shelfice:
492     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
493       with SHELFICEtopoFile in data.shelfice
494     - move code for reading ice shelf topography and modifying hFacC into separate
495       subroutines of the shelfice package
496     - separate initialisation of "fixed" and "variable" variables
497     - kTopC is not (yet) replaced by kSurfC, although this is possible
498    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
499    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
500      and rename:
501      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
502      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
503    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
504    
505    checkpoint61c
506    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
507      to add mass source/sink of fluid in the interior (3-D generalisation
508      of oceanic real-fresh water flux).
509    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
510    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
511    o new pkg: down_slope
512      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
513      - presently, modify T & S inland (dwnslp_calc_rho.F).
514        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
515      - implementation for ocean in P-coords not tested.
516      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
517    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
518      (to facilitate conversion of oceanic pkg to p-coordinate).
519    o change FIND_RHO to FIND_RHO_2D :
520      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
521    o new pkg: cheapaml
522    
523    checkpoint61b
524    o exch2:
525      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
526      - no longer depend on the order sequence (N,S,E,W).
527      - 3rd exchange no longer needed (tested with 24 tiles).
528      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
529      - exch_UV_A-grid readily available (but not yet tested).
530      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
531      (both are no longer needed) in exch_uv: no effect in forward run; but
532       get truncation error differences with adjoint exch.
533    o exch2:
534     - change index-bounds storage (moved from target to local tile,
535       more intuitive this way) ; rename/remove some variables.
536     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
537    
538    checkpoint61a
539    o exch2/matlab-topology-generator:
540      fix bug in index bounds for N-S internal exchange (hard to tell if this
541      had any effect on the solution).
542    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
543      is exceeded
544    o testreport: modify syntax of awk, so that it works also with
545      awk, and not only with nawk and gawk
546    
547    checkpoint61
548    o autodiff
549      Change default for TAF usage by removing argument '-nonew_arg'
550      This changes TAF subroutine argument list (ordering of active var.)
551      Omission of this flag leads to incompatibility w.r.t. TAMC
552      To restore TAMC-compatibility, need following modifs:
553      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
554      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
555      Tested TAF version is 1.9.22
556      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
557    
558    checkpoint60
559    --->>> This is the last checkpoint for which generating the adjoint
560    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
561    --->>> by default.
562    --->>> Future checkpoints will ommit this flag by default.
563    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
564    o pkg/grdchk: Add gradient check to etan0 perturbations.
565    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
566    o pkg/autodiff: more flexibility in zeroadj.
567      model/src: modifying do_oceanic_phys.F accordingly.
568    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
569    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
570      special setup of gmredi for which the adjoint is stable
571      enough for parameter optimization.
572    o bridging the gap between eddy stress and GM.
573      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
574          along with a change in CPP option (now ALLOW_EDDYPSI).
575      -> when using GM w/ GM_AdvForm:
576          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
577          is applied either in the tracer Eq. or in momentum Eq.
578          depending on data.gmredi (intro. GM_InMomAsStress).
579      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
580      The key modifications are in model/src/taueddy_external_forcing.F
581      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
582    
583    checkpoint59r
584    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
585      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
586      fix option to read coriolis(@ cell-corner) from files with CS-grid.
587    o pkg/mnc: add some attributes to standard 1D-coordinate variables
588    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
589      mass points, when using mnc for output
590      - add runtime parameter (missing_value, missing_value_int) to override
591        default (which is the value of getcon('UNDEF'))
592    o pkg/mnc: prepare mnc for the actual use of missing values with the
593      diagnostics package: small fix in mnc_cw_readwrite.template and more
594      initialisation of never used fields
595      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
596      versions
597    o pkg/thsice/thsice_ini_vars.F added default initial values so that
598      thermodynamics sea ice solver does not blow up when some initial fields
599      are missing.
600    o move from external_forcing_surf.F to ini_forcing.F
601      the p-coord. hack consisting in using pLoad to set phi0surf ;
602      update output of tutorial_global_oce_in_p (affected @ truncation level).
603    o Freshen up a bit hs94.1x64x5, notably:
604      remove rotationPeriod and tRef=5*0. (adjoint only), and add
605      exactConserv=.TRUE.
606    o pkg/generic_advdiff:
607      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
608      applies to files where Temperature & Salinity 2nd Order moments are used.
609    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
610      this uses a dynamically allocated internal state data structure
611      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
612      and requires a fortran 90 compiler
613    
614    checkpoint59q
615    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
616       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
617    o Refresh tutorial_global_oce_biogeo, notably:
618      - change bathymetry (put back seamounts in ACC, use hFacs)
619      - change EOS (POLY3 --> JMD95Z)
620      - use Bryan-Lewis vertical diffusivity
621      - use multidimensional advection
622      - remove old virtual virtual in dic pkg, now done through ptracer pkg
623      - change a couple of parameters in dic pkg
624    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
625    o pkg/obcs: change default to OBCSfixTopo = .true.,
626      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
627      - replace "debugMode" with "debugLevel .GE. debLevB"
628    o implementation of TAF directives for gchem,cfc,dic
629    o remove "exp5" (replaced by tutorial_deep_convection).
630    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
631      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
632      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
633      --> changes results in exp4, seaice_obcs
634    o tutorial_deep_convection :
635      update the set-up and increase resolution and domain size ; start
636      from pseudo initial conditions = output at t=120mn in order to see
637      something happening when running testreport.
638    o pkg/seaice: add os7mp as an advection scheme
639                  add check for advection schemes
640                  add a flag for restoring T and S underneath sea ice
641    o pkg/my82: add netcdf-support and diagnostics
642    o thsice pkg:
643      - Now hsMax limits snow height by turning it into ice following
644        flooding scheme (and now conserving energy)
645      - Slight rewriting of the formula in thsice_calc_thick.F
646      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
647      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
648    
649    checkpoint59p
650    o gchem / dic / cfc :
651      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
652      - add new parameter files: "data.dic" & "data.cfc" ;
653      - various re-arrangement in initialisation & header file ;
654      - fix tutorial_global_oce_biogeo for multi-threaded test.
655    o pkg/dic: test for "pickup_dic" file when restarting ;
656      if no pickup-file, can restart with a re-initialised pH (same as it did
657      before) providing pickupStrictlyMatch is set to False.
658    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
659      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
660    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
661      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
662    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
663     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
664       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
665    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
666       scheme to use for vorticty-term ;
667     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
668       (with default selectVortScheme, return to original discretisation)
669     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
670    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
671    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
672      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
673      also fix diagnostics VISCAHW & VISCA4W.
674    
675    checkpoint59o
676    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
677    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
678      move a few statemens out the main loop into separate loops
679    o pkg/shelfice:
680      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
681        (kg/m^2/s), does not break tests, because in verification/isomip,
682        rhoConstFresh=rhoConst (by accident)
683      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
684      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
685        new file model/src/seawater.F, so that they are available for all pkgs.
686      - convert potential temperature into in-situ temperature. This changes the
687        isomip tests => update tests
688    o add a flag writePickupAtEnd (default=true) to be able to suppress
689      writing a pickup at the last timestep
690    o tools/mpack-1.6 :
691      - disable automake (not working) and autoconf (not needed).
692      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
693        also cleaner with much less compilation warnings.
694    o pkg/profiles:
695      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
696      (for "less than 32 characters name" compiler requirement)
697    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
698      conditions that have a different sampling frequency than S/T/U/V obcs
699    o pkg/diagnostics (stats-diags):
700      - fix global Min/Max in case 1 processor get only empty tiles
701    o genmake2: replace (4 times)
702         make genmake_tc_1.o >> genmake_warnings 2>&1
703      with
704         COMM="$CC $CFLAGS -c genmake_tc_1.c"
705         echo $COMM >> genmake_warnings
706         $COMM >> genmake_warnings 2>&1
707      to make genmake2 always see the value of CC as specified in the optfile.
708    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
709      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
710      - modify verification advect_cs test to test SOM-advection on CS-grid.
711    o pkg/ctrl:
712      - Rewrite of ctrl_map_ini_ecco.F,
713        introducing a generic routine (ctrl_map_ini_gen.F).
714      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
715    
716    checkpoint59n
717    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
718      number in dedicate array "hdiag":
719      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
720        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
721      - many small changes (integer format) for large number of diagnostics
722      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
723        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
724    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
725      usingSphericalGrid, this allows to define the rotated grid coordinates
726      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
727      geographical coordinates according to the inverse of the rotation defined
728      by the Euler angles, so that Coriolis parameter and online-interpolation by
729      exf works with the geographical coordinates on XC/YC/XG/YG.
730      Naturally, this feature does not work with all packages, so some
731      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
732      profiles), because there the coordinates are assumed to be regular
733      spherical grid coordinates.
734    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
735      - introduce isopycnal diffusion coefficient control.
736    o tools/adjoint_options:
737      - additional control vector components.
738    o pkg/mnc: have mnc create marginally meaning full coordinate variables
739      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
740    o pkg/mypackage:
741      - add example of read/write pickup for state-var ;
742      - add entry points to the main code for state-vars diags & write-pickup.
743    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
744      transitions for useExfYearlyFields
745      - add new subroutine that determines the file to read from for
746        use*YearlyFields = .TRUE. and .FALSE.
747      - add a verification experiment to global_with_exf that tests
748        useExfYearlyFields with USE_EXF_INTERPOLATION defined
749    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
750      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
751      subroutines (which could be generated from a template, because they are
752      almost identical), for now they are included in obcs_prescribe_read.F for
753      simplicity
754    o pkg/exf:
755      - add a little more diagnostic to exf_interp_read (in analogy to
756        mds_read_field, can be turned off with debugLevel < debugLevA=1)
757      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
758        ugly but fast by unrolling short inner loops, inserting a unroll=8
759        directive in routine lagran, and splitting a loop and making do while the
760        outermost loop (the latter requires the intoduction of index arrays)
761    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
762    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
763      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
764    o verification/seaice_obcs: updated for restart test and latest options
765    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
766      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
767      for now this is only available for the C-grid code and also within
768      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
769    
770    checkpoint59m
771    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
772      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
773    o gad_som : fix flux output (& diagnostics) to have same units as other  
774      advection scheme fluxes (was previously multiplied by deltaT).  
775    o added verification/seaice_obcs both to test seaice open boundaries
776      and to provide an example matlab scrpt for generating them
777    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
778    o pkg/salt_plume: clean up salt_plume_frac.F to
779      remove redundancy in PlumeMethod 1 and 4
780    o pkg/kpp: added saltplume diagnostics
781    o pkg/obcs and pkg/seaice:
782      - do not set uice and vice to zero when OB*icefile are unspecified
783      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
784      - moved seaice tracer obcs after call to seaice_growth
785    o pkg/salt_plume: added various options for salt plume depth
786      criterion and for vertical distribution of the salt
787    
788    checkpoint59l
789    o pkg/ptracers: new version of ptracers pickup:
790      read meta file and write only fields which are needed to restart.
791      ( same logic as main pickup file ; also using pickupStrictlyMatch )
792    o pkg/seaice:
793      - add timescale for melting due to warm mixed layer as a means of
794        setting SEAICE_availHeatFrac more conveniently
795      - add a CPP-flag/runtime parameter check for flooding algorithm
796      - reformulated availHeat in seaice_growth.F to be independent of AREA
797    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
798      unit changes
799    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
800    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
801      SX vector computer.
802    o pkg/seaice:
803      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
804        seaice forcing fields can now be read only through pkg/exf
805      - removed some unused halos
806    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
807    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
808      or U/VICE from U/VWIND before computing U/VSTRESS
809    
810    checkpoint59k
811    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
812      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
813    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
814      all experiments pass when compile with un-initialised var. checking option.
815    o added pkg/salt_plume
816    o script to test restart (for now, in MITgcm_contrib/jmc_script)
817    o pkg/seaice: new read/write pickup version.
818      read meta file and write only fields which are needed to restart.
819      ( same logic as main pickup file ; also using pickupStrictlyMatch )
820    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
821    o lab_sea.hb87: modify the domain & update output.hb87.txt :
822      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
823      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
824      process. Fixed here by closing the domain at the Northern boundary.
825    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
826    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
827      a set of consecutive levels in/from a 3-D array.
828    o pkg/ptracers:
829      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
830      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
831    
832    checkpoint59j
833    o in pkgs: dic, obcs, offline, rbcs:
834      standard way to compute coeff. for time interpolation between 2 time reccords
835      which retains full precision (& make results less dependent on compiler).
836      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
837    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
838      packages instead of reading ice cover and wind speed separately
839    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
840     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
841      to allow to compile customized code before the update)
842    o cleaning-up:
843      - fix CPP instruction syntax in pkg/obcs
844      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
845        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
846      - fix some threads issue in IO parts.
847    o pkg/dic:
848      - add tons of "_d 0" (--> much better testreports !)
849       and then update outputs of tutorial_global_oce_biogeo
850    o pkg/mom_fluxform:
851      add a special version of momentum advection intended to conserve momentum
852      next to a bathymetry step or a coastline edge. (default = off = #undef)
853    o new read/write pickup version:
854      - for now, only implemented for main (mdsio) pickup file.
855      - write out only what is needed to restart; merge pickup_nh , pickup_ph
856        and main pickup together.
857      - read meta file; read only what is needed to restart; stop if a field
858        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
859        if it make sense (even if the restart is not perfect).
860      - if no meta file, assume that pickup to read corresponds exactly to
861        a pickup that would currently be written.
862      - read pickup written in the old format (until checkpoint59i) if it
863        recognizes an old meta file (no field-list).
864      - add a meta file in exp. which starts from a pickup: 2 cases:
865        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
866         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
867        b) a meta file describing the content of the associated pickup file
868         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
869    o pkg/mdsio & pkg/rw:
870      - new routine to read a meta file ; new set of routine to read
871        Multiple-fields file (with meta file).
872    o added open boundary conditions capability for seaice
873        HSNOW, HSALT, UICE, and VICE
874    
875    checkpoint59i
876    o adjoint:
877      * fix multiDimAdvection adjoint
878        (partial recomputation problem by TAF for fVerT(:,:,kDown)
879        and comlev1 size definition (maxpass vs. max. number of tracers)
880      * verification/global_ocean.90x45x15 adjoint now tests
881        NLFS and multiDimAdvection using DST3 (=30)
882      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
883    o pkg/kpp: add "_d 0" to real constant (if missing);
884      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
885      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
886    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
887      for internal parameters related to restart process (formerly from PARAMS.h)
888      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
889    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
890      as argument. (only atm2d & obcs write_pickup have not yet been updated)
891    o pkg/monitor:
892      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
893      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
894      - account for deep Atmosphere factor and density factor (anelastic)
895    o added open boundary conditions capability for seaice HEFF and AREA
896    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
897      thermodynamics
898      - requires a little reorganization, which affects the testreport results
899        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
900        so that now the conservative form is tested
901      - add a few comments
902    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
903    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
904    o add new diagnostics to seaice: advective, diffusive fluxes (only for
905      multidim-advection, for scheme 2 they are not filled) and transports,
906      thermodynamic growth rates
907    o change units of EmPmR (inside the code, + within coupling interface)
908      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
909      Affects results @ truncation level (cg2d match) and update output of
910       experiments: lab_sea(6), global_ocean.90x40x15(10),
911      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
912      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
913      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
914      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
915    
916    checkpoint59h
917    o pkg/exf:
918      - improve vectorization by moving if-statement out of loops in
919        exf_mapfields, exf_radiation
920      - exf_bulkformulae.F: introduce 2D fields and vectorize code
921    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
922    o testreport:
923      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
924        monitor & update offline_exf_seaice exp. output.
925      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
926    o pkg/seaice:
927      - bug fix in the evp solver: boundary conditions were affected be
928        masking of zMax/zMin (changes results)
929      - minor bug fix in boundary conditions in seaice_calc_strainrates
930        (changes results for no_slip)
931      - seaice_lsr.F: make interpolation of eta dependent on boundaries
932      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
933      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
934        stress formulation and no-slip boundary conditions
935    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
936      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
937    o pkg/seaice: a first HSALT time stepping equation has been checked in
938    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
939      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
940      without requiring DO-IF statements
941    o pkg/thsice:
942      use continuous power-law function for partition of energy between lateral
943      melting/freezing and thinning/thickening ; old code using step function
944      still available with #undef THSICE_FRACEN_POWERLAW
945      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
946    o testreport: change AD testing : check against results/output_adm.txt
947      using same scripts as for forward test.
948    
949    checkpoint59g
950    o adjoint testing: in preparation for changing testreport:
951      - output format: cost and grad written on separated lines
952      - ad output results in directory "results" (instead of "results_ad")
953    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
954    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
955    o pkg/ecco: allow user defined cost function contributions
956    o testreport:
957      Allow to choose (per experiment) the list of tested output variables
958       and the main variable (used to issue a pass/FAIL ) ;
959      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
960      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
961      Also modify printing of summary:
962       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
963       b) echo the list of tested variables in the individual summary.txt of
964          each experiment.
965    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
966      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
967      (but still depend on the tile decompostion of the domain).
968    o pkg/seaice: change a discretization detail to make the B-grid code
969      "more symmetric". This change is likely to remove all "ridges/leads" that
970      where quasi-aligned with the grid in B-grid solutions. It may also be
971      the solution to the stress coupling issues with the B-grid.
972    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
973      remove .cvsignore from input dir. (since testreport no longer run here).
974    o pkg/thsice:
975     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
976     - fix reshaping of sea-ice just after advection:
977       melt all the ice only if ice-volume is too small.
978     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
979       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
980     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
981    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
982      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
983    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
984      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
985      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
986      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
987      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
988      -> update output.txt
989    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
990     this affects truncation error: -> update output.txt of exp:
991      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
992      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
993    
994    checkpoint59f
995    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
996    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
997      a bounded range (in forward mode)
998    o pkg/ecco, ctrl, autodiff and mom_common:
999     internal parameter controls, completements of implementations
1000    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1001    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1002      (not seem any difference in testing results).
1003    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1004       at face corners.
1005    o pkg/generic_advdiff:
1006     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1007      loop range indices for computing vertical advection tendency
1008      and do the calculation in the interior only (no overlap) ;
1009      for now, only implemented for SOM advection (to save CPU time).
1010     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1011    o exch2 adjoint
1012      First set of changes:
1013      - add exch2 hand-written adjoint templates
1014      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1015        This will require cleanup in pkg/autodiff/*.F
1016        (changed routines currently kept separate in verif. code/)
1017      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1018        that used to hide exch2 or cubed-sphere specific code
1019        (commented via 'cph-exch2')
1020    o pkg/seaice
1021      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1022    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1023       output of global_ocean.cs32x15.thsice .
1024    
1025    checkpoint59e
1026    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1027      for B-grid vector (not yet tested) and C-grid vector (<- only used
1028      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1029    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1030      (#ifdef ALLOW_SALT_PLUME)
1031    o gather_2d/scatter_2d: removed halo regions
1032    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1033      scheme and the corresponding test case (under front_relax dir). For now,
1034      only available with Skew-flux form and not yet tested in realistic set-up.
1035      adjoint: store directives updated, but gradient checks deteriorated,
1036      so maybe GM/Redi adjoint is now broken.
1037    o seaice adjoint
1038      * add AREA, HEFF, HSNOW as control variable
1039        (should not change lab_sea results)
1040      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1041    o pkg/seaice:
1042      * added computation of saltFlux in seaice_growth;
1043        For time being, sea ice salinity is assumed constant
1044        contribution of snow flooding to freshening of sea ice is neglected.
1045        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1046        defaults to 0.0 in order to maintain backward compatibility.
1047        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1048      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1049      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1050        heat content used to melt or grow ice
1051      * commented out cap of HICE: it helps keep ice thinner
1052      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1053      * applied OBCS T/S mask to HEFFM sea ice mask
1054    
1055    checkpoint59d
1056    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1057     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1058     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1059    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1060     and change default value of parameter "GM_Small_Number";
1061     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1062       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1063       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1064    o pkg/ecco: cost function when applying pkg/smooth to controls
1065    o pkg/ctrl: add forcingPrecond run time parameter
1066    o pkg/seaice:
1067     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1068     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1069       changes verification/lab_sea
1070     - rearrange implicit part of u-equation in LSR solver to make it easier to
1071       read, understand, and debug. This causes changes at the truncation level.
1072     - fix (serious) bug in the boundary conditions (sign error in the implicit
1073       part) of the LSR solver. Changes all LSR results.
1074     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1075       is initilized with small values - does not change lab_sea results.
1076     - added HsnowFile initialization capability
1077    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1078     initialization of pkg/smooth and application to control vector
1079    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1080    o dependencies: pkg/profiles requires pkg/cal
1081    o pkg/profiles:
1082     - added option ALLOW_PROFILES_GENERICGRID
1083         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1084         that interpolation information (grid points and coefficients) is provided
1085         within the netcdf input files.
1086         -> sample matlab scripts can be found in MITgcm_contrib/gael
1087         that allow you to prepare netcdf input files.
1088     - also modified: cleaner include statements, cleaner error print statements,
1089       cleaner stops when error, and more tests of the netcdf input files consistency.
1090    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1091    o pkg/seaice:
1092     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1093       requires a new routine: seaice_diagnostics_fill.F
1094     - make sure that seaice does not move if not forced (pressure replacement
1095       method, Hibler and Ip, 1995), changes results
1096     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1097     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1098       It is turned off by default (=-1.), because it changes the results.
1099     - make it possible to read AREA from a file, too.
1100    
1101    checkpoint59c
1102    o add S/R and diagnostics for oceanic mixed-layer depth
1103    o move GMRedi call after all vertical mixing schemes (including KPP)
1104    o pkg/thsice:
1105     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1106      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1107    o pkg/obcs:
1108     - bug fix for balance code
1109    o pkg/seaice:
1110      - allow values of SEAICE_elasticParm > 1
1111      - add new parameter SEAICE_evpTauRelax as an alternative
1112        to SEAICE_elasticParm
1113      - make lsr boundary conditions free slip (by default), changes result
1114      - add code for no slip boundary conditions for lsr
1115      - set minimum of zeta to zero (and not 4e8) (changes results)
1116      - add a cap on AREA after advecting AREA if seaice_growth is not called
1117    o change calculation of Visbeck K:
1118      - no longer depend on tapering scheme; instead, compute slope (limited
1119        by GM_maxSlope). this is equivalent to what was comuted before with
1120        clipping or linear tappering.
1121      - fix vertical averaging (wrong by 1/2 level)
1122      - leave the old version (but will not be maintained) within
1123        #ifdef OLD_VISBECK_CALC / #endif
1124      - update output of exp. ideal_2D_oce
1125    o change error catch in calc_r_star to improve vectorization
1126    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1127      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1128    o adjoint:
1129      Re-organized adjoint checkpointing according to Matt Mazloff
1130      (but with modifs/completions/cleanups)
1131      Storing is now bundled into large arrays to optimized I/O
1132      (and second step in cleanup of the_main_loop)
1133    
1134    checkpoint59b
1135    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1136      - export/import (between ocean & coupler) fields needed for ocean DIC.
1137    o pkg/seaice:
1138      - get rid of three more exchanges seaice_calc_viscosities (required
1139        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1140      - bug fix in seaice_ocean_stress (update of lab_sea required)
1141      - reduce loop boundaries to necessary minimum also in seaice_evp
1142      - go back to the old way of computing deltaC/Z as the adjoint likes that
1143        better
1144    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1145      passive tracer to an Age Tracer) + update output.txt
1146    o pkg/exf:
1147      - implement A-grid / C-grid selection for wind-stress input files.
1148      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1149      for now, in exf_bulk_largeyeager04.F only :
1150      - change implementation for case where windspeed + 2. components wind-stress
1151        are read-in. AND use rhoConstFresh to convert evap.
1152    o pkg/seaice:
1153      - use correct EXCH_UV for wind-forcing (on A-grid).
1154      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1155        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1156    o pkg/exf:
1157      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1158      EXF_INTERPOLATION:
1159      - merge global_with_exf/code version of exf_interp_read.F
1160        to the main code ;
1161      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1162        reading the file ; Important: This options needs to be defined to recover
1163        previous code.
1164        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1165      - no longer loose real*8 precision along the way when using exf_iprec=64.
1166    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1167      - change discretisation of evp-solver in order to avoid another exchange
1168        (changes lab_sea) and clean up a little
1169      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1170        help the adjoint (this also changes the results slightly)
1171      - add a few "_d 0" where they had been missing in seaice_evp.F
1172      - cleaning up: remove unused seaice_calc_rhs.F
1173    o pkg/exf: some cleaning-up:
1174      - change various "constants" into runtime parameters
1175      - cleaned-up Large&Yeager04 routine which should eventually
1176        replace exf_bulkformulae.F (changed names of S/R and CPP)
1177        and merged various ALLOW_ATM_WIND options
1178     only used with thsice pkg (in thsice_get_exf.F):
1179      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1180        which are used when useStabilityFct_overIce=TRUE (= the default)
1181      - change default values of ice & snow emissivity and scale downward LW
1182        by ice & snow emissivity.
1183    o pkg/thsice:
1184     fix few little problems, in thsice_calc_thickn.F:
1185      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1186      - melt only laterally if hIce < hThinIce (as the comments say)
1187      and in thsice_extend.F:
1188      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1189      - start to form ice as soon as the minimum ice-volume is reachable.
1190     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1191      and cpl_aim+ocn
1192    o pkg/kpp
1193     - move computation of surface related input fields to KPP into a new
1194       subroutine kpp_forcing_surf.F
1195     - remove wrong (within bi,bj loops) EXCH calls.
1196     - little cleaning (add argument myThid in last position, cvs header ...)
1197     - for now, fix conservation problem by exchanging KPPviscAz (may not
1198       be the best fix)
1199    o pkg/seaice
1200     - check for inconsistent evp parameter/cpp-flag combination
1201     - remove leftover errIO flat for obsolete name list error handling
1202    o OpenAD
1203     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1204    
1205    checkpoint59a
1206    o pkg/seaice: some parameter clarifications and a little bit of clean up
1207    o pkg/thsice: rename run-time parameters:
1208       himin       -> hIceMin
1209       himin0      -> hThinIce
1210       hihig       -> hThickIce
1211       i0          -> i0swFrac
1212       transCoef   -> bMeltCoef
1213       frac_energy -> fracMelting
1214      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1215       with default values (for now) that do not change the results.
1216      remove old version of thsice vars advection in pkg/seaice.
1217    o in FFIELDS.h:
1218      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1219      - make pLoad & sIceLoad always available (but still only used if
1220         ATMOSPHERIC_LOADING is #define).
1221    o pkg/kpp: replaced _KPP_RL with _RL
1222    o bug fixes for vertical diffusivity computations when both KPP and
1223        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1224        are no longer updating the vertical diffusivity array
1225        (passed as argument) but are (re-) setting those arrays.
1226    o pkg/seaice: fix bug in evp solver, while doing that
1227      - change (improve?) discretization of stress computations for both
1228        cgrid-lsr and evp solver
1229      - add a new routine to compute strain rates
1230      - the above changes lab_sea results
1231      - add no slip conditions for evp solver (off by default), lsr-version
1232        may follow
1233      - fix exchange for shear at Z-points (does not change lab_sea)
1234      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1235        (to force the user to pick a time step since there is not "safe" way
1236        of choosing it)
1237      - add principal stress diagnostics
1238      - rearrange fields for evp a little to avoid having to call a: too many
1239        exchanges and b: exchanges for stress trensor components which we do
1240        not have.
1241      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1242        of evp, complete rewrite for lsr case (latter is does not yet work
1243        in all cases)
1244    o pkg/kpp: add code to have mixing in shelf ice caverns
1245      - add myThid to all kpp routines (long overdue)
1246    
1247    checkpoint59
1248    o pkg/exf:
1249      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1250        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1251      - move exf header files from lower_case.h to UPPER_CASE.h ;
1252        add missing cvs Header & Name
1253      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1254      - add namelist param. selectStressGridPosition, exf_monFreq
1255      - retire many _CLIM routines, and remove data.exf_clim
1256        + params moved to data.exf
1257        + climsst, climsss now handled by exf_set_gen, i.e.
1258          climss?period=0 refers to constant field,
1259          climss?period=-12 to monthly forcing
1260      - split up namelists in data.exf
1261    o pkg/seaice:
1262      - remove seaice_exch and seaice_exch_uv
1263      - remove superfluous exchange of theta
1264      - add myThid to seaice_budget_ocean/ice
1265      - add new interface for atmospheric wind forcing (C-grid only)
1266        + new routine
1267        + two new field (taux, tauy for stress over ice)
1268        + removed one global field (DAIRN) for C-grid case only
1269    o pkg/thsise
1270      - 2nd set of modifs for thsice adjoint in conjunction with exf
1271    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1272    
1273    checkpoint58y_post
1274    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1275      vertical diffusivity, similar to that in MOM4; turned on using
1276      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1277      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1278    o Added capability for 3D specification of background vertical diffusion
1279      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1280      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1281      "data" file that contains the 3D vertical diffusivity coefficients.
1282    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1283      - add code within pkg thsice to advect & diffuse sea-ice fields
1284      similar to (and will replace) what has been added in  seaice_advdiff.F,
1285      but: - conserving Mass, Heat & Salt.
1286           - better when using non-linear advection scheme (not yet fully tested)
1287           - can also be used in atmospheric set-up (for now, only the diffusion).
1288    
1289    checkpoint58x_post
1290    o IO option for global-file compact format:
1291      - add options when generating topology (utils/exch2/matlab-topology-generator)
1292      - add I/O capability (pkg/mdsio).
1293      - adapt utils/matlab/rdmds.m to read this format.
1294      for now long-line format not yet supported by pkg/mdsio (& exch2).
1295    o shelfice: add a few diagnostics
1296    
1297    checkpoint58w_post
1298    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1299      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1300      (and replace horiVertRatio in NH code).
1301      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1302                         and tutorial_plume_on_slope (sensitive to truncation)
1303    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1304      directly to drive seaice model (C-grid only)
1305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1306     - reintroduce computation of wind from stress,
1307     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1308       mass points to avoid tau = 0
1309     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1310    o rdmnc.m: make it work with "global" files created with gluemnc
1311    o rdmnc.m : some improvements in dealing with singleton dimension
1312      (tested on all testreport mnc output files).
1313    o genmake2: disable pkg/profiles if netcdf test fails.
1314    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1315    o move call to cal_readparms up to make calendar parameters/variable available
1316      to all packages
1317    
1318    checkpoint58v_post
1319    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1320      useDynP_inEos_Zc tested.
1321    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1322    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1323      and portions thereof.  See read_cs.txt for description and examples.
1324    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1325      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1326      following the great-circle arc between those 2 points.
1327    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1328      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1329    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1330     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1331     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1332     - still needs work (not working with some options ; efficiency to improve)
1333       and serious testing.
1334     - use this scheme for temperature & salinity in 2 advection test exp.:
1335       advect_xy & advect_xz, respectively.
1336    
1337    checkpoint58u_post
1338    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1339    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1340    o testreport: add option "-skipdir" to skip some test.
1341    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1342      momentum calculation.
1343    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1344    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1345      remove checkpoint.F and the_correction_step.F (no longer used);
1346      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1347    o add option (linFSConserveTr) to correct for tracer source/sink due to
1348      Linear Free surface
1349    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1350    o pkg/thsice: fix reading mnc-pickups
1351    
1352    checkpoint58t_post
1353    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1354    o pkg/mdsio:
1355     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1356       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1357       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1358     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1359     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1360       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1361     - new S/R (to replace MDSWRITEMETA), which allows to write more
1362       informations (variable names, time ...) to meta files.
1363     - modify rdmds.m to give back the meta file content.
1364    o pkg/diagnostics: change vertical interpolation to be safer, and more
1365       flexible (define p-levels to interpolate to in data.diagnostics);
1366      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1367       diagnostic pointer.
1368    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1369    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1370    o fix multi-category seaice:
1371     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1372       SEAICE_MULTICATEGORY
1373     - fix short wave heat flux
1374    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1375       and allow to use EVP solver. Change forward lab_sea: test both EVP
1376       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1377    o Initial check-in of lab_sea adjoint
1378      (very similar to natl_box_adjoint/code_seaice)
1379      * used C-grid and EVP solver
1380      * used KPP, GM/Redi
1381      * uses inAdExact=.TRUE.
1382      * gradient checks fail for both ADM and TLM
1383        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1384        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1385        issue is related to forward mismatch between g77 an ifort
1386    o pkg/seaice: overhaul of thermodynamics
1387     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1388     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1389     - move a few global fields out of SEAICE.h into seaice_growth.F and
1390       make them 2D (FICE/QNETO/ ...)
1391     - remove FO (it is the same as QNETO)
1392     - introduce a few local fields to avoid modifying external fields such
1393       as atemp, etc.
1394    
1395    checkpoint58s_post
1396    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1397      changed exf_set_gen.F so that
1398        genperiod=0 means input file is one time-constant field and
1399        genperiod=-12 means input file contains 12 monthly means
1400    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1401      this affects truncation error ; generate new output file for exp. which
1402      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1403        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1404        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1405        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1406        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1407        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1408    o start implementation of deep-atmosphere and anelastic formulation
1409    o verification: remove 2nd copy of input files and use script "prepare_run"
1410      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1411    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1412    o profiles: fix for multithreaded case
1413    
1414    o diagnostics: rename few diags:
1415      s/'PRESSURE'/'RCENTER '/g
1416      s/'TICE    '/'oceFreez'/g
1417      s/'TAUX    '/'oceTAUX '/g
1418      s/'TAUY    '/'oceTAUY '/g
1419      s/'SWFLUX  '/'oceQsw  '/g
1420      s/DIFx/DFxE/g
1421      s/DIFy/DFyE/g
1422      and add few ocean-forcing diagnostics:
1423      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1424    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1425      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1426      as actual snow thickness.  It now refers everywhere to effective snow
1427      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1428    
1429    checkpoint58r_post
1430    o modifications to pkg/seaice/growth.F, which change results of
1431      lab_sea experiment: fixes pertain to melting snow over open water, to
1432      masking EVAP under sea ice, and to using the correct AREA variable for
1433      computations of EVAP, PRECIP, HSNOW, and GHEFF
1434    o add ability to read bathy, salt, and theta using MNC (off by def)
1435  o add flooding algorithm and advection of HSNOW for pkg/seaice;  o add flooding algorithm and advection of HSNOW for pkg/seaice;
1436    both are turned off by default and do no change any results    both are turned off by default and do no change any results
1437  o seaice advection with pkg/thsice: a step toward the use of non-linear  o seaice advection with pkg/thsice: a step toward the use of non-linear
# Line 1275  o add two new packages Line 2704  o add two new packages
2704    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2705    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2706      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2707      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2708  o add offline package  o add offline package
2709  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2710    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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