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revision 1.617 by mlosch, Thu Mar 2 16:10:08 2006 UTC revision 1.1150 by mlosch, Tue Aug 11 08:07:52 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs:
8      change OB?eta from _RS to _RL and put them into a separate commen block
9    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
10      create a meaningful unit attribute for the time coordinate variable
11    o pkg/ebm: add plenty of missing "_d 0" ;
12       update results of experiment global_ocean_ebm (fwd + adjoint tests)
13      Notes: several pieces of code only works for (very) specific set up
14       (domain size, lat range, etc ...); should be documented & stop if one
15       of those assumptions is not meet.
16    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
17       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
18          and offline_exf_seaice (seaicetd + adjoint).
19    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
20       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
21        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
22    o few changes to pass when compiling with strick checking of arguments
23       across S/R (allow to find few bugs in S/R calls).
24    o pkg/seaice:
25     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
26       2d-fields, for slightly better performance
27    
28    checkpoint61t
29    o pkg/seaice:
30     - remove unused variables in seaice_evp
31     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
32    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
33       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
34       each processor opens a different file (a fix from Matt).
35    o cg2d:
36       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
37       this reduces number of EXCH calls by 2 when using exch2.
38       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
39       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
40    o pkg/thsice:
41       add code for Near Infra-Red albedo (from Jeff)
42       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
43    o ini_model_io:
44       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
45       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
46       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
47    
48    checkpoint61s
49    o pkg/exch2 (exch2_rxN_cube*):
50       remove last BARRIER (no need to synchronise after getting data from shared
51       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
52    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
53      and generate new output (for the 2 tests) using default rotationPeriod.
54    o pkg/exch2:
55      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
56        (was already the case with AUTODIFF_EXCH2 defined)
57      - add bj in exch2 arrays and S/R.
58      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
59        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
60    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
61      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
62        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
63      - verification experiment natl_box.longstep
64    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
65      allow different versions of ifort (8 or 9) and different versions
66       of mpi (mpich or mpich2) to be used with the same optfile.
67      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
68       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
69    o pkg/seaice:
70      fix previous modif (3-level field removed) for old-pickup reading
71    
72    checkpoint61r
73    o pkg/seaice:
74     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
75      1. introduce fields for time step (N-1)
76      2. do not use levels 2 and 3 anymore (but keep them)
77      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
78         includes changes to pkg/thsice/thsice_get_velocity.F,
79         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
80         pkg/obcs/obcs_apply_uvice.F.
81     - completely remove code for leap-frog time stepping for second order
82       advection
83     - adjusted adjoint accordingly;
84       gradient checks have improved by an order of magnitude!
85    
86    checkpoint61q
87    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
88     - the boundary conditions along open boundaries are unclear, because the
89       associated masks are set to zero and are thus treated as closed when
90       applying the slip-boundary conditions.
91     - move initialisation of grid variables from seaice_init_varia to _fixed
92    o adding doc/diags_changes.txt
93    o model/src:
94      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
95       to avoid "_diags" naming if no relation to pkg/diagnostics.
96      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
97       file and only call PLOT_FIELD_XYZ if debugMode=T.
98      remove few PLOT_FIELD_XY calls outside initialisation.
99      remove few unnecessary BARRIER.
100    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
101      of salt_plume package in Southern Ocean
102    o pkg/thsice:
103     - fix hOceMxL in overlap (needed for sea-ice advection);
104       update output of experiment global_ocean.cs32x15.icedyn.
105    o pkg/seaice:
106     - make the (placeholder-)tracer IceAge a little more meaningful
107      by avoiding ridging of age due to convergent ice flow
108     - add diagnostics for surface temperature, atmospheric and oceanic
109       heat flux, and atmospheric and oceanic ice growth
110    
111    checkpoint61p
112    o eesupp (global_max & global_sum):
113     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
114     - remove starting & endding barrier (no longer needed)
115    o pkg/mdsio, writelocal:
116       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
117       (remove the STOP): uses shared buffer IO to store data from all threads
118       and then let master-thread write nThreads tiles.
119    o pkg/mdsio (read/write field):
120     - tiled IO done in 1 piece (all levels at a time);
121     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
122     - multi-threaded: allow to read/write local (non-shared) array
123       (was already working with singleCpuIO ; now works also without);
124       => no longer needs barrier call after reading a file (added inside
125       mds_read/write field).
126     - move barrier calls outside gather/scatter_2d to mds_read/write_field
127    o pkg/obcs/exf
128      - exf_getffieldrec.F: add a few ". _d 0" and
129                            add code to catch the case fldperiod = 0.  
130      - obcs_precribe_read.F: change if statements so that they match
131                              the variable type (_RL)
132      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
133        exf_iprec) as part of namelist EXF_NML_01
134    o pkg/mdsio:
135      - read/write tiled (local) files: read/write 1-level tile chunk at a time
136        (instead of segment of length sNx); expected to speed up tiled IO.
137    o pkg/exch2:
138      - take buffer copy from/to array out of S/R exch2_send/recv into new
139        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
140        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
141      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
142      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
143        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
144        including Topology header file (and common blocks).
145      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
146        remove 2nd exch call in exch2_s3d_rx (no longer needed).
147      - document S/R arg. list (+ update some comments)
148    o pkg/seaice:
149      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
150        temperature and humidity over sea ice based on climatological values.
151      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
152        of LSR (this change is expected to change the results slightly because now
153        it uses slightly difference moduli from the second last LSR solution, but
154        that is more consistent with the stress computations; this part of the code
155        is not tested in the verification experiments)
156      - fix diagnostics for flux of ice in case of B-grid
157      - turn strain rates eij and press into global fields within global
158        common block in SEAICE.h for more straighforward diagnostics
159      - fix diagnostics for principal stress components, press, zeta, eta
160        to give something meaning full
161    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
162      new output (all 4 tests) using default rotationPeriod.
163    o pkg KPP:
164      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
165      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
166        and normal grid from 1 to Nr)
167    o Fix computations of L4rdt in mom_calc_visc.F
168    o eesupp:
169      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
170      should be called before a "stop" if we know that all process are going
171      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
172    
173    checkpoint61o
174    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
175    o model/src/ini_curvilinear_grid.F:
176       compute angleSin/CosC when they are not read from a file
177    o pkg/seaice:
178       add pseudo time stepping for LSOR
179    o pkg/exch2:
180       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
181    o pkg/seaice:
182       Adding separate sea ice albedo, drag coefficients, and HO in Southern
183       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
184    o SingleCpuIO:
185       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
186    o pkg/seaice:
187       put exchanged variable in (local) common block for MPI+Multi-Threads
188       to work (necessary with exch1, and for now with exch2 too).
189    o verification: to get more experiments tested with mpi, mth and mpi+mth,
190      change tiling of:
191       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
192       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
193      update output of exp:
194       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
195       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
196      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
197                       (note: output.txt generated on faulks using only 1 tile)
198    o eesupp & mdsio (SingleCpuIO):
199     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
200       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
201       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
202     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
203     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
204       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
205    o pkg/exch2:
206     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
207       read parameter file "data.exch2" if it exists; otherwise try default regular
208       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
209     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
210       with new code (not to be used, just as a backup solution).
211     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
212       in utils/exch2/input.
213    
214    checkpoint61n
215    o eesupp & mdsio (SingleCpuIO):
216      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
217        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
218        receive real*4 array (instead of real*8) to read/write 32.bit files.
219        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
220         and remove new mapping S/R)
221    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
222      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
223        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
224        when using exch2. Add S/R to map global io-buffer to global model array.
225      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
226    
227    checkpoint61m
228    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
229      and add 3 other S/R for other types (R4,R8,RS).
230      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
231    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
232     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
233     - reduce number of macro definitions (keep only those which are used);
234       can always call directly the corrresponding S/R if needed.
235     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
236       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
237     Fixed wrong type of arg in:
238       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
239       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
240     To fix: global_sum of var in common block is wrong (multi-threaded) in:
241       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
242     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
243    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
244      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
245    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
246    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
247      edges are closed (zero depth); might happen with "blank tiles";
248      for now, disabled if using OBCS.
249    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
250      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
251    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
252      to reduce length of 1.D array print in STDOUT.
253    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
254      + use 48 tiles (16x8): this will allow to test "blank tiles".
255    o start to test MPI + multi-threaded (change testreport to skip tests
256      where number of tiles do not match).
257    o genmake2: add option "-omp" to turn on Open-MP ;
258      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
259    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
260      and keep the original tile numbering. Note: compatible with old
261      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
262    
263    checkpoint61l
264    o Overlaps had been forgotten in calculating ijk keys : fixed
265    o fix cyrus makedepend for gcc 4.4
266    o experiment fizhi-cs-aqualev20:
267      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
268      and generate new output. Note: new output is much closer to the old
269      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
270      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
271    o pkg/fizhi:
272     - change to avoid indices going deliberately over array-bounds
273     - remove unnecessary MPI stuff
274     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
275     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
276       does not go over array-bounds and therefore returns reliable output.
277     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
278       this S/R has 4 output arguments, which are used inside "get_alarm";
279       when it is called with the same variable "ndum" in place of several
280       output arguments, this produces weird side effect inside "get_alarm"
281      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
282       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
283       address) and produces error.
284    o tools/gemake2: (March 27-29 2009)
285      with option "-mpi": link *_mpi files from "MODS" dir (this is what
286      testreport does).
287    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
288    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
289       update lab_sea.lsr & lab_sea.salt_plume results
290    o pkg/seaice:
291      Major overhaul of the LSOR solver: change discretization from original
292      finite differences to finite volume. The old routine is still in the
293      file seaice_lsr.F and can be turned on with the CPP-flag
294      SEAICE_OLD_AND_BAD_DISCRETIZATION
295      Along with this change, the discretization of the strain rates is changed.
296      The same flag turns on the old discretization in seaice_calc_strainrates.F
297      All verification experiments with seaice are affected (except for
298      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
299      results by setting the above flag.
300      Further changes involve changes in defaults:
301      - ALLOW_FLOODING is defined and turned on by default
302      - SEAICEadvSnow = .true. is now the default
303      - SEAICEadvSalt = .true. is now the default
304      - SEAICEadvAge  = .true. is now the default
305      - SEAICE_clipVelocities  = .false. is now the default
306                                         (as per J. Zhang's recommendation)
307      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
308        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
309      - seaice_growth: replace computation of UG by a simple copy from wspeed
310    
311    checkpoint61k
312    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
313      seaice_lsr: fixed a few metric terms,
314                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
315                  add more debugging diagnostics
316      seaice_evp: removed superfluous many metric terms of FV discretization
317                  of stress divergence
318                  affects lab_sea, lab_sea.hb87
319      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
320                  of stress divergence for non-evp solver
321                  (this part is not tested anywhere)
322      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
323                  they were effectively only half slip
324                  affects lab_sea.hb87
325      updated all relevant verification experiments (except lab_sea//output_adm.txt
326        which was left over, but fails at level 7 & 6)
327    
328    checkpoint61j
329    o pkg/seaice: turn a few hard wired parameters into run time parameters
330    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
331      time in seconds as promised by the usints in seaice_monitor and exf_monitor
332    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
333      that are not cubed-sphere grids
334    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
335    o pkg/ctrl:
336      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
337    o non-hydrostatic (calc_gw.F):
338      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
339      update output of exp. global_ocean.cs32x15.viscA4
340    o remove backward compatibility for thetaMin,phiMin
341      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
342    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
343      interpolated wind field not only for curvilineargrid=.true., but also
344      for a rotated grid (rotateGrid=.true.)
345    o pkg/exf: add capability to bypass interpolation for runoff
346      by setting yet another CPP-flag
347    o eesupp/src, B-grid exchange:
348      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
349    o autodiff
350      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
351      allows to switch to single-prec common blocks;
352      corresponding switch occurs in tamc.h, integer isbyte
353      TAF store directivs "byte" and "kind" seem equivalent;
354      Most tamc.h have been updated correspondingly.
355    
356    checkpoint61i
357    o autodiff:
358      fix autodiff_sore/_restore indices for obcs
359      (spotted by I. Hoteit, M. Mazloff)
360    o pkg/autodiff, pkg/ctrl:
361      Add flag to reduce all tapelev I/O to single-prec.
362      In data.ctrl set
363        doSinglePrecTapelev = .TRUE.
364    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
365      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
366    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
367      real fresh water flux (not yet)
368    o pkg/mdsio & rw:
369     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
370     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
371    o pkg/flt:
372     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
373       init_fixed & ini_varia.
374     - clean-up & simplify linear interpolation S/R:
375       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
376     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
377     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
378     - add vert. coordinate & horiz. indices to output files.
379     - change vertical position in initial condition, from index to depth [m].
380     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
381       (easier to get to a curvilinear grid) ; delX,delY no longer used.
382    o pkg/ggl90: a few modifications:
383     - fix bottom boundary condition, and interpolation of KappaE
384       near top and bottom
385     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
386     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
387     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
388    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
389      (maintain temporary backward compatibility, until next checkpoint)
390    
391    checkpoint61h
392    o pkg/diagnostics with "periodic averaging diagnostics":
393      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
394    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
395    o pkg/obcs: fix loop ranges for balancing code
396    o pkg/flt:
397     - improve criteria for finding which tile owns a float.
398     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
399    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
400      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
401      with ocean biogeo)
402    o pkg/flt:
403     - do some cleaning and fix the restart ;
404     - add output.txt in flt_example/results to get this pkg tested.
405    o genmake2: add an EXTENDED_SRC option and flag.
406       for now, cannot be turned on on command line (only through genmake_local)
407    o pkg/mdsio: read/write vector:
408     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
409     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
410       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
411     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
412      (drop to 4 digits matching for grad). But this test does not look very
413      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
414    
415    checkpoint61g
416    o pkg/flt:
417      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
418       + make OPTIONS file more standard.
419      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
420      - fix _BYTESWAPIO CPP-Flag
421      - standard reading of file-parameter "data.flt"
422      - fix argument list of S/R FLT_RESTART
423      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
424    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
425    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
426      a still unfixed compiler/optimization bug
427    
428    checkpoint61f
429    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
430      update results of global_ocean.cs32x15.icedyn test.
431    o move getcon.F from model/src to pkg/fizhi.
432    o pkg/exf: add parameter for extrapolation of temp up to the surface
433       and option to prevent negative evap (in bulk_largeyeager04 only).
434    o Prather Advection scheme: fix tracer conservation for divergent flow
435      (e.g., when using NonLin Free-Surface).
436    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
437    o gmredi (Visbeck-variable-K):
438     - add more parameters to Visbeck-variable-K.
439     - use a 5 points average for dSigmaR in Visbeck-K calculation
440       (more "homogenous": same stencil and same weights as in dSigmaH)
441     - update output of ideal_2D_oce experiment.
442    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
443      (#undef REAL4_IS_SLOW)
444     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
445       coordinate variable
446     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
447       (surface forcing fields), removes some of the functionality
448     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
449     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
450       probably not all: copy _RS surface flux fields to RL field before
451       calling DIAGNOSTICS_FILL
452     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
453       real*4 (CALL EXCH_*_RS) versions.
454     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
455       (generate new output).
456    
457    checkpoint61e
458    o gmredi (Visbeck-variable-K):
459      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
460      - change computation of Visbeck-K where Slope > Smax :        
461        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
462        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
463    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
464      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
465    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
466    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
467      does not become too large (to avoid precision problems in implicit-diffusion
468      solver); update ideal_2D_oce output.
469    o pkg ggl90:
470      - in ggl90_cal.F: compute only one set of visc/diff, used to
471        step forward TKE/T/S/momentum
472      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
473        have Prandlt =1)
474    o gmredi (fm07):
475      - add lower limit on Transition layer thickness + lower limit on 1/lambda
476      - allow to set few more params from data.gmredi
477    o pkg ggl90:
478          - add missing sqrt(2) factor in computation of mixing length
479            scale in ggl90_calc.F
480            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
481    
482    checkpoint61d
483    o adjoint modifs
484      - adapt to new field rhoInSitu
485      - allow to revert from StoreDynVars2D, StoreDynVars3D
486        to individual fields
487        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
488    o store 3-D (in-situ) density in commom block (DYNVARS.h)
489     - save 1 rho computation.
490     - no longer modify T & S inland when using down_slope pkg.
491    o gad_som : allow to switch to SOM advection for T & S without corresponding
492      pickup files (using new S/R: MDS_CHECK4FILE).
493    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
494      (for useSingleCpuIO to work in multi-threaded)
495    o pkg/shelfice:
496     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
497       with SHELFICEtopoFile in data.shelfice
498     - move code for reading ice shelf topography and modifying hFacC into separate
499       subroutines of the shelfice package
500     - separate initialisation of "fixed" and "variable" variables
501     - kTopC is not (yet) replaced by kSurfC, although this is possible
502    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
503    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
504      and rename:
505      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
506      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
507    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
508    
509    checkpoint61c
510    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
511      to add mass source/sink of fluid in the interior (3-D generalisation
512      of oceanic real-fresh water flux).
513    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
514    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
515    o new pkg: down_slope
516      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
517      - presently, modify T & S inland (dwnslp_calc_rho.F).
518        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
519      - implementation for ocean in P-coords not tested.
520      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
521    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
522      (to facilitate conversion of oceanic pkg to p-coordinate).
523    o change FIND_RHO to FIND_RHO_2D :
524      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
525    o new pkg: cheapaml
526    
527    checkpoint61b
528    o exch2:
529      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
530      - no longer depend on the order sequence (N,S,E,W).
531      - 3rd exchange no longer needed (tested with 24 tiles).
532      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
533      - exch_UV_A-grid readily available (but not yet tested).
534      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
535      (both are no longer needed) in exch_uv: no effect in forward run; but
536       get truncation error differences with adjoint exch.
537    o exch2:
538     - change index-bounds storage (moved from target to local tile,
539       more intuitive this way) ; rename/remove some variables.
540     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
541    
542    checkpoint61a
543    o exch2/matlab-topology-generator:
544      fix bug in index bounds for N-S internal exchange (hard to tell if this
545      had any effect on the solution).
546    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
547      is exceeded
548    o testreport: modify syntax of awk, so that it works also with
549      awk, and not only with nawk and gawk
550    
551    checkpoint61
552    o autodiff
553      Change default for TAF usage by removing argument '-nonew_arg'
554      This changes TAF subroutine argument list (ordering of active var.)
555      Omission of this flag leads to incompatibility w.r.t. TAMC
556      To restore TAMC-compatibility, need following modifs:
557      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
558      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
559      Tested TAF version is 1.9.22
560      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
561    
562    checkpoint60
563    --->>> This is the last checkpoint for which generating the adjoint
564    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
565    --->>> by default.
566    --->>> Future checkpoints will ommit this flag by default.
567    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
568    o pkg/grdchk: Add gradient check to etan0 perturbations.
569    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
570    o pkg/autodiff: more flexibility in zeroadj.
571      model/src: modifying do_oceanic_phys.F accordingly.
572    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
573    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
574      special setup of gmredi for which the adjoint is stable
575      enough for parameter optimization.
576    o bridging the gap between eddy stress and GM.
577      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
578          along with a change in CPP option (now ALLOW_EDDYPSI).
579      -> when using GM w/ GM_AdvForm:
580          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
581          is applied either in the tracer Eq. or in momentum Eq.
582          depending on data.gmredi (intro. GM_InMomAsStress).
583      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
584      The key modifications are in model/src/taueddy_external_forcing.F
585      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
586    
587    checkpoint59r
588    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
589      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
590      fix option to read coriolis(@ cell-corner) from files with CS-grid.
591    o pkg/mnc: add some attributes to standard 1D-coordinate variables
592    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
593      mass points, when using mnc for output
594      - add runtime parameter (missing_value, missing_value_int) to override
595        default (which is the value of getcon('UNDEF'))
596    o pkg/mnc: prepare mnc for the actual use of missing values with the
597      diagnostics package: small fix in mnc_cw_readwrite.template and more
598      initialisation of never used fields
599      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
600      versions
601    o pkg/thsice/thsice_ini_vars.F added default initial values so that
602      thermodynamics sea ice solver does not blow up when some initial fields
603      are missing.
604    o move from external_forcing_surf.F to ini_forcing.F
605      the p-coord. hack consisting in using pLoad to set phi0surf ;
606      update output of tutorial_global_oce_in_p (affected @ truncation level).
607    o Freshen up a bit hs94.1x64x5, notably:
608      remove rotationPeriod and tRef=5*0. (adjoint only), and add
609      exactConserv=.TRUE.
610    o pkg/generic_advdiff:
611      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
612      applies to files where Temperature & Salinity 2nd Order moments are used.
613    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
614      this uses a dynamically allocated internal state data structure
615      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
616      and requires a fortran 90 compiler
617    
618    checkpoint59q
619    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
620       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
621    o Refresh tutorial_global_oce_biogeo, notably:
622      - change bathymetry (put back seamounts in ACC, use hFacs)
623      - change EOS (POLY3 --> JMD95Z)
624      - use Bryan-Lewis vertical diffusivity
625      - use multidimensional advection
626      - remove old virtual virtual in dic pkg, now done through ptracer pkg
627      - change a couple of parameters in dic pkg
628    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
629    o pkg/obcs: change default to OBCSfixTopo = .true.,
630      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
631      - replace "debugMode" with "debugLevel .GE. debLevB"
632    o implementation of TAF directives for gchem,cfc,dic
633    o remove "exp5" (replaced by tutorial_deep_convection).
634    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
635      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
636      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
637      --> changes results in exp4, seaice_obcs
638    o tutorial_deep_convection :
639      update the set-up and increase resolution and domain size ; start
640      from pseudo initial conditions = output at t=120mn in order to see
641      something happening when running testreport.
642    o pkg/seaice: add os7mp as an advection scheme
643                  add check for advection schemes
644                  add a flag for restoring T and S underneath sea ice
645    o pkg/my82: add netcdf-support and diagnostics
646    o thsice pkg:
647      - Now hsMax limits snow height by turning it into ice following
648        flooding scheme (and now conserving energy)
649      - Slight rewriting of the formula in thsice_calc_thick.F
650      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
651      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
652    
653    checkpoint59p
654    o gchem / dic / cfc :
655      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
656      - add new parameter files: "data.dic" & "data.cfc" ;
657      - various re-arrangement in initialisation & header file ;
658      - fix tutorial_global_oce_biogeo for multi-threaded test.
659    o pkg/dic: test for "pickup_dic" file when restarting ;
660      if no pickup-file, can restart with a re-initialised pH (same as it did
661      before) providing pickupStrictlyMatch is set to False.
662    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
663      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
664    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
665      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
666    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
667     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
668       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
669    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
670       scheme to use for vorticty-term ;
671     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
672       (with default selectVortScheme, return to original discretisation)
673     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
674    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
675    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
676      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
677      also fix diagnostics VISCAHW & VISCA4W.
678    
679    checkpoint59o
680    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
681    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
682      move a few statemens out the main loop into separate loops
683    o pkg/shelfice:
684      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
685        (kg/m^2/s), does not break tests, because in verification/isomip,
686        rhoConstFresh=rhoConst (by accident)
687      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
688      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
689        new file model/src/seawater.F, so that they are available for all pkgs.
690      - convert potential temperature into in-situ temperature. This changes the
691        isomip tests => update tests
692    o add a flag writePickupAtEnd (default=true) to be able to suppress
693      writing a pickup at the last timestep
694    o tools/mpack-1.6 :
695      - disable automake (not working) and autoconf (not needed).
696      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
697        also cleaner with much less compilation warnings.
698    o pkg/profiles:
699      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
700      (for "less than 32 characters name" compiler requirement)
701    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
702      conditions that have a different sampling frequency than S/T/U/V obcs
703    o pkg/diagnostics (stats-diags):
704      - fix global Min/Max in case 1 processor get only empty tiles
705    o genmake2: replace (4 times)
706         make genmake_tc_1.o >> genmake_warnings 2>&1
707      with
708         COMM="$CC $CFLAGS -c genmake_tc_1.c"
709         echo $COMM >> genmake_warnings
710         $COMM >> genmake_warnings 2>&1
711      to make genmake2 always see the value of CC as specified in the optfile.
712    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
713      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
714      - modify verification advect_cs test to test SOM-advection on CS-grid.
715    o pkg/ctrl:
716      - Rewrite of ctrl_map_ini_ecco.F,
717        introducing a generic routine (ctrl_map_ini_gen.F).
718      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
719    
720    checkpoint59n
721    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
722      number in dedicate array "hdiag":
723      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
724        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
725      - many small changes (integer format) for large number of diagnostics
726      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
727        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
728    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
729      usingSphericalGrid, this allows to define the rotated grid coordinates
730      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
731      geographical coordinates according to the inverse of the rotation defined
732      by the Euler angles, so that Coriolis parameter and online-interpolation by
733      exf works with the geographical coordinates on XC/YC/XG/YG.
734      Naturally, this feature does not work with all packages, so some
735      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
736      profiles), because there the coordinates are assumed to be regular
737      spherical grid coordinates.
738    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
739      - introduce isopycnal diffusion coefficient control.
740    o tools/adjoint_options:
741      - additional control vector components.
742    o pkg/mnc: have mnc create marginally meaning full coordinate variables
743      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
744    o pkg/mypackage:
745      - add example of read/write pickup for state-var ;
746      - add entry points to the main code for state-vars diags & write-pickup.
747    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
748      transitions for useExfYearlyFields
749      - add new subroutine that determines the file to read from for
750        use*YearlyFields = .TRUE. and .FALSE.
751      - add a verification experiment to global_with_exf that tests
752        useExfYearlyFields with USE_EXF_INTERPOLATION defined
753    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
754      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
755      subroutines (which could be generated from a template, because they are
756      almost identical), for now they are included in obcs_prescribe_read.F for
757      simplicity
758    o pkg/exf:
759      - add a little more diagnostic to exf_interp_read (in analogy to
760        mds_read_field, can be turned off with debugLevel < debugLevA=1)
761      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
762        ugly but fast by unrolling short inner loops, inserting a unroll=8
763        directive in routine lagran, and splitting a loop and making do while the
764        outermost loop (the latter requires the intoduction of index arrays)
765    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
766    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
767      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
768    o verification/seaice_obcs: updated for restart test and latest options
769    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
770      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
771      for now this is only available for the C-grid code and also within
772      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
773    
774    checkpoint59m
775    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
776      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
777    o gad_som : fix flux output (& diagnostics) to have same units as other  
778      advection scheme fluxes (was previously multiplied by deltaT).  
779    o added verification/seaice_obcs both to test seaice open boundaries
780      and to provide an example matlab scrpt for generating them
781    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
782    o pkg/salt_plume: clean up salt_plume_frac.F to
783      remove redundancy in PlumeMethod 1 and 4
784    o pkg/kpp: added saltplume diagnostics
785    o pkg/obcs and pkg/seaice:
786      - do not set uice and vice to zero when OB*icefile are unspecified
787      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
788      - moved seaice tracer obcs after call to seaice_growth
789    o pkg/salt_plume: added various options for salt plume depth
790      criterion and for vertical distribution of the salt
791    
792    checkpoint59l
793    o pkg/ptracers: new version of ptracers pickup:
794      read meta file and write only fields which are needed to restart.
795      ( same logic as main pickup file ; also using pickupStrictlyMatch )
796    o pkg/seaice:
797      - add timescale for melting due to warm mixed layer as a means of
798        setting SEAICE_availHeatFrac more conveniently
799      - add a CPP-flag/runtime parameter check for flooding algorithm
800      - reformulated availHeat in seaice_growth.F to be independent of AREA
801    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
802      unit changes
803    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
804    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
805      SX vector computer.
806    o pkg/seaice:
807      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
808        seaice forcing fields can now be read only through pkg/exf
809      - removed some unused halos
810    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
811    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
812      or U/VICE from U/VWIND before computing U/VSTRESS
813    
814    checkpoint59k
815    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
816      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
817    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
818      all experiments pass when compile with un-initialised var. checking option.
819    o added pkg/salt_plume
820    o script to test restart (for now, in MITgcm_contrib/jmc_script)
821    o pkg/seaice: new read/write pickup version.
822      read meta file and write only fields which are needed to restart.
823      ( same logic as main pickup file ; also using pickupStrictlyMatch )
824    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
825    o lab_sea.hb87: modify the domain & update output.hb87.txt :
826      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
827      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
828      process. Fixed here by closing the domain at the Northern boundary.
829    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
830    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
831      a set of consecutive levels in/from a 3-D array.
832    o pkg/ptracers:
833      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
834      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
835    
836    checkpoint59j
837    o in pkgs: dic, obcs, offline, rbcs:
838      standard way to compute coeff. for time interpolation between 2 time reccords
839      which retains full precision (& make results less dependent on compiler).
840      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
841    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
842      packages instead of reading ice cover and wind speed separately
843    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
844     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
845      to allow to compile customized code before the update)
846    o cleaning-up:
847      - fix CPP instruction syntax in pkg/obcs
848      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
849        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
850      - fix some threads issue in IO parts.
851    o pkg/dic:
852      - add tons of "_d 0" (--> much better testreports !)
853       and then update outputs of tutorial_global_oce_biogeo
854    o pkg/mom_fluxform:
855      add a special version of momentum advection intended to conserve momentum
856      next to a bathymetry step or a coastline edge. (default = off = #undef)
857    o new read/write pickup version:
858      - for now, only implemented for main (mdsio) pickup file.
859      - write out only what is needed to restart; merge pickup_nh , pickup_ph
860        and main pickup together.
861      - read meta file; read only what is needed to restart; stop if a field
862        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
863        if it make sense (even if the restart is not perfect).
864      - if no meta file, assume that pickup to read corresponds exactly to
865        a pickup that would currently be written.
866      - read pickup written in the old format (until checkpoint59i) if it
867        recognizes an old meta file (no field-list).
868      - add a meta file in exp. which starts from a pickup: 2 cases:
869        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
870         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
871        b) a meta file describing the content of the associated pickup file
872         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
873    o pkg/mdsio & pkg/rw:
874      - new routine to read a meta file ; new set of routine to read
875        Multiple-fields file (with meta file).
876    o added open boundary conditions capability for seaice
877        HSNOW, HSALT, UICE, and VICE
878    
879    checkpoint59i
880    o adjoint:
881      * fix multiDimAdvection adjoint
882        (partial recomputation problem by TAF for fVerT(:,:,kDown)
883        and comlev1 size definition (maxpass vs. max. number of tracers)
884      * verification/global_ocean.90x45x15 adjoint now tests
885        NLFS and multiDimAdvection using DST3 (=30)
886      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
887    o pkg/kpp: add "_d 0" to real constant (if missing);
888      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
889      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
890    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
891      for internal parameters related to restart process (formerly from PARAMS.h)
892      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
893    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
894      as argument. (only atm2d & obcs write_pickup have not yet been updated)
895    o pkg/monitor:
896      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
897      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
898      - account for deep Atmosphere factor and density factor (anelastic)
899    o added open boundary conditions capability for seaice HEFF and AREA
900    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
901      thermodynamics
902      - requires a little reorganization, which affects the testreport results
903        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
904        so that now the conservative form is tested
905      - add a few comments
906    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
907    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
908    o add new diagnostics to seaice: advective, diffusive fluxes (only for
909      multidim-advection, for scheme 2 they are not filled) and transports,
910      thermodynamic growth rates
911    o change units of EmPmR (inside the code, + within coupling interface)
912      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
913      Affects results @ truncation level (cg2d match) and update output of
914       experiments: lab_sea(6), global_ocean.90x40x15(10),
915      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
916      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
917      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
918      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
919    
920    checkpoint59h
921    o pkg/exf:
922      - improve vectorization by moving if-statement out of loops in
923        exf_mapfields, exf_radiation
924      - exf_bulkformulae.F: introduce 2D fields and vectorize code
925    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
926    o testreport:
927      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
928        monitor & update offline_exf_seaice exp. output.
929      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
930    o pkg/seaice:
931      - bug fix in the evp solver: boundary conditions were affected be
932        masking of zMax/zMin (changes results)
933      - minor bug fix in boundary conditions in seaice_calc_strainrates
934        (changes results for no_slip)
935      - seaice_lsr.F: make interpolation of eta dependent on boundaries
936      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
937      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
938        stress formulation and no-slip boundary conditions
939    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
940      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
941    o pkg/seaice: a first HSALT time stepping equation has been checked in
942    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
943      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
944      without requiring DO-IF statements
945    o pkg/thsice:
946      use continuous power-law function for partition of energy between lateral
947      melting/freezing and thinning/thickening ; old code using step function
948      still available with #undef THSICE_FRACEN_POWERLAW
949      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
950    o testreport: change AD testing : check against results/output_adm.txt
951      using same scripts as for forward test.
952    
953    checkpoint59g
954    o adjoint testing: in preparation for changing testreport:
955      - output format: cost and grad written on separated lines
956      - ad output results in directory "results" (instead of "results_ad")
957    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
958    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
959    o pkg/ecco: allow user defined cost function contributions
960    o testreport:
961      Allow to choose (per experiment) the list of tested output variables
962       and the main variable (used to issue a pass/FAIL ) ;
963      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
964      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
965      Also modify printing of summary:
966       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
967       b) echo the list of tested variables in the individual summary.txt of
968          each experiment.
969    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
970      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
971      (but still depend on the tile decompostion of the domain).
972    o pkg/seaice: change a discretization detail to make the B-grid code
973      "more symmetric". This change is likely to remove all "ridges/leads" that
974      where quasi-aligned with the grid in B-grid solutions. It may also be
975      the solution to the stress coupling issues with the B-grid.
976    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
977      remove .cvsignore from input dir. (since testreport no longer run here).
978    o pkg/thsice:
979     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
980     - fix reshaping of sea-ice just after advection:
981       melt all the ice only if ice-volume is too small.
982     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
983       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
984     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
985    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
986      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
987    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
988      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
989      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
990      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
991      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
992      -> update output.txt
993    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
994     this affects truncation error: -> update output.txt of exp:
995      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
996      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
997    
998    checkpoint59f
999    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1000    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1001      a bounded range (in forward mode)
1002    o pkg/ecco, ctrl, autodiff and mom_common:
1003     internal parameter controls, completements of implementations
1004    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1005    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1006      (not seem any difference in testing results).
1007    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1008       at face corners.
1009    o pkg/generic_advdiff:
1010     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1011      loop range indices for computing vertical advection tendency
1012      and do the calculation in the interior only (no overlap) ;
1013      for now, only implemented for SOM advection (to save CPU time).
1014     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1015    o exch2 adjoint
1016      First set of changes:
1017      - add exch2 hand-written adjoint templates
1018      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1019        This will require cleanup in pkg/autodiff/*.F
1020        (changed routines currently kept separate in verif. code/)
1021      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1022        that used to hide exch2 or cubed-sphere specific code
1023        (commented via 'cph-exch2')
1024    o pkg/seaice
1025      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1026    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1027       output of global_ocean.cs32x15.thsice .
1028    
1029    checkpoint59e
1030    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1031      for B-grid vector (not yet tested) and C-grid vector (<- only used
1032      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1033    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1034      (#ifdef ALLOW_SALT_PLUME)
1035    o gather_2d/scatter_2d: removed halo regions
1036    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1037      scheme and the corresponding test case (under front_relax dir). For now,
1038      only available with Skew-flux form and not yet tested in realistic set-up.
1039      adjoint: store directives updated, but gradient checks deteriorated,
1040      so maybe GM/Redi adjoint is now broken.
1041    o seaice adjoint
1042      * add AREA, HEFF, HSNOW as control variable
1043        (should not change lab_sea results)
1044      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1045    o pkg/seaice:
1046      * added computation of saltFlux in seaice_growth;
1047        For time being, sea ice salinity is assumed constant
1048        contribution of snow flooding to freshening of sea ice is neglected.
1049        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1050        defaults to 0.0 in order to maintain backward compatibility.
1051        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1052      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1053      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1054        heat content used to melt or grow ice
1055      * commented out cap of HICE: it helps keep ice thinner
1056      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1057      * applied OBCS T/S mask to HEFFM sea ice mask
1058    
1059    checkpoint59d
1060    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1061     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1062     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1063    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1064     and change default value of parameter "GM_Small_Number";
1065     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1066       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1067       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1068    o pkg/ecco: cost function when applying pkg/smooth to controls
1069    o pkg/ctrl: add forcingPrecond run time parameter
1070    o pkg/seaice:
1071     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1072     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1073       changes verification/lab_sea
1074     - rearrange implicit part of u-equation in LSR solver to make it easier to
1075       read, understand, and debug. This causes changes at the truncation level.
1076     - fix (serious) bug in the boundary conditions (sign error in the implicit
1077       part) of the LSR solver. Changes all LSR results.
1078     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1079       is initilized with small values - does not change lab_sea results.
1080     - added HsnowFile initialization capability
1081    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1082     initialization of pkg/smooth and application to control vector
1083    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1084    o dependencies: pkg/profiles requires pkg/cal
1085    o pkg/profiles:
1086     - added option ALLOW_PROFILES_GENERICGRID
1087         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1088         that interpolation information (grid points and coefficients) is provided
1089         within the netcdf input files.
1090         -> sample matlab scripts can be found in MITgcm_contrib/gael
1091         that allow you to prepare netcdf input files.
1092     - also modified: cleaner include statements, cleaner error print statements,
1093       cleaner stops when error, and more tests of the netcdf input files consistency.
1094    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1095    o pkg/seaice:
1096     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1097       requires a new routine: seaice_diagnostics_fill.F
1098     - make sure that seaice does not move if not forced (pressure replacement
1099       method, Hibler and Ip, 1995), changes results
1100     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1101     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1102       It is turned off by default (=-1.), because it changes the results.
1103     - make it possible to read AREA from a file, too.
1104    
1105    checkpoint59c
1106    o add S/R and diagnostics for oceanic mixed-layer depth
1107    o move GMRedi call after all vertical mixing schemes (including KPP)
1108    o pkg/thsice:
1109     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1110      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1111    o pkg/obcs:
1112     - bug fix for balance code
1113    o pkg/seaice:
1114      - allow values of SEAICE_elasticParm > 1
1115      - add new parameter SEAICE_evpTauRelax as an alternative
1116        to SEAICE_elasticParm
1117      - make lsr boundary conditions free slip (by default), changes result
1118      - add code for no slip boundary conditions for lsr
1119      - set minimum of zeta to zero (and not 4e8) (changes results)
1120      - add a cap on AREA after advecting AREA if seaice_growth is not called
1121    o change calculation of Visbeck K:
1122      - no longer depend on tapering scheme; instead, compute slope (limited
1123        by GM_maxSlope). this is equivalent to what was comuted before with
1124        clipping or linear tappering.
1125      - fix vertical averaging (wrong by 1/2 level)
1126      - leave the old version (but will not be maintained) within
1127        #ifdef OLD_VISBECK_CALC / #endif
1128      - update output of exp. ideal_2D_oce
1129    o change error catch in calc_r_star to improve vectorization
1130    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1131      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1132    o adjoint:
1133      Re-organized adjoint checkpointing according to Matt Mazloff
1134      (but with modifs/completions/cleanups)
1135      Storing is now bundled into large arrays to optimized I/O
1136      (and second step in cleanup of the_main_loop)
1137    
1138    checkpoint59b
1139    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1140      - export/import (between ocean & coupler) fields needed for ocean DIC.
1141    o pkg/seaice:
1142      - get rid of three more exchanges seaice_calc_viscosities (required
1143        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1144      - bug fix in seaice_ocean_stress (update of lab_sea required)
1145      - reduce loop boundaries to necessary minimum also in seaice_evp
1146      - go back to the old way of computing deltaC/Z as the adjoint likes that
1147        better
1148    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1149      passive tracer to an Age Tracer) + update output.txt
1150    o pkg/exf:
1151      - implement A-grid / C-grid selection for wind-stress input files.
1152      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1153      for now, in exf_bulk_largeyeager04.F only :
1154      - change implementation for case where windspeed + 2. components wind-stress
1155        are read-in. AND use rhoConstFresh to convert evap.
1156    o pkg/seaice:
1157      - use correct EXCH_UV for wind-forcing (on A-grid).
1158      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1159        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1160    o pkg/exf:
1161      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1162      EXF_INTERPOLATION:
1163      - merge global_with_exf/code version of exf_interp_read.F
1164        to the main code ;
1165      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1166        reading the file ; Important: This options needs to be defined to recover
1167        previous code.
1168        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1169      - no longer loose real*8 precision along the way when using exf_iprec=64.
1170    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1171      - change discretisation of evp-solver in order to avoid another exchange
1172        (changes lab_sea) and clean up a little
1173      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1174        help the adjoint (this also changes the results slightly)
1175      - add a few "_d 0" where they had been missing in seaice_evp.F
1176      - cleaning up: remove unused seaice_calc_rhs.F
1177    o pkg/exf: some cleaning-up:
1178      - change various "constants" into runtime parameters
1179      - cleaned-up Large&Yeager04 routine which should eventually
1180        replace exf_bulkformulae.F (changed names of S/R and CPP)
1181        and merged various ALLOW_ATM_WIND options
1182     only used with thsice pkg (in thsice_get_exf.F):
1183      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1184        which are used when useStabilityFct_overIce=TRUE (= the default)
1185      - change default values of ice & snow emissivity and scale downward LW
1186        by ice & snow emissivity.
1187    o pkg/thsice:
1188     fix few little problems, in thsice_calc_thickn.F:
1189      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1190      - melt only laterally if hIce < hThinIce (as the comments say)
1191      and in thsice_extend.F:
1192      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1193      - start to form ice as soon as the minimum ice-volume is reachable.
1194     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1195      and cpl_aim+ocn
1196    o pkg/kpp
1197     - move computation of surface related input fields to KPP into a new
1198       subroutine kpp_forcing_surf.F
1199     - remove wrong (within bi,bj loops) EXCH calls.
1200     - little cleaning (add argument myThid in last position, cvs header ...)
1201     - for now, fix conservation problem by exchanging KPPviscAz (may not
1202       be the best fix)
1203    o pkg/seaice
1204     - check for inconsistent evp parameter/cpp-flag combination
1205     - remove leftover errIO flat for obsolete name list error handling
1206    o OpenAD
1207     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1208    
1209    checkpoint59a
1210    o pkg/seaice: some parameter clarifications and a little bit of clean up
1211    o pkg/thsice: rename run-time parameters:
1212       himin       -> hIceMin
1213       himin0      -> hThinIce
1214       hihig       -> hThickIce
1215       i0          -> i0swFrac
1216       transCoef   -> bMeltCoef
1217       frac_energy -> fracMelting
1218      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1219       with default values (for now) that do not change the results.
1220      remove old version of thsice vars advection in pkg/seaice.
1221    o in FFIELDS.h:
1222      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1223      - make pLoad & sIceLoad always available (but still only used if
1224         ATMOSPHERIC_LOADING is #define).
1225    o pkg/kpp: replaced _KPP_RL with _RL
1226    o bug fixes for vertical diffusivity computations when both KPP and
1227        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1228        are no longer updating the vertical diffusivity array
1229        (passed as argument) but are (re-) setting those arrays.
1230    o pkg/seaice: fix bug in evp solver, while doing that
1231      - change (improve?) discretization of stress computations for both
1232        cgrid-lsr and evp solver
1233      - add a new routine to compute strain rates
1234      - the above changes lab_sea results
1235      - add no slip conditions for evp solver (off by default), lsr-version
1236        may follow
1237      - fix exchange for shear at Z-points (does not change lab_sea)
1238      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1239        (to force the user to pick a time step since there is not "safe" way
1240        of choosing it)
1241      - add principal stress diagnostics
1242      - rearrange fields for evp a little to avoid having to call a: too many
1243        exchanges and b: exchanges for stress trensor components which we do
1244        not have.
1245      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1246        of evp, complete rewrite for lsr case (latter is does not yet work
1247        in all cases)
1248    o pkg/kpp: add code to have mixing in shelf ice caverns
1249      - add myThid to all kpp routines (long overdue)
1250    
1251    checkpoint59
1252    o pkg/exf:
1253      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1254        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1255      - move exf header files from lower_case.h to UPPER_CASE.h ;
1256        add missing cvs Header & Name
1257      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1258      - add namelist param. selectStressGridPosition, exf_monFreq
1259      - retire many _CLIM routines, and remove data.exf_clim
1260        + params moved to data.exf
1261        + climsst, climsss now handled by exf_set_gen, i.e.
1262          climss?period=0 refers to constant field,
1263          climss?period=-12 to monthly forcing
1264      - split up namelists in data.exf
1265    o pkg/seaice:
1266      - remove seaice_exch and seaice_exch_uv
1267      - remove superfluous exchange of theta
1268      - add myThid to seaice_budget_ocean/ice
1269      - add new interface for atmospheric wind forcing (C-grid only)
1270        + new routine
1271        + two new field (taux, tauy for stress over ice)
1272        + removed one global field (DAIRN) for C-grid case only
1273    o pkg/thsise
1274      - 2nd set of modifs for thsice adjoint in conjunction with exf
1275    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1276    
1277    checkpoint58y_post
1278    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1279      vertical diffusivity, similar to that in MOM4; turned on using
1280      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1281      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1282    o Added capability for 3D specification of background vertical diffusion
1283      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1284      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1285      "data" file that contains the 3D vertical diffusivity coefficients.
1286    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1287      - add code within pkg thsice to advect & diffuse sea-ice fields
1288      similar to (and will replace) what has been added in  seaice_advdiff.F,
1289      but: - conserving Mass, Heat & Salt.
1290           - better when using non-linear advection scheme (not yet fully tested)
1291           - can also be used in atmospheric set-up (for now, only the diffusion).
1292    
1293    checkpoint58x_post
1294    o IO option for global-file compact format:
1295      - add options when generating topology (utils/exch2/matlab-topology-generator)
1296      - add I/O capability (pkg/mdsio).
1297      - adapt utils/matlab/rdmds.m to read this format.
1298      for now long-line format not yet supported by pkg/mdsio (& exch2).
1299    o shelfice: add a few diagnostics
1300    
1301    checkpoint58w_post
1302    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1303      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1304      (and replace horiVertRatio in NH code).
1305      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1306                         and tutorial_plume_on_slope (sensitive to truncation)
1307    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1308      directly to drive seaice model (C-grid only)
1309    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1310     - reintroduce computation of wind from stress,
1311     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1312       mass points to avoid tau = 0
1313     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1314    o rdmnc.m: make it work with "global" files created with gluemnc
1315    o rdmnc.m : some improvements in dealing with singleton dimension
1316      (tested on all testreport mnc output files).
1317    o genmake2: disable pkg/profiles if netcdf test fails.
1318    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1319    o move call to cal_readparms up to make calendar parameters/variable available
1320      to all packages
1321    
1322    checkpoint58v_post
1323    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1324      useDynP_inEos_Zc tested.
1325    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1326    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1327      and portions thereof.  See read_cs.txt for description and examples.
1328    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1329      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1330      following the great-circle arc between those 2 points.
1331    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1332      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1333    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1334     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1335     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1336     - still needs work (not working with some options ; efficiency to improve)
1337       and serious testing.
1338     - use this scheme for temperature & salinity in 2 advection test exp.:
1339       advect_xy & advect_xz, respectively.
1340    
1341    checkpoint58u_post
1342    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1343    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1344    o testreport: add option "-skipdir" to skip some test.
1345    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1346      momentum calculation.
1347    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1348    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1349      remove checkpoint.F and the_correction_step.F (no longer used);
1350      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1351    o add option (linFSConserveTr) to correct for tracer source/sink due to
1352      Linear Free surface
1353    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1354    o pkg/thsice: fix reading mnc-pickups
1355    
1356    checkpoint58t_post
1357    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1358    o pkg/mdsio:
1359     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1360       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1361       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1362     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1363     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1364       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1365     - new S/R (to replace MDSWRITEMETA), which allows to write more
1366       informations (variable names, time ...) to meta files.
1367     - modify rdmds.m to give back the meta file content.
1368    o pkg/diagnostics: change vertical interpolation to be safer, and more
1369       flexible (define p-levels to interpolate to in data.diagnostics);
1370      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1371       diagnostic pointer.
1372    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1373    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1374    o fix multi-category seaice:
1375     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1376       SEAICE_MULTICATEGORY
1377     - fix short wave heat flux
1378    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1379       and allow to use EVP solver. Change forward lab_sea: test both EVP
1380       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1381    o Initial check-in of lab_sea adjoint
1382      (very similar to natl_box_adjoint/code_seaice)
1383      * used C-grid and EVP solver
1384      * used KPP, GM/Redi
1385      * uses inAdExact=.TRUE.
1386      * gradient checks fail for both ADM and TLM
1387        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1388        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1389        issue is related to forward mismatch between g77 an ifort
1390    o pkg/seaice: overhaul of thermodynamics
1391     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1392     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1393     - move a few global fields out of SEAICE.h into seaice_growth.F and
1394       make them 2D (FICE/QNETO/ ...)
1395     - remove FO (it is the same as QNETO)
1396     - introduce a few local fields to avoid modifying external fields such
1397       as atemp, etc.
1398    
1399    checkpoint58s_post
1400    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1401      changed exf_set_gen.F so that
1402        genperiod=0 means input file is one time-constant field and
1403        genperiod=-12 means input file contains 12 monthly means
1404    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1405      this affects truncation error ; generate new output file for exp. which
1406      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1407        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1408        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1409        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1410        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1411        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1412    o start implementation of deep-atmosphere and anelastic formulation
1413    o verification: remove 2nd copy of input files and use script "prepare_run"
1414      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1415    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1416    o profiles: fix for multithreaded case
1417    
1418    o diagnostics: rename few diags:
1419      s/'PRESSURE'/'RCENTER '/g
1420      s/'TICE    '/'oceFreez'/g
1421      s/'TAUX    '/'oceTAUX '/g
1422      s/'TAUY    '/'oceTAUY '/g
1423      s/'SWFLUX  '/'oceQsw  '/g
1424      s/DIFx/DFxE/g
1425      s/DIFy/DFyE/g
1426      and add few ocean-forcing diagnostics:
1427      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1428    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1429      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1430      as actual snow thickness.  It now refers everywhere to effective snow
1431      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1432    
1433    checkpoint58r_post
1434    o modifications to pkg/seaice/growth.F, which change results of
1435      lab_sea experiment: fixes pertain to melting snow over open water, to
1436      masking EVAP under sea ice, and to using the correct AREA variable for
1437      computations of EVAP, PRECIP, HSNOW, and GHEFF
1438    o add ability to read bathy, salt, and theta using MNC (off by def)
1439    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1440      both are turned off by default and do no change any results
1441    o seaice advection with pkg/thsice: a step toward the use of non-linear
1442      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1443    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1444      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1445      in natl_box (affects results @ truncation level: update output.txt)
1446    o multi-threading and IO:
1447      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1448      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1449        (needed to work with SingleCpuIO): tested in all verif. exp.
1450    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1451      affects the results (but none of the verification test uses this scheme).
1452    o Adding some pkg/diagnostics capability to pkg/seaice
1453      (will certainly be subject to changes)
1454    o ctrl: adding new control variables:
1455      lwflux, lwdown, evap, snowprecip, apressure, runoff
1456    
1457    checkpoint58q_post
1458    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1459      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1460      high_res_cube configuration by 4% on Columbia.
1461    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1462      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1463      dynamical allocation (seems to work in multi-threaded).
1464    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1465      single CPU io) so that TAF does not have to see EESUPPORT.h
1466    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1467    
1468    checkpoint58p_post
1469    o obcs: stop if obcs is used with useCDscheme = .true.
1470    o shelfice:
1471     - fix a sign error so that no slip at shelfice interface works
1472     - remove stop for combination non-hydrostatic code and shelfice. That does
1473       not mean, that the results are correct, but at least they are numerically
1474       stable
1475    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1476    o added adjoint exch routined for all exch*3d* routines
1477      and updated flow directives
1478    
1479    checkpoint58o_post
1480    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1481      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1482    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1483      and clean-up reading/writing of pickup files.
1484    o fix local version of read/write pickup (NH part) in rotating_tank/code
1485    o simplify EXCH interface:
1486     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1487     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1488    o added the regrid package
1489    o shelfice:
1490     - add a simple boundary layer scheme to reduce noise
1491     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1492    
1493    checkpoint58n_post
1494    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1495       local variable (not in common block).
1496    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1497      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1498      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1499        to work with SingleCpuIO.
1500    o add "_d 0" to real constant of pkg/cfc subroutines ;
1501       update exp. cfc_exemple & tutorial_cfc_offline output files.
1502    o multi-threading and IO:
1503      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1504        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1505      - barrier before and after reading.
1506      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1507      - avoid using MDS_WRITELOCAL for LAND pkg output.
1508      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1509        common-block variables ; Allows multi-threading with master-thread IO.
1510    o change default MAX_NO_THREADS from 32 to 4 ;
1511      and stop cleanly when MAX_NO_THREADS is too small.
1512    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1513    
1514    checkpoint58m_post
1515    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1516       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1517    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1518       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1519       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1520    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1521        add MITgcm_tutorials (= code + all the tutorials)
1522    o ecco, option to compute cost for total ssh (mean+anom)
1523    o consistent with addition of ptracer and ssh in pkg/profiles
1524    o profiles: adding ptracer and ssh
1525    o testreport: change multi-test output-file name
1526      (from output.txt.{name} to output.{name}.txt)
1527    o profiles: now ok for mutli-tiles case
1528    o seaice: add 4 parameters for different advection schemes for area,
1529      (effective) seaice thickness, enthalphy, and snow height. Their default
1530      is the standard parameter SEAICEadvScheme
1531    o calc_gw:
1532     - add cosFacU in zonal viscous flux (harmonic.visc.).
1533     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1534       of tutorial_plume_on_slope.
1535    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1536    o calc_gw: true flux-form, account for horizontal grid spacing.
1537      update rotating_tank results, but not plume_on_slope (affected at
1538      truncation level, 11 digits).
1539    
1540    checkpoint58l_post
1541    o calc_gw:
1542     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1543     - remove side-drag for now (need to fix it); update plume_on_slope results.
1544     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1545    o commit code to make SST/SSS weights spatially variable
1546      (based on either variable in-situ or variable initial T/S weights)
1547    o pkg/ecco:
1548      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1549        now based on horizontally varying weights wthetaLev, wsaltLev
1550      * cost_averagesflags now returns year indices in addition to day, month
1551      * sflux balance is performed on annual basis
1552        (sflxumm, sfluxmm2, bal_sfluxmm)
1553      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1554        including separate counting and multipliers
1555    o pkg/rbcs
1556      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1557    
1558    checkpoint58k_post
1559    o testreport:
1560     - always build in dir. "build" (if not there, mkdir build instead of building
1561       & running in input)
1562     - run in dir run (if it exists), in build otherwise.
1563     - call prepare_run (if input/prepare_run exists)
1564     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1565    o pkg/exf modifications to interpolation and rotation routines for more
1566       reasonable treatment of North Pole singularity: for tracers North Pole
1567       value is set to northernmost zonal-mean value, for zonal velocity it is
1568       set to zero, and for meridional velocity it is set to northernmost value.
1569    o pkg/exf/exf_check_range.F
1570     - add tile index to diagnostics and move stop statement to the very
1571       end of the routine.
1572    o pkg/diagnostics: (diagnostics_main_init.F)
1573      define title of isomorphic variables according to the current config.
1574    o pkg/thsice with pkg/seaice dynamics:
1575    - fix domain of computation (interior only, required for exf) and do exchanges
1576    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1577    o towards a standard way of dealing with multi-threading in MONITOR
1578      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1579    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1580       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1581    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1582    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1583    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1584       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1585    o tracer advection:
1586     - clean-up and simplify calc_common_factors.F
1587     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1588       advection subroutine (but still not used within DST advection S/R)
1589    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1590    
1591    checkpoint58j_post
1592    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1593      from file (collects calls previously in FORWARD_STEP)
1594    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1595    o adjoint store dir. adjusted accordingly
1596    o genmake2
1597      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1598    
1599    checkpoint58i_post
1600    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1601      on wind stress (SEAICEstressFactor defaults to 1.)
1602    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1603      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1604    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1605      on CS-grid: no longer loosing mass.
1606    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1607    o pkg/ggl90: fix sloppy output and fix a bug
1608    o pkg/seaice: added SEAICEuseEVPpickup parameter
1609      - Set to false in order to start EVP solver with
1610        non-EVP pickup files when using SEAICEuseEVP
1611      - fix sign error in diffusion in seaice_calc_rhs
1612    
1613    checkpoint58h_post
1614    * Modifications for bottom topography control
1615      o replace hFacC by _hFacC at various places
1616      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1617      o add non-self-adjoint cg2d_nsa
1618      o update autodiff support routines
1619      o re-initialise hfac after ctrl_depth_ini
1620      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1621    * Adding verification for 5x5 box (4-layer) bottom topography control
1622    
1623    checkpoint58g_post
1624    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1625       used for mean seasonal cycle, mean diurnal cycle); add an example
1626       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1627    o pkg/ggl90:
1628      - add parameter (minimum surface kinetic energy)
1629      - fix bug (avoiding division by zero)
1630    o couple pkg/thsice to pkg/seaice:
1631      - modify advection in seaice to accomodate new scalar fields to be advected
1632      - only muliDimAdection scheme work with seaice/thsice
1633      - mapping of thsice-variables to seaice-variables, back and forth
1634      - does not break the verification experiments, but does not give the
1635        desired results either
1636    o pkg/seaice
1637      - make (default) second order advection a bit less confusing?
1638    
1639    checkpoint58f_post
1640    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1641      to pkg/seaice):
1642      - new routines thsice_map_exf and thsice_get_exf provide the interface
1643      - add an additional formal parameter to thsice_solve4temp
1644    o pkg/exf:
1645      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1646      - correct Stefan-Boltzmann constant
1647      - new parameter for longwave surface emittance
1648      - separate some stuff from exf_bulkformulae into new routines  
1649        exf_radiation, exf_wind
1650      - add new parameters and constants: longwave emissivity for ocean, ice
1651        and snow, evaporation parameters over ice
1652      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1653        either wind from stress or stress from wind
1654    o pkg/thSIce:
1655    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1656    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1657       and THSICE_CALC_THICKN
1658    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1659    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1660      to make debugging easier.
1661    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1662    o pkg/bulk_force:
1663      - clean-up comments and parameters ;
1664      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1665    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1666      generate new output for test-experiment: aim.5l_cs.thSI
1667    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1668      testreport accordingly
1669    
1670    checkpoint58e_post
1671    o SEAICE_CGRID adjoint done
1672    o R_STAR adjoint implemented.
1673      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1674      * need to sort out init. of h0facc, etc.
1675    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1676      to be able to use it in pure forward.
1677    
1678    checkpoint58d_post
1679    o upgrade simple test-experiment to tutorial example:
1680     step.1: duplicate the experiment and (step.2) will remove the old copy.
1681      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1682      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1683      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1684      tutorial_global_oce_biogeo    <- copy of dic_example
1685      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1686      tutorial_plume_on_slope       <- copy of plume_on_slope
1687      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1688      tutorial_global_oce_optim     <- empty for now (David ?)
1689      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1690     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1691    o correct a sign problem in cost_scat.F
1692    o obcs and ptracers: fix boundary conditions for advections schemes
1693      with larger stencil
1694    o thsice adjoint: start
1695    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1696      completeness
1697    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1698      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1699    o ptracers adjoint:
1700      * avoid extensive recomputatations
1701      * fix missing re-init. of gptr (missed by TAF)
1702    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1703      me to turn off the excessive output to STDOUT that this package produces
1704    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1705      and add those terms in Vector-Invariant formulation.
1706    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1707      if the control period (xx_hfluxperiod etc) is 0
1708    o in profiles pkg, clean routines and fix details
1709    o in ecco pkg, reading ssh data:
1710      fix problem in case the model does not start at iter0=0
1711    o fix mnc-pickup/restart for ptracers
1712    o new package prifiles:
1713      code to compute profile-based cost by Gael Forget
1714      (modifs in ecco, ctrl, autodiff)
1715    o Benign bug fix in initialization (spotted by M. Mazloff) of
1716      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1717    
1718    checkpoint58c_post
1719    o adjoint: finish NLFS adjoint and provide reference output in
1720      verification/global_ocean.90x40x15/results_ad_nlfs
1721    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1722      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1723      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1724      with SEAICE_CGRID defined.
1725    o move calendarDumps from "data" to "data.cal" and clean-up the code
1726      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1727    o add useEXF & useCAL flags (for now, set in hard-coded way)
1728    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1729      (were missing in NH mode, and wrong in quasihydrostatic mode).
1730      waiting for Chris updated version of calc_gw to add those CALLs.
1731    o fix bug in quasihydrostatic S/R ;
1732      add a test for this option: global_ocean.90x40x15.qshyd
1733    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1734      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1735    o add on/off flag useOffLine for package OFFLINE
1736    o seaice:
1737      - modify advection so that it works also on the C-grid
1738      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1739        problem in multi-tile runs with C-grid
1740      - add flags for clipping ice velocities and/or masking solver forcing
1741      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1742        C-grid solver
1743      - added a few comments to seaice_diffusion.F
1744      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1745        are now exclusive)
1746      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1747        required re-ordering the code a little:
1748       + make DAIRN global variable (defined in SEAICE)
1749       + move computation of the viscosities eta and zeta into a new separate
1750         routine (because I need to recompute them in seaice_ocean_stress.F)
1751    
1752    checkpoint58b_post
1753    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1754      update output.txt of exp. aim.5l_cs.thSI
1755    o various mnc cleanups and improvements:
1756      + shrink lookup tables by factor of ~4
1757      + better error reporting when running out of lookup space
1758      + able to handle longer path/file names (up to 500 chars)
1759    o adjoint:
1760      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1761      - TBD: "hidden" mom_vecinv recomp. in dynamics
1762    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1763     (allow to differentiate between forcing components using new integer flags:
1764      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1765     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1766    o ecco
1767      - enable trend removal from SSH anomaly obs.
1768    o adjoint
1769      - a fix for PmEpR when #undef EXACT_CONSERV
1770      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1771      - try to fix "hidden" recomp. in forward_step for NLFS
1772        (NLFS seems broken sometimes after I checked it in)
1773    o seaice:
1774     - add c-grid version of the dynamic solver:
1775       + three new routines that are the c-grid substitute lsr, dynsolver
1776         and ostres
1777       + put a few fields that were local to dynsolver into global common
1778         blocks, so that I can move the computation of stresses etc into
1779         seaice_lsr (saves coding but may break the adjoint).
1780     - replace more hardwired parameters by runtime parameters
1781     - add ice masks that mask the rhs of the implicit solvers where there
1782       is no ice (commented out in seaice_dynsolver, because i am not sure
1783       if this works properly), eventually this should replace the clipping
1784       of ice velocities in seaice_dynsolver to +/-40cm/s.
1785    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1786      include it only where its needed
1787    o move balancing of fluxes before the call of external_forcing_surf
1788    o seaice:
1789      - correct units of turning angles (now they are really in degrees)
1790      - move computation of GWATX/Y out of main routine into dynsolver
1791      - initialize GWATX/Y in seaice_init
1792    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1793      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1794  o seaice: add runtime flags for turning angles (default to zero)  o seaice: add runtime flags for turning angles (default to zero)
1795  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1796    and trend from exf forcing and ctrl control adjustments    and trend from exf forcing and ctrl control adjustments
# Line 921  o add two new packages Line 2708  o add two new packages
2708    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2709    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2710      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2711      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2712  o add offline package  o add offline package
2713  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2714    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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