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revision 1.350 by jmc, Wed Sep 22 15:55:24 2004 UTC revision 1.1149 by mlosch, Mon Aug 10 09:21:10 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
8      create a meaningful unit attribute for the time coordinate variable
9    o pkg/ebm: add plenty of missing "_d 0" ;
10       update results of experiment global_ocean_ebm (fwd + adjoint tests)
11      Notes: several pieces of code only works for (very) specific set up
12       (domain size, lat range, etc ...); should be documented & stop if one
13       of those assumptions is not meet.
14    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
15       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
16          and offline_exf_seaice (seaicetd + adjoint).
17    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
18       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
19        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
20    o few changes to pass when compiling with strick checking of arguments
21       across S/R (allow to find few bugs in S/R calls).
22    o pkg/seaice:
23     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
24       2d-fields, for slightly better performance
25    
26    checkpoint61t
27    o pkg/seaice:
28     - remove unused variables in seaice_evp
29     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
30    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
31       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
32       each processor opens a different file (a fix from Matt).
33    o cg2d:
34       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
35       this reduces number of EXCH calls by 2 when using exch2.
36       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
37       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
38    o pkg/thsice:
39       add code for Near Infra-Red albedo (from Jeff)
40       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
41    o ini_model_io:
42       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
43       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
44       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
45    
46    checkpoint61s
47    o pkg/exch2 (exch2_rxN_cube*):
48       remove last BARRIER (no need to synchronise after getting data from shared
49       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
50    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
51      and generate new output (for the 2 tests) using default rotationPeriod.
52    o pkg/exch2:
53      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
54        (was already the case with AUTODIFF_EXCH2 defined)
55      - add bj in exch2 arrays and S/R.
56      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
57        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
58    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
59      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
60        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
61      - verification experiment natl_box.longstep
62    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
63      allow different versions of ifort (8 or 9) and different versions
64       of mpi (mpich or mpich2) to be used with the same optfile.
65      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
66       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
67    o pkg/seaice:
68      fix previous modif (3-level field removed) for old-pickup reading
69    
70    checkpoint61r
71    o pkg/seaice:
72     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
73      1. introduce fields for time step (N-1)
74      2. do not use levels 2 and 3 anymore (but keep them)
75      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
76         includes changes to pkg/thsice/thsice_get_velocity.F,
77         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
78         pkg/obcs/obcs_apply_uvice.F.
79     - completely remove code for leap-frog time stepping for second order
80       advection
81     - adjusted adjoint accordingly;
82       gradient checks have improved by an order of magnitude!
83    
84    checkpoint61q
85    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
86     - the boundary conditions along open boundaries are unclear, because the
87       associated masks are set to zero and are thus treated as closed when
88       applying the slip-boundary conditions.
89     - move initialisation of grid variables from seaice_init_varia to _fixed
90    o adding doc/diags_changes.txt
91    o model/src:
92      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
93       to avoid "_diags" naming if no relation to pkg/diagnostics.
94      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
95       file and only call PLOT_FIELD_XYZ if debugMode=T.
96      remove few PLOT_FIELD_XY calls outside initialisation.
97      remove few unnecessary BARRIER.
98    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
99      of salt_plume package in Southern Ocean
100    o pkg/thsice:
101     - fix hOceMxL in overlap (needed for sea-ice advection);
102       update output of experiment global_ocean.cs32x15.icedyn.
103    o pkg/seaice:
104     - make the (placeholder-)tracer IceAge a little more meaningful
105      by avoiding ridging of age due to convergent ice flow
106     - add diagnostics for surface temperature, atmospheric and oceanic
107       heat flux, and atmospheric and oceanic ice growth
108    
109    checkpoint61p
110    o eesupp (global_max & global_sum):
111     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
112     - remove starting & endding barrier (no longer needed)
113    o pkg/mdsio, writelocal:
114       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
115       (remove the STOP): uses shared buffer IO to store data from all threads
116       and then let master-thread write nThreads tiles.
117    o pkg/mdsio (read/write field):
118     - tiled IO done in 1 piece (all levels at a time);
119     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
120     - multi-threaded: allow to read/write local (non-shared) array
121       (was already working with singleCpuIO ; now works also without);
122       => no longer needs barrier call after reading a file (added inside
123       mds_read/write field).
124     - move barrier calls outside gather/scatter_2d to mds_read/write_field
125    o pkg/obcs/exf
126      - exf_getffieldrec.F: add a few ". _d 0" and
127                            add code to catch the case fldperiod = 0.  
128      - obcs_precribe_read.F: change if statements so that they match
129                              the variable type (_RL)
130      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
131        exf_iprec) as part of namelist EXF_NML_01
132    o pkg/mdsio:
133      - read/write tiled (local) files: read/write 1-level tile chunk at a time
134        (instead of segment of length sNx); expected to speed up tiled IO.
135    o pkg/exch2:
136      - take buffer copy from/to array out of S/R exch2_send/recv into new
137        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
138        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
139      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
140      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
141        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
142        including Topology header file (and common blocks).
143      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
144        remove 2nd exch call in exch2_s3d_rx (no longer needed).
145      - document S/R arg. list (+ update some comments)
146    o pkg/seaice:
147      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
148        temperature and humidity over sea ice based on climatological values.
149      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
150        of LSR (this change is expected to change the results slightly because now
151        it uses slightly difference moduli from the second last LSR solution, but
152        that is more consistent with the stress computations; this part of the code
153        is not tested in the verification experiments)
154      - fix diagnostics for flux of ice in case of B-grid
155      - turn strain rates eij and press into global fields within global
156        common block in SEAICE.h for more straighforward diagnostics
157      - fix diagnostics for principal stress components, press, zeta, eta
158        to give something meaning full
159    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
160      new output (all 4 tests) using default rotationPeriod.
161    o pkg KPP:
162      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
163      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
164        and normal grid from 1 to Nr)
165    o Fix computations of L4rdt in mom_calc_visc.F
166    o eesupp:
167      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
168      should be called before a "stop" if we know that all process are going
169      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
170    
171    checkpoint61o
172    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
173    o model/src/ini_curvilinear_grid.F:
174       compute angleSin/CosC when they are not read from a file
175    o pkg/seaice:
176       add pseudo time stepping for LSOR
177    o pkg/exch2:
178       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
179    o pkg/seaice:
180       Adding separate sea ice albedo, drag coefficients, and HO in Southern
181       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
182    o SingleCpuIO:
183       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
184    o pkg/seaice:
185       put exchanged variable in (local) common block for MPI+Multi-Threads
186       to work (necessary with exch1, and for now with exch2 too).
187    o verification: to get more experiments tested with mpi, mth and mpi+mth,
188      change tiling of:
189       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
190       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
191      update output of exp:
192       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
193       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
194      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
195                       (note: output.txt generated on faulks using only 1 tile)
196    o eesupp & mdsio (SingleCpuIO):
197     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
198       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
199       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
200     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
201     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
202       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
203    o pkg/exch2:
204     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
205       read parameter file "data.exch2" if it exists; otherwise try default regular
206       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
207     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
208       with new code (not to be used, just as a backup solution).
209     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
210       in utils/exch2/input.
211    
212    checkpoint61n
213    o eesupp & mdsio (SingleCpuIO):
214      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
215        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
216        receive real*4 array (instead of real*8) to read/write 32.bit files.
217        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
218         and remove new mapping S/R)
219    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
220      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
221        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
222        when using exch2. Add S/R to map global io-buffer to global model array.
223      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
224    
225    checkpoint61m
226    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
227      and add 3 other S/R for other types (R4,R8,RS).
228      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
229    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
230     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
231     - reduce number of macro definitions (keep only those which are used);
232       can always call directly the corrresponding S/R if needed.
233     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
234       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
235     Fixed wrong type of arg in:
236       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
237       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
238     To fix: global_sum of var in common block is wrong (multi-threaded) in:
239       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
240     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
241    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
242      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
243    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
244    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
245      edges are closed (zero depth); might happen with "blank tiles";
246      for now, disabled if using OBCS.
247    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
248      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
249    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
250      to reduce length of 1.D array print in STDOUT.
251    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
252      + use 48 tiles (16x8): this will allow to test "blank tiles".
253    o start to test MPI + multi-threaded (change testreport to skip tests
254      where number of tiles do not match).
255    o genmake2: add option "-omp" to turn on Open-MP ;
256      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
257    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
258      and keep the original tile numbering. Note: compatible with old
259      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
260    
261    checkpoint61l
262    o Overlaps had been forgotten in calculating ijk keys : fixed
263    o fix cyrus makedepend for gcc 4.4
264    o experiment fizhi-cs-aqualev20:
265      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
266      and generate new output. Note: new output is much closer to the old
267      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
268      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
269    o pkg/fizhi:
270     - change to avoid indices going deliberately over array-bounds
271     - remove unnecessary MPI stuff
272     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
273     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
274       does not go over array-bounds and therefore returns reliable output.
275     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
276       this S/R has 4 output arguments, which are used inside "get_alarm";
277       when it is called with the same variable "ndum" in place of several
278       output arguments, this produces weird side effect inside "get_alarm"
279      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
280       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
281       address) and produces error.
282    o tools/gemake2: (March 27-29 2009)
283      with option "-mpi": link *_mpi files from "MODS" dir (this is what
284      testreport does).
285    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
286    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
287       update lab_sea.lsr & lab_sea.salt_plume results
288    o pkg/seaice:
289      Major overhaul of the LSOR solver: change discretization from original
290      finite differences to finite volume. The old routine is still in the
291      file seaice_lsr.F and can be turned on with the CPP-flag
292      SEAICE_OLD_AND_BAD_DISCRETIZATION
293      Along with this change, the discretization of the strain rates is changed.
294      The same flag turns on the old discretization in seaice_calc_strainrates.F
295      All verification experiments with seaice are affected (except for
296      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
297      results by setting the above flag.
298      Further changes involve changes in defaults:
299      - ALLOW_FLOODING is defined and turned on by default
300      - SEAICEadvSnow = .true. is now the default
301      - SEAICEadvSalt = .true. is now the default
302      - SEAICEadvAge  = .true. is now the default
303      - SEAICE_clipVelocities  = .false. is now the default
304                                         (as per J. Zhang's recommendation)
305      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
306        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
307      - seaice_growth: replace computation of UG by a simple copy from wspeed
308    
309    checkpoint61k
310    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
311      seaice_lsr: fixed a few metric terms,
312                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
313                  add more debugging diagnostics
314      seaice_evp: removed superfluous many metric terms of FV discretization
315                  of stress divergence
316                  affects lab_sea, lab_sea.hb87
317      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
318                  of stress divergence for non-evp solver
319                  (this part is not tested anywhere)
320      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
321                  they were effectively only half slip
322                  affects lab_sea.hb87
323      updated all relevant verification experiments (except lab_sea//output_adm.txt
324        which was left over, but fails at level 7 & 6)
325    
326    checkpoint61j
327    o pkg/seaice: turn a few hard wired parameters into run time parameters
328    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
329      time in seconds as promised by the usints in seaice_monitor and exf_monitor
330    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
331      that are not cubed-sphere grids
332    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
333    o pkg/ctrl:
334      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
335    o non-hydrostatic (calc_gw.F):
336      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
337      update output of exp. global_ocean.cs32x15.viscA4
338    o remove backward compatibility for thetaMin,phiMin
339      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
340    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
341      interpolated wind field not only for curvilineargrid=.true., but also
342      for a rotated grid (rotateGrid=.true.)
343    o pkg/exf: add capability to bypass interpolation for runoff
344      by setting yet another CPP-flag
345    o eesupp/src, B-grid exchange:
346      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
347    o autodiff
348      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
349      allows to switch to single-prec common blocks;
350      corresponding switch occurs in tamc.h, integer isbyte
351      TAF store directivs "byte" and "kind" seem equivalent;
352      Most tamc.h have been updated correspondingly.
353    
354    checkpoint61i
355    o autodiff:
356      fix autodiff_sore/_restore indices for obcs
357      (spotted by I. Hoteit, M. Mazloff)
358    o pkg/autodiff, pkg/ctrl:
359      Add flag to reduce all tapelev I/O to single-prec.
360      In data.ctrl set
361        doSinglePrecTapelev = .TRUE.
362    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
363      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
364    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
365      real fresh water flux (not yet)
366    o pkg/mdsio & rw:
367     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
368     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
369    o pkg/flt:
370     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
371       init_fixed & ini_varia.
372     - clean-up & simplify linear interpolation S/R:
373       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
374     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
375     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
376     - add vert. coordinate & horiz. indices to output files.
377     - change vertical position in initial condition, from index to depth [m].
378     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
379       (easier to get to a curvilinear grid) ; delX,delY no longer used.
380    o pkg/ggl90: a few modifications:
381     - fix bottom boundary condition, and interpolation of KappaE
382       near top and bottom
383     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
384     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
385     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
386    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
387      (maintain temporary backward compatibility, until next checkpoint)
388    
389    checkpoint61h
390    o pkg/diagnostics with "periodic averaging diagnostics":
391      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
392    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
393    o pkg/obcs: fix loop ranges for balancing code
394    o pkg/flt:
395     - improve criteria for finding which tile owns a float.
396     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
397    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
398      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
399      with ocean biogeo)
400    o pkg/flt:
401     - do some cleaning and fix the restart ;
402     - add output.txt in flt_example/results to get this pkg tested.
403    o genmake2: add an EXTENDED_SRC option and flag.
404       for now, cannot be turned on on command line (only through genmake_local)
405    o pkg/mdsio: read/write vector:
406     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
407     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
408       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
409     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
410      (drop to 4 digits matching for grad). But this test does not look very
411      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
412    
413    checkpoint61g
414    o pkg/flt:
415      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
416       + make OPTIONS file more standard.
417      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
418      - fix _BYTESWAPIO CPP-Flag
419      - standard reading of file-parameter "data.flt"
420      - fix argument list of S/R FLT_RESTART
421      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
422    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
423    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
424      a still unfixed compiler/optimization bug
425    
426    checkpoint61f
427    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
428      update results of global_ocean.cs32x15.icedyn test.
429    o move getcon.F from model/src to pkg/fizhi.
430    o pkg/exf: add parameter for extrapolation of temp up to the surface
431       and option to prevent negative evap (in bulk_largeyeager04 only).
432    o Prather Advection scheme: fix tracer conservation for divergent flow
433      (e.g., when using NonLin Free-Surface).
434    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
435    o gmredi (Visbeck-variable-K):
436     - add more parameters to Visbeck-variable-K.
437     - use a 5 points average for dSigmaR in Visbeck-K calculation
438       (more "homogenous": same stencil and same weights as in dSigmaH)
439     - update output of ideal_2D_oce experiment.
440    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
441      (#undef REAL4_IS_SLOW)
442     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
443       coordinate variable
444     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
445       (surface forcing fields), removes some of the functionality
446     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
447     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
448       probably not all: copy _RS surface flux fields to RL field before
449       calling DIAGNOSTICS_FILL
450     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
451       real*4 (CALL EXCH_*_RS) versions.
452     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
453       (generate new output).
454    
455    checkpoint61e
456    o gmredi (Visbeck-variable-K):
457      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
458      - change computation of Visbeck-K where Slope > Smax :        
459        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
460        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
461    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
462      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
463    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
464    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
465      does not become too large (to avoid precision problems in implicit-diffusion
466      solver); update ideal_2D_oce output.
467    o pkg ggl90:
468      - in ggl90_cal.F: compute only one set of visc/diff, used to
469        step forward TKE/T/S/momentum
470      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
471        have Prandlt =1)
472    o gmredi (fm07):
473      - add lower limit on Transition layer thickness + lower limit on 1/lambda
474      - allow to set few more params from data.gmredi
475    o pkg ggl90:
476          - add missing sqrt(2) factor in computation of mixing length
477            scale in ggl90_calc.F
478            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
479    
480    checkpoint61d
481    o adjoint modifs
482      - adapt to new field rhoInSitu
483      - allow to revert from StoreDynVars2D, StoreDynVars3D
484        to individual fields
485        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
486    o store 3-D (in-situ) density in commom block (DYNVARS.h)
487     - save 1 rho computation.
488     - no longer modify T & S inland when using down_slope pkg.
489    o gad_som : allow to switch to SOM advection for T & S without corresponding
490      pickup files (using new S/R: MDS_CHECK4FILE).
491    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
492      (for useSingleCpuIO to work in multi-threaded)
493    o pkg/shelfice:
494     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
495       with SHELFICEtopoFile in data.shelfice
496     - move code for reading ice shelf topography and modifying hFacC into separate
497       subroutines of the shelfice package
498     - separate initialisation of "fixed" and "variable" variables
499     - kTopC is not (yet) replaced by kSurfC, although this is possible
500    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
501    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
502      and rename:
503      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
504      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
505    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
506    
507    checkpoint61c
508    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
509      to add mass source/sink of fluid in the interior (3-D generalisation
510      of oceanic real-fresh water flux).
511    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
512    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
513    o new pkg: down_slope
514      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
515      - presently, modify T & S inland (dwnslp_calc_rho.F).
516        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
517      - implementation for ocean in P-coords not tested.
518      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
519    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
520      (to facilitate conversion of oceanic pkg to p-coordinate).
521    o change FIND_RHO to FIND_RHO_2D :
522      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
523    o new pkg: cheapaml
524    
525    checkpoint61b
526    o exch2:
527      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
528      - no longer depend on the order sequence (N,S,E,W).
529      - 3rd exchange no longer needed (tested with 24 tiles).
530      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
531      - exch_UV_A-grid readily available (but not yet tested).
532      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
533      (both are no longer needed) in exch_uv: no effect in forward run; but
534       get truncation error differences with adjoint exch.
535    o exch2:
536     - change index-bounds storage (moved from target to local tile,
537       more intuitive this way) ; rename/remove some variables.
538     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
539    
540    checkpoint61a
541    o exch2/matlab-topology-generator:
542      fix bug in index bounds for N-S internal exchange (hard to tell if this
543      had any effect on the solution).
544    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
545      is exceeded
546    o testreport: modify syntax of awk, so that it works also with
547      awk, and not only with nawk and gawk
548    
549    checkpoint61
550    o autodiff
551      Change default for TAF usage by removing argument '-nonew_arg'
552      This changes TAF subroutine argument list (ordering of active var.)
553      Omission of this flag leads to incompatibility w.r.t. TAMC
554      To restore TAMC-compatibility, need following modifs:
555      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
556      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
557      Tested TAF version is 1.9.22
558      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
559    
560    checkpoint60
561    --->>> This is the last checkpoint for which generating the adjoint
562    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
563    --->>> by default.
564    --->>> Future checkpoints will ommit this flag by default.
565    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
566    o pkg/grdchk: Add gradient check to etan0 perturbations.
567    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
568    o pkg/autodiff: more flexibility in zeroadj.
569      model/src: modifying do_oceanic_phys.F accordingly.
570    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
571    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
572      special setup of gmredi for which the adjoint is stable
573      enough for parameter optimization.
574    o bridging the gap between eddy stress and GM.
575      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
576          along with a change in CPP option (now ALLOW_EDDYPSI).
577      -> when using GM w/ GM_AdvForm:
578          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
579          is applied either in the tracer Eq. or in momentum Eq.
580          depending on data.gmredi (intro. GM_InMomAsStress).
581      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
582      The key modifications are in model/src/taueddy_external_forcing.F
583      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
584    
585    checkpoint59r
586    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
587      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
588      fix option to read coriolis(@ cell-corner) from files with CS-grid.
589    o pkg/mnc: add some attributes to standard 1D-coordinate variables
590    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
591      mass points, when using mnc for output
592      - add runtime parameter (missing_value, missing_value_int) to override
593        default (which is the value of getcon('UNDEF'))
594    o pkg/mnc: prepare mnc for the actual use of missing values with the
595      diagnostics package: small fix in mnc_cw_readwrite.template and more
596      initialisation of never used fields
597      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
598      versions
599    o pkg/thsice/thsice_ini_vars.F added default initial values so that
600      thermodynamics sea ice solver does not blow up when some initial fields
601      are missing.
602    o move from external_forcing_surf.F to ini_forcing.F
603      the p-coord. hack consisting in using pLoad to set phi0surf ;
604      update output of tutorial_global_oce_in_p (affected @ truncation level).
605    o Freshen up a bit hs94.1x64x5, notably:
606      remove rotationPeriod and tRef=5*0. (adjoint only), and add
607      exactConserv=.TRUE.
608    o pkg/generic_advdiff:
609      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
610      applies to files where Temperature & Salinity 2nd Order moments are used.
611    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
612      this uses a dynamically allocated internal state data structure
613      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
614      and requires a fortran 90 compiler
615    
616    checkpoint59q
617    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
618       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
619    o Refresh tutorial_global_oce_biogeo, notably:
620      - change bathymetry (put back seamounts in ACC, use hFacs)
621      - change EOS (POLY3 --> JMD95Z)
622      - use Bryan-Lewis vertical diffusivity
623      - use multidimensional advection
624      - remove old virtual virtual in dic pkg, now done through ptracer pkg
625      - change a couple of parameters in dic pkg
626    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
627    o pkg/obcs: change default to OBCSfixTopo = .true.,
628      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
629      - replace "debugMode" with "debugLevel .GE. debLevB"
630    o implementation of TAF directives for gchem,cfc,dic
631    o remove "exp5" (replaced by tutorial_deep_convection).
632    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
633      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
634      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
635      --> changes results in exp4, seaice_obcs
636    o tutorial_deep_convection :
637      update the set-up and increase resolution and domain size ; start
638      from pseudo initial conditions = output at t=120mn in order to see
639      something happening when running testreport.
640    o pkg/seaice: add os7mp as an advection scheme
641                  add check for advection schemes
642                  add a flag for restoring T and S underneath sea ice
643    o pkg/my82: add netcdf-support and diagnostics
644    o thsice pkg:
645      - Now hsMax limits snow height by turning it into ice following
646        flooding scheme (and now conserving energy)
647      - Slight rewriting of the formula in thsice_calc_thick.F
648      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
649      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
650    
651    checkpoint59p
652    o gchem / dic / cfc :
653      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
654      - add new parameter files: "data.dic" & "data.cfc" ;
655      - various re-arrangement in initialisation & header file ;
656      - fix tutorial_global_oce_biogeo for multi-threaded test.
657    o pkg/dic: test for "pickup_dic" file when restarting ;
658      if no pickup-file, can restart with a re-initialised pH (same as it did
659      before) providing pickupStrictlyMatch is set to False.
660    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
661      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
662    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
663      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
664    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
665     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
666       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
667    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
668       scheme to use for vorticty-term ;
669     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
670       (with default selectVortScheme, return to original discretisation)
671     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
672    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
673    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
674      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
675      also fix diagnostics VISCAHW & VISCA4W.
676    
677    checkpoint59o
678    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
679    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
680      move a few statemens out the main loop into separate loops
681    o pkg/shelfice:
682      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
683        (kg/m^2/s), does not break tests, because in verification/isomip,
684        rhoConstFresh=rhoConst (by accident)
685      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
686      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
687        new file model/src/seawater.F, so that they are available for all pkgs.
688      - convert potential temperature into in-situ temperature. This changes the
689        isomip tests => update tests
690    o add a flag writePickupAtEnd (default=true) to be able to suppress
691      writing a pickup at the last timestep
692    o tools/mpack-1.6 :
693      - disable automake (not working) and autoconf (not needed).
694      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
695        also cleaner with much less compilation warnings.
696    o pkg/profiles:
697      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
698      (for "less than 32 characters name" compiler requirement)
699    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
700      conditions that have a different sampling frequency than S/T/U/V obcs
701    o pkg/diagnostics (stats-diags):
702      - fix global Min/Max in case 1 processor get only empty tiles
703    o genmake2: replace (4 times)
704         make genmake_tc_1.o >> genmake_warnings 2>&1
705      with
706         COMM="$CC $CFLAGS -c genmake_tc_1.c"
707         echo $COMM >> genmake_warnings
708         $COMM >> genmake_warnings 2>&1
709      to make genmake2 always see the value of CC as specified in the optfile.
710    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
711      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
712      - modify verification advect_cs test to test SOM-advection on CS-grid.
713    o pkg/ctrl:
714      - Rewrite of ctrl_map_ini_ecco.F,
715        introducing a generic routine (ctrl_map_ini_gen.F).
716      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
717    
718    checkpoint59n
719    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
720      number in dedicate array "hdiag":
721      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
722        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
723      - many small changes (integer format) for large number of diagnostics
724      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
725        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
726    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
727      usingSphericalGrid, this allows to define the rotated grid coordinates
728      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
729      geographical coordinates according to the inverse of the rotation defined
730      by the Euler angles, so that Coriolis parameter and online-interpolation by
731      exf works with the geographical coordinates on XC/YC/XG/YG.
732      Naturally, this feature does not work with all packages, so some
733      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
734      profiles), because there the coordinates are assumed to be regular
735      spherical grid coordinates.
736    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
737      - introduce isopycnal diffusion coefficient control.
738    o tools/adjoint_options:
739      - additional control vector components.
740    o pkg/mnc: have mnc create marginally meaning full coordinate variables
741      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
742    o pkg/mypackage:
743      - add example of read/write pickup for state-var ;
744      - add entry points to the main code for state-vars diags & write-pickup.
745    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
746      transitions for useExfYearlyFields
747      - add new subroutine that determines the file to read from for
748        use*YearlyFields = .TRUE. and .FALSE.
749      - add a verification experiment to global_with_exf that tests
750        useExfYearlyFields with USE_EXF_INTERPOLATION defined
751    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
752      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
753      subroutines (which could be generated from a template, because they are
754      almost identical), for now they are included in obcs_prescribe_read.F for
755      simplicity
756    o pkg/exf:
757      - add a little more diagnostic to exf_interp_read (in analogy to
758        mds_read_field, can be turned off with debugLevel < debugLevA=1)
759      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
760        ugly but fast by unrolling short inner loops, inserting a unroll=8
761        directive in routine lagran, and splitting a loop and making do while the
762        outermost loop (the latter requires the intoduction of index arrays)
763    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
764    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
765      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
766    o verification/seaice_obcs: updated for restart test and latest options
767    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
768      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
769      for now this is only available for the C-grid code and also within
770      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
771    
772    checkpoint59m
773    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
774      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
775    o gad_som : fix flux output (& diagnostics) to have same units as other  
776      advection scheme fluxes (was previously multiplied by deltaT).  
777    o added verification/seaice_obcs both to test seaice open boundaries
778      and to provide an example matlab scrpt for generating them
779    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
780    o pkg/salt_plume: clean up salt_plume_frac.F to
781      remove redundancy in PlumeMethod 1 and 4
782    o pkg/kpp: added saltplume diagnostics
783    o pkg/obcs and pkg/seaice:
784      - do not set uice and vice to zero when OB*icefile are unspecified
785      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
786      - moved seaice tracer obcs after call to seaice_growth
787    o pkg/salt_plume: added various options for salt plume depth
788      criterion and for vertical distribution of the salt
789    
790    checkpoint59l
791    o pkg/ptracers: new version of ptracers pickup:
792      read meta file and write only fields which are needed to restart.
793      ( same logic as main pickup file ; also using pickupStrictlyMatch )
794    o pkg/seaice:
795      - add timescale for melting due to warm mixed layer as a means of
796        setting SEAICE_availHeatFrac more conveniently
797      - add a CPP-flag/runtime parameter check for flooding algorithm
798      - reformulated availHeat in seaice_growth.F to be independent of AREA
799    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
800      unit changes
801    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
802    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
803      SX vector computer.
804    o pkg/seaice:
805      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
806        seaice forcing fields can now be read only through pkg/exf
807      - removed some unused halos
808    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
809    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
810      or U/VICE from U/VWIND before computing U/VSTRESS
811    
812    checkpoint59k
813    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
814      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
815    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
816      all experiments pass when compile with un-initialised var. checking option.
817    o added pkg/salt_plume
818    o script to test restart (for now, in MITgcm_contrib/jmc_script)
819    o pkg/seaice: new read/write pickup version.
820      read meta file and write only fields which are needed to restart.
821      ( same logic as main pickup file ; also using pickupStrictlyMatch )
822    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
823    o lab_sea.hb87: modify the domain & update output.hb87.txt :
824      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
825      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
826      process. Fixed here by closing the domain at the Northern boundary.
827    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
828    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
829      a set of consecutive levels in/from a 3-D array.
830    o pkg/ptracers:
831      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
832      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
833    
834    checkpoint59j
835    o in pkgs: dic, obcs, offline, rbcs:
836      standard way to compute coeff. for time interpolation between 2 time reccords
837      which retains full precision (& make results less dependent on compiler).
838      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
839    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
840      packages instead of reading ice cover and wind speed separately
841    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
842     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
843      to allow to compile customized code before the update)
844    o cleaning-up:
845      - fix CPP instruction syntax in pkg/obcs
846      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
847        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
848      - fix some threads issue in IO parts.
849    o pkg/dic:
850      - add tons of "_d 0" (--> much better testreports !)
851       and then update outputs of tutorial_global_oce_biogeo
852    o pkg/mom_fluxform:
853      add a special version of momentum advection intended to conserve momentum
854      next to a bathymetry step or a coastline edge. (default = off = #undef)
855    o new read/write pickup version:
856      - for now, only implemented for main (mdsio) pickup file.
857      - write out only what is needed to restart; merge pickup_nh , pickup_ph
858        and main pickup together.
859      - read meta file; read only what is needed to restart; stop if a field
860        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
861        if it make sense (even if the restart is not perfect).
862      - if no meta file, assume that pickup to read corresponds exactly to
863        a pickup that would currently be written.
864      - read pickup written in the old format (until checkpoint59i) if it
865        recognizes an old meta file (no field-list).
866      - add a meta file in exp. which starts from a pickup: 2 cases:
867        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
868         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
869        b) a meta file describing the content of the associated pickup file
870         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
871    o pkg/mdsio & pkg/rw:
872      - new routine to read a meta file ; new set of routine to read
873        Multiple-fields file (with meta file).
874    o added open boundary conditions capability for seaice
875        HSNOW, HSALT, UICE, and VICE
876    
877    checkpoint59i
878    o adjoint:
879      * fix multiDimAdvection adjoint
880        (partial recomputation problem by TAF for fVerT(:,:,kDown)
881        and comlev1 size definition (maxpass vs. max. number of tracers)
882      * verification/global_ocean.90x45x15 adjoint now tests
883        NLFS and multiDimAdvection using DST3 (=30)
884      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
885    o pkg/kpp: add "_d 0" to real constant (if missing);
886      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
887      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
888    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
889      for internal parameters related to restart process (formerly from PARAMS.h)
890      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
891    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
892      as argument. (only atm2d & obcs write_pickup have not yet been updated)
893    o pkg/monitor:
894      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
895      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
896      - account for deep Atmosphere factor and density factor (anelastic)
897    o added open boundary conditions capability for seaice HEFF and AREA
898    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
899      thermodynamics
900      - requires a little reorganization, which affects the testreport results
901        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
902        so that now the conservative form is tested
903      - add a few comments
904    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
905    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
906    o add new diagnostics to seaice: advective, diffusive fluxes (only for
907      multidim-advection, for scheme 2 they are not filled) and transports,
908      thermodynamic growth rates
909    o change units of EmPmR (inside the code, + within coupling interface)
910      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
911      Affects results @ truncation level (cg2d match) and update output of
912       experiments: lab_sea(6), global_ocean.90x40x15(10),
913      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
914      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
915      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
916      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
917    
918    checkpoint59h
919    o pkg/exf:
920      - improve vectorization by moving if-statement out of loops in
921        exf_mapfields, exf_radiation
922      - exf_bulkformulae.F: introduce 2D fields and vectorize code
923    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
924    o testreport:
925      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
926        monitor & update offline_exf_seaice exp. output.
927      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
928    o pkg/seaice:
929      - bug fix in the evp solver: boundary conditions were affected be
930        masking of zMax/zMin (changes results)
931      - minor bug fix in boundary conditions in seaice_calc_strainrates
932        (changes results for no_slip)
933      - seaice_lsr.F: make interpolation of eta dependent on boundaries
934      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
935      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
936        stress formulation and no-slip boundary conditions
937    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
938      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
939    o pkg/seaice: a first HSALT time stepping equation has been checked in
940    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
941      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
942      without requiring DO-IF statements
943    o pkg/thsice:
944      use continuous power-law function for partition of energy between lateral
945      melting/freezing and thinning/thickening ; old code using step function
946      still available with #undef THSICE_FRACEN_POWERLAW
947      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
948    o testreport: change AD testing : check against results/output_adm.txt
949      using same scripts as for forward test.
950    
951    checkpoint59g
952    o adjoint testing: in preparation for changing testreport:
953      - output format: cost and grad written on separated lines
954      - ad output results in directory "results" (instead of "results_ad")
955    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
956    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
957    o pkg/ecco: allow user defined cost function contributions
958    o testreport:
959      Allow to choose (per experiment) the list of tested output variables
960       and the main variable (used to issue a pass/FAIL ) ;
961      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
962      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
963      Also modify printing of summary:
964       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
965       b) echo the list of tested variables in the individual summary.txt of
966          each experiment.
967    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
968      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
969      (but still depend on the tile decompostion of the domain).
970    o pkg/seaice: change a discretization detail to make the B-grid code
971      "more symmetric". This change is likely to remove all "ridges/leads" that
972      where quasi-aligned with the grid in B-grid solutions. It may also be
973      the solution to the stress coupling issues with the B-grid.
974    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
975      remove .cvsignore from input dir. (since testreport no longer run here).
976    o pkg/thsice:
977     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
978     - fix reshaping of sea-ice just after advection:
979       melt all the ice only if ice-volume is too small.
980     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
981       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
982     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
983    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
984      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
985    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
986      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
987      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
988      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
989      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
990      -> update output.txt
991    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
992     this affects truncation error: -> update output.txt of exp:
993      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
994      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
995    
996    checkpoint59f
997    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
998    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
999      a bounded range (in forward mode)
1000    o pkg/ecco, ctrl, autodiff and mom_common:
1001     internal parameter controls, completements of implementations
1002    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1003    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1004      (not seem any difference in testing results).
1005    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1006       at face corners.
1007    o pkg/generic_advdiff:
1008     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1009      loop range indices for computing vertical advection tendency
1010      and do the calculation in the interior only (no overlap) ;
1011      for now, only implemented for SOM advection (to save CPU time).
1012     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1013    o exch2 adjoint
1014      First set of changes:
1015      - add exch2 hand-written adjoint templates
1016      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1017        This will require cleanup in pkg/autodiff/*.F
1018        (changed routines currently kept separate in verif. code/)
1019      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1020        that used to hide exch2 or cubed-sphere specific code
1021        (commented via 'cph-exch2')
1022    o pkg/seaice
1023      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1024    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1025       output of global_ocean.cs32x15.thsice .
1026    
1027    checkpoint59e
1028    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1029      for B-grid vector (not yet tested) and C-grid vector (<- only used
1030      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1031    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1032      (#ifdef ALLOW_SALT_PLUME)
1033    o gather_2d/scatter_2d: removed halo regions
1034    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1035      scheme and the corresponding test case (under front_relax dir). For now,
1036      only available with Skew-flux form and not yet tested in realistic set-up.
1037      adjoint: store directives updated, but gradient checks deteriorated,
1038      so maybe GM/Redi adjoint is now broken.
1039    o seaice adjoint
1040      * add AREA, HEFF, HSNOW as control variable
1041        (should not change lab_sea results)
1042      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1043    o pkg/seaice:
1044      * added computation of saltFlux in seaice_growth;
1045        For time being, sea ice salinity is assumed constant
1046        contribution of snow flooding to freshening of sea ice is neglected.
1047        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1048        defaults to 0.0 in order to maintain backward compatibility.
1049        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1050      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1051      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1052        heat content used to melt or grow ice
1053      * commented out cap of HICE: it helps keep ice thinner
1054      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1055      * applied OBCS T/S mask to HEFFM sea ice mask
1056    
1057    checkpoint59d
1058    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1059     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1060     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1061    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1062     and change default value of parameter "GM_Small_Number";
1063     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1064       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1065       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1066    o pkg/ecco: cost function when applying pkg/smooth to controls
1067    o pkg/ctrl: add forcingPrecond run time parameter
1068    o pkg/seaice:
1069     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1070     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1071       changes verification/lab_sea
1072     - rearrange implicit part of u-equation in LSR solver to make it easier to
1073       read, understand, and debug. This causes changes at the truncation level.
1074     - fix (serious) bug in the boundary conditions (sign error in the implicit
1075       part) of the LSR solver. Changes all LSR results.
1076     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1077       is initilized with small values - does not change lab_sea results.
1078     - added HsnowFile initialization capability
1079    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1080     initialization of pkg/smooth and application to control vector
1081    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1082    o dependencies: pkg/profiles requires pkg/cal
1083    o pkg/profiles:
1084     - added option ALLOW_PROFILES_GENERICGRID
1085         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1086         that interpolation information (grid points and coefficients) is provided
1087         within the netcdf input files.
1088         -> sample matlab scripts can be found in MITgcm_contrib/gael
1089         that allow you to prepare netcdf input files.
1090     - also modified: cleaner include statements, cleaner error print statements,
1091       cleaner stops when error, and more tests of the netcdf input files consistency.
1092    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1093    o pkg/seaice:
1094     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1095       requires a new routine: seaice_diagnostics_fill.F
1096     - make sure that seaice does not move if not forced (pressure replacement
1097       method, Hibler and Ip, 1995), changes results
1098     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1099     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1100       It is turned off by default (=-1.), because it changes the results.
1101     - make it possible to read AREA from a file, too.
1102    
1103    checkpoint59c
1104    o add S/R and diagnostics for oceanic mixed-layer depth
1105    o move GMRedi call after all vertical mixing schemes (including KPP)
1106    o pkg/thsice:
1107     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1108      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1109    o pkg/obcs:
1110     - bug fix for balance code
1111    o pkg/seaice:
1112      - allow values of SEAICE_elasticParm > 1
1113      - add new parameter SEAICE_evpTauRelax as an alternative
1114        to SEAICE_elasticParm
1115      - make lsr boundary conditions free slip (by default), changes result
1116      - add code for no slip boundary conditions for lsr
1117      - set minimum of zeta to zero (and not 4e8) (changes results)
1118      - add a cap on AREA after advecting AREA if seaice_growth is not called
1119    o change calculation of Visbeck K:
1120      - no longer depend on tapering scheme; instead, compute slope (limited
1121        by GM_maxSlope). this is equivalent to what was comuted before with
1122        clipping or linear tappering.
1123      - fix vertical averaging (wrong by 1/2 level)
1124      - leave the old version (but will not be maintained) within
1125        #ifdef OLD_VISBECK_CALC / #endif
1126      - update output of exp. ideal_2D_oce
1127    o change error catch in calc_r_star to improve vectorization
1128    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1129      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1130    o adjoint:
1131      Re-organized adjoint checkpointing according to Matt Mazloff
1132      (but with modifs/completions/cleanups)
1133      Storing is now bundled into large arrays to optimized I/O
1134      (and second step in cleanup of the_main_loop)
1135    
1136    checkpoint59b
1137    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1138      - export/import (between ocean & coupler) fields needed for ocean DIC.
1139    o pkg/seaice:
1140      - get rid of three more exchanges seaice_calc_viscosities (required
1141        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1142      - bug fix in seaice_ocean_stress (update of lab_sea required)
1143      - reduce loop boundaries to necessary minimum also in seaice_evp
1144      - go back to the old way of computing deltaC/Z as the adjoint likes that
1145        better
1146    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1147      passive tracer to an Age Tracer) + update output.txt
1148    o pkg/exf:
1149      - implement A-grid / C-grid selection for wind-stress input files.
1150      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1151      for now, in exf_bulk_largeyeager04.F only :
1152      - change implementation for case where windspeed + 2. components wind-stress
1153        are read-in. AND use rhoConstFresh to convert evap.
1154    o pkg/seaice:
1155      - use correct EXCH_UV for wind-forcing (on A-grid).
1156      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1157        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1158    o pkg/exf:
1159      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1160      EXF_INTERPOLATION:
1161      - merge global_with_exf/code version of exf_interp_read.F
1162        to the main code ;
1163      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1164        reading the file ; Important: This options needs to be defined to recover
1165        previous code.
1166        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1167      - no longer loose real*8 precision along the way when using exf_iprec=64.
1168    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1169      - change discretisation of evp-solver in order to avoid another exchange
1170        (changes lab_sea) and clean up a little
1171      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1172        help the adjoint (this also changes the results slightly)
1173      - add a few "_d 0" where they had been missing in seaice_evp.F
1174      - cleaning up: remove unused seaice_calc_rhs.F
1175    o pkg/exf: some cleaning-up:
1176      - change various "constants" into runtime parameters
1177      - cleaned-up Large&Yeager04 routine which should eventually
1178        replace exf_bulkformulae.F (changed names of S/R and CPP)
1179        and merged various ALLOW_ATM_WIND options
1180     only used with thsice pkg (in thsice_get_exf.F):
1181      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1182        which are used when useStabilityFct_overIce=TRUE (= the default)
1183      - change default values of ice & snow emissivity and scale downward LW
1184        by ice & snow emissivity.
1185    o pkg/thsice:
1186     fix few little problems, in thsice_calc_thickn.F:
1187      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1188      - melt only laterally if hIce < hThinIce (as the comments say)
1189      and in thsice_extend.F:
1190      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1191      - start to form ice as soon as the minimum ice-volume is reachable.
1192     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1193      and cpl_aim+ocn
1194    o pkg/kpp
1195     - move computation of surface related input fields to KPP into a new
1196       subroutine kpp_forcing_surf.F
1197     - remove wrong (within bi,bj loops) EXCH calls.
1198     - little cleaning (add argument myThid in last position, cvs header ...)
1199     - for now, fix conservation problem by exchanging KPPviscAz (may not
1200       be the best fix)
1201    o pkg/seaice
1202     - check for inconsistent evp parameter/cpp-flag combination
1203     - remove leftover errIO flat for obsolete name list error handling
1204    o OpenAD
1205     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1206    
1207    checkpoint59a
1208    o pkg/seaice: some parameter clarifications and a little bit of clean up
1209    o pkg/thsice: rename run-time parameters:
1210       himin       -> hIceMin
1211       himin0      -> hThinIce
1212       hihig       -> hThickIce
1213       i0          -> i0swFrac
1214       transCoef   -> bMeltCoef
1215       frac_energy -> fracMelting
1216      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1217       with default values (for now) that do not change the results.
1218      remove old version of thsice vars advection in pkg/seaice.
1219    o in FFIELDS.h:
1220      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1221      - make pLoad & sIceLoad always available (but still only used if
1222         ATMOSPHERIC_LOADING is #define).
1223    o pkg/kpp: replaced _KPP_RL with _RL
1224    o bug fixes for vertical diffusivity computations when both KPP and
1225        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1226        are no longer updating the vertical diffusivity array
1227        (passed as argument) but are (re-) setting those arrays.
1228    o pkg/seaice: fix bug in evp solver, while doing that
1229      - change (improve?) discretization of stress computations for both
1230        cgrid-lsr and evp solver
1231      - add a new routine to compute strain rates
1232      - the above changes lab_sea results
1233      - add no slip conditions for evp solver (off by default), lsr-version
1234        may follow
1235      - fix exchange for shear at Z-points (does not change lab_sea)
1236      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1237        (to force the user to pick a time step since there is not "safe" way
1238        of choosing it)
1239      - add principal stress diagnostics
1240      - rearrange fields for evp a little to avoid having to call a: too many
1241        exchanges and b: exchanges for stress trensor components which we do
1242        not have.
1243      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1244        of evp, complete rewrite for lsr case (latter is does not yet work
1245        in all cases)
1246    o pkg/kpp: add code to have mixing in shelf ice caverns
1247      - add myThid to all kpp routines (long overdue)
1248    
1249    checkpoint59
1250    o pkg/exf:
1251      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1252        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1253      - move exf header files from lower_case.h to UPPER_CASE.h ;
1254        add missing cvs Header & Name
1255      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1256      - add namelist param. selectStressGridPosition, exf_monFreq
1257      - retire many _CLIM routines, and remove data.exf_clim
1258        + params moved to data.exf
1259        + climsst, climsss now handled by exf_set_gen, i.e.
1260          climss?period=0 refers to constant field,
1261          climss?period=-12 to monthly forcing
1262      - split up namelists in data.exf
1263    o pkg/seaice:
1264      - remove seaice_exch and seaice_exch_uv
1265      - remove superfluous exchange of theta
1266      - add myThid to seaice_budget_ocean/ice
1267      - add new interface for atmospheric wind forcing (C-grid only)
1268        + new routine
1269        + two new field (taux, tauy for stress over ice)
1270        + removed one global field (DAIRN) for C-grid case only
1271    o pkg/thsise
1272      - 2nd set of modifs for thsice adjoint in conjunction with exf
1273    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1274    
1275    checkpoint58y_post
1276    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1277      vertical diffusivity, similar to that in MOM4; turned on using
1278      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1279      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1280    o Added capability for 3D specification of background vertical diffusion
1281      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1282      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1283      "data" file that contains the 3D vertical diffusivity coefficients.
1284    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1285      - add code within pkg thsice to advect & diffuse sea-ice fields
1286      similar to (and will replace) what has been added in  seaice_advdiff.F,
1287      but: - conserving Mass, Heat & Salt.
1288           - better when using non-linear advection scheme (not yet fully tested)
1289           - can also be used in atmospheric set-up (for now, only the diffusion).
1290    
1291    checkpoint58x_post
1292    o IO option for global-file compact format:
1293      - add options when generating topology (utils/exch2/matlab-topology-generator)
1294      - add I/O capability (pkg/mdsio).
1295      - adapt utils/matlab/rdmds.m to read this format.
1296      for now long-line format not yet supported by pkg/mdsio (& exch2).
1297    o shelfice: add a few diagnostics
1298    
1299    checkpoint58w_post
1300    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1301      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1302      (and replace horiVertRatio in NH code).
1303      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1304                         and tutorial_plume_on_slope (sensitive to truncation)
1305    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1306      directly to drive seaice model (C-grid only)
1307    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1308     - reintroduce computation of wind from stress,
1309     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1310       mass points to avoid tau = 0
1311     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1312    o rdmnc.m: make it work with "global" files created with gluemnc
1313    o rdmnc.m : some improvements in dealing with singleton dimension
1314      (tested on all testreport mnc output files).
1315    o genmake2: disable pkg/profiles if netcdf test fails.
1316    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1317    o move call to cal_readparms up to make calendar parameters/variable available
1318      to all packages
1319    
1320    checkpoint58v_post
1321    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1322      useDynP_inEos_Zc tested.
1323    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1324    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1325      and portions thereof.  See read_cs.txt for description and examples.
1326    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1327      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1328      following the great-circle arc between those 2 points.
1329    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1330      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1331    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1332     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1333     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1334     - still needs work (not working with some options ; efficiency to improve)
1335       and serious testing.
1336     - use this scheme for temperature & salinity in 2 advection test exp.:
1337       advect_xy & advect_xz, respectively.
1338    
1339    checkpoint58u_post
1340    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1341    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1342    o testreport: add option "-skipdir" to skip some test.
1343    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1344      momentum calculation.
1345    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1346    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1347      remove checkpoint.F and the_correction_step.F (no longer used);
1348      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1349    o add option (linFSConserveTr) to correct for tracer source/sink due to
1350      Linear Free surface
1351    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1352    o pkg/thsice: fix reading mnc-pickups
1353    
1354    checkpoint58t_post
1355    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1356    o pkg/mdsio:
1357     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1358       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1359       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1360     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1361     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1362       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1363     - new S/R (to replace MDSWRITEMETA), which allows to write more
1364       informations (variable names, time ...) to meta files.
1365     - modify rdmds.m to give back the meta file content.
1366    o pkg/diagnostics: change vertical interpolation to be safer, and more
1367       flexible (define p-levels to interpolate to in data.diagnostics);
1368      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1369       diagnostic pointer.
1370    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1371    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1372    o fix multi-category seaice:
1373     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1374       SEAICE_MULTICATEGORY
1375     - fix short wave heat flux
1376    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1377       and allow to use EVP solver. Change forward lab_sea: test both EVP
1378       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1379    o Initial check-in of lab_sea adjoint
1380      (very similar to natl_box_adjoint/code_seaice)
1381      * used C-grid and EVP solver
1382      * used KPP, GM/Redi
1383      * uses inAdExact=.TRUE.
1384      * gradient checks fail for both ADM and TLM
1385        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1386        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1387        issue is related to forward mismatch between g77 an ifort
1388    o pkg/seaice: overhaul of thermodynamics
1389     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1390     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1391     - move a few global fields out of SEAICE.h into seaice_growth.F and
1392       make them 2D (FICE/QNETO/ ...)
1393     - remove FO (it is the same as QNETO)
1394     - introduce a few local fields to avoid modifying external fields such
1395       as atemp, etc.
1396    
1397    checkpoint58s_post
1398    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1399      changed exf_set_gen.F so that
1400        genperiod=0 means input file is one time-constant field and
1401        genperiod=-12 means input file contains 12 monthly means
1402    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1403      this affects truncation error ; generate new output file for exp. which
1404      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1405        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1406        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1407        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1408        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1409        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1410    o start implementation of deep-atmosphere and anelastic formulation
1411    o verification: remove 2nd copy of input files and use script "prepare_run"
1412      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1413    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1414    o profiles: fix for multithreaded case
1415    
1416    o diagnostics: rename few diags:
1417      s/'PRESSURE'/'RCENTER '/g
1418      s/'TICE    '/'oceFreez'/g
1419      s/'TAUX    '/'oceTAUX '/g
1420      s/'TAUY    '/'oceTAUY '/g
1421      s/'SWFLUX  '/'oceQsw  '/g
1422      s/DIFx/DFxE/g
1423      s/DIFy/DFyE/g
1424      and add few ocean-forcing diagnostics:
1425      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1426    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1427      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1428      as actual snow thickness.  It now refers everywhere to effective snow
1429      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1430    
1431    checkpoint58r_post
1432    o modifications to pkg/seaice/growth.F, which change results of
1433      lab_sea experiment: fixes pertain to melting snow over open water, to
1434      masking EVAP under sea ice, and to using the correct AREA variable for
1435      computations of EVAP, PRECIP, HSNOW, and GHEFF
1436    o add ability to read bathy, salt, and theta using MNC (off by def)
1437    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1438      both are turned off by default and do no change any results
1439    o seaice advection with pkg/thsice: a step toward the use of non-linear
1440      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1441    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1442      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1443      in natl_box (affects results @ truncation level: update output.txt)
1444    o multi-threading and IO:
1445      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1446      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1447        (needed to work with SingleCpuIO): tested in all verif. exp.
1448    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1449      affects the results (but none of the verification test uses this scheme).
1450    o Adding some pkg/diagnostics capability to pkg/seaice
1451      (will certainly be subject to changes)
1452    o ctrl: adding new control variables:
1453      lwflux, lwdown, evap, snowprecip, apressure, runoff
1454    
1455    checkpoint58q_post
1456    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1457      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1458      high_res_cube configuration by 4% on Columbia.
1459    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1460      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1461      dynamical allocation (seems to work in multi-threaded).
1462    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1463      single CPU io) so that TAF does not have to see EESUPPORT.h
1464    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1465    
1466    checkpoint58p_post
1467    o obcs: stop if obcs is used with useCDscheme = .true.
1468    o shelfice:
1469     - fix a sign error so that no slip at shelfice interface works
1470     - remove stop for combination non-hydrostatic code and shelfice. That does
1471       not mean, that the results are correct, but at least they are numerically
1472       stable
1473    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1474    o added adjoint exch routined for all exch*3d* routines
1475      and updated flow directives
1476    
1477    checkpoint58o_post
1478    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1479      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1480    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1481      and clean-up reading/writing of pickup files.
1482    o fix local version of read/write pickup (NH part) in rotating_tank/code
1483    o simplify EXCH interface:
1484     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1485     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1486    o added the regrid package
1487    o shelfice:
1488     - add a simple boundary layer scheme to reduce noise
1489     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1490    
1491    checkpoint58n_post
1492    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1493       local variable (not in common block).
1494    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1495      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1496      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1497        to work with SingleCpuIO.
1498    o add "_d 0" to real constant of pkg/cfc subroutines ;
1499       update exp. cfc_exemple & tutorial_cfc_offline output files.
1500    o multi-threading and IO:
1501      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1502        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1503      - barrier before and after reading.
1504      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1505      - avoid using MDS_WRITELOCAL for LAND pkg output.
1506      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1507        common-block variables ; Allows multi-threading with master-thread IO.
1508    o change default MAX_NO_THREADS from 32 to 4 ;
1509      and stop cleanly when MAX_NO_THREADS is too small.
1510    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1511    
1512    checkpoint58m_post
1513    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1514       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1515    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1516       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1517       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1518    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1519        add MITgcm_tutorials (= code + all the tutorials)
1520    o ecco, option to compute cost for total ssh (mean+anom)
1521    o consistent with addition of ptracer and ssh in pkg/profiles
1522    o profiles: adding ptracer and ssh
1523    o testreport: change multi-test output-file name
1524      (from output.txt.{name} to output.{name}.txt)
1525    o profiles: now ok for mutli-tiles case
1526    o seaice: add 4 parameters for different advection schemes for area,
1527      (effective) seaice thickness, enthalphy, and snow height. Their default
1528      is the standard parameter SEAICEadvScheme
1529    o calc_gw:
1530     - add cosFacU in zonal viscous flux (harmonic.visc.).
1531     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1532       of tutorial_plume_on_slope.
1533    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1534    o calc_gw: true flux-form, account for horizontal grid spacing.
1535      update rotating_tank results, but not plume_on_slope (affected at
1536      truncation level, 11 digits).
1537    
1538    checkpoint58l_post
1539    o calc_gw:
1540     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1541     - remove side-drag for now (need to fix it); update plume_on_slope results.
1542     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1543    o commit code to make SST/SSS weights spatially variable
1544      (based on either variable in-situ or variable initial T/S weights)
1545    o pkg/ecco:
1546      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1547        now based on horizontally varying weights wthetaLev, wsaltLev
1548      * cost_averagesflags now returns year indices in addition to day, month
1549      * sflux balance is performed on annual basis
1550        (sflxumm, sfluxmm2, bal_sfluxmm)
1551      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1552        including separate counting and multipliers
1553    o pkg/rbcs
1554      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1555    
1556    checkpoint58k_post
1557    o testreport:
1558     - always build in dir. "build" (if not there, mkdir build instead of building
1559       & running in input)
1560     - run in dir run (if it exists), in build otherwise.
1561     - call prepare_run (if input/prepare_run exists)
1562     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1563    o pkg/exf modifications to interpolation and rotation routines for more
1564       reasonable treatment of North Pole singularity: for tracers North Pole
1565       value is set to northernmost zonal-mean value, for zonal velocity it is
1566       set to zero, and for meridional velocity it is set to northernmost value.
1567    o pkg/exf/exf_check_range.F
1568     - add tile index to diagnostics and move stop statement to the very
1569       end of the routine.
1570    o pkg/diagnostics: (diagnostics_main_init.F)
1571      define title of isomorphic variables according to the current config.
1572    o pkg/thsice with pkg/seaice dynamics:
1573    - fix domain of computation (interior only, required for exf) and do exchanges
1574    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1575    o towards a standard way of dealing with multi-threading in MONITOR
1576      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1577    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1578       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1579    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1580    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1581    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1582       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1583    o tracer advection:
1584     - clean-up and simplify calc_common_factors.F
1585     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1586       advection subroutine (but still not used within DST advection S/R)
1587    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1588    
1589    checkpoint58j_post
1590    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1591      from file (collects calls previously in FORWARD_STEP)
1592    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1593    o adjoint store dir. adjusted accordingly
1594    o genmake2
1595      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1596    
1597    checkpoint58i_post
1598    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1599      on wind stress (SEAICEstressFactor defaults to 1.)
1600    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1601      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1602    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1603      on CS-grid: no longer loosing mass.
1604    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1605    o pkg/ggl90: fix sloppy output and fix a bug
1606    o pkg/seaice: added SEAICEuseEVPpickup parameter
1607      - Set to false in order to start EVP solver with
1608        non-EVP pickup files when using SEAICEuseEVP
1609      - fix sign error in diffusion in seaice_calc_rhs
1610    
1611    checkpoint58h_post
1612    * Modifications for bottom topography control
1613      o replace hFacC by _hFacC at various places
1614      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1615      o add non-self-adjoint cg2d_nsa
1616      o update autodiff support routines
1617      o re-initialise hfac after ctrl_depth_ini
1618      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1619    * Adding verification for 5x5 box (4-layer) bottom topography control
1620    
1621    checkpoint58g_post
1622    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1623       used for mean seasonal cycle, mean diurnal cycle); add an example
1624       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1625    o pkg/ggl90:
1626      - add parameter (minimum surface kinetic energy)
1627      - fix bug (avoiding division by zero)
1628    o couple pkg/thsice to pkg/seaice:
1629      - modify advection in seaice to accomodate new scalar fields to be advected
1630      - only muliDimAdection scheme work with seaice/thsice
1631      - mapping of thsice-variables to seaice-variables, back and forth
1632      - does not break the verification experiments, but does not give the
1633        desired results either
1634    o pkg/seaice
1635      - make (default) second order advection a bit less confusing?
1636    
1637    checkpoint58f_post
1638    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1639      to pkg/seaice):
1640      - new routines thsice_map_exf and thsice_get_exf provide the interface
1641      - add an additional formal parameter to thsice_solve4temp
1642    o pkg/exf:
1643      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1644      - correct Stefan-Boltzmann constant
1645      - new parameter for longwave surface emittance
1646      - separate some stuff from exf_bulkformulae into new routines  
1647        exf_radiation, exf_wind
1648      - add new parameters and constants: longwave emissivity for ocean, ice
1649        and snow, evaporation parameters over ice
1650      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1651        either wind from stress or stress from wind
1652    o pkg/thSIce:
1653    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1654    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1655       and THSICE_CALC_THICKN
1656    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1657    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1658      to make debugging easier.
1659    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1660    o pkg/bulk_force:
1661      - clean-up comments and parameters ;
1662      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1663    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1664      generate new output for test-experiment: aim.5l_cs.thSI
1665    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1666      testreport accordingly
1667    
1668    checkpoint58e_post
1669    o SEAICE_CGRID adjoint done
1670    o R_STAR adjoint implemented.
1671      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1672      * need to sort out init. of h0facc, etc.
1673    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1674      to be able to use it in pure forward.
1675    
1676    checkpoint58d_post
1677    o upgrade simple test-experiment to tutorial example:
1678     step.1: duplicate the experiment and (step.2) will remove the old copy.
1679      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1680      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1681      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1682      tutorial_global_oce_biogeo    <- copy of dic_example
1683      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1684      tutorial_plume_on_slope       <- copy of plume_on_slope
1685      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1686      tutorial_global_oce_optim     <- empty for now (David ?)
1687      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1688     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1689    o correct a sign problem in cost_scat.F
1690    o obcs and ptracers: fix boundary conditions for advections schemes
1691      with larger stencil
1692    o thsice adjoint: start
1693    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1694      completeness
1695    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1696      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1697    o ptracers adjoint:
1698      * avoid extensive recomputatations
1699      * fix missing re-init. of gptr (missed by TAF)
1700    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1701      me to turn off the excessive output to STDOUT that this package produces
1702    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1703      and add those terms in Vector-Invariant formulation.
1704    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1705      if the control period (xx_hfluxperiod etc) is 0
1706    o in profiles pkg, clean routines and fix details
1707    o in ecco pkg, reading ssh data:
1708      fix problem in case the model does not start at iter0=0
1709    o fix mnc-pickup/restart for ptracers
1710    o new package prifiles:
1711      code to compute profile-based cost by Gael Forget
1712      (modifs in ecco, ctrl, autodiff)
1713    o Benign bug fix in initialization (spotted by M. Mazloff) of
1714      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1715    
1716    checkpoint58c_post
1717    o adjoint: finish NLFS adjoint and provide reference output in
1718      verification/global_ocean.90x40x15/results_ad_nlfs
1719    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1720      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1721      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1722      with SEAICE_CGRID defined.
1723    o move calendarDumps from "data" to "data.cal" and clean-up the code
1724      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1725    o add useEXF & useCAL flags (for now, set in hard-coded way)
1726    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1727      (were missing in NH mode, and wrong in quasihydrostatic mode).
1728      waiting for Chris updated version of calc_gw to add those CALLs.
1729    o fix bug in quasihydrostatic S/R ;
1730      add a test for this option: global_ocean.90x40x15.qshyd
1731    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1732      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1733    o add on/off flag useOffLine for package OFFLINE
1734    o seaice:
1735      - modify advection so that it works also on the C-grid
1736      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1737        problem in multi-tile runs with C-grid
1738      - add flags for clipping ice velocities and/or masking solver forcing
1739      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1740        C-grid solver
1741      - added a few comments to seaice_diffusion.F
1742      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1743        are now exclusive)
1744      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1745        required re-ordering the code a little:
1746       + make DAIRN global variable (defined in SEAICE)
1747       + move computation of the viscosities eta and zeta into a new separate
1748         routine (because I need to recompute them in seaice_ocean_stress.F)
1749    
1750    checkpoint58b_post
1751    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1752      update output.txt of exp. aim.5l_cs.thSI
1753    o various mnc cleanups and improvements:
1754      + shrink lookup tables by factor of ~4
1755      + better error reporting when running out of lookup space
1756      + able to handle longer path/file names (up to 500 chars)
1757    o adjoint:
1758      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1759      - TBD: "hidden" mom_vecinv recomp. in dynamics
1760    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1761     (allow to differentiate between forcing components using new integer flags:
1762      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1763     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1764    o ecco
1765      - enable trend removal from SSH anomaly obs.
1766    o adjoint
1767      - a fix for PmEpR when #undef EXACT_CONSERV
1768      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1769      - try to fix "hidden" recomp. in forward_step for NLFS
1770        (NLFS seems broken sometimes after I checked it in)
1771    o seaice:
1772     - add c-grid version of the dynamic solver:
1773       + three new routines that are the c-grid substitute lsr, dynsolver
1774         and ostres
1775       + put a few fields that were local to dynsolver into global common
1776         blocks, so that I can move the computation of stresses etc into
1777         seaice_lsr (saves coding but may break the adjoint).
1778     - replace more hardwired parameters by runtime parameters
1779     - add ice masks that mask the rhs of the implicit solvers where there
1780       is no ice (commented out in seaice_dynsolver, because i am not sure
1781       if this works properly), eventually this should replace the clipping
1782       of ice velocities in seaice_dynsolver to +/-40cm/s.
1783    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1784      include it only where its needed
1785    o move balancing of fluxes before the call of external_forcing_surf
1786    o seaice:
1787      - correct units of turning angles (now they are really in degrees)
1788      - move computation of GWATX/Y out of main routine into dynsolver
1789      - initialize GWATX/Y in seaice_init
1790    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1791      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1792    o seaice: add runtime flags for turning angles (default to zero)
1793    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1794      and trend from exf forcing and ctrl control adjustments
1795    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1796      (since checkpoint57x_post)
1797    o change the default rotation period to 86164.s = the Earth rotation
1798    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1799      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1800    o seaice advection: add code for choosing between the default (2nd order
1801      central differences) and multiDim advection schemes provided by
1802      pkg/generic_advdiff
1803    o seaice:
1804      - removed all references to SEAICE_GRID.h fields from
1805        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1806        (cubed-sphere configuration will change a little)
1807      - grid computations in seaice_init are obsolete now.
1808      - cleaned up code a little so that is easier to read (hopefully).
1809      - added new (better?) discretizations of default advection and diffusion
1810        (turn on with SEAICEuseFluxForm)
1811      - replace 1 in 3d global fields by kSurface in growth.F
1812      
1813    checkpoint58a_post
1814    o seaice:
1815      - bug fix in advect.F
1816    o shelfice:
1817      - separate shelfice load anomaly from pload (breaks with time
1818        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1819        Its default is 0., but it may be computed more cleverly from (unknown)
1820        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1821        done offline. A good approximation of the pressure load anomaly is
1822        necessary to avoid large initial adjustment processes underneath
1823        deep-reaching shelfice.
1824      - small fix in ISOMIP shelfice_thermodynamics
1825      - add more sophisticated thermodynamics of Hellmer (1989), this is
1826        now the default
1827      - give a few constants more intuitive names
1828    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1829      if bulk formulae are used in long integration (especially EmPmR). Turn
1830      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1831      if balancePrintMean, the imbalance that is substracted is printed to
1832      STDOUT.
1833    o fix bug (typo) in obcs_apply_eta.F
1834    o add a new package shelfice which enables us to model the circulation
1835      underneath shelf-ice with draughts of hundreds of meters.
1836     - works
1837     - to do: + include improved thermodynamics
1838              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1839                instead of new field kTopC
1840              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1841                instead of new field R_shelfIce and new code in ini_depth.F
1842                and ini_mask_etc.F?
1843              + adjust vertical mixing schemes?
1844    o seaice pkg:
1845     - add a cpp-flag to include a simple formula for a salinity dependent
1846       freezing point of sea water at the surface
1847     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1848       meridional stresses are now different (and hopefully correct)
1849    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1850       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1851       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1852    o pkg/diagnostics: add options and parameters for regional-statistics
1853       diagnostics ; define regions by reading a region-mask from a file
1854       (might add other options later)
1855    o pkg/bulk_force:
1856     - add option and parameters to use AIM surface-flux formulae.
1857     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1858       others forcing fields (defined in PARM05, parameter file "data") are loaded
1859       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1860     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1861     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1862     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1863       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1864     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1865    
1866    checkpoint58
1867    o add "--embed-source" option to genmake2 which, when the supporting
1868      tools can be compiled (as determined by genmake2) will turn on the
1869      embed_files package which then embeds the entire MITgcm source code
1870      (*.[fFhc] + Makefile) used for the build within the executable
1871      - requested by CNH but off by default
1872      - adds a paltry <9MB to the mitgcmuv executable in most cases
1873      - only writes the output when useEMBEDSRC in eedata is true
1874    o clean up 3-dim. relaxation codes:
1875      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1876      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1877      * Thanks to Tom Haine for testing!
1878    
1879    checkpoint57z_post
1880    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1881      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1882    o fix the pickup behavior for obcs in combination with ptracers
1883    o fix a bug in ptracers_external_fields_load
1884    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1885      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1886    o transfered surface NH pressure to eta field (if exactConserv).
1887    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1888         and update lab_sea output.txt file.
1889    o completing 3-dim. relaxation code: additional term
1890         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1891      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1892      * At compile time, in "EXF_OPTIONS.h" set
1893          #define  ALLOW_CLIMTEMP_RELAXATION
1894          #define  ALLOW_CLIMSALT_RELAXATION
1895      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1896          tauThetaClimRelax3Dim = 15552000.0,
1897          tauSaltClimRelax3Dim  = 15552000.0,
1898      * 3 cases:
1899          1) Use a constant-in-time 3-dim. field
1900          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1901          3) Real-time relax. to time-evolving prescribed field
1902    o Adding Laplacian-type smoothness constraint on
1903      initial and boundary (forcing) controls (ic, bc)
1904      * enable at compile-time via
1905        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1906      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1907      * Absolute scale somewhat unclear so far
1908      * no area weighting was included since no other cost term does so far
1909    
1910    checkpoint57y_post
1911    First step for a NLFS adjoint
1912    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1913    o new init. routines for calc_r_star, calc_surf_dr
1914    o still need to deal with ini_masks_etc
1915    o testreport seemed happy
1916    checkpoint57y_pre
1917    
1918    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1919    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1920    o add new offset feature to offline pkg (plus minor cleanup)
1921    o cfc fixes for final year of integration
1922    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1923      be in GCHEM_OPTIONS).
1924    
1925    checkpoint57x_post
1926    o fix testreport Pb in multiple test experiment.
1927    o cleanup our namelist syntax in verification:
1928      - make it more F95 standards compliant (some work still needed)
1929      - allows the vast majority of our tests to work with gfortran
1930    o Non-Hydrostatic:
1931     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1932     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1933    o Allow to apply AB on T,S rather than on AB(gT,gS):
1934     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1935     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1936       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1937     - need a "clever" read_pickup to restart from the other AB formulation
1938    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1939    o remove some unused variables (reduces number of compiler warnings)
1940    o adjoint
1941      * Disable useVariableViscosity for adjoint for time being
1942        (there are a number of extensive recomputations)
1943      * Initialize certain variables needed for adjoint
1944    
1945    checkpoint57w_post
1946    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1947                 fix the singleCpuIO RS version of MDSWRITEFIELD
1948       and add a WARNING if using globalFiles=T with multi-processors.
1949    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1950      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1951    o tracer advection scheme:
1952      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1953       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1954       was not very convenient).
1955      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1956       (further tests needed for the implicit DST & Flux-Limiter schemes).
1957    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1958      and sRef for convenience, handy, when you want to initialize
1959      ptracers in a large domain with a constant non-zero value. Also,
1960      untangle ptracers_init.F a little.
1961    
1962    checkpoint57v_post
1963    o change dome exp. to use variable viscosity in side-drag terms.
1964    o remove all the files from the cfc_offline test since they are now
1965      incorporated into tutorial_cfc_offline which has been producing
1966      identical results for a few days of testing
1967    o add new parameter: sideDragFactor to enable half-slip-side BC
1968      and change side-drag S/R to use viscosity from mom_calc_visc
1969      (can switch back by setting sideDragFactor=0.); affects results at
1970      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1971       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1972    o vorticity & strain are now computed without masking, to account for
1973      no-slip-side BC in variable viscosity calculation ; mask is applied
1974      anyway later on, before computing advection/coriolis terms.
1975    o modify exp4 to test new obcs support for reading from external files
1976      and for passive tracers
1977    o fix behavior of ptracers_monitor when monitor output is written to a
1978      netcdf-file; still not independent of monitor.F (writes in the same
1979      file).
1980    o change default value of tRef (put a uniform, meaningful value for ocean
1981      & atmos) and initialize sRef (was missing, as Martin mentioned).
1982    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1983      to be proportional to enstrophy dissipation length.  Thus,
1984       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1985      This is now consistent with Smagorinsky and with the manual.
1986    
1987    checkpoint57u_post
1988    o OBCS and PTRACERS: add open boundary support for passive tracers
1989      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1990        OB-values from file; this is not different from the way theta and salinity
1991        are treated
1992      - however, Orlanski-radiation conditions are not supported, and the model
1993        will stop if you use pTracers and Orlanski at the same time.
1994      - beefed up the rountine obcs_external_fields_load: now only those open
1995        boundary values are overwritten with values from files for which there
1996        are really files, otherwise the OB-fields remain untouched. This makes
1997        it possible to use different OBs at different ends of the domain (as
1998        with EXF)
1999    o reduce number of exch calls in shap_filt (s2).
2000    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2001      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2002    
2003    checkpoint57t_post
2004    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2005    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2006      same truncation, independent of the face number: affects affects several
2007      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2008    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2009      note that biharmonic viscosity + no-slip was not tested in any experiment.
2010    o fix bug in non-linear free-surf side-drag ; generate new output for
2011      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2012    o make mnc honor the writeBinaryPrec flag for most kinds of output
2013    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2014    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2015      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2016    o add brackets in multi-terms sum to get same truncation, independent of
2017      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2018      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2019    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2020      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2021      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2022      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2023      Suggested values of viscosity parameters found in mom_calc_visc.
2024      Many new viscosity diagnostics available.
2025    
2026    checkpoint57s_post
2027    o Add clearing-house for viscosity calculations, mom_calc_visc and
2028      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2029      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2030      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2031      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2032      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2033      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2034      ViscAhStrain and viscAhTension are now retired.
2035    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2036    o In response to JMC's bug report, genmake2 now ignores any soft-links
2037      that it finds in the *current* directory when searching for files.
2038      Soft-links found in any other source directories will still work as
2039      they did before.
2040    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2041      a C routine to unlimit the stack size
2042    o mnc-ify pkg/aim snapshot vars
2043    o mnc-ify pkg/land as requested by Daniel
2044    o various changes to mnc including:
2045      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2046      - output can now be grouped so that all files within a group
2047          change the ITER portion of their names in lock-step together
2048      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2049          and works with both EXCH1 and EXCH2 (but needs more testing)
2050      - writing works for all verification test cases w/ g77 on Linux
2051    
2052    checkpoint57r_post
2053    o make MNC variable initialization happen earlier
2054    o add diagnostics for (almost) each term of the momentum Eq.
2055    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2056    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2057    o remove MINIMAL_TAVE_OUTPUT option ;
2058      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2059    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2060      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2061    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2062    o add time-dependent SST, SSS control
2063    o cost terms in ecco/ modularized (new cost_generic.F)
2064    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2065    o new infrastructure for seaice model vs. obs misfits in seaice/
2066      * driver from the_main_loop.F is seaice_cost_driver.F
2067      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2068      * gradient check in Exp. 6a of natl_box_adjoint/
2069    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2070      (see README file)
2071    
2072    checkpoint57q_post
2073    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2074    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2075      - bug was reported by Jean-Michel and Ian Fenty
2076    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2077      update exp. cpl_aim+ocn output.
2078    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2079      Needed for high-res. runs with large global files
2080      to be able to limit tapelev size
2081    o Changed some tests for adjoint:
2082      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2083      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2084      * global_ocean.90x40x15/ back to default 3-level checkpointing
2085    o Modifications to enable scripted COMMON to MODULE conversion
2086      * verification/OpenAD/code/ has necessary scripts and description;
2087      * converts, compiles and runs successfully;
2088    
2089    checkpoint57p_post
2090    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2091    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2092      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2093    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2094    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2095      (was already the case for dissipation with mom_vecinv,
2096       and also the case for grad.PhiHyd when staggered-timeStep)
2097      This will allow to put dissipation out-off the AB time-stepping.
2098     Unfortunately, affects truncation error. Update output of exp. that "fails"
2099      (cg2d matching number) and leave the others for later: front_relax(10),
2100      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2101      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2102    
2103    checkpoint57o_post
2104    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2105      (2) its ready to be documented during the 20050801 DocFest
2106    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2107      for ideal_2D_oce and lab_sea on linux_ia32_g77
2108    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2109      in global1x1_tot/code_seaice_adj to access indices 32, 33
2110      (worth another tag)
2111    
2112    checkpoint57n_post
2113    o adding precip control xx_precip 32
2114    o adding swflux control xx_swflux 33
2115    o Replacing 10 forcing penalty cost routines by 1 generic.
2116    o Implementing partitioning in time-mean and variable adjustment
2117      for atmos. state.
2118    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2119    o in natl_box_adjoint:
2120      * updated exp 1 to 10
2121        (but does not have time-mean vs. variable split results yet)
2122    o updated global1x1/*_seaice_adj/
2123      to incorporate latest changes
2124    o enable useSingleCpuIO for mdsio vector routines
2125      (applies in particular to tapelev I/O)
2126    o removed inefficient K-loop in all active_file*control*.F
2127    
2128    checkpoint57m_post
2129    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2130      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2131    o pkg/exch2: filling of face-corner halo regions is optional
2132      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2133    
2134    checkpoint57l_post
2135     tag before updating tutorials (pre-release-2)
2136    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2137       for output and interpolation of input fields onto model grid)
2138    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2139       Affects results of exp. rotating_tank ; update output.txt.
2140    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2141          and taking the square quantity and/or using a fraction-weight field.
2142    o fix aim_diagnostics_init.F mate numbers.
2143    o add mnc output capability to diagnostics/diagstat and update
2144      our cvsignore files for the ACSII output generated
2145    
2146    checkpoint57k_post
2147    o lab_sea now uses diagnostics package and provides a suite of
2148      new EXF diagnostics output.
2149    
2150    checkpoint57j_post
2151    o exf
2152      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2153        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2154        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2155      * extended diagnostics output
2156        - now includes all EXF variables
2157        - hs, hl moved to common block
2158        - separate S/R for diagnostics, called after ctrl vector is added
2159        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2160        - EXFqnet contains true Qnet (i.e. includes qsw)
2161      * updated verif. lab_sea, global_with_exf
2162      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2163        to ensure that diagnostics sees a true EXFqnet
2164    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2165    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2166      several times with different frequencies.
2167    o mnc-ify the thsice package as requested by Daniel Enderton
2168      - the monitor--MNC output needs work
2169      - many attributes need to be added (most are currently blank)
2170    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2171      - many attributes need to be added (most are currently blank)
2172    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2173    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2174    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2175      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2176         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2177    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2178     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2179    
2180    checkpoint57i_post
2181    o Diagnostics package was changed: diagnostic allocation is now deactivated
2182      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2183    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2184      add 1rst Order upwind vertical Shear.
2185    o add a quick fix for A/B checkpointing in OFFLINE mode
2186    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2187      end-run around the C/Fortran linking horror in eesup/src/timers.F
2188    o added pkg/runclock: allows user to terminate run based on wall clock
2189    o added non-hydrostatic scaling parameter: nh_am2
2190    o pkg/my82: futile attempt to make results compiler-independent by adding
2191      some "_d 0", etc. no effect.
2192    o for mnc output, fill the 'T' coordinate var with myTime and create a
2193      separate 'iter' variable for iteration count
2194    o pkg/diagnostics:
2195      add new capability: output of Global/Regional & per-level statistics ;
2196      tested against monitor output (including land & thSIce) on various exp.
2197    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2198    
2199    checkpoint57h_done
2200      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2201      data.diagnostics, data.gchem, data.ptracers) is done.
2202    
2203    o pkg/diagnostics: prepare for Global/Regional statistics.
2204      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2205    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2206      and rename it: DIFFERENT_MULTIPLE
2207    
2208    checkpoint57h_post
2209    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2210    o pkg/diagnostics: change output frequency, now in seconds (instead
2211      of Nb of iterations). This requires to change data.diagnostics.
2212    checkpoint57h_pre
2213    
2214    o in mnc, let the user create the output dir if both mnc_outdir_date
2215      and mnc_outdir_num are false
2216    o add fflags() to pkg/diagnostics which allows one to specify, on a
2217      per-file basis, the file precision [default behavior is unchanged]
2218    o added diagnostics to pkg/kpp, including computation of mixed layer
2219      depth based on a temperature/density criterion
2220    o updated verification/natl_box to test the new pkg/kpp diagnostics
2221    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2222    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2223    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2224      not mnc -- this mistake was found by JMC and is now corrected
2225    
2226    checkpoint57g_post
2227    o add Adams-Bashforth 3rd Order time stepping:
2228      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2229      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2230    checkpoint57g_pre
2231    
2232    o make lambda[Theta,Salt]ClimRelax spatially varying
2233      (default remains spatially uniform constant based on tau)
2234    o added new control variables
2235      * init. uVel, vVel, etanN
2236      * lambda[Theta,Salt]ClimRelax
2237    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2238      (suggested by G. Forget)
2239    
2240    checkpoint57f_post
2241    o add parameter "baseTime" = model base time = time at iteration zero
2242      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2243      account for baseTime shift
2244    o move Coriolis arrays from PARAMS.h to GRID.h
2245    checkpoint57f_pre
2246    
2247    o mnc-ifying the seaice package
2248    o introduced an alternative length scale calculation for use in the limiting
2249      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2250    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2251    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2252      as well as grad(vort3).  Made it compatible with both approximate form
2253      for the cubed sphere and full form of these gradients.  Added flag
2254      useFullLeith to select between approximate and full form.  
2255    o add "d0" in getcon.F to reduce differences between compilers/platforms
2256      update output.txt of exp. fizhi-gridalt-hs
2257    o change port_rand funtion to allow to set the seed.
2258    o fix obscure MNC bug involving conversion between reals and integers
2259      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2260        new version is now more standards-compliant
2261    o adjoint-related modifications
2262      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2263      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2264      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2265    
2266    checkpoint57e_post
2267    o Adding eddy stress controls a la Ferreira et al.
2268    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2269    
2270    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2271      update output.txt of exp. fizhi-gridalt-hs
2272    o add more "Z" dimensions and associated coordinate vars to MNC
2273    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2274    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2275      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2276      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2277      months and years.  Requires pkg/cal.
2278    o diagnostics: add pickup functionality
2279      - off by default for backwards compatibility
2280      - current version only uses MDSIO -- MNC will be added
2281    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2282    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2283    
2284    checkpoint57d_post
2285    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2286    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2287      output from the diagnostics package
2288    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2289    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2290      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2291    o add coordinate variables to the MNC output from the diagnostics package
2292    o change MNC-flags default value: true when useMNC=TRUE
2293    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2294      the ability (off by default) to read the grid information using MNC
2295    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2296    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2297    o do snap-shot diagnostics at the middle of the time-interval (instead of
2298      at the end).
2299    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2300      new test for AIM with thSIce + slab-ocean
2301    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2302    o move state variable diagnostics to the beginning of the time step ;
2303      (note: still needs some work specially for snap-shot diagnostics)
2304      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2305    
2306    checkpoint57c_post
2307    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2308    o generate new output.txt files on faulks with g77 & the new -ieee option
2309    checkpoint57c_pre
2310    
2311    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2312      update output.txt of exp. global_ocean.90x40x15
2313    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2314      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2315    o add saltFlux(+File) forcing capability with periodicExternalForcing
2316    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2317    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2318    o improvements for the MNC output from DIAGNOSTICS:
2319      - correct handling of the unlimitied dimension
2320      - all dims now have associated coordinate variables
2321      - variables located at U, V, and Corner ("Z") points are now written
2322        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2323        *all* data points are output
2324    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2325    o added pkg/seaice/seaice_monitor.F
2326    o mdsio_readfield.F can now read files visible only to master MPI process.
2327    o pkg/seaice: some test code for ice-modified ocean stress
2328    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2329      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2330      spurious negative numbers for precipitation and humidity.  Will cause
2331      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2332    o pkg/ctrl/
2333      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2334        May be enabled via doPackDiag
2335      *  introduce z-scaling of
2336         + gradient (doZscalePack) and
2337         + control (doZscaleUnpack)
2338    o pkg/mdsio/
2339      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2340      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2341    
2342    checkpoint57b_post
2343    o simplify options in diagnostics_fill arguments (remove weird combinations)
2344    o fix MNC coordinate variables so that they now contain per-face index
2345      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2346      general, EXCH2 grids are only aligned to a "local" coordinate system
2347    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2348    o Implement instantaneous output within pkg diagnostics:
2349      setting a negative frequency in data.diagnostics produces
2350     "snap-shot" output (as opposed to time-average if freq > 0)
2351    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2352      NOTE: change ptracer diagnostics name: use 2 characters to work with
2353            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2354    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2355      becomes the coordinate variable for the 'T' dimension
2356    o add CF-style coordinate variables to MNC
2357      - just a first cut:  numbers are meaningless on the cubesphere and
2358        missing along the T axis but otherwise it works!
2359    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2360    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2361    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2362      this is based directly on what the model compute, so that the content of
2363      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2364    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2365    o clean up build options files for SunOS, in particular
2366      - remove -traditional from xmakedepend
2367      - change -xarch=v9 to -xarch=native for f77
2368      - restore use of make (not gmake)
2369      - add CC=gcc if using g77
2370    o changes per discussion of AM, JMC, & EH3 today:
2371      - move redundant "grid" variables out of "state" -- in preparation of
2372        creating proper CF-style coordinate variables and in recognition
2373        that any/all grid variables can be easily copied (eg. w/NCO) from
2374        the grid files into any of the other NetCDF files
2375      - *always* output grid variables with MDSIO (this will eventually be
2376        changed)
2377      - output MNC grid file if useMNC is true
2378    o every instance of _END_MASTER() has been found and replaced with
2379      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2380      preprocessors
2381    o re-arrange diagnostics pkg initialisation:
2382     - allow each package to extend the available diagnostics list
2383     - add some checking and fix small problems (multi-threaded, ...)
2384     - new S/R diagnostics_fill (replace fill_diagnostics):
2385       look through the short list of active diag. (instead of the long list)
2386       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2387    
2388    checkpoint57a_post
2389    o this set of changes restores TAMC compatibility
2390      tested for global_ocean.90x40x15 adjoint on trough
2391      (what a pain)
2392    
2393    checkpoint57a_pre
2394    o some modifs in tools/build_options for sunos
2395    o call ctrl_pack for ctrl at end for optimcycle=0
2396    
2397    checkpoint57
2398    o add horizontal bi-harmonic viscosity for vertical velocity
2399      - new parameter viscA4W (defaults to viscA4)
2400      - affects only non-hydrostatic code
2401      - to be done: no-slip lateral boundary conditions
2402    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2403    o implement Implicit Vertical advection for pTracers
2404    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2405      (implemented also for implicit vertical diffusion & advection)
2406    o OBCS: extend application of tracer open boundary conditions
2407      to a strip beyond the boundary of width Olx/Oly
2408    o add call monitor to TAF set of required calls (flow directives)
2409      and include in natl_box_adjoint
2410    o untangle a few ifdefs related to cost, ctrl, autodiff
2411      untangel a few ALLOW_ECCO_OPTIMIZATION
2412    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2413      (theta2, salt2 in ecco_cost_weights)
2414    
2415    checkpoint56c_post
2416    o OBCS as control variables
2417      - update ctrl_ad_diff.list, obcs_ad_diff.list
2418      - remove balance of obcs controls from default
2419      - fix index bug nobcs in ctrl_init
2420      - fix dummy fields filen in ctrl_pack
2421      - add dummy weights for obcs
2422    o lsopt: comment out fort.94 output
2423    o optim:
2424      - remove unnecessary header files
2425      - adjusted namelists
2426      - add xerbla.F to Makefile
2427    o exf:
2428      - multiple modifications of exf_check_range
2429      - unit change in exf_init_runoff from [m/year] to [m/s]
2430    o mdsio:
2431      - i/o-vector change debugLevel from debLevA to debLevB
2432    
2433    checkpoint56b_post
2434    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2435      is called from DO_THE_MODEL_IO
2436      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2437      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2438      - clean up PTRACERS_WRITE_TIMEAVE a little
2439    o add another verification experiment that tests both the cfc-pkg and
2440      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2441      reactive tendencies treated inline with regular timestepping
2442    o testreport previously did a lousy job of comparing small numbers, so
2443      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2444      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2445      testreport.
2446    o ptracers_monitor: bug fix for MPI
2447    
2448    checkpoint56a_post
2449    o GCHEM: finish reorganizating the package
2450      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2451        (introduces another 3D-array for each passive tracer, but only if
2452        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2453        gchemTendency is not needed because the timestep is done separately)
2454      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2455      - GCHEM is now---more or less cleanly---separate from PTRACERS
2456      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2457        so clear to me how that should be done in a general way.
2458    o CFC: improve formatting of output in CFC_ATMOS
2459    o PTRACERS:
2460      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2461        that ALL experiments with ptracers enable can be checked. This makes
2462        GCHEM_MONITOR obsolete.
2463      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2464        monitorFreq
2465      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2466    o add PTRACERS (PTR0[1-5]) to testreport output
2467    o exf_check_range:
2468      * default changed to .TRUE.
2469      * will check values for niter0 if debLevA, every timestep if debLevB
2470      * STOP in exf_check_range if 'out of range'
2471      * range chosen generous to allow for potential extema
2472      TBD: a version with stricter range
2473           permitted range would be runtime parameters
2474    o GMredi:
2475      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2476      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2477      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2478    o GCHEM:
2479      - move call to GCHEM_FORCING_SEP, so that it is now called before
2480        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2481      - introduced a useGCHEM runtime flag and applied it everywhere.
2482      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2483        this flag is now only visible within GCHEM-pkg routines.
2484      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2485        be replaced by a 3D array that is computed before thermodynamics; for
2486        this, the tracer ID iTracer had to be included into the parameter list
2487        of ptracers_forcing
2488      - set up forward_step to call gchem_forcing, that will replace
2489        gchem_forcing_int in ptracers_forcing
2490      - cleaning up
2491    o small cleaning of exch2: remove files that are also in eesupp/src
2492    
2493    checkpoint56
2494    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2495    o mnc: cleanup "full" files--fixes out-of-memory problem
2496    o ECCO-GODAE
2497      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2498      * fully merged and updated from SIO code
2499        windstress sign change affects
2500        - exf_inscal_[u/v]stress
2501        - sign of xx_tau[u/v] adjustments
2502        - signs in cost_scat
2503      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2504      * natl_box_adjoint updated and compressed
2505      * 2-level checkpoint switch added
2506        (tested in EXP. 1 of natl_box_adjoint)
2507      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2508    o SVD
2509      * first complete, non-hacked version for SVD calculations
2510      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2511        performed via direct access files admtlm_vector.it????
2512        (via ctrl_[un]pack)
2513      * optimcycle is used for ARPACK iteration counter
2514        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2515      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2516        and add linear transforms where necessary
2517      * controls are initial/final SST, SSS (can be extended; need to check
2518        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2519    o mdsio: filename info to both stderr, stdout
2520    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2521      from sign change
2522    
2523    checkpoint55j_post
2524    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2525      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2526    o add consistent build directories and .cvsignore files to verification
2527    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2528    o make all subroutines 30 or less characters in length for certain older
2529      compilers to work (a thorough search only turns up two routines in
2530      pkg/ptracers)
2531    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2532      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2533    
2534    checkpoint55i_post
2535    o change arrays for total vertical diffusivity (2.D if explicit,
2536      3.D if implicit) ; each ptracer uses its own background value.
2537    o added mnc/NetCDF output capability to ocn_compon_interf
2538      - added bits to verification/cpl_aim+ocn so that it can run on
2539        ITRDA and other clusters without the mpirun "-wd" option
2540    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2541      configuration
2542    o give MNC the ability to create additional files rather than
2543      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2544      - the default is just less than 2GB which is a practical limit
2545        on many systems
2546    o Compute the non-local term using either KPP vertical diffusivity (=default)
2547       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2548    
2549    checkpoint55h_post
2550    o add verification test "vermix"
2551    o remove all the *_ioinc flags and replace with the single global
2552      outputTypesInclusive flag
2553    o allow to set a vertical profile of vertical diffusivity for T & S
2554    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2555    o useMNC moved from data.mnc to data.pkg
2556    
2557    checkpoint55g_post
2558    o Renaming carbon AD experiments to comply with testreport conventions
2559    o Updating adjoint of Held-Suarez hs94.1x64x5
2560    o Fixing directives for non-ECCO forward_step, after ECCO directives
2561      have been fixed to avoid recomp. of do_oceanic_phys
2562      Works well for global_ocean.90x40x15,
2563      but recomp. issue remains for carbon
2564    o Updating adjoint output for natl_box_adjoint after
2565      pkg/ecco has been modified (see taga c55d_post)
2566    
2567    checkpoint55f_post
2568    o rename to timeave_init_fixed
2569    
2570    checkpoint55e_post
2571    o some delicate re-shuffle of store directives to avoid one
2572      extra call of do_oceanic_physics
2573      affects ecco_the_main_loop.F, do_oceanic_physics.F
2574      checkpoint_lev1_directives.h
2575    o NB: this may break global_ocean adjoint temporarily,
2576      but it is clear how to fix it. Will do later, need this now.
2577    
2578    checkpoint55d_post
2579    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2580    o ecco_cost_weights is modified to 1x1 runs
2581    o modifs to allow observations to be read in as
2582      single file or yearly files
2583    o enable to read exf forcing fields as either
2584      single file or yearly files (flag useExfYearlyFields)
2585    checkpoint55d_pre
2586    
2587    o switch between 2-level and 3-level checkpointing
2588    o add ability of MNC to write local and "partial" (eg. 2D slices where
2589      the full 3D field is never actually stored) arrays to NetCDF files
2590      with the correct (that is, the complete multi-dimensional) set of
2591      array indicies
2592      - used in mom_vecinv() to write the diagFreq output
2593      - tested (demonstrated) in verification/aim.5l_cs
2594    o further mnc-ification
2595      - add verification/lab_sea to the list with mnc setups
2596      - fix undefined mnc v-names in cd_code
2597      - add kpp to mnc output (both snapshot and timeave)
2598    o non-hydrostatic code
2599      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2600        in calc_gw.F
2601      - defaults to viscAh
2602      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2603        friction or Leith) in non-hydrostatic mode, as long as there is
2604        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2605    o pkg/cost
2606      extend simple cost functions to treat time mean quantities
2607      (T,U,V) via cost_accumulate_state from cost_tile
2608    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2609        be 2 times larger than the minimum size the advection scheme requires.
2610        now get a perfect conservation of salt in advect_cs test-exp (updated)
2611    o GGL90 (Gaspar's TKE mixed layer)
2612      - add horizontal diffusion of TKE, requires exchanges in
2613        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2614        default. In OPA there is no horizontal diffusion of TKE but the
2615        mixing coefficients are computed from a horizontal average of TKE of
2616        6 points or so. I think that diffusion has a little more physical
2617        justification.
2618      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2619        was in vain)
2620      - mask tke-variable in ggl90_init
2621    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2622    o fix biharmonic diffusion on CS-grid.
2623    o more obcs stuff
2624      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2625        for reading boundary values. This routine is called from
2626        obcs_prescribe_read
2627      - updated obcs_check
2628      - changed sponge layer relaxation parameter units for days to seconds
2629      - turned off sponge layer by default
2630      - changed argument list of OBCS_CALC to myTime+deltaTclock
2631      - fixed about 35 bugs in obcs_external_fields_load
2632    
2633    checkpoint55c_post
2634    o obcs stuff
2635      - new runtime flags useOBCSprescribe, useOBCSbalance
2636      - re-arranged obcs_calc
2637      - moved exf_getobcs to obcs_prescibe_read
2638        obcs_prescibe_read is called after ORLANSKI stuff
2639        and independent of it (executable can contain all).
2640      - updated obcs_check
2641      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2642        These may be necessary only if tangential velocities are
2643        prescribed at OB, not sure, needs testing.
2644    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2645      which simplifies the calls and passes the ifc check-bounds test
2646    
2647  checkpoint55b_post  checkpoint55b_post
2648  o add a 2D scalar, Z location, exchange_2 routine.  o add a 2D scalar, Z location, exchange_2 routine.
2649  o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows  o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
# Line 65  o add two new packages Line 2706  o add two new packages
2706    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2707    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2708      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2709      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2710  o add offline package  o add offline package
2711  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2712    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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