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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1132 by jmc, Thu Jun 25 15:55:40 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    checkpoint61r
8    o pkg/seaice:
9     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
10      1. introduce fields for time step (N-1)
11      2. do not use levels 2 and 3 anymore (but keep them)
12      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
13         includes changes to pkg/thsice/thsice_get_velocity.F,
14         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
15         pkg/obcs/obcs_apply_uvice.F.
16     - completely remove code for leap-frog time stepping for second order
17       advection
18     - adjusted adjoint accordingly;
19       gradient checks have improved by an order of magnitude!
20    
21    checkpoint61q
22    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
23     - the boundary conditions along open boundaries are unclear, because the
24       associated masks are set to zero and are thus treated as closed when
25       applying the slip-boundary conditions.
26     - move initialisation of grid variables from seaice_init_varia to _fixed
27    o adding doc/diags_changes.txt
28    o model/src:
29      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
30       to avoid "_diags" naming if no relation to pkg/diagnostics.
31      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
32       file and only call PLOT_FIELD_XYZ if debugMode=T.
33      remove few PLOT_FIELD_XY calls outside initialisation.
34      remove few unnecessary BARRIER.
35    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
36      of salt_plume package in Southern Ocean
37    o pkg/thsice:
38     - fix hOceMxL in overlap (needed for sea-ice advection);
39       update output of experiment global_ocean.cs32x15.icedyn.
40    o pkg/seaice:
41     - make the (placeholder-)tracer IceAge a little more meaningful
42      by avoiding ridging of age due to convergent ice flow
43     - add diagnostics for surface temperature, atmospheric and oceanic
44       heat flux, and atmospheric and oceanic ice growth
45    
46    checkpoint61p
47    o eesupp (global_max & global_sum):
48     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
49     - remove starting & endding barrier (no longer needed)
50    o pkg/mdsio, writelocal:
51       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
52       (remove the STOP): uses shared buffer IO to store data from all threads
53       and then let master-thread write nThreads tiles.
54    o pkg/mdsio (read/write field):
55     - tiled IO done in 1 piece (all levels at a time);
56     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
57     - multi-threaded: allow to read/write local (non-shared) array
58       (was already working with singleCpuIO ; now works also without);
59       => no longer needs barrier call after reading a file (added inside
60       mds_read/write field).
61     - move barrier calls outside gather/scatter_2d to mds_read/write_field
62    o pkg/obcs/exf
63      - exf_getffieldrec.F: add a few ". _d 0" and
64                            add code to catch the case fldperiod = 0.  
65      - obcs_precribe_read.F: change if statements so that they match
66                              the variable type (_RL)
67      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
68        exf_iprec) as part of namelist EXF_NML_01
69    o pkg/mdsio:
70      - read/write tiled (local) files: read/write 1-level tile chunk at a time
71        (instead of segment of length sNx); expected to speed up tiled IO.
72    o pkg/exch2:
73      - take buffer copy from/to array out of S/R exch2_send/recv into new
74        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
75        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
76      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
77      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
78        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
79        including Topology header file (and common blocks).
80      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
81        remove 2nd exch call in exch2_s3d_rx (no longer needed).
82      - document S/R arg. list (+ update some comments)
83    o pkg/seaice:
84      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
85        temperature and humidity over sea ice based on climatological values.
86      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
87        of LSR (this change is expected to change the results slightly because now
88        it uses slightly difference moduli from the second last LSR solution, but
89        that is more consistent with the stress computations; this part of the code
90        is not tested in the verification experiments)
91      - fix diagnostics for flux of ice in case of B-grid
92      - turn strain rates eij and press into global fields within global
93        common block in SEAICE.h for more straighforward diagnostics
94      - fix diagnostics for principal stress components, press, zeta, eta
95        to give something meaning full
96    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
97      new output (all 4 tests) using default rotationPeriod.
98    o pkg KPP:
99      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
100      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
101        and normal grid from 1 to Nr)
102    o Fix computations of L4rdt in mom_calc_visc.F
103    o eesupp:
104      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
105      should be called before a "stop" if we know that all process are going
106      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
107    
108    checkpoint61o
109    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
110    o model/src/ini_curvilinear_grid.F:
111       compute angleSin/CosC when they are not read from a file
112    o pkg/seaice:
113       add pseudo time stepping for LSOR
114    o pkg/exch2:
115       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
116    o pkg/seaice:
117       Adding separate sea ice albedo, drag coefficients, and HO in Southern
118       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
119    o SingleCpuIO:
120       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
121    o pkg/seaice:
122       put exchanged variable in (local) common block for MPI+Multi-Threads
123       to work (necessary with exch1, and for now with exch2 too).
124    o verification: to get more experiments tested with mpi, mth and mpi+mth,
125      change tiling of:
126       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
127       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
128      update output of exp:
129       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
130       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
131      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
132                       (note: output.txt generated on faulks using only 1 tile)
133    o eesupp & mdsio (SingleCpuIO):
134     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
135       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
136       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
137     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
138     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
139       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
140    o pkg/exch2:
141     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
142       read parameter file "data.exch2" if it exists; otherwise try default regular
143       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
144     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
145       with new code (not to be used, just as a backup solution).
146     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
147       in utils/exch2/input.
148    
149    checkpoint61n
150    o eesupp & mdsio (SingleCpuIO):
151      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
152        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
153        receive real*4 array (instead of real*8) to read/write 32.bit files.
154        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
155         and remove new mapping S/R)
156    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
157      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
158        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
159        when using exch2. Add S/R to map global io-buffer to global model array.
160      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
161    
162    checkpoint61m
163    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
164      and add 3 other S/R for other types (R4,R8,RS).
165      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
166    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
167     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
168     - reduce number of macro definitions (keep only those which are used);
169       can always call directly the corrresponding S/R if needed.
170     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
171       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
172     Fixed wrong type of arg in:
173       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
174       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
175     To fix: global_sum of var in common block is wrong (multi-threaded) in:
176       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
177     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
178    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
179      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
180    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
181    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
182      edges are closed (zero depth); might happen with "blank tiles";
183      for now, disabled if using OBCS.
184    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
185      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
186    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
187      to reduce length of 1.D array print in STDOUT.
188    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
189      + use 48 tiles (16x8): this will allow to test "blank tiles".
190    o start to test MPI + multi-threaded (change testreport to skip tests
191      where number of tiles do not match).
192    o genmake2: add option "-omp" to turn on Open-MP ;
193      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
194    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
195      and keep the original tile numbering. Note: compatible with old
196      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
197    
198    checkpoint61l
199    o Overlaps had been forgotten in calculating ijk keys : fixed
200    o fix cyrus makedepend for gcc 4.4
201    o experiment fizhi-cs-aqualev20:
202      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
203      and generate new output. Note: new output is much closer to the old
204      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
205      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
206    o pkg/fizhi:
207     - change to avoid indices going deliberately over array-bounds
208     - remove unnecessary MPI stuff
209     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
210     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
211       does not go over array-bounds and therefore returns reliable output.
212     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
213       this S/R has 4 output arguments, which are used inside "get_alarm";
214       when it is called with the same variable "ndum" in place of several
215       output arguments, this produces weird side effect inside "get_alarm"
216      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
217       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
218       address) and produces error.
219    o tools/gemake2: (March 27-29 2009)
220      with option "-mpi": link *_mpi files from "MODS" dir (this is what
221      testreport does).
222    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
223    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
224       update lab_sea.lsr & lab_sea.salt_plume results
225    o pkg/seaice:
226      Major overhaul of the LSOR solver: change discretization from original
227      finite differences to finite volume. The old routine is still in the
228      file seaice_lsr.F and can be turned on with the CPP-flag
229      SEAICE_OLD_AND_BAD_DISCRETIZATION
230      Along with this change, the discretization of the strain rates is changed.
231      The same flag turns on the old discretization in seaice_calc_strainrates.F
232      All verification experiments with seaice are affected (except for
233      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
234      results by setting the above flag.
235      Further changes involve changes in defaults:
236      - ALLOW_FLOODING is defined and turned on by default
237      - SEAICEadvSnow = .true. is now the default
238      - SEAICEadvSalt = .true. is now the default
239      - SEAICEadvAge  = .true. is now the default
240      - SEAICE_clipVelocities  = .false. is now the default
241                                         (as per J. Zhang's recommendation)
242      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
243        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
244      - seaice_growth: replace computation of UG by a simple copy from wspeed
245    
246    checkpoint61k
247    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
248      seaice_lsr: fixed a few metric terms,
249                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
250                  add more debugging diagnostics
251      seaice_evp: removed superfluous many metric terms of FV discretization
252                  of stress divergence
253                  affects lab_sea, lab_sea.hb87
254      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
255                  of stress divergence for non-evp solver
256                  (this part is not tested anywhere)
257      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
258                  they were effectively only half slip
259                  affects lab_sea.hb87
260      updated all relevant verification experiments (except lab_sea//output_adm.txt
261        which was left over, but fails at level 7 & 6)
262    
263    checkpoint61j
264    o pkg/seaice: turn a few hard wired parameters into run time parameters
265    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
266      time in seconds as promised by the usints in seaice_monitor and exf_monitor
267    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
268      that are not cubed-sphere grids
269    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
270    o pkg/ctrl:
271      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
272    o non-hydrostatic (calc_gw.F):
273      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
274      update output of exp. global_ocean.cs32x15.viscA4
275    o remove backward compatibility for thetaMin,phiMin
276      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
277    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
278      interpolated wind field not only for curvilineargrid=.true., but also
279      for a rotated grid (rotateGrid=.true.)
280    o pkg/exf: add capability to bypass interpolation for runoff
281      by setting yet another CPP-flag
282    o eesupp/src, B-grid exchange:
283      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
284    o autodiff
285      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
286      allows to switch to single-prec common blocks;
287      corresponding switch occurs in tamc.h, integer isbyte
288      TAF store directivs "byte" and "kind" seem equivalent;
289      Most tamc.h have been updated correspondingly.
290    
291    checkpoint61i
292    o autodiff:
293      fix autodiff_sore/_restore indices for obcs
294      (spotted by I. Hoteit, M. Mazloff)
295    o pkg/autodiff, pkg/ctrl:
296      Add flag to reduce all tapelev I/O to single-prec.
297      In data.ctrl set
298        doSinglePrecTapelev = .TRUE.
299    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
300      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
301    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
302      real fresh water flux (not yet)
303    o pkg/mdsio & rw:
304     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
305     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
306    o pkg/flt:
307     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
308       init_fixed & ini_varia.
309     - clean-up & simplify linear interpolation S/R:
310       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
311     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
312     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
313     - add vert. coordinate & horiz. indices to output files.
314     - change vertical position in initial condition, from index to depth [m].
315     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
316       (easier to get to a curvilinear grid) ; delX,delY no longer used.
317    o pkg/ggl90: a few modifications:
318     - fix bottom boundary condition, and interpolation of KappaE
319       near top and bottom
320     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
321     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
322     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
323    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
324      (maintain temporary backward compatibility, until next checkpoint)
325    
326    checkpoint61h
327    o pkg/diagnostics with "periodic averaging diagnostics":
328      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
329    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
330    o pkg/obcs: fix loop ranges for balancing code
331    o pkg/flt:
332     - improve criteria for finding which tile owns a float.
333     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
334    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
335      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
336      with ocean biogeo)
337    o pkg/flt:
338     - do some cleaning and fix the restart ;
339     - add output.txt in flt_example/results to get this pkg tested.
340    o genmake2: add an EXTENDED_SRC option and flag.
341       for now, cannot be turned on on command line (only through genmake_local)
342    o pkg/mdsio: read/write vector:
343     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
344     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
345       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
346     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
347      (drop to 4 digits matching for grad). But this test does not look very
348      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
349    
350    checkpoint61g
351    o pkg/flt:
352      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
353       + make OPTIONS file more standard.
354      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
355      - fix _BYTESWAPIO CPP-Flag
356      - standard reading of file-parameter "data.flt"
357      - fix argument list of S/R FLT_RESTART
358      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
359    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
360    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
361      a still unfixed compiler/optimization bug
362    
363    checkpoint61f
364    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
365      update results of global_ocean.cs32x15.icedyn test.
366    o move getcon.F from model/src to pkg/fizhi.
367    o pkg/exf: add parameter for extrapolation of temp up to the surface
368       and option to prevent negative evap (in bulk_largeyeager04 only).
369    o Prather Advection scheme: fix tracer conservation for divergent flow
370      (e.g., when using NonLin Free-Surface).
371    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
372    o gmredi (Visbeck-variable-K):
373     - add more parameters to Visbeck-variable-K.
374     - use a 5 points average for dSigmaR in Visbeck-K calculation
375       (more "homogenous": same stencil and same weights as in dSigmaH)
376     - update output of ideal_2D_oce experiment.
377    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
378      (#undef REAL4_IS_SLOW)
379     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
380       coordinate variable
381     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
382       (surface forcing fields), removes some of the functionality
383     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
384     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
385       probably not all: copy _RS surface flux fields to RL field before
386       calling DIAGNOSTICS_FILL
387     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
388       real*4 (CALL EXCH_*_RS) versions.
389     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
390       (generate new output).
391    
392    checkpoint61e
393    o gmredi (Visbeck-variable-K):
394      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
395      - change computation of Visbeck-K where Slope > Smax :        
396        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
397        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
398    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
399      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
400    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
401    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
402      does not become too large (to avoid precision problems in implicit-diffusion
403      solver); update ideal_2D_oce output.
404    o pkg ggl90:
405      - in ggl90_cal.F: compute only one set of visc/diff, used to
406        step forward TKE/T/S/momentum
407      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
408        have Prandlt =1)
409    o gmredi (fm07):
410      - add lower limit on Transition layer thickness + lower limit on 1/lambda
411      - allow to set few more params from data.gmredi
412    o pkg ggl90:
413          - add missing sqrt(2) factor in computation of mixing length
414            scale in ggl90_calc.F
415            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
416    
417    checkpoint61d
418    o adjoint modifs
419      - adapt to new field rhoInSitu
420      - allow to revert from StoreDynVars2D, StoreDynVars3D
421        to individual fields
422        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
423    o store 3-D (in-situ) density in commom block (DYNVARS.h)
424     - save 1 rho computation.
425     - no longer modify T & S inland when using down_slope pkg.
426    o gad_som : allow to switch to SOM advection for T & S without corresponding
427      pickup files (using new S/R: MDS_CHECK4FILE).
428    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
429      (for useSingleCpuIO to work in multi-threaded)
430    o pkg/shelfice:
431     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
432       with SHELFICEtopoFile in data.shelfice
433     - move code for reading ice shelf topography and modifying hFacC into separate
434       subroutines of the shelfice package
435     - separate initialisation of "fixed" and "variable" variables
436     - kTopC is not (yet) replaced by kSurfC, although this is possible
437    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
438    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
439      and rename:
440      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
441      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
442    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
443    
444    checkpoint61c
445    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
446      to add mass source/sink of fluid in the interior (3-D generalisation
447      of oceanic real-fresh water flux).
448    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
449    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
450    o new pkg: down_slope
451      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
452      - presently, modify T & S inland (dwnslp_calc_rho.F).
453        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
454      - implementation for ocean in P-coords not tested.
455      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
456    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
457      (to facilitate conversion of oceanic pkg to p-coordinate).
458    o change FIND_RHO to FIND_RHO_2D :
459      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
460    o new pkg: cheapaml
461    
462    checkpoint61b
463    o exch2:
464      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
465      - no longer depend on the order sequence (N,S,E,W).
466      - 3rd exchange no longer needed (tested with 24 tiles).
467      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
468      - exch_UV_A-grid readily available (but not yet tested).
469      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
470      (both are no longer needed) in exch_uv: no effect in forward run; but
471       get truncation error differences with adjoint exch.
472    o exch2:
473     - change index-bounds storage (moved from target to local tile,
474       more intuitive this way) ; rename/remove some variables.
475     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
476    
477    checkpoint61a
478    o exch2/matlab-topology-generator:
479      fix bug in index bounds for N-S internal exchange (hard to tell if this
480      had any effect on the solution).
481    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
482      is exceeded
483    o testreport: modify syntax of awk, so that it works also with
484      awk, and not only with nawk and gawk
485    
486    checkpoint61
487    o autodiff
488      Change default for TAF usage by removing argument '-nonew_arg'
489      This changes TAF subroutine argument list (ordering of active var.)
490      Omission of this flag leads to incompatibility w.r.t. TAMC
491      To restore TAMC-compatibility, need following modifs:
492      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
493      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
494      Tested TAF version is 1.9.22
495      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
496    
497    checkpoint60
498    --->>> This is the last checkpoint for which generating the adjoint
499    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
500    --->>> by default.
501    --->>> Future checkpoints will ommit this flag by default.
502    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
503    o pkg/grdchk: Add gradient check to etan0 perturbations.
504    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
505    o pkg/autodiff: more flexibility in zeroadj.
506      model/src: modifying do_oceanic_phys.F accordingly.
507    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
508    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
509      special setup of gmredi for which the adjoint is stable
510      enough for parameter optimization.
511    o bridging the gap between eddy stress and GM.
512      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
513          along with a change in CPP option (now ALLOW_EDDYPSI).
514      -> when using GM w/ GM_AdvForm:
515          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
516          is applied either in the tracer Eq. or in momentum Eq.
517          depending on data.gmredi (intro. GM_InMomAsStress).
518      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
519      The key modifications are in model/src/taueddy_external_forcing.F
520      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
521    
522    checkpoint59r
523    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
524      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
525      fix option to read coriolis(@ cell-corner) from files with CS-grid.
526    o pkg/mnc: add some attributes to standard 1D-coordinate variables
527    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
528      mass points, when using mnc for output
529      - add runtime parameter (missing_value, missing_value_int) to override
530        default (which is the value of getcon('UNDEF'))
531    o pkg/mnc: prepare mnc for the actual use of missing values with the
532      diagnostics package: small fix in mnc_cw_readwrite.template and more
533      initialisation of never used fields
534      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
535      versions
536    o pkg/thsice/thsice_ini_vars.F added default initial values so that
537      thermodynamics sea ice solver does not blow up when some initial fields
538      are missing.
539    o move from external_forcing_surf.F to ini_forcing.F
540      the p-coord. hack consisting in using pLoad to set phi0surf ;
541      update output of tutorial_global_oce_in_p (affected @ truncation level).
542    o Freshen up a bit hs94.1x64x5, notably:
543      remove rotationPeriod and tRef=5*0. (adjoint only), and add
544      exactConserv=.TRUE.
545    o pkg/generic_advdiff:
546      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
547      applies to files where Temperature & Salinity 2nd Order moments are used.
548    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
549      this uses a dynamically allocated internal state data structure
550      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
551      and requires a fortran 90 compiler
552    
553    checkpoint59q
554    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
555       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
556    o Refresh tutorial_global_oce_biogeo, notably:
557      - change bathymetry (put back seamounts in ACC, use hFacs)
558      - change EOS (POLY3 --> JMD95Z)
559      - use Bryan-Lewis vertical diffusivity
560      - use multidimensional advection
561      - remove old virtual virtual in dic pkg, now done through ptracer pkg
562      - change a couple of parameters in dic pkg
563    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
564    o pkg/obcs: change default to OBCSfixTopo = .true.,
565      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
566      - replace "debugMode" with "debugLevel .GE. debLevB"
567    o implementation of TAF directives for gchem,cfc,dic
568    o remove "exp5" (replaced by tutorial_deep_convection).
569    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
570      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
571      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
572      --> changes results in exp4, seaice_obcs
573    o tutorial_deep_convection :
574      update the set-up and increase resolution and domain size ; start
575      from pseudo initial conditions = output at t=120mn in order to see
576      something happening when running testreport.
577    o pkg/seaice: add os7mp as an advection scheme
578                  add check for advection schemes
579                  add a flag for restoring T and S underneath sea ice
580    o pkg/my82: add netcdf-support and diagnostics
581    o thsice pkg:
582      - Now hsMax limits snow height by turning it into ice following
583        flooding scheme (and now conserving energy)
584      - Slight rewriting of the formula in thsice_calc_thick.F
585      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
586      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
587    
588    checkpoint59p
589    o gchem / dic / cfc :
590      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
591      - add new parameter files: "data.dic" & "data.cfc" ;
592      - various re-arrangement in initialisation & header file ;
593      - fix tutorial_global_oce_biogeo for multi-threaded test.
594    o pkg/dic: test for "pickup_dic" file when restarting ;
595      if no pickup-file, can restart with a re-initialised pH (same as it did
596      before) providing pickupStrictlyMatch is set to False.
597    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
598      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
599    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
600      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
601    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
602     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
603       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
604    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
605       scheme to use for vorticty-term ;
606     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
607       (with default selectVortScheme, return to original discretisation)
608     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
609    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
610    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
611      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
612      also fix diagnostics VISCAHW & VISCA4W.
613    
614    checkpoint59o
615    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
616    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
617      move a few statemens out the main loop into separate loops
618    o pkg/shelfice:
619      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
620        (kg/m^2/s), does not break tests, because in verification/isomip,
621        rhoConstFresh=rhoConst (by accident)
622      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
623      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
624        new file model/src/seawater.F, so that they are available for all pkgs.
625      - convert potential temperature into in-situ temperature. This changes the
626        isomip tests => update tests
627    o add a flag writePickupAtEnd (default=true) to be able to suppress
628      writing a pickup at the last timestep
629    o tools/mpack-1.6 :
630      - disable automake (not working) and autoconf (not needed).
631      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
632        also cleaner with much less compilation warnings.
633    o pkg/profiles:
634      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
635      (for "less than 32 characters name" compiler requirement)
636    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
637      conditions that have a different sampling frequency than S/T/U/V obcs
638    o pkg/diagnostics (stats-diags):
639      - fix global Min/Max in case 1 processor get only empty tiles
640    o genmake2: replace (4 times)
641         make genmake_tc_1.o >> genmake_warnings 2>&1
642      with
643         COMM="$CC $CFLAGS -c genmake_tc_1.c"
644         echo $COMM >> genmake_warnings
645         $COMM >> genmake_warnings 2>&1
646      to make genmake2 always see the value of CC as specified in the optfile.
647    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
648      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
649      - modify verification advect_cs test to test SOM-advection on CS-grid.
650    o pkg/ctrl:
651      - Rewrite of ctrl_map_ini_ecco.F,
652        introducing a generic routine (ctrl_map_ini_gen.F).
653      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
654    
655    checkpoint59n
656    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
657      number in dedicate array "hdiag":
658      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
659        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
660      - many small changes (integer format) for large number of diagnostics
661      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
662        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
663    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
664      usingSphericalGrid, this allows to define the rotated grid coordinates
665      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
666      geographical coordinates according to the inverse of the rotation defined
667      by the Euler angles, so that Coriolis parameter and online-interpolation by
668      exf works with the geographical coordinates on XC/YC/XG/YG.
669      Naturally, this feature does not work with all packages, so some
670      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
671      profiles), because there the coordinates are assumed to be regular
672      spherical grid coordinates.
673    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
674      - introduce isopycnal diffusion coefficient control.
675    o tools/adjoint_options:
676      - additional control vector components.
677    o pkg/mnc: have mnc create marginally meaning full coordinate variables
678      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
679    o pkg/mypackage:
680      - add example of read/write pickup for state-var ;
681      - add entry points to the main code for state-vars diags & write-pickup.
682    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
683      transitions for useExfYearlyFields
684      - add new subroutine that determines the file to read from for
685        use*YearlyFields = .TRUE. and .FALSE.
686      - add a verification experiment to global_with_exf that tests
687        useExfYearlyFields with USE_EXF_INTERPOLATION defined
688    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
689      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
690      subroutines (which could be generated from a template, because they are
691      almost identical), for now they are included in obcs_prescribe_read.F for
692      simplicity
693    o pkg/exf:
694      - add a little more diagnostic to exf_interp_read (in analogy to
695        mds_read_field, can be turned off with debugLevel < debugLevA=1)
696      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
697        ugly but fast by unrolling short inner loops, inserting a unroll=8
698        directive in routine lagran, and splitting a loop and making do while the
699        outermost loop (the latter requires the intoduction of index arrays)
700    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
701    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
702      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
703    o verification/seaice_obcs: updated for restart test and latest options
704    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
705      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
706      for now this is only available for the C-grid code and also within
707      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
708    
709    checkpoint59m
710    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
711      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
712    o gad_som : fix flux output (& diagnostics) to have same units as other  
713      advection scheme fluxes (was previously multiplied by deltaT).  
714    o added verification/seaice_obcs both to test seaice open boundaries
715      and to provide an example matlab scrpt for generating them
716    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
717    o pkg/salt_plume: clean up salt_plume_frac.F to
718      remove redundancy in PlumeMethod 1 and 4
719    o pkg/kpp: added saltplume diagnostics
720    o pkg/obcs and pkg/seaice:
721      - do not set uice and vice to zero when OB*icefile are unspecified
722      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
723      - moved seaice tracer obcs after call to seaice_growth
724    o pkg/salt_plume: added various options for salt plume depth
725      criterion and for vertical distribution of the salt
726    
727    checkpoint59l
728    o pkg/ptracers: new version of ptracers pickup:
729      read meta file and write only fields which are needed to restart.
730      ( same logic as main pickup file ; also using pickupStrictlyMatch )
731    o pkg/seaice:
732      - add timescale for melting due to warm mixed layer as a means of
733        setting SEAICE_availHeatFrac more conveniently
734      - add a CPP-flag/runtime parameter check for flooding algorithm
735      - reformulated availHeat in seaice_growth.F to be independent of AREA
736    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
737      unit changes
738    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
739    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
740      SX vector computer.
741    o pkg/seaice:
742      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
743        seaice forcing fields can now be read only through pkg/exf
744      - removed some unused halos
745    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
746    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
747      or U/VICE from U/VWIND before computing U/VSTRESS
748    
749    checkpoint59k
750    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
751      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
752    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
753      all experiments pass when compile with un-initialised var. checking option.
754    o added pkg/salt_plume
755    o script to test restart (for now, in MITgcm_contrib/jmc_script)
756    o pkg/seaice: new read/write pickup version.
757      read meta file and write only fields which are needed to restart.
758      ( same logic as main pickup file ; also using pickupStrictlyMatch )
759    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
760    o lab_sea.hb87: modify the domain & update output.hb87.txt :
761      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
762      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
763      process. Fixed here by closing the domain at the Northern boundary.
764    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
765    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
766      a set of consecutive levels in/from a 3-D array.
767    o pkg/ptracers:
768      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
769      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
770    
771    checkpoint59j
772    o in pkgs: dic, obcs, offline, rbcs:
773      standard way to compute coeff. for time interpolation between 2 time reccords
774      which retains full precision (& make results less dependent on compiler).
775      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
776    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
777      packages instead of reading ice cover and wind speed separately
778    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
779     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
780      to allow to compile customized code before the update)
781    o cleaning-up:
782      - fix CPP instruction syntax in pkg/obcs
783      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
784        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
785      - fix some threads issue in IO parts.
786    o pkg/dic:
787      - add tons of "_d 0" (--> much better testreports !)
788       and then update outputs of tutorial_global_oce_biogeo
789    o pkg/mom_fluxform:
790      add a special version of momentum advection intended to conserve momentum
791      next to a bathymetry step or a coastline edge. (default = off = #undef)
792    o new read/write pickup version:
793      - for now, only implemented for main (mdsio) pickup file.
794      - write out only what is needed to restart; merge pickup_nh , pickup_ph
795        and main pickup together.
796      - read meta file; read only what is needed to restart; stop if a field
797        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
798        if it make sense (even if the restart is not perfect).
799      - if no meta file, assume that pickup to read corresponds exactly to
800        a pickup that would currently be written.
801      - read pickup written in the old format (until checkpoint59i) if it
802        recognizes an old meta file (no field-list).
803      - add a meta file in exp. which starts from a pickup: 2 cases:
804        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
805         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
806        b) a meta file describing the content of the associated pickup file
807         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
808    o pkg/mdsio & pkg/rw:
809      - new routine to read a meta file ; new set of routine to read
810        Multiple-fields file (with meta file).
811    o added open boundary conditions capability for seaice
812        HSNOW, HSALT, UICE, and VICE
813    
814    checkpoint59i
815    o adjoint:
816      * fix multiDimAdvection adjoint
817        (partial recomputation problem by TAF for fVerT(:,:,kDown)
818        and comlev1 size definition (maxpass vs. max. number of tracers)
819      * verification/global_ocean.90x45x15 adjoint now tests
820        NLFS and multiDimAdvection using DST3 (=30)
821      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
822    o pkg/kpp: add "_d 0" to real constant (if missing);
823      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
824      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
825    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
826      for internal parameters related to restart process (formerly from PARAMS.h)
827      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
828    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
829      as argument. (only atm2d & obcs write_pickup have not yet been updated)
830    o pkg/monitor:
831      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
832      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
833      - account for deep Atmosphere factor and density factor (anelastic)
834    o added open boundary conditions capability for seaice HEFF and AREA
835    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
836      thermodynamics
837      - requires a little reorganization, which affects the testreport results
838        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
839        so that now the conservative form is tested
840      - add a few comments
841    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
842    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
843    o add new diagnostics to seaice: advective, diffusive fluxes (only for
844      multidim-advection, for scheme 2 they are not filled) and transports,
845      thermodynamic growth rates
846    o change units of EmPmR (inside the code, + within coupling interface)
847      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
848      Affects results @ truncation level (cg2d match) and update output of
849       experiments: lab_sea(6), global_ocean.90x40x15(10),
850      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
851      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
852      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
853      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
854    
855    checkpoint59h
856    o pkg/exf:
857      - improve vectorization by moving if-statement out of loops in
858        exf_mapfields, exf_radiation
859      - exf_bulkformulae.F: introduce 2D fields and vectorize code
860    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
861    o testreport:
862      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
863        monitor & update offline_exf_seaice exp. output.
864      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
865    o pkg/seaice:
866      - bug fix in the evp solver: boundary conditions were affected be
867        masking of zMax/zMin (changes results)
868      - minor bug fix in boundary conditions in seaice_calc_strainrates
869        (changes results for no_slip)
870      - seaice_lsr.F: make interpolation of eta dependent on boundaries
871      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
872      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
873        stress formulation and no-slip boundary conditions
874    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
875      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
876    o pkg/seaice: a first HSALT time stepping equation has been checked in
877    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
878      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
879      without requiring DO-IF statements
880    o pkg/thsice:
881      use continuous power-law function for partition of energy between lateral
882      melting/freezing and thinning/thickening ; old code using step function
883      still available with #undef THSICE_FRACEN_POWERLAW
884      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
885    o testreport: change AD testing : check against results/output_adm.txt
886      using same scripts as for forward test.
887    
888    checkpoint59g
889    o adjoint testing: in preparation for changing testreport:
890      - output format: cost and grad written on separated lines
891      - ad output results in directory "results" (instead of "results_ad")
892    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
893    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
894    o pkg/ecco: allow user defined cost function contributions
895    o testreport:
896      Allow to choose (per experiment) the list of tested output variables
897       and the main variable (used to issue a pass/FAIL ) ;
898      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
899      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
900      Also modify printing of summary:
901       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
902       b) echo the list of tested variables in the individual summary.txt of
903          each experiment.
904    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
905      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
906      (but still depend on the tile decompostion of the domain).
907    o pkg/seaice: change a discretization detail to make the B-grid code
908      "more symmetric". This change is likely to remove all "ridges/leads" that
909      where quasi-aligned with the grid in B-grid solutions. It may also be
910      the solution to the stress coupling issues with the B-grid.
911    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
912      remove .cvsignore from input dir. (since testreport no longer run here).
913    o pkg/thsice:
914     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
915     - fix reshaping of sea-ice just after advection:
916       melt all the ice only if ice-volume is too small.
917     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
918       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
919     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
920    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
921      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
922    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
923      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
924      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
925      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
926      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
927      -> update output.txt
928    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
929     this affects truncation error: -> update output.txt of exp:
930      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
931      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
932    
933    checkpoint59f
934    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
935    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
936      a bounded range (in forward mode)
937    o pkg/ecco, ctrl, autodiff and mom_common:
938     internal parameter controls, completements of implementations
939    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
940    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
941      (not seem any difference in testing results).
942    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
943       at face corners.
944    o pkg/generic_advdiff:
945     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
946      loop range indices for computing vertical advection tendency
947      and do the calculation in the interior only (no overlap) ;
948      for now, only implemented for SOM advection (to save CPU time).
949     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
950    o exch2 adjoint
951      First set of changes:
952      - add exch2 hand-written adjoint templates
953      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
954        This will require cleanup in pkg/autodiff/*.F
955        (changed routines currently kept separate in verif. code/)
956      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
957        that used to hide exch2 or cubed-sphere specific code
958        (commented via 'cph-exch2')
959    o pkg/seaice
960      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
961    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
962       output of global_ocean.cs32x15.thsice .
963    
964    checkpoint59e
965    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
966      for B-grid vector (not yet tested) and C-grid vector (<- only used
967      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
968    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
969      (#ifdef ALLOW_SALT_PLUME)
970    o gather_2d/scatter_2d: removed halo regions
971    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
972      scheme and the corresponding test case (under front_relax dir). For now,
973      only available with Skew-flux form and not yet tested in realistic set-up.
974      adjoint: store directives updated, but gradient checks deteriorated,
975      so maybe GM/Redi adjoint is now broken.
976    o seaice adjoint
977      * add AREA, HEFF, HSNOW as control variable
978        (should not change lab_sea results)
979      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
980    o pkg/seaice:
981      * added computation of saltFlux in seaice_growth;
982        For time being, sea ice salinity is assumed constant
983        contribution of snow flooding to freshening of sea ice is neglected.
984        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
985        defaults to 0.0 in order to maintain backward compatibility.
986        Typical values for SEAICE_salinity are 4 to 10 g/kg.
987      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
988      * added SEAICE_availHeatFrac, which specifies fraction of surface level
989        heat content used to melt or grow ice
990      * commented out cap of HICE: it helps keep ice thinner
991      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
992      * applied OBCS T/S mask to HEFFM sea ice mask
993    
994    checkpoint59d
995    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
996     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
997     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
998    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
999     and change default value of parameter "GM_Small_Number";
1000     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1001       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1002       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1003    o pkg/ecco: cost function when applying pkg/smooth to controls
1004    o pkg/ctrl: add forcingPrecond run time parameter
1005    o pkg/seaice:
1006     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1007     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1008       changes verification/lab_sea
1009     - rearrange implicit part of u-equation in LSR solver to make it easier to
1010       read, understand, and debug. This causes changes at the truncation level.
1011     - fix (serious) bug in the boundary conditions (sign error in the implicit
1012       part) of the LSR solver. Changes all LSR results.
1013     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1014       is initilized with small values - does not change lab_sea results.
1015     - added HsnowFile initialization capability
1016    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1017     initialization of pkg/smooth and application to control vector
1018    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1019    o dependencies: pkg/profiles requires pkg/cal
1020    o pkg/profiles:
1021     - added option ALLOW_PROFILES_GENERICGRID
1022         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1023         that interpolation information (grid points and coefficients) is provided
1024         within the netcdf input files.
1025         -> sample matlab scripts can be found in MITgcm_contrib/gael
1026         that allow you to prepare netcdf input files.
1027     - also modified: cleaner include statements, cleaner error print statements,
1028       cleaner stops when error, and more tests of the netcdf input files consistency.
1029    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1030    o pkg/seaice:
1031     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1032       requires a new routine: seaice_diagnostics_fill.F
1033     - make sure that seaice does not move if not forced (pressure replacement
1034       method, Hibler and Ip, 1995), changes results
1035     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1036     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1037       It is turned off by default (=-1.), because it changes the results.
1038     - make it possible to read AREA from a file, too.
1039    
1040    checkpoint59c
1041    o add S/R and diagnostics for oceanic mixed-layer depth
1042    o move GMRedi call after all vertical mixing schemes (including KPP)
1043    o pkg/thsice:
1044     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1045      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1046    o pkg/obcs:
1047     - bug fix for balance code
1048    o pkg/seaice:
1049      - allow values of SEAICE_elasticParm > 1
1050      - add new parameter SEAICE_evpTauRelax as an alternative
1051        to SEAICE_elasticParm
1052      - make lsr boundary conditions free slip (by default), changes result
1053      - add code for no slip boundary conditions for lsr
1054      - set minimum of zeta to zero (and not 4e8) (changes results)
1055      - add a cap on AREA after advecting AREA if seaice_growth is not called
1056    o change calculation of Visbeck K:
1057      - no longer depend on tapering scheme; instead, compute slope (limited
1058        by GM_maxSlope). this is equivalent to what was comuted before with
1059        clipping or linear tappering.
1060      - fix vertical averaging (wrong by 1/2 level)
1061      - leave the old version (but will not be maintained) within
1062        #ifdef OLD_VISBECK_CALC / #endif
1063      - update output of exp. ideal_2D_oce
1064    o change error catch in calc_r_star to improve vectorization
1065    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1066      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1067    o adjoint:
1068      Re-organized adjoint checkpointing according to Matt Mazloff
1069      (but with modifs/completions/cleanups)
1070      Storing is now bundled into large arrays to optimized I/O
1071      (and second step in cleanup of the_main_loop)
1072    
1073    checkpoint59b
1074    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1075      - export/import (between ocean & coupler) fields needed for ocean DIC.
1076    o pkg/seaice:
1077      - get rid of three more exchanges seaice_calc_viscosities (required
1078        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1079      - bug fix in seaice_ocean_stress (update of lab_sea required)
1080      - reduce loop boundaries to necessary minimum also in seaice_evp
1081      - go back to the old way of computing deltaC/Z as the adjoint likes that
1082        better
1083    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1084      passive tracer to an Age Tracer) + update output.txt
1085    o pkg/exf:
1086      - implement A-grid / C-grid selection for wind-stress input files.
1087      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1088      for now, in exf_bulk_largeyeager04.F only :
1089      - change implementation for case where windspeed + 2. components wind-stress
1090        are read-in. AND use rhoConstFresh to convert evap.
1091    o pkg/seaice:
1092      - use correct EXCH_UV for wind-forcing (on A-grid).
1093      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1094        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1095    o pkg/exf:
1096      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1097      EXF_INTERPOLATION:
1098      - merge global_with_exf/code version of exf_interp_read.F
1099        to the main code ;
1100      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1101        reading the file ; Important: This options needs to be defined to recover
1102        previous code.
1103        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1104      - no longer loose real*8 precision along the way when using exf_iprec=64.
1105    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1106      - change discretisation of evp-solver in order to avoid another exchange
1107        (changes lab_sea) and clean up a little
1108      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1109        help the adjoint (this also changes the results slightly)
1110      - add a few "_d 0" where they had been missing in seaice_evp.F
1111      - cleaning up: remove unused seaice_calc_rhs.F
1112    o pkg/exf: some cleaning-up:
1113      - change various "constants" into runtime parameters
1114      - cleaned-up Large&Yeager04 routine which should eventually
1115        replace exf_bulkformulae.F (changed names of S/R and CPP)
1116        and merged various ALLOW_ATM_WIND options
1117     only used with thsice pkg (in thsice_get_exf.F):
1118      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1119        which are used when useStabilityFct_overIce=TRUE (= the default)
1120      - change default values of ice & snow emissivity and scale downward LW
1121        by ice & snow emissivity.
1122    o pkg/thsice:
1123     fix few little problems, in thsice_calc_thickn.F:
1124      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1125      - melt only laterally if hIce < hThinIce (as the comments say)
1126      and in thsice_extend.F:
1127      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1128      - start to form ice as soon as the minimum ice-volume is reachable.
1129     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1130      and cpl_aim+ocn
1131    o pkg/kpp
1132     - move computation of surface related input fields to KPP into a new
1133       subroutine kpp_forcing_surf.F
1134     - remove wrong (within bi,bj loops) EXCH calls.
1135     - little cleaning (add argument myThid in last position, cvs header ...)
1136     - for now, fix conservation problem by exchanging KPPviscAz (may not
1137       be the best fix)
1138    o pkg/seaice
1139     - check for inconsistent evp parameter/cpp-flag combination
1140     - remove leftover errIO flat for obsolete name list error handling
1141    o OpenAD
1142     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1143    
1144    checkpoint59a
1145    o pkg/seaice: some parameter clarifications and a little bit of clean up
1146    o pkg/thsice: rename run-time parameters:
1147       himin       -> hIceMin
1148       himin0      -> hThinIce
1149       hihig       -> hThickIce
1150       i0          -> i0swFrac
1151       transCoef   -> bMeltCoef
1152       frac_energy -> fracMelting
1153      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1154       with default values (for now) that do not change the results.
1155      remove old version of thsice vars advection in pkg/seaice.
1156    o in FFIELDS.h:
1157      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1158      - make pLoad & sIceLoad always available (but still only used if
1159         ATMOSPHERIC_LOADING is #define).
1160    o pkg/kpp: replaced _KPP_RL with _RL
1161    o bug fixes for vertical diffusivity computations when both KPP and
1162        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1163        are no longer updating the vertical diffusivity array
1164        (passed as argument) but are (re-) setting those arrays.
1165    o pkg/seaice: fix bug in evp solver, while doing that
1166      - change (improve?) discretization of stress computations for both
1167        cgrid-lsr and evp solver
1168      - add a new routine to compute strain rates
1169      - the above changes lab_sea results
1170      - add no slip conditions for evp solver (off by default), lsr-version
1171        may follow
1172      - fix exchange for shear at Z-points (does not change lab_sea)
1173      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1174        (to force the user to pick a time step since there is not "safe" way
1175        of choosing it)
1176      - add principal stress diagnostics
1177      - rearrange fields for evp a little to avoid having to call a: too many
1178        exchanges and b: exchanges for stress trensor components which we do
1179        not have.
1180      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1181        of evp, complete rewrite for lsr case (latter is does not yet work
1182        in all cases)
1183    o pkg/kpp: add code to have mixing in shelf ice caverns
1184      - add myThid to all kpp routines (long overdue)
1185    
1186    checkpoint59
1187    o pkg/exf:
1188      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1189        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1190      - move exf header files from lower_case.h to UPPER_CASE.h ;
1191        add missing cvs Header & Name
1192      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1193      - add namelist param. selectStressGridPosition, exf_monFreq
1194      - retire many _CLIM routines, and remove data.exf_clim
1195        + params moved to data.exf
1196        + climsst, climsss now handled by exf_set_gen, i.e.
1197          climss?period=0 refers to constant field,
1198          climss?period=-12 to monthly forcing
1199      - split up namelists in data.exf
1200    o pkg/seaice:
1201      - remove seaice_exch and seaice_exch_uv
1202      - remove superfluous exchange of theta
1203      - add myThid to seaice_budget_ocean/ice
1204      - add new interface for atmospheric wind forcing (C-grid only)
1205        + new routine
1206        + two new field (taux, tauy for stress over ice)
1207        + removed one global field (DAIRN) for C-grid case only
1208    o pkg/thsise
1209      - 2nd set of modifs for thsice adjoint in conjunction with exf
1210    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1211    
1212    checkpoint58y_post
1213    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1214      vertical diffusivity, similar to that in MOM4; turned on using
1215      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1216      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1217    o Added capability for 3D specification of background vertical diffusion
1218      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1219      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1220      "data" file that contains the 3D vertical diffusivity coefficients.
1221    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1222      - add code within pkg thsice to advect & diffuse sea-ice fields
1223      similar to (and will replace) what has been added in  seaice_advdiff.F,
1224      but: - conserving Mass, Heat & Salt.
1225           - better when using non-linear advection scheme (not yet fully tested)
1226           - can also be used in atmospheric set-up (for now, only the diffusion).
1227    
1228    checkpoint58x_post
1229    o IO option for global-file compact format:
1230      - add options when generating topology (utils/exch2/matlab-topology-generator)
1231      - add I/O capability (pkg/mdsio).
1232      - adapt utils/matlab/rdmds.m to read this format.
1233      for now long-line format not yet supported by pkg/mdsio (& exch2).
1234    o shelfice: add a few diagnostics
1235    
1236    checkpoint58w_post
1237    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1238      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1239      (and replace horiVertRatio in NH code).
1240      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1241                         and tutorial_plume_on_slope (sensitive to truncation)
1242    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1243      directly to drive seaice model (C-grid only)
1244    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1245     - reintroduce computation of wind from stress,
1246     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1247       mass points to avoid tau = 0
1248     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1249    o rdmnc.m: make it work with "global" files created with gluemnc
1250    o rdmnc.m : some improvements in dealing with singleton dimension
1251      (tested on all testreport mnc output files).
1252    o genmake2: disable pkg/profiles if netcdf test fails.
1253    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1254    o move call to cal_readparms up to make calendar parameters/variable available
1255      to all packages
1256    
1257    checkpoint58v_post
1258    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1259      useDynP_inEos_Zc tested.
1260    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1261    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1262      and portions thereof.  See read_cs.txt for description and examples.
1263    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1264      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1265      following the great-circle arc between those 2 points.
1266    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1267      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1268    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1269     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1270     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1271     - still needs work (not working with some options ; efficiency to improve)
1272       and serious testing.
1273     - use this scheme for temperature & salinity in 2 advection test exp.:
1274       advect_xy & advect_xz, respectively.
1275    
1276    checkpoint58u_post
1277    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1278    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1279    o testreport: add option "-skipdir" to skip some test.
1280    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1281      momentum calculation.
1282    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1283    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1284      remove checkpoint.F and the_correction_step.F (no longer used);
1285      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1286    o add option (linFSConserveTr) to correct for tracer source/sink due to
1287      Linear Free surface
1288    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1289    o pkg/thsice: fix reading mnc-pickups
1290    
1291    checkpoint58t_post
1292    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1293    o pkg/mdsio:
1294     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1295       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1296       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1297     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1298     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1299       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1300     - new S/R (to replace MDSWRITEMETA), which allows to write more
1301       informations (variable names, time ...) to meta files.
1302     - modify rdmds.m to give back the meta file content.
1303    o pkg/diagnostics: change vertical interpolation to be safer, and more
1304       flexible (define p-levels to interpolate to in data.diagnostics);
1305      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1306       diagnostic pointer.
1307    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1308    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1309    o fix multi-category seaice:
1310     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1311       SEAICE_MULTICATEGORY
1312     - fix short wave heat flux
1313    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1314       and allow to use EVP solver. Change forward lab_sea: test both EVP
1315       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1316    o Initial check-in of lab_sea adjoint
1317      (very similar to natl_box_adjoint/code_seaice)
1318      * used C-grid and EVP solver
1319      * used KPP, GM/Redi
1320      * uses inAdExact=.TRUE.
1321      * gradient checks fail for both ADM and TLM
1322        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1323        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1324        issue is related to forward mismatch between g77 an ifort
1325    o pkg/seaice: overhaul of thermodynamics
1326     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1327     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1328     - move a few global fields out of SEAICE.h into seaice_growth.F and
1329       make them 2D (FICE/QNETO/ ...)
1330     - remove FO (it is the same as QNETO)
1331     - introduce a few local fields to avoid modifying external fields such
1332       as atemp, etc.
1333    
1334    checkpoint58s_post
1335    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1336      changed exf_set_gen.F so that
1337        genperiod=0 means input file is one time-constant field and
1338        genperiod=-12 means input file contains 12 monthly means
1339    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1340      this affects truncation error ; generate new output file for exp. which
1341      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1342        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1343        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1344        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1345        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1346        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1347    o start implementation of deep-atmosphere and anelastic formulation
1348    o verification: remove 2nd copy of input files and use script "prepare_run"
1349      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1350    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1351    o profiles: fix for multithreaded case
1352    
1353    o diagnostics: rename few diags:
1354      s/'PRESSURE'/'RCENTER '/g
1355      s/'TICE    '/'oceFreez'/g
1356      s/'TAUX    '/'oceTAUX '/g
1357      s/'TAUY    '/'oceTAUY '/g
1358      s/'SWFLUX  '/'oceQsw  '/g
1359      s/DIFx/DFxE/g
1360      s/DIFy/DFyE/g
1361      and add few ocean-forcing diagnostics:
1362      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1363    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1364      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1365      as actual snow thickness.  It now refers everywhere to effective snow
1366      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1367    
1368    checkpoint58r_post
1369    o modifications to pkg/seaice/growth.F, which change results of
1370      lab_sea experiment: fixes pertain to melting snow over open water, to
1371      masking EVAP under sea ice, and to using the correct AREA variable for
1372      computations of EVAP, PRECIP, HSNOW, and GHEFF
1373    o add ability to read bathy, salt, and theta using MNC (off by def)
1374    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1375      both are turned off by default and do no change any results
1376    o seaice advection with pkg/thsice: a step toward the use of non-linear
1377      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1378    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1379      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1380      in natl_box (affects results @ truncation level: update output.txt)
1381    o multi-threading and IO:
1382      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1383      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1384        (needed to work with SingleCpuIO): tested in all verif. exp.
1385    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1386      affects the results (but none of the verification test uses this scheme).
1387    o Adding some pkg/diagnostics capability to pkg/seaice
1388      (will certainly be subject to changes)
1389    o ctrl: adding new control variables:
1390      lwflux, lwdown, evap, snowprecip, apressure, runoff
1391    
1392    checkpoint58q_post
1393    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1394      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1395      high_res_cube configuration by 4% on Columbia.
1396    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1397      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1398      dynamical allocation (seems to work in multi-threaded).
1399    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1400      single CPU io) so that TAF does not have to see EESUPPORT.h
1401    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1402    
1403    checkpoint58p_post
1404    o obcs: stop if obcs is used with useCDscheme = .true.
1405    o shelfice:
1406     - fix a sign error so that no slip at shelfice interface works
1407     - remove stop for combination non-hydrostatic code and shelfice. That does
1408       not mean, that the results are correct, but at least they are numerically
1409       stable
1410    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1411    o added adjoint exch routined for all exch*3d* routines
1412      and updated flow directives
1413    
1414    checkpoint58o_post
1415    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1416      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1417    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1418      and clean-up reading/writing of pickup files.
1419    o fix local version of read/write pickup (NH part) in rotating_tank/code
1420    o simplify EXCH interface:
1421     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1422     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1423    o added the regrid package
1424    o shelfice:
1425     - add a simple boundary layer scheme to reduce noise
1426     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1427    
1428    checkpoint58n_post
1429    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1430       local variable (not in common block).
1431    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1432      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1433      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1434        to work with SingleCpuIO.
1435    o add "_d 0" to real constant of pkg/cfc subroutines ;
1436       update exp. cfc_exemple & tutorial_cfc_offline output files.
1437    o multi-threading and IO:
1438      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1439        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1440      - barrier before and after reading.
1441      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1442      - avoid using MDS_WRITELOCAL for LAND pkg output.
1443      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1444        common-block variables ; Allows multi-threading with master-thread IO.
1445    o change default MAX_NO_THREADS from 32 to 4 ;
1446      and stop cleanly when MAX_NO_THREADS is too small.
1447    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1448    
1449    checkpoint58m_post
1450    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1451       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1452    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1453       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1454       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1455    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1456        add MITgcm_tutorials (= code + all the tutorials)
1457    o ecco, option to compute cost for total ssh (mean+anom)
1458    o consistent with addition of ptracer and ssh in pkg/profiles
1459    o profiles: adding ptracer and ssh
1460    o testreport: change multi-test output-file name
1461      (from output.txt.{name} to output.{name}.txt)
1462    o profiles: now ok for mutli-tiles case
1463    o seaice: add 4 parameters for different advection schemes for area,
1464      (effective) seaice thickness, enthalphy, and snow height. Their default
1465      is the standard parameter SEAICEadvScheme
1466    o calc_gw:
1467     - add cosFacU in zonal viscous flux (harmonic.visc.).
1468     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1469       of tutorial_plume_on_slope.
1470    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1471    o calc_gw: true flux-form, account for horizontal grid spacing.
1472      update rotating_tank results, but not plume_on_slope (affected at
1473      truncation level, 11 digits).
1474    
1475    checkpoint58l_post
1476    o calc_gw:
1477     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1478     - remove side-drag for now (need to fix it); update plume_on_slope results.
1479     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1480    o commit code to make SST/SSS weights spatially variable
1481      (based on either variable in-situ or variable initial T/S weights)
1482    o pkg/ecco:
1483      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1484        now based on horizontally varying weights wthetaLev, wsaltLev
1485      * cost_averagesflags now returns year indices in addition to day, month
1486      * sflux balance is performed on annual basis
1487        (sflxumm, sfluxmm2, bal_sfluxmm)
1488      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1489        including separate counting and multipliers
1490    o pkg/rbcs
1491      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1492    
1493    checkpoint58k_post
1494    o testreport:
1495     - always build in dir. "build" (if not there, mkdir build instead of building
1496       & running in input)
1497     - run in dir run (if it exists), in build otherwise.
1498     - call prepare_run (if input/prepare_run exists)
1499     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1500    o pkg/exf modifications to interpolation and rotation routines for more
1501       reasonable treatment of North Pole singularity: for tracers North Pole
1502       value is set to northernmost zonal-mean value, for zonal velocity it is
1503       set to zero, and for meridional velocity it is set to northernmost value.
1504    o pkg/exf/exf_check_range.F
1505     - add tile index to diagnostics and move stop statement to the very
1506       end of the routine.
1507    o pkg/diagnostics: (diagnostics_main_init.F)
1508      define title of isomorphic variables according to the current config.
1509    o pkg/thsice with pkg/seaice dynamics:
1510    - fix domain of computation (interior only, required for exf) and do exchanges
1511    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1512    o towards a standard way of dealing with multi-threading in MONITOR
1513      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1514    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1515       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1516    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1517    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1518    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1519       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1520    o tracer advection:
1521     - clean-up and simplify calc_common_factors.F
1522     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1523       advection subroutine (but still not used within DST advection S/R)
1524    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1525    
1526    checkpoint58j_post
1527    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1528      from file (collects calls previously in FORWARD_STEP)
1529    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1530    o adjoint store dir. adjusted accordingly
1531    o genmake2
1532      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1533    
1534    checkpoint58i_post
1535    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1536      on wind stress (SEAICEstressFactor defaults to 1.)
1537    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1538      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1539    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1540      on CS-grid: no longer loosing mass.
1541    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1542    o pkg/ggl90: fix sloppy output and fix a bug
1543    o pkg/seaice: added SEAICEuseEVPpickup parameter
1544      - Set to false in order to start EVP solver with
1545        non-EVP pickup files when using SEAICEuseEVP
1546      - fix sign error in diffusion in seaice_calc_rhs
1547    
1548    checkpoint58h_post
1549    * Modifications for bottom topography control
1550      o replace hFacC by _hFacC at various places
1551      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1552      o add non-self-adjoint cg2d_nsa
1553      o update autodiff support routines
1554      o re-initialise hfac after ctrl_depth_ini
1555      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1556    * Adding verification for 5x5 box (4-layer) bottom topography control
1557    
1558    checkpoint58g_post
1559    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1560       used for mean seasonal cycle, mean diurnal cycle); add an example
1561       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1562    o pkg/ggl90:
1563      - add parameter (minimum surface kinetic energy)
1564      - fix bug (avoiding division by zero)
1565    o couple pkg/thsice to pkg/seaice:
1566      - modify advection in seaice to accomodate new scalar fields to be advected
1567      - only muliDimAdection scheme work with seaice/thsice
1568      - mapping of thsice-variables to seaice-variables, back and forth
1569      - does not break the verification experiments, but does not give the
1570        desired results either
1571    o pkg/seaice
1572      - make (default) second order advection a bit less confusing?
1573    
1574    checkpoint58f_post
1575    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1576      to pkg/seaice):
1577      - new routines thsice_map_exf and thsice_get_exf provide the interface
1578      - add an additional formal parameter to thsice_solve4temp
1579    o pkg/exf:
1580      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1581      - correct Stefan-Boltzmann constant
1582      - new parameter for longwave surface emittance
1583      - separate some stuff from exf_bulkformulae into new routines  
1584        exf_radiation, exf_wind
1585      - add new parameters and constants: longwave emissivity for ocean, ice
1586        and snow, evaporation parameters over ice
1587      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1588        either wind from stress or stress from wind
1589    o pkg/thSIce:
1590    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1591    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1592       and THSICE_CALC_THICKN
1593    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1594    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1595      to make debugging easier.
1596    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1597    o pkg/bulk_force:
1598      - clean-up comments and parameters ;
1599      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1600    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1601      generate new output for test-experiment: aim.5l_cs.thSI
1602    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1603      testreport accordingly
1604    
1605    checkpoint58e_post
1606    o SEAICE_CGRID adjoint done
1607    o R_STAR adjoint implemented.
1608      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1609      * need to sort out init. of h0facc, etc.
1610    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1611      to be able to use it in pure forward.
1612    
1613    checkpoint58d_post
1614    o upgrade simple test-experiment to tutorial example:
1615     step.1: duplicate the experiment and (step.2) will remove the old copy.
1616      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1617      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1618      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1619      tutorial_global_oce_biogeo    <- copy of dic_example
1620      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1621      tutorial_plume_on_slope       <- copy of plume_on_slope
1622      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1623      tutorial_global_oce_optim     <- empty for now (David ?)
1624      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1625     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1626    o correct a sign problem in cost_scat.F
1627    o obcs and ptracers: fix boundary conditions for advections schemes
1628      with larger stencil
1629    o thsice adjoint: start
1630    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1631      completeness
1632    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1633      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1634    o ptracers adjoint:
1635      * avoid extensive recomputatations
1636      * fix missing re-init. of gptr (missed by TAF)
1637    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1638      me to turn off the excessive output to STDOUT that this package produces
1639    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1640      and add those terms in Vector-Invariant formulation.
1641    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1642      if the control period (xx_hfluxperiod etc) is 0
1643    o in profiles pkg, clean routines and fix details
1644    o in ecco pkg, reading ssh data:
1645      fix problem in case the model does not start at iter0=0
1646    o fix mnc-pickup/restart for ptracers
1647    o new package prifiles:
1648      code to compute profile-based cost by Gael Forget
1649      (modifs in ecco, ctrl, autodiff)
1650    o Benign bug fix in initialization (spotted by M. Mazloff) of
1651      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1652    
1653    checkpoint58c_post
1654    o adjoint: finish NLFS adjoint and provide reference output in
1655      verification/global_ocean.90x40x15/results_ad_nlfs
1656    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1657      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1658      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1659      with SEAICE_CGRID defined.
1660    o move calendarDumps from "data" to "data.cal" and clean-up the code
1661      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1662    o add useEXF & useCAL flags (for now, set in hard-coded way)
1663    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1664      (were missing in NH mode, and wrong in quasihydrostatic mode).
1665      waiting for Chris updated version of calc_gw to add those CALLs.
1666    o fix bug in quasihydrostatic S/R ;
1667      add a test for this option: global_ocean.90x40x15.qshyd
1668    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1669      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1670    o add on/off flag useOffLine for package OFFLINE
1671    o seaice:
1672      - modify advection so that it works also on the C-grid
1673      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1674        problem in multi-tile runs with C-grid
1675      - add flags for clipping ice velocities and/or masking solver forcing
1676      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1677        C-grid solver
1678      - added a few comments to seaice_diffusion.F
1679      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1680        are now exclusive)
1681      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1682        required re-ordering the code a little:
1683       + make DAIRN global variable (defined in SEAICE)
1684       + move computation of the viscosities eta and zeta into a new separate
1685         routine (because I need to recompute them in seaice_ocean_stress.F)
1686    
1687    checkpoint58b_post
1688    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1689      update output.txt of exp. aim.5l_cs.thSI
1690    o various mnc cleanups and improvements:
1691      + shrink lookup tables by factor of ~4
1692      + better error reporting when running out of lookup space
1693      + able to handle longer path/file names (up to 500 chars)
1694    o adjoint:
1695      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1696      - TBD: "hidden" mom_vecinv recomp. in dynamics
1697    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1698     (allow to differentiate between forcing components using new integer flags:
1699      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1700     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1701    o ecco
1702      - enable trend removal from SSH anomaly obs.
1703    o adjoint
1704      - a fix for PmEpR when #undef EXACT_CONSERV
1705      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1706      - try to fix "hidden" recomp. in forward_step for NLFS
1707        (NLFS seems broken sometimes after I checked it in)
1708    o seaice:
1709     - add c-grid version of the dynamic solver:
1710       + three new routines that are the c-grid substitute lsr, dynsolver
1711         and ostres
1712       + put a few fields that were local to dynsolver into global common
1713         blocks, so that I can move the computation of stresses etc into
1714         seaice_lsr (saves coding but may break the adjoint).
1715     - replace more hardwired parameters by runtime parameters
1716     - add ice masks that mask the rhs of the implicit solvers where there
1717       is no ice (commented out in seaice_dynsolver, because i am not sure
1718       if this works properly), eventually this should replace the clipping
1719       of ice velocities in seaice_dynsolver to +/-40cm/s.
1720    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1721      include it only where its needed
1722    o move balancing of fluxes before the call of external_forcing_surf
1723    o seaice:
1724      - correct units of turning angles (now they are really in degrees)
1725      - move computation of GWATX/Y out of main routine into dynsolver
1726      - initialize GWATX/Y in seaice_init
1727    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1728      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1729    o seaice: add runtime flags for turning angles (default to zero)
1730    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1731      and trend from exf forcing and ctrl control adjustments
1732    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1733      (since checkpoint57x_post)
1734    o change the default rotation period to 86164.s = the Earth rotation
1735    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1736      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1737    o seaice advection: add code for choosing between the default (2nd order
1738      central differences) and multiDim advection schemes provided by
1739      pkg/generic_advdiff
1740    o seaice:
1741      - removed all references to SEAICE_GRID.h fields from
1742        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1743        (cubed-sphere configuration will change a little)
1744      - grid computations in seaice_init are obsolete now.
1745      - cleaned up code a little so that is easier to read (hopefully).
1746      - added new (better?) discretizations of default advection and diffusion
1747        (turn on with SEAICEuseFluxForm)
1748      - replace 1 in 3d global fields by kSurface in growth.F
1749      
1750    checkpoint58a_post
1751    o seaice:
1752      - bug fix in advect.F
1753    o shelfice:
1754      - separate shelfice load anomaly from pload (breaks with time
1755        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1756        Its default is 0., but it may be computed more cleverly from (unknown)
1757        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1758        done offline. A good approximation of the pressure load anomaly is
1759        necessary to avoid large initial adjustment processes underneath
1760        deep-reaching shelfice.
1761      - small fix in ISOMIP shelfice_thermodynamics
1762      - add more sophisticated thermodynamics of Hellmer (1989), this is
1763        now the default
1764      - give a few constants more intuitive names
1765    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1766      if bulk formulae are used in long integration (especially EmPmR). Turn
1767      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1768      if balancePrintMean, the imbalance that is substracted is printed to
1769      STDOUT.
1770    o fix bug (typo) in obcs_apply_eta.F
1771    o add a new package shelfice which enables us to model the circulation
1772      underneath shelf-ice with draughts of hundreds of meters.
1773     - works
1774     - to do: + include improved thermodynamics
1775              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1776                instead of new field kTopC
1777              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1778                instead of new field R_shelfIce and new code in ini_depth.F
1779                and ini_mask_etc.F?
1780              + adjust vertical mixing schemes?
1781    o seaice pkg:
1782     - add a cpp-flag to include a simple formula for a salinity dependent
1783       freezing point of sea water at the surface
1784     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1785       meridional stresses are now different (and hopefully correct)
1786    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1787       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1788       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1789    o pkg/diagnostics: add options and parameters for regional-statistics
1790       diagnostics ; define regions by reading a region-mask from a file
1791       (might add other options later)
1792    o pkg/bulk_force:
1793     - add option and parameters to use AIM surface-flux formulae.
1794     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1795       others forcing fields (defined in PARM05, parameter file "data") are loaded
1796       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1797     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1798     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1799     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1800       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1801     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1802    
1803    checkpoint58
1804    o add "--embed-source" option to genmake2 which, when the supporting
1805      tools can be compiled (as determined by genmake2) will turn on the
1806      embed_files package which then embeds the entire MITgcm source code
1807      (*.[fFhc] + Makefile) used for the build within the executable
1808      - requested by CNH but off by default
1809      - adds a paltry <9MB to the mitgcmuv executable in most cases
1810      - only writes the output when useEMBEDSRC in eedata is true
1811    o clean up 3-dim. relaxation codes:
1812      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1813      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1814      * Thanks to Tom Haine for testing!
1815    
1816    checkpoint57z_post
1817    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1818      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1819    o fix the pickup behavior for obcs in combination with ptracers
1820    o fix a bug in ptracers_external_fields_load
1821    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1822      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1823    o transfered surface NH pressure to eta field (if exactConserv).
1824    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1825         and update lab_sea output.txt file.
1826    o completing 3-dim. relaxation code: additional term
1827         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1828      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1829      * At compile time, in "EXF_OPTIONS.h" set
1830          #define  ALLOW_CLIMTEMP_RELAXATION
1831          #define  ALLOW_CLIMSALT_RELAXATION
1832      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1833          tauThetaClimRelax3Dim = 15552000.0,
1834          tauSaltClimRelax3Dim  = 15552000.0,
1835      * 3 cases:
1836          1) Use a constant-in-time 3-dim. field
1837          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1838          3) Real-time relax. to time-evolving prescribed field
1839    o Adding Laplacian-type smoothness constraint on
1840      initial and boundary (forcing) controls (ic, bc)
1841      * enable at compile-time via
1842        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1843      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1844      * Absolute scale somewhat unclear so far
1845      * no area weighting was included since no other cost term does so far
1846    
1847    checkpoint57y_post
1848    First step for a NLFS adjoint
1849    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1850    o new init. routines for calc_r_star, calc_surf_dr
1851    o still need to deal with ini_masks_etc
1852    o testreport seemed happy
1853    checkpoint57y_pre
1854    
1855    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1856    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1857    o add new offset feature to offline pkg (plus minor cleanup)
1858    o cfc fixes for final year of integration
1859    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1860      be in GCHEM_OPTIONS).
1861    
1862    checkpoint57x_post
1863    o fix testreport Pb in multiple test experiment.
1864    o cleanup our namelist syntax in verification:
1865      - make it more F95 standards compliant (some work still needed)
1866      - allows the vast majority of our tests to work with gfortran
1867    o Non-Hydrostatic:
1868     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1869     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1870    o Allow to apply AB on T,S rather than on AB(gT,gS):
1871     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1872     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1873       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1874     - need a "clever" read_pickup to restart from the other AB formulation
1875    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1876    o remove some unused variables (reduces number of compiler warnings)
1877    o adjoint
1878      * Disable useVariableViscosity for adjoint for time being
1879        (there are a number of extensive recomputations)
1880      * Initialize certain variables needed for adjoint
1881    
1882    checkpoint57w_post
1883    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1884                 fix the singleCpuIO RS version of MDSWRITEFIELD
1885       and add a WARNING if using globalFiles=T with multi-processors.
1886    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1887      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1888    o tracer advection scheme:
1889      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1890       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1891       was not very convenient).
1892      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1893       (further tests needed for the implicit DST & Flux-Limiter schemes).
1894    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1895      and sRef for convenience, handy, when you want to initialize
1896      ptracers in a large domain with a constant non-zero value. Also,
1897      untangle ptracers_init.F a little.
1898    
1899    checkpoint57v_post
1900    o change dome exp. to use variable viscosity in side-drag terms.
1901    o remove all the files from the cfc_offline test since they are now
1902      incorporated into tutorial_cfc_offline which has been producing
1903      identical results for a few days of testing
1904    o add new parameter: sideDragFactor to enable half-slip-side BC
1905      and change side-drag S/R to use viscosity from mom_calc_visc
1906      (can switch back by setting sideDragFactor=0.); affects results at
1907      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1908       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1909    o vorticity & strain are now computed without masking, to account for
1910      no-slip-side BC in variable viscosity calculation ; mask is applied
1911      anyway later on, before computing advection/coriolis terms.
1912    o modify exp4 to test new obcs support for reading from external files
1913      and for passive tracers
1914    o fix behavior of ptracers_monitor when monitor output is written to a
1915      netcdf-file; still not independent of monitor.F (writes in the same
1916      file).
1917    o change default value of tRef (put a uniform, meaningful value for ocean
1918      & atmos) and initialize sRef (was missing, as Martin mentioned).
1919    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1920      to be proportional to enstrophy dissipation length.  Thus,
1921       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1922      This is now consistent with Smagorinsky and with the manual.
1923    
1924    checkpoint57u_post
1925    o OBCS and PTRACERS: add open boundary support for passive tracers
1926      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1927        OB-values from file; this is not different from the way theta and salinity
1928        are treated
1929      - however, Orlanski-radiation conditions are not supported, and the model
1930        will stop if you use pTracers and Orlanski at the same time.
1931      - beefed up the rountine obcs_external_fields_load: now only those open
1932        boundary values are overwritten with values from files for which there
1933        are really files, otherwise the OB-fields remain untouched. This makes
1934        it possible to use different OBs at different ends of the domain (as
1935        with EXF)
1936    o reduce number of exch calls in shap_filt (s2).
1937    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1938      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1939    
1940    checkpoint57t_post
1941    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1942    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1943      same truncation, independent of the face number: affects affects several
1944      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1945    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1946      note that biharmonic viscosity + no-slip was not tested in any experiment.
1947    o fix bug in non-linear free-surf side-drag ; generate new output for
1948      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1949    o make mnc honor the writeBinaryPrec flag for most kinds of output
1950    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1951    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1952      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1953    o add brackets in multi-terms sum to get same truncation, independent of
1954      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1955      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1956    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1957      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1958      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1959      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1960      Suggested values of viscosity parameters found in mom_calc_visc.
1961      Many new viscosity diagnostics available.
1962    
1963    checkpoint57s_post
1964    o Add clearing-house for viscosity calculations, mom_calc_visc and
1965      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1966      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1967      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1968      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1969      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1970      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1971      ViscAhStrain and viscAhTension are now retired.
1972    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1973    o In response to JMC's bug report, genmake2 now ignores any soft-links
1974      that it finds in the *current* directory when searching for files.
1975      Soft-links found in any other source directories will still work as
1976      they did before.
1977    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1978      a C routine to unlimit the stack size
1979    o mnc-ify pkg/aim snapshot vars
1980    o mnc-ify pkg/land as requested by Daniel
1981    o various changes to mnc including:
1982      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1983      - output can now be grouped so that all files within a group
1984          change the ITER portion of their names in lock-step together
1985      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1986          and works with both EXCH1 and EXCH2 (but needs more testing)
1987      - writing works for all verification test cases w/ g77 on Linux
1988    
1989    checkpoint57r_post
1990    o make MNC variable initialization happen earlier
1991    o add diagnostics for (almost) each term of the momentum Eq.
1992    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1993    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1994    o remove MINIMAL_TAVE_OUTPUT option ;
1995      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1996    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1997      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1998    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1999    o add time-dependent SST, SSS control
2000    o cost terms in ecco/ modularized (new cost_generic.F)
2001    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2002    o new infrastructure for seaice model vs. obs misfits in seaice/
2003      * driver from the_main_loop.F is seaice_cost_driver.F
2004      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2005      * gradient check in Exp. 6a of natl_box_adjoint/
2006    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2007      (see README file)
2008    
2009    checkpoint57q_post
2010    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2011    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2012      - bug was reported by Jean-Michel and Ian Fenty
2013    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2014      update exp. cpl_aim+ocn output.
2015    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2016      Needed for high-res. runs with large global files
2017      to be able to limit tapelev size
2018    o Changed some tests for adjoint:
2019      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2020      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2021      * global_ocean.90x40x15/ back to default 3-level checkpointing
2022    o Modifications to enable scripted COMMON to MODULE conversion
2023      * verification/OpenAD/code/ has necessary scripts and description;
2024      * converts, compiles and runs successfully;
2025    
2026    checkpoint57p_post
2027    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2028    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2029      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2030    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2031    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2032      (was already the case for dissipation with mom_vecinv,
2033       and also the case for grad.PhiHyd when staggered-timeStep)
2034      This will allow to put dissipation out-off the AB time-stepping.
2035     Unfortunately, affects truncation error. Update output of exp. that "fails"
2036      (cg2d matching number) and leave the others for later: front_relax(10),
2037      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2038      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2039    
2040    checkpoint57o_post
2041    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2042      (2) its ready to be documented during the 20050801 DocFest
2043    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2044      for ideal_2D_oce and lab_sea on linux_ia32_g77
2045    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2046      in global1x1_tot/code_seaice_adj to access indices 32, 33
2047      (worth another tag)
2048    
2049    checkpoint57n_post
2050    o adding precip control xx_precip 32
2051    o adding swflux control xx_swflux 33
2052    o Replacing 10 forcing penalty cost routines by 1 generic.
2053    o Implementing partitioning in time-mean and variable adjustment
2054      for atmos. state.
2055    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2056    o in natl_box_adjoint:
2057      * updated exp 1 to 10
2058        (but does not have time-mean vs. variable split results yet)
2059    o updated global1x1/*_seaice_adj/
2060      to incorporate latest changes
2061    o enable useSingleCpuIO for mdsio vector routines
2062      (applies in particular to tapelev I/O)
2063    o removed inefficient K-loop in all active_file*control*.F
2064    
2065    checkpoint57m_post
2066    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2067      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2068    o pkg/exch2: filling of face-corner halo regions is optional
2069      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2070    
2071    checkpoint57l_post
2072     tag before updating tutorials (pre-release-2)
2073    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2074       for output and interpolation of input fields onto model grid)
2075    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2076       Affects results of exp. rotating_tank ; update output.txt.
2077    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2078          and taking the square quantity and/or using a fraction-weight field.
2079    o fix aim_diagnostics_init.F mate numbers.
2080    o add mnc output capability to diagnostics/diagstat and update
2081      our cvsignore files for the ACSII output generated
2082    
2083    checkpoint57k_post
2084    o lab_sea now uses diagnostics package and provides a suite of
2085      new EXF diagnostics output.
2086    
2087    checkpoint57j_post
2088    o exf
2089      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2090        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2091        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2092      * extended diagnostics output
2093        - now includes all EXF variables
2094        - hs, hl moved to common block
2095        - separate S/R for diagnostics, called after ctrl vector is added
2096        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2097        - EXFqnet contains true Qnet (i.e. includes qsw)
2098      * updated verif. lab_sea, global_with_exf
2099      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2100        to ensure that diagnostics sees a true EXFqnet
2101    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2102    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2103      several times with different frequencies.
2104    o mnc-ify the thsice package as requested by Daniel Enderton
2105      - the monitor--MNC output needs work
2106      - many attributes need to be added (most are currently blank)
2107    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2108      - many attributes need to be added (most are currently blank)
2109    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2110    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2111    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2112      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2113         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2114    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2115     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2116    
2117    checkpoint57i_post
2118    o Diagnostics package was changed: diagnostic allocation is now deactivated
2119      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2120    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2121      add 1rst Order upwind vertical Shear.
2122    o add a quick fix for A/B checkpointing in OFFLINE mode
2123    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2124      end-run around the C/Fortran linking horror in eesup/src/timers.F
2125    o added pkg/runclock: allows user to terminate run based on wall clock
2126    o added non-hydrostatic scaling parameter: nh_am2
2127    o pkg/my82: futile attempt to make results compiler-independent by adding
2128      some "_d 0", etc. no effect.
2129    o for mnc output, fill the 'T' coordinate var with myTime and create a
2130      separate 'iter' variable for iteration count
2131    o pkg/diagnostics:
2132      add new capability: output of Global/Regional & per-level statistics ;
2133      tested against monitor output (including land & thSIce) on various exp.
2134    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2135    
2136    checkpoint57h_done
2137      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2138      data.diagnostics, data.gchem, data.ptracers) is done.
2139    
2140    o pkg/diagnostics: prepare for Global/Regional statistics.
2141      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2142    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2143      and rename it: DIFFERENT_MULTIPLE
2144    
2145    checkpoint57h_post
2146    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2147    o pkg/diagnostics: change output frequency, now in seconds (instead
2148      of Nb of iterations). This requires to change data.diagnostics.
2149    checkpoint57h_pre
2150    
2151    o in mnc, let the user create the output dir if both mnc_outdir_date
2152      and mnc_outdir_num are false
2153    o add fflags() to pkg/diagnostics which allows one to specify, on a
2154      per-file basis, the file precision [default behavior is unchanged]
2155    o added diagnostics to pkg/kpp, including computation of mixed layer
2156      depth based on a temperature/density criterion
2157    o updated verification/natl_box to test the new pkg/kpp diagnostics
2158    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2159    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2160    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2161      not mnc -- this mistake was found by JMC and is now corrected
2162    
2163    checkpoint57g_post
2164    o add Adams-Bashforth 3rd Order time stepping:
2165      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2166      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2167    checkpoint57g_pre
2168    
2169    o make lambda[Theta,Salt]ClimRelax spatially varying
2170      (default remains spatially uniform constant based on tau)
2171    o added new control variables
2172      * init. uVel, vVel, etanN
2173      * lambda[Theta,Salt]ClimRelax
2174    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2175      (suggested by G. Forget)
2176    
2177    checkpoint57f_post
2178    o add parameter "baseTime" = model base time = time at iteration zero
2179      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2180      account for baseTime shift
2181    o move Coriolis arrays from PARAMS.h to GRID.h
2182    checkpoint57f_pre
2183    
2184    o mnc-ifying the seaice package
2185    o introduced an alternative length scale calculation for use in the limiting
2186      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2187    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2188    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2189      as well as grad(vort3).  Made it compatible with both approximate form
2190      for the cubed sphere and full form of these gradients.  Added flag
2191      useFullLeith to select between approximate and full form.  
2192    o add "d0" in getcon.F to reduce differences between compilers/platforms
2193      update output.txt of exp. fizhi-gridalt-hs
2194    o change port_rand funtion to allow to set the seed.
2195    o fix obscure MNC bug involving conversion between reals and integers
2196      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2197        new version is now more standards-compliant
2198    o adjoint-related modifications
2199      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2200      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2201      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2202    
2203    checkpoint57e_post
2204    o Adding eddy stress controls a la Ferreira et al.
2205    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2206    
2207    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2208      update output.txt of exp. fizhi-gridalt-hs
2209    o add more "Z" dimensions and associated coordinate vars to MNC
2210    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2211    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2212      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2213      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2214      months and years.  Requires pkg/cal.
2215    o diagnostics: add pickup functionality
2216      - off by default for backwards compatibility
2217      - current version only uses MDSIO -- MNC will be added
2218    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2219    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2220    
2221    checkpoint57d_post
2222    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2223    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2224      output from the diagnostics package
2225    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2226    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2227      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2228    o add coordinate variables to the MNC output from the diagnostics package
2229    o change MNC-flags default value: true when useMNC=TRUE
2230    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2231      the ability (off by default) to read the grid information using MNC
2232    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2233    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2234    o do snap-shot diagnostics at the middle of the time-interval (instead of
2235      at the end).
2236    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2237      new test for AIM with thSIce + slab-ocean
2238    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2239    o move state variable diagnostics to the beginning of the time step ;
2240      (note: still needs some work specially for snap-shot diagnostics)
2241      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2242    
2243    checkpoint57c_post
2244    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2245    o generate new output.txt files on faulks with g77 & the new -ieee option
2246    checkpoint57c_pre
2247    
2248    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2249      update output.txt of exp. global_ocean.90x40x15
2250    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2251      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2252    o add saltFlux(+File) forcing capability with periodicExternalForcing
2253    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2254    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2255    o improvements for the MNC output from DIAGNOSTICS:
2256      - correct handling of the unlimitied dimension
2257      - all dims now have associated coordinate variables
2258      - variables located at U, V, and Corner ("Z") points are now written
2259        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2260        *all* data points are output
2261    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2262    o added pkg/seaice/seaice_monitor.F
2263    o mdsio_readfield.F can now read files visible only to master MPI process.
2264    o pkg/seaice: some test code for ice-modified ocean stress
2265    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2266      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2267      spurious negative numbers for precipitation and humidity.  Will cause
2268      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2269    o pkg/ctrl/
2270      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2271        May be enabled via doPackDiag
2272      *  introduce z-scaling of
2273         + gradient (doZscalePack) and
2274         + control (doZscaleUnpack)
2275    o pkg/mdsio/
2276      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2277      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2278    
2279    checkpoint57b_post
2280    o simplify options in diagnostics_fill arguments (remove weird combinations)
2281    o fix MNC coordinate variables so that they now contain per-face index
2282      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2283      general, EXCH2 grids are only aligned to a "local" coordinate system
2284    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2285    o Implement instantaneous output within pkg diagnostics:
2286      setting a negative frequency in data.diagnostics produces
2287     "snap-shot" output (as opposed to time-average if freq > 0)
2288    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2289      NOTE: change ptracer diagnostics name: use 2 characters to work with
2290            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2291    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2292      becomes the coordinate variable for the 'T' dimension
2293    o add CF-style coordinate variables to MNC
2294      - just a first cut:  numbers are meaningless on the cubesphere and
2295        missing along the T axis but otherwise it works!
2296    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2297    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2298    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2299      this is based directly on what the model compute, so that the content of
2300      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2301    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2302    o clean up build options files for SunOS, in particular
2303      - remove -traditional from xmakedepend
2304      - change -xarch=v9 to -xarch=native for f77
2305      - restore use of make (not gmake)
2306      - add CC=gcc if using g77
2307    o changes per discussion of AM, JMC, & EH3 today:
2308      - move redundant "grid" variables out of "state" -- in preparation of
2309        creating proper CF-style coordinate variables and in recognition
2310        that any/all grid variables can be easily copied (eg. w/NCO) from
2311        the grid files into any of the other NetCDF files
2312      - *always* output grid variables with MDSIO (this will eventually be
2313        changed)
2314      - output MNC grid file if useMNC is true
2315    o every instance of _END_MASTER() has been found and replaced with
2316      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2317      preprocessors
2318    o re-arrange diagnostics pkg initialisation:
2319     - allow each package to extend the available diagnostics list
2320     - add some checking and fix small problems (multi-threaded, ...)
2321     - new S/R diagnostics_fill (replace fill_diagnostics):
2322       look through the short list of active diag. (instead of the long list)
2323       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2324    
2325    checkpoint57a_post
2326    o this set of changes restores TAMC compatibility
2327      tested for global_ocean.90x40x15 adjoint on trough
2328      (what a pain)
2329    
2330    checkpoint57a_pre
2331    o some modifs in tools/build_options for sunos
2332    o call ctrl_pack for ctrl at end for optimcycle=0
2333    
2334    checkpoint57
2335    o add horizontal bi-harmonic viscosity for vertical velocity
2336      - new parameter viscA4W (defaults to viscA4)
2337      - affects only non-hydrostatic code
2338      - to be done: no-slip lateral boundary conditions
2339    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2340    o implement Implicit Vertical advection for pTracers
2341    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2342      (implemented also for implicit vertical diffusion & advection)
2343    o OBCS: extend application of tracer open boundary conditions
2344      to a strip beyond the boundary of width Olx/Oly
2345    o add call monitor to TAF set of required calls (flow directives)
2346      and include in natl_box_adjoint
2347    o untangle a few ifdefs related to cost, ctrl, autodiff
2348      untangel a few ALLOW_ECCO_OPTIMIZATION
2349    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2350      (theta2, salt2 in ecco_cost_weights)
2351    
2352    checkpoint56c_post
2353    o OBCS as control variables
2354      - update ctrl_ad_diff.list, obcs_ad_diff.list
2355      - remove balance of obcs controls from default
2356      - fix index bug nobcs in ctrl_init
2357      - fix dummy fields filen in ctrl_pack
2358      - add dummy weights for obcs
2359    o lsopt: comment out fort.94 output
2360    o optim:
2361      - remove unnecessary header files
2362      - adjusted namelists
2363      - add xerbla.F to Makefile
2364    o exf:
2365      - multiple modifications of exf_check_range
2366      - unit change in exf_init_runoff from [m/year] to [m/s]
2367    o mdsio:
2368      - i/o-vector change debugLevel from debLevA to debLevB
2369    
2370    checkpoint56b_post
2371    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2372      is called from DO_THE_MODEL_IO
2373      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2374      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2375      - clean up PTRACERS_WRITE_TIMEAVE a little
2376    o add another verification experiment that tests both the cfc-pkg and
2377      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2378      reactive tendencies treated inline with regular timestepping
2379    o testreport previously did a lousy job of comparing small numbers, so
2380      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2381      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2382      testreport.
2383    o ptracers_monitor: bug fix for MPI
2384    
2385    checkpoint56a_post
2386    o GCHEM: finish reorganizating the package
2387      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2388        (introduces another 3D-array for each passive tracer, but only if
2389        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2390        gchemTendency is not needed because the timestep is done separately)
2391      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2392      - GCHEM is now---more or less cleanly---separate from PTRACERS
2393      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2394        so clear to me how that should be done in a general way.
2395    o CFC: improve formatting of output in CFC_ATMOS
2396    o PTRACERS:
2397      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2398        that ALL experiments with ptracers enable can be checked. This makes
2399        GCHEM_MONITOR obsolete.
2400      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2401        monitorFreq
2402      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2403    o add PTRACERS (PTR0[1-5]) to testreport output
2404    o exf_check_range:
2405      * default changed to .TRUE.
2406      * will check values for niter0 if debLevA, every timestep if debLevB
2407      * STOP in exf_check_range if 'out of range'
2408      * range chosen generous to allow for potential extema
2409      TBD: a version with stricter range
2410           permitted range would be runtime parameters
2411  o GMredi:  o GMredi:
2412    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2413    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2416  o GCHEM:
2416    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2417      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2418    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2419      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2420        this flag is now only visible within GCHEM-pkg routines.
2421      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2422        be replaced by a 3D array that is computed before thermodynamics; for
2423        this, the tracer ID iTracer had to be included into the parameter list
2424        of ptracers_forcing
2425      - set up forward_step to call gchem_forcing, that will replace
2426        gchem_forcing_int in ptracers_forcing
2427      - cleaning up
2428  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2429    
2430  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2643  o add two new packages
2643    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2644    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2645      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2646      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2647  o add offline package  o add offline package
2648  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2649    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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