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revision 1.589 by jmc, Thu Dec 8 22:25:07 2005 UTC revision 1.1130 by mlosch, Wed Jun 24 08:05:07 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
9      1. introduce fields for time step (N-1)
10      2. do not use levels 2 and 3 anymore (but keep them)
11      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
12         includes changes to pkg/thsice/thsice_get_velocity.F,
13         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
14         pkg/obcs/obcs_apply_uvice.F.
15     - completely remove code for leap-frog time stepping for second order
16       advection
17    
18    checkpoint61q
19    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
20     - the boundary conditions along open boundaries are unclear, because the
21       associated masks are set to zero and are thus treated as closed when
22       applying the slip-boundary conditions.
23     - move initialisation of grid variables from seaice_init_varia to _fixed
24    o adding doc/diags_changes.txt
25    o model/src:
26      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
27       to avoid "_diags" naming if no relation to pkg/diagnostics.
28      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
29       file and only call PLOT_FIELD_XYZ if debugMode=T.
30      remove few PLOT_FIELD_XY calls outside initialisation.
31      remove few unnecessary BARRIER.
32    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
33      of salt_plume package in Southern Ocean
34    o pkg/thsice:
35     - fix hOceMxL in overlap (needed for sea-ice advection);
36       update output of experiment global_ocean.cs32x15.icedyn.
37    o pkg/seaice:
38     - make the (placeholder-)tracer IceAge a little more meaningful
39      by avoiding ridging of age due to convergent ice flow
40     - add diagnostics for surface temperature, atmospheric and oceanic
41       heat flux, and atmospheric and oceanic ice growth
42    
43    checkpoint61p
44    o eesupp (global_max & global_sum):
45     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
46     - remove starting & endding barrier (no longer needed)
47    o pkg/mdsio, writelocal:
48       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
49       (remove the STOP): uses shared buffer IO to store data from all threads
50       and then let master-thread write nThreads tiles.
51    o pkg/mdsio (read/write field):
52     - tiled IO done in 1 piece (all levels at a time);
53     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
54     - multi-threaded: allow to read/write local (non-shared) array
55       (was already working with singleCpuIO ; now works also without);
56       => no longer needs barrier call after reading a file (added inside
57       mds_read/write field).
58     - move barrier calls outside gather/scatter_2d to mds_read/write_field
59    o pkg/obcs/exf
60      - exf_getffieldrec.F: add a few ". _d 0" and
61                            add code to catch the case fldperiod = 0.  
62      - obcs_precribe_read.F: change if statements so that they match
63                              the variable type (_RL)
64      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
65        exf_iprec) as part of namelist EXF_NML_01
66    o pkg/mdsio:
67      - read/write tiled (local) files: read/write 1-level tile chunk at a time
68        (instead of segment of length sNx); expected to speed up tiled IO.
69    o pkg/exch2:
70      - take buffer copy from/to array out of S/R exch2_send/recv into new
71        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
72        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
73      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
74      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
75        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
76        including Topology header file (and common blocks).
77      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
78        remove 2nd exch call in exch2_s3d_rx (no longer needed).
79      - document S/R arg. list (+ update some comments)
80    o pkg/seaice:
81      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
82        temperature and humidity over sea ice based on climatological values.
83      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
84        of LSR (this change is expected to change the results slightly because now
85        it uses slightly difference moduli from the second last LSR solution, but
86        that is more consistent with the stress computations; this part of the code
87        is not tested in the verification experiments)
88      - fix diagnostics for flux of ice in case of B-grid
89      - turn strain rates eij and press into global fields within global
90        common block in SEAICE.h for more straighforward diagnostics
91      - fix diagnostics for principal stress components, press, zeta, eta
92        to give something meaning full
93    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
94      new output (all 4 tests) using default rotationPeriod.
95    o pkg KPP:
96      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
97      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
98        and normal grid from 1 to Nr)
99    o Fix computations of L4rdt in mom_calc_visc.F
100    o eesupp:
101      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
102      should be called before a "stop" if we know that all process are going
103      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
104    
105    checkpoint61o
106    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
107    o model/src/ini_curvilinear_grid.F:
108       compute angleSin/CosC when they are not read from a file
109    o pkg/seaice:
110       add pseudo time stepping for LSOR
111    o pkg/exch2:
112       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
113    o pkg/seaice:
114       Adding separate sea ice albedo, drag coefficients, and HO in Southern
115       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
116    o SingleCpuIO:
117       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
118    o pkg/seaice:
119       put exchanged variable in (local) common block for MPI+Multi-Threads
120       to work (necessary with exch1, and for now with exch2 too).
121    o verification: to get more experiments tested with mpi, mth and mpi+mth,
122      change tiling of:
123       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
124       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
125      update output of exp:
126       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
127       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
128      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
129                       (note: output.txt generated on faulks using only 1 tile)
130    o eesupp & mdsio (SingleCpuIO):
131     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
132       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
133       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
134     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
135     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
136       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
137    o pkg/exch2:
138     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
139       read parameter file "data.exch2" if it exists; otherwise try default regular
140       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
141     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
142       with new code (not to be used, just as a backup solution).
143     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
144       in utils/exch2/input.
145    
146    checkpoint61n
147    o eesupp & mdsio (SingleCpuIO):
148      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
149        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
150        receive real*4 array (instead of real*8) to read/write 32.bit files.
151        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
152         and remove new mapping S/R)
153    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
154      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
155        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
156        when using exch2. Add S/R to map global io-buffer to global model array.
157      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
158    
159    checkpoint61m
160    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
161      and add 3 other S/R for other types (R4,R8,RS).
162      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
163    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
164     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
165     - reduce number of macro definitions (keep only those which are used);
166       can always call directly the corrresponding S/R if needed.
167     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
168       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
169     Fixed wrong type of arg in:
170       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
171       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
172     To fix: global_sum of var in common block is wrong (multi-threaded) in:
173       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
174     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
175    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
176      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
177    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
178    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
179      edges are closed (zero depth); might happen with "blank tiles";
180      for now, disabled if using OBCS.
181    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
182      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
183    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
184      to reduce length of 1.D array print in STDOUT.
185    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
186      + use 48 tiles (16x8): this will allow to test "blank tiles".
187    o start to test MPI + multi-threaded (change testreport to skip tests
188      where number of tiles do not match).
189    o genmake2: add option "-omp" to turn on Open-MP ;
190      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
191    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
192      and keep the original tile numbering. Note: compatible with old
193      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
194    
195    checkpoint61l
196    o Overlaps had been forgotten in calculating ijk keys : fixed
197    o fix cyrus makedepend for gcc 4.4
198    o experiment fizhi-cs-aqualev20:
199      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
200      and generate new output. Note: new output is much closer to the old
201      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
202      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
203    o pkg/fizhi:
204     - change to avoid indices going deliberately over array-bounds
205     - remove unnecessary MPI stuff
206     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
207     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
208       does not go over array-bounds and therefore returns reliable output.
209     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
210       this S/R has 4 output arguments, which are used inside "get_alarm";
211       when it is called with the same variable "ndum" in place of several
212       output arguments, this produces weird side effect inside "get_alarm"
213      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
214       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
215       address) and produces error.
216    o tools/gemake2: (March 27-29 2009)
217      with option "-mpi": link *_mpi files from "MODS" dir (this is what
218      testreport does).
219    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
220    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
221       update lab_sea.lsr & lab_sea.salt_plume results
222    o pkg/seaice:
223      Major overhaul of the LSOR solver: change discretization from original
224      finite differences to finite volume. The old routine is still in the
225      file seaice_lsr.F and can be turned on with the CPP-flag
226      SEAICE_OLD_AND_BAD_DISCRETIZATION
227      Along with this change, the discretization of the strain rates is changed.
228      The same flag turns on the old discretization in seaice_calc_strainrates.F
229      All verification experiments with seaice are affected (except for
230      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
231      results by setting the above flag.
232      Further changes involve changes in defaults:
233      - ALLOW_FLOODING is defined and turned on by default
234      - SEAICEadvSnow = .true. is now the default
235      - SEAICEadvSalt = .true. is now the default
236      - SEAICEadvAge  = .true. is now the default
237      - SEAICE_clipVelocities  = .false. is now the default
238                                         (as per J. Zhang's recommendation)
239      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
240        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
241      - seaice_growth: replace computation of UG by a simple copy from wspeed
242    
243    checkpoint61k
244    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
245      seaice_lsr: fixed a few metric terms,
246                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
247                  add more debugging diagnostics
248      seaice_evp: removed superfluous many metric terms of FV discretization
249                  of stress divergence
250                  affects lab_sea, lab_sea.hb87
251      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
252                  of stress divergence for non-evp solver
253                  (this part is not tested anywhere)
254      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
255                  they were effectively only half slip
256                  affects lab_sea.hb87
257      updated all relevant verification experiments (except lab_sea//output_adm.txt
258        which was left over, but fails at level 7 & 6)
259    
260    checkpoint61j
261    o pkg/seaice: turn a few hard wired parameters into run time parameters
262    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
263      time in seconds as promised by the usints in seaice_monitor and exf_monitor
264    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
265      that are not cubed-sphere grids
266    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
267    o pkg/ctrl:
268      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
269    o non-hydrostatic (calc_gw.F):
270      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
271      update output of exp. global_ocean.cs32x15.viscA4
272    o remove backward compatibility for thetaMin,phiMin
273      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
274    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
275      interpolated wind field not only for curvilineargrid=.true., but also
276      for a rotated grid (rotateGrid=.true.)
277    o pkg/exf: add capability to bypass interpolation for runoff
278      by setting yet another CPP-flag
279    o eesupp/src, B-grid exchange:
280      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
281    o autodiff
282      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
283      allows to switch to single-prec common blocks;
284      corresponding switch occurs in tamc.h, integer isbyte
285      TAF store directivs "byte" and "kind" seem equivalent;
286      Most tamc.h have been updated correspondingly.
287    
288    checkpoint61i
289    o autodiff:
290      fix autodiff_sore/_restore indices for obcs
291      (spotted by I. Hoteit, M. Mazloff)
292    o pkg/autodiff, pkg/ctrl:
293      Add flag to reduce all tapelev I/O to single-prec.
294      In data.ctrl set
295        doSinglePrecTapelev = .TRUE.
296    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
297      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
298    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
299      real fresh water flux (not yet)
300    o pkg/mdsio & rw:
301     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
302     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
303    o pkg/flt:
304     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
305       init_fixed & ini_varia.
306     - clean-up & simplify linear interpolation S/R:
307       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
308     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
309     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
310     - add vert. coordinate & horiz. indices to output files.
311     - change vertical position in initial condition, from index to depth [m].
312     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
313       (easier to get to a curvilinear grid) ; delX,delY no longer used.
314    o pkg/ggl90: a few modifications:
315     - fix bottom boundary condition, and interpolation of KappaE
316       near top and bottom
317     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
318     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
319     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
320    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
321      (maintain temporary backward compatibility, until next checkpoint)
322    
323    checkpoint61h
324    o pkg/diagnostics with "periodic averaging diagnostics":
325      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
326    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
327    o pkg/obcs: fix loop ranges for balancing code
328    o pkg/flt:
329     - improve criteria for finding which tile owns a float.
330     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
331    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
332      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
333      with ocean biogeo)
334    o pkg/flt:
335     - do some cleaning and fix the restart ;
336     - add output.txt in flt_example/results to get this pkg tested.
337    o genmake2: add an EXTENDED_SRC option and flag.
338       for now, cannot be turned on on command line (only through genmake_local)
339    o pkg/mdsio: read/write vector:
340     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
341     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
342       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
343     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
344      (drop to 4 digits matching for grad). But this test does not look very
345      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
346    
347    checkpoint61g
348    o pkg/flt:
349      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
350       + make OPTIONS file more standard.
351      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
352      - fix _BYTESWAPIO CPP-Flag
353      - standard reading of file-parameter "data.flt"
354      - fix argument list of S/R FLT_RESTART
355      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
356    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
357    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
358      a still unfixed compiler/optimization bug
359    
360    checkpoint61f
361    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
362      update results of global_ocean.cs32x15.icedyn test.
363    o move getcon.F from model/src to pkg/fizhi.
364    o pkg/exf: add parameter for extrapolation of temp up to the surface
365       and option to prevent negative evap (in bulk_largeyeager04 only).
366    o Prather Advection scheme: fix tracer conservation for divergent flow
367      (e.g., when using NonLin Free-Surface).
368    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
369    o gmredi (Visbeck-variable-K):
370     - add more parameters to Visbeck-variable-K.
371     - use a 5 points average for dSigmaR in Visbeck-K calculation
372       (more "homogenous": same stencil and same weights as in dSigmaH)
373     - update output of ideal_2D_oce experiment.
374    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
375      (#undef REAL4_IS_SLOW)
376     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
377       coordinate variable
378     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
379       (surface forcing fields), removes some of the functionality
380     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
381     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
382       probably not all: copy _RS surface flux fields to RL field before
383       calling DIAGNOSTICS_FILL
384     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
385       real*4 (CALL EXCH_*_RS) versions.
386     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
387       (generate new output).
388    
389    checkpoint61e
390    o gmredi (Visbeck-variable-K):
391      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
392      - change computation of Visbeck-K where Slope > Smax :        
393        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
394        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
395    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
396      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
397    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
398    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
399      does not become too large (to avoid precision problems in implicit-diffusion
400      solver); update ideal_2D_oce output.
401    o pkg ggl90:
402      - in ggl90_cal.F: compute only one set of visc/diff, used to
403        step forward TKE/T/S/momentum
404      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
405        have Prandlt =1)
406    o gmredi (fm07):
407      - add lower limit on Transition layer thickness + lower limit on 1/lambda
408      - allow to set few more params from data.gmredi
409    o pkg ggl90:
410          - add missing sqrt(2) factor in computation of mixing length
411            scale in ggl90_calc.F
412            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
413    
414    checkpoint61d
415    o adjoint modifs
416      - adapt to new field rhoInSitu
417      - allow to revert from StoreDynVars2D, StoreDynVars3D
418        to individual fields
419        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
420    o store 3-D (in-situ) density in commom block (DYNVARS.h)
421     - save 1 rho computation.
422     - no longer modify T & S inland when using down_slope pkg.
423    o gad_som : allow to switch to SOM advection for T & S without corresponding
424      pickup files (using new S/R: MDS_CHECK4FILE).
425    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
426      (for useSingleCpuIO to work in multi-threaded)
427    o pkg/shelfice:
428     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
429       with SHELFICEtopoFile in data.shelfice
430     - move code for reading ice shelf topography and modifying hFacC into separate
431       subroutines of the shelfice package
432     - separate initialisation of "fixed" and "variable" variables
433     - kTopC is not (yet) replaced by kSurfC, although this is possible
434    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
435    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
436      and rename:
437      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
438      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
439    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
440    
441    checkpoint61c
442    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
443      to add mass source/sink of fluid in the interior (3-D generalisation
444      of oceanic real-fresh water flux).
445    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
446    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
447    o new pkg: down_slope
448      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
449      - presently, modify T & S inland (dwnslp_calc_rho.F).
450        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
451      - implementation for ocean in P-coords not tested.
452      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
453    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
454      (to facilitate conversion of oceanic pkg to p-coordinate).
455    o change FIND_RHO to FIND_RHO_2D :
456      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
457    o new pkg: cheapaml
458    
459    checkpoint61b
460    o exch2:
461      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
462      - no longer depend on the order sequence (N,S,E,W).
463      - 3rd exchange no longer needed (tested with 24 tiles).
464      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
465      - exch_UV_A-grid readily available (but not yet tested).
466      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
467      (both are no longer needed) in exch_uv: no effect in forward run; but
468       get truncation error differences with adjoint exch.
469    o exch2:
470     - change index-bounds storage (moved from target to local tile,
471       more intuitive this way) ; rename/remove some variables.
472     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
473    
474    checkpoint61a
475    o exch2/matlab-topology-generator:
476      fix bug in index bounds for N-S internal exchange (hard to tell if this
477      had any effect on the solution).
478    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
479      is exceeded
480    o testreport: modify syntax of awk, so that it works also with
481      awk, and not only with nawk and gawk
482    
483    checkpoint61
484    o autodiff
485      Change default for TAF usage by removing argument '-nonew_arg'
486      This changes TAF subroutine argument list (ordering of active var.)
487      Omission of this flag leads to incompatibility w.r.t. TAMC
488      To restore TAMC-compatibility, need following modifs:
489      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
490      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
491      Tested TAF version is 1.9.22
492      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
493    
494    checkpoint60
495    --->>> This is the last checkpoint for which generating the adjoint
496    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
497    --->>> by default.
498    --->>> Future checkpoints will ommit this flag by default.
499    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
500    o pkg/grdchk: Add gradient check to etan0 perturbations.
501    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
502    o pkg/autodiff: more flexibility in zeroadj.
503      model/src: modifying do_oceanic_phys.F accordingly.
504    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
505    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
506      special setup of gmredi for which the adjoint is stable
507      enough for parameter optimization.
508    o bridging the gap between eddy stress and GM.
509      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
510          along with a change in CPP option (now ALLOW_EDDYPSI).
511      -> when using GM w/ GM_AdvForm:
512          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
513          is applied either in the tracer Eq. or in momentum Eq.
514          depending on data.gmredi (intro. GM_InMomAsStress).
515      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
516      The key modifications are in model/src/taueddy_external_forcing.F
517      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
518    
519    checkpoint59r
520    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
521      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
522      fix option to read coriolis(@ cell-corner) from files with CS-grid.
523    o pkg/mnc: add some attributes to standard 1D-coordinate variables
524    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
525      mass points, when using mnc for output
526      - add runtime parameter (missing_value, missing_value_int) to override
527        default (which is the value of getcon('UNDEF'))
528    o pkg/mnc: prepare mnc for the actual use of missing values with the
529      diagnostics package: small fix in mnc_cw_readwrite.template and more
530      initialisation of never used fields
531      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
532      versions
533    o pkg/thsice/thsice_ini_vars.F added default initial values so that
534      thermodynamics sea ice solver does not blow up when some initial fields
535      are missing.
536    o move from external_forcing_surf.F to ini_forcing.F
537      the p-coord. hack consisting in using pLoad to set phi0surf ;
538      update output of tutorial_global_oce_in_p (affected @ truncation level).
539    o Freshen up a bit hs94.1x64x5, notably:
540      remove rotationPeriod and tRef=5*0. (adjoint only), and add
541      exactConserv=.TRUE.
542    o pkg/generic_advdiff:
543      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
544      applies to files where Temperature & Salinity 2nd Order moments are used.
545    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
546      this uses a dynamically allocated internal state data structure
547      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
548      and requires a fortran 90 compiler
549    
550    checkpoint59q
551    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
552       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
553    o Refresh tutorial_global_oce_biogeo, notably:
554      - change bathymetry (put back seamounts in ACC, use hFacs)
555      - change EOS (POLY3 --> JMD95Z)
556      - use Bryan-Lewis vertical diffusivity
557      - use multidimensional advection
558      - remove old virtual virtual in dic pkg, now done through ptracer pkg
559      - change a couple of parameters in dic pkg
560    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
561    o pkg/obcs: change default to OBCSfixTopo = .true.,
562      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
563      - replace "debugMode" with "debugLevel .GE. debLevB"
564    o implementation of TAF directives for gchem,cfc,dic
565    o remove "exp5" (replaced by tutorial_deep_convection).
566    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
567      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
568      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
569      --> changes results in exp4, seaice_obcs
570    o tutorial_deep_convection :
571      update the set-up and increase resolution and domain size ; start
572      from pseudo initial conditions = output at t=120mn in order to see
573      something happening when running testreport.
574    o pkg/seaice: add os7mp as an advection scheme
575                  add check for advection schemes
576                  add a flag for restoring T and S underneath sea ice
577    o pkg/my82: add netcdf-support and diagnostics
578    o thsice pkg:
579      - Now hsMax limits snow height by turning it into ice following
580        flooding scheme (and now conserving energy)
581      - Slight rewriting of the formula in thsice_calc_thick.F
582      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
583      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
584    
585    checkpoint59p
586    o gchem / dic / cfc :
587      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
588      - add new parameter files: "data.dic" & "data.cfc" ;
589      - various re-arrangement in initialisation & header file ;
590      - fix tutorial_global_oce_biogeo for multi-threaded test.
591    o pkg/dic: test for "pickup_dic" file when restarting ;
592      if no pickup-file, can restart with a re-initialised pH (same as it did
593      before) providing pickupStrictlyMatch is set to False.
594    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
595      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
596    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
597      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
598    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
599     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
600       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
601    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
602       scheme to use for vorticty-term ;
603     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
604       (with default selectVortScheme, return to original discretisation)
605     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
606    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
607    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
608      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
609      also fix diagnostics VISCAHW & VISCA4W.
610    
611    checkpoint59o
612    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
613    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
614      move a few statemens out the main loop into separate loops
615    o pkg/shelfice:
616      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
617        (kg/m^2/s), does not break tests, because in verification/isomip,
618        rhoConstFresh=rhoConst (by accident)
619      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
620      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
621        new file model/src/seawater.F, so that they are available for all pkgs.
622      - convert potential temperature into in-situ temperature. This changes the
623        isomip tests => update tests
624    o add a flag writePickupAtEnd (default=true) to be able to suppress
625      writing a pickup at the last timestep
626    o tools/mpack-1.6 :
627      - disable automake (not working) and autoconf (not needed).
628      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
629        also cleaner with much less compilation warnings.
630    o pkg/profiles:
631      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
632      (for "less than 32 characters name" compiler requirement)
633    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
634      conditions that have a different sampling frequency than S/T/U/V obcs
635    o pkg/diagnostics (stats-diags):
636      - fix global Min/Max in case 1 processor get only empty tiles
637    o genmake2: replace (4 times)
638         make genmake_tc_1.o >> genmake_warnings 2>&1
639      with
640         COMM="$CC $CFLAGS -c genmake_tc_1.c"
641         echo $COMM >> genmake_warnings
642         $COMM >> genmake_warnings 2>&1
643      to make genmake2 always see the value of CC as specified in the optfile.
644    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
645      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
646      - modify verification advect_cs test to test SOM-advection on CS-grid.
647    o pkg/ctrl:
648      - Rewrite of ctrl_map_ini_ecco.F,
649        introducing a generic routine (ctrl_map_ini_gen.F).
650      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
651    
652    checkpoint59n
653    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
654      number in dedicate array "hdiag":
655      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
656        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
657      - many small changes (integer format) for large number of diagnostics
658      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
659        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
660    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
661      usingSphericalGrid, this allows to define the rotated grid coordinates
662      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
663      geographical coordinates according to the inverse of the rotation defined
664      by the Euler angles, so that Coriolis parameter and online-interpolation by
665      exf works with the geographical coordinates on XC/YC/XG/YG.
666      Naturally, this feature does not work with all packages, so some
667      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
668      profiles), because there the coordinates are assumed to be regular
669      spherical grid coordinates.
670    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
671      - introduce isopycnal diffusion coefficient control.
672    o tools/adjoint_options:
673      - additional control vector components.
674    o pkg/mnc: have mnc create marginally meaning full coordinate variables
675      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
676    o pkg/mypackage:
677      - add example of read/write pickup for state-var ;
678      - add entry points to the main code for state-vars diags & write-pickup.
679    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
680      transitions for useExfYearlyFields
681      - add new subroutine that determines the file to read from for
682        use*YearlyFields = .TRUE. and .FALSE.
683      - add a verification experiment to global_with_exf that tests
684        useExfYearlyFields with USE_EXF_INTERPOLATION defined
685    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
686      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
687      subroutines (which could be generated from a template, because they are
688      almost identical), for now they are included in obcs_prescribe_read.F for
689      simplicity
690    o pkg/exf:
691      - add a little more diagnostic to exf_interp_read (in analogy to
692        mds_read_field, can be turned off with debugLevel < debugLevA=1)
693      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
694        ugly but fast by unrolling short inner loops, inserting a unroll=8
695        directive in routine lagran, and splitting a loop and making do while the
696        outermost loop (the latter requires the intoduction of index arrays)
697    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
698    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
699      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
700    o verification/seaice_obcs: updated for restart test and latest options
701    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
702      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
703      for now this is only available for the C-grid code and also within
704      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
705    
706    checkpoint59m
707    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
708      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
709    o gad_som : fix flux output (& diagnostics) to have same units as other  
710      advection scheme fluxes (was previously multiplied by deltaT).  
711    o added verification/seaice_obcs both to test seaice open boundaries
712      and to provide an example matlab scrpt for generating them
713    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
714    o pkg/salt_plume: clean up salt_plume_frac.F to
715      remove redundancy in PlumeMethod 1 and 4
716    o pkg/kpp: added saltplume diagnostics
717    o pkg/obcs and pkg/seaice:
718      - do not set uice and vice to zero when OB*icefile are unspecified
719      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
720      - moved seaice tracer obcs after call to seaice_growth
721    o pkg/salt_plume: added various options for salt plume depth
722      criterion and for vertical distribution of the salt
723    
724    checkpoint59l
725    o pkg/ptracers: new version of ptracers pickup:
726      read meta file and write only fields which are needed to restart.
727      ( same logic as main pickup file ; also using pickupStrictlyMatch )
728    o pkg/seaice:
729      - add timescale for melting due to warm mixed layer as a means of
730        setting SEAICE_availHeatFrac more conveniently
731      - add a CPP-flag/runtime parameter check for flooding algorithm
732      - reformulated availHeat in seaice_growth.F to be independent of AREA
733    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
734      unit changes
735    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
736    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
737      SX vector computer.
738    o pkg/seaice:
739      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
740        seaice forcing fields can now be read only through pkg/exf
741      - removed some unused halos
742    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
743    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
744      or U/VICE from U/VWIND before computing U/VSTRESS
745    
746    checkpoint59k
747    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
748      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
749    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
750      all experiments pass when compile with un-initialised var. checking option.
751    o added pkg/salt_plume
752    o script to test restart (for now, in MITgcm_contrib/jmc_script)
753    o pkg/seaice: new read/write pickup version.
754      read meta file and write only fields which are needed to restart.
755      ( same logic as main pickup file ; also using pickupStrictlyMatch )
756    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
757    o lab_sea.hb87: modify the domain & update output.hb87.txt :
758      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
759      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
760      process. Fixed here by closing the domain at the Northern boundary.
761    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
762    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
763      a set of consecutive levels in/from a 3-D array.
764    o pkg/ptracers:
765      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
766      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
767    
768    checkpoint59j
769    o in pkgs: dic, obcs, offline, rbcs:
770      standard way to compute coeff. for time interpolation between 2 time reccords
771      which retains full precision (& make results less dependent on compiler).
772      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
773    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
774      packages instead of reading ice cover and wind speed separately
775    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
776     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
777      to allow to compile customized code before the update)
778    o cleaning-up:
779      - fix CPP instruction syntax in pkg/obcs
780      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
781        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
782      - fix some threads issue in IO parts.
783    o pkg/dic:
784      - add tons of "_d 0" (--> much better testreports !)
785       and then update outputs of tutorial_global_oce_biogeo
786    o pkg/mom_fluxform:
787      add a special version of momentum advection intended to conserve momentum
788      next to a bathymetry step or a coastline edge. (default = off = #undef)
789    o new read/write pickup version:
790      - for now, only implemented for main (mdsio) pickup file.
791      - write out only what is needed to restart; merge pickup_nh , pickup_ph
792        and main pickup together.
793      - read meta file; read only what is needed to restart; stop if a field
794        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
795        if it make sense (even if the restart is not perfect).
796      - if no meta file, assume that pickup to read corresponds exactly to
797        a pickup that would currently be written.
798      - read pickup written in the old format (until checkpoint59i) if it
799        recognizes an old meta file (no field-list).
800      - add a meta file in exp. which starts from a pickup: 2 cases:
801        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
802         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
803        b) a meta file describing the content of the associated pickup file
804         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
805    o pkg/mdsio & pkg/rw:
806      - new routine to read a meta file ; new set of routine to read
807        Multiple-fields file (with meta file).
808    o added open boundary conditions capability for seaice
809        HSNOW, HSALT, UICE, and VICE
810    
811    checkpoint59i
812    o adjoint:
813      * fix multiDimAdvection adjoint
814        (partial recomputation problem by TAF for fVerT(:,:,kDown)
815        and comlev1 size definition (maxpass vs. max. number of tracers)
816      * verification/global_ocean.90x45x15 adjoint now tests
817        NLFS and multiDimAdvection using DST3 (=30)
818      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
819    o pkg/kpp: add "_d 0" to real constant (if missing);
820      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
821      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
822    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
823      for internal parameters related to restart process (formerly from PARAMS.h)
824      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
825    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
826      as argument. (only atm2d & obcs write_pickup have not yet been updated)
827    o pkg/monitor:
828      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
829      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
830      - account for deep Atmosphere factor and density factor (anelastic)
831    o added open boundary conditions capability for seaice HEFF and AREA
832    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
833      thermodynamics
834      - requires a little reorganization, which affects the testreport results
835        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
836        so that now the conservative form is tested
837      - add a few comments
838    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
839    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
840    o add new diagnostics to seaice: advective, diffusive fluxes (only for
841      multidim-advection, for scheme 2 they are not filled) and transports,
842      thermodynamic growth rates
843    o change units of EmPmR (inside the code, + within coupling interface)
844      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
845      Affects results @ truncation level (cg2d match) and update output of
846       experiments: lab_sea(6), global_ocean.90x40x15(10),
847      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
848      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
849      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
850      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
851    
852    checkpoint59h
853    o pkg/exf:
854      - improve vectorization by moving if-statement out of loops in
855        exf_mapfields, exf_radiation
856      - exf_bulkformulae.F: introduce 2D fields and vectorize code
857    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
858    o testreport:
859      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
860        monitor & update offline_exf_seaice exp. output.
861      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
862    o pkg/seaice:
863      - bug fix in the evp solver: boundary conditions were affected be
864        masking of zMax/zMin (changes results)
865      - minor bug fix in boundary conditions in seaice_calc_strainrates
866        (changes results for no_slip)
867      - seaice_lsr.F: make interpolation of eta dependent on boundaries
868      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
869      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
870        stress formulation and no-slip boundary conditions
871    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
872      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
873    o pkg/seaice: a first HSALT time stepping equation has been checked in
874    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
875      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
876      without requiring DO-IF statements
877    o pkg/thsice:
878      use continuous power-law function for partition of energy between lateral
879      melting/freezing and thinning/thickening ; old code using step function
880      still available with #undef THSICE_FRACEN_POWERLAW
881      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
882    o testreport: change AD testing : check against results/output_adm.txt
883      using same scripts as for forward test.
884    
885    checkpoint59g
886    o adjoint testing: in preparation for changing testreport:
887      - output format: cost and grad written on separated lines
888      - ad output results in directory "results" (instead of "results_ad")
889    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
890    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
891    o pkg/ecco: allow user defined cost function contributions
892    o testreport:
893      Allow to choose (per experiment) the list of tested output variables
894       and the main variable (used to issue a pass/FAIL ) ;
895      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
896      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
897      Also modify printing of summary:
898       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
899       b) echo the list of tested variables in the individual summary.txt of
900          each experiment.
901    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
902      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
903      (but still depend on the tile decompostion of the domain).
904    o pkg/seaice: change a discretization detail to make the B-grid code
905      "more symmetric". This change is likely to remove all "ridges/leads" that
906      where quasi-aligned with the grid in B-grid solutions. It may also be
907      the solution to the stress coupling issues with the B-grid.
908    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
909      remove .cvsignore from input dir. (since testreport no longer run here).
910    o pkg/thsice:
911     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
912     - fix reshaping of sea-ice just after advection:
913       melt all the ice only if ice-volume is too small.
914     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
915       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
916     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
917    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
918      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
919    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
920      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
921      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
922      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
923      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
924      -> update output.txt
925    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
926     this affects truncation error: -> update output.txt of exp:
927      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
928      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
929    
930    checkpoint59f
931    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
932    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
933      a bounded range (in forward mode)
934    o pkg/ecco, ctrl, autodiff and mom_common:
935     internal parameter controls, completements of implementations
936    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
937    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
938      (not seem any difference in testing results).
939    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
940       at face corners.
941    o pkg/generic_advdiff:
942     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
943      loop range indices for computing vertical advection tendency
944      and do the calculation in the interior only (no overlap) ;
945      for now, only implemented for SOM advection (to save CPU time).
946     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
947    o exch2 adjoint
948      First set of changes:
949      - add exch2 hand-written adjoint templates
950      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
951        This will require cleanup in pkg/autodiff/*.F
952        (changed routines currently kept separate in verif. code/)
953      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
954        that used to hide exch2 or cubed-sphere specific code
955        (commented via 'cph-exch2')
956    o pkg/seaice
957      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
958    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
959       output of global_ocean.cs32x15.thsice .
960    
961    checkpoint59e
962    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
963      for B-grid vector (not yet tested) and C-grid vector (<- only used
964      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
965    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
966      (#ifdef ALLOW_SALT_PLUME)
967    o gather_2d/scatter_2d: removed halo regions
968    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
969      scheme and the corresponding test case (under front_relax dir). For now,
970      only available with Skew-flux form and not yet tested in realistic set-up.
971      adjoint: store directives updated, but gradient checks deteriorated,
972      so maybe GM/Redi adjoint is now broken.
973    o seaice adjoint
974      * add AREA, HEFF, HSNOW as control variable
975        (should not change lab_sea results)
976      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
977    o pkg/seaice:
978      * added computation of saltFlux in seaice_growth;
979        For time being, sea ice salinity is assumed constant
980        contribution of snow flooding to freshening of sea ice is neglected.
981        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
982        defaults to 0.0 in order to maintain backward compatibility.
983        Typical values for SEAICE_salinity are 4 to 10 g/kg.
984      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
985      * added SEAICE_availHeatFrac, which specifies fraction of surface level
986        heat content used to melt or grow ice
987      * commented out cap of HICE: it helps keep ice thinner
988      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
989      * applied OBCS T/S mask to HEFFM sea ice mask
990    
991    checkpoint59d
992    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
993     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
994     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
995    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
996     and change default value of parameter "GM_Small_Number";
997     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
998       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
999       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1000    o pkg/ecco: cost function when applying pkg/smooth to controls
1001    o pkg/ctrl: add forcingPrecond run time parameter
1002    o pkg/seaice:
1003     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1004     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1005       changes verification/lab_sea
1006     - rearrange implicit part of u-equation in LSR solver to make it easier to
1007       read, understand, and debug. This causes changes at the truncation level.
1008     - fix (serious) bug in the boundary conditions (sign error in the implicit
1009       part) of the LSR solver. Changes all LSR results.
1010     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1011       is initilized with small values - does not change lab_sea results.
1012     - added HsnowFile initialization capability
1013    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1014     initialization of pkg/smooth and application to control vector
1015    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1016    o dependencies: pkg/profiles requires pkg/cal
1017    o pkg/profiles:
1018     - added option ALLOW_PROFILES_GENERICGRID
1019         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1020         that interpolation information (grid points and coefficients) is provided
1021         within the netcdf input files.
1022         -> sample matlab scripts can be found in MITgcm_contrib/gael
1023         that allow you to prepare netcdf input files.
1024     - also modified: cleaner include statements, cleaner error print statements,
1025       cleaner stops when error, and more tests of the netcdf input files consistency.
1026    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1027    o pkg/seaice:
1028     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1029       requires a new routine: seaice_diagnostics_fill.F
1030     - make sure that seaice does not move if not forced (pressure replacement
1031       method, Hibler and Ip, 1995), changes results
1032     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1033     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1034       It is turned off by default (=-1.), because it changes the results.
1035     - make it possible to read AREA from a file, too.
1036    
1037    checkpoint59c
1038    o add S/R and diagnostics for oceanic mixed-layer depth
1039    o move GMRedi call after all vertical mixing schemes (including KPP)
1040    o pkg/thsice:
1041     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1042      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1043    o pkg/obcs:
1044     - bug fix for balance code
1045    o pkg/seaice:
1046      - allow values of SEAICE_elasticParm > 1
1047      - add new parameter SEAICE_evpTauRelax as an alternative
1048        to SEAICE_elasticParm
1049      - make lsr boundary conditions free slip (by default), changes result
1050      - add code for no slip boundary conditions for lsr
1051      - set minimum of zeta to zero (and not 4e8) (changes results)
1052      - add a cap on AREA after advecting AREA if seaice_growth is not called
1053    o change calculation of Visbeck K:
1054      - no longer depend on tapering scheme; instead, compute slope (limited
1055        by GM_maxSlope). this is equivalent to what was comuted before with
1056        clipping or linear tappering.
1057      - fix vertical averaging (wrong by 1/2 level)
1058      - leave the old version (but will not be maintained) within
1059        #ifdef OLD_VISBECK_CALC / #endif
1060      - update output of exp. ideal_2D_oce
1061    o change error catch in calc_r_star to improve vectorization
1062    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1063      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1064    o adjoint:
1065      Re-organized adjoint checkpointing according to Matt Mazloff
1066      (but with modifs/completions/cleanups)
1067      Storing is now bundled into large arrays to optimized I/O
1068      (and second step in cleanup of the_main_loop)
1069    
1070    checkpoint59b
1071    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1072      - export/import (between ocean & coupler) fields needed for ocean DIC.
1073    o pkg/seaice:
1074      - get rid of three more exchanges seaice_calc_viscosities (required
1075        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1076      - bug fix in seaice_ocean_stress (update of lab_sea required)
1077      - reduce loop boundaries to necessary minimum also in seaice_evp
1078      - go back to the old way of computing deltaC/Z as the adjoint likes that
1079        better
1080    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1081      passive tracer to an Age Tracer) + update output.txt
1082    o pkg/exf:
1083      - implement A-grid / C-grid selection for wind-stress input files.
1084      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1085      for now, in exf_bulk_largeyeager04.F only :
1086      - change implementation for case where windspeed + 2. components wind-stress
1087        are read-in. AND use rhoConstFresh to convert evap.
1088    o pkg/seaice:
1089      - use correct EXCH_UV for wind-forcing (on A-grid).
1090      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1091        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1092    o pkg/exf:
1093      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1094      EXF_INTERPOLATION:
1095      - merge global_with_exf/code version of exf_interp_read.F
1096        to the main code ;
1097      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1098        reading the file ; Important: This options needs to be defined to recover
1099        previous code.
1100        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1101      - no longer loose real*8 precision along the way when using exf_iprec=64.
1102    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1103      - change discretisation of evp-solver in order to avoid another exchange
1104        (changes lab_sea) and clean up a little
1105      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1106        help the adjoint (this also changes the results slightly)
1107      - add a few "_d 0" where they had been missing in seaice_evp.F
1108      - cleaning up: remove unused seaice_calc_rhs.F
1109    o pkg/exf: some cleaning-up:
1110      - change various "constants" into runtime parameters
1111      - cleaned-up Large&Yeager04 routine which should eventually
1112        replace exf_bulkformulae.F (changed names of S/R and CPP)
1113        and merged various ALLOW_ATM_WIND options
1114     only used with thsice pkg (in thsice_get_exf.F):
1115      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1116        which are used when useStabilityFct_overIce=TRUE (= the default)
1117      - change default values of ice & snow emissivity and scale downward LW
1118        by ice & snow emissivity.
1119    o pkg/thsice:
1120     fix few little problems, in thsice_calc_thickn.F:
1121      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1122      - melt only laterally if hIce < hThinIce (as the comments say)
1123      and in thsice_extend.F:
1124      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1125      - start to form ice as soon as the minimum ice-volume is reachable.
1126     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1127      and cpl_aim+ocn
1128    o pkg/kpp
1129     - move computation of surface related input fields to KPP into a new
1130       subroutine kpp_forcing_surf.F
1131     - remove wrong (within bi,bj loops) EXCH calls.
1132     - little cleaning (add argument myThid in last position, cvs header ...)
1133     - for now, fix conservation problem by exchanging KPPviscAz (may not
1134       be the best fix)
1135    o pkg/seaice
1136     - check for inconsistent evp parameter/cpp-flag combination
1137     - remove leftover errIO flat for obsolete name list error handling
1138    o OpenAD
1139     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1140    
1141    checkpoint59a
1142    o pkg/seaice: some parameter clarifications and a little bit of clean up
1143    o pkg/thsice: rename run-time parameters:
1144       himin       -> hIceMin
1145       himin0      -> hThinIce
1146       hihig       -> hThickIce
1147       i0          -> i0swFrac
1148       transCoef   -> bMeltCoef
1149       frac_energy -> fracMelting
1150      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1151       with default values (for now) that do not change the results.
1152      remove old version of thsice vars advection in pkg/seaice.
1153    o in FFIELDS.h:
1154      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1155      - make pLoad & sIceLoad always available (but still only used if
1156         ATMOSPHERIC_LOADING is #define).
1157    o pkg/kpp: replaced _KPP_RL with _RL
1158    o bug fixes for vertical diffusivity computations when both KPP and
1159        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1160        are no longer updating the vertical diffusivity array
1161        (passed as argument) but are (re-) setting those arrays.
1162    o pkg/seaice: fix bug in evp solver, while doing that
1163      - change (improve?) discretization of stress computations for both
1164        cgrid-lsr and evp solver
1165      - add a new routine to compute strain rates
1166      - the above changes lab_sea results
1167      - add no slip conditions for evp solver (off by default), lsr-version
1168        may follow
1169      - fix exchange for shear at Z-points (does not change lab_sea)
1170      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1171        (to force the user to pick a time step since there is not "safe" way
1172        of choosing it)
1173      - add principal stress diagnostics
1174      - rearrange fields for evp a little to avoid having to call a: too many
1175        exchanges and b: exchanges for stress trensor components which we do
1176        not have.
1177      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1178        of evp, complete rewrite for lsr case (latter is does not yet work
1179        in all cases)
1180    o pkg/kpp: add code to have mixing in shelf ice caverns
1181      - add myThid to all kpp routines (long overdue)
1182    
1183    checkpoint59
1184    o pkg/exf:
1185      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1186        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1187      - move exf header files from lower_case.h to UPPER_CASE.h ;
1188        add missing cvs Header & Name
1189      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1190      - add namelist param. selectStressGridPosition, exf_monFreq
1191      - retire many _CLIM routines, and remove data.exf_clim
1192        + params moved to data.exf
1193        + climsst, climsss now handled by exf_set_gen, i.e.
1194          climss?period=0 refers to constant field,
1195          climss?period=-12 to monthly forcing
1196      - split up namelists in data.exf
1197    o pkg/seaice:
1198      - remove seaice_exch and seaice_exch_uv
1199      - remove superfluous exchange of theta
1200      - add myThid to seaice_budget_ocean/ice
1201      - add new interface for atmospheric wind forcing (C-grid only)
1202        + new routine
1203        + two new field (taux, tauy for stress over ice)
1204        + removed one global field (DAIRN) for C-grid case only
1205    o pkg/thsise
1206      - 2nd set of modifs for thsice adjoint in conjunction with exf
1207    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1208    
1209    checkpoint58y_post
1210    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1211      vertical diffusivity, similar to that in MOM4; turned on using
1212      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1213      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1214    o Added capability for 3D specification of background vertical diffusion
1215      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1216      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1217      "data" file that contains the 3D vertical diffusivity coefficients.
1218    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1219      - add code within pkg thsice to advect & diffuse sea-ice fields
1220      similar to (and will replace) what has been added in  seaice_advdiff.F,
1221      but: - conserving Mass, Heat & Salt.
1222           - better when using non-linear advection scheme (not yet fully tested)
1223           - can also be used in atmospheric set-up (for now, only the diffusion).
1224    
1225    checkpoint58x_post
1226    o IO option for global-file compact format:
1227      - add options when generating topology (utils/exch2/matlab-topology-generator)
1228      - add I/O capability (pkg/mdsio).
1229      - adapt utils/matlab/rdmds.m to read this format.
1230      for now long-line format not yet supported by pkg/mdsio (& exch2).
1231    o shelfice: add a few diagnostics
1232    
1233    checkpoint58w_post
1234    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1235      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1236      (and replace horiVertRatio in NH code).
1237      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1238                         and tutorial_plume_on_slope (sensitive to truncation)
1239    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1240      directly to drive seaice model (C-grid only)
1241    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1242     - reintroduce computation of wind from stress,
1243     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1244       mass points to avoid tau = 0
1245     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1246    o rdmnc.m: make it work with "global" files created with gluemnc
1247    o rdmnc.m : some improvements in dealing with singleton dimension
1248      (tested on all testreport mnc output files).
1249    o genmake2: disable pkg/profiles if netcdf test fails.
1250    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1251    o move call to cal_readparms up to make calendar parameters/variable available
1252      to all packages
1253    
1254    checkpoint58v_post
1255    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1256      useDynP_inEos_Zc tested.
1257    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1258    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1259      and portions thereof.  See read_cs.txt for description and examples.
1260    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1261      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1262      following the great-circle arc between those 2 points.
1263    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1264      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1265    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1266     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1267     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1268     - still needs work (not working with some options ; efficiency to improve)
1269       and serious testing.
1270     - use this scheme for temperature & salinity in 2 advection test exp.:
1271       advect_xy & advect_xz, respectively.
1272    
1273    checkpoint58u_post
1274    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1275    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1276    o testreport: add option "-skipdir" to skip some test.
1277    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1278      momentum calculation.
1279    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1280    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1281      remove checkpoint.F and the_correction_step.F (no longer used);
1282      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1283    o add option (linFSConserveTr) to correct for tracer source/sink due to
1284      Linear Free surface
1285    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1286    o pkg/thsice: fix reading mnc-pickups
1287    
1288    checkpoint58t_post
1289    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1290    o pkg/mdsio:
1291     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1292       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1293       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1294     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1295     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1296       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1297     - new S/R (to replace MDSWRITEMETA), which allows to write more
1298       informations (variable names, time ...) to meta files.
1299     - modify rdmds.m to give back the meta file content.
1300    o pkg/diagnostics: change vertical interpolation to be safer, and more
1301       flexible (define p-levels to interpolate to in data.diagnostics);
1302      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1303       diagnostic pointer.
1304    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1305    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1306    o fix multi-category seaice:
1307     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1308       SEAICE_MULTICATEGORY
1309     - fix short wave heat flux
1310    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1311       and allow to use EVP solver. Change forward lab_sea: test both EVP
1312       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1313    o Initial check-in of lab_sea adjoint
1314      (very similar to natl_box_adjoint/code_seaice)
1315      * used C-grid and EVP solver
1316      * used KPP, GM/Redi
1317      * uses inAdExact=.TRUE.
1318      * gradient checks fail for both ADM and TLM
1319        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1320        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1321        issue is related to forward mismatch between g77 an ifort
1322    o pkg/seaice: overhaul of thermodynamics
1323     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1324     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1325     - move a few global fields out of SEAICE.h into seaice_growth.F and
1326       make them 2D (FICE/QNETO/ ...)
1327     - remove FO (it is the same as QNETO)
1328     - introduce a few local fields to avoid modifying external fields such
1329       as atemp, etc.
1330    
1331    checkpoint58s_post
1332    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1333      changed exf_set_gen.F so that
1334        genperiod=0 means input file is one time-constant field and
1335        genperiod=-12 means input file contains 12 monthly means
1336    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1337      this affects truncation error ; generate new output file for exp. which
1338      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1339        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1340        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1341        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1342        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1343        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1344    o start implementation of deep-atmosphere and anelastic formulation
1345    o verification: remove 2nd copy of input files and use script "prepare_run"
1346      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1347    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1348    o profiles: fix for multithreaded case
1349    
1350    o diagnostics: rename few diags:
1351      s/'PRESSURE'/'RCENTER '/g
1352      s/'TICE    '/'oceFreez'/g
1353      s/'TAUX    '/'oceTAUX '/g
1354      s/'TAUY    '/'oceTAUY '/g
1355      s/'SWFLUX  '/'oceQsw  '/g
1356      s/DIFx/DFxE/g
1357      s/DIFy/DFyE/g
1358      and add few ocean-forcing diagnostics:
1359      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1360    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1361      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1362      as actual snow thickness.  It now refers everywhere to effective snow
1363      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1364    
1365    checkpoint58r_post
1366    o modifications to pkg/seaice/growth.F, which change results of
1367      lab_sea experiment: fixes pertain to melting snow over open water, to
1368      masking EVAP under sea ice, and to using the correct AREA variable for
1369      computations of EVAP, PRECIP, HSNOW, and GHEFF
1370    o add ability to read bathy, salt, and theta using MNC (off by def)
1371    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1372      both are turned off by default and do no change any results
1373    o seaice advection with pkg/thsice: a step toward the use of non-linear
1374      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1375    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1376      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1377      in natl_box (affects results @ truncation level: update output.txt)
1378    o multi-threading and IO:
1379      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1380      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1381        (needed to work with SingleCpuIO): tested in all verif. exp.
1382    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1383      affects the results (but none of the verification test uses this scheme).
1384    o Adding some pkg/diagnostics capability to pkg/seaice
1385      (will certainly be subject to changes)
1386    o ctrl: adding new control variables:
1387      lwflux, lwdown, evap, snowprecip, apressure, runoff
1388    
1389    checkpoint58q_post
1390    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1391      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1392      high_res_cube configuration by 4% on Columbia.
1393    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1394      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1395      dynamical allocation (seems to work in multi-threaded).
1396    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1397      single CPU io) so that TAF does not have to see EESUPPORT.h
1398    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1399    
1400    checkpoint58p_post
1401    o obcs: stop if obcs is used with useCDscheme = .true.
1402    o shelfice:
1403     - fix a sign error so that no slip at shelfice interface works
1404     - remove stop for combination non-hydrostatic code and shelfice. That does
1405       not mean, that the results are correct, but at least they are numerically
1406       stable
1407    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1408    o added adjoint exch routined for all exch*3d* routines
1409      and updated flow directives
1410    
1411    checkpoint58o_post
1412    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1413      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1414    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1415      and clean-up reading/writing of pickup files.
1416    o fix local version of read/write pickup (NH part) in rotating_tank/code
1417    o simplify EXCH interface:
1418     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1419     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1420    o added the regrid package
1421    o shelfice:
1422     - add a simple boundary layer scheme to reduce noise
1423     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1424    
1425    checkpoint58n_post
1426    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1427       local variable (not in common block).
1428    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1429      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1430      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1431        to work with SingleCpuIO.
1432    o add "_d 0" to real constant of pkg/cfc subroutines ;
1433       update exp. cfc_exemple & tutorial_cfc_offline output files.
1434    o multi-threading and IO:
1435      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1436        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1437      - barrier before and after reading.
1438      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1439      - avoid using MDS_WRITELOCAL for LAND pkg output.
1440      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1441        common-block variables ; Allows multi-threading with master-thread IO.
1442    o change default MAX_NO_THREADS from 32 to 4 ;
1443      and stop cleanly when MAX_NO_THREADS is too small.
1444    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1445    
1446    checkpoint58m_post
1447    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1448       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1449    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1450       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1451       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1452    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1453        add MITgcm_tutorials (= code + all the tutorials)
1454    o ecco, option to compute cost for total ssh (mean+anom)
1455    o consistent with addition of ptracer and ssh in pkg/profiles
1456    o profiles: adding ptracer and ssh
1457    o testreport: change multi-test output-file name
1458      (from output.txt.{name} to output.{name}.txt)
1459    o profiles: now ok for mutli-tiles case
1460    o seaice: add 4 parameters for different advection schemes for area,
1461      (effective) seaice thickness, enthalphy, and snow height. Their default
1462      is the standard parameter SEAICEadvScheme
1463    o calc_gw:
1464     - add cosFacU in zonal viscous flux (harmonic.visc.).
1465     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1466       of tutorial_plume_on_slope.
1467    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1468    o calc_gw: true flux-form, account for horizontal grid spacing.
1469      update rotating_tank results, but not plume_on_slope (affected at
1470      truncation level, 11 digits).
1471    
1472    checkpoint58l_post
1473    o calc_gw:
1474     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1475     - remove side-drag for now (need to fix it); update plume_on_slope results.
1476     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1477    o commit code to make SST/SSS weights spatially variable
1478      (based on either variable in-situ or variable initial T/S weights)
1479    o pkg/ecco:
1480      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1481        now based on horizontally varying weights wthetaLev, wsaltLev
1482      * cost_averagesflags now returns year indices in addition to day, month
1483      * sflux balance is performed on annual basis
1484        (sflxumm, sfluxmm2, bal_sfluxmm)
1485      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1486        including separate counting and multipliers
1487    o pkg/rbcs
1488      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1489    
1490    checkpoint58k_post
1491    o testreport:
1492     - always build in dir. "build" (if not there, mkdir build instead of building
1493       & running in input)
1494     - run in dir run (if it exists), in build otherwise.
1495     - call prepare_run (if input/prepare_run exists)
1496     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1497    o pkg/exf modifications to interpolation and rotation routines for more
1498       reasonable treatment of North Pole singularity: for tracers North Pole
1499       value is set to northernmost zonal-mean value, for zonal velocity it is
1500       set to zero, and for meridional velocity it is set to northernmost value.
1501    o pkg/exf/exf_check_range.F
1502     - add tile index to diagnostics and move stop statement to the very
1503       end of the routine.
1504    o pkg/diagnostics: (diagnostics_main_init.F)
1505      define title of isomorphic variables according to the current config.
1506    o pkg/thsice with pkg/seaice dynamics:
1507    - fix domain of computation (interior only, required for exf) and do exchanges
1508    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1509    o towards a standard way of dealing with multi-threading in MONITOR
1510      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1511    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1512       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1513    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1514    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1515    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1516       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1517    o tracer advection:
1518     - clean-up and simplify calc_common_factors.F
1519     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1520       advection subroutine (but still not used within DST advection S/R)
1521    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1522    
1523    checkpoint58j_post
1524    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1525      from file (collects calls previously in FORWARD_STEP)
1526    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1527    o adjoint store dir. adjusted accordingly
1528    o genmake2
1529      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1530    
1531    checkpoint58i_post
1532    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1533      on wind stress (SEAICEstressFactor defaults to 1.)
1534    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1535      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1536    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1537      on CS-grid: no longer loosing mass.
1538    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1539    o pkg/ggl90: fix sloppy output and fix a bug
1540    o pkg/seaice: added SEAICEuseEVPpickup parameter
1541      - Set to false in order to start EVP solver with
1542        non-EVP pickup files when using SEAICEuseEVP
1543      - fix sign error in diffusion in seaice_calc_rhs
1544    
1545    checkpoint58h_post
1546    * Modifications for bottom topography control
1547      o replace hFacC by _hFacC at various places
1548      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1549      o add non-self-adjoint cg2d_nsa
1550      o update autodiff support routines
1551      o re-initialise hfac after ctrl_depth_ini
1552      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1553    * Adding verification for 5x5 box (4-layer) bottom topography control
1554    
1555    checkpoint58g_post
1556    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1557       used for mean seasonal cycle, mean diurnal cycle); add an example
1558       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1559    o pkg/ggl90:
1560      - add parameter (minimum surface kinetic energy)
1561      - fix bug (avoiding division by zero)
1562    o couple pkg/thsice to pkg/seaice:
1563      - modify advection in seaice to accomodate new scalar fields to be advected
1564      - only muliDimAdection scheme work with seaice/thsice
1565      - mapping of thsice-variables to seaice-variables, back and forth
1566      - does not break the verification experiments, but does not give the
1567        desired results either
1568    o pkg/seaice
1569      - make (default) second order advection a bit less confusing?
1570    
1571    checkpoint58f_post
1572    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1573      to pkg/seaice):
1574      - new routines thsice_map_exf and thsice_get_exf provide the interface
1575      - add an additional formal parameter to thsice_solve4temp
1576    o pkg/exf:
1577      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1578      - correct Stefan-Boltzmann constant
1579      - new parameter for longwave surface emittance
1580      - separate some stuff from exf_bulkformulae into new routines  
1581        exf_radiation, exf_wind
1582      - add new parameters and constants: longwave emissivity for ocean, ice
1583        and snow, evaporation parameters over ice
1584      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1585        either wind from stress or stress from wind
1586    o pkg/thSIce:
1587    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1588    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1589       and THSICE_CALC_THICKN
1590    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1591    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1592      to make debugging easier.
1593    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1594    o pkg/bulk_force:
1595      - clean-up comments and parameters ;
1596      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1597    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1598      generate new output for test-experiment: aim.5l_cs.thSI
1599    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1600      testreport accordingly
1601    
1602    checkpoint58e_post
1603    o SEAICE_CGRID adjoint done
1604    o R_STAR adjoint implemented.
1605      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1606      * need to sort out init. of h0facc, etc.
1607    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1608      to be able to use it in pure forward.
1609    
1610    checkpoint58d_post
1611    o upgrade simple test-experiment to tutorial example:
1612     step.1: duplicate the experiment and (step.2) will remove the old copy.
1613      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1614      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1615      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1616      tutorial_global_oce_biogeo    <- copy of dic_example
1617      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1618      tutorial_plume_on_slope       <- copy of plume_on_slope
1619      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1620      tutorial_global_oce_optim     <- empty for now (David ?)
1621      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1622     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1623    o correct a sign problem in cost_scat.F
1624    o obcs and ptracers: fix boundary conditions for advections schemes
1625      with larger stencil
1626    o thsice adjoint: start
1627    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1628      completeness
1629    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1630      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1631    o ptracers adjoint:
1632      * avoid extensive recomputatations
1633      * fix missing re-init. of gptr (missed by TAF)
1634    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1635      me to turn off the excessive output to STDOUT that this package produces
1636    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1637      and add those terms in Vector-Invariant formulation.
1638    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1639      if the control period (xx_hfluxperiod etc) is 0
1640    o in profiles pkg, clean routines and fix details
1641    o in ecco pkg, reading ssh data:
1642      fix problem in case the model does not start at iter0=0
1643    o fix mnc-pickup/restart for ptracers
1644    o new package prifiles:
1645      code to compute profile-based cost by Gael Forget
1646      (modifs in ecco, ctrl, autodiff)
1647    o Benign bug fix in initialization (spotted by M. Mazloff) of
1648      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1649    
1650    checkpoint58c_post
1651    o adjoint: finish NLFS adjoint and provide reference output in
1652      verification/global_ocean.90x40x15/results_ad_nlfs
1653    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1654      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1655      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1656      with SEAICE_CGRID defined.
1657    o move calendarDumps from "data" to "data.cal" and clean-up the code
1658      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1659    o add useEXF & useCAL flags (for now, set in hard-coded way)
1660    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1661      (were missing in NH mode, and wrong in quasihydrostatic mode).
1662      waiting for Chris updated version of calc_gw to add those CALLs.
1663    o fix bug in quasihydrostatic S/R ;
1664      add a test for this option: global_ocean.90x40x15.qshyd
1665    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1666      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1667    o add on/off flag useOffLine for package OFFLINE
1668    o seaice:
1669      - modify advection so that it works also on the C-grid
1670      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1671        problem in multi-tile runs with C-grid
1672      - add flags for clipping ice velocities and/or masking solver forcing
1673      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1674        C-grid solver
1675      - added a few comments to seaice_diffusion.F
1676      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1677        are now exclusive)
1678      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1679        required re-ordering the code a little:
1680       + make DAIRN global variable (defined in SEAICE)
1681       + move computation of the viscosities eta and zeta into a new separate
1682         routine (because I need to recompute them in seaice_ocean_stress.F)
1683    
1684    checkpoint58b_post
1685    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1686      update output.txt of exp. aim.5l_cs.thSI
1687    o various mnc cleanups and improvements:
1688      + shrink lookup tables by factor of ~4
1689      + better error reporting when running out of lookup space
1690      + able to handle longer path/file names (up to 500 chars)
1691    o adjoint:
1692      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1693      - TBD: "hidden" mom_vecinv recomp. in dynamics
1694    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1695     (allow to differentiate between forcing components using new integer flags:
1696      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1697     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1698    o ecco
1699      - enable trend removal from SSH anomaly obs.
1700    o adjoint
1701      - a fix for PmEpR when #undef EXACT_CONSERV
1702      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1703      - try to fix "hidden" recomp. in forward_step for NLFS
1704        (NLFS seems broken sometimes after I checked it in)
1705    o seaice:
1706     - add c-grid version of the dynamic solver:
1707       + three new routines that are the c-grid substitute lsr, dynsolver
1708         and ostres
1709       + put a few fields that were local to dynsolver into global common
1710         blocks, so that I can move the computation of stresses etc into
1711         seaice_lsr (saves coding but may break the adjoint).
1712     - replace more hardwired parameters by runtime parameters
1713     - add ice masks that mask the rhs of the implicit solvers where there
1714       is no ice (commented out in seaice_dynsolver, because i am not sure
1715       if this works properly), eventually this should replace the clipping
1716       of ice velocities in seaice_dynsolver to +/-40cm/s.
1717    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1718      include it only where its needed
1719    o move balancing of fluxes before the call of external_forcing_surf
1720    o seaice:
1721      - correct units of turning angles (now they are really in degrees)
1722      - move computation of GWATX/Y out of main routine into dynsolver
1723      - initialize GWATX/Y in seaice_init
1724    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1725      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1726    o seaice: add runtime flags for turning angles (default to zero)
1727    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1728      and trend from exf forcing and ctrl control adjustments
1729    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1730      (since checkpoint57x_post)
1731    o change the default rotation period to 86164.s = the Earth rotation
1732    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1733      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1734    o seaice advection: add code for choosing between the default (2nd order
1735      central differences) and multiDim advection schemes provided by
1736      pkg/generic_advdiff
1737    o seaice:
1738      - removed all references to SEAICE_GRID.h fields from
1739        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1740        (cubed-sphere configuration will change a little)
1741      - grid computations in seaice_init are obsolete now.
1742      - cleaned up code a little so that is easier to read (hopefully).
1743      - added new (better?) discretizations of default advection and diffusion
1744        (turn on with SEAICEuseFluxForm)
1745      - replace 1 in 3d global fields by kSurface in growth.F
1746      
1747    checkpoint58a_post
1748    o seaice:
1749      - bug fix in advect.F
1750    o shelfice:
1751      - separate shelfice load anomaly from pload (breaks with time
1752        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1753        Its default is 0., but it may be computed more cleverly from (unknown)
1754        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1755        done offline. A good approximation of the pressure load anomaly is
1756        necessary to avoid large initial adjustment processes underneath
1757        deep-reaching shelfice.
1758      - small fix in ISOMIP shelfice_thermodynamics
1759      - add more sophisticated thermodynamics of Hellmer (1989), this is
1760        now the default
1761      - give a few constants more intuitive names
1762    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1763      if bulk formulae are used in long integration (especially EmPmR). Turn
1764      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1765      if balancePrintMean, the imbalance that is substracted is printed to
1766      STDOUT.
1767    o fix bug (typo) in obcs_apply_eta.F
1768    o add a new package shelfice which enables us to model the circulation
1769      underneath shelf-ice with draughts of hundreds of meters.
1770     - works
1771     - to do: + include improved thermodynamics
1772              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1773                instead of new field kTopC
1774              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1775                instead of new field R_shelfIce and new code in ini_depth.F
1776                and ini_mask_etc.F?
1777              + adjust vertical mixing schemes?
1778    o seaice pkg:
1779     - add a cpp-flag to include a simple formula for a salinity dependent
1780       freezing point of sea water at the surface
1781     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1782       meridional stresses are now different (and hopefully correct)
1783    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1784       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1785       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1786    o pkg/diagnostics: add options and parameters for regional-statistics
1787       diagnostics ; define regions by reading a region-mask from a file
1788       (might add other options later)
1789    o pkg/bulk_force:
1790     - add option and parameters to use AIM surface-flux formulae.
1791     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1792       others forcing fields (defined in PARM05, parameter file "data") are loaded
1793       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1794     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1795     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1796     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1797       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1798     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1799    
1800    checkpoint58
1801    o add "--embed-source" option to genmake2 which, when the supporting
1802      tools can be compiled (as determined by genmake2) will turn on the
1803      embed_files package which then embeds the entire MITgcm source code
1804      (*.[fFhc] + Makefile) used for the build within the executable
1805      - requested by CNH but off by default
1806      - adds a paltry <9MB to the mitgcmuv executable in most cases
1807      - only writes the output when useEMBEDSRC in eedata is true
1808    o clean up 3-dim. relaxation codes:
1809      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1810      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1811      * Thanks to Tom Haine for testing!
1812    
1813    checkpoint57z_post
1814    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1815      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1816    o fix the pickup behavior for obcs in combination with ptracers
1817    o fix a bug in ptracers_external_fields_load
1818    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1819      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1820    o transfered surface NH pressure to eta field (if exactConserv).
1821  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1822       and update lab_sea output.txt file.       and update lab_sea output.txt file.
1823    o completing 3-dim. relaxation code: additional term
1824         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1825      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1826      * At compile time, in "EXF_OPTIONS.h" set
1827          #define  ALLOW_CLIMTEMP_RELAXATION
1828          #define  ALLOW_CLIMSALT_RELAXATION
1829      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1830          tauThetaClimRelax3Dim = 15552000.0,
1831          tauSaltClimRelax3Dim  = 15552000.0,
1832      * 3 cases:
1833          1) Use a constant-in-time 3-dim. field
1834          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1835          3) Real-time relax. to time-evolving prescribed field
1836    o Adding Laplacian-type smoothness constraint on
1837      initial and boundary (forcing) controls (ic, bc)
1838      * enable at compile-time via
1839        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1840      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1841      * Absolute scale somewhat unclear so far
1842      * no area weighting was included since no other cost term does so far
1843    
1844  checkpoint57y_post  checkpoint57y_post
1845  First step for a NLFS adjoint  First step for a NLFS adjoint
# Line 806  o add two new packages Line 2640  o add two new packages
2640    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2641    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2642      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2643      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2644  o add offline package  o add offline package
2645  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2646    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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