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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1136 by jmc, Mon Jun 29 22:47:32 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 adding precip control xx_precip  o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
8  o moved ptracer ctrl index 17 -> 32    and generate new output (for the 2 tests) using default rotationPeriod.
9    o pkg/exch2:
10      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
11        (was already the case with AUTODIFF_EXCH2 defined)
12      - add bj in exch2 arrays and S/R.
13      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
14        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
15    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
16      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
17        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
18      - verification experiment natl_box.longstep
19    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
20      allow different versions of ifort (8 or 9) and different versions
21       of mpi (mpich or mpich2) to be used with the same optfile.
22      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
23       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
24    o pkg/seaice:
25      fix previous modif (3-level field removed) for old-pickup reading
26    
27    checkpoint61r
28    o pkg/seaice:
29     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
30      1. introduce fields for time step (N-1)
31      2. do not use levels 2 and 3 anymore (but keep them)
32      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
33         includes changes to pkg/thsice/thsice_get_velocity.F,
34         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
35         pkg/obcs/obcs_apply_uvice.F.
36     - completely remove code for leap-frog time stepping for second order
37       advection
38     - adjusted adjoint accordingly;
39       gradient checks have improved by an order of magnitude!
40    
41    checkpoint61q
42    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
43     - the boundary conditions along open boundaries are unclear, because the
44       associated masks are set to zero and are thus treated as closed when
45       applying the slip-boundary conditions.
46     - move initialisation of grid variables from seaice_init_varia to _fixed
47    o adding doc/diags_changes.txt
48    o model/src:
49      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
50       to avoid "_diags" naming if no relation to pkg/diagnostics.
51      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
52       file and only call PLOT_FIELD_XYZ if debugMode=T.
53      remove few PLOT_FIELD_XY calls outside initialisation.
54      remove few unnecessary BARRIER.
55    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
56      of salt_plume package in Southern Ocean
57    o pkg/thsice:
58     - fix hOceMxL in overlap (needed for sea-ice advection);
59       update output of experiment global_ocean.cs32x15.icedyn.
60    o pkg/seaice:
61     - make the (placeholder-)tracer IceAge a little more meaningful
62      by avoiding ridging of age due to convergent ice flow
63     - add diagnostics for surface temperature, atmospheric and oceanic
64       heat flux, and atmospheric and oceanic ice growth
65    
66    checkpoint61p
67    o eesupp (global_max & global_sum):
68     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
69     - remove starting & endding barrier (no longer needed)
70    o pkg/mdsio, writelocal:
71       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
72       (remove the STOP): uses shared buffer IO to store data from all threads
73       and then let master-thread write nThreads tiles.
74    o pkg/mdsio (read/write field):
75     - tiled IO done in 1 piece (all levels at a time);
76     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
77     - multi-threaded: allow to read/write local (non-shared) array
78       (was already working with singleCpuIO ; now works also without);
79       => no longer needs barrier call after reading a file (added inside
80       mds_read/write field).
81     - move barrier calls outside gather/scatter_2d to mds_read/write_field
82    o pkg/obcs/exf
83      - exf_getffieldrec.F: add a few ". _d 0" and
84                            add code to catch the case fldperiod = 0.  
85      - obcs_precribe_read.F: change if statements so that they match
86                              the variable type (_RL)
87      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
88        exf_iprec) as part of namelist EXF_NML_01
89    o pkg/mdsio:
90      - read/write tiled (local) files: read/write 1-level tile chunk at a time
91        (instead of segment of length sNx); expected to speed up tiled IO.
92    o pkg/exch2:
93      - take buffer copy from/to array out of S/R exch2_send/recv into new
94        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
95        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
96      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
97      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
98        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
99        including Topology header file (and common blocks).
100      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
101        remove 2nd exch call in exch2_s3d_rx (no longer needed).
102      - document S/R arg. list (+ update some comments)
103    o pkg/seaice:
104      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
105        temperature and humidity over sea ice based on climatological values.
106      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
107        of LSR (this change is expected to change the results slightly because now
108        it uses slightly difference moduli from the second last LSR solution, but
109        that is more consistent with the stress computations; this part of the code
110        is not tested in the verification experiments)
111      - fix diagnostics for flux of ice in case of B-grid
112      - turn strain rates eij and press into global fields within global
113        common block in SEAICE.h for more straighforward diagnostics
114      - fix diagnostics for principal stress components, press, zeta, eta
115        to give something meaning full
116    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
117      new output (all 4 tests) using default rotationPeriod.
118    o pkg KPP:
119      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
120      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
121        and normal grid from 1 to Nr)
122    o Fix computations of L4rdt in mom_calc_visc.F
123    o eesupp:
124      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
125      should be called before a "stop" if we know that all process are going
126      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
127    
128    checkpoint61o
129    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
130    o model/src/ini_curvilinear_grid.F:
131       compute angleSin/CosC when they are not read from a file
132    o pkg/seaice:
133       add pseudo time stepping for LSOR
134    o pkg/exch2:
135       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
136    o pkg/seaice:
137       Adding separate sea ice albedo, drag coefficients, and HO in Southern
138       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
139    o SingleCpuIO:
140       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
141    o pkg/seaice:
142       put exchanged variable in (local) common block for MPI+Multi-Threads
143       to work (necessary with exch1, and for now with exch2 too).
144    o verification: to get more experiments tested with mpi, mth and mpi+mth,
145      change tiling of:
146       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
147       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
148      update output of exp:
149       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
150       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
151      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
152                       (note: output.txt generated on faulks using only 1 tile)
153    o eesupp & mdsio (SingleCpuIO):
154     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
155       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
156       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
157     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
158     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
159       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
160    o pkg/exch2:
161     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
162       read parameter file "data.exch2" if it exists; otherwise try default regular
163       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
164     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
165       with new code (not to be used, just as a backup solution).
166     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
167       in utils/exch2/input.
168    
169    checkpoint61n
170    o eesupp & mdsio (SingleCpuIO):
171      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
172        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
173        receive real*4 array (instead of real*8) to read/write 32.bit files.
174        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
175         and remove new mapping S/R)
176    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
177      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
178        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
179        when using exch2. Add S/R to map global io-buffer to global model array.
180      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
181    
182    checkpoint61m
183    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
184      and add 3 other S/R for other types (R4,R8,RS).
185      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
186    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
187     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
188     - reduce number of macro definitions (keep only those which are used);
189       can always call directly the corrresponding S/R if needed.
190     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
191       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
192     Fixed wrong type of arg in:
193       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
194       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
195     To fix: global_sum of var in common block is wrong (multi-threaded) in:
196       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
197     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
198    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
199      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
200    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
201    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
202      edges are closed (zero depth); might happen with "blank tiles";
203      for now, disabled if using OBCS.
204    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
205      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
206    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
207      to reduce length of 1.D array print in STDOUT.
208    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
209      + use 48 tiles (16x8): this will allow to test "blank tiles".
210    o start to test MPI + multi-threaded (change testreport to skip tests
211      where number of tiles do not match).
212    o genmake2: add option "-omp" to turn on Open-MP ;
213      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
214    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
215      and keep the original tile numbering. Note: compatible with old
216      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
217    
218    checkpoint61l
219    o Overlaps had been forgotten in calculating ijk keys : fixed
220    o fix cyrus makedepend for gcc 4.4
221    o experiment fizhi-cs-aqualev20:
222      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
223      and generate new output. Note: new output is much closer to the old
224      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
225      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
226    o pkg/fizhi:
227     - change to avoid indices going deliberately over array-bounds
228     - remove unnecessary MPI stuff
229     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
230     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
231       does not go over array-bounds and therefore returns reliable output.
232     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
233       this S/R has 4 output arguments, which are used inside "get_alarm";
234       when it is called with the same variable "ndum" in place of several
235       output arguments, this produces weird side effect inside "get_alarm"
236      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
237       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
238       address) and produces error.
239    o tools/gemake2: (March 27-29 2009)
240      with option "-mpi": link *_mpi files from "MODS" dir (this is what
241      testreport does).
242    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
243    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
244       update lab_sea.lsr & lab_sea.salt_plume results
245    o pkg/seaice:
246      Major overhaul of the LSOR solver: change discretization from original
247      finite differences to finite volume. The old routine is still in the
248      file seaice_lsr.F and can be turned on with the CPP-flag
249      SEAICE_OLD_AND_BAD_DISCRETIZATION
250      Along with this change, the discretization of the strain rates is changed.
251      The same flag turns on the old discretization in seaice_calc_strainrates.F
252      All verification experiments with seaice are affected (except for
253      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
254      results by setting the above flag.
255      Further changes involve changes in defaults:
256      - ALLOW_FLOODING is defined and turned on by default
257      - SEAICEadvSnow = .true. is now the default
258      - SEAICEadvSalt = .true. is now the default
259      - SEAICEadvAge  = .true. is now the default
260      - SEAICE_clipVelocities  = .false. is now the default
261                                         (as per J. Zhang's recommendation)
262      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
263        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
264      - seaice_growth: replace computation of UG by a simple copy from wspeed
265    
266    checkpoint61k
267    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
268      seaice_lsr: fixed a few metric terms,
269                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
270                  add more debugging diagnostics
271      seaice_evp: removed superfluous many metric terms of FV discretization
272                  of stress divergence
273                  affects lab_sea, lab_sea.hb87
274      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
275                  of stress divergence for non-evp solver
276                  (this part is not tested anywhere)
277      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
278                  they were effectively only half slip
279                  affects lab_sea.hb87
280      updated all relevant verification experiments (except lab_sea//output_adm.txt
281        which was left over, but fails at level 7 & 6)
282    
283    checkpoint61j
284    o pkg/seaice: turn a few hard wired parameters into run time parameters
285    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
286      time in seconds as promised by the usints in seaice_monitor and exf_monitor
287    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
288      that are not cubed-sphere grids
289    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
290    o pkg/ctrl:
291      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
292    o non-hydrostatic (calc_gw.F):
293      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
294      update output of exp. global_ocean.cs32x15.viscA4
295    o remove backward compatibility for thetaMin,phiMin
296      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
297    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
298      interpolated wind field not only for curvilineargrid=.true., but also
299      for a rotated grid (rotateGrid=.true.)
300    o pkg/exf: add capability to bypass interpolation for runoff
301      by setting yet another CPP-flag
302    o eesupp/src, B-grid exchange:
303      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
304    o autodiff
305      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
306      allows to switch to single-prec common blocks;
307      corresponding switch occurs in tamc.h, integer isbyte
308      TAF store directivs "byte" and "kind" seem equivalent;
309      Most tamc.h have been updated correspondingly.
310    
311    checkpoint61i
312    o autodiff:
313      fix autodiff_sore/_restore indices for obcs
314      (spotted by I. Hoteit, M. Mazloff)
315    o pkg/autodiff, pkg/ctrl:
316      Add flag to reduce all tapelev I/O to single-prec.
317      In data.ctrl set
318        doSinglePrecTapelev = .TRUE.
319    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
320      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
321    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
322      real fresh water flux (not yet)
323    o pkg/mdsio & rw:
324     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
325     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
326    o pkg/flt:
327     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
328       init_fixed & ini_varia.
329     - clean-up & simplify linear interpolation S/R:
330       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
331     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
332     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
333     - add vert. coordinate & horiz. indices to output files.
334     - change vertical position in initial condition, from index to depth [m].
335     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
336       (easier to get to a curvilinear grid) ; delX,delY no longer used.
337    o pkg/ggl90: a few modifications:
338     - fix bottom boundary condition, and interpolation of KappaE
339       near top and bottom
340     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
341     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
342     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
343    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
344      (maintain temporary backward compatibility, until next checkpoint)
345    
346    checkpoint61h
347    o pkg/diagnostics with "periodic averaging diagnostics":
348      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
349    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
350    o pkg/obcs: fix loop ranges for balancing code
351    o pkg/flt:
352     - improve criteria for finding which tile owns a float.
353     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
354    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
355      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
356      with ocean biogeo)
357    o pkg/flt:
358     - do some cleaning and fix the restart ;
359     - add output.txt in flt_example/results to get this pkg tested.
360    o genmake2: add an EXTENDED_SRC option and flag.
361       for now, cannot be turned on on command line (only through genmake_local)
362    o pkg/mdsio: read/write vector:
363     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
364     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
365       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
366     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
367      (drop to 4 digits matching for grad). But this test does not look very
368      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
369    
370    checkpoint61g
371    o pkg/flt:
372      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
373       + make OPTIONS file more standard.
374      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
375      - fix _BYTESWAPIO CPP-Flag
376      - standard reading of file-parameter "data.flt"
377      - fix argument list of S/R FLT_RESTART
378      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
379    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
380    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
381      a still unfixed compiler/optimization bug
382    
383    checkpoint61f
384    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
385      update results of global_ocean.cs32x15.icedyn test.
386    o move getcon.F from model/src to pkg/fizhi.
387    o pkg/exf: add parameter for extrapolation of temp up to the surface
388       and option to prevent negative evap (in bulk_largeyeager04 only).
389    o Prather Advection scheme: fix tracer conservation for divergent flow
390      (e.g., when using NonLin Free-Surface).
391    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
392    o gmredi (Visbeck-variable-K):
393     - add more parameters to Visbeck-variable-K.
394     - use a 5 points average for dSigmaR in Visbeck-K calculation
395       (more "homogenous": same stencil and same weights as in dSigmaH)
396     - update output of ideal_2D_oce experiment.
397    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
398      (#undef REAL4_IS_SLOW)
399     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
400       coordinate variable
401     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
402       (surface forcing fields), removes some of the functionality
403     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
404     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
405       probably not all: copy _RS surface flux fields to RL field before
406       calling DIAGNOSTICS_FILL
407     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
408       real*4 (CALL EXCH_*_RS) versions.
409     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
410       (generate new output).
411    
412    checkpoint61e
413    o gmredi (Visbeck-variable-K):
414      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
415      - change computation of Visbeck-K where Slope > Smax :        
416        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
417        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
418    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
419      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
420    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
421    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
422      does not become too large (to avoid precision problems in implicit-diffusion
423      solver); update ideal_2D_oce output.
424    o pkg ggl90:
425      - in ggl90_cal.F: compute only one set of visc/diff, used to
426        step forward TKE/T/S/momentum
427      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
428        have Prandlt =1)
429    o gmredi (fm07):
430      - add lower limit on Transition layer thickness + lower limit on 1/lambda
431      - allow to set few more params from data.gmredi
432    o pkg ggl90:
433          - add missing sqrt(2) factor in computation of mixing length
434            scale in ggl90_calc.F
435            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
436    
437    checkpoint61d
438    o adjoint modifs
439      - adapt to new field rhoInSitu
440      - allow to revert from StoreDynVars2D, StoreDynVars3D
441        to individual fields
442        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
443    o store 3-D (in-situ) density in commom block (DYNVARS.h)
444     - save 1 rho computation.
445     - no longer modify T & S inland when using down_slope pkg.
446    o gad_som : allow to switch to SOM advection for T & S without corresponding
447      pickup files (using new S/R: MDS_CHECK4FILE).
448    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
449      (for useSingleCpuIO to work in multi-threaded)
450    o pkg/shelfice:
451     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
452       with SHELFICEtopoFile in data.shelfice
453     - move code for reading ice shelf topography and modifying hFacC into separate
454       subroutines of the shelfice package
455     - separate initialisation of "fixed" and "variable" variables
456     - kTopC is not (yet) replaced by kSurfC, although this is possible
457    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
458    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
459      and rename:
460      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
461      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
462    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
463    
464    checkpoint61c
465    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
466      to add mass source/sink of fluid in the interior (3-D generalisation
467      of oceanic real-fresh water flux).
468    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
469    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
470    o new pkg: down_slope
471      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
472      - presently, modify T & S inland (dwnslp_calc_rho.F).
473        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
474      - implementation for ocean in P-coords not tested.
475      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
476    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
477      (to facilitate conversion of oceanic pkg to p-coordinate).
478    o change FIND_RHO to FIND_RHO_2D :
479      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
480    o new pkg: cheapaml
481    
482    checkpoint61b
483    o exch2:
484      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
485      - no longer depend on the order sequence (N,S,E,W).
486      - 3rd exchange no longer needed (tested with 24 tiles).
487      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
488      - exch_UV_A-grid readily available (but not yet tested).
489      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
490      (both are no longer needed) in exch_uv: no effect in forward run; but
491       get truncation error differences with adjoint exch.
492    o exch2:
493     - change index-bounds storage (moved from target to local tile,
494       more intuitive this way) ; rename/remove some variables.
495     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
496    
497    checkpoint61a
498    o exch2/matlab-topology-generator:
499      fix bug in index bounds for N-S internal exchange (hard to tell if this
500      had any effect on the solution).
501    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
502      is exceeded
503    o testreport: modify syntax of awk, so that it works also with
504      awk, and not only with nawk and gawk
505    
506    checkpoint61
507    o autodiff
508      Change default for TAF usage by removing argument '-nonew_arg'
509      This changes TAF subroutine argument list (ordering of active var.)
510      Omission of this flag leads to incompatibility w.r.t. TAMC
511      To restore TAMC-compatibility, need following modifs:
512      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
513      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
514      Tested TAF version is 1.9.22
515      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
516    
517    checkpoint60
518    --->>> This is the last checkpoint for which generating the adjoint
519    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
520    --->>> by default.
521    --->>> Future checkpoints will ommit this flag by default.
522    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
523    o pkg/grdchk: Add gradient check to etan0 perturbations.
524    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
525    o pkg/autodiff: more flexibility in zeroadj.
526      model/src: modifying do_oceanic_phys.F accordingly.
527    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
528    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
529      special setup of gmredi for which the adjoint is stable
530      enough for parameter optimization.
531    o bridging the gap between eddy stress and GM.
532      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
533          along with a change in CPP option (now ALLOW_EDDYPSI).
534      -> when using GM w/ GM_AdvForm:
535          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
536          is applied either in the tracer Eq. or in momentum Eq.
537          depending on data.gmredi (intro. GM_InMomAsStress).
538      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
539      The key modifications are in model/src/taueddy_external_forcing.F
540      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
541    
542    checkpoint59r
543    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
544      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
545      fix option to read coriolis(@ cell-corner) from files with CS-grid.
546    o pkg/mnc: add some attributes to standard 1D-coordinate variables
547    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
548      mass points, when using mnc for output
549      - add runtime parameter (missing_value, missing_value_int) to override
550        default (which is the value of getcon('UNDEF'))
551    o pkg/mnc: prepare mnc for the actual use of missing values with the
552      diagnostics package: small fix in mnc_cw_readwrite.template and more
553      initialisation of never used fields
554      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
555      versions
556    o pkg/thsice/thsice_ini_vars.F added default initial values so that
557      thermodynamics sea ice solver does not blow up when some initial fields
558      are missing.
559    o move from external_forcing_surf.F to ini_forcing.F
560      the p-coord. hack consisting in using pLoad to set phi0surf ;
561      update output of tutorial_global_oce_in_p (affected @ truncation level).
562    o Freshen up a bit hs94.1x64x5, notably:
563      remove rotationPeriod and tRef=5*0. (adjoint only), and add
564      exactConserv=.TRUE.
565    o pkg/generic_advdiff:
566      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
567      applies to files where Temperature & Salinity 2nd Order moments are used.
568    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
569      this uses a dynamically allocated internal state data structure
570      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
571      and requires a fortran 90 compiler
572    
573    checkpoint59q
574    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
575       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
576    o Refresh tutorial_global_oce_biogeo, notably:
577      - change bathymetry (put back seamounts in ACC, use hFacs)
578      - change EOS (POLY3 --> JMD95Z)
579      - use Bryan-Lewis vertical diffusivity
580      - use multidimensional advection
581      - remove old virtual virtual in dic pkg, now done through ptracer pkg
582      - change a couple of parameters in dic pkg
583    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
584    o pkg/obcs: change default to OBCSfixTopo = .true.,
585      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
586      - replace "debugMode" with "debugLevel .GE. debLevB"
587    o implementation of TAF directives for gchem,cfc,dic
588    o remove "exp5" (replaced by tutorial_deep_convection).
589    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
590      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
591      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
592      --> changes results in exp4, seaice_obcs
593    o tutorial_deep_convection :
594      update the set-up and increase resolution and domain size ; start
595      from pseudo initial conditions = output at t=120mn in order to see
596      something happening when running testreport.
597    o pkg/seaice: add os7mp as an advection scheme
598                  add check for advection schemes
599                  add a flag for restoring T and S underneath sea ice
600    o pkg/my82: add netcdf-support and diagnostics
601    o thsice pkg:
602      - Now hsMax limits snow height by turning it into ice following
603        flooding scheme (and now conserving energy)
604      - Slight rewriting of the formula in thsice_calc_thick.F
605      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
606      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
607    
608    checkpoint59p
609    o gchem / dic / cfc :
610      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
611      - add new parameter files: "data.dic" & "data.cfc" ;
612      - various re-arrangement in initialisation & header file ;
613      - fix tutorial_global_oce_biogeo for multi-threaded test.
614    o pkg/dic: test for "pickup_dic" file when restarting ;
615      if no pickup-file, can restart with a re-initialised pH (same as it did
616      before) providing pickupStrictlyMatch is set to False.
617    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
618      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
619    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
620      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
621    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
622     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
623       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
624    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
625       scheme to use for vorticty-term ;
626     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
627       (with default selectVortScheme, return to original discretisation)
628     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
629    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
630    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
631      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
632      also fix diagnostics VISCAHW & VISCA4W.
633    
634    checkpoint59o
635    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
636    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
637      move a few statemens out the main loop into separate loops
638    o pkg/shelfice:
639      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
640        (kg/m^2/s), does not break tests, because in verification/isomip,
641        rhoConstFresh=rhoConst (by accident)
642      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
643      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
644        new file model/src/seawater.F, so that they are available for all pkgs.
645      - convert potential temperature into in-situ temperature. This changes the
646        isomip tests => update tests
647    o add a flag writePickupAtEnd (default=true) to be able to suppress
648      writing a pickup at the last timestep
649    o tools/mpack-1.6 :
650      - disable automake (not working) and autoconf (not needed).
651      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
652        also cleaner with much less compilation warnings.
653    o pkg/profiles:
654      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
655      (for "less than 32 characters name" compiler requirement)
656    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
657      conditions that have a different sampling frequency than S/T/U/V obcs
658    o pkg/diagnostics (stats-diags):
659      - fix global Min/Max in case 1 processor get only empty tiles
660    o genmake2: replace (4 times)
661         make genmake_tc_1.o >> genmake_warnings 2>&1
662      with
663         COMM="$CC $CFLAGS -c genmake_tc_1.c"
664         echo $COMM >> genmake_warnings
665         $COMM >> genmake_warnings 2>&1
666      to make genmake2 always see the value of CC as specified in the optfile.
667    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
668      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
669      - modify verification advect_cs test to test SOM-advection on CS-grid.
670    o pkg/ctrl:
671      - Rewrite of ctrl_map_ini_ecco.F,
672        introducing a generic routine (ctrl_map_ini_gen.F).
673      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
674    
675    checkpoint59n
676    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
677      number in dedicate array "hdiag":
678      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
679        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
680      - many small changes (integer format) for large number of diagnostics
681      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
682        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
683    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
684      usingSphericalGrid, this allows to define the rotated grid coordinates
685      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
686      geographical coordinates according to the inverse of the rotation defined
687      by the Euler angles, so that Coriolis parameter and online-interpolation by
688      exf works with the geographical coordinates on XC/YC/XG/YG.
689      Naturally, this feature does not work with all packages, so some
690      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
691      profiles), because there the coordinates are assumed to be regular
692      spherical grid coordinates.
693    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
694      - introduce isopycnal diffusion coefficient control.
695    o tools/adjoint_options:
696      - additional control vector components.
697    o pkg/mnc: have mnc create marginally meaning full coordinate variables
698      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
699    o pkg/mypackage:
700      - add example of read/write pickup for state-var ;
701      - add entry points to the main code for state-vars diags & write-pickup.
702    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
703      transitions for useExfYearlyFields
704      - add new subroutine that determines the file to read from for
705        use*YearlyFields = .TRUE. and .FALSE.
706      - add a verification experiment to global_with_exf that tests
707        useExfYearlyFields with USE_EXF_INTERPOLATION defined
708    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
709      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
710      subroutines (which could be generated from a template, because they are
711      almost identical), for now they are included in obcs_prescribe_read.F for
712      simplicity
713    o pkg/exf:
714      - add a little more diagnostic to exf_interp_read (in analogy to
715        mds_read_field, can be turned off with debugLevel < debugLevA=1)
716      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
717        ugly but fast by unrolling short inner loops, inserting a unroll=8
718        directive in routine lagran, and splitting a loop and making do while the
719        outermost loop (the latter requires the intoduction of index arrays)
720    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
721    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
722      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
723    o verification/seaice_obcs: updated for restart test and latest options
724    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
725      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
726      for now this is only available for the C-grid code and also within
727      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
728    
729    checkpoint59m
730    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
731      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
732    o gad_som : fix flux output (& diagnostics) to have same units as other  
733      advection scheme fluxes (was previously multiplied by deltaT).  
734    o added verification/seaice_obcs both to test seaice open boundaries
735      and to provide an example matlab scrpt for generating them
736    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
737    o pkg/salt_plume: clean up salt_plume_frac.F to
738      remove redundancy in PlumeMethod 1 and 4
739    o pkg/kpp: added saltplume diagnostics
740    o pkg/obcs and pkg/seaice:
741      - do not set uice and vice to zero when OB*icefile are unspecified
742      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
743      - moved seaice tracer obcs after call to seaice_growth
744    o pkg/salt_plume: added various options for salt plume depth
745      criterion and for vertical distribution of the salt
746    
747    checkpoint59l
748    o pkg/ptracers: new version of ptracers pickup:
749      read meta file and write only fields which are needed to restart.
750      ( same logic as main pickup file ; also using pickupStrictlyMatch )
751    o pkg/seaice:
752      - add timescale for melting due to warm mixed layer as a means of
753        setting SEAICE_availHeatFrac more conveniently
754      - add a CPP-flag/runtime parameter check for flooding algorithm
755      - reformulated availHeat in seaice_growth.F to be independent of AREA
756    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
757      unit changes
758    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
759    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
760      SX vector computer.
761    o pkg/seaice:
762      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
763        seaice forcing fields can now be read only through pkg/exf
764      - removed some unused halos
765    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
766    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
767      or U/VICE from U/VWIND before computing U/VSTRESS
768    
769    checkpoint59k
770    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
771      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
772    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
773      all experiments pass when compile with un-initialised var. checking option.
774    o added pkg/salt_plume
775    o script to test restart (for now, in MITgcm_contrib/jmc_script)
776    o pkg/seaice: new read/write pickup version.
777      read meta file and write only fields which are needed to restart.
778      ( same logic as main pickup file ; also using pickupStrictlyMatch )
779    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
780    o lab_sea.hb87: modify the domain & update output.hb87.txt :
781      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
782      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
783      process. Fixed here by closing the domain at the Northern boundary.
784    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
785    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
786      a set of consecutive levels in/from a 3-D array.
787    o pkg/ptracers:
788      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
789      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
790    
791    checkpoint59j
792    o in pkgs: dic, obcs, offline, rbcs:
793      standard way to compute coeff. for time interpolation between 2 time reccords
794      which retains full precision (& make results less dependent on compiler).
795      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
796    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
797      packages instead of reading ice cover and wind speed separately
798    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
799     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
800      to allow to compile customized code before the update)
801    o cleaning-up:
802      - fix CPP instruction syntax in pkg/obcs
803      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
804        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
805      - fix some threads issue in IO parts.
806    o pkg/dic:
807      - add tons of "_d 0" (--> much better testreports !)
808       and then update outputs of tutorial_global_oce_biogeo
809    o pkg/mom_fluxform:
810      add a special version of momentum advection intended to conserve momentum
811      next to a bathymetry step or a coastline edge. (default = off = #undef)
812    o new read/write pickup version:
813      - for now, only implemented for main (mdsio) pickup file.
814      - write out only what is needed to restart; merge pickup_nh , pickup_ph
815        and main pickup together.
816      - read meta file; read only what is needed to restart; stop if a field
817        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
818        if it make sense (even if the restart is not perfect).
819      - if no meta file, assume that pickup to read corresponds exactly to
820        a pickup that would currently be written.
821      - read pickup written in the old format (until checkpoint59i) if it
822        recognizes an old meta file (no field-list).
823      - add a meta file in exp. which starts from a pickup: 2 cases:
824        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
825         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
826        b) a meta file describing the content of the associated pickup file
827         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
828    o pkg/mdsio & pkg/rw:
829      - new routine to read a meta file ; new set of routine to read
830        Multiple-fields file (with meta file).
831    o added open boundary conditions capability for seaice
832        HSNOW, HSALT, UICE, and VICE
833    
834    checkpoint59i
835    o adjoint:
836      * fix multiDimAdvection adjoint
837        (partial recomputation problem by TAF for fVerT(:,:,kDown)
838        and comlev1 size definition (maxpass vs. max. number of tracers)
839      * verification/global_ocean.90x45x15 adjoint now tests
840        NLFS and multiDimAdvection using DST3 (=30)
841      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
842    o pkg/kpp: add "_d 0" to real constant (if missing);
843      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
844      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
845    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
846      for internal parameters related to restart process (formerly from PARAMS.h)
847      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
848    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
849      as argument. (only atm2d & obcs write_pickup have not yet been updated)
850    o pkg/monitor:
851      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
852      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
853      - account for deep Atmosphere factor and density factor (anelastic)
854    o added open boundary conditions capability for seaice HEFF and AREA
855    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
856      thermodynamics
857      - requires a little reorganization, which affects the testreport results
858        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
859        so that now the conservative form is tested
860      - add a few comments
861    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
862    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
863    o add new diagnostics to seaice: advective, diffusive fluxes (only for
864      multidim-advection, for scheme 2 they are not filled) and transports,
865      thermodynamic growth rates
866    o change units of EmPmR (inside the code, + within coupling interface)
867      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
868      Affects results @ truncation level (cg2d match) and update output of
869       experiments: lab_sea(6), global_ocean.90x40x15(10),
870      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
871      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
872      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
873      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
874    
875    checkpoint59h
876    o pkg/exf:
877      - improve vectorization by moving if-statement out of loops in
878        exf_mapfields, exf_radiation
879      - exf_bulkformulae.F: introduce 2D fields and vectorize code
880    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
881    o testreport:
882      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
883        monitor & update offline_exf_seaice exp. output.
884      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
885    o pkg/seaice:
886      - bug fix in the evp solver: boundary conditions were affected be
887        masking of zMax/zMin (changes results)
888      - minor bug fix in boundary conditions in seaice_calc_strainrates
889        (changes results for no_slip)
890      - seaice_lsr.F: make interpolation of eta dependent on boundaries
891      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
892      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
893        stress formulation and no-slip boundary conditions
894    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
895      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
896    o pkg/seaice: a first HSALT time stepping equation has been checked in
897    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
898      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
899      without requiring DO-IF statements
900    o pkg/thsice:
901      use continuous power-law function for partition of energy between lateral
902      melting/freezing and thinning/thickening ; old code using step function
903      still available with #undef THSICE_FRACEN_POWERLAW
904      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
905    o testreport: change AD testing : check against results/output_adm.txt
906      using same scripts as for forward test.
907    
908    checkpoint59g
909    o adjoint testing: in preparation for changing testreport:
910      - output format: cost and grad written on separated lines
911      - ad output results in directory "results" (instead of "results_ad")
912    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
913    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
914    o pkg/ecco: allow user defined cost function contributions
915    o testreport:
916      Allow to choose (per experiment) the list of tested output variables
917       and the main variable (used to issue a pass/FAIL ) ;
918      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
919      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
920      Also modify printing of summary:
921       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
922       b) echo the list of tested variables in the individual summary.txt of
923          each experiment.
924    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
925      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
926      (but still depend on the tile decompostion of the domain).
927    o pkg/seaice: change a discretization detail to make the B-grid code
928      "more symmetric". This change is likely to remove all "ridges/leads" that
929      where quasi-aligned with the grid in B-grid solutions. It may also be
930      the solution to the stress coupling issues with the B-grid.
931    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
932      remove .cvsignore from input dir. (since testreport no longer run here).
933    o pkg/thsice:
934     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
935     - fix reshaping of sea-ice just after advection:
936       melt all the ice only if ice-volume is too small.
937     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
938       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
939     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
940    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
941      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
942    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
943      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
944      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
945      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
946      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
947      -> update output.txt
948    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
949     this affects truncation error: -> update output.txt of exp:
950      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
951      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
952    
953    checkpoint59f
954    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
955    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
956      a bounded range (in forward mode)
957    o pkg/ecco, ctrl, autodiff and mom_common:
958     internal parameter controls, completements of implementations
959    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
960    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
961      (not seem any difference in testing results).
962    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
963       at face corners.
964    o pkg/generic_advdiff:
965     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
966      loop range indices for computing vertical advection tendency
967      and do the calculation in the interior only (no overlap) ;
968      for now, only implemented for SOM advection (to save CPU time).
969     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
970    o exch2 adjoint
971      First set of changes:
972      - add exch2 hand-written adjoint templates
973      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
974        This will require cleanup in pkg/autodiff/*.F
975        (changed routines currently kept separate in verif. code/)
976      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
977        that used to hide exch2 or cubed-sphere specific code
978        (commented via 'cph-exch2')
979    o pkg/seaice
980      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
981    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
982       output of global_ocean.cs32x15.thsice .
983    
984    checkpoint59e
985    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
986      for B-grid vector (not yet tested) and C-grid vector (<- only used
987      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
988    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
989      (#ifdef ALLOW_SALT_PLUME)
990    o gather_2d/scatter_2d: removed halo regions
991    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
992      scheme and the corresponding test case (under front_relax dir). For now,
993      only available with Skew-flux form and not yet tested in realistic set-up.
994      adjoint: store directives updated, but gradient checks deteriorated,
995      so maybe GM/Redi adjoint is now broken.
996    o seaice adjoint
997      * add AREA, HEFF, HSNOW as control variable
998        (should not change lab_sea results)
999      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1000    o pkg/seaice:
1001      * added computation of saltFlux in seaice_growth;
1002        For time being, sea ice salinity is assumed constant
1003        contribution of snow flooding to freshening of sea ice is neglected.
1004        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1005        defaults to 0.0 in order to maintain backward compatibility.
1006        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1007      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1008      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1009        heat content used to melt or grow ice
1010      * commented out cap of HICE: it helps keep ice thinner
1011      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1012      * applied OBCS T/S mask to HEFFM sea ice mask
1013    
1014    checkpoint59d
1015    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1016     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1017     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1018    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1019     and change default value of parameter "GM_Small_Number";
1020     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1021       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1022       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1023    o pkg/ecco: cost function when applying pkg/smooth to controls
1024    o pkg/ctrl: add forcingPrecond run time parameter
1025    o pkg/seaice:
1026     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1027     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1028       changes verification/lab_sea
1029     - rearrange implicit part of u-equation in LSR solver to make it easier to
1030       read, understand, and debug. This causes changes at the truncation level.
1031     - fix (serious) bug in the boundary conditions (sign error in the implicit
1032       part) of the LSR solver. Changes all LSR results.
1033     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1034       is initilized with small values - does not change lab_sea results.
1035     - added HsnowFile initialization capability
1036    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1037     initialization of pkg/smooth and application to control vector
1038    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1039    o dependencies: pkg/profiles requires pkg/cal
1040    o pkg/profiles:
1041     - added option ALLOW_PROFILES_GENERICGRID
1042         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1043         that interpolation information (grid points and coefficients) is provided
1044         within the netcdf input files.
1045         -> sample matlab scripts can be found in MITgcm_contrib/gael
1046         that allow you to prepare netcdf input files.
1047     - also modified: cleaner include statements, cleaner error print statements,
1048       cleaner stops when error, and more tests of the netcdf input files consistency.
1049    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1050    o pkg/seaice:
1051     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1052       requires a new routine: seaice_diagnostics_fill.F
1053     - make sure that seaice does not move if not forced (pressure replacement
1054       method, Hibler and Ip, 1995), changes results
1055     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1056     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1057       It is turned off by default (=-1.), because it changes the results.
1058     - make it possible to read AREA from a file, too.
1059    
1060    checkpoint59c
1061    o add S/R and diagnostics for oceanic mixed-layer depth
1062    o move GMRedi call after all vertical mixing schemes (including KPP)
1063    o pkg/thsice:
1064     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1065      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1066    o pkg/obcs:
1067     - bug fix for balance code
1068    o pkg/seaice:
1069      - allow values of SEAICE_elasticParm > 1
1070      - add new parameter SEAICE_evpTauRelax as an alternative
1071        to SEAICE_elasticParm
1072      - make lsr boundary conditions free slip (by default), changes result
1073      - add code for no slip boundary conditions for lsr
1074      - set minimum of zeta to zero (and not 4e8) (changes results)
1075      - add a cap on AREA after advecting AREA if seaice_growth is not called
1076    o change calculation of Visbeck K:
1077      - no longer depend on tapering scheme; instead, compute slope (limited
1078        by GM_maxSlope). this is equivalent to what was comuted before with
1079        clipping or linear tappering.
1080      - fix vertical averaging (wrong by 1/2 level)
1081      - leave the old version (but will not be maintained) within
1082        #ifdef OLD_VISBECK_CALC / #endif
1083      - update output of exp. ideal_2D_oce
1084    o change error catch in calc_r_star to improve vectorization
1085    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1086      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1087    o adjoint:
1088      Re-organized adjoint checkpointing according to Matt Mazloff
1089      (but with modifs/completions/cleanups)
1090      Storing is now bundled into large arrays to optimized I/O
1091      (and second step in cleanup of the_main_loop)
1092    
1093    checkpoint59b
1094    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1095      - export/import (between ocean & coupler) fields needed for ocean DIC.
1096    o pkg/seaice:
1097      - get rid of three more exchanges seaice_calc_viscosities (required
1098        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1099      - bug fix in seaice_ocean_stress (update of lab_sea required)
1100      - reduce loop boundaries to necessary minimum also in seaice_evp
1101      - go back to the old way of computing deltaC/Z as the adjoint likes that
1102        better
1103    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1104      passive tracer to an Age Tracer) + update output.txt
1105    o pkg/exf:
1106      - implement A-grid / C-grid selection for wind-stress input files.
1107      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1108      for now, in exf_bulk_largeyeager04.F only :
1109      - change implementation for case where windspeed + 2. components wind-stress
1110        are read-in. AND use rhoConstFresh to convert evap.
1111    o pkg/seaice:
1112      - use correct EXCH_UV for wind-forcing (on A-grid).
1113      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1114        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1115    o pkg/exf:
1116      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1117      EXF_INTERPOLATION:
1118      - merge global_with_exf/code version of exf_interp_read.F
1119        to the main code ;
1120      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1121        reading the file ; Important: This options needs to be defined to recover
1122        previous code.
1123        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1124      - no longer loose real*8 precision along the way when using exf_iprec=64.
1125    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1126      - change discretisation of evp-solver in order to avoid another exchange
1127        (changes lab_sea) and clean up a little
1128      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1129        help the adjoint (this also changes the results slightly)
1130      - add a few "_d 0" where they had been missing in seaice_evp.F
1131      - cleaning up: remove unused seaice_calc_rhs.F
1132    o pkg/exf: some cleaning-up:
1133      - change various "constants" into runtime parameters
1134      - cleaned-up Large&Yeager04 routine which should eventually
1135        replace exf_bulkformulae.F (changed names of S/R and CPP)
1136        and merged various ALLOW_ATM_WIND options
1137     only used with thsice pkg (in thsice_get_exf.F):
1138      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1139        which are used when useStabilityFct_overIce=TRUE (= the default)
1140      - change default values of ice & snow emissivity and scale downward LW
1141        by ice & snow emissivity.
1142    o pkg/thsice:
1143     fix few little problems, in thsice_calc_thickn.F:
1144      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1145      - melt only laterally if hIce < hThinIce (as the comments say)
1146      and in thsice_extend.F:
1147      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1148      - start to form ice as soon as the minimum ice-volume is reachable.
1149     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1150      and cpl_aim+ocn
1151    o pkg/kpp
1152     - move computation of surface related input fields to KPP into a new
1153       subroutine kpp_forcing_surf.F
1154     - remove wrong (within bi,bj loops) EXCH calls.
1155     - little cleaning (add argument myThid in last position, cvs header ...)
1156     - for now, fix conservation problem by exchanging KPPviscAz (may not
1157       be the best fix)
1158    o pkg/seaice
1159     - check for inconsistent evp parameter/cpp-flag combination
1160     - remove leftover errIO flat for obsolete name list error handling
1161    o OpenAD
1162     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1163    
1164    checkpoint59a
1165    o pkg/seaice: some parameter clarifications and a little bit of clean up
1166    o pkg/thsice: rename run-time parameters:
1167       himin       -> hIceMin
1168       himin0      -> hThinIce
1169       hihig       -> hThickIce
1170       i0          -> i0swFrac
1171       transCoef   -> bMeltCoef
1172       frac_energy -> fracMelting
1173      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1174       with default values (for now) that do not change the results.
1175      remove old version of thsice vars advection in pkg/seaice.
1176    o in FFIELDS.h:
1177      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1178      - make pLoad & sIceLoad always available (but still only used if
1179         ATMOSPHERIC_LOADING is #define).
1180    o pkg/kpp: replaced _KPP_RL with _RL
1181    o bug fixes for vertical diffusivity computations when both KPP and
1182        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1183        are no longer updating the vertical diffusivity array
1184        (passed as argument) but are (re-) setting those arrays.
1185    o pkg/seaice: fix bug in evp solver, while doing that
1186      - change (improve?) discretization of stress computations for both
1187        cgrid-lsr and evp solver
1188      - add a new routine to compute strain rates
1189      - the above changes lab_sea results
1190      - add no slip conditions for evp solver (off by default), lsr-version
1191        may follow
1192      - fix exchange for shear at Z-points (does not change lab_sea)
1193      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1194        (to force the user to pick a time step since there is not "safe" way
1195        of choosing it)
1196      - add principal stress diagnostics
1197      - rearrange fields for evp a little to avoid having to call a: too many
1198        exchanges and b: exchanges for stress trensor components which we do
1199        not have.
1200      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1201        of evp, complete rewrite for lsr case (latter is does not yet work
1202        in all cases)
1203    o pkg/kpp: add code to have mixing in shelf ice caverns
1204      - add myThid to all kpp routines (long overdue)
1205    
1206    checkpoint59
1207    o pkg/exf:
1208      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1209        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1210      - move exf header files from lower_case.h to UPPER_CASE.h ;
1211        add missing cvs Header & Name
1212      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1213      - add namelist param. selectStressGridPosition, exf_monFreq
1214      - retire many _CLIM routines, and remove data.exf_clim
1215        + params moved to data.exf
1216        + climsst, climsss now handled by exf_set_gen, i.e.
1217          climss?period=0 refers to constant field,
1218          climss?period=-12 to monthly forcing
1219      - split up namelists in data.exf
1220    o pkg/seaice:
1221      - remove seaice_exch and seaice_exch_uv
1222      - remove superfluous exchange of theta
1223      - add myThid to seaice_budget_ocean/ice
1224      - add new interface for atmospheric wind forcing (C-grid only)
1225        + new routine
1226        + two new field (taux, tauy for stress over ice)
1227        + removed one global field (DAIRN) for C-grid case only
1228    o pkg/thsise
1229      - 2nd set of modifs for thsice adjoint in conjunction with exf
1230    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1231    
1232    checkpoint58y_post
1233    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1234      vertical diffusivity, similar to that in MOM4; turned on using
1235      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1236      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1237    o Added capability for 3D specification of background vertical diffusion
1238      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1239      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1240      "data" file that contains the 3D vertical diffusivity coefficients.
1241    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1242      - add code within pkg thsice to advect & diffuse sea-ice fields
1243      similar to (and will replace) what has been added in  seaice_advdiff.F,
1244      but: - conserving Mass, Heat & Salt.
1245           - better when using non-linear advection scheme (not yet fully tested)
1246           - can also be used in atmospheric set-up (for now, only the diffusion).
1247    
1248    checkpoint58x_post
1249    o IO option for global-file compact format:
1250      - add options when generating topology (utils/exch2/matlab-topology-generator)
1251      - add I/O capability (pkg/mdsio).
1252      - adapt utils/matlab/rdmds.m to read this format.
1253      for now long-line format not yet supported by pkg/mdsio (& exch2).
1254    o shelfice: add a few diagnostics
1255    
1256    checkpoint58w_post
1257    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1258      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1259      (and replace horiVertRatio in NH code).
1260      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1261                         and tutorial_plume_on_slope (sensitive to truncation)
1262    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1263      directly to drive seaice model (C-grid only)
1264    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1265     - reintroduce computation of wind from stress,
1266     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1267       mass points to avoid tau = 0
1268     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1269    o rdmnc.m: make it work with "global" files created with gluemnc
1270    o rdmnc.m : some improvements in dealing with singleton dimension
1271      (tested on all testreport mnc output files).
1272    o genmake2: disable pkg/profiles if netcdf test fails.
1273    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1274    o move call to cal_readparms up to make calendar parameters/variable available
1275      to all packages
1276    
1277    checkpoint58v_post
1278    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1279      useDynP_inEos_Zc tested.
1280    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1281    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1282      and portions thereof.  See read_cs.txt for description and examples.
1283    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1284      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1285      following the great-circle arc between those 2 points.
1286    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1287      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1288    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1289     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1290     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1291     - still needs work (not working with some options ; efficiency to improve)
1292       and serious testing.
1293     - use this scheme for temperature & salinity in 2 advection test exp.:
1294       advect_xy & advect_xz, respectively.
1295    
1296    checkpoint58u_post
1297    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1298    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1299    o testreport: add option "-skipdir" to skip some test.
1300    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1301      momentum calculation.
1302    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1303    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1304      remove checkpoint.F and the_correction_step.F (no longer used);
1305      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1306    o add option (linFSConserveTr) to correct for tracer source/sink due to
1307      Linear Free surface
1308    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1309    o pkg/thsice: fix reading mnc-pickups
1310    
1311    checkpoint58t_post
1312    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1313    o pkg/mdsio:
1314     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1315       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1316       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1317     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1318     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1319       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1320     - new S/R (to replace MDSWRITEMETA), which allows to write more
1321       informations (variable names, time ...) to meta files.
1322     - modify rdmds.m to give back the meta file content.
1323    o pkg/diagnostics: change vertical interpolation to be safer, and more
1324       flexible (define p-levels to interpolate to in data.diagnostics);
1325      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1326       diagnostic pointer.
1327    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1328    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1329    o fix multi-category seaice:
1330     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1331       SEAICE_MULTICATEGORY
1332     - fix short wave heat flux
1333    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1334       and allow to use EVP solver. Change forward lab_sea: test both EVP
1335       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1336    o Initial check-in of lab_sea adjoint
1337      (very similar to natl_box_adjoint/code_seaice)
1338      * used C-grid and EVP solver
1339      * used KPP, GM/Redi
1340      * uses inAdExact=.TRUE.
1341      * gradient checks fail for both ADM and TLM
1342        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1343        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1344        issue is related to forward mismatch between g77 an ifort
1345    o pkg/seaice: overhaul of thermodynamics
1346     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1347     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1348     - move a few global fields out of SEAICE.h into seaice_growth.F and
1349       make them 2D (FICE/QNETO/ ...)
1350     - remove FO (it is the same as QNETO)
1351     - introduce a few local fields to avoid modifying external fields such
1352       as atemp, etc.
1353    
1354    checkpoint58s_post
1355    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1356      changed exf_set_gen.F so that
1357        genperiod=0 means input file is one time-constant field and
1358        genperiod=-12 means input file contains 12 monthly means
1359    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1360      this affects truncation error ; generate new output file for exp. which
1361      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1362        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1363        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1364        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1365        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1366        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1367    o start implementation of deep-atmosphere and anelastic formulation
1368    o verification: remove 2nd copy of input files and use script "prepare_run"
1369      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1370    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1371    o profiles: fix for multithreaded case
1372    
1373    o diagnostics: rename few diags:
1374      s/'PRESSURE'/'RCENTER '/g
1375      s/'TICE    '/'oceFreez'/g
1376      s/'TAUX    '/'oceTAUX '/g
1377      s/'TAUY    '/'oceTAUY '/g
1378      s/'SWFLUX  '/'oceQsw  '/g
1379      s/DIFx/DFxE/g
1380      s/DIFy/DFyE/g
1381      and add few ocean-forcing diagnostics:
1382      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1383    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1384      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1385      as actual snow thickness.  It now refers everywhere to effective snow
1386      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1387    
1388    checkpoint58r_post
1389    o modifications to pkg/seaice/growth.F, which change results of
1390      lab_sea experiment: fixes pertain to melting snow over open water, to
1391      masking EVAP under sea ice, and to using the correct AREA variable for
1392      computations of EVAP, PRECIP, HSNOW, and GHEFF
1393    o add ability to read bathy, salt, and theta using MNC (off by def)
1394    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1395      both are turned off by default and do no change any results
1396    o seaice advection with pkg/thsice: a step toward the use of non-linear
1397      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1398    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1399      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1400      in natl_box (affects results @ truncation level: update output.txt)
1401    o multi-threading and IO:
1402      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1403      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1404        (needed to work with SingleCpuIO): tested in all verif. exp.
1405    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1406      affects the results (but none of the verification test uses this scheme).
1407    o Adding some pkg/diagnostics capability to pkg/seaice
1408      (will certainly be subject to changes)
1409    o ctrl: adding new control variables:
1410      lwflux, lwdown, evap, snowprecip, apressure, runoff
1411    
1412    checkpoint58q_post
1413    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1414      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1415      high_res_cube configuration by 4% on Columbia.
1416    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1417      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1418      dynamical allocation (seems to work in multi-threaded).
1419    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1420      single CPU io) so that TAF does not have to see EESUPPORT.h
1421    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1422    
1423    checkpoint58p_post
1424    o obcs: stop if obcs is used with useCDscheme = .true.
1425    o shelfice:
1426     - fix a sign error so that no slip at shelfice interface works
1427     - remove stop for combination non-hydrostatic code and shelfice. That does
1428       not mean, that the results are correct, but at least they are numerically
1429       stable
1430    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1431    o added adjoint exch routined for all exch*3d* routines
1432      and updated flow directives
1433    
1434    checkpoint58o_post
1435    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1436      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1437    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1438      and clean-up reading/writing of pickup files.
1439    o fix local version of read/write pickup (NH part) in rotating_tank/code
1440    o simplify EXCH interface:
1441     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1442     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1443    o added the regrid package
1444    o shelfice:
1445     - add a simple boundary layer scheme to reduce noise
1446     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1447    
1448    checkpoint58n_post
1449    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1450       local variable (not in common block).
1451    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1452      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1453      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1454        to work with SingleCpuIO.
1455    o add "_d 0" to real constant of pkg/cfc subroutines ;
1456       update exp. cfc_exemple & tutorial_cfc_offline output files.
1457    o multi-threading and IO:
1458      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1459        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1460      - barrier before and after reading.
1461      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1462      - avoid using MDS_WRITELOCAL for LAND pkg output.
1463      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1464        common-block variables ; Allows multi-threading with master-thread IO.
1465    o change default MAX_NO_THREADS from 32 to 4 ;
1466      and stop cleanly when MAX_NO_THREADS is too small.
1467    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1468    
1469    checkpoint58m_post
1470    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1471       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1472    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1473       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1474       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1475    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1476        add MITgcm_tutorials (= code + all the tutorials)
1477    o ecco, option to compute cost for total ssh (mean+anom)
1478    o consistent with addition of ptracer and ssh in pkg/profiles
1479    o profiles: adding ptracer and ssh
1480    o testreport: change multi-test output-file name
1481      (from output.txt.{name} to output.{name}.txt)
1482    o profiles: now ok for mutli-tiles case
1483    o seaice: add 4 parameters for different advection schemes for area,
1484      (effective) seaice thickness, enthalphy, and snow height. Their default
1485      is the standard parameter SEAICEadvScheme
1486    o calc_gw:
1487     - add cosFacU in zonal viscous flux (harmonic.visc.).
1488     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1489       of tutorial_plume_on_slope.
1490    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1491    o calc_gw: true flux-form, account for horizontal grid spacing.
1492      update rotating_tank results, but not plume_on_slope (affected at
1493      truncation level, 11 digits).
1494    
1495    checkpoint58l_post
1496    o calc_gw:
1497     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1498     - remove side-drag for now (need to fix it); update plume_on_slope results.
1499     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1500    o commit code to make SST/SSS weights spatially variable
1501      (based on either variable in-situ or variable initial T/S weights)
1502    o pkg/ecco:
1503      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1504        now based on horizontally varying weights wthetaLev, wsaltLev
1505      * cost_averagesflags now returns year indices in addition to day, month
1506      * sflux balance is performed on annual basis
1507        (sflxumm, sfluxmm2, bal_sfluxmm)
1508      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1509        including separate counting and multipliers
1510    o pkg/rbcs
1511      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1512    
1513    checkpoint58k_post
1514    o testreport:
1515     - always build in dir. "build" (if not there, mkdir build instead of building
1516       & running in input)
1517     - run in dir run (if it exists), in build otherwise.
1518     - call prepare_run (if input/prepare_run exists)
1519     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1520    o pkg/exf modifications to interpolation and rotation routines for more
1521       reasonable treatment of North Pole singularity: for tracers North Pole
1522       value is set to northernmost zonal-mean value, for zonal velocity it is
1523       set to zero, and for meridional velocity it is set to northernmost value.
1524    o pkg/exf/exf_check_range.F
1525     - add tile index to diagnostics and move stop statement to the very
1526       end of the routine.
1527    o pkg/diagnostics: (diagnostics_main_init.F)
1528      define title of isomorphic variables according to the current config.
1529    o pkg/thsice with pkg/seaice dynamics:
1530    - fix domain of computation (interior only, required for exf) and do exchanges
1531    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1532    o towards a standard way of dealing with multi-threading in MONITOR
1533      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1534    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1535       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1536    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1537    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1538    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1539       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1540    o tracer advection:
1541     - clean-up and simplify calc_common_factors.F
1542     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1543       advection subroutine (but still not used within DST advection S/R)
1544    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1545    
1546    checkpoint58j_post
1547    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1548      from file (collects calls previously in FORWARD_STEP)
1549    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1550    o adjoint store dir. adjusted accordingly
1551    o genmake2
1552      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1553    
1554    checkpoint58i_post
1555    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1556      on wind stress (SEAICEstressFactor defaults to 1.)
1557    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1558      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1559    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1560      on CS-grid: no longer loosing mass.
1561    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1562    o pkg/ggl90: fix sloppy output and fix a bug
1563    o pkg/seaice: added SEAICEuseEVPpickup parameter
1564      - Set to false in order to start EVP solver with
1565        non-EVP pickup files when using SEAICEuseEVP
1566      - fix sign error in diffusion in seaice_calc_rhs
1567    
1568    checkpoint58h_post
1569    * Modifications for bottom topography control
1570      o replace hFacC by _hFacC at various places
1571      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1572      o add non-self-adjoint cg2d_nsa
1573      o update autodiff support routines
1574      o re-initialise hfac after ctrl_depth_ini
1575      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1576    * Adding verification for 5x5 box (4-layer) bottom topography control
1577    
1578    checkpoint58g_post
1579    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1580       used for mean seasonal cycle, mean diurnal cycle); add an example
1581       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1582    o pkg/ggl90:
1583      - add parameter (minimum surface kinetic energy)
1584      - fix bug (avoiding division by zero)
1585    o couple pkg/thsice to pkg/seaice:
1586      - modify advection in seaice to accomodate new scalar fields to be advected
1587      - only muliDimAdection scheme work with seaice/thsice
1588      - mapping of thsice-variables to seaice-variables, back and forth
1589      - does not break the verification experiments, but does not give the
1590        desired results either
1591    o pkg/seaice
1592      - make (default) second order advection a bit less confusing?
1593    
1594    checkpoint58f_post
1595    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1596      to pkg/seaice):
1597      - new routines thsice_map_exf and thsice_get_exf provide the interface
1598      - add an additional formal parameter to thsice_solve4temp
1599    o pkg/exf:
1600      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1601      - correct Stefan-Boltzmann constant
1602      - new parameter for longwave surface emittance
1603      - separate some stuff from exf_bulkformulae into new routines  
1604        exf_radiation, exf_wind
1605      - add new parameters and constants: longwave emissivity for ocean, ice
1606        and snow, evaporation parameters over ice
1607      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1608        either wind from stress or stress from wind
1609    o pkg/thSIce:
1610    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1611    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1612       and THSICE_CALC_THICKN
1613    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1614    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1615      to make debugging easier.
1616    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1617    o pkg/bulk_force:
1618      - clean-up comments and parameters ;
1619      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1620    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1621      generate new output for test-experiment: aim.5l_cs.thSI
1622    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1623      testreport accordingly
1624    
1625    checkpoint58e_post
1626    o SEAICE_CGRID adjoint done
1627    o R_STAR adjoint implemented.
1628      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1629      * need to sort out init. of h0facc, etc.
1630    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1631      to be able to use it in pure forward.
1632    
1633    checkpoint58d_post
1634    o upgrade simple test-experiment to tutorial example:
1635     step.1: duplicate the experiment and (step.2) will remove the old copy.
1636      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1637      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1638      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1639      tutorial_global_oce_biogeo    <- copy of dic_example
1640      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1641      tutorial_plume_on_slope       <- copy of plume_on_slope
1642      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1643      tutorial_global_oce_optim     <- empty for now (David ?)
1644      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1645     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1646    o correct a sign problem in cost_scat.F
1647    o obcs and ptracers: fix boundary conditions for advections schemes
1648      with larger stencil
1649    o thsice adjoint: start
1650    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1651      completeness
1652    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1653      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1654    o ptracers adjoint:
1655      * avoid extensive recomputatations
1656      * fix missing re-init. of gptr (missed by TAF)
1657    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1658      me to turn off the excessive output to STDOUT that this package produces
1659    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1660      and add those terms in Vector-Invariant formulation.
1661    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1662      if the control period (xx_hfluxperiod etc) is 0
1663    o in profiles pkg, clean routines and fix details
1664    o in ecco pkg, reading ssh data:
1665      fix problem in case the model does not start at iter0=0
1666    o fix mnc-pickup/restart for ptracers
1667    o new package prifiles:
1668      code to compute profile-based cost by Gael Forget
1669      (modifs in ecco, ctrl, autodiff)
1670    o Benign bug fix in initialization (spotted by M. Mazloff) of
1671      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1672    
1673    checkpoint58c_post
1674    o adjoint: finish NLFS adjoint and provide reference output in
1675      verification/global_ocean.90x40x15/results_ad_nlfs
1676    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1677      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1678      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1679      with SEAICE_CGRID defined.
1680    o move calendarDumps from "data" to "data.cal" and clean-up the code
1681      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1682    o add useEXF & useCAL flags (for now, set in hard-coded way)
1683    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1684      (were missing in NH mode, and wrong in quasihydrostatic mode).
1685      waiting for Chris updated version of calc_gw to add those CALLs.
1686    o fix bug in quasihydrostatic S/R ;
1687      add a test for this option: global_ocean.90x40x15.qshyd
1688    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1689      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1690    o add on/off flag useOffLine for package OFFLINE
1691    o seaice:
1692      - modify advection so that it works also on the C-grid
1693      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1694        problem in multi-tile runs with C-grid
1695      - add flags for clipping ice velocities and/or masking solver forcing
1696      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1697        C-grid solver
1698      - added a few comments to seaice_diffusion.F
1699      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1700        are now exclusive)
1701      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1702        required re-ordering the code a little:
1703       + make DAIRN global variable (defined in SEAICE)
1704       + move computation of the viscosities eta and zeta into a new separate
1705         routine (because I need to recompute them in seaice_ocean_stress.F)
1706    
1707    checkpoint58b_post
1708    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1709      update output.txt of exp. aim.5l_cs.thSI
1710    o various mnc cleanups and improvements:
1711      + shrink lookup tables by factor of ~4
1712      + better error reporting when running out of lookup space
1713      + able to handle longer path/file names (up to 500 chars)
1714    o adjoint:
1715      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1716      - TBD: "hidden" mom_vecinv recomp. in dynamics
1717    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1718     (allow to differentiate between forcing components using new integer flags:
1719      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1720     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1721    o ecco
1722      - enable trend removal from SSH anomaly obs.
1723    o adjoint
1724      - a fix for PmEpR when #undef EXACT_CONSERV
1725      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1726      - try to fix "hidden" recomp. in forward_step for NLFS
1727        (NLFS seems broken sometimes after I checked it in)
1728    o seaice:
1729     - add c-grid version of the dynamic solver:
1730       + three new routines that are the c-grid substitute lsr, dynsolver
1731         and ostres
1732       + put a few fields that were local to dynsolver into global common
1733         blocks, so that I can move the computation of stresses etc into
1734         seaice_lsr (saves coding but may break the adjoint).
1735     - replace more hardwired parameters by runtime parameters
1736     - add ice masks that mask the rhs of the implicit solvers where there
1737       is no ice (commented out in seaice_dynsolver, because i am not sure
1738       if this works properly), eventually this should replace the clipping
1739       of ice velocities in seaice_dynsolver to +/-40cm/s.
1740    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1741      include it only where its needed
1742    o move balancing of fluxes before the call of external_forcing_surf
1743    o seaice:
1744      - correct units of turning angles (now they are really in degrees)
1745      - move computation of GWATX/Y out of main routine into dynsolver
1746      - initialize GWATX/Y in seaice_init
1747    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1748      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1749    o seaice: add runtime flags for turning angles (default to zero)
1750    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1751      and trend from exf forcing and ctrl control adjustments
1752    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1753      (since checkpoint57x_post)
1754    o change the default rotation period to 86164.s = the Earth rotation
1755    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1756      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1757    o seaice advection: add code for choosing between the default (2nd order
1758      central differences) and multiDim advection schemes provided by
1759      pkg/generic_advdiff
1760    o seaice:
1761      - removed all references to SEAICE_GRID.h fields from
1762        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1763        (cubed-sphere configuration will change a little)
1764      - grid computations in seaice_init are obsolete now.
1765      - cleaned up code a little so that is easier to read (hopefully).
1766      - added new (better?) discretizations of default advection and diffusion
1767        (turn on with SEAICEuseFluxForm)
1768      - replace 1 in 3d global fields by kSurface in growth.F
1769      
1770    checkpoint58a_post
1771    o seaice:
1772      - bug fix in advect.F
1773    o shelfice:
1774      - separate shelfice load anomaly from pload (breaks with time
1775        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1776        Its default is 0., but it may be computed more cleverly from (unknown)
1777        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1778        done offline. A good approximation of the pressure load anomaly is
1779        necessary to avoid large initial adjustment processes underneath
1780        deep-reaching shelfice.
1781      - small fix in ISOMIP shelfice_thermodynamics
1782      - add more sophisticated thermodynamics of Hellmer (1989), this is
1783        now the default
1784      - give a few constants more intuitive names
1785    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1786      if bulk formulae are used in long integration (especially EmPmR). Turn
1787      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1788      if balancePrintMean, the imbalance that is substracted is printed to
1789      STDOUT.
1790    o fix bug (typo) in obcs_apply_eta.F
1791    o add a new package shelfice which enables us to model the circulation
1792      underneath shelf-ice with draughts of hundreds of meters.
1793     - works
1794     - to do: + include improved thermodynamics
1795              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1796                instead of new field kTopC
1797              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1798                instead of new field R_shelfIce and new code in ini_depth.F
1799                and ini_mask_etc.F?
1800              + adjust vertical mixing schemes?
1801    o seaice pkg:
1802     - add a cpp-flag to include a simple formula for a salinity dependent
1803       freezing point of sea water at the surface
1804     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1805       meridional stresses are now different (and hopefully correct)
1806    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1807       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1808       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1809    o pkg/diagnostics: add options and parameters for regional-statistics
1810       diagnostics ; define regions by reading a region-mask from a file
1811       (might add other options later)
1812    o pkg/bulk_force:
1813     - add option and parameters to use AIM surface-flux formulae.
1814     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1815       others forcing fields (defined in PARM05, parameter file "data") are loaded
1816       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1817     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1818     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1819     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1820       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1821     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1822    
1823    checkpoint58
1824    o add "--embed-source" option to genmake2 which, when the supporting
1825      tools can be compiled (as determined by genmake2) will turn on the
1826      embed_files package which then embeds the entire MITgcm source code
1827      (*.[fFhc] + Makefile) used for the build within the executable
1828      - requested by CNH but off by default
1829      - adds a paltry <9MB to the mitgcmuv executable in most cases
1830      - only writes the output when useEMBEDSRC in eedata is true
1831    o clean up 3-dim. relaxation codes:
1832      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1833      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1834      * Thanks to Tom Haine for testing!
1835    
1836    checkpoint57z_post
1837    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1838      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1839    o fix the pickup behavior for obcs in combination with ptracers
1840    o fix a bug in ptracers_external_fields_load
1841    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1842      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1843    o transfered surface NH pressure to eta field (if exactConserv).
1844    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1845         and update lab_sea output.txt file.
1846    o completing 3-dim. relaxation code: additional term
1847         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1848      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1849      * At compile time, in "EXF_OPTIONS.h" set
1850          #define  ALLOW_CLIMTEMP_RELAXATION
1851          #define  ALLOW_CLIMSALT_RELAXATION
1852      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1853          tauThetaClimRelax3Dim = 15552000.0,
1854          tauSaltClimRelax3Dim  = 15552000.0,
1855      * 3 cases:
1856          1) Use a constant-in-time 3-dim. field
1857          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1858          3) Real-time relax. to time-evolving prescribed field
1859    o Adding Laplacian-type smoothness constraint on
1860      initial and boundary (forcing) controls (ic, bc)
1861      * enable at compile-time via
1862        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1863      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1864      * Absolute scale somewhat unclear so far
1865      * no area weighting was included since no other cost term does so far
1866    
1867    checkpoint57y_post
1868    First step for a NLFS adjoint
1869    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1870    o new init. routines for calc_r_star, calc_surf_dr
1871    o still need to deal with ini_masks_etc
1872    o testreport seemed happy
1873    checkpoint57y_pre
1874    
1875    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1876    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1877    o add new offset feature to offline pkg (plus minor cleanup)
1878    o cfc fixes for final year of integration
1879    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1880      be in GCHEM_OPTIONS).
1881    
1882    checkpoint57x_post
1883    o fix testreport Pb in multiple test experiment.
1884    o cleanup our namelist syntax in verification:
1885      - make it more F95 standards compliant (some work still needed)
1886      - allows the vast majority of our tests to work with gfortran
1887    o Non-Hydrostatic:
1888     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1889     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1890    o Allow to apply AB on T,S rather than on AB(gT,gS):
1891     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1892     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1893       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1894     - need a "clever" read_pickup to restart from the other AB formulation
1895    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1896    o remove some unused variables (reduces number of compiler warnings)
1897    o adjoint
1898      * Disable useVariableViscosity for adjoint for time being
1899        (there are a number of extensive recomputations)
1900      * Initialize certain variables needed for adjoint
1901    
1902    checkpoint57w_post
1903    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1904                 fix the singleCpuIO RS version of MDSWRITEFIELD
1905       and add a WARNING if using globalFiles=T with multi-processors.
1906    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1907      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1908    o tracer advection scheme:
1909      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1910       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1911       was not very convenient).
1912      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1913       (further tests needed for the implicit DST & Flux-Limiter schemes).
1914    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1915      and sRef for convenience, handy, when you want to initialize
1916      ptracers in a large domain with a constant non-zero value. Also,
1917      untangle ptracers_init.F a little.
1918    
1919    checkpoint57v_post
1920    o change dome exp. to use variable viscosity in side-drag terms.
1921    o remove all the files from the cfc_offline test since they are now
1922      incorporated into tutorial_cfc_offline which has been producing
1923      identical results for a few days of testing
1924    o add new parameter: sideDragFactor to enable half-slip-side BC
1925      and change side-drag S/R to use viscosity from mom_calc_visc
1926      (can switch back by setting sideDragFactor=0.); affects results at
1927      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1928       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1929    o vorticity & strain are now computed without masking, to account for
1930      no-slip-side BC in variable viscosity calculation ; mask is applied
1931      anyway later on, before computing advection/coriolis terms.
1932    o modify exp4 to test new obcs support for reading from external files
1933      and for passive tracers
1934    o fix behavior of ptracers_monitor when monitor output is written to a
1935      netcdf-file; still not independent of monitor.F (writes in the same
1936      file).
1937    o change default value of tRef (put a uniform, meaningful value for ocean
1938      & atmos) and initialize sRef (was missing, as Martin mentioned).
1939    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1940      to be proportional to enstrophy dissipation length.  Thus,
1941       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1942      This is now consistent with Smagorinsky and with the manual.
1943    
1944    checkpoint57u_post
1945    o OBCS and PTRACERS: add open boundary support for passive tracers
1946      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1947        OB-values from file; this is not different from the way theta and salinity
1948        are treated
1949      - however, Orlanski-radiation conditions are not supported, and the model
1950        will stop if you use pTracers and Orlanski at the same time.
1951      - beefed up the rountine obcs_external_fields_load: now only those open
1952        boundary values are overwritten with values from files for which there
1953        are really files, otherwise the OB-fields remain untouched. This makes
1954        it possible to use different OBs at different ends of the domain (as
1955        with EXF)
1956    o reduce number of exch calls in shap_filt (s2).
1957    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1958      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1959    
1960    checkpoint57t_post
1961    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1962    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1963      same truncation, independent of the face number: affects affects several
1964      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1965    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1966      note that biharmonic viscosity + no-slip was not tested in any experiment.
1967    o fix bug in non-linear free-surf side-drag ; generate new output for
1968      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1969    o make mnc honor the writeBinaryPrec flag for most kinds of output
1970    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1971    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1972      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1973    o add brackets in multi-terms sum to get same truncation, independent of
1974      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1975      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1976    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1977      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1978      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1979      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1980      Suggested values of viscosity parameters found in mom_calc_visc.
1981      Many new viscosity diagnostics available.
1982    
1983    checkpoint57s_post
1984    o Add clearing-house for viscosity calculations, mom_calc_visc and
1985      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1986      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1987      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1988      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1989      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1990      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1991      ViscAhStrain and viscAhTension are now retired.
1992    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1993    o In response to JMC's bug report, genmake2 now ignores any soft-links
1994      that it finds in the *current* directory when searching for files.
1995      Soft-links found in any other source directories will still work as
1996      they did before.
1997    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1998      a C routine to unlimit the stack size
1999    o mnc-ify pkg/aim snapshot vars
2000    o mnc-ify pkg/land as requested by Daniel
2001    o various changes to mnc including:
2002      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2003      - output can now be grouped so that all files within a group
2004          change the ITER portion of their names in lock-step together
2005      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2006          and works with both EXCH1 and EXCH2 (but needs more testing)
2007      - writing works for all verification test cases w/ g77 on Linux
2008    
2009    checkpoint57r_post
2010    o make MNC variable initialization happen earlier
2011    o add diagnostics for (almost) each term of the momentum Eq.
2012    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2013    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2014    o remove MINIMAL_TAVE_OUTPUT option ;
2015      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2016    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2017      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2018    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2019    o add time-dependent SST, SSS control
2020    o cost terms in ecco/ modularized (new cost_generic.F)
2021    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2022    o new infrastructure for seaice model vs. obs misfits in seaice/
2023      * driver from the_main_loop.F is seaice_cost_driver.F
2024      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2025      * gradient check in Exp. 6a of natl_box_adjoint/
2026    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2027      (see README file)
2028    
2029    checkpoint57q_post
2030    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2031    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2032      - bug was reported by Jean-Michel and Ian Fenty
2033    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2034      update exp. cpl_aim+ocn output.
2035    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2036      Needed for high-res. runs with large global files
2037      to be able to limit tapelev size
2038    o Changed some tests for adjoint:
2039      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2040      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2041      * global_ocean.90x40x15/ back to default 3-level checkpointing
2042    o Modifications to enable scripted COMMON to MODULE conversion
2043      * verification/OpenAD/code/ has necessary scripts and description;
2044      * converts, compiles and runs successfully;
2045    
2046    checkpoint57p_post
2047    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2048    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2049      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2050    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2051    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2052      (was already the case for dissipation with mom_vecinv,
2053       and also the case for grad.PhiHyd when staggered-timeStep)
2054      This will allow to put dissipation out-off the AB time-stepping.
2055     Unfortunately, affects truncation error. Update output of exp. that "fails"
2056      (cg2d matching number) and leave the others for later: front_relax(10),
2057      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2058      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2059    
2060    checkpoint57o_post
2061    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2062      (2) its ready to be documented during the 20050801 DocFest
2063    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2064      for ideal_2D_oce and lab_sea on linux_ia32_g77
2065    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2066      in global1x1_tot/code_seaice_adj to access indices 32, 33
2067      (worth another tag)
2068    
2069    checkpoint57n_post
2070    o adding precip control xx_precip 32
2071    o adding swflux control xx_swflux 33
2072    o Replacing 10 forcing penalty cost routines by 1 generic.
2073    o Implementing partitioning in time-mean and variable adjustment
2074      for atmos. state.
2075    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2076  o in natl_box_adjoint:  o in natl_box_adjoint:
2077    * updated: results_bulk/    * updated exp 1 to 10
2078    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
2079    o updated global1x1/*_seaice_adj/
2080      to incorporate latest changes
2081    o enable useSingleCpuIO for mdsio vector routines
2082      (applies in particular to tapelev I/O)
2083    o removed inefficient K-loop in all active_file*control*.F
2084    
2085  checkpoint57m_post  checkpoint57m_post
2086  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2663  o add two new packages
2663    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2664    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2665      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2666      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2667  o add offline package  o add offline package
2668  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2669    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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