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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1137 by jmc, Tue Jun 30 00:02:32 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 pkg/exch2 (exch2_rxN_cube*):
8  o moved ptracer ctrl index 17 -> 32     remove last BARRIER (no need to synchronise after getting data from shared
9       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
10    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
11      and generate new output (for the 2 tests) using default rotationPeriod.
12    o pkg/exch2:
13      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
14        (was already the case with AUTODIFF_EXCH2 defined)
15      - add bj in exch2 arrays and S/R.
16      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
17        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
18    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
19      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
20        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
21      - verification experiment natl_box.longstep
22    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
23      allow different versions of ifort (8 or 9) and different versions
24       of mpi (mpich or mpich2) to be used with the same optfile.
25      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
26       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
27    o pkg/seaice:
28      fix previous modif (3-level field removed) for old-pickup reading
29    
30    checkpoint61r
31    o pkg/seaice:
32     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
33      1. introduce fields for time step (N-1)
34      2. do not use levels 2 and 3 anymore (but keep them)
35      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
36         includes changes to pkg/thsice/thsice_get_velocity.F,
37         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
38         pkg/obcs/obcs_apply_uvice.F.
39     - completely remove code for leap-frog time stepping for second order
40       advection
41     - adjusted adjoint accordingly;
42       gradient checks have improved by an order of magnitude!
43    
44    checkpoint61q
45    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
46     - the boundary conditions along open boundaries are unclear, because the
47       associated masks are set to zero and are thus treated as closed when
48       applying the slip-boundary conditions.
49     - move initialisation of grid variables from seaice_init_varia to _fixed
50    o adding doc/diags_changes.txt
51    o model/src:
52      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
53       to avoid "_diags" naming if no relation to pkg/diagnostics.
54      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
55       file and only call PLOT_FIELD_XYZ if debugMode=T.
56      remove few PLOT_FIELD_XY calls outside initialisation.
57      remove few unnecessary BARRIER.
58    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
59      of salt_plume package in Southern Ocean
60    o pkg/thsice:
61     - fix hOceMxL in overlap (needed for sea-ice advection);
62       update output of experiment global_ocean.cs32x15.icedyn.
63    o pkg/seaice:
64     - make the (placeholder-)tracer IceAge a little more meaningful
65      by avoiding ridging of age due to convergent ice flow
66     - add diagnostics for surface temperature, atmospheric and oceanic
67       heat flux, and atmospheric and oceanic ice growth
68    
69    checkpoint61p
70    o eesupp (global_max & global_sum):
71     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
72     - remove starting & endding barrier (no longer needed)
73    o pkg/mdsio, writelocal:
74       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
75       (remove the STOP): uses shared buffer IO to store data from all threads
76       and then let master-thread write nThreads tiles.
77    o pkg/mdsio (read/write field):
78     - tiled IO done in 1 piece (all levels at a time);
79     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
80     - multi-threaded: allow to read/write local (non-shared) array
81       (was already working with singleCpuIO ; now works also without);
82       => no longer needs barrier call after reading a file (added inside
83       mds_read/write field).
84     - move barrier calls outside gather/scatter_2d to mds_read/write_field
85    o pkg/obcs/exf
86      - exf_getffieldrec.F: add a few ". _d 0" and
87                            add code to catch the case fldperiod = 0.  
88      - obcs_precribe_read.F: change if statements so that they match
89                              the variable type (_RL)
90      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
91        exf_iprec) as part of namelist EXF_NML_01
92    o pkg/mdsio:
93      - read/write tiled (local) files: read/write 1-level tile chunk at a time
94        (instead of segment of length sNx); expected to speed up tiled IO.
95    o pkg/exch2:
96      - take buffer copy from/to array out of S/R exch2_send/recv into new
97        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
98        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
99      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
100      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
101        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
102        including Topology header file (and common blocks).
103      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
104        remove 2nd exch call in exch2_s3d_rx (no longer needed).
105      - document S/R arg. list (+ update some comments)
106    o pkg/seaice:
107      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
108        temperature and humidity over sea ice based on climatological values.
109      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
110        of LSR (this change is expected to change the results slightly because now
111        it uses slightly difference moduli from the second last LSR solution, but
112        that is more consistent with the stress computations; this part of the code
113        is not tested in the verification experiments)
114      - fix diagnostics for flux of ice in case of B-grid
115      - turn strain rates eij and press into global fields within global
116        common block in SEAICE.h for more straighforward diagnostics
117      - fix diagnostics for principal stress components, press, zeta, eta
118        to give something meaning full
119    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
120      new output (all 4 tests) using default rotationPeriod.
121    o pkg KPP:
122      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
123      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
124        and normal grid from 1 to Nr)
125    o Fix computations of L4rdt in mom_calc_visc.F
126    o eesupp:
127      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
128      should be called before a "stop" if we know that all process are going
129      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
130    
131    checkpoint61o
132    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
133    o model/src/ini_curvilinear_grid.F:
134       compute angleSin/CosC when they are not read from a file
135    o pkg/seaice:
136       add pseudo time stepping for LSOR
137    o pkg/exch2:
138       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
139    o pkg/seaice:
140       Adding separate sea ice albedo, drag coefficients, and HO in Southern
141       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
142    o SingleCpuIO:
143       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
144    o pkg/seaice:
145       put exchanged variable in (local) common block for MPI+Multi-Threads
146       to work (necessary with exch1, and for now with exch2 too).
147    o verification: to get more experiments tested with mpi, mth and mpi+mth,
148      change tiling of:
149       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
150       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
151      update output of exp:
152       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
153       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
154      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
155                       (note: output.txt generated on faulks using only 1 tile)
156    o eesupp & mdsio (SingleCpuIO):
157     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
158       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
159       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
160     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
161     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
162       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
163    o pkg/exch2:
164     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
165       read parameter file "data.exch2" if it exists; otherwise try default regular
166       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
167     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
168       with new code (not to be used, just as a backup solution).
169     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
170       in utils/exch2/input.
171    
172    checkpoint61n
173    o eesupp & mdsio (SingleCpuIO):
174      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
175        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
176        receive real*4 array (instead of real*8) to read/write 32.bit files.
177        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
178         and remove new mapping S/R)
179    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
180      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
181        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
182        when using exch2. Add S/R to map global io-buffer to global model array.
183      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
184    
185    checkpoint61m
186    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
187      and add 3 other S/R for other types (R4,R8,RS).
188      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
189    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
190     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
191     - reduce number of macro definitions (keep only those which are used);
192       can always call directly the corrresponding S/R if needed.
193     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
194       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
195     Fixed wrong type of arg in:
196       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
197       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
198     To fix: global_sum of var in common block is wrong (multi-threaded) in:
199       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
200     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
201    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
202      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
203    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
204    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
205      edges are closed (zero depth); might happen with "blank tiles";
206      for now, disabled if using OBCS.
207    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
208      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
209    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
210      to reduce length of 1.D array print in STDOUT.
211    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
212      + use 48 tiles (16x8): this will allow to test "blank tiles".
213    o start to test MPI + multi-threaded (change testreport to skip tests
214      where number of tiles do not match).
215    o genmake2: add option "-omp" to turn on Open-MP ;
216      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
217    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
218      and keep the original tile numbering. Note: compatible with old
219      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
220    
221    checkpoint61l
222    o Overlaps had been forgotten in calculating ijk keys : fixed
223    o fix cyrus makedepend for gcc 4.4
224    o experiment fizhi-cs-aqualev20:
225      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
226      and generate new output. Note: new output is much closer to the old
227      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
228      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
229    o pkg/fizhi:
230     - change to avoid indices going deliberately over array-bounds
231     - remove unnecessary MPI stuff
232     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
233     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
234       does not go over array-bounds and therefore returns reliable output.
235     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
236       this S/R has 4 output arguments, which are used inside "get_alarm";
237       when it is called with the same variable "ndum" in place of several
238       output arguments, this produces weird side effect inside "get_alarm"
239      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
240       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
241       address) and produces error.
242    o tools/gemake2: (March 27-29 2009)
243      with option "-mpi": link *_mpi files from "MODS" dir (this is what
244      testreport does).
245    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
246    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
247       update lab_sea.lsr & lab_sea.salt_plume results
248    o pkg/seaice:
249      Major overhaul of the LSOR solver: change discretization from original
250      finite differences to finite volume. The old routine is still in the
251      file seaice_lsr.F and can be turned on with the CPP-flag
252      SEAICE_OLD_AND_BAD_DISCRETIZATION
253      Along with this change, the discretization of the strain rates is changed.
254      The same flag turns on the old discretization in seaice_calc_strainrates.F
255      All verification experiments with seaice are affected (except for
256      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
257      results by setting the above flag.
258      Further changes involve changes in defaults:
259      - ALLOW_FLOODING is defined and turned on by default
260      - SEAICEadvSnow = .true. is now the default
261      - SEAICEadvSalt = .true. is now the default
262      - SEAICEadvAge  = .true. is now the default
263      - SEAICE_clipVelocities  = .false. is now the default
264                                         (as per J. Zhang's recommendation)
265      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
266        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
267      - seaice_growth: replace computation of UG by a simple copy from wspeed
268    
269    checkpoint61k
270    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
271      seaice_lsr: fixed a few metric terms,
272                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
273                  add more debugging diagnostics
274      seaice_evp: removed superfluous many metric terms of FV discretization
275                  of stress divergence
276                  affects lab_sea, lab_sea.hb87
277      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
278                  of stress divergence for non-evp solver
279                  (this part is not tested anywhere)
280      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
281                  they were effectively only half slip
282                  affects lab_sea.hb87
283      updated all relevant verification experiments (except lab_sea//output_adm.txt
284        which was left over, but fails at level 7 & 6)
285    
286    checkpoint61j
287    o pkg/seaice: turn a few hard wired parameters into run time parameters
288    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
289      time in seconds as promised by the usints in seaice_monitor and exf_monitor
290    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
291      that are not cubed-sphere grids
292    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
293    o pkg/ctrl:
294      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
295    o non-hydrostatic (calc_gw.F):
296      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
297      update output of exp. global_ocean.cs32x15.viscA4
298    o remove backward compatibility for thetaMin,phiMin
299      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
300    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
301      interpolated wind field not only for curvilineargrid=.true., but also
302      for a rotated grid (rotateGrid=.true.)
303    o pkg/exf: add capability to bypass interpolation for runoff
304      by setting yet another CPP-flag
305    o eesupp/src, B-grid exchange:
306      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
307    o autodiff
308      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
309      allows to switch to single-prec common blocks;
310      corresponding switch occurs in tamc.h, integer isbyte
311      TAF store directivs "byte" and "kind" seem equivalent;
312      Most tamc.h have been updated correspondingly.
313    
314    checkpoint61i
315    o autodiff:
316      fix autodiff_sore/_restore indices for obcs
317      (spotted by I. Hoteit, M. Mazloff)
318    o pkg/autodiff, pkg/ctrl:
319      Add flag to reduce all tapelev I/O to single-prec.
320      In data.ctrl set
321        doSinglePrecTapelev = .TRUE.
322    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
323      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
324    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
325      real fresh water flux (not yet)
326    o pkg/mdsio & rw:
327     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
328     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
329    o pkg/flt:
330     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
331       init_fixed & ini_varia.
332     - clean-up & simplify linear interpolation S/R:
333       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
334     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
335     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
336     - add vert. coordinate & horiz. indices to output files.
337     - change vertical position in initial condition, from index to depth [m].
338     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
339       (easier to get to a curvilinear grid) ; delX,delY no longer used.
340    o pkg/ggl90: a few modifications:
341     - fix bottom boundary condition, and interpolation of KappaE
342       near top and bottom
343     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
344     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
345     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
346    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
347      (maintain temporary backward compatibility, until next checkpoint)
348    
349    checkpoint61h
350    o pkg/diagnostics with "periodic averaging diagnostics":
351      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
352    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
353    o pkg/obcs: fix loop ranges for balancing code
354    o pkg/flt:
355     - improve criteria for finding which tile owns a float.
356     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
357    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
358      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
359      with ocean biogeo)
360    o pkg/flt:
361     - do some cleaning and fix the restart ;
362     - add output.txt in flt_example/results to get this pkg tested.
363    o genmake2: add an EXTENDED_SRC option and flag.
364       for now, cannot be turned on on command line (only through genmake_local)
365    o pkg/mdsio: read/write vector:
366     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
367     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
368       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
369     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
370      (drop to 4 digits matching for grad). But this test does not look very
371      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
372    
373    checkpoint61g
374    o pkg/flt:
375      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
376       + make OPTIONS file more standard.
377      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
378      - fix _BYTESWAPIO CPP-Flag
379      - standard reading of file-parameter "data.flt"
380      - fix argument list of S/R FLT_RESTART
381      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
382    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
383    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
384      a still unfixed compiler/optimization bug
385    
386    checkpoint61f
387    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
388      update results of global_ocean.cs32x15.icedyn test.
389    o move getcon.F from model/src to pkg/fizhi.
390    o pkg/exf: add parameter for extrapolation of temp up to the surface
391       and option to prevent negative evap (in bulk_largeyeager04 only).
392    o Prather Advection scheme: fix tracer conservation for divergent flow
393      (e.g., when using NonLin Free-Surface).
394    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
395    o gmredi (Visbeck-variable-K):
396     - add more parameters to Visbeck-variable-K.
397     - use a 5 points average for dSigmaR in Visbeck-K calculation
398       (more "homogenous": same stencil and same weights as in dSigmaH)
399     - update output of ideal_2D_oce experiment.
400    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
401      (#undef REAL4_IS_SLOW)
402     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
403       coordinate variable
404     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
405       (surface forcing fields), removes some of the functionality
406     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
407     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
408       probably not all: copy _RS surface flux fields to RL field before
409       calling DIAGNOSTICS_FILL
410     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
411       real*4 (CALL EXCH_*_RS) versions.
412     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
413       (generate new output).
414    
415    checkpoint61e
416    o gmredi (Visbeck-variable-K):
417      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
418      - change computation of Visbeck-K where Slope > Smax :        
419        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
420        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
421    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
422      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
423    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
424    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
425      does not become too large (to avoid precision problems in implicit-diffusion
426      solver); update ideal_2D_oce output.
427    o pkg ggl90:
428      - in ggl90_cal.F: compute only one set of visc/diff, used to
429        step forward TKE/T/S/momentum
430      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
431        have Prandlt =1)
432    o gmredi (fm07):
433      - add lower limit on Transition layer thickness + lower limit on 1/lambda
434      - allow to set few more params from data.gmredi
435    o pkg ggl90:
436          - add missing sqrt(2) factor in computation of mixing length
437            scale in ggl90_calc.F
438            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
439    
440    checkpoint61d
441    o adjoint modifs
442      - adapt to new field rhoInSitu
443      - allow to revert from StoreDynVars2D, StoreDynVars3D
444        to individual fields
445        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
446    o store 3-D (in-situ) density in commom block (DYNVARS.h)
447     - save 1 rho computation.
448     - no longer modify T & S inland when using down_slope pkg.
449    o gad_som : allow to switch to SOM advection for T & S without corresponding
450      pickup files (using new S/R: MDS_CHECK4FILE).
451    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
452      (for useSingleCpuIO to work in multi-threaded)
453    o pkg/shelfice:
454     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
455       with SHELFICEtopoFile in data.shelfice
456     - move code for reading ice shelf topography and modifying hFacC into separate
457       subroutines of the shelfice package
458     - separate initialisation of "fixed" and "variable" variables
459     - kTopC is not (yet) replaced by kSurfC, although this is possible
460    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
461    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
462      and rename:
463      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
464      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
465    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
466    
467    checkpoint61c
468    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
469      to add mass source/sink of fluid in the interior (3-D generalisation
470      of oceanic real-fresh water flux).
471    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
472    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
473    o new pkg: down_slope
474      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
475      - presently, modify T & S inland (dwnslp_calc_rho.F).
476        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
477      - implementation for ocean in P-coords not tested.
478      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
479    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
480      (to facilitate conversion of oceanic pkg to p-coordinate).
481    o change FIND_RHO to FIND_RHO_2D :
482      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
483    o new pkg: cheapaml
484    
485    checkpoint61b
486    o exch2:
487      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
488      - no longer depend on the order sequence (N,S,E,W).
489      - 3rd exchange no longer needed (tested with 24 tiles).
490      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
491      - exch_UV_A-grid readily available (but not yet tested).
492      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
493      (both are no longer needed) in exch_uv: no effect in forward run; but
494       get truncation error differences with adjoint exch.
495    o exch2:
496     - change index-bounds storage (moved from target to local tile,
497       more intuitive this way) ; rename/remove some variables.
498     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
499    
500    checkpoint61a
501    o exch2/matlab-topology-generator:
502      fix bug in index bounds for N-S internal exchange (hard to tell if this
503      had any effect on the solution).
504    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
505      is exceeded
506    o testreport: modify syntax of awk, so that it works also with
507      awk, and not only with nawk and gawk
508    
509    checkpoint61
510    o autodiff
511      Change default for TAF usage by removing argument '-nonew_arg'
512      This changes TAF subroutine argument list (ordering of active var.)
513      Omission of this flag leads to incompatibility w.r.t. TAMC
514      To restore TAMC-compatibility, need following modifs:
515      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
516      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
517      Tested TAF version is 1.9.22
518      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
519    
520    checkpoint60
521    --->>> This is the last checkpoint for which generating the adjoint
522    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
523    --->>> by default.
524    --->>> Future checkpoints will ommit this flag by default.
525    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
526    o pkg/grdchk: Add gradient check to etan0 perturbations.
527    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
528    o pkg/autodiff: more flexibility in zeroadj.
529      model/src: modifying do_oceanic_phys.F accordingly.
530    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
531    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
532      special setup of gmredi for which the adjoint is stable
533      enough for parameter optimization.
534    o bridging the gap between eddy stress and GM.
535      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
536          along with a change in CPP option (now ALLOW_EDDYPSI).
537      -> when using GM w/ GM_AdvForm:
538          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
539          is applied either in the tracer Eq. or in momentum Eq.
540          depending on data.gmredi (intro. GM_InMomAsStress).
541      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
542      The key modifications are in model/src/taueddy_external_forcing.F
543      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
544    
545    checkpoint59r
546    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
547      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
548      fix option to read coriolis(@ cell-corner) from files with CS-grid.
549    o pkg/mnc: add some attributes to standard 1D-coordinate variables
550    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
551      mass points, when using mnc for output
552      - add runtime parameter (missing_value, missing_value_int) to override
553        default (which is the value of getcon('UNDEF'))
554    o pkg/mnc: prepare mnc for the actual use of missing values with the
555      diagnostics package: small fix in mnc_cw_readwrite.template and more
556      initialisation of never used fields
557      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
558      versions
559    o pkg/thsice/thsice_ini_vars.F added default initial values so that
560      thermodynamics sea ice solver does not blow up when some initial fields
561      are missing.
562    o move from external_forcing_surf.F to ini_forcing.F
563      the p-coord. hack consisting in using pLoad to set phi0surf ;
564      update output of tutorial_global_oce_in_p (affected @ truncation level).
565    o Freshen up a bit hs94.1x64x5, notably:
566      remove rotationPeriod and tRef=5*0. (adjoint only), and add
567      exactConserv=.TRUE.
568    o pkg/generic_advdiff:
569      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
570      applies to files where Temperature & Salinity 2nd Order moments are used.
571    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
572      this uses a dynamically allocated internal state data structure
573      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
574      and requires a fortran 90 compiler
575    
576    checkpoint59q
577    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
578       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
579    o Refresh tutorial_global_oce_biogeo, notably:
580      - change bathymetry (put back seamounts in ACC, use hFacs)
581      - change EOS (POLY3 --> JMD95Z)
582      - use Bryan-Lewis vertical diffusivity
583      - use multidimensional advection
584      - remove old virtual virtual in dic pkg, now done through ptracer pkg
585      - change a couple of parameters in dic pkg
586    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
587    o pkg/obcs: change default to OBCSfixTopo = .true.,
588      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
589      - replace "debugMode" with "debugLevel .GE. debLevB"
590    o implementation of TAF directives for gchem,cfc,dic
591    o remove "exp5" (replaced by tutorial_deep_convection).
592    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
593      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
594      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
595      --> changes results in exp4, seaice_obcs
596    o tutorial_deep_convection :
597      update the set-up and increase resolution and domain size ; start
598      from pseudo initial conditions = output at t=120mn in order to see
599      something happening when running testreport.
600    o pkg/seaice: add os7mp as an advection scheme
601                  add check for advection schemes
602                  add a flag for restoring T and S underneath sea ice
603    o pkg/my82: add netcdf-support and diagnostics
604    o thsice pkg:
605      - Now hsMax limits snow height by turning it into ice following
606        flooding scheme (and now conserving energy)
607      - Slight rewriting of the formula in thsice_calc_thick.F
608      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
609      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
610    
611    checkpoint59p
612    o gchem / dic / cfc :
613      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
614      - add new parameter files: "data.dic" & "data.cfc" ;
615      - various re-arrangement in initialisation & header file ;
616      - fix tutorial_global_oce_biogeo for multi-threaded test.
617    o pkg/dic: test for "pickup_dic" file when restarting ;
618      if no pickup-file, can restart with a re-initialised pH (same as it did
619      before) providing pickupStrictlyMatch is set to False.
620    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
621      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
622    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
623      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
624    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
625     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
626       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
627    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
628       scheme to use for vorticty-term ;
629     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
630       (with default selectVortScheme, return to original discretisation)
631     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
632    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
633    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
634      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
635      also fix diagnostics VISCAHW & VISCA4W.
636    
637    checkpoint59o
638    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
639    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
640      move a few statemens out the main loop into separate loops
641    o pkg/shelfice:
642      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
643        (kg/m^2/s), does not break tests, because in verification/isomip,
644        rhoConstFresh=rhoConst (by accident)
645      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
646      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
647        new file model/src/seawater.F, so that they are available for all pkgs.
648      - convert potential temperature into in-situ temperature. This changes the
649        isomip tests => update tests
650    o add a flag writePickupAtEnd (default=true) to be able to suppress
651      writing a pickup at the last timestep
652    o tools/mpack-1.6 :
653      - disable automake (not working) and autoconf (not needed).
654      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
655        also cleaner with much less compilation warnings.
656    o pkg/profiles:
657      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
658      (for "less than 32 characters name" compiler requirement)
659    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
660      conditions that have a different sampling frequency than S/T/U/V obcs
661    o pkg/diagnostics (stats-diags):
662      - fix global Min/Max in case 1 processor get only empty tiles
663    o genmake2: replace (4 times)
664         make genmake_tc_1.o >> genmake_warnings 2>&1
665      with
666         COMM="$CC $CFLAGS -c genmake_tc_1.c"
667         echo $COMM >> genmake_warnings
668         $COMM >> genmake_warnings 2>&1
669      to make genmake2 always see the value of CC as specified in the optfile.
670    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
671      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
672      - modify verification advect_cs test to test SOM-advection on CS-grid.
673    o pkg/ctrl:
674      - Rewrite of ctrl_map_ini_ecco.F,
675        introducing a generic routine (ctrl_map_ini_gen.F).
676      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
677    
678    checkpoint59n
679    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
680      number in dedicate array "hdiag":
681      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
682        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
683      - many small changes (integer format) for large number of diagnostics
684      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
685        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
686    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
687      usingSphericalGrid, this allows to define the rotated grid coordinates
688      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
689      geographical coordinates according to the inverse of the rotation defined
690      by the Euler angles, so that Coriolis parameter and online-interpolation by
691      exf works with the geographical coordinates on XC/YC/XG/YG.
692      Naturally, this feature does not work with all packages, so some
693      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
694      profiles), because there the coordinates are assumed to be regular
695      spherical grid coordinates.
696    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
697      - introduce isopycnal diffusion coefficient control.
698    o tools/adjoint_options:
699      - additional control vector components.
700    o pkg/mnc: have mnc create marginally meaning full coordinate variables
701      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
702    o pkg/mypackage:
703      - add example of read/write pickup for state-var ;
704      - add entry points to the main code for state-vars diags & write-pickup.
705    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
706      transitions for useExfYearlyFields
707      - add new subroutine that determines the file to read from for
708        use*YearlyFields = .TRUE. and .FALSE.
709      - add a verification experiment to global_with_exf that tests
710        useExfYearlyFields with USE_EXF_INTERPOLATION defined
711    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
712      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
713      subroutines (which could be generated from a template, because they are
714      almost identical), for now they are included in obcs_prescribe_read.F for
715      simplicity
716    o pkg/exf:
717      - add a little more diagnostic to exf_interp_read (in analogy to
718        mds_read_field, can be turned off with debugLevel < debugLevA=1)
719      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
720        ugly but fast by unrolling short inner loops, inserting a unroll=8
721        directive in routine lagran, and splitting a loop and making do while the
722        outermost loop (the latter requires the intoduction of index arrays)
723    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
724    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
725      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
726    o verification/seaice_obcs: updated for restart test and latest options
727    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
728      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
729      for now this is only available for the C-grid code and also within
730      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
731    
732    checkpoint59m
733    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
734      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
735    o gad_som : fix flux output (& diagnostics) to have same units as other  
736      advection scheme fluxes (was previously multiplied by deltaT).  
737    o added verification/seaice_obcs both to test seaice open boundaries
738      and to provide an example matlab scrpt for generating them
739    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
740    o pkg/salt_plume: clean up salt_plume_frac.F to
741      remove redundancy in PlumeMethod 1 and 4
742    o pkg/kpp: added saltplume diagnostics
743    o pkg/obcs and pkg/seaice:
744      - do not set uice and vice to zero when OB*icefile are unspecified
745      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
746      - moved seaice tracer obcs after call to seaice_growth
747    o pkg/salt_plume: added various options for salt plume depth
748      criterion and for vertical distribution of the salt
749    
750    checkpoint59l
751    o pkg/ptracers: new version of ptracers pickup:
752      read meta file and write only fields which are needed to restart.
753      ( same logic as main pickup file ; also using pickupStrictlyMatch )
754    o pkg/seaice:
755      - add timescale for melting due to warm mixed layer as a means of
756        setting SEAICE_availHeatFrac more conveniently
757      - add a CPP-flag/runtime parameter check for flooding algorithm
758      - reformulated availHeat in seaice_growth.F to be independent of AREA
759    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
760      unit changes
761    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
762    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
763      SX vector computer.
764    o pkg/seaice:
765      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
766        seaice forcing fields can now be read only through pkg/exf
767      - removed some unused halos
768    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
769    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
770      or U/VICE from U/VWIND before computing U/VSTRESS
771    
772    checkpoint59k
773    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
774      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
775    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
776      all experiments pass when compile with un-initialised var. checking option.
777    o added pkg/salt_plume
778    o script to test restart (for now, in MITgcm_contrib/jmc_script)
779    o pkg/seaice: new read/write pickup version.
780      read meta file and write only fields which are needed to restart.
781      ( same logic as main pickup file ; also using pickupStrictlyMatch )
782    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
783    o lab_sea.hb87: modify the domain & update output.hb87.txt :
784      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
785      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
786      process. Fixed here by closing the domain at the Northern boundary.
787    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
788    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
789      a set of consecutive levels in/from a 3-D array.
790    o pkg/ptracers:
791      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
792      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
793    
794    checkpoint59j
795    o in pkgs: dic, obcs, offline, rbcs:
796      standard way to compute coeff. for time interpolation between 2 time reccords
797      which retains full precision (& make results less dependent on compiler).
798      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
799    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
800      packages instead of reading ice cover and wind speed separately
801    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
802     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
803      to allow to compile customized code before the update)
804    o cleaning-up:
805      - fix CPP instruction syntax in pkg/obcs
806      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
807        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
808      - fix some threads issue in IO parts.
809    o pkg/dic:
810      - add tons of "_d 0" (--> much better testreports !)
811       and then update outputs of tutorial_global_oce_biogeo
812    o pkg/mom_fluxform:
813      add a special version of momentum advection intended to conserve momentum
814      next to a bathymetry step or a coastline edge. (default = off = #undef)
815    o new read/write pickup version:
816      - for now, only implemented for main (mdsio) pickup file.
817      - write out only what is needed to restart; merge pickup_nh , pickup_ph
818        and main pickup together.
819      - read meta file; read only what is needed to restart; stop if a field
820        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
821        if it make sense (even if the restart is not perfect).
822      - if no meta file, assume that pickup to read corresponds exactly to
823        a pickup that would currently be written.
824      - read pickup written in the old format (until checkpoint59i) if it
825        recognizes an old meta file (no field-list).
826      - add a meta file in exp. which starts from a pickup: 2 cases:
827        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
828         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
829        b) a meta file describing the content of the associated pickup file
830         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
831    o pkg/mdsio & pkg/rw:
832      - new routine to read a meta file ; new set of routine to read
833        Multiple-fields file (with meta file).
834    o added open boundary conditions capability for seaice
835        HSNOW, HSALT, UICE, and VICE
836    
837    checkpoint59i
838    o adjoint:
839      * fix multiDimAdvection adjoint
840        (partial recomputation problem by TAF for fVerT(:,:,kDown)
841        and comlev1 size definition (maxpass vs. max. number of tracers)
842      * verification/global_ocean.90x45x15 adjoint now tests
843        NLFS and multiDimAdvection using DST3 (=30)
844      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
845    o pkg/kpp: add "_d 0" to real constant (if missing);
846      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
847      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
848    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
849      for internal parameters related to restart process (formerly from PARAMS.h)
850      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
851    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
852      as argument. (only atm2d & obcs write_pickup have not yet been updated)
853    o pkg/monitor:
854      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
855      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
856      - account for deep Atmosphere factor and density factor (anelastic)
857    o added open boundary conditions capability for seaice HEFF and AREA
858    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
859      thermodynamics
860      - requires a little reorganization, which affects the testreport results
861        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
862        so that now the conservative form is tested
863      - add a few comments
864    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
865    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
866    o add new diagnostics to seaice: advective, diffusive fluxes (only for
867      multidim-advection, for scheme 2 they are not filled) and transports,
868      thermodynamic growth rates
869    o change units of EmPmR (inside the code, + within coupling interface)
870      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
871      Affects results @ truncation level (cg2d match) and update output of
872       experiments: lab_sea(6), global_ocean.90x40x15(10),
873      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
874      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
875      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
876      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
877    
878    checkpoint59h
879    o pkg/exf:
880      - improve vectorization by moving if-statement out of loops in
881        exf_mapfields, exf_radiation
882      - exf_bulkformulae.F: introduce 2D fields and vectorize code
883    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
884    o testreport:
885      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
886        monitor & update offline_exf_seaice exp. output.
887      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
888    o pkg/seaice:
889      - bug fix in the evp solver: boundary conditions were affected be
890        masking of zMax/zMin (changes results)
891      - minor bug fix in boundary conditions in seaice_calc_strainrates
892        (changes results for no_slip)
893      - seaice_lsr.F: make interpolation of eta dependent on boundaries
894      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
895      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
896        stress formulation and no-slip boundary conditions
897    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
898      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
899    o pkg/seaice: a first HSALT time stepping equation has been checked in
900    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
901      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
902      without requiring DO-IF statements
903    o pkg/thsice:
904      use continuous power-law function for partition of energy between lateral
905      melting/freezing and thinning/thickening ; old code using step function
906      still available with #undef THSICE_FRACEN_POWERLAW
907      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
908    o testreport: change AD testing : check against results/output_adm.txt
909      using same scripts as for forward test.
910    
911    checkpoint59g
912    o adjoint testing: in preparation for changing testreport:
913      - output format: cost and grad written on separated lines
914      - ad output results in directory "results" (instead of "results_ad")
915    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
916    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
917    o pkg/ecco: allow user defined cost function contributions
918    o testreport:
919      Allow to choose (per experiment) the list of tested output variables
920       and the main variable (used to issue a pass/FAIL ) ;
921      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
922      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
923      Also modify printing of summary:
924       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
925       b) echo the list of tested variables in the individual summary.txt of
926          each experiment.
927    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
928      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
929      (but still depend on the tile decompostion of the domain).
930    o pkg/seaice: change a discretization detail to make the B-grid code
931      "more symmetric". This change is likely to remove all "ridges/leads" that
932      where quasi-aligned with the grid in B-grid solutions. It may also be
933      the solution to the stress coupling issues with the B-grid.
934    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
935      remove .cvsignore from input dir. (since testreport no longer run here).
936    o pkg/thsice:
937     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
938     - fix reshaping of sea-ice just after advection:
939       melt all the ice only if ice-volume is too small.
940     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
941       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
942     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
943    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
944      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
945    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
946      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
947      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
948      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
949      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
950      -> update output.txt
951    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
952     this affects truncation error: -> update output.txt of exp:
953      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
954      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
955    
956    checkpoint59f
957    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
958    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
959      a bounded range (in forward mode)
960    o pkg/ecco, ctrl, autodiff and mom_common:
961     internal parameter controls, completements of implementations
962    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
963    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
964      (not seem any difference in testing results).
965    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
966       at face corners.
967    o pkg/generic_advdiff:
968     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
969      loop range indices for computing vertical advection tendency
970      and do the calculation in the interior only (no overlap) ;
971      for now, only implemented for SOM advection (to save CPU time).
972     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
973    o exch2 adjoint
974      First set of changes:
975      - add exch2 hand-written adjoint templates
976      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
977        This will require cleanup in pkg/autodiff/*.F
978        (changed routines currently kept separate in verif. code/)
979      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
980        that used to hide exch2 or cubed-sphere specific code
981        (commented via 'cph-exch2')
982    o pkg/seaice
983      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
984    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
985       output of global_ocean.cs32x15.thsice .
986    
987    checkpoint59e
988    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
989      for B-grid vector (not yet tested) and C-grid vector (<- only used
990      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
991    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
992      (#ifdef ALLOW_SALT_PLUME)
993    o gather_2d/scatter_2d: removed halo regions
994    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
995      scheme and the corresponding test case (under front_relax dir). For now,
996      only available with Skew-flux form and not yet tested in realistic set-up.
997      adjoint: store directives updated, but gradient checks deteriorated,
998      so maybe GM/Redi adjoint is now broken.
999    o seaice adjoint
1000      * add AREA, HEFF, HSNOW as control variable
1001        (should not change lab_sea results)
1002      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1003    o pkg/seaice:
1004      * added computation of saltFlux in seaice_growth;
1005        For time being, sea ice salinity is assumed constant
1006        contribution of snow flooding to freshening of sea ice is neglected.
1007        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1008        defaults to 0.0 in order to maintain backward compatibility.
1009        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1010      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1011      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1012        heat content used to melt or grow ice
1013      * commented out cap of HICE: it helps keep ice thinner
1014      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1015      * applied OBCS T/S mask to HEFFM sea ice mask
1016    
1017    checkpoint59d
1018    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1019     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1020     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1021    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1022     and change default value of parameter "GM_Small_Number";
1023     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1024       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1025       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1026    o pkg/ecco: cost function when applying pkg/smooth to controls
1027    o pkg/ctrl: add forcingPrecond run time parameter
1028    o pkg/seaice:
1029     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1030     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1031       changes verification/lab_sea
1032     - rearrange implicit part of u-equation in LSR solver to make it easier to
1033       read, understand, and debug. This causes changes at the truncation level.
1034     - fix (serious) bug in the boundary conditions (sign error in the implicit
1035       part) of the LSR solver. Changes all LSR results.
1036     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1037       is initilized with small values - does not change lab_sea results.
1038     - added HsnowFile initialization capability
1039    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1040     initialization of pkg/smooth and application to control vector
1041    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1042    o dependencies: pkg/profiles requires pkg/cal
1043    o pkg/profiles:
1044     - added option ALLOW_PROFILES_GENERICGRID
1045         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1046         that interpolation information (grid points and coefficients) is provided
1047         within the netcdf input files.
1048         -> sample matlab scripts can be found in MITgcm_contrib/gael
1049         that allow you to prepare netcdf input files.
1050     - also modified: cleaner include statements, cleaner error print statements,
1051       cleaner stops when error, and more tests of the netcdf input files consistency.
1052    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1053    o pkg/seaice:
1054     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1055       requires a new routine: seaice_diagnostics_fill.F
1056     - make sure that seaice does not move if not forced (pressure replacement
1057       method, Hibler and Ip, 1995), changes results
1058     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1059     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1060       It is turned off by default (=-1.), because it changes the results.
1061     - make it possible to read AREA from a file, too.
1062    
1063    checkpoint59c
1064    o add S/R and diagnostics for oceanic mixed-layer depth
1065    o move GMRedi call after all vertical mixing schemes (including KPP)
1066    o pkg/thsice:
1067     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1068      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1069    o pkg/obcs:
1070     - bug fix for balance code
1071    o pkg/seaice:
1072      - allow values of SEAICE_elasticParm > 1
1073      - add new parameter SEAICE_evpTauRelax as an alternative
1074        to SEAICE_elasticParm
1075      - make lsr boundary conditions free slip (by default), changes result
1076      - add code for no slip boundary conditions for lsr
1077      - set minimum of zeta to zero (and not 4e8) (changes results)
1078      - add a cap on AREA after advecting AREA if seaice_growth is not called
1079    o change calculation of Visbeck K:
1080      - no longer depend on tapering scheme; instead, compute slope (limited
1081        by GM_maxSlope). this is equivalent to what was comuted before with
1082        clipping or linear tappering.
1083      - fix vertical averaging (wrong by 1/2 level)
1084      - leave the old version (but will not be maintained) within
1085        #ifdef OLD_VISBECK_CALC / #endif
1086      - update output of exp. ideal_2D_oce
1087    o change error catch in calc_r_star to improve vectorization
1088    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1089      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1090    o adjoint:
1091      Re-organized adjoint checkpointing according to Matt Mazloff
1092      (but with modifs/completions/cleanups)
1093      Storing is now bundled into large arrays to optimized I/O
1094      (and second step in cleanup of the_main_loop)
1095    
1096    checkpoint59b
1097    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1098      - export/import (between ocean & coupler) fields needed for ocean DIC.
1099    o pkg/seaice:
1100      - get rid of three more exchanges seaice_calc_viscosities (required
1101        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1102      - bug fix in seaice_ocean_stress (update of lab_sea required)
1103      - reduce loop boundaries to necessary minimum also in seaice_evp
1104      - go back to the old way of computing deltaC/Z as the adjoint likes that
1105        better
1106    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1107      passive tracer to an Age Tracer) + update output.txt
1108    o pkg/exf:
1109      - implement A-grid / C-grid selection for wind-stress input files.
1110      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1111      for now, in exf_bulk_largeyeager04.F only :
1112      - change implementation for case where windspeed + 2. components wind-stress
1113        are read-in. AND use rhoConstFresh to convert evap.
1114    o pkg/seaice:
1115      - use correct EXCH_UV for wind-forcing (on A-grid).
1116      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1117        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1118    o pkg/exf:
1119      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1120      EXF_INTERPOLATION:
1121      - merge global_with_exf/code version of exf_interp_read.F
1122        to the main code ;
1123      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1124        reading the file ; Important: This options needs to be defined to recover
1125        previous code.
1126        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1127      - no longer loose real*8 precision along the way when using exf_iprec=64.
1128    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1129      - change discretisation of evp-solver in order to avoid another exchange
1130        (changes lab_sea) and clean up a little
1131      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1132        help the adjoint (this also changes the results slightly)
1133      - add a few "_d 0" where they had been missing in seaice_evp.F
1134      - cleaning up: remove unused seaice_calc_rhs.F
1135    o pkg/exf: some cleaning-up:
1136      - change various "constants" into runtime parameters
1137      - cleaned-up Large&Yeager04 routine which should eventually
1138        replace exf_bulkformulae.F (changed names of S/R and CPP)
1139        and merged various ALLOW_ATM_WIND options
1140     only used with thsice pkg (in thsice_get_exf.F):
1141      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1142        which are used when useStabilityFct_overIce=TRUE (= the default)
1143      - change default values of ice & snow emissivity and scale downward LW
1144        by ice & snow emissivity.
1145    o pkg/thsice:
1146     fix few little problems, in thsice_calc_thickn.F:
1147      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1148      - melt only laterally if hIce < hThinIce (as the comments say)
1149      and in thsice_extend.F:
1150      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1151      - start to form ice as soon as the minimum ice-volume is reachable.
1152     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1153      and cpl_aim+ocn
1154    o pkg/kpp
1155     - move computation of surface related input fields to KPP into a new
1156       subroutine kpp_forcing_surf.F
1157     - remove wrong (within bi,bj loops) EXCH calls.
1158     - little cleaning (add argument myThid in last position, cvs header ...)
1159     - for now, fix conservation problem by exchanging KPPviscAz (may not
1160       be the best fix)
1161    o pkg/seaice
1162     - check for inconsistent evp parameter/cpp-flag combination
1163     - remove leftover errIO flat for obsolete name list error handling
1164    o OpenAD
1165     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1166    
1167    checkpoint59a
1168    o pkg/seaice: some parameter clarifications and a little bit of clean up
1169    o pkg/thsice: rename run-time parameters:
1170       himin       -> hIceMin
1171       himin0      -> hThinIce
1172       hihig       -> hThickIce
1173       i0          -> i0swFrac
1174       transCoef   -> bMeltCoef
1175       frac_energy -> fracMelting
1176      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1177       with default values (for now) that do not change the results.
1178      remove old version of thsice vars advection in pkg/seaice.
1179    o in FFIELDS.h:
1180      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1181      - make pLoad & sIceLoad always available (but still only used if
1182         ATMOSPHERIC_LOADING is #define).
1183    o pkg/kpp: replaced _KPP_RL with _RL
1184    o bug fixes for vertical diffusivity computations when both KPP and
1185        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1186        are no longer updating the vertical diffusivity array
1187        (passed as argument) but are (re-) setting those arrays.
1188    o pkg/seaice: fix bug in evp solver, while doing that
1189      - change (improve?) discretization of stress computations for both
1190        cgrid-lsr and evp solver
1191      - add a new routine to compute strain rates
1192      - the above changes lab_sea results
1193      - add no slip conditions for evp solver (off by default), lsr-version
1194        may follow
1195      - fix exchange for shear at Z-points (does not change lab_sea)
1196      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1197        (to force the user to pick a time step since there is not "safe" way
1198        of choosing it)
1199      - add principal stress diagnostics
1200      - rearrange fields for evp a little to avoid having to call a: too many
1201        exchanges and b: exchanges for stress trensor components which we do
1202        not have.
1203      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1204        of evp, complete rewrite for lsr case (latter is does not yet work
1205        in all cases)
1206    o pkg/kpp: add code to have mixing in shelf ice caverns
1207      - add myThid to all kpp routines (long overdue)
1208    
1209    checkpoint59
1210    o pkg/exf:
1211      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1212        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1213      - move exf header files from lower_case.h to UPPER_CASE.h ;
1214        add missing cvs Header & Name
1215      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1216      - add namelist param. selectStressGridPosition, exf_monFreq
1217      - retire many _CLIM routines, and remove data.exf_clim
1218        + params moved to data.exf
1219        + climsst, climsss now handled by exf_set_gen, i.e.
1220          climss?period=0 refers to constant field,
1221          climss?period=-12 to monthly forcing
1222      - split up namelists in data.exf
1223    o pkg/seaice:
1224      - remove seaice_exch and seaice_exch_uv
1225      - remove superfluous exchange of theta
1226      - add myThid to seaice_budget_ocean/ice
1227      - add new interface for atmospheric wind forcing (C-grid only)
1228        + new routine
1229        + two new field (taux, tauy for stress over ice)
1230        + removed one global field (DAIRN) for C-grid case only
1231    o pkg/thsise
1232      - 2nd set of modifs for thsice adjoint in conjunction with exf
1233    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1234    
1235    checkpoint58y_post
1236    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1237      vertical diffusivity, similar to that in MOM4; turned on using
1238      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1239      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1240    o Added capability for 3D specification of background vertical diffusion
1241      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1242      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1243      "data" file that contains the 3D vertical diffusivity coefficients.
1244    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1245      - add code within pkg thsice to advect & diffuse sea-ice fields
1246      similar to (and will replace) what has been added in  seaice_advdiff.F,
1247      but: - conserving Mass, Heat & Salt.
1248           - better when using non-linear advection scheme (not yet fully tested)
1249           - can also be used in atmospheric set-up (for now, only the diffusion).
1250    
1251    checkpoint58x_post
1252    o IO option for global-file compact format:
1253      - add options when generating topology (utils/exch2/matlab-topology-generator)
1254      - add I/O capability (pkg/mdsio).
1255      - adapt utils/matlab/rdmds.m to read this format.
1256      for now long-line format not yet supported by pkg/mdsio (& exch2).
1257    o shelfice: add a few diagnostics
1258    
1259    checkpoint58w_post
1260    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1261      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1262      (and replace horiVertRatio in NH code).
1263      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1264                         and tutorial_plume_on_slope (sensitive to truncation)
1265    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1266      directly to drive seaice model (C-grid only)
1267    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1268     - reintroduce computation of wind from stress,
1269     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1270       mass points to avoid tau = 0
1271     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1272    o rdmnc.m: make it work with "global" files created with gluemnc
1273    o rdmnc.m : some improvements in dealing with singleton dimension
1274      (tested on all testreport mnc output files).
1275    o genmake2: disable pkg/profiles if netcdf test fails.
1276    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1277    o move call to cal_readparms up to make calendar parameters/variable available
1278      to all packages
1279    
1280    checkpoint58v_post
1281    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1282      useDynP_inEos_Zc tested.
1283    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1284    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1285      and portions thereof.  See read_cs.txt for description and examples.
1286    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1287      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1288      following the great-circle arc between those 2 points.
1289    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1290      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1291    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1292     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1293     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1294     - still needs work (not working with some options ; efficiency to improve)
1295       and serious testing.
1296     - use this scheme for temperature & salinity in 2 advection test exp.:
1297       advect_xy & advect_xz, respectively.
1298    
1299    checkpoint58u_post
1300    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1301    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1302    o testreport: add option "-skipdir" to skip some test.
1303    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1304      momentum calculation.
1305    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1306    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1307      remove checkpoint.F and the_correction_step.F (no longer used);
1308      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1309    o add option (linFSConserveTr) to correct for tracer source/sink due to
1310      Linear Free surface
1311    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1312    o pkg/thsice: fix reading mnc-pickups
1313    
1314    checkpoint58t_post
1315    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1316    o pkg/mdsio:
1317     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1318       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1319       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1320     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1321     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1322       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1323     - new S/R (to replace MDSWRITEMETA), which allows to write more
1324       informations (variable names, time ...) to meta files.
1325     - modify rdmds.m to give back the meta file content.
1326    o pkg/diagnostics: change vertical interpolation to be safer, and more
1327       flexible (define p-levels to interpolate to in data.diagnostics);
1328      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1329       diagnostic pointer.
1330    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1331    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1332    o fix multi-category seaice:
1333     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1334       SEAICE_MULTICATEGORY
1335     - fix short wave heat flux
1336    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1337       and allow to use EVP solver. Change forward lab_sea: test both EVP
1338       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1339    o Initial check-in of lab_sea adjoint
1340      (very similar to natl_box_adjoint/code_seaice)
1341      * used C-grid and EVP solver
1342      * used KPP, GM/Redi
1343      * uses inAdExact=.TRUE.
1344      * gradient checks fail for both ADM and TLM
1345        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1346        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1347        issue is related to forward mismatch between g77 an ifort
1348    o pkg/seaice: overhaul of thermodynamics
1349     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1350     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1351     - move a few global fields out of SEAICE.h into seaice_growth.F and
1352       make them 2D (FICE/QNETO/ ...)
1353     - remove FO (it is the same as QNETO)
1354     - introduce a few local fields to avoid modifying external fields such
1355       as atemp, etc.
1356    
1357    checkpoint58s_post
1358    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1359      changed exf_set_gen.F so that
1360        genperiod=0 means input file is one time-constant field and
1361        genperiod=-12 means input file contains 12 monthly means
1362    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1363      this affects truncation error ; generate new output file for exp. which
1364      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1365        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1366        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1367        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1368        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1369        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1370    o start implementation of deep-atmosphere and anelastic formulation
1371    o verification: remove 2nd copy of input files and use script "prepare_run"
1372      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1373    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1374    o profiles: fix for multithreaded case
1375    
1376    o diagnostics: rename few diags:
1377      s/'PRESSURE'/'RCENTER '/g
1378      s/'TICE    '/'oceFreez'/g
1379      s/'TAUX    '/'oceTAUX '/g
1380      s/'TAUY    '/'oceTAUY '/g
1381      s/'SWFLUX  '/'oceQsw  '/g
1382      s/DIFx/DFxE/g
1383      s/DIFy/DFyE/g
1384      and add few ocean-forcing diagnostics:
1385      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1386    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1387      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1388      as actual snow thickness.  It now refers everywhere to effective snow
1389      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1390    
1391    checkpoint58r_post
1392    o modifications to pkg/seaice/growth.F, which change results of
1393      lab_sea experiment: fixes pertain to melting snow over open water, to
1394      masking EVAP under sea ice, and to using the correct AREA variable for
1395      computations of EVAP, PRECIP, HSNOW, and GHEFF
1396    o add ability to read bathy, salt, and theta using MNC (off by def)
1397    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1398      both are turned off by default and do no change any results
1399    o seaice advection with pkg/thsice: a step toward the use of non-linear
1400      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1401    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1402      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1403      in natl_box (affects results @ truncation level: update output.txt)
1404    o multi-threading and IO:
1405      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1406      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1407        (needed to work with SingleCpuIO): tested in all verif. exp.
1408    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1409      affects the results (but none of the verification test uses this scheme).
1410    o Adding some pkg/diagnostics capability to pkg/seaice
1411      (will certainly be subject to changes)
1412    o ctrl: adding new control variables:
1413      lwflux, lwdown, evap, snowprecip, apressure, runoff
1414    
1415    checkpoint58q_post
1416    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1417      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1418      high_res_cube configuration by 4% on Columbia.
1419    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1420      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1421      dynamical allocation (seems to work in multi-threaded).
1422    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1423      single CPU io) so that TAF does not have to see EESUPPORT.h
1424    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1425    
1426    checkpoint58p_post
1427    o obcs: stop if obcs is used with useCDscheme = .true.
1428    o shelfice:
1429     - fix a sign error so that no slip at shelfice interface works
1430     - remove stop for combination non-hydrostatic code and shelfice. That does
1431       not mean, that the results are correct, but at least they are numerically
1432       stable
1433    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1434    o added adjoint exch routined for all exch*3d* routines
1435      and updated flow directives
1436    
1437    checkpoint58o_post
1438    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1439      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1440    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1441      and clean-up reading/writing of pickup files.
1442    o fix local version of read/write pickup (NH part) in rotating_tank/code
1443    o simplify EXCH interface:
1444     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1445     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1446    o added the regrid package
1447    o shelfice:
1448     - add a simple boundary layer scheme to reduce noise
1449     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1450    
1451    checkpoint58n_post
1452    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1453       local variable (not in common block).
1454    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1455      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1456      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1457        to work with SingleCpuIO.
1458    o add "_d 0" to real constant of pkg/cfc subroutines ;
1459       update exp. cfc_exemple & tutorial_cfc_offline output files.
1460    o multi-threading and IO:
1461      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1462        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1463      - barrier before and after reading.
1464      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1465      - avoid using MDS_WRITELOCAL for LAND pkg output.
1466      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1467        common-block variables ; Allows multi-threading with master-thread IO.
1468    o change default MAX_NO_THREADS from 32 to 4 ;
1469      and stop cleanly when MAX_NO_THREADS is too small.
1470    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1471    
1472    checkpoint58m_post
1473    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1474       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1475    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1476       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1477       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1478    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1479        add MITgcm_tutorials (= code + all the tutorials)
1480    o ecco, option to compute cost for total ssh (mean+anom)
1481    o consistent with addition of ptracer and ssh in pkg/profiles
1482    o profiles: adding ptracer and ssh
1483    o testreport: change multi-test output-file name
1484      (from output.txt.{name} to output.{name}.txt)
1485    o profiles: now ok for mutli-tiles case
1486    o seaice: add 4 parameters for different advection schemes for area,
1487      (effective) seaice thickness, enthalphy, and snow height. Their default
1488      is the standard parameter SEAICEadvScheme
1489    o calc_gw:
1490     - add cosFacU in zonal viscous flux (harmonic.visc.).
1491     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1492       of tutorial_plume_on_slope.
1493    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1494    o calc_gw: true flux-form, account for horizontal grid spacing.
1495      update rotating_tank results, but not plume_on_slope (affected at
1496      truncation level, 11 digits).
1497    
1498    checkpoint58l_post
1499    o calc_gw:
1500     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1501     - remove side-drag for now (need to fix it); update plume_on_slope results.
1502     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1503    o commit code to make SST/SSS weights spatially variable
1504      (based on either variable in-situ or variable initial T/S weights)
1505    o pkg/ecco:
1506      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1507        now based on horizontally varying weights wthetaLev, wsaltLev
1508      * cost_averagesflags now returns year indices in addition to day, month
1509      * sflux balance is performed on annual basis
1510        (sflxumm, sfluxmm2, bal_sfluxmm)
1511      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1512        including separate counting and multipliers
1513    o pkg/rbcs
1514      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1515    
1516    checkpoint58k_post
1517    o testreport:
1518     - always build in dir. "build" (if not there, mkdir build instead of building
1519       & running in input)
1520     - run in dir run (if it exists), in build otherwise.
1521     - call prepare_run (if input/prepare_run exists)
1522     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1523    o pkg/exf modifications to interpolation and rotation routines for more
1524       reasonable treatment of North Pole singularity: for tracers North Pole
1525       value is set to northernmost zonal-mean value, for zonal velocity it is
1526       set to zero, and for meridional velocity it is set to northernmost value.
1527    o pkg/exf/exf_check_range.F
1528     - add tile index to diagnostics and move stop statement to the very
1529       end of the routine.
1530    o pkg/diagnostics: (diagnostics_main_init.F)
1531      define title of isomorphic variables according to the current config.
1532    o pkg/thsice with pkg/seaice dynamics:
1533    - fix domain of computation (interior only, required for exf) and do exchanges
1534    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1535    o towards a standard way of dealing with multi-threading in MONITOR
1536      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1537    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1538       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1539    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1540    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1541    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1542       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1543    o tracer advection:
1544     - clean-up and simplify calc_common_factors.F
1545     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1546       advection subroutine (but still not used within DST advection S/R)
1547    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1548    
1549    checkpoint58j_post
1550    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1551      from file (collects calls previously in FORWARD_STEP)
1552    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1553    o adjoint store dir. adjusted accordingly
1554    o genmake2
1555      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1556    
1557    checkpoint58i_post
1558    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1559      on wind stress (SEAICEstressFactor defaults to 1.)
1560    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1561      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1562    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1563      on CS-grid: no longer loosing mass.
1564    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1565    o pkg/ggl90: fix sloppy output and fix a bug
1566    o pkg/seaice: added SEAICEuseEVPpickup parameter
1567      - Set to false in order to start EVP solver with
1568        non-EVP pickup files when using SEAICEuseEVP
1569      - fix sign error in diffusion in seaice_calc_rhs
1570    
1571    checkpoint58h_post
1572    * Modifications for bottom topography control
1573      o replace hFacC by _hFacC at various places
1574      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1575      o add non-self-adjoint cg2d_nsa
1576      o update autodiff support routines
1577      o re-initialise hfac after ctrl_depth_ini
1578      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1579    * Adding verification for 5x5 box (4-layer) bottom topography control
1580    
1581    checkpoint58g_post
1582    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1583       used for mean seasonal cycle, mean diurnal cycle); add an example
1584       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1585    o pkg/ggl90:
1586      - add parameter (minimum surface kinetic energy)
1587      - fix bug (avoiding division by zero)
1588    o couple pkg/thsice to pkg/seaice:
1589      - modify advection in seaice to accomodate new scalar fields to be advected
1590      - only muliDimAdection scheme work with seaice/thsice
1591      - mapping of thsice-variables to seaice-variables, back and forth
1592      - does not break the verification experiments, but does not give the
1593        desired results either
1594    o pkg/seaice
1595      - make (default) second order advection a bit less confusing?
1596    
1597    checkpoint58f_post
1598    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1599      to pkg/seaice):
1600      - new routines thsice_map_exf and thsice_get_exf provide the interface
1601      - add an additional formal parameter to thsice_solve4temp
1602    o pkg/exf:
1603      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1604      - correct Stefan-Boltzmann constant
1605      - new parameter for longwave surface emittance
1606      - separate some stuff from exf_bulkformulae into new routines  
1607        exf_radiation, exf_wind
1608      - add new parameters and constants: longwave emissivity for ocean, ice
1609        and snow, evaporation parameters over ice
1610      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1611        either wind from stress or stress from wind
1612    o pkg/thSIce:
1613    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1614    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1615       and THSICE_CALC_THICKN
1616    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1617    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1618      to make debugging easier.
1619    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1620    o pkg/bulk_force:
1621      - clean-up comments and parameters ;
1622      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1623    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1624      generate new output for test-experiment: aim.5l_cs.thSI
1625    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1626      testreport accordingly
1627    
1628    checkpoint58e_post
1629    o SEAICE_CGRID adjoint done
1630    o R_STAR adjoint implemented.
1631      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1632      * need to sort out init. of h0facc, etc.
1633    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1634      to be able to use it in pure forward.
1635    
1636    checkpoint58d_post
1637    o upgrade simple test-experiment to tutorial example:
1638     step.1: duplicate the experiment and (step.2) will remove the old copy.
1639      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1640      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1641      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1642      tutorial_global_oce_biogeo    <- copy of dic_example
1643      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1644      tutorial_plume_on_slope       <- copy of plume_on_slope
1645      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1646      tutorial_global_oce_optim     <- empty for now (David ?)
1647      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1648     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1649    o correct a sign problem in cost_scat.F
1650    o obcs and ptracers: fix boundary conditions for advections schemes
1651      with larger stencil
1652    o thsice adjoint: start
1653    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1654      completeness
1655    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1656      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1657    o ptracers adjoint:
1658      * avoid extensive recomputatations
1659      * fix missing re-init. of gptr (missed by TAF)
1660    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1661      me to turn off the excessive output to STDOUT that this package produces
1662    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1663      and add those terms in Vector-Invariant formulation.
1664    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1665      if the control period (xx_hfluxperiod etc) is 0
1666    o in profiles pkg, clean routines and fix details
1667    o in ecco pkg, reading ssh data:
1668      fix problem in case the model does not start at iter0=0
1669    o fix mnc-pickup/restart for ptracers
1670    o new package prifiles:
1671      code to compute profile-based cost by Gael Forget
1672      (modifs in ecco, ctrl, autodiff)
1673    o Benign bug fix in initialization (spotted by M. Mazloff) of
1674      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1675    
1676    checkpoint58c_post
1677    o adjoint: finish NLFS adjoint and provide reference output in
1678      verification/global_ocean.90x40x15/results_ad_nlfs
1679    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1680      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1681      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1682      with SEAICE_CGRID defined.
1683    o move calendarDumps from "data" to "data.cal" and clean-up the code
1684      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1685    o add useEXF & useCAL flags (for now, set in hard-coded way)
1686    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1687      (were missing in NH mode, and wrong in quasihydrostatic mode).
1688      waiting for Chris updated version of calc_gw to add those CALLs.
1689    o fix bug in quasihydrostatic S/R ;
1690      add a test for this option: global_ocean.90x40x15.qshyd
1691    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1692      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1693    o add on/off flag useOffLine for package OFFLINE
1694    o seaice:
1695      - modify advection so that it works also on the C-grid
1696      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1697        problem in multi-tile runs with C-grid
1698      - add flags for clipping ice velocities and/or masking solver forcing
1699      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1700        C-grid solver
1701      - added a few comments to seaice_diffusion.F
1702      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1703        are now exclusive)
1704      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1705        required re-ordering the code a little:
1706       + make DAIRN global variable (defined in SEAICE)
1707       + move computation of the viscosities eta and zeta into a new separate
1708         routine (because I need to recompute them in seaice_ocean_stress.F)
1709    
1710    checkpoint58b_post
1711    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1712      update output.txt of exp. aim.5l_cs.thSI
1713    o various mnc cleanups and improvements:
1714      + shrink lookup tables by factor of ~4
1715      + better error reporting when running out of lookup space
1716      + able to handle longer path/file names (up to 500 chars)
1717    o adjoint:
1718      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1719      - TBD: "hidden" mom_vecinv recomp. in dynamics
1720    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1721     (allow to differentiate between forcing components using new integer flags:
1722      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1723     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1724    o ecco
1725      - enable trend removal from SSH anomaly obs.
1726    o adjoint
1727      - a fix for PmEpR when #undef EXACT_CONSERV
1728      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1729      - try to fix "hidden" recomp. in forward_step for NLFS
1730        (NLFS seems broken sometimes after I checked it in)
1731    o seaice:
1732     - add c-grid version of the dynamic solver:
1733       + three new routines that are the c-grid substitute lsr, dynsolver
1734         and ostres
1735       + put a few fields that were local to dynsolver into global common
1736         blocks, so that I can move the computation of stresses etc into
1737         seaice_lsr (saves coding but may break the adjoint).
1738     - replace more hardwired parameters by runtime parameters
1739     - add ice masks that mask the rhs of the implicit solvers where there
1740       is no ice (commented out in seaice_dynsolver, because i am not sure
1741       if this works properly), eventually this should replace the clipping
1742       of ice velocities in seaice_dynsolver to +/-40cm/s.
1743    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1744      include it only where its needed
1745    o move balancing of fluxes before the call of external_forcing_surf
1746    o seaice:
1747      - correct units of turning angles (now they are really in degrees)
1748      - move computation of GWATX/Y out of main routine into dynsolver
1749      - initialize GWATX/Y in seaice_init
1750    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1751      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1752    o seaice: add runtime flags for turning angles (default to zero)
1753    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1754      and trend from exf forcing and ctrl control adjustments
1755    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1756      (since checkpoint57x_post)
1757    o change the default rotation period to 86164.s = the Earth rotation
1758    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1759      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1760    o seaice advection: add code for choosing between the default (2nd order
1761      central differences) and multiDim advection schemes provided by
1762      pkg/generic_advdiff
1763    o seaice:
1764      - removed all references to SEAICE_GRID.h fields from
1765        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1766        (cubed-sphere configuration will change a little)
1767      - grid computations in seaice_init are obsolete now.
1768      - cleaned up code a little so that is easier to read (hopefully).
1769      - added new (better?) discretizations of default advection and diffusion
1770        (turn on with SEAICEuseFluxForm)
1771      - replace 1 in 3d global fields by kSurface in growth.F
1772      
1773    checkpoint58a_post
1774    o seaice:
1775      - bug fix in advect.F
1776    o shelfice:
1777      - separate shelfice load anomaly from pload (breaks with time
1778        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1779        Its default is 0., but it may be computed more cleverly from (unknown)
1780        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1781        done offline. A good approximation of the pressure load anomaly is
1782        necessary to avoid large initial adjustment processes underneath
1783        deep-reaching shelfice.
1784      - small fix in ISOMIP shelfice_thermodynamics
1785      - add more sophisticated thermodynamics of Hellmer (1989), this is
1786        now the default
1787      - give a few constants more intuitive names
1788    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1789      if bulk formulae are used in long integration (especially EmPmR). Turn
1790      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1791      if balancePrintMean, the imbalance that is substracted is printed to
1792      STDOUT.
1793    o fix bug (typo) in obcs_apply_eta.F
1794    o add a new package shelfice which enables us to model the circulation
1795      underneath shelf-ice with draughts of hundreds of meters.
1796     - works
1797     - to do: + include improved thermodynamics
1798              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1799                instead of new field kTopC
1800              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1801                instead of new field R_shelfIce and new code in ini_depth.F
1802                and ini_mask_etc.F?
1803              + adjust vertical mixing schemes?
1804    o seaice pkg:
1805     - add a cpp-flag to include a simple formula for a salinity dependent
1806       freezing point of sea water at the surface
1807     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1808       meridional stresses are now different (and hopefully correct)
1809    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1810       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1811       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1812    o pkg/diagnostics: add options and parameters for regional-statistics
1813       diagnostics ; define regions by reading a region-mask from a file
1814       (might add other options later)
1815    o pkg/bulk_force:
1816     - add option and parameters to use AIM surface-flux formulae.
1817     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1818       others forcing fields (defined in PARM05, parameter file "data") are loaded
1819       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1820     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1821     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1822     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1823       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1824     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1825    
1826    checkpoint58
1827    o add "--embed-source" option to genmake2 which, when the supporting
1828      tools can be compiled (as determined by genmake2) will turn on the
1829      embed_files package which then embeds the entire MITgcm source code
1830      (*.[fFhc] + Makefile) used for the build within the executable
1831      - requested by CNH but off by default
1832      - adds a paltry <9MB to the mitgcmuv executable in most cases
1833      - only writes the output when useEMBEDSRC in eedata is true
1834    o clean up 3-dim. relaxation codes:
1835      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1836      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1837      * Thanks to Tom Haine for testing!
1838    
1839    checkpoint57z_post
1840    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1841      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1842    o fix the pickup behavior for obcs in combination with ptracers
1843    o fix a bug in ptracers_external_fields_load
1844    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1845      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1846    o transfered surface NH pressure to eta field (if exactConserv).
1847    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1848         and update lab_sea output.txt file.
1849    o completing 3-dim. relaxation code: additional term
1850         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1851      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1852      * At compile time, in "EXF_OPTIONS.h" set
1853          #define  ALLOW_CLIMTEMP_RELAXATION
1854          #define  ALLOW_CLIMSALT_RELAXATION
1855      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1856          tauThetaClimRelax3Dim = 15552000.0,
1857          tauSaltClimRelax3Dim  = 15552000.0,
1858      * 3 cases:
1859          1) Use a constant-in-time 3-dim. field
1860          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1861          3) Real-time relax. to time-evolving prescribed field
1862    o Adding Laplacian-type smoothness constraint on
1863      initial and boundary (forcing) controls (ic, bc)
1864      * enable at compile-time via
1865        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1866      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1867      * Absolute scale somewhat unclear so far
1868      * no area weighting was included since no other cost term does so far
1869    
1870    checkpoint57y_post
1871    First step for a NLFS adjoint
1872    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1873    o new init. routines for calc_r_star, calc_surf_dr
1874    o still need to deal with ini_masks_etc
1875    o testreport seemed happy
1876    checkpoint57y_pre
1877    
1878    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1879    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1880    o add new offset feature to offline pkg (plus minor cleanup)
1881    o cfc fixes for final year of integration
1882    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1883      be in GCHEM_OPTIONS).
1884    
1885    checkpoint57x_post
1886    o fix testreport Pb in multiple test experiment.
1887    o cleanup our namelist syntax in verification:
1888      - make it more F95 standards compliant (some work still needed)
1889      - allows the vast majority of our tests to work with gfortran
1890    o Non-Hydrostatic:
1891     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1892     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1893    o Allow to apply AB on T,S rather than on AB(gT,gS):
1894     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1895     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1896       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1897     - need a "clever" read_pickup to restart from the other AB formulation
1898    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1899    o remove some unused variables (reduces number of compiler warnings)
1900    o adjoint
1901      * Disable useVariableViscosity for adjoint for time being
1902        (there are a number of extensive recomputations)
1903      * Initialize certain variables needed for adjoint
1904    
1905    checkpoint57w_post
1906    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1907                 fix the singleCpuIO RS version of MDSWRITEFIELD
1908       and add a WARNING if using globalFiles=T with multi-processors.
1909    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1910      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1911    o tracer advection scheme:
1912      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1913       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1914       was not very convenient).
1915      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1916       (further tests needed for the implicit DST & Flux-Limiter schemes).
1917    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1918      and sRef for convenience, handy, when you want to initialize
1919      ptracers in a large domain with a constant non-zero value. Also,
1920      untangle ptracers_init.F a little.
1921    
1922    checkpoint57v_post
1923    o change dome exp. to use variable viscosity in side-drag terms.
1924    o remove all the files from the cfc_offline test since they are now
1925      incorporated into tutorial_cfc_offline which has been producing
1926      identical results for a few days of testing
1927    o add new parameter: sideDragFactor to enable half-slip-side BC
1928      and change side-drag S/R to use viscosity from mom_calc_visc
1929      (can switch back by setting sideDragFactor=0.); affects results at
1930      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1931       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1932    o vorticity & strain are now computed without masking, to account for
1933      no-slip-side BC in variable viscosity calculation ; mask is applied
1934      anyway later on, before computing advection/coriolis terms.
1935    o modify exp4 to test new obcs support for reading from external files
1936      and for passive tracers
1937    o fix behavior of ptracers_monitor when monitor output is written to a
1938      netcdf-file; still not independent of monitor.F (writes in the same
1939      file).
1940    o change default value of tRef (put a uniform, meaningful value for ocean
1941      & atmos) and initialize sRef (was missing, as Martin mentioned).
1942    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1943      to be proportional to enstrophy dissipation length.  Thus,
1944       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1945      This is now consistent with Smagorinsky and with the manual.
1946    
1947    checkpoint57u_post
1948    o OBCS and PTRACERS: add open boundary support for passive tracers
1949      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1950        OB-values from file; this is not different from the way theta and salinity
1951        are treated
1952      - however, Orlanski-radiation conditions are not supported, and the model
1953        will stop if you use pTracers and Orlanski at the same time.
1954      - beefed up the rountine obcs_external_fields_load: now only those open
1955        boundary values are overwritten with values from files for which there
1956        are really files, otherwise the OB-fields remain untouched. This makes
1957        it possible to use different OBs at different ends of the domain (as
1958        with EXF)
1959    o reduce number of exch calls in shap_filt (s2).
1960    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1961      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1962    
1963    checkpoint57t_post
1964    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1965    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1966      same truncation, independent of the face number: affects affects several
1967      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1968    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1969      note that biharmonic viscosity + no-slip was not tested in any experiment.
1970    o fix bug in non-linear free-surf side-drag ; generate new output for
1971      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1972    o make mnc honor the writeBinaryPrec flag for most kinds of output
1973    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1974    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1975      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1976    o add brackets in multi-terms sum to get same truncation, independent of
1977      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1978      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1979    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1980      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1981      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1982      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1983      Suggested values of viscosity parameters found in mom_calc_visc.
1984      Many new viscosity diagnostics available.
1985    
1986    checkpoint57s_post
1987    o Add clearing-house for viscosity calculations, mom_calc_visc and
1988      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1989      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1990      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1991      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1992      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1993      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1994      ViscAhStrain and viscAhTension are now retired.
1995    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1996    o In response to JMC's bug report, genmake2 now ignores any soft-links
1997      that it finds in the *current* directory when searching for files.
1998      Soft-links found in any other source directories will still work as
1999      they did before.
2000    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2001      a C routine to unlimit the stack size
2002    o mnc-ify pkg/aim snapshot vars
2003    o mnc-ify pkg/land as requested by Daniel
2004    o various changes to mnc including:
2005      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2006      - output can now be grouped so that all files within a group
2007          change the ITER portion of their names in lock-step together
2008      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2009          and works with both EXCH1 and EXCH2 (but needs more testing)
2010      - writing works for all verification test cases w/ g77 on Linux
2011    
2012    checkpoint57r_post
2013    o make MNC variable initialization happen earlier
2014    o add diagnostics for (almost) each term of the momentum Eq.
2015    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2016    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2017    o remove MINIMAL_TAVE_OUTPUT option ;
2018      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2019    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2020      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2021    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2022    o add time-dependent SST, SSS control
2023    o cost terms in ecco/ modularized (new cost_generic.F)
2024    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2025    o new infrastructure for seaice model vs. obs misfits in seaice/
2026      * driver from the_main_loop.F is seaice_cost_driver.F
2027      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2028      * gradient check in Exp. 6a of natl_box_adjoint/
2029    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2030      (see README file)
2031    
2032    checkpoint57q_post
2033    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2034    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2035      - bug was reported by Jean-Michel and Ian Fenty
2036    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2037      update exp. cpl_aim+ocn output.
2038    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2039      Needed for high-res. runs with large global files
2040      to be able to limit tapelev size
2041    o Changed some tests for adjoint:
2042      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2043      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2044      * global_ocean.90x40x15/ back to default 3-level checkpointing
2045    o Modifications to enable scripted COMMON to MODULE conversion
2046      * verification/OpenAD/code/ has necessary scripts and description;
2047      * converts, compiles and runs successfully;
2048    
2049    checkpoint57p_post
2050    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2051    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2052      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2053    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2054    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2055      (was already the case for dissipation with mom_vecinv,
2056       and also the case for grad.PhiHyd when staggered-timeStep)
2057      This will allow to put dissipation out-off the AB time-stepping.
2058     Unfortunately, affects truncation error. Update output of exp. that "fails"
2059      (cg2d matching number) and leave the others for later: front_relax(10),
2060      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2061      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2062    
2063    checkpoint57o_post
2064    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2065      (2) its ready to be documented during the 20050801 DocFest
2066    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2067      for ideal_2D_oce and lab_sea on linux_ia32_g77
2068    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2069      in global1x1_tot/code_seaice_adj to access indices 32, 33
2070      (worth another tag)
2071    
2072    checkpoint57n_post
2073    o adding precip control xx_precip 32
2074    o adding swflux control xx_swflux 33
2075    o Replacing 10 forcing penalty cost routines by 1 generic.
2076    o Implementing partitioning in time-mean and variable adjustment
2077      for atmos. state.
2078    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2079  o in natl_box_adjoint:  o in natl_box_adjoint:
2080    * updated: results_bulk/    * updated exp 1 to 10
2081    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
2082    o updated global1x1/*_seaice_adj/
2083      to incorporate latest changes
2084    o enable useSingleCpuIO for mdsio vector routines
2085      (applies in particular to tapelev I/O)
2086    o removed inefficient K-loop in all active_file*control*.F
2087    
2088  checkpoint57m_post  checkpoint57m_post
2089  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 2666  o add two new packages
2666    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2667    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2668      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2669      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2670  o add offline package  o add offline package
2671  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2672    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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