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revision 1.169 by heimbach, Fri Jun 27 02:15:54 2003 UTC revision 1.1156 by rpa, Wed Sep 16 23:13:20 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    o pkg/layers:
7      Created a new package for computing volume fluxes in temperature or
8      [not yet implemented] density layers, e.g. for calculating residual
9      overturning circulations.
10    o pkg/diagnostics:
11      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
12    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
13    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
14      To avoid mixing type (RS/RL) of input/output array argument,
15      replace single mixed-type array with a pair from each type (RS/RL).
16    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
17      is now implemented for all pkgs (previously only done for the main pickup)
18    
19    checkpoint61u
20    o pkg/obcs:
21      - change OB?eta from _RS to _RL and put them into a separate commen block
22      - add code to read OB?eta from a file via obcs_prescribe_read: the code
23        compiles and does not destroy any other experiments, the data is read
24        properly, but the code is not tested in actual applications
25    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
26      create a meaningful unit attribute for the time coordinate variable
27    o pkg/ebm: add plenty of missing "_d 0" ;
28       update results of experiment global_ocean_ebm (fwd + adjoint tests)
29      Notes: several pieces of code only works for (very) specific set up
30       (domain size, lat range, etc ...); should be documented & stop if one
31       of those assumptions is not meet.
32    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
33       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
34          and offline_exf_seaice (seaicetd + adjoint).
35    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
36       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
37        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
38    o few changes to pass when compiling with strick checking of arguments
39       across S/R (allow to find few bugs in S/R calls).
40    o pkg/seaice:
41     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
42       2d-fields, for slightly better performance
43    
44    checkpoint61t
45    o pkg/seaice:
46     - remove unused variables in seaice_evp
47     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
48    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
49       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
50       each processor opens a different file (a fix from Matt).
51    o cg2d:
52       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
53       this reduces number of EXCH calls by 2 when using exch2.
54       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
55       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
56    o pkg/thsice:
57       add code for Near Infra-Red albedo (from Jeff)
58       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
59    o ini_model_io:
60       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
61       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
62       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
63    
64    checkpoint61s
65    o pkg/exch2 (exch2_rxN_cube*):
66       remove last BARRIER (no need to synchronise after getting data from shared
67       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
68    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
69      and generate new output (for the 2 tests) using default rotationPeriod.
70    o pkg/exch2:
71      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
72        (was already the case with AUTODIFF_EXCH2 defined)
73      - add bj in exch2 arrays and S/R.
74      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
75        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
76    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
77      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
78        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
79      - verification experiment natl_box.longstep
80    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
81      allow different versions of ifort (8 or 9) and different versions
82       of mpi (mpich or mpich2) to be used with the same optfile.
83      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
84       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
85    o pkg/seaice:
86      fix previous modif (3-level field removed) for old-pickup reading
87    
88    checkpoint61r
89    o pkg/seaice:
90     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
91      1. introduce fields for time step (N-1)
92      2. do not use levels 2 and 3 anymore (but keep them)
93      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
94         includes changes to pkg/thsice/thsice_get_velocity.F,
95         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
96         pkg/obcs/obcs_apply_uvice.F.
97     - completely remove code for leap-frog time stepping for second order
98       advection
99     - adjusted adjoint accordingly;
100       gradient checks have improved by an order of magnitude!
101    
102    checkpoint61q
103    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
104     - the boundary conditions along open boundaries are unclear, because the
105       associated masks are set to zero and are thus treated as closed when
106       applying the slip-boundary conditions.
107     - move initialisation of grid variables from seaice_init_varia to _fixed
108    o adding doc/diags_changes.txt
109    o model/src:
110      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
111       to avoid "_diags" naming if no relation to pkg/diagnostics.
112      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
113       file and only call PLOT_FIELD_XYZ if debugMode=T.
114      remove few PLOT_FIELD_XY calls outside initialisation.
115      remove few unnecessary BARRIER.
116    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
117      of salt_plume package in Southern Ocean
118    o pkg/thsice:
119     - fix hOceMxL in overlap (needed for sea-ice advection);
120       update output of experiment global_ocean.cs32x15.icedyn.
121    o pkg/seaice:
122     - make the (placeholder-)tracer IceAge a little more meaningful
123      by avoiding ridging of age due to convergent ice flow
124     - add diagnostics for surface temperature, atmospheric and oceanic
125       heat flux, and atmospheric and oceanic ice growth
126    
127    checkpoint61p
128    o eesupp (global_max & global_sum):
129     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
130     - remove starting & endding barrier (no longer needed)
131    o pkg/mdsio, writelocal:
132       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
133       (remove the STOP): uses shared buffer IO to store data from all threads
134       and then let master-thread write nThreads tiles.
135    o pkg/mdsio (read/write field):
136     - tiled IO done in 1 piece (all levels at a time);
137     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
138     - multi-threaded: allow to read/write local (non-shared) array
139       (was already working with singleCpuIO ; now works also without);
140       => no longer needs barrier call after reading a file (added inside
141       mds_read/write field).
142     - move barrier calls outside gather/scatter_2d to mds_read/write_field
143    o pkg/obcs/exf
144      - exf_getffieldrec.F: add a few ". _d 0" and
145                            add code to catch the case fldperiod = 0.  
146      - obcs_precribe_read.F: change if statements so that they match
147                              the variable type (_RL)
148      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
149        exf_iprec) as part of namelist EXF_NML_01
150    o pkg/mdsio:
151      - read/write tiled (local) files: read/write 1-level tile chunk at a time
152        (instead of segment of length sNx); expected to speed up tiled IO.
153    o pkg/exch2:
154      - take buffer copy from/to array out of S/R exch2_send/recv into new
155        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
156        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
157      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
158      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
159        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
160        including Topology header file (and common blocks).
161      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
162        remove 2nd exch call in exch2_s3d_rx (no longer needed).
163      - document S/R arg. list (+ update some comments)
164    o pkg/seaice:
165      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
166        temperature and humidity over sea ice based on climatological values.
167      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
168        of LSR (this change is expected to change the results slightly because now
169        it uses slightly difference moduli from the second last LSR solution, but
170        that is more consistent with the stress computations; this part of the code
171        is not tested in the verification experiments)
172      - fix diagnostics for flux of ice in case of B-grid
173      - turn strain rates eij and press into global fields within global
174        common block in SEAICE.h for more straighforward diagnostics
175      - fix diagnostics for principal stress components, press, zeta, eta
176        to give something meaning full
177    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
178      new output (all 4 tests) using default rotationPeriod.
179    o pkg KPP:
180      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
181      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
182        and normal grid from 1 to Nr)
183    o Fix computations of L4rdt in mom_calc_visc.F
184    o eesupp:
185      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
186      should be called before a "stop" if we know that all process are going
187      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
188    
189    checkpoint61o
190    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
191    o model/src/ini_curvilinear_grid.F:
192       compute angleSin/CosC when they are not read from a file
193    o pkg/seaice:
194       add pseudo time stepping for LSOR
195    o pkg/exch2:
196       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
197    o pkg/seaice:
198       Adding separate sea ice albedo, drag coefficients, and HO in Southern
199       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
200    o SingleCpuIO:
201       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
202    o pkg/seaice:
203       put exchanged variable in (local) common block for MPI+Multi-Threads
204       to work (necessary with exch1, and for now with exch2 too).
205    o verification: to get more experiments tested with mpi, mth and mpi+mth,
206      change tiling of:
207       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
208       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
209      update output of exp:
210       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
211       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
212      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
213                       (note: output.txt generated on faulks using only 1 tile)
214    o eesupp & mdsio (SingleCpuIO):
215     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
216       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
217       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
218     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
219     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
220       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
221    o pkg/exch2:
222     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
223       read parameter file "data.exch2" if it exists; otherwise try default regular
224       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
225     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
226       with new code (not to be used, just as a backup solution).
227     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
228       in utils/exch2/input.
229    
230    checkpoint61n
231    o eesupp & mdsio (SingleCpuIO):
232      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
233        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
234        receive real*4 array (instead of real*8) to read/write 32.bit files.
235        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
236         and remove new mapping S/R)
237    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
238      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
239        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
240        when using exch2. Add S/R to map global io-buffer to global model array.
241      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
242    
243    checkpoint61m
244    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
245      and add 3 other S/R for other types (R4,R8,RS).
246      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
247    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
248     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
249     - reduce number of macro definitions (keep only those which are used);
250       can always call directly the corrresponding S/R if needed.
251     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
252       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
253     Fixed wrong type of arg in:
254       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
255       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
256     To fix: global_sum of var in common block is wrong (multi-threaded) in:
257       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
258     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
259    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
260      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
261    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
262    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
263      edges are closed (zero depth); might happen with "blank tiles";
264      for now, disabled if using OBCS.
265    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
266      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
267    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
268      to reduce length of 1.D array print in STDOUT.
269    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
270      + use 48 tiles (16x8): this will allow to test "blank tiles".
271    o start to test MPI + multi-threaded (change testreport to skip tests
272      where number of tiles do not match).
273    o genmake2: add option "-omp" to turn on Open-MP ;
274      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
275    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
276      and keep the original tile numbering. Note: compatible with old
277      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
278    
279    checkpoint61l
280    o Overlaps had been forgotten in calculating ijk keys : fixed
281    o fix cyrus makedepend for gcc 4.4
282    o experiment fizhi-cs-aqualev20:
283      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
284      and generate new output. Note: new output is much closer to the old
285      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
286      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
287    o pkg/fizhi:
288     - change to avoid indices going deliberately over array-bounds
289     - remove unnecessary MPI stuff
290     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
291     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
292       does not go over array-bounds and therefore returns reliable output.
293     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
294       this S/R has 4 output arguments, which are used inside "get_alarm";
295       when it is called with the same variable "ndum" in place of several
296       output arguments, this produces weird side effect inside "get_alarm"
297      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
298       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
299       address) and produces error.
300    o tools/gemake2: (March 27-29 2009)
301      with option "-mpi": link *_mpi files from "MODS" dir (this is what
302      testreport does).
303    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
304    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
305       update lab_sea.lsr & lab_sea.salt_plume results
306    o pkg/seaice:
307      Major overhaul of the LSOR solver: change discretization from original
308      finite differences to finite volume. The old routine is still in the
309      file seaice_lsr.F and can be turned on with the CPP-flag
310      SEAICE_OLD_AND_BAD_DISCRETIZATION
311      Along with this change, the discretization of the strain rates is changed.
312      The same flag turns on the old discretization in seaice_calc_strainrates.F
313      All verification experiments with seaice are affected (except for
314      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
315      results by setting the above flag.
316      Further changes involve changes in defaults:
317      - ALLOW_FLOODING is defined and turned on by default
318      - SEAICEadvSnow = .true. is now the default
319      - SEAICEadvSalt = .true. is now the default
320      - SEAICEadvAge  = .true. is now the default
321      - SEAICE_clipVelocities  = .false. is now the default
322                                         (as per J. Zhang's recommendation)
323      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
324        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
325      - seaice_growth: replace computation of UG by a simple copy from wspeed
326    
327    checkpoint61k
328    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
329      seaice_lsr: fixed a few metric terms,
330                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
331                  add more debugging diagnostics
332      seaice_evp: removed superfluous many metric terms of FV discretization
333                  of stress divergence
334                  affects lab_sea, lab_sea.hb87
335      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
336                  of stress divergence for non-evp solver
337                  (this part is not tested anywhere)
338      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
339                  they were effectively only half slip
340                  affects lab_sea.hb87
341      updated all relevant verification experiments (except lab_sea//output_adm.txt
342        which was left over, but fails at level 7 & 6)
343    
344    checkpoint61j
345    o pkg/seaice: turn a few hard wired parameters into run time parameters
346    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
347      time in seconds as promised by the usints in seaice_monitor and exf_monitor
348    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
349      that are not cubed-sphere grids
350    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
351    o pkg/ctrl:
352      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
353    o non-hydrostatic (calc_gw.F):
354      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
355      update output of exp. global_ocean.cs32x15.viscA4
356    o remove backward compatibility for thetaMin,phiMin
357      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
358    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
359      interpolated wind field not only for curvilineargrid=.true., but also
360      for a rotated grid (rotateGrid=.true.)
361    o pkg/exf: add capability to bypass interpolation for runoff
362      by setting yet another CPP-flag
363    o eesupp/src, B-grid exchange:
364      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
365    o autodiff
366      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
367      allows to switch to single-prec common blocks;
368      corresponding switch occurs in tamc.h, integer isbyte
369      TAF store directivs "byte" and "kind" seem equivalent;
370      Most tamc.h have been updated correspondingly.
371    
372    checkpoint61i
373    o autodiff:
374      fix autodiff_sore/_restore indices for obcs
375      (spotted by I. Hoteit, M. Mazloff)
376    o pkg/autodiff, pkg/ctrl:
377      Add flag to reduce all tapelev I/O to single-prec.
378      In data.ctrl set
379        doSinglePrecTapelev = .TRUE.
380    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
381      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
382    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
383      real fresh water flux (not yet)
384    o pkg/mdsio & rw:
385     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
386     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
387    o pkg/flt:
388     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
389       init_fixed & ini_varia.
390     - clean-up & simplify linear interpolation S/R:
391       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
392     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
393     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
394     - add vert. coordinate & horiz. indices to output files.
395     - change vertical position in initial condition, from index to depth [m].
396     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
397       (easier to get to a curvilinear grid) ; delX,delY no longer used.
398    o pkg/ggl90: a few modifications:
399     - fix bottom boundary condition, and interpolation of KappaE
400       near top and bottom
401     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
402     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
403     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
404    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
405      (maintain temporary backward compatibility, until next checkpoint)
406    
407    checkpoint61h
408    o pkg/diagnostics with "periodic averaging diagnostics":
409      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
410    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
411    o pkg/obcs: fix loop ranges for balancing code
412    o pkg/flt:
413     - improve criteria for finding which tile owns a float.
414     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
415    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
416      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
417      with ocean biogeo)
418    o pkg/flt:
419     - do some cleaning and fix the restart ;
420     - add output.txt in flt_example/results to get this pkg tested.
421    o genmake2: add an EXTENDED_SRC option and flag.
422       for now, cannot be turned on on command line (only through genmake_local)
423    o pkg/mdsio: read/write vector:
424     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
425     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
426       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
427     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
428      (drop to 4 digits matching for grad). But this test does not look very
429      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
430    
431    checkpoint61g
432    o pkg/flt:
433      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
434       + make OPTIONS file more standard.
435      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
436      - fix _BYTESWAPIO CPP-Flag
437      - standard reading of file-parameter "data.flt"
438      - fix argument list of S/R FLT_RESTART
439      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
440    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
441    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
442      a still unfixed compiler/optimization bug
443    
444    checkpoint61f
445    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
446      update results of global_ocean.cs32x15.icedyn test.
447    o move getcon.F from model/src to pkg/fizhi.
448    o pkg/exf: add parameter for extrapolation of temp up to the surface
449       and option to prevent negative evap (in bulk_largeyeager04 only).
450    o Prather Advection scheme: fix tracer conservation for divergent flow
451      (e.g., when using NonLin Free-Surface).
452    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
453    o gmredi (Visbeck-variable-K):
454     - add more parameters to Visbeck-variable-K.
455     - use a 5 points average for dSigmaR in Visbeck-K calculation
456       (more "homogenous": same stencil and same weights as in dSigmaH)
457     - update output of ideal_2D_oce experiment.
458    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
459      (#undef REAL4_IS_SLOW)
460     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
461       coordinate variable
462     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
463       (surface forcing fields), removes some of the functionality
464     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
465     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
466       probably not all: copy _RS surface flux fields to RL field before
467       calling DIAGNOSTICS_FILL
468     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
469       real*4 (CALL EXCH_*_RS) versions.
470     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
471       (generate new output).
472    
473    checkpoint61e
474    o gmredi (Visbeck-variable-K):
475      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
476      - change computation of Visbeck-K where Slope > Smax :        
477        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
478        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
479    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
480      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
481    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
482    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
483      does not become too large (to avoid precision problems in implicit-diffusion
484      solver); update ideal_2D_oce output.
485    o pkg ggl90:
486      - in ggl90_cal.F: compute only one set of visc/diff, used to
487        step forward TKE/T/S/momentum
488      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
489        have Prandlt =1)
490    o gmredi (fm07):
491      - add lower limit on Transition layer thickness + lower limit on 1/lambda
492      - allow to set few more params from data.gmredi
493    o pkg ggl90:
494          - add missing sqrt(2) factor in computation of mixing length
495            scale in ggl90_calc.F
496            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
497    
498    checkpoint61d
499    o adjoint modifs
500      - adapt to new field rhoInSitu
501      - allow to revert from StoreDynVars2D, StoreDynVars3D
502        to individual fields
503        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
504    o store 3-D (in-situ) density in commom block (DYNVARS.h)
505     - save 1 rho computation.
506     - no longer modify T & S inland when using down_slope pkg.
507    o gad_som : allow to switch to SOM advection for T & S without corresponding
508      pickup files (using new S/R: MDS_CHECK4FILE).
509    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
510      (for useSingleCpuIO to work in multi-threaded)
511    o pkg/shelfice:
512     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
513       with SHELFICEtopoFile in data.shelfice
514     - move code for reading ice shelf topography and modifying hFacC into separate
515       subroutines of the shelfice package
516     - separate initialisation of "fixed" and "variable" variables
517     - kTopC is not (yet) replaced by kSurfC, although this is possible
518    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
519    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
520      and rename:
521      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
522      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
523    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
524    
525    checkpoint61c
526    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
527      to add mass source/sink of fluid in the interior (3-D generalisation
528      of oceanic real-fresh water flux).
529    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
530    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
531    o new pkg: down_slope
532      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
533      - presently, modify T & S inland (dwnslp_calc_rho.F).
534        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
535      - implementation for ocean in P-coords not tested.
536      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
537    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
538      (to facilitate conversion of oceanic pkg to p-coordinate).
539    o change FIND_RHO to FIND_RHO_2D :
540      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
541    o new pkg: cheapaml
542    
543    checkpoint61b
544    o exch2:
545      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
546      - no longer depend on the order sequence (N,S,E,W).
547      - 3rd exchange no longer needed (tested with 24 tiles).
548      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
549      - exch_UV_A-grid readily available (but not yet tested).
550      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
551      (both are no longer needed) in exch_uv: no effect in forward run; but
552       get truncation error differences with adjoint exch.
553    o exch2:
554     - change index-bounds storage (moved from target to local tile,
555       more intuitive this way) ; rename/remove some variables.
556     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
557    
558    checkpoint61a
559    o exch2/matlab-topology-generator:
560      fix bug in index bounds for N-S internal exchange (hard to tell if this
561      had any effect on the solution).
562    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
563      is exceeded
564    o testreport: modify syntax of awk, so that it works also with
565      awk, and not only with nawk and gawk
566    
567    checkpoint61
568    o autodiff
569      Change default for TAF usage by removing argument '-nonew_arg'
570      This changes TAF subroutine argument list (ordering of active var.)
571      Omission of this flag leads to incompatibility w.r.t. TAMC
572      To restore TAMC-compatibility, need following modifs:
573      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
574      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
575      Tested TAF version is 1.9.22
576      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
577    
578    checkpoint60
579    --->>> This is the last checkpoint for which generating the adjoint
580    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
581    --->>> by default.
582    --->>> Future checkpoints will ommit this flag by default.
583    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
584    o pkg/grdchk: Add gradient check to etan0 perturbations.
585    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
586    o pkg/autodiff: more flexibility in zeroadj.
587      model/src: modifying do_oceanic_phys.F accordingly.
588    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
589    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
590      special setup of gmredi for which the adjoint is stable
591      enough for parameter optimization.
592    o bridging the gap between eddy stress and GM.
593      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
594          along with a change in CPP option (now ALLOW_EDDYPSI).
595      -> when using GM w/ GM_AdvForm:
596          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
597          is applied either in the tracer Eq. or in momentum Eq.
598          depending on data.gmredi (intro. GM_InMomAsStress).
599      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
600      The key modifications are in model/src/taueddy_external_forcing.F
601      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
602    
603    checkpoint59r
604    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
605      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
606      fix option to read coriolis(@ cell-corner) from files with CS-grid.
607    o pkg/mnc: add some attributes to standard 1D-coordinate variables
608    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
609      mass points, when using mnc for output
610      - add runtime parameter (missing_value, missing_value_int) to override
611        default (which is the value of getcon('UNDEF'))
612    o pkg/mnc: prepare mnc for the actual use of missing values with the
613      diagnostics package: small fix in mnc_cw_readwrite.template and more
614      initialisation of never used fields
615      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
616      versions
617    o pkg/thsice/thsice_ini_vars.F added default initial values so that
618      thermodynamics sea ice solver does not blow up when some initial fields
619      are missing.
620    o move from external_forcing_surf.F to ini_forcing.F
621      the p-coord. hack consisting in using pLoad to set phi0surf ;
622      update output of tutorial_global_oce_in_p (affected @ truncation level).
623    o Freshen up a bit hs94.1x64x5, notably:
624      remove rotationPeriod and tRef=5*0. (adjoint only), and add
625      exactConserv=.TRUE.
626    o pkg/generic_advdiff:
627      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
628      applies to files where Temperature & Salinity 2nd Order moments are used.
629    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
630      this uses a dynamically allocated internal state data structure
631      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
632      and requires a fortran 90 compiler
633    
634    checkpoint59q
635    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
636       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
637    o Refresh tutorial_global_oce_biogeo, notably:
638      - change bathymetry (put back seamounts in ACC, use hFacs)
639      - change EOS (POLY3 --> JMD95Z)
640      - use Bryan-Lewis vertical diffusivity
641      - use multidimensional advection
642      - remove old virtual virtual in dic pkg, now done through ptracer pkg
643      - change a couple of parameters in dic pkg
644    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
645    o pkg/obcs: change default to OBCSfixTopo = .true.,
646      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
647      - replace "debugMode" with "debugLevel .GE. debLevB"
648    o implementation of TAF directives for gchem,cfc,dic
649    o remove "exp5" (replaced by tutorial_deep_convection).
650    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
651      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
652      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
653      --> changes results in exp4, seaice_obcs
654    o tutorial_deep_convection :
655      update the set-up and increase resolution and domain size ; start
656      from pseudo initial conditions = output at t=120mn in order to see
657      something happening when running testreport.
658    o pkg/seaice: add os7mp as an advection scheme
659                  add check for advection schemes
660                  add a flag for restoring T and S underneath sea ice
661    o pkg/my82: add netcdf-support and diagnostics
662    o thsice pkg:
663      - Now hsMax limits snow height by turning it into ice following
664        flooding scheme (and now conserving energy)
665      - Slight rewriting of the formula in thsice_calc_thick.F
666      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
667      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
668    
669    checkpoint59p
670    o gchem / dic / cfc :
671      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
672      - add new parameter files: "data.dic" & "data.cfc" ;
673      - various re-arrangement in initialisation & header file ;
674      - fix tutorial_global_oce_biogeo for multi-threaded test.
675    o pkg/dic: test for "pickup_dic" file when restarting ;
676      if no pickup-file, can restart with a re-initialised pH (same as it did
677      before) providing pickupStrictlyMatch is set to False.
678    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
679      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
680    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
681      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
682    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
683     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
684       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
685    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
686       scheme to use for vorticty-term ;
687     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
688       (with default selectVortScheme, return to original discretisation)
689     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
690    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
691    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
692      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
693      also fix diagnostics VISCAHW & VISCA4W.
694    
695    checkpoint59o
696    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
697    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
698      move a few statemens out the main loop into separate loops
699    o pkg/shelfice:
700      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
701        (kg/m^2/s), does not break tests, because in verification/isomip,
702        rhoConstFresh=rhoConst (by accident)
703      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
704      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
705        new file model/src/seawater.F, so that they are available for all pkgs.
706      - convert potential temperature into in-situ temperature. This changes the
707        isomip tests => update tests
708    o add a flag writePickupAtEnd (default=true) to be able to suppress
709      writing a pickup at the last timestep
710    o tools/mpack-1.6 :
711      - disable automake (not working) and autoconf (not needed).
712      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
713        also cleaner with much less compilation warnings.
714    o pkg/profiles:
715      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
716      (for "less than 32 characters name" compiler requirement)
717    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
718      conditions that have a different sampling frequency than S/T/U/V obcs
719    o pkg/diagnostics (stats-diags):
720      - fix global Min/Max in case 1 processor get only empty tiles
721    o genmake2: replace (4 times)
722         make genmake_tc_1.o >> genmake_warnings 2>&1
723      with
724         COMM="$CC $CFLAGS -c genmake_tc_1.c"
725         echo $COMM >> genmake_warnings
726         $COMM >> genmake_warnings 2>&1
727      to make genmake2 always see the value of CC as specified in the optfile.
728    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
729      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
730      - modify verification advect_cs test to test SOM-advection on CS-grid.
731    o pkg/ctrl:
732      - Rewrite of ctrl_map_ini_ecco.F,
733        introducing a generic routine (ctrl_map_ini_gen.F).
734      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
735    
736    checkpoint59n
737    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
738      number in dedicate array "hdiag":
739      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
740        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
741      - many small changes (integer format) for large number of diagnostics
742      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
743        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
744    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
745      usingSphericalGrid, this allows to define the rotated grid coordinates
746      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
747      geographical coordinates according to the inverse of the rotation defined
748      by the Euler angles, so that Coriolis parameter and online-interpolation by
749      exf works with the geographical coordinates on XC/YC/XG/YG.
750      Naturally, this feature does not work with all packages, so some
751      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
752      profiles), because there the coordinates are assumed to be regular
753      spherical grid coordinates.
754    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
755      - introduce isopycnal diffusion coefficient control.
756    o tools/adjoint_options:
757      - additional control vector components.
758    o pkg/mnc: have mnc create marginally meaning full coordinate variables
759      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
760    o pkg/mypackage:
761      - add example of read/write pickup for state-var ;
762      - add entry points to the main code for state-vars diags & write-pickup.
763    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
764      transitions for useExfYearlyFields
765      - add new subroutine that determines the file to read from for
766        use*YearlyFields = .TRUE. and .FALSE.
767      - add a verification experiment to global_with_exf that tests
768        useExfYearlyFields with USE_EXF_INTERPOLATION defined
769    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
770      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
771      subroutines (which could be generated from a template, because they are
772      almost identical), for now they are included in obcs_prescribe_read.F for
773      simplicity
774    o pkg/exf:
775      - add a little more diagnostic to exf_interp_read (in analogy to
776        mds_read_field, can be turned off with debugLevel < debugLevA=1)
777      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
778        ugly but fast by unrolling short inner loops, inserting a unroll=8
779        directive in routine lagran, and splitting a loop and making do while the
780        outermost loop (the latter requires the intoduction of index arrays)
781    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
782    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
783      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
784    o verification/seaice_obcs: updated for restart test and latest options
785    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
786      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
787      for now this is only available for the C-grid code and also within
788      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
789    
790    checkpoint59m
791    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
792      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
793    o gad_som : fix flux output (& diagnostics) to have same units as other  
794      advection scheme fluxes (was previously multiplied by deltaT).  
795    o added verification/seaice_obcs both to test seaice open boundaries
796      and to provide an example matlab scrpt for generating them
797    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
798    o pkg/salt_plume: clean up salt_plume_frac.F to
799      remove redundancy in PlumeMethod 1 and 4
800    o pkg/kpp: added saltplume diagnostics
801    o pkg/obcs and pkg/seaice:
802      - do not set uice and vice to zero when OB*icefile are unspecified
803      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
804      - moved seaice tracer obcs after call to seaice_growth
805    o pkg/salt_plume: added various options for salt plume depth
806      criterion and for vertical distribution of the salt
807    
808    checkpoint59l
809    o pkg/ptracers: new version of ptracers pickup:
810      read meta file and write only fields which are needed to restart.
811      ( same logic as main pickup file ; also using pickupStrictlyMatch )
812    o pkg/seaice:
813      - add timescale for melting due to warm mixed layer as a means of
814        setting SEAICE_availHeatFrac more conveniently
815      - add a CPP-flag/runtime parameter check for flooding algorithm
816      - reformulated availHeat in seaice_growth.F to be independent of AREA
817    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
818      unit changes
819    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
820    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
821      SX vector computer.
822    o pkg/seaice:
823      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
824        seaice forcing fields can now be read only through pkg/exf
825      - removed some unused halos
826    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
827    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
828      or U/VICE from U/VWIND before computing U/VSTRESS
829    
830    checkpoint59k
831    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
832      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
833    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
834      all experiments pass when compile with un-initialised var. checking option.
835    o added pkg/salt_plume
836    o script to test restart (for now, in MITgcm_contrib/jmc_script)
837    o pkg/seaice: new read/write pickup version.
838      read meta file and write only fields which are needed to restart.
839      ( same logic as main pickup file ; also using pickupStrictlyMatch )
840    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
841    o lab_sea.hb87: modify the domain & update output.hb87.txt :
842      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
843      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
844      process. Fixed here by closing the domain at the Northern boundary.
845    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
846    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
847      a set of consecutive levels in/from a 3-D array.
848    o pkg/ptracers:
849      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
850      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
851    
852    checkpoint59j
853    o in pkgs: dic, obcs, offline, rbcs:
854      standard way to compute coeff. for time interpolation between 2 time reccords
855      which retains full precision (& make results less dependent on compiler).
856      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
857    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
858      packages instead of reading ice cover and wind speed separately
859    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
860     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
861      to allow to compile customized code before the update)
862    o cleaning-up:
863      - fix CPP instruction syntax in pkg/obcs
864      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
865        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
866      - fix some threads issue in IO parts.
867    o pkg/dic:
868      - add tons of "_d 0" (--> much better testreports !)
869       and then update outputs of tutorial_global_oce_biogeo
870    o pkg/mom_fluxform:
871      add a special version of momentum advection intended to conserve momentum
872      next to a bathymetry step or a coastline edge. (default = off = #undef)
873    o new read/write pickup version:
874      - for now, only implemented for main (mdsio) pickup file.
875      - write out only what is needed to restart; merge pickup_nh , pickup_ph
876        and main pickup together.
877      - read meta file; read only what is needed to restart; stop if a field
878        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
879        if it make sense (even if the restart is not perfect).
880      - if no meta file, assume that pickup to read corresponds exactly to
881        a pickup that would currently be written.
882      - read pickup written in the old format (until checkpoint59i) if it
883        recognizes an old meta file (no field-list).
884      - add a meta file in exp. which starts from a pickup: 2 cases:
885        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
886         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
887        b) a meta file describing the content of the associated pickup file
888         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
889    o pkg/mdsio & pkg/rw:
890      - new routine to read a meta file ; new set of routine to read
891        Multiple-fields file (with meta file).
892    o added open boundary conditions capability for seaice
893        HSNOW, HSALT, UICE, and VICE
894    
895    checkpoint59i
896    o adjoint:
897      * fix multiDimAdvection adjoint
898        (partial recomputation problem by TAF for fVerT(:,:,kDown)
899        and comlev1 size definition (maxpass vs. max. number of tracers)
900      * verification/global_ocean.90x45x15 adjoint now tests
901        NLFS and multiDimAdvection using DST3 (=30)
902      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
903    o pkg/kpp: add "_d 0" to real constant (if missing);
904      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
905      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
906    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
907      for internal parameters related to restart process (formerly from PARAMS.h)
908      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
909    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
910      as argument. (only atm2d & obcs write_pickup have not yet been updated)
911    o pkg/monitor:
912      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
913      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
914      - account for deep Atmosphere factor and density factor (anelastic)
915    o added open boundary conditions capability for seaice HEFF and AREA
916    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
917      thermodynamics
918      - requires a little reorganization, which affects the testreport results
919        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
920        so that now the conservative form is tested
921      - add a few comments
922    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
923    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
924    o add new diagnostics to seaice: advective, diffusive fluxes (only for
925      multidim-advection, for scheme 2 they are not filled) and transports,
926      thermodynamic growth rates
927    o change units of EmPmR (inside the code, + within coupling interface)
928      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
929      Affects results @ truncation level (cg2d match) and update output of
930       experiments: lab_sea(6), global_ocean.90x40x15(10),
931      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
932      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
933      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
934      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
935    
936    checkpoint59h
937    o pkg/exf:
938      - improve vectorization by moving if-statement out of loops in
939        exf_mapfields, exf_radiation
940      - exf_bulkformulae.F: introduce 2D fields and vectorize code
941    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
942    o testreport:
943      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
944        monitor & update offline_exf_seaice exp. output.
945      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
946    o pkg/seaice:
947      - bug fix in the evp solver: boundary conditions were affected be
948        masking of zMax/zMin (changes results)
949      - minor bug fix in boundary conditions in seaice_calc_strainrates
950        (changes results for no_slip)
951      - seaice_lsr.F: make interpolation of eta dependent on boundaries
952      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
953      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
954        stress formulation and no-slip boundary conditions
955    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
956      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
957    o pkg/seaice: a first HSALT time stepping equation has been checked in
958    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
959      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
960      without requiring DO-IF statements
961    o pkg/thsice:
962      use continuous power-law function for partition of energy between lateral
963      melting/freezing and thinning/thickening ; old code using step function
964      still available with #undef THSICE_FRACEN_POWERLAW
965      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
966    o testreport: change AD testing : check against results/output_adm.txt
967      using same scripts as for forward test.
968    
969    checkpoint59g
970    o adjoint testing: in preparation for changing testreport:
971      - output format: cost and grad written on separated lines
972      - ad output results in directory "results" (instead of "results_ad")
973    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
974    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
975    o pkg/ecco: allow user defined cost function contributions
976    o testreport:
977      Allow to choose (per experiment) the list of tested output variables
978       and the main variable (used to issue a pass/FAIL ) ;
979      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
980      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
981      Also modify printing of summary:
982       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
983       b) echo the list of tested variables in the individual summary.txt of
984          each experiment.
985    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
986      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
987      (but still depend on the tile decompostion of the domain).
988    o pkg/seaice: change a discretization detail to make the B-grid code
989      "more symmetric". This change is likely to remove all "ridges/leads" that
990      where quasi-aligned with the grid in B-grid solutions. It may also be
991      the solution to the stress coupling issues with the B-grid.
992    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
993      remove .cvsignore from input dir. (since testreport no longer run here).
994    o pkg/thsice:
995     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
996     - fix reshaping of sea-ice just after advection:
997       melt all the ice only if ice-volume is too small.
998     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
999       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1000     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1001    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1002      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1003    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1004      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1005      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1006      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1007      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1008      -> update output.txt
1009    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1010     this affects truncation error: -> update output.txt of exp:
1011      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1012      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1013    
1014    checkpoint59f
1015    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1016    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1017      a bounded range (in forward mode)
1018    o pkg/ecco, ctrl, autodiff and mom_common:
1019     internal parameter controls, completements of implementations
1020    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1021    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1022      (not seem any difference in testing results).
1023    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1024       at face corners.
1025    o pkg/generic_advdiff:
1026     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1027      loop range indices for computing vertical advection tendency
1028      and do the calculation in the interior only (no overlap) ;
1029      for now, only implemented for SOM advection (to save CPU time).
1030     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1031    o exch2 adjoint
1032      First set of changes:
1033      - add exch2 hand-written adjoint templates
1034      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1035        This will require cleanup in pkg/autodiff/*.F
1036        (changed routines currently kept separate in verif. code/)
1037      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1038        that used to hide exch2 or cubed-sphere specific code
1039        (commented via 'cph-exch2')
1040    o pkg/seaice
1041      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1042    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1043       output of global_ocean.cs32x15.thsice .
1044    
1045    checkpoint59e
1046    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1047      for B-grid vector (not yet tested) and C-grid vector (<- only used
1048      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1049    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1050      (#ifdef ALLOW_SALT_PLUME)
1051    o gather_2d/scatter_2d: removed halo regions
1052    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1053      scheme and the corresponding test case (under front_relax dir). For now,
1054      only available with Skew-flux form and not yet tested in realistic set-up.
1055      adjoint: store directives updated, but gradient checks deteriorated,
1056      so maybe GM/Redi adjoint is now broken.
1057    o seaice adjoint
1058      * add AREA, HEFF, HSNOW as control variable
1059        (should not change lab_sea results)
1060      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1061    o pkg/seaice:
1062      * added computation of saltFlux in seaice_growth;
1063        For time being, sea ice salinity is assumed constant
1064        contribution of snow flooding to freshening of sea ice is neglected.
1065        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1066        defaults to 0.0 in order to maintain backward compatibility.
1067        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1068      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1069      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1070        heat content used to melt or grow ice
1071      * commented out cap of HICE: it helps keep ice thinner
1072      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1073      * applied OBCS T/S mask to HEFFM sea ice mask
1074    
1075    checkpoint59d
1076    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1077     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1078     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1079    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1080     and change default value of parameter "GM_Small_Number";
1081     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1082       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1083       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1084    o pkg/ecco: cost function when applying pkg/smooth to controls
1085    o pkg/ctrl: add forcingPrecond run time parameter
1086    o pkg/seaice:
1087     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1088     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1089       changes verification/lab_sea
1090     - rearrange implicit part of u-equation in LSR solver to make it easier to
1091       read, understand, and debug. This causes changes at the truncation level.
1092     - fix (serious) bug in the boundary conditions (sign error in the implicit
1093       part) of the LSR solver. Changes all LSR results.
1094     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1095       is initilized with small values - does not change lab_sea results.
1096     - added HsnowFile initialization capability
1097    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1098     initialization of pkg/smooth and application to control vector
1099    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1100    o dependencies: pkg/profiles requires pkg/cal
1101    o pkg/profiles:
1102     - added option ALLOW_PROFILES_GENERICGRID
1103         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1104         that interpolation information (grid points and coefficients) is provided
1105         within the netcdf input files.
1106         -> sample matlab scripts can be found in MITgcm_contrib/gael
1107         that allow you to prepare netcdf input files.
1108     - also modified: cleaner include statements, cleaner error print statements,
1109       cleaner stops when error, and more tests of the netcdf input files consistency.
1110    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1111    o pkg/seaice:
1112     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1113       requires a new routine: seaice_diagnostics_fill.F
1114     - make sure that seaice does not move if not forced (pressure replacement
1115       method, Hibler and Ip, 1995), changes results
1116     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1117     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1118       It is turned off by default (=-1.), because it changes the results.
1119     - make it possible to read AREA from a file, too.
1120    
1121    checkpoint59c
1122    o add S/R and diagnostics for oceanic mixed-layer depth
1123    o move GMRedi call after all vertical mixing schemes (including KPP)
1124    o pkg/thsice:
1125     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1126      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1127    o pkg/obcs:
1128     - bug fix for balance code
1129    o pkg/seaice:
1130      - allow values of SEAICE_elasticParm > 1
1131      - add new parameter SEAICE_evpTauRelax as an alternative
1132        to SEAICE_elasticParm
1133      - make lsr boundary conditions free slip (by default), changes result
1134      - add code for no slip boundary conditions for lsr
1135      - set minimum of zeta to zero (and not 4e8) (changes results)
1136      - add a cap on AREA after advecting AREA if seaice_growth is not called
1137    o change calculation of Visbeck K:
1138      - no longer depend on tapering scheme; instead, compute slope (limited
1139        by GM_maxSlope). this is equivalent to what was comuted before with
1140        clipping or linear tappering.
1141      - fix vertical averaging (wrong by 1/2 level)
1142      - leave the old version (but will not be maintained) within
1143        #ifdef OLD_VISBECK_CALC / #endif
1144      - update output of exp. ideal_2D_oce
1145    o change error catch in calc_r_star to improve vectorization
1146    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1147      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1148    o adjoint:
1149      Re-organized adjoint checkpointing according to Matt Mazloff
1150      (but with modifs/completions/cleanups)
1151      Storing is now bundled into large arrays to optimized I/O
1152      (and second step in cleanup of the_main_loop)
1153    
1154    checkpoint59b
1155    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1156      - export/import (between ocean & coupler) fields needed for ocean DIC.
1157    o pkg/seaice:
1158      - get rid of three more exchanges seaice_calc_viscosities (required
1159        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1160      - bug fix in seaice_ocean_stress (update of lab_sea required)
1161      - reduce loop boundaries to necessary minimum also in seaice_evp
1162      - go back to the old way of computing deltaC/Z as the adjoint likes that
1163        better
1164    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1165      passive tracer to an Age Tracer) + update output.txt
1166    o pkg/exf:
1167      - implement A-grid / C-grid selection for wind-stress input files.
1168      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1169      for now, in exf_bulk_largeyeager04.F only :
1170      - change implementation for case where windspeed + 2. components wind-stress
1171        are read-in. AND use rhoConstFresh to convert evap.
1172    o pkg/seaice:
1173      - use correct EXCH_UV for wind-forcing (on A-grid).
1174      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1175        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1176    o pkg/exf:
1177      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1178      EXF_INTERPOLATION:
1179      - merge global_with_exf/code version of exf_interp_read.F
1180        to the main code ;
1181      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1182        reading the file ; Important: This options needs to be defined to recover
1183        previous code.
1184        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1185      - no longer loose real*8 precision along the way when using exf_iprec=64.
1186    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1187      - change discretisation of evp-solver in order to avoid another exchange
1188        (changes lab_sea) and clean up a little
1189      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1190        help the adjoint (this also changes the results slightly)
1191      - add a few "_d 0" where they had been missing in seaice_evp.F
1192      - cleaning up: remove unused seaice_calc_rhs.F
1193    o pkg/exf: some cleaning-up:
1194      - change various "constants" into runtime parameters
1195      - cleaned-up Large&Yeager04 routine which should eventually
1196        replace exf_bulkformulae.F (changed names of S/R and CPP)
1197        and merged various ALLOW_ATM_WIND options
1198     only used with thsice pkg (in thsice_get_exf.F):
1199      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1200        which are used when useStabilityFct_overIce=TRUE (= the default)
1201      - change default values of ice & snow emissivity and scale downward LW
1202        by ice & snow emissivity.
1203    o pkg/thsice:
1204     fix few little problems, in thsice_calc_thickn.F:
1205      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1206      - melt only laterally if hIce < hThinIce (as the comments say)
1207      and in thsice_extend.F:
1208      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1209      - start to form ice as soon as the minimum ice-volume is reachable.
1210     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1211      and cpl_aim+ocn
1212    o pkg/kpp
1213     - move computation of surface related input fields to KPP into a new
1214       subroutine kpp_forcing_surf.F
1215     - remove wrong (within bi,bj loops) EXCH calls.
1216     - little cleaning (add argument myThid in last position, cvs header ...)
1217     - for now, fix conservation problem by exchanging KPPviscAz (may not
1218       be the best fix)
1219    o pkg/seaice
1220     - check for inconsistent evp parameter/cpp-flag combination
1221     - remove leftover errIO flat for obsolete name list error handling
1222    o OpenAD
1223     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1224    
1225    checkpoint59a
1226    o pkg/seaice: some parameter clarifications and a little bit of clean up
1227    o pkg/thsice: rename run-time parameters:
1228       himin       -> hIceMin
1229       himin0      -> hThinIce
1230       hihig       -> hThickIce
1231       i0          -> i0swFrac
1232       transCoef   -> bMeltCoef
1233       frac_energy -> fracMelting
1234      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1235       with default values (for now) that do not change the results.
1236      remove old version of thsice vars advection in pkg/seaice.
1237    o in FFIELDS.h:
1238      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1239      - make pLoad & sIceLoad always available (but still only used if
1240         ATMOSPHERIC_LOADING is #define).
1241    o pkg/kpp: replaced _KPP_RL with _RL
1242    o bug fixes for vertical diffusivity computations when both KPP and
1243        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1244        are no longer updating the vertical diffusivity array
1245        (passed as argument) but are (re-) setting those arrays.
1246    o pkg/seaice: fix bug in evp solver, while doing that
1247      - change (improve?) discretization of stress computations for both
1248        cgrid-lsr and evp solver
1249      - add a new routine to compute strain rates
1250      - the above changes lab_sea results
1251      - add no slip conditions for evp solver (off by default), lsr-version
1252        may follow
1253      - fix exchange for shear at Z-points (does not change lab_sea)
1254      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1255        (to force the user to pick a time step since there is not "safe" way
1256        of choosing it)
1257      - add principal stress diagnostics
1258      - rearrange fields for evp a little to avoid having to call a: too many
1259        exchanges and b: exchanges for stress trensor components which we do
1260        not have.
1261      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1262        of evp, complete rewrite for lsr case (latter is does not yet work
1263        in all cases)
1264    o pkg/kpp: add code to have mixing in shelf ice caverns
1265      - add myThid to all kpp routines (long overdue)
1266    
1267    checkpoint59
1268    o pkg/exf:
1269      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1270        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1271      - move exf header files from lower_case.h to UPPER_CASE.h ;
1272        add missing cvs Header & Name
1273      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1274      - add namelist param. selectStressGridPosition, exf_monFreq
1275      - retire many _CLIM routines, and remove data.exf_clim
1276        + params moved to data.exf
1277        + climsst, climsss now handled by exf_set_gen, i.e.
1278          climss?period=0 refers to constant field,
1279          climss?period=-12 to monthly forcing
1280      - split up namelists in data.exf
1281    o pkg/seaice:
1282      - remove seaice_exch and seaice_exch_uv
1283      - remove superfluous exchange of theta
1284      - add myThid to seaice_budget_ocean/ice
1285      - add new interface for atmospheric wind forcing (C-grid only)
1286        + new routine
1287        + two new field (taux, tauy for stress over ice)
1288        + removed one global field (DAIRN) for C-grid case only
1289    o pkg/thsise
1290      - 2nd set of modifs for thsice adjoint in conjunction with exf
1291    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1292    
1293    checkpoint58y_post
1294    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1295      vertical diffusivity, similar to that in MOM4; turned on using
1296      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1297      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1298    o Added capability for 3D specification of background vertical diffusion
1299      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1300      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1301      "data" file that contains the 3D vertical diffusivity coefficients.
1302    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1303      - add code within pkg thsice to advect & diffuse sea-ice fields
1304      similar to (and will replace) what has been added in  seaice_advdiff.F,
1305      but: - conserving Mass, Heat & Salt.
1306           - better when using non-linear advection scheme (not yet fully tested)
1307           - can also be used in atmospheric set-up (for now, only the diffusion).
1308    
1309    checkpoint58x_post
1310    o IO option for global-file compact format:
1311      - add options when generating topology (utils/exch2/matlab-topology-generator)
1312      - add I/O capability (pkg/mdsio).
1313      - adapt utils/matlab/rdmds.m to read this format.
1314      for now long-line format not yet supported by pkg/mdsio (& exch2).
1315    o shelfice: add a few diagnostics
1316    
1317    checkpoint58w_post
1318    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1319      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1320      (and replace horiVertRatio in NH code).
1321      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1322                         and tutorial_plume_on_slope (sensitive to truncation)
1323    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1324      directly to drive seaice model (C-grid only)
1325    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1326     - reintroduce computation of wind from stress,
1327     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1328       mass points to avoid tau = 0
1329     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1330    o rdmnc.m: make it work with "global" files created with gluemnc
1331    o rdmnc.m : some improvements in dealing with singleton dimension
1332      (tested on all testreport mnc output files).
1333    o genmake2: disable pkg/profiles if netcdf test fails.
1334    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1335    o move call to cal_readparms up to make calendar parameters/variable available
1336      to all packages
1337    
1338    checkpoint58v_post
1339    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1340      useDynP_inEos_Zc tested.
1341    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1342    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1343      and portions thereof.  See read_cs.txt for description and examples.
1344    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1345      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1346      following the great-circle arc between those 2 points.
1347    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1348      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1349    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1350     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1351     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1352     - still needs work (not working with some options ; efficiency to improve)
1353       and serious testing.
1354     - use this scheme for temperature & salinity in 2 advection test exp.:
1355       advect_xy & advect_xz, respectively.
1356    
1357    checkpoint58u_post
1358    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1359    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1360    o testreport: add option "-skipdir" to skip some test.
1361    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1362      momentum calculation.
1363    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1364    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1365      remove checkpoint.F and the_correction_step.F (no longer used);
1366      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1367    o add option (linFSConserveTr) to correct for tracer source/sink due to
1368      Linear Free surface
1369    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1370    o pkg/thsice: fix reading mnc-pickups
1371    
1372    checkpoint58t_post
1373    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1374    o pkg/mdsio:
1375     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1376       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1377       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1378     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1379     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1380       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1381     - new S/R (to replace MDSWRITEMETA), which allows to write more
1382       informations (variable names, time ...) to meta files.
1383     - modify rdmds.m to give back the meta file content.
1384    o pkg/diagnostics: change vertical interpolation to be safer, and more
1385       flexible (define p-levels to interpolate to in data.diagnostics);
1386      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1387       diagnostic pointer.
1388    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1389    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1390    o fix multi-category seaice:
1391     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1392       SEAICE_MULTICATEGORY
1393     - fix short wave heat flux
1394    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1395       and allow to use EVP solver. Change forward lab_sea: test both EVP
1396       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1397    o Initial check-in of lab_sea adjoint
1398      (very similar to natl_box_adjoint/code_seaice)
1399      * used C-grid and EVP solver
1400      * used KPP, GM/Redi
1401      * uses inAdExact=.TRUE.
1402      * gradient checks fail for both ADM and TLM
1403        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1404        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1405        issue is related to forward mismatch between g77 an ifort
1406    o pkg/seaice: overhaul of thermodynamics
1407     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1408     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1409     - move a few global fields out of SEAICE.h into seaice_growth.F and
1410       make them 2D (FICE/QNETO/ ...)
1411     - remove FO (it is the same as QNETO)
1412     - introduce a few local fields to avoid modifying external fields such
1413       as atemp, etc.
1414    
1415    checkpoint58s_post
1416    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1417      changed exf_set_gen.F so that
1418        genperiod=0 means input file is one time-constant field and
1419        genperiod=-12 means input file contains 12 monthly means
1420    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1421      this affects truncation error ; generate new output file for exp. which
1422      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1423        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1424        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1425        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1426        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1427        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1428    o start implementation of deep-atmosphere and anelastic formulation
1429    o verification: remove 2nd copy of input files and use script "prepare_run"
1430      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1431    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1432    o profiles: fix for multithreaded case
1433    
1434    o diagnostics: rename few diags:
1435      s/'PRESSURE'/'RCENTER '/g
1436      s/'TICE    '/'oceFreez'/g
1437      s/'TAUX    '/'oceTAUX '/g
1438      s/'TAUY    '/'oceTAUY '/g
1439      s/'SWFLUX  '/'oceQsw  '/g
1440      s/DIFx/DFxE/g
1441      s/DIFy/DFyE/g
1442      and add few ocean-forcing diagnostics:
1443      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1444    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1445      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1446      as actual snow thickness.  It now refers everywhere to effective snow
1447      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1448    
1449    checkpoint58r_post
1450    o modifications to pkg/seaice/growth.F, which change results of
1451      lab_sea experiment: fixes pertain to melting snow over open water, to
1452      masking EVAP under sea ice, and to using the correct AREA variable for
1453      computations of EVAP, PRECIP, HSNOW, and GHEFF
1454    o add ability to read bathy, salt, and theta using MNC (off by def)
1455    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1456      both are turned off by default and do no change any results
1457    o seaice advection with pkg/thsice: a step toward the use of non-linear
1458      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1459    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1460      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1461      in natl_box (affects results @ truncation level: update output.txt)
1462    o multi-threading and IO:
1463      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1464      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1465        (needed to work with SingleCpuIO): tested in all verif. exp.
1466    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1467      affects the results (but none of the verification test uses this scheme).
1468    o Adding some pkg/diagnostics capability to pkg/seaice
1469      (will certainly be subject to changes)
1470    o ctrl: adding new control variables:
1471      lwflux, lwdown, evap, snowprecip, apressure, runoff
1472    
1473    checkpoint58q_post
1474    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1475      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1476      high_res_cube configuration by 4% on Columbia.
1477    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1478      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1479      dynamical allocation (seems to work in multi-threaded).
1480    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1481      single CPU io) so that TAF does not have to see EESUPPORT.h
1482    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1483    
1484    checkpoint58p_post
1485    o obcs: stop if obcs is used with useCDscheme = .true.
1486    o shelfice:
1487     - fix a sign error so that no slip at shelfice interface works
1488     - remove stop for combination non-hydrostatic code and shelfice. That does
1489       not mean, that the results are correct, but at least they are numerically
1490       stable
1491    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1492    o added adjoint exch routined for all exch*3d* routines
1493      and updated flow directives
1494    
1495    checkpoint58o_post
1496    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1497      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1498    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1499      and clean-up reading/writing of pickup files.
1500    o fix local version of read/write pickup (NH part) in rotating_tank/code
1501    o simplify EXCH interface:
1502     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1503     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1504    o added the regrid package
1505    o shelfice:
1506     - add a simple boundary layer scheme to reduce noise
1507     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1508    
1509    checkpoint58n_post
1510    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1511       local variable (not in common block).
1512    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1513      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1514      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1515        to work with SingleCpuIO.
1516    o add "_d 0" to real constant of pkg/cfc subroutines ;
1517       update exp. cfc_exemple & tutorial_cfc_offline output files.
1518    o multi-threading and IO:
1519      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1520        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1521      - barrier before and after reading.
1522      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1523      - avoid using MDS_WRITELOCAL for LAND pkg output.
1524      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1525        common-block variables ; Allows multi-threading with master-thread IO.
1526    o change default MAX_NO_THREADS from 32 to 4 ;
1527      and stop cleanly when MAX_NO_THREADS is too small.
1528    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1529    
1530    checkpoint58m_post
1531    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1532       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1533    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1534       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1535       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1536    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1537        add MITgcm_tutorials (= code + all the tutorials)
1538    o ecco, option to compute cost for total ssh (mean+anom)
1539    o consistent with addition of ptracer and ssh in pkg/profiles
1540    o profiles: adding ptracer and ssh
1541    o testreport: change multi-test output-file name
1542      (from output.txt.{name} to output.{name}.txt)
1543    o profiles: now ok for mutli-tiles case
1544    o seaice: add 4 parameters for different advection schemes for area,
1545      (effective) seaice thickness, enthalphy, and snow height. Their default
1546      is the standard parameter SEAICEadvScheme
1547    o calc_gw:
1548     - add cosFacU in zonal viscous flux (harmonic.visc.).
1549     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1550       of tutorial_plume_on_slope.
1551    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1552    o calc_gw: true flux-form, account for horizontal grid spacing.
1553      update rotating_tank results, but not plume_on_slope (affected at
1554      truncation level, 11 digits).
1555    
1556    checkpoint58l_post
1557    o calc_gw:
1558     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1559     - remove side-drag for now (need to fix it); update plume_on_slope results.
1560     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1561    o commit code to make SST/SSS weights spatially variable
1562      (based on either variable in-situ or variable initial T/S weights)
1563    o pkg/ecco:
1564      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1565        now based on horizontally varying weights wthetaLev, wsaltLev
1566      * cost_averagesflags now returns year indices in addition to day, month
1567      * sflux balance is performed on annual basis
1568        (sflxumm, sfluxmm2, bal_sfluxmm)
1569      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1570        including separate counting and multipliers
1571    o pkg/rbcs
1572      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1573    
1574    checkpoint58k_post
1575    o testreport:
1576     - always build in dir. "build" (if not there, mkdir build instead of building
1577       & running in input)
1578     - run in dir run (if it exists), in build otherwise.
1579     - call prepare_run (if input/prepare_run exists)
1580     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1581    o pkg/exf modifications to interpolation and rotation routines for more
1582       reasonable treatment of North Pole singularity: for tracers North Pole
1583       value is set to northernmost zonal-mean value, for zonal velocity it is
1584       set to zero, and for meridional velocity it is set to northernmost value.
1585    o pkg/exf/exf_check_range.F
1586     - add tile index to diagnostics and move stop statement to the very
1587       end of the routine.
1588    o pkg/diagnostics: (diagnostics_main_init.F)
1589      define title of isomorphic variables according to the current config.
1590    o pkg/thsice with pkg/seaice dynamics:
1591    - fix domain of computation (interior only, required for exf) and do exchanges
1592    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1593    o towards a standard way of dealing with multi-threading in MONITOR
1594      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1595    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1596       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1597    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1598    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1599    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1600       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1601    o tracer advection:
1602     - clean-up and simplify calc_common_factors.F
1603     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1604       advection subroutine (but still not used within DST advection S/R)
1605    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1606    
1607    checkpoint58j_post
1608    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1609      from file (collects calls previously in FORWARD_STEP)
1610    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1611    o adjoint store dir. adjusted accordingly
1612    o genmake2
1613      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1614    
1615    checkpoint58i_post
1616    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1617      on wind stress (SEAICEstressFactor defaults to 1.)
1618    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1619      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1620    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1621      on CS-grid: no longer loosing mass.
1622    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1623    o pkg/ggl90: fix sloppy output and fix a bug
1624    o pkg/seaice: added SEAICEuseEVPpickup parameter
1625      - Set to false in order to start EVP solver with
1626        non-EVP pickup files when using SEAICEuseEVP
1627      - fix sign error in diffusion in seaice_calc_rhs
1628    
1629    checkpoint58h_post
1630    * Modifications for bottom topography control
1631      o replace hFacC by _hFacC at various places
1632      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1633      o add non-self-adjoint cg2d_nsa
1634      o update autodiff support routines
1635      o re-initialise hfac after ctrl_depth_ini
1636      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1637    * Adding verification for 5x5 box (4-layer) bottom topography control
1638    
1639    checkpoint58g_post
1640    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1641       used for mean seasonal cycle, mean diurnal cycle); add an example
1642       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1643    o pkg/ggl90:
1644      - add parameter (minimum surface kinetic energy)
1645      - fix bug (avoiding division by zero)
1646    o couple pkg/thsice to pkg/seaice:
1647      - modify advection in seaice to accomodate new scalar fields to be advected
1648      - only muliDimAdection scheme work with seaice/thsice
1649      - mapping of thsice-variables to seaice-variables, back and forth
1650      - does not break the verification experiments, but does not give the
1651        desired results either
1652    o pkg/seaice
1653      - make (default) second order advection a bit less confusing?
1654    
1655    checkpoint58f_post
1656    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1657      to pkg/seaice):
1658      - new routines thsice_map_exf and thsice_get_exf provide the interface
1659      - add an additional formal parameter to thsice_solve4temp
1660    o pkg/exf:
1661      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1662      - correct Stefan-Boltzmann constant
1663      - new parameter for longwave surface emittance
1664      - separate some stuff from exf_bulkformulae into new routines  
1665        exf_radiation, exf_wind
1666      - add new parameters and constants: longwave emissivity for ocean, ice
1667        and snow, evaporation parameters over ice
1668      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1669        either wind from stress or stress from wind
1670    o pkg/thSIce:
1671    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1672    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1673       and THSICE_CALC_THICKN
1674    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1675    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1676      to make debugging easier.
1677    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1678    o pkg/bulk_force:
1679      - clean-up comments and parameters ;
1680      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1681    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1682      generate new output for test-experiment: aim.5l_cs.thSI
1683    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1684      testreport accordingly
1685    
1686    checkpoint58e_post
1687    o SEAICE_CGRID adjoint done
1688    o R_STAR adjoint implemented.
1689      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1690      * need to sort out init. of h0facc, etc.
1691    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1692      to be able to use it in pure forward.
1693    
1694    checkpoint58d_post
1695    o upgrade simple test-experiment to tutorial example:
1696     step.1: duplicate the experiment and (step.2) will remove the old copy.
1697      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1698      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1699      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1700      tutorial_global_oce_biogeo    <- copy of dic_example
1701      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1702      tutorial_plume_on_slope       <- copy of plume_on_slope
1703      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1704      tutorial_global_oce_optim     <- empty for now (David ?)
1705      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1706     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1707    o correct a sign problem in cost_scat.F
1708    o obcs and ptracers: fix boundary conditions for advections schemes
1709      with larger stencil
1710    o thsice adjoint: start
1711    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1712      completeness
1713    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1714      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1715    o ptracers adjoint:
1716      * avoid extensive recomputatations
1717      * fix missing re-init. of gptr (missed by TAF)
1718    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1719      me to turn off the excessive output to STDOUT that this package produces
1720    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1721      and add those terms in Vector-Invariant formulation.
1722    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1723      if the control period (xx_hfluxperiod etc) is 0
1724    o in profiles pkg, clean routines and fix details
1725    o in ecco pkg, reading ssh data:
1726      fix problem in case the model does not start at iter0=0
1727    o fix mnc-pickup/restart for ptracers
1728    o new package prifiles:
1729      code to compute profile-based cost by Gael Forget
1730      (modifs in ecco, ctrl, autodiff)
1731    o Benign bug fix in initialization (spotted by M. Mazloff) of
1732      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1733    
1734    checkpoint58c_post
1735    o adjoint: finish NLFS adjoint and provide reference output in
1736      verification/global_ocean.90x40x15/results_ad_nlfs
1737    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1738      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1739      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1740      with SEAICE_CGRID defined.
1741    o move calendarDumps from "data" to "data.cal" and clean-up the code
1742      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1743    o add useEXF & useCAL flags (for now, set in hard-coded way)
1744    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1745      (were missing in NH mode, and wrong in quasihydrostatic mode).
1746      waiting for Chris updated version of calc_gw to add those CALLs.
1747    o fix bug in quasihydrostatic S/R ;
1748      add a test for this option: global_ocean.90x40x15.qshyd
1749    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1750      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1751    o add on/off flag useOffLine for package OFFLINE
1752    o seaice:
1753      - modify advection so that it works also on the C-grid
1754      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1755        problem in multi-tile runs with C-grid
1756      - add flags for clipping ice velocities and/or masking solver forcing
1757      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1758        C-grid solver
1759      - added a few comments to seaice_diffusion.F
1760      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1761        are now exclusive)
1762      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1763        required re-ordering the code a little:
1764       + make DAIRN global variable (defined in SEAICE)
1765       + move computation of the viscosities eta and zeta into a new separate
1766         routine (because I need to recompute them in seaice_ocean_stress.F)
1767    
1768    checkpoint58b_post
1769    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1770      update output.txt of exp. aim.5l_cs.thSI
1771    o various mnc cleanups and improvements:
1772      + shrink lookup tables by factor of ~4
1773      + better error reporting when running out of lookup space
1774      + able to handle longer path/file names (up to 500 chars)
1775    o adjoint:
1776      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1777      - TBD: "hidden" mom_vecinv recomp. in dynamics
1778    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1779     (allow to differentiate between forcing components using new integer flags:
1780      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1781     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1782    o ecco
1783      - enable trend removal from SSH anomaly obs.
1784    o adjoint
1785      - a fix for PmEpR when #undef EXACT_CONSERV
1786      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1787      - try to fix "hidden" recomp. in forward_step for NLFS
1788        (NLFS seems broken sometimes after I checked it in)
1789    o seaice:
1790     - add c-grid version of the dynamic solver:
1791       + three new routines that are the c-grid substitute lsr, dynsolver
1792         and ostres
1793       + put a few fields that were local to dynsolver into global common
1794         blocks, so that I can move the computation of stresses etc into
1795         seaice_lsr (saves coding but may break the adjoint).
1796     - replace more hardwired parameters by runtime parameters
1797     - add ice masks that mask the rhs of the implicit solvers where there
1798       is no ice (commented out in seaice_dynsolver, because i am not sure
1799       if this works properly), eventually this should replace the clipping
1800       of ice velocities in seaice_dynsolver to +/-40cm/s.
1801    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1802      include it only where its needed
1803    o move balancing of fluxes before the call of external_forcing_surf
1804    o seaice:
1805      - correct units of turning angles (now they are really in degrees)
1806      - move computation of GWATX/Y out of main routine into dynsolver
1807      - initialize GWATX/Y in seaice_init
1808    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1809      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1810    o seaice: add runtime flags for turning angles (default to zero)
1811    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1812      and trend from exf forcing and ctrl control adjustments
1813    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1814      (since checkpoint57x_post)
1815    o change the default rotation period to 86164.s = the Earth rotation
1816    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1817      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1818    o seaice advection: add code for choosing between the default (2nd order
1819      central differences) and multiDim advection schemes provided by
1820      pkg/generic_advdiff
1821    o seaice:
1822      - removed all references to SEAICE_GRID.h fields from
1823        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1824        (cubed-sphere configuration will change a little)
1825      - grid computations in seaice_init are obsolete now.
1826      - cleaned up code a little so that is easier to read (hopefully).
1827      - added new (better?) discretizations of default advection and diffusion
1828        (turn on with SEAICEuseFluxForm)
1829      - replace 1 in 3d global fields by kSurface in growth.F
1830      
1831    checkpoint58a_post
1832    o seaice:
1833      - bug fix in advect.F
1834    o shelfice:
1835      - separate shelfice load anomaly from pload (breaks with time
1836        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1837        Its default is 0., but it may be computed more cleverly from (unknown)
1838        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1839        done offline. A good approximation of the pressure load anomaly is
1840        necessary to avoid large initial adjustment processes underneath
1841        deep-reaching shelfice.
1842      - small fix in ISOMIP shelfice_thermodynamics
1843      - add more sophisticated thermodynamics of Hellmer (1989), this is
1844        now the default
1845      - give a few constants more intuitive names
1846    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1847      if bulk formulae are used in long integration (especially EmPmR). Turn
1848      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1849      if balancePrintMean, the imbalance that is substracted is printed to
1850      STDOUT.
1851    o fix bug (typo) in obcs_apply_eta.F
1852    o add a new package shelfice which enables us to model the circulation
1853      underneath shelf-ice with draughts of hundreds of meters.
1854     - works
1855     - to do: + include improved thermodynamics
1856              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1857                instead of new field kTopC
1858              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1859                instead of new field R_shelfIce and new code in ini_depth.F
1860                and ini_mask_etc.F?
1861              + adjust vertical mixing schemes?
1862    o seaice pkg:
1863     - add a cpp-flag to include a simple formula for a salinity dependent
1864       freezing point of sea water at the surface
1865     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1866       meridional stresses are now different (and hopefully correct)
1867    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1868       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1869       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1870    o pkg/diagnostics: add options and parameters for regional-statistics
1871       diagnostics ; define regions by reading a region-mask from a file
1872       (might add other options later)
1873    o pkg/bulk_force:
1874     - add option and parameters to use AIM surface-flux formulae.
1875     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1876       others forcing fields (defined in PARM05, parameter file "data") are loaded
1877       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1878     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1879     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1880     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1881       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1882     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1883    
1884    checkpoint58
1885    o add "--embed-source" option to genmake2 which, when the supporting
1886      tools can be compiled (as determined by genmake2) will turn on the
1887      embed_files package which then embeds the entire MITgcm source code
1888      (*.[fFhc] + Makefile) used for the build within the executable
1889      - requested by CNH but off by default
1890      - adds a paltry <9MB to the mitgcmuv executable in most cases
1891      - only writes the output when useEMBEDSRC in eedata is true
1892    o clean up 3-dim. relaxation codes:
1893      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1894      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1895      * Thanks to Tom Haine for testing!
1896    
1897    checkpoint57z_post
1898    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1899      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1900    o fix the pickup behavior for obcs in combination with ptracers
1901    o fix a bug in ptracers_external_fields_load
1902    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1903      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1904    o transfered surface NH pressure to eta field (if exactConserv).
1905    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1906         and update lab_sea output.txt file.
1907    o completing 3-dim. relaxation code: additional term
1908         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1909      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1910      * At compile time, in "EXF_OPTIONS.h" set
1911          #define  ALLOW_CLIMTEMP_RELAXATION
1912          #define  ALLOW_CLIMSALT_RELAXATION
1913      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1914          tauThetaClimRelax3Dim = 15552000.0,
1915          tauSaltClimRelax3Dim  = 15552000.0,
1916      * 3 cases:
1917          1) Use a constant-in-time 3-dim. field
1918          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1919          3) Real-time relax. to time-evolving prescribed field
1920    o Adding Laplacian-type smoothness constraint on
1921      initial and boundary (forcing) controls (ic, bc)
1922      * enable at compile-time via
1923        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1924      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1925      * Absolute scale somewhat unclear so far
1926      * no area weighting was included since no other cost term does so far
1927    
1928    checkpoint57y_post
1929    First step for a NLFS adjoint
1930    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1931    o new init. routines for calc_r_star, calc_surf_dr
1932    o still need to deal with ini_masks_etc
1933    o testreport seemed happy
1934    checkpoint57y_pre
1935    
1936    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1937    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1938    o add new offset feature to offline pkg (plus minor cleanup)
1939    o cfc fixes for final year of integration
1940    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1941      be in GCHEM_OPTIONS).
1942    
1943    checkpoint57x_post
1944    o fix testreport Pb in multiple test experiment.
1945    o cleanup our namelist syntax in verification:
1946      - make it more F95 standards compliant (some work still needed)
1947      - allows the vast majority of our tests to work with gfortran
1948    o Non-Hydrostatic:
1949     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1950     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1951    o Allow to apply AB on T,S rather than on AB(gT,gS):
1952     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1953     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1954       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1955     - need a "clever" read_pickup to restart from the other AB formulation
1956    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1957    o remove some unused variables (reduces number of compiler warnings)
1958    o adjoint
1959      * Disable useVariableViscosity for adjoint for time being
1960        (there are a number of extensive recomputations)
1961      * Initialize certain variables needed for adjoint
1962    
1963    checkpoint57w_post
1964    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1965                 fix the singleCpuIO RS version of MDSWRITEFIELD
1966       and add a WARNING if using globalFiles=T with multi-processors.
1967    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1968      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1969    o tracer advection scheme:
1970      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1971       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1972       was not very convenient).
1973      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1974       (further tests needed for the implicit DST & Flux-Limiter schemes).
1975    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1976      and sRef for convenience, handy, when you want to initialize
1977      ptracers in a large domain with a constant non-zero value. Also,
1978      untangle ptracers_init.F a little.
1979    
1980    checkpoint57v_post
1981    o change dome exp. to use variable viscosity in side-drag terms.
1982    o remove all the files from the cfc_offline test since they are now
1983      incorporated into tutorial_cfc_offline which has been producing
1984      identical results for a few days of testing
1985    o add new parameter: sideDragFactor to enable half-slip-side BC
1986      and change side-drag S/R to use viscosity from mom_calc_visc
1987      (can switch back by setting sideDragFactor=0.); affects results at
1988      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1989       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1990    o vorticity & strain are now computed without masking, to account for
1991      no-slip-side BC in variable viscosity calculation ; mask is applied
1992      anyway later on, before computing advection/coriolis terms.
1993    o modify exp4 to test new obcs support for reading from external files
1994      and for passive tracers
1995    o fix behavior of ptracers_monitor when monitor output is written to a
1996      netcdf-file; still not independent of monitor.F (writes in the same
1997      file).
1998    o change default value of tRef (put a uniform, meaningful value for ocean
1999      & atmos) and initialize sRef (was missing, as Martin mentioned).
2000    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2001      to be proportional to enstrophy dissipation length.  Thus,
2002       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2003      This is now consistent with Smagorinsky and with the manual.
2004    
2005    checkpoint57u_post
2006    o OBCS and PTRACERS: add open boundary support for passive tracers
2007      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2008        OB-values from file; this is not different from the way theta and salinity
2009        are treated
2010      - however, Orlanski-radiation conditions are not supported, and the model
2011        will stop if you use pTracers and Orlanski at the same time.
2012      - beefed up the rountine obcs_external_fields_load: now only those open
2013        boundary values are overwritten with values from files for which there
2014        are really files, otherwise the OB-fields remain untouched. This makes
2015        it possible to use different OBs at different ends of the domain (as
2016        with EXF)
2017    o reduce number of exch calls in shap_filt (s2).
2018    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2019      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2020    
2021    checkpoint57t_post
2022    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2023    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2024      same truncation, independent of the face number: affects affects several
2025      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2026    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2027      note that biharmonic viscosity + no-slip was not tested in any experiment.
2028    o fix bug in non-linear free-surf side-drag ; generate new output for
2029      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2030    o make mnc honor the writeBinaryPrec flag for most kinds of output
2031    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2032    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2033      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2034    o add brackets in multi-terms sum to get same truncation, independent of
2035      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2036      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2037    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2038      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2039      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2040      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2041      Suggested values of viscosity parameters found in mom_calc_visc.
2042      Many new viscosity diagnostics available.
2043    
2044    checkpoint57s_post
2045    o Add clearing-house for viscosity calculations, mom_calc_visc and
2046      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2047      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2048      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2049      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2050      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2051      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2052      ViscAhStrain and viscAhTension are now retired.
2053    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2054    o In response to JMC's bug report, genmake2 now ignores any soft-links
2055      that it finds in the *current* directory when searching for files.
2056      Soft-links found in any other source directories will still work as
2057      they did before.
2058    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2059      a C routine to unlimit the stack size
2060    o mnc-ify pkg/aim snapshot vars
2061    o mnc-ify pkg/land as requested by Daniel
2062    o various changes to mnc including:
2063      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2064      - output can now be grouped so that all files within a group
2065          change the ITER portion of their names in lock-step together
2066      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2067          and works with both EXCH1 and EXCH2 (but needs more testing)
2068      - writing works for all verification test cases w/ g77 on Linux
2069    
2070    checkpoint57r_post
2071    o make MNC variable initialization happen earlier
2072    o add diagnostics for (almost) each term of the momentum Eq.
2073    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2074    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2075    o remove MINIMAL_TAVE_OUTPUT option ;
2076      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2077    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2078      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2079    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2080    o add time-dependent SST, SSS control
2081    o cost terms in ecco/ modularized (new cost_generic.F)
2082    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2083    o new infrastructure for seaice model vs. obs misfits in seaice/
2084      * driver from the_main_loop.F is seaice_cost_driver.F
2085      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2086      * gradient check in Exp. 6a of natl_box_adjoint/
2087    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2088      (see README file)
2089    
2090    checkpoint57q_post
2091    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2092    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2093      - bug was reported by Jean-Michel and Ian Fenty
2094    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2095      update exp. cpl_aim+ocn output.
2096    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2097      Needed for high-res. runs with large global files
2098      to be able to limit tapelev size
2099    o Changed some tests for adjoint:
2100      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2101      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2102      * global_ocean.90x40x15/ back to default 3-level checkpointing
2103    o Modifications to enable scripted COMMON to MODULE conversion
2104      * verification/OpenAD/code/ has necessary scripts and description;
2105      * converts, compiles and runs successfully;
2106    
2107    checkpoint57p_post
2108    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2109    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2110      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2111    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2112    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2113      (was already the case for dissipation with mom_vecinv,
2114       and also the case for grad.PhiHyd when staggered-timeStep)
2115      This will allow to put dissipation out-off the AB time-stepping.
2116     Unfortunately, affects truncation error. Update output of exp. that "fails"
2117      (cg2d matching number) and leave the others for later: front_relax(10),
2118      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2119      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2120    
2121    checkpoint57o_post
2122    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2123      (2) its ready to be documented during the 20050801 DocFest
2124    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2125      for ideal_2D_oce and lab_sea on linux_ia32_g77
2126    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2127      in global1x1_tot/code_seaice_adj to access indices 32, 33
2128      (worth another tag)
2129    
2130    checkpoint57n_post
2131    o adding precip control xx_precip 32
2132    o adding swflux control xx_swflux 33
2133    o Replacing 10 forcing penalty cost routines by 1 generic.
2134    o Implementing partitioning in time-mean and variable adjustment
2135      for atmos. state.
2136    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2137    o in natl_box_adjoint:
2138      * updated exp 1 to 10
2139        (but does not have time-mean vs. variable split results yet)
2140    o updated global1x1/*_seaice_adj/
2141      to incorporate latest changes
2142    o enable useSingleCpuIO for mdsio vector routines
2143      (applies in particular to tapelev I/O)
2144    o removed inefficient K-loop in all active_file*control*.F
2145    
2146    checkpoint57m_post
2147    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2148      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2149    o pkg/exch2: filling of face-corner halo regions is optional
2150      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2151    
2152    checkpoint57l_post
2153     tag before updating tutorials (pre-release-2)
2154    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2155       for output and interpolation of input fields onto model grid)
2156    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2157       Affects results of exp. rotating_tank ; update output.txt.
2158    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2159          and taking the square quantity and/or using a fraction-weight field.
2160    o fix aim_diagnostics_init.F mate numbers.
2161    o add mnc output capability to diagnostics/diagstat and update
2162      our cvsignore files for the ACSII output generated
2163    
2164    checkpoint57k_post
2165    o lab_sea now uses diagnostics package and provides a suite of
2166      new EXF diagnostics output.
2167    
2168    checkpoint57j_post
2169    o exf
2170      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2171        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2172        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2173      * extended diagnostics output
2174        - now includes all EXF variables
2175        - hs, hl moved to common block
2176        - separate S/R for diagnostics, called after ctrl vector is added
2177        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2178        - EXFqnet contains true Qnet (i.e. includes qsw)
2179      * updated verif. lab_sea, global_with_exf
2180      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2181        to ensure that diagnostics sees a true EXFqnet
2182    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2183    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2184      several times with different frequencies.
2185    o mnc-ify the thsice package as requested by Daniel Enderton
2186      - the monitor--MNC output needs work
2187      - many attributes need to be added (most are currently blank)
2188    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2189      - many attributes need to be added (most are currently blank)
2190    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2191    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2192    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2193      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2194         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2195    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2196     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2197    
2198    checkpoint57i_post
2199    o Diagnostics package was changed: diagnostic allocation is now deactivated
2200      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2201    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2202      add 1rst Order upwind vertical Shear.
2203    o add a quick fix for A/B checkpointing in OFFLINE mode
2204    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2205      end-run around the C/Fortran linking horror in eesup/src/timers.F
2206    o added pkg/runclock: allows user to terminate run based on wall clock
2207    o added non-hydrostatic scaling parameter: nh_am2
2208    o pkg/my82: futile attempt to make results compiler-independent by adding
2209      some "_d 0", etc. no effect.
2210    o for mnc output, fill the 'T' coordinate var with myTime and create a
2211      separate 'iter' variable for iteration count
2212    o pkg/diagnostics:
2213      add new capability: output of Global/Regional & per-level statistics ;
2214      tested against monitor output (including land & thSIce) on various exp.
2215    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2216    
2217    checkpoint57h_done
2218      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2219      data.diagnostics, data.gchem, data.ptracers) is done.
2220    
2221    o pkg/diagnostics: prepare for Global/Regional statistics.
2222      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2223    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2224      and rename it: DIFFERENT_MULTIPLE
2225    
2226    checkpoint57h_post
2227    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2228    o pkg/diagnostics: change output frequency, now in seconds (instead
2229      of Nb of iterations). This requires to change data.diagnostics.
2230    checkpoint57h_pre
2231    
2232    o in mnc, let the user create the output dir if both mnc_outdir_date
2233      and mnc_outdir_num are false
2234    o add fflags() to pkg/diagnostics which allows one to specify, on a
2235      per-file basis, the file precision [default behavior is unchanged]
2236    o added diagnostics to pkg/kpp, including computation of mixed layer
2237      depth based on a temperature/density criterion
2238    o updated verification/natl_box to test the new pkg/kpp diagnostics
2239    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2240    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2241    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2242      not mnc -- this mistake was found by JMC and is now corrected
2243    
2244    checkpoint57g_post
2245    o add Adams-Bashforth 3rd Order time stepping:
2246      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2247      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2248    checkpoint57g_pre
2249    
2250    o make lambda[Theta,Salt]ClimRelax spatially varying
2251      (default remains spatially uniform constant based on tau)
2252    o added new control variables
2253      * init. uVel, vVel, etanN
2254      * lambda[Theta,Salt]ClimRelax
2255    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2256      (suggested by G. Forget)
2257    
2258    checkpoint57f_post
2259    o add parameter "baseTime" = model base time = time at iteration zero
2260      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2261      account for baseTime shift
2262    o move Coriolis arrays from PARAMS.h to GRID.h
2263    checkpoint57f_pre
2264    
2265    o mnc-ifying the seaice package
2266    o introduced an alternative length scale calculation for use in the limiting
2267      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2268    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2269    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2270      as well as grad(vort3).  Made it compatible with both approximate form
2271      for the cubed sphere and full form of these gradients.  Added flag
2272      useFullLeith to select between approximate and full form.  
2273    o add "d0" in getcon.F to reduce differences between compilers/platforms
2274      update output.txt of exp. fizhi-gridalt-hs
2275    o change port_rand funtion to allow to set the seed.
2276    o fix obscure MNC bug involving conversion between reals and integers
2277      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2278        new version is now more standards-compliant
2279    o adjoint-related modifications
2280      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2281      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2282      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2283    
2284    checkpoint57e_post
2285    o Adding eddy stress controls a la Ferreira et al.
2286    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2287    
2288    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2289      update output.txt of exp. fizhi-gridalt-hs
2290    o add more "Z" dimensions and associated coordinate vars to MNC
2291    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2292    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2293      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2294      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2295      months and years.  Requires pkg/cal.
2296    o diagnostics: add pickup functionality
2297      - off by default for backwards compatibility
2298      - current version only uses MDSIO -- MNC will be added
2299    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2300    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2301    
2302    checkpoint57d_post
2303    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2304    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2305      output from the diagnostics package
2306    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2307    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2308      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2309    o add coordinate variables to the MNC output from the diagnostics package
2310    o change MNC-flags default value: true when useMNC=TRUE
2311    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2312      the ability (off by default) to read the grid information using MNC
2313    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2314    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2315    o do snap-shot diagnostics at the middle of the time-interval (instead of
2316      at the end).
2317    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2318      new test for AIM with thSIce + slab-ocean
2319    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2320    o move state variable diagnostics to the beginning of the time step ;
2321      (note: still needs some work specially for snap-shot diagnostics)
2322      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2323    
2324    checkpoint57c_post
2325    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2326    o generate new output.txt files on faulks with g77 & the new -ieee option
2327    checkpoint57c_pre
2328    
2329    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2330      update output.txt of exp. global_ocean.90x40x15
2331    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2332      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2333    o add saltFlux(+File) forcing capability with periodicExternalForcing
2334    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2335    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2336    o improvements for the MNC output from DIAGNOSTICS:
2337      - correct handling of the unlimitied dimension
2338      - all dims now have associated coordinate variables
2339      - variables located at U, V, and Corner ("Z") points are now written
2340        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2341        *all* data points are output
2342    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2343    o added pkg/seaice/seaice_monitor.F
2344    o mdsio_readfield.F can now read files visible only to master MPI process.
2345    o pkg/seaice: some test code for ice-modified ocean stress
2346    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2347      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2348      spurious negative numbers for precipitation and humidity.  Will cause
2349      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2350    o pkg/ctrl/
2351      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2352        May be enabled via doPackDiag
2353      *  introduce z-scaling of
2354         + gradient (doZscalePack) and
2355         + control (doZscaleUnpack)
2356    o pkg/mdsio/
2357      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2358      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2359    
2360    checkpoint57b_post
2361    o simplify options in diagnostics_fill arguments (remove weird combinations)
2362    o fix MNC coordinate variables so that they now contain per-face index
2363      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2364      general, EXCH2 grids are only aligned to a "local" coordinate system
2365    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2366    o Implement instantaneous output within pkg diagnostics:
2367      setting a negative frequency in data.diagnostics produces
2368     "snap-shot" output (as opposed to time-average if freq > 0)
2369    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2370      NOTE: change ptracer diagnostics name: use 2 characters to work with
2371            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2372    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2373      becomes the coordinate variable for the 'T' dimension
2374    o add CF-style coordinate variables to MNC
2375      - just a first cut:  numbers are meaningless on the cubesphere and
2376        missing along the T axis but otherwise it works!
2377    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2378    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2379    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2380      this is based directly on what the model compute, so that the content of
2381      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2382    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2383    o clean up build options files for SunOS, in particular
2384      - remove -traditional from xmakedepend
2385      - change -xarch=v9 to -xarch=native for f77
2386      - restore use of make (not gmake)
2387      - add CC=gcc if using g77
2388    o changes per discussion of AM, JMC, & EH3 today:
2389      - move redundant "grid" variables out of "state" -- in preparation of
2390        creating proper CF-style coordinate variables and in recognition
2391        that any/all grid variables can be easily copied (eg. w/NCO) from
2392        the grid files into any of the other NetCDF files
2393      - *always* output grid variables with MDSIO (this will eventually be
2394        changed)
2395      - output MNC grid file if useMNC is true
2396    o every instance of _END_MASTER() has been found and replaced with
2397      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2398      preprocessors
2399    o re-arrange diagnostics pkg initialisation:
2400     - allow each package to extend the available diagnostics list
2401     - add some checking and fix small problems (multi-threaded, ...)
2402     - new S/R diagnostics_fill (replace fill_diagnostics):
2403       look through the short list of active diag. (instead of the long list)
2404       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2405    
2406    checkpoint57a_post
2407    o this set of changes restores TAMC compatibility
2408      tested for global_ocean.90x40x15 adjoint on trough
2409      (what a pain)
2410    
2411    checkpoint57a_pre
2412    o some modifs in tools/build_options for sunos
2413    o call ctrl_pack for ctrl at end for optimcycle=0
2414    
2415    checkpoint57
2416    o add horizontal bi-harmonic viscosity for vertical velocity
2417      - new parameter viscA4W (defaults to viscA4)
2418      - affects only non-hydrostatic code
2419      - to be done: no-slip lateral boundary conditions
2420    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2421    o implement Implicit Vertical advection for pTracers
2422    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2423      (implemented also for implicit vertical diffusion & advection)
2424    o OBCS: extend application of tracer open boundary conditions
2425      to a strip beyond the boundary of width Olx/Oly
2426    o add call monitor to TAF set of required calls (flow directives)
2427      and include in natl_box_adjoint
2428    o untangle a few ifdefs related to cost, ctrl, autodiff
2429      untangel a few ALLOW_ECCO_OPTIMIZATION
2430    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2431      (theta2, salt2 in ecco_cost_weights)
2432    
2433    checkpoint56c_post
2434    o OBCS as control variables
2435      - update ctrl_ad_diff.list, obcs_ad_diff.list
2436      - remove balance of obcs controls from default
2437      - fix index bug nobcs in ctrl_init
2438      - fix dummy fields filen in ctrl_pack
2439      - add dummy weights for obcs
2440    o lsopt: comment out fort.94 output
2441    o optim:
2442      - remove unnecessary header files
2443      - adjusted namelists
2444      - add xerbla.F to Makefile
2445    o exf:
2446      - multiple modifications of exf_check_range
2447      - unit change in exf_init_runoff from [m/year] to [m/s]
2448    o mdsio:
2449      - i/o-vector change debugLevel from debLevA to debLevB
2450    
2451    checkpoint56b_post
2452    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2453      is called from DO_THE_MODEL_IO
2454      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2455      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2456      - clean up PTRACERS_WRITE_TIMEAVE a little
2457    o add another verification experiment that tests both the cfc-pkg and
2458      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2459      reactive tendencies treated inline with regular timestepping
2460    o testreport previously did a lousy job of comparing small numbers, so
2461      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2462      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2463      testreport.
2464    o ptracers_monitor: bug fix for MPI
2465    
2466    checkpoint56a_post
2467    o GCHEM: finish reorganizating the package
2468      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2469        (introduces another 3D-array for each passive tracer, but only if
2470        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2471        gchemTendency is not needed because the timestep is done separately)
2472      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2473      - GCHEM is now---more or less cleanly---separate from PTRACERS
2474      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2475        so clear to me how that should be done in a general way.
2476    o CFC: improve formatting of output in CFC_ATMOS
2477    o PTRACERS:
2478      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2479        that ALL experiments with ptracers enable can be checked. This makes
2480        GCHEM_MONITOR obsolete.
2481      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2482        monitorFreq
2483      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2484    o add PTRACERS (PTR0[1-5]) to testreport output
2485    o exf_check_range:
2486      * default changed to .TRUE.
2487      * will check values for niter0 if debLevA, every timestep if debLevB
2488      * STOP in exf_check_range if 'out of range'
2489      * range chosen generous to allow for potential extema
2490      TBD: a version with stricter range
2491           permitted range would be runtime parameters
2492    o GMredi:
2493      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2494      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2495      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2496    o GCHEM:
2497      - move call to GCHEM_FORCING_SEP, so that it is now called before
2498        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2499      - introduced a useGCHEM runtime flag and applied it everywhere.
2500      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2501        this flag is now only visible within GCHEM-pkg routines.
2502      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2503        be replaced by a 3D array that is computed before thermodynamics; for
2504        this, the tracer ID iTracer had to be included into the parameter list
2505        of ptracers_forcing
2506      - set up forward_step to call gchem_forcing, that will replace
2507        gchem_forcing_int in ptracers_forcing
2508      - cleaning up
2509    o small cleaning of exch2: remove files that are also in eesupp/src
2510    
2511    checkpoint56
2512    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2513    o mnc: cleanup "full" files--fixes out-of-memory problem
2514    o ECCO-GODAE
2515      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2516      * fully merged and updated from SIO code
2517        windstress sign change affects
2518        - exf_inscal_[u/v]stress
2519        - sign of xx_tau[u/v] adjustments
2520        - signs in cost_scat
2521      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2522      * natl_box_adjoint updated and compressed
2523      * 2-level checkpoint switch added
2524        (tested in EXP. 1 of natl_box_adjoint)
2525      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2526    o SVD
2527      * first complete, non-hacked version for SVD calculations
2528      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2529        performed via direct access files admtlm_vector.it????
2530        (via ctrl_[un]pack)
2531      * optimcycle is used for ARPACK iteration counter
2532        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2533      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2534        and add linear transforms where necessary
2535      * controls are initial/final SST, SSS (can be extended; need to check
2536        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2537    o mdsio: filename info to both stderr, stdout
2538    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2539      from sign change
2540    
2541    checkpoint55j_post
2542    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2543      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2544    o add consistent build directories and .cvsignore files to verification
2545    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2546    o make all subroutines 30 or less characters in length for certain older
2547      compilers to work (a thorough search only turns up two routines in
2548      pkg/ptracers)
2549    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2550      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2551    
2552    checkpoint55i_post
2553    o change arrays for total vertical diffusivity (2.D if explicit,
2554      3.D if implicit) ; each ptracer uses its own background value.
2555    o added mnc/NetCDF output capability to ocn_compon_interf
2556      - added bits to verification/cpl_aim+ocn so that it can run on
2557        ITRDA and other clusters without the mpirun "-wd" option
2558    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2559      configuration
2560    o give MNC the ability to create additional files rather than
2561      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2562      - the default is just less than 2GB which is a practical limit
2563        on many systems
2564    o Compute the non-local term using either KPP vertical diffusivity (=default)
2565       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2566    
2567    checkpoint55h_post
2568    o add verification test "vermix"
2569    o remove all the *_ioinc flags and replace with the single global
2570      outputTypesInclusive flag
2571    o allow to set a vertical profile of vertical diffusivity for T & S
2572    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2573    o useMNC moved from data.mnc to data.pkg
2574    
2575    checkpoint55g_post
2576    o Renaming carbon AD experiments to comply with testreport conventions
2577    o Updating adjoint of Held-Suarez hs94.1x64x5
2578    o Fixing directives for non-ECCO forward_step, after ECCO directives
2579      have been fixed to avoid recomp. of do_oceanic_phys
2580      Works well for global_ocean.90x40x15,
2581      but recomp. issue remains for carbon
2582    o Updating adjoint output for natl_box_adjoint after
2583      pkg/ecco has been modified (see taga c55d_post)
2584    
2585    checkpoint55f_post
2586    o rename to timeave_init_fixed
2587    
2588    checkpoint55e_post
2589    o some delicate re-shuffle of store directives to avoid one
2590      extra call of do_oceanic_physics
2591      affects ecco_the_main_loop.F, do_oceanic_physics.F
2592      checkpoint_lev1_directives.h
2593    o NB: this may break global_ocean adjoint temporarily,
2594      but it is clear how to fix it. Will do later, need this now.
2595    
2596    checkpoint55d_post
2597    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2598    o ecco_cost_weights is modified to 1x1 runs
2599    o modifs to allow observations to be read in as
2600      single file or yearly files
2601    o enable to read exf forcing fields as either
2602      single file or yearly files (flag useExfYearlyFields)
2603    checkpoint55d_pre
2604    
2605    o switch between 2-level and 3-level checkpointing
2606    o add ability of MNC to write local and "partial" (eg. 2D slices where
2607      the full 3D field is never actually stored) arrays to NetCDF files
2608      with the correct (that is, the complete multi-dimensional) set of
2609      array indicies
2610      - used in mom_vecinv() to write the diagFreq output
2611      - tested (demonstrated) in verification/aim.5l_cs
2612    o further mnc-ification
2613      - add verification/lab_sea to the list with mnc setups
2614      - fix undefined mnc v-names in cd_code
2615      - add kpp to mnc output (both snapshot and timeave)
2616    o non-hydrostatic code
2617      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2618        in calc_gw.F
2619      - defaults to viscAh
2620      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2621        friction or Leith) in non-hydrostatic mode, as long as there is
2622        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2623    o pkg/cost
2624      extend simple cost functions to treat time mean quantities
2625      (T,U,V) via cost_accumulate_state from cost_tile
2626    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2627        be 2 times larger than the minimum size the advection scheme requires.
2628        now get a perfect conservation of salt in advect_cs test-exp (updated)
2629    o GGL90 (Gaspar's TKE mixed layer)
2630      - add horizontal diffusion of TKE, requires exchanges in
2631        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2632        default. In OPA there is no horizontal diffusion of TKE but the
2633        mixing coefficients are computed from a horizontal average of TKE of
2634        6 points or so. I think that diffusion has a little more physical
2635        justification.
2636      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2637        was in vain)
2638      - mask tke-variable in ggl90_init
2639    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2640    o fix biharmonic diffusion on CS-grid.
2641    o more obcs stuff
2642      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2643        for reading boundary values. This routine is called from
2644        obcs_prescribe_read
2645      - updated obcs_check
2646      - changed sponge layer relaxation parameter units for days to seconds
2647      - turned off sponge layer by default
2648      - changed argument list of OBCS_CALC to myTime+deltaTclock
2649      - fixed about 35 bugs in obcs_external_fields_load
2650    
2651    checkpoint55c_post
2652    o obcs stuff
2653      - new runtime flags useOBCSprescribe, useOBCSbalance
2654      - re-arranged obcs_calc
2655      - moved exf_getobcs to obcs_prescibe_read
2656        obcs_prescibe_read is called after ORLANSKI stuff
2657        and independent of it (executable can contain all).
2658      - updated obcs_check
2659      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2660        These may be necessary only if tangential velocities are
2661        prescribed at OB, not sure, needs testing.
2662    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2663      which simplifies the calls and passes the ifc check-bounds test
2664    
2665    checkpoint55b_post
2666    o add a 2D scalar, Z location, exchange_2 routine.
2667    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2668      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2669      affects advect_cs results (for the wrong reason): update output.txt
2670    o use a more standard discretization for biharmonic viscosity ;
2671     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2672      affects results of dome set-up: update output.txt
2673    o fix gad_advection.F (CubedSphere part), back to version 1.23
2674    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2675    
2676    checkpoint55a_post
2677    o merged code to
2678      * prescribe/read time-dependent open boundaries
2679        (works in conjunction with exf, cal)
2680      * sponge layer code for open boundaries
2681      * each boundary N/S/E/W now has its own CPP option
2682        (healthy for the adjoint)
2683    
2684    checkpoint55
2685    o up-to-date adjoint of previous breaks
2686      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2687      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2688      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2689      - carbon: * remove tr1-related adjoint verification
2690                * add ptracer as control variable
2691    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2692      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2693    
2694    checkpoint54f_post
2695    o in verification/carbin/ remove experiment related to
2696      ALLOW_PASSIVE_TRACER (array tr1 etc)
2697      code_ad/ input_ad/ results_ad
2698    
2699    o add two new packages
2700      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2701        + subject to optimization (memory)
2702      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2703        + subject to reordering (many GOTOs in the original code)
2704        + so far opps is called for every (i,j) point, and then operates in
2705          the vertical; one may want to reorder the scheme in order operate in
2706          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2707          fields)
2708    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2709      - all verification tests compile and run with linux_ia32_g77
2710      - defaults are compatible with current input files--nothing
2711        should change if you were not previously using MNC
2712      - MNC output has been added in numerous places (eg. timeave)
2713        but there are still a few writes not yet do-able with MNC
2714        (this is in progress)
2715      - flags now allow for either/or/both use of MDSIO and MNC and
2716        documentation will soon follow
2717      - numerous small formatting cleanups for ProTeX
2718    o add version info (via BUILD_INFO.h) to MNC and stdout
2719    
2720    checkpoint54e_post
2721    o add two new packages
2722      - pp81 (Packanowski and Philander, 1981), Richardson number and
2723        stratification dependent mixing
2724      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2725      - these scheme operate in a similar manner as KPP (without ghat, of
2726        course), however there is only one diffusivity that is used for both
2727        temperature and salinity (and passive tracers)
2728    o add offline package
2729    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2730      provided by Stephanie Dutkiewicz
2731    o genmake2: add ability to search for C compilers and cleanup test output
2732      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2733    
2734    checkpoint54d_post
2735    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2736    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2737      leading to additional shift by 5 days each year of integration
2738       (i.e. leading to considerable offset over the years)
2739    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2740    o start with no AB and no initial filtering (staggerTimeStep):
2741      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2742    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2743      (external loading & cpl import/export stay in forward_step.F)
2744    o update coupling interface to work with new staggerTimeStep
2745    o change MDSIO ptracers_pickup.
2746    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2747    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2748    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2749    
2750    checkpoint54c_post
2751    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2752      this affects (truncation error) output.txt of test-exp:
2753       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2754    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2755    o change Qnet to always be the net heat flux, (+upward).
2756      affects (truncation error) output of natl_box exp.: updated
2757    o define the max number of passive tracers in PTRACERS_SIZE.h
2758    o start to test mnc routinely in exp0
2759    o add sea-ice loading (sIceLoad) as a new forcing field.
2760    
2761    checkpoint54b_post
2762    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2763       impressive on Altix and Opteron systems)
2764    o diagnostics can now write NetCDF files through the mnc package
2765    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2766    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2767    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2768      affects (truncation error) output of lab_sea & natl_box exp.: updated
2769    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2770    
2771    checkpoint54a_post
2772    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2773    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2774    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2775    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2776      + internal_wave (shift in writing cg2d_ini_res)
2777    checkpoint54a_pre
2778    
2779    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2780      - modified verification/lab_sea and natl_box_adjoint accordingly
2781    
2782    checkpoint54
2783    checkpoint53g_post
2784    o prepare splitting of thermodynamics: store convect.counter in common block
2785    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2786      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2787    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2788    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2789    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2790    o restore adjointability
2791    
2792    checkpoint53f_post
2793    o modifications that affect AIM experiment results (update output.txt):
2794      - no advection of S at top interface Nr (pkg/generic_advdiff)
2795      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2796    o AIM pkg:
2797      - include stability function into surf.Flux derivative relative to Tsurf
2798      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2799    
2800    checkpoint53e_post
2801    o merged cylindrical coord configuration
2802    o added rotating_tank experiment
2803    checkpoint53e_pre
2804    
2805    checkpoint53d_post
2806    o faulks upgraded: re-generate output.txt that have changed:
2807       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2808    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2809    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2810    o added Sadourny discretization of Coriolis
2811      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2812      - re-enabled use of omega3 (useAbsVorticity)
2813    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2814      vector-invariant equations
2815      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2816    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2817      hopefully without new bugs
2818      - still to do: biharmonic friction for non-hydrostatic w
2819    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2820    o regenerated output for global_ocean_ebm (using -ieee)
2821    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2822      of mom_common/
2823      - simple re-arrangement of instructions within computing loop
2824    checkpoint53d_pre
2825    
2826    checkpoint53c_post
2827    o new version of coupler for AIM+thSIce and Ocean models
2828     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2829     - land: change Evaporation of snow
2830     - aim with thSIce: fix bug in snow-precip.
2831    o changes to calc_gw.F
2832     - bug fix for w^2 term near the bottom boundary
2833     - (hopefully) improve the lateral slip boundary condtions for use with
2834        partial/looped cells
2835      - because the bug fix changes two verification experiments anyway (exp5
2836        and plume on slope), change the lateral boundary condition from half slip
2837        to the value of no_slip_sides
2838    o ebm package wasnt quite up to the parallel task. Fixed that.
2839    o Adjoint of EBM package + verification
2840      * TLM OK
2841      * ADM not sufficient accuracy yet (needs further testing)
2842    
2843    checkpoint53b_post
2844    o Commiting new energy balance model to repository
2845      * package is pkg/ebm
2846      * verif. is verification/global_ocean_ebm
2847      * references are in ebm_driver.F
2848    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2849    C        Global thermohaline circulation. Part I:
2850    C        Sensitivity to atmospheric moisture transport.
2851    C        J. Climate 12(1), 71-82
2852    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2853    C        Global thermohaline circulation. Part II:
2854    C        Sensitivity with interactive transport.
2855    C        J. Climate 12(1), 83-91
2856    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2857    C        Destabilization of the thermohaline circulation
2858    C        by atmospheric eddy transports.
2859    C        J. Climate 7(12), 1870-1882
2860    o Will need long integration testing.
2861    checkpoint53b_pre
2862    
2863    o created pkg/mom_common in preparation for variable viscosity code
2864    o renamed and split ini_mnc_io
2865    o pkg/land: only liquid water can diffuse or run-off
2866    o AIM using land: soil wetness availability account for snow
2867    o added printMapIncludesZeros to EEPARMS namelist
2868    
2869    checkpoint53a_post
2870    o restore TAMC compatiility for exf_constants.h
2871      (no usage of _d in .h)
2872    o Additional storing in KPP in an attempt to fix
2873      TAMC problem with adjoint of KPP code.
2874      (no success...)
2875      Identical code works fine with TAF.
2876    o Fixed verification/natl_box_adjoint experiments.
2877      Initial conditions for Experiments 4 and 5 are now
2878      set to "SEAICE_initialHEFF=0", which is more reasonable,
2879      and hence gives results closer to that of Experiment 2.
2880      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2881    
2882    checkpoint53
2883    o stable checkpoint with up to date adjoint
2884      TLM tests only run for 1st grdchk at the moment. Its unclear if
2885      this is a code problem or a problem with resetting code for g_
2886      variables that is being autogenerated wrong.
2887      Otherwise:
2888       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2889       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2890         are both still in chaos following their security messes.
2891    
2892    checkpoint52n_post
2893    o various build (mostly genmake2) changes including:
2894      - ability to build/run more easily within Cygwin and MacOS X
2895      - more complicated Makefiles with a stronger dependence on Gnu Make
2896    o pkg/seaice modifications
2897      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2898        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2899        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2900      - changed proxy for geostrophic velocity and updated
2901        verification/lab_sea/results/* accordingly
2902      - removed ADI dynamic solver from pkg/seaice
2903      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2904        they caused a segmentation fault under certain circumstances
2905      - removed unused field WATR
2906    o bug fix in exf-package:
2907      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2908         now reflect that.
2909    o small fixes in the cal-package:
2910      - set reference date to first of January for the 'model'-calendar
2911      - failing of cal_CheckDate in cal_FullDate now actually results in a
2912        warning
2913    o small modifications in exf-package to increase flexibility:
2914      - change climtempfreeze from a constant to a runtime parameter that
2915        is specified in data.exf_clim (default = -1.9)
2916      - introduce runtime parameter windstressmax (default = 2.0) that is
2917        specified in data.exf
2918    o fix in pkg/thsice:
2919      - update Evap (Tsf changes) to be consistent with Latent heat flux
2920      - maintain snow precipitation unchanged (even if Tsf >=0).
2921     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2922    
2923    checkpoint52m_post
2924    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2925      this does not change any of the results, because myIter=0 in swfrac always
2926      lead to jwtype=2 (the default anyway), but the call makes little sense
2927      as a default
2928    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2929    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2930      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2931    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2932    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2933    o extending useSingleCpuIO option to work with new exch2 I/O format
2934      - old-style, missing-tile I/O is still accessible by defining CPP
2935        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2936    o monitor package can write to NetCDF files and/or STDOUT
2937    o fix re-definition bug in MNC_GRID_INIT_ALL()
2938    o doc/api_reference added
2939      - a framework for building an API Reference Manual using all
2940        the "protex" comments embedded in the code
2941      - see pkg/generic_advdiff, pkg/mnc for examples
2942    o MNC:
2943      - make myThid the last argument for all subroutines
2944      - new default for the grid files: NO halos
2945      - add useMNC and other run-time flags
2946      - separate per-file-group handling of the unlimited dimension
2947      - early initialization of MNC w/ flags read at the eeboot stage
2948        and lookup tables set in initialize_fixed
2949      - write all MNC output to a freshly-created directory
2950    o thermodynamics sea-ice (thsice) is now tested with testreport.
2951    o test exp. advect_cs: use the standard cs32 grid ; update output.
2952    o Added functionality to grdchk:
2953      pick global i,j,k position (or nearest wet) where to perform check.
2954    
2955    checkpoint52l_post
2956    o new land formulation:
2957      a) use ground enthalpy as prognostic variable to ensure exact
2958         energy conservation.
2959      b) account for water temperature and for latent heat of freezing
2960         in all processes (rain, run-off, ground storage)
2961      c) compute surface and ground temperature implicitly.
2962    o aim_v23 modification for new land model:
2963      a) Treat separately land / ocean / sea-ice surface fluxes
2964         to allow implicit computation of land & sea-ice surface temp.
2965      b) add snow precipitation.
2966    checkpoint52l_pre
2967    
2968    o fix problem (when 1 tile is empty) in min/max monitor.
2969    o fix bug in timeAve (u,vZetatave in common block)
2970    o no restoring terms under ice for pkg/seaice
2971    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2972    o bug fix for pkg/seaice pickups
2973    o change MNC call locations and add coordinate attributes
2974    o mask vorticity at the corner ; affects global_ocean.cs output
2975    o fix ini_curvilinear_grid ; test CS experiments with mpi
2976    o aim.5l_cs: modify sea-ice fraction input file ; update output
2977    o exf: Adding simple range check routine for exf fields after read
2978    
2979    checkpoint52k_post
2980    o removed top-level directory "diags"
2981      - we migrated these functions to pkg/timeave a long time ago
2982    o fixed bug introduced in pkg/monitor
2983    o accuracy ctrlprec = 32 insuffient for gradient checks using
2984      averaged fields (I/O via cost_averages)
2985      -> use ctrl.h in active_file*.F to control I/O precision.
2986    o paramter list of CALL ADTHE_MAIN_LOOP
2987    o added initial do_the_model_io to ecco
2988    o set all ...Freq to zero after cost_final
2989      taveFreq, dumpFreq, pChkptFreq
2990    o MAIN and ECCO differentiability restored
2991    
2992    checkpoint52j_post
2993    o fix nchklev in tamc.h for global_ocean...
2994    o Bringing flow and store directives up-to-date
2995    o Really weird thing!
2996      call do_the_model_io from the_main_loop with parameters
2997      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2998      TAF places a faulty re-call of initialise_varia
2999      after cost_final call which should not be there!
3000    checkpoint52j_pre
3001    
3002    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
3003      error messages
3004    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
3005    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
3006      debug output
3007    o modfied mdsio_writefield.F to handle non-global files under exch2
3008    o update AIM Cubed-Sphere exp (aim.5l_cs):
3009      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
3010    o update AIM Equatorial Channel exp:
3011      use standard aim_v23 pkg and change the SST fields to be more realistic.
3012    o globalFile now works with exch2
3013    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
3014      mon_vort3.F to make exch2 friendly with >1 tile per cube face
3015    o limit timeave output for hi-res integrations
3016    
3017    checkpoint52i_post
3018    o removed CPP_EEOPTIONS.h from verification/*/code
3019    o updated the tiling for global_ocean_pressure
3020    checkpoint52i_pre
3021    
3022    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
3023      the old pkg/aim).
3024    
3025    checkpoint52h_pre
3026    o shortened offending lines in exch2_send_rx?.template
3027    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
3028    o genmake2: add build & execute test for NetCDF code
3029    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
3030      old grid files, moved CPP_EEMACROS.h to pkg/exch2
3031    o added useSingleCPUIO flag to monitor.F and mon_out.F
3032    o added temporary hack for sea-ice dynamics on the cube:
3033      metric terms are ignored and it is assumed that
3034      there is no sea-ice on cube faces 1, 2, 4, and 5.
3035    
3036    checkpoint52f_post
3037    o added exch2 cube routines to pkg/exch2
3038    o modified hs94.cs-32x32x5 to use it
3039    o added new grid files to hs94.cs-32x32x5
3040    checkpoint52f_pre
3041    
3042    checkpoint52e_post
3043    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
3044      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
3045    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
3046      to work with implicit vertical advection and AB ;
3047    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
3048    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
3049     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
3050    checkpoint52e_pre
3051    
3052    o fix bug in impldiff when Nr=1 or Nr=2.
3053    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
3054    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
3055    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
3056      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
3057    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
3058    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
3059    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
3060    
3061    checkpoint52d_post
3062    o re-tiled many expts to allow comparison in multi-processor mode
3063      - updated output accordingly
3064      - changed hs94.128x64x5 to use intial T from file rather than use the
3065        random number generator
3066    o add infrastructure in model routines for fizhi and gridalt packages
3067    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
3068    o changes to permit hi-res, cubed-sphere, configuration
3069      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
3070      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
3071      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
3072        of surface winds for the cube
3073      (A verification experiment, based on global_ocean.cs32x15, but with
3074       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
3075       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
3076       complete with example surface forcing files and matlab scripts to look
3077       at the output and compare it with that of global_ocean.cs32x15.)
3078    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
3079       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
3080       to conform to the common rule.
3081    o check-in the first version of the coupler + interfaces for multi-components
3082       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
3083       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
3084       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
3085       - ocean and atmos. share the same horizontal grid (no interpolation).
3086       - exchanges between component and coupler is done in forward_step
3087    o new verification experiment, cpl_aim+ocn:
3088       coupled ocean - AIM atmosphere on cs32 grid.
3089    
3090    checkpoint52d_pre
3091    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
3092    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
3093    
3094    checkpoint52c_post
3095    o Fixing OPTIONS files for use of exf:
3096      - ALLOW_ECCO not needed
3097      - ECCO_CPPOPTIONS.h should not be included from
3098        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
3099        as has been the case in the past
3100      - All cal/exf related options are currently set in
3101        single header file. Should remain so until we
3102        agree on a consistent new policy.
3103    o Removed all CPP options for cal package.
3104      cal has no more CPP options.
3105    o modified STOREs in GAD_ADVECTION
3106    o corrected key comp. for passkey
3107    
3108    checkpoint52b_post
3109    o new version: "thsice" of thermodynamic sea-ice pkg:
3110     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
3111     - modify fluxes but do not change theta directly;
3112     - light cleaning of bulk_force pkg (still needed with thsice).
3113     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
3114       + output_thsice.txt to test thsice & bulk_force pkgs.
3115    o put back grid & coriolis monitor output.
3116    checkpoint52b_pre
3117    
3118    o call "do_the_model_io" at the beginning (=> dump initial state)
3119    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
3120    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
3121      (need info on NUMBER_OF_PTRACERS)
3122    o missing PTRACERS headers in some routines
3123    o default tamc.h in pkg/autodiff supposed to crash
3124      to ensure proper customization
3125    
3126    checkpoint52a_post
3127    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
3128      - moved surfaceTendencyTice from pkg/seaice to main code
3129      - subroutine FREEZE_SURFACE now limits only surface temperature
3130        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
3131        => new output.txt for global_ocean.cs32x15 & global_with_exf
3132      - keep the old version of FREEZE for backward compatibility;
3133        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
3134      - corresponding modifs for TAF directives
3135    o added surface flux output variables to TIMEAVE_STATVARS
3136    o time-averaged output for pkg/ptracers
3137    o fix problem with ECCO-related divided adjoint
3138      snapshot file was missing some ad-variables,
3139      but no warning issued by TAF
3140    
3141    checkpoint52a_pre
3142    o some bug fixes for #undef REAL4_IS_SLOW
3143    
3144    checkpoint52 = ecco_c52_e35
3145    o after testing adjoints of checkpoint51u_post
3146    
3147    checkpoint51u_post
3148    o this is the post-merge tag of the ecco-branch
3149      (needs another clean checkout and re-testing)
3150    o various natl_box_adjoint configs and results
3151      but no input fields
3152    o obcs adjoint not yet merged!
3153    o adding ECCO global 1x1 and 2x2 degree configs
3154    o updated/extended some store directives for seaice
3155    o pkg/ecco now containes ecco-specific part of cost function
3156    o top level routines the_main_loop, forward_step
3157      supersede those in model/src/
3158      previous input data.cost now in data.ecco
3159      (new namelist ecco_cost_nml)
3160    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3161    
3162    checkpoint51t_post
3163    o this is the pre-merge tag of the ecco-branch
3164    
3165    checkpoint51s_post
3166    o cleanup: removed various obsolete #define-s
3167    o pkg/grdchk
3168      - renamed 'ph-grd 3' to 'grad-res'
3169      - merged from ecco-branch
3170        (remaining bug fixes for obcs gradient checks)
3171      - additional high-precision output for testreport
3172        (grep for 'precision_grdchk_result')
3173    
3174    checkpoint51r_post
3175    o cleaned up or removed CPP_OPTIONS.h files
3176    o updated results for some of the tests to reflect the new
3177      optfiles (-ieee: -O0 instead of -O3)
3178    
3179    checkpoint51q_post
3180    o cd_code:
3181      - moved cd_scheme.F -> cd_code_scheme.F
3182      - separate read_checkpoint from cd_code_ini_vars.F
3183      - separated cd_code part from write_checkpoint
3184      - updated AD_SOURCE, generated .flow
3185      - added CD_CODE_VARS.h to the_main_loop
3186      - Moving cd_code specific store dir.s to pkg/cd_code
3187    o ctrl package totally restructured
3188      - pack/unpack now optional and decoupled from
3189        xx_/adxx_ I/O
3190      - ctrl_pack/unpack cleaned
3191        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3192      - confined inclusion of AD_CONFIG.h to where necessary.
3193    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3194    
3195    checkpoint51p_post
3196    o create initial cd_code package
3197      - WARNING: the initialization of fields within packages
3198        is broken because INI_FIELDS (where READ_CHECKPOINT is
3199        called) is called *before* PACKAGES_INIT_VARIABLES.
3200        This seems to be backwards since
3201        1) its important to initially zero the entire field including
3202           the "halo" region
3203        2) zeroing needs to be done *before* reading pickup info
3204           and the pickup call might or might not happen in any
3205           particular run
3206      - this needs an overhaul for R2
3207    o cleanup verification/*/code/GMREDI_OPTIONS.h
3208    o cleanup testreport
3209    
3210    checkpoint51o_post
3211    o bringing AD-related verif's up to date with genmake2
3212      - carbon/
3213      - global_ocean.90x40x15/
3214      - hs.94.1x64x5/
3215      - (front_relax/ )
3216    o (more) consistent directory structure for AD-related verif.'s
3217    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3218    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3219    o bug fix in find_alpha.F for MDJWF:
3220      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3221        change rho -> rho-rhoConst
3222      - replace call find_rho to find_rhonum
3223    o initialisation of rFlx extended to full array (required by TAF)
3224      and shifted to thermodynamics
3225    o removed PTRACERS.h in ptracers routine
3226    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3227    o Correcting initialisations for fVerU, fVerV.
3228    o helping TAF to recognize dependency on kUp for
3229      fVerU, fVerV
3230    o Replacing delZ by delR in pkg/ctrl/
3231    checkpoint51o_pre
3232    
3233    o undid all of cp51 pending some cleanups and discussion
3234    o added the [#include "AD_CONFIG.h"] statement to all files that need
3235       it for adjoint/tl #defines
3236     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3237     o removed tools/genmake since it no longer works
3238    
3239    checkpoint51n_post
3240    o modifications to make FREEZE flux visible to pkg/kpp
3241      - moved surfaceTendencyTice from pkg/seaice to main code
3242      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3243      - subroutine FREEZE now limits only surface temperature
3244        (this means new output.txt for global_ocean.90x40x15,
3245         global_ocean.cs32x15, and global_with_exf)
3246    o added surface flux output variables to TIMEAVE_STATVARS
3247    
3248    checkpoint51n_pre
3249    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3250    o added [#include "AD_CONFIG.h"] to all files that use the following
3251      defines:
3252      - ALLOW_ADJOINT_RUN
3253      - ALLOW_TANGENTLINEAR_RUN
3254      - ALLOW_ECCO_OPTIMIZATION
3255    
3256    checkpoint51m_post
3257    o incorporating changes to get TAMC/TAF working in genmake2
3258      - added new TAMC/TAF targets to the Makefile
3259      - various cleanups related to package handling
3260      - these changes should have no impact on the forward model
3261    
3262    checkpoint51l_post
3263    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3264     - faster algorithm for cal_addtime.F
3265     - higher precision arithmetic, where needed
3266     - pkg/exf *startdate variables changed from calendar date to
3267       model integration time
3268    
3269    checkpoint51l_pre
3270    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3271    o enable to apply restoring on S & T only in a latitude band.
3272    o update output (external_forcing_surf modif. change truncation errors)
3273       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3274    
3275    checkpoint51k_post
3276    o change default to: useNHMTerms=.FALSE.
3277     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3278       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3279     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3280        exp1, ideal_2D_oce
3281     - change data file of oceanic exp (leave the results unchanged for now)
3282       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3283    o set gravitySign automatically according to the vertical coordinate used
3284      (and change sign: back to "logical" value: +1 when R increases downward)
3285    o added an include barrier to the default CPP_OPTIONS.h and
3286      removed the #include "PACKAGES_CONFIG.h" from it
3287    o fix a bug in mom_fluxform (from chk51j_post)
3288    
3289    checkpoint51j_post
3290    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3291    o adjusted some flow directives (dynamics, thermodynamics)
3292    o added cubed-sphere case to test cost function
3293    o heckpoint_lev?_directives.h now include
3294      pkg-specific directives, whenever those are enabled.
3295    o Moving pkg-specific flow directives to corresponding pkg
3296      Moving pkg-specific differentiation list to corresponding pkg
3297      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3298      ---> conventions are
3299           - pkg_ad.flow
3300           - pkg_ad_diff.list
3301           - pkg_ad_check_lev?_dir.h
3302    
3303    checkpoint51i_post
3304    o merge of the branch-genmake2
3305      - knowingly breaks the older genmake
3306      - automatic generation of all ALLOW_${PKG_NAME} defines
3307      - new testreport supersedes older testscript
3308    o large number of package inclusion and header cleanups
3309    checkpoint51i_pre
3310    
3311    o new output for adjoin of global ocean vector invariant
3312    o fix for checkpoint of thermodynamic seaice and bulk_force
3313    o Steph gchem various cleanups
3314    
3315    checkpoint 51h_pre
3316    o fixed some single quotes
3317    o modify gchem pkg to be more versatile
3318    o modifications to clean up dic pkg
3319    o add pkg/cfc
3320    
3321    checkpoint51g_post
3322    o provide links for ARPACK and ADM*TLM
3323    o start removing verification/vero/
3324    o update AD-related stuff
3325      (in particular some IF-statements in model/src/ routines)
3326    o adding to verification/global_ocean.90x40x15/ adjoint of
3327      vector invariant setup
3328    
3329    checkpoint51f_post
3330    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3331    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3332      of tracer Green's fucntions for ocean inversion project.
3333    
3334    checkpoint51f_pre
3335    o Added on-the-fly spatial interpolation capability
3336        "USE_EXF_INTERPOLATION" to pkg/exf.
3337      - This is a temporary Cartesian-grid hack until
3338        the super-duper ESMF coupler becomes available.
3339      - See verification/global_with_exf/README for usage example.
3340      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3341        flags and modified pkg/seaice accordingly.
3342    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3343        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3344        non-local transport term.
3345    
3346    checkpoint51e_post
3347    o pkg/mom_vecinv:
3348      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3349      - add time-ave diagnostic of vorticity advection.
3350    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3351    o atmospheric geopotential: - include water vapor effect;
3352                                - use p^kappa in p* scaling.
3353    o land pkg: read initial state from files.
3354    o AIM : add stratospheric drag in the upper level
3355    
3356    checkpoint51d_post
3357    o change function ILNBLNK (=> last non-blank char.) to return zero
3358      (instead of the string length) when the string. char is empty
3359    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3360    o modif's to restore TAMC compatibility
3361      - avoid "_d" constructs in PARAMETER declarations
3362      - avoid interrupting lines by comment lines
3363    o Use cluster local disks for purely local I/O
3364      vs. globally visible disks needed for ctrl stuff
3365      (merged from ecco-branch)
3366      - new active_file_loc... and mdsio_..._loc routines
3367      - affected packages: autodiff, ctrl, grdchk, mdsio
3368    
3369    checkpoint51c_post
3370    o introducing integer flag debugLevel
3371      - debLevZero: suppress all output
3372      - debLevA: standard
3373      - debLevB: equivalent to current debugMode=.TRUE.
3374    o introducing pathname variable mdsioLocalDir for mdsio
3375      that can be specified at runtime
3376      (relevant for cluster I/O to local disk)
3377    `
3378  >>>checkpoint51b_post  >>>checkpoint51b_post
3379  adjoint of ptracers  adjoint of ptracers
3380  o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM  o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM

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