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revision 1.362 by mlosch, Fri Oct 1 16:15:29 2004 UTC revision 1.1160 by dfer, Wed Sep 23 20:27:30 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/thsice:
8     -add specific parameter for salt restoring in slab mixed-layer
9       (by default equal to the temperature restoring)
10    
11    checkpoint61v
12    o pkg/kpp:
13     -add double diffusive contributions as a hack, turned off by default
14      for now, and the code can be excluded with a CPP-flag
15      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
16     -add a verification experiments to "vermix" to test this code
17    o pkg/mom_common:
18      Move computation of length scales to mom_init_fixed.F (avoid recomputation
19      at each time-steps*levels).
20    o pkg/layers:
21      Created a new package for computing volume fluxes in temperature or
22      [not yet implemented] density layers, e.g. for calculating residual
23      overturning circulations.
24    o pkg/diagnostics:
25      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
26    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
27    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
28      To avoid mixing type (RS/RL) of input/output array argument,
29      replace single mixed-type array with a pair from each type (RS/RL).
30    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
31      is now implemented for all pkgs (previously only done for the main pickup)
32    
33    checkpoint61u
34    o pkg/obcs:
35      - change OB?eta from _RS to _RL and put them into a separate commen block
36      - add code to read OB?eta from a file via obcs_prescribe_read: the code
37        compiles and does not destroy any other experiments, the data is read
38        properly, but the code is not tested in actual applications
39    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
40      create a meaningful unit attribute for the time coordinate variable
41    o pkg/ebm: add plenty of missing "_d 0" ;
42       update results of experiment global_ocean_ebm (fwd + adjoint tests)
43      Notes: several pieces of code only works for (very) specific set up
44       (domain size, lat range, etc ...); should be documented & stop if one
45       of those assumptions is not meet.
46    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
47       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
48          and offline_exf_seaice (seaicetd + adjoint).
49    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
50       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
51        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
52    o few changes to pass when compiling with strick checking of arguments
53       across S/R (allow to find few bugs in S/R calls).
54    o pkg/seaice:
55     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
56       2d-fields, for slightly better performance
57    
58    checkpoint61t
59    o pkg/seaice:
60     - remove unused variables in seaice_evp
61     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
62    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
63       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
64       each processor opens a different file (a fix from Matt).
65    o cg2d:
66       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
67       this reduces number of EXCH calls by 2 when using exch2.
68       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
69       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
70    o pkg/thsice:
71       add code for Near Infra-Red albedo (from Jeff)
72       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
73    o ini_model_io:
74       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
75       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
76       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
77    
78    checkpoint61s
79    o pkg/exch2 (exch2_rxN_cube*):
80       remove last BARRIER (no need to synchronise after getting data from shared
81       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
82    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
83      and generate new output (for the 2 tests) using default rotationPeriod.
84    o pkg/exch2:
85      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
86        (was already the case with AUTODIFF_EXCH2 defined)
87      - add bj in exch2 arrays and S/R.
88      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
89        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
90    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
91      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
92        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
93      - verification experiment natl_box.longstep
94    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
95      allow different versions of ifort (8 or 9) and different versions
96       of mpi (mpich or mpich2) to be used with the same optfile.
97      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
98       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
99    o pkg/seaice:
100      fix previous modif (3-level field removed) for old-pickup reading
101    
102    checkpoint61r
103    o pkg/seaice:
104     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
105      1. introduce fields for time step (N-1)
106      2. do not use levels 2 and 3 anymore (but keep them)
107      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
108         includes changes to pkg/thsice/thsice_get_velocity.F,
109         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
110         pkg/obcs/obcs_apply_uvice.F.
111     - completely remove code for leap-frog time stepping for second order
112       advection
113     - adjusted adjoint accordingly;
114       gradient checks have improved by an order of magnitude!
115    
116    checkpoint61q
117    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
118     - the boundary conditions along open boundaries are unclear, because the
119       associated masks are set to zero and are thus treated as closed when
120       applying the slip-boundary conditions.
121     - move initialisation of grid variables from seaice_init_varia to _fixed
122    o adding doc/diags_changes.txt
123    o model/src:
124      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
125       to avoid "_diags" naming if no relation to pkg/diagnostics.
126      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
127       file and only call PLOT_FIELD_XYZ if debugMode=T.
128      remove few PLOT_FIELD_XY calls outside initialisation.
129      remove few unnecessary BARRIER.
130    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
131      of salt_plume package in Southern Ocean
132    o pkg/thsice:
133     - fix hOceMxL in overlap (needed for sea-ice advection);
134       update output of experiment global_ocean.cs32x15.icedyn.
135    o pkg/seaice:
136     - make the (placeholder-)tracer IceAge a little more meaningful
137      by avoiding ridging of age due to convergent ice flow
138     - add diagnostics for surface temperature, atmospheric and oceanic
139       heat flux, and atmospheric and oceanic ice growth
140    
141    checkpoint61p
142    o eesupp (global_max & global_sum):
143     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
144     - remove starting & endding barrier (no longer needed)
145    o pkg/mdsio, writelocal:
146       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
147       (remove the STOP): uses shared buffer IO to store data from all threads
148       and then let master-thread write nThreads tiles.
149    o pkg/mdsio (read/write field):
150     - tiled IO done in 1 piece (all levels at a time);
151     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
152     - multi-threaded: allow to read/write local (non-shared) array
153       (was already working with singleCpuIO ; now works also without);
154       => no longer needs barrier call after reading a file (added inside
155       mds_read/write field).
156     - move barrier calls outside gather/scatter_2d to mds_read/write_field
157    o pkg/obcs/exf
158      - exf_getffieldrec.F: add a few ". _d 0" and
159                            add code to catch the case fldperiod = 0.  
160      - obcs_precribe_read.F: change if statements so that they match
161                              the variable type (_RL)
162      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
163        exf_iprec) as part of namelist EXF_NML_01
164    o pkg/mdsio:
165      - read/write tiled (local) files: read/write 1-level tile chunk at a time
166        (instead of segment of length sNx); expected to speed up tiled IO.
167    o pkg/exch2:
168      - take buffer copy from/to array out of S/R exch2_send/recv into new
169        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
170        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
171      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
172      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
173        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
174        including Topology header file (and common blocks).
175      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
176        remove 2nd exch call in exch2_s3d_rx (no longer needed).
177      - document S/R arg. list (+ update some comments)
178    o pkg/seaice:
179      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
180        temperature and humidity over sea ice based on climatological values.
181      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
182        of LSR (this change is expected to change the results slightly because now
183        it uses slightly difference moduli from the second last LSR solution, but
184        that is more consistent with the stress computations; this part of the code
185        is not tested in the verification experiments)
186      - fix diagnostics for flux of ice in case of B-grid
187      - turn strain rates eij and press into global fields within global
188        common block in SEAICE.h for more straighforward diagnostics
189      - fix diagnostics for principal stress components, press, zeta, eta
190        to give something meaning full
191    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
192      new output (all 4 tests) using default rotationPeriod.
193    o pkg KPP:
194      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
195      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
196        and normal grid from 1 to Nr)
197    o Fix computations of L4rdt in mom_calc_visc.F
198    o eesupp:
199      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
200      should be called before a "stop" if we know that all process are going
201      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
202    
203    checkpoint61o
204    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
205    o model/src/ini_curvilinear_grid.F:
206       compute angleSin/CosC when they are not read from a file
207    o pkg/seaice:
208       add pseudo time stepping for LSOR
209    o pkg/exch2:
210       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
211    o pkg/seaice:
212       Adding separate sea ice albedo, drag coefficients, and HO in Southern
213       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
214    o SingleCpuIO:
215       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
216    o pkg/seaice:
217       put exchanged variable in (local) common block for MPI+Multi-Threads
218       to work (necessary with exch1, and for now with exch2 too).
219    o verification: to get more experiments tested with mpi, mth and mpi+mth,
220      change tiling of:
221       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
222       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
223      update output of exp:
224       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
225       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
226      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
227                       (note: output.txt generated on faulks using only 1 tile)
228    o eesupp & mdsio (SingleCpuIO):
229     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
230       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
231       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
232     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
233     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
234       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
235    o pkg/exch2:
236     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
237       read parameter file "data.exch2" if it exists; otherwise try default regular
238       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
239     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
240       with new code (not to be used, just as a backup solution).
241     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
242       in utils/exch2/input.
243    
244    checkpoint61n
245    o eesupp & mdsio (SingleCpuIO):
246      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
247        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
248        receive real*4 array (instead of real*8) to read/write 32.bit files.
249        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
250         and remove new mapping S/R)
251    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
252      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
253        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
254        when using exch2. Add S/R to map global io-buffer to global model array.
255      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
256    
257    checkpoint61m
258    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
259      and add 3 other S/R for other types (R4,R8,RS).
260      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
261    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
262     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
263     - reduce number of macro definitions (keep only those which are used);
264       can always call directly the corrresponding S/R if needed.
265     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
266       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
267     Fixed wrong type of arg in:
268       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
269       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
270     To fix: global_sum of var in common block is wrong (multi-threaded) in:
271       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
272     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
273    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
274      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
275    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
276    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
277      edges are closed (zero depth); might happen with "blank tiles";
278      for now, disabled if using OBCS.
279    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
280      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
281    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
282      to reduce length of 1.D array print in STDOUT.
283    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
284      + use 48 tiles (16x8): this will allow to test "blank tiles".
285    o start to test MPI + multi-threaded (change testreport to skip tests
286      where number of tiles do not match).
287    o genmake2: add option "-omp" to turn on Open-MP ;
288      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
289    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
290      and keep the original tile numbering. Note: compatible with old
291      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
292    
293    checkpoint61l
294    o Overlaps had been forgotten in calculating ijk keys : fixed
295    o fix cyrus makedepend for gcc 4.4
296    o experiment fizhi-cs-aqualev20:
297      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
298      and generate new output. Note: new output is much closer to the old
299      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
300      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
301    o pkg/fizhi:
302     - change to avoid indices going deliberately over array-bounds
303     - remove unnecessary MPI stuff
304     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
305     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
306       does not go over array-bounds and therefore returns reliable output.
307     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
308       this S/R has 4 output arguments, which are used inside "get_alarm";
309       when it is called with the same variable "ndum" in place of several
310       output arguments, this produces weird side effect inside "get_alarm"
311      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
312       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
313       address) and produces error.
314    o tools/gemake2: (March 27-29 2009)
315      with option "-mpi": link *_mpi files from "MODS" dir (this is what
316      testreport does).
317    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
318    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
319       update lab_sea.lsr & lab_sea.salt_plume results
320    o pkg/seaice:
321      Major overhaul of the LSOR solver: change discretization from original
322      finite differences to finite volume. The old routine is still in the
323      file seaice_lsr.F and can be turned on with the CPP-flag
324      SEAICE_OLD_AND_BAD_DISCRETIZATION
325      Along with this change, the discretization of the strain rates is changed.
326      The same flag turns on the old discretization in seaice_calc_strainrates.F
327      All verification experiments with seaice are affected (except for
328      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
329      results by setting the above flag.
330      Further changes involve changes in defaults:
331      - ALLOW_FLOODING is defined and turned on by default
332      - SEAICEadvSnow = .true. is now the default
333      - SEAICEadvSalt = .true. is now the default
334      - SEAICEadvAge  = .true. is now the default
335      - SEAICE_clipVelocities  = .false. is now the default
336                                         (as per J. Zhang's recommendation)
337      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
338        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
339      - seaice_growth: replace computation of UG by a simple copy from wspeed
340    
341    checkpoint61k
342    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
343      seaice_lsr: fixed a few metric terms,
344                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
345                  add more debugging diagnostics
346      seaice_evp: removed superfluous many metric terms of FV discretization
347                  of stress divergence
348                  affects lab_sea, lab_sea.hb87
349      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
350                  of stress divergence for non-evp solver
351                  (this part is not tested anywhere)
352      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
353                  they were effectively only half slip
354                  affects lab_sea.hb87
355      updated all relevant verification experiments (except lab_sea//output_adm.txt
356        which was left over, but fails at level 7 & 6)
357    
358    checkpoint61j
359    o pkg/seaice: turn a few hard wired parameters into run time parameters
360    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
361      time in seconds as promised by the usints in seaice_monitor and exf_monitor
362    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
363      that are not cubed-sphere grids
364    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
365    o pkg/ctrl:
366      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
367    o non-hydrostatic (calc_gw.F):
368      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
369      update output of exp. global_ocean.cs32x15.viscA4
370    o remove backward compatibility for thetaMin,phiMin
371      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
372    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
373      interpolated wind field not only for curvilineargrid=.true., but also
374      for a rotated grid (rotateGrid=.true.)
375    o pkg/exf: add capability to bypass interpolation for runoff
376      by setting yet another CPP-flag
377    o eesupp/src, B-grid exchange:
378      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
379    o autodiff
380      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
381      allows to switch to single-prec common blocks;
382      corresponding switch occurs in tamc.h, integer isbyte
383      TAF store directivs "byte" and "kind" seem equivalent;
384      Most tamc.h have been updated correspondingly.
385    
386    checkpoint61i
387    o autodiff:
388      fix autodiff_sore/_restore indices for obcs
389      (spotted by I. Hoteit, M. Mazloff)
390    o pkg/autodiff, pkg/ctrl:
391      Add flag to reduce all tapelev I/O to single-prec.
392      In data.ctrl set
393        doSinglePrecTapelev = .TRUE.
394    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
395      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
396    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
397      real fresh water flux (not yet)
398    o pkg/mdsio & rw:
399     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
400     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
401    o pkg/flt:
402     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
403       init_fixed & ini_varia.
404     - clean-up & simplify linear interpolation S/R:
405       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
406     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
407     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
408     - add vert. coordinate & horiz. indices to output files.
409     - change vertical position in initial condition, from index to depth [m].
410     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
411       (easier to get to a curvilinear grid) ; delX,delY no longer used.
412    o pkg/ggl90: a few modifications:
413     - fix bottom boundary condition, and interpolation of KappaE
414       near top and bottom
415     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
416     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
417     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
418    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
419      (maintain temporary backward compatibility, until next checkpoint)
420    
421    checkpoint61h
422    o pkg/diagnostics with "periodic averaging diagnostics":
423      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
424    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
425    o pkg/obcs: fix loop ranges for balancing code
426    o pkg/flt:
427     - improve criteria for finding which tile owns a float.
428     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
429    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
430      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
431      with ocean biogeo)
432    o pkg/flt:
433     - do some cleaning and fix the restart ;
434     - add output.txt in flt_example/results to get this pkg tested.
435    o genmake2: add an EXTENDED_SRC option and flag.
436       for now, cannot be turned on on command line (only through genmake_local)
437    o pkg/mdsio: read/write vector:
438     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
439     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
440       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
441     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
442      (drop to 4 digits matching for grad). But this test does not look very
443      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
444    
445    checkpoint61g
446    o pkg/flt:
447      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
448       + make OPTIONS file more standard.
449      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
450      - fix _BYTESWAPIO CPP-Flag
451      - standard reading of file-parameter "data.flt"
452      - fix argument list of S/R FLT_RESTART
453      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
454    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
455    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
456      a still unfixed compiler/optimization bug
457    
458    checkpoint61f
459    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
460      update results of global_ocean.cs32x15.icedyn test.
461    o move getcon.F from model/src to pkg/fizhi.
462    o pkg/exf: add parameter for extrapolation of temp up to the surface
463       and option to prevent negative evap (in bulk_largeyeager04 only).
464    o Prather Advection scheme: fix tracer conservation for divergent flow
465      (e.g., when using NonLin Free-Surface).
466    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
467    o gmredi (Visbeck-variable-K):
468     - add more parameters to Visbeck-variable-K.
469     - use a 5 points average for dSigmaR in Visbeck-K calculation
470       (more "homogenous": same stencil and same weights as in dSigmaH)
471     - update output of ideal_2D_oce experiment.
472    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
473      (#undef REAL4_IS_SLOW)
474     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
475       coordinate variable
476     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
477       (surface forcing fields), removes some of the functionality
478     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
479     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
480       probably not all: copy _RS surface flux fields to RL field before
481       calling DIAGNOSTICS_FILL
482     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
483       real*4 (CALL EXCH_*_RS) versions.
484     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
485       (generate new output).
486    
487    checkpoint61e
488    o gmredi (Visbeck-variable-K):
489      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
490      - change computation of Visbeck-K where Slope > Smax :        
491        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
492        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
493    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
494      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
495    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
496    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
497      does not become too large (to avoid precision problems in implicit-diffusion
498      solver); update ideal_2D_oce output.
499    o pkg ggl90:
500      - in ggl90_cal.F: compute only one set of visc/diff, used to
501        step forward TKE/T/S/momentum
502      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
503        have Prandlt =1)
504    o gmredi (fm07):
505      - add lower limit on Transition layer thickness + lower limit on 1/lambda
506      - allow to set few more params from data.gmredi
507    o pkg ggl90:
508          - add missing sqrt(2) factor in computation of mixing length
509            scale in ggl90_calc.F
510            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
511    
512    checkpoint61d
513    o adjoint modifs
514      - adapt to new field rhoInSitu
515      - allow to revert from StoreDynVars2D, StoreDynVars3D
516        to individual fields
517        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
518    o store 3-D (in-situ) density in commom block (DYNVARS.h)
519     - save 1 rho computation.
520     - no longer modify T & S inland when using down_slope pkg.
521    o gad_som : allow to switch to SOM advection for T & S without corresponding
522      pickup files (using new S/R: MDS_CHECK4FILE).
523    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
524      (for useSingleCpuIO to work in multi-threaded)
525    o pkg/shelfice:
526     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
527       with SHELFICEtopoFile in data.shelfice
528     - move code for reading ice shelf topography and modifying hFacC into separate
529       subroutines of the shelfice package
530     - separate initialisation of "fixed" and "variable" variables
531     - kTopC is not (yet) replaced by kSurfC, although this is possible
532    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
533    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
534      and rename:
535      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
536      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
537    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
538    
539    checkpoint61c
540    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
541      to add mass source/sink of fluid in the interior (3-D generalisation
542      of oceanic real-fresh water flux).
543    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
544    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
545    o new pkg: down_slope
546      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
547      - presently, modify T & S inland (dwnslp_calc_rho.F).
548        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
549      - implementation for ocean in P-coords not tested.
550      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
551    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
552      (to facilitate conversion of oceanic pkg to p-coordinate).
553    o change FIND_RHO to FIND_RHO_2D :
554      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
555    o new pkg: cheapaml
556    
557    checkpoint61b
558    o exch2:
559      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
560      - no longer depend on the order sequence (N,S,E,W).
561      - 3rd exchange no longer needed (tested with 24 tiles).
562      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
563      - exch_UV_A-grid readily available (but not yet tested).
564      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
565      (both are no longer needed) in exch_uv: no effect in forward run; but
566       get truncation error differences with adjoint exch.
567    o exch2:
568     - change index-bounds storage (moved from target to local tile,
569       more intuitive this way) ; rename/remove some variables.
570     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
571    
572    checkpoint61a
573    o exch2/matlab-topology-generator:
574      fix bug in index bounds for N-S internal exchange (hard to tell if this
575      had any effect on the solution).
576    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
577      is exceeded
578    o testreport: modify syntax of awk, so that it works also with
579      awk, and not only with nawk and gawk
580    
581    checkpoint61
582    o autodiff
583      Change default for TAF usage by removing argument '-nonew_arg'
584      This changes TAF subroutine argument list (ordering of active var.)
585      Omission of this flag leads to incompatibility w.r.t. TAMC
586      To restore TAMC-compatibility, need following modifs:
587      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
588      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
589      Tested TAF version is 1.9.22
590      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
591    
592    checkpoint60
593    --->>> This is the last checkpoint for which generating the adjoint
594    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
595    --->>> by default.
596    --->>> Future checkpoints will ommit this flag by default.
597    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
598    o pkg/grdchk: Add gradient check to etan0 perturbations.
599    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
600    o pkg/autodiff: more flexibility in zeroadj.
601      model/src: modifying do_oceanic_phys.F accordingly.
602    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
603    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
604      special setup of gmredi for which the adjoint is stable
605      enough for parameter optimization.
606    o bridging the gap between eddy stress and GM.
607      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
608          along with a change in CPP option (now ALLOW_EDDYPSI).
609      -> when using GM w/ GM_AdvForm:
610          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
611          is applied either in the tracer Eq. or in momentum Eq.
612          depending on data.gmredi (intro. GM_InMomAsStress).
613      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
614      The key modifications are in model/src/taueddy_external_forcing.F
615      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
616    
617    checkpoint59r
618    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
619      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
620      fix option to read coriolis(@ cell-corner) from files with CS-grid.
621    o pkg/mnc: add some attributes to standard 1D-coordinate variables
622    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
623      mass points, when using mnc for output
624      - add runtime parameter (missing_value, missing_value_int) to override
625        default (which is the value of getcon('UNDEF'))
626    o pkg/mnc: prepare mnc for the actual use of missing values with the
627      diagnostics package: small fix in mnc_cw_readwrite.template and more
628      initialisation of never used fields
629      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
630      versions
631    o pkg/thsice/thsice_ini_vars.F added default initial values so that
632      thermodynamics sea ice solver does not blow up when some initial fields
633      are missing.
634    o move from external_forcing_surf.F to ini_forcing.F
635      the p-coord. hack consisting in using pLoad to set phi0surf ;
636      update output of tutorial_global_oce_in_p (affected @ truncation level).
637    o Freshen up a bit hs94.1x64x5, notably:
638      remove rotationPeriod and tRef=5*0. (adjoint only), and add
639      exactConserv=.TRUE.
640    o pkg/generic_advdiff:
641      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
642      applies to files where Temperature & Salinity 2nd Order moments are used.
643    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
644      this uses a dynamically allocated internal state data structure
645      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
646      and requires a fortran 90 compiler
647    
648    checkpoint59q
649    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
650       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
651    o Refresh tutorial_global_oce_biogeo, notably:
652      - change bathymetry (put back seamounts in ACC, use hFacs)
653      - change EOS (POLY3 --> JMD95Z)
654      - use Bryan-Lewis vertical diffusivity
655      - use multidimensional advection
656      - remove old virtual virtual in dic pkg, now done through ptracer pkg
657      - change a couple of parameters in dic pkg
658    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
659    o pkg/obcs: change default to OBCSfixTopo = .true.,
660      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
661      - replace "debugMode" with "debugLevel .GE. debLevB"
662    o implementation of TAF directives for gchem,cfc,dic
663    o remove "exp5" (replaced by tutorial_deep_convection).
664    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
665      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
666      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
667      --> changes results in exp4, seaice_obcs
668    o tutorial_deep_convection :
669      update the set-up and increase resolution and domain size ; start
670      from pseudo initial conditions = output at t=120mn in order to see
671      something happening when running testreport.
672    o pkg/seaice: add os7mp as an advection scheme
673                  add check for advection schemes
674                  add a flag for restoring T and S underneath sea ice
675    o pkg/my82: add netcdf-support and diagnostics
676    o thsice pkg:
677      - Now hsMax limits snow height by turning it into ice following
678        flooding scheme (and now conserving energy)
679      - Slight rewriting of the formula in thsice_calc_thick.F
680      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
681      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
682    
683    checkpoint59p
684    o gchem / dic / cfc :
685      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
686      - add new parameter files: "data.dic" & "data.cfc" ;
687      - various re-arrangement in initialisation & header file ;
688      - fix tutorial_global_oce_biogeo for multi-threaded test.
689    o pkg/dic: test for "pickup_dic" file when restarting ;
690      if no pickup-file, can restart with a re-initialised pH (same as it did
691      before) providing pickupStrictlyMatch is set to False.
692    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
693      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
694    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
695      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
696    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
697     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
698       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
699    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
700       scheme to use for vorticty-term ;
701     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
702       (with default selectVortScheme, return to original discretisation)
703     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
704    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
705    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
706      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
707      also fix diagnostics VISCAHW & VISCA4W.
708    
709    checkpoint59o
710    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
711    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
712      move a few statemens out the main loop into separate loops
713    o pkg/shelfice:
714      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
715        (kg/m^2/s), does not break tests, because in verification/isomip,
716        rhoConstFresh=rhoConst (by accident)
717      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
718      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
719        new file model/src/seawater.F, so that they are available for all pkgs.
720      - convert potential temperature into in-situ temperature. This changes the
721        isomip tests => update tests
722    o add a flag writePickupAtEnd (default=true) to be able to suppress
723      writing a pickup at the last timestep
724    o tools/mpack-1.6 :
725      - disable automake (not working) and autoconf (not needed).
726      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
727        also cleaner with much less compilation warnings.
728    o pkg/profiles:
729      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
730      (for "less than 32 characters name" compiler requirement)
731    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
732      conditions that have a different sampling frequency than S/T/U/V obcs
733    o pkg/diagnostics (stats-diags):
734      - fix global Min/Max in case 1 processor get only empty tiles
735    o genmake2: replace (4 times)
736         make genmake_tc_1.o >> genmake_warnings 2>&1
737      with
738         COMM="$CC $CFLAGS -c genmake_tc_1.c"
739         echo $COMM >> genmake_warnings
740         $COMM >> genmake_warnings 2>&1
741      to make genmake2 always see the value of CC as specified in the optfile.
742    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
743      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
744      - modify verification advect_cs test to test SOM-advection on CS-grid.
745    o pkg/ctrl:
746      - Rewrite of ctrl_map_ini_ecco.F,
747        introducing a generic routine (ctrl_map_ini_gen.F).
748      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
749    
750    checkpoint59n
751    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
752      number in dedicate array "hdiag":
753      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
754        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
755      - many small changes (integer format) for large number of diagnostics
756      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
757        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
758    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
759      usingSphericalGrid, this allows to define the rotated grid coordinates
760      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
761      geographical coordinates according to the inverse of the rotation defined
762      by the Euler angles, so that Coriolis parameter and online-interpolation by
763      exf works with the geographical coordinates on XC/YC/XG/YG.
764      Naturally, this feature does not work with all packages, so some
765      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
766      profiles), because there the coordinates are assumed to be regular
767      spherical grid coordinates.
768    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
769      - introduce isopycnal diffusion coefficient control.
770    o tools/adjoint_options:
771      - additional control vector components.
772    o pkg/mnc: have mnc create marginally meaning full coordinate variables
773      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
774    o pkg/mypackage:
775      - add example of read/write pickup for state-var ;
776      - add entry points to the main code for state-vars diags & write-pickup.
777    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
778      transitions for useExfYearlyFields
779      - add new subroutine that determines the file to read from for
780        use*YearlyFields = .TRUE. and .FALSE.
781      - add a verification experiment to global_with_exf that tests
782        useExfYearlyFields with USE_EXF_INTERPOLATION defined
783    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
784      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
785      subroutines (which could be generated from a template, because they are
786      almost identical), for now they are included in obcs_prescribe_read.F for
787      simplicity
788    o pkg/exf:
789      - add a little more diagnostic to exf_interp_read (in analogy to
790        mds_read_field, can be turned off with debugLevel < debugLevA=1)
791      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
792        ugly but fast by unrolling short inner loops, inserting a unroll=8
793        directive in routine lagran, and splitting a loop and making do while the
794        outermost loop (the latter requires the intoduction of index arrays)
795    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
796    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
797      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
798    o verification/seaice_obcs: updated for restart test and latest options
799    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
800      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
801      for now this is only available for the C-grid code and also within
802      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
803    
804    checkpoint59m
805    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
806      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
807    o gad_som : fix flux output (& diagnostics) to have same units as other  
808      advection scheme fluxes (was previously multiplied by deltaT).  
809    o added verification/seaice_obcs both to test seaice open boundaries
810      and to provide an example matlab scrpt for generating them
811    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
812    o pkg/salt_plume: clean up salt_plume_frac.F to
813      remove redundancy in PlumeMethod 1 and 4
814    o pkg/kpp: added saltplume diagnostics
815    o pkg/obcs and pkg/seaice:
816      - do not set uice and vice to zero when OB*icefile are unspecified
817      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
818      - moved seaice tracer obcs after call to seaice_growth
819    o pkg/salt_plume: added various options for salt plume depth
820      criterion and for vertical distribution of the salt
821    
822    checkpoint59l
823    o pkg/ptracers: new version of ptracers pickup:
824      read meta file and write only fields which are needed to restart.
825      ( same logic as main pickup file ; also using pickupStrictlyMatch )
826    o pkg/seaice:
827      - add timescale for melting due to warm mixed layer as a means of
828        setting SEAICE_availHeatFrac more conveniently
829      - add a CPP-flag/runtime parameter check for flooding algorithm
830      - reformulated availHeat in seaice_growth.F to be independent of AREA
831    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
832      unit changes
833    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
834    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
835      SX vector computer.
836    o pkg/seaice:
837      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
838        seaice forcing fields can now be read only through pkg/exf
839      - removed some unused halos
840    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
841    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
842      or U/VICE from U/VWIND before computing U/VSTRESS
843    
844    checkpoint59k
845    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
846      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
847    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
848      all experiments pass when compile with un-initialised var. checking option.
849    o added pkg/salt_plume
850    o script to test restart (for now, in MITgcm_contrib/jmc_script)
851    o pkg/seaice: new read/write pickup version.
852      read meta file and write only fields which are needed to restart.
853      ( same logic as main pickup file ; also using pickupStrictlyMatch )
854    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
855    o lab_sea.hb87: modify the domain & update output.hb87.txt :
856      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
857      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
858      process. Fixed here by closing the domain at the Northern boundary.
859    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
860    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
861      a set of consecutive levels in/from a 3-D array.
862    o pkg/ptracers:
863      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
864      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
865    
866    checkpoint59j
867    o in pkgs: dic, obcs, offline, rbcs:
868      standard way to compute coeff. for time interpolation between 2 time reccords
869      which retains full precision (& make results less dependent on compiler).
870      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
871    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
872      packages instead of reading ice cover and wind speed separately
873    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
874     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
875      to allow to compile customized code before the update)
876    o cleaning-up:
877      - fix CPP instruction syntax in pkg/obcs
878      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
879        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
880      - fix some threads issue in IO parts.
881    o pkg/dic:
882      - add tons of "_d 0" (--> much better testreports !)
883       and then update outputs of tutorial_global_oce_biogeo
884    o pkg/mom_fluxform:
885      add a special version of momentum advection intended to conserve momentum
886      next to a bathymetry step or a coastline edge. (default = off = #undef)
887    o new read/write pickup version:
888      - for now, only implemented for main (mdsio) pickup file.
889      - write out only what is needed to restart; merge pickup_nh , pickup_ph
890        and main pickup together.
891      - read meta file; read only what is needed to restart; stop if a field
892        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
893        if it make sense (even if the restart is not perfect).
894      - if no meta file, assume that pickup to read corresponds exactly to
895        a pickup that would currently be written.
896      - read pickup written in the old format (until checkpoint59i) if it
897        recognizes an old meta file (no field-list).
898      - add a meta file in exp. which starts from a pickup: 2 cases:
899        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
900         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
901        b) a meta file describing the content of the associated pickup file
902         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
903    o pkg/mdsio & pkg/rw:
904      - new routine to read a meta file ; new set of routine to read
905        Multiple-fields file (with meta file).
906    o added open boundary conditions capability for seaice
907        HSNOW, HSALT, UICE, and VICE
908    
909    checkpoint59i
910    o adjoint:
911      * fix multiDimAdvection adjoint
912        (partial recomputation problem by TAF for fVerT(:,:,kDown)
913        and comlev1 size definition (maxpass vs. max. number of tracers)
914      * verification/global_ocean.90x45x15 adjoint now tests
915        NLFS and multiDimAdvection using DST3 (=30)
916      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
917    o pkg/kpp: add "_d 0" to real constant (if missing);
918      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
919      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
920    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
921      for internal parameters related to restart process (formerly from PARAMS.h)
922      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
923    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
924      as argument. (only atm2d & obcs write_pickup have not yet been updated)
925    o pkg/monitor:
926      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
927      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
928      - account for deep Atmosphere factor and density factor (anelastic)
929    o added open boundary conditions capability for seaice HEFF and AREA
930    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
931      thermodynamics
932      - requires a little reorganization, which affects the testreport results
933        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
934        so that now the conservative form is tested
935      - add a few comments
936    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
937    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
938    o add new diagnostics to seaice: advective, diffusive fluxes (only for
939      multidim-advection, for scheme 2 they are not filled) and transports,
940      thermodynamic growth rates
941    o change units of EmPmR (inside the code, + within coupling interface)
942      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
943      Affects results @ truncation level (cg2d match) and update output of
944       experiments: lab_sea(6), global_ocean.90x40x15(10),
945      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
946      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
947      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
948      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
949    
950    checkpoint59h
951    o pkg/exf:
952      - improve vectorization by moving if-statement out of loops in
953        exf_mapfields, exf_radiation
954      - exf_bulkformulae.F: introduce 2D fields and vectorize code
955    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
956    o testreport:
957      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
958        monitor & update offline_exf_seaice exp. output.
959      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
960    o pkg/seaice:
961      - bug fix in the evp solver: boundary conditions were affected be
962        masking of zMax/zMin (changes results)
963      - minor bug fix in boundary conditions in seaice_calc_strainrates
964        (changes results for no_slip)
965      - seaice_lsr.F: make interpolation of eta dependent on boundaries
966      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
967      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
968        stress formulation and no-slip boundary conditions
969    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
970      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
971    o pkg/seaice: a first HSALT time stepping equation has been checked in
972    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
973      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
974      without requiring DO-IF statements
975    o pkg/thsice:
976      use continuous power-law function for partition of energy between lateral
977      melting/freezing and thinning/thickening ; old code using step function
978      still available with #undef THSICE_FRACEN_POWERLAW
979      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
980    o testreport: change AD testing : check against results/output_adm.txt
981      using same scripts as for forward test.
982    
983    checkpoint59g
984    o adjoint testing: in preparation for changing testreport:
985      - output format: cost and grad written on separated lines
986      - ad output results in directory "results" (instead of "results_ad")
987    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
988    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
989    o pkg/ecco: allow user defined cost function contributions
990    o testreport:
991      Allow to choose (per experiment) the list of tested output variables
992       and the main variable (used to issue a pass/FAIL ) ;
993      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
994      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
995      Also modify printing of summary:
996       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
997       b) echo the list of tested variables in the individual summary.txt of
998          each experiment.
999    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1000      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1001      (but still depend on the tile decompostion of the domain).
1002    o pkg/seaice: change a discretization detail to make the B-grid code
1003      "more symmetric". This change is likely to remove all "ridges/leads" that
1004      where quasi-aligned with the grid in B-grid solutions. It may also be
1005      the solution to the stress coupling issues with the B-grid.
1006    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1007      remove .cvsignore from input dir. (since testreport no longer run here).
1008    o pkg/thsice:
1009     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1010     - fix reshaping of sea-ice just after advection:
1011       melt all the ice only if ice-volume is too small.
1012     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1013       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1014     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1015    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1016      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1017    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1018      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1019      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1020      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1021      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1022      -> update output.txt
1023    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1024     this affects truncation error: -> update output.txt of exp:
1025      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1026      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1027    
1028    checkpoint59f
1029    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1030    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1031      a bounded range (in forward mode)
1032    o pkg/ecco, ctrl, autodiff and mom_common:
1033     internal parameter controls, completements of implementations
1034    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1035    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1036      (not seem any difference in testing results).
1037    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1038       at face corners.
1039    o pkg/generic_advdiff:
1040     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1041      loop range indices for computing vertical advection tendency
1042      and do the calculation in the interior only (no overlap) ;
1043      for now, only implemented for SOM advection (to save CPU time).
1044     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1045    o exch2 adjoint
1046      First set of changes:
1047      - add exch2 hand-written adjoint templates
1048      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1049        This will require cleanup in pkg/autodiff/*.F
1050        (changed routines currently kept separate in verif. code/)
1051      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1052        that used to hide exch2 or cubed-sphere specific code
1053        (commented via 'cph-exch2')
1054    o pkg/seaice
1055      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1056    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1057       output of global_ocean.cs32x15.thsice .
1058    
1059    checkpoint59e
1060    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1061      for B-grid vector (not yet tested) and C-grid vector (<- only used
1062      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1063    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1064      (#ifdef ALLOW_SALT_PLUME)
1065    o gather_2d/scatter_2d: removed halo regions
1066    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1067      scheme and the corresponding test case (under front_relax dir). For now,
1068      only available with Skew-flux form and not yet tested in realistic set-up.
1069      adjoint: store directives updated, but gradient checks deteriorated,
1070      so maybe GM/Redi adjoint is now broken.
1071    o seaice adjoint
1072      * add AREA, HEFF, HSNOW as control variable
1073        (should not change lab_sea results)
1074      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1075    o pkg/seaice:
1076      * added computation of saltFlux in seaice_growth;
1077        For time being, sea ice salinity is assumed constant
1078        contribution of snow flooding to freshening of sea ice is neglected.
1079        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1080        defaults to 0.0 in order to maintain backward compatibility.
1081        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1082      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1083      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1084        heat content used to melt or grow ice
1085      * commented out cap of HICE: it helps keep ice thinner
1086      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1087      * applied OBCS T/S mask to HEFFM sea ice mask
1088    
1089    checkpoint59d
1090    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1091     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1092     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1093    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1094     and change default value of parameter "GM_Small_Number";
1095     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1096       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1097       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1098    o pkg/ecco: cost function when applying pkg/smooth to controls
1099    o pkg/ctrl: add forcingPrecond run time parameter
1100    o pkg/seaice:
1101     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1102     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1103       changes verification/lab_sea
1104     - rearrange implicit part of u-equation in LSR solver to make it easier to
1105       read, understand, and debug. This causes changes at the truncation level.
1106     - fix (serious) bug in the boundary conditions (sign error in the implicit
1107       part) of the LSR solver. Changes all LSR results.
1108     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1109       is initilized with small values - does not change lab_sea results.
1110     - added HsnowFile initialization capability
1111    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1112     initialization of pkg/smooth and application to control vector
1113    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1114    o dependencies: pkg/profiles requires pkg/cal
1115    o pkg/profiles:
1116     - added option ALLOW_PROFILES_GENERICGRID
1117         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1118         that interpolation information (grid points and coefficients) is provided
1119         within the netcdf input files.
1120         -> sample matlab scripts can be found in MITgcm_contrib/gael
1121         that allow you to prepare netcdf input files.
1122     - also modified: cleaner include statements, cleaner error print statements,
1123       cleaner stops when error, and more tests of the netcdf input files consistency.
1124    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1125    o pkg/seaice:
1126     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1127       requires a new routine: seaice_diagnostics_fill.F
1128     - make sure that seaice does not move if not forced (pressure replacement
1129       method, Hibler and Ip, 1995), changes results
1130     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1131     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1132       It is turned off by default (=-1.), because it changes the results.
1133     - make it possible to read AREA from a file, too.
1134    
1135    checkpoint59c
1136    o add S/R and diagnostics for oceanic mixed-layer depth
1137    o move GMRedi call after all vertical mixing schemes (including KPP)
1138    o pkg/thsice:
1139     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1140      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1141    o pkg/obcs:
1142     - bug fix for balance code
1143    o pkg/seaice:
1144      - allow values of SEAICE_elasticParm > 1
1145      - add new parameter SEAICE_evpTauRelax as an alternative
1146        to SEAICE_elasticParm
1147      - make lsr boundary conditions free slip (by default), changes result
1148      - add code for no slip boundary conditions for lsr
1149      - set minimum of zeta to zero (and not 4e8) (changes results)
1150      - add a cap on AREA after advecting AREA if seaice_growth is not called
1151    o change calculation of Visbeck K:
1152      - no longer depend on tapering scheme; instead, compute slope (limited
1153        by GM_maxSlope). this is equivalent to what was comuted before with
1154        clipping or linear tappering.
1155      - fix vertical averaging (wrong by 1/2 level)
1156      - leave the old version (but will not be maintained) within
1157        #ifdef OLD_VISBECK_CALC / #endif
1158      - update output of exp. ideal_2D_oce
1159    o change error catch in calc_r_star to improve vectorization
1160    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1161      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1162    o adjoint:
1163      Re-organized adjoint checkpointing according to Matt Mazloff
1164      (but with modifs/completions/cleanups)
1165      Storing is now bundled into large arrays to optimized I/O
1166      (and second step in cleanup of the_main_loop)
1167    
1168    checkpoint59b
1169    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1170      - export/import (between ocean & coupler) fields needed for ocean DIC.
1171    o pkg/seaice:
1172      - get rid of three more exchanges seaice_calc_viscosities (required
1173        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1174      - bug fix in seaice_ocean_stress (update of lab_sea required)
1175      - reduce loop boundaries to necessary minimum also in seaice_evp
1176      - go back to the old way of computing deltaC/Z as the adjoint likes that
1177        better
1178    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1179      passive tracer to an Age Tracer) + update output.txt
1180    o pkg/exf:
1181      - implement A-grid / C-grid selection for wind-stress input files.
1182      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1183      for now, in exf_bulk_largeyeager04.F only :
1184      - change implementation for case where windspeed + 2. components wind-stress
1185        are read-in. AND use rhoConstFresh to convert evap.
1186    o pkg/seaice:
1187      - use correct EXCH_UV for wind-forcing (on A-grid).
1188      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1189        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1190    o pkg/exf:
1191      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1192      EXF_INTERPOLATION:
1193      - merge global_with_exf/code version of exf_interp_read.F
1194        to the main code ;
1195      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1196        reading the file ; Important: This options needs to be defined to recover
1197        previous code.
1198        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1199      - no longer loose real*8 precision along the way when using exf_iprec=64.
1200    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1201      - change discretisation of evp-solver in order to avoid another exchange
1202        (changes lab_sea) and clean up a little
1203      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1204        help the adjoint (this also changes the results slightly)
1205      - add a few "_d 0" where they had been missing in seaice_evp.F
1206      - cleaning up: remove unused seaice_calc_rhs.F
1207    o pkg/exf: some cleaning-up:
1208      - change various "constants" into runtime parameters
1209      - cleaned-up Large&Yeager04 routine which should eventually
1210        replace exf_bulkformulae.F (changed names of S/R and CPP)
1211        and merged various ALLOW_ATM_WIND options
1212     only used with thsice pkg (in thsice_get_exf.F):
1213      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1214        which are used when useStabilityFct_overIce=TRUE (= the default)
1215      - change default values of ice & snow emissivity and scale downward LW
1216        by ice & snow emissivity.
1217    o pkg/thsice:
1218     fix few little problems, in thsice_calc_thickn.F:
1219      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1220      - melt only laterally if hIce < hThinIce (as the comments say)
1221      and in thsice_extend.F:
1222      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1223      - start to form ice as soon as the minimum ice-volume is reachable.
1224     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1225      and cpl_aim+ocn
1226    o pkg/kpp
1227     - move computation of surface related input fields to KPP into a new
1228       subroutine kpp_forcing_surf.F
1229     - remove wrong (within bi,bj loops) EXCH calls.
1230     - little cleaning (add argument myThid in last position, cvs header ...)
1231     - for now, fix conservation problem by exchanging KPPviscAz (may not
1232       be the best fix)
1233    o pkg/seaice
1234     - check for inconsistent evp parameter/cpp-flag combination
1235     - remove leftover errIO flat for obsolete name list error handling
1236    o OpenAD
1237     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1238    
1239    checkpoint59a
1240    o pkg/seaice: some parameter clarifications and a little bit of clean up
1241    o pkg/thsice: rename run-time parameters:
1242       himin       -> hIceMin
1243       himin0      -> hThinIce
1244       hihig       -> hThickIce
1245       i0          -> i0swFrac
1246       transCoef   -> bMeltCoef
1247       frac_energy -> fracMelting
1248      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1249       with default values (for now) that do not change the results.
1250      remove old version of thsice vars advection in pkg/seaice.
1251    o in FFIELDS.h:
1252      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1253      - make pLoad & sIceLoad always available (but still only used if
1254         ATMOSPHERIC_LOADING is #define).
1255    o pkg/kpp: replaced _KPP_RL with _RL
1256    o bug fixes for vertical diffusivity computations when both KPP and
1257        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1258        are no longer updating the vertical diffusivity array
1259        (passed as argument) but are (re-) setting those arrays.
1260    o pkg/seaice: fix bug in evp solver, while doing that
1261      - change (improve?) discretization of stress computations for both
1262        cgrid-lsr and evp solver
1263      - add a new routine to compute strain rates
1264      - the above changes lab_sea results
1265      - add no slip conditions for evp solver (off by default), lsr-version
1266        may follow
1267      - fix exchange for shear at Z-points (does not change lab_sea)
1268      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1269        (to force the user to pick a time step since there is not "safe" way
1270        of choosing it)
1271      - add principal stress diagnostics
1272      - rearrange fields for evp a little to avoid having to call a: too many
1273        exchanges and b: exchanges for stress trensor components which we do
1274        not have.
1275      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1276        of evp, complete rewrite for lsr case (latter is does not yet work
1277        in all cases)
1278    o pkg/kpp: add code to have mixing in shelf ice caverns
1279      - add myThid to all kpp routines (long overdue)
1280    
1281    checkpoint59
1282    o pkg/exf:
1283      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1284        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1285      - move exf header files from lower_case.h to UPPER_CASE.h ;
1286        add missing cvs Header & Name
1287      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1288      - add namelist param. selectStressGridPosition, exf_monFreq
1289      - retire many _CLIM routines, and remove data.exf_clim
1290        + params moved to data.exf
1291        + climsst, climsss now handled by exf_set_gen, i.e.
1292          climss?period=0 refers to constant field,
1293          climss?period=-12 to monthly forcing
1294      - split up namelists in data.exf
1295    o pkg/seaice:
1296      - remove seaice_exch and seaice_exch_uv
1297      - remove superfluous exchange of theta
1298      - add myThid to seaice_budget_ocean/ice
1299      - add new interface for atmospheric wind forcing (C-grid only)
1300        + new routine
1301        + two new field (taux, tauy for stress over ice)
1302        + removed one global field (DAIRN) for C-grid case only
1303    o pkg/thsise
1304      - 2nd set of modifs for thsice adjoint in conjunction with exf
1305    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1306    
1307    checkpoint58y_post
1308    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1309      vertical diffusivity, similar to that in MOM4; turned on using
1310      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1311      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1312    o Added capability for 3D specification of background vertical diffusion
1313      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1314      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1315      "data" file that contains the 3D vertical diffusivity coefficients.
1316    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1317      - add code within pkg thsice to advect & diffuse sea-ice fields
1318      similar to (and will replace) what has been added in  seaice_advdiff.F,
1319      but: - conserving Mass, Heat & Salt.
1320           - better when using non-linear advection scheme (not yet fully tested)
1321           - can also be used in atmospheric set-up (for now, only the diffusion).
1322    
1323    checkpoint58x_post
1324    o IO option for global-file compact format:
1325      - add options when generating topology (utils/exch2/matlab-topology-generator)
1326      - add I/O capability (pkg/mdsio).
1327      - adapt utils/matlab/rdmds.m to read this format.
1328      for now long-line format not yet supported by pkg/mdsio (& exch2).
1329    o shelfice: add a few diagnostics
1330    
1331    checkpoint58w_post
1332    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1333      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1334      (and replace horiVertRatio in NH code).
1335      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1336                         and tutorial_plume_on_slope (sensitive to truncation)
1337    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1338      directly to drive seaice model (C-grid only)
1339    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1340     - reintroduce computation of wind from stress,
1341     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1342       mass points to avoid tau = 0
1343     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1344    o rdmnc.m: make it work with "global" files created with gluemnc
1345    o rdmnc.m : some improvements in dealing with singleton dimension
1346      (tested on all testreport mnc output files).
1347    o genmake2: disable pkg/profiles if netcdf test fails.
1348    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1349    o move call to cal_readparms up to make calendar parameters/variable available
1350      to all packages
1351    
1352    checkpoint58v_post
1353    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1354      useDynP_inEos_Zc tested.
1355    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1356    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1357      and portions thereof.  See read_cs.txt for description and examples.
1358    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1359      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1360      following the great-circle arc between those 2 points.
1361    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1362      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1363    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1364     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1365     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1366     - still needs work (not working with some options ; efficiency to improve)
1367       and serious testing.
1368     - use this scheme for temperature & salinity in 2 advection test exp.:
1369       advect_xy & advect_xz, respectively.
1370    
1371    checkpoint58u_post
1372    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1373    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1374    o testreport: add option "-skipdir" to skip some test.
1375    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1376      momentum calculation.
1377    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1378    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1379      remove checkpoint.F and the_correction_step.F (no longer used);
1380      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1381    o add option (linFSConserveTr) to correct for tracer source/sink due to
1382      Linear Free surface
1383    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1384    o pkg/thsice: fix reading mnc-pickups
1385    
1386    checkpoint58t_post
1387    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1388    o pkg/mdsio:
1389     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1390       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1391       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1392     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1393     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1394       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1395     - new S/R (to replace MDSWRITEMETA), which allows to write more
1396       informations (variable names, time ...) to meta files.
1397     - modify rdmds.m to give back the meta file content.
1398    o pkg/diagnostics: change vertical interpolation to be safer, and more
1399       flexible (define p-levels to interpolate to in data.diagnostics);
1400      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1401       diagnostic pointer.
1402    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1403    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1404    o fix multi-category seaice:
1405     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1406       SEAICE_MULTICATEGORY
1407     - fix short wave heat flux
1408    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1409       and allow to use EVP solver. Change forward lab_sea: test both EVP
1410       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1411    o Initial check-in of lab_sea adjoint
1412      (very similar to natl_box_adjoint/code_seaice)
1413      * used C-grid and EVP solver
1414      * used KPP, GM/Redi
1415      * uses inAdExact=.TRUE.
1416      * gradient checks fail for both ADM and TLM
1417        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1418        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1419        issue is related to forward mismatch between g77 an ifort
1420    o pkg/seaice: overhaul of thermodynamics
1421     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1422     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1423     - move a few global fields out of SEAICE.h into seaice_growth.F and
1424       make them 2D (FICE/QNETO/ ...)
1425     - remove FO (it is the same as QNETO)
1426     - introduce a few local fields to avoid modifying external fields such
1427       as atemp, etc.
1428    
1429    checkpoint58s_post
1430    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1431      changed exf_set_gen.F so that
1432        genperiod=0 means input file is one time-constant field and
1433        genperiod=-12 means input file contains 12 monthly means
1434    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1435      this affects truncation error ; generate new output file for exp. which
1436      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1437        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1438        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1439        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1440        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1441        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1442    o start implementation of deep-atmosphere and anelastic formulation
1443    o verification: remove 2nd copy of input files and use script "prepare_run"
1444      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1445    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1446    o profiles: fix for multithreaded case
1447    
1448    o diagnostics: rename few diags:
1449      s/'PRESSURE'/'RCENTER '/g
1450      s/'TICE    '/'oceFreez'/g
1451      s/'TAUX    '/'oceTAUX '/g
1452      s/'TAUY    '/'oceTAUY '/g
1453      s/'SWFLUX  '/'oceQsw  '/g
1454      s/DIFx/DFxE/g
1455      s/DIFy/DFyE/g
1456      and add few ocean-forcing diagnostics:
1457      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1458    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1459      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1460      as actual snow thickness.  It now refers everywhere to effective snow
1461      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1462    
1463    checkpoint58r_post
1464    o modifications to pkg/seaice/growth.F, which change results of
1465      lab_sea experiment: fixes pertain to melting snow over open water, to
1466      masking EVAP under sea ice, and to using the correct AREA variable for
1467      computations of EVAP, PRECIP, HSNOW, and GHEFF
1468    o add ability to read bathy, salt, and theta using MNC (off by def)
1469    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1470      both are turned off by default and do no change any results
1471    o seaice advection with pkg/thsice: a step toward the use of non-linear
1472      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1473    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1474      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1475      in natl_box (affects results @ truncation level: update output.txt)
1476    o multi-threading and IO:
1477      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1478      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1479        (needed to work with SingleCpuIO): tested in all verif. exp.
1480    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1481      affects the results (but none of the verification test uses this scheme).
1482    o Adding some pkg/diagnostics capability to pkg/seaice
1483      (will certainly be subject to changes)
1484    o ctrl: adding new control variables:
1485      lwflux, lwdown, evap, snowprecip, apressure, runoff
1486    
1487    checkpoint58q_post
1488    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1489      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1490      high_res_cube configuration by 4% on Columbia.
1491    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1492      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1493      dynamical allocation (seems to work in multi-threaded).
1494    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1495      single CPU io) so that TAF does not have to see EESUPPORT.h
1496    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1497    
1498    checkpoint58p_post
1499    o obcs: stop if obcs is used with useCDscheme = .true.
1500    o shelfice:
1501     - fix a sign error so that no slip at shelfice interface works
1502     - remove stop for combination non-hydrostatic code and shelfice. That does
1503       not mean, that the results are correct, but at least they are numerically
1504       stable
1505    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1506    o added adjoint exch routined for all exch*3d* routines
1507      and updated flow directives
1508    
1509    checkpoint58o_post
1510    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1511      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1512    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1513      and clean-up reading/writing of pickup files.
1514    o fix local version of read/write pickup (NH part) in rotating_tank/code
1515    o simplify EXCH interface:
1516     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1517     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1518    o added the regrid package
1519    o shelfice:
1520     - add a simple boundary layer scheme to reduce noise
1521     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1522    
1523    checkpoint58n_post
1524    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1525       local variable (not in common block).
1526    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1527      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1528      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1529        to work with SingleCpuIO.
1530    o add "_d 0" to real constant of pkg/cfc subroutines ;
1531       update exp. cfc_exemple & tutorial_cfc_offline output files.
1532    o multi-threading and IO:
1533      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1534        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1535      - barrier before and after reading.
1536      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1537      - avoid using MDS_WRITELOCAL for LAND pkg output.
1538      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1539        common-block variables ; Allows multi-threading with master-thread IO.
1540    o change default MAX_NO_THREADS from 32 to 4 ;
1541      and stop cleanly when MAX_NO_THREADS is too small.
1542    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1543    
1544    checkpoint58m_post
1545    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1546       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1547    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1548       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1549       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1550    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1551        add MITgcm_tutorials (= code + all the tutorials)
1552    o ecco, option to compute cost for total ssh (mean+anom)
1553    o consistent with addition of ptracer and ssh in pkg/profiles
1554    o profiles: adding ptracer and ssh
1555    o testreport: change multi-test output-file name
1556      (from output.txt.{name} to output.{name}.txt)
1557    o profiles: now ok for mutli-tiles case
1558    o seaice: add 4 parameters for different advection schemes for area,
1559      (effective) seaice thickness, enthalphy, and snow height. Their default
1560      is the standard parameter SEAICEadvScheme
1561    o calc_gw:
1562     - add cosFacU in zonal viscous flux (harmonic.visc.).
1563     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1564       of tutorial_plume_on_slope.
1565    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1566    o calc_gw: true flux-form, account for horizontal grid spacing.
1567      update rotating_tank results, but not plume_on_slope (affected at
1568      truncation level, 11 digits).
1569    
1570    checkpoint58l_post
1571    o calc_gw:
1572     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1573     - remove side-drag for now (need to fix it); update plume_on_slope results.
1574     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1575    o commit code to make SST/SSS weights spatially variable
1576      (based on either variable in-situ or variable initial T/S weights)
1577    o pkg/ecco:
1578      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1579        now based on horizontally varying weights wthetaLev, wsaltLev
1580      * cost_averagesflags now returns year indices in addition to day, month
1581      * sflux balance is performed on annual basis
1582        (sflxumm, sfluxmm2, bal_sfluxmm)
1583      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1584        including separate counting and multipliers
1585    o pkg/rbcs
1586      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1587    
1588    checkpoint58k_post
1589    o testreport:
1590     - always build in dir. "build" (if not there, mkdir build instead of building
1591       & running in input)
1592     - run in dir run (if it exists), in build otherwise.
1593     - call prepare_run (if input/prepare_run exists)
1594     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1595    o pkg/exf modifications to interpolation and rotation routines for more
1596       reasonable treatment of North Pole singularity: for tracers North Pole
1597       value is set to northernmost zonal-mean value, for zonal velocity it is
1598       set to zero, and for meridional velocity it is set to northernmost value.
1599    o pkg/exf/exf_check_range.F
1600     - add tile index to diagnostics and move stop statement to the very
1601       end of the routine.
1602    o pkg/diagnostics: (diagnostics_main_init.F)
1603      define title of isomorphic variables according to the current config.
1604    o pkg/thsice with pkg/seaice dynamics:
1605    - fix domain of computation (interior only, required for exf) and do exchanges
1606    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1607    o towards a standard way of dealing with multi-threading in MONITOR
1608      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1609    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1610       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1611    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1612    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1613    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1614       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1615    o tracer advection:
1616     - clean-up and simplify calc_common_factors.F
1617     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1618       advection subroutine (but still not used within DST advection S/R)
1619    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1620    
1621    checkpoint58j_post
1622    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1623      from file (collects calls previously in FORWARD_STEP)
1624    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1625    o adjoint store dir. adjusted accordingly
1626    o genmake2
1627      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1628    
1629    checkpoint58i_post
1630    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1631      on wind stress (SEAICEstressFactor defaults to 1.)
1632    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1633      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1634    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1635      on CS-grid: no longer loosing mass.
1636    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1637    o pkg/ggl90: fix sloppy output and fix a bug
1638    o pkg/seaice: added SEAICEuseEVPpickup parameter
1639      - Set to false in order to start EVP solver with
1640        non-EVP pickup files when using SEAICEuseEVP
1641      - fix sign error in diffusion in seaice_calc_rhs
1642    
1643    checkpoint58h_post
1644    * Modifications for bottom topography control
1645      o replace hFacC by _hFacC at various places
1646      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1647      o add non-self-adjoint cg2d_nsa
1648      o update autodiff support routines
1649      o re-initialise hfac after ctrl_depth_ini
1650      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1651    * Adding verification for 5x5 box (4-layer) bottom topography control
1652    
1653    checkpoint58g_post
1654    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1655       used for mean seasonal cycle, mean diurnal cycle); add an example
1656       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1657    o pkg/ggl90:
1658      - add parameter (minimum surface kinetic energy)
1659      - fix bug (avoiding division by zero)
1660    o couple pkg/thsice to pkg/seaice:
1661      - modify advection in seaice to accomodate new scalar fields to be advected
1662      - only muliDimAdection scheme work with seaice/thsice
1663      - mapping of thsice-variables to seaice-variables, back and forth
1664      - does not break the verification experiments, but does not give the
1665        desired results either
1666    o pkg/seaice
1667      - make (default) second order advection a bit less confusing?
1668    
1669    checkpoint58f_post
1670    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1671      to pkg/seaice):
1672      - new routines thsice_map_exf and thsice_get_exf provide the interface
1673      - add an additional formal parameter to thsice_solve4temp
1674    o pkg/exf:
1675      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1676      - correct Stefan-Boltzmann constant
1677      - new parameter for longwave surface emittance
1678      - separate some stuff from exf_bulkformulae into new routines  
1679        exf_radiation, exf_wind
1680      - add new parameters and constants: longwave emissivity for ocean, ice
1681        and snow, evaporation parameters over ice
1682      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1683        either wind from stress or stress from wind
1684    o pkg/thSIce:
1685    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1686    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1687       and THSICE_CALC_THICKN
1688    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1689    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1690      to make debugging easier.
1691    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1692    o pkg/bulk_force:
1693      - clean-up comments and parameters ;
1694      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1695    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1696      generate new output for test-experiment: aim.5l_cs.thSI
1697    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1698      testreport accordingly
1699    
1700    checkpoint58e_post
1701    o SEAICE_CGRID adjoint done
1702    o R_STAR adjoint implemented.
1703      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1704      * need to sort out init. of h0facc, etc.
1705    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1706      to be able to use it in pure forward.
1707    
1708    checkpoint58d_post
1709    o upgrade simple test-experiment to tutorial example:
1710     step.1: duplicate the experiment and (step.2) will remove the old copy.
1711      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1712      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1713      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1714      tutorial_global_oce_biogeo    <- copy of dic_example
1715      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1716      tutorial_plume_on_slope       <- copy of plume_on_slope
1717      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1718      tutorial_global_oce_optim     <- empty for now (David ?)
1719      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1720     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1721    o correct a sign problem in cost_scat.F
1722    o obcs and ptracers: fix boundary conditions for advections schemes
1723      with larger stencil
1724    o thsice adjoint: start
1725    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1726      completeness
1727    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1728      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1729    o ptracers adjoint:
1730      * avoid extensive recomputatations
1731      * fix missing re-init. of gptr (missed by TAF)
1732    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1733      me to turn off the excessive output to STDOUT that this package produces
1734    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1735      and add those terms in Vector-Invariant formulation.
1736    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1737      if the control period (xx_hfluxperiod etc) is 0
1738    o in profiles pkg, clean routines and fix details
1739    o in ecco pkg, reading ssh data:
1740      fix problem in case the model does not start at iter0=0
1741    o fix mnc-pickup/restart for ptracers
1742    o new package prifiles:
1743      code to compute profile-based cost by Gael Forget
1744      (modifs in ecco, ctrl, autodiff)
1745    o Benign bug fix in initialization (spotted by M. Mazloff) of
1746      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1747    
1748    checkpoint58c_post
1749    o adjoint: finish NLFS adjoint and provide reference output in
1750      verification/global_ocean.90x40x15/results_ad_nlfs
1751    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1752      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1753      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1754      with SEAICE_CGRID defined.
1755    o move calendarDumps from "data" to "data.cal" and clean-up the code
1756      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1757    o add useEXF & useCAL flags (for now, set in hard-coded way)
1758    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1759      (were missing in NH mode, and wrong in quasihydrostatic mode).
1760      waiting for Chris updated version of calc_gw to add those CALLs.
1761    o fix bug in quasihydrostatic S/R ;
1762      add a test for this option: global_ocean.90x40x15.qshyd
1763    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1764      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1765    o add on/off flag useOffLine for package OFFLINE
1766    o seaice:
1767      - modify advection so that it works also on the C-grid
1768      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1769        problem in multi-tile runs with C-grid
1770      - add flags for clipping ice velocities and/or masking solver forcing
1771      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1772        C-grid solver
1773      - added a few comments to seaice_diffusion.F
1774      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1775        are now exclusive)
1776      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1777        required re-ordering the code a little:
1778       + make DAIRN global variable (defined in SEAICE)
1779       + move computation of the viscosities eta and zeta into a new separate
1780         routine (because I need to recompute them in seaice_ocean_stress.F)
1781    
1782    checkpoint58b_post
1783    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1784      update output.txt of exp. aim.5l_cs.thSI
1785    o various mnc cleanups and improvements:
1786      + shrink lookup tables by factor of ~4
1787      + better error reporting when running out of lookup space
1788      + able to handle longer path/file names (up to 500 chars)
1789    o adjoint:
1790      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1791      - TBD: "hidden" mom_vecinv recomp. in dynamics
1792    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1793     (allow to differentiate between forcing components using new integer flags:
1794      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1795     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1796    o ecco
1797      - enable trend removal from SSH anomaly obs.
1798    o adjoint
1799      - a fix for PmEpR when #undef EXACT_CONSERV
1800      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1801      - try to fix "hidden" recomp. in forward_step for NLFS
1802        (NLFS seems broken sometimes after I checked it in)
1803    o seaice:
1804     - add c-grid version of the dynamic solver:
1805       + three new routines that are the c-grid substitute lsr, dynsolver
1806         and ostres
1807       + put a few fields that were local to dynsolver into global common
1808         blocks, so that I can move the computation of stresses etc into
1809         seaice_lsr (saves coding but may break the adjoint).
1810     - replace more hardwired parameters by runtime parameters
1811     - add ice masks that mask the rhs of the implicit solvers where there
1812       is no ice (commented out in seaice_dynsolver, because i am not sure
1813       if this works properly), eventually this should replace the clipping
1814       of ice velocities in seaice_dynsolver to +/-40cm/s.
1815    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1816      include it only where its needed
1817    o move balancing of fluxes before the call of external_forcing_surf
1818    o seaice:
1819      - correct units of turning angles (now they are really in degrees)
1820      - move computation of GWATX/Y out of main routine into dynsolver
1821      - initialize GWATX/Y in seaice_init
1822    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1823      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1824    o seaice: add runtime flags for turning angles (default to zero)
1825    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1826      and trend from exf forcing and ctrl control adjustments
1827    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1828      (since checkpoint57x_post)
1829    o change the default rotation period to 86164.s = the Earth rotation
1830    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1831      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1832    o seaice advection: add code for choosing between the default (2nd order
1833      central differences) and multiDim advection schemes provided by
1834      pkg/generic_advdiff
1835    o seaice:
1836      - removed all references to SEAICE_GRID.h fields from
1837        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1838        (cubed-sphere configuration will change a little)
1839      - grid computations in seaice_init are obsolete now.
1840      - cleaned up code a little so that is easier to read (hopefully).
1841      - added new (better?) discretizations of default advection and diffusion
1842        (turn on with SEAICEuseFluxForm)
1843      - replace 1 in 3d global fields by kSurface in growth.F
1844      
1845    checkpoint58a_post
1846    o seaice:
1847      - bug fix in advect.F
1848    o shelfice:
1849      - separate shelfice load anomaly from pload (breaks with time
1850        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1851        Its default is 0., but it may be computed more cleverly from (unknown)
1852        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1853        done offline. A good approximation of the pressure load anomaly is
1854        necessary to avoid large initial adjustment processes underneath
1855        deep-reaching shelfice.
1856      - small fix in ISOMIP shelfice_thermodynamics
1857      - add more sophisticated thermodynamics of Hellmer (1989), this is
1858        now the default
1859      - give a few constants more intuitive names
1860    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1861      if bulk formulae are used in long integration (especially EmPmR). Turn
1862      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1863      if balancePrintMean, the imbalance that is substracted is printed to
1864      STDOUT.
1865    o fix bug (typo) in obcs_apply_eta.F
1866    o add a new package shelfice which enables us to model the circulation
1867      underneath shelf-ice with draughts of hundreds of meters.
1868     - works
1869     - to do: + include improved thermodynamics
1870              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1871                instead of new field kTopC
1872              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1873                instead of new field R_shelfIce and new code in ini_depth.F
1874                and ini_mask_etc.F?
1875              + adjust vertical mixing schemes?
1876    o seaice pkg:
1877     - add a cpp-flag to include a simple formula for a salinity dependent
1878       freezing point of sea water at the surface
1879     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1880       meridional stresses are now different (and hopefully correct)
1881    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1882       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1883       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1884    o pkg/diagnostics: add options and parameters for regional-statistics
1885       diagnostics ; define regions by reading a region-mask from a file
1886       (might add other options later)
1887    o pkg/bulk_force:
1888     - add option and parameters to use AIM surface-flux formulae.
1889     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1890       others forcing fields (defined in PARM05, parameter file "data") are loaded
1891       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1892     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1893     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1894     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1895       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1896     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1897    
1898    checkpoint58
1899    o add "--embed-source" option to genmake2 which, when the supporting
1900      tools can be compiled (as determined by genmake2) will turn on the
1901      embed_files package which then embeds the entire MITgcm source code
1902      (*.[fFhc] + Makefile) used for the build within the executable
1903      - requested by CNH but off by default
1904      - adds a paltry <9MB to the mitgcmuv executable in most cases
1905      - only writes the output when useEMBEDSRC in eedata is true
1906    o clean up 3-dim. relaxation codes:
1907      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1908      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1909      * Thanks to Tom Haine for testing!
1910    
1911    checkpoint57z_post
1912    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1913      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1914    o fix the pickup behavior for obcs in combination with ptracers
1915    o fix a bug in ptracers_external_fields_load
1916    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1917      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1918    o transfered surface NH pressure to eta field (if exactConserv).
1919    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1920         and update lab_sea output.txt file.
1921    o completing 3-dim. relaxation code: additional term
1922         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1923      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1924      * At compile time, in "EXF_OPTIONS.h" set
1925          #define  ALLOW_CLIMTEMP_RELAXATION
1926          #define  ALLOW_CLIMSALT_RELAXATION
1927      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1928          tauThetaClimRelax3Dim = 15552000.0,
1929          tauSaltClimRelax3Dim  = 15552000.0,
1930      * 3 cases:
1931          1) Use a constant-in-time 3-dim. field
1932          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1933          3) Real-time relax. to time-evolving prescribed field
1934    o Adding Laplacian-type smoothness constraint on
1935      initial and boundary (forcing) controls (ic, bc)
1936      * enable at compile-time via
1937        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1938      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1939      * Absolute scale somewhat unclear so far
1940      * no area weighting was included since no other cost term does so far
1941    
1942    checkpoint57y_post
1943    First step for a NLFS adjoint
1944    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1945    o new init. routines for calc_r_star, calc_surf_dr
1946    o still need to deal with ini_masks_etc
1947    o testreport seemed happy
1948    checkpoint57y_pre
1949    
1950    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1951    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1952    o add new offset feature to offline pkg (plus minor cleanup)
1953    o cfc fixes for final year of integration
1954    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1955      be in GCHEM_OPTIONS).
1956    
1957    checkpoint57x_post
1958    o fix testreport Pb in multiple test experiment.
1959    o cleanup our namelist syntax in verification:
1960      - make it more F95 standards compliant (some work still needed)
1961      - allows the vast majority of our tests to work with gfortran
1962    o Non-Hydrostatic:
1963     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1964     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1965    o Allow to apply AB on T,S rather than on AB(gT,gS):
1966     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1967     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1968       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1969     - need a "clever" read_pickup to restart from the other AB formulation
1970    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1971    o remove some unused variables (reduces number of compiler warnings)
1972    o adjoint
1973      * Disable useVariableViscosity for adjoint for time being
1974        (there are a number of extensive recomputations)
1975      * Initialize certain variables needed for adjoint
1976    
1977    checkpoint57w_post
1978    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1979                 fix the singleCpuIO RS version of MDSWRITEFIELD
1980       and add a WARNING if using globalFiles=T with multi-processors.
1981    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1982      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1983    o tracer advection scheme:
1984      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1985       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1986       was not very convenient).
1987      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1988       (further tests needed for the implicit DST & Flux-Limiter schemes).
1989    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1990      and sRef for convenience, handy, when you want to initialize
1991      ptracers in a large domain with a constant non-zero value. Also,
1992      untangle ptracers_init.F a little.
1993    
1994    checkpoint57v_post
1995    o change dome exp. to use variable viscosity in side-drag terms.
1996    o remove all the files from the cfc_offline test since they are now
1997      incorporated into tutorial_cfc_offline which has been producing
1998      identical results for a few days of testing
1999    o add new parameter: sideDragFactor to enable half-slip-side BC
2000      and change side-drag S/R to use viscosity from mom_calc_visc
2001      (can switch back by setting sideDragFactor=0.); affects results at
2002      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2003       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2004    o vorticity & strain are now computed without masking, to account for
2005      no-slip-side BC in variable viscosity calculation ; mask is applied
2006      anyway later on, before computing advection/coriolis terms.
2007    o modify exp4 to test new obcs support for reading from external files
2008      and for passive tracers
2009    o fix behavior of ptracers_monitor when monitor output is written to a
2010      netcdf-file; still not independent of monitor.F (writes in the same
2011      file).
2012    o change default value of tRef (put a uniform, meaningful value for ocean
2013      & atmos) and initialize sRef (was missing, as Martin mentioned).
2014    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2015      to be proportional to enstrophy dissipation length.  Thus,
2016       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2017      This is now consistent with Smagorinsky and with the manual.
2018    
2019    checkpoint57u_post
2020    o OBCS and PTRACERS: add open boundary support for passive tracers
2021      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2022        OB-values from file; this is not different from the way theta and salinity
2023        are treated
2024      - however, Orlanski-radiation conditions are not supported, and the model
2025        will stop if you use pTracers and Orlanski at the same time.
2026      - beefed up the rountine obcs_external_fields_load: now only those open
2027        boundary values are overwritten with values from files for which there
2028        are really files, otherwise the OB-fields remain untouched. This makes
2029        it possible to use different OBs at different ends of the domain (as
2030        with EXF)
2031    o reduce number of exch calls in shap_filt (s2).
2032    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2033      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2034    
2035    checkpoint57t_post
2036    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2037    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2038      same truncation, independent of the face number: affects affects several
2039      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2040    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2041      note that biharmonic viscosity + no-slip was not tested in any experiment.
2042    o fix bug in non-linear free-surf side-drag ; generate new output for
2043      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2044    o make mnc honor the writeBinaryPrec flag for most kinds of output
2045    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2046    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2047      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2048    o add brackets in multi-terms sum to get same truncation, independent of
2049      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2050      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2051    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2052      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2053      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2054      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2055      Suggested values of viscosity parameters found in mom_calc_visc.
2056      Many new viscosity diagnostics available.
2057    
2058    checkpoint57s_post
2059    o Add clearing-house for viscosity calculations, mom_calc_visc and
2060      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2061      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2062      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2063      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2064      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2065      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2066      ViscAhStrain and viscAhTension are now retired.
2067    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2068    o In response to JMC's bug report, genmake2 now ignores any soft-links
2069      that it finds in the *current* directory when searching for files.
2070      Soft-links found in any other source directories will still work as
2071      they did before.
2072    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2073      a C routine to unlimit the stack size
2074    o mnc-ify pkg/aim snapshot vars
2075    o mnc-ify pkg/land as requested by Daniel
2076    o various changes to mnc including:
2077      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2078      - output can now be grouped so that all files within a group
2079          change the ITER portion of their names in lock-step together
2080      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2081          and works with both EXCH1 and EXCH2 (but needs more testing)
2082      - writing works for all verification test cases w/ g77 on Linux
2083    
2084    checkpoint57r_post
2085    o make MNC variable initialization happen earlier
2086    o add diagnostics for (almost) each term of the momentum Eq.
2087    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2088    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2089    o remove MINIMAL_TAVE_OUTPUT option ;
2090      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2091    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2092      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2093    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2094    o add time-dependent SST, SSS control
2095    o cost terms in ecco/ modularized (new cost_generic.F)
2096    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2097    o new infrastructure for seaice model vs. obs misfits in seaice/
2098      * driver from the_main_loop.F is seaice_cost_driver.F
2099      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2100      * gradient check in Exp. 6a of natl_box_adjoint/
2101    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2102      (see README file)
2103    
2104    checkpoint57q_post
2105    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2106    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2107      - bug was reported by Jean-Michel and Ian Fenty
2108    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2109      update exp. cpl_aim+ocn output.
2110    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2111      Needed for high-res. runs with large global files
2112      to be able to limit tapelev size
2113    o Changed some tests for adjoint:
2114      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2115      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2116      * global_ocean.90x40x15/ back to default 3-level checkpointing
2117    o Modifications to enable scripted COMMON to MODULE conversion
2118      * verification/OpenAD/code/ has necessary scripts and description;
2119      * converts, compiles and runs successfully;
2120    
2121    checkpoint57p_post
2122    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2123    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2124      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2125    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2126    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2127      (was already the case for dissipation with mom_vecinv,
2128       and also the case for grad.PhiHyd when staggered-timeStep)
2129      This will allow to put dissipation out-off the AB time-stepping.
2130     Unfortunately, affects truncation error. Update output of exp. that "fails"
2131      (cg2d matching number) and leave the others for later: front_relax(10),
2132      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2133      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2134    
2135    checkpoint57o_post
2136    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2137      (2) its ready to be documented during the 20050801 DocFest
2138    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2139      for ideal_2D_oce and lab_sea on linux_ia32_g77
2140    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2141      in global1x1_tot/code_seaice_adj to access indices 32, 33
2142      (worth another tag)
2143    
2144    checkpoint57n_post
2145    o adding precip control xx_precip 32
2146    o adding swflux control xx_swflux 33
2147    o Replacing 10 forcing penalty cost routines by 1 generic.
2148    o Implementing partitioning in time-mean and variable adjustment
2149      for atmos. state.
2150    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2151    o in natl_box_adjoint:
2152      * updated exp 1 to 10
2153        (but does not have time-mean vs. variable split results yet)
2154    o updated global1x1/*_seaice_adj/
2155      to incorporate latest changes
2156    o enable useSingleCpuIO for mdsio vector routines
2157      (applies in particular to tapelev I/O)
2158    o removed inefficient K-loop in all active_file*control*.F
2159    
2160    checkpoint57m_post
2161    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2162      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2163    o pkg/exch2: filling of face-corner halo regions is optional
2164      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2165    
2166    checkpoint57l_post
2167     tag before updating tutorials (pre-release-2)
2168    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2169       for output and interpolation of input fields onto model grid)
2170    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2171       Affects results of exp. rotating_tank ; update output.txt.
2172    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2173          and taking the square quantity and/or using a fraction-weight field.
2174    o fix aim_diagnostics_init.F mate numbers.
2175    o add mnc output capability to diagnostics/diagstat and update
2176      our cvsignore files for the ACSII output generated
2177    
2178    checkpoint57k_post
2179    o lab_sea now uses diagnostics package and provides a suite of
2180      new EXF diagnostics output.
2181    
2182    checkpoint57j_post
2183    o exf
2184      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2185        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2186        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2187      * extended diagnostics output
2188        - now includes all EXF variables
2189        - hs, hl moved to common block
2190        - separate S/R for diagnostics, called after ctrl vector is added
2191        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2192        - EXFqnet contains true Qnet (i.e. includes qsw)
2193      * updated verif. lab_sea, global_with_exf
2194      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2195        to ensure that diagnostics sees a true EXFqnet
2196    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2197    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2198      several times with different frequencies.
2199    o mnc-ify the thsice package as requested by Daniel Enderton
2200      - the monitor--MNC output needs work
2201      - many attributes need to be added (most are currently blank)
2202    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2203      - many attributes need to be added (most are currently blank)
2204    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2205    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2206    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2207      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2208         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2209    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2210     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2211    
2212    checkpoint57i_post
2213    o Diagnostics package was changed: diagnostic allocation is now deactivated
2214      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2215    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2216      add 1rst Order upwind vertical Shear.
2217    o add a quick fix for A/B checkpointing in OFFLINE mode
2218    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2219      end-run around the C/Fortran linking horror in eesup/src/timers.F
2220    o added pkg/runclock: allows user to terminate run based on wall clock
2221    o added non-hydrostatic scaling parameter: nh_am2
2222    o pkg/my82: futile attempt to make results compiler-independent by adding
2223      some "_d 0", etc. no effect.
2224    o for mnc output, fill the 'T' coordinate var with myTime and create a
2225      separate 'iter' variable for iteration count
2226    o pkg/diagnostics:
2227      add new capability: output of Global/Regional & per-level statistics ;
2228      tested against monitor output (including land & thSIce) on various exp.
2229    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2230    
2231    checkpoint57h_done
2232      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2233      data.diagnostics, data.gchem, data.ptracers) is done.
2234    
2235    o pkg/diagnostics: prepare for Global/Regional statistics.
2236      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2237    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2238      and rename it: DIFFERENT_MULTIPLE
2239    
2240    checkpoint57h_post
2241    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2242    o pkg/diagnostics: change output frequency, now in seconds (instead
2243      of Nb of iterations). This requires to change data.diagnostics.
2244    checkpoint57h_pre
2245    
2246    o in mnc, let the user create the output dir if both mnc_outdir_date
2247      and mnc_outdir_num are false
2248    o add fflags() to pkg/diagnostics which allows one to specify, on a
2249      per-file basis, the file precision [default behavior is unchanged]
2250    o added diagnostics to pkg/kpp, including computation of mixed layer
2251      depth based on a temperature/density criterion
2252    o updated verification/natl_box to test the new pkg/kpp diagnostics
2253    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2254    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2255    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2256      not mnc -- this mistake was found by JMC and is now corrected
2257    
2258    checkpoint57g_post
2259    o add Adams-Bashforth 3rd Order time stepping:
2260      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2261      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2262    checkpoint57g_pre
2263    
2264    o make lambda[Theta,Salt]ClimRelax spatially varying
2265      (default remains spatially uniform constant based on tau)
2266    o added new control variables
2267      * init. uVel, vVel, etanN
2268      * lambda[Theta,Salt]ClimRelax
2269    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2270      (suggested by G. Forget)
2271    
2272    checkpoint57f_post
2273    o add parameter "baseTime" = model base time = time at iteration zero
2274      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2275      account for baseTime shift
2276    o move Coriolis arrays from PARAMS.h to GRID.h
2277    checkpoint57f_pre
2278    
2279    o mnc-ifying the seaice package
2280    o introduced an alternative length scale calculation for use in the limiting
2281      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2282    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2283    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2284      as well as grad(vort3).  Made it compatible with both approximate form
2285      for the cubed sphere and full form of these gradients.  Added flag
2286      useFullLeith to select between approximate and full form.  
2287    o add "d0" in getcon.F to reduce differences between compilers/platforms
2288      update output.txt of exp. fizhi-gridalt-hs
2289    o change port_rand funtion to allow to set the seed.
2290    o fix obscure MNC bug involving conversion between reals and integers
2291      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2292        new version is now more standards-compliant
2293    o adjoint-related modifications
2294      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2295      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2296      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2297    
2298    checkpoint57e_post
2299    o Adding eddy stress controls a la Ferreira et al.
2300    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2301    
2302    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2303      update output.txt of exp. fizhi-gridalt-hs
2304    o add more "Z" dimensions and associated coordinate vars to MNC
2305    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2306    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2307      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2308      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2309      months and years.  Requires pkg/cal.
2310    o diagnostics: add pickup functionality
2311      - off by default for backwards compatibility
2312      - current version only uses MDSIO -- MNC will be added
2313    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2314    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2315    
2316    checkpoint57d_post
2317    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2318    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2319      output from the diagnostics package
2320    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2321    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2322      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2323    o add coordinate variables to the MNC output from the diagnostics package
2324    o change MNC-flags default value: true when useMNC=TRUE
2325    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2326      the ability (off by default) to read the grid information using MNC
2327    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2328    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2329    o do snap-shot diagnostics at the middle of the time-interval (instead of
2330      at the end).
2331    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2332      new test for AIM with thSIce + slab-ocean
2333    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2334    o move state variable diagnostics to the beginning of the time step ;
2335      (note: still needs some work specially for snap-shot diagnostics)
2336      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2337    
2338    checkpoint57c_post
2339    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2340    o generate new output.txt files on faulks with g77 & the new -ieee option
2341    checkpoint57c_pre
2342    
2343    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2344      update output.txt of exp. global_ocean.90x40x15
2345    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2346      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2347    o add saltFlux(+File) forcing capability with periodicExternalForcing
2348    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2349    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2350    o improvements for the MNC output from DIAGNOSTICS:
2351      - correct handling of the unlimitied dimension
2352      - all dims now have associated coordinate variables
2353      - variables located at U, V, and Corner ("Z") points are now written
2354        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2355        *all* data points are output
2356    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2357    o added pkg/seaice/seaice_monitor.F
2358    o mdsio_readfield.F can now read files visible only to master MPI process.
2359    o pkg/seaice: some test code for ice-modified ocean stress
2360    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2361      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2362      spurious negative numbers for precipitation and humidity.  Will cause
2363      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2364    o pkg/ctrl/
2365      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2366        May be enabled via doPackDiag
2367      *  introduce z-scaling of
2368         + gradient (doZscalePack) and
2369         + control (doZscaleUnpack)
2370    o pkg/mdsio/
2371      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2372      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2373    
2374    checkpoint57b_post
2375    o simplify options in diagnostics_fill arguments (remove weird combinations)
2376    o fix MNC coordinate variables so that they now contain per-face index
2377      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2378      general, EXCH2 grids are only aligned to a "local" coordinate system
2379    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2380    o Implement instantaneous output within pkg diagnostics:
2381      setting a negative frequency in data.diagnostics produces
2382     "snap-shot" output (as opposed to time-average if freq > 0)
2383    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2384      NOTE: change ptracer diagnostics name: use 2 characters to work with
2385            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2386    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2387      becomes the coordinate variable for the 'T' dimension
2388    o add CF-style coordinate variables to MNC
2389      - just a first cut:  numbers are meaningless on the cubesphere and
2390        missing along the T axis but otherwise it works!
2391    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2392    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2393    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2394      this is based directly on what the model compute, so that the content of
2395      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2396    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2397    o clean up build options files for SunOS, in particular
2398      - remove -traditional from xmakedepend
2399      - change -xarch=v9 to -xarch=native for f77
2400      - restore use of make (not gmake)
2401      - add CC=gcc if using g77
2402    o changes per discussion of AM, JMC, & EH3 today:
2403      - move redundant "grid" variables out of "state" -- in preparation of
2404        creating proper CF-style coordinate variables and in recognition
2405        that any/all grid variables can be easily copied (eg. w/NCO) from
2406        the grid files into any of the other NetCDF files
2407      - *always* output grid variables with MDSIO (this will eventually be
2408        changed)
2409      - output MNC grid file if useMNC is true
2410    o every instance of _END_MASTER() has been found and replaced with
2411      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2412      preprocessors
2413    o re-arrange diagnostics pkg initialisation:
2414     - allow each package to extend the available diagnostics list
2415     - add some checking and fix small problems (multi-threaded, ...)
2416     - new S/R diagnostics_fill (replace fill_diagnostics):
2417       look through the short list of active diag. (instead of the long list)
2418       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2419    
2420    checkpoint57a_post
2421    o this set of changes restores TAMC compatibility
2422      tested for global_ocean.90x40x15 adjoint on trough
2423      (what a pain)
2424    
2425    checkpoint57a_pre
2426    o some modifs in tools/build_options for sunos
2427    o call ctrl_pack for ctrl at end for optimcycle=0
2428    
2429    checkpoint57
2430    o add horizontal bi-harmonic viscosity for vertical velocity
2431      - new parameter viscA4W (defaults to viscA4)
2432      - affects only non-hydrostatic code
2433      - to be done: no-slip lateral boundary conditions
2434    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2435    o implement Implicit Vertical advection for pTracers
2436    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2437      (implemented also for implicit vertical diffusion & advection)
2438    o OBCS: extend application of tracer open boundary conditions
2439      to a strip beyond the boundary of width Olx/Oly
2440    o add call monitor to TAF set of required calls (flow directives)
2441      and include in natl_box_adjoint
2442    o untangle a few ifdefs related to cost, ctrl, autodiff
2443      untangel a few ALLOW_ECCO_OPTIMIZATION
2444    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2445      (theta2, salt2 in ecco_cost_weights)
2446    
2447    checkpoint56c_post
2448    o OBCS as control variables
2449      - update ctrl_ad_diff.list, obcs_ad_diff.list
2450      - remove balance of obcs controls from default
2451      - fix index bug nobcs in ctrl_init
2452      - fix dummy fields filen in ctrl_pack
2453      - add dummy weights for obcs
2454    o lsopt: comment out fort.94 output
2455    o optim:
2456      - remove unnecessary header files
2457      - adjusted namelists
2458      - add xerbla.F to Makefile
2459    o exf:
2460      - multiple modifications of exf_check_range
2461      - unit change in exf_init_runoff from [m/year] to [m/s]
2462    o mdsio:
2463      - i/o-vector change debugLevel from debLevA to debLevB
2464    
2465    checkpoint56b_post
2466    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2467      is called from DO_THE_MODEL_IO
2468      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2469      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2470      - clean up PTRACERS_WRITE_TIMEAVE a little
2471    o add another verification experiment that tests both the cfc-pkg and
2472      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2473      reactive tendencies treated inline with regular timestepping
2474    o testreport previously did a lousy job of comparing small numbers, so
2475      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2476      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2477      testreport.
2478    o ptracers_monitor: bug fix for MPI
2479    
2480    checkpoint56a_post
2481    o GCHEM: finish reorganizating the package
2482      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2483        (introduces another 3D-array for each passive tracer, but only if
2484        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2485        gchemTendency is not needed because the timestep is done separately)
2486      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2487      - GCHEM is now---more or less cleanly---separate from PTRACERS
2488      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2489        so clear to me how that should be done in a general way.
2490    o CFC: improve formatting of output in CFC_ATMOS
2491    o PTRACERS:
2492      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2493        that ALL experiments with ptracers enable can be checked. This makes
2494        GCHEM_MONITOR obsolete.
2495      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2496        monitorFreq
2497      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2498    o add PTRACERS (PTR0[1-5]) to testreport output
2499    o exf_check_range:
2500      * default changed to .TRUE.
2501      * will check values for niter0 if debLevA, every timestep if debLevB
2502      * STOP in exf_check_range if 'out of range'
2503      * range chosen generous to allow for potential extema
2504      TBD: a version with stricter range
2505           permitted range would be runtime parameters
2506    o GMredi:
2507      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2508      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2509      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2510    o GCHEM:
2511      - move call to GCHEM_FORCING_SEP, so that it is now called before
2512        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2513      - introduced a useGCHEM runtime flag and applied it everywhere.
2514      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2515        this flag is now only visible within GCHEM-pkg routines.
2516      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2517        be replaced by a 3D array that is computed before thermodynamics; for
2518        this, the tracer ID iTracer had to be included into the parameter list
2519        of ptracers_forcing
2520      - set up forward_step to call gchem_forcing, that will replace
2521        gchem_forcing_int in ptracers_forcing
2522      - cleaning up
2523    o small cleaning of exch2: remove files that are also in eesupp/src
2524    
2525    checkpoint56
2526    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2527    o mnc: cleanup "full" files--fixes out-of-memory problem
2528    o ECCO-GODAE
2529      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2530      * fully merged and updated from SIO code
2531        windstress sign change affects
2532        - exf_inscal_[u/v]stress
2533        - sign of xx_tau[u/v] adjustments
2534        - signs in cost_scat
2535      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2536      * natl_box_adjoint updated and compressed
2537      * 2-level checkpoint switch added
2538        (tested in EXP. 1 of natl_box_adjoint)
2539      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2540    o SVD
2541      * first complete, non-hacked version for SVD calculations
2542      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2543        performed via direct access files admtlm_vector.it????
2544        (via ctrl_[un]pack)
2545      * optimcycle is used for ARPACK iteration counter
2546        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2547      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2548        and add linear transforms where necessary
2549      * controls are initial/final SST, SSS (can be extended; need to check
2550        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2551    o mdsio: filename info to both stderr, stdout
2552    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2553      from sign change
2554    
2555    checkpoint55j_post
2556    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2557      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2558    o add consistent build directories and .cvsignore files to verification
2559    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2560    o make all subroutines 30 or less characters in length for certain older
2561      compilers to work (a thorough search only turns up two routines in
2562      pkg/ptracers)
2563    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2564      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2565    
2566    checkpoint55i_post
2567    o change arrays for total vertical diffusivity (2.D if explicit,
2568      3.D if implicit) ; each ptracer uses its own background value.
2569    o added mnc/NetCDF output capability to ocn_compon_interf
2570      - added bits to verification/cpl_aim+ocn so that it can run on
2571        ITRDA and other clusters without the mpirun "-wd" option
2572    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2573      configuration
2574    o give MNC the ability to create additional files rather than
2575      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2576      - the default is just less than 2GB which is a practical limit
2577        on many systems
2578    o Compute the non-local term using either KPP vertical diffusivity (=default)
2579       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2580    
2581    checkpoint55h_post
2582    o add verification test "vermix"
2583    o remove all the *_ioinc flags and replace with the single global
2584      outputTypesInclusive flag
2585    o allow to set a vertical profile of vertical diffusivity for T & S
2586    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2587    o useMNC moved from data.mnc to data.pkg
2588    
2589    checkpoint55g_post
2590    o Renaming carbon AD experiments to comply with testreport conventions
2591    o Updating adjoint of Held-Suarez hs94.1x64x5
2592    o Fixing directives for non-ECCO forward_step, after ECCO directives
2593      have been fixed to avoid recomp. of do_oceanic_phys
2594      Works well for global_ocean.90x40x15,
2595      but recomp. issue remains for carbon
2596    o Updating adjoint output for natl_box_adjoint after
2597      pkg/ecco has been modified (see taga c55d_post)
2598    
2599    checkpoint55f_post
2600    o rename to timeave_init_fixed
2601    
2602    checkpoint55e_post
2603    o some delicate re-shuffle of store directives to avoid one
2604      extra call of do_oceanic_physics
2605      affects ecco_the_main_loop.F, do_oceanic_physics.F
2606      checkpoint_lev1_directives.h
2607    o NB: this may break global_ocean adjoint temporarily,
2608      but it is clear how to fix it. Will do later, need this now.
2609    
2610    checkpoint55d_post
2611    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2612    o ecco_cost_weights is modified to 1x1 runs
2613    o modifs to allow observations to be read in as
2614      single file or yearly files
2615    o enable to read exf forcing fields as either
2616      single file or yearly files (flag useExfYearlyFields)
2617    checkpoint55d_pre
2618    
2619    o switch between 2-level and 3-level checkpointing
2620    o add ability of MNC to write local and "partial" (eg. 2D slices where
2621      the full 3D field is never actually stored) arrays to NetCDF files
2622      with the correct (that is, the complete multi-dimensional) set of
2623      array indicies
2624      - used in mom_vecinv() to write the diagFreq output
2625      - tested (demonstrated) in verification/aim.5l_cs
2626    o further mnc-ification
2627      - add verification/lab_sea to the list with mnc setups
2628      - fix undefined mnc v-names in cd_code
2629      - add kpp to mnc output (both snapshot and timeave)
2630  o non-hydrostatic code  o non-hydrostatic code
2631    - added horizontal viscosity parameter viscAhW for w, that replaces viscAh    - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2632      in calc_gw.F      in calc_gw.F
# Line 114  o add two new packages Line 2738  o add two new packages
2738    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2739    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2740      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2741      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2742  o add offline package  o add offline package
2743  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2744    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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