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revision 1.733 by jmc, Tue Oct 17 19:08:57 2006 UTC revision 1.1157 by dfer, Thu Sep 17 17:01:04 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/mom_common:
8      Move computation of length scales to mom_init_fixed.F (avoid recomputation
9      at each time-steps*levels).
10    o pkg/layers:
11      Created a new package for computing volume fluxes in temperature or
12      [not yet implemented] density layers, e.g. for calculating residual
13      overturning circulations.
14    o pkg/diagnostics:
15      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
16    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
17    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
18      To avoid mixing type (RS/RL) of input/output array argument,
19      replace single mixed-type array with a pair from each type (RS/RL).
20    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
21      is now implemented for all pkgs (previously only done for the main pickup)
22    
23    checkpoint61u
24    o pkg/obcs:
25      - change OB?eta from _RS to _RL and put them into a separate commen block
26      - add code to read OB?eta from a file via obcs_prescribe_read: the code
27        compiles and does not destroy any other experiments, the data is read
28        properly, but the code is not tested in actual applications
29    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
30      create a meaningful unit attribute for the time coordinate variable
31    o pkg/ebm: add plenty of missing "_d 0" ;
32       update results of experiment global_ocean_ebm (fwd + adjoint tests)
33      Notes: several pieces of code only works for (very) specific set up
34       (domain size, lat range, etc ...); should be documented & stop if one
35       of those assumptions is not meet.
36    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
37       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
38          and offline_exf_seaice (seaicetd + adjoint).
39    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
40       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
41        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
42    o few changes to pass when compiling with strick checking of arguments
43       across S/R (allow to find few bugs in S/R calls).
44    o pkg/seaice:
45     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
46       2d-fields, for slightly better performance
47    
48    checkpoint61t
49    o pkg/seaice:
50     - remove unused variables in seaice_evp
51     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
52    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
53       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
54       each processor opens a different file (a fix from Matt).
55    o cg2d:
56       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
57       this reduces number of EXCH calls by 2 when using exch2.
58       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
59       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
60    o pkg/thsice:
61       add code for Near Infra-Red albedo (from Jeff)
62       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
63    o ini_model_io:
64       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
65       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
66       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
67    
68    checkpoint61s
69    o pkg/exch2 (exch2_rxN_cube*):
70       remove last BARRIER (no need to synchronise after getting data from shared
71       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
72    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
73      and generate new output (for the 2 tests) using default rotationPeriod.
74    o pkg/exch2:
75      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
76        (was already the case with AUTODIFF_EXCH2 defined)
77      - add bj in exch2 arrays and S/R.
78      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
79        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
80    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
81      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
82        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
83      - verification experiment natl_box.longstep
84    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
85      allow different versions of ifort (8 or 9) and different versions
86       of mpi (mpich or mpich2) to be used with the same optfile.
87      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
88       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
89    o pkg/seaice:
90      fix previous modif (3-level field removed) for old-pickup reading
91    
92    checkpoint61r
93    o pkg/seaice:
94     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
95      1. introduce fields for time step (N-1)
96      2. do not use levels 2 and 3 anymore (but keep them)
97      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
98         includes changes to pkg/thsice/thsice_get_velocity.F,
99         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
100         pkg/obcs/obcs_apply_uvice.F.
101     - completely remove code for leap-frog time stepping for second order
102       advection
103     - adjusted adjoint accordingly;
104       gradient checks have improved by an order of magnitude!
105    
106    checkpoint61q
107    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
108     - the boundary conditions along open boundaries are unclear, because the
109       associated masks are set to zero and are thus treated as closed when
110       applying the slip-boundary conditions.
111     - move initialisation of grid variables from seaice_init_varia to _fixed
112    o adding doc/diags_changes.txt
113    o model/src:
114      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
115       to avoid "_diags" naming if no relation to pkg/diagnostics.
116      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
117       file and only call PLOT_FIELD_XYZ if debugMode=T.
118      remove few PLOT_FIELD_XY calls outside initialisation.
119      remove few unnecessary BARRIER.
120    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
121      of salt_plume package in Southern Ocean
122    o pkg/thsice:
123     - fix hOceMxL in overlap (needed for sea-ice advection);
124       update output of experiment global_ocean.cs32x15.icedyn.
125    o pkg/seaice:
126     - make the (placeholder-)tracer IceAge a little more meaningful
127      by avoiding ridging of age due to convergent ice flow
128     - add diagnostics for surface temperature, atmospheric and oceanic
129       heat flux, and atmospheric and oceanic ice growth
130    
131    checkpoint61p
132    o eesupp (global_max & global_sum):
133     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
134     - remove starting & endding barrier (no longer needed)
135    o pkg/mdsio, writelocal:
136       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
137       (remove the STOP): uses shared buffer IO to store data from all threads
138       and then let master-thread write nThreads tiles.
139    o pkg/mdsio (read/write field):
140     - tiled IO done in 1 piece (all levels at a time);
141     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
142     - multi-threaded: allow to read/write local (non-shared) array
143       (was already working with singleCpuIO ; now works also without);
144       => no longer needs barrier call after reading a file (added inside
145       mds_read/write field).
146     - move barrier calls outside gather/scatter_2d to mds_read/write_field
147    o pkg/obcs/exf
148      - exf_getffieldrec.F: add a few ". _d 0" and
149                            add code to catch the case fldperiod = 0.  
150      - obcs_precribe_read.F: change if statements so that they match
151                              the variable type (_RL)
152      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
153        exf_iprec) as part of namelist EXF_NML_01
154    o pkg/mdsio:
155      - read/write tiled (local) files: read/write 1-level tile chunk at a time
156        (instead of segment of length sNx); expected to speed up tiled IO.
157    o pkg/exch2:
158      - take buffer copy from/to array out of S/R exch2_send/recv into new
159        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
160        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
161      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
162      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
163        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
164        including Topology header file (and common blocks).
165      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
166        remove 2nd exch call in exch2_s3d_rx (no longer needed).
167      - document S/R arg. list (+ update some comments)
168    o pkg/seaice:
169      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
170        temperature and humidity over sea ice based on climatological values.
171      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
172        of LSR (this change is expected to change the results slightly because now
173        it uses slightly difference moduli from the second last LSR solution, but
174        that is more consistent with the stress computations; this part of the code
175        is not tested in the verification experiments)
176      - fix diagnostics for flux of ice in case of B-grid
177      - turn strain rates eij and press into global fields within global
178        common block in SEAICE.h for more straighforward diagnostics
179      - fix diagnostics for principal stress components, press, zeta, eta
180        to give something meaning full
181    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
182      new output (all 4 tests) using default rotationPeriod.
183    o pkg KPP:
184      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
185      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
186        and normal grid from 1 to Nr)
187    o Fix computations of L4rdt in mom_calc_visc.F
188    o eesupp:
189      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
190      should be called before a "stop" if we know that all process are going
191      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
192    
193    checkpoint61o
194    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
195    o model/src/ini_curvilinear_grid.F:
196       compute angleSin/CosC when they are not read from a file
197    o pkg/seaice:
198       add pseudo time stepping for LSOR
199    o pkg/exch2:
200       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
201    o pkg/seaice:
202       Adding separate sea ice albedo, drag coefficients, and HO in Southern
203       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
204    o SingleCpuIO:
205       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
206    o pkg/seaice:
207       put exchanged variable in (local) common block for MPI+Multi-Threads
208       to work (necessary with exch1, and for now with exch2 too).
209    o verification: to get more experiments tested with mpi, mth and mpi+mth,
210      change tiling of:
211       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
212       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
213      update output of exp:
214       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
215       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
216      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
217                       (note: output.txt generated on faulks using only 1 tile)
218    o eesupp & mdsio (SingleCpuIO):
219     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
220       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
221       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
222     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
223     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
224       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
225    o pkg/exch2:
226     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
227       read parameter file "data.exch2" if it exists; otherwise try default regular
228       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
229     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
230       with new code (not to be used, just as a backup solution).
231     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
232       in utils/exch2/input.
233    
234    checkpoint61n
235    o eesupp & mdsio (SingleCpuIO):
236      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
237        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
238        receive real*4 array (instead of real*8) to read/write 32.bit files.
239        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
240         and remove new mapping S/R)
241    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
242      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
243        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
244        when using exch2. Add S/R to map global io-buffer to global model array.
245      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
246    
247    checkpoint61m
248    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
249      and add 3 other S/R for other types (R4,R8,RS).
250      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
251    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
252     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
253     - reduce number of macro definitions (keep only those which are used);
254       can always call directly the corrresponding S/R if needed.
255     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
256       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
257     Fixed wrong type of arg in:
258       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
259       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
260     To fix: global_sum of var in common block is wrong (multi-threaded) in:
261       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
262     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
263    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
264      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
265    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
266    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
267      edges are closed (zero depth); might happen with "blank tiles";
268      for now, disabled if using OBCS.
269    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
270      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
271    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
272      to reduce length of 1.D array print in STDOUT.
273    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
274      + use 48 tiles (16x8): this will allow to test "blank tiles".
275    o start to test MPI + multi-threaded (change testreport to skip tests
276      where number of tiles do not match).
277    o genmake2: add option "-omp" to turn on Open-MP ;
278      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
279    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
280      and keep the original tile numbering. Note: compatible with old
281      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
282    
283    checkpoint61l
284    o Overlaps had been forgotten in calculating ijk keys : fixed
285    o fix cyrus makedepend for gcc 4.4
286    o experiment fizhi-cs-aqualev20:
287      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
288      and generate new output. Note: new output is much closer to the old
289      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
290      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
291    o pkg/fizhi:
292     - change to avoid indices going deliberately over array-bounds
293     - remove unnecessary MPI stuff
294     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
295     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
296       does not go over array-bounds and therefore returns reliable output.
297     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
298       this S/R has 4 output arguments, which are used inside "get_alarm";
299       when it is called with the same variable "ndum" in place of several
300       output arguments, this produces weird side effect inside "get_alarm"
301      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
302       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
303       address) and produces error.
304    o tools/gemake2: (March 27-29 2009)
305      with option "-mpi": link *_mpi files from "MODS" dir (this is what
306      testreport does).
307    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
308    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
309       update lab_sea.lsr & lab_sea.salt_plume results
310    o pkg/seaice:
311      Major overhaul of the LSOR solver: change discretization from original
312      finite differences to finite volume. The old routine is still in the
313      file seaice_lsr.F and can be turned on with the CPP-flag
314      SEAICE_OLD_AND_BAD_DISCRETIZATION
315      Along with this change, the discretization of the strain rates is changed.
316      The same flag turns on the old discretization in seaice_calc_strainrates.F
317      All verification experiments with seaice are affected (except for
318      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
319      results by setting the above flag.
320      Further changes involve changes in defaults:
321      - ALLOW_FLOODING is defined and turned on by default
322      - SEAICEadvSnow = .true. is now the default
323      - SEAICEadvSalt = .true. is now the default
324      - SEAICEadvAge  = .true. is now the default
325      - SEAICE_clipVelocities  = .false. is now the default
326                                         (as per J. Zhang's recommendation)
327      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
328        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
329      - seaice_growth: replace computation of UG by a simple copy from wspeed
330    
331    checkpoint61k
332    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
333      seaice_lsr: fixed a few metric terms,
334                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
335                  add more debugging diagnostics
336      seaice_evp: removed superfluous many metric terms of FV discretization
337                  of stress divergence
338                  affects lab_sea, lab_sea.hb87
339      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
340                  of stress divergence for non-evp solver
341                  (this part is not tested anywhere)
342      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
343                  they were effectively only half slip
344                  affects lab_sea.hb87
345      updated all relevant verification experiments (except lab_sea//output_adm.txt
346        which was left over, but fails at level 7 & 6)
347    
348    checkpoint61j
349    o pkg/seaice: turn a few hard wired parameters into run time parameters
350    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
351      time in seconds as promised by the usints in seaice_monitor and exf_monitor
352    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
353      that are not cubed-sphere grids
354    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
355    o pkg/ctrl:
356      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
357    o non-hydrostatic (calc_gw.F):
358      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
359      update output of exp. global_ocean.cs32x15.viscA4
360    o remove backward compatibility for thetaMin,phiMin
361      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
362    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
363      interpolated wind field not only for curvilineargrid=.true., but also
364      for a rotated grid (rotateGrid=.true.)
365    o pkg/exf: add capability to bypass interpolation for runoff
366      by setting yet another CPP-flag
367    o eesupp/src, B-grid exchange:
368      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
369    o autodiff
370      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
371      allows to switch to single-prec common blocks;
372      corresponding switch occurs in tamc.h, integer isbyte
373      TAF store directivs "byte" and "kind" seem equivalent;
374      Most tamc.h have been updated correspondingly.
375    
376    checkpoint61i
377    o autodiff:
378      fix autodiff_sore/_restore indices for obcs
379      (spotted by I. Hoteit, M. Mazloff)
380    o pkg/autodiff, pkg/ctrl:
381      Add flag to reduce all tapelev I/O to single-prec.
382      In data.ctrl set
383        doSinglePrecTapelev = .TRUE.
384    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
385      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
386    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
387      real fresh water flux (not yet)
388    o pkg/mdsio & rw:
389     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
390     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
391    o pkg/flt:
392     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
393       init_fixed & ini_varia.
394     - clean-up & simplify linear interpolation S/R:
395       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
396     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
397     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
398     - add vert. coordinate & horiz. indices to output files.
399     - change vertical position in initial condition, from index to depth [m].
400     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
401       (easier to get to a curvilinear grid) ; delX,delY no longer used.
402    o pkg/ggl90: a few modifications:
403     - fix bottom boundary condition, and interpolation of KappaE
404       near top and bottom
405     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
406     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
407     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
408    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
409      (maintain temporary backward compatibility, until next checkpoint)
410    
411    checkpoint61h
412    o pkg/diagnostics with "periodic averaging diagnostics":
413      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
414    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
415    o pkg/obcs: fix loop ranges for balancing code
416    o pkg/flt:
417     - improve criteria for finding which tile owns a float.
418     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
419    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
420      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
421      with ocean biogeo)
422    o pkg/flt:
423     - do some cleaning and fix the restart ;
424     - add output.txt in flt_example/results to get this pkg tested.
425    o genmake2: add an EXTENDED_SRC option and flag.
426       for now, cannot be turned on on command line (only through genmake_local)
427    o pkg/mdsio: read/write vector:
428     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
429     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
430       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
431     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
432      (drop to 4 digits matching for grad). But this test does not look very
433      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
434    
435    checkpoint61g
436    o pkg/flt:
437      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
438       + make OPTIONS file more standard.
439      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
440      - fix _BYTESWAPIO CPP-Flag
441      - standard reading of file-parameter "data.flt"
442      - fix argument list of S/R FLT_RESTART
443      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
444    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
445    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
446      a still unfixed compiler/optimization bug
447    
448    checkpoint61f
449    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
450      update results of global_ocean.cs32x15.icedyn test.
451    o move getcon.F from model/src to pkg/fizhi.
452    o pkg/exf: add parameter for extrapolation of temp up to the surface
453       and option to prevent negative evap (in bulk_largeyeager04 only).
454    o Prather Advection scheme: fix tracer conservation for divergent flow
455      (e.g., when using NonLin Free-Surface).
456    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
457    o gmredi (Visbeck-variable-K):
458     - add more parameters to Visbeck-variable-K.
459     - use a 5 points average for dSigmaR in Visbeck-K calculation
460       (more "homogenous": same stencil and same weights as in dSigmaH)
461     - update output of ideal_2D_oce experiment.
462    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
463      (#undef REAL4_IS_SLOW)
464     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
465       coordinate variable
466     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
467       (surface forcing fields), removes some of the functionality
468     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
469     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
470       probably not all: copy _RS surface flux fields to RL field before
471       calling DIAGNOSTICS_FILL
472     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
473       real*4 (CALL EXCH_*_RS) versions.
474     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
475       (generate new output).
476    
477    checkpoint61e
478    o gmredi (Visbeck-variable-K):
479      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
480      - change computation of Visbeck-K where Slope > Smax :        
481        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
482        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
483    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
484      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
485    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
486    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
487      does not become too large (to avoid precision problems in implicit-diffusion
488      solver); update ideal_2D_oce output.
489    o pkg ggl90:
490      - in ggl90_cal.F: compute only one set of visc/diff, used to
491        step forward TKE/T/S/momentum
492      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
493        have Prandlt =1)
494    o gmredi (fm07):
495      - add lower limit on Transition layer thickness + lower limit on 1/lambda
496      - allow to set few more params from data.gmredi
497    o pkg ggl90:
498          - add missing sqrt(2) factor in computation of mixing length
499            scale in ggl90_calc.F
500            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
501    
502    checkpoint61d
503    o adjoint modifs
504      - adapt to new field rhoInSitu
505      - allow to revert from StoreDynVars2D, StoreDynVars3D
506        to individual fields
507        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
508    o store 3-D (in-situ) density in commom block (DYNVARS.h)
509     - save 1 rho computation.
510     - no longer modify T & S inland when using down_slope pkg.
511    o gad_som : allow to switch to SOM advection for T & S without corresponding
512      pickup files (using new S/R: MDS_CHECK4FILE).
513    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
514      (for useSingleCpuIO to work in multi-threaded)
515    o pkg/shelfice:
516     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
517       with SHELFICEtopoFile in data.shelfice
518     - move code for reading ice shelf topography and modifying hFacC into separate
519       subroutines of the shelfice package
520     - separate initialisation of "fixed" and "variable" variables
521     - kTopC is not (yet) replaced by kSurfC, although this is possible
522    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
523    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
524      and rename:
525      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
526      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
527    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
528    
529    checkpoint61c
530    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
531      to add mass source/sink of fluid in the interior (3-D generalisation
532      of oceanic real-fresh water flux).
533    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
534    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
535    o new pkg: down_slope
536      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
537      - presently, modify T & S inland (dwnslp_calc_rho.F).
538        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
539      - implementation for ocean in P-coords not tested.
540      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
541    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
542      (to facilitate conversion of oceanic pkg to p-coordinate).
543    o change FIND_RHO to FIND_RHO_2D :
544      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
545    o new pkg: cheapaml
546    
547    checkpoint61b
548    o exch2:
549      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
550      - no longer depend on the order sequence (N,S,E,W).
551      - 3rd exchange no longer needed (tested with 24 tiles).
552      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
553      - exch_UV_A-grid readily available (but not yet tested).
554      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
555      (both are no longer needed) in exch_uv: no effect in forward run; but
556       get truncation error differences with adjoint exch.
557    o exch2:
558     - change index-bounds storage (moved from target to local tile,
559       more intuitive this way) ; rename/remove some variables.
560     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
561    
562    checkpoint61a
563    o exch2/matlab-topology-generator:
564      fix bug in index bounds for N-S internal exchange (hard to tell if this
565      had any effect on the solution).
566    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
567      is exceeded
568    o testreport: modify syntax of awk, so that it works also with
569      awk, and not only with nawk and gawk
570    
571    checkpoint61
572    o autodiff
573      Change default for TAF usage by removing argument '-nonew_arg'
574      This changes TAF subroutine argument list (ordering of active var.)
575      Omission of this flag leads to incompatibility w.r.t. TAMC
576      To restore TAMC-compatibility, need following modifs:
577      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
578      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
579      Tested TAF version is 1.9.22
580      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
581    
582    checkpoint60
583    --->>> This is the last checkpoint for which generating the adjoint
584    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
585    --->>> by default.
586    --->>> Future checkpoints will ommit this flag by default.
587    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
588    o pkg/grdchk: Add gradient check to etan0 perturbations.
589    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
590    o pkg/autodiff: more flexibility in zeroadj.
591      model/src: modifying do_oceanic_phys.F accordingly.
592    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
593    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
594      special setup of gmredi for which the adjoint is stable
595      enough for parameter optimization.
596    o bridging the gap between eddy stress and GM.
597      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
598          along with a change in CPP option (now ALLOW_EDDYPSI).
599      -> when using GM w/ GM_AdvForm:
600          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
601          is applied either in the tracer Eq. or in momentum Eq.
602          depending on data.gmredi (intro. GM_InMomAsStress).
603      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
604      The key modifications are in model/src/taueddy_external_forcing.F
605      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
606    
607    checkpoint59r
608    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
609      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
610      fix option to read coriolis(@ cell-corner) from files with CS-grid.
611    o pkg/mnc: add some attributes to standard 1D-coordinate variables
612    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
613      mass points, when using mnc for output
614      - add runtime parameter (missing_value, missing_value_int) to override
615        default (which is the value of getcon('UNDEF'))
616    o pkg/mnc: prepare mnc for the actual use of missing values with the
617      diagnostics package: small fix in mnc_cw_readwrite.template and more
618      initialisation of never used fields
619      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
620      versions
621    o pkg/thsice/thsice_ini_vars.F added default initial values so that
622      thermodynamics sea ice solver does not blow up when some initial fields
623      are missing.
624    o move from external_forcing_surf.F to ini_forcing.F
625      the p-coord. hack consisting in using pLoad to set phi0surf ;
626      update output of tutorial_global_oce_in_p (affected @ truncation level).
627    o Freshen up a bit hs94.1x64x5, notably:
628      remove rotationPeriod and tRef=5*0. (adjoint only), and add
629      exactConserv=.TRUE.
630    o pkg/generic_advdiff:
631      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
632      applies to files where Temperature & Salinity 2nd Order moments are used.
633    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
634      this uses a dynamically allocated internal state data structure
635      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
636      and requires a fortran 90 compiler
637    
638    checkpoint59q
639    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
640       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
641    o Refresh tutorial_global_oce_biogeo, notably:
642      - change bathymetry (put back seamounts in ACC, use hFacs)
643      - change EOS (POLY3 --> JMD95Z)
644      - use Bryan-Lewis vertical diffusivity
645      - use multidimensional advection
646      - remove old virtual virtual in dic pkg, now done through ptracer pkg
647      - change a couple of parameters in dic pkg
648    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
649    o pkg/obcs: change default to OBCSfixTopo = .true.,
650      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
651      - replace "debugMode" with "debugLevel .GE. debLevB"
652    o implementation of TAF directives for gchem,cfc,dic
653    o remove "exp5" (replaced by tutorial_deep_convection).
654    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
655      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
656      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
657      --> changes results in exp4, seaice_obcs
658    o tutorial_deep_convection :
659      update the set-up and increase resolution and domain size ; start
660      from pseudo initial conditions = output at t=120mn in order to see
661      something happening when running testreport.
662    o pkg/seaice: add os7mp as an advection scheme
663                  add check for advection schemes
664                  add a flag for restoring T and S underneath sea ice
665    o pkg/my82: add netcdf-support and diagnostics
666    o thsice pkg:
667      - Now hsMax limits snow height by turning it into ice following
668        flooding scheme (and now conserving energy)
669      - Slight rewriting of the formula in thsice_calc_thick.F
670      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
671      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
672    
673    checkpoint59p
674    o gchem / dic / cfc :
675      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
676      - add new parameter files: "data.dic" & "data.cfc" ;
677      - various re-arrangement in initialisation & header file ;
678      - fix tutorial_global_oce_biogeo for multi-threaded test.
679    o pkg/dic: test for "pickup_dic" file when restarting ;
680      if no pickup-file, can restart with a re-initialised pH (same as it did
681      before) providing pickupStrictlyMatch is set to False.
682    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
683      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
684    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
685      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
686    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
687     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
688       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
689    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
690       scheme to use for vorticty-term ;
691     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
692       (with default selectVortScheme, return to original discretisation)
693     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
694    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
695    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
696      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
697      also fix diagnostics VISCAHW & VISCA4W.
698    
699    checkpoint59o
700    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
701    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
702      move a few statemens out the main loop into separate loops
703    o pkg/shelfice:
704      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
705        (kg/m^2/s), does not break tests, because in verification/isomip,
706        rhoConstFresh=rhoConst (by accident)
707      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
708      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
709        new file model/src/seawater.F, so that they are available for all pkgs.
710      - convert potential temperature into in-situ temperature. This changes the
711        isomip tests => update tests
712    o add a flag writePickupAtEnd (default=true) to be able to suppress
713      writing a pickup at the last timestep
714    o tools/mpack-1.6 :
715      - disable automake (not working) and autoconf (not needed).
716      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
717        also cleaner with much less compilation warnings.
718    o pkg/profiles:
719      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
720      (for "less than 32 characters name" compiler requirement)
721    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
722      conditions that have a different sampling frequency than S/T/U/V obcs
723    o pkg/diagnostics (stats-diags):
724      - fix global Min/Max in case 1 processor get only empty tiles
725    o genmake2: replace (4 times)
726         make genmake_tc_1.o >> genmake_warnings 2>&1
727      with
728         COMM="$CC $CFLAGS -c genmake_tc_1.c"
729         echo $COMM >> genmake_warnings
730         $COMM >> genmake_warnings 2>&1
731      to make genmake2 always see the value of CC as specified in the optfile.
732    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
733      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
734      - modify verification advect_cs test to test SOM-advection on CS-grid.
735    o pkg/ctrl:
736      - Rewrite of ctrl_map_ini_ecco.F,
737        introducing a generic routine (ctrl_map_ini_gen.F).
738      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
739    
740    checkpoint59n
741    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
742      number in dedicate array "hdiag":
743      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
744        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
745      - many small changes (integer format) for large number of diagnostics
746      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
747        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
748    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
749      usingSphericalGrid, this allows to define the rotated grid coordinates
750      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
751      geographical coordinates according to the inverse of the rotation defined
752      by the Euler angles, so that Coriolis parameter and online-interpolation by
753      exf works with the geographical coordinates on XC/YC/XG/YG.
754      Naturally, this feature does not work with all packages, so some
755      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
756      profiles), because there the coordinates are assumed to be regular
757      spherical grid coordinates.
758    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
759      - introduce isopycnal diffusion coefficient control.
760    o tools/adjoint_options:
761      - additional control vector components.
762    o pkg/mnc: have mnc create marginally meaning full coordinate variables
763      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
764    o pkg/mypackage:
765      - add example of read/write pickup for state-var ;
766      - add entry points to the main code for state-vars diags & write-pickup.
767    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
768      transitions for useExfYearlyFields
769      - add new subroutine that determines the file to read from for
770        use*YearlyFields = .TRUE. and .FALSE.
771      - add a verification experiment to global_with_exf that tests
772        useExfYearlyFields with USE_EXF_INTERPOLATION defined
773    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
774      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
775      subroutines (which could be generated from a template, because they are
776      almost identical), for now they are included in obcs_prescribe_read.F for
777      simplicity
778    o pkg/exf:
779      - add a little more diagnostic to exf_interp_read (in analogy to
780        mds_read_field, can be turned off with debugLevel < debugLevA=1)
781      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
782        ugly but fast by unrolling short inner loops, inserting a unroll=8
783        directive in routine lagran, and splitting a loop and making do while the
784        outermost loop (the latter requires the intoduction of index arrays)
785    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
786    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
787      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
788    o verification/seaice_obcs: updated for restart test and latest options
789    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
790      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
791      for now this is only available for the C-grid code and also within
792      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
793    
794    checkpoint59m
795    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
796      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
797    o gad_som : fix flux output (& diagnostics) to have same units as other  
798      advection scheme fluxes (was previously multiplied by deltaT).  
799    o added verification/seaice_obcs both to test seaice open boundaries
800      and to provide an example matlab scrpt for generating them
801    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
802    o pkg/salt_plume: clean up salt_plume_frac.F to
803      remove redundancy in PlumeMethod 1 and 4
804    o pkg/kpp: added saltplume diagnostics
805    o pkg/obcs and pkg/seaice:
806      - do not set uice and vice to zero when OB*icefile are unspecified
807      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
808      - moved seaice tracer obcs after call to seaice_growth
809    o pkg/salt_plume: added various options for salt plume depth
810      criterion and for vertical distribution of the salt
811    
812    checkpoint59l
813    o pkg/ptracers: new version of ptracers pickup:
814      read meta file and write only fields which are needed to restart.
815      ( same logic as main pickup file ; also using pickupStrictlyMatch )
816    o pkg/seaice:
817      - add timescale for melting due to warm mixed layer as a means of
818        setting SEAICE_availHeatFrac more conveniently
819      - add a CPP-flag/runtime parameter check for flooding algorithm
820      - reformulated availHeat in seaice_growth.F to be independent of AREA
821    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
822      unit changes
823    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
824    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
825      SX vector computer.
826    o pkg/seaice:
827      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
828        seaice forcing fields can now be read only through pkg/exf
829      - removed some unused halos
830    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
831    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
832      or U/VICE from U/VWIND before computing U/VSTRESS
833    
834    checkpoint59k
835    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
836      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
837    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
838      all experiments pass when compile with un-initialised var. checking option.
839    o added pkg/salt_plume
840    o script to test restart (for now, in MITgcm_contrib/jmc_script)
841    o pkg/seaice: new read/write pickup version.
842      read meta file and write only fields which are needed to restart.
843      ( same logic as main pickup file ; also using pickupStrictlyMatch )
844    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
845    o lab_sea.hb87: modify the domain & update output.hb87.txt :
846      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
847      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
848      process. Fixed here by closing the domain at the Northern boundary.
849    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
850    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
851      a set of consecutive levels in/from a 3-D array.
852    o pkg/ptracers:
853      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
854      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
855    
856    checkpoint59j
857    o in pkgs: dic, obcs, offline, rbcs:
858      standard way to compute coeff. for time interpolation between 2 time reccords
859      which retains full precision (& make results less dependent on compiler).
860      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
861    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
862      packages instead of reading ice cover and wind speed separately
863    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
864     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
865      to allow to compile customized code before the update)
866    o cleaning-up:
867      - fix CPP instruction syntax in pkg/obcs
868      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
869        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
870      - fix some threads issue in IO parts.
871    o pkg/dic:
872      - add tons of "_d 0" (--> much better testreports !)
873       and then update outputs of tutorial_global_oce_biogeo
874    o pkg/mom_fluxform:
875      add a special version of momentum advection intended to conserve momentum
876      next to a bathymetry step or a coastline edge. (default = off = #undef)
877    o new read/write pickup version:
878      - for now, only implemented for main (mdsio) pickup file.
879      - write out only what is needed to restart; merge pickup_nh , pickup_ph
880        and main pickup together.
881      - read meta file; read only what is needed to restart; stop if a field
882        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
883        if it make sense (even if the restart is not perfect).
884      - if no meta file, assume that pickup to read corresponds exactly to
885        a pickup that would currently be written.
886      - read pickup written in the old format (until checkpoint59i) if it
887        recognizes an old meta file (no field-list).
888      - add a meta file in exp. which starts from a pickup: 2 cases:
889        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
890         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
891        b) a meta file describing the content of the associated pickup file
892         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
893    o pkg/mdsio & pkg/rw:
894      - new routine to read a meta file ; new set of routine to read
895        Multiple-fields file (with meta file).
896    o added open boundary conditions capability for seaice
897        HSNOW, HSALT, UICE, and VICE
898    
899    checkpoint59i
900    o adjoint:
901      * fix multiDimAdvection adjoint
902        (partial recomputation problem by TAF for fVerT(:,:,kDown)
903        and comlev1 size definition (maxpass vs. max. number of tracers)
904      * verification/global_ocean.90x45x15 adjoint now tests
905        NLFS and multiDimAdvection using DST3 (=30)
906      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
907    o pkg/kpp: add "_d 0" to real constant (if missing);
908      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
909      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
910    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
911      for internal parameters related to restart process (formerly from PARAMS.h)
912      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
913    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
914      as argument. (only atm2d & obcs write_pickup have not yet been updated)
915    o pkg/monitor:
916      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
917      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
918      - account for deep Atmosphere factor and density factor (anelastic)
919    o added open boundary conditions capability for seaice HEFF and AREA
920    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
921      thermodynamics
922      - requires a little reorganization, which affects the testreport results
923        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
924        so that now the conservative form is tested
925      - add a few comments
926    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
927    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
928    o add new diagnostics to seaice: advective, diffusive fluxes (only for
929      multidim-advection, for scheme 2 they are not filled) and transports,
930      thermodynamic growth rates
931    o change units of EmPmR (inside the code, + within coupling interface)
932      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
933      Affects results @ truncation level (cg2d match) and update output of
934       experiments: lab_sea(6), global_ocean.90x40x15(10),
935      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
936      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
937      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
938      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
939    
940    checkpoint59h
941    o pkg/exf:
942      - improve vectorization by moving if-statement out of loops in
943        exf_mapfields, exf_radiation
944      - exf_bulkformulae.F: introduce 2D fields and vectorize code
945    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
946    o testreport:
947      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
948        monitor & update offline_exf_seaice exp. output.
949      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
950    o pkg/seaice:
951      - bug fix in the evp solver: boundary conditions were affected be
952        masking of zMax/zMin (changes results)
953      - minor bug fix in boundary conditions in seaice_calc_strainrates
954        (changes results for no_slip)
955      - seaice_lsr.F: make interpolation of eta dependent on boundaries
956      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
957      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
958        stress formulation and no-slip boundary conditions
959    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
960      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
961    o pkg/seaice: a first HSALT time stepping equation has been checked in
962    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
963      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
964      without requiring DO-IF statements
965    o pkg/thsice:
966      use continuous power-law function for partition of energy between lateral
967      melting/freezing and thinning/thickening ; old code using step function
968      still available with #undef THSICE_FRACEN_POWERLAW
969      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
970    o testreport: change AD testing : check against results/output_adm.txt
971      using same scripts as for forward test.
972    
973    checkpoint59g
974    o adjoint testing: in preparation for changing testreport:
975      - output format: cost and grad written on separated lines
976      - ad output results in directory "results" (instead of "results_ad")
977    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
978    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
979    o pkg/ecco: allow user defined cost function contributions
980    o testreport:
981      Allow to choose (per experiment) the list of tested output variables
982       and the main variable (used to issue a pass/FAIL ) ;
983      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
984      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
985      Also modify printing of summary:
986       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
987       b) echo the list of tested variables in the individual summary.txt of
988          each experiment.
989    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
990      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
991      (but still depend on the tile decompostion of the domain).
992    o pkg/seaice: change a discretization detail to make the B-grid code
993      "more symmetric". This change is likely to remove all "ridges/leads" that
994      where quasi-aligned with the grid in B-grid solutions. It may also be
995      the solution to the stress coupling issues with the B-grid.
996    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
997      remove .cvsignore from input dir. (since testreport no longer run here).
998    o pkg/thsice:
999     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1000     - fix reshaping of sea-ice just after advection:
1001       melt all the ice only if ice-volume is too small.
1002     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1003       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1004     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1005    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1006      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1007    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1008      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1009      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1010      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1011      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1012      -> update output.txt
1013    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1014     this affects truncation error: -> update output.txt of exp:
1015      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1016      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1017    
1018    checkpoint59f
1019    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1020    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1021      a bounded range (in forward mode)
1022    o pkg/ecco, ctrl, autodiff and mom_common:
1023     internal parameter controls, completements of implementations
1024    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1025    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1026      (not seem any difference in testing results).
1027    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1028       at face corners.
1029    o pkg/generic_advdiff:
1030     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1031      loop range indices for computing vertical advection tendency
1032      and do the calculation in the interior only (no overlap) ;
1033      for now, only implemented for SOM advection (to save CPU time).
1034     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1035    o exch2 adjoint
1036      First set of changes:
1037      - add exch2 hand-written adjoint templates
1038      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1039        This will require cleanup in pkg/autodiff/*.F
1040        (changed routines currently kept separate in verif. code/)
1041      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1042        that used to hide exch2 or cubed-sphere specific code
1043        (commented via 'cph-exch2')
1044    o pkg/seaice
1045      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1046    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1047       output of global_ocean.cs32x15.thsice .
1048    
1049    checkpoint59e
1050    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1051      for B-grid vector (not yet tested) and C-grid vector (<- only used
1052      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1053    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1054      (#ifdef ALLOW_SALT_PLUME)
1055    o gather_2d/scatter_2d: removed halo regions
1056    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1057      scheme and the corresponding test case (under front_relax dir). For now,
1058      only available with Skew-flux form and not yet tested in realistic set-up.
1059      adjoint: store directives updated, but gradient checks deteriorated,
1060      so maybe GM/Redi adjoint is now broken.
1061    o seaice adjoint
1062      * add AREA, HEFF, HSNOW as control variable
1063        (should not change lab_sea results)
1064      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1065    o pkg/seaice:
1066      * added computation of saltFlux in seaice_growth;
1067        For time being, sea ice salinity is assumed constant
1068        contribution of snow flooding to freshening of sea ice is neglected.
1069        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1070        defaults to 0.0 in order to maintain backward compatibility.
1071        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1072      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1073      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1074        heat content used to melt or grow ice
1075      * commented out cap of HICE: it helps keep ice thinner
1076      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1077      * applied OBCS T/S mask to HEFFM sea ice mask
1078    
1079    checkpoint59d
1080    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1081     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1082     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1083    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1084     and change default value of parameter "GM_Small_Number";
1085     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1086       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1087       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1088    o pkg/ecco: cost function when applying pkg/smooth to controls
1089    o pkg/ctrl: add forcingPrecond run time parameter
1090    o pkg/seaice:
1091     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1092     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1093       changes verification/lab_sea
1094     - rearrange implicit part of u-equation in LSR solver to make it easier to
1095       read, understand, and debug. This causes changes at the truncation level.
1096     - fix (serious) bug in the boundary conditions (sign error in the implicit
1097       part) of the LSR solver. Changes all LSR results.
1098     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1099       is initilized with small values - does not change lab_sea results.
1100     - added HsnowFile initialization capability
1101    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1102     initialization of pkg/smooth and application to control vector
1103    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1104    o dependencies: pkg/profiles requires pkg/cal
1105    o pkg/profiles:
1106     - added option ALLOW_PROFILES_GENERICGRID
1107         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1108         that interpolation information (grid points and coefficients) is provided
1109         within the netcdf input files.
1110         -> sample matlab scripts can be found in MITgcm_contrib/gael
1111         that allow you to prepare netcdf input files.
1112     - also modified: cleaner include statements, cleaner error print statements,
1113       cleaner stops when error, and more tests of the netcdf input files consistency.
1114    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1115    o pkg/seaice:
1116     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1117       requires a new routine: seaice_diagnostics_fill.F
1118     - make sure that seaice does not move if not forced (pressure replacement
1119       method, Hibler and Ip, 1995), changes results
1120     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1121     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1122       It is turned off by default (=-1.), because it changes the results.
1123     - make it possible to read AREA from a file, too.
1124    
1125    checkpoint59c
1126    o add S/R and diagnostics for oceanic mixed-layer depth
1127    o move GMRedi call after all vertical mixing schemes (including KPP)
1128    o pkg/thsice:
1129     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1130      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1131    o pkg/obcs:
1132     - bug fix for balance code
1133    o pkg/seaice:
1134      - allow values of SEAICE_elasticParm > 1
1135      - add new parameter SEAICE_evpTauRelax as an alternative
1136        to SEAICE_elasticParm
1137      - make lsr boundary conditions free slip (by default), changes result
1138      - add code for no slip boundary conditions for lsr
1139      - set minimum of zeta to zero (and not 4e8) (changes results)
1140      - add a cap on AREA after advecting AREA if seaice_growth is not called
1141    o change calculation of Visbeck K:
1142      - no longer depend on tapering scheme; instead, compute slope (limited
1143        by GM_maxSlope). this is equivalent to what was comuted before with
1144        clipping or linear tappering.
1145      - fix vertical averaging (wrong by 1/2 level)
1146      - leave the old version (but will not be maintained) within
1147        #ifdef OLD_VISBECK_CALC / #endif
1148      - update output of exp. ideal_2D_oce
1149    o change error catch in calc_r_star to improve vectorization
1150    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1151      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1152    o adjoint:
1153      Re-organized adjoint checkpointing according to Matt Mazloff
1154      (but with modifs/completions/cleanups)
1155      Storing is now bundled into large arrays to optimized I/O
1156      (and second step in cleanup of the_main_loop)
1157    
1158    checkpoint59b
1159    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1160      - export/import (between ocean & coupler) fields needed for ocean DIC.
1161    o pkg/seaice:
1162      - get rid of three more exchanges seaice_calc_viscosities (required
1163        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1164      - bug fix in seaice_ocean_stress (update of lab_sea required)
1165      - reduce loop boundaries to necessary minimum also in seaice_evp
1166      - go back to the old way of computing deltaC/Z as the adjoint likes that
1167        better
1168    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1169      passive tracer to an Age Tracer) + update output.txt
1170    o pkg/exf:
1171      - implement A-grid / C-grid selection for wind-stress input files.
1172      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1173      for now, in exf_bulk_largeyeager04.F only :
1174      - change implementation for case where windspeed + 2. components wind-stress
1175        are read-in. AND use rhoConstFresh to convert evap.
1176    o pkg/seaice:
1177      - use correct EXCH_UV for wind-forcing (on A-grid).
1178      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1179        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1180    o pkg/exf:
1181      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1182      EXF_INTERPOLATION:
1183      - merge global_with_exf/code version of exf_interp_read.F
1184        to the main code ;
1185      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1186        reading the file ; Important: This options needs to be defined to recover
1187        previous code.
1188        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1189      - no longer loose real*8 precision along the way when using exf_iprec=64.
1190    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1191      - change discretisation of evp-solver in order to avoid another exchange
1192        (changes lab_sea) and clean up a little
1193      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1194        help the adjoint (this also changes the results slightly)
1195      - add a few "_d 0" where they had been missing in seaice_evp.F
1196      - cleaning up: remove unused seaice_calc_rhs.F
1197    o pkg/exf: some cleaning-up:
1198      - change various "constants" into runtime parameters
1199      - cleaned-up Large&Yeager04 routine which should eventually
1200        replace exf_bulkformulae.F (changed names of S/R and CPP)
1201        and merged various ALLOW_ATM_WIND options
1202     only used with thsice pkg (in thsice_get_exf.F):
1203      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1204        which are used when useStabilityFct_overIce=TRUE (= the default)
1205      - change default values of ice & snow emissivity and scale downward LW
1206        by ice & snow emissivity.
1207    o pkg/thsice:
1208     fix few little problems, in thsice_calc_thickn.F:
1209      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1210      - melt only laterally if hIce < hThinIce (as the comments say)
1211      and in thsice_extend.F:
1212      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1213      - start to form ice as soon as the minimum ice-volume is reachable.
1214     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1215      and cpl_aim+ocn
1216    o pkg/kpp
1217     - move computation of surface related input fields to KPP into a new
1218       subroutine kpp_forcing_surf.F
1219     - remove wrong (within bi,bj loops) EXCH calls.
1220     - little cleaning (add argument myThid in last position, cvs header ...)
1221     - for now, fix conservation problem by exchanging KPPviscAz (may not
1222       be the best fix)
1223    o pkg/seaice
1224     - check for inconsistent evp parameter/cpp-flag combination
1225     - remove leftover errIO flat for obsolete name list error handling
1226    o OpenAD
1227     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1228    
1229    checkpoint59a
1230    o pkg/seaice: some parameter clarifications and a little bit of clean up
1231    o pkg/thsice: rename run-time parameters:
1232       himin       -> hIceMin
1233       himin0      -> hThinIce
1234       hihig       -> hThickIce
1235       i0          -> i0swFrac
1236       transCoef   -> bMeltCoef
1237       frac_energy -> fracMelting
1238      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1239       with default values (for now) that do not change the results.
1240      remove old version of thsice vars advection in pkg/seaice.
1241    o in FFIELDS.h:
1242      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1243      - make pLoad & sIceLoad always available (but still only used if
1244         ATMOSPHERIC_LOADING is #define).
1245    o pkg/kpp: replaced _KPP_RL with _RL
1246    o bug fixes for vertical diffusivity computations when both KPP and
1247        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1248        are no longer updating the vertical diffusivity array
1249        (passed as argument) but are (re-) setting those arrays.
1250    o pkg/seaice: fix bug in evp solver, while doing that
1251      - change (improve?) discretization of stress computations for both
1252        cgrid-lsr and evp solver
1253      - add a new routine to compute strain rates
1254      - the above changes lab_sea results
1255      - add no slip conditions for evp solver (off by default), lsr-version
1256        may follow
1257      - fix exchange for shear at Z-points (does not change lab_sea)
1258      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1259        (to force the user to pick a time step since there is not "safe" way
1260        of choosing it)
1261      - add principal stress diagnostics
1262      - rearrange fields for evp a little to avoid having to call a: too many
1263        exchanges and b: exchanges for stress trensor components which we do
1264        not have.
1265      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1266        of evp, complete rewrite for lsr case (latter is does not yet work
1267        in all cases)
1268    o pkg/kpp: add code to have mixing in shelf ice caverns
1269      - add myThid to all kpp routines (long overdue)
1270    
1271    checkpoint59
1272    o pkg/exf:
1273      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1274        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1275      - move exf header files from lower_case.h to UPPER_CASE.h ;
1276        add missing cvs Header & Name
1277      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1278      - add namelist param. selectStressGridPosition, exf_monFreq
1279      - retire many _CLIM routines, and remove data.exf_clim
1280        + params moved to data.exf
1281        + climsst, climsss now handled by exf_set_gen, i.e.
1282          climss?period=0 refers to constant field,
1283          climss?period=-12 to monthly forcing
1284      - split up namelists in data.exf
1285    o pkg/seaice:
1286      - remove seaice_exch and seaice_exch_uv
1287      - remove superfluous exchange of theta
1288      - add myThid to seaice_budget_ocean/ice
1289      - add new interface for atmospheric wind forcing (C-grid only)
1290        + new routine
1291        + two new field (taux, tauy for stress over ice)
1292        + removed one global field (DAIRN) for C-grid case only
1293    o pkg/thsise
1294      - 2nd set of modifs for thsice adjoint in conjunction with exf
1295    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1296    
1297    checkpoint58y_post
1298    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1299      vertical diffusivity, similar to that in MOM4; turned on using
1300      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1301      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1302    o Added capability for 3D specification of background vertical diffusion
1303      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1304      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1305      "data" file that contains the 3D vertical diffusivity coefficients.
1306    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1307      - add code within pkg thsice to advect & diffuse sea-ice fields
1308      similar to (and will replace) what has been added in  seaice_advdiff.F,
1309      but: - conserving Mass, Heat & Salt.
1310           - better when using non-linear advection scheme (not yet fully tested)
1311           - can also be used in atmospheric set-up (for now, only the diffusion).
1312    
1313    checkpoint58x_post
1314    o IO option for global-file compact format:
1315      - add options when generating topology (utils/exch2/matlab-topology-generator)
1316      - add I/O capability (pkg/mdsio).
1317      - adapt utils/matlab/rdmds.m to read this format.
1318      for now long-line format not yet supported by pkg/mdsio (& exch2).
1319    o shelfice: add a few diagnostics
1320    
1321    checkpoint58w_post
1322    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1323      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1324      (and replace horiVertRatio in NH code).
1325      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1326                         and tutorial_plume_on_slope (sensitive to truncation)
1327    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1328      directly to drive seaice model (C-grid only)
1329    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1330     - reintroduce computation of wind from stress,
1331     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1332       mass points to avoid tau = 0
1333     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1334    o rdmnc.m: make it work with "global" files created with gluemnc
1335    o rdmnc.m : some improvements in dealing with singleton dimension
1336      (tested on all testreport mnc output files).
1337    o genmake2: disable pkg/profiles if netcdf test fails.
1338    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1339    o move call to cal_readparms up to make calendar parameters/variable available
1340      to all packages
1341    
1342    checkpoint58v_post
1343    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1344      useDynP_inEos_Zc tested.
1345    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1346    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1347      and portions thereof.  See read_cs.txt for description and examples.
1348    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1349      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1350      following the great-circle arc between those 2 points.
1351    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1352      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1353    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1354     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1355     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1356     - still needs work (not working with some options ; efficiency to improve)
1357       and serious testing.
1358     - use this scheme for temperature & salinity in 2 advection test exp.:
1359       advect_xy & advect_xz, respectively.
1360    
1361    checkpoint58u_post
1362    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1363    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1364    o testreport: add option "-skipdir" to skip some test.
1365    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1366      momentum calculation.
1367    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1368    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1369      remove checkpoint.F and the_correction_step.F (no longer used);
1370      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1371    o add option (linFSConserveTr) to correct for tracer source/sink due to
1372      Linear Free surface
1373    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1374    o pkg/thsice: fix reading mnc-pickups
1375    
1376    checkpoint58t_post
1377    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1378    o pkg/mdsio:
1379     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1380       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1381       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1382     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1383     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1384       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1385     - new S/R (to replace MDSWRITEMETA), which allows to write more
1386       informations (variable names, time ...) to meta files.
1387     - modify rdmds.m to give back the meta file content.
1388    o pkg/diagnostics: change vertical interpolation to be safer, and more
1389       flexible (define p-levels to interpolate to in data.diagnostics);
1390      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1391       diagnostic pointer.
1392    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1393    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1394    o fix multi-category seaice:
1395     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1396       SEAICE_MULTICATEGORY
1397     - fix short wave heat flux
1398    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1399       and allow to use EVP solver. Change forward lab_sea: test both EVP
1400       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1401    o Initial check-in of lab_sea adjoint
1402      (very similar to natl_box_adjoint/code_seaice)
1403      * used C-grid and EVP solver
1404      * used KPP, GM/Redi
1405      * uses inAdExact=.TRUE.
1406      * gradient checks fail for both ADM and TLM
1407        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1408        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1409        issue is related to forward mismatch between g77 an ifort
1410    o pkg/seaice: overhaul of thermodynamics
1411     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1412     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1413     - move a few global fields out of SEAICE.h into seaice_growth.F and
1414       make them 2D (FICE/QNETO/ ...)
1415     - remove FO (it is the same as QNETO)
1416     - introduce a few local fields to avoid modifying external fields such
1417       as atemp, etc.
1418    
1419    checkpoint58s_post
1420    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1421      changed exf_set_gen.F so that
1422        genperiod=0 means input file is one time-constant field and
1423        genperiod=-12 means input file contains 12 monthly means
1424    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1425      this affects truncation error ; generate new output file for exp. which
1426      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1427        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1428        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1429        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1430        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1431        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1432    o start implementation of deep-atmosphere and anelastic formulation
1433    o verification: remove 2nd copy of input files and use script "prepare_run"
1434      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1435    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1436    o profiles: fix for multithreaded case
1437    
1438    o diagnostics: rename few diags:
1439      s/'PRESSURE'/'RCENTER '/g
1440      s/'TICE    '/'oceFreez'/g
1441      s/'TAUX    '/'oceTAUX '/g
1442      s/'TAUY    '/'oceTAUY '/g
1443      s/'SWFLUX  '/'oceQsw  '/g
1444      s/DIFx/DFxE/g
1445      s/DIFy/DFyE/g
1446      and add few ocean-forcing diagnostics:
1447      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1448    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1449      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1450      as actual snow thickness.  It now refers everywhere to effective snow
1451      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1452    
1453    checkpoint58r_post
1454    o modifications to pkg/seaice/growth.F, which change results of
1455      lab_sea experiment: fixes pertain to melting snow over open water, to
1456      masking EVAP under sea ice, and to using the correct AREA variable for
1457      computations of EVAP, PRECIP, HSNOW, and GHEFF
1458    o add ability to read bathy, salt, and theta using MNC (off by def)
1459    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1460      both are turned off by default and do no change any results
1461    o seaice advection with pkg/thsice: a step toward the use of non-linear
1462      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1463    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1464      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1465      in natl_box (affects results @ truncation level: update output.txt)
1466    o multi-threading and IO:
1467      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1468      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1469        (needed to work with SingleCpuIO): tested in all verif. exp.
1470    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1471      affects the results (but none of the verification test uses this scheme).
1472    o Adding some pkg/diagnostics capability to pkg/seaice
1473      (will certainly be subject to changes)
1474    o ctrl: adding new control variables:
1475      lwflux, lwdown, evap, snowprecip, apressure, runoff
1476    
1477    checkpoint58q_post
1478    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1479      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1480      high_res_cube configuration by 4% on Columbia.
1481  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1482    add (in global_with_exf/code) a version of EXF_INTERP_READ without    add (in global_with_exf/code) a version of EXF_INTERP_READ without
1483    dynamical allocation (seems to work in multi-threaded).    dynamical allocation (seems to work in multi-threaded).
# Line 1254  o add two new packages Line 2728  o add two new packages
2728    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2729    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2730      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2731      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2732  o add offline package  o add offline package
2733  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2734    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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