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revision 1.255 by heimbach, Wed Feb 18 22:34:52 2004 UTC revision 1.1167 by jmc, Fri Oct 2 22:03:33 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 obcs:
8     - go through NH code only if nonHydrostatic=T
9     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
10     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obcields
11       => Update output of experiment seaice_obcs
12     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
13     - hack obcs_calc.F to fix restart in experiment seaice_obcs.
14     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
15    o pkg ctrl
16     - make obcs as control parameter work also with useSingleCPUio
17     - replace a few sny and snx by Ny and Nx to be consistent with
18       ctrl_set_globfld_x/yz.F
19    o pkg seaice
20     - re-introduce global field frWtrAtm for the case of
21       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
22     - catch the case of an empty filename in seaice_cost_init_fixed.F
23    o pkg ecco:
24     - small bug fixes in the_main_loop
25      . fix order of monitor arguments
26      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
27      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
28        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
29     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
30       imbalance diagnostics for wmean_h/sflux = 0
31     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
32     - catch the case of empty filenames in ecco_cost_init_fixed.F
33       and ecco_readparms.F
34     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
35       to make this statement meaningfull in ecco_cost_weights.F
36    o pkg zonal_filt:
37      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
38      - when using rStar, filter uVel*hFacW instead of uVel
39       (tested without topography: fix a Pb of growing instability with NLFS)
40    o pkg/aim/thsice:
41     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
42      (works as SST restoring)
43    o pkg/thsice:
44     -add specific parameter for salt restoring in slab mixed-layer
45       (by default equal to the temperature restoring)
46    
47    checkpoint61v
48    o pkg/kpp:
49     -add double diffusive contributions as a hack, turned off by default
50      for now, and the code can be excluded with a CPP-flag
51      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
52     -add a verification experiments to "vermix" to test this code
53    o pkg/mom_common:
54      Move computation of length scales to mom_init_fixed.F (avoid recomputation
55      at each time-steps*levels).
56    o pkg/layers:
57      Created a new package for computing volume fluxes in temperature or
58      [not yet implemented] density layers, e.g. for calculating residual
59      overturning circulations.
60    o pkg/diagnostics:
61      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
62    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
63    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
64      To avoid mixing type (RS/RL) of input/output array argument,
65      replace single mixed-type array with a pair from each type (RS/RL).
66    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
67      is now implemented for all pkgs (previously only done for the main pickup)
68    
69    checkpoint61u
70    o pkg/obcs:
71      - change OB?eta from _RS to _RL and put them into a separate commen block
72      - add code to read OB?eta from a file via obcs_prescribe_read: the code
73        compiles and does not destroy any other experiments, the data is read
74        properly, but the code is not tested in actual applications
75    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
76      create a meaningful unit attribute for the time coordinate variable
77    o pkg/ebm: add plenty of missing "_d 0" ;
78       update results of experiment global_ocean_ebm (fwd + adjoint tests)
79      Notes: several pieces of code only works for (very) specific set up
80       (domain size, lat range, etc ...); should be documented & stop if one
81       of those assumptions is not meet.
82    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
83       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
84          and offline_exf_seaice (seaicetd + adjoint).
85    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
86       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
87        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
88    o few changes to pass when compiling with strick checking of arguments
89       across S/R (allow to find few bugs in S/R calls).
90    o pkg/seaice:
91     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
92       2d-fields, for slightly better performance
93    
94    checkpoint61t
95    o pkg/seaice:
96     - remove unused variables in seaice_evp
97     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
98    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
99       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
100       each processor opens a different file (a fix from Matt).
101    o cg2d:
102       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
103       this reduces number of EXCH calls by 2 when using exch2.
104       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
105       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
106    o pkg/thsice:
107       add code for Near Infra-Red albedo (from Jeff)
108       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
109    o ini_model_io:
110       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
111       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
112       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
113    
114    checkpoint61s
115    o pkg/exch2 (exch2_rxN_cube*):
116       remove last BARRIER (no need to synchronise after getting data from shared
117       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
118    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
119      and generate new output (for the 2 tests) using default rotationPeriod.
120    o pkg/exch2:
121      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
122        (was already the case with AUTODIFF_EXCH2 defined)
123      - add bj in exch2 arrays and S/R.
124      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
125        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
126    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
127      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
128        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
129      - verification experiment natl_box.longstep
130    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
131      allow different versions of ifort (8 or 9) and different versions
132       of mpi (mpich or mpich2) to be used with the same optfile.
133      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
134       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
135    o pkg/seaice:
136      fix previous modif (3-level field removed) for old-pickup reading
137    
138    checkpoint61r
139    o pkg/seaice:
140     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
141      1. introduce fields for time step (N-1)
142      2. do not use levels 2 and 3 anymore (but keep them)
143      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
144         includes changes to pkg/thsice/thsice_get_velocity.F,
145         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
146         pkg/obcs/obcs_apply_uvice.F.
147     - completely remove code for leap-frog time stepping for second order
148       advection
149     - adjusted adjoint accordingly;
150       gradient checks have improved by an order of magnitude!
151    
152    checkpoint61q
153    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
154     - the boundary conditions along open boundaries are unclear, because the
155       associated masks are set to zero and are thus treated as closed when
156       applying the slip-boundary conditions.
157     - move initialisation of grid variables from seaice_init_varia to _fixed
158    o adding doc/diags_changes.txt
159    o model/src:
160      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
161       to avoid "_diags" naming if no relation to pkg/diagnostics.
162      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
163       file and only call PLOT_FIELD_XYZ if debugMode=T.
164      remove few PLOT_FIELD_XY calls outside initialisation.
165      remove few unnecessary BARRIER.
166    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
167      of salt_plume package in Southern Ocean
168    o pkg/thsice:
169     - fix hOceMxL in overlap (needed for sea-ice advection);
170       update output of experiment global_ocean.cs32x15.icedyn.
171    o pkg/seaice:
172     - make the (placeholder-)tracer IceAge a little more meaningful
173      by avoiding ridging of age due to convergent ice flow
174     - add diagnostics for surface temperature, atmospheric and oceanic
175       heat flux, and atmospheric and oceanic ice growth
176    
177    checkpoint61p
178    o eesupp (global_max & global_sum):
179     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
180     - remove starting & endding barrier (no longer needed)
181    o pkg/mdsio, writelocal:
182       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
183       (remove the STOP): uses shared buffer IO to store data from all threads
184       and then let master-thread write nThreads tiles.
185    o pkg/mdsio (read/write field):
186     - tiled IO done in 1 piece (all levels at a time);
187     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
188     - multi-threaded: allow to read/write local (non-shared) array
189       (was already working with singleCpuIO ; now works also without);
190       => no longer needs barrier call after reading a file (added inside
191       mds_read/write field).
192     - move barrier calls outside gather/scatter_2d to mds_read/write_field
193    o pkg/obcs/exf
194      - exf_getffieldrec.F: add a few ". _d 0" and
195                            add code to catch the case fldperiod = 0.  
196      - obcs_precribe_read.F: change if statements so that they match
197                              the variable type (_RL)
198      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
199        exf_iprec) as part of namelist EXF_NML_01
200    o pkg/mdsio:
201      - read/write tiled (local) files: read/write 1-level tile chunk at a time
202        (instead of segment of length sNx); expected to speed up tiled IO.
203    o pkg/exch2:
204      - take buffer copy from/to array out of S/R exch2_send/recv into new
205        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
206        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
207      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
208      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
209        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
210        including Topology header file (and common blocks).
211      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
212        remove 2nd exch call in exch2_s3d_rx (no longer needed).
213      - document S/R arg. list (+ update some comments)
214    o pkg/seaice:
215      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
216        temperature and humidity over sea ice based on climatological values.
217      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
218        of LSR (this change is expected to change the results slightly because now
219        it uses slightly difference moduli from the second last LSR solution, but
220        that is more consistent with the stress computations; this part of the code
221        is not tested in the verification experiments)
222      - fix diagnostics for flux of ice in case of B-grid
223      - turn strain rates eij and press into global fields within global
224        common block in SEAICE.h for more straighforward diagnostics
225      - fix diagnostics for principal stress components, press, zeta, eta
226        to give something meaning full
227    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
228      new output (all 4 tests) using default rotationPeriod.
229    o pkg KPP:
230      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
231      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
232        and normal grid from 1 to Nr)
233    o Fix computations of L4rdt in mom_calc_visc.F
234    o eesupp:
235      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
236      should be called before a "stop" if we know that all process are going
237      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
238    
239    checkpoint61o
240    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
241    o model/src/ini_curvilinear_grid.F:
242       compute angleSin/CosC when they are not read from a file
243    o pkg/seaice:
244       add pseudo time stepping for LSOR
245    o pkg/exch2:
246       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
247    o pkg/seaice:
248       Adding separate sea ice albedo, drag coefficients, and HO in Southern
249       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
250    o SingleCpuIO:
251       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
252    o pkg/seaice:
253       put exchanged variable in (local) common block for MPI+Multi-Threads
254       to work (necessary with exch1, and for now with exch2 too).
255    o verification: to get more experiments tested with mpi, mth and mpi+mth,
256      change tiling of:
257       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
258       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
259      update output of exp:
260       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
261       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
262      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
263                       (note: output.txt generated on faulks using only 1 tile)
264    o eesupp & mdsio (SingleCpuIO):
265     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
266       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
267       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
268     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
269     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
270       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
271    o pkg/exch2:
272     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
273       read parameter file "data.exch2" if it exists; otherwise try default regular
274       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
275     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
276       with new code (not to be used, just as a backup solution).
277     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
278       in utils/exch2/input.
279    
280    checkpoint61n
281    o eesupp & mdsio (SingleCpuIO):
282      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
283        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
284        receive real*4 array (instead of real*8) to read/write 32.bit files.
285        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
286         and remove new mapping S/R)
287    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
288      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
289        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
290        when using exch2. Add S/R to map global io-buffer to global model array.
291      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
292    
293    checkpoint61m
294    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
295      and add 3 other S/R for other types (R4,R8,RS).
296      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
297    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
298     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
299     - reduce number of macro definitions (keep only those which are used);
300       can always call directly the corrresponding S/R if needed.
301     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
302       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
303     Fixed wrong type of arg in:
304       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
305       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
306     To fix: global_sum of var in common block is wrong (multi-threaded) in:
307       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
308     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
309    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
310      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
311    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
312    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
313      edges are closed (zero depth); might happen with "blank tiles";
314      for now, disabled if using OBCS.
315    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
316      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
317    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
318      to reduce length of 1.D array print in STDOUT.
319    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
320      + use 48 tiles (16x8): this will allow to test "blank tiles".
321    o start to test MPI + multi-threaded (change testreport to skip tests
322      where number of tiles do not match).
323    o genmake2: add option "-omp" to turn on Open-MP ;
324      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
325    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
326      and keep the original tile numbering. Note: compatible with old
327      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
328    
329    checkpoint61l
330    o Overlaps had been forgotten in calculating ijk keys : fixed
331    o fix cyrus makedepend for gcc 4.4
332    o experiment fizhi-cs-aqualev20:
333      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
334      and generate new output. Note: new output is much closer to the old
335      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
336      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
337    o pkg/fizhi:
338     - change to avoid indices going deliberately over array-bounds
339     - remove unnecessary MPI stuff
340     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
341     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
342       does not go over array-bounds and therefore returns reliable output.
343     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
344       this S/R has 4 output arguments, which are used inside "get_alarm";
345       when it is called with the same variable "ndum" in place of several
346       output arguments, this produces weird side effect inside "get_alarm"
347      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
348       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
349       address) and produces error.
350    o tools/gemake2: (March 27-29 2009)
351      with option "-mpi": link *_mpi files from "MODS" dir (this is what
352      testreport does).
353    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
354    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
355       update lab_sea.lsr & lab_sea.salt_plume results
356    o pkg/seaice:
357      Major overhaul of the LSOR solver: change discretization from original
358      finite differences to finite volume. The old routine is still in the
359      file seaice_lsr.F and can be turned on with the CPP-flag
360      SEAICE_OLD_AND_BAD_DISCRETIZATION
361      Along with this change, the discretization of the strain rates is changed.
362      The same flag turns on the old discretization in seaice_calc_strainrates.F
363      All verification experiments with seaice are affected (except for
364      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
365      results by setting the above flag.
366      Further changes involve changes in defaults:
367      - ALLOW_FLOODING is defined and turned on by default
368      - SEAICEadvSnow = .true. is now the default
369      - SEAICEadvSalt = .true. is now the default
370      - SEAICEadvAge  = .true. is now the default
371      - SEAICE_clipVelocities  = .false. is now the default
372                                         (as per J. Zhang's recommendation)
373      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
374        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
375      - seaice_growth: replace computation of UG by a simple copy from wspeed
376    
377    checkpoint61k
378    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
379      seaice_lsr: fixed a few metric terms,
380                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
381                  add more debugging diagnostics
382      seaice_evp: removed superfluous many metric terms of FV discretization
383                  of stress divergence
384                  affects lab_sea, lab_sea.hb87
385      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
386                  of stress divergence for non-evp solver
387                  (this part is not tested anywhere)
388      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
389                  they were effectively only half slip
390                  affects lab_sea.hb87
391      updated all relevant verification experiments (except lab_sea//output_adm.txt
392        which was left over, but fails at level 7 & 6)
393    
394    checkpoint61j
395    o pkg/seaice: turn a few hard wired parameters into run time parameters
396    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
397      time in seconds as promised by the usints in seaice_monitor and exf_monitor
398    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
399      that are not cubed-sphere grids
400    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
401    o pkg/ctrl:
402      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
403    o non-hydrostatic (calc_gw.F):
404      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
405      update output of exp. global_ocean.cs32x15.viscA4
406    o remove backward compatibility for thetaMin,phiMin
407      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
408    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
409      interpolated wind field not only for curvilineargrid=.true., but also
410      for a rotated grid (rotateGrid=.true.)
411    o pkg/exf: add capability to bypass interpolation for runoff
412      by setting yet another CPP-flag
413    o eesupp/src, B-grid exchange:
414      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
415    o autodiff
416      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
417      allows to switch to single-prec common blocks;
418      corresponding switch occurs in tamc.h, integer isbyte
419      TAF store directivs "byte" and "kind" seem equivalent;
420      Most tamc.h have been updated correspondingly.
421    
422    checkpoint61i
423    o autodiff:
424      fix autodiff_sore/_restore indices for obcs
425      (spotted by I. Hoteit, M. Mazloff)
426    o pkg/autodiff, pkg/ctrl:
427      Add flag to reduce all tapelev I/O to single-prec.
428      In data.ctrl set
429        doSinglePrecTapelev = .TRUE.
430    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
431      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
432    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
433      real fresh water flux (not yet)
434    o pkg/mdsio & rw:
435     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
436     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
437    o pkg/flt:
438     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
439       init_fixed & ini_varia.
440     - clean-up & simplify linear interpolation S/R:
441       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
442     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
443     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
444     - add vert. coordinate & horiz. indices to output files.
445     - change vertical position in initial condition, from index to depth [m].
446     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
447       (easier to get to a curvilinear grid) ; delX,delY no longer used.
448    o pkg/ggl90: a few modifications:
449     - fix bottom boundary condition, and interpolation of KappaE
450       near top and bottom
451     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
452     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
453     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
454    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
455      (maintain temporary backward compatibility, until next checkpoint)
456    
457    checkpoint61h
458    o pkg/diagnostics with "periodic averaging diagnostics":
459      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
460    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
461    o pkg/obcs: fix loop ranges for balancing code
462    o pkg/flt:
463     - improve criteria for finding which tile owns a float.
464     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
465    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
466      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
467      with ocean biogeo)
468    o pkg/flt:
469     - do some cleaning and fix the restart ;
470     - add output.txt in flt_example/results to get this pkg tested.
471    o genmake2: add an EXTENDED_SRC option and flag.
472       for now, cannot be turned on on command line (only through genmake_local)
473    o pkg/mdsio: read/write vector:
474     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
475     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
476       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
477     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
478      (drop to 4 digits matching for grad). But this test does not look very
479      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
480    
481    checkpoint61g
482    o pkg/flt:
483      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
484       + make OPTIONS file more standard.
485      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
486      - fix _BYTESWAPIO CPP-Flag
487      - standard reading of file-parameter "data.flt"
488      - fix argument list of S/R FLT_RESTART
489      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
490    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
491    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
492      a still unfixed compiler/optimization bug
493    
494    checkpoint61f
495    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
496      update results of global_ocean.cs32x15.icedyn test.
497    o move getcon.F from model/src to pkg/fizhi.
498    o pkg/exf: add parameter for extrapolation of temp up to the surface
499       and option to prevent negative evap (in bulk_largeyeager04 only).
500    o Prather Advection scheme: fix tracer conservation for divergent flow
501      (e.g., when using NonLin Free-Surface).
502    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
503    o gmredi (Visbeck-variable-K):
504     - add more parameters to Visbeck-variable-K.
505     - use a 5 points average for dSigmaR in Visbeck-K calculation
506       (more "homogenous": same stencil and same weights as in dSigmaH)
507     - update output of ideal_2D_oce experiment.
508    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
509      (#undef REAL4_IS_SLOW)
510     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
511       coordinate variable
512     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
513       (surface forcing fields), removes some of the functionality
514     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
515     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
516       probably not all: copy _RS surface flux fields to RL field before
517       calling DIAGNOSTICS_FILL
518     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
519       real*4 (CALL EXCH_*_RS) versions.
520     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
521       (generate new output).
522    
523    checkpoint61e
524    o gmredi (Visbeck-variable-K):
525      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
526      - change computation of Visbeck-K where Slope > Smax :        
527        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
528        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
529    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
530      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
531    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
532    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
533      does not become too large (to avoid precision problems in implicit-diffusion
534      solver); update ideal_2D_oce output.
535    o pkg ggl90:
536      - in ggl90_cal.F: compute only one set of visc/diff, used to
537        step forward TKE/T/S/momentum
538      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
539        have Prandlt =1)
540    o gmredi (fm07):
541      - add lower limit on Transition layer thickness + lower limit on 1/lambda
542      - allow to set few more params from data.gmredi
543    o pkg ggl90:
544          - add missing sqrt(2) factor in computation of mixing length
545            scale in ggl90_calc.F
546            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
547    
548    checkpoint61d
549    o adjoint modifs
550      - adapt to new field rhoInSitu
551      - allow to revert from StoreDynVars2D, StoreDynVars3D
552        to individual fields
553        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
554    o store 3-D (in-situ) density in commom block (DYNVARS.h)
555     - save 1 rho computation.
556     - no longer modify T & S inland when using down_slope pkg.
557    o gad_som : allow to switch to SOM advection for T & S without corresponding
558      pickup files (using new S/R: MDS_CHECK4FILE).
559    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
560      (for useSingleCpuIO to work in multi-threaded)
561    o pkg/shelfice:
562     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
563       with SHELFICEtopoFile in data.shelfice
564     - move code for reading ice shelf topography and modifying hFacC into separate
565       subroutines of the shelfice package
566     - separate initialisation of "fixed" and "variable" variables
567     - kTopC is not (yet) replaced by kSurfC, although this is possible
568    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
569    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
570      and rename:
571      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
572      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
573    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
574    
575    checkpoint61c
576    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
577      to add mass source/sink of fluid in the interior (3-D generalisation
578      of oceanic real-fresh water flux).
579    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
580    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
581    o new pkg: down_slope
582      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
583      - presently, modify T & S inland (dwnslp_calc_rho.F).
584        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
585      - implementation for ocean in P-coords not tested.
586      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
587    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
588      (to facilitate conversion of oceanic pkg to p-coordinate).
589    o change FIND_RHO to FIND_RHO_2D :
590      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
591    o new pkg: cheapaml
592    
593    checkpoint61b
594    o exch2:
595      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
596      - no longer depend on the order sequence (N,S,E,W).
597      - 3rd exchange no longer needed (tested with 24 tiles).
598      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
599      - exch_UV_A-grid readily available (but not yet tested).
600      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
601      (both are no longer needed) in exch_uv: no effect in forward run; but
602       get truncation error differences with adjoint exch.
603    o exch2:
604     - change index-bounds storage (moved from target to local tile,
605       more intuitive this way) ; rename/remove some variables.
606     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
607    
608    checkpoint61a
609    o exch2/matlab-topology-generator:
610      fix bug in index bounds for N-S internal exchange (hard to tell if this
611      had any effect on the solution).
612    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
613      is exceeded
614    o testreport: modify syntax of awk, so that it works also with
615      awk, and not only with nawk and gawk
616    
617    checkpoint61
618    o autodiff
619      Change default for TAF usage by removing argument '-nonew_arg'
620      This changes TAF subroutine argument list (ordering of active var.)
621      Omission of this flag leads to incompatibility w.r.t. TAMC
622      To restore TAMC-compatibility, need following modifs:
623      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
624      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
625      Tested TAF version is 1.9.22
626      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
627    
628    checkpoint60
629    --->>> This is the last checkpoint for which generating the adjoint
630    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
631    --->>> by default.
632    --->>> Future checkpoints will ommit this flag by default.
633    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
634    o pkg/grdchk: Add gradient check to etan0 perturbations.
635    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
636    o pkg/autodiff: more flexibility in zeroadj.
637      model/src: modifying do_oceanic_phys.F accordingly.
638    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
639    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
640      special setup of gmredi for which the adjoint is stable
641      enough for parameter optimization.
642    o bridging the gap between eddy stress and GM.
643      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
644          along with a change in CPP option (now ALLOW_EDDYPSI).
645      -> when using GM w/ GM_AdvForm:
646          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
647          is applied either in the tracer Eq. or in momentum Eq.
648          depending on data.gmredi (intro. GM_InMomAsStress).
649      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
650      The key modifications are in model/src/taueddy_external_forcing.F
651      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
652    
653    checkpoint59r
654    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
655      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
656      fix option to read coriolis(@ cell-corner) from files with CS-grid.
657    o pkg/mnc: add some attributes to standard 1D-coordinate variables
658    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
659      mass points, when using mnc for output
660      - add runtime parameter (missing_value, missing_value_int) to override
661        default (which is the value of getcon('UNDEF'))
662    o pkg/mnc: prepare mnc for the actual use of missing values with the
663      diagnostics package: small fix in mnc_cw_readwrite.template and more
664      initialisation of never used fields
665      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
666      versions
667    o pkg/thsice/thsice_ini_vars.F added default initial values so that
668      thermodynamics sea ice solver does not blow up when some initial fields
669      are missing.
670    o move from external_forcing_surf.F to ini_forcing.F
671      the p-coord. hack consisting in using pLoad to set phi0surf ;
672      update output of tutorial_global_oce_in_p (affected @ truncation level).
673    o Freshen up a bit hs94.1x64x5, notably:
674      remove rotationPeriod and tRef=5*0. (adjoint only), and add
675      exactConserv=.TRUE.
676    o pkg/generic_advdiff:
677      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
678      applies to files where Temperature & Salinity 2nd Order moments are used.
679    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
680      this uses a dynamically allocated internal state data structure
681      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
682      and requires a fortran 90 compiler
683    
684    checkpoint59q
685    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
686       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
687    o Refresh tutorial_global_oce_biogeo, notably:
688      - change bathymetry (put back seamounts in ACC, use hFacs)
689      - change EOS (POLY3 --> JMD95Z)
690      - use Bryan-Lewis vertical diffusivity
691      - use multidimensional advection
692      - remove old virtual virtual in dic pkg, now done through ptracer pkg
693      - change a couple of parameters in dic pkg
694    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
695    o pkg/obcs: change default to OBCSfixTopo = .true.,
696      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
697      - replace "debugMode" with "debugLevel .GE. debLevB"
698    o implementation of TAF directives for gchem,cfc,dic
699    o remove "exp5" (replaced by tutorial_deep_convection).
700    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
701      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
702      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
703      --> changes results in exp4, seaice_obcs
704    o tutorial_deep_convection :
705      update the set-up and increase resolution and domain size ; start
706      from pseudo initial conditions = output at t=120mn in order to see
707      something happening when running testreport.
708    o pkg/seaice: add os7mp as an advection scheme
709                  add check for advection schemes
710                  add a flag for restoring T and S underneath sea ice
711    o pkg/my82: add netcdf-support and diagnostics
712    o thsice pkg:
713      - Now hsMax limits snow height by turning it into ice following
714        flooding scheme (and now conserving energy)
715      - Slight rewriting of the formula in thsice_calc_thick.F
716      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
717      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
718    
719    checkpoint59p
720    o gchem / dic / cfc :
721      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
722      - add new parameter files: "data.dic" & "data.cfc" ;
723      - various re-arrangement in initialisation & header file ;
724      - fix tutorial_global_oce_biogeo for multi-threaded test.
725    o pkg/dic: test for "pickup_dic" file when restarting ;
726      if no pickup-file, can restart with a re-initialised pH (same as it did
727      before) providing pickupStrictlyMatch is set to False.
728    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
729      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
730    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
731      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
732    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
733     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
734       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
735    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
736       scheme to use for vorticty-term ;
737     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
738       (with default selectVortScheme, return to original discretisation)
739     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
740    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
741    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
742      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
743      also fix diagnostics VISCAHW & VISCA4W.
744    
745    checkpoint59o
746    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
747    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
748      move a few statemens out the main loop into separate loops
749    o pkg/shelfice:
750      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
751        (kg/m^2/s), does not break tests, because in verification/isomip,
752        rhoConstFresh=rhoConst (by accident)
753      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
754      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
755        new file model/src/seawater.F, so that they are available for all pkgs.
756      - convert potential temperature into in-situ temperature. This changes the
757        isomip tests => update tests
758    o add a flag writePickupAtEnd (default=true) to be able to suppress
759      writing a pickup at the last timestep
760    o tools/mpack-1.6 :
761      - disable automake (not working) and autoconf (not needed).
762      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
763        also cleaner with much less compilation warnings.
764    o pkg/profiles:
765      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
766      (for "less than 32 characters name" compiler requirement)
767    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
768      conditions that have a different sampling frequency than S/T/U/V obcs
769    o pkg/diagnostics (stats-diags):
770      - fix global Min/Max in case 1 processor get only empty tiles
771    o genmake2: replace (4 times)
772         make genmake_tc_1.o >> genmake_warnings 2>&1
773      with
774         COMM="$CC $CFLAGS -c genmake_tc_1.c"
775         echo $COMM >> genmake_warnings
776         $COMM >> genmake_warnings 2>&1
777      to make genmake2 always see the value of CC as specified in the optfile.
778    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
779      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
780      - modify verification advect_cs test to test SOM-advection on CS-grid.
781    o pkg/ctrl:
782      - Rewrite of ctrl_map_ini_ecco.F,
783        introducing a generic routine (ctrl_map_ini_gen.F).
784      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
785    
786    checkpoint59n
787    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
788      number in dedicate array "hdiag":
789      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
790        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
791      - many small changes (integer format) for large number of diagnostics
792      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
793        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
794    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
795      usingSphericalGrid, this allows to define the rotated grid coordinates
796      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
797      geographical coordinates according to the inverse of the rotation defined
798      by the Euler angles, so that Coriolis parameter and online-interpolation by
799      exf works with the geographical coordinates on XC/YC/XG/YG.
800      Naturally, this feature does not work with all packages, so some
801      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
802      profiles), because there the coordinates are assumed to be regular
803      spherical grid coordinates.
804    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
805      - introduce isopycnal diffusion coefficient control.
806    o tools/adjoint_options:
807      - additional control vector components.
808    o pkg/mnc: have mnc create marginally meaning full coordinate variables
809      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
810    o pkg/mypackage:
811      - add example of read/write pickup for state-var ;
812      - add entry points to the main code for state-vars diags & write-pickup.
813    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
814      transitions for useExfYearlyFields
815      - add new subroutine that determines the file to read from for
816        use*YearlyFields = .TRUE. and .FALSE.
817      - add a verification experiment to global_with_exf that tests
818        useExfYearlyFields with USE_EXF_INTERPOLATION defined
819    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
820      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
821      subroutines (which could be generated from a template, because they are
822      almost identical), for now they are included in obcs_prescribe_read.F for
823      simplicity
824    o pkg/exf:
825      - add a little more diagnostic to exf_interp_read (in analogy to
826        mds_read_field, can be turned off with debugLevel < debugLevA=1)
827      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
828        ugly but fast by unrolling short inner loops, inserting a unroll=8
829        directive in routine lagran, and splitting a loop and making do while the
830        outermost loop (the latter requires the intoduction of index arrays)
831    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
832    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
833      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
834    o verification/seaice_obcs: updated for restart test and latest options
835    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
836      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
837      for now this is only available for the C-grid code and also within
838      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
839    
840    checkpoint59m
841    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
842      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
843    o gad_som : fix flux output (& diagnostics) to have same units as other  
844      advection scheme fluxes (was previously multiplied by deltaT).  
845    o added verification/seaice_obcs both to test seaice open boundaries
846      and to provide an example matlab scrpt for generating them
847    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
848    o pkg/salt_plume: clean up salt_plume_frac.F to
849      remove redundancy in PlumeMethod 1 and 4
850    o pkg/kpp: added saltplume diagnostics
851    o pkg/obcs and pkg/seaice:
852      - do not set uice and vice to zero when OB*icefile are unspecified
853      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
854      - moved seaice tracer obcs after call to seaice_growth
855    o pkg/salt_plume: added various options for salt plume depth
856      criterion and for vertical distribution of the salt
857    
858    checkpoint59l
859    o pkg/ptracers: new version of ptracers pickup:
860      read meta file and write only fields which are needed to restart.
861      ( same logic as main pickup file ; also using pickupStrictlyMatch )
862    o pkg/seaice:
863      - add timescale for melting due to warm mixed layer as a means of
864        setting SEAICE_availHeatFrac more conveniently
865      - add a CPP-flag/runtime parameter check for flooding algorithm
866      - reformulated availHeat in seaice_growth.F to be independent of AREA
867    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
868      unit changes
869    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
870    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
871      SX vector computer.
872    o pkg/seaice:
873      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
874        seaice forcing fields can now be read only through pkg/exf
875      - removed some unused halos
876    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
877    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
878      or U/VICE from U/VWIND before computing U/VSTRESS
879    
880    checkpoint59k
881    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
882      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
883    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
884      all experiments pass when compile with un-initialised var. checking option.
885    o added pkg/salt_plume
886    o script to test restart (for now, in MITgcm_contrib/jmc_script)
887    o pkg/seaice: new read/write pickup version.
888      read meta file and write only fields which are needed to restart.
889      ( same logic as main pickup file ; also using pickupStrictlyMatch )
890    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
891    o lab_sea.hb87: modify the domain & update output.hb87.txt :
892      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
893      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
894      process. Fixed here by closing the domain at the Northern boundary.
895    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
896    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
897      a set of consecutive levels in/from a 3-D array.
898    o pkg/ptracers:
899      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
900      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
901    
902    checkpoint59j
903    o in pkgs: dic, obcs, offline, rbcs:
904      standard way to compute coeff. for time interpolation between 2 time reccords
905      which retains full precision (& make results less dependent on compiler).
906      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
907    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
908      packages instead of reading ice cover and wind speed separately
909    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
910     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
911      to allow to compile customized code before the update)
912    o cleaning-up:
913      - fix CPP instruction syntax in pkg/obcs
914      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
915        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
916      - fix some threads issue in IO parts.
917    o pkg/dic:
918      - add tons of "_d 0" (--> much better testreports !)
919       and then update outputs of tutorial_global_oce_biogeo
920    o pkg/mom_fluxform:
921      add a special version of momentum advection intended to conserve momentum
922      next to a bathymetry step or a coastline edge. (default = off = #undef)
923    o new read/write pickup version:
924      - for now, only implemented for main (mdsio) pickup file.
925      - write out only what is needed to restart; merge pickup_nh , pickup_ph
926        and main pickup together.
927      - read meta file; read only what is needed to restart; stop if a field
928        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
929        if it make sense (even if the restart is not perfect).
930      - if no meta file, assume that pickup to read corresponds exactly to
931        a pickup that would currently be written.
932      - read pickup written in the old format (until checkpoint59i) if it
933        recognizes an old meta file (no field-list).
934      - add a meta file in exp. which starts from a pickup: 2 cases:
935        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
936         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
937        b) a meta file describing the content of the associated pickup file
938         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
939    o pkg/mdsio & pkg/rw:
940      - new routine to read a meta file ; new set of routine to read
941        Multiple-fields file (with meta file).
942    o added open boundary conditions capability for seaice
943        HSNOW, HSALT, UICE, and VICE
944    
945    checkpoint59i
946    o adjoint:
947      * fix multiDimAdvection adjoint
948        (partial recomputation problem by TAF for fVerT(:,:,kDown)
949        and comlev1 size definition (maxpass vs. max. number of tracers)
950      * verification/global_ocean.90x45x15 adjoint now tests
951        NLFS and multiDimAdvection using DST3 (=30)
952      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
953    o pkg/kpp: add "_d 0" to real constant (if missing);
954      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
955      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
956    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
957      for internal parameters related to restart process (formerly from PARAMS.h)
958      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
959    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
960      as argument. (only atm2d & obcs write_pickup have not yet been updated)
961    o pkg/monitor:
962      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
963      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
964      - account for deep Atmosphere factor and density factor (anelastic)
965    o added open boundary conditions capability for seaice HEFF and AREA
966    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
967      thermodynamics
968      - requires a little reorganization, which affects the testreport results
969        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
970        so that now the conservative form is tested
971      - add a few comments
972    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
973    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
974    o add new diagnostics to seaice: advective, diffusive fluxes (only for
975      multidim-advection, for scheme 2 they are not filled) and transports,
976      thermodynamic growth rates
977    o change units of EmPmR (inside the code, + within coupling interface)
978      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
979      Affects results @ truncation level (cg2d match) and update output of
980       experiments: lab_sea(6), global_ocean.90x40x15(10),
981      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
982      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
983      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
984      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
985    
986    checkpoint59h
987    o pkg/exf:
988      - improve vectorization by moving if-statement out of loops in
989        exf_mapfields, exf_radiation
990      - exf_bulkformulae.F: introduce 2D fields and vectorize code
991    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
992    o testreport:
993      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
994        monitor & update offline_exf_seaice exp. output.
995      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
996    o pkg/seaice:
997      - bug fix in the evp solver: boundary conditions were affected be
998        masking of zMax/zMin (changes results)
999      - minor bug fix in boundary conditions in seaice_calc_strainrates
1000        (changes results for no_slip)
1001      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1002      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1003      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1004        stress formulation and no-slip boundary conditions
1005    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1006      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1007    o pkg/seaice: a first HSALT time stepping equation has been checked in
1008    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1009      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1010      without requiring DO-IF statements
1011    o pkg/thsice:
1012      use continuous power-law function for partition of energy between lateral
1013      melting/freezing and thinning/thickening ; old code using step function
1014      still available with #undef THSICE_FRACEN_POWERLAW
1015      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1016    o testreport: change AD testing : check against results/output_adm.txt
1017      using same scripts as for forward test.
1018    
1019    checkpoint59g
1020    o adjoint testing: in preparation for changing testreport:
1021      - output format: cost and grad written on separated lines
1022      - ad output results in directory "results" (instead of "results_ad")
1023    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1024    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1025    o pkg/ecco: allow user defined cost function contributions
1026    o testreport:
1027      Allow to choose (per experiment) the list of tested output variables
1028       and the main variable (used to issue a pass/FAIL ) ;
1029      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1030      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1031      Also modify printing of summary:
1032       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1033       b) echo the list of tested variables in the individual summary.txt of
1034          each experiment.
1035    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1036      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1037      (but still depend on the tile decompostion of the domain).
1038    o pkg/seaice: change a discretization detail to make the B-grid code
1039      "more symmetric". This change is likely to remove all "ridges/leads" that
1040      where quasi-aligned with the grid in B-grid solutions. It may also be
1041      the solution to the stress coupling issues with the B-grid.
1042    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1043      remove .cvsignore from input dir. (since testreport no longer run here).
1044    o pkg/thsice:
1045     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1046     - fix reshaping of sea-ice just after advection:
1047       melt all the ice only if ice-volume is too small.
1048     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1049       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1050     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1051    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1052      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1053    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1054      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1055      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1056      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1057      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1058      -> update output.txt
1059    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1060     this affects truncation error: -> update output.txt of exp:
1061      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1062      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1063    
1064    checkpoint59f
1065    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1066    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1067      a bounded range (in forward mode)
1068    o pkg/ecco, ctrl, autodiff and mom_common:
1069     internal parameter controls, completements of implementations
1070    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1071    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1072      (not seem any difference in testing results).
1073    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1074       at face corners.
1075    o pkg/generic_advdiff:
1076     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1077      loop range indices for computing vertical advection tendency
1078      and do the calculation in the interior only (no overlap) ;
1079      for now, only implemented for SOM advection (to save CPU time).
1080     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1081    o exch2 adjoint
1082      First set of changes:
1083      - add exch2 hand-written adjoint templates
1084      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1085        This will require cleanup in pkg/autodiff/*.F
1086        (changed routines currently kept separate in verif. code/)
1087      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1088        that used to hide exch2 or cubed-sphere specific code
1089        (commented via 'cph-exch2')
1090    o pkg/seaice
1091      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1092    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1093       output of global_ocean.cs32x15.thsice .
1094    
1095    checkpoint59e
1096    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1097      for B-grid vector (not yet tested) and C-grid vector (<- only used
1098      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1099    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1100      (#ifdef ALLOW_SALT_PLUME)
1101    o gather_2d/scatter_2d: removed halo regions
1102    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1103      scheme and the corresponding test case (under front_relax dir). For now,
1104      only available with Skew-flux form and not yet tested in realistic set-up.
1105      adjoint: store directives updated, but gradient checks deteriorated,
1106      so maybe GM/Redi adjoint is now broken.
1107    o seaice adjoint
1108      * add AREA, HEFF, HSNOW as control variable
1109        (should not change lab_sea results)
1110      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1111    o pkg/seaice:
1112      * added computation of saltFlux in seaice_growth;
1113        For time being, sea ice salinity is assumed constant
1114        contribution of snow flooding to freshening of sea ice is neglected.
1115        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1116        defaults to 0.0 in order to maintain backward compatibility.
1117        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1118      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1119      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1120        heat content used to melt or grow ice
1121      * commented out cap of HICE: it helps keep ice thinner
1122      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1123      * applied OBCS T/S mask to HEFFM sea ice mask
1124    
1125    checkpoint59d
1126    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1127     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1128     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1129    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1130     and change default value of parameter "GM_Small_Number";
1131     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1132       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1133       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1134    o pkg/ecco: cost function when applying pkg/smooth to controls
1135    o pkg/ctrl: add forcingPrecond run time parameter
1136    o pkg/seaice:
1137     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1138     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1139       changes verification/lab_sea
1140     - rearrange implicit part of u-equation in LSR solver to make it easier to
1141       read, understand, and debug. This causes changes at the truncation level.
1142     - fix (serious) bug in the boundary conditions (sign error in the implicit
1143       part) of the LSR solver. Changes all LSR results.
1144     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1145       is initilized with small values - does not change lab_sea results.
1146     - added HsnowFile initialization capability
1147    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1148     initialization of pkg/smooth and application to control vector
1149    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1150    o dependencies: pkg/profiles requires pkg/cal
1151    o pkg/profiles:
1152     - added option ALLOW_PROFILES_GENERICGRID
1153         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1154         that interpolation information (grid points and coefficients) is provided
1155         within the netcdf input files.
1156         -> sample matlab scripts can be found in MITgcm_contrib/gael
1157         that allow you to prepare netcdf input files.
1158     - also modified: cleaner include statements, cleaner error print statements,
1159       cleaner stops when error, and more tests of the netcdf input files consistency.
1160    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1161    o pkg/seaice:
1162     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1163       requires a new routine: seaice_diagnostics_fill.F
1164     - make sure that seaice does not move if not forced (pressure replacement
1165       method, Hibler and Ip, 1995), changes results
1166     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1167     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1168       It is turned off by default (=-1.), because it changes the results.
1169     - make it possible to read AREA from a file, too.
1170    
1171    checkpoint59c
1172    o add S/R and diagnostics for oceanic mixed-layer depth
1173    o move GMRedi call after all vertical mixing schemes (including KPP)
1174    o pkg/thsice:
1175     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1176      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1177    o pkg/obcs:
1178     - bug fix for balance code
1179    o pkg/seaice:
1180      - allow values of SEAICE_elasticParm > 1
1181      - add new parameter SEAICE_evpTauRelax as an alternative
1182        to SEAICE_elasticParm
1183      - make lsr boundary conditions free slip (by default), changes result
1184      - add code for no slip boundary conditions for lsr
1185      - set minimum of zeta to zero (and not 4e8) (changes results)
1186      - add a cap on AREA after advecting AREA if seaice_growth is not called
1187    o change calculation of Visbeck K:
1188      - no longer depend on tapering scheme; instead, compute slope (limited
1189        by GM_maxSlope). this is equivalent to what was comuted before with
1190        clipping or linear tappering.
1191      - fix vertical averaging (wrong by 1/2 level)
1192      - leave the old version (but will not be maintained) within
1193        #ifdef OLD_VISBECK_CALC / #endif
1194      - update output of exp. ideal_2D_oce
1195    o change error catch in calc_r_star to improve vectorization
1196    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1197      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1198    o adjoint:
1199      Re-organized adjoint checkpointing according to Matt Mazloff
1200      (but with modifs/completions/cleanups)
1201      Storing is now bundled into large arrays to optimized I/O
1202      (and second step in cleanup of the_main_loop)
1203    
1204    checkpoint59b
1205    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1206      - export/import (between ocean & coupler) fields needed for ocean DIC.
1207    o pkg/seaice:
1208      - get rid of three more exchanges seaice_calc_viscosities (required
1209        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1210      - bug fix in seaice_ocean_stress (update of lab_sea required)
1211      - reduce loop boundaries to necessary minimum also in seaice_evp
1212      - go back to the old way of computing deltaC/Z as the adjoint likes that
1213        better
1214    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1215      passive tracer to an Age Tracer) + update output.txt
1216    o pkg/exf:
1217      - implement A-grid / C-grid selection for wind-stress input files.
1218      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1219      for now, in exf_bulk_largeyeager04.F only :
1220      - change implementation for case where windspeed + 2. components wind-stress
1221        are read-in. AND use rhoConstFresh to convert evap.
1222    o pkg/seaice:
1223      - use correct EXCH_UV for wind-forcing (on A-grid).
1224      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1225        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1226    o pkg/exf:
1227      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1228      EXF_INTERPOLATION:
1229      - merge global_with_exf/code version of exf_interp_read.F
1230        to the main code ;
1231      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1232        reading the file ; Important: This options needs to be defined to recover
1233        previous code.
1234        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1235      - no longer loose real*8 precision along the way when using exf_iprec=64.
1236    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1237      - change discretisation of evp-solver in order to avoid another exchange
1238        (changes lab_sea) and clean up a little
1239      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1240        help the adjoint (this also changes the results slightly)
1241      - add a few "_d 0" where they had been missing in seaice_evp.F
1242      - cleaning up: remove unused seaice_calc_rhs.F
1243    o pkg/exf: some cleaning-up:
1244      - change various "constants" into runtime parameters
1245      - cleaned-up Large&Yeager04 routine which should eventually
1246        replace exf_bulkformulae.F (changed names of S/R and CPP)
1247        and merged various ALLOW_ATM_WIND options
1248     only used with thsice pkg (in thsice_get_exf.F):
1249      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1250        which are used when useStabilityFct_overIce=TRUE (= the default)
1251      - change default values of ice & snow emissivity and scale downward LW
1252        by ice & snow emissivity.
1253    o pkg/thsice:
1254     fix few little problems, in thsice_calc_thickn.F:
1255      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1256      - melt only laterally if hIce < hThinIce (as the comments say)
1257      and in thsice_extend.F:
1258      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1259      - start to form ice as soon as the minimum ice-volume is reachable.
1260     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1261      and cpl_aim+ocn
1262    o pkg/kpp
1263     - move computation of surface related input fields to KPP into a new
1264       subroutine kpp_forcing_surf.F
1265     - remove wrong (within bi,bj loops) EXCH calls.
1266     - little cleaning (add argument myThid in last position, cvs header ...)
1267     - for now, fix conservation problem by exchanging KPPviscAz (may not
1268       be the best fix)
1269    o pkg/seaice
1270     - check for inconsistent evp parameter/cpp-flag combination
1271     - remove leftover errIO flat for obsolete name list error handling
1272    o OpenAD
1273     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1274    
1275    checkpoint59a
1276    o pkg/seaice: some parameter clarifications and a little bit of clean up
1277    o pkg/thsice: rename run-time parameters:
1278       himin       -> hIceMin
1279       himin0      -> hThinIce
1280       hihig       -> hThickIce
1281       i0          -> i0swFrac
1282       transCoef   -> bMeltCoef
1283       frac_energy -> fracMelting
1284      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1285       with default values (for now) that do not change the results.
1286      remove old version of thsice vars advection in pkg/seaice.
1287    o in FFIELDS.h:
1288      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1289      - make pLoad & sIceLoad always available (but still only used if
1290         ATMOSPHERIC_LOADING is #define).
1291    o pkg/kpp: replaced _KPP_RL with _RL
1292    o bug fixes for vertical diffusivity computations when both KPP and
1293        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1294        are no longer updating the vertical diffusivity array
1295        (passed as argument) but are (re-) setting those arrays.
1296    o pkg/seaice: fix bug in evp solver, while doing that
1297      - change (improve?) discretization of stress computations for both
1298        cgrid-lsr and evp solver
1299      - add a new routine to compute strain rates
1300      - the above changes lab_sea results
1301      - add no slip conditions for evp solver (off by default), lsr-version
1302        may follow
1303      - fix exchange for shear at Z-points (does not change lab_sea)
1304      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1305        (to force the user to pick a time step since there is not "safe" way
1306        of choosing it)
1307      - add principal stress diagnostics
1308      - rearrange fields for evp a little to avoid having to call a: too many
1309        exchanges and b: exchanges for stress trensor components which we do
1310        not have.
1311      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1312        of evp, complete rewrite for lsr case (latter is does not yet work
1313        in all cases)
1314    o pkg/kpp: add code to have mixing in shelf ice caverns
1315      - add myThid to all kpp routines (long overdue)
1316    
1317    checkpoint59
1318    o pkg/exf:
1319      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1320        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1321      - move exf header files from lower_case.h to UPPER_CASE.h ;
1322        add missing cvs Header & Name
1323      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1324      - add namelist param. selectStressGridPosition, exf_monFreq
1325      - retire many _CLIM routines, and remove data.exf_clim
1326        + params moved to data.exf
1327        + climsst, climsss now handled by exf_set_gen, i.e.
1328          climss?period=0 refers to constant field,
1329          climss?period=-12 to monthly forcing
1330      - split up namelists in data.exf
1331    o pkg/seaice:
1332      - remove seaice_exch and seaice_exch_uv
1333      - remove superfluous exchange of theta
1334      - add myThid to seaice_budget_ocean/ice
1335      - add new interface for atmospheric wind forcing (C-grid only)
1336        + new routine
1337        + two new field (taux, tauy for stress over ice)
1338        + removed one global field (DAIRN) for C-grid case only
1339    o pkg/thsise
1340      - 2nd set of modifs for thsice adjoint in conjunction with exf
1341    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1342    
1343    checkpoint58y_post
1344    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1345      vertical diffusivity, similar to that in MOM4; turned on using
1346      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1347      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1348    o Added capability for 3D specification of background vertical diffusion
1349      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1350      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1351      "data" file that contains the 3D vertical diffusivity coefficients.
1352    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1353      - add code within pkg thsice to advect & diffuse sea-ice fields
1354      similar to (and will replace) what has been added in  seaice_advdiff.F,
1355      but: - conserving Mass, Heat & Salt.
1356           - better when using non-linear advection scheme (not yet fully tested)
1357           - can also be used in atmospheric set-up (for now, only the diffusion).
1358    
1359    checkpoint58x_post
1360    o IO option for global-file compact format:
1361      - add options when generating topology (utils/exch2/matlab-topology-generator)
1362      - add I/O capability (pkg/mdsio).
1363      - adapt utils/matlab/rdmds.m to read this format.
1364      for now long-line format not yet supported by pkg/mdsio (& exch2).
1365    o shelfice: add a few diagnostics
1366    
1367    checkpoint58w_post
1368    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1369      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1370      (and replace horiVertRatio in NH code).
1371      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1372                         and tutorial_plume_on_slope (sensitive to truncation)
1373    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1374      directly to drive seaice model (C-grid only)
1375    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1376     - reintroduce computation of wind from stress,
1377     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1378       mass points to avoid tau = 0
1379     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1380    o rdmnc.m: make it work with "global" files created with gluemnc
1381    o rdmnc.m : some improvements in dealing with singleton dimension
1382      (tested on all testreport mnc output files).
1383    o genmake2: disable pkg/profiles if netcdf test fails.
1384    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1385    o move call to cal_readparms up to make calendar parameters/variable available
1386      to all packages
1387    
1388    checkpoint58v_post
1389    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1390      useDynP_inEos_Zc tested.
1391    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1392    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1393      and portions thereof.  See read_cs.txt for description and examples.
1394    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1395      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1396      following the great-circle arc between those 2 points.
1397    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1398      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1399    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1400     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1401     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1402     - still needs work (not working with some options ; efficiency to improve)
1403       and serious testing.
1404     - use this scheme for temperature & salinity in 2 advection test exp.:
1405       advect_xy & advect_xz, respectively.
1406    
1407    checkpoint58u_post
1408    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1409    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1410    o testreport: add option "-skipdir" to skip some test.
1411    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1412      momentum calculation.
1413    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1414    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1415      remove checkpoint.F and the_correction_step.F (no longer used);
1416      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1417    o add option (linFSConserveTr) to correct for tracer source/sink due to
1418      Linear Free surface
1419    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1420    o pkg/thsice: fix reading mnc-pickups
1421    
1422    checkpoint58t_post
1423    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1424    o pkg/mdsio:
1425     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1426       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1427       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1428     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1429     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1430       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1431     - new S/R (to replace MDSWRITEMETA), which allows to write more
1432       informations (variable names, time ...) to meta files.
1433     - modify rdmds.m to give back the meta file content.
1434    o pkg/diagnostics: change vertical interpolation to be safer, and more
1435       flexible (define p-levels to interpolate to in data.diagnostics);
1436      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1437       diagnostic pointer.
1438    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1439    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1440    o fix multi-category seaice:
1441     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1442       SEAICE_MULTICATEGORY
1443     - fix short wave heat flux
1444    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1445       and allow to use EVP solver. Change forward lab_sea: test both EVP
1446       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1447    o Initial check-in of lab_sea adjoint
1448      (very similar to natl_box_adjoint/code_seaice)
1449      * used C-grid and EVP solver
1450      * used KPP, GM/Redi
1451      * uses inAdExact=.TRUE.
1452      * gradient checks fail for both ADM and TLM
1453        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1454        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1455        issue is related to forward mismatch between g77 an ifort
1456    o pkg/seaice: overhaul of thermodynamics
1457     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1458     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1459     - move a few global fields out of SEAICE.h into seaice_growth.F and
1460       make them 2D (FICE/QNETO/ ...)
1461     - remove FO (it is the same as QNETO)
1462     - introduce a few local fields to avoid modifying external fields such
1463       as atemp, etc.
1464    
1465    checkpoint58s_post
1466    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1467      changed exf_set_gen.F so that
1468        genperiod=0 means input file is one time-constant field and
1469        genperiod=-12 means input file contains 12 monthly means
1470    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1471      this affects truncation error ; generate new output file for exp. which
1472      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1473        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1474        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1475        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1476        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1477        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1478    o start implementation of deep-atmosphere and anelastic formulation
1479    o verification: remove 2nd copy of input files and use script "prepare_run"
1480      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1481    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1482    o profiles: fix for multithreaded case
1483    
1484    o diagnostics: rename few diags:
1485      s/'PRESSURE'/'RCENTER '/g
1486      s/'TICE    '/'oceFreez'/g
1487      s/'TAUX    '/'oceTAUX '/g
1488      s/'TAUY    '/'oceTAUY '/g
1489      s/'SWFLUX  '/'oceQsw  '/g
1490      s/DIFx/DFxE/g
1491      s/DIFy/DFyE/g
1492      and add few ocean-forcing diagnostics:
1493      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1494    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1495      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1496      as actual snow thickness.  It now refers everywhere to effective snow
1497      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1498    
1499    checkpoint58r_post
1500    o modifications to pkg/seaice/growth.F, which change results of
1501      lab_sea experiment: fixes pertain to melting snow over open water, to
1502      masking EVAP under sea ice, and to using the correct AREA variable for
1503      computations of EVAP, PRECIP, HSNOW, and GHEFF
1504    o add ability to read bathy, salt, and theta using MNC (off by def)
1505    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1506      both are turned off by default and do no change any results
1507    o seaice advection with pkg/thsice: a step toward the use of non-linear
1508      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1509    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1510      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1511      in natl_box (affects results @ truncation level: update output.txt)
1512    o multi-threading and IO:
1513      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1514      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1515        (needed to work with SingleCpuIO): tested in all verif. exp.
1516    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1517      affects the results (but none of the verification test uses this scheme).
1518    o Adding some pkg/diagnostics capability to pkg/seaice
1519      (will certainly be subject to changes)
1520    o ctrl: adding new control variables:
1521      lwflux, lwdown, evap, snowprecip, apressure, runoff
1522    
1523    checkpoint58q_post
1524    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1525      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1526      high_res_cube configuration by 4% on Columbia.
1527    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1528      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1529      dynamical allocation (seems to work in multi-threaded).
1530    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1531      single CPU io) so that TAF does not have to see EESUPPORT.h
1532    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1533    
1534    checkpoint58p_post
1535    o obcs: stop if obcs is used with useCDscheme = .true.
1536    o shelfice:
1537     - fix a sign error so that no slip at shelfice interface works
1538     - remove stop for combination non-hydrostatic code and shelfice. That does
1539       not mean, that the results are correct, but at least they are numerically
1540       stable
1541    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1542    o added adjoint exch routined for all exch*3d* routines
1543      and updated flow directives
1544    
1545    checkpoint58o_post
1546    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1547      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1548    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1549      and clean-up reading/writing of pickup files.
1550    o fix local version of read/write pickup (NH part) in rotating_tank/code
1551    o simplify EXCH interface:
1552     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1553     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1554    o added the regrid package
1555    o shelfice:
1556     - add a simple boundary layer scheme to reduce noise
1557     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1558    
1559    checkpoint58n_post
1560    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1561       local variable (not in common block).
1562    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1563      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1564      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1565        to work with SingleCpuIO.
1566    o add "_d 0" to real constant of pkg/cfc subroutines ;
1567       update exp. cfc_exemple & tutorial_cfc_offline output files.
1568    o multi-threading and IO:
1569      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1570        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1571      - barrier before and after reading.
1572      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1573      - avoid using MDS_WRITELOCAL for LAND pkg output.
1574      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1575        common-block variables ; Allows multi-threading with master-thread IO.
1576    o change default MAX_NO_THREADS from 32 to 4 ;
1577      and stop cleanly when MAX_NO_THREADS is too small.
1578    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1579    
1580    checkpoint58m_post
1581    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1582       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1583    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1584       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1585       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1586    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1587        add MITgcm_tutorials (= code + all the tutorials)
1588    o ecco, option to compute cost for total ssh (mean+anom)
1589    o consistent with addition of ptracer and ssh in pkg/profiles
1590    o profiles: adding ptracer and ssh
1591    o testreport: change multi-test output-file name
1592      (from output.txt.{name} to output.{name}.txt)
1593    o profiles: now ok for mutli-tiles case
1594    o seaice: add 4 parameters for different advection schemes for area,
1595      (effective) seaice thickness, enthalphy, and snow height. Their default
1596      is the standard parameter SEAICEadvScheme
1597    o calc_gw:
1598     - add cosFacU in zonal viscous flux (harmonic.visc.).
1599     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1600       of tutorial_plume_on_slope.
1601    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1602    o calc_gw: true flux-form, account for horizontal grid spacing.
1603      update rotating_tank results, but not plume_on_slope (affected at
1604      truncation level, 11 digits).
1605    
1606    checkpoint58l_post
1607    o calc_gw:
1608     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1609     - remove side-drag for now (need to fix it); update plume_on_slope results.
1610     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1611    o commit code to make SST/SSS weights spatially variable
1612      (based on either variable in-situ or variable initial T/S weights)
1613    o pkg/ecco:
1614      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1615        now based on horizontally varying weights wthetaLev, wsaltLev
1616      * cost_averagesflags now returns year indices in addition to day, month
1617      * sflux balance is performed on annual basis
1618        (sflxumm, sfluxmm2, bal_sfluxmm)
1619      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1620        including separate counting and multipliers
1621    o pkg/rbcs
1622      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1623    
1624    checkpoint58k_post
1625    o testreport:
1626     - always build in dir. "build" (if not there, mkdir build instead of building
1627       & running in input)
1628     - run in dir run (if it exists), in build otherwise.
1629     - call prepare_run (if input/prepare_run exists)
1630     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1631    o pkg/exf modifications to interpolation and rotation routines for more
1632       reasonable treatment of North Pole singularity: for tracers North Pole
1633       value is set to northernmost zonal-mean value, for zonal velocity it is
1634       set to zero, and for meridional velocity it is set to northernmost value.
1635    o pkg/exf/exf_check_range.F
1636     - add tile index to diagnostics and move stop statement to the very
1637       end of the routine.
1638    o pkg/diagnostics: (diagnostics_main_init.F)
1639      define title of isomorphic variables according to the current config.
1640    o pkg/thsice with pkg/seaice dynamics:
1641    - fix domain of computation (interior only, required for exf) and do exchanges
1642    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1643    o towards a standard way of dealing with multi-threading in MONITOR
1644      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1645    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1646       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1647    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1648    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1649    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1650       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1651    o tracer advection:
1652     - clean-up and simplify calc_common_factors.F
1653     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1654       advection subroutine (but still not used within DST advection S/R)
1655    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1656    
1657    checkpoint58j_post
1658    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1659      from file (collects calls previously in FORWARD_STEP)
1660    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1661    o adjoint store dir. adjusted accordingly
1662    o genmake2
1663      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1664    
1665    checkpoint58i_post
1666    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1667      on wind stress (SEAICEstressFactor defaults to 1.)
1668    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1669      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1670    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1671      on CS-grid: no longer loosing mass.
1672    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1673    o pkg/ggl90: fix sloppy output and fix a bug
1674    o pkg/seaice: added SEAICEuseEVPpickup parameter
1675      - Set to false in order to start EVP solver with
1676        non-EVP pickup files when using SEAICEuseEVP
1677      - fix sign error in diffusion in seaice_calc_rhs
1678    
1679    checkpoint58h_post
1680    * Modifications for bottom topography control
1681      o replace hFacC by _hFacC at various places
1682      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1683      o add non-self-adjoint cg2d_nsa
1684      o update autodiff support routines
1685      o re-initialise hfac after ctrl_depth_ini
1686      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1687    * Adding verification for 5x5 box (4-layer) bottom topography control
1688    
1689    checkpoint58g_post
1690    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1691       used for mean seasonal cycle, mean diurnal cycle); add an example
1692       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1693    o pkg/ggl90:
1694      - add parameter (minimum surface kinetic energy)
1695      - fix bug (avoiding division by zero)
1696    o couple pkg/thsice to pkg/seaice:
1697      - modify advection in seaice to accomodate new scalar fields to be advected
1698      - only muliDimAdection scheme work with seaice/thsice
1699      - mapping of thsice-variables to seaice-variables, back and forth
1700      - does not break the verification experiments, but does not give the
1701        desired results either
1702    o pkg/seaice
1703      - make (default) second order advection a bit less confusing?
1704    
1705    checkpoint58f_post
1706    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1707      to pkg/seaice):
1708      - new routines thsice_map_exf and thsice_get_exf provide the interface
1709      - add an additional formal parameter to thsice_solve4temp
1710    o pkg/exf:
1711      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1712      - correct Stefan-Boltzmann constant
1713      - new parameter for longwave surface emittance
1714      - separate some stuff from exf_bulkformulae into new routines  
1715        exf_radiation, exf_wind
1716      - add new parameters and constants: longwave emissivity for ocean, ice
1717        and snow, evaporation parameters over ice
1718      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1719        either wind from stress or stress from wind
1720    o pkg/thSIce:
1721    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1722    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1723       and THSICE_CALC_THICKN
1724    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1725    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1726      to make debugging easier.
1727    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1728    o pkg/bulk_force:
1729      - clean-up comments and parameters ;
1730      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1731    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1732      generate new output for test-experiment: aim.5l_cs.thSI
1733    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1734      testreport accordingly
1735    
1736    checkpoint58e_post
1737    o SEAICE_CGRID adjoint done
1738    o R_STAR adjoint implemented.
1739      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1740      * need to sort out init. of h0facc, etc.
1741    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1742      to be able to use it in pure forward.
1743    
1744    checkpoint58d_post
1745    o upgrade simple test-experiment to tutorial example:
1746     step.1: duplicate the experiment and (step.2) will remove the old copy.
1747      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1748      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1749      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1750      tutorial_global_oce_biogeo    <- copy of dic_example
1751      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1752      tutorial_plume_on_slope       <- copy of plume_on_slope
1753      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1754      tutorial_global_oce_optim     <- empty for now (David ?)
1755      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1756     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1757    o correct a sign problem in cost_scat.F
1758    o obcs and ptracers: fix boundary conditions for advections schemes
1759      with larger stencil
1760    o thsice adjoint: start
1761    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1762      completeness
1763    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1764      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1765    o ptracers adjoint:
1766      * avoid extensive recomputatations
1767      * fix missing re-init. of gptr (missed by TAF)
1768    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1769      me to turn off the excessive output to STDOUT that this package produces
1770    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1771      and add those terms in Vector-Invariant formulation.
1772    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1773      if the control period (xx_hfluxperiod etc) is 0
1774    o in profiles pkg, clean routines and fix details
1775    o in ecco pkg, reading ssh data:
1776      fix problem in case the model does not start at iter0=0
1777    o fix mnc-pickup/restart for ptracers
1778    o new package prifiles:
1779      code to compute profile-based cost by Gael Forget
1780      (modifs in ecco, ctrl, autodiff)
1781    o Benign bug fix in initialization (spotted by M. Mazloff) of
1782      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1783    
1784    checkpoint58c_post
1785    o adjoint: finish NLFS adjoint and provide reference output in
1786      verification/global_ocean.90x40x15/results_ad_nlfs
1787    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1788      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1789      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1790      with SEAICE_CGRID defined.
1791    o move calendarDumps from "data" to "data.cal" and clean-up the code
1792      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1793    o add useEXF & useCAL flags (for now, set in hard-coded way)
1794    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1795      (were missing in NH mode, and wrong in quasihydrostatic mode).
1796      waiting for Chris updated version of calc_gw to add those CALLs.
1797    o fix bug in quasihydrostatic S/R ;
1798      add a test for this option: global_ocean.90x40x15.qshyd
1799    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1800      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1801    o add on/off flag useOffLine for package OFFLINE
1802    o seaice:
1803      - modify advection so that it works also on the C-grid
1804      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1805        problem in multi-tile runs with C-grid
1806      - add flags for clipping ice velocities and/or masking solver forcing
1807      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1808        C-grid solver
1809      - added a few comments to seaice_diffusion.F
1810      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1811        are now exclusive)
1812      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1813        required re-ordering the code a little:
1814       + make DAIRN global variable (defined in SEAICE)
1815       + move computation of the viscosities eta and zeta into a new separate
1816         routine (because I need to recompute them in seaice_ocean_stress.F)
1817    
1818    checkpoint58b_post
1819    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1820      update output.txt of exp. aim.5l_cs.thSI
1821    o various mnc cleanups and improvements:
1822      + shrink lookup tables by factor of ~4
1823      + better error reporting when running out of lookup space
1824      + able to handle longer path/file names (up to 500 chars)
1825    o adjoint:
1826      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1827      - TBD: "hidden" mom_vecinv recomp. in dynamics
1828    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1829     (allow to differentiate between forcing components using new integer flags:
1830      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1831     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1832    o ecco
1833      - enable trend removal from SSH anomaly obs.
1834    o adjoint
1835      - a fix for PmEpR when #undef EXACT_CONSERV
1836      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1837      - try to fix "hidden" recomp. in forward_step for NLFS
1838        (NLFS seems broken sometimes after I checked it in)
1839    o seaice:
1840     - add c-grid version of the dynamic solver:
1841       + three new routines that are the c-grid substitute lsr, dynsolver
1842         and ostres
1843       + put a few fields that were local to dynsolver into global common
1844         blocks, so that I can move the computation of stresses etc into
1845         seaice_lsr (saves coding but may break the adjoint).
1846     - replace more hardwired parameters by runtime parameters
1847     - add ice masks that mask the rhs of the implicit solvers where there
1848       is no ice (commented out in seaice_dynsolver, because i am not sure
1849       if this works properly), eventually this should replace the clipping
1850       of ice velocities in seaice_dynsolver to +/-40cm/s.
1851    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1852      include it only where its needed
1853    o move balancing of fluxes before the call of external_forcing_surf
1854    o seaice:
1855      - correct units of turning angles (now they are really in degrees)
1856      - move computation of GWATX/Y out of main routine into dynsolver
1857      - initialize GWATX/Y in seaice_init
1858    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1859      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1860    o seaice: add runtime flags for turning angles (default to zero)
1861    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1862      and trend from exf forcing and ctrl control adjustments
1863    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1864      (since checkpoint57x_post)
1865    o change the default rotation period to 86164.s = the Earth rotation
1866    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1867      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1868    o seaice advection: add code for choosing between the default (2nd order
1869      central differences) and multiDim advection schemes provided by
1870      pkg/generic_advdiff
1871    o seaice:
1872      - removed all references to SEAICE_GRID.h fields from
1873        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1874        (cubed-sphere configuration will change a little)
1875      - grid computations in seaice_init are obsolete now.
1876      - cleaned up code a little so that is easier to read (hopefully).
1877      - added new (better?) discretizations of default advection and diffusion
1878        (turn on with SEAICEuseFluxForm)
1879      - replace 1 in 3d global fields by kSurface in growth.F
1880      
1881    checkpoint58a_post
1882    o seaice:
1883      - bug fix in advect.F
1884    o shelfice:
1885      - separate shelfice load anomaly from pload (breaks with time
1886        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1887        Its default is 0., but it may be computed more cleverly from (unknown)
1888        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1889        done offline. A good approximation of the pressure load anomaly is
1890        necessary to avoid large initial adjustment processes underneath
1891        deep-reaching shelfice.
1892      - small fix in ISOMIP shelfice_thermodynamics
1893      - add more sophisticated thermodynamics of Hellmer (1989), this is
1894        now the default
1895      - give a few constants more intuitive names
1896    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1897      if bulk formulae are used in long integration (especially EmPmR). Turn
1898      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1899      if balancePrintMean, the imbalance that is substracted is printed to
1900      STDOUT.
1901    o fix bug (typo) in obcs_apply_eta.F
1902    o add a new package shelfice which enables us to model the circulation
1903      underneath shelf-ice with draughts of hundreds of meters.
1904     - works
1905     - to do: + include improved thermodynamics
1906              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1907                instead of new field kTopC
1908              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1909                instead of new field R_shelfIce and new code in ini_depth.F
1910                and ini_mask_etc.F?
1911              + adjust vertical mixing schemes?
1912    o seaice pkg:
1913     - add a cpp-flag to include a simple formula for a salinity dependent
1914       freezing point of sea water at the surface
1915     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1916       meridional stresses are now different (and hopefully correct)
1917    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1918       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1919       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1920    o pkg/diagnostics: add options and parameters for regional-statistics
1921       diagnostics ; define regions by reading a region-mask from a file
1922       (might add other options later)
1923    o pkg/bulk_force:
1924     - add option and parameters to use AIM surface-flux formulae.
1925     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1926       others forcing fields (defined in PARM05, parameter file "data") are loaded
1927       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1928     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1929     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1930     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1931       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1932     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1933    
1934    checkpoint58
1935    o add "--embed-source" option to genmake2 which, when the supporting
1936      tools can be compiled (as determined by genmake2) will turn on the
1937      embed_files package which then embeds the entire MITgcm source code
1938      (*.[fFhc] + Makefile) used for the build within the executable
1939      - requested by CNH but off by default
1940      - adds a paltry <9MB to the mitgcmuv executable in most cases
1941      - only writes the output when useEMBEDSRC in eedata is true
1942    o clean up 3-dim. relaxation codes:
1943      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1944      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1945      * Thanks to Tom Haine for testing!
1946    
1947    checkpoint57z_post
1948    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1949      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1950    o fix the pickup behavior for obcs in combination with ptracers
1951    o fix a bug in ptracers_external_fields_load
1952    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1953      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1954    o transfered surface NH pressure to eta field (if exactConserv).
1955    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1956         and update lab_sea output.txt file.
1957    o completing 3-dim. relaxation code: additional term
1958         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1959      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1960      * At compile time, in "EXF_OPTIONS.h" set
1961          #define  ALLOW_CLIMTEMP_RELAXATION
1962          #define  ALLOW_CLIMSALT_RELAXATION
1963      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1964          tauThetaClimRelax3Dim = 15552000.0,
1965          tauSaltClimRelax3Dim  = 15552000.0,
1966      * 3 cases:
1967          1) Use a constant-in-time 3-dim. field
1968          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1969          3) Real-time relax. to time-evolving prescribed field
1970    o Adding Laplacian-type smoothness constraint on
1971      initial and boundary (forcing) controls (ic, bc)
1972      * enable at compile-time via
1973        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1974      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1975      * Absolute scale somewhat unclear so far
1976      * no area weighting was included since no other cost term does so far
1977    
1978    checkpoint57y_post
1979    First step for a NLFS adjoint
1980    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1981    o new init. routines for calc_r_star, calc_surf_dr
1982    o still need to deal with ini_masks_etc
1983    o testreport seemed happy
1984    checkpoint57y_pre
1985    
1986    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1987    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1988    o add new offset feature to offline pkg (plus minor cleanup)
1989    o cfc fixes for final year of integration
1990    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1991      be in GCHEM_OPTIONS).
1992    
1993    checkpoint57x_post
1994    o fix testreport Pb in multiple test experiment.
1995    o cleanup our namelist syntax in verification:
1996      - make it more F95 standards compliant (some work still needed)
1997      - allows the vast majority of our tests to work with gfortran
1998    o Non-Hydrostatic:
1999     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
2000     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
2001    o Allow to apply AB on T,S rather than on AB(gT,gS):
2002     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
2003     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
2004       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
2005     - need a "clever" read_pickup to restart from the other AB formulation
2006    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
2007    o remove some unused variables (reduces number of compiler warnings)
2008    o adjoint
2009      * Disable useVariableViscosity for adjoint for time being
2010        (there are a number of extensive recomputations)
2011      * Initialize certain variables needed for adjoint
2012    
2013    checkpoint57w_post
2014    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
2015                 fix the singleCpuIO RS version of MDSWRITEFIELD
2016       and add a WARNING if using globalFiles=T with multi-processors.
2017    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
2018      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
2019    o tracer advection scheme:
2020      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
2021       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
2022       was not very convenient).
2023      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
2024       (further tests needed for the implicit DST & Flux-Limiter schemes).
2025    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
2026      and sRef for convenience, handy, when you want to initialize
2027      ptracers in a large domain with a constant non-zero value. Also,
2028      untangle ptracers_init.F a little.
2029    
2030    checkpoint57v_post
2031    o change dome exp. to use variable viscosity in side-drag terms.
2032    o remove all the files from the cfc_offline test since they are now
2033      incorporated into tutorial_cfc_offline which has been producing
2034      identical results for a few days of testing
2035    o add new parameter: sideDragFactor to enable half-slip-side BC
2036      and change side-drag S/R to use viscosity from mom_calc_visc
2037      (can switch back by setting sideDragFactor=0.); affects results at
2038      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
2039       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
2040    o vorticity & strain are now computed without masking, to account for
2041      no-slip-side BC in variable viscosity calculation ; mask is applied
2042      anyway later on, before computing advection/coriolis terms.
2043    o modify exp4 to test new obcs support for reading from external files
2044      and for passive tracers
2045    o fix behavior of ptracers_monitor when monitor output is written to a
2046      netcdf-file; still not independent of monitor.F (writes in the same
2047      file).
2048    o change default value of tRef (put a uniform, meaningful value for ocean
2049      & atmos) and initialize sRef (was missing, as Martin mentioned).
2050    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
2051      to be proportional to enstrophy dissipation length.  Thus,
2052       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
2053      This is now consistent with Smagorinsky and with the manual.
2054    
2055    checkpoint57u_post
2056    o OBCS and PTRACERS: add open boundary support for passive tracers
2057      - either use homogenous (pseudo) v.Neumann conditions or prescribe
2058        OB-values from file; this is not different from the way theta and salinity
2059        are treated
2060      - however, Orlanski-radiation conditions are not supported, and the model
2061        will stop if you use pTracers and Orlanski at the same time.
2062      - beefed up the rountine obcs_external_fields_load: now only those open
2063        boundary values are overwritten with values from files for which there
2064        are really files, otherwise the OB-fields remain untouched. This makes
2065        it possible to use different OBs at different ends of the domain (as
2066        with EXF)
2067    o reduce number of exch calls in shap_filt (s2).
2068    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
2069      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2070    
2071    checkpoint57t_post
2072    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2073    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2074      same truncation, independent of the face number: affects affects several
2075      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2076    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2077      note that biharmonic viscosity + no-slip was not tested in any experiment.
2078    o fix bug in non-linear free-surf side-drag ; generate new output for
2079      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2080    o make mnc honor the writeBinaryPrec flag for most kinds of output
2081    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2082    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2083      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2084    o add brackets in multi-terms sum to get same truncation, independent of
2085      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2086      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2087    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2088      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2089      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2090      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2091      Suggested values of viscosity parameters found in mom_calc_visc.
2092      Many new viscosity diagnostics available.
2093    
2094    checkpoint57s_post
2095    o Add clearing-house for viscosity calculations, mom_calc_visc and
2096      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2097      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2098      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2099      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2100      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2101      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2102      ViscAhStrain and viscAhTension are now retired.
2103    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2104    o In response to JMC's bug report, genmake2 now ignores any soft-links
2105      that it finds in the *current* directory when searching for files.
2106      Soft-links found in any other source directories will still work as
2107      they did before.
2108    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2109      a C routine to unlimit the stack size
2110    o mnc-ify pkg/aim snapshot vars
2111    o mnc-ify pkg/land as requested by Daniel
2112    o various changes to mnc including:
2113      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2114      - output can now be grouped so that all files within a group
2115          change the ITER portion of their names in lock-step together
2116      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2117          and works with both EXCH1 and EXCH2 (but needs more testing)
2118      - writing works for all verification test cases w/ g77 on Linux
2119    
2120    checkpoint57r_post
2121    o make MNC variable initialization happen earlier
2122    o add diagnostics for (almost) each term of the momentum Eq.
2123    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2124    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2125    o remove MINIMAL_TAVE_OUTPUT option ;
2126      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2127    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2128      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2129    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2130    o add time-dependent SST, SSS control
2131    o cost terms in ecco/ modularized (new cost_generic.F)
2132    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2133    o new infrastructure for seaice model vs. obs misfits in seaice/
2134      * driver from the_main_loop.F is seaice_cost_driver.F
2135      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2136      * gradient check in Exp. 6a of natl_box_adjoint/
2137    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2138      (see README file)
2139    
2140    checkpoint57q_post
2141    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2142    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2143      - bug was reported by Jean-Michel and Ian Fenty
2144    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2145      update exp. cpl_aim+ocn output.
2146    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2147      Needed for high-res. runs with large global files
2148      to be able to limit tapelev size
2149    o Changed some tests for adjoint:
2150      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2151      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2152      * global_ocean.90x40x15/ back to default 3-level checkpointing
2153    o Modifications to enable scripted COMMON to MODULE conversion
2154      * verification/OpenAD/code/ has necessary scripts and description;
2155      * converts, compiles and runs successfully;
2156    
2157    checkpoint57p_post
2158    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2159    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2160      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2161    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2162    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2163      (was already the case for dissipation with mom_vecinv,
2164       and also the case for grad.PhiHyd when staggered-timeStep)
2165      This will allow to put dissipation out-off the AB time-stepping.
2166     Unfortunately, affects truncation error. Update output of exp. that "fails"
2167      (cg2d matching number) and leave the others for later: front_relax(10),
2168      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2169      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2170    
2171    checkpoint57o_post
2172    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2173      (2) its ready to be documented during the 20050801 DocFest
2174    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2175      for ideal_2D_oce and lab_sea on linux_ia32_g77
2176    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2177      in global1x1_tot/code_seaice_adj to access indices 32, 33
2178      (worth another tag)
2179    
2180    checkpoint57n_post
2181    o adding precip control xx_precip 32
2182    o adding swflux control xx_swflux 33
2183    o Replacing 10 forcing penalty cost routines by 1 generic.
2184    o Implementing partitioning in time-mean and variable adjustment
2185      for atmos. state.
2186    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2187    o in natl_box_adjoint:
2188      * updated exp 1 to 10
2189        (but does not have time-mean vs. variable split results yet)
2190    o updated global1x1/*_seaice_adj/
2191      to incorporate latest changes
2192    o enable useSingleCpuIO for mdsio vector routines
2193      (applies in particular to tapelev I/O)
2194    o removed inefficient K-loop in all active_file*control*.F
2195    
2196    checkpoint57m_post
2197    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2198      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2199    o pkg/exch2: filling of face-corner halo regions is optional
2200      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2201    
2202    checkpoint57l_post
2203     tag before updating tutorials (pre-release-2)
2204    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2205       for output and interpolation of input fields onto model grid)
2206    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2207       Affects results of exp. rotating_tank ; update output.txt.
2208    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2209          and taking the square quantity and/or using a fraction-weight field.
2210    o fix aim_diagnostics_init.F mate numbers.
2211    o add mnc output capability to diagnostics/diagstat and update
2212      our cvsignore files for the ACSII output generated
2213    
2214    checkpoint57k_post
2215    o lab_sea now uses diagnostics package and provides a suite of
2216      new EXF diagnostics output.
2217    
2218    checkpoint57j_post
2219    o exf
2220      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2221        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2222        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2223      * extended diagnostics output
2224        - now includes all EXF variables
2225        - hs, hl moved to common block
2226        - separate S/R for diagnostics, called after ctrl vector is added
2227        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2228        - EXFqnet contains true Qnet (i.e. includes qsw)
2229      * updated verif. lab_sea, global_with_exf
2230      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2231        to ensure that diagnostics sees a true EXFqnet
2232    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2233    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2234      several times with different frequencies.
2235    o mnc-ify the thsice package as requested by Daniel Enderton
2236      - the monitor--MNC output needs work
2237      - many attributes need to be added (most are currently blank)
2238    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2239      - many attributes need to be added (most are currently blank)
2240    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2241    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2242    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2243      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2244         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2245    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2246     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2247    
2248    checkpoint57i_post
2249    o Diagnostics package was changed: diagnostic allocation is now deactivated
2250      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2251    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2252      add 1rst Order upwind vertical Shear.
2253    o add a quick fix for A/B checkpointing in OFFLINE mode
2254    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2255      end-run around the C/Fortran linking horror in eesup/src/timers.F
2256    o added pkg/runclock: allows user to terminate run based on wall clock
2257    o added non-hydrostatic scaling parameter: nh_am2
2258    o pkg/my82: futile attempt to make results compiler-independent by adding
2259      some "_d 0", etc. no effect.
2260    o for mnc output, fill the 'T' coordinate var with myTime and create a
2261      separate 'iter' variable for iteration count
2262    o pkg/diagnostics:
2263      add new capability: output of Global/Regional & per-level statistics ;
2264      tested against monitor output (including land & thSIce) on various exp.
2265    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2266    
2267    checkpoint57h_done
2268      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2269      data.diagnostics, data.gchem, data.ptracers) is done.
2270    
2271    o pkg/diagnostics: prepare for Global/Regional statistics.
2272      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2273    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2274      and rename it: DIFFERENT_MULTIPLE
2275    
2276    checkpoint57h_post
2277    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2278    o pkg/diagnostics: change output frequency, now in seconds (instead
2279      of Nb of iterations). This requires to change data.diagnostics.
2280    checkpoint57h_pre
2281    
2282    o in mnc, let the user create the output dir if both mnc_outdir_date
2283      and mnc_outdir_num are false
2284    o add fflags() to pkg/diagnostics which allows one to specify, on a
2285      per-file basis, the file precision [default behavior is unchanged]
2286    o added diagnostics to pkg/kpp, including computation of mixed layer
2287      depth based on a temperature/density criterion
2288    o updated verification/natl_box to test the new pkg/kpp diagnostics
2289    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2290    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2291    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2292      not mnc -- this mistake was found by JMC and is now corrected
2293    
2294    checkpoint57g_post
2295    o add Adams-Bashforth 3rd Order time stepping:
2296      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2297      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2298    checkpoint57g_pre
2299    
2300    o make lambda[Theta,Salt]ClimRelax spatially varying
2301      (default remains spatially uniform constant based on tau)
2302    o added new control variables
2303      * init. uVel, vVel, etanN
2304      * lambda[Theta,Salt]ClimRelax
2305    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2306      (suggested by G. Forget)
2307    
2308    checkpoint57f_post
2309    o add parameter "baseTime" = model base time = time at iteration zero
2310      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2311      account for baseTime shift
2312    o move Coriolis arrays from PARAMS.h to GRID.h
2313    checkpoint57f_pre
2314    
2315    o mnc-ifying the seaice package
2316    o introduced an alternative length scale calculation for use in the limiting
2317      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2318    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2319    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2320      as well as grad(vort3).  Made it compatible with both approximate form
2321      for the cubed sphere and full form of these gradients.  Added flag
2322      useFullLeith to select between approximate and full form.  
2323    o add "d0" in getcon.F to reduce differences between compilers/platforms
2324      update output.txt of exp. fizhi-gridalt-hs
2325    o change port_rand funtion to allow to set the seed.
2326    o fix obscure MNC bug involving conversion between reals and integers
2327      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2328        new version is now more standards-compliant
2329    o adjoint-related modifications
2330      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2331      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2332      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2333    
2334    checkpoint57e_post
2335    o Adding eddy stress controls a la Ferreira et al.
2336    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2337    
2338    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2339      update output.txt of exp. fizhi-gridalt-hs
2340    o add more "Z" dimensions and associated coordinate vars to MNC
2341    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2342    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2343      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2344      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2345      months and years.  Requires pkg/cal.
2346    o diagnostics: add pickup functionality
2347      - off by default for backwards compatibility
2348      - current version only uses MDSIO -- MNC will be added
2349    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2350    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2351    
2352    checkpoint57d_post
2353    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2354    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2355      output from the diagnostics package
2356    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2357    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2358      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2359    o add coordinate variables to the MNC output from the diagnostics package
2360    o change MNC-flags default value: true when useMNC=TRUE
2361    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2362      the ability (off by default) to read the grid information using MNC
2363    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2364    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2365    o do snap-shot diagnostics at the middle of the time-interval (instead of
2366      at the end).
2367    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2368      new test for AIM with thSIce + slab-ocean
2369    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2370    o move state variable diagnostics to the beginning of the time step ;
2371      (note: still needs some work specially for snap-shot diagnostics)
2372      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2373    
2374    checkpoint57c_post
2375    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2376    o generate new output.txt files on faulks with g77 & the new -ieee option
2377    checkpoint57c_pre
2378    
2379    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2380      update output.txt of exp. global_ocean.90x40x15
2381    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2382      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2383    o add saltFlux(+File) forcing capability with periodicExternalForcing
2384    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2385    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2386    o improvements for the MNC output from DIAGNOSTICS:
2387      - correct handling of the unlimitied dimension
2388      - all dims now have associated coordinate variables
2389      - variables located at U, V, and Corner ("Z") points are now written
2390        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2391        *all* data points are output
2392    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2393    o added pkg/seaice/seaice_monitor.F
2394    o mdsio_readfield.F can now read files visible only to master MPI process.
2395    o pkg/seaice: some test code for ice-modified ocean stress
2396    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2397      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2398      spurious negative numbers for precipitation and humidity.  Will cause
2399      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2400    o pkg/ctrl/
2401      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2402        May be enabled via doPackDiag
2403      *  introduce z-scaling of
2404         + gradient (doZscalePack) and
2405         + control (doZscaleUnpack)
2406    o pkg/mdsio/
2407      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2408      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2409    
2410    checkpoint57b_post
2411    o simplify options in diagnostics_fill arguments (remove weird combinations)
2412    o fix MNC coordinate variables so that they now contain per-face index
2413      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2414      general, EXCH2 grids are only aligned to a "local" coordinate system
2415    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2416    o Implement instantaneous output within pkg diagnostics:
2417      setting a negative frequency in data.diagnostics produces
2418     "snap-shot" output (as opposed to time-average if freq > 0)
2419    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2420      NOTE: change ptracer diagnostics name: use 2 characters to work with
2421            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2422    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2423      becomes the coordinate variable for the 'T' dimension
2424    o add CF-style coordinate variables to MNC
2425      - just a first cut:  numbers are meaningless on the cubesphere and
2426        missing along the T axis but otherwise it works!
2427    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2428    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2429    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2430      this is based directly on what the model compute, so that the content of
2431      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2432    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2433    o clean up build options files for SunOS, in particular
2434      - remove -traditional from xmakedepend
2435      - change -xarch=v9 to -xarch=native for f77
2436      - restore use of make (not gmake)
2437      - add CC=gcc if using g77
2438    o changes per discussion of AM, JMC, & EH3 today:
2439      - move redundant "grid" variables out of "state" -- in preparation of
2440        creating proper CF-style coordinate variables and in recognition
2441        that any/all grid variables can be easily copied (eg. w/NCO) from
2442        the grid files into any of the other NetCDF files
2443      - *always* output grid variables with MDSIO (this will eventually be
2444        changed)
2445      - output MNC grid file if useMNC is true
2446    o every instance of _END_MASTER() has been found and replaced with
2447      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2448      preprocessors
2449    o re-arrange diagnostics pkg initialisation:
2450     - allow each package to extend the available diagnostics list
2451     - add some checking and fix small problems (multi-threaded, ...)
2452     - new S/R diagnostics_fill (replace fill_diagnostics):
2453       look through the short list of active diag. (instead of the long list)
2454       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2455    
2456    checkpoint57a_post
2457    o this set of changes restores TAMC compatibility
2458      tested for global_ocean.90x40x15 adjoint on trough
2459      (what a pain)
2460    
2461    checkpoint57a_pre
2462    o some modifs in tools/build_options for sunos
2463    o call ctrl_pack for ctrl at end for optimcycle=0
2464    
2465    checkpoint57
2466    o add horizontal bi-harmonic viscosity for vertical velocity
2467      - new parameter viscA4W (defaults to viscA4)
2468      - affects only non-hydrostatic code
2469      - to be done: no-slip lateral boundary conditions
2470    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2471    o implement Implicit Vertical advection for pTracers
2472    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2473      (implemented also for implicit vertical diffusion & advection)
2474    o OBCS: extend application of tracer open boundary conditions
2475      to a strip beyond the boundary of width Olx/Oly
2476    o add call monitor to TAF set of required calls (flow directives)
2477      and include in natl_box_adjoint
2478    o untangle a few ifdefs related to cost, ctrl, autodiff
2479      untangel a few ALLOW_ECCO_OPTIMIZATION
2480    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2481      (theta2, salt2 in ecco_cost_weights)
2482    
2483    checkpoint56c_post
2484    o OBCS as control variables
2485      - update ctrl_ad_diff.list, obcs_ad_diff.list
2486      - remove balance of obcs controls from default
2487      - fix index bug nobcs in ctrl_init
2488      - fix dummy fields filen in ctrl_pack
2489      - add dummy weights for obcs
2490    o lsopt: comment out fort.94 output
2491    o optim:
2492      - remove unnecessary header files
2493      - adjusted namelists
2494      - add xerbla.F to Makefile
2495    o exf:
2496      - multiple modifications of exf_check_range
2497      - unit change in exf_init_runoff from [m/year] to [m/s]
2498    o mdsio:
2499      - i/o-vector change debugLevel from debLevA to debLevB
2500    
2501    checkpoint56b_post
2502    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2503      is called from DO_THE_MODEL_IO
2504      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2505      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2506      - clean up PTRACERS_WRITE_TIMEAVE a little
2507    o add another verification experiment that tests both the cfc-pkg and
2508      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2509      reactive tendencies treated inline with regular timestepping
2510    o testreport previously did a lousy job of comparing small numbers, so
2511      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2512      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2513      testreport.
2514    o ptracers_monitor: bug fix for MPI
2515    
2516    checkpoint56a_post
2517    o GCHEM: finish reorganizating the package
2518      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2519        (introduces another 3D-array for each passive tracer, but only if
2520        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2521        gchemTendency is not needed because the timestep is done separately)
2522      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2523      - GCHEM is now---more or less cleanly---separate from PTRACERS
2524      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2525        so clear to me how that should be done in a general way.
2526    o CFC: improve formatting of output in CFC_ATMOS
2527    o PTRACERS:
2528      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2529        that ALL experiments with ptracers enable can be checked. This makes
2530        GCHEM_MONITOR obsolete.
2531      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2532        monitorFreq
2533      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2534    o add PTRACERS (PTR0[1-5]) to testreport output
2535    o exf_check_range:
2536      * default changed to .TRUE.
2537      * will check values for niter0 if debLevA, every timestep if debLevB
2538      * STOP in exf_check_range if 'out of range'
2539      * range chosen generous to allow for potential extema
2540      TBD: a version with stricter range
2541           permitted range would be runtime parameters
2542    o GMredi:
2543      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2544      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2545      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2546    o GCHEM:
2547      - move call to GCHEM_FORCING_SEP, so that it is now called before
2548        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2549      - introduced a useGCHEM runtime flag and applied it everywhere.
2550      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2551        this flag is now only visible within GCHEM-pkg routines.
2552      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2553        be replaced by a 3D array that is computed before thermodynamics; for
2554        this, the tracer ID iTracer had to be included into the parameter list
2555        of ptracers_forcing
2556      - set up forward_step to call gchem_forcing, that will replace
2557        gchem_forcing_int in ptracers_forcing
2558      - cleaning up
2559    o small cleaning of exch2: remove files that are also in eesupp/src
2560    
2561    checkpoint56
2562    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2563    o mnc: cleanup "full" files--fixes out-of-memory problem
2564    o ECCO-GODAE
2565      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2566      * fully merged and updated from SIO code
2567        windstress sign change affects
2568        - exf_inscal_[u/v]stress
2569        - sign of xx_tau[u/v] adjustments
2570        - signs in cost_scat
2571      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2572      * natl_box_adjoint updated and compressed
2573      * 2-level checkpoint switch added
2574        (tested in EXP. 1 of natl_box_adjoint)
2575      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2576    o SVD
2577      * first complete, non-hacked version for SVD calculations
2578      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2579        performed via direct access files admtlm_vector.it????
2580        (via ctrl_[un]pack)
2581      * optimcycle is used for ARPACK iteration counter
2582        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2583      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2584        and add linear transforms where necessary
2585      * controls are initial/final SST, SSS (can be extended; need to check
2586        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2587    o mdsio: filename info to both stderr, stdout
2588    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2589      from sign change
2590    
2591    checkpoint55j_post
2592    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2593      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2594    o add consistent build directories and .cvsignore files to verification
2595    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2596    o make all subroutines 30 or less characters in length for certain older
2597      compilers to work (a thorough search only turns up two routines in
2598      pkg/ptracers)
2599    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2600      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2601    
2602    checkpoint55i_post
2603    o change arrays for total vertical diffusivity (2.D if explicit,
2604      3.D if implicit) ; each ptracer uses its own background value.
2605    o added mnc/NetCDF output capability to ocn_compon_interf
2606      - added bits to verification/cpl_aim+ocn so that it can run on
2607        ITRDA and other clusters without the mpirun "-wd" option
2608    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2609      configuration
2610    o give MNC the ability to create additional files rather than
2611      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2612      - the default is just less than 2GB which is a practical limit
2613        on many systems
2614    o Compute the non-local term using either KPP vertical diffusivity (=default)
2615       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2616    
2617    checkpoint55h_post
2618    o add verification test "vermix"
2619    o remove all the *_ioinc flags and replace with the single global
2620      outputTypesInclusive flag
2621    o allow to set a vertical profile of vertical diffusivity for T & S
2622    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2623    o useMNC moved from data.mnc to data.pkg
2624    
2625    checkpoint55g_post
2626    o Renaming carbon AD experiments to comply with testreport conventions
2627    o Updating adjoint of Held-Suarez hs94.1x64x5
2628    o Fixing directives for non-ECCO forward_step, after ECCO directives
2629      have been fixed to avoid recomp. of do_oceanic_phys
2630      Works well for global_ocean.90x40x15,
2631      but recomp. issue remains for carbon
2632    o Updating adjoint output for natl_box_adjoint after
2633      pkg/ecco has been modified (see taga c55d_post)
2634    
2635    checkpoint55f_post
2636    o rename to timeave_init_fixed
2637    
2638    checkpoint55e_post
2639    o some delicate re-shuffle of store directives to avoid one
2640      extra call of do_oceanic_physics
2641      affects ecco_the_main_loop.F, do_oceanic_physics.F
2642      checkpoint_lev1_directives.h
2643    o NB: this may break global_ocean adjoint temporarily,
2644      but it is clear how to fix it. Will do later, need this now.
2645    
2646    checkpoint55d_post
2647    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2648    o ecco_cost_weights is modified to 1x1 runs
2649    o modifs to allow observations to be read in as
2650      single file or yearly files
2651    o enable to read exf forcing fields as either
2652      single file or yearly files (flag useExfYearlyFields)
2653    checkpoint55d_pre
2654    
2655    o switch between 2-level and 3-level checkpointing
2656    o add ability of MNC to write local and "partial" (eg. 2D slices where
2657      the full 3D field is never actually stored) arrays to NetCDF files
2658      with the correct (that is, the complete multi-dimensional) set of
2659      array indicies
2660      - used in mom_vecinv() to write the diagFreq output
2661      - tested (demonstrated) in verification/aim.5l_cs
2662    o further mnc-ification
2663      - add verification/lab_sea to the list with mnc setups
2664      - fix undefined mnc v-names in cd_code
2665      - add kpp to mnc output (both snapshot and timeave)
2666    o non-hydrostatic code
2667      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2668        in calc_gw.F
2669      - defaults to viscAh
2670      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2671        friction or Leith) in non-hydrostatic mode, as long as there is
2672        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2673    o pkg/cost
2674      extend simple cost functions to treat time mean quantities
2675      (T,U,V) via cost_accumulate_state from cost_tile
2676    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2677        be 2 times larger than the minimum size the advection scheme requires.
2678        now get a perfect conservation of salt in advect_cs test-exp (updated)
2679    o GGL90 (Gaspar's TKE mixed layer)
2680      - add horizontal diffusion of TKE, requires exchanges in
2681        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2682        default. In OPA there is no horizontal diffusion of TKE but the
2683        mixing coefficients are computed from a horizontal average of TKE of
2684        6 points or so. I think that diffusion has a little more physical
2685        justification.
2686      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2687        was in vain)
2688      - mask tke-variable in ggl90_init
2689    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2690    o fix biharmonic diffusion on CS-grid.
2691    o more obcs stuff
2692      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2693        for reading boundary values. This routine is called from
2694        obcs_prescribe_read
2695      - updated obcs_check
2696      - changed sponge layer relaxation parameter units for days to seconds
2697      - turned off sponge layer by default
2698      - changed argument list of OBCS_CALC to myTime+deltaTclock
2699      - fixed about 35 bugs in obcs_external_fields_load
2700    
2701    checkpoint55c_post
2702    o obcs stuff
2703      - new runtime flags useOBCSprescribe, useOBCSbalance
2704      - re-arranged obcs_calc
2705      - moved exf_getobcs to obcs_prescibe_read
2706        obcs_prescibe_read is called after ORLANSKI stuff
2707        and independent of it (executable can contain all).
2708      - updated obcs_check
2709      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2710        These may be necessary only if tangential velocities are
2711        prescribed at OB, not sure, needs testing.
2712    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2713      which simplifies the calls and passes the ifc check-bounds test
2714    
2715    checkpoint55b_post
2716    o add a 2D scalar, Z location, exchange_2 routine.
2717    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2718      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2719      affects advect_cs results (for the wrong reason): update output.txt
2720    o use a more standard discretization for biharmonic viscosity ;
2721     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2722      affects results of dome set-up: update output.txt
2723    o fix gad_advection.F (CubedSphere part), back to version 1.23
2724    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2725    
2726    checkpoint55a_post
2727    o merged code to
2728      * prescribe/read time-dependent open boundaries
2729        (works in conjunction with exf, cal)
2730      * sponge layer code for open boundaries
2731      * each boundary N/S/E/W now has its own CPP option
2732        (healthy for the adjoint)
2733    
2734    checkpoint55
2735    o up-to-date adjoint of previous breaks
2736      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2737      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2738      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2739      - carbon: * remove tr1-related adjoint verification
2740                * add ptracer as control variable
2741    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2742      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2743    
2744    checkpoint54f_post
2745    o in verification/carbin/ remove experiment related to
2746      ALLOW_PASSIVE_TRACER (array tr1 etc)
2747      code_ad/ input_ad/ results_ad
2748    
2749    o add two new packages
2750      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2751        + subject to optimization (memory)
2752      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2753        + subject to reordering (many GOTOs in the original code)
2754        + so far opps is called for every (i,j) point, and then operates in
2755          the vertical; one may want to reorder the scheme in order operate in
2756          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2757          fields)
2758    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2759      - all verification tests compile and run with linux_ia32_g77
2760      - defaults are compatible with current input files--nothing
2761        should change if you were not previously using MNC
2762      - MNC output has been added in numerous places (eg. timeave)
2763        but there are still a few writes not yet do-able with MNC
2764        (this is in progress)
2765      - flags now allow for either/or/both use of MDSIO and MNC and
2766        documentation will soon follow
2767      - numerous small formatting cleanups for ProTeX
2768    o add version info (via BUILD_INFO.h) to MNC and stdout
2769    
2770    checkpoint54e_post
2771    o add two new packages
2772      - pp81 (Packanowski and Philander, 1981), Richardson number and
2773        stratification dependent mixing
2774      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2775      - these scheme operate in a similar manner as KPP (without ghat, of
2776        course), however there is only one diffusivity that is used for both
2777        temperature and salinity (and passive tracers)
2778    o add offline package
2779    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2780      provided by Stephanie Dutkiewicz
2781    o genmake2: add ability to search for C compilers and cleanup test output
2782      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2783    
2784    checkpoint54d_post
2785    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2786    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2787      leading to additional shift by 5 days each year of integration
2788       (i.e. leading to considerable offset over the years)
2789    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2790    o start with no AB and no initial filtering (staggerTimeStep):
2791      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2792    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2793      (external loading & cpl import/export stay in forward_step.F)
2794    o update coupling interface to work with new staggerTimeStep
2795    o change MDSIO ptracers_pickup.
2796    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2797    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2798    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2799    
2800    checkpoint54c_post
2801    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2802      this affects (truncation error) output.txt of test-exp:
2803       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2804    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2805    o change Qnet to always be the net heat flux, (+upward).
2806      affects (truncation error) output of natl_box exp.: updated
2807    o define the max number of passive tracers in PTRACERS_SIZE.h
2808    o start to test mnc routinely in exp0
2809    o add sea-ice loading (sIceLoad) as a new forcing field.
2810    
2811    checkpoint54b_post
2812    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2813       impressive on Altix and Opteron systems)
2814    o diagnostics can now write NetCDF files through the mnc package
2815    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2816    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2817    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2818      affects (truncation error) output of lab_sea & natl_box exp.: updated
2819    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2820    
2821    checkpoint54a_post
2822    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2823    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2824    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2825    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2826      + internal_wave (shift in writing cg2d_ini_res)
2827    checkpoint54a_pre
2828    
2829    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2830      - modified verification/lab_sea and natl_box_adjoint accordingly
2831    
2832    checkpoint54
2833    checkpoint53g_post
2834    o prepare splitting of thermodynamics: store convect.counter in common block
2835    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2836      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2837    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2838    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2839    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2840    o restore adjointability
2841    
2842    checkpoint53f_post
2843    o modifications that affect AIM experiment results (update output.txt):
2844      - no advection of S at top interface Nr (pkg/generic_advdiff)
2845      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2846    o AIM pkg:
2847      - include stability function into surf.Flux derivative relative to Tsurf
2848      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2849    
2850    checkpoint53e_post
2851    o merged cylindrical coord configuration
2852    o added rotating_tank experiment
2853    checkpoint53e_pre
2854    
2855    checkpoint53d_post
2856    o faulks upgraded: re-generate output.txt that have changed:
2857       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2858    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2859    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2860    o added Sadourny discretization of Coriolis
2861      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2862      - re-enabled use of omega3 (useAbsVorticity)
2863    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2864      vector-invariant equations
2865      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2866    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2867      hopefully without new bugs
2868      - still to do: biharmonic friction for non-hydrostatic w
2869    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2870    o regenerated output for global_ocean_ebm (using -ieee)
2871    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2872      of mom_common/
2873      - simple re-arrangement of instructions within computing loop
2874    checkpoint53d_pre
2875    
2876    checkpoint53c_post
2877    o new version of coupler for AIM+thSIce and Ocean models
2878     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2879     - land: change Evaporation of snow
2880     - aim with thSIce: fix bug in snow-precip.
2881    o changes to calc_gw.F
2882     - bug fix for w^2 term near the bottom boundary
2883     - (hopefully) improve the lateral slip boundary condtions for use with
2884        partial/looped cells
2885      - because the bug fix changes two verification experiments anyway (exp5
2886        and plume on slope), change the lateral boundary condition from half slip
2887        to the value of no_slip_sides
2888    o ebm package wasnt quite up to the parallel task. Fixed that.
2889    o Adjoint of EBM package + verification
2890      * TLM OK
2891      * ADM not sufficient accuracy yet (needs further testing)
2892    
2893    checkpoint53b_post
2894    o Commiting new energy balance model to repository
2895      * package is pkg/ebm
2896      * verif. is verification/global_ocean_ebm
2897      * references are in ebm_driver.F
2898    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2899    C        Global thermohaline circulation. Part I:
2900    C        Sensitivity to atmospheric moisture transport.
2901    C        J. Climate 12(1), 71-82
2902    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2903    C        Global thermohaline circulation. Part II:
2904    C        Sensitivity with interactive transport.
2905    C        J. Climate 12(1), 83-91
2906    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2907    C        Destabilization of the thermohaline circulation
2908    C        by atmospheric eddy transports.
2909    C        J. Climate 7(12), 1870-1882
2910    o Will need long integration testing.
2911    checkpoint53b_pre
2912    
2913    o created pkg/mom_common in preparation for variable viscosity code
2914    o renamed and split ini_mnc_io
2915    o pkg/land: only liquid water can diffuse or run-off
2916    o AIM using land: soil wetness availability account for snow
2917    o added printMapIncludesZeros to EEPARMS namelist
2918    
2919    checkpoint53a_post
2920    o restore TAMC compatiility for exf_constants.h
2921      (no usage of _d in .h)
2922    o Additional storing in KPP in an attempt to fix
2923      TAMC problem with adjoint of KPP code.
2924      (no success...)
2925      Identical code works fine with TAF.
2926    o Fixed verification/natl_box_adjoint experiments.
2927      Initial conditions for Experiments 4 and 5 are now
2928      set to "SEAICE_initialHEFF=0", which is more reasonable,
2929      and hence gives results closer to that of Experiment 2.
2930      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2931    
2932    checkpoint53
2933    o stable checkpoint with up to date adjoint
2934      TLM tests only run for 1st grdchk at the moment. Its unclear if
2935      this is a code problem or a problem with resetting code for g_
2936      variables that is being autogenerated wrong.
2937      Otherwise:
2938       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2939       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2940         are both still in chaos following their security messes.
2941    
2942    checkpoint52n_post
2943    o various build (mostly genmake2) changes including:
2944      - ability to build/run more easily within Cygwin and MacOS X
2945      - more complicated Makefiles with a stronger dependence on Gnu Make
2946    o pkg/seaice modifications
2947      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2948        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2949        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2950      - changed proxy for geostrophic velocity and updated
2951        verification/lab_sea/results/* accordingly
2952      - removed ADI dynamic solver from pkg/seaice
2953      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2954        they caused a segmentation fault under certain circumstances
2955      - removed unused field WATR
2956    o bug fix in exf-package:
2957      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2958         now reflect that.
2959    o small fixes in the cal-package:
2960      - set reference date to first of January for the 'model'-calendar
2961      - failing of cal_CheckDate in cal_FullDate now actually results in a
2962        warning
2963    o small modifications in exf-package to increase flexibility:
2964      - change climtempfreeze from a constant to a runtime parameter that
2965        is specified in data.exf_clim (default = -1.9)
2966      - introduce runtime parameter windstressmax (default = 2.0) that is
2967        specified in data.exf
2968    o fix in pkg/thsice:
2969      - update Evap (Tsf changes) to be consistent with Latent heat flux
2970      - maintain snow precipitation unchanged (even if Tsf >=0).
2971     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2972    
2973    checkpoint52m_post
2974    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2975      this does not change any of the results, because myIter=0 in swfrac always
2976      lead to jwtype=2 (the default anyway), but the call makes little sense
2977      as a default
2978    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2979    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2980      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2981    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2982    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2983    o extending useSingleCpuIO option to work with new exch2 I/O format
2984      - old-style, missing-tile I/O is still accessible by defining CPP
2985        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2986    o monitor package can write to NetCDF files and/or STDOUT
2987    o fix re-definition bug in MNC_GRID_INIT_ALL()
2988    o doc/api_reference added
2989      - a framework for building an API Reference Manual using all
2990        the "protex" comments embedded in the code
2991      - see pkg/generic_advdiff, pkg/mnc for examples
2992    o MNC:
2993      - make myThid the last argument for all subroutines
2994      - new default for the grid files: NO halos
2995      - add useMNC and other run-time flags
2996      - separate per-file-group handling of the unlimited dimension
2997      - early initialization of MNC w/ flags read at the eeboot stage
2998        and lookup tables set in initialize_fixed
2999      - write all MNC output to a freshly-created directory
3000    o thermodynamics sea-ice (thsice) is now tested with testreport.
3001    o test exp. advect_cs: use the standard cs32 grid ; update output.
3002    o Added functionality to grdchk:
3003      pick global i,j,k position (or nearest wet) where to perform check.
3004    
3005    checkpoint52l_post
3006    o new land formulation:
3007      a) use ground enthalpy as prognostic variable to ensure exact
3008         energy conservation.
3009      b) account for water temperature and for latent heat of freezing
3010         in all processes (rain, run-off, ground storage)
3011      c) compute surface and ground temperature implicitly.
3012    o aim_v23 modification for new land model:
3013      a) Treat separately land / ocean / sea-ice surface fluxes
3014         to allow implicit computation of land & sea-ice surface temp.
3015      b) add snow precipitation.
3016    checkpoint52l_pre
3017    
3018    o fix problem (when 1 tile is empty) in min/max monitor.
3019    o fix bug in timeAve (u,vZetatave in common block)
3020    o no restoring terms under ice for pkg/seaice
3021    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
3022    o bug fix for pkg/seaice pickups
3023    o change MNC call locations and add coordinate attributes
3024    o mask vorticity at the corner ; affects global_ocean.cs output
3025    o fix ini_curvilinear_grid ; test CS experiments with mpi
3026    o aim.5l_cs: modify sea-ice fraction input file ; update output
3027    o exf: Adding simple range check routine for exf fields after read
3028    
3029    checkpoint52k_post
3030    o removed top-level directory "diags"
3031      - we migrated these functions to pkg/timeave a long time ago
3032    o fixed bug introduced in pkg/monitor
3033    o accuracy ctrlprec = 32 insuffient for gradient checks using
3034      averaged fields (I/O via cost_averages)
3035      -> use ctrl.h in active_file*.F to control I/O precision.
3036    o paramter list of CALL ADTHE_MAIN_LOOP
3037    o added initial do_the_model_io to ecco
3038    o set all ...Freq to zero after cost_final
3039      taveFreq, dumpFreq, pChkptFreq
3040    o MAIN and ECCO differentiability restored
3041    
3042  checkpoint52j_post  checkpoint52j_post
3043  o fix nchklev in tamc.h for global_ocean...  o fix nchklev in tamc.h for global_ocean...
3044  o Bringing flow and store directives up-to-date  o Bringing flow and store directives up-to-date

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