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revision 1.742 by mlosch, Wed Nov 1 09:50:43 2006 UTC revision 1.1197 by jmc, Fri Nov 20 01:02:16 2009 UTC
# Line 3  $Name$ Line 3  $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/cd_code:
8      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
9       C-grid momentum. D-grid velocity used to be stepped forward in time with
10       Adams-Bashforth only on surface pressure term. Tests show that using AB on
11       D-grid coriolis term improves stability (as expected from CD-scheme paper).
12      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
13      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
14       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
15       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
16      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
17           lobal_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
18    o pkg/obcs:
19     - fix bug in initialisation (broken since Oct 1rst modification)
20       for useOBCSprescribe without useEXF.
21    
22    checkpoint61y
23    o pkg/seaice
24     - change (once again) the discretization for the evp solver: rather than
25       squaring the averages of strain rates, average the squares to give
26       a better approximation to VP behavior (in simple test); this breaks
27       verification experiments that use EVP (lab_sea and lab_sea.hb87)
28        --> update outputs
29    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
30      to improve vectorization of adjoint code on TARGET_NEC_SX
31    o verification/vermix:
32      - change vermix to a more "classical" 1d column with high vertical
33        resolution, seasonal heat flux forcing and constant wind forcing
34        --> update outputs
35    o pkg/seaice
36     - fix diagnostics of principal stress components for EVP
37     - add optional diagnostics of non-linear convergence for LSOR solver
38     - make maximum zeta a runtime parameter
39    o model/src (3-d solver):
40      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
41       which consisted in removing the Surf. Non-Hydrostatic pressure from the
42       whole column and adding it to Eta (inspired from Casualli, 1999):
43       Only affects 3-D solver initial guess and only if using ExactConserv,
44       but tests did show a degradation of solver convergence. For this reason,
45       decide to disable this piece of code.
46       to recover previous version, just set zeroPsNH = exactConserv (line 78).
47      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
48    o pkg/ggl90:
49     - fix previous modif (unfortunatly has not been documented here).
50    o pkg/seaice/autodiff:
51     - add CPP flag to include clipping of zeta in EVP code;
52       although clipping of zeta is not necessary for EVP and not recommended
53       it was done by default, now clipping is disabled by default
54     - modify computation and store zetaC/Z in seaice_evp for TAF
55     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
56     - change seaice_calc_viscosities/strainrates for better
57       vectorization after AD by TAF
58     - rearrange common blocks in SEAICE.h once again for easier dumps of
59       adjoint output, adjust adcommon.h and g_common.h
60     - change flux form of default advection scheme for better vectorization
61       of adjoint code
62     - modify lab_sea/input.lsr to test the flux form of default advection
63       scheme
64    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
65      transition in checkpoint61r)
66    
67    checkpoint61x
68    o adjoint: adding two new verification experiments
69      * tutorial_global_biogeo: an online dic sensitivity experiment
70        (work with G. Forget)
71      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
72        (an update of the Dutkiewicz et al., 2006 paper)
73      Both use the same CO2FLUX cost function, but different controls
74      Gradient checks look good, but some recomp. could still be traightened out
75      Should add xx_dic control variable to test at some point
76    o model/src:
77      add run-time parameters to check and/or mask initial Temp & Salt
78    o pkg/ptracers:
79      apply zonal filter (if used) to all passive tracers
80    
81    checkpoint61w
82    o adjoint:
83      * update and finish work on adjoint of dic package (G. Forget)
84      * start adjoint of offline package
85      * bug fix for cube-sphere TLM code (active_file_g.F)
86    o tutorial_global_oce_optim:
87      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
88      and add SIZE.h_mpi for MPI testing
89    o pkg autodiff
90     - fix bug in autodiff_restore
91     - make genmake2 remove comments and empty lines from ad_input_code.f in
92       order to reduce file size (new script file remove_comments_sed)
93    o allows to specify vertical profile of vertical viscosity (viscArNr)
94    o pkg autodiff
95      autodiff_ini_model_io: comment out writing of grid information to netcdf
96      files, because at this time the grid fields are a bunch of zeros
97      (this is analogous to ini_mnc_vars.F)
98    o pkg seaice/autodiff:
99     left-over from removing the 3-time-level fields:
100     - small rearrangement of common blocks (SEAICE.h)
101     - fix field declaration in order to get meaningful output in
102       adseaice.*.nc (adcommon.h)
103    o pkg obcs:
104     - go through NH code only if nonHydrostatic=T
105     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
106     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
107       => Update output of experiment seaice_obcs
108     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
109     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
110     - fix restart for useOBCSprescribe + useEXF
111    o pkg ctrl
112     - make obcs as control parameter work also with useSingleCPUio
113     - replace a few sny and snx by Ny and Nx to be consistent with
114       ctrl_set_globfld_x/yz.F
115    o pkg seaice
116     - re-introduce global field frWtrAtm for the case of
117       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
118     - catch the case of an empty filename in seaice_cost_init_fixed.F
119    o pkg ecco:
120     - small bug fixes in the_main_loop
121      . fix order of monitor arguments
122      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
123      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
124        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
125     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
126       imbalance diagnostics for wmean_h/sflux = 0
127     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
128     - catch the case of empty filenames in ecco_cost_init_fixed.F
129       and ecco_readparms.F
130     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
131       to make this statement meaningfull in ecco_cost_weights.F
132    o pkg zonal_filt:
133      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
134      - when using rStar, filter uVel*hFacW instead of uVel
135       (tested without topography: fix a Pb of growing instability with NLFS)
136    o pkg/aim/thsice:
137     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
138      (works as SST restoring)
139    o pkg/thsice:
140     -add specific parameter for salt restoring in slab mixed-layer
141       (by default equal to the temperature restoring)
142    
143    checkpoint61v
144    o pkg/kpp:
145     -add double diffusive contributions as a hack, turned off by default
146      for now, and the code can be excluded with a CPP-flag
147      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
148     -add a verification experiments to "vermix" to test this code
149    o pkg/mom_common:
150      Move computation of length scales to mom_init_fixed.F (avoid recomputation
151      at each time-steps*levels).
152    o pkg/layers:
153      Created a new package for computing volume fluxes in temperature or
154      [not yet implemented] density layers, e.g. for calculating residual
155      overturning circulations.
156    o pkg/diagnostics:
157      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
158    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
159    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
160      To avoid mixing type (RS/RL) of input/output array argument,
161      replace single mixed-type array with a pair from each type (RS/RL).
162    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
163      is now implemented for all pkgs (previously only done for the main pickup)
164    
165    checkpoint61u
166    o pkg/obcs:
167      - change OB?eta from _RS to _RL and put them into a separate commen block
168      - add code to read OB?eta from a file via obcs_prescribe_read: the code
169        compiles and does not destroy any other experiments, the data is read
170        properly, but the code is not tested in actual applications
171    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
172      create a meaningful unit attribute for the time coordinate variable
173    o pkg/ebm: add plenty of missing "_d 0" ;
174       update results of experiment global_ocean_ebm (fwd + adjoint tests)
175      Notes: several pieces of code only works for (very) specific set up
176       (domain size, lat range, etc ...); should be documented & stop if one
177       of those assumptions is not meet.
178    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
179       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
180          and offline_exf_seaice (seaicetd + adjoint).
181    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
182       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
183        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
184    o few changes to pass when compiling with strick checking of arguments
185       across S/R (allow to find few bugs in S/R calls).
186    o pkg/seaice:
187     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
188       2d-fields, for slightly better performance
189    
190    checkpoint61t
191    o pkg/seaice:
192     - remove unused variables in seaice_evp
193     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
194    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
195       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
196       each processor opens a different file (a fix from Matt).
197    o cg2d:
198       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
199       this reduces number of EXCH calls by 2 when using exch2.
200       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
201       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
202    o pkg/thsice:
203       add code for Near Infra-Red albedo (from Jeff)
204       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
205    o ini_model_io:
206       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
207       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
208       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
209    
210    checkpoint61s
211    o pkg/exch2 (exch2_rxN_cube*):
212       remove last BARRIER (no need to synchronise after getting data from shared
213       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
214    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
215      and generate new output (for the 2 tests) using default rotationPeriod.
216    o pkg/exch2:
217      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
218        (was already the case with AUTODIFF_EXCH2 defined)
219      - add bj in exch2 arrays and S/R.
220      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
221        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
222    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
223      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
224        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
225      - verification experiment natl_box.longstep
226    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
227      allow different versions of ifort (8 or 9) and different versions
228       of mpi (mpich or mpich2) to be used with the same optfile.
229      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
230       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
231    o pkg/seaice:
232      fix previous modif (3-level field removed) for old-pickup reading
233    
234    checkpoint61r
235    o pkg/seaice:
236     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
237      1. introduce fields for time step (N-1)
238      2. do not use levels 2 and 3 anymore (but keep them)
239      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
240         includes changes to pkg/thsice/thsice_get_velocity.F,
241         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
242         pkg/obcs/obcs_apply_uvice.F.
243     - completely remove code for leap-frog time stepping for second order
244       advection
245     - adjusted adjoint accordingly;
246       gradient checks have improved by an order of magnitude!
247    
248    checkpoint61q
249    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
250     - the boundary conditions along open boundaries are unclear, because the
251       associated masks are set to zero and are thus treated as closed when
252       applying the slip-boundary conditions.
253     - move initialisation of grid variables from seaice_init_varia to _fixed
254    o adding doc/diags_changes.txt
255    o model/src:
256      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
257       to avoid "_diags" naming if no relation to pkg/diagnostics.
258      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
259       file and only call PLOT_FIELD_XYZ if debugMode=T.
260      remove few PLOT_FIELD_XY calls outside initialisation.
261      remove few unnecessary BARRIER.
262    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
263      of salt_plume package in Southern Ocean
264    o pkg/thsice:
265     - fix hOceMxL in overlap (needed for sea-ice advection);
266       update output of experiment global_ocean.cs32x15.icedyn.
267    o pkg/seaice:
268     - make the (placeholder-)tracer IceAge a little more meaningful
269      by avoiding ridging of age due to convergent ice flow
270     - add diagnostics for surface temperature, atmospheric and oceanic
271       heat flux, and atmospheric and oceanic ice growth
272    
273    checkpoint61p
274    o eesupp (global_max & global_sum):
275     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
276     - remove starting & endding barrier (no longer needed)
277    o pkg/mdsio, writelocal:
278       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
279       (remove the STOP): uses shared buffer IO to store data from all threads
280       and then let master-thread write nThreads tiles.
281    o pkg/mdsio (read/write field):
282     - tiled IO done in 1 piece (all levels at a time);
283     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
284     - multi-threaded: allow to read/write local (non-shared) array
285       (was already working with singleCpuIO ; now works also without);
286       => no longer needs barrier call after reading a file (added inside
287       mds_read/write field).
288     - move barrier calls outside gather/scatter_2d to mds_read/write_field
289    o pkg/obcs/exf
290      - exf_getffieldrec.F: add a few ". _d 0" and
291                            add code to catch the case fldperiod = 0.  
292      - obcs_precribe_read.F: change if statements so that they match
293                              the variable type (_RL)
294      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
295        exf_iprec) as part of namelist EXF_NML_01
296    o pkg/mdsio:
297      - read/write tiled (local) files: read/write 1-level tile chunk at a time
298        (instead of segment of length sNx); expected to speed up tiled IO.
299    o pkg/exch2:
300      - take buffer copy from/to array out of S/R exch2_send/recv into new
301        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
302        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
303      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
304      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
305        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
306        including Topology header file (and common blocks).
307      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
308        remove 2nd exch call in exch2_s3d_rx (no longer needed).
309      - document S/R arg. list (+ update some comments)
310    o pkg/seaice:
311      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
312        temperature and humidity over sea ice based on climatological values.
313      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
314        of LSR (this change is expected to change the results slightly because now
315        it uses slightly difference moduli from the second last LSR solution, but
316        that is more consistent with the stress computations; this part of the code
317        is not tested in the verification experiments)
318      - fix diagnostics for flux of ice in case of B-grid
319      - turn strain rates eij and press into global fields within global
320        common block in SEAICE.h for more straighforward diagnostics
321      - fix diagnostics for principal stress components, press, zeta, eta
322        to give something meaning full
323    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
324      new output (all 4 tests) using default rotationPeriod.
325    o pkg KPP:
326      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
327      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
328        and normal grid from 1 to Nr)
329    o Fix computations of L4rdt in mom_calc_visc.F
330    o eesupp:
331      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
332      should be called before a "stop" if we know that all process are going
333      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
334    
335    checkpoint61o
336    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
337    o model/src/ini_curvilinear_grid.F:
338       compute angleSin/CosC when they are not read from a file
339    o pkg/seaice:
340       add pseudo time stepping for LSOR
341    o pkg/exch2:
342       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
343    o pkg/seaice:
344       Adding separate sea ice albedo, drag coefficients, and HO in Southern
345       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
346    o SingleCpuIO:
347       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
348    o pkg/seaice:
349       put exchanged variable in (local) common block for MPI+Multi-Threads
350       to work (necessary with exch1, and for now with exch2 too).
351    o verification: to get more experiments tested with mpi, mth and mpi+mth,
352      change tiling of:
353       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
354       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
355      update output of exp:
356       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
357       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
358      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
359                       (note: output.txt generated on faulks using only 1 tile)
360    o eesupp & mdsio (SingleCpuIO):
361     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
362       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
363       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
364     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
365     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
366       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
367    o pkg/exch2:
368     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
369       read parameter file "data.exch2" if it exists; otherwise try default regular
370       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
371     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
372       with new code (not to be used, just as a backup solution).
373     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
374       in utils/exch2/input.
375    
376    checkpoint61n
377    o eesupp & mdsio (SingleCpuIO):
378      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
379        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
380        receive real*4 array (instead of real*8) to read/write 32.bit files.
381        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
382         and remove new mapping S/R)
383    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
384      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
385        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
386        when using exch2. Add S/R to map global io-buffer to global model array.
387      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
388    
389    checkpoint61m
390    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
391      and add 3 other S/R for other types (R4,R8,RS).
392      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
393    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
394     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
395     - reduce number of macro definitions (keep only those which are used);
396       can always call directly the corrresponding S/R if needed.
397     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
398       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
399     Fixed wrong type of arg in:
400       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
401       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
402     To fix: global_sum of var in common block is wrong (multi-threaded) in:
403       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
404     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
405    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
406      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
407    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
408    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
409      edges are closed (zero depth); might happen with "blank tiles";
410      for now, disabled if using OBCS.
411    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
412      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
413    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
414      to reduce length of 1.D array print in STDOUT.
415    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
416      + use 48 tiles (16x8): this will allow to test "blank tiles".
417    o start to test MPI + multi-threaded (change testreport to skip tests
418      where number of tiles do not match).
419    o genmake2: add option "-omp" to turn on Open-MP ;
420      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
421    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
422      and keep the original tile numbering. Note: compatible with old
423      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
424    
425    checkpoint61l
426    o Overlaps had been forgotten in calculating ijk keys : fixed
427    o fix cyrus makedepend for gcc 4.4
428    o experiment fizhi-cs-aqualev20:
429      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
430      and generate new output. Note: new output is much closer to the old
431      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
432      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
433    o pkg/fizhi:
434     - change to avoid indices going deliberately over array-bounds
435     - remove unnecessary MPI stuff
436     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
437     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
438       does not go over array-bounds and therefore returns reliable output.
439     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
440       this S/R has 4 output arguments, which are used inside "get_alarm";
441       when it is called with the same variable "ndum" in place of several
442       output arguments, this produces weird side effect inside "get_alarm"
443      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
444       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
445       address) and produces error.
446    o tools/gemake2: (March 27-29 2009)
447      with option "-mpi": link *_mpi files from "MODS" dir (this is what
448      testreport does).
449    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
450    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
451       update lab_sea.lsr & lab_sea.salt_plume results
452    o pkg/seaice:
453      Major overhaul of the LSOR solver: change discretization from original
454      finite differences to finite volume. The old routine is still in the
455      file seaice_lsr.F and can be turned on with the CPP-flag
456      SEAICE_OLD_AND_BAD_DISCRETIZATION
457      Along with this change, the discretization of the strain rates is changed.
458      The same flag turns on the old discretization in seaice_calc_strainrates.F
459      All verification experiments with seaice are affected (except for
460      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
461      results by setting the above flag.
462      Further changes involve changes in defaults:
463      - ALLOW_FLOODING is defined and turned on by default
464      - SEAICEadvSnow = .true. is now the default
465      - SEAICEadvSalt = .true. is now the default
466      - SEAICEadvAge  = .true. is now the default
467      - SEAICE_clipVelocities  = .false. is now the default
468                                         (as per J. Zhang's recommendation)
469      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
470        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
471      - seaice_growth: replace computation of UG by a simple copy from wspeed
472    
473    checkpoint61k
474    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
475      seaice_lsr: fixed a few metric terms,
476                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
477                  add more debugging diagnostics
478      seaice_evp: removed superfluous many metric terms of FV discretization
479                  of stress divergence
480                  affects lab_sea, lab_sea.hb87
481      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
482                  of stress divergence for non-evp solver
483                  (this part is not tested anywhere)
484      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
485                  they were effectively only half slip
486                  affects lab_sea.hb87
487      updated all relevant verification experiments (except lab_sea//output_adm.txt
488        which was left over, but fails at level 7 & 6)
489    
490    checkpoint61j
491    o pkg/seaice: turn a few hard wired parameters into run time parameters
492    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
493      time in seconds as promised by the usints in seaice_monitor and exf_monitor
494    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
495      that are not cubed-sphere grids
496    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
497    o pkg/ctrl:
498      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
499    o non-hydrostatic (calc_gw.F):
500      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
501      update output of exp. global_ocean.cs32x15.viscA4
502    o remove backward compatibility for thetaMin,phiMin
503      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
504    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
505      interpolated wind field not only for curvilineargrid=.true., but also
506      for a rotated grid (rotateGrid=.true.)
507    o pkg/exf: add capability to bypass interpolation for runoff
508      by setting yet another CPP-flag
509    o eesupp/src, B-grid exchange:
510      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
511    o autodiff
512      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
513      allows to switch to single-prec common blocks;
514      corresponding switch occurs in tamc.h, integer isbyte
515      TAF store directivs "byte" and "kind" seem equivalent;
516      Most tamc.h have been updated correspondingly.
517    
518    checkpoint61i
519    o autodiff:
520      fix autodiff_sore/_restore indices for obcs
521      (spotted by I. Hoteit, M. Mazloff)
522    o pkg/autodiff, pkg/ctrl:
523      Add flag to reduce all tapelev I/O to single-prec.
524      In data.ctrl set
525        doSinglePrecTapelev = .TRUE.
526    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
527      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
528    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
529      real fresh water flux (not yet)
530    o pkg/mdsio & rw:
531     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
532     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
533    o pkg/flt:
534     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
535       init_fixed & ini_varia.
536     - clean-up & simplify linear interpolation S/R:
537       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
538     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
539     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
540     - add vert. coordinate & horiz. indices to output files.
541     - change vertical position in initial condition, from index to depth [m].
542     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
543       (easier to get to a curvilinear grid) ; delX,delY no longer used.
544    o pkg/ggl90: a few modifications:
545     - fix bottom boundary condition, and interpolation of KappaE
546       near top and bottom
547     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
548     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
549     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
550    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
551      (maintain temporary backward compatibility, until next checkpoint)
552    
553    checkpoint61h
554    o pkg/diagnostics with "periodic averaging diagnostics":
555      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
556    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
557    o pkg/obcs: fix loop ranges for balancing code
558    o pkg/flt:
559     - improve criteria for finding which tile owns a float.
560     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
561    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
562      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
563      with ocean biogeo)
564    o pkg/flt:
565     - do some cleaning and fix the restart ;
566     - add output.txt in flt_example/results to get this pkg tested.
567    o genmake2: add an EXTENDED_SRC option and flag.
568       for now, cannot be turned on on command line (only through genmake_local)
569    o pkg/mdsio: read/write vector:
570     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
571     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
572       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
573     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
574      (drop to 4 digits matching for grad). But this test does not look very
575      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
576    
577    checkpoint61g
578    o pkg/flt:
579      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
580       + make OPTIONS file more standard.
581      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
582      - fix _BYTESWAPIO CPP-Flag
583      - standard reading of file-parameter "data.flt"
584      - fix argument list of S/R FLT_RESTART
585      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
586    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
587    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
588      a still unfixed compiler/optimization bug
589    
590    checkpoint61f
591    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
592      update results of global_ocean.cs32x15.icedyn test.
593    o move getcon.F from model/src to pkg/fizhi.
594    o pkg/exf: add parameter for extrapolation of temp up to the surface
595       and option to prevent negative evap (in bulk_largeyeager04 only).
596    o Prather Advection scheme: fix tracer conservation for divergent flow
597      (e.g., when using NonLin Free-Surface).
598    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
599    o gmredi (Visbeck-variable-K):
600     - add more parameters to Visbeck-variable-K.
601     - use a 5 points average for dSigmaR in Visbeck-K calculation
602       (more "homogenous": same stencil and same weights as in dSigmaH)
603     - update output of ideal_2D_oce experiment.
604    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
605      (#undef REAL4_IS_SLOW)
606     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
607       coordinate variable
608     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
609       (surface forcing fields), removes some of the functionality
610     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
611     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
612       probably not all: copy _RS surface flux fields to RL field before
613       calling DIAGNOSTICS_FILL
614     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
615       real*4 (CALL EXCH_*_RS) versions.
616     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
617       (generate new output).
618    
619    checkpoint61e
620    o gmredi (Visbeck-variable-K):
621      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
622      - change computation of Visbeck-K where Slope > Smax :        
623        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
624        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
625    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
626      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
627    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
628    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
629      does not become too large (to avoid precision problems in implicit-diffusion
630      solver); update ideal_2D_oce output.
631    o pkg ggl90:
632      - in ggl90_cal.F: compute only one set of visc/diff, used to
633        step forward TKE/T/S/momentum
634      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
635        have Prandlt =1)
636    o gmredi (fm07):
637      - add lower limit on Transition layer thickness + lower limit on 1/lambda
638      - allow to set few more params from data.gmredi
639    o pkg ggl90:
640          - add missing sqrt(2) factor in computation of mixing length
641            scale in ggl90_calc.F
642            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
643    
644    checkpoint61d
645    o adjoint modifs
646      - adapt to new field rhoInSitu
647      - allow to revert from StoreDynVars2D, StoreDynVars3D
648        to individual fields
649        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
650    o store 3-D (in-situ) density in commom block (DYNVARS.h)
651     - save 1 rho computation.
652     - no longer modify T & S inland when using down_slope pkg.
653    o gad_som : allow to switch to SOM advection for T & S without corresponding
654      pickup files (using new S/R: MDS_CHECK4FILE).
655    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
656      (for useSingleCpuIO to work in multi-threaded)
657    o pkg/shelfice:
658     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
659       with SHELFICEtopoFile in data.shelfice
660     - move code for reading ice shelf topography and modifying hFacC into separate
661       subroutines of the shelfice package
662     - separate initialisation of "fixed" and "variable" variables
663     - kTopC is not (yet) replaced by kSurfC, although this is possible
664    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
665    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
666      and rename:
667      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
668      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
669    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
670    
671    checkpoint61c
672    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
673      to add mass source/sink of fluid in the interior (3-D generalisation
674      of oceanic real-fresh water flux).
675    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
676    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
677    o new pkg: down_slope
678      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
679      - presently, modify T & S inland (dwnslp_calc_rho.F).
680        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
681      - implementation for ocean in P-coords not tested.
682      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
683    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
684      (to facilitate conversion of oceanic pkg to p-coordinate).
685    o change FIND_RHO to FIND_RHO_2D :
686      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
687    o new pkg: cheapaml
688    
689    checkpoint61b
690    o exch2:
691      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
692      - no longer depend on the order sequence (N,S,E,W).
693      - 3rd exchange no longer needed (tested with 24 tiles).
694      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
695      - exch_UV_A-grid readily available (but not yet tested).
696      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
697      (both are no longer needed) in exch_uv: no effect in forward run; but
698       get truncation error differences with adjoint exch.
699    o exch2:
700     - change index-bounds storage (moved from target to local tile,
701       more intuitive this way) ; rename/remove some variables.
702     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
703    
704    checkpoint61a
705    o exch2/matlab-topology-generator:
706      fix bug in index bounds for N-S internal exchange (hard to tell if this
707      had any effect on the solution).
708    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
709      is exceeded
710    o testreport: modify syntax of awk, so that it works also with
711      awk, and not only with nawk and gawk
712    
713    checkpoint61
714    o autodiff
715      Change default for TAF usage by removing argument '-nonew_arg'
716      This changes TAF subroutine argument list (ordering of active var.)
717      Omission of this flag leads to incompatibility w.r.t. TAMC
718      To restore TAMC-compatibility, need following modifs:
719      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
720      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
721      Tested TAF version is 1.9.22
722      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
723    
724    checkpoint60
725    --->>> This is the last checkpoint for which generating the adjoint
726    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
727    --->>> by default.
728    --->>> Future checkpoints will ommit this flag by default.
729    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
730    o pkg/grdchk: Add gradient check to etan0 perturbations.
731    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
732    o pkg/autodiff: more flexibility in zeroadj.
733      model/src: modifying do_oceanic_phys.F accordingly.
734    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
735    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
736      special setup of gmredi for which the adjoint is stable
737      enough for parameter optimization.
738    o bridging the gap between eddy stress and GM.
739      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
740          along with a change in CPP option (now ALLOW_EDDYPSI).
741      -> when using GM w/ GM_AdvForm:
742          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
743          is applied either in the tracer Eq. or in momentum Eq.
744          depending on data.gmredi (intro. GM_InMomAsStress).
745      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
746      The key modifications are in model/src/taueddy_external_forcing.F
747      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
748    
749    checkpoint59r
750    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
751      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
752      fix option to read coriolis(@ cell-corner) from files with CS-grid.
753    o pkg/mnc: add some attributes to standard 1D-coordinate variables
754    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
755      mass points, when using mnc for output
756      - add runtime parameter (missing_value, missing_value_int) to override
757        default (which is the value of getcon('UNDEF'))
758    o pkg/mnc: prepare mnc for the actual use of missing values with the
759      diagnostics package: small fix in mnc_cw_readwrite.template and more
760      initialisation of never used fields
761      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
762      versions
763    o pkg/thsice/thsice_ini_vars.F added default initial values so that
764      thermodynamics sea ice solver does not blow up when some initial fields
765      are missing.
766    o move from external_forcing_surf.F to ini_forcing.F
767      the p-coord. hack consisting in using pLoad to set phi0surf ;
768      update output of tutorial_global_oce_in_p (affected @ truncation level).
769    o Freshen up a bit hs94.1x64x5, notably:
770      remove rotationPeriod and tRef=5*0. (adjoint only), and add
771      exactConserv=.TRUE.
772    o pkg/generic_advdiff:
773      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
774      applies to files where Temperature & Salinity 2nd Order moments are used.
775    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
776      this uses a dynamically allocated internal state data structure
777      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
778      and requires a fortran 90 compiler
779    
780    checkpoint59q
781    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
782       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
783    o Refresh tutorial_global_oce_biogeo, notably:
784      - change bathymetry (put back seamounts in ACC, use hFacs)
785      - change EOS (POLY3 --> JMD95Z)
786      - use Bryan-Lewis vertical diffusivity
787      - use multidimensional advection
788      - remove old virtual virtual in dic pkg, now done through ptracer pkg
789      - change a couple of parameters in dic pkg
790    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
791    o pkg/obcs: change default to OBCSfixTopo = .true.,
792      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
793      - replace "debugMode" with "debugLevel .GE. debLevB"
794    o implementation of TAF directives for gchem,cfc,dic
795    o remove "exp5" (replaced by tutorial_deep_convection).
796    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
797      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
798      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
799      --> changes results in exp4, seaice_obcs
800    o tutorial_deep_convection :
801      update the set-up and increase resolution and domain size ; start
802      from pseudo initial conditions = output at t=120mn in order to see
803      something happening when running testreport.
804    o pkg/seaice: add os7mp as an advection scheme
805                  add check for advection schemes
806                  add a flag for restoring T and S underneath sea ice
807    o pkg/my82: add netcdf-support and diagnostics
808    o thsice pkg:
809      - Now hsMax limits snow height by turning it into ice following
810        flooding scheme (and now conserving energy)
811      - Slight rewriting of the formula in thsice_calc_thick.F
812      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
813      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
814    
815    checkpoint59p
816    o gchem / dic / cfc :
817      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
818      - add new parameter files: "data.dic" & "data.cfc" ;
819      - various re-arrangement in initialisation & header file ;
820      - fix tutorial_global_oce_biogeo for multi-threaded test.
821    o pkg/dic: test for "pickup_dic" file when restarting ;
822      if no pickup-file, can restart with a re-initialised pH (same as it did
823      before) providing pickupStrictlyMatch is set to False.
824    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
825      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
826    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
827      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
828    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
829     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
830       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
831    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
832       scheme to use for vorticty-term ;
833     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
834       (with default selectVortScheme, return to original discretisation)
835     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
836    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
837    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
838      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
839      also fix diagnostics VISCAHW & VISCA4W.
840    
841    checkpoint59o
842    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
843    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
844      move a few statemens out the main loop into separate loops
845    o pkg/shelfice:
846      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
847        (kg/m^2/s), does not break tests, because in verification/isomip,
848        rhoConstFresh=rhoConst (by accident)
849      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
850      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
851        new file model/src/seawater.F, so that they are available for all pkgs.
852      - convert potential temperature into in-situ temperature. This changes the
853        isomip tests => update tests
854    o add a flag writePickupAtEnd (default=true) to be able to suppress
855      writing a pickup at the last timestep
856    o tools/mpack-1.6 :
857      - disable automake (not working) and autoconf (not needed).
858      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
859        also cleaner with much less compilation warnings.
860    o pkg/profiles:
861      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
862      (for "less than 32 characters name" compiler requirement)
863    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
864      conditions that have a different sampling frequency than S/T/U/V obcs
865    o pkg/diagnostics (stats-diags):
866      - fix global Min/Max in case 1 processor get only empty tiles
867    o genmake2: replace (4 times)
868         make genmake_tc_1.o >> genmake_warnings 2>&1
869      with
870         COMM="$CC $CFLAGS -c genmake_tc_1.c"
871         echo $COMM >> genmake_warnings
872         $COMM >> genmake_warnings 2>&1
873      to make genmake2 always see the value of CC as specified in the optfile.
874    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
875      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
876      - modify verification advect_cs test to test SOM-advection on CS-grid.
877    o pkg/ctrl:
878      - Rewrite of ctrl_map_ini_ecco.F,
879        introducing a generic routine (ctrl_map_ini_gen.F).
880      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
881    
882    checkpoint59n
883    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
884      number in dedicate array "hdiag":
885      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
886        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
887      - many small changes (integer format) for large number of diagnostics
888      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
889        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
890    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
891      usingSphericalGrid, this allows to define the rotated grid coordinates
892      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
893      geographical coordinates according to the inverse of the rotation defined
894      by the Euler angles, so that Coriolis parameter and online-interpolation by
895      exf works with the geographical coordinates on XC/YC/XG/YG.
896      Naturally, this feature does not work with all packages, so some
897      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
898      profiles), because there the coordinates are assumed to be regular
899      spherical grid coordinates.
900    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
901      - introduce isopycnal diffusion coefficient control.
902    o tools/adjoint_options:
903      - additional control vector components.
904    o pkg/mnc: have mnc create marginally meaning full coordinate variables
905      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
906    o pkg/mypackage:
907      - add example of read/write pickup for state-var ;
908      - add entry points to the main code for state-vars diags & write-pickup.
909    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
910      transitions for useExfYearlyFields
911      - add new subroutine that determines the file to read from for
912        use*YearlyFields = .TRUE. and .FALSE.
913      - add a verification experiment to global_with_exf that tests
914        useExfYearlyFields with USE_EXF_INTERPOLATION defined
915    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
916      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
917      subroutines (which could be generated from a template, because they are
918      almost identical), for now they are included in obcs_prescribe_read.F for
919      simplicity
920    o pkg/exf:
921      - add a little more diagnostic to exf_interp_read (in analogy to
922        mds_read_field, can be turned off with debugLevel < debugLevA=1)
923      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
924        ugly but fast by unrolling short inner loops, inserting a unroll=8
925        directive in routine lagran, and splitting a loop and making do while the
926        outermost loop (the latter requires the intoduction of index arrays)
927    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
928    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
929      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
930    o verification/seaice_obcs: updated for restart test and latest options
931    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
932      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
933      for now this is only available for the C-grid code and also within
934      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
935    
936    checkpoint59m
937    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
938      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
939    o gad_som : fix flux output (& diagnostics) to have same units as other  
940      advection scheme fluxes (was previously multiplied by deltaT).  
941    o added verification/seaice_obcs both to test seaice open boundaries
942      and to provide an example matlab scrpt for generating them
943    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
944    o pkg/salt_plume: clean up salt_plume_frac.F to
945      remove redundancy in PlumeMethod 1 and 4
946    o pkg/kpp: added saltplume diagnostics
947    o pkg/obcs and pkg/seaice:
948      - do not set uice and vice to zero when OB*icefile are unspecified
949      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
950      - moved seaice tracer obcs after call to seaice_growth
951    o pkg/salt_plume: added various options for salt plume depth
952      criterion and for vertical distribution of the salt
953    
954    checkpoint59l
955    o pkg/ptracers: new version of ptracers pickup:
956      read meta file and write only fields which are needed to restart.
957      ( same logic as main pickup file ; also using pickupStrictlyMatch )
958    o pkg/seaice:
959      - add timescale for melting due to warm mixed layer as a means of
960        setting SEAICE_availHeatFrac more conveniently
961      - add a CPP-flag/runtime parameter check for flooding algorithm
962      - reformulated availHeat in seaice_growth.F to be independent of AREA
963    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
964      unit changes
965    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
966    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
967      SX vector computer.
968    o pkg/seaice:
969      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
970        seaice forcing fields can now be read only through pkg/exf
971      - removed some unused halos
972    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
973    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
974      or U/VICE from U/VWIND before computing U/VSTRESS
975    
976    checkpoint59k
977    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
978      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
979    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
980      all experiments pass when compile with un-initialised var. checking option.
981    o added pkg/salt_plume
982    o script to test restart (for now, in MITgcm_contrib/jmc_script)
983    o pkg/seaice: new read/write pickup version.
984      read meta file and write only fields which are needed to restart.
985      ( same logic as main pickup file ; also using pickupStrictlyMatch )
986    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
987    o lab_sea.hb87: modify the domain & update output.hb87.txt :
988      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
989      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
990      process. Fixed here by closing the domain at the Northern boundary.
991    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
992    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
993      a set of consecutive levels in/from a 3-D array.
994    o pkg/ptracers:
995      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
996      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
997    
998    checkpoint59j
999    o in pkgs: dic, obcs, offline, rbcs:
1000      standard way to compute coeff. for time interpolation between 2 time reccords
1001      which retains full precision (& make results less dependent on compiler).
1002      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
1003    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
1004      packages instead of reading ice cover and wind speed separately
1005    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
1006     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
1007      to allow to compile customized code before the update)
1008    o cleaning-up:
1009      - fix CPP instruction syntax in pkg/obcs
1010      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
1011        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
1012      - fix some threads issue in IO parts.
1013    o pkg/dic:
1014      - add tons of "_d 0" (--> much better testreports !)
1015       and then update outputs of tutorial_global_oce_biogeo
1016    o pkg/mom_fluxform:
1017      add a special version of momentum advection intended to conserve momentum
1018      next to a bathymetry step or a coastline edge. (default = off = #undef)
1019    o new read/write pickup version:
1020      - for now, only implemented for main (mdsio) pickup file.
1021      - write out only what is needed to restart; merge pickup_nh , pickup_ph
1022        and main pickup together.
1023      - read meta file; read only what is needed to restart; stop if a field
1024        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
1025        if it make sense (even if the restart is not perfect).
1026      - if no meta file, assume that pickup to read corresponds exactly to
1027        a pickup that would currently be written.
1028      - read pickup written in the old format (until checkpoint59i) if it
1029        recognizes an old meta file (no field-list).
1030      - add a meta file in exp. which starts from a pickup: 2 cases:
1031        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
1032         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
1033        b) a meta file describing the content of the associated pickup file
1034         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
1035    o pkg/mdsio & pkg/rw:
1036      - new routine to read a meta file ; new set of routine to read
1037        Multiple-fields file (with meta file).
1038    o added open boundary conditions capability for seaice
1039        HSNOW, HSALT, UICE, and VICE
1040    
1041    checkpoint59i
1042    o adjoint:
1043      * fix multiDimAdvection adjoint
1044        (partial recomputation problem by TAF for fVerT(:,:,kDown)
1045        and comlev1 size definition (maxpass vs. max. number of tracers)
1046      * verification/global_ocean.90x45x15 adjoint now tests
1047        NLFS and multiDimAdvection using DST3 (=30)
1048      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
1049    o pkg/kpp: add "_d 0" to real constant (if missing);
1050      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
1051      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
1052    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
1053      for internal parameters related to restart process (formerly from PARAMS.h)
1054      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
1055    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
1056      as argument. (only atm2d & obcs write_pickup have not yet been updated)
1057    o pkg/monitor:
1058      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
1059      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
1060      - account for deep Atmosphere factor and density factor (anelastic)
1061    o added open boundary conditions capability for seaice HEFF and AREA
1062    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
1063      thermodynamics
1064      - requires a little reorganization, which affects the testreport results
1065        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
1066        so that now the conservative form is tested
1067      - add a few comments
1068    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
1069    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
1070    o add new diagnostics to seaice: advective, diffusive fluxes (only for
1071      multidim-advection, for scheme 2 they are not filled) and transports,
1072      thermodynamic growth rates
1073    o change units of EmPmR (inside the code, + within coupling interface)
1074      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
1075      Affects results @ truncation level (cg2d match) and update output of
1076       experiments: lab_sea(6), global_ocean.90x40x15(10),
1077      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
1078      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1079      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1080      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1081    
1082    checkpoint59h
1083    o pkg/exf:
1084      - improve vectorization by moving if-statement out of loops in
1085        exf_mapfields, exf_radiation
1086      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1087    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1088    o testreport:
1089      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1090        monitor & update offline_exf_seaice exp. output.
1091      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1092    o pkg/seaice:
1093      - bug fix in the evp solver: boundary conditions were affected be
1094        masking of zMax/zMin (changes results)
1095      - minor bug fix in boundary conditions in seaice_calc_strainrates
1096        (changes results for no_slip)
1097      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1098      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1099      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1100        stress formulation and no-slip boundary conditions
1101    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1102      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1103    o pkg/seaice: a first HSALT time stepping equation has been checked in
1104    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1105      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1106      without requiring DO-IF statements
1107    o pkg/thsice:
1108      use continuous power-law function for partition of energy between lateral
1109      melting/freezing and thinning/thickening ; old code using step function
1110      still available with #undef THSICE_FRACEN_POWERLAW
1111      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1112    o testreport: change AD testing : check against results/output_adm.txt
1113      using same scripts as for forward test.
1114    
1115    checkpoint59g
1116    o adjoint testing: in preparation for changing testreport:
1117      - output format: cost and grad written on separated lines
1118      - ad output results in directory "results" (instead of "results_ad")
1119    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1120    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1121    o pkg/ecco: allow user defined cost function contributions
1122    o testreport:
1123      Allow to choose (per experiment) the list of tested output variables
1124       and the main variable (used to issue a pass/FAIL ) ;
1125      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1126      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1127      Also modify printing of summary:
1128       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1129       b) echo the list of tested variables in the individual summary.txt of
1130          each experiment.
1131    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1132      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1133      (but still depend on the tile decompostion of the domain).
1134    o pkg/seaice: change a discretization detail to make the B-grid code
1135      "more symmetric". This change is likely to remove all "ridges/leads" that
1136      where quasi-aligned with the grid in B-grid solutions. It may also be
1137      the solution to the stress coupling issues with the B-grid.
1138    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1139      remove .cvsignore from input dir. (since testreport no longer run here).
1140    o pkg/thsice:
1141     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1142     - fix reshaping of sea-ice just after advection:
1143       melt all the ice only if ice-volume is too small.
1144     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1145       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1146     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1147    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1148      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1149    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1150      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1151      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1152      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1153      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1154      -> update output.txt
1155    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1156     this affects truncation error: -> update output.txt of exp:
1157      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1158      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1159    
1160    checkpoint59f
1161    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1162    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1163      a bounded range (in forward mode)
1164    o pkg/ecco, ctrl, autodiff and mom_common:
1165     internal parameter controls, completements of implementations
1166    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1167    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1168      (not seem any difference in testing results).
1169    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1170       at face corners.
1171    o pkg/generic_advdiff:
1172     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1173      loop range indices for computing vertical advection tendency
1174      and do the calculation in the interior only (no overlap) ;
1175      for now, only implemented for SOM advection (to save CPU time).
1176     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1177    o exch2 adjoint
1178      First set of changes:
1179      - add exch2 hand-written adjoint templates
1180      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1181        This will require cleanup in pkg/autodiff/*.F
1182        (changed routines currently kept separate in verif. code/)
1183      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1184        that used to hide exch2 or cubed-sphere specific code
1185        (commented via 'cph-exch2')
1186    o pkg/seaice
1187      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1188    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1189       output of global_ocean.cs32x15.thsice .
1190    
1191    checkpoint59e
1192    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1193      for B-grid vector (not yet tested) and C-grid vector (<- only used
1194      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1195    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1196      (#ifdef ALLOW_SALT_PLUME)
1197    o gather_2d/scatter_2d: removed halo regions
1198    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1199      scheme and the corresponding test case (under front_relax dir). For now,
1200      only available with Skew-flux form and not yet tested in realistic set-up.
1201      adjoint: store directives updated, but gradient checks deteriorated,
1202      so maybe GM/Redi adjoint is now broken.
1203    o seaice adjoint
1204      * add AREA, HEFF, HSNOW as control variable
1205        (should not change lab_sea results)
1206      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1207    o pkg/seaice:
1208      * added computation of saltFlux in seaice_growth;
1209        For time being, sea ice salinity is assumed constant
1210        contribution of snow flooding to freshening of sea ice is neglected.
1211        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1212        defaults to 0.0 in order to maintain backward compatibility.
1213        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1214      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1215      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1216        heat content used to melt or grow ice
1217      * commented out cap of HICE: it helps keep ice thinner
1218      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1219      * applied OBCS T/S mask to HEFFM sea ice mask
1220    
1221    checkpoint59d
1222    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1223     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1224     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1225    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1226     and change default value of parameter "GM_Small_Number";
1227     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1228       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1229       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1230    o pkg/ecco: cost function when applying pkg/smooth to controls
1231    o pkg/ctrl: add forcingPrecond run time parameter
1232    o pkg/seaice:
1233     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1234     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1235       changes verification/lab_sea
1236     - rearrange implicit part of u-equation in LSR solver to make it easier to
1237       read, understand, and debug. This causes changes at the truncation level.
1238     - fix (serious) bug in the boundary conditions (sign error in the implicit
1239       part) of the LSR solver. Changes all LSR results.
1240     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1241       is initilized with small values - does not change lab_sea results.
1242     - added HsnowFile initialization capability
1243    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1244     initialization of pkg/smooth and application to control vector
1245    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1246    o dependencies: pkg/profiles requires pkg/cal
1247    o pkg/profiles:
1248     - added option ALLOW_PROFILES_GENERICGRID
1249         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1250         that interpolation information (grid points and coefficients) is provided
1251         within the netcdf input files.
1252         -> sample matlab scripts can be found in MITgcm_contrib/gael
1253         that allow you to prepare netcdf input files.
1254     - also modified: cleaner include statements, cleaner error print statements,
1255       cleaner stops when error, and more tests of the netcdf input files consistency.
1256    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1257    o pkg/seaice:
1258     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1259       requires a new routine: seaice_diagnostics_fill.F
1260     - make sure that seaice does not move if not forced (pressure replacement
1261       method, Hibler and Ip, 1995), changes results
1262     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1263     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1264       It is turned off by default (=-1.), because it changes the results.
1265     - make it possible to read AREA from a file, too.
1266    
1267    checkpoint59c
1268    o add S/R and diagnostics for oceanic mixed-layer depth
1269    o move GMRedi call after all vertical mixing schemes (including KPP)
1270    o pkg/thsice:
1271     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1272      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1273    o pkg/obcs:
1274     - bug fix for balance code
1275    o pkg/seaice:
1276      - allow values of SEAICE_elasticParm > 1
1277      - add new parameter SEAICE_evpTauRelax as an alternative
1278        to SEAICE_elasticParm
1279      - make lsr boundary conditions free slip (by default), changes result
1280      - add code for no slip boundary conditions for lsr
1281      - set minimum of zeta to zero (and not 4e8) (changes results)
1282      - add a cap on AREA after advecting AREA if seaice_growth is not called
1283    o change calculation of Visbeck K:
1284      - no longer depend on tapering scheme; instead, compute slope (limited
1285        by GM_maxSlope). this is equivalent to what was comuted before with
1286        clipping or linear tappering.
1287      - fix vertical averaging (wrong by 1/2 level)
1288      - leave the old version (but will not be maintained) within
1289        #ifdef OLD_VISBECK_CALC / #endif
1290      - update output of exp. ideal_2D_oce
1291    o change error catch in calc_r_star to improve vectorization
1292    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1293      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1294    o adjoint:
1295      Re-organized adjoint checkpointing according to Matt Mazloff
1296      (but with modifs/completions/cleanups)
1297      Storing is now bundled into large arrays to optimized I/O
1298      (and second step in cleanup of the_main_loop)
1299    
1300    checkpoint59b
1301    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1302      - export/import (between ocean & coupler) fields needed for ocean DIC.
1303    o pkg/seaice:
1304      - get rid of three more exchanges seaice_calc_viscosities (required
1305        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1306      - bug fix in seaice_ocean_stress (update of lab_sea required)
1307      - reduce loop boundaries to necessary minimum also in seaice_evp
1308      - go back to the old way of computing deltaC/Z as the adjoint likes that
1309        better
1310    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1311      passive tracer to an Age Tracer) + update output.txt
1312    o pkg/exf:
1313      - implement A-grid / C-grid selection for wind-stress input files.
1314      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1315      for now, in exf_bulk_largeyeager04.F only :
1316      - change implementation for case where windspeed + 2. components wind-stress
1317        are read-in. AND use rhoConstFresh to convert evap.
1318    o pkg/seaice:
1319      - use correct EXCH_UV for wind-forcing (on A-grid).
1320      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1321        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1322    o pkg/exf:
1323      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1324      EXF_INTERPOLATION:
1325      - merge global_with_exf/code version of exf_interp_read.F
1326        to the main code ;
1327      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1328        reading the file ; Important: This options needs to be defined to recover
1329        previous code.
1330        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1331      - no longer loose real*8 precision along the way when using exf_iprec=64.
1332    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1333      - change discretisation of evp-solver in order to avoid another exchange
1334        (changes lab_sea) and clean up a little
1335      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1336        help the adjoint (this also changes the results slightly)
1337      - add a few "_d 0" where they had been missing in seaice_evp.F
1338      - cleaning up: remove unused seaice_calc_rhs.F
1339    o pkg/exf: some cleaning-up:
1340      - change various "constants" into runtime parameters
1341      - cleaned-up Large&Yeager04 routine which should eventually
1342        replace exf_bulkformulae.F (changed names of S/R and CPP)
1343        and merged various ALLOW_ATM_WIND options
1344     only used with thsice pkg (in thsice_get_exf.F):
1345      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1346        which are used when useStabilityFct_overIce=TRUE (= the default)
1347      - change default values of ice & snow emissivity and scale downward LW
1348        by ice & snow emissivity.
1349    o pkg/thsice:
1350     fix few little problems, in thsice_calc_thickn.F:
1351      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1352      - melt only laterally if hIce < hThinIce (as the comments say)
1353      and in thsice_extend.F:
1354      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1355      - start to form ice as soon as the minimum ice-volume is reachable.
1356     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1357      and cpl_aim+ocn
1358    o pkg/kpp
1359     - move computation of surface related input fields to KPP into a new
1360       subroutine kpp_forcing_surf.F
1361     - remove wrong (within bi,bj loops) EXCH calls.
1362     - little cleaning (add argument myThid in last position, cvs header ...)
1363     - for now, fix conservation problem by exchanging KPPviscAz (may not
1364       be the best fix)
1365    o pkg/seaice
1366     - check for inconsistent evp parameter/cpp-flag combination
1367     - remove leftover errIO flat for obsolete name list error handling
1368    o OpenAD
1369     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1370    
1371    checkpoint59a
1372    o pkg/seaice: some parameter clarifications and a little bit of clean up
1373    o pkg/thsice: rename run-time parameters:
1374       himin       -> hIceMin
1375       himin0      -> hThinIce
1376       hihig       -> hThickIce
1377       i0          -> i0swFrac
1378       transCoef   -> bMeltCoef
1379       frac_energy -> fracMelting
1380      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1381       with default values (for now) that do not change the results.
1382      remove old version of thsice vars advection in pkg/seaice.
1383    o in FFIELDS.h:
1384      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1385      - make pLoad & sIceLoad always available (but still only used if
1386         ATMOSPHERIC_LOADING is #define).
1387    o pkg/kpp: replaced _KPP_RL with _RL
1388    o bug fixes for vertical diffusivity computations when both KPP and
1389        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1390        are no longer updating the vertical diffusivity array
1391        (passed as argument) but are (re-) setting those arrays.
1392    o pkg/seaice: fix bug in evp solver, while doing that
1393      - change (improve?) discretization of stress computations for both
1394        cgrid-lsr and evp solver
1395      - add a new routine to compute strain rates
1396      - the above changes lab_sea results
1397      - add no slip conditions for evp solver (off by default), lsr-version
1398        may follow
1399      - fix exchange for shear at Z-points (does not change lab_sea)
1400      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1401        (to force the user to pick a time step since there is not "safe" way
1402        of choosing it)
1403      - add principal stress diagnostics
1404      - rearrange fields for evp a little to avoid having to call a: too many
1405        exchanges and b: exchanges for stress trensor components which we do
1406        not have.
1407      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1408        of evp, complete rewrite for lsr case (latter is does not yet work
1409        in all cases)
1410    o pkg/kpp: add code to have mixing in shelf ice caverns
1411      - add myThid to all kpp routines (long overdue)
1412    
1413    checkpoint59
1414    o pkg/exf:
1415      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1416        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1417      - move exf header files from lower_case.h to UPPER_CASE.h ;
1418        add missing cvs Header & Name
1419      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1420      - add namelist param. selectStressGridPosition, exf_monFreq
1421      - retire many _CLIM routines, and remove data.exf_clim
1422        + params moved to data.exf
1423        + climsst, climsss now handled by exf_set_gen, i.e.
1424          climss?period=0 refers to constant field,
1425          climss?period=-12 to monthly forcing
1426      - split up namelists in data.exf
1427    o pkg/seaice:
1428      - remove seaice_exch and seaice_exch_uv
1429      - remove superfluous exchange of theta
1430      - add myThid to seaice_budget_ocean/ice
1431      - add new interface for atmospheric wind forcing (C-grid only)
1432        + new routine
1433        + two new field (taux, tauy for stress over ice)
1434        + removed one global field (DAIRN) for C-grid case only
1435    o pkg/thsise
1436      - 2nd set of modifs for thsice adjoint in conjunction with exf
1437    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1438    
1439    checkpoint58y_post
1440    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1441      vertical diffusivity, similar to that in MOM4; turned on using
1442      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1443      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1444    o Added capability for 3D specification of background vertical diffusion
1445      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1446      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1447      "data" file that contains the 3D vertical diffusivity coefficients.
1448    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1449      - add code within pkg thsice to advect & diffuse sea-ice fields
1450      similar to (and will replace) what has been added in  seaice_advdiff.F,
1451      but: - conserving Mass, Heat & Salt.
1452           - better when using non-linear advection scheme (not yet fully tested)
1453           - can also be used in atmospheric set-up (for now, only the diffusion).
1454    
1455    checkpoint58x_post
1456    o IO option for global-file compact format:
1457      - add options when generating topology (utils/exch2/matlab-topology-generator)
1458      - add I/O capability (pkg/mdsio).
1459      - adapt utils/matlab/rdmds.m to read this format.
1460      for now long-line format not yet supported by pkg/mdsio (& exch2).
1461    o shelfice: add a few diagnostics
1462    
1463    checkpoint58w_post
1464    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1465      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1466      (and replace horiVertRatio in NH code).
1467      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1468                         and tutorial_plume_on_slope (sensitive to truncation)
1469    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1470      directly to drive seaice model (C-grid only)
1471    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1472     - reintroduce computation of wind from stress,
1473     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1474       mass points to avoid tau = 0
1475     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1476    o rdmnc.m: make it work with "global" files created with gluemnc
1477    o rdmnc.m : some improvements in dealing with singleton dimension
1478      (tested on all testreport mnc output files).
1479    o genmake2: disable pkg/profiles if netcdf test fails.
1480    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1481    o move call to cal_readparms up to make calendar parameters/variable available
1482      to all packages
1483    
1484    checkpoint58v_post
1485    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1486      useDynP_inEos_Zc tested.
1487    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1488    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1489      and portions thereof.  See read_cs.txt for description and examples.
1490    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1491      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1492      following the great-circle arc between those 2 points.
1493    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1494      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1495    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1496     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1497     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1498     - still needs work (not working with some options ; efficiency to improve)
1499       and serious testing.
1500     - use this scheme for temperature & salinity in 2 advection test exp.:
1501       advect_xy & advect_xz, respectively.
1502    
1503    checkpoint58u_post
1504    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1505    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1506    o testreport: add option "-skipdir" to skip some test.
1507    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1508      momentum calculation.
1509    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1510    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1511      remove checkpoint.F and the_correction_step.F (no longer used);
1512      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1513    o add option (linFSConserveTr) to correct for tracer source/sink due to
1514      Linear Free surface
1515    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1516    o pkg/thsice: fix reading mnc-pickups
1517    
1518    checkpoint58t_post
1519    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1520    o pkg/mdsio:
1521     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1522       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1523       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1524     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1525     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1526       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1527     - new S/R (to replace MDSWRITEMETA), which allows to write more
1528       informations (variable names, time ...) to meta files.
1529     - modify rdmds.m to give back the meta file content.
1530    o pkg/diagnostics: change vertical interpolation to be safer, and more
1531       flexible (define p-levels to interpolate to in data.diagnostics);
1532      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1533       diagnostic pointer.
1534    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1535    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1536    o fix multi-category seaice:
1537     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1538       SEAICE_MULTICATEGORY
1539     - fix short wave heat flux
1540    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1541       and allow to use EVP solver. Change forward lab_sea: test both EVP
1542       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1543    o Initial check-in of lab_sea adjoint
1544      (very similar to natl_box_adjoint/code_seaice)
1545      * used C-grid and EVP solver
1546      * used KPP, GM/Redi
1547      * uses inAdExact=.TRUE.
1548      * gradient checks fail for both ADM and TLM
1549        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1550        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1551        issue is related to forward mismatch between g77 an ifort
1552    o pkg/seaice: overhaul of thermodynamics
1553     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1554     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1555     - move a few global fields out of SEAICE.h into seaice_growth.F and
1556       make them 2D (FICE/QNETO/ ...)
1557     - remove FO (it is the same as QNETO)
1558     - introduce a few local fields to avoid modifying external fields such
1559       as atemp, etc.
1560    
1561    checkpoint58s_post
1562    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1563      changed exf_set_gen.F so that
1564        genperiod=0 means input file is one time-constant field and
1565        genperiod=-12 means input file contains 12 monthly means
1566    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1567      this affects truncation error ; generate new output file for exp. which
1568      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1569        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1570        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1571        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1572        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1573        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1574    o start implementation of deep-atmosphere and anelastic formulation
1575    o verification: remove 2nd copy of input files and use script "prepare_run"
1576      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1577    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1578    o profiles: fix for multithreaded case
1579    
1580    o diagnostics: rename few diags:
1581      s/'PRESSURE'/'RCENTER '/g
1582      s/'TICE    '/'oceFreez'/g
1583      s/'TAUX    '/'oceTAUX '/g
1584      s/'TAUY    '/'oceTAUY '/g
1585      s/'SWFLUX  '/'oceQsw  '/g
1586      s/DIFx/DFxE/g
1587      s/DIFy/DFyE/g
1588      and add few ocean-forcing diagnostics:
1589      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1590    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1591      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1592      as actual snow thickness.  It now refers everywhere to effective snow
1593      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1594    
1595    checkpoint58r_post
1596    o modifications to pkg/seaice/growth.F, which change results of
1597      lab_sea experiment: fixes pertain to melting snow over open water, to
1598      masking EVAP under sea ice, and to using the correct AREA variable for
1599      computations of EVAP, PRECIP, HSNOW, and GHEFF
1600    o add ability to read bathy, salt, and theta using MNC (off by def)
1601  o add flooding algorithm and advection of HSNOW for pkg/seaice;  o add flooding algorithm and advection of HSNOW for pkg/seaice;
1602    both are turned off by default and do no change any results    both are turned off by default and do no change any results
1603  o seaice advection with pkg/thsice: a step toward the use of non-linear  o seaice advection with pkg/thsice: a step toward the use of non-linear
# Line 1275  o add two new packages Line 2870  o add two new packages
2870    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2871    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2872      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2873      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2874  o add offline package  o add offline package
2875  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2876    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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