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revision 1.779 by jmc, Wed Mar 21 15:31:33 2007 UTC revision 1.1202 by jmc, Mon Nov 30 20:32:11 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o nonHydrostatic:
8      Fix missing vertical flux of vert. momentum near surface (k=1). This fixes
9        a spurious source of energy in simple baroclinic adjusment test case.
10      Update all non-hydrostatic exp output.
11    o model/src (3-d solver):
12      Change again 3-D solver free-surface RHS term when exactConserv=T:
13        simpler, consistent with exactConserv, and works with implicDiv2Dflow < 1
14        (which was not the case with previous formulation).
15      To recover previous version, just reset "oldFreeSurfTerm" to previous value.
16      Affects results of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW.
17    o nonHydrostatic:
18      - compatible with implicDiv2Dflow < 1 ; + implement implicit factor
19        for Non-Hydrostatic pressure gradient (similar to implicSurfPress).
20      - change 3-D solver to work with r* (for now, only with linear free-surf.)
21      - add few debug diagnostics (cg3d_x, residual)
22    o model/src:
23      fix missing EmPmR in 3-D solver RHS (was in cg2d_b but missing in cg3d_b).
24        update output of exp. global_ocean.cs32x15.viscA4
25    o update output of exp. global_ocean.cs32x15.icedyn after removing
26      #define SEAICE_OLD_AND_BAD_DISCRETIZATION from SEAICE_OPTIONS.h
27    o add entry points for Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
28    o mnc: add horizontal grid coordinates (XC,YC) and (XG,YG) to netcdf output
29      for complex grids, for now only to "state", "adstate", "adexf", "adseaice"
30    o model: add Christopher Wolfe's implemetation of the single reduction cg2d
31      (d'Azevedo, Eijkhout, and Romine, 1999) with CPP-flag ALLOW_SRCG and
32      runtime flag useSRCGSolver. Modify verification experiment global_with_exf
33      to test this code
34    o pkg/cd_code:
35      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
36       C-grid momentum. D-grid velocity used to be stepped forward in time with
37       Adams-Bashforth only on surface pressure term. Tests show that using AB on
38       D-grid coriolis term improves stability (as expected from CD-scheme paper).
39      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
40      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
41       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
42       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
43      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
44           lobal_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
45    o pkg/obcs:
46     - fix bug in initialisation (broken since Oct 1rst modification)
47       for useOBCSprescribe without useEXF.
48    
49    checkpoint61y
50    o pkg/seaice
51     - change (once again) the discretization for the evp solver: rather than
52       squaring the averages of strain rates, average the squares to give
53       a better approximation to VP behavior (in simple test); this breaks
54       verification experiments that use EVP (lab_sea and lab_sea.hb87)
55        --> update outputs
56    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
57      to improve vectorization of adjoint code on TARGET_NEC_SX
58    o verification/vermix:
59      - change vermix to a more "classical" 1d column with high vertical
60        resolution, seasonal heat flux forcing and constant wind forcing
61        --> update outputs
62    o pkg/seaice
63     - fix diagnostics of principal stress components for EVP
64     - add optional diagnostics of non-linear convergence for LSOR solver
65     - make maximum zeta a runtime parameter
66    o model/src (3-d solver):
67      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
68       which consisted in removing the Surf. Non-Hydrostatic pressure from the
69       whole column and adding it to Eta (inspired from Casualli, 1999):
70       Only affects 3-D solver initial guess and only if using ExactConserv,
71       but tests did show a degradation of solver convergence. For this reason,
72       decide to disable this piece of code.
73       to recover previous version, just set zeroPsNH = exactConserv (line 78).
74      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
75    o pkg/ggl90:
76     - fix previous modif (unfortunatly has not been documented here).
77    o pkg/seaice/autodiff:
78     - add CPP flag to include clipping of zeta in EVP code;
79       although clipping of zeta is not necessary for EVP and not recommended
80       it was done by default, now clipping is disabled by default
81     - modify computation and store zetaC/Z in seaice_evp for TAF
82     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
83     - change seaice_calc_viscosities/strainrates for better
84       vectorization after AD by TAF
85     - rearrange common blocks in SEAICE.h once again for easier dumps of
86       adjoint output, adjust adcommon.h and g_common.h
87     - change flux form of default advection scheme for better vectorization
88       of adjoint code
89     - modify lab_sea/input.lsr to test the flux form of default advection
90       scheme
91    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
92      transition in checkpoint61r)
93    
94    checkpoint61x
95    o adjoint: adding two new verification experiments
96      * tutorial_global_biogeo: an online dic sensitivity experiment
97        (work with G. Forget)
98      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
99        (an update of the Dutkiewicz et al., 2006 paper)
100      Both use the same CO2FLUX cost function, but different controls
101      Gradient checks look good, but some recomp. could still be traightened out
102      Should add xx_dic control variable to test at some point
103    o model/src:
104      add run-time parameters to check and/or mask initial Temp & Salt
105    o pkg/ptracers:
106      apply zonal filter (if used) to all passive tracers
107    
108    checkpoint61w
109    o adjoint:
110      * update and finish work on adjoint of dic package (G. Forget)
111      * start adjoint of offline package
112      * bug fix for cube-sphere TLM code (active_file_g.F)
113    o tutorial_global_oce_optim:
114      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
115      and add SIZE.h_mpi for MPI testing
116    o pkg autodiff
117     - fix bug in autodiff_restore
118     - make genmake2 remove comments and empty lines from ad_input_code.f in
119       order to reduce file size (new script file remove_comments_sed)
120    o allows to specify vertical profile of vertical viscosity (viscArNr)
121    o pkg autodiff
122      autodiff_ini_model_io: comment out writing of grid information to netcdf
123      files, because at this time the grid fields are a bunch of zeros
124      (this is analogous to ini_mnc_vars.F)
125    o pkg seaice/autodiff:
126     left-over from removing the 3-time-level fields:
127     - small rearrangement of common blocks (SEAICE.h)
128     - fix field declaration in order to get meaningful output in
129       adseaice.*.nc (adcommon.h)
130    o pkg obcs:
131     - go through NH code only if nonHydrostatic=T
132     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
133     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
134       => Update output of experiment seaice_obcs
135     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
136     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
137     - fix restart for useOBCSprescribe + useEXF
138    o pkg ctrl
139     - make obcs as control parameter work also with useSingleCPUio
140     - replace a few sny and snx by Ny and Nx to be consistent with
141       ctrl_set_globfld_x/yz.F
142    o pkg seaice
143     - re-introduce global field frWtrAtm for the case of
144       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
145     - catch the case of an empty filename in seaice_cost_init_fixed.F
146    o pkg ecco:
147     - small bug fixes in the_main_loop
148      . fix order of monitor arguments
149      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
150      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
151        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
152     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
153       imbalance diagnostics for wmean_h/sflux = 0
154     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
155     - catch the case of empty filenames in ecco_cost_init_fixed.F
156       and ecco_readparms.F
157     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
158       to make this statement meaningfull in ecco_cost_weights.F
159    o pkg zonal_filt:
160      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
161      - when using rStar, filter uVel*hFacW instead of uVel
162       (tested without topography: fix a Pb of growing instability with NLFS)
163    o pkg/aim/thsice:
164     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
165      (works as SST restoring)
166    o pkg/thsice:
167     -add specific parameter for salt restoring in slab mixed-layer
168       (by default equal to the temperature restoring)
169    
170    checkpoint61v
171    o pkg/kpp:
172     -add double diffusive contributions as a hack, turned off by default
173      for now, and the code can be excluded with a CPP-flag
174      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
175     -add a verification experiments to "vermix" to test this code
176    o pkg/mom_common:
177      Move computation of length scales to mom_init_fixed.F (avoid recomputation
178      at each time-steps*levels).
179    o pkg/layers:
180      Created a new package for computing volume fluxes in temperature or
181      [not yet implemented] density layers, e.g. for calculating residual
182      overturning circulations.
183    o pkg/diagnostics:
184      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
185    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
186    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
187      To avoid mixing type (RS/RL) of input/output array argument,
188      replace single mixed-type array with a pair from each type (RS/RL).
189    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
190      is now implemented for all pkgs (previously only done for the main pickup)
191    
192    checkpoint61u
193    o pkg/obcs:
194      - change OB?eta from _RS to _RL and put them into a separate commen block
195      - add code to read OB?eta from a file via obcs_prescribe_read: the code
196        compiles and does not destroy any other experiments, the data is read
197        properly, but the code is not tested in actual applications
198    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
199      create a meaningful unit attribute for the time coordinate variable
200    o pkg/ebm: add plenty of missing "_d 0" ;
201       update results of experiment global_ocean_ebm (fwd + adjoint tests)
202      Notes: several pieces of code only works for (very) specific set up
203       (domain size, lat range, etc ...); should be documented & stop if one
204       of those assumptions is not meet.
205    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
206       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
207          and offline_exf_seaice (seaicetd + adjoint).
208    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
209       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
210        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
211    o few changes to pass when compiling with strick checking of arguments
212       across S/R (allow to find few bugs in S/R calls).
213    o pkg/seaice:
214     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
215       2d-fields, for slightly better performance
216    
217    checkpoint61t
218    o pkg/seaice:
219     - remove unused variables in seaice_evp
220     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
221    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
222       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
223       each processor opens a different file (a fix from Matt).
224    o cg2d:
225       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
226       this reduces number of EXCH calls by 2 when using exch2.
227       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
228       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
229    o pkg/thsice:
230       add code for Near Infra-Red albedo (from Jeff)
231       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
232    o ini_model_io:
233       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
234       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
235       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
236    
237    checkpoint61s
238    o pkg/exch2 (exch2_rxN_cube*):
239       remove last BARRIER (no need to synchronise after getting data from shared
240       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
241    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
242      and generate new output (for the 2 tests) using default rotationPeriod.
243    o pkg/exch2:
244      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
245        (was already the case with AUTODIFF_EXCH2 defined)
246      - add bj in exch2 arrays and S/R.
247      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
248        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
249    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
250      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
251        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
252      - verification experiment natl_box.longstep
253    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
254      allow different versions of ifort (8 or 9) and different versions
255       of mpi (mpich or mpich2) to be used with the same optfile.
256      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
257       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
258    o pkg/seaice:
259      fix previous modif (3-level field removed) for old-pickup reading
260    
261    checkpoint61r
262    o pkg/seaice:
263     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
264      1. introduce fields for time step (N-1)
265      2. do not use levels 2 and 3 anymore (but keep them)
266      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
267         includes changes to pkg/thsice/thsice_get_velocity.F,
268         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
269         pkg/obcs/obcs_apply_uvice.F.
270     - completely remove code for leap-frog time stepping for second order
271       advection
272     - adjusted adjoint accordingly;
273       gradient checks have improved by an order of magnitude!
274    
275    checkpoint61q
276    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
277     - the boundary conditions along open boundaries are unclear, because the
278       associated masks are set to zero and are thus treated as closed when
279       applying the slip-boundary conditions.
280     - move initialisation of grid variables from seaice_init_varia to _fixed
281    o adding doc/diags_changes.txt
282    o model/src:
283      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
284       to avoid "_diags" naming if no relation to pkg/diagnostics.
285      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
286       file and only call PLOT_FIELD_XYZ if debugMode=T.
287      remove few PLOT_FIELD_XY calls outside initialisation.
288      remove few unnecessary BARRIER.
289    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
290      of salt_plume package in Southern Ocean
291    o pkg/thsice:
292     - fix hOceMxL in overlap (needed for sea-ice advection);
293       update output of experiment global_ocean.cs32x15.icedyn.
294    o pkg/seaice:
295     - make the (placeholder-)tracer IceAge a little more meaningful
296      by avoiding ridging of age due to convergent ice flow
297     - add diagnostics for surface temperature, atmospheric and oceanic
298       heat flux, and atmospheric and oceanic ice growth
299    
300    checkpoint61p
301    o eesupp (global_max & global_sum):
302     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
303     - remove starting & endding barrier (no longer needed)
304    o pkg/mdsio, writelocal:
305       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
306       (remove the STOP): uses shared buffer IO to store data from all threads
307       and then let master-thread write nThreads tiles.
308    o pkg/mdsio (read/write field):
309     - tiled IO done in 1 piece (all levels at a time);
310     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
311     - multi-threaded: allow to read/write local (non-shared) array
312       (was already working with singleCpuIO ; now works also without);
313       => no longer needs barrier call after reading a file (added inside
314       mds_read/write field).
315     - move barrier calls outside gather/scatter_2d to mds_read/write_field
316    o pkg/obcs/exf
317      - exf_getffieldrec.F: add a few ". _d 0" and
318                            add code to catch the case fldperiod = 0.  
319      - obcs_precribe_read.F: change if statements so that they match
320                              the variable type (_RL)
321      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
322        exf_iprec) as part of namelist EXF_NML_01
323    o pkg/mdsio:
324      - read/write tiled (local) files: read/write 1-level tile chunk at a time
325        (instead of segment of length sNx); expected to speed up tiled IO.
326    o pkg/exch2:
327      - take buffer copy from/to array out of S/R exch2_send/recv into new
328        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
329        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
330      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
331      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
332        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
333        including Topology header file (and common blocks).
334      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
335        remove 2nd exch call in exch2_s3d_rx (no longer needed).
336      - document S/R arg. list (+ update some comments)
337    o pkg/seaice:
338      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
339        temperature and humidity over sea ice based on climatological values.
340      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
341        of LSR (this change is expected to change the results slightly because now
342        it uses slightly difference moduli from the second last LSR solution, but
343        that is more consistent with the stress computations; this part of the code
344        is not tested in the verification experiments)
345      - fix diagnostics for flux of ice in case of B-grid
346      - turn strain rates eij and press into global fields within global
347        common block in SEAICE.h for more straighforward diagnostics
348      - fix diagnostics for principal stress components, press, zeta, eta
349        to give something meaning full
350    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
351      new output (all 4 tests) using default rotationPeriod.
352    o pkg KPP:
353      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
354      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
355        and normal grid from 1 to Nr)
356    o Fix computations of L4rdt in mom_calc_visc.F
357    o eesupp:
358      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
359      should be called before a "stop" if we know that all process are going
360      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
361    
362    checkpoint61o
363    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
364    o model/src/ini_curvilinear_grid.F:
365       compute angleSin/CosC when they are not read from a file
366    o pkg/seaice:
367       add pseudo time stepping for LSOR
368    o pkg/exch2:
369       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
370    o pkg/seaice:
371       Adding separate sea ice albedo, drag coefficients, and HO in Southern
372       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
373    o SingleCpuIO:
374       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
375    o pkg/seaice:
376       put exchanged variable in (local) common block for MPI+Multi-Threads
377       to work (necessary with exch1, and for now with exch2 too).
378    o verification: to get more experiments tested with mpi, mth and mpi+mth,
379      change tiling of:
380       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
381       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
382      update output of exp:
383       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
384       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
385      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
386                       (note: output.txt generated on faulks using only 1 tile)
387    o eesupp & mdsio (SingleCpuIO):
388     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
389       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
390       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
391     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
392     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
393       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
394    o pkg/exch2:
395     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
396       read parameter file "data.exch2" if it exists; otherwise try default regular
397       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
398     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
399       with new code (not to be used, just as a backup solution).
400     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
401       in utils/exch2/input.
402    
403    checkpoint61n
404    o eesupp & mdsio (SingleCpuIO):
405      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
406        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
407        receive real*4 array (instead of real*8) to read/write 32.bit files.
408        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
409         and remove new mapping S/R)
410    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
411      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
412        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
413        when using exch2. Add S/R to map global io-buffer to global model array.
414      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
415    
416    checkpoint61m
417    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
418      and add 3 other S/R for other types (R4,R8,RS).
419      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
420    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
421     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
422     - reduce number of macro definitions (keep only those which are used);
423       can always call directly the corrresponding S/R if needed.
424     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
425       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
426     Fixed wrong type of arg in:
427       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
428       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
429     To fix: global_sum of var in common block is wrong (multi-threaded) in:
430       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
431     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
432    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
433      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
434    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
435    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
436      edges are closed (zero depth); might happen with "blank tiles";
437      for now, disabled if using OBCS.
438    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
439      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
440    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
441      to reduce length of 1.D array print in STDOUT.
442    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
443      + use 48 tiles (16x8): this will allow to test "blank tiles".
444    o start to test MPI + multi-threaded (change testreport to skip tests
445      where number of tiles do not match).
446    o genmake2: add option "-omp" to turn on Open-MP ;
447      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
448    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
449      and keep the original tile numbering. Note: compatible with old
450      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
451    
452    checkpoint61l
453    o Overlaps had been forgotten in calculating ijk keys : fixed
454    o fix cyrus makedepend for gcc 4.4
455    o experiment fizhi-cs-aqualev20:
456      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
457      and generate new output. Note: new output is much closer to the old
458      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
459      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
460    o pkg/fizhi:
461     - change to avoid indices going deliberately over array-bounds
462     - remove unnecessary MPI stuff
463     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
464     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
465       does not go over array-bounds and therefore returns reliable output.
466     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
467       this S/R has 4 output arguments, which are used inside "get_alarm";
468       when it is called with the same variable "ndum" in place of several
469       output arguments, this produces weird side effect inside "get_alarm"
470      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
471       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
472       address) and produces error.
473    o tools/gemake2: (March 27-29 2009)
474      with option "-mpi": link *_mpi files from "MODS" dir (this is what
475      testreport does).
476    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
477    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
478       update lab_sea.lsr & lab_sea.salt_plume results
479    o pkg/seaice:
480      Major overhaul of the LSOR solver: change discretization from original
481      finite differences to finite volume. The old routine is still in the
482      file seaice_lsr.F and can be turned on with the CPP-flag
483      SEAICE_OLD_AND_BAD_DISCRETIZATION
484      Along with this change, the discretization of the strain rates is changed.
485      The same flag turns on the old discretization in seaice_calc_strainrates.F
486      All verification experiments with seaice are affected (except for
487      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
488      results by setting the above flag.
489      Further changes involve changes in defaults:
490      - ALLOW_FLOODING is defined and turned on by default
491      - SEAICEadvSnow = .true. is now the default
492      - SEAICEadvSalt = .true. is now the default
493      - SEAICEadvAge  = .true. is now the default
494      - SEAICE_clipVelocities  = .false. is now the default
495                                         (as per J. Zhang's recommendation)
496      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
497        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
498      - seaice_growth: replace computation of UG by a simple copy from wspeed
499    
500    checkpoint61k
501    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
502      seaice_lsr: fixed a few metric terms,
503                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
504                  add more debugging diagnostics
505      seaice_evp: removed superfluous many metric terms of FV discretization
506                  of stress divergence
507                  affects lab_sea, lab_sea.hb87
508      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
509                  of stress divergence for non-evp solver
510                  (this part is not tested anywhere)
511      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
512                  they were effectively only half slip
513                  affects lab_sea.hb87
514      updated all relevant verification experiments (except lab_sea//output_adm.txt
515        which was left over, but fails at level 7 & 6)
516    
517    checkpoint61j
518    o pkg/seaice: turn a few hard wired parameters into run time parameters
519    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
520      time in seconds as promised by the usints in seaice_monitor and exf_monitor
521    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
522      that are not cubed-sphere grids
523    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
524    o pkg/ctrl:
525      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
526    o non-hydrostatic (calc_gw.F):
527      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
528      update output of exp. global_ocean.cs32x15.viscA4
529    o remove backward compatibility for thetaMin,phiMin
530      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
531    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
532      interpolated wind field not only for curvilineargrid=.true., but also
533      for a rotated grid (rotateGrid=.true.)
534    o pkg/exf: add capability to bypass interpolation for runoff
535      by setting yet another CPP-flag
536    o eesupp/src, B-grid exchange:
537      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
538    o autodiff
539      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
540      allows to switch to single-prec common blocks;
541      corresponding switch occurs in tamc.h, integer isbyte
542      TAF store directivs "byte" and "kind" seem equivalent;
543      Most tamc.h have been updated correspondingly.
544    
545    checkpoint61i
546    o autodiff:
547      fix autodiff_sore/_restore indices for obcs
548      (spotted by I. Hoteit, M. Mazloff)
549    o pkg/autodiff, pkg/ctrl:
550      Add flag to reduce all tapelev I/O to single-prec.
551      In data.ctrl set
552        doSinglePrecTapelev = .TRUE.
553    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
554      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
555    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
556      real fresh water flux (not yet)
557    o pkg/mdsio & rw:
558     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
559     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
560    o pkg/flt:
561     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
562       init_fixed & ini_varia.
563     - clean-up & simplify linear interpolation S/R:
564       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
565     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
566     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
567     - add vert. coordinate & horiz. indices to output files.
568     - change vertical position in initial condition, from index to depth [m].
569     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
570       (easier to get to a curvilinear grid) ; delX,delY no longer used.
571    o pkg/ggl90: a few modifications:
572     - fix bottom boundary condition, and interpolation of KappaE
573       near top and bottom
574     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
575     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
576     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
577    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
578      (maintain temporary backward compatibility, until next checkpoint)
579    
580    checkpoint61h
581    o pkg/diagnostics with "periodic averaging diagnostics":
582      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
583    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
584    o pkg/obcs: fix loop ranges for balancing code
585    o pkg/flt:
586     - improve criteria for finding which tile owns a float.
587     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
588    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
589      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
590      with ocean biogeo)
591    o pkg/flt:
592     - do some cleaning and fix the restart ;
593     - add output.txt in flt_example/results to get this pkg tested.
594    o genmake2: add an EXTENDED_SRC option and flag.
595       for now, cannot be turned on on command line (only through genmake_local)
596    o pkg/mdsio: read/write vector:
597     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
598     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
599       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
600     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
601      (drop to 4 digits matching for grad). But this test does not look very
602      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
603    
604    checkpoint61g
605    o pkg/flt:
606      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
607       + make OPTIONS file more standard.
608      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
609      - fix _BYTESWAPIO CPP-Flag
610      - standard reading of file-parameter "data.flt"
611      - fix argument list of S/R FLT_RESTART
612      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
613    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
614    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
615      a still unfixed compiler/optimization bug
616    
617    checkpoint61f
618    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
619      update results of global_ocean.cs32x15.icedyn test.
620    o move getcon.F from model/src to pkg/fizhi.
621    o pkg/exf: add parameter for extrapolation of temp up to the surface
622       and option to prevent negative evap (in bulk_largeyeager04 only).
623    o Prather Advection scheme: fix tracer conservation for divergent flow
624      (e.g., when using NonLin Free-Surface).
625    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
626    o gmredi (Visbeck-variable-K):
627     - add more parameters to Visbeck-variable-K.
628     - use a 5 points average for dSigmaR in Visbeck-K calculation
629       (more "homogenous": same stencil and same weights as in dSigmaH)
630     - update output of ideal_2D_oce experiment.
631    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
632      (#undef REAL4_IS_SLOW)
633     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
634       coordinate variable
635     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
636       (surface forcing fields), removes some of the functionality
637     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
638     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
639       probably not all: copy _RS surface flux fields to RL field before
640       calling DIAGNOSTICS_FILL
641     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
642       real*4 (CALL EXCH_*_RS) versions.
643     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
644       (generate new output).
645    
646    checkpoint61e
647    o gmredi (Visbeck-variable-K):
648      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
649      - change computation of Visbeck-K where Slope > Smax :        
650        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
651        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
652    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
653      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
654    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
655    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
656      does not become too large (to avoid precision problems in implicit-diffusion
657      solver); update ideal_2D_oce output.
658    o pkg ggl90:
659      - in ggl90_cal.F: compute only one set of visc/diff, used to
660        step forward TKE/T/S/momentum
661      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
662        have Prandlt =1)
663    o gmredi (fm07):
664      - add lower limit on Transition layer thickness + lower limit on 1/lambda
665      - allow to set few more params from data.gmredi
666    o pkg ggl90:
667          - add missing sqrt(2) factor in computation of mixing length
668            scale in ggl90_calc.F
669            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
670    
671    checkpoint61d
672    o adjoint modifs
673      - adapt to new field rhoInSitu
674      - allow to revert from StoreDynVars2D, StoreDynVars3D
675        to individual fields
676        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
677    o store 3-D (in-situ) density in commom block (DYNVARS.h)
678     - save 1 rho computation.
679     - no longer modify T & S inland when using down_slope pkg.
680    o gad_som : allow to switch to SOM advection for T & S without corresponding
681      pickup files (using new S/R: MDS_CHECK4FILE).
682    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
683      (for useSingleCpuIO to work in multi-threaded)
684    o pkg/shelfice:
685     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
686       with SHELFICEtopoFile in data.shelfice
687     - move code for reading ice shelf topography and modifying hFacC into separate
688       subroutines of the shelfice package
689     - separate initialisation of "fixed" and "variable" variables
690     - kTopC is not (yet) replaced by kSurfC, although this is possible
691    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
692    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
693      and rename:
694      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
695      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
696    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
697    
698    checkpoint61c
699    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
700      to add mass source/sink of fluid in the interior (3-D generalisation
701      of oceanic real-fresh water flux).
702    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
703    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
704    o new pkg: down_slope
705      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
706      - presently, modify T & S inland (dwnslp_calc_rho.F).
707        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
708      - implementation for ocean in P-coords not tested.
709      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
710    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
711      (to facilitate conversion of oceanic pkg to p-coordinate).
712    o change FIND_RHO to FIND_RHO_2D :
713      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
714    o new pkg: cheapaml
715    
716    checkpoint61b
717    o exch2:
718      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
719      - no longer depend on the order sequence (N,S,E,W).
720      - 3rd exchange no longer needed (tested with 24 tiles).
721      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
722      - exch_UV_A-grid readily available (but not yet tested).
723      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
724      (both are no longer needed) in exch_uv: no effect in forward run; but
725       get truncation error differences with adjoint exch.
726    o exch2:
727     - change index-bounds storage (moved from target to local tile,
728       more intuitive this way) ; rename/remove some variables.
729     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
730    
731    checkpoint61a
732    o exch2/matlab-topology-generator:
733      fix bug in index bounds for N-S internal exchange (hard to tell if this
734      had any effect on the solution).
735    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
736      is exceeded
737    o testreport: modify syntax of awk, so that it works also with
738      awk, and not only with nawk and gawk
739    
740    checkpoint61
741    o autodiff
742      Change default for TAF usage by removing argument '-nonew_arg'
743      This changes TAF subroutine argument list (ordering of active var.)
744      Omission of this flag leads to incompatibility w.r.t. TAMC
745      To restore TAMC-compatibility, need following modifs:
746      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
747      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
748      Tested TAF version is 1.9.22
749      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
750    
751    checkpoint60
752    --->>> This is the last checkpoint for which generating the adjoint
753    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
754    --->>> by default.
755    --->>> Future checkpoints will ommit this flag by default.
756    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
757    o pkg/grdchk: Add gradient check to etan0 perturbations.
758    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
759    o pkg/autodiff: more flexibility in zeroadj.
760      model/src: modifying do_oceanic_phys.F accordingly.
761    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
762    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
763      special setup of gmredi for which the adjoint is stable
764      enough for parameter optimization.
765    o bridging the gap between eddy stress and GM.
766      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
767          along with a change in CPP option (now ALLOW_EDDYPSI).
768      -> when using GM w/ GM_AdvForm:
769          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
770          is applied either in the tracer Eq. or in momentum Eq.
771          depending on data.gmredi (intro. GM_InMomAsStress).
772      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
773      The key modifications are in model/src/taueddy_external_forcing.F
774      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
775    
776    checkpoint59r
777    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
778      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
779      fix option to read coriolis(@ cell-corner) from files with CS-grid.
780    o pkg/mnc: add some attributes to standard 1D-coordinate variables
781    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
782      mass points, when using mnc for output
783      - add runtime parameter (missing_value, missing_value_int) to override
784        default (which is the value of getcon('UNDEF'))
785    o pkg/mnc: prepare mnc for the actual use of missing values with the
786      diagnostics package: small fix in mnc_cw_readwrite.template and more
787      initialisation of never used fields
788      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
789      versions
790    o pkg/thsice/thsice_ini_vars.F added default initial values so that
791      thermodynamics sea ice solver does not blow up when some initial fields
792      are missing.
793    o move from external_forcing_surf.F to ini_forcing.F
794      the p-coord. hack consisting in using pLoad to set phi0surf ;
795      update output of tutorial_global_oce_in_p (affected @ truncation level).
796    o Freshen up a bit hs94.1x64x5, notably:
797      remove rotationPeriod and tRef=5*0. (adjoint only), and add
798      exactConserv=.TRUE.
799    o pkg/generic_advdiff:
800      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
801      applies to files where Temperature & Salinity 2nd Order moments are used.
802    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
803      this uses a dynamically allocated internal state data structure
804      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
805      and requires a fortran 90 compiler
806    
807    checkpoint59q
808    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
809       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
810    o Refresh tutorial_global_oce_biogeo, notably:
811      - change bathymetry (put back seamounts in ACC, use hFacs)
812      - change EOS (POLY3 --> JMD95Z)
813      - use Bryan-Lewis vertical diffusivity
814      - use multidimensional advection
815      - remove old virtual virtual in dic pkg, now done through ptracer pkg
816      - change a couple of parameters in dic pkg
817    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
818    o pkg/obcs: change default to OBCSfixTopo = .true.,
819      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
820      - replace "debugMode" with "debugLevel .GE. debLevB"
821    o implementation of TAF directives for gchem,cfc,dic
822    o remove "exp5" (replaced by tutorial_deep_convection).
823    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
824      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
825      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
826      --> changes results in exp4, seaice_obcs
827    o tutorial_deep_convection :
828      update the set-up and increase resolution and domain size ; start
829      from pseudo initial conditions = output at t=120mn in order to see
830      something happening when running testreport.
831    o pkg/seaice: add os7mp as an advection scheme
832                  add check for advection schemes
833                  add a flag for restoring T and S underneath sea ice
834    o pkg/my82: add netcdf-support and diagnostics
835    o thsice pkg:
836      - Now hsMax limits snow height by turning it into ice following
837        flooding scheme (and now conserving energy)
838      - Slight rewriting of the formula in thsice_calc_thick.F
839      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
840      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
841    
842    checkpoint59p
843    o gchem / dic / cfc :
844      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
845      - add new parameter files: "data.dic" & "data.cfc" ;
846      - various re-arrangement in initialisation & header file ;
847      - fix tutorial_global_oce_biogeo for multi-threaded test.
848    o pkg/dic: test for "pickup_dic" file when restarting ;
849      if no pickup-file, can restart with a re-initialised pH (same as it did
850      before) providing pickupStrictlyMatch is set to False.
851    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
852      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
853    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
854      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
855    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
856     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
857       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
858    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
859       scheme to use for vorticty-term ;
860     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
861       (with default selectVortScheme, return to original discretisation)
862     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
863    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
864    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
865      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
866      also fix diagnostics VISCAHW & VISCA4W.
867    
868    checkpoint59o
869    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
870    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
871      move a few statemens out the main loop into separate loops
872    o pkg/shelfice:
873      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
874        (kg/m^2/s), does not break tests, because in verification/isomip,
875        rhoConstFresh=rhoConst (by accident)
876      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
877      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
878        new file model/src/seawater.F, so that they are available for all pkgs.
879      - convert potential temperature into in-situ temperature. This changes the
880        isomip tests => update tests
881    o add a flag writePickupAtEnd (default=true) to be able to suppress
882      writing a pickup at the last timestep
883    o tools/mpack-1.6 :
884      - disable automake (not working) and autoconf (not needed).
885      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
886        also cleaner with much less compilation warnings.
887    o pkg/profiles:
888      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
889      (for "less than 32 characters name" compiler requirement)
890    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
891      conditions that have a different sampling frequency than S/T/U/V obcs
892    o pkg/diagnostics (stats-diags):
893      - fix global Min/Max in case 1 processor get only empty tiles
894    o genmake2: replace (4 times)
895         make genmake_tc_1.o >> genmake_warnings 2>&1
896      with
897         COMM="$CC $CFLAGS -c genmake_tc_1.c"
898         echo $COMM >> genmake_warnings
899         $COMM >> genmake_warnings 2>&1
900      to make genmake2 always see the value of CC as specified in the optfile.
901    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
902      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
903      - modify verification advect_cs test to test SOM-advection on CS-grid.
904    o pkg/ctrl:
905      - Rewrite of ctrl_map_ini_ecco.F,
906        introducing a generic routine (ctrl_map_ini_gen.F).
907      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
908    
909    checkpoint59n
910    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
911      number in dedicate array "hdiag":
912      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
913        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
914      - many small changes (integer format) for large number of diagnostics
915      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
916        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
917    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
918      usingSphericalGrid, this allows to define the rotated grid coordinates
919      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
920      geographical coordinates according to the inverse of the rotation defined
921      by the Euler angles, so that Coriolis parameter and online-interpolation by
922      exf works with the geographical coordinates on XC/YC/XG/YG.
923      Naturally, this feature does not work with all packages, so some
924      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
925      profiles), because there the coordinates are assumed to be regular
926      spherical grid coordinates.
927    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
928      - introduce isopycnal diffusion coefficient control.
929    o tools/adjoint_options:
930      - additional control vector components.
931    o pkg/mnc: have mnc create marginally meaning full coordinate variables
932      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
933    o pkg/mypackage:
934      - add example of read/write pickup for state-var ;
935      - add entry points to the main code for state-vars diags & write-pickup.
936    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
937      transitions for useExfYearlyFields
938      - add new subroutine that determines the file to read from for
939        use*YearlyFields = .TRUE. and .FALSE.
940      - add a verification experiment to global_with_exf that tests
941        useExfYearlyFields with USE_EXF_INTERPOLATION defined
942    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
943      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
944      subroutines (which could be generated from a template, because they are
945      almost identical), for now they are included in obcs_prescribe_read.F for
946      simplicity
947    o pkg/exf:
948      - add a little more diagnostic to exf_interp_read (in analogy to
949        mds_read_field, can be turned off with debugLevel < debugLevA=1)
950      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
951        ugly but fast by unrolling short inner loops, inserting a unroll=8
952        directive in routine lagran, and splitting a loop and making do while the
953        outermost loop (the latter requires the intoduction of index arrays)
954    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
955    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
956      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
957    o verification/seaice_obcs: updated for restart test and latest options
958    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
959      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
960      for now this is only available for the C-grid code and also within
961      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
962    
963    checkpoint59m
964    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
965      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
966    o gad_som : fix flux output (& diagnostics) to have same units as other  
967      advection scheme fluxes (was previously multiplied by deltaT).  
968    o added verification/seaice_obcs both to test seaice open boundaries
969      and to provide an example matlab scrpt for generating them
970    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
971    o pkg/salt_plume: clean up salt_plume_frac.F to
972      remove redundancy in PlumeMethod 1 and 4
973    o pkg/kpp: added saltplume diagnostics
974    o pkg/obcs and pkg/seaice:
975      - do not set uice and vice to zero when OB*icefile are unspecified
976      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
977      - moved seaice tracer obcs after call to seaice_growth
978    o pkg/salt_plume: added various options for salt plume depth
979      criterion and for vertical distribution of the salt
980    
981    checkpoint59l
982    o pkg/ptracers: new version of ptracers pickup:
983      read meta file and write only fields which are needed to restart.
984      ( same logic as main pickup file ; also using pickupStrictlyMatch )
985    o pkg/seaice:
986      - add timescale for melting due to warm mixed layer as a means of
987        setting SEAICE_availHeatFrac more conveniently
988      - add a CPP-flag/runtime parameter check for flooding algorithm
989      - reformulated availHeat in seaice_growth.F to be independent of AREA
990    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
991      unit changes
992    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
993    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
994      SX vector computer.
995    o pkg/seaice:
996      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
997        seaice forcing fields can now be read only through pkg/exf
998      - removed some unused halos
999    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
1000    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
1001      or U/VICE from U/VWIND before computing U/VSTRESS
1002    
1003    checkpoint59k
1004    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
1005      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
1006    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
1007      all experiments pass when compile with un-initialised var. checking option.
1008    o added pkg/salt_plume
1009    o script to test restart (for now, in MITgcm_contrib/jmc_script)
1010    o pkg/seaice: new read/write pickup version.
1011      read meta file and write only fields which are needed to restart.
1012      ( same logic as main pickup file ; also using pickupStrictlyMatch )
1013    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
1014    o lab_sea.hb87: modify the domain & update output.hb87.txt :
1015      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
1016      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
1017      process. Fixed here by closing the domain at the Northern boundary.
1018    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
1019    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
1020      a set of consecutive levels in/from a 3-D array.
1021    o pkg/ptracers:
1022      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
1023      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
1024    
1025    checkpoint59j
1026    o in pkgs: dic, obcs, offline, rbcs:
1027      standard way to compute coeff. for time interpolation between 2 time reccords
1028      which retains full precision (& make results less dependent on compiler).
1029      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
1030    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
1031      packages instead of reading ice cover and wind speed separately
1032    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
1033     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
1034      to allow to compile customized code before the update)
1035    o cleaning-up:
1036      - fix CPP instruction syntax in pkg/obcs
1037      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
1038        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
1039      - fix some threads issue in IO parts.
1040    o pkg/dic:
1041      - add tons of "_d 0" (--> much better testreports !)
1042       and then update outputs of tutorial_global_oce_biogeo
1043    o pkg/mom_fluxform:
1044      add a special version of momentum advection intended to conserve momentum
1045      next to a bathymetry step or a coastline edge. (default = off = #undef)
1046    o new read/write pickup version:
1047      - for now, only implemented for main (mdsio) pickup file.
1048      - write out only what is needed to restart; merge pickup_nh , pickup_ph
1049        and main pickup together.
1050      - read meta file; read only what is needed to restart; stop if a field
1051        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
1052        if it make sense (even if the restart is not perfect).
1053      - if no meta file, assume that pickup to read corresponds exactly to
1054        a pickup that would currently be written.
1055      - read pickup written in the old format (until checkpoint59i) if it
1056        recognizes an old meta file (no field-list).
1057      - add a meta file in exp. which starts from a pickup: 2 cases:
1058        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
1059         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
1060        b) a meta file describing the content of the associated pickup file
1061         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
1062    o pkg/mdsio & pkg/rw:
1063      - new routine to read a meta file ; new set of routine to read
1064        Multiple-fields file (with meta file).
1065    o added open boundary conditions capability for seaice
1066        HSNOW, HSALT, UICE, and VICE
1067    
1068    checkpoint59i
1069    o adjoint:
1070      * fix multiDimAdvection adjoint
1071        (partial recomputation problem by TAF for fVerT(:,:,kDown)
1072        and comlev1 size definition (maxpass vs. max. number of tracers)
1073      * verification/global_ocean.90x45x15 adjoint now tests
1074        NLFS and multiDimAdvection using DST3 (=30)
1075      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
1076    o pkg/kpp: add "_d 0" to real constant (if missing);
1077      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
1078      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
1079    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
1080      for internal parameters related to restart process (formerly from PARAMS.h)
1081      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
1082    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
1083      as argument. (only atm2d & obcs write_pickup have not yet been updated)
1084    o pkg/monitor:
1085      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
1086      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
1087      - account for deep Atmosphere factor and density factor (anelastic)
1088    o added open boundary conditions capability for seaice HEFF and AREA
1089    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
1090      thermodynamics
1091      - requires a little reorganization, which affects the testreport results
1092        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
1093        so that now the conservative form is tested
1094      - add a few comments
1095    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
1096    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
1097    o add new diagnostics to seaice: advective, diffusive fluxes (only for
1098      multidim-advection, for scheme 2 they are not filled) and transports,
1099      thermodynamic growth rates
1100    o change units of EmPmR (inside the code, + within coupling interface)
1101      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
1102      Affects results @ truncation level (cg2d match) and update output of
1103       experiments: lab_sea(6), global_ocean.90x40x15(10),
1104      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
1105      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
1106      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
1107      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
1108    
1109    checkpoint59h
1110    o pkg/exf:
1111      - improve vectorization by moving if-statement out of loops in
1112        exf_mapfields, exf_radiation
1113      - exf_bulkformulae.F: introduce 2D fields and vectorize code
1114    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
1115    o testreport:
1116      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
1117        monitor & update offline_exf_seaice exp. output.
1118      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
1119    o pkg/seaice:
1120      - bug fix in the evp solver: boundary conditions were affected be
1121        masking of zMax/zMin (changes results)
1122      - minor bug fix in boundary conditions in seaice_calc_strainrates
1123        (changes results for no_slip)
1124      - seaice_lsr.F: make interpolation of eta dependent on boundaries
1125      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
1126      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
1127        stress formulation and no-slip boundary conditions
1128    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
1129      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
1130    o pkg/seaice: a first HSALT time stepping equation has been checked in
1131    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
1132      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
1133      without requiring DO-IF statements
1134    o pkg/thsice:
1135      use continuous power-law function for partition of energy between lateral
1136      melting/freezing and thinning/thickening ; old code using step function
1137      still available with #undef THSICE_FRACEN_POWERLAW
1138      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
1139    o testreport: change AD testing : check against results/output_adm.txt
1140      using same scripts as for forward test.
1141    
1142    checkpoint59g
1143    o adjoint testing: in preparation for changing testreport:
1144      - output format: cost and grad written on separated lines
1145      - ad output results in directory "results" (instead of "results_ad")
1146    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
1147    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
1148    o pkg/ecco: allow user defined cost function contributions
1149    o testreport:
1150      Allow to choose (per experiment) the list of tested output variables
1151       and the main variable (used to issue a pass/FAIL ) ;
1152      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
1153      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
1154      Also modify printing of summary:
1155       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
1156       b) echo the list of tested variables in the individual summary.txt of
1157          each experiment.
1158    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
1159      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
1160      (but still depend on the tile decompostion of the domain).
1161    o pkg/seaice: change a discretization detail to make the B-grid code
1162      "more symmetric". This change is likely to remove all "ridges/leads" that
1163      where quasi-aligned with the grid in B-grid solutions. It may also be
1164      the solution to the stress coupling issues with the B-grid.
1165    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
1166      remove .cvsignore from input dir. (since testreport no longer run here).
1167    o pkg/thsice:
1168     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1169     - fix reshaping of sea-ice just after advection:
1170       melt all the ice only if ice-volume is too small.
1171     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1172       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1173     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1174    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1175      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1176    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1177      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1178      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1179      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1180      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1181      -> update output.txt
1182    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1183     this affects truncation error: -> update output.txt of exp:
1184      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1185      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1186    
1187    checkpoint59f
1188    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1189    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1190      a bounded range (in forward mode)
1191    o pkg/ecco, ctrl, autodiff and mom_common:
1192     internal parameter controls, completements of implementations
1193    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1194    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1195      (not seem any difference in testing results).
1196    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1197       at face corners.
1198    o pkg/generic_advdiff:
1199     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1200      loop range indices for computing vertical advection tendency
1201      and do the calculation in the interior only (no overlap) ;
1202      for now, only implemented for SOM advection (to save CPU time).
1203     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1204    o exch2 adjoint
1205      First set of changes:
1206      - add exch2 hand-written adjoint templates
1207      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1208        This will require cleanup in pkg/autodiff/*.F
1209        (changed routines currently kept separate in verif. code/)
1210      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1211        that used to hide exch2 or cubed-sphere specific code
1212        (commented via 'cph-exch2')
1213    o pkg/seaice
1214      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1215    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1216       output of global_ocean.cs32x15.thsice .
1217    
1218    checkpoint59e
1219    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1220      for B-grid vector (not yet tested) and C-grid vector (<- only used
1221      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1222    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1223      (#ifdef ALLOW_SALT_PLUME)
1224    o gather_2d/scatter_2d: removed halo regions
1225    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1226      scheme and the corresponding test case (under front_relax dir). For now,
1227      only available with Skew-flux form and not yet tested in realistic set-up.
1228      adjoint: store directives updated, but gradient checks deteriorated,
1229      so maybe GM/Redi adjoint is now broken.
1230    o seaice adjoint
1231      * add AREA, HEFF, HSNOW as control variable
1232        (should not change lab_sea results)
1233      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1234    o pkg/seaice:
1235      * added computation of saltFlux in seaice_growth;
1236        For time being, sea ice salinity is assumed constant
1237        contribution of snow flooding to freshening of sea ice is neglected.
1238        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1239        defaults to 0.0 in order to maintain backward compatibility.
1240        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1241      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1242      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1243        heat content used to melt or grow ice
1244      * commented out cap of HICE: it helps keep ice thinner
1245      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1246      * applied OBCS T/S mask to HEFFM sea ice mask
1247    
1248    checkpoint59d
1249    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1250     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1251     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1252    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1253     and change default value of parameter "GM_Small_Number";
1254     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1255       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1256       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1257    o pkg/ecco: cost function when applying pkg/smooth to controls
1258    o pkg/ctrl: add forcingPrecond run time parameter
1259    o pkg/seaice:
1260     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1261     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1262       changes verification/lab_sea
1263     - rearrange implicit part of u-equation in LSR solver to make it easier to
1264       read, understand, and debug. This causes changes at the truncation level.
1265     - fix (serious) bug in the boundary conditions (sign error in the implicit
1266       part) of the LSR solver. Changes all LSR results.
1267     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1268       is initilized with small values - does not change lab_sea results.
1269     - added HsnowFile initialization capability
1270    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1271     initialization of pkg/smooth and application to control vector
1272    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1273    o dependencies: pkg/profiles requires pkg/cal
1274    o pkg/profiles:
1275     - added option ALLOW_PROFILES_GENERICGRID
1276         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1277         that interpolation information (grid points and coefficients) is provided
1278         within the netcdf input files.
1279         -> sample matlab scripts can be found in MITgcm_contrib/gael
1280         that allow you to prepare netcdf input files.
1281     - also modified: cleaner include statements, cleaner error print statements,
1282       cleaner stops when error, and more tests of the netcdf input files consistency.
1283    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1284    o pkg/seaice:
1285     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1286       requires a new routine: seaice_diagnostics_fill.F
1287     - make sure that seaice does not move if not forced (pressure replacement
1288       method, Hibler and Ip, 1995), changes results
1289     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1290     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1291       It is turned off by default (=-1.), because it changes the results.
1292     - make it possible to read AREA from a file, too.
1293    
1294    checkpoint59c
1295    o add S/R and diagnostics for oceanic mixed-layer depth
1296    o move GMRedi call after all vertical mixing schemes (including KPP)
1297    o pkg/thsice:
1298     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1299      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1300    o pkg/obcs:
1301     - bug fix for balance code
1302    o pkg/seaice:
1303      - allow values of SEAICE_elasticParm > 1
1304      - add new parameter SEAICE_evpTauRelax as an alternative
1305        to SEAICE_elasticParm
1306      - make lsr boundary conditions free slip (by default), changes result
1307      - add code for no slip boundary conditions for lsr
1308      - set minimum of zeta to zero (and not 4e8) (changes results)
1309      - add a cap on AREA after advecting AREA if seaice_growth is not called
1310    o change calculation of Visbeck K:
1311      - no longer depend on tapering scheme; instead, compute slope (limited
1312        by GM_maxSlope). this is equivalent to what was comuted before with
1313        clipping or linear tappering.
1314      - fix vertical averaging (wrong by 1/2 level)
1315      - leave the old version (but will not be maintained) within
1316        #ifdef OLD_VISBECK_CALC / #endif
1317      - update output of exp. ideal_2D_oce
1318    o change error catch in calc_r_star to improve vectorization
1319    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1320      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1321    o adjoint:
1322      Re-organized adjoint checkpointing according to Matt Mazloff
1323      (but with modifs/completions/cleanups)
1324      Storing is now bundled into large arrays to optimized I/O
1325      (and second step in cleanup of the_main_loop)
1326    
1327    checkpoint59b
1328    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1329      - export/import (between ocean & coupler) fields needed for ocean DIC.
1330    o pkg/seaice:
1331      - get rid of three more exchanges seaice_calc_viscosities (required
1332        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1333      - bug fix in seaice_ocean_stress (update of lab_sea required)
1334      - reduce loop boundaries to necessary minimum also in seaice_evp
1335      - go back to the old way of computing deltaC/Z as the adjoint likes that
1336        better
1337    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1338      passive tracer to an Age Tracer) + update output.txt
1339    o pkg/exf:
1340      - implement A-grid / C-grid selection for wind-stress input files.
1341      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1342      for now, in exf_bulk_largeyeager04.F only :
1343      - change implementation for case where windspeed + 2. components wind-stress
1344        are read-in. AND use rhoConstFresh to convert evap.
1345    o pkg/seaice:
1346      - use correct EXCH_UV for wind-forcing (on A-grid).
1347      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1348        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1349    o pkg/exf:
1350      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1351      EXF_INTERPOLATION:
1352      - merge global_with_exf/code version of exf_interp_read.F
1353        to the main code ;
1354      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1355        reading the file ; Important: This options needs to be defined to recover
1356        previous code.
1357        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1358      - no longer loose real*8 precision along the way when using exf_iprec=64.
1359    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1360      - change discretisation of evp-solver in order to avoid another exchange
1361        (changes lab_sea) and clean up a little
1362      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1363        help the adjoint (this also changes the results slightly)
1364      - add a few "_d 0" where they had been missing in seaice_evp.F
1365      - cleaning up: remove unused seaice_calc_rhs.F
1366    o pkg/exf: some cleaning-up:
1367      - change various "constants" into runtime parameters
1368      - cleaned-up Large&Yeager04 routine which should eventually
1369        replace exf_bulkformulae.F (changed names of S/R and CPP)
1370        and merged various ALLOW_ATM_WIND options
1371     only used with thsice pkg (in thsice_get_exf.F):
1372      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1373        which are used when useStabilityFct_overIce=TRUE (= the default)
1374      - change default values of ice & snow emissivity and scale downward LW
1375        by ice & snow emissivity.
1376    o pkg/thsice:
1377     fix few little problems, in thsice_calc_thickn.F:
1378      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1379      - melt only laterally if hIce < hThinIce (as the comments say)
1380      and in thsice_extend.F:
1381      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1382      - start to form ice as soon as the minimum ice-volume is reachable.
1383     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1384      and cpl_aim+ocn
1385    o pkg/kpp
1386     - move computation of surface related input fields to KPP into a new
1387       subroutine kpp_forcing_surf.F
1388     - remove wrong (within bi,bj loops) EXCH calls.
1389     - little cleaning (add argument myThid in last position, cvs header ...)
1390     - for now, fix conservation problem by exchanging KPPviscAz (may not
1391       be the best fix)
1392    o pkg/seaice
1393     - check for inconsistent evp parameter/cpp-flag combination
1394     - remove leftover errIO flat for obsolete name list error handling
1395    o OpenAD
1396     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1397    
1398    checkpoint59a
1399    o pkg/seaice: some parameter clarifications and a little bit of clean up
1400    o pkg/thsice: rename run-time parameters:
1401       himin       -> hIceMin
1402       himin0      -> hThinIce
1403       hihig       -> hThickIce
1404       i0          -> i0swFrac
1405       transCoef   -> bMeltCoef
1406       frac_energy -> fracMelting
1407      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1408       with default values (for now) that do not change the results.
1409      remove old version of thsice vars advection in pkg/seaice.
1410    o in FFIELDS.h:
1411      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1412      - make pLoad & sIceLoad always available (but still only used if
1413         ATMOSPHERIC_LOADING is #define).
1414    o pkg/kpp: replaced _KPP_RL with _RL
1415    o bug fixes for vertical diffusivity computations when both KPP and
1416        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1417        are no longer updating the vertical diffusivity array
1418        (passed as argument) but are (re-) setting those arrays.
1419    o pkg/seaice: fix bug in evp solver, while doing that
1420      - change (improve?) discretization of stress computations for both
1421        cgrid-lsr and evp solver
1422      - add a new routine to compute strain rates
1423      - the above changes lab_sea results
1424      - add no slip conditions for evp solver (off by default), lsr-version
1425        may follow
1426      - fix exchange for shear at Z-points (does not change lab_sea)
1427      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1428        (to force the user to pick a time step since there is not "safe" way
1429        of choosing it)
1430      - add principal stress diagnostics
1431      - rearrange fields for evp a little to avoid having to call a: too many
1432        exchanges and b: exchanges for stress trensor components which we do
1433        not have.
1434      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1435        of evp, complete rewrite for lsr case (latter is does not yet work
1436        in all cases)
1437    o pkg/kpp: add code to have mixing in shelf ice caverns
1438      - add myThid to all kpp routines (long overdue)
1439    
1440    checkpoint59
1441    o pkg/exf:
1442      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1443        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1444      - move exf header files from lower_case.h to UPPER_CASE.h ;
1445        add missing cvs Header & Name
1446      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1447      - add namelist param. selectStressGridPosition, exf_monFreq
1448      - retire many _CLIM routines, and remove data.exf_clim
1449        + params moved to data.exf
1450        + climsst, climsss now handled by exf_set_gen, i.e.
1451          climss?period=0 refers to constant field,
1452          climss?period=-12 to monthly forcing
1453      - split up namelists in data.exf
1454    o pkg/seaice:
1455      - remove seaice_exch and seaice_exch_uv
1456      - remove superfluous exchange of theta
1457      - add myThid to seaice_budget_ocean/ice
1458      - add new interface for atmospheric wind forcing (C-grid only)
1459        + new routine
1460        + two new field (taux, tauy for stress over ice)
1461        + removed one global field (DAIRN) for C-grid case only
1462    o pkg/thsise
1463      - 2nd set of modifs for thsice adjoint in conjunction with exf
1464    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1465    
1466    checkpoint58y_post
1467    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1468      vertical diffusivity, similar to that in MOM4; turned on using
1469      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1470      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1471    o Added capability for 3D specification of background vertical diffusion
1472      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1473      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1474      "data" file that contains the 3D vertical diffusivity coefficients.
1475    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1476      - add code within pkg thsice to advect & diffuse sea-ice fields
1477      similar to (and will replace) what has been added in  seaice_advdiff.F,
1478      but: - conserving Mass, Heat & Salt.
1479           - better when using non-linear advection scheme (not yet fully tested)
1480           - can also be used in atmospheric set-up (for now, only the diffusion).
1481    
1482    checkpoint58x_post
1483  o IO option for global-file compact format:  o IO option for global-file compact format:
1484    - add options when generating topology (utils/exch2/matlab-topology-generator)    - add options when generating topology (utils/exch2/matlab-topology-generator)
1485    - add I/O capability (pkg/mdsio).    - add I/O capability (pkg/mdsio).
# Line 1421  o add two new packages Line 2897  o add two new packages
2897    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2898    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2899      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2900      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2901  o add offline package  o add offline package
2902  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2903    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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