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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1107 by jmc, Tue May 26 23:28:40 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o eesupp:
8      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
9      should be called before a "stop" if we know that all process are going
10      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
11    
12    checkpoint61o
13    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
14    o model/src/ini_curvilinear_grid.F:
15       compute angleSin/CosC when they are not read from a file
16    o pkg/seaice:
17       add pseudo time stepping for LSOR
18    o pkg/exch2:
19       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
20    o pkg/seaice:
21       Adding separate sea ice albedo, drag coefficients, and HO in Southern
22       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
23    o SingleCpuIO:
24       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
25    o pkg/seaice:
26       put exchanged variable in (local) common block for MPI+Multi-Threads
27       to work (necessary with exch1, and for now with exch2 too).
28    o verification: to get more experiments tested with mpi, mth and mpi+mth,
29      change tiling of:
30       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
31       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
32      update output of exp:
33       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
34       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
35      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
36                       (note: output.txt generated on faulks using only 1 tile)
37    o eesupp & mdsio (SingleCpuIO):
38     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
39       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
40       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
41     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
42     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
43       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
44    o pkg/exch2:
45     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
46       read parameter file "data.exch2" if it exists; otherwise try default regular
47       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
48     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
49       with new code (not to be used, just as a backup solution).
50     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
51       in utils/exch2/input.
52    
53    checkpoint61n
54    o eesupp & mdsio (SingleCpuIO):
55      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
56        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
57        receive real*4 array (instead of real*8) to read/write 32.bit files.
58        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
59         and remove new mapping S/R)
60    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
61      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
62        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
63        when using exch2. Add S/R to map global io-buffer to global model array.
64      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
65    
66    checkpoint61m
67    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
68      and add 3 other S/R for other types (R4,R8,RS).
69      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
70    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
71     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
72     - reduce number of macro definitions (keep only those which are used);
73       can always call directly the corrresponding S/R if needed.
74     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
75       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
76     Fixed wrong type of arg in:
77       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
78       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
79     To fix: global_sum of var in common block is wrong (multi-threaded) in:
80       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
81     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
82    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
83      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
84    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
85    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
86      edges are closed (zero depth); might happen with "blank tiles";
87      for now, disabled if using OBCS.
88    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
89      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
90    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
91      to reduce length of 1.D array print in STDOUT.
92    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
93      + use 48 tiles (16x8): this will allow to test "blank tiles".
94    o start to test MPI + multi-threaded (change testreport to skip tests
95      where number of tiles do not match).
96    o genmake2: add option "-omp" to turn on Open-MP ;
97      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
98    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
99      and keep the original tile numbering. Note: compatible with old
100      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
101    
102    checkpoint61l
103    o Overlaps had been forgotten in calculating ijk keys : fixed
104    o fix cyrus makedepend for gcc 4.4
105    o experiment fizhi-cs-aqualev20:
106      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
107      and generate new output. Note: new output is much closer to the old
108      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
109      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
110    o pkg/fizhi:
111     - change to avoid indices going deliberately over array-bounds
112     - remove unnecessary MPI stuff
113     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
114     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
115       does not go over array-bounds and therefore returns reliable output.
116     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
117       this S/R has 4 output arguments, which are used inside "get_alarm";
118       when it is called with the same variable "ndum" in place of several
119       output arguments, this produces weird side effect inside "get_alarm"
120      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
121       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
122       address) and produces error.
123    o tools/gemake2: (March 27-29 2009)
124      with option "-mpi": link *_mpi files from "MODS" dir (this is what
125      testreport does).
126    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
127    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
128       update lab_sea.lsr & lab_sea.salt_plume results
129    o pkg/seaice:
130      Major overhaul of the LSOR solver: change discretization from original
131      finite differences to finite volume. The old routine is still in the
132      file seaice_lsr.F and can be turned on with the CPP-flag
133      SEAICE_OLD_AND_BAD_DISCRETIZATION
134      Along with this change, the discretization of the strain rates is changed.
135      The same flag turns on the old discretization in seaice_calc_strainrates.F
136      All verification experiments with seaice are affected (except for
137      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
138      results by setting the above flag.
139      Further changes involve changes in defaults:
140      - ALLOW_FLOODING is defined and turned on by default
141      - SEAICEadvSnow = .true. is now the default
142      - SEAICEadvSalt = .true. is now the default
143      - SEAICEadvAge  = .true. is now the default
144      - SEAICE_clipVelocities  = .false. is now the default
145                                         (as per J. Zhang's recommendation)
146      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
147        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
148      - seaice_growth: replace computation of UG by a simple copy from wspeed
149    
150    checkpoint61k
151    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
152      seaice_lsr: fixed a few metric terms,
153                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
154                  add more debugging diagnostics
155      seaice_evp: removed superfluous many metric terms of FV discretization
156                  of stress divergence
157                  affects lab_sea, lab_sea.hb87
158      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
159                  of stress divergence for non-evp solver
160                  (this part is not tested anywhere)
161      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
162                  they were effectively only half slip
163                  affects lab_sea.hb87
164      updated all relevant verification experiments (except lab_sea//output_adm.txt
165        which was left over, but fails at level 7 & 6)
166    
167    checkpoint61j
168    o pkg/seaice: turn a few hard wired parameters into run time parameters
169    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
170      time in seconds as promised by the usints in seaice_monitor and exf_monitor
171    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
172      that are not cubed-sphere grids
173    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
174    o pkg/ctrl:
175      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
176    o non-hydrostatic (calc_gw.F):
177      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
178      update output of exp. global_ocean.cs32x15.viscA4
179    o remove backward compatibility for thetaMin,phiMin
180      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
181    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
182      interpolated wind field not only for curvilineargrid=.true., but also
183      for a rotated grid (rotateGrid=.true.)
184    o pkg/exf: add capability to bypass interpolation for runoff
185      by setting yet another CPP-flag
186    o eesupp/src, B-grid exchange:
187      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
188    o autodiff
189      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
190      allows to switch to single-prec common blocks;
191      corresponding switch occurs in tamc.h, integer isbyte
192      TAF store directivs "byte" and "kind" seem equivalent;
193      Most tamc.h have been updated correspondingly.
194    
195    checkpoint61i
196    o autodiff:
197      fix autodiff_sore/_restore indices for obcs
198      (spotted by I. Hoteit, M. Mazloff)
199    o pkg/autodiff, pkg/ctrl:
200      Add flag to reduce all tapelev I/O to single-prec.
201      In data.ctrl set
202        doSinglePrecTapelev = .TRUE.
203    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
204      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
205    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
206      real fresh water flux (not yet)
207    o pkg/mdsio & rw:
208     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
209     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
210    o pkg/flt:
211     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
212       init_fixed & ini_varia.
213     - clean-up & simplify linear interpolation S/R:
214       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
215     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
216     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
217     - add vert. coordinate & horiz. indices to output files.
218     - change vertical position in initial condition, from index to depth [m].
219     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
220       (easier to get to a curvilinear grid) ; delX,delY no longer used.
221    o pkg/ggl90: a few modifications:
222     - fix bottom boundary condition, and interpolation of KappaE
223       near top and bottom
224     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
225     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
226     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
227    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
228      (maintain temporary backward compatibility, until next checkpoint)
229    
230    checkpoint61h
231    o pkg/diagnostics with "periodic averaging diagnostics":
232      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
233    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
234    o pkg/obcs: fix loop ranges for balancing code
235    o pkg/flt:
236     - improve criteria for finding which tile owns a float.
237     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
238    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
239      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
240      with ocean biogeo)
241    o pkg/flt:
242     - do some cleaning and fix the restart ;
243     - add output.txt in flt_example/results to get this pkg tested.
244    o genmake2: add an EXTENDED_SRC option and flag.
245       for now, cannot be turned on on command line (only through genmake_local)
246    o pkg/mdsio: read/write vector:
247     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
248     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
249       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
250     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
251      (drop to 4 digits matching for grad). But this test does not look very
252      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
253    
254    checkpoint61g
255    o pkg/flt:
256      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
257       + make OPTIONS file more standard.
258      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
259      - fix _BYTESWAPIO CPP-Flag
260      - standard reading of file-parameter "data.flt"
261      - fix argument list of S/R FLT_RESTART
262      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
263    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
264    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
265      a still unfixed compiler/optimization bug
266    
267    checkpoint61f
268    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
269      update results of global_ocean.cs32x15.icedyn test.
270    o move getcon.F from model/src to pkg/fizhi.
271    o pkg/exf: add parameter for extrapolation of temp up to the surface
272       and option to prevent negative evap (in bulk_largeyeager04 only).
273    o Prather Advection scheme: fix tracer conservation for divergent flow
274      (e.g., when using NonLin Free-Surface).
275    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
276    o gmredi (Visbeck-variable-K):
277     - add more parameters to Visbeck-variable-K.
278     - use a 5 points average for dSigmaR in Visbeck-K calculation
279       (more "homogenous": same stencil and same weights as in dSigmaH)
280     - update output of ideal_2D_oce experiment.
281    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
282      (#undef REAL4_IS_SLOW)
283     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
284       coordinate variable
285     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
286       (surface forcing fields), removes some of the functionality
287     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
288     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
289       probably not all: copy _RS surface flux fields to RL field before
290       calling DIAGNOSTICS_FILL
291     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
292       real*4 (CALL EXCH_*_RS) versions.
293     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
294       (generate new output).
295    
296    checkpoint61e
297    o gmredi (Visbeck-variable-K):
298      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
299      - change computation of Visbeck-K where Slope > Smax :        
300        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
301        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
302    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
303      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
304    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
305    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
306      does not become too large (to avoid precision problems in implicit-diffusion
307      solver); update ideal_2D_oce output.
308    o pkg ggl90:
309      - in ggl90_cal.F: compute only one set of visc/diff, used to
310        step forward TKE/T/S/momentum
311      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
312        have Prandlt =1)
313    o gmredi (fm07):
314      - add lower limit on Transition layer thickness + lower limit on 1/lambda
315      - allow to set few more params from data.gmredi
316    o pkg ggl90:
317          - add missing sqrt(2) factor in computation of mixing length
318            scale in ggl90_calc.F
319            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
320    
321    checkpoint61d
322    o adjoint modifs
323      - adapt to new field rhoInSitu
324      - allow to revert from StoreDynVars2D, StoreDynVars3D
325        to individual fields
326        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
327    o store 3-D (in-situ) density in commom block (DYNVARS.h)
328     - save 1 rho computation.
329     - no longer modify T & S inland when using down_slope pkg.
330    o gad_som : allow to switch to SOM advection for T & S without corresponding
331      pickup files (using new S/R: MDS_CHECK4FILE).
332    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
333      (for useSingleCpuIO to work in multi-threaded)
334    o pkg/shelfice:
335     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
336       with SHELFICEtopoFile in data.shelfice
337     - move code for reading ice shelf topography and modifying hFacC into separate
338       subroutines of the shelfice package
339     - separate initialisation of "fixed" and "variable" variables
340     - kTopC is not (yet) replaced by kSurfC, although this is possible
341    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
342    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
343      and rename:
344      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
345      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
346    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
347    
348    checkpoint61c
349    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
350      to add mass source/sink of fluid in the interior (3-D generalisation
351      of oceanic real-fresh water flux).
352    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
353    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
354    o new pkg: down_slope
355      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
356      - presently, modify T & S inland (dwnslp_calc_rho.F).
357        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
358      - implementation for ocean in P-coords not tested.
359      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
360    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
361      (to facilitate conversion of oceanic pkg to p-coordinate).
362    o change FIND_RHO to FIND_RHO_2D :
363      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
364    o new pkg: cheapaml
365    
366    checkpoint61b
367    o exch2:
368      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
369      - no longer depend on the order sequence (N,S,E,W).
370      - 3rd exchange no longer needed (tested with 24 tiles).
371      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
372      - exch_UV_A-grid readily available (but not yet tested).
373      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
374      (both are no longer needed) in exch_uv: no effect in forward run; but
375       get truncation error differences with adjoint exch.
376    o exch2:
377     - change index-bounds storage (moved from target to local tile,
378       more intuitive this way) ; rename/remove some variables.
379     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
380    
381    checkpoint61a
382    o exch2/matlab-topology-generator:
383      fix bug in index bounds for N-S internal exchange (hard to tell if this
384      had any effect on the solution).
385    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
386      is exceeded
387    o testreport: modify syntax of awk, so that it works also with
388      awk, and not only with nawk and gawk
389    
390    checkpoint61
391    o autodiff
392      Change default for TAF usage by removing argument '-nonew_arg'
393      This changes TAF subroutine argument list (ordering of active var.)
394      Omission of this flag leads to incompatibility w.r.t. TAMC
395      To restore TAMC-compatibility, need following modifs:
396      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
397      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
398      Tested TAF version is 1.9.22
399      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
400    
401    checkpoint60
402    --->>> This is the last checkpoint for which generating the adjoint
403    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
404    --->>> by default.
405    --->>> Future checkpoints will ommit this flag by default.
406    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
407    o pkg/grdchk: Add gradient check to etan0 perturbations.
408    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
409    o pkg/autodiff: more flexibility in zeroadj.
410      model/src: modifying do_oceanic_phys.F accordingly.
411    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
412    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
413      special setup of gmredi for which the adjoint is stable
414      enough for parameter optimization.
415    o bridging the gap between eddy stress and GM.
416      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
417          along with a change in CPP option (now ALLOW_EDDYPSI).
418      -> when using GM w/ GM_AdvForm:
419          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
420          is applied either in the tracer Eq. or in momentum Eq.
421          depending on data.gmredi (intro. GM_InMomAsStress).
422      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
423      The key modifications are in model/src/taueddy_external_forcing.F
424      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
425    
426    checkpoint59r
427    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
428      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
429      fix option to read coriolis(@ cell-corner) from files with CS-grid.
430    o pkg/mnc: add some attributes to standard 1D-coordinate variables
431    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
432      mass points, when using mnc for output
433      - add runtime parameter (missing_value, missing_value_int) to override
434        default (which is the value of getcon('UNDEF'))
435    o pkg/mnc: prepare mnc for the actual use of missing values with the
436      diagnostics package: small fix in mnc_cw_readwrite.template and more
437      initialisation of never used fields
438      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
439      versions
440    o pkg/thsice/thsice_ini_vars.F added default initial values so that
441      thermodynamics sea ice solver does not blow up when some initial fields
442      are missing.
443    o move from external_forcing_surf.F to ini_forcing.F
444      the p-coord. hack consisting in using pLoad to set phi0surf ;
445      update output of tutorial_global_oce_in_p (affected @ truncation level).
446    o Freshen up a bit hs94.1x64x5, notably:
447      remove rotationPeriod and tRef=5*0. (adjoint only), and add
448      exactConserv=.TRUE.
449    o pkg/generic_advdiff:
450      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
451      applies to files where Temperature & Salinity 2nd Order moments are used.
452    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
453      this uses a dynamically allocated internal state data structure
454      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
455      and requires a fortran 90 compiler
456    
457    checkpoint59q
458    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
459       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
460    o Refresh tutorial_global_oce_biogeo, notably:
461      - change bathymetry (put back seamounts in ACC, use hFacs)
462      - change EOS (POLY3 --> JMD95Z)
463      - use Bryan-Lewis vertical diffusivity
464      - use multidimensional advection
465      - remove old virtual virtual in dic pkg, now done through ptracer pkg
466      - change a couple of parameters in dic pkg
467    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
468    o pkg/obcs: change default to OBCSfixTopo = .true.,
469      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
470      - replace "debugMode" with "debugLevel .GE. debLevB"
471    o implementation of TAF directives for gchem,cfc,dic
472    o remove "exp5" (replaced by tutorial_deep_convection).
473    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
474      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
475      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
476      --> changes results in exp4, seaice_obcs
477    o tutorial_deep_convection :
478      update the set-up and increase resolution and domain size ; start
479      from pseudo initial conditions = output at t=120mn in order to see
480      something happening when running testreport.
481    o pkg/seaice: add os7mp as an advection scheme
482                  add check for advection schemes
483                  add a flag for restoring T and S underneath sea ice
484    o pkg/my82: add netcdf-support and diagnostics
485    o thsice pkg:
486      - Now hsMax limits snow height by turning it into ice following
487        flooding scheme (and now conserving energy)
488      - Slight rewriting of the formula in thsice_calc_thick.F
489      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
490      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
491    
492    checkpoint59p
493    o gchem / dic / cfc :
494      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
495      - add new parameter files: "data.dic" & "data.cfc" ;
496      - various re-arrangement in initialisation & header file ;
497      - fix tutorial_global_oce_biogeo for multi-threaded test.
498    o pkg/dic: test for "pickup_dic" file when restarting ;
499      if no pickup-file, can restart with a re-initialised pH (same as it did
500      before) providing pickupStrictlyMatch is set to False.
501    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
502      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
503    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
504      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
505    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
506     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
507       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
508    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
509       scheme to use for vorticty-term ;
510     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
511       (with default selectVortScheme, return to original discretisation)
512     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
513    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
514    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
515      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
516      also fix diagnostics VISCAHW & VISCA4W.
517    
518    checkpoint59o
519    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
520    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
521      move a few statemens out the main loop into separate loops
522    o pkg/shelfice:
523      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
524        (kg/m^2/s), does not break tests, because in verification/isomip,
525        rhoConstFresh=rhoConst (by accident)
526      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
527      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
528        new file model/src/seawater.F, so that they are available for all pkgs.
529      - convert potential temperature into in-situ temperature. This changes the
530        isomip tests => update tests
531    o add a flag writePickupAtEnd (default=true) to be able to suppress
532      writing a pickup at the last timestep
533    o tools/mpack-1.6 :
534      - disable automake (not working) and autoconf (not needed).
535      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
536        also cleaner with much less compilation warnings.
537    o pkg/profiles:
538      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
539      (for "less than 32 characters name" compiler requirement)
540    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
541      conditions that have a different sampling frequency than S/T/U/V obcs
542    o pkg/diagnostics (stats-diags):
543      - fix global Min/Max in case 1 processor get only empty tiles
544    o genmake2: replace (4 times)
545         make genmake_tc_1.o >> genmake_warnings 2>&1
546      with
547         COMM="$CC $CFLAGS -c genmake_tc_1.c"
548         echo $COMM >> genmake_warnings
549         $COMM >> genmake_warnings 2>&1
550      to make genmake2 always see the value of CC as specified in the optfile.
551    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
552      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
553      - modify verification advect_cs test to test SOM-advection on CS-grid.
554    o pkg/ctrl:
555      - Rewrite of ctrl_map_ini_ecco.F,
556        introducing a generic routine (ctrl_map_ini_gen.F).
557      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
558    
559    checkpoint59n
560    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
561      number in dedicate array "hdiag":
562      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
563        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
564      - many small changes (integer format) for large number of diagnostics
565      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
566        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
567    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
568      usingSphericalGrid, this allows to define the rotated grid coordinates
569      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
570      geographical coordinates according to the inverse of the rotation defined
571      by the Euler angles, so that Coriolis parameter and online-interpolation by
572      exf works with the geographical coordinates on XC/YC/XG/YG.
573      Naturally, this feature does not work with all packages, so some
574      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
575      profiles), because there the coordinates are assumed to be regular
576      spherical grid coordinates.
577    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
578      - introduce isopycnal diffusion coefficient control.
579    o tools/adjoint_options:
580      - additional control vector components.
581    o pkg/mnc: have mnc create marginally meaning full coordinate variables
582      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
583    o pkg/mypackage:
584      - add example of read/write pickup for state-var ;
585      - add entry points to the main code for state-vars diags & write-pickup.
586    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
587      transitions for useExfYearlyFields
588      - add new subroutine that determines the file to read from for
589        use*YearlyFields = .TRUE. and .FALSE.
590      - add a verification experiment to global_with_exf that tests
591        useExfYearlyFields with USE_EXF_INTERPOLATION defined
592    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
593      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
594      subroutines (which could be generated from a template, because they are
595      almost identical), for now they are included in obcs_prescribe_read.F for
596      simplicity
597    o pkg/exf:
598      - add a little more diagnostic to exf_interp_read (in analogy to
599        mds_read_field, can be turned off with debugLevel < debugLevA=1)
600      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
601        ugly but fast by unrolling short inner loops, inserting a unroll=8
602        directive in routine lagran, and splitting a loop and making do while the
603        outermost loop (the latter requires the intoduction of index arrays)
604    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
605    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
606      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
607    o verification/seaice_obcs: updated for restart test and latest options
608    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
609      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
610      for now this is only available for the C-grid code and also within
611      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
612    
613    checkpoint59m
614    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
615      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
616    o gad_som : fix flux output (& diagnostics) to have same units as other  
617      advection scheme fluxes (was previously multiplied by deltaT).  
618    o added verification/seaice_obcs both to test seaice open boundaries
619      and to provide an example matlab scrpt for generating them
620    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
621    o pkg/salt_plume: clean up salt_plume_frac.F to
622      remove redundancy in PlumeMethod 1 and 4
623    o pkg/kpp: added saltplume diagnostics
624    o pkg/obcs and pkg/seaice:
625      - do not set uice and vice to zero when OB*icefile are unspecified
626      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
627      - moved seaice tracer obcs after call to seaice_growth
628    o pkg/salt_plume: added various options for salt plume depth
629      criterion and for vertical distribution of the salt
630    
631    checkpoint59l
632    o pkg/ptracers: new version of ptracers pickup:
633      read meta file and write only fields which are needed to restart.
634      ( same logic as main pickup file ; also using pickupStrictlyMatch )
635    o pkg/seaice:
636      - add timescale for melting due to warm mixed layer as a means of
637        setting SEAICE_availHeatFrac more conveniently
638      - add a CPP-flag/runtime parameter check for flooding algorithm
639      - reformulated availHeat in seaice_growth.F to be independent of AREA
640    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
641      unit changes
642    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
643    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
644      SX vector computer.
645    o pkg/seaice:
646      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
647        seaice forcing fields can now be read only through pkg/exf
648      - removed some unused halos
649    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
650    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
651      or U/VICE from U/VWIND before computing U/VSTRESS
652    
653    checkpoint59k
654    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
655      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
656    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
657      all experiments pass when compile with un-initialised var. checking option.
658    o added pkg/salt_plume
659    o script to test restart (for now, in MITgcm_contrib/jmc_script)
660    o pkg/seaice: new read/write pickup version.
661      read meta file and write only fields which are needed to restart.
662      ( same logic as main pickup file ; also using pickupStrictlyMatch )
663    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
664    o lab_sea.hb87: modify the domain & update output.hb87.txt :
665      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
666      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
667      process. Fixed here by closing the domain at the Northern boundary.
668    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
669    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
670      a set of consecutive levels in/from a 3-D array.
671    o pkg/ptracers:
672      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
673      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
674    
675    checkpoint59j
676    o in pkgs: dic, obcs, offline, rbcs:
677      standard way to compute coeff. for time interpolation between 2 time reccords
678      which retains full precision (& make results less dependent on compiler).
679      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
680    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
681      packages instead of reading ice cover and wind speed separately
682    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
683     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
684      to allow to compile customized code before the update)
685    o cleaning-up:
686      - fix CPP instruction syntax in pkg/obcs
687      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
688        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
689      - fix some threads issue in IO parts.
690    o pkg/dic:
691      - add tons of "_d 0" (--> much better testreports !)
692       and then update outputs of tutorial_global_oce_biogeo
693    o pkg/mom_fluxform:
694      add a special version of momentum advection intended to conserve momentum
695      next to a bathymetry step or a coastline edge. (default = off = #undef)
696    o new read/write pickup version:
697      - for now, only implemented for main (mdsio) pickup file.
698      - write out only what is needed to restart; merge pickup_nh , pickup_ph
699        and main pickup together.
700      - read meta file; read only what is needed to restart; stop if a field
701        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
702        if it make sense (even if the restart is not perfect).
703      - if no meta file, assume that pickup to read corresponds exactly to
704        a pickup that would currently be written.
705      - read pickup written in the old format (until checkpoint59i) if it
706        recognizes an old meta file (no field-list).
707      - add a meta file in exp. which starts from a pickup: 2 cases:
708        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
709         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
710        b) a meta file describing the content of the associated pickup file
711         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
712    o pkg/mdsio & pkg/rw:
713      - new routine to read a meta file ; new set of routine to read
714        Multiple-fields file (with meta file).
715    o added open boundary conditions capability for seaice
716        HSNOW, HSALT, UICE, and VICE
717    
718    checkpoint59i
719    o adjoint:
720      * fix multiDimAdvection adjoint
721        (partial recomputation problem by TAF for fVerT(:,:,kDown)
722        and comlev1 size definition (maxpass vs. max. number of tracers)
723      * verification/global_ocean.90x45x15 adjoint now tests
724        NLFS and multiDimAdvection using DST3 (=30)
725      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
726    o pkg/kpp: add "_d 0" to real constant (if missing);
727      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
728      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
729    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
730      for internal parameters related to restart process (formerly from PARAMS.h)
731      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
732    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
733      as argument. (only atm2d & obcs write_pickup have not yet been updated)
734    o pkg/monitor:
735      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
736      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
737      - account for deep Atmosphere factor and density factor (anelastic)
738    o added open boundary conditions capability for seaice HEFF and AREA
739    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
740      thermodynamics
741      - requires a little reorganization, which affects the testreport results
742        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
743        so that now the conservative form is tested
744      - add a few comments
745    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
746    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
747    o add new diagnostics to seaice: advective, diffusive fluxes (only for
748      multidim-advection, for scheme 2 they are not filled) and transports,
749      thermodynamic growth rates
750    o change units of EmPmR (inside the code, + within coupling interface)
751      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
752      Affects results @ truncation level (cg2d match) and update output of
753       experiments: lab_sea(6), global_ocean.90x40x15(10),
754      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
755      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
756      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
757      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
758    
759    checkpoint59h
760    o pkg/exf:
761      - improve vectorization by moving if-statement out of loops in
762        exf_mapfields, exf_radiation
763      - exf_bulkformulae.F: introduce 2D fields and vectorize code
764    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
765    o testreport:
766      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
767        monitor & update offline_exf_seaice exp. output.
768      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
769    o pkg/seaice:
770      - bug fix in the evp solver: boundary conditions were affected be
771        masking of zMax/zMin (changes results)
772      - minor bug fix in boundary conditions in seaice_calc_strainrates
773        (changes results for no_slip)
774      - seaice_lsr.F: make interpolation of eta dependent on boundaries
775      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
776      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
777        stress formulation and no-slip boundary conditions
778    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
779      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
780    o pkg/seaice: a first HSALT time stepping equation has been checked in
781    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
782      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
783      without requiring DO-IF statements
784    o pkg/thsice:
785      use continuous power-law function for partition of energy between lateral
786      melting/freezing and thinning/thickening ; old code using step function
787      still available with #undef THSICE_FRACEN_POWERLAW
788      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
789    o testreport: change AD testing : check against results/output_adm.txt
790      using same scripts as for forward test.
791    
792    checkpoint59g
793    o adjoint testing: in preparation for changing testreport:
794      - output format: cost and grad written on separated lines
795      - ad output results in directory "results" (instead of "results_ad")
796    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
797    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
798    o pkg/ecco: allow user defined cost function contributions
799    o testreport:
800      Allow to choose (per experiment) the list of tested output variables
801       and the main variable (used to issue a pass/FAIL ) ;
802      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
803      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
804      Also modify printing of summary:
805       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
806       b) echo the list of tested variables in the individual summary.txt of
807          each experiment.
808    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
809      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
810      (but still depend on the tile decompostion of the domain).
811    o pkg/seaice: change a discretization detail to make the B-grid code
812      "more symmetric". This change is likely to remove all "ridges/leads" that
813      where quasi-aligned with the grid in B-grid solutions. It may also be
814      the solution to the stress coupling issues with the B-grid.
815    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
816      remove .cvsignore from input dir. (since testreport no longer run here).
817    o pkg/thsice:
818     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
819     - fix reshaping of sea-ice just after advection:
820       melt all the ice only if ice-volume is too small.
821     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
822       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
823     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
824    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
825      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
826    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
827      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
828      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
829      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
830      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
831      -> update output.txt
832    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
833     this affects truncation error: -> update output.txt of exp:
834      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
835      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
836    
837    checkpoint59f
838    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
839    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
840      a bounded range (in forward mode)
841    o pkg/ecco, ctrl, autodiff and mom_common:
842     internal parameter controls, completements of implementations
843    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
844    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
845      (not seem any difference in testing results).
846    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
847       at face corners.
848    o pkg/generic_advdiff:
849     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
850      loop range indices for computing vertical advection tendency
851      and do the calculation in the interior only (no overlap) ;
852      for now, only implemented for SOM advection (to save CPU time).
853     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
854    o exch2 adjoint
855      First set of changes:
856      - add exch2 hand-written adjoint templates
857      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
858        This will require cleanup in pkg/autodiff/*.F
859        (changed routines currently kept separate in verif. code/)
860      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
861        that used to hide exch2 or cubed-sphere specific code
862        (commented via 'cph-exch2')
863    o pkg/seaice
864      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
865    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
866       output of global_ocean.cs32x15.thsice .
867    
868    checkpoint59e
869    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
870      for B-grid vector (not yet tested) and C-grid vector (<- only used
871      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
872    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
873      (#ifdef ALLOW_SALT_PLUME)
874    o gather_2d/scatter_2d: removed halo regions
875    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
876      scheme and the corresponding test case (under front_relax dir). For now,
877      only available with Skew-flux form and not yet tested in realistic set-up.
878      adjoint: store directives updated, but gradient checks deteriorated,
879      so maybe GM/Redi adjoint is now broken.
880    o seaice adjoint
881      * add AREA, HEFF, HSNOW as control variable
882        (should not change lab_sea results)
883      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
884    o pkg/seaice:
885      * added computation of saltFlux in seaice_growth;
886        For time being, sea ice salinity is assumed constant
887        contribution of snow flooding to freshening of sea ice is neglected.
888        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
889        defaults to 0.0 in order to maintain backward compatibility.
890        Typical values for SEAICE_salinity are 4 to 10 g/kg.
891      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
892      * added SEAICE_availHeatFrac, which specifies fraction of surface level
893        heat content used to melt or grow ice
894      * commented out cap of HICE: it helps keep ice thinner
895      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
896      * applied OBCS T/S mask to HEFFM sea ice mask
897    
898    checkpoint59d
899    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
900     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
901     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
902    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
903     and change default value of parameter "GM_Small_Number";
904     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
905       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
906       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
907    o pkg/ecco: cost function when applying pkg/smooth to controls
908    o pkg/ctrl: add forcingPrecond run time parameter
909    o pkg/seaice:
910     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
911     - fix bug in metric terms of u-equation in LSR solver (implicit part),
912       changes verification/lab_sea
913     - rearrange implicit part of u-equation in LSR solver to make it easier to
914       read, understand, and debug. This causes changes at the truncation level.
915     - fix (serious) bug in the boundary conditions (sign error in the implicit
916       part) of the LSR solver. Changes all LSR results.
917     - fixed problem with HSNOW initialization to avoid thick snow when AREA
918       is initilized with small values - does not change lab_sea results.
919     - added HsnowFile initialization capability
920    o pkg/smooth: addition to model/src and pkg/ctrl so allow
921     initialization of pkg/smooth and application to control vector
922    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
923    o dependencies: pkg/profiles requires pkg/cal
924    o pkg/profiles:
925     - added option ALLOW_PROFILES_GENERICGRID
926         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
927         that interpolation information (grid points and coefficients) is provided
928         within the netcdf input files.
929         -> sample matlab scripts can be found in MITgcm_contrib/gael
930         that allow you to prepare netcdf input files.
931     - also modified: cleaner include statements, cleaner error print statements,
932       cleaner stops when error, and more tests of the netcdf input files consistency.
933    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
934    o pkg/seaice:
935     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
936       requires a new routine: seaice_diagnostics_fill.F
937     - make sure that seaice does not move if not forced (pressure replacement
938       method, Hibler and Ip, 1995), changes results
939     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
940     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
941       It is turned off by default (=-1.), because it changes the results.
942     - make it possible to read AREA from a file, too.
943    
944    checkpoint59c
945    o add S/R and diagnostics for oceanic mixed-layer depth
946    o move GMRedi call after all vertical mixing schemes (including KPP)
947    o pkg/thsice:
948     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
949      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
950    o pkg/obcs:
951     - bug fix for balance code
952    o pkg/seaice:
953      - allow values of SEAICE_elasticParm > 1
954      - add new parameter SEAICE_evpTauRelax as an alternative
955        to SEAICE_elasticParm
956      - make lsr boundary conditions free slip (by default), changes result
957      - add code for no slip boundary conditions for lsr
958      - set minimum of zeta to zero (and not 4e8) (changes results)
959      - add a cap on AREA after advecting AREA if seaice_growth is not called
960    o change calculation of Visbeck K:
961      - no longer depend on tapering scheme; instead, compute slope (limited
962        by GM_maxSlope). this is equivalent to what was comuted before with
963        clipping or linear tappering.
964      - fix vertical averaging (wrong by 1/2 level)
965      - leave the old version (but will not be maintained) within
966        #ifdef OLD_VISBECK_CALC / #endif
967      - update output of exp. ideal_2D_oce
968    o change error catch in calc_r_star to improve vectorization
969    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
970      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
971    o adjoint:
972      Re-organized adjoint checkpointing according to Matt Mazloff
973      (but with modifs/completions/cleanups)
974      Storing is now bundled into large arrays to optimized I/O
975      (and second step in cleanup of the_main_loop)
976    
977    checkpoint59b
978    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
979      - export/import (between ocean & coupler) fields needed for ocean DIC.
980    o pkg/seaice:
981      - get rid of three more exchanges seaice_calc_viscosities (required
982        different loop boundaries in seaice_lsr and seaice_ocean_stress)
983      - bug fix in seaice_ocean_stress (update of lab_sea required)
984      - reduce loop boundaries to necessary minimum also in seaice_evp
985      - go back to the old way of computing deltaC/Z as the adjoint likes that
986        better
987    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
988      passive tracer to an Age Tracer) + update output.txt
989    o pkg/exf:
990      - implement A-grid / C-grid selection for wind-stress input files.
991      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
992      for now, in exf_bulk_largeyeager04.F only :
993      - change implementation for case where windspeed + 2. components wind-stress
994        are read-in. AND use rhoConstFresh to convert evap.
995    o pkg/seaice:
996      - use correct EXCH_UV for wind-forcing (on A-grid).
997      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
998        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
999    o pkg/exf:
1000      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1001      EXF_INTERPOLATION:
1002      - merge global_with_exf/code version of exf_interp_read.F
1003        to the main code ;
1004      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1005        reading the file ; Important: This options needs to be defined to recover
1006        previous code.
1007        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1008      - no longer loose real*8 precision along the way when using exf_iprec=64.
1009    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1010      - change discretisation of evp-solver in order to avoid another exchange
1011        (changes lab_sea) and clean up a little
1012      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1013        help the adjoint (this also changes the results slightly)
1014      - add a few "_d 0" where they had been missing in seaice_evp.F
1015      - cleaning up: remove unused seaice_calc_rhs.F
1016    o pkg/exf: some cleaning-up:
1017      - change various "constants" into runtime parameters
1018      - cleaned-up Large&Yeager04 routine which should eventually
1019        replace exf_bulkformulae.F (changed names of S/R and CPP)
1020        and merged various ALLOW_ATM_WIND options
1021     only used with thsice pkg (in thsice_get_exf.F):
1022      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1023        which are used when useStabilityFct_overIce=TRUE (= the default)
1024      - change default values of ice & snow emissivity and scale downward LW
1025        by ice & snow emissivity.
1026    o pkg/thsice:
1027     fix few little problems, in thsice_calc_thickn.F:
1028      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1029      - melt only laterally if hIce < hThinIce (as the comments say)
1030      and in thsice_extend.F:
1031      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1032      - start to form ice as soon as the minimum ice-volume is reachable.
1033     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1034      and cpl_aim+ocn
1035    o pkg/kpp
1036     - move computation of surface related input fields to KPP into a new
1037       subroutine kpp_forcing_surf.F
1038     - remove wrong (within bi,bj loops) EXCH calls.
1039     - little cleaning (add argument myThid in last position, cvs header ...)
1040     - for now, fix conservation problem by exchanging KPPviscAz (may not
1041       be the best fix)
1042    o pkg/seaice
1043     - check for inconsistent evp parameter/cpp-flag combination
1044     - remove leftover errIO flat for obsolete name list error handling
1045    o OpenAD
1046     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1047    
1048    checkpoint59a
1049    o pkg/seaice: some parameter clarifications and a little bit of clean up
1050    o pkg/thsice: rename run-time parameters:
1051       himin       -> hIceMin
1052       himin0      -> hThinIce
1053       hihig       -> hThickIce
1054       i0          -> i0swFrac
1055       transCoef   -> bMeltCoef
1056       frac_energy -> fracMelting
1057      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1058       with default values (for now) that do not change the results.
1059      remove old version of thsice vars advection in pkg/seaice.
1060    o in FFIELDS.h:
1061      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1062      - make pLoad & sIceLoad always available (but still only used if
1063         ATMOSPHERIC_LOADING is #define).
1064    o pkg/kpp: replaced _KPP_RL with _RL
1065    o bug fixes for vertical diffusivity computations when both KPP and
1066        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1067        are no longer updating the vertical diffusivity array
1068        (passed as argument) but are (re-) setting those arrays.
1069    o pkg/seaice: fix bug in evp solver, while doing that
1070      - change (improve?) discretization of stress computations for both
1071        cgrid-lsr and evp solver
1072      - add a new routine to compute strain rates
1073      - the above changes lab_sea results
1074      - add no slip conditions for evp solver (off by default), lsr-version
1075        may follow
1076      - fix exchange for shear at Z-points (does not change lab_sea)
1077      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1078        (to force the user to pick a time step since there is not "safe" way
1079        of choosing it)
1080      - add principal stress diagnostics
1081      - rearrange fields for evp a little to avoid having to call a: too many
1082        exchanges and b: exchanges for stress trensor components which we do
1083        not have.
1084      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1085        of evp, complete rewrite for lsr case (latter is does not yet work
1086        in all cases)
1087    o pkg/kpp: add code to have mixing in shelf ice caverns
1088      - add myThid to all kpp routines (long overdue)
1089    
1090    checkpoint59
1091    o pkg/exf:
1092      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1093        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1094      - move exf header files from lower_case.h to UPPER_CASE.h ;
1095        add missing cvs Header & Name
1096      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1097      - add namelist param. selectStressGridPosition, exf_monFreq
1098      - retire many _CLIM routines, and remove data.exf_clim
1099        + params moved to data.exf
1100        + climsst, climsss now handled by exf_set_gen, i.e.
1101          climss?period=0 refers to constant field,
1102          climss?period=-12 to monthly forcing
1103      - split up namelists in data.exf
1104    o pkg/seaice:
1105      - remove seaice_exch and seaice_exch_uv
1106      - remove superfluous exchange of theta
1107      - add myThid to seaice_budget_ocean/ice
1108      - add new interface for atmospheric wind forcing (C-grid only)
1109        + new routine
1110        + two new field (taux, tauy for stress over ice)
1111        + removed one global field (DAIRN) for C-grid case only
1112    o pkg/thsise
1113      - 2nd set of modifs for thsice adjoint in conjunction with exf
1114    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1115    
1116    checkpoint58y_post
1117    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1118      vertical diffusivity, similar to that in MOM4; turned on using
1119      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1120      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1121    o Added capability for 3D specification of background vertical diffusion
1122      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1123      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1124      "data" file that contains the 3D vertical diffusivity coefficients.
1125    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1126      - add code within pkg thsice to advect & diffuse sea-ice fields
1127      similar to (and will replace) what has been added in  seaice_advdiff.F,
1128      but: - conserving Mass, Heat & Salt.
1129           - better when using non-linear advection scheme (not yet fully tested)
1130           - can also be used in atmospheric set-up (for now, only the diffusion).
1131    
1132    checkpoint58x_post
1133    o IO option for global-file compact format:
1134      - add options when generating topology (utils/exch2/matlab-topology-generator)
1135      - add I/O capability (pkg/mdsio).
1136      - adapt utils/matlab/rdmds.m to read this format.
1137      for now long-line format not yet supported by pkg/mdsio (& exch2).
1138    o shelfice: add a few diagnostics
1139    
1140    checkpoint58w_post
1141    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1142      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1143      (and replace horiVertRatio in NH code).
1144      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1145                         and tutorial_plume_on_slope (sensitive to truncation)
1146    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1147      directly to drive seaice model (C-grid only)
1148    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1149     - reintroduce computation of wind from stress,
1150     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1151       mass points to avoid tau = 0
1152     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1153    o rdmnc.m: make it work with "global" files created with gluemnc
1154    o rdmnc.m : some improvements in dealing with singleton dimension
1155      (tested on all testreport mnc output files).
1156    o genmake2: disable pkg/profiles if netcdf test fails.
1157    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1158    o move call to cal_readparms up to make calendar parameters/variable available
1159      to all packages
1160    
1161    checkpoint58v_post
1162    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1163      useDynP_inEos_Zc tested.
1164    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1165    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1166      and portions thereof.  See read_cs.txt for description and examples.
1167    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1168      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1169      following the great-circle arc between those 2 points.
1170    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1171      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1172    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1173     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1174     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1175     - still needs work (not working with some options ; efficiency to improve)
1176       and serious testing.
1177     - use this scheme for temperature & salinity in 2 advection test exp.:
1178       advect_xy & advect_xz, respectively.
1179    
1180    checkpoint58u_post
1181    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1182    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1183    o testreport: add option "-skipdir" to skip some test.
1184    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1185      momentum calculation.
1186    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1187    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1188      remove checkpoint.F and the_correction_step.F (no longer used);
1189      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1190    o add option (linFSConserveTr) to correct for tracer source/sink due to
1191      Linear Free surface
1192    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1193    o pkg/thsice: fix reading mnc-pickups
1194    
1195    checkpoint58t_post
1196    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1197    o pkg/mdsio:
1198     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1199       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1200       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1201     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1202     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1203       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1204     - new S/R (to replace MDSWRITEMETA), which allows to write more
1205       informations (variable names, time ...) to meta files.
1206     - modify rdmds.m to give back the meta file content.
1207    o pkg/diagnostics: change vertical interpolation to be safer, and more
1208       flexible (define p-levels to interpolate to in data.diagnostics);
1209      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1210       diagnostic pointer.
1211    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1212    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1213    o fix multi-category seaice:
1214     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1215       SEAICE_MULTICATEGORY
1216     - fix short wave heat flux
1217    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1218       and allow to use EVP solver. Change forward lab_sea: test both EVP
1219       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1220    o Initial check-in of lab_sea adjoint
1221      (very similar to natl_box_adjoint/code_seaice)
1222      * used C-grid and EVP solver
1223      * used KPP, GM/Redi
1224      * uses inAdExact=.TRUE.
1225      * gradient checks fail for both ADM and TLM
1226        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1227        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1228        issue is related to forward mismatch between g77 an ifort
1229    o pkg/seaice: overhaul of thermodynamics
1230     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1231     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1232     - move a few global fields out of SEAICE.h into seaice_growth.F and
1233       make them 2D (FICE/QNETO/ ...)
1234     - remove FO (it is the same as QNETO)
1235     - introduce a few local fields to avoid modifying external fields such
1236       as atemp, etc.
1237    
1238    checkpoint58s_post
1239    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1240      changed exf_set_gen.F so that
1241        genperiod=0 means input file is one time-constant field and
1242        genperiod=-12 means input file contains 12 monthly means
1243    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1244      this affects truncation error ; generate new output file for exp. which
1245      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1246        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1247        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1248        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1249        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1250        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1251    o start implementation of deep-atmosphere and anelastic formulation
1252    o verification: remove 2nd copy of input files and use script "prepare_run"
1253      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1254    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1255    o profiles: fix for multithreaded case
1256    
1257    o diagnostics: rename few diags:
1258      s/'PRESSURE'/'RCENTER '/g
1259      s/'TICE    '/'oceFreez'/g
1260      s/'TAUX    '/'oceTAUX '/g
1261      s/'TAUY    '/'oceTAUY '/g
1262      s/'SWFLUX  '/'oceQsw  '/g
1263      s/DIFx/DFxE/g
1264      s/DIFy/DFyE/g
1265      and add few ocean-forcing diagnostics:
1266      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1267    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1268      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1269      as actual snow thickness.  It now refers everywhere to effective snow
1270      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1271    
1272    checkpoint58r_post
1273    o modifications to pkg/seaice/growth.F, which change results of
1274      lab_sea experiment: fixes pertain to melting snow over open water, to
1275      masking EVAP under sea ice, and to using the correct AREA variable for
1276      computations of EVAP, PRECIP, HSNOW, and GHEFF
1277    o add ability to read bathy, salt, and theta using MNC (off by def)
1278    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1279      both are turned off by default and do no change any results
1280    o seaice advection with pkg/thsice: a step toward the use of non-linear
1281      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1282    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1283      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1284      in natl_box (affects results @ truncation level: update output.txt)
1285    o multi-threading and IO:
1286      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1287      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1288        (needed to work with SingleCpuIO): tested in all verif. exp.
1289    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1290      affects the results (but none of the verification test uses this scheme).
1291    o Adding some pkg/diagnostics capability to pkg/seaice
1292      (will certainly be subject to changes)
1293    o ctrl: adding new control variables:
1294      lwflux, lwdown, evap, snowprecip, apressure, runoff
1295    
1296    checkpoint58q_post
1297    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1298      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1299      high_res_cube configuration by 4% on Columbia.
1300    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1301      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1302      dynamical allocation (seems to work in multi-threaded).
1303    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1304      single CPU io) so that TAF does not have to see EESUPPORT.h
1305    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1306    
1307    checkpoint58p_post
1308    o obcs: stop if obcs is used with useCDscheme = .true.
1309    o shelfice:
1310     - fix a sign error so that no slip at shelfice interface works
1311     - remove stop for combination non-hydrostatic code and shelfice. That does
1312       not mean, that the results are correct, but at least they are numerically
1313       stable
1314    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1315    o added adjoint exch routined for all exch*3d* routines
1316      and updated flow directives
1317    
1318    checkpoint58o_post
1319    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1320      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1321    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1322      and clean-up reading/writing of pickup files.
1323    o fix local version of read/write pickup (NH part) in rotating_tank/code
1324    o simplify EXCH interface:
1325     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1326     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1327    o added the regrid package
1328    o shelfice:
1329     - add a simple boundary layer scheme to reduce noise
1330     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1331    
1332    checkpoint58n_post
1333    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1334       local variable (not in common block).
1335    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1336      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1337      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1338        to work with SingleCpuIO.
1339    o add "_d 0" to real constant of pkg/cfc subroutines ;
1340       update exp. cfc_exemple & tutorial_cfc_offline output files.
1341    o multi-threading and IO:
1342      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1343        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1344      - barrier before and after reading.
1345      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1346      - avoid using MDS_WRITELOCAL for LAND pkg output.
1347      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1348        common-block variables ; Allows multi-threading with master-thread IO.
1349    o change default MAX_NO_THREADS from 32 to 4 ;
1350      and stop cleanly when MAX_NO_THREADS is too small.
1351    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1352    
1353    checkpoint58m_post
1354    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1355       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1356    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1357       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1358       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1359    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1360        add MITgcm_tutorials (= code + all the tutorials)
1361    o ecco, option to compute cost for total ssh (mean+anom)
1362    o consistent with addition of ptracer and ssh in pkg/profiles
1363    o profiles: adding ptracer and ssh
1364    o testreport: change multi-test output-file name
1365      (from output.txt.{name} to output.{name}.txt)
1366    o profiles: now ok for mutli-tiles case
1367    o seaice: add 4 parameters for different advection schemes for area,
1368      (effective) seaice thickness, enthalphy, and snow height. Their default
1369      is the standard parameter SEAICEadvScheme
1370    o calc_gw:
1371     - add cosFacU in zonal viscous flux (harmonic.visc.).
1372     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1373       of tutorial_plume_on_slope.
1374    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1375    o calc_gw: true flux-form, account for horizontal grid spacing.
1376      update rotating_tank results, but not plume_on_slope (affected at
1377      truncation level, 11 digits).
1378    
1379    checkpoint58l_post
1380    o calc_gw:
1381     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1382     - remove side-drag for now (need to fix it); update plume_on_slope results.
1383     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1384    o commit code to make SST/SSS weights spatially variable
1385      (based on either variable in-situ or variable initial T/S weights)
1386    o pkg/ecco:
1387      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1388        now based on horizontally varying weights wthetaLev, wsaltLev
1389      * cost_averagesflags now returns year indices in addition to day, month
1390      * sflux balance is performed on annual basis
1391        (sflxumm, sfluxmm2, bal_sfluxmm)
1392      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1393        including separate counting and multipliers
1394    o pkg/rbcs
1395      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1396    
1397    checkpoint58k_post
1398    o testreport:
1399     - always build in dir. "build" (if not there, mkdir build instead of building
1400       & running in input)
1401     - run in dir run (if it exists), in build otherwise.
1402     - call prepare_run (if input/prepare_run exists)
1403     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1404    o pkg/exf modifications to interpolation and rotation routines for more
1405       reasonable treatment of North Pole singularity: for tracers North Pole
1406       value is set to northernmost zonal-mean value, for zonal velocity it is
1407       set to zero, and for meridional velocity it is set to northernmost value.
1408    o pkg/exf/exf_check_range.F
1409     - add tile index to diagnostics and move stop statement to the very
1410       end of the routine.
1411    o pkg/diagnostics: (diagnostics_main_init.F)
1412      define title of isomorphic variables according to the current config.
1413    o pkg/thsice with pkg/seaice dynamics:
1414    - fix domain of computation (interior only, required for exf) and do exchanges
1415    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1416    o towards a standard way of dealing with multi-threading in MONITOR
1417      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1418    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1419       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1420    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1421    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1422    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1423       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1424    o tracer advection:
1425     - clean-up and simplify calc_common_factors.F
1426     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1427       advection subroutine (but still not used within DST advection S/R)
1428    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1429    
1430    checkpoint58j_post
1431    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1432      from file (collects calls previously in FORWARD_STEP)
1433    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1434    o adjoint store dir. adjusted accordingly
1435    o genmake2
1436      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1437    
1438    checkpoint58i_post
1439    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1440      on wind stress (SEAICEstressFactor defaults to 1.)
1441    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1442      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1443    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1444      on CS-grid: no longer loosing mass.
1445    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1446    o pkg/ggl90: fix sloppy output and fix a bug
1447    o pkg/seaice: added SEAICEuseEVPpickup parameter
1448      - Set to false in order to start EVP solver with
1449        non-EVP pickup files when using SEAICEuseEVP
1450      - fix sign error in diffusion in seaice_calc_rhs
1451    
1452    checkpoint58h_post
1453    * Modifications for bottom topography control
1454      o replace hFacC by _hFacC at various places
1455      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1456      o add non-self-adjoint cg2d_nsa
1457      o update autodiff support routines
1458      o re-initialise hfac after ctrl_depth_ini
1459      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1460    * Adding verification for 5x5 box (4-layer) bottom topography control
1461    
1462    checkpoint58g_post
1463    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1464       used for mean seasonal cycle, mean diurnal cycle); add an example
1465       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1466    o pkg/ggl90:
1467      - add parameter (minimum surface kinetic energy)
1468      - fix bug (avoiding division by zero)
1469    o couple pkg/thsice to pkg/seaice:
1470      - modify advection in seaice to accomodate new scalar fields to be advected
1471      - only muliDimAdection scheme work with seaice/thsice
1472      - mapping of thsice-variables to seaice-variables, back and forth
1473      - does not break the verification experiments, but does not give the
1474        desired results either
1475    o pkg/seaice
1476      - make (default) second order advection a bit less confusing?
1477    
1478    checkpoint58f_post
1479    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1480      to pkg/seaice):
1481      - new routines thsice_map_exf and thsice_get_exf provide the interface
1482      - add an additional formal parameter to thsice_solve4temp
1483    o pkg/exf:
1484      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1485      - correct Stefan-Boltzmann constant
1486      - new parameter for longwave surface emittance
1487      - separate some stuff from exf_bulkformulae into new routines  
1488        exf_radiation, exf_wind
1489      - add new parameters and constants: longwave emissivity for ocean, ice
1490        and snow, evaporation parameters over ice
1491      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1492        either wind from stress or stress from wind
1493    o pkg/thSIce:
1494    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1495    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1496       and THSICE_CALC_THICKN
1497    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1498    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1499      to make debugging easier.
1500    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1501    o pkg/bulk_force:
1502      - clean-up comments and parameters ;
1503      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1504    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1505      generate new output for test-experiment: aim.5l_cs.thSI
1506    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1507      testreport accordingly
1508    
1509    checkpoint58e_post
1510    o SEAICE_CGRID adjoint done
1511    o R_STAR adjoint implemented.
1512      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1513      * need to sort out init. of h0facc, etc.
1514    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1515      to be able to use it in pure forward.
1516    
1517    checkpoint58d_post
1518    o upgrade simple test-experiment to tutorial example:
1519     step.1: duplicate the experiment and (step.2) will remove the old copy.
1520      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1521      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1522      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1523      tutorial_global_oce_biogeo    <- copy of dic_example
1524      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1525      tutorial_plume_on_slope       <- copy of plume_on_slope
1526      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1527      tutorial_global_oce_optim     <- empty for now (David ?)
1528      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1529     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1530    o correct a sign problem in cost_scat.F
1531    o obcs and ptracers: fix boundary conditions for advections schemes
1532      with larger stencil
1533    o thsice adjoint: start
1534    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1535      completeness
1536    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1537      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1538    o ptracers adjoint:
1539      * avoid extensive recomputatations
1540      * fix missing re-init. of gptr (missed by TAF)
1541    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1542      me to turn off the excessive output to STDOUT that this package produces
1543    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1544      and add those terms in Vector-Invariant formulation.
1545    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1546      if the control period (xx_hfluxperiod etc) is 0
1547    o in profiles pkg, clean routines and fix details
1548    o in ecco pkg, reading ssh data:
1549      fix problem in case the model does not start at iter0=0
1550    o fix mnc-pickup/restart for ptracers
1551    o new package prifiles:
1552      code to compute profile-based cost by Gael Forget
1553      (modifs in ecco, ctrl, autodiff)
1554    o Benign bug fix in initialization (spotted by M. Mazloff) of
1555      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1556    
1557    checkpoint58c_post
1558    o adjoint: finish NLFS adjoint and provide reference output in
1559      verification/global_ocean.90x40x15/results_ad_nlfs
1560    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1561      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1562      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1563      with SEAICE_CGRID defined.
1564    o move calendarDumps from "data" to "data.cal" and clean-up the code
1565      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1566    o add useEXF & useCAL flags (for now, set in hard-coded way)
1567    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1568      (were missing in NH mode, and wrong in quasihydrostatic mode).
1569      waiting for Chris updated version of calc_gw to add those CALLs.
1570    o fix bug in quasihydrostatic S/R ;
1571      add a test for this option: global_ocean.90x40x15.qshyd
1572    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1573      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1574    o add on/off flag useOffLine for package OFFLINE
1575    o seaice:
1576      - modify advection so that it works also on the C-grid
1577      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1578        problem in multi-tile runs with C-grid
1579      - add flags for clipping ice velocities and/or masking solver forcing
1580      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1581        C-grid solver
1582      - added a few comments to seaice_diffusion.F
1583      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1584        are now exclusive)
1585      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1586        required re-ordering the code a little:
1587       + make DAIRN global variable (defined in SEAICE)
1588       + move computation of the viscosities eta and zeta into a new separate
1589         routine (because I need to recompute them in seaice_ocean_stress.F)
1590    
1591    checkpoint58b_post
1592    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1593      update output.txt of exp. aim.5l_cs.thSI
1594    o various mnc cleanups and improvements:
1595      + shrink lookup tables by factor of ~4
1596      + better error reporting when running out of lookup space
1597      + able to handle longer path/file names (up to 500 chars)
1598    o adjoint:
1599      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1600      - TBD: "hidden" mom_vecinv recomp. in dynamics
1601    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1602     (allow to differentiate between forcing components using new integer flags:
1603      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1604     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1605    o ecco
1606      - enable trend removal from SSH anomaly obs.
1607    o adjoint
1608      - a fix for PmEpR when #undef EXACT_CONSERV
1609      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1610      - try to fix "hidden" recomp. in forward_step for NLFS
1611        (NLFS seems broken sometimes after I checked it in)
1612    o seaice:
1613     - add c-grid version of the dynamic solver:
1614       + three new routines that are the c-grid substitute lsr, dynsolver
1615         and ostres
1616       + put a few fields that were local to dynsolver into global common
1617         blocks, so that I can move the computation of stresses etc into
1618         seaice_lsr (saves coding but may break the adjoint).
1619     - replace more hardwired parameters by runtime parameters
1620     - add ice masks that mask the rhs of the implicit solvers where there
1621       is no ice (commented out in seaice_dynsolver, because i am not sure
1622       if this works properly), eventually this should replace the clipping
1623       of ice velocities in seaice_dynsolver to +/-40cm/s.
1624    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1625      include it only where its needed
1626    o move balancing of fluxes before the call of external_forcing_surf
1627    o seaice:
1628      - correct units of turning angles (now they are really in degrees)
1629      - move computation of GWATX/Y out of main routine into dynsolver
1630      - initialize GWATX/Y in seaice_init
1631    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1632      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1633    o seaice: add runtime flags for turning angles (default to zero)
1634    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1635      and trend from exf forcing and ctrl control adjustments
1636    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1637      (since checkpoint57x_post)
1638    o change the default rotation period to 86164.s = the Earth rotation
1639    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1640      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1641    o seaice advection: add code for choosing between the default (2nd order
1642      central differences) and multiDim advection schemes provided by
1643      pkg/generic_advdiff
1644    o seaice:
1645      - removed all references to SEAICE_GRID.h fields from
1646        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1647        (cubed-sphere configuration will change a little)
1648      - grid computations in seaice_init are obsolete now.
1649      - cleaned up code a little so that is easier to read (hopefully).
1650      - added new (better?) discretizations of default advection and diffusion
1651        (turn on with SEAICEuseFluxForm)
1652      - replace 1 in 3d global fields by kSurface in growth.F
1653      
1654    checkpoint58a_post
1655    o seaice:
1656      - bug fix in advect.F
1657    o shelfice:
1658      - separate shelfice load anomaly from pload (breaks with time
1659        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1660        Its default is 0., but it may be computed more cleverly from (unknown)
1661        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1662        done offline. A good approximation of the pressure load anomaly is
1663        necessary to avoid large initial adjustment processes underneath
1664        deep-reaching shelfice.
1665      - small fix in ISOMIP shelfice_thermodynamics
1666      - add more sophisticated thermodynamics of Hellmer (1989), this is
1667        now the default
1668      - give a few constants more intuitive names
1669    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1670      if bulk formulae are used in long integration (especially EmPmR). Turn
1671      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1672      if balancePrintMean, the imbalance that is substracted is printed to
1673      STDOUT.
1674    o fix bug (typo) in obcs_apply_eta.F
1675    o add a new package shelfice which enables us to model the circulation
1676      underneath shelf-ice with draughts of hundreds of meters.
1677     - works
1678     - to do: + include improved thermodynamics
1679              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1680                instead of new field kTopC
1681              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1682                instead of new field R_shelfIce and new code in ini_depth.F
1683                and ini_mask_etc.F?
1684              + adjust vertical mixing schemes?
1685    o seaice pkg:
1686     - add a cpp-flag to include a simple formula for a salinity dependent
1687       freezing point of sea water at the surface
1688     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1689       meridional stresses are now different (and hopefully correct)
1690    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1691       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1692       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1693    o pkg/diagnostics: add options and parameters for regional-statistics
1694       diagnostics ; define regions by reading a region-mask from a file
1695       (might add other options later)
1696    o pkg/bulk_force:
1697     - add option and parameters to use AIM surface-flux formulae.
1698     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1699       others forcing fields (defined in PARM05, parameter file "data") are loaded
1700       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1701     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1702     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1703     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1704       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1705     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1706    
1707    checkpoint58
1708    o add "--embed-source" option to genmake2 which, when the supporting
1709      tools can be compiled (as determined by genmake2) will turn on the
1710      embed_files package which then embeds the entire MITgcm source code
1711      (*.[fFhc] + Makefile) used for the build within the executable
1712      - requested by CNH but off by default
1713      - adds a paltry <9MB to the mitgcmuv executable in most cases
1714      - only writes the output when useEMBEDSRC in eedata is true
1715    o clean up 3-dim. relaxation codes:
1716      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1717      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1718      * Thanks to Tom Haine for testing!
1719    
1720    checkpoint57z_post
1721    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1722      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1723    o fix the pickup behavior for obcs in combination with ptracers
1724    o fix a bug in ptracers_external_fields_load
1725    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1726      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1727    o transfered surface NH pressure to eta field (if exactConserv).
1728    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1729         and update lab_sea output.txt file.
1730    o completing 3-dim. relaxation code: additional term
1731         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1732      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1733      * At compile time, in "EXF_OPTIONS.h" set
1734          #define  ALLOW_CLIMTEMP_RELAXATION
1735          #define  ALLOW_CLIMSALT_RELAXATION
1736      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1737          tauThetaClimRelax3Dim = 15552000.0,
1738          tauSaltClimRelax3Dim  = 15552000.0,
1739      * 3 cases:
1740          1) Use a constant-in-time 3-dim. field
1741          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1742          3) Real-time relax. to time-evolving prescribed field
1743    o Adding Laplacian-type smoothness constraint on
1744      initial and boundary (forcing) controls (ic, bc)
1745      * enable at compile-time via
1746        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1747      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1748      * Absolute scale somewhat unclear so far
1749      * no area weighting was included since no other cost term does so far
1750    
1751    checkpoint57y_post
1752    First step for a NLFS adjoint
1753    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1754    o new init. routines for calc_r_star, calc_surf_dr
1755    o still need to deal with ini_masks_etc
1756    o testreport seemed happy
1757    checkpoint57y_pre
1758    
1759    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1760    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1761    o add new offset feature to offline pkg (plus minor cleanup)
1762    o cfc fixes for final year of integration
1763    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1764      be in GCHEM_OPTIONS).
1765    
1766    checkpoint57x_post
1767    o fix testreport Pb in multiple test experiment.
1768    o cleanup our namelist syntax in verification:
1769      - make it more F95 standards compliant (some work still needed)
1770      - allows the vast majority of our tests to work with gfortran
1771    o Non-Hydrostatic:
1772     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1773     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1774    o Allow to apply AB on T,S rather than on AB(gT,gS):
1775     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1776     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1777       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1778     - need a "clever" read_pickup to restart from the other AB formulation
1779    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1780    o remove some unused variables (reduces number of compiler warnings)
1781    o adjoint
1782      * Disable useVariableViscosity for adjoint for time being
1783        (there are a number of extensive recomputations)
1784      * Initialize certain variables needed for adjoint
1785    
1786    checkpoint57w_post
1787    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1788                 fix the singleCpuIO RS version of MDSWRITEFIELD
1789       and add a WARNING if using globalFiles=T with multi-processors.
1790    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1791      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1792    o tracer advection scheme:
1793      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1794       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1795       was not very convenient).
1796      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1797       (further tests needed for the implicit DST & Flux-Limiter schemes).
1798    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1799      and sRef for convenience, handy, when you want to initialize
1800      ptracers in a large domain with a constant non-zero value. Also,
1801      untangle ptracers_init.F a little.
1802    
1803    checkpoint57v_post
1804    o change dome exp. to use variable viscosity in side-drag terms.
1805    o remove all the files from the cfc_offline test since they are now
1806      incorporated into tutorial_cfc_offline which has been producing
1807      identical results for a few days of testing
1808    o add new parameter: sideDragFactor to enable half-slip-side BC
1809      and change side-drag S/R to use viscosity from mom_calc_visc
1810      (can switch back by setting sideDragFactor=0.); affects results at
1811      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1812       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1813    o vorticity & strain are now computed without masking, to account for
1814      no-slip-side BC in variable viscosity calculation ; mask is applied
1815      anyway later on, before computing advection/coriolis terms.
1816    o modify exp4 to test new obcs support for reading from external files
1817      and for passive tracers
1818    o fix behavior of ptracers_monitor when monitor output is written to a
1819      netcdf-file; still not independent of monitor.F (writes in the same
1820      file).
1821    o change default value of tRef (put a uniform, meaningful value for ocean
1822      & atmos) and initialize sRef (was missing, as Martin mentioned).
1823    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1824      to be proportional to enstrophy dissipation length.  Thus,
1825       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1826      This is now consistent with Smagorinsky and with the manual.
1827    
1828    checkpoint57u_post
1829    o OBCS and PTRACERS: add open boundary support for passive tracers
1830      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1831        OB-values from file; this is not different from the way theta and salinity
1832        are treated
1833      - however, Orlanski-radiation conditions are not supported, and the model
1834        will stop if you use pTracers and Orlanski at the same time.
1835      - beefed up the rountine obcs_external_fields_load: now only those open
1836        boundary values are overwritten with values from files for which there
1837        are really files, otherwise the OB-fields remain untouched. This makes
1838        it possible to use different OBs at different ends of the domain (as
1839        with EXF)
1840    o reduce number of exch calls in shap_filt (s2).
1841    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1842      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1843    
1844    checkpoint57t_post
1845    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1846    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1847      same truncation, independent of the face number: affects affects several
1848      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1849    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1850      note that biharmonic viscosity + no-slip was not tested in any experiment.
1851    o fix bug in non-linear free-surf side-drag ; generate new output for
1852      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1853    o make mnc honor the writeBinaryPrec flag for most kinds of output
1854    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1855    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1856      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1857    o add brackets in multi-terms sum to get same truncation, independent of
1858      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1859      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1860    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1861      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1862      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1863      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1864      Suggested values of viscosity parameters found in mom_calc_visc.
1865      Many new viscosity diagnostics available.
1866    
1867    checkpoint57s_post
1868    o Add clearing-house for viscosity calculations, mom_calc_visc and
1869      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1870      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1871      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1872      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1873      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1874      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1875      ViscAhStrain and viscAhTension are now retired.
1876    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1877    o In response to JMC's bug report, genmake2 now ignores any soft-links
1878      that it finds in the *current* directory when searching for files.
1879      Soft-links found in any other source directories will still work as
1880      they did before.
1881    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1882      a C routine to unlimit the stack size
1883    o mnc-ify pkg/aim snapshot vars
1884    o mnc-ify pkg/land as requested by Daniel
1885    o various changes to mnc including:
1886      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1887      - output can now be grouped so that all files within a group
1888          change the ITER portion of their names in lock-step together
1889      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1890          and works with both EXCH1 and EXCH2 (but needs more testing)
1891      - writing works for all verification test cases w/ g77 on Linux
1892    
1893    checkpoint57r_post
1894    o make MNC variable initialization happen earlier
1895    o add diagnostics for (almost) each term of the momentum Eq.
1896    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1897    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1898    o remove MINIMAL_TAVE_OUTPUT option ;
1899      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1900    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1901      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1902    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1903    o add time-dependent SST, SSS control
1904    o cost terms in ecco/ modularized (new cost_generic.F)
1905    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1906    o new infrastructure for seaice model vs. obs misfits in seaice/
1907      * driver from the_main_loop.F is seaice_cost_driver.F
1908      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1909      * gradient check in Exp. 6a of natl_box_adjoint/
1910    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1911      (see README file)
1912    
1913    checkpoint57q_post
1914    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1915    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1916      - bug was reported by Jean-Michel and Ian Fenty
1917    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1918      update exp. cpl_aim+ocn output.
1919    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1920      Needed for high-res. runs with large global files
1921      to be able to limit tapelev size
1922    o Changed some tests for adjoint:
1923      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1924      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1925      * global_ocean.90x40x15/ back to default 3-level checkpointing
1926    o Modifications to enable scripted COMMON to MODULE conversion
1927      * verification/OpenAD/code/ has necessary scripts and description;
1928      * converts, compiles and runs successfully;
1929    
1930    checkpoint57p_post
1931    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1932    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1933      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1934    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1935    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1936      (was already the case for dissipation with mom_vecinv,
1937       and also the case for grad.PhiHyd when staggered-timeStep)
1938      This will allow to put dissipation out-off the AB time-stepping.
1939     Unfortunately, affects truncation error. Update output of exp. that "fails"
1940      (cg2d matching number) and leave the others for later: front_relax(10),
1941      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1942      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1943    
1944    checkpoint57o_post
1945    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1946      (2) its ready to be documented during the 20050801 DocFest
1947    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1948      for ideal_2D_oce and lab_sea on linux_ia32_g77
1949    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1950      in global1x1_tot/code_seaice_adj to access indices 32, 33
1951      (worth another tag)
1952    
1953    checkpoint57n_post
1954    o adding precip control xx_precip 32
1955    o adding swflux control xx_swflux 33
1956    o Replacing 10 forcing penalty cost routines by 1 generic.
1957    o Implementing partitioning in time-mean and variable adjustment
1958      for atmos. state.
1959    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1960    o in natl_box_adjoint:
1961      * updated exp 1 to 10
1962        (but does not have time-mean vs. variable split results yet)
1963    o updated global1x1/*_seaice_adj/
1964      to incorporate latest changes
1965    o enable useSingleCpuIO for mdsio vector routines
1966      (applies in particular to tapelev I/O)
1967    o removed inefficient K-loop in all active_file*control*.F
1968    
1969    checkpoint57m_post
1970    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1971      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1972    o pkg/exch2: filling of face-corner halo regions is optional
1973      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1974    
1975    checkpoint57l_post
1976     tag before updating tutorials (pre-release-2)
1977    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1978       for output and interpolation of input fields onto model grid)
1979    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1980       Affects results of exp. rotating_tank ; update output.txt.
1981    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1982          and taking the square quantity and/or using a fraction-weight field.
1983    o fix aim_diagnostics_init.F mate numbers.
1984    o add mnc output capability to diagnostics/diagstat and update
1985      our cvsignore files for the ACSII output generated
1986    
1987    checkpoint57k_post
1988    o lab_sea now uses diagnostics package and provides a suite of
1989      new EXF diagnostics output.
1990    
1991    checkpoint57j_post
1992    o exf
1993      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1994        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1995        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1996      * extended diagnostics output
1997        - now includes all EXF variables
1998        - hs, hl moved to common block
1999        - separate S/R for diagnostics, called after ctrl vector is added
2000        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2001        - EXFqnet contains true Qnet (i.e. includes qsw)
2002      * updated verif. lab_sea, global_with_exf
2003      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2004        to ensure that diagnostics sees a true EXFqnet
2005    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2006    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2007      several times with different frequencies.
2008    o mnc-ify the thsice package as requested by Daniel Enderton
2009      - the monitor--MNC output needs work
2010      - many attributes need to be added (most are currently blank)
2011    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2012      - many attributes need to be added (most are currently blank)
2013    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2014    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2015    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2016      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2017         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2018    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2019     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2020    
2021    checkpoint57i_post
2022    o Diagnostics package was changed: diagnostic allocation is now deactivated
2023      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2024    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2025      add 1rst Order upwind vertical Shear.
2026    o add a quick fix for A/B checkpointing in OFFLINE mode
2027    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2028      end-run around the C/Fortran linking horror in eesup/src/timers.F
2029    o added pkg/runclock: allows user to terminate run based on wall clock
2030    o added non-hydrostatic scaling parameter: nh_am2
2031    o pkg/my82: futile attempt to make results compiler-independent by adding
2032      some "_d 0", etc. no effect.
2033    o for mnc output, fill the 'T' coordinate var with myTime and create a
2034      separate 'iter' variable for iteration count
2035    o pkg/diagnostics:
2036      add new capability: output of Global/Regional & per-level statistics ;
2037      tested against monitor output (including land & thSIce) on various exp.
2038    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2039    
2040    checkpoint57h_done
2041      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2042      data.diagnostics, data.gchem, data.ptracers) is done.
2043    
2044    o pkg/diagnostics: prepare for Global/Regional statistics.
2045      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2046    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2047      and rename it: DIFFERENT_MULTIPLE
2048    
2049    checkpoint57h_post
2050    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2051    o pkg/diagnostics: change output frequency, now in seconds (instead
2052      of Nb of iterations). This requires to change data.diagnostics.
2053    checkpoint57h_pre
2054    
2055    o in mnc, let the user create the output dir if both mnc_outdir_date
2056      and mnc_outdir_num are false
2057    o add fflags() to pkg/diagnostics which allows one to specify, on a
2058      per-file basis, the file precision [default behavior is unchanged]
2059    o added diagnostics to pkg/kpp, including computation of mixed layer
2060      depth based on a temperature/density criterion
2061    o updated verification/natl_box to test the new pkg/kpp diagnostics
2062    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2063    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2064    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2065      not mnc -- this mistake was found by JMC and is now corrected
2066    
2067    checkpoint57g_post
2068    o add Adams-Bashforth 3rd Order time stepping:
2069      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2070      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2071    checkpoint57g_pre
2072    
2073    o make lambda[Theta,Salt]ClimRelax spatially varying
2074      (default remains spatially uniform constant based on tau)
2075    o added new control variables
2076      * init. uVel, vVel, etanN
2077      * lambda[Theta,Salt]ClimRelax
2078    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2079      (suggested by G. Forget)
2080    
2081    checkpoint57f_post
2082    o add parameter "baseTime" = model base time = time at iteration zero
2083      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2084      account for baseTime shift
2085    o move Coriolis arrays from PARAMS.h to GRID.h
2086    checkpoint57f_pre
2087    
2088    o mnc-ifying the seaice package
2089    o introduced an alternative length scale calculation for use in the limiting
2090      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2091    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2092    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2093      as well as grad(vort3).  Made it compatible with both approximate form
2094      for the cubed sphere and full form of these gradients.  Added flag
2095      useFullLeith to select between approximate and full form.  
2096    o add "d0" in getcon.F to reduce differences between compilers/platforms
2097      update output.txt of exp. fizhi-gridalt-hs
2098    o change port_rand funtion to allow to set the seed.
2099    o fix obscure MNC bug involving conversion between reals and integers
2100      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2101        new version is now more standards-compliant
2102    o adjoint-related modifications
2103      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2104      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2105      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2106    
2107    checkpoint57e_post
2108    o Adding eddy stress controls a la Ferreira et al.
2109    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2110    
2111    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2112      update output.txt of exp. fizhi-gridalt-hs
2113    o add more "Z" dimensions and associated coordinate vars to MNC
2114    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2115    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2116      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2117      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2118      months and years.  Requires pkg/cal.
2119    o diagnostics: add pickup functionality
2120      - off by default for backwards compatibility
2121      - current version only uses MDSIO -- MNC will be added
2122    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2123    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2124    
2125    checkpoint57d_post
2126    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2127    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2128      output from the diagnostics package
2129    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2130    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2131      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2132    o add coordinate variables to the MNC output from the diagnostics package
2133    o change MNC-flags default value: true when useMNC=TRUE
2134    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2135      the ability (off by default) to read the grid information using MNC
2136    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2137    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2138    o do snap-shot diagnostics at the middle of the time-interval (instead of
2139      at the end).
2140    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2141      new test for AIM with thSIce + slab-ocean
2142    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2143    o move state variable diagnostics to the beginning of the time step ;
2144      (note: still needs some work specially for snap-shot diagnostics)
2145      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2146    
2147    checkpoint57c_post
2148    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2149    o generate new output.txt files on faulks with g77 & the new -ieee option
2150    checkpoint57c_pre
2151    
2152    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2153      update output.txt of exp. global_ocean.90x40x15
2154    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2155      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2156    o add saltFlux(+File) forcing capability with periodicExternalForcing
2157    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2158    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2159    o improvements for the MNC output from DIAGNOSTICS:
2160      - correct handling of the unlimitied dimension
2161      - all dims now have associated coordinate variables
2162      - variables located at U, V, and Corner ("Z") points are now written
2163        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2164        *all* data points are output
2165    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2166    o added pkg/seaice/seaice_monitor.F
2167    o mdsio_readfield.F can now read files visible only to master MPI process.
2168    o pkg/seaice: some test code for ice-modified ocean stress
2169    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2170      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2171      spurious negative numbers for precipitation and humidity.  Will cause
2172      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2173    o pkg/ctrl/
2174      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2175        May be enabled via doPackDiag
2176      *  introduce z-scaling of
2177         + gradient (doZscalePack) and
2178         + control (doZscaleUnpack)
2179    o pkg/mdsio/
2180      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2181      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2182    
2183    checkpoint57b_post
2184    o simplify options in diagnostics_fill arguments (remove weird combinations)
2185    o fix MNC coordinate variables so that they now contain per-face index
2186      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2187      general, EXCH2 grids are only aligned to a "local" coordinate system
2188    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2189    o Implement instantaneous output within pkg diagnostics:
2190      setting a negative frequency in data.diagnostics produces
2191     "snap-shot" output (as opposed to time-average if freq > 0)
2192    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2193      NOTE: change ptracer diagnostics name: use 2 characters to work with
2194            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2195    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2196      becomes the coordinate variable for the 'T' dimension
2197    o add CF-style coordinate variables to MNC
2198      - just a first cut:  numbers are meaningless on the cubesphere and
2199        missing along the T axis but otherwise it works!
2200    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2201    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2202    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2203      this is based directly on what the model compute, so that the content of
2204      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2205    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2206    o clean up build options files for SunOS, in particular
2207      - remove -traditional from xmakedepend
2208      - change -xarch=v9 to -xarch=native for f77
2209      - restore use of make (not gmake)
2210      - add CC=gcc if using g77
2211    o changes per discussion of AM, JMC, & EH3 today:
2212      - move redundant "grid" variables out of "state" -- in preparation of
2213        creating proper CF-style coordinate variables and in recognition
2214        that any/all grid variables can be easily copied (eg. w/NCO) from
2215        the grid files into any of the other NetCDF files
2216      - *always* output grid variables with MDSIO (this will eventually be
2217        changed)
2218      - output MNC grid file if useMNC is true
2219    o every instance of _END_MASTER() has been found and replaced with
2220      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2221      preprocessors
2222    o re-arrange diagnostics pkg initialisation:
2223     - allow each package to extend the available diagnostics list
2224     - add some checking and fix small problems (multi-threaded, ...)
2225     - new S/R diagnostics_fill (replace fill_diagnostics):
2226       look through the short list of active diag. (instead of the long list)
2227       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2228    
2229    checkpoint57a_post
2230    o this set of changes restores TAMC compatibility
2231      tested for global_ocean.90x40x15 adjoint on trough
2232      (what a pain)
2233    
2234    checkpoint57a_pre
2235    o some modifs in tools/build_options for sunos
2236    o call ctrl_pack for ctrl at end for optimcycle=0
2237    
2238    checkpoint57
2239    o add horizontal bi-harmonic viscosity for vertical velocity
2240      - new parameter viscA4W (defaults to viscA4)
2241      - affects only non-hydrostatic code
2242      - to be done: no-slip lateral boundary conditions
2243    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2244    o implement Implicit Vertical advection for pTracers
2245    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2246      (implemented also for implicit vertical diffusion & advection)
2247    o OBCS: extend application of tracer open boundary conditions
2248      to a strip beyond the boundary of width Olx/Oly
2249    o add call monitor to TAF set of required calls (flow directives)
2250      and include in natl_box_adjoint
2251    o untangle a few ifdefs related to cost, ctrl, autodiff
2252      untangel a few ALLOW_ECCO_OPTIMIZATION
2253    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2254      (theta2, salt2 in ecco_cost_weights)
2255    
2256    checkpoint56c_post
2257    o OBCS as control variables
2258      - update ctrl_ad_diff.list, obcs_ad_diff.list
2259      - remove balance of obcs controls from default
2260      - fix index bug nobcs in ctrl_init
2261      - fix dummy fields filen in ctrl_pack
2262      - add dummy weights for obcs
2263    o lsopt: comment out fort.94 output
2264    o optim:
2265      - remove unnecessary header files
2266      - adjusted namelists
2267      - add xerbla.F to Makefile
2268    o exf:
2269      - multiple modifications of exf_check_range
2270      - unit change in exf_init_runoff from [m/year] to [m/s]
2271    o mdsio:
2272      - i/o-vector change debugLevel from debLevA to debLevB
2273    
2274    checkpoint56b_post
2275    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2276      is called from DO_THE_MODEL_IO
2277      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2278      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2279      - clean up PTRACERS_WRITE_TIMEAVE a little
2280    o add another verification experiment that tests both the cfc-pkg and
2281      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2282      reactive tendencies treated inline with regular timestepping
2283    o testreport previously did a lousy job of comparing small numbers, so
2284      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2285      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2286      testreport.
2287    o ptracers_monitor: bug fix for MPI
2288    
2289    checkpoint56a_post
2290    o GCHEM: finish reorganizating the package
2291      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2292        (introduces another 3D-array for each passive tracer, but only if
2293        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2294        gchemTendency is not needed because the timestep is done separately)
2295      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2296      - GCHEM is now---more or less cleanly---separate from PTRACERS
2297      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2298        so clear to me how that should be done in a general way.
2299    o CFC: improve formatting of output in CFC_ATMOS
2300    o PTRACERS:
2301      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2302        that ALL experiments with ptracers enable can be checked. This makes
2303        GCHEM_MONITOR obsolete.
2304      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2305        monitorFreq
2306      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2307    o add PTRACERS (PTR0[1-5]) to testreport output
2308    o exf_check_range:
2309      * default changed to .TRUE.
2310      * will check values for niter0 if debLevA, every timestep if debLevB
2311      * STOP in exf_check_range if 'out of range'
2312      * range chosen generous to allow for potential extema
2313      TBD: a version with stricter range
2314           permitted range would be runtime parameters
2315  o GMredi:  o GMredi:
2316    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2317    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2320  o GCHEM:
2320    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2321      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2322    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2323      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2324        this flag is now only visible within GCHEM-pkg routines.
2325      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2326        be replaced by a 3D array that is computed before thermodynamics; for
2327        this, the tracer ID iTracer had to be included into the parameter list
2328        of ptracers_forcing
2329      - set up forward_step to call gchem_forcing, that will replace
2330        gchem_forcing_int in ptracers_forcing
2331      - cleaning up
2332  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2333    
2334  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2547  o add two new packages
2547    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2548    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2549      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2550      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2551  o add offline package  o add offline package
2552  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2553    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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