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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1116 by mlosch, Wed Jun 3 10:01:20 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs/exf
8      - exf_getffieldrec.F: add a few ". _d 0" and
9                            add code to catch the case fldperiod = 0.  
10      - obcs_precribe_read.F: change if statements so that they match
11                              the variable type (_RL)
12      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
13        exf_iprec) as part of namelist EXF_NML_01
14    o pkg/mdsio:
15      - read/write tiled (local) files: read/write 1-level tile chunk at a time
16        (instead of segment of length sNx); expected to speed up tiled IO.
17    o pkg/exch2:
18      - take buffer copy from/to array out of S/R exch2_send/recv into new
19        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
20        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
21      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
22      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
23        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
24        including Topology header file (and common blocks).
25      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
26        remove 2nd exch call in exch2_s3d_rx (no longer needed).
27      - document S/R arg. list (+ update some comments)
28    o pkg/seaice:
29      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
30        of LSR (this change is expected to change the results slightly because now
31        it uses slightly difference moduli from the second last LSR solution, but
32        that is more consistent with the stress computations; this part of the code
33        is not tested in the verification experiments)
34      - fix diagnostics for flux of ice in case of B-grid
35      - turn strain rates eij and press into global fields within global
36        common block in SEAICE.h for more straighforward diagnostics
37      - fix diagnostics for principal stress components, press, zeta, eta
38        to give something meaning full
39    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
40      new output (all 4 tests) using default rotationPeriod.
41    o pkg KPP:
42      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
43      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
44        and normal grid from 1 to Nr)
45    o Fix computations of L4rdt in mom_calc_visc.F
46    o eesupp:
47      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
48      should be called before a "stop" if we know that all process are going
49      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
50    
51    checkpoint61o
52    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
53    o model/src/ini_curvilinear_grid.F:
54       compute angleSin/CosC when they are not read from a file
55    o pkg/seaice:
56       add pseudo time stepping for LSOR
57    o pkg/exch2:
58       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
59    o pkg/seaice:
60       Adding separate sea ice albedo, drag coefficients, and HO in Southern
61       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
62    o SingleCpuIO:
63       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
64    o pkg/seaice:
65       put exchanged variable in (local) common block for MPI+Multi-Threads
66       to work (necessary with exch1, and for now with exch2 too).
67    o verification: to get more experiments tested with mpi, mth and mpi+mth,
68      change tiling of:
69       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
70       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
71      update output of exp:
72       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
73       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
74      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
75                       (note: output.txt generated on faulks using only 1 tile)
76    o eesupp & mdsio (SingleCpuIO):
77     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
78       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
79       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
80     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
81     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
82       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
83    o pkg/exch2:
84     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
85       read parameter file "data.exch2" if it exists; otherwise try default regular
86       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
87     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
88       with new code (not to be used, just as a backup solution).
89     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
90       in utils/exch2/input.
91    
92    checkpoint61n
93    o eesupp & mdsio (SingleCpuIO):
94      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
95        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
96        receive real*4 array (instead of real*8) to read/write 32.bit files.
97        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
98         and remove new mapping S/R)
99    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
100      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
101        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
102        when using exch2. Add S/R to map global io-buffer to global model array.
103      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
104    
105    checkpoint61m
106    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
107      and add 3 other S/R for other types (R4,R8,RS).
108      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
109    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
110     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
111     - reduce number of macro definitions (keep only those which are used);
112       can always call directly the corrresponding S/R if needed.
113     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
114       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
115     Fixed wrong type of arg in:
116       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
117       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
118     To fix: global_sum of var in common block is wrong (multi-threaded) in:
119       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
120     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
121    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
122      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
123    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
124    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
125      edges are closed (zero depth); might happen with "blank tiles";
126      for now, disabled if using OBCS.
127    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
128      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
129    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
130      to reduce length of 1.D array print in STDOUT.
131    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
132      + use 48 tiles (16x8): this will allow to test "blank tiles".
133    o start to test MPI + multi-threaded (change testreport to skip tests
134      where number of tiles do not match).
135    o genmake2: add option "-omp" to turn on Open-MP ;
136      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
137    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
138      and keep the original tile numbering. Note: compatible with old
139      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
140    
141    checkpoint61l
142    o Overlaps had been forgotten in calculating ijk keys : fixed
143    o fix cyrus makedepend for gcc 4.4
144    o experiment fizhi-cs-aqualev20:
145      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
146      and generate new output. Note: new output is much closer to the old
147      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
148      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
149    o pkg/fizhi:
150     - change to avoid indices going deliberately over array-bounds
151     - remove unnecessary MPI stuff
152     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
153     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
154       does not go over array-bounds and therefore returns reliable output.
155     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
156       this S/R has 4 output arguments, which are used inside "get_alarm";
157       when it is called with the same variable "ndum" in place of several
158       output arguments, this produces weird side effect inside "get_alarm"
159      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
160       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
161       address) and produces error.
162    o tools/gemake2: (March 27-29 2009)
163      with option "-mpi": link *_mpi files from "MODS" dir (this is what
164      testreport does).
165    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
166    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
167       update lab_sea.lsr & lab_sea.salt_plume results
168    o pkg/seaice:
169      Major overhaul of the LSOR solver: change discretization from original
170      finite differences to finite volume. The old routine is still in the
171      file seaice_lsr.F and can be turned on with the CPP-flag
172      SEAICE_OLD_AND_BAD_DISCRETIZATION
173      Along with this change, the discretization of the strain rates is changed.
174      The same flag turns on the old discretization in seaice_calc_strainrates.F
175      All verification experiments with seaice are affected (except for
176      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
177      results by setting the above flag.
178      Further changes involve changes in defaults:
179      - ALLOW_FLOODING is defined and turned on by default
180      - SEAICEadvSnow = .true. is now the default
181      - SEAICEadvSalt = .true. is now the default
182      - SEAICEadvAge  = .true. is now the default
183      - SEAICE_clipVelocities  = .false. is now the default
184                                         (as per J. Zhang's recommendation)
185      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
186        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
187      - seaice_growth: replace computation of UG by a simple copy from wspeed
188    
189    checkpoint61k
190    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
191      seaice_lsr: fixed a few metric terms,
192                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
193                  add more debugging diagnostics
194      seaice_evp: removed superfluous many metric terms of FV discretization
195                  of stress divergence
196                  affects lab_sea, lab_sea.hb87
197      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
198                  of stress divergence for non-evp solver
199                  (this part is not tested anywhere)
200      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
201                  they were effectively only half slip
202                  affects lab_sea.hb87
203      updated all relevant verification experiments (except lab_sea//output_adm.txt
204        which was left over, but fails at level 7 & 6)
205    
206    checkpoint61j
207    o pkg/seaice: turn a few hard wired parameters into run time parameters
208    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
209      time in seconds as promised by the usints in seaice_monitor and exf_monitor
210    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
211      that are not cubed-sphere grids
212    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
213    o pkg/ctrl:
214      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
215    o non-hydrostatic (calc_gw.F):
216      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
217      update output of exp. global_ocean.cs32x15.viscA4
218    o remove backward compatibility for thetaMin,phiMin
219      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
220    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
221      interpolated wind field not only for curvilineargrid=.true., but also
222      for a rotated grid (rotateGrid=.true.)
223    o pkg/exf: add capability to bypass interpolation for runoff
224      by setting yet another CPP-flag
225    o eesupp/src, B-grid exchange:
226      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
227    o autodiff
228      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
229      allows to switch to single-prec common blocks;
230      corresponding switch occurs in tamc.h, integer isbyte
231      TAF store directivs "byte" and "kind" seem equivalent;
232      Most tamc.h have been updated correspondingly.
233    
234    checkpoint61i
235    o autodiff:
236      fix autodiff_sore/_restore indices for obcs
237      (spotted by I. Hoteit, M. Mazloff)
238    o pkg/autodiff, pkg/ctrl:
239      Add flag to reduce all tapelev I/O to single-prec.
240      In data.ctrl set
241        doSinglePrecTapelev = .TRUE.
242    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
243      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
244    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
245      real fresh water flux (not yet)
246    o pkg/mdsio & rw:
247     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
248     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
249    o pkg/flt:
250     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
251       init_fixed & ini_varia.
252     - clean-up & simplify linear interpolation S/R:
253       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
254     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
255     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
256     - add vert. coordinate & horiz. indices to output files.
257     - change vertical position in initial condition, from index to depth [m].
258     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
259       (easier to get to a curvilinear grid) ; delX,delY no longer used.
260    o pkg/ggl90: a few modifications:
261     - fix bottom boundary condition, and interpolation of KappaE
262       near top and bottom
263     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
264     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
265     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
266    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
267      (maintain temporary backward compatibility, until next checkpoint)
268    
269    checkpoint61h
270    o pkg/diagnostics with "periodic averaging diagnostics":
271      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
272    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
273    o pkg/obcs: fix loop ranges for balancing code
274    o pkg/flt:
275     - improve criteria for finding which tile owns a float.
276     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
277    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
278      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
279      with ocean biogeo)
280    o pkg/flt:
281     - do some cleaning and fix the restart ;
282     - add output.txt in flt_example/results to get this pkg tested.
283    o genmake2: add an EXTENDED_SRC option and flag.
284       for now, cannot be turned on on command line (only through genmake_local)
285    o pkg/mdsio: read/write vector:
286     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
287     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
288       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
289     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
290      (drop to 4 digits matching for grad). But this test does not look very
291      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
292    
293    checkpoint61g
294    o pkg/flt:
295      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
296       + make OPTIONS file more standard.
297      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
298      - fix _BYTESWAPIO CPP-Flag
299      - standard reading of file-parameter "data.flt"
300      - fix argument list of S/R FLT_RESTART
301      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
302    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
303    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
304      a still unfixed compiler/optimization bug
305    
306    checkpoint61f
307    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
308      update results of global_ocean.cs32x15.icedyn test.
309    o move getcon.F from model/src to pkg/fizhi.
310    o pkg/exf: add parameter for extrapolation of temp up to the surface
311       and option to prevent negative evap (in bulk_largeyeager04 only).
312    o Prather Advection scheme: fix tracer conservation for divergent flow
313      (e.g., when using NonLin Free-Surface).
314    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
315    o gmredi (Visbeck-variable-K):
316     - add more parameters to Visbeck-variable-K.
317     - use a 5 points average for dSigmaR in Visbeck-K calculation
318       (more "homogenous": same stencil and same weights as in dSigmaH)
319     - update output of ideal_2D_oce experiment.
320    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
321      (#undef REAL4_IS_SLOW)
322     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
323       coordinate variable
324     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
325       (surface forcing fields), removes some of the functionality
326     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
327     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
328       probably not all: copy _RS surface flux fields to RL field before
329       calling DIAGNOSTICS_FILL
330     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
331       real*4 (CALL EXCH_*_RS) versions.
332     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
333       (generate new output).
334    
335    checkpoint61e
336    o gmredi (Visbeck-variable-K):
337      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
338      - change computation of Visbeck-K where Slope > Smax :        
339        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
340        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
341    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
342      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
343    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
344    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
345      does not become too large (to avoid precision problems in implicit-diffusion
346      solver); update ideal_2D_oce output.
347    o pkg ggl90:
348      - in ggl90_cal.F: compute only one set of visc/diff, used to
349        step forward TKE/T/S/momentum
350      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
351        have Prandlt =1)
352    o gmredi (fm07):
353      - add lower limit on Transition layer thickness + lower limit on 1/lambda
354      - allow to set few more params from data.gmredi
355    o pkg ggl90:
356          - add missing sqrt(2) factor in computation of mixing length
357            scale in ggl90_calc.F
358            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
359    
360    checkpoint61d
361    o adjoint modifs
362      - adapt to new field rhoInSitu
363      - allow to revert from StoreDynVars2D, StoreDynVars3D
364        to individual fields
365        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
366    o store 3-D (in-situ) density in commom block (DYNVARS.h)
367     - save 1 rho computation.
368     - no longer modify T & S inland when using down_slope pkg.
369    o gad_som : allow to switch to SOM advection for T & S without corresponding
370      pickup files (using new S/R: MDS_CHECK4FILE).
371    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
372      (for useSingleCpuIO to work in multi-threaded)
373    o pkg/shelfice:
374     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
375       with SHELFICEtopoFile in data.shelfice
376     - move code for reading ice shelf topography and modifying hFacC into separate
377       subroutines of the shelfice package
378     - separate initialisation of "fixed" and "variable" variables
379     - kTopC is not (yet) replaced by kSurfC, although this is possible
380    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
381    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
382      and rename:
383      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
384      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
385    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
386    
387    checkpoint61c
388    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
389      to add mass source/sink of fluid in the interior (3-D generalisation
390      of oceanic real-fresh water flux).
391    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
392    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
393    o new pkg: down_slope
394      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
395      - presently, modify T & S inland (dwnslp_calc_rho.F).
396        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
397      - implementation for ocean in P-coords not tested.
398      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
399    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
400      (to facilitate conversion of oceanic pkg to p-coordinate).
401    o change FIND_RHO to FIND_RHO_2D :
402      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
403    o new pkg: cheapaml
404    
405    checkpoint61b
406    o exch2:
407      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
408      - no longer depend on the order sequence (N,S,E,W).
409      - 3rd exchange no longer needed (tested with 24 tiles).
410      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
411      - exch_UV_A-grid readily available (but not yet tested).
412      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
413      (both are no longer needed) in exch_uv: no effect in forward run; but
414       get truncation error differences with adjoint exch.
415    o exch2:
416     - change index-bounds storage (moved from target to local tile,
417       more intuitive this way) ; rename/remove some variables.
418     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
419    
420    checkpoint61a
421    o exch2/matlab-topology-generator:
422      fix bug in index bounds for N-S internal exchange (hard to tell if this
423      had any effect on the solution).
424    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
425      is exceeded
426    o testreport: modify syntax of awk, so that it works also with
427      awk, and not only with nawk and gawk
428    
429    checkpoint61
430    o autodiff
431      Change default for TAF usage by removing argument '-nonew_arg'
432      This changes TAF subroutine argument list (ordering of active var.)
433      Omission of this flag leads to incompatibility w.r.t. TAMC
434      To restore TAMC-compatibility, need following modifs:
435      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
436      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
437      Tested TAF version is 1.9.22
438      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
439    
440    checkpoint60
441    --->>> This is the last checkpoint for which generating the adjoint
442    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
443    --->>> by default.
444    --->>> Future checkpoints will ommit this flag by default.
445    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
446    o pkg/grdchk: Add gradient check to etan0 perturbations.
447    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
448    o pkg/autodiff: more flexibility in zeroadj.
449      model/src: modifying do_oceanic_phys.F accordingly.
450    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
451    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
452      special setup of gmredi for which the adjoint is stable
453      enough for parameter optimization.
454    o bridging the gap between eddy stress and GM.
455      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
456          along with a change in CPP option (now ALLOW_EDDYPSI).
457      -> when using GM w/ GM_AdvForm:
458          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
459          is applied either in the tracer Eq. or in momentum Eq.
460          depending on data.gmredi (intro. GM_InMomAsStress).
461      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
462      The key modifications are in model/src/taueddy_external_forcing.F
463      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
464    
465    checkpoint59r
466    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
467      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
468      fix option to read coriolis(@ cell-corner) from files with CS-grid.
469    o pkg/mnc: add some attributes to standard 1D-coordinate variables
470    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
471      mass points, when using mnc for output
472      - add runtime parameter (missing_value, missing_value_int) to override
473        default (which is the value of getcon('UNDEF'))
474    o pkg/mnc: prepare mnc for the actual use of missing values with the
475      diagnostics package: small fix in mnc_cw_readwrite.template and more
476      initialisation of never used fields
477      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
478      versions
479    o pkg/thsice/thsice_ini_vars.F added default initial values so that
480      thermodynamics sea ice solver does not blow up when some initial fields
481      are missing.
482    o move from external_forcing_surf.F to ini_forcing.F
483      the p-coord. hack consisting in using pLoad to set phi0surf ;
484      update output of tutorial_global_oce_in_p (affected @ truncation level).
485    o Freshen up a bit hs94.1x64x5, notably:
486      remove rotationPeriod and tRef=5*0. (adjoint only), and add
487      exactConserv=.TRUE.
488    o pkg/generic_advdiff:
489      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
490      applies to files where Temperature & Salinity 2nd Order moments are used.
491    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
492      this uses a dynamically allocated internal state data structure
493      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
494      and requires a fortran 90 compiler
495    
496    checkpoint59q
497    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
498       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
499    o Refresh tutorial_global_oce_biogeo, notably:
500      - change bathymetry (put back seamounts in ACC, use hFacs)
501      - change EOS (POLY3 --> JMD95Z)
502      - use Bryan-Lewis vertical diffusivity
503      - use multidimensional advection
504      - remove old virtual virtual in dic pkg, now done through ptracer pkg
505      - change a couple of parameters in dic pkg
506    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
507    o pkg/obcs: change default to OBCSfixTopo = .true.,
508      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
509      - replace "debugMode" with "debugLevel .GE. debLevB"
510    o implementation of TAF directives for gchem,cfc,dic
511    o remove "exp5" (replaced by tutorial_deep_convection).
512    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
513      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
514      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
515      --> changes results in exp4, seaice_obcs
516    o tutorial_deep_convection :
517      update the set-up and increase resolution and domain size ; start
518      from pseudo initial conditions = output at t=120mn in order to see
519      something happening when running testreport.
520    o pkg/seaice: add os7mp as an advection scheme
521                  add check for advection schemes
522                  add a flag for restoring T and S underneath sea ice
523    o pkg/my82: add netcdf-support and diagnostics
524    o thsice pkg:
525      - Now hsMax limits snow height by turning it into ice following
526        flooding scheme (and now conserving energy)
527      - Slight rewriting of the formula in thsice_calc_thick.F
528      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
529      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
530    
531    checkpoint59p
532    o gchem / dic / cfc :
533      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
534      - add new parameter files: "data.dic" & "data.cfc" ;
535      - various re-arrangement in initialisation & header file ;
536      - fix tutorial_global_oce_biogeo for multi-threaded test.
537    o pkg/dic: test for "pickup_dic" file when restarting ;
538      if no pickup-file, can restart with a re-initialised pH (same as it did
539      before) providing pickupStrictlyMatch is set to False.
540    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
541      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
542    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
543      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
544    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
545     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
546       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
547    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
548       scheme to use for vorticty-term ;
549     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
550       (with default selectVortScheme, return to original discretisation)
551     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
552    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
553    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
554      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
555      also fix diagnostics VISCAHW & VISCA4W.
556    
557    checkpoint59o
558    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
559    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
560      move a few statemens out the main loop into separate loops
561    o pkg/shelfice:
562      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
563        (kg/m^2/s), does not break tests, because in verification/isomip,
564        rhoConstFresh=rhoConst (by accident)
565      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
566      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
567        new file model/src/seawater.F, so that they are available for all pkgs.
568      - convert potential temperature into in-situ temperature. This changes the
569        isomip tests => update tests
570    o add a flag writePickupAtEnd (default=true) to be able to suppress
571      writing a pickup at the last timestep
572    o tools/mpack-1.6 :
573      - disable automake (not working) and autoconf (not needed).
574      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
575        also cleaner with much less compilation warnings.
576    o pkg/profiles:
577      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
578      (for "less than 32 characters name" compiler requirement)
579    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
580      conditions that have a different sampling frequency than S/T/U/V obcs
581    o pkg/diagnostics (stats-diags):
582      - fix global Min/Max in case 1 processor get only empty tiles
583    o genmake2: replace (4 times)
584         make genmake_tc_1.o >> genmake_warnings 2>&1
585      with
586         COMM="$CC $CFLAGS -c genmake_tc_1.c"
587         echo $COMM >> genmake_warnings
588         $COMM >> genmake_warnings 2>&1
589      to make genmake2 always see the value of CC as specified in the optfile.
590    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
591      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
592      - modify verification advect_cs test to test SOM-advection on CS-grid.
593    o pkg/ctrl:
594      - Rewrite of ctrl_map_ini_ecco.F,
595        introducing a generic routine (ctrl_map_ini_gen.F).
596      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
597    
598    checkpoint59n
599    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
600      number in dedicate array "hdiag":
601      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
602        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
603      - many small changes (integer format) for large number of diagnostics
604      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
605        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
606    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
607      usingSphericalGrid, this allows to define the rotated grid coordinates
608      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
609      geographical coordinates according to the inverse of the rotation defined
610      by the Euler angles, so that Coriolis parameter and online-interpolation by
611      exf works with the geographical coordinates on XC/YC/XG/YG.
612      Naturally, this feature does not work with all packages, so some
613      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
614      profiles), because there the coordinates are assumed to be regular
615      spherical grid coordinates.
616    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
617      - introduce isopycnal diffusion coefficient control.
618    o tools/adjoint_options:
619      - additional control vector components.
620    o pkg/mnc: have mnc create marginally meaning full coordinate variables
621      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
622    o pkg/mypackage:
623      - add example of read/write pickup for state-var ;
624      - add entry points to the main code for state-vars diags & write-pickup.
625    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
626      transitions for useExfYearlyFields
627      - add new subroutine that determines the file to read from for
628        use*YearlyFields = .TRUE. and .FALSE.
629      - add a verification experiment to global_with_exf that tests
630        useExfYearlyFields with USE_EXF_INTERPOLATION defined
631    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
632      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
633      subroutines (which could be generated from a template, because they are
634      almost identical), for now they are included in obcs_prescribe_read.F for
635      simplicity
636    o pkg/exf:
637      - add a little more diagnostic to exf_interp_read (in analogy to
638        mds_read_field, can be turned off with debugLevel < debugLevA=1)
639      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
640        ugly but fast by unrolling short inner loops, inserting a unroll=8
641        directive in routine lagran, and splitting a loop and making do while the
642        outermost loop (the latter requires the intoduction of index arrays)
643    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
644    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
645      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
646    o verification/seaice_obcs: updated for restart test and latest options
647    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
648      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
649      for now this is only available for the C-grid code and also within
650      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
651    
652    checkpoint59m
653    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
654      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
655    o gad_som : fix flux output (& diagnostics) to have same units as other  
656      advection scheme fluxes (was previously multiplied by deltaT).  
657    o added verification/seaice_obcs both to test seaice open boundaries
658      and to provide an example matlab scrpt for generating them
659    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
660    o pkg/salt_plume: clean up salt_plume_frac.F to
661      remove redundancy in PlumeMethod 1 and 4
662    o pkg/kpp: added saltplume diagnostics
663    o pkg/obcs and pkg/seaice:
664      - do not set uice and vice to zero when OB*icefile are unspecified
665      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
666      - moved seaice tracer obcs after call to seaice_growth
667    o pkg/salt_plume: added various options for salt plume depth
668      criterion and for vertical distribution of the salt
669    
670    checkpoint59l
671    o pkg/ptracers: new version of ptracers pickup:
672      read meta file and write only fields which are needed to restart.
673      ( same logic as main pickup file ; also using pickupStrictlyMatch )
674    o pkg/seaice:
675      - add timescale for melting due to warm mixed layer as a means of
676        setting SEAICE_availHeatFrac more conveniently
677      - add a CPP-flag/runtime parameter check for flooding algorithm
678      - reformulated availHeat in seaice_growth.F to be independent of AREA
679    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
680      unit changes
681    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
682    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
683      SX vector computer.
684    o pkg/seaice:
685      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
686        seaice forcing fields can now be read only through pkg/exf
687      - removed some unused halos
688    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
689    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
690      or U/VICE from U/VWIND before computing U/VSTRESS
691    
692    checkpoint59k
693    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
694      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
695    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
696      all experiments pass when compile with un-initialised var. checking option.
697    o added pkg/salt_plume
698    o script to test restart (for now, in MITgcm_contrib/jmc_script)
699    o pkg/seaice: new read/write pickup version.
700      read meta file and write only fields which are needed to restart.
701      ( same logic as main pickup file ; also using pickupStrictlyMatch )
702    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
703    o lab_sea.hb87: modify the domain & update output.hb87.txt :
704      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
705      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
706      process. Fixed here by closing the domain at the Northern boundary.
707    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
708    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
709      a set of consecutive levels in/from a 3-D array.
710    o pkg/ptracers:
711      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
712      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
713    
714    checkpoint59j
715    o in pkgs: dic, obcs, offline, rbcs:
716      standard way to compute coeff. for time interpolation between 2 time reccords
717      which retains full precision (& make results less dependent on compiler).
718      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
719    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
720      packages instead of reading ice cover and wind speed separately
721    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
722     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
723      to allow to compile customized code before the update)
724    o cleaning-up:
725      - fix CPP instruction syntax in pkg/obcs
726      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
727        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
728      - fix some threads issue in IO parts.
729    o pkg/dic:
730      - add tons of "_d 0" (--> much better testreports !)
731       and then update outputs of tutorial_global_oce_biogeo
732    o pkg/mom_fluxform:
733      add a special version of momentum advection intended to conserve momentum
734      next to a bathymetry step or a coastline edge. (default = off = #undef)
735    o new read/write pickup version:
736      - for now, only implemented for main (mdsio) pickup file.
737      - write out only what is needed to restart; merge pickup_nh , pickup_ph
738        and main pickup together.
739      - read meta file; read only what is needed to restart; stop if a field
740        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
741        if it make sense (even if the restart is not perfect).
742      - if no meta file, assume that pickup to read corresponds exactly to
743        a pickup that would currently be written.
744      - read pickup written in the old format (until checkpoint59i) if it
745        recognizes an old meta file (no field-list).
746      - add a meta file in exp. which starts from a pickup: 2 cases:
747        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
748         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
749        b) a meta file describing the content of the associated pickup file
750         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
751    o pkg/mdsio & pkg/rw:
752      - new routine to read a meta file ; new set of routine to read
753        Multiple-fields file (with meta file).
754    o added open boundary conditions capability for seaice
755        HSNOW, HSALT, UICE, and VICE
756    
757    checkpoint59i
758    o adjoint:
759      * fix multiDimAdvection adjoint
760        (partial recomputation problem by TAF for fVerT(:,:,kDown)
761        and comlev1 size definition (maxpass vs. max. number of tracers)
762      * verification/global_ocean.90x45x15 adjoint now tests
763        NLFS and multiDimAdvection using DST3 (=30)
764      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
765    o pkg/kpp: add "_d 0" to real constant (if missing);
766      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
767      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
768    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
769      for internal parameters related to restart process (formerly from PARAMS.h)
770      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
771    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
772      as argument. (only atm2d & obcs write_pickup have not yet been updated)
773    o pkg/monitor:
774      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
775      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
776      - account for deep Atmosphere factor and density factor (anelastic)
777    o added open boundary conditions capability for seaice HEFF and AREA
778    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
779      thermodynamics
780      - requires a little reorganization, which affects the testreport results
781        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
782        so that now the conservative form is tested
783      - add a few comments
784    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
785    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
786    o add new diagnostics to seaice: advective, diffusive fluxes (only for
787      multidim-advection, for scheme 2 they are not filled) and transports,
788      thermodynamic growth rates
789    o change units of EmPmR (inside the code, + within coupling interface)
790      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
791      Affects results @ truncation level (cg2d match) and update output of
792       experiments: lab_sea(6), global_ocean.90x40x15(10),
793      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
794      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
795      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
796      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
797    
798    checkpoint59h
799    o pkg/exf:
800      - improve vectorization by moving if-statement out of loops in
801        exf_mapfields, exf_radiation
802      - exf_bulkformulae.F: introduce 2D fields and vectorize code
803    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
804    o testreport:
805      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
806        monitor & update offline_exf_seaice exp. output.
807      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
808    o pkg/seaice:
809      - bug fix in the evp solver: boundary conditions were affected be
810        masking of zMax/zMin (changes results)
811      - minor bug fix in boundary conditions in seaice_calc_strainrates
812        (changes results for no_slip)
813      - seaice_lsr.F: make interpolation of eta dependent on boundaries
814      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
815      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
816        stress formulation and no-slip boundary conditions
817    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
818      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
819    o pkg/seaice: a first HSALT time stepping equation has been checked in
820    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
821      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
822      without requiring DO-IF statements
823    o pkg/thsice:
824      use continuous power-law function for partition of energy between lateral
825      melting/freezing and thinning/thickening ; old code using step function
826      still available with #undef THSICE_FRACEN_POWERLAW
827      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
828    o testreport: change AD testing : check against results/output_adm.txt
829      using same scripts as for forward test.
830    
831    checkpoint59g
832    o adjoint testing: in preparation for changing testreport:
833      - output format: cost and grad written on separated lines
834      - ad output results in directory "results" (instead of "results_ad")
835    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
836    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
837    o pkg/ecco: allow user defined cost function contributions
838    o testreport:
839      Allow to choose (per experiment) the list of tested output variables
840       and the main variable (used to issue a pass/FAIL ) ;
841      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
842      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
843      Also modify printing of summary:
844       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
845       b) echo the list of tested variables in the individual summary.txt of
846          each experiment.
847    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
848      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
849      (but still depend on the tile decompostion of the domain).
850    o pkg/seaice: change a discretization detail to make the B-grid code
851      "more symmetric". This change is likely to remove all "ridges/leads" that
852      where quasi-aligned with the grid in B-grid solutions. It may also be
853      the solution to the stress coupling issues with the B-grid.
854    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
855      remove .cvsignore from input dir. (since testreport no longer run here).
856    o pkg/thsice:
857     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
858     - fix reshaping of sea-ice just after advection:
859       melt all the ice only if ice-volume is too small.
860     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
861       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
862     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
863    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
864      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
865    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
866      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
867      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
868      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
869      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
870      -> update output.txt
871    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
872     this affects truncation error: -> update output.txt of exp:
873      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
874      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
875    
876    checkpoint59f
877    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
878    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
879      a bounded range (in forward mode)
880    o pkg/ecco, ctrl, autodiff and mom_common:
881     internal parameter controls, completements of implementations
882    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
883    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
884      (not seem any difference in testing results).
885    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
886       at face corners.
887    o pkg/generic_advdiff:
888     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
889      loop range indices for computing vertical advection tendency
890      and do the calculation in the interior only (no overlap) ;
891      for now, only implemented for SOM advection (to save CPU time).
892     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
893    o exch2 adjoint
894      First set of changes:
895      - add exch2 hand-written adjoint templates
896      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
897        This will require cleanup in pkg/autodiff/*.F
898        (changed routines currently kept separate in verif. code/)
899      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
900        that used to hide exch2 or cubed-sphere specific code
901        (commented via 'cph-exch2')
902    o pkg/seaice
903      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
904    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
905       output of global_ocean.cs32x15.thsice .
906    
907    checkpoint59e
908    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
909      for B-grid vector (not yet tested) and C-grid vector (<- only used
910      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
911    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
912      (#ifdef ALLOW_SALT_PLUME)
913    o gather_2d/scatter_2d: removed halo regions
914    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
915      scheme and the corresponding test case (under front_relax dir). For now,
916      only available with Skew-flux form and not yet tested in realistic set-up.
917      adjoint: store directives updated, but gradient checks deteriorated,
918      so maybe GM/Redi adjoint is now broken.
919    o seaice adjoint
920      * add AREA, HEFF, HSNOW as control variable
921        (should not change lab_sea results)
922      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
923    o pkg/seaice:
924      * added computation of saltFlux in seaice_growth;
925        For time being, sea ice salinity is assumed constant
926        contribution of snow flooding to freshening of sea ice is neglected.
927        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
928        defaults to 0.0 in order to maintain backward compatibility.
929        Typical values for SEAICE_salinity are 4 to 10 g/kg.
930      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
931      * added SEAICE_availHeatFrac, which specifies fraction of surface level
932        heat content used to melt or grow ice
933      * commented out cap of HICE: it helps keep ice thinner
934      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
935      * applied OBCS T/S mask to HEFFM sea ice mask
936    
937    checkpoint59d
938    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
939     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
940     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
941    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
942     and change default value of parameter "GM_Small_Number";
943     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
944       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
945       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
946    o pkg/ecco: cost function when applying pkg/smooth to controls
947    o pkg/ctrl: add forcingPrecond run time parameter
948    o pkg/seaice:
949     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
950     - fix bug in metric terms of u-equation in LSR solver (implicit part),
951       changes verification/lab_sea
952     - rearrange implicit part of u-equation in LSR solver to make it easier to
953       read, understand, and debug. This causes changes at the truncation level.
954     - fix (serious) bug in the boundary conditions (sign error in the implicit
955       part) of the LSR solver. Changes all LSR results.
956     - fixed problem with HSNOW initialization to avoid thick snow when AREA
957       is initilized with small values - does not change lab_sea results.
958     - added HsnowFile initialization capability
959    o pkg/smooth: addition to model/src and pkg/ctrl so allow
960     initialization of pkg/smooth and application to control vector
961    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
962    o dependencies: pkg/profiles requires pkg/cal
963    o pkg/profiles:
964     - added option ALLOW_PROFILES_GENERICGRID
965         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
966         that interpolation information (grid points and coefficients) is provided
967         within the netcdf input files.
968         -> sample matlab scripts can be found in MITgcm_contrib/gael
969         that allow you to prepare netcdf input files.
970     - also modified: cleaner include statements, cleaner error print statements,
971       cleaner stops when error, and more tests of the netcdf input files consistency.
972    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
973    o pkg/seaice:
974     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
975       requires a new routine: seaice_diagnostics_fill.F
976     - make sure that seaice does not move if not forced (pressure replacement
977       method, Hibler and Ip, 1995), changes results
978     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
979     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
980       It is turned off by default (=-1.), because it changes the results.
981     - make it possible to read AREA from a file, too.
982    
983    checkpoint59c
984    o add S/R and diagnostics for oceanic mixed-layer depth
985    o move GMRedi call after all vertical mixing schemes (including KPP)
986    o pkg/thsice:
987     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
988      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
989    o pkg/obcs:
990     - bug fix for balance code
991    o pkg/seaice:
992      - allow values of SEAICE_elasticParm > 1
993      - add new parameter SEAICE_evpTauRelax as an alternative
994        to SEAICE_elasticParm
995      - make lsr boundary conditions free slip (by default), changes result
996      - add code for no slip boundary conditions for lsr
997      - set minimum of zeta to zero (and not 4e8) (changes results)
998      - add a cap on AREA after advecting AREA if seaice_growth is not called
999    o change calculation of Visbeck K:
1000      - no longer depend on tapering scheme; instead, compute slope (limited
1001        by GM_maxSlope). this is equivalent to what was comuted before with
1002        clipping or linear tappering.
1003      - fix vertical averaging (wrong by 1/2 level)
1004      - leave the old version (but will not be maintained) within
1005        #ifdef OLD_VISBECK_CALC / #endif
1006      - update output of exp. ideal_2D_oce
1007    o change error catch in calc_r_star to improve vectorization
1008    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1009      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1010    o adjoint:
1011      Re-organized adjoint checkpointing according to Matt Mazloff
1012      (but with modifs/completions/cleanups)
1013      Storing is now bundled into large arrays to optimized I/O
1014      (and second step in cleanup of the_main_loop)
1015    
1016    checkpoint59b
1017    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1018      - export/import (between ocean & coupler) fields needed for ocean DIC.
1019    o pkg/seaice:
1020      - get rid of three more exchanges seaice_calc_viscosities (required
1021        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1022      - bug fix in seaice_ocean_stress (update of lab_sea required)
1023      - reduce loop boundaries to necessary minimum also in seaice_evp
1024      - go back to the old way of computing deltaC/Z as the adjoint likes that
1025        better
1026    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1027      passive tracer to an Age Tracer) + update output.txt
1028    o pkg/exf:
1029      - implement A-grid / C-grid selection for wind-stress input files.
1030      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1031      for now, in exf_bulk_largeyeager04.F only :
1032      - change implementation for case where windspeed + 2. components wind-stress
1033        are read-in. AND use rhoConstFresh to convert evap.
1034    o pkg/seaice:
1035      - use correct EXCH_UV for wind-forcing (on A-grid).
1036      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1037        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1038    o pkg/exf:
1039      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1040      EXF_INTERPOLATION:
1041      - merge global_with_exf/code version of exf_interp_read.F
1042        to the main code ;
1043      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1044        reading the file ; Important: This options needs to be defined to recover
1045        previous code.
1046        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1047      - no longer loose real*8 precision along the way when using exf_iprec=64.
1048    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1049      - change discretisation of evp-solver in order to avoid another exchange
1050        (changes lab_sea) and clean up a little
1051      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1052        help the adjoint (this also changes the results slightly)
1053      - add a few "_d 0" where they had been missing in seaice_evp.F
1054      - cleaning up: remove unused seaice_calc_rhs.F
1055    o pkg/exf: some cleaning-up:
1056      - change various "constants" into runtime parameters
1057      - cleaned-up Large&Yeager04 routine which should eventually
1058        replace exf_bulkformulae.F (changed names of S/R and CPP)
1059        and merged various ALLOW_ATM_WIND options
1060     only used with thsice pkg (in thsice_get_exf.F):
1061      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1062        which are used when useStabilityFct_overIce=TRUE (= the default)
1063      - change default values of ice & snow emissivity and scale downward LW
1064        by ice & snow emissivity.
1065    o pkg/thsice:
1066     fix few little problems, in thsice_calc_thickn.F:
1067      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1068      - melt only laterally if hIce < hThinIce (as the comments say)
1069      and in thsice_extend.F:
1070      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1071      - start to form ice as soon as the minimum ice-volume is reachable.
1072     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1073      and cpl_aim+ocn
1074    o pkg/kpp
1075     - move computation of surface related input fields to KPP into a new
1076       subroutine kpp_forcing_surf.F
1077     - remove wrong (within bi,bj loops) EXCH calls.
1078     - little cleaning (add argument myThid in last position, cvs header ...)
1079     - for now, fix conservation problem by exchanging KPPviscAz (may not
1080       be the best fix)
1081    o pkg/seaice
1082     - check for inconsistent evp parameter/cpp-flag combination
1083     - remove leftover errIO flat for obsolete name list error handling
1084    o OpenAD
1085     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1086    
1087    checkpoint59a
1088    o pkg/seaice: some parameter clarifications and a little bit of clean up
1089    o pkg/thsice: rename run-time parameters:
1090       himin       -> hIceMin
1091       himin0      -> hThinIce
1092       hihig       -> hThickIce
1093       i0          -> i0swFrac
1094       transCoef   -> bMeltCoef
1095       frac_energy -> fracMelting
1096      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1097       with default values (for now) that do not change the results.
1098      remove old version of thsice vars advection in pkg/seaice.
1099    o in FFIELDS.h:
1100      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1101      - make pLoad & sIceLoad always available (but still only used if
1102         ATMOSPHERIC_LOADING is #define).
1103    o pkg/kpp: replaced _KPP_RL with _RL
1104    o bug fixes for vertical diffusivity computations when both KPP and
1105        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1106        are no longer updating the vertical diffusivity array
1107        (passed as argument) but are (re-) setting those arrays.
1108    o pkg/seaice: fix bug in evp solver, while doing that
1109      - change (improve?) discretization of stress computations for both
1110        cgrid-lsr and evp solver
1111      - add a new routine to compute strain rates
1112      - the above changes lab_sea results
1113      - add no slip conditions for evp solver (off by default), lsr-version
1114        may follow
1115      - fix exchange for shear at Z-points (does not change lab_sea)
1116      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1117        (to force the user to pick a time step since there is not "safe" way
1118        of choosing it)
1119      - add principal stress diagnostics
1120      - rearrange fields for evp a little to avoid having to call a: too many
1121        exchanges and b: exchanges for stress trensor components which we do
1122        not have.
1123      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1124        of evp, complete rewrite for lsr case (latter is does not yet work
1125        in all cases)
1126    o pkg/kpp: add code to have mixing in shelf ice caverns
1127      - add myThid to all kpp routines (long overdue)
1128    
1129    checkpoint59
1130    o pkg/exf:
1131      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1132        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1133      - move exf header files from lower_case.h to UPPER_CASE.h ;
1134        add missing cvs Header & Name
1135      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1136      - add namelist param. selectStressGridPosition, exf_monFreq
1137      - retire many _CLIM routines, and remove data.exf_clim
1138        + params moved to data.exf
1139        + climsst, climsss now handled by exf_set_gen, i.e.
1140          climss?period=0 refers to constant field,
1141          climss?period=-12 to monthly forcing
1142      - split up namelists in data.exf
1143    o pkg/seaice:
1144      - remove seaice_exch and seaice_exch_uv
1145      - remove superfluous exchange of theta
1146      - add myThid to seaice_budget_ocean/ice
1147      - add new interface for atmospheric wind forcing (C-grid only)
1148        + new routine
1149        + two new field (taux, tauy for stress over ice)
1150        + removed one global field (DAIRN) for C-grid case only
1151    o pkg/thsise
1152      - 2nd set of modifs for thsice adjoint in conjunction with exf
1153    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1154    
1155    checkpoint58y_post
1156    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1157      vertical diffusivity, similar to that in MOM4; turned on using
1158      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1159      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1160    o Added capability for 3D specification of background vertical diffusion
1161      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1162      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1163      "data" file that contains the 3D vertical diffusivity coefficients.
1164    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1165      - add code within pkg thsice to advect & diffuse sea-ice fields
1166      similar to (and will replace) what has been added in  seaice_advdiff.F,
1167      but: - conserving Mass, Heat & Salt.
1168           - better when using non-linear advection scheme (not yet fully tested)
1169           - can also be used in atmospheric set-up (for now, only the diffusion).
1170    
1171    checkpoint58x_post
1172    o IO option for global-file compact format:
1173      - add options when generating topology (utils/exch2/matlab-topology-generator)
1174      - add I/O capability (pkg/mdsio).
1175      - adapt utils/matlab/rdmds.m to read this format.
1176      for now long-line format not yet supported by pkg/mdsio (& exch2).
1177    o shelfice: add a few diagnostics
1178    
1179    checkpoint58w_post
1180    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1181      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1182      (and replace horiVertRatio in NH code).
1183      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1184                         and tutorial_plume_on_slope (sensitive to truncation)
1185    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1186      directly to drive seaice model (C-grid only)
1187    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1188     - reintroduce computation of wind from stress,
1189     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1190       mass points to avoid tau = 0
1191     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1192    o rdmnc.m: make it work with "global" files created with gluemnc
1193    o rdmnc.m : some improvements in dealing with singleton dimension
1194      (tested on all testreport mnc output files).
1195    o genmake2: disable pkg/profiles if netcdf test fails.
1196    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1197    o move call to cal_readparms up to make calendar parameters/variable available
1198      to all packages
1199    
1200    checkpoint58v_post
1201    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1202      useDynP_inEos_Zc tested.
1203    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1204    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1205      and portions thereof.  See read_cs.txt for description and examples.
1206    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1207      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1208      following the great-circle arc between those 2 points.
1209    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1210      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1211    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1212     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1213     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1214     - still needs work (not working with some options ; efficiency to improve)
1215       and serious testing.
1216     - use this scheme for temperature & salinity in 2 advection test exp.:
1217       advect_xy & advect_xz, respectively.
1218    
1219    checkpoint58u_post
1220    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1221    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1222    o testreport: add option "-skipdir" to skip some test.
1223    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1224      momentum calculation.
1225    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1226    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1227      remove checkpoint.F and the_correction_step.F (no longer used);
1228      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1229    o add option (linFSConserveTr) to correct for tracer source/sink due to
1230      Linear Free surface
1231    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1232    o pkg/thsice: fix reading mnc-pickups
1233    
1234    checkpoint58t_post
1235    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1236    o pkg/mdsio:
1237     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1238       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1239       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1240     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1241     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1242       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1243     - new S/R (to replace MDSWRITEMETA), which allows to write more
1244       informations (variable names, time ...) to meta files.
1245     - modify rdmds.m to give back the meta file content.
1246    o pkg/diagnostics: change vertical interpolation to be safer, and more
1247       flexible (define p-levels to interpolate to in data.diagnostics);
1248      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1249       diagnostic pointer.
1250    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1251    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1252    o fix multi-category seaice:
1253     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1254       SEAICE_MULTICATEGORY
1255     - fix short wave heat flux
1256    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1257       and allow to use EVP solver. Change forward lab_sea: test both EVP
1258       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1259    o Initial check-in of lab_sea adjoint
1260      (very similar to natl_box_adjoint/code_seaice)
1261      * used C-grid and EVP solver
1262      * used KPP, GM/Redi
1263      * uses inAdExact=.TRUE.
1264      * gradient checks fail for both ADM and TLM
1265        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1266        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1267        issue is related to forward mismatch between g77 an ifort
1268    o pkg/seaice: overhaul of thermodynamics
1269     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1270     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1271     - move a few global fields out of SEAICE.h into seaice_growth.F and
1272       make them 2D (FICE/QNETO/ ...)
1273     - remove FO (it is the same as QNETO)
1274     - introduce a few local fields to avoid modifying external fields such
1275       as atemp, etc.
1276    
1277    checkpoint58s_post
1278    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1279      changed exf_set_gen.F so that
1280        genperiod=0 means input file is one time-constant field and
1281        genperiod=-12 means input file contains 12 monthly means
1282    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1283      this affects truncation error ; generate new output file for exp. which
1284      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1285        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1286        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1287        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1288        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1289        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1290    o start implementation of deep-atmosphere and anelastic formulation
1291    o verification: remove 2nd copy of input files and use script "prepare_run"
1292      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1293    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1294    o profiles: fix for multithreaded case
1295    
1296    o diagnostics: rename few diags:
1297      s/'PRESSURE'/'RCENTER '/g
1298      s/'TICE    '/'oceFreez'/g
1299      s/'TAUX    '/'oceTAUX '/g
1300      s/'TAUY    '/'oceTAUY '/g
1301      s/'SWFLUX  '/'oceQsw  '/g
1302      s/DIFx/DFxE/g
1303      s/DIFy/DFyE/g
1304      and add few ocean-forcing diagnostics:
1305      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1306    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1307      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1308      as actual snow thickness.  It now refers everywhere to effective snow
1309      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1310    
1311    checkpoint58r_post
1312    o modifications to pkg/seaice/growth.F, which change results of
1313      lab_sea experiment: fixes pertain to melting snow over open water, to
1314      masking EVAP under sea ice, and to using the correct AREA variable for
1315      computations of EVAP, PRECIP, HSNOW, and GHEFF
1316    o add ability to read bathy, salt, and theta using MNC (off by def)
1317    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1318      both are turned off by default and do no change any results
1319    o seaice advection with pkg/thsice: a step toward the use of non-linear
1320      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1321    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1322      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1323      in natl_box (affects results @ truncation level: update output.txt)
1324    o multi-threading and IO:
1325      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1326      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1327        (needed to work with SingleCpuIO): tested in all verif. exp.
1328    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1329      affects the results (but none of the verification test uses this scheme).
1330    o Adding some pkg/diagnostics capability to pkg/seaice
1331      (will certainly be subject to changes)
1332    o ctrl: adding new control variables:
1333      lwflux, lwdown, evap, snowprecip, apressure, runoff
1334    
1335    checkpoint58q_post
1336    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1337      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1338      high_res_cube configuration by 4% on Columbia.
1339    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1340      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1341      dynamical allocation (seems to work in multi-threaded).
1342    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1343      single CPU io) so that TAF does not have to see EESUPPORT.h
1344    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1345    
1346    checkpoint58p_post
1347    o obcs: stop if obcs is used with useCDscheme = .true.
1348    o shelfice:
1349     - fix a sign error so that no slip at shelfice interface works
1350     - remove stop for combination non-hydrostatic code and shelfice. That does
1351       not mean, that the results are correct, but at least they are numerically
1352       stable
1353    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1354    o added adjoint exch routined for all exch*3d* routines
1355      and updated flow directives
1356    
1357    checkpoint58o_post
1358    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1359      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1360    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1361      and clean-up reading/writing of pickup files.
1362    o fix local version of read/write pickup (NH part) in rotating_tank/code
1363    o simplify EXCH interface:
1364     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1365     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1366    o added the regrid package
1367    o shelfice:
1368     - add a simple boundary layer scheme to reduce noise
1369     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1370    
1371    checkpoint58n_post
1372    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1373       local variable (not in common block).
1374    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1375      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1376      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1377        to work with SingleCpuIO.
1378    o add "_d 0" to real constant of pkg/cfc subroutines ;
1379       update exp. cfc_exemple & tutorial_cfc_offline output files.
1380    o multi-threading and IO:
1381      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1382        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1383      - barrier before and after reading.
1384      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1385      - avoid using MDS_WRITELOCAL for LAND pkg output.
1386      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1387        common-block variables ; Allows multi-threading with master-thread IO.
1388    o change default MAX_NO_THREADS from 32 to 4 ;
1389      and stop cleanly when MAX_NO_THREADS is too small.
1390    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1391    
1392    checkpoint58m_post
1393    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1394       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1395    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1396       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1397       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1398    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1399        add MITgcm_tutorials (= code + all the tutorials)
1400    o ecco, option to compute cost for total ssh (mean+anom)
1401    o consistent with addition of ptracer and ssh in pkg/profiles
1402    o profiles: adding ptracer and ssh
1403    o testreport: change multi-test output-file name
1404      (from output.txt.{name} to output.{name}.txt)
1405    o profiles: now ok for mutli-tiles case
1406    o seaice: add 4 parameters for different advection schemes for area,
1407      (effective) seaice thickness, enthalphy, and snow height. Their default
1408      is the standard parameter SEAICEadvScheme
1409    o calc_gw:
1410     - add cosFacU in zonal viscous flux (harmonic.visc.).
1411     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1412       of tutorial_plume_on_slope.
1413    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1414    o calc_gw: true flux-form, account for horizontal grid spacing.
1415      update rotating_tank results, but not plume_on_slope (affected at
1416      truncation level, 11 digits).
1417    
1418    checkpoint58l_post
1419    o calc_gw:
1420     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1421     - remove side-drag for now (need to fix it); update plume_on_slope results.
1422     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1423    o commit code to make SST/SSS weights spatially variable
1424      (based on either variable in-situ or variable initial T/S weights)
1425    o pkg/ecco:
1426      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1427        now based on horizontally varying weights wthetaLev, wsaltLev
1428      * cost_averagesflags now returns year indices in addition to day, month
1429      * sflux balance is performed on annual basis
1430        (sflxumm, sfluxmm2, bal_sfluxmm)
1431      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1432        including separate counting and multipliers
1433    o pkg/rbcs
1434      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1435    
1436    checkpoint58k_post
1437    o testreport:
1438     - always build in dir. "build" (if not there, mkdir build instead of building
1439       & running in input)
1440     - run in dir run (if it exists), in build otherwise.
1441     - call prepare_run (if input/prepare_run exists)
1442     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1443    o pkg/exf modifications to interpolation and rotation routines for more
1444       reasonable treatment of North Pole singularity: for tracers North Pole
1445       value is set to northernmost zonal-mean value, for zonal velocity it is
1446       set to zero, and for meridional velocity it is set to northernmost value.
1447    o pkg/exf/exf_check_range.F
1448     - add tile index to diagnostics and move stop statement to the very
1449       end of the routine.
1450    o pkg/diagnostics: (diagnostics_main_init.F)
1451      define title of isomorphic variables according to the current config.
1452    o pkg/thsice with pkg/seaice dynamics:
1453    - fix domain of computation (interior only, required for exf) and do exchanges
1454    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1455    o towards a standard way of dealing with multi-threading in MONITOR
1456      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1457    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1458       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1459    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1460    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1461    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1462       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1463    o tracer advection:
1464     - clean-up and simplify calc_common_factors.F
1465     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1466       advection subroutine (but still not used within DST advection S/R)
1467    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1468    
1469    checkpoint58j_post
1470    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1471      from file (collects calls previously in FORWARD_STEP)
1472    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1473    o adjoint store dir. adjusted accordingly
1474    o genmake2
1475      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1476    
1477    checkpoint58i_post
1478    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1479      on wind stress (SEAICEstressFactor defaults to 1.)
1480    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1481      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1482    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1483      on CS-grid: no longer loosing mass.
1484    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1485    o pkg/ggl90: fix sloppy output and fix a bug
1486    o pkg/seaice: added SEAICEuseEVPpickup parameter
1487      - Set to false in order to start EVP solver with
1488        non-EVP pickup files when using SEAICEuseEVP
1489      - fix sign error in diffusion in seaice_calc_rhs
1490    
1491    checkpoint58h_post
1492    * Modifications for bottom topography control
1493      o replace hFacC by _hFacC at various places
1494      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1495      o add non-self-adjoint cg2d_nsa
1496      o update autodiff support routines
1497      o re-initialise hfac after ctrl_depth_ini
1498      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1499    * Adding verification for 5x5 box (4-layer) bottom topography control
1500    
1501    checkpoint58g_post
1502    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1503       used for mean seasonal cycle, mean diurnal cycle); add an example
1504       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1505    o pkg/ggl90:
1506      - add parameter (minimum surface kinetic energy)
1507      - fix bug (avoiding division by zero)
1508    o couple pkg/thsice to pkg/seaice:
1509      - modify advection in seaice to accomodate new scalar fields to be advected
1510      - only muliDimAdection scheme work with seaice/thsice
1511      - mapping of thsice-variables to seaice-variables, back and forth
1512      - does not break the verification experiments, but does not give the
1513        desired results either
1514    o pkg/seaice
1515      - make (default) second order advection a bit less confusing?
1516    
1517    checkpoint58f_post
1518    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1519      to pkg/seaice):
1520      - new routines thsice_map_exf and thsice_get_exf provide the interface
1521      - add an additional formal parameter to thsice_solve4temp
1522    o pkg/exf:
1523      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1524      - correct Stefan-Boltzmann constant
1525      - new parameter for longwave surface emittance
1526      - separate some stuff from exf_bulkformulae into new routines  
1527        exf_radiation, exf_wind
1528      - add new parameters and constants: longwave emissivity for ocean, ice
1529        and snow, evaporation parameters over ice
1530      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1531        either wind from stress or stress from wind
1532    o pkg/thSIce:
1533    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1534    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1535       and THSICE_CALC_THICKN
1536    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1537    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1538      to make debugging easier.
1539    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1540    o pkg/bulk_force:
1541      - clean-up comments and parameters ;
1542      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1543    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1544      generate new output for test-experiment: aim.5l_cs.thSI
1545    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1546      testreport accordingly
1547    
1548    checkpoint58e_post
1549    o SEAICE_CGRID adjoint done
1550    o R_STAR adjoint implemented.
1551      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1552      * need to sort out init. of h0facc, etc.
1553    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1554      to be able to use it in pure forward.
1555    
1556    checkpoint58d_post
1557    o upgrade simple test-experiment to tutorial example:
1558     step.1: duplicate the experiment and (step.2) will remove the old copy.
1559      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1560      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1561      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1562      tutorial_global_oce_biogeo    <- copy of dic_example
1563      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1564      tutorial_plume_on_slope       <- copy of plume_on_slope
1565      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1566      tutorial_global_oce_optim     <- empty for now (David ?)
1567      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1568     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1569    o correct a sign problem in cost_scat.F
1570    o obcs and ptracers: fix boundary conditions for advections schemes
1571      with larger stencil
1572    o thsice adjoint: start
1573    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1574      completeness
1575    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1576      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1577    o ptracers adjoint:
1578      * avoid extensive recomputatations
1579      * fix missing re-init. of gptr (missed by TAF)
1580    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1581      me to turn off the excessive output to STDOUT that this package produces
1582    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1583      and add those terms in Vector-Invariant formulation.
1584    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1585      if the control period (xx_hfluxperiod etc) is 0
1586    o in profiles pkg, clean routines and fix details
1587    o in ecco pkg, reading ssh data:
1588      fix problem in case the model does not start at iter0=0
1589    o fix mnc-pickup/restart for ptracers
1590    o new package prifiles:
1591      code to compute profile-based cost by Gael Forget
1592      (modifs in ecco, ctrl, autodiff)
1593    o Benign bug fix in initialization (spotted by M. Mazloff) of
1594      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1595    
1596    checkpoint58c_post
1597    o adjoint: finish NLFS adjoint and provide reference output in
1598      verification/global_ocean.90x40x15/results_ad_nlfs
1599    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1600      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1601      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1602      with SEAICE_CGRID defined.
1603    o move calendarDumps from "data" to "data.cal" and clean-up the code
1604      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1605    o add useEXF & useCAL flags (for now, set in hard-coded way)
1606    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1607      (were missing in NH mode, and wrong in quasihydrostatic mode).
1608      waiting for Chris updated version of calc_gw to add those CALLs.
1609    o fix bug in quasihydrostatic S/R ;
1610      add a test for this option: global_ocean.90x40x15.qshyd
1611    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1612      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1613    o add on/off flag useOffLine for package OFFLINE
1614    o seaice:
1615      - modify advection so that it works also on the C-grid
1616      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1617        problem in multi-tile runs with C-grid
1618      - add flags for clipping ice velocities and/or masking solver forcing
1619      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1620        C-grid solver
1621      - added a few comments to seaice_diffusion.F
1622      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1623        are now exclusive)
1624      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1625        required re-ordering the code a little:
1626       + make DAIRN global variable (defined in SEAICE)
1627       + move computation of the viscosities eta and zeta into a new separate
1628         routine (because I need to recompute them in seaice_ocean_stress.F)
1629    
1630    checkpoint58b_post
1631    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1632      update output.txt of exp. aim.5l_cs.thSI
1633    o various mnc cleanups and improvements:
1634      + shrink lookup tables by factor of ~4
1635      + better error reporting when running out of lookup space
1636      + able to handle longer path/file names (up to 500 chars)
1637    o adjoint:
1638      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1639      - TBD: "hidden" mom_vecinv recomp. in dynamics
1640    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1641     (allow to differentiate between forcing components using new integer flags:
1642      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1643     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1644    o ecco
1645      - enable trend removal from SSH anomaly obs.
1646    o adjoint
1647      - a fix for PmEpR when #undef EXACT_CONSERV
1648      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1649      - try to fix "hidden" recomp. in forward_step for NLFS
1650        (NLFS seems broken sometimes after I checked it in)
1651    o seaice:
1652     - add c-grid version of the dynamic solver:
1653       + three new routines that are the c-grid substitute lsr, dynsolver
1654         and ostres
1655       + put a few fields that were local to dynsolver into global common
1656         blocks, so that I can move the computation of stresses etc into
1657         seaice_lsr (saves coding but may break the adjoint).
1658     - replace more hardwired parameters by runtime parameters
1659     - add ice masks that mask the rhs of the implicit solvers where there
1660       is no ice (commented out in seaice_dynsolver, because i am not sure
1661       if this works properly), eventually this should replace the clipping
1662       of ice velocities in seaice_dynsolver to +/-40cm/s.
1663    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1664      include it only where its needed
1665    o move balancing of fluxes before the call of external_forcing_surf
1666    o seaice:
1667      - correct units of turning angles (now they are really in degrees)
1668      - move computation of GWATX/Y out of main routine into dynsolver
1669      - initialize GWATX/Y in seaice_init
1670    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1671      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1672    o seaice: add runtime flags for turning angles (default to zero)
1673    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1674      and trend from exf forcing and ctrl control adjustments
1675    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1676      (since checkpoint57x_post)
1677    o change the default rotation period to 86164.s = the Earth rotation
1678    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1679      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1680    o seaice advection: add code for choosing between the default (2nd order
1681      central differences) and multiDim advection schemes provided by
1682      pkg/generic_advdiff
1683    o seaice:
1684      - removed all references to SEAICE_GRID.h fields from
1685        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1686        (cubed-sphere configuration will change a little)
1687      - grid computations in seaice_init are obsolete now.
1688      - cleaned up code a little so that is easier to read (hopefully).
1689      - added new (better?) discretizations of default advection and diffusion
1690        (turn on with SEAICEuseFluxForm)
1691      - replace 1 in 3d global fields by kSurface in growth.F
1692      
1693    checkpoint58a_post
1694    o seaice:
1695      - bug fix in advect.F
1696    o shelfice:
1697      - separate shelfice load anomaly from pload (breaks with time
1698        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1699        Its default is 0., but it may be computed more cleverly from (unknown)
1700        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1701        done offline. A good approximation of the pressure load anomaly is
1702        necessary to avoid large initial adjustment processes underneath
1703        deep-reaching shelfice.
1704      - small fix in ISOMIP shelfice_thermodynamics
1705      - add more sophisticated thermodynamics of Hellmer (1989), this is
1706        now the default
1707      - give a few constants more intuitive names
1708    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1709      if bulk formulae are used in long integration (especially EmPmR). Turn
1710      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1711      if balancePrintMean, the imbalance that is substracted is printed to
1712      STDOUT.
1713    o fix bug (typo) in obcs_apply_eta.F
1714    o add a new package shelfice which enables us to model the circulation
1715      underneath shelf-ice with draughts of hundreds of meters.
1716     - works
1717     - to do: + include improved thermodynamics
1718              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1719                instead of new field kTopC
1720              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1721                instead of new field R_shelfIce and new code in ini_depth.F
1722                and ini_mask_etc.F?
1723              + adjust vertical mixing schemes?
1724    o seaice pkg:
1725     - add a cpp-flag to include a simple formula for a salinity dependent
1726       freezing point of sea water at the surface
1727     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1728       meridional stresses are now different (and hopefully correct)
1729    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1730       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1731       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1732    o pkg/diagnostics: add options and parameters for regional-statistics
1733       diagnostics ; define regions by reading a region-mask from a file
1734       (might add other options later)
1735    o pkg/bulk_force:
1736     - add option and parameters to use AIM surface-flux formulae.
1737     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1738       others forcing fields (defined in PARM05, parameter file "data") are loaded
1739       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1740     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1741     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1742     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1743       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1744     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1745    
1746    checkpoint58
1747    o add "--embed-source" option to genmake2 which, when the supporting
1748      tools can be compiled (as determined by genmake2) will turn on the
1749      embed_files package which then embeds the entire MITgcm source code
1750      (*.[fFhc] + Makefile) used for the build within the executable
1751      - requested by CNH but off by default
1752      - adds a paltry <9MB to the mitgcmuv executable in most cases
1753      - only writes the output when useEMBEDSRC in eedata is true
1754    o clean up 3-dim. relaxation codes:
1755      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1756      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1757      * Thanks to Tom Haine for testing!
1758    
1759    checkpoint57z_post
1760    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1761      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1762    o fix the pickup behavior for obcs in combination with ptracers
1763    o fix a bug in ptracers_external_fields_load
1764    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1765      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1766    o transfered surface NH pressure to eta field (if exactConserv).
1767    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1768         and update lab_sea output.txt file.
1769    o completing 3-dim. relaxation code: additional term
1770         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1771      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1772      * At compile time, in "EXF_OPTIONS.h" set
1773          #define  ALLOW_CLIMTEMP_RELAXATION
1774          #define  ALLOW_CLIMSALT_RELAXATION
1775      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1776          tauThetaClimRelax3Dim = 15552000.0,
1777          tauSaltClimRelax3Dim  = 15552000.0,
1778      * 3 cases:
1779          1) Use a constant-in-time 3-dim. field
1780          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1781          3) Real-time relax. to time-evolving prescribed field
1782    o Adding Laplacian-type smoothness constraint on
1783      initial and boundary (forcing) controls (ic, bc)
1784      * enable at compile-time via
1785        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1786      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1787      * Absolute scale somewhat unclear so far
1788      * no area weighting was included since no other cost term does so far
1789    
1790    checkpoint57y_post
1791    First step for a NLFS adjoint
1792    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1793    o new init. routines for calc_r_star, calc_surf_dr
1794    o still need to deal with ini_masks_etc
1795    o testreport seemed happy
1796    checkpoint57y_pre
1797    
1798    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1799    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1800    o add new offset feature to offline pkg (plus minor cleanup)
1801    o cfc fixes for final year of integration
1802    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1803      be in GCHEM_OPTIONS).
1804    
1805    checkpoint57x_post
1806    o fix testreport Pb in multiple test experiment.
1807    o cleanup our namelist syntax in verification:
1808      - make it more F95 standards compliant (some work still needed)
1809      - allows the vast majority of our tests to work with gfortran
1810    o Non-Hydrostatic:
1811     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1812     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1813    o Allow to apply AB on T,S rather than on AB(gT,gS):
1814     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1815     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1816       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1817     - need a "clever" read_pickup to restart from the other AB formulation
1818    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1819    o remove some unused variables (reduces number of compiler warnings)
1820    o adjoint
1821      * Disable useVariableViscosity for adjoint for time being
1822        (there are a number of extensive recomputations)
1823      * Initialize certain variables needed for adjoint
1824    
1825    checkpoint57w_post
1826    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1827                 fix the singleCpuIO RS version of MDSWRITEFIELD
1828       and add a WARNING if using globalFiles=T with multi-processors.
1829    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1830      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1831    o tracer advection scheme:
1832      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1833       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1834       was not very convenient).
1835      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1836       (further tests needed for the implicit DST & Flux-Limiter schemes).
1837    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1838      and sRef for convenience, handy, when you want to initialize
1839      ptracers in a large domain with a constant non-zero value. Also,
1840      untangle ptracers_init.F a little.
1841    
1842    checkpoint57v_post
1843    o change dome exp. to use variable viscosity in side-drag terms.
1844    o remove all the files from the cfc_offline test since they are now
1845      incorporated into tutorial_cfc_offline which has been producing
1846      identical results for a few days of testing
1847    o add new parameter: sideDragFactor to enable half-slip-side BC
1848      and change side-drag S/R to use viscosity from mom_calc_visc
1849      (can switch back by setting sideDragFactor=0.); affects results at
1850      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1851       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1852    o vorticity & strain are now computed without masking, to account for
1853      no-slip-side BC in variable viscosity calculation ; mask is applied
1854      anyway later on, before computing advection/coriolis terms.
1855    o modify exp4 to test new obcs support for reading from external files
1856      and for passive tracers
1857    o fix behavior of ptracers_monitor when monitor output is written to a
1858      netcdf-file; still not independent of monitor.F (writes in the same
1859      file).
1860    o change default value of tRef (put a uniform, meaningful value for ocean
1861      & atmos) and initialize sRef (was missing, as Martin mentioned).
1862    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1863      to be proportional to enstrophy dissipation length.  Thus,
1864       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1865      This is now consistent with Smagorinsky and with the manual.
1866    
1867    checkpoint57u_post
1868    o OBCS and PTRACERS: add open boundary support for passive tracers
1869      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1870        OB-values from file; this is not different from the way theta and salinity
1871        are treated
1872      - however, Orlanski-radiation conditions are not supported, and the model
1873        will stop if you use pTracers and Orlanski at the same time.
1874      - beefed up the rountine obcs_external_fields_load: now only those open
1875        boundary values are overwritten with values from files for which there
1876        are really files, otherwise the OB-fields remain untouched. This makes
1877        it possible to use different OBs at different ends of the domain (as
1878        with EXF)
1879    o reduce number of exch calls in shap_filt (s2).
1880    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1881      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1882    
1883    checkpoint57t_post
1884    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1885    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1886      same truncation, independent of the face number: affects affects several
1887      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1888    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1889      note that biharmonic viscosity + no-slip was not tested in any experiment.
1890    o fix bug in non-linear free-surf side-drag ; generate new output for
1891      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1892    o make mnc honor the writeBinaryPrec flag for most kinds of output
1893    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1894    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1895      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1896    o add brackets in multi-terms sum to get same truncation, independent of
1897      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1898      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1899    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1900      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1901      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1902      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1903      Suggested values of viscosity parameters found in mom_calc_visc.
1904      Many new viscosity diagnostics available.
1905    
1906    checkpoint57s_post
1907    o Add clearing-house for viscosity calculations, mom_calc_visc and
1908      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1909      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1910      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1911      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1912      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1913      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1914      ViscAhStrain and viscAhTension are now retired.
1915    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1916    o In response to JMC's bug report, genmake2 now ignores any soft-links
1917      that it finds in the *current* directory when searching for files.
1918      Soft-links found in any other source directories will still work as
1919      they did before.
1920    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1921      a C routine to unlimit the stack size
1922    o mnc-ify pkg/aim snapshot vars
1923    o mnc-ify pkg/land as requested by Daniel
1924    o various changes to mnc including:
1925      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1926      - output can now be grouped so that all files within a group
1927          change the ITER portion of their names in lock-step together
1928      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1929          and works with both EXCH1 and EXCH2 (but needs more testing)
1930      - writing works for all verification test cases w/ g77 on Linux
1931    
1932    checkpoint57r_post
1933    o make MNC variable initialization happen earlier
1934    o add diagnostics for (almost) each term of the momentum Eq.
1935    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1936    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1937    o remove MINIMAL_TAVE_OUTPUT option ;
1938      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1939    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1940      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1941    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1942    o add time-dependent SST, SSS control
1943    o cost terms in ecco/ modularized (new cost_generic.F)
1944    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1945    o new infrastructure for seaice model vs. obs misfits in seaice/
1946      * driver from the_main_loop.F is seaice_cost_driver.F
1947      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1948      * gradient check in Exp. 6a of natl_box_adjoint/
1949    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1950      (see README file)
1951    
1952    checkpoint57q_post
1953    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1954    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1955      - bug was reported by Jean-Michel and Ian Fenty
1956    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1957      update exp. cpl_aim+ocn output.
1958    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1959      Needed for high-res. runs with large global files
1960      to be able to limit tapelev size
1961    o Changed some tests for adjoint:
1962      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1963      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1964      * global_ocean.90x40x15/ back to default 3-level checkpointing
1965    o Modifications to enable scripted COMMON to MODULE conversion
1966      * verification/OpenAD/code/ has necessary scripts and description;
1967      * converts, compiles and runs successfully;
1968    
1969    checkpoint57p_post
1970    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1971    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1972      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1973    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1974    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1975      (was already the case for dissipation with mom_vecinv,
1976       and also the case for grad.PhiHyd when staggered-timeStep)
1977      This will allow to put dissipation out-off the AB time-stepping.
1978     Unfortunately, affects truncation error. Update output of exp. that "fails"
1979      (cg2d matching number) and leave the others for later: front_relax(10),
1980      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1981      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1982    
1983    checkpoint57o_post
1984    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1985      (2) its ready to be documented during the 20050801 DocFest
1986    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1987      for ideal_2D_oce and lab_sea on linux_ia32_g77
1988    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1989      in global1x1_tot/code_seaice_adj to access indices 32, 33
1990      (worth another tag)
1991    
1992    checkpoint57n_post
1993    o adding precip control xx_precip 32
1994    o adding swflux control xx_swflux 33
1995    o Replacing 10 forcing penalty cost routines by 1 generic.
1996    o Implementing partitioning in time-mean and variable adjustment
1997      for atmos. state.
1998    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1999    o in natl_box_adjoint:
2000      * updated exp 1 to 10
2001        (but does not have time-mean vs. variable split results yet)
2002    o updated global1x1/*_seaice_adj/
2003      to incorporate latest changes
2004    o enable useSingleCpuIO for mdsio vector routines
2005      (applies in particular to tapelev I/O)
2006    o removed inefficient K-loop in all active_file*control*.F
2007    
2008    checkpoint57m_post
2009    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2010      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2011    o pkg/exch2: filling of face-corner halo regions is optional
2012      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2013    
2014    checkpoint57l_post
2015     tag before updating tutorials (pre-release-2)
2016    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2017       for output and interpolation of input fields onto model grid)
2018    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2019       Affects results of exp. rotating_tank ; update output.txt.
2020    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2021          and taking the square quantity and/or using a fraction-weight field.
2022    o fix aim_diagnostics_init.F mate numbers.
2023    o add mnc output capability to diagnostics/diagstat and update
2024      our cvsignore files for the ACSII output generated
2025    
2026    checkpoint57k_post
2027    o lab_sea now uses diagnostics package and provides a suite of
2028      new EXF diagnostics output.
2029    
2030    checkpoint57j_post
2031    o exf
2032      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2033        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2034        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2035      * extended diagnostics output
2036        - now includes all EXF variables
2037        - hs, hl moved to common block
2038        - separate S/R for diagnostics, called after ctrl vector is added
2039        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2040        - EXFqnet contains true Qnet (i.e. includes qsw)
2041      * updated verif. lab_sea, global_with_exf
2042      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2043        to ensure that diagnostics sees a true EXFqnet
2044    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2045    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2046      several times with different frequencies.
2047    o mnc-ify the thsice package as requested by Daniel Enderton
2048      - the monitor--MNC output needs work
2049      - many attributes need to be added (most are currently blank)
2050    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2051      - many attributes need to be added (most are currently blank)
2052    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2053    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2054    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2055      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2056         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2057    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2058     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2059    
2060    checkpoint57i_post
2061    o Diagnostics package was changed: diagnostic allocation is now deactivated
2062      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2063    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2064      add 1rst Order upwind vertical Shear.
2065    o add a quick fix for A/B checkpointing in OFFLINE mode
2066    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2067      end-run around the C/Fortran linking horror in eesup/src/timers.F
2068    o added pkg/runclock: allows user to terminate run based on wall clock
2069    o added non-hydrostatic scaling parameter: nh_am2
2070    o pkg/my82: futile attempt to make results compiler-independent by adding
2071      some "_d 0", etc. no effect.
2072    o for mnc output, fill the 'T' coordinate var with myTime and create a
2073      separate 'iter' variable for iteration count
2074    o pkg/diagnostics:
2075      add new capability: output of Global/Regional & per-level statistics ;
2076      tested against monitor output (including land & thSIce) on various exp.
2077    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2078    
2079    checkpoint57h_done
2080      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2081      data.diagnostics, data.gchem, data.ptracers) is done.
2082    
2083    o pkg/diagnostics: prepare for Global/Regional statistics.
2084      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2085    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2086      and rename it: DIFFERENT_MULTIPLE
2087    
2088    checkpoint57h_post
2089    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2090    o pkg/diagnostics: change output frequency, now in seconds (instead
2091      of Nb of iterations). This requires to change data.diagnostics.
2092    checkpoint57h_pre
2093    
2094    o in mnc, let the user create the output dir if both mnc_outdir_date
2095      and mnc_outdir_num are false
2096    o add fflags() to pkg/diagnostics which allows one to specify, on a
2097      per-file basis, the file precision [default behavior is unchanged]
2098    o added diagnostics to pkg/kpp, including computation of mixed layer
2099      depth based on a temperature/density criterion
2100    o updated verification/natl_box to test the new pkg/kpp diagnostics
2101    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2102    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2103    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2104      not mnc -- this mistake was found by JMC and is now corrected
2105    
2106    checkpoint57g_post
2107    o add Adams-Bashforth 3rd Order time stepping:
2108      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2109      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2110    checkpoint57g_pre
2111    
2112    o make lambda[Theta,Salt]ClimRelax spatially varying
2113      (default remains spatially uniform constant based on tau)
2114    o added new control variables
2115      * init. uVel, vVel, etanN
2116      * lambda[Theta,Salt]ClimRelax
2117    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2118      (suggested by G. Forget)
2119    
2120    checkpoint57f_post
2121    o add parameter "baseTime" = model base time = time at iteration zero
2122      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2123      account for baseTime shift
2124    o move Coriolis arrays from PARAMS.h to GRID.h
2125    checkpoint57f_pre
2126    
2127    o mnc-ifying the seaice package
2128    o introduced an alternative length scale calculation for use in the limiting
2129      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2130    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2131    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2132      as well as grad(vort3).  Made it compatible with both approximate form
2133      for the cubed sphere and full form of these gradients.  Added flag
2134      useFullLeith to select between approximate and full form.  
2135    o add "d0" in getcon.F to reduce differences between compilers/platforms
2136      update output.txt of exp. fizhi-gridalt-hs
2137    o change port_rand funtion to allow to set the seed.
2138    o fix obscure MNC bug involving conversion between reals and integers
2139      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2140        new version is now more standards-compliant
2141    o adjoint-related modifications
2142      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2143      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2144      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2145    
2146    checkpoint57e_post
2147    o Adding eddy stress controls a la Ferreira et al.
2148    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2149    
2150    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2151      update output.txt of exp. fizhi-gridalt-hs
2152    o add more "Z" dimensions and associated coordinate vars to MNC
2153    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2154    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2155      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2156      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2157      months and years.  Requires pkg/cal.
2158    o diagnostics: add pickup functionality
2159      - off by default for backwards compatibility
2160      - current version only uses MDSIO -- MNC will be added
2161    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2162    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2163    
2164    checkpoint57d_post
2165    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2166    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2167      output from the diagnostics package
2168    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2169    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2170      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2171    o add coordinate variables to the MNC output from the diagnostics package
2172    o change MNC-flags default value: true when useMNC=TRUE
2173    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2174      the ability (off by default) to read the grid information using MNC
2175    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2176    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2177    o do snap-shot diagnostics at the middle of the time-interval (instead of
2178      at the end).
2179    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2180      new test for AIM with thSIce + slab-ocean
2181    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2182    o move state variable diagnostics to the beginning of the time step ;
2183      (note: still needs some work specially for snap-shot diagnostics)
2184      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2185    
2186    checkpoint57c_post
2187    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2188    o generate new output.txt files on faulks with g77 & the new -ieee option
2189    checkpoint57c_pre
2190    
2191    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2192      update output.txt of exp. global_ocean.90x40x15
2193    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2194      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2195    o add saltFlux(+File) forcing capability with periodicExternalForcing
2196    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2197    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2198    o improvements for the MNC output from DIAGNOSTICS:
2199      - correct handling of the unlimitied dimension
2200      - all dims now have associated coordinate variables
2201      - variables located at U, V, and Corner ("Z") points are now written
2202        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2203        *all* data points are output
2204    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2205    o added pkg/seaice/seaice_monitor.F
2206    o mdsio_readfield.F can now read files visible only to master MPI process.
2207    o pkg/seaice: some test code for ice-modified ocean stress
2208    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2209      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2210      spurious negative numbers for precipitation and humidity.  Will cause
2211      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2212    o pkg/ctrl/
2213      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2214        May be enabled via doPackDiag
2215      *  introduce z-scaling of
2216         + gradient (doZscalePack) and
2217         + control (doZscaleUnpack)
2218    o pkg/mdsio/
2219      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2220      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2221    
2222    checkpoint57b_post
2223    o simplify options in diagnostics_fill arguments (remove weird combinations)
2224    o fix MNC coordinate variables so that they now contain per-face index
2225      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2226      general, EXCH2 grids are only aligned to a "local" coordinate system
2227    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2228    o Implement instantaneous output within pkg diagnostics:
2229      setting a negative frequency in data.diagnostics produces
2230     "snap-shot" output (as opposed to time-average if freq > 0)
2231    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2232      NOTE: change ptracer diagnostics name: use 2 characters to work with
2233            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2234    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2235      becomes the coordinate variable for the 'T' dimension
2236    o add CF-style coordinate variables to MNC
2237      - just a first cut:  numbers are meaningless on the cubesphere and
2238        missing along the T axis but otherwise it works!
2239    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2240    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2241    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2242      this is based directly on what the model compute, so that the content of
2243      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2244    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2245    o clean up build options files for SunOS, in particular
2246      - remove -traditional from xmakedepend
2247      - change -xarch=v9 to -xarch=native for f77
2248      - restore use of make (not gmake)
2249      - add CC=gcc if using g77
2250    o changes per discussion of AM, JMC, & EH3 today:
2251      - move redundant "grid" variables out of "state" -- in preparation of
2252        creating proper CF-style coordinate variables and in recognition
2253        that any/all grid variables can be easily copied (eg. w/NCO) from
2254        the grid files into any of the other NetCDF files
2255      - *always* output grid variables with MDSIO (this will eventually be
2256        changed)
2257      - output MNC grid file if useMNC is true
2258    o every instance of _END_MASTER() has been found and replaced with
2259      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2260      preprocessors
2261    o re-arrange diagnostics pkg initialisation:
2262     - allow each package to extend the available diagnostics list
2263     - add some checking and fix small problems (multi-threaded, ...)
2264     - new S/R diagnostics_fill (replace fill_diagnostics):
2265       look through the short list of active diag. (instead of the long list)
2266       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2267    
2268    checkpoint57a_post
2269    o this set of changes restores TAMC compatibility
2270      tested for global_ocean.90x40x15 adjoint on trough
2271      (what a pain)
2272    
2273    checkpoint57a_pre
2274    o some modifs in tools/build_options for sunos
2275    o call ctrl_pack for ctrl at end for optimcycle=0
2276    
2277    checkpoint57
2278    o add horizontal bi-harmonic viscosity for vertical velocity
2279      - new parameter viscA4W (defaults to viscA4)
2280      - affects only non-hydrostatic code
2281      - to be done: no-slip lateral boundary conditions
2282    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2283    o implement Implicit Vertical advection for pTracers
2284    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2285      (implemented also for implicit vertical diffusion & advection)
2286    o OBCS: extend application of tracer open boundary conditions
2287      to a strip beyond the boundary of width Olx/Oly
2288    o add call monitor to TAF set of required calls (flow directives)
2289      and include in natl_box_adjoint
2290    o untangle a few ifdefs related to cost, ctrl, autodiff
2291      untangel a few ALLOW_ECCO_OPTIMIZATION
2292    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2293      (theta2, salt2 in ecco_cost_weights)
2294    
2295    checkpoint56c_post
2296    o OBCS as control variables
2297      - update ctrl_ad_diff.list, obcs_ad_diff.list
2298      - remove balance of obcs controls from default
2299      - fix index bug nobcs in ctrl_init
2300      - fix dummy fields filen in ctrl_pack
2301      - add dummy weights for obcs
2302    o lsopt: comment out fort.94 output
2303    o optim:
2304      - remove unnecessary header files
2305      - adjusted namelists
2306      - add xerbla.F to Makefile
2307    o exf:
2308      - multiple modifications of exf_check_range
2309      - unit change in exf_init_runoff from [m/year] to [m/s]
2310    o mdsio:
2311      - i/o-vector change debugLevel from debLevA to debLevB
2312    
2313    checkpoint56b_post
2314    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2315      is called from DO_THE_MODEL_IO
2316      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2317      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2318      - clean up PTRACERS_WRITE_TIMEAVE a little
2319    o add another verification experiment that tests both the cfc-pkg and
2320      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2321      reactive tendencies treated inline with regular timestepping
2322    o testreport previously did a lousy job of comparing small numbers, so
2323      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2324      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2325      testreport.
2326    o ptracers_monitor: bug fix for MPI
2327    
2328    checkpoint56a_post
2329    o GCHEM: finish reorganizating the package
2330      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2331        (introduces another 3D-array for each passive tracer, but only if
2332        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2333        gchemTendency is not needed because the timestep is done separately)
2334      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2335      - GCHEM is now---more or less cleanly---separate from PTRACERS
2336      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2337        so clear to me how that should be done in a general way.
2338    o CFC: improve formatting of output in CFC_ATMOS
2339    o PTRACERS:
2340      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2341        that ALL experiments with ptracers enable can be checked. This makes
2342        GCHEM_MONITOR obsolete.
2343      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2344        monitorFreq
2345      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2346    o add PTRACERS (PTR0[1-5]) to testreport output
2347    o exf_check_range:
2348      * default changed to .TRUE.
2349      * will check values for niter0 if debLevA, every timestep if debLevB
2350      * STOP in exf_check_range if 'out of range'
2351      * range chosen generous to allow for potential extema
2352      TBD: a version with stricter range
2353           permitted range would be runtime parameters
2354  o GMredi:  o GMredi:
2355    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2356    - 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 2359  o GCHEM:
2359    - 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
2360      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2361    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2362      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2363        this flag is now only visible within GCHEM-pkg routines.
2364      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2365        be replaced by a 3D array that is computed before thermodynamics; for
2366        this, the tracer ID iTracer had to be included into the parameter list
2367        of ptracers_forcing
2368      - set up forward_step to call gchem_forcing, that will replace
2369        gchem_forcing_int in ptracers_forcing
2370      - cleaning up
2371  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
2372    
2373  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2586  o add two new packages
2586    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2587    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2588      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2589      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2590  o add offline package  o add offline package
2591  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2592    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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