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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1110 by mlosch, Fri May 29 10:44:50 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/seaice:
8      - fix diagnostics for flux of ice in case of B-grid
9      - turn strain rates eij and press into global fields within global
10        common block in SEAICE.h for more straighforward diagnostics
11      - fix diagnostics for principal stress components, press, zeta, eta
12        to give something meaning full
13    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
14      new output (all 4 tests) using default rotationPeriod.
15    o Fix computations of L4rdt in mom_calc_visc.F
16    o eesupp:
17      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
18      should be called before a "stop" if we know that all process are going
19      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
20    
21    checkpoint61o
22    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
23    o model/src/ini_curvilinear_grid.F:
24       compute angleSin/CosC when they are not read from a file
25    o pkg/seaice:
26       add pseudo time stepping for LSOR
27    o pkg/exch2:
28       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
29    o pkg/seaice:
30       Adding separate sea ice albedo, drag coefficients, and HO in Southern
31       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
32    o SingleCpuIO:
33       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
34    o pkg/seaice:
35       put exchanged variable in (local) common block for MPI+Multi-Threads
36       to work (necessary with exch1, and for now with exch2 too).
37    o verification: to get more experiments tested with mpi, mth and mpi+mth,
38      change tiling of:
39       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
40       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
41      update output of exp:
42       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
43       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
44      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
45                       (note: output.txt generated on faulks using only 1 tile)
46    o eesupp & mdsio (SingleCpuIO):
47     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
48       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
49       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
50     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
51     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
52       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
53    o pkg/exch2:
54     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
55       read parameter file "data.exch2" if it exists; otherwise try default regular
56       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
57     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
58       with new code (not to be used, just as a backup solution).
59     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
60       in utils/exch2/input.
61    
62    checkpoint61n
63    o eesupp & mdsio (SingleCpuIO):
64      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
65        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
66        receive real*4 array (instead of real*8) to read/write 32.bit files.
67        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
68         and remove new mapping S/R)
69    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
70      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
71        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
72        when using exch2. Add S/R to map global io-buffer to global model array.
73      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
74    
75    checkpoint61m
76    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
77      and add 3 other S/R for other types (R4,R8,RS).
78      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
79    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
80     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
81     - reduce number of macro definitions (keep only those which are used);
82       can always call directly the corrresponding S/R if needed.
83     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
84       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
85     Fixed wrong type of arg in:
86       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
87       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
88     To fix: global_sum of var in common block is wrong (multi-threaded) in:
89       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
90     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
91    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
92      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
93    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
94    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
95      edges are closed (zero depth); might happen with "blank tiles";
96      for now, disabled if using OBCS.
97    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
98      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
99    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
100      to reduce length of 1.D array print in STDOUT.
101    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
102      + use 48 tiles (16x8): this will allow to test "blank tiles".
103    o start to test MPI + multi-threaded (change testreport to skip tests
104      where number of tiles do not match).
105    o genmake2: add option "-omp" to turn on Open-MP ;
106      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
107    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
108      and keep the original tile numbering. Note: compatible with old
109      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
110    
111    checkpoint61l
112    o Overlaps had been forgotten in calculating ijk keys : fixed
113    o fix cyrus makedepend for gcc 4.4
114    o experiment fizhi-cs-aqualev20:
115      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
116      and generate new output. Note: new output is much closer to the old
117      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
118      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
119    o pkg/fizhi:
120     - change to avoid indices going deliberately over array-bounds
121     - remove unnecessary MPI stuff
122     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
123     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
124       does not go over array-bounds and therefore returns reliable output.
125     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
126       this S/R has 4 output arguments, which are used inside "get_alarm";
127       when it is called with the same variable "ndum" in place of several
128       output arguments, this produces weird side effect inside "get_alarm"
129      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
130       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
131       address) and produces error.
132    o tools/gemake2: (March 27-29 2009)
133      with option "-mpi": link *_mpi files from "MODS" dir (this is what
134      testreport does).
135    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
136    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
137       update lab_sea.lsr & lab_sea.salt_plume results
138    o pkg/seaice:
139      Major overhaul of the LSOR solver: change discretization from original
140      finite differences to finite volume. The old routine is still in the
141      file seaice_lsr.F and can be turned on with the CPP-flag
142      SEAICE_OLD_AND_BAD_DISCRETIZATION
143      Along with this change, the discretization of the strain rates is changed.
144      The same flag turns on the old discretization in seaice_calc_strainrates.F
145      All verification experiments with seaice are affected (except for
146      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
147      results by setting the above flag.
148      Further changes involve changes in defaults:
149      - ALLOW_FLOODING is defined and turned on by default
150      - SEAICEadvSnow = .true. is now the default
151      - SEAICEadvSalt = .true. is now the default
152      - SEAICEadvAge  = .true. is now the default
153      - SEAICE_clipVelocities  = .false. is now the default
154                                         (as per J. Zhang's recommendation)
155      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
156        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
157      - seaice_growth: replace computation of UG by a simple copy from wspeed
158    
159    checkpoint61k
160    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
161      seaice_lsr: fixed a few metric terms,
162                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
163                  add more debugging diagnostics
164      seaice_evp: removed superfluous many metric terms of FV discretization
165                  of stress divergence
166                  affects lab_sea, lab_sea.hb87
167      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
168                  of stress divergence for non-evp solver
169                  (this part is not tested anywhere)
170      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
171                  they were effectively only half slip
172                  affects lab_sea.hb87
173      updated all relevant verification experiments (except lab_sea//output_adm.txt
174        which was left over, but fails at level 7 & 6)
175    
176    checkpoint61j
177    o pkg/seaice: turn a few hard wired parameters into run time parameters
178    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
179      time in seconds as promised by the usints in seaice_monitor and exf_monitor
180    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
181      that are not cubed-sphere grids
182    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
183    o pkg/ctrl:
184      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
185    o non-hydrostatic (calc_gw.F):
186      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
187      update output of exp. global_ocean.cs32x15.viscA4
188    o remove backward compatibility for thetaMin,phiMin
189      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
190    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
191      interpolated wind field not only for curvilineargrid=.true., but also
192      for a rotated grid (rotateGrid=.true.)
193    o pkg/exf: add capability to bypass interpolation for runoff
194      by setting yet another CPP-flag
195    o eesupp/src, B-grid exchange:
196      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
197    o autodiff
198      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
199      allows to switch to single-prec common blocks;
200      corresponding switch occurs in tamc.h, integer isbyte
201      TAF store directivs "byte" and "kind" seem equivalent;
202      Most tamc.h have been updated correspondingly.
203    
204    checkpoint61i
205    o autodiff:
206      fix autodiff_sore/_restore indices for obcs
207      (spotted by I. Hoteit, M. Mazloff)
208    o pkg/autodiff, pkg/ctrl:
209      Add flag to reduce all tapelev I/O to single-prec.
210      In data.ctrl set
211        doSinglePrecTapelev = .TRUE.
212    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
213      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
214    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
215      real fresh water flux (not yet)
216    o pkg/mdsio & rw:
217     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
218     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
219    o pkg/flt:
220     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
221       init_fixed & ini_varia.
222     - clean-up & simplify linear interpolation S/R:
223       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
224     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
225     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
226     - add vert. coordinate & horiz. indices to output files.
227     - change vertical position in initial condition, from index to depth [m].
228     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
229       (easier to get to a curvilinear grid) ; delX,delY no longer used.
230    o pkg/ggl90: a few modifications:
231     - fix bottom boundary condition, and interpolation of KappaE
232       near top and bottom
233     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
234     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
235     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
236    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
237      (maintain temporary backward compatibility, until next checkpoint)
238    
239    checkpoint61h
240    o pkg/diagnostics with "periodic averaging diagnostics":
241      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
242    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
243    o pkg/obcs: fix loop ranges for balancing code
244    o pkg/flt:
245     - improve criteria for finding which tile owns a float.
246     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
247    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
248      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
249      with ocean biogeo)
250    o pkg/flt:
251     - do some cleaning and fix the restart ;
252     - add output.txt in flt_example/results to get this pkg tested.
253    o genmake2: add an EXTENDED_SRC option and flag.
254       for now, cannot be turned on on command line (only through genmake_local)
255    o pkg/mdsio: read/write vector:
256     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
257     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
258       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
259     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
260      (drop to 4 digits matching for grad). But this test does not look very
261      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
262    
263    checkpoint61g
264    o pkg/flt:
265      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
266       + make OPTIONS file more standard.
267      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
268      - fix _BYTESWAPIO CPP-Flag
269      - standard reading of file-parameter "data.flt"
270      - fix argument list of S/R FLT_RESTART
271      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
272    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
273    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
274      a still unfixed compiler/optimization bug
275    
276    checkpoint61f
277    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
278      update results of global_ocean.cs32x15.icedyn test.
279    o move getcon.F from model/src to pkg/fizhi.
280    o pkg/exf: add parameter for extrapolation of temp up to the surface
281       and option to prevent negative evap (in bulk_largeyeager04 only).
282    o Prather Advection scheme: fix tracer conservation for divergent flow
283      (e.g., when using NonLin Free-Surface).
284    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
285    o gmredi (Visbeck-variable-K):
286     - add more parameters to Visbeck-variable-K.
287     - use a 5 points average for dSigmaR in Visbeck-K calculation
288       (more "homogenous": same stencil and same weights as in dSigmaH)
289     - update output of ideal_2D_oce experiment.
290    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
291      (#undef REAL4_IS_SLOW)
292     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
293       coordinate variable
294     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
295       (surface forcing fields), removes some of the functionality
296     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
297     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
298       probably not all: copy _RS surface flux fields to RL field before
299       calling DIAGNOSTICS_FILL
300     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
301       real*4 (CALL EXCH_*_RS) versions.
302     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
303       (generate new output).
304    
305    checkpoint61e
306    o gmredi (Visbeck-variable-K):
307      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
308      - change computation of Visbeck-K where Slope > Smax :        
309        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
310        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
311    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
312      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
313    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
314    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
315      does not become too large (to avoid precision problems in implicit-diffusion
316      solver); update ideal_2D_oce output.
317    o pkg ggl90:
318      - in ggl90_cal.F: compute only one set of visc/diff, used to
319        step forward TKE/T/S/momentum
320      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
321        have Prandlt =1)
322    o gmredi (fm07):
323      - add lower limit on Transition layer thickness + lower limit on 1/lambda
324      - allow to set few more params from data.gmredi
325    o pkg ggl90:
326          - add missing sqrt(2) factor in computation of mixing length
327            scale in ggl90_calc.F
328            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
329    
330    checkpoint61d
331    o adjoint modifs
332      - adapt to new field rhoInSitu
333      - allow to revert from StoreDynVars2D, StoreDynVars3D
334        to individual fields
335        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
336    o store 3-D (in-situ) density in commom block (DYNVARS.h)
337     - save 1 rho computation.
338     - no longer modify T & S inland when using down_slope pkg.
339    o gad_som : allow to switch to SOM advection for T & S without corresponding
340      pickup files (using new S/R: MDS_CHECK4FILE).
341    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
342      (for useSingleCpuIO to work in multi-threaded)
343    o pkg/shelfice:
344     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
345       with SHELFICEtopoFile in data.shelfice
346     - move code for reading ice shelf topography and modifying hFacC into separate
347       subroutines of the shelfice package
348     - separate initialisation of "fixed" and "variable" variables
349     - kTopC is not (yet) replaced by kSurfC, although this is possible
350    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
351    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
352      and rename:
353      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
354      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
355    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
356    
357    checkpoint61c
358    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
359      to add mass source/sink of fluid in the interior (3-D generalisation
360      of oceanic real-fresh water flux).
361    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
362    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
363    o new pkg: down_slope
364      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
365      - presently, modify T & S inland (dwnslp_calc_rho.F).
366        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
367      - implementation for ocean in P-coords not tested.
368      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
369    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
370      (to facilitate conversion of oceanic pkg to p-coordinate).
371    o change FIND_RHO to FIND_RHO_2D :
372      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
373    o new pkg: cheapaml
374    
375    checkpoint61b
376    o exch2:
377      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
378      - no longer depend on the order sequence (N,S,E,W).
379      - 3rd exchange no longer needed (tested with 24 tiles).
380      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
381      - exch_UV_A-grid readily available (but not yet tested).
382      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
383      (both are no longer needed) in exch_uv: no effect in forward run; but
384       get truncation error differences with adjoint exch.
385    o exch2:
386     - change index-bounds storage (moved from target to local tile,
387       more intuitive this way) ; rename/remove some variables.
388     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
389    
390    checkpoint61a
391    o exch2/matlab-topology-generator:
392      fix bug in index bounds for N-S internal exchange (hard to tell if this
393      had any effect on the solution).
394    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
395      is exceeded
396    o testreport: modify syntax of awk, so that it works also with
397      awk, and not only with nawk and gawk
398    
399    checkpoint61
400    o autodiff
401      Change default for TAF usage by removing argument '-nonew_arg'
402      This changes TAF subroutine argument list (ordering of active var.)
403      Omission of this flag leads to incompatibility w.r.t. TAMC
404      To restore TAMC-compatibility, need following modifs:
405      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
406      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
407      Tested TAF version is 1.9.22
408      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
409    
410    checkpoint60
411    --->>> This is the last checkpoint for which generating the adjoint
412    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
413    --->>> by default.
414    --->>> Future checkpoints will ommit this flag by default.
415    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
416    o pkg/grdchk: Add gradient check to etan0 perturbations.
417    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
418    o pkg/autodiff: more flexibility in zeroadj.
419      model/src: modifying do_oceanic_phys.F accordingly.
420    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
421    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
422      special setup of gmredi for which the adjoint is stable
423      enough for parameter optimization.
424    o bridging the gap between eddy stress and GM.
425      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
426          along with a change in CPP option (now ALLOW_EDDYPSI).
427      -> when using GM w/ GM_AdvForm:
428          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
429          is applied either in the tracer Eq. or in momentum Eq.
430          depending on data.gmredi (intro. GM_InMomAsStress).
431      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
432      The key modifications are in model/src/taueddy_external_forcing.F
433      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
434    
435    checkpoint59r
436    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
437      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
438      fix option to read coriolis(@ cell-corner) from files with CS-grid.
439    o pkg/mnc: add some attributes to standard 1D-coordinate variables
440    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
441      mass points, when using mnc for output
442      - add runtime parameter (missing_value, missing_value_int) to override
443        default (which is the value of getcon('UNDEF'))
444    o pkg/mnc: prepare mnc for the actual use of missing values with the
445      diagnostics package: small fix in mnc_cw_readwrite.template and more
446      initialisation of never used fields
447      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
448      versions
449    o pkg/thsice/thsice_ini_vars.F added default initial values so that
450      thermodynamics sea ice solver does not blow up when some initial fields
451      are missing.
452    o move from external_forcing_surf.F to ini_forcing.F
453      the p-coord. hack consisting in using pLoad to set phi0surf ;
454      update output of tutorial_global_oce_in_p (affected @ truncation level).
455    o Freshen up a bit hs94.1x64x5, notably:
456      remove rotationPeriod and tRef=5*0. (adjoint only), and add
457      exactConserv=.TRUE.
458    o pkg/generic_advdiff:
459      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
460      applies to files where Temperature & Salinity 2nd Order moments are used.
461    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
462      this uses a dynamically allocated internal state data structure
463      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
464      and requires a fortran 90 compiler
465    
466    checkpoint59q
467    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
468       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
469    o Refresh tutorial_global_oce_biogeo, notably:
470      - change bathymetry (put back seamounts in ACC, use hFacs)
471      - change EOS (POLY3 --> JMD95Z)
472      - use Bryan-Lewis vertical diffusivity
473      - use multidimensional advection
474      - remove old virtual virtual in dic pkg, now done through ptracer pkg
475      - change a couple of parameters in dic pkg
476    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
477    o pkg/obcs: change default to OBCSfixTopo = .true.,
478      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
479      - replace "debugMode" with "debugLevel .GE. debLevB"
480    o implementation of TAF directives for gchem,cfc,dic
481    o remove "exp5" (replaced by tutorial_deep_convection).
482    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
483      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
484      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
485      --> changes results in exp4, seaice_obcs
486    o tutorial_deep_convection :
487      update the set-up and increase resolution and domain size ; start
488      from pseudo initial conditions = output at t=120mn in order to see
489      something happening when running testreport.
490    o pkg/seaice: add os7mp as an advection scheme
491                  add check for advection schemes
492                  add a flag for restoring T and S underneath sea ice
493    o pkg/my82: add netcdf-support and diagnostics
494    o thsice pkg:
495      - Now hsMax limits snow height by turning it into ice following
496        flooding scheme (and now conserving energy)
497      - Slight rewriting of the formula in thsice_calc_thick.F
498      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
499      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
500    
501    checkpoint59p
502    o gchem / dic / cfc :
503      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
504      - add new parameter files: "data.dic" & "data.cfc" ;
505      - various re-arrangement in initialisation & header file ;
506      - fix tutorial_global_oce_biogeo for multi-threaded test.
507    o pkg/dic: test for "pickup_dic" file when restarting ;
508      if no pickup-file, can restart with a re-initialised pH (same as it did
509      before) providing pickupStrictlyMatch is set to False.
510    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
511      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
512    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
513      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
514    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
515     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
516       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
517    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
518       scheme to use for vorticty-term ;
519     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
520       (with default selectVortScheme, return to original discretisation)
521     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
522    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
523    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
524      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
525      also fix diagnostics VISCAHW & VISCA4W.
526    
527    checkpoint59o
528    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
529    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
530      move a few statemens out the main loop into separate loops
531    o pkg/shelfice:
532      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
533        (kg/m^2/s), does not break tests, because in verification/isomip,
534        rhoConstFresh=rhoConst (by accident)
535      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
536      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
537        new file model/src/seawater.F, so that they are available for all pkgs.
538      - convert potential temperature into in-situ temperature. This changes the
539        isomip tests => update tests
540    o add a flag writePickupAtEnd (default=true) to be able to suppress
541      writing a pickup at the last timestep
542    o tools/mpack-1.6 :
543      - disable automake (not working) and autoconf (not needed).
544      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
545        also cleaner with much less compilation warnings.
546    o pkg/profiles:
547      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
548      (for "less than 32 characters name" compiler requirement)
549    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
550      conditions that have a different sampling frequency than S/T/U/V obcs
551    o pkg/diagnostics (stats-diags):
552      - fix global Min/Max in case 1 processor get only empty tiles
553    o genmake2: replace (4 times)
554         make genmake_tc_1.o >> genmake_warnings 2>&1
555      with
556         COMM="$CC $CFLAGS -c genmake_tc_1.c"
557         echo $COMM >> genmake_warnings
558         $COMM >> genmake_warnings 2>&1
559      to make genmake2 always see the value of CC as specified in the optfile.
560    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
561      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
562      - modify verification advect_cs test to test SOM-advection on CS-grid.
563    o pkg/ctrl:
564      - Rewrite of ctrl_map_ini_ecco.F,
565        introducing a generic routine (ctrl_map_ini_gen.F).
566      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
567    
568    checkpoint59n
569    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
570      number in dedicate array "hdiag":
571      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
572        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
573      - many small changes (integer format) for large number of diagnostics
574      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
575        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
576    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
577      usingSphericalGrid, this allows to define the rotated grid coordinates
578      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
579      geographical coordinates according to the inverse of the rotation defined
580      by the Euler angles, so that Coriolis parameter and online-interpolation by
581      exf works with the geographical coordinates on XC/YC/XG/YG.
582      Naturally, this feature does not work with all packages, so some
583      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
584      profiles), because there the coordinates are assumed to be regular
585      spherical grid coordinates.
586    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
587      - introduce isopycnal diffusion coefficient control.
588    o tools/adjoint_options:
589      - additional control vector components.
590    o pkg/mnc: have mnc create marginally meaning full coordinate variables
591      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
592    o pkg/mypackage:
593      - add example of read/write pickup for state-var ;
594      - add entry points to the main code for state-vars diags & write-pickup.
595    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
596      transitions for useExfYearlyFields
597      - add new subroutine that determines the file to read from for
598        use*YearlyFields = .TRUE. and .FALSE.
599      - add a verification experiment to global_with_exf that tests
600        useExfYearlyFields with USE_EXF_INTERPOLATION defined
601    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
602      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
603      subroutines (which could be generated from a template, because they are
604      almost identical), for now they are included in obcs_prescribe_read.F for
605      simplicity
606    o pkg/exf:
607      - add a little more diagnostic to exf_interp_read (in analogy to
608        mds_read_field, can be turned off with debugLevel < debugLevA=1)
609      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
610        ugly but fast by unrolling short inner loops, inserting a unroll=8
611        directive in routine lagran, and splitting a loop and making do while the
612        outermost loop (the latter requires the intoduction of index arrays)
613    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
614    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
615      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
616    o verification/seaice_obcs: updated for restart test and latest options
617    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
618      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
619      for now this is only available for the C-grid code and also within
620      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
621    
622    checkpoint59m
623    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
624      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
625    o gad_som : fix flux output (& diagnostics) to have same units as other  
626      advection scheme fluxes (was previously multiplied by deltaT).  
627    o added verification/seaice_obcs both to test seaice open boundaries
628      and to provide an example matlab scrpt for generating them
629    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
630    o pkg/salt_plume: clean up salt_plume_frac.F to
631      remove redundancy in PlumeMethod 1 and 4
632    o pkg/kpp: added saltplume diagnostics
633    o pkg/obcs and pkg/seaice:
634      - do not set uice and vice to zero when OB*icefile are unspecified
635      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
636      - moved seaice tracer obcs after call to seaice_growth
637    o pkg/salt_plume: added various options for salt plume depth
638      criterion and for vertical distribution of the salt
639    
640    checkpoint59l
641    o pkg/ptracers: new version of ptracers pickup:
642      read meta file and write only fields which are needed to restart.
643      ( same logic as main pickup file ; also using pickupStrictlyMatch )
644    o pkg/seaice:
645      - add timescale for melting due to warm mixed layer as a means of
646        setting SEAICE_availHeatFrac more conveniently
647      - add a CPP-flag/runtime parameter check for flooding algorithm
648      - reformulated availHeat in seaice_growth.F to be independent of AREA
649    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
650      unit changes
651    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
652    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
653      SX vector computer.
654    o pkg/seaice:
655      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
656        seaice forcing fields can now be read only through pkg/exf
657      - removed some unused halos
658    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
659    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
660      or U/VICE from U/VWIND before computing U/VSTRESS
661    
662    checkpoint59k
663    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
664      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
665    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
666      all experiments pass when compile with un-initialised var. checking option.
667    o added pkg/salt_plume
668    o script to test restart (for now, in MITgcm_contrib/jmc_script)
669    o pkg/seaice: new read/write pickup version.
670      read meta file and write only fields which are needed to restart.
671      ( same logic as main pickup file ; also using pickupStrictlyMatch )
672    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
673    o lab_sea.hb87: modify the domain & update output.hb87.txt :
674      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
675      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
676      process. Fixed here by closing the domain at the Northern boundary.
677    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
678    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
679      a set of consecutive levels in/from a 3-D array.
680    o pkg/ptracers:
681      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
682      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
683    
684    checkpoint59j
685    o in pkgs: dic, obcs, offline, rbcs:
686      standard way to compute coeff. for time interpolation between 2 time reccords
687      which retains full precision (& make results less dependent on compiler).
688      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
689    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
690      packages instead of reading ice cover and wind speed separately
691    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
692     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
693      to allow to compile customized code before the update)
694    o cleaning-up:
695      - fix CPP instruction syntax in pkg/obcs
696      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
697        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
698      - fix some threads issue in IO parts.
699    o pkg/dic:
700      - add tons of "_d 0" (--> much better testreports !)
701       and then update outputs of tutorial_global_oce_biogeo
702    o pkg/mom_fluxform:
703      add a special version of momentum advection intended to conserve momentum
704      next to a bathymetry step or a coastline edge. (default = off = #undef)
705    o new read/write pickup version:
706      - for now, only implemented for main (mdsio) pickup file.
707      - write out only what is needed to restart; merge pickup_nh , pickup_ph
708        and main pickup together.
709      - read meta file; read only what is needed to restart; stop if a field
710        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
711        if it make sense (even if the restart is not perfect).
712      - if no meta file, assume that pickup to read corresponds exactly to
713        a pickup that would currently be written.
714      - read pickup written in the old format (until checkpoint59i) if it
715        recognizes an old meta file (no field-list).
716      - add a meta file in exp. which starts from a pickup: 2 cases:
717        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
718         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
719        b) a meta file describing the content of the associated pickup file
720         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
721    o pkg/mdsio & pkg/rw:
722      - new routine to read a meta file ; new set of routine to read
723        Multiple-fields file (with meta file).
724    o added open boundary conditions capability for seaice
725        HSNOW, HSALT, UICE, and VICE
726    
727    checkpoint59i
728    o adjoint:
729      * fix multiDimAdvection adjoint
730        (partial recomputation problem by TAF for fVerT(:,:,kDown)
731        and comlev1 size definition (maxpass vs. max. number of tracers)
732      * verification/global_ocean.90x45x15 adjoint now tests
733        NLFS and multiDimAdvection using DST3 (=30)
734      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
735    o pkg/kpp: add "_d 0" to real constant (if missing);
736      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
737      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
738    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
739      for internal parameters related to restart process (formerly from PARAMS.h)
740      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
741    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
742      as argument. (only atm2d & obcs write_pickup have not yet been updated)
743    o pkg/monitor:
744      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
745      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
746      - account for deep Atmosphere factor and density factor (anelastic)
747    o added open boundary conditions capability for seaice HEFF and AREA
748    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
749      thermodynamics
750      - requires a little reorganization, which affects the testreport results
751        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
752        so that now the conservative form is tested
753      - add a few comments
754    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
755    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
756    o add new diagnostics to seaice: advective, diffusive fluxes (only for
757      multidim-advection, for scheme 2 they are not filled) and transports,
758      thermodynamic growth rates
759    o change units of EmPmR (inside the code, + within coupling interface)
760      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
761      Affects results @ truncation level (cg2d match) and update output of
762       experiments: lab_sea(6), global_ocean.90x40x15(10),
763      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
764      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
765      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
766      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
767    
768    checkpoint59h
769    o pkg/exf:
770      - improve vectorization by moving if-statement out of loops in
771        exf_mapfields, exf_radiation
772      - exf_bulkformulae.F: introduce 2D fields and vectorize code
773    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
774    o testreport:
775      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
776        monitor & update offline_exf_seaice exp. output.
777      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
778    o pkg/seaice:
779      - bug fix in the evp solver: boundary conditions were affected be
780        masking of zMax/zMin (changes results)
781      - minor bug fix in boundary conditions in seaice_calc_strainrates
782        (changes results for no_slip)
783      - seaice_lsr.F: make interpolation of eta dependent on boundaries
784      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
785      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
786        stress formulation and no-slip boundary conditions
787    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
788      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
789    o pkg/seaice: a first HSALT time stepping equation has been checked in
790    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
791      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
792      without requiring DO-IF statements
793    o pkg/thsice:
794      use continuous power-law function for partition of energy between lateral
795      melting/freezing and thinning/thickening ; old code using step function
796      still available with #undef THSICE_FRACEN_POWERLAW
797      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
798    o testreport: change AD testing : check against results/output_adm.txt
799      using same scripts as for forward test.
800    
801    checkpoint59g
802    o adjoint testing: in preparation for changing testreport:
803      - output format: cost and grad written on separated lines
804      - ad output results in directory "results" (instead of "results_ad")
805    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
806    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
807    o pkg/ecco: allow user defined cost function contributions
808    o testreport:
809      Allow to choose (per experiment) the list of tested output variables
810       and the main variable (used to issue a pass/FAIL ) ;
811      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
812      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
813      Also modify printing of summary:
814       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
815       b) echo the list of tested variables in the individual summary.txt of
816          each experiment.
817    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
818      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
819      (but still depend on the tile decompostion of the domain).
820    o pkg/seaice: change a discretization detail to make the B-grid code
821      "more symmetric". This change is likely to remove all "ridges/leads" that
822      where quasi-aligned with the grid in B-grid solutions. It may also be
823      the solution to the stress coupling issues with the B-grid.
824    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
825      remove .cvsignore from input dir. (since testreport no longer run here).
826    o pkg/thsice:
827     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
828     - fix reshaping of sea-ice just after advection:
829       melt all the ice only if ice-volume is too small.
830     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
831       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
832     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
833    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
834      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
835    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
836      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
837      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
838      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
839      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
840      -> update output.txt
841    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
842     this affects truncation error: -> update output.txt of exp:
843      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
844      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
845    
846    checkpoint59f
847    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
848    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
849      a bounded range (in forward mode)
850    o pkg/ecco, ctrl, autodiff and mom_common:
851     internal parameter controls, completements of implementations
852    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
853    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
854      (not seem any difference in testing results).
855    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
856       at face corners.
857    o pkg/generic_advdiff:
858     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
859      loop range indices for computing vertical advection tendency
860      and do the calculation in the interior only (no overlap) ;
861      for now, only implemented for SOM advection (to save CPU time).
862     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
863    o exch2 adjoint
864      First set of changes:
865      - add exch2 hand-written adjoint templates
866      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
867        This will require cleanup in pkg/autodiff/*.F
868        (changed routines currently kept separate in verif. code/)
869      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
870        that used to hide exch2 or cubed-sphere specific code
871        (commented via 'cph-exch2')
872    o pkg/seaice
873      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
874    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
875       output of global_ocean.cs32x15.thsice .
876    
877    checkpoint59e
878    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
879      for B-grid vector (not yet tested) and C-grid vector (<- only used
880      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
881    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
882      (#ifdef ALLOW_SALT_PLUME)
883    o gather_2d/scatter_2d: removed halo regions
884    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
885      scheme and the corresponding test case (under front_relax dir). For now,
886      only available with Skew-flux form and not yet tested in realistic set-up.
887      adjoint: store directives updated, but gradient checks deteriorated,
888      so maybe GM/Redi adjoint is now broken.
889    o seaice adjoint
890      * add AREA, HEFF, HSNOW as control variable
891        (should not change lab_sea results)
892      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
893    o pkg/seaice:
894      * added computation of saltFlux in seaice_growth;
895        For time being, sea ice salinity is assumed constant
896        contribution of snow flooding to freshening of sea ice is neglected.
897        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
898        defaults to 0.0 in order to maintain backward compatibility.
899        Typical values for SEAICE_salinity are 4 to 10 g/kg.
900      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
901      * added SEAICE_availHeatFrac, which specifies fraction of surface level
902        heat content used to melt or grow ice
903      * commented out cap of HICE: it helps keep ice thinner
904      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
905      * applied OBCS T/S mask to HEFFM sea ice mask
906    
907    checkpoint59d
908    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
909     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
910     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
911    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
912     and change default value of parameter "GM_Small_Number";
913     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
914       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
915       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
916    o pkg/ecco: cost function when applying pkg/smooth to controls
917    o pkg/ctrl: add forcingPrecond run time parameter
918    o pkg/seaice:
919     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
920     - fix bug in metric terms of u-equation in LSR solver (implicit part),
921       changes verification/lab_sea
922     - rearrange implicit part of u-equation in LSR solver to make it easier to
923       read, understand, and debug. This causes changes at the truncation level.
924     - fix (serious) bug in the boundary conditions (sign error in the implicit
925       part) of the LSR solver. Changes all LSR results.
926     - fixed problem with HSNOW initialization to avoid thick snow when AREA
927       is initilized with small values - does not change lab_sea results.
928     - added HsnowFile initialization capability
929    o pkg/smooth: addition to model/src and pkg/ctrl so allow
930     initialization of pkg/smooth and application to control vector
931    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
932    o dependencies: pkg/profiles requires pkg/cal
933    o pkg/profiles:
934     - added option ALLOW_PROFILES_GENERICGRID
935         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
936         that interpolation information (grid points and coefficients) is provided
937         within the netcdf input files.
938         -> sample matlab scripts can be found in MITgcm_contrib/gael
939         that allow you to prepare netcdf input files.
940     - also modified: cleaner include statements, cleaner error print statements,
941       cleaner stops when error, and more tests of the netcdf input files consistency.
942    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
943    o pkg/seaice:
944     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
945       requires a new routine: seaice_diagnostics_fill.F
946     - make sure that seaice does not move if not forced (pressure replacement
947       method, Hibler and Ip, 1995), changes results
948     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
949     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
950       It is turned off by default (=-1.), because it changes the results.
951     - make it possible to read AREA from a file, too.
952    
953    checkpoint59c
954    o add S/R and diagnostics for oceanic mixed-layer depth
955    o move GMRedi call after all vertical mixing schemes (including KPP)
956    o pkg/thsice:
957     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
958      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
959    o pkg/obcs:
960     - bug fix for balance code
961    o pkg/seaice:
962      - allow values of SEAICE_elasticParm > 1
963      - add new parameter SEAICE_evpTauRelax as an alternative
964        to SEAICE_elasticParm
965      - make lsr boundary conditions free slip (by default), changes result
966      - add code for no slip boundary conditions for lsr
967      - set minimum of zeta to zero (and not 4e8) (changes results)
968      - add a cap on AREA after advecting AREA if seaice_growth is not called
969    o change calculation of Visbeck K:
970      - no longer depend on tapering scheme; instead, compute slope (limited
971        by GM_maxSlope). this is equivalent to what was comuted before with
972        clipping or linear tappering.
973      - fix vertical averaging (wrong by 1/2 level)
974      - leave the old version (but will not be maintained) within
975        #ifdef OLD_VISBECK_CALC / #endif
976      - update output of exp. ideal_2D_oce
977    o change error catch in calc_r_star to improve vectorization
978    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
979      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
980    o adjoint:
981      Re-organized adjoint checkpointing according to Matt Mazloff
982      (but with modifs/completions/cleanups)
983      Storing is now bundled into large arrays to optimized I/O
984      (and second step in cleanup of the_main_loop)
985    
986    checkpoint59b
987    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
988      - export/import (between ocean & coupler) fields needed for ocean DIC.
989    o pkg/seaice:
990      - get rid of three more exchanges seaice_calc_viscosities (required
991        different loop boundaries in seaice_lsr and seaice_ocean_stress)
992      - bug fix in seaice_ocean_stress (update of lab_sea required)
993      - reduce loop boundaries to necessary minimum also in seaice_evp
994      - go back to the old way of computing deltaC/Z as the adjoint likes that
995        better
996    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
997      passive tracer to an Age Tracer) + update output.txt
998    o pkg/exf:
999      - implement A-grid / C-grid selection for wind-stress input files.
1000      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1001      for now, in exf_bulk_largeyeager04.F only :
1002      - change implementation for case where windspeed + 2. components wind-stress
1003        are read-in. AND use rhoConstFresh to convert evap.
1004    o pkg/seaice:
1005      - use correct EXCH_UV for wind-forcing (on A-grid).
1006      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1007        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1008    o pkg/exf:
1009      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1010      EXF_INTERPOLATION:
1011      - merge global_with_exf/code version of exf_interp_read.F
1012        to the main code ;
1013      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1014        reading the file ; Important: This options needs to be defined to recover
1015        previous code.
1016        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1017      - no longer loose real*8 precision along the way when using exf_iprec=64.
1018    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1019      - change discretisation of evp-solver in order to avoid another exchange
1020        (changes lab_sea) and clean up a little
1021      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1022        help the adjoint (this also changes the results slightly)
1023      - add a few "_d 0" where they had been missing in seaice_evp.F
1024      - cleaning up: remove unused seaice_calc_rhs.F
1025    o pkg/exf: some cleaning-up:
1026      - change various "constants" into runtime parameters
1027      - cleaned-up Large&Yeager04 routine which should eventually
1028        replace exf_bulkformulae.F (changed names of S/R and CPP)
1029        and merged various ALLOW_ATM_WIND options
1030     only used with thsice pkg (in thsice_get_exf.F):
1031      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1032        which are used when useStabilityFct_overIce=TRUE (= the default)
1033      - change default values of ice & snow emissivity and scale downward LW
1034        by ice & snow emissivity.
1035    o pkg/thsice:
1036     fix few little problems, in thsice_calc_thickn.F:
1037      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1038      - melt only laterally if hIce < hThinIce (as the comments say)
1039      and in thsice_extend.F:
1040      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1041      - start to form ice as soon as the minimum ice-volume is reachable.
1042     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1043      and cpl_aim+ocn
1044    o pkg/kpp
1045     - move computation of surface related input fields to KPP into a new
1046       subroutine kpp_forcing_surf.F
1047     - remove wrong (within bi,bj loops) EXCH calls.
1048     - little cleaning (add argument myThid in last position, cvs header ...)
1049     - for now, fix conservation problem by exchanging KPPviscAz (may not
1050       be the best fix)
1051    o pkg/seaice
1052     - check for inconsistent evp parameter/cpp-flag combination
1053     - remove leftover errIO flat for obsolete name list error handling
1054    o OpenAD
1055     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1056    
1057    checkpoint59a
1058    o pkg/seaice: some parameter clarifications and a little bit of clean up
1059    o pkg/thsice: rename run-time parameters:
1060       himin       -> hIceMin
1061       himin0      -> hThinIce
1062       hihig       -> hThickIce
1063       i0          -> i0swFrac
1064       transCoef   -> bMeltCoef
1065       frac_energy -> fracMelting
1066      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1067       with default values (for now) that do not change the results.
1068      remove old version of thsice vars advection in pkg/seaice.
1069    o in FFIELDS.h:
1070      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1071      - make pLoad & sIceLoad always available (but still only used if
1072         ATMOSPHERIC_LOADING is #define).
1073    o pkg/kpp: replaced _KPP_RL with _RL
1074    o bug fixes for vertical diffusivity computations when both KPP and
1075        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1076        are no longer updating the vertical diffusivity array
1077        (passed as argument) but are (re-) setting those arrays.
1078    o pkg/seaice: fix bug in evp solver, while doing that
1079      - change (improve?) discretization of stress computations for both
1080        cgrid-lsr and evp solver
1081      - add a new routine to compute strain rates
1082      - the above changes lab_sea results
1083      - add no slip conditions for evp solver (off by default), lsr-version
1084        may follow
1085      - fix exchange for shear at Z-points (does not change lab_sea)
1086      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1087        (to force the user to pick a time step since there is not "safe" way
1088        of choosing it)
1089      - add principal stress diagnostics
1090      - rearrange fields for evp a little to avoid having to call a: too many
1091        exchanges and b: exchanges for stress trensor components which we do
1092        not have.
1093      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1094        of evp, complete rewrite for lsr case (latter is does not yet work
1095        in all cases)
1096    o pkg/kpp: add code to have mixing in shelf ice caverns
1097      - add myThid to all kpp routines (long overdue)
1098    
1099    checkpoint59
1100    o pkg/exf:
1101      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1102        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1103      - move exf header files from lower_case.h to UPPER_CASE.h ;
1104        add missing cvs Header & Name
1105      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1106      - add namelist param. selectStressGridPosition, exf_monFreq
1107      - retire many _CLIM routines, and remove data.exf_clim
1108        + params moved to data.exf
1109        + climsst, climsss now handled by exf_set_gen, i.e.
1110          climss?period=0 refers to constant field,
1111          climss?period=-12 to monthly forcing
1112      - split up namelists in data.exf
1113    o pkg/seaice:
1114      - remove seaice_exch and seaice_exch_uv
1115      - remove superfluous exchange of theta
1116      - add myThid to seaice_budget_ocean/ice
1117      - add new interface for atmospheric wind forcing (C-grid only)
1118        + new routine
1119        + two new field (taux, tauy for stress over ice)
1120        + removed one global field (DAIRN) for C-grid case only
1121    o pkg/thsise
1122      - 2nd set of modifs for thsice adjoint in conjunction with exf
1123    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1124    
1125    checkpoint58y_post
1126    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1127      vertical diffusivity, similar to that in MOM4; turned on using
1128      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1129      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1130    o Added capability for 3D specification of background vertical diffusion
1131      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1132      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1133      "data" file that contains the 3D vertical diffusivity coefficients.
1134    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1135      - add code within pkg thsice to advect & diffuse sea-ice fields
1136      similar to (and will replace) what has been added in  seaice_advdiff.F,
1137      but: - conserving Mass, Heat & Salt.
1138           - better when using non-linear advection scheme (not yet fully tested)
1139           - can also be used in atmospheric set-up (for now, only the diffusion).
1140    
1141    checkpoint58x_post
1142    o IO option for global-file compact format:
1143      - add options when generating topology (utils/exch2/matlab-topology-generator)
1144      - add I/O capability (pkg/mdsio).
1145      - adapt utils/matlab/rdmds.m to read this format.
1146      for now long-line format not yet supported by pkg/mdsio (& exch2).
1147    o shelfice: add a few diagnostics
1148    
1149    checkpoint58w_post
1150    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1151      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1152      (and replace horiVertRatio in NH code).
1153      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1154                         and tutorial_plume_on_slope (sensitive to truncation)
1155    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1156      directly to drive seaice model (C-grid only)
1157    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1158     - reintroduce computation of wind from stress,
1159     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1160       mass points to avoid tau = 0
1161     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1162    o rdmnc.m: make it work with "global" files created with gluemnc
1163    o rdmnc.m : some improvements in dealing with singleton dimension
1164      (tested on all testreport mnc output files).
1165    o genmake2: disable pkg/profiles if netcdf test fails.
1166    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1167    o move call to cal_readparms up to make calendar parameters/variable available
1168      to all packages
1169    
1170    checkpoint58v_post
1171    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1172      useDynP_inEos_Zc tested.
1173    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1174    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1175      and portions thereof.  See read_cs.txt for description and examples.
1176    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1177      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1178      following the great-circle arc between those 2 points.
1179    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1180      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1181    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1182     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1183     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1184     - still needs work (not working with some options ; efficiency to improve)
1185       and serious testing.
1186     - use this scheme for temperature & salinity in 2 advection test exp.:
1187       advect_xy & advect_xz, respectively.
1188    
1189    checkpoint58u_post
1190    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1191    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1192    o testreport: add option "-skipdir" to skip some test.
1193    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1194      momentum calculation.
1195    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1196    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1197      remove checkpoint.F and the_correction_step.F (no longer used);
1198      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1199    o add option (linFSConserveTr) to correct for tracer source/sink due to
1200      Linear Free surface
1201    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1202    o pkg/thsice: fix reading mnc-pickups
1203    
1204    checkpoint58t_post
1205    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1206    o pkg/mdsio:
1207     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1208       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1209       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1210     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1211     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1212       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1213     - new S/R (to replace MDSWRITEMETA), which allows to write more
1214       informations (variable names, time ...) to meta files.
1215     - modify rdmds.m to give back the meta file content.
1216    o pkg/diagnostics: change vertical interpolation to be safer, and more
1217       flexible (define p-levels to interpolate to in data.diagnostics);
1218      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1219       diagnostic pointer.
1220    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1221    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1222    o fix multi-category seaice:
1223     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1224       SEAICE_MULTICATEGORY
1225     - fix short wave heat flux
1226    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1227       and allow to use EVP solver. Change forward lab_sea: test both EVP
1228       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1229    o Initial check-in of lab_sea adjoint
1230      (very similar to natl_box_adjoint/code_seaice)
1231      * used C-grid and EVP solver
1232      * used KPP, GM/Redi
1233      * uses inAdExact=.TRUE.
1234      * gradient checks fail for both ADM and TLM
1235        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1236        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1237        issue is related to forward mismatch between g77 an ifort
1238    o pkg/seaice: overhaul of thermodynamics
1239     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1240     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1241     - move a few global fields out of SEAICE.h into seaice_growth.F and
1242       make them 2D (FICE/QNETO/ ...)
1243     - remove FO (it is the same as QNETO)
1244     - introduce a few local fields to avoid modifying external fields such
1245       as atemp, etc.
1246    
1247    checkpoint58s_post
1248    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1249      changed exf_set_gen.F so that
1250        genperiod=0 means input file is one time-constant field and
1251        genperiod=-12 means input file contains 12 monthly means
1252    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1253      this affects truncation error ; generate new output file for exp. which
1254      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1255        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1256        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1257        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1258        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1259        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1260    o start implementation of deep-atmosphere and anelastic formulation
1261    o verification: remove 2nd copy of input files and use script "prepare_run"
1262      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1263    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1264    o profiles: fix for multithreaded case
1265    
1266    o diagnostics: rename few diags:
1267      s/'PRESSURE'/'RCENTER '/g
1268      s/'TICE    '/'oceFreez'/g
1269      s/'TAUX    '/'oceTAUX '/g
1270      s/'TAUY    '/'oceTAUY '/g
1271      s/'SWFLUX  '/'oceQsw  '/g
1272      s/DIFx/DFxE/g
1273      s/DIFy/DFyE/g
1274      and add few ocean-forcing diagnostics:
1275      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1276    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1277      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1278      as actual snow thickness.  It now refers everywhere to effective snow
1279      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1280    
1281    checkpoint58r_post
1282    o modifications to pkg/seaice/growth.F, which change results of
1283      lab_sea experiment: fixes pertain to melting snow over open water, to
1284      masking EVAP under sea ice, and to using the correct AREA variable for
1285      computations of EVAP, PRECIP, HSNOW, and GHEFF
1286    o add ability to read bathy, salt, and theta using MNC (off by def)
1287    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1288      both are turned off by default and do no change any results
1289    o seaice advection with pkg/thsice: a step toward the use of non-linear
1290      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1291    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1292      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1293      in natl_box (affects results @ truncation level: update output.txt)
1294    o multi-threading and IO:
1295      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1296      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1297        (needed to work with SingleCpuIO): tested in all verif. exp.
1298    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1299      affects the results (but none of the verification test uses this scheme).
1300    o Adding some pkg/diagnostics capability to pkg/seaice
1301      (will certainly be subject to changes)
1302    o ctrl: adding new control variables:
1303      lwflux, lwdown, evap, snowprecip, apressure, runoff
1304    
1305    checkpoint58q_post
1306    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1307      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1308      high_res_cube configuration by 4% on Columbia.
1309    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1310      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1311      dynamical allocation (seems to work in multi-threaded).
1312    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1313      single CPU io) so that TAF does not have to see EESUPPORT.h
1314    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1315    
1316    checkpoint58p_post
1317    o obcs: stop if obcs is used with useCDscheme = .true.
1318    o shelfice:
1319     - fix a sign error so that no slip at shelfice interface works
1320     - remove stop for combination non-hydrostatic code and shelfice. That does
1321       not mean, that the results are correct, but at least they are numerically
1322       stable
1323    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1324    o added adjoint exch routined for all exch*3d* routines
1325      and updated flow directives
1326    
1327    checkpoint58o_post
1328    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1329      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1330    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1331      and clean-up reading/writing of pickup files.
1332    o fix local version of read/write pickup (NH part) in rotating_tank/code
1333    o simplify EXCH interface:
1334     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1335     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1336    o added the regrid package
1337    o shelfice:
1338     - add a simple boundary layer scheme to reduce noise
1339     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1340    
1341    checkpoint58n_post
1342    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1343       local variable (not in common block).
1344    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1345      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1346      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1347        to work with SingleCpuIO.
1348    o add "_d 0" to real constant of pkg/cfc subroutines ;
1349       update exp. cfc_exemple & tutorial_cfc_offline output files.
1350    o multi-threading and IO:
1351      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1352        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1353      - barrier before and after reading.
1354      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1355      - avoid using MDS_WRITELOCAL for LAND pkg output.
1356      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1357        common-block variables ; Allows multi-threading with master-thread IO.
1358    o change default MAX_NO_THREADS from 32 to 4 ;
1359      and stop cleanly when MAX_NO_THREADS is too small.
1360    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1361    
1362    checkpoint58m_post
1363    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1364       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1365    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1366       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1367       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1368    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1369        add MITgcm_tutorials (= code + all the tutorials)
1370    o ecco, option to compute cost for total ssh (mean+anom)
1371    o consistent with addition of ptracer and ssh in pkg/profiles
1372    o profiles: adding ptracer and ssh
1373    o testreport: change multi-test output-file name
1374      (from output.txt.{name} to output.{name}.txt)
1375    o profiles: now ok for mutli-tiles case
1376    o seaice: add 4 parameters for different advection schemes for area,
1377      (effective) seaice thickness, enthalphy, and snow height. Their default
1378      is the standard parameter SEAICEadvScheme
1379    o calc_gw:
1380     - add cosFacU in zonal viscous flux (harmonic.visc.).
1381     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1382       of tutorial_plume_on_slope.
1383    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1384    o calc_gw: true flux-form, account for horizontal grid spacing.
1385      update rotating_tank results, but not plume_on_slope (affected at
1386      truncation level, 11 digits).
1387    
1388    checkpoint58l_post
1389    o calc_gw:
1390     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1391     - remove side-drag for now (need to fix it); update plume_on_slope results.
1392     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1393    o commit code to make SST/SSS weights spatially variable
1394      (based on either variable in-situ or variable initial T/S weights)
1395    o pkg/ecco:
1396      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1397        now based on horizontally varying weights wthetaLev, wsaltLev
1398      * cost_averagesflags now returns year indices in addition to day, month
1399      * sflux balance is performed on annual basis
1400        (sflxumm, sfluxmm2, bal_sfluxmm)
1401      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1402        including separate counting and multipliers
1403    o pkg/rbcs
1404      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1405    
1406    checkpoint58k_post
1407    o testreport:
1408     - always build in dir. "build" (if not there, mkdir build instead of building
1409       & running in input)
1410     - run in dir run (if it exists), in build otherwise.
1411     - call prepare_run (if input/prepare_run exists)
1412     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1413    o pkg/exf modifications to interpolation and rotation routines for more
1414       reasonable treatment of North Pole singularity: for tracers North Pole
1415       value is set to northernmost zonal-mean value, for zonal velocity it is
1416       set to zero, and for meridional velocity it is set to northernmost value.
1417    o pkg/exf/exf_check_range.F
1418     - add tile index to diagnostics and move stop statement to the very
1419       end of the routine.
1420    o pkg/diagnostics: (diagnostics_main_init.F)
1421      define title of isomorphic variables according to the current config.
1422    o pkg/thsice with pkg/seaice dynamics:
1423    - fix domain of computation (interior only, required for exf) and do exchanges
1424    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1425    o towards a standard way of dealing with multi-threading in MONITOR
1426      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1427    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1428       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1429    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1430    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1431    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1432       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1433    o tracer advection:
1434     - clean-up and simplify calc_common_factors.F
1435     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1436       advection subroutine (but still not used within DST advection S/R)
1437    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1438    
1439    checkpoint58j_post
1440    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1441      from file (collects calls previously in FORWARD_STEP)
1442    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1443    o adjoint store dir. adjusted accordingly
1444    o genmake2
1445      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1446    
1447    checkpoint58i_post
1448    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1449      on wind stress (SEAICEstressFactor defaults to 1.)
1450    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1451      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1452    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1453      on CS-grid: no longer loosing mass.
1454    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1455    o pkg/ggl90: fix sloppy output and fix a bug
1456    o pkg/seaice: added SEAICEuseEVPpickup parameter
1457      - Set to false in order to start EVP solver with
1458        non-EVP pickup files when using SEAICEuseEVP
1459      - fix sign error in diffusion in seaice_calc_rhs
1460    
1461    checkpoint58h_post
1462    * Modifications for bottom topography control
1463      o replace hFacC by _hFacC at various places
1464      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1465      o add non-self-adjoint cg2d_nsa
1466      o update autodiff support routines
1467      o re-initialise hfac after ctrl_depth_ini
1468      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1469    * Adding verification for 5x5 box (4-layer) bottom topography control
1470    
1471    checkpoint58g_post
1472    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1473       used for mean seasonal cycle, mean diurnal cycle); add an example
1474       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1475    o pkg/ggl90:
1476      - add parameter (minimum surface kinetic energy)
1477      - fix bug (avoiding division by zero)
1478    o couple pkg/thsice to pkg/seaice:
1479      - modify advection in seaice to accomodate new scalar fields to be advected
1480      - only muliDimAdection scheme work with seaice/thsice
1481      - mapping of thsice-variables to seaice-variables, back and forth
1482      - does not break the verification experiments, but does not give the
1483        desired results either
1484    o pkg/seaice
1485      - make (default) second order advection a bit less confusing?
1486    
1487    checkpoint58f_post
1488    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1489      to pkg/seaice):
1490      - new routines thsice_map_exf and thsice_get_exf provide the interface
1491      - add an additional formal parameter to thsice_solve4temp
1492    o pkg/exf:
1493      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1494      - correct Stefan-Boltzmann constant
1495      - new parameter for longwave surface emittance
1496      - separate some stuff from exf_bulkformulae into new routines  
1497        exf_radiation, exf_wind
1498      - add new parameters and constants: longwave emissivity for ocean, ice
1499        and snow, evaporation parameters over ice
1500      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1501        either wind from stress or stress from wind
1502    o pkg/thSIce:
1503    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1504    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1505       and THSICE_CALC_THICKN
1506    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1507    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1508      to make debugging easier.
1509    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1510    o pkg/bulk_force:
1511      - clean-up comments and parameters ;
1512      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1513    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1514      generate new output for test-experiment: aim.5l_cs.thSI
1515    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1516      testreport accordingly
1517    
1518    checkpoint58e_post
1519    o SEAICE_CGRID adjoint done
1520    o R_STAR adjoint implemented.
1521      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1522      * need to sort out init. of h0facc, etc.
1523    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1524      to be able to use it in pure forward.
1525    
1526    checkpoint58d_post
1527    o upgrade simple test-experiment to tutorial example:
1528     step.1: duplicate the experiment and (step.2) will remove the old copy.
1529      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1530      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1531      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1532      tutorial_global_oce_biogeo    <- copy of dic_example
1533      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1534      tutorial_plume_on_slope       <- copy of plume_on_slope
1535      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1536      tutorial_global_oce_optim     <- empty for now (David ?)
1537      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1538     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1539    o correct a sign problem in cost_scat.F
1540    o obcs and ptracers: fix boundary conditions for advections schemes
1541      with larger stencil
1542    o thsice adjoint: start
1543    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1544      completeness
1545    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1546      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1547    o ptracers adjoint:
1548      * avoid extensive recomputatations
1549      * fix missing re-init. of gptr (missed by TAF)
1550    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1551      me to turn off the excessive output to STDOUT that this package produces
1552    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1553      and add those terms in Vector-Invariant formulation.
1554    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1555      if the control period (xx_hfluxperiod etc) is 0
1556    o in profiles pkg, clean routines and fix details
1557    o in ecco pkg, reading ssh data:
1558      fix problem in case the model does not start at iter0=0
1559    o fix mnc-pickup/restart for ptracers
1560    o new package prifiles:
1561      code to compute profile-based cost by Gael Forget
1562      (modifs in ecco, ctrl, autodiff)
1563    o Benign bug fix in initialization (spotted by M. Mazloff) of
1564      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1565    
1566    checkpoint58c_post
1567    o adjoint: finish NLFS adjoint and provide reference output in
1568      verification/global_ocean.90x40x15/results_ad_nlfs
1569    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1570      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1571      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1572      with SEAICE_CGRID defined.
1573    o move calendarDumps from "data" to "data.cal" and clean-up the code
1574      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1575    o add useEXF & useCAL flags (for now, set in hard-coded way)
1576    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1577      (were missing in NH mode, and wrong in quasihydrostatic mode).
1578      waiting for Chris updated version of calc_gw to add those CALLs.
1579    o fix bug in quasihydrostatic S/R ;
1580      add a test for this option: global_ocean.90x40x15.qshyd
1581    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1582      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1583    o add on/off flag useOffLine for package OFFLINE
1584    o seaice:
1585      - modify advection so that it works also on the C-grid
1586      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1587        problem in multi-tile runs with C-grid
1588      - add flags for clipping ice velocities and/or masking solver forcing
1589      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1590        C-grid solver
1591      - added a few comments to seaice_diffusion.F
1592      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1593        are now exclusive)
1594      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1595        required re-ordering the code a little:
1596       + make DAIRN global variable (defined in SEAICE)
1597       + move computation of the viscosities eta and zeta into a new separate
1598         routine (because I need to recompute them in seaice_ocean_stress.F)
1599    
1600    checkpoint58b_post
1601    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1602      update output.txt of exp. aim.5l_cs.thSI
1603    o various mnc cleanups and improvements:
1604      + shrink lookup tables by factor of ~4
1605      + better error reporting when running out of lookup space
1606      + able to handle longer path/file names (up to 500 chars)
1607    o adjoint:
1608      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1609      - TBD: "hidden" mom_vecinv recomp. in dynamics
1610    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1611     (allow to differentiate between forcing components using new integer flags:
1612      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1613     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1614    o ecco
1615      - enable trend removal from SSH anomaly obs.
1616    o adjoint
1617      - a fix for PmEpR when #undef EXACT_CONSERV
1618      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1619      - try to fix "hidden" recomp. in forward_step for NLFS
1620        (NLFS seems broken sometimes after I checked it in)
1621    o seaice:
1622     - add c-grid version of the dynamic solver:
1623       + three new routines that are the c-grid substitute lsr, dynsolver
1624         and ostres
1625       + put a few fields that were local to dynsolver into global common
1626         blocks, so that I can move the computation of stresses etc into
1627         seaice_lsr (saves coding but may break the adjoint).
1628     - replace more hardwired parameters by runtime parameters
1629     - add ice masks that mask the rhs of the implicit solvers where there
1630       is no ice (commented out in seaice_dynsolver, because i am not sure
1631       if this works properly), eventually this should replace the clipping
1632       of ice velocities in seaice_dynsolver to +/-40cm/s.
1633    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1634      include it only where its needed
1635    o move balancing of fluxes before the call of external_forcing_surf
1636    o seaice:
1637      - correct units of turning angles (now they are really in degrees)
1638      - move computation of GWATX/Y out of main routine into dynsolver
1639      - initialize GWATX/Y in seaice_init
1640    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1641      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1642    o seaice: add runtime flags for turning angles (default to zero)
1643    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1644      and trend from exf forcing and ctrl control adjustments
1645    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1646      (since checkpoint57x_post)
1647    o change the default rotation period to 86164.s = the Earth rotation
1648    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1649      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1650    o seaice advection: add code for choosing between the default (2nd order
1651      central differences) and multiDim advection schemes provided by
1652      pkg/generic_advdiff
1653    o seaice:
1654      - removed all references to SEAICE_GRID.h fields from
1655        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1656        (cubed-sphere configuration will change a little)
1657      - grid computations in seaice_init are obsolete now.
1658      - cleaned up code a little so that is easier to read (hopefully).
1659      - added new (better?) discretizations of default advection and diffusion
1660        (turn on with SEAICEuseFluxForm)
1661      - replace 1 in 3d global fields by kSurface in growth.F
1662      
1663    checkpoint58a_post
1664    o seaice:
1665      - bug fix in advect.F
1666    o shelfice:
1667      - separate shelfice load anomaly from pload (breaks with time
1668        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1669        Its default is 0., but it may be computed more cleverly from (unknown)
1670        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1671        done offline. A good approximation of the pressure load anomaly is
1672        necessary to avoid large initial adjustment processes underneath
1673        deep-reaching shelfice.
1674      - small fix in ISOMIP shelfice_thermodynamics
1675      - add more sophisticated thermodynamics of Hellmer (1989), this is
1676        now the default
1677      - give a few constants more intuitive names
1678    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1679      if bulk formulae are used in long integration (especially EmPmR). Turn
1680      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1681      if balancePrintMean, the imbalance that is substracted is printed to
1682      STDOUT.
1683    o fix bug (typo) in obcs_apply_eta.F
1684    o add a new package shelfice which enables us to model the circulation
1685      underneath shelf-ice with draughts of hundreds of meters.
1686     - works
1687     - to do: + include improved thermodynamics
1688              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1689                instead of new field kTopC
1690              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1691                instead of new field R_shelfIce and new code in ini_depth.F
1692                and ini_mask_etc.F?
1693              + adjust vertical mixing schemes?
1694    o seaice pkg:
1695     - add a cpp-flag to include a simple formula for a salinity dependent
1696       freezing point of sea water at the surface
1697     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1698       meridional stresses are now different (and hopefully correct)
1699    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1700       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1701       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1702    o pkg/diagnostics: add options and parameters for regional-statistics
1703       diagnostics ; define regions by reading a region-mask from a file
1704       (might add other options later)
1705    o pkg/bulk_force:
1706     - add option and parameters to use AIM surface-flux formulae.
1707     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1708       others forcing fields (defined in PARM05, parameter file "data") are loaded
1709       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1710     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1711     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1712     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1713       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1714     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1715    
1716    checkpoint58
1717    o add "--embed-source" option to genmake2 which, when the supporting
1718      tools can be compiled (as determined by genmake2) will turn on the
1719      embed_files package which then embeds the entire MITgcm source code
1720      (*.[fFhc] + Makefile) used for the build within the executable
1721      - requested by CNH but off by default
1722      - adds a paltry <9MB to the mitgcmuv executable in most cases
1723      - only writes the output when useEMBEDSRC in eedata is true
1724    o clean up 3-dim. relaxation codes:
1725      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1726      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1727      * Thanks to Tom Haine for testing!
1728    
1729    checkpoint57z_post
1730    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1731      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1732    o fix the pickup behavior for obcs in combination with ptracers
1733    o fix a bug in ptracers_external_fields_load
1734    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1735      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1736    o transfered surface NH pressure to eta field (if exactConserv).
1737    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1738         and update lab_sea output.txt file.
1739    o completing 3-dim. relaxation code: additional term
1740         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1741      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1742      * At compile time, in "EXF_OPTIONS.h" set
1743          #define  ALLOW_CLIMTEMP_RELAXATION
1744          #define  ALLOW_CLIMSALT_RELAXATION
1745      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1746          tauThetaClimRelax3Dim = 15552000.0,
1747          tauSaltClimRelax3Dim  = 15552000.0,
1748      * 3 cases:
1749          1) Use a constant-in-time 3-dim. field
1750          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1751          3) Real-time relax. to time-evolving prescribed field
1752    o Adding Laplacian-type smoothness constraint on
1753      initial and boundary (forcing) controls (ic, bc)
1754      * enable at compile-time via
1755        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1756      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1757      * Absolute scale somewhat unclear so far
1758      * no area weighting was included since no other cost term does so far
1759    
1760    checkpoint57y_post
1761    First step for a NLFS adjoint
1762    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1763    o new init. routines for calc_r_star, calc_surf_dr
1764    o still need to deal with ini_masks_etc
1765    o testreport seemed happy
1766    checkpoint57y_pre
1767    
1768    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1769    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1770    o add new offset feature to offline pkg (plus minor cleanup)
1771    o cfc fixes for final year of integration
1772    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1773      be in GCHEM_OPTIONS).
1774    
1775    checkpoint57x_post
1776    o fix testreport Pb in multiple test experiment.
1777    o cleanup our namelist syntax in verification:
1778      - make it more F95 standards compliant (some work still needed)
1779      - allows the vast majority of our tests to work with gfortran
1780    o Non-Hydrostatic:
1781     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1782     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1783    o Allow to apply AB on T,S rather than on AB(gT,gS):
1784     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1785     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1786       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1787     - need a "clever" read_pickup to restart from the other AB formulation
1788    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1789    o remove some unused variables (reduces number of compiler warnings)
1790    o adjoint
1791      * Disable useVariableViscosity for adjoint for time being
1792        (there are a number of extensive recomputations)
1793      * Initialize certain variables needed for adjoint
1794    
1795    checkpoint57w_post
1796    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1797                 fix the singleCpuIO RS version of MDSWRITEFIELD
1798       and add a WARNING if using globalFiles=T with multi-processors.
1799    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1800      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1801    o tracer advection scheme:
1802      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1803       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1804       was not very convenient).
1805      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1806       (further tests needed for the implicit DST & Flux-Limiter schemes).
1807    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1808      and sRef for convenience, handy, when you want to initialize
1809      ptracers in a large domain with a constant non-zero value. Also,
1810      untangle ptracers_init.F a little.
1811    
1812    checkpoint57v_post
1813    o change dome exp. to use variable viscosity in side-drag terms.
1814    o remove all the files from the cfc_offline test since they are now
1815      incorporated into tutorial_cfc_offline which has been producing
1816      identical results for a few days of testing
1817    o add new parameter: sideDragFactor to enable half-slip-side BC
1818      and change side-drag S/R to use viscosity from mom_calc_visc
1819      (can switch back by setting sideDragFactor=0.); affects results at
1820      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1821       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1822    o vorticity & strain are now computed without masking, to account for
1823      no-slip-side BC in variable viscosity calculation ; mask is applied
1824      anyway later on, before computing advection/coriolis terms.
1825    o modify exp4 to test new obcs support for reading from external files
1826      and for passive tracers
1827    o fix behavior of ptracers_monitor when monitor output is written to a
1828      netcdf-file; still not independent of monitor.F (writes in the same
1829      file).
1830    o change default value of tRef (put a uniform, meaningful value for ocean
1831      & atmos) and initialize sRef (was missing, as Martin mentioned).
1832    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1833      to be proportional to enstrophy dissipation length.  Thus,
1834       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1835      This is now consistent with Smagorinsky and with the manual.
1836    
1837    checkpoint57u_post
1838    o OBCS and PTRACERS: add open boundary support for passive tracers
1839      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1840        OB-values from file; this is not different from the way theta and salinity
1841        are treated
1842      - however, Orlanski-radiation conditions are not supported, and the model
1843        will stop if you use pTracers and Orlanski at the same time.
1844      - beefed up the rountine obcs_external_fields_load: now only those open
1845        boundary values are overwritten with values from files for which there
1846        are really files, otherwise the OB-fields remain untouched. This makes
1847        it possible to use different OBs at different ends of the domain (as
1848        with EXF)
1849    o reduce number of exch calls in shap_filt (s2).
1850    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1851      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1852    
1853    checkpoint57t_post
1854    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1855    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1856      same truncation, independent of the face number: affects affects several
1857      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1858    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1859      note that biharmonic viscosity + no-slip was not tested in any experiment.
1860    o fix bug in non-linear free-surf side-drag ; generate new output for
1861      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1862    o make mnc honor the writeBinaryPrec flag for most kinds of output
1863    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1864    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1865      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1866    o add brackets in multi-terms sum to get same truncation, independent of
1867      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1868      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1869    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1870      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1871      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1872      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1873      Suggested values of viscosity parameters found in mom_calc_visc.
1874      Many new viscosity diagnostics available.
1875    
1876    checkpoint57s_post
1877    o Add clearing-house for viscosity calculations, mom_calc_visc and
1878      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1879      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1880      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1881      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1882      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1883      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1884      ViscAhStrain and viscAhTension are now retired.
1885    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1886    o In response to JMC's bug report, genmake2 now ignores any soft-links
1887      that it finds in the *current* directory when searching for files.
1888      Soft-links found in any other source directories will still work as
1889      they did before.
1890    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1891      a C routine to unlimit the stack size
1892    o mnc-ify pkg/aim snapshot vars
1893    o mnc-ify pkg/land as requested by Daniel
1894    o various changes to mnc including:
1895      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1896      - output can now be grouped so that all files within a group
1897          change the ITER portion of their names in lock-step together
1898      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1899          and works with both EXCH1 and EXCH2 (but needs more testing)
1900      - writing works for all verification test cases w/ g77 on Linux
1901    
1902    checkpoint57r_post
1903    o make MNC variable initialization happen earlier
1904    o add diagnostics for (almost) each term of the momentum Eq.
1905    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1906    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1907    o remove MINIMAL_TAVE_OUTPUT option ;
1908      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1909    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1910      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1911    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1912    o add time-dependent SST, SSS control
1913    o cost terms in ecco/ modularized (new cost_generic.F)
1914    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1915    o new infrastructure for seaice model vs. obs misfits in seaice/
1916      * driver from the_main_loop.F is seaice_cost_driver.F
1917      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1918      * gradient check in Exp. 6a of natl_box_adjoint/
1919    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1920      (see README file)
1921    
1922    checkpoint57q_post
1923    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1924    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1925      - bug was reported by Jean-Michel and Ian Fenty
1926    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1927      update exp. cpl_aim+ocn output.
1928    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1929      Needed for high-res. runs with large global files
1930      to be able to limit tapelev size
1931    o Changed some tests for adjoint:
1932      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1933      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1934      * global_ocean.90x40x15/ back to default 3-level checkpointing
1935    o Modifications to enable scripted COMMON to MODULE conversion
1936      * verification/OpenAD/code/ has necessary scripts and description;
1937      * converts, compiles and runs successfully;
1938    
1939    checkpoint57p_post
1940    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1941    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1942      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1943    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1944    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1945      (was already the case for dissipation with mom_vecinv,
1946       and also the case for grad.PhiHyd when staggered-timeStep)
1947      This will allow to put dissipation out-off the AB time-stepping.
1948     Unfortunately, affects truncation error. Update output of exp. that "fails"
1949      (cg2d matching number) and leave the others for later: front_relax(10),
1950      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1951      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1952    
1953    checkpoint57o_post
1954    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1955      (2) its ready to be documented during the 20050801 DocFest
1956    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1957      for ideal_2D_oce and lab_sea on linux_ia32_g77
1958    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1959      in global1x1_tot/code_seaice_adj to access indices 32, 33
1960      (worth another tag)
1961    
1962    checkpoint57n_post
1963    o adding precip control xx_precip 32
1964    o adding swflux control xx_swflux 33
1965    o Replacing 10 forcing penalty cost routines by 1 generic.
1966    o Implementing partitioning in time-mean and variable adjustment
1967      for atmos. state.
1968    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1969    o in natl_box_adjoint:
1970      * updated exp 1 to 10
1971        (but does not have time-mean vs. variable split results yet)
1972    o updated global1x1/*_seaice_adj/
1973      to incorporate latest changes
1974    o enable useSingleCpuIO for mdsio vector routines
1975      (applies in particular to tapelev I/O)
1976    o removed inefficient K-loop in all active_file*control*.F
1977    
1978    checkpoint57m_post
1979    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1980      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1981    o pkg/exch2: filling of face-corner halo regions is optional
1982      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1983    
1984    checkpoint57l_post
1985     tag before updating tutorials (pre-release-2)
1986    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1987       for output and interpolation of input fields onto model grid)
1988    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1989       Affects results of exp. rotating_tank ; update output.txt.
1990    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1991          and taking the square quantity and/or using a fraction-weight field.
1992    o fix aim_diagnostics_init.F mate numbers.
1993    o add mnc output capability to diagnostics/diagstat and update
1994      our cvsignore files for the ACSII output generated
1995    
1996    checkpoint57k_post
1997    o lab_sea now uses diagnostics package and provides a suite of
1998      new EXF diagnostics output.
1999    
2000    checkpoint57j_post
2001    o exf
2002      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2003        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2004        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2005      * extended diagnostics output
2006        - now includes all EXF variables
2007        - hs, hl moved to common block
2008        - separate S/R for diagnostics, called after ctrl vector is added
2009        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2010        - EXFqnet contains true Qnet (i.e. includes qsw)
2011      * updated verif. lab_sea, global_with_exf
2012      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2013        to ensure that diagnostics sees a true EXFqnet
2014    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2015    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2016      several times with different frequencies.
2017    o mnc-ify the thsice package as requested by Daniel Enderton
2018      - the monitor--MNC output needs work
2019      - many attributes need to be added (most are currently blank)
2020    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2021      - many attributes need to be added (most are currently blank)
2022    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2023    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2024    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2025      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2026         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2027    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2028     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2029    
2030    checkpoint57i_post
2031    o Diagnostics package was changed: diagnostic allocation is now deactivated
2032      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2033    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2034      add 1rst Order upwind vertical Shear.
2035    o add a quick fix for A/B checkpointing in OFFLINE mode
2036    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2037      end-run around the C/Fortran linking horror in eesup/src/timers.F
2038    o added pkg/runclock: allows user to terminate run based on wall clock
2039    o added non-hydrostatic scaling parameter: nh_am2
2040    o pkg/my82: futile attempt to make results compiler-independent by adding
2041      some "_d 0", etc. no effect.
2042    o for mnc output, fill the 'T' coordinate var with myTime and create a
2043      separate 'iter' variable for iteration count
2044    o pkg/diagnostics:
2045      add new capability: output of Global/Regional & per-level statistics ;
2046      tested against monitor output (including land & thSIce) on various exp.
2047    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2048    
2049    checkpoint57h_done
2050      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2051      data.diagnostics, data.gchem, data.ptracers) is done.
2052    
2053    o pkg/diagnostics: prepare for Global/Regional statistics.
2054      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2055    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2056      and rename it: DIFFERENT_MULTIPLE
2057    
2058    checkpoint57h_post
2059    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2060    o pkg/diagnostics: change output frequency, now in seconds (instead
2061      of Nb of iterations). This requires to change data.diagnostics.
2062    checkpoint57h_pre
2063    
2064    o in mnc, let the user create the output dir if both mnc_outdir_date
2065      and mnc_outdir_num are false
2066    o add fflags() to pkg/diagnostics which allows one to specify, on a
2067      per-file basis, the file precision [default behavior is unchanged]
2068    o added diagnostics to pkg/kpp, including computation of mixed layer
2069      depth based on a temperature/density criterion
2070    o updated verification/natl_box to test the new pkg/kpp diagnostics
2071    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2072    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2073    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2074      not mnc -- this mistake was found by JMC and is now corrected
2075    
2076    checkpoint57g_post
2077    o add Adams-Bashforth 3rd Order time stepping:
2078      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2079      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2080    checkpoint57g_pre
2081    
2082    o make lambda[Theta,Salt]ClimRelax spatially varying
2083      (default remains spatially uniform constant based on tau)
2084    o added new control variables
2085      * init. uVel, vVel, etanN
2086      * lambda[Theta,Salt]ClimRelax
2087    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2088      (suggested by G. Forget)
2089    
2090    checkpoint57f_post
2091    o add parameter "baseTime" = model base time = time at iteration zero
2092      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2093      account for baseTime shift
2094    o move Coriolis arrays from PARAMS.h to GRID.h
2095    checkpoint57f_pre
2096    
2097    o mnc-ifying the seaice package
2098    o introduced an alternative length scale calculation for use in the limiting
2099      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2100    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2101    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2102      as well as grad(vort3).  Made it compatible with both approximate form
2103      for the cubed sphere and full form of these gradients.  Added flag
2104      useFullLeith to select between approximate and full form.  
2105    o add "d0" in getcon.F to reduce differences between compilers/platforms
2106      update output.txt of exp. fizhi-gridalt-hs
2107    o change port_rand funtion to allow to set the seed.
2108    o fix obscure MNC bug involving conversion between reals and integers
2109      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2110        new version is now more standards-compliant
2111    o adjoint-related modifications
2112      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2113      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2114      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2115    
2116    checkpoint57e_post
2117    o Adding eddy stress controls a la Ferreira et al.
2118    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2119    
2120    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2121      update output.txt of exp. fizhi-gridalt-hs
2122    o add more "Z" dimensions and associated coordinate vars to MNC
2123    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2124    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2125      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2126      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2127      months and years.  Requires pkg/cal.
2128    o diagnostics: add pickup functionality
2129      - off by default for backwards compatibility
2130      - current version only uses MDSIO -- MNC will be added
2131    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2132    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2133    
2134    checkpoint57d_post
2135    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2136    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2137      output from the diagnostics package
2138    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2139    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2140      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2141    o add coordinate variables to the MNC output from the diagnostics package
2142    o change MNC-flags default value: true when useMNC=TRUE
2143    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2144      the ability (off by default) to read the grid information using MNC
2145    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2146    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2147    o do snap-shot diagnostics at the middle of the time-interval (instead of
2148      at the end).
2149    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2150      new test for AIM with thSIce + slab-ocean
2151    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2152    o move state variable diagnostics to the beginning of the time step ;
2153      (note: still needs some work specially for snap-shot diagnostics)
2154      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2155    
2156    checkpoint57c_post
2157    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2158    o generate new output.txt files on faulks with g77 & the new -ieee option
2159    checkpoint57c_pre
2160    
2161    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2162      update output.txt of exp. global_ocean.90x40x15
2163    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2164      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2165    o add saltFlux(+File) forcing capability with periodicExternalForcing
2166    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2167    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2168    o improvements for the MNC output from DIAGNOSTICS:
2169      - correct handling of the unlimitied dimension
2170      - all dims now have associated coordinate variables
2171      - variables located at U, V, and Corner ("Z") points are now written
2172        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2173        *all* data points are output
2174    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2175    o added pkg/seaice/seaice_monitor.F
2176    o mdsio_readfield.F can now read files visible only to master MPI process.
2177    o pkg/seaice: some test code for ice-modified ocean stress
2178    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2179      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2180      spurious negative numbers for precipitation and humidity.  Will cause
2181      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2182    o pkg/ctrl/
2183      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2184        May be enabled via doPackDiag
2185      *  introduce z-scaling of
2186         + gradient (doZscalePack) and
2187         + control (doZscaleUnpack)
2188    o pkg/mdsio/
2189      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2190      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2191    
2192    checkpoint57b_post
2193    o simplify options in diagnostics_fill arguments (remove weird combinations)
2194    o fix MNC coordinate variables so that they now contain per-face index
2195      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2196      general, EXCH2 grids are only aligned to a "local" coordinate system
2197    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2198    o Implement instantaneous output within pkg diagnostics:
2199      setting a negative frequency in data.diagnostics produces
2200     "snap-shot" output (as opposed to time-average if freq > 0)
2201    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2202      NOTE: change ptracer diagnostics name: use 2 characters to work with
2203            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2204    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2205      becomes the coordinate variable for the 'T' dimension
2206    o add CF-style coordinate variables to MNC
2207      - just a first cut:  numbers are meaningless on the cubesphere and
2208        missing along the T axis but otherwise it works!
2209    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2210    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2211    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2212      this is based directly on what the model compute, so that the content of
2213      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2214    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2215    o clean up build options files for SunOS, in particular
2216      - remove -traditional from xmakedepend
2217      - change -xarch=v9 to -xarch=native for f77
2218      - restore use of make (not gmake)
2219      - add CC=gcc if using g77
2220    o changes per discussion of AM, JMC, & EH3 today:
2221      - move redundant "grid" variables out of "state" -- in preparation of
2222        creating proper CF-style coordinate variables and in recognition
2223        that any/all grid variables can be easily copied (eg. w/NCO) from
2224        the grid files into any of the other NetCDF files
2225      - *always* output grid variables with MDSIO (this will eventually be
2226        changed)
2227      - output MNC grid file if useMNC is true
2228    o every instance of _END_MASTER() has been found and replaced with
2229      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2230      preprocessors
2231    o re-arrange diagnostics pkg initialisation:
2232     - allow each package to extend the available diagnostics list
2233     - add some checking and fix small problems (multi-threaded, ...)
2234     - new S/R diagnostics_fill (replace fill_diagnostics):
2235       look through the short list of active diag. (instead of the long list)
2236       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2237    
2238    checkpoint57a_post
2239    o this set of changes restores TAMC compatibility
2240      tested for global_ocean.90x40x15 adjoint on trough
2241      (what a pain)
2242    
2243    checkpoint57a_pre
2244    o some modifs in tools/build_options for sunos
2245    o call ctrl_pack for ctrl at end for optimcycle=0
2246    
2247    checkpoint57
2248    o add horizontal bi-harmonic viscosity for vertical velocity
2249      - new parameter viscA4W (defaults to viscA4)
2250      - affects only non-hydrostatic code
2251      - to be done: no-slip lateral boundary conditions
2252    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2253    o implement Implicit Vertical advection for pTracers
2254    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2255      (implemented also for implicit vertical diffusion & advection)
2256    o OBCS: extend application of tracer open boundary conditions
2257      to a strip beyond the boundary of width Olx/Oly
2258    o add call monitor to TAF set of required calls (flow directives)
2259      and include in natl_box_adjoint
2260    o untangle a few ifdefs related to cost, ctrl, autodiff
2261      untangel a few ALLOW_ECCO_OPTIMIZATION
2262    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2263      (theta2, salt2 in ecco_cost_weights)
2264    
2265    checkpoint56c_post
2266    o OBCS as control variables
2267      - update ctrl_ad_diff.list, obcs_ad_diff.list
2268      - remove balance of obcs controls from default
2269      - fix index bug nobcs in ctrl_init
2270      - fix dummy fields filen in ctrl_pack
2271      - add dummy weights for obcs
2272    o lsopt: comment out fort.94 output
2273    o optim:
2274      - remove unnecessary header files
2275      - adjusted namelists
2276      - add xerbla.F to Makefile
2277    o exf:
2278      - multiple modifications of exf_check_range
2279      - unit change in exf_init_runoff from [m/year] to [m/s]
2280    o mdsio:
2281      - i/o-vector change debugLevel from debLevA to debLevB
2282    
2283    checkpoint56b_post
2284    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2285      is called from DO_THE_MODEL_IO
2286      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2287      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2288      - clean up PTRACERS_WRITE_TIMEAVE a little
2289    o add another verification experiment that tests both the cfc-pkg and
2290      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2291      reactive tendencies treated inline with regular timestepping
2292    o testreport previously did a lousy job of comparing small numbers, so
2293      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2294      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2295      testreport.
2296    o ptracers_monitor: bug fix for MPI
2297    
2298    checkpoint56a_post
2299    o GCHEM: finish reorganizating the package
2300      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2301        (introduces another 3D-array for each passive tracer, but only if
2302        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2303        gchemTendency is not needed because the timestep is done separately)
2304      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2305      - GCHEM is now---more or less cleanly---separate from PTRACERS
2306      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2307        so clear to me how that should be done in a general way.
2308    o CFC: improve formatting of output in CFC_ATMOS
2309    o PTRACERS:
2310      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2311        that ALL experiments with ptracers enable can be checked. This makes
2312        GCHEM_MONITOR obsolete.
2313      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2314        monitorFreq
2315      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2316    o add PTRACERS (PTR0[1-5]) to testreport output
2317    o exf_check_range:
2318      * default changed to .TRUE.
2319      * will check values for niter0 if debLevA, every timestep if debLevB
2320      * STOP in exf_check_range if 'out of range'
2321      * range chosen generous to allow for potential extema
2322      TBD: a version with stricter range
2323           permitted range would be runtime parameters
2324  o GMredi:  o GMredi:
2325    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2326    - 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 2329  o GCHEM:
2329    - 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
2330      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2331    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2332      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2333        this flag is now only visible within GCHEM-pkg routines.
2334      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2335        be replaced by a 3D array that is computed before thermodynamics; for
2336        this, the tracer ID iTracer had to be included into the parameter list
2337        of ptracers_forcing
2338      - set up forward_step to call gchem_forcing, that will replace
2339        gchem_forcing_int in ptracers_forcing
2340      - cleaning up
2341  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
2342    
2343  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2556  o add two new packages
2556    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2557    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2558      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2559      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2560  o add offline package  o add offline package
2561  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2562    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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