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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1092 by jmc, Wed Apr 29 00:04:57 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 write_utils : change WRITE_1D_R8 to WRITE_1D_RL
8      and add 3 other S/R for other types (R4,R8,RS).
9      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
10    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
11     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
12     - reduce number of macro definitions (keep only those which are used);
13       can always call directly the corrresponding S/R if needed.
14     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
15       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
16     Fixed wrong type of arg in:
17       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
18       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
19     To fix: global_sum of var in common block is wrong (multi-threaded) in:
20       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
21     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
22    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi
23    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
24    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
25      edges are closed (zero depth); might happen with "blank tiles";
26      for now, disable if using OBCS.
27    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
28      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
29    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
30      to reduce length of 1.D array print in STDOUT.
31    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
32      + use 48 tiles (16x8): this will allow to test "blank tiles".
33    o start to test MPI + multi-threaded (change testreport to skip tests
34      where number of tiles do not match).
35    o genmake2: add option "-omp" to turn on Open-MP ;
36      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
37    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
38      and keep the original tile numbering. Note: compatible with old
39      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
40    
41    checkpoint61l
42    o Overlaps had been forgotten in calculating ijk keys : fixed
43    o fix cyrus makedepend for gcc 4.4
44    o experiment fizhi-cs-aqualev20:
45      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
46      and generate new output. Note: new output is much closer to the old
47      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
48      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
49    o pkg/fizhi:
50     - change to avoid indices going deliberately over array-bounds
51     - remove unnecessary MPI stuff
52     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
53     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
54       does not go over array-bounds and therefore returns reliable output.
55     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
56       this S/R has 4 output arguments, which are used inside "get_alarm";
57       when it is called with the same variable "ndum" in place of several
58       output arguments, this produces weird side effect inside "get_alarm"
59      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
60       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
61       address) and produces error.
62    o tools/gemake2: (March 27-29 2009)
63      with option "-mpi": link *_mpi files from "MODS" dir (this is what
64      testreport does).
65    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
66    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
67       update lab_sea.lsr & lab_sea.salt_plume results
68    o pkg/seaice:
69      Major overhaul of the LSOR solver: change discretization from original
70      finite differences to finite volume. The old routine is still in the
71      file seaice_lsr.F and can be turned on with the CPP-flag
72      SEAICE_OLD_AND_BAD_DISCRETIZATION
73      Along with this change, the discretization of the strain rates is changed.
74      The same flag turns on the old discretization in seaice_calc_strainrates.F
75      All verification experiments with seaice are affected (except for
76      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
77      results by setting the above flag.
78      Further changes involve changes in defaults:
79      - ALLOW_FLOODING is defined and turned on by default
80      - SEAICEadvSnow = .true. is now the default
81      - SEAICEadvSalt = .true. is now the default
82      - SEAICEadvAge  = .true. is now the default
83      - SEAICE_clipVelocities  = .false. is now the default
84                                         (as per J. Zhang's recommendation)
85      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
86        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
87      - seaice_growth: replace computation of UG by a simple copy from wspeed
88    
89    checkpoint61k
90    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
91      seaice_lsr: fixed a few metric terms,
92                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
93                  add more debugging diagnostics
94      seaice_evp: removed superfluous many metric terms of FV discretization
95                  of stress divergence
96                  affects lab_sea, lab_sea.hb87
97      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
98                  of stress divergence for non-evp solver
99                  (this part is not tested anywhere)
100      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
101                  they were effectively only half slip
102                  affects lab_sea.hb87
103      updated all relevant verification experiments (except lab_sea//output_adm.txt
104        which was left over, but fails at level 7 & 6)
105    
106    checkpoint61j
107    o pkg/seaice: turn a few hard wired parameters into run time parameters
108    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
109      time in seconds as promised by the usints in seaice_monitor and exf_monitor
110    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
111      that are not cubed-sphere grids
112    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
113    o pkg/ctrl:
114      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
115    o non-hydrostatic (calc_gw.F):
116      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
117      update output of exp. global_ocean.cs32x15.viscA4
118    o remove backward compatibility for thetaMin,phiMin
119      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
120    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
121      interpolated wind field not only for curvilineargrid=.true., but also
122      for a rotated grid (rotateGrid=.true.)
123    o pkg/exf: add capability to bypass interpolation for runoff
124      by setting yet another CPP-flag
125    o eesupp/src, B-grid exchange:
126      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
127    o autodiff
128      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
129      allows to switch to single-prec common blocks;
130      corresponding switch occurs in tamc.h, integer isbyte
131      TAF store directivs "byte" and "kind" seem equivalent;
132      Most tamc.h have been updated correspondingly.
133    
134    checkpoint61i
135    o autodiff:
136      fix autodiff_sore/_restore indices for obcs
137      (spotted by I. Hoteit, M. Mazloff)
138    o pkg/autodiff, pkg/ctrl:
139      Add flag to reduce all tapelev I/O to single-prec.
140      In data.ctrl set
141        doSinglePrecTapelev = .TRUE.
142    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
143      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
144    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
145      real fresh water flux (not yet)
146    o pkg/mdsio & rw:
147     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
148     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
149    o pkg/flt:
150     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
151       init_fixed & ini_varia.
152     - clean-up & simplify linear interpolation S/R:
153       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
154     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
155     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
156     - add vert. coordinate & horiz. indices to output files.
157     - change vertical position in initial condition, from index to depth [m].
158     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
159       (easier to get to a curvilinear grid) ; delX,delY no longer used.
160    o pkg/ggl90: a few modifications:
161     - fix bottom boundary condition, and interpolation of KappaE
162       near top and bottom
163     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
164     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
165     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
166    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
167      (maintain temporary backward compatibility, until next checkpoint)
168    
169    checkpoint61h
170    o pkg/diagnostics with "periodic averaging diagnostics":
171      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
172    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
173    o pkg/obcs: fix loop ranges for balancing code
174    o pkg/flt:
175     - improve criteria for finding which tile owns a float.
176     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
177    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
178      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
179      with ocean biogeo)
180    o pkg/flt:
181     - do some cleaning and fix the restart ;
182     - add output.txt in flt_example/results to get this pkg tested.
183    o genmake2: add an EXTENDED_SRC option and flag.
184       for now, cannot be turned on on command line (only through genmake_local)
185    o pkg/mdsio: read/write vector:
186     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
187     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
188       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
189     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
190      (drop to 4 digits matching for grad). But this test does not look very
191      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
192    
193    checkpoint61g
194    o pkg/flt:
195      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
196       + make OPTIONS file more standard.
197      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
198      - fix _BYTESWAPIO CPP-Flag
199      - standard reading of file-parameter "data.flt"
200      - fix argument list of S/R FLT_RESTART
201      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
202    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
203    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
204      a still unfixed compiler/optimization bug
205    
206    checkpoint61f
207    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
208      update results of global_ocean.cs32x15.icedyn test.
209    o move getcon.F from model/src to pkg/fizhi.
210    o pkg/exf: add parameter for extrapolation of temp up to the surface
211       and option to prevent negative evap (in bulk_largeyeager04 only).
212    o Prather Advection scheme: fix tracer conservation for divergent flow
213      (e.g., when using NonLin Free-Surface).
214    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
215    o gmredi (Visbeck-variable-K):
216     - add more parameters to Visbeck-variable-K.
217     - use a 5 points average for dSigmaR in Visbeck-K calculation
218       (more "homogenous": same stencil and same weights as in dSigmaH)
219     - update output of ideal_2D_oce experiment.
220    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
221      (#undef REAL4_IS_SLOW)
222     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
223       coordinate variable
224     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
225       (surface forcing fields), removes some of the functionality
226     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
227     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
228       probably not all: copy _RS surface flux fields to RL field before
229       calling DIAGNOSTICS_FILL
230     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
231       real*4 (CALL EXCH_*_RS) versions.
232     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
233       (generate new output).
234    
235    checkpoint61e
236    o gmredi (Visbeck-variable-K):
237      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
238      - change computation of Visbeck-K where Slope > Smax :        
239        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
240        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
241    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
242      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
243    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
244    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
245      does not become too large (to avoid precision problems in implicit-diffusion
246      solver); update ideal_2D_oce output.
247    o pkg ggl90:
248      - in ggl90_cal.F: compute only one set of visc/diff, used to
249        step forward TKE/T/S/momentum
250      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
251        have Prandlt =1)
252    o gmredi (fm07):
253      - add lower limit on Transition layer thickness + lower limit on 1/lambda
254      - allow to set few more params from data.gmredi
255    o pkg ggl90:
256          - add missing sqrt(2) factor in computation of mixing length
257            scale in ggl90_calc.F
258            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
259    
260    checkpoint61d
261    o adjoint modifs
262      - adapt to new field rhoInSitu
263      - allow to revert from StoreDynVars2D, StoreDynVars3D
264        to individual fields
265        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
266    o store 3-D (in-situ) density in commom block (DYNVARS.h)
267     - save 1 rho computation.
268     - no longer modify T & S inland when using down_slope pkg.
269    o gad_som : allow to switch to SOM advection for T & S without corresponding
270      pickup files (using new S/R: MDS_CHECK4FILE).
271    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
272      (for useSingleCpuIO to work in multi-threaded)
273    o pkg/shelfice:
274     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
275       with SHELFICEtopoFile in data.shelfice
276     - move code for reading ice shelf topography and modifying hFacC into separate
277       subroutines of the shelfice package
278     - separate initialisation of "fixed" and "variable" variables
279     - kTopC is not (yet) replaced by kSurfC, although this is possible
280    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
281    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
282      and rename:
283      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
284      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
285    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
286    
287    checkpoint61c
288    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
289      to add mass source/sink of fluid in the interior (3-D generalisation
290      of oceanic real-fresh water flux).
291    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
292    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
293    o new pkg: down_slope
294      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
295      - presently, modify T & S inland (dwnslp_calc_rho.F).
296        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
297      - implementation for ocean in P-coords not tested.
298      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
299    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
300      (to facilitate conversion of oceanic pkg to p-coordinate).
301    o change FIND_RHO to FIND_RHO_2D :
302      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
303    o new pkg: cheapaml
304    
305    checkpoint61b
306    o exch2:
307      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
308      - no longer depend on the order sequence (N,S,E,W).
309      - 3rd exchange no longer needed (tested with 24 tiles).
310      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
311      - exch_UV_A-grid readily available (but not yet tested).
312      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
313      (both are no longer needed) in exch_uv: no effect in forward run; but
314       get truncation error differences with adjoint exch.
315    o exch2:
316     - change index-bounds storage (moved from target to local tile,
317       more intuitive this way) ; rename/remove some variables.
318     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
319    
320    checkpoint61a
321    o exch2/matlab-topology-generator:
322      fix bug in index bounds for N-S internal exchange (hard to tell if this
323      had any effect on the solution).
324    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
325      is exceeded
326    o testreport: modify syntax of awk, so that it works also with
327      awk, and not only with nawk and gawk
328    
329    checkpoint61
330    o autodiff
331      Change default for TAF usage by removing argument '-nonew_arg'
332      This changes TAF subroutine argument list (ordering of active var.)
333      Omission of this flag leads to incompatibility w.r.t. TAMC
334      To restore TAMC-compatibility, need following modifs:
335      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
336      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
337      Tested TAF version is 1.9.22
338      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
339    
340    checkpoint60
341    --->>> This is the last checkpoint for which generating the adjoint
342    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
343    --->>> by default.
344    --->>> Future checkpoints will ommit this flag by default.
345    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
346    o pkg/grdchk: Add gradient check to etan0 perturbations.
347    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
348    o pkg/autodiff: more flexibility in zeroadj.
349      model/src: modifying do_oceanic_phys.F accordingly.
350    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
351    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
352      special setup of gmredi for which the adjoint is stable
353      enough for parameter optimization.
354    o bridging the gap between eddy stress and GM.
355      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
356          along with a change in CPP option (now ALLOW_EDDYPSI).
357      -> when using GM w/ GM_AdvForm:
358          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
359          is applied either in the tracer Eq. or in momentum Eq.
360          depending on data.gmredi (intro. GM_InMomAsStress).
361      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
362      The key modifications are in model/src/taueddy_external_forcing.F
363      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
364    
365    checkpoint59r
366    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
367      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
368      fix option to read coriolis(@ cell-corner) from files with CS-grid.
369    o pkg/mnc: add some attributes to standard 1D-coordinate variables
370    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
371      mass points, when using mnc for output
372      - add runtime parameter (missing_value, missing_value_int) to override
373        default (which is the value of getcon('UNDEF'))
374    o pkg/mnc: prepare mnc for the actual use of missing values with the
375      diagnostics package: small fix in mnc_cw_readwrite.template and more
376      initialisation of never used fields
377      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
378      versions
379    o pkg/thsice/thsice_ini_vars.F added default initial values so that
380      thermodynamics sea ice solver does not blow up when some initial fields
381      are missing.
382    o move from external_forcing_surf.F to ini_forcing.F
383      the p-coord. hack consisting in using pLoad to set phi0surf ;
384      update output of tutorial_global_oce_in_p (affected @ truncation level).
385    o Freshen up a bit hs94.1x64x5, notably:
386      remove rotationPeriod and tRef=5*0. (adjoint only), and add
387      exactConserv=.TRUE.
388    o pkg/generic_advdiff:
389      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
390      applies to files where Temperature & Salinity 2nd Order moments are used.
391    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
392      this uses a dynamically allocated internal state data structure
393      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
394      and requires a fortran 90 compiler
395    
396    checkpoint59q
397    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
398       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
399    o Refresh tutorial_global_oce_biogeo, notably:
400      - change bathymetry (put back seamounts in ACC, use hFacs)
401      - change EOS (POLY3 --> JMD95Z)
402      - use Bryan-Lewis vertical diffusivity
403      - use multidimensional advection
404      - remove old virtual virtual in dic pkg, now done through ptracer pkg
405      - change a couple of parameters in dic pkg
406    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
407    o pkg/obcs: change default to OBCSfixTopo = .true.,
408      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
409      - replace "debugMode" with "debugLevel .GE. debLevB"
410    o implementation of TAF directives for gchem,cfc,dic
411    o remove "exp5" (replaced by tutorial_deep_convection).
412    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
413      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
414      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
415      --> changes results in exp4, seaice_obcs
416    o tutorial_deep_convection :
417      update the set-up and increase resolution and domain size ; start
418      from pseudo initial conditions = output at t=120mn in order to see
419      something happening when running testreport.
420    o pkg/seaice: add os7mp as an advection scheme
421                  add check for advection schemes
422                  add a flag for restoring T and S underneath sea ice
423    o pkg/my82: add netcdf-support and diagnostics
424    o thsice pkg:
425      - Now hsMax limits snow height by turning it into ice following
426        flooding scheme (and now conserving energy)
427      - Slight rewriting of the formula in thsice_calc_thick.F
428      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
429      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
430    
431    checkpoint59p
432    o gchem / dic / cfc :
433      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
434      - add new parameter files: "data.dic" & "data.cfc" ;
435      - various re-arrangement in initialisation & header file ;
436      - fix tutorial_global_oce_biogeo for multi-threaded test.
437    o pkg/dic: test for "pickup_dic" file when restarting ;
438      if no pickup-file, can restart with a re-initialised pH (same as it did
439      before) providing pickupStrictlyMatch is set to False.
440    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
441      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
442    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
443      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
444    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
445     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
446       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
447    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
448       scheme to use for vorticty-term ;
449     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
450       (with default selectVortScheme, return to original discretisation)
451     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
452    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
453    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
454      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
455      also fix diagnostics VISCAHW & VISCA4W.
456    
457    checkpoint59o
458    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
459    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
460      move a few statemens out the main loop into separate loops
461    o pkg/shelfice:
462      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
463        (kg/m^2/s), does not break tests, because in verification/isomip,
464        rhoConstFresh=rhoConst (by accident)
465      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
466      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
467        new file model/src/seawater.F, so that they are available for all pkgs.
468      - convert potential temperature into in-situ temperature. This changes the
469        isomip tests => update tests
470    o add a flag writePickupAtEnd (default=true) to be able to suppress
471      writing a pickup at the last timestep
472    o tools/mpack-1.6 :
473      - disable automake (not working) and autoconf (not needed).
474      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
475        also cleaner with much less compilation warnings.
476    o pkg/profiles:
477      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
478      (for "less than 32 characters name" compiler requirement)
479    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
480      conditions that have a different sampling frequency than S/T/U/V obcs
481    o pkg/diagnostics (stats-diags):
482      - fix global Min/Max in case 1 processor get only empty tiles
483    o genmake2: replace (4 times)
484         make genmake_tc_1.o >> genmake_warnings 2>&1
485      with
486         COMM="$CC $CFLAGS -c genmake_tc_1.c"
487         echo $COMM >> genmake_warnings
488         $COMM >> genmake_warnings 2>&1
489      to make genmake2 always see the value of CC as specified in the optfile.
490    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
491      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
492      - modify verification advect_cs test to test SOM-advection on CS-grid.
493    o pkg/ctrl:
494      - Rewrite of ctrl_map_ini_ecco.F,
495        introducing a generic routine (ctrl_map_ini_gen.F).
496      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
497    
498    checkpoint59n
499    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
500      number in dedicate array "hdiag":
501      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
502        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
503      - many small changes (integer format) for large number of diagnostics
504      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
505        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
506    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
507      usingSphericalGrid, this allows to define the rotated grid coordinates
508      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
509      geographical coordinates according to the inverse of the rotation defined
510      by the Euler angles, so that Coriolis parameter and online-interpolation by
511      exf works with the geographical coordinates on XC/YC/XG/YG.
512      Naturally, this feature does not work with all packages, so some
513      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
514      profiles), because there the coordinates are assumed to be regular
515      spherical grid coordinates.
516    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
517      - introduce isopycnal diffusion coefficient control.
518    o tools/adjoint_options:
519      - additional control vector components.
520    o pkg/mnc: have mnc create marginally meaning full coordinate variables
521      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
522    o pkg/mypackage:
523      - add example of read/write pickup for state-var ;
524      - add entry points to the main code for state-vars diags & write-pickup.
525    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
526      transitions for useExfYearlyFields
527      - add new subroutine that determines the file to read from for
528        use*YearlyFields = .TRUE. and .FALSE.
529      - add a verification experiment to global_with_exf that tests
530        useExfYearlyFields with USE_EXF_INTERPOLATION defined
531    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
532      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
533      subroutines (which could be generated from a template, because they are
534      almost identical), for now they are included in obcs_prescribe_read.F for
535      simplicity
536    o pkg/exf:
537      - add a little more diagnostic to exf_interp_read (in analogy to
538        mds_read_field, can be turned off with debugLevel < debugLevA=1)
539      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
540        ugly but fast by unrolling short inner loops, inserting a unroll=8
541        directive in routine lagran, and splitting a loop and making do while the
542        outermost loop (the latter requires the intoduction of index arrays)
543    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
544    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
545      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
546    o verification/seaice_obcs: updated for restart test and latest options
547    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
548      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
549      for now this is only available for the C-grid code and also within
550      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
551    
552    checkpoint59m
553    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
554      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
555    o gad_som : fix flux output (& diagnostics) to have same units as other  
556      advection scheme fluxes (was previously multiplied by deltaT).  
557    o added verification/seaice_obcs both to test seaice open boundaries
558      and to provide an example matlab scrpt for generating them
559    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
560    o pkg/salt_plume: clean up salt_plume_frac.F to
561      remove redundancy in PlumeMethod 1 and 4
562    o pkg/kpp: added saltplume diagnostics
563    o pkg/obcs and pkg/seaice:
564      - do not set uice and vice to zero when OB*icefile are unspecified
565      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
566      - moved seaice tracer obcs after call to seaice_growth
567    o pkg/salt_plume: added various options for salt plume depth
568      criterion and for vertical distribution of the salt
569    
570    checkpoint59l
571    o pkg/ptracers: new version of ptracers pickup:
572      read meta file and write only fields which are needed to restart.
573      ( same logic as main pickup file ; also using pickupStrictlyMatch )
574    o pkg/seaice:
575      - add timescale for melting due to warm mixed layer as a means of
576        setting SEAICE_availHeatFrac more conveniently
577      - add a CPP-flag/runtime parameter check for flooding algorithm
578      - reformulated availHeat in seaice_growth.F to be independent of AREA
579    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
580      unit changes
581    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
582    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
583      SX vector computer.
584    o pkg/seaice:
585      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
586        seaice forcing fields can now be read only through pkg/exf
587      - removed some unused halos
588    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
589    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
590      or U/VICE from U/VWIND before computing U/VSTRESS
591    
592    checkpoint59k
593    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
594      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
595    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
596      all experiments pass when compile with un-initialised var. checking option.
597    o added pkg/salt_plume
598    o script to test restart (for now, in MITgcm_contrib/jmc_script)
599    o pkg/seaice: new read/write pickup version.
600      read meta file and write only fields which are needed to restart.
601      ( same logic as main pickup file ; also using pickupStrictlyMatch )
602    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
603    o lab_sea.hb87: modify the domain & update output.hb87.txt :
604      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
605      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
606      process. Fixed here by closing the domain at the Northern boundary.
607    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
608    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
609      a set of consecutive levels in/from a 3-D array.
610    o pkg/ptracers:
611      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
612      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
613    
614    checkpoint59j
615    o in pkgs: dic, obcs, offline, rbcs:
616      standard way to compute coeff. for time interpolation between 2 time reccords
617      which retains full precision (& make results less dependent on compiler).
618      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
619    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
620      packages instead of reading ice cover and wind speed separately
621    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
622     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
623      to allow to compile customized code before the update)
624    o cleaning-up:
625      - fix CPP instruction syntax in pkg/obcs
626      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
627        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
628      - fix some threads issue in IO parts.
629    o pkg/dic:
630      - add tons of "_d 0" (--> much better testreports !)
631       and then update outputs of tutorial_global_oce_biogeo
632    o pkg/mom_fluxform:
633      add a special version of momentum advection intended to conserve momentum
634      next to a bathymetry step or a coastline edge. (default = off = #undef)
635    o new read/write pickup version:
636      - for now, only implemented for main (mdsio) pickup file.
637      - write out only what is needed to restart; merge pickup_nh , pickup_ph
638        and main pickup together.
639      - read meta file; read only what is needed to restart; stop if a field
640        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
641        if it make sense (even if the restart is not perfect).
642      - if no meta file, assume that pickup to read corresponds exactly to
643        a pickup that would currently be written.
644      - read pickup written in the old format (until checkpoint59i) if it
645        recognizes an old meta file (no field-list).
646      - add a meta file in exp. which starts from a pickup: 2 cases:
647        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
648         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
649        b) a meta file describing the content of the associated pickup file
650         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
651    o pkg/mdsio & pkg/rw:
652      - new routine to read a meta file ; new set of routine to read
653        Multiple-fields file (with meta file).
654    o added open boundary conditions capability for seaice
655        HSNOW, HSALT, UICE, and VICE
656    
657    checkpoint59i
658    o adjoint:
659      * fix multiDimAdvection adjoint
660        (partial recomputation problem by TAF for fVerT(:,:,kDown)
661        and comlev1 size definition (maxpass vs. max. number of tracers)
662      * verification/global_ocean.90x45x15 adjoint now tests
663        NLFS and multiDimAdvection using DST3 (=30)
664      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
665    o pkg/kpp: add "_d 0" to real constant (if missing);
666      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
667      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
668    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
669      for internal parameters related to restart process (formerly from PARAMS.h)
670      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
671    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
672      as argument. (only atm2d & obcs write_pickup have not yet been updated)
673    o pkg/monitor:
674      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
675      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
676      - account for deep Atmosphere factor and density factor (anelastic)
677    o added open boundary conditions capability for seaice HEFF and AREA
678    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
679      thermodynamics
680      - requires a little reorganization, which affects the testreport results
681        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
682        so that now the conservative form is tested
683      - add a few comments
684    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
685    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
686    o add new diagnostics to seaice: advective, diffusive fluxes (only for
687      multidim-advection, for scheme 2 they are not filled) and transports,
688      thermodynamic growth rates
689    o change units of EmPmR (inside the code, + within coupling interface)
690      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
691      Affects results @ truncation level (cg2d match) and update output of
692       experiments: lab_sea(6), global_ocean.90x40x15(10),
693      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
694      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
695      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
696      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
697    
698    checkpoint59h
699    o pkg/exf:
700      - improve vectorization by moving if-statement out of loops in
701        exf_mapfields, exf_radiation
702      - exf_bulkformulae.F: introduce 2D fields and vectorize code
703    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
704    o testreport:
705      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
706        monitor & update offline_exf_seaice exp. output.
707      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
708    o pkg/seaice:
709      - bug fix in the evp solver: boundary conditions were affected be
710        masking of zMax/zMin (changes results)
711      - minor bug fix in boundary conditions in seaice_calc_strainrates
712        (changes results for no_slip)
713      - seaice_lsr.F: make interpolation of eta dependent on boundaries
714      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
715      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
716        stress formulation and no-slip boundary conditions
717    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
718      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
719    o pkg/seaice: a first HSALT time stepping equation has been checked in
720    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
721      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
722      without requiring DO-IF statements
723    o pkg/thsice:
724      use continuous power-law function for partition of energy between lateral
725      melting/freezing and thinning/thickening ; old code using step function
726      still available with #undef THSICE_FRACEN_POWERLAW
727      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
728    o testreport: change AD testing : check against results/output_adm.txt
729      using same scripts as for forward test.
730    
731    checkpoint59g
732    o adjoint testing: in preparation for changing testreport:
733      - output format: cost and grad written on separated lines
734      - ad output results in directory "results" (instead of "results_ad")
735    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
736    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
737    o pkg/ecco: allow user defined cost function contributions
738    o testreport:
739      Allow to choose (per experiment) the list of tested output variables
740       and the main variable (used to issue a pass/FAIL ) ;
741      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
742      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
743      Also modify printing of summary:
744       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
745       b) echo the list of tested variables in the individual summary.txt of
746          each experiment.
747    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
748      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
749      (but still depend on the tile decompostion of the domain).
750    o pkg/seaice: change a discretization detail to make the B-grid code
751      "more symmetric". This change is likely to remove all "ridges/leads" that
752      where quasi-aligned with the grid in B-grid solutions. It may also be
753      the solution to the stress coupling issues with the B-grid.
754    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
755      remove .cvsignore from input dir. (since testreport no longer run here).
756    o pkg/thsice:
757     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
758     - fix reshaping of sea-ice just after advection:
759       melt all the ice only if ice-volume is too small.
760     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
761       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
762     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
763    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
764      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
765    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
766      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
767      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
768      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
769      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
770      -> update output.txt
771    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
772     this affects truncation error: -> update output.txt of exp:
773      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
774      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
775    
776    checkpoint59f
777    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
778    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
779      a bounded range (in forward mode)
780    o pkg/ecco, ctrl, autodiff and mom_common:
781     internal parameter controls, completements of implementations
782    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
783    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
784      (not seem any difference in testing results).
785    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
786       at face corners.
787    o pkg/generic_advdiff:
788     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
789      loop range indices for computing vertical advection tendency
790      and do the calculation in the interior only (no overlap) ;
791      for now, only implemented for SOM advection (to save CPU time).
792     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
793    o exch2 adjoint
794      First set of changes:
795      - add exch2 hand-written adjoint templates
796      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
797        This will require cleanup in pkg/autodiff/*.F
798        (changed routines currently kept separate in verif. code/)
799      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
800        that used to hide exch2 or cubed-sphere specific code
801        (commented via 'cph-exch2')
802    o pkg/seaice
803      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
804    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
805       output of global_ocean.cs32x15.thsice .
806    
807    checkpoint59e
808    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
809      for B-grid vector (not yet tested) and C-grid vector (<- only used
810      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
811    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
812      (#ifdef ALLOW_SALT_PLUME)
813    o gather_2d/scatter_2d: removed halo regions
814    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
815      scheme and the corresponding test case (under front_relax dir). For now,
816      only available with Skew-flux form and not yet tested in realistic set-up.
817      adjoint: store directives updated, but gradient checks deteriorated,
818      so maybe GM/Redi adjoint is now broken.
819    o seaice adjoint
820      * add AREA, HEFF, HSNOW as control variable
821        (should not change lab_sea results)
822      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
823    o pkg/seaice:
824      * added computation of saltFlux in seaice_growth;
825        For time being, sea ice salinity is assumed constant
826        contribution of snow flooding to freshening of sea ice is neglected.
827        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
828        defaults to 0.0 in order to maintain backward compatibility.
829        Typical values for SEAICE_salinity are 4 to 10 g/kg.
830      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
831      * added SEAICE_availHeatFrac, which specifies fraction of surface level
832        heat content used to melt or grow ice
833      * commented out cap of HICE: it helps keep ice thinner
834      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
835      * applied OBCS T/S mask to HEFFM sea ice mask
836    
837    checkpoint59d
838    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
839     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
840     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
841    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
842     and change default value of parameter "GM_Small_Number";
843     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
844       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
845       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
846    o pkg/ecco: cost function when applying pkg/smooth to controls
847    o pkg/ctrl: add forcingPrecond run time parameter
848    o pkg/seaice:
849     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
850     - fix bug in metric terms of u-equation in LSR solver (implicit part),
851       changes verification/lab_sea
852     - rearrange implicit part of u-equation in LSR solver to make it easier to
853       read, understand, and debug. This causes changes at the truncation level.
854     - fix (serious) bug in the boundary conditions (sign error in the implicit
855       part) of the LSR solver. Changes all LSR results.
856     - fixed problem with HSNOW initialization to avoid thick snow when AREA
857       is initilized with small values - does not change lab_sea results.
858     - added HsnowFile initialization capability
859    o pkg/smooth: addition to model/src and pkg/ctrl so allow
860     initialization of pkg/smooth and application to control vector
861    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
862    o dependencies: pkg/profiles requires pkg/cal
863    o pkg/profiles:
864     - added option ALLOW_PROFILES_GENERICGRID
865         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
866         that interpolation information (grid points and coefficients) is provided
867         within the netcdf input files.
868         -> sample matlab scripts can be found in MITgcm_contrib/gael
869         that allow you to prepare netcdf input files.
870     - also modified: cleaner include statements, cleaner error print statements,
871       cleaner stops when error, and more tests of the netcdf input files consistency.
872    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
873    o pkg/seaice:
874     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
875       requires a new routine: seaice_diagnostics_fill.F
876     - make sure that seaice does not move if not forced (pressure replacement
877       method, Hibler and Ip, 1995), changes results
878     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
879     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
880       It is turned off by default (=-1.), because it changes the results.
881     - make it possible to read AREA from a file, too.
882    
883    checkpoint59c
884    o add S/R and diagnostics for oceanic mixed-layer depth
885    o move GMRedi call after all vertical mixing schemes (including KPP)
886    o pkg/thsice:
887     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
888      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
889    o pkg/obcs:
890     - bug fix for balance code
891    o pkg/seaice:
892      - allow values of SEAICE_elasticParm > 1
893      - add new parameter SEAICE_evpTauRelax as an alternative
894        to SEAICE_elasticParm
895      - make lsr boundary conditions free slip (by default), changes result
896      - add code for no slip boundary conditions for lsr
897      - set minimum of zeta to zero (and not 4e8) (changes results)
898      - add a cap on AREA after advecting AREA if seaice_growth is not called
899    o change calculation of Visbeck K:
900      - no longer depend on tapering scheme; instead, compute slope (limited
901        by GM_maxSlope). this is equivalent to what was comuted before with
902        clipping or linear tappering.
903      - fix vertical averaging (wrong by 1/2 level)
904      - leave the old version (but will not be maintained) within
905        #ifdef OLD_VISBECK_CALC / #endif
906      - update output of exp. ideal_2D_oce
907    o change error catch in calc_r_star to improve vectorization
908    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
909      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
910    o adjoint:
911      Re-organized adjoint checkpointing according to Matt Mazloff
912      (but with modifs/completions/cleanups)
913      Storing is now bundled into large arrays to optimized I/O
914      (and second step in cleanup of the_main_loop)
915    
916    checkpoint59b
917    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
918      - export/import (between ocean & coupler) fields needed for ocean DIC.
919    o pkg/seaice:
920      - get rid of three more exchanges seaice_calc_viscosities (required
921        different loop boundaries in seaice_lsr and seaice_ocean_stress)
922      - bug fix in seaice_ocean_stress (update of lab_sea required)
923      - reduce loop boundaries to necessary minimum also in seaice_evp
924      - go back to the old way of computing deltaC/Z as the adjoint likes that
925        better
926    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
927      passive tracer to an Age Tracer) + update output.txt
928    o pkg/exf:
929      - implement A-grid / C-grid selection for wind-stress input files.
930      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
931      for now, in exf_bulk_largeyeager04.F only :
932      - change implementation for case where windspeed + 2. components wind-stress
933        are read-in. AND use rhoConstFresh to convert evap.
934    o pkg/seaice:
935      - use correct EXCH_UV for wind-forcing (on A-grid).
936      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
937        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
938    o pkg/exf:
939      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
940      EXF_INTERPOLATION:
941      - merge global_with_exf/code version of exf_interp_read.F
942        to the main code ;
943      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
944        reading the file ; Important: This options needs to be defined to recover
945        previous code.
946        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
947      - no longer loose real*8 precision along the way when using exf_iprec=64.
948    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
949      - change discretisation of evp-solver in order to avoid another exchange
950        (changes lab_sea) and clean up a little
951      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
952        help the adjoint (this also changes the results slightly)
953      - add a few "_d 0" where they had been missing in seaice_evp.F
954      - cleaning up: remove unused seaice_calc_rhs.F
955    o pkg/exf: some cleaning-up:
956      - change various "constants" into runtime parameters
957      - cleaned-up Large&Yeager04 routine which should eventually
958        replace exf_bulkformulae.F (changed names of S/R and CPP)
959        and merged various ALLOW_ATM_WIND options
960     only used with thsice pkg (in thsice_get_exf.F):
961      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
962        which are used when useStabilityFct_overIce=TRUE (= the default)
963      - change default values of ice & snow emissivity and scale downward LW
964        by ice & snow emissivity.
965    o pkg/thsice:
966     fix few little problems, in thsice_calc_thickn.F:
967      - growth vertically (and not laterally) if iceFrac == iceMaskMax
968      - melt only laterally if hIce < hThinIce (as the comments say)
969      and in thsice_extend.F:
970      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
971      - start to form ice as soon as the minimum ice-volume is reachable.
972     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
973      and cpl_aim+ocn
974    o pkg/kpp
975     - move computation of surface related input fields to KPP into a new
976       subroutine kpp_forcing_surf.F
977     - remove wrong (within bi,bj loops) EXCH calls.
978     - little cleaning (add argument myThid in last position, cvs header ...)
979     - for now, fix conservation problem by exchanging KPPviscAz (may not
980       be the best fix)
981    o pkg/seaice
982     - check for inconsistent evp parameter/cpp-flag combination
983     - remove leftover errIO flat for obsolete name list error handling
984    o OpenAD
985     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
986    
987    checkpoint59a
988    o pkg/seaice: some parameter clarifications and a little bit of clean up
989    o pkg/thsice: rename run-time parameters:
990       himin       -> hIceMin
991       himin0      -> hThinIce
992       hihig       -> hThickIce
993       i0          -> i0swFrac
994       transCoef   -> bMeltCoef
995       frac_energy -> fracMelting
996      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
997       with default values (for now) that do not change the results.
998      remove old version of thsice vars advection in pkg/seaice.
999    o in FFIELDS.h:
1000      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1001      - make pLoad & sIceLoad always available (but still only used if
1002         ATMOSPHERIC_LOADING is #define).
1003    o pkg/kpp: replaced _KPP_RL with _RL
1004    o bug fixes for vertical diffusivity computations when both KPP and
1005        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1006        are no longer updating the vertical diffusivity array
1007        (passed as argument) but are (re-) setting those arrays.
1008    o pkg/seaice: fix bug in evp solver, while doing that
1009      - change (improve?) discretization of stress computations for both
1010        cgrid-lsr and evp solver
1011      - add a new routine to compute strain rates
1012      - the above changes lab_sea results
1013      - add no slip conditions for evp solver (off by default), lsr-version
1014        may follow
1015      - fix exchange for shear at Z-points (does not change lab_sea)
1016      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1017        (to force the user to pick a time step since there is not "safe" way
1018        of choosing it)
1019      - add principal stress diagnostics
1020      - rearrange fields for evp a little to avoid having to call a: too many
1021        exchanges and b: exchanges for stress trensor components which we do
1022        not have.
1023      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1024        of evp, complete rewrite for lsr case (latter is does not yet work
1025        in all cases)
1026    o pkg/kpp: add code to have mixing in shelf ice caverns
1027      - add myThid to all kpp routines (long overdue)
1028    
1029    checkpoint59
1030    o pkg/exf:
1031      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1032        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1033      - move exf header files from lower_case.h to UPPER_CASE.h ;
1034        add missing cvs Header & Name
1035      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1036      - add namelist param. selectStressGridPosition, exf_monFreq
1037      - retire many _CLIM routines, and remove data.exf_clim
1038        + params moved to data.exf
1039        + climsst, climsss now handled by exf_set_gen, i.e.
1040          climss?period=0 refers to constant field,
1041          climss?period=-12 to monthly forcing
1042      - split up namelists in data.exf
1043    o pkg/seaice:
1044      - remove seaice_exch and seaice_exch_uv
1045      - remove superfluous exchange of theta
1046      - add myThid to seaice_budget_ocean/ice
1047      - add new interface for atmospheric wind forcing (C-grid only)
1048        + new routine
1049        + two new field (taux, tauy for stress over ice)
1050        + removed one global field (DAIRN) for C-grid case only
1051    o pkg/thsise
1052      - 2nd set of modifs for thsice adjoint in conjunction with exf
1053    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1054    
1055    checkpoint58y_post
1056    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1057      vertical diffusivity, similar to that in MOM4; turned on using
1058      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1059      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1060    o Added capability for 3D specification of background vertical diffusion
1061      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1062      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1063      "data" file that contains the 3D vertical diffusivity coefficients.
1064    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1065      - add code within pkg thsice to advect & diffuse sea-ice fields
1066      similar to (and will replace) what has been added in  seaice_advdiff.F,
1067      but: - conserving Mass, Heat & Salt.
1068           - better when using non-linear advection scheme (not yet fully tested)
1069           - can also be used in atmospheric set-up (for now, only the diffusion).
1070    
1071    checkpoint58x_post
1072    o IO option for global-file compact format:
1073      - add options when generating topology (utils/exch2/matlab-topology-generator)
1074      - add I/O capability (pkg/mdsio).
1075      - adapt utils/matlab/rdmds.m to read this format.
1076      for now long-line format not yet supported by pkg/mdsio (& exch2).
1077    o shelfice: add a few diagnostics
1078    
1079    checkpoint58w_post
1080    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1081      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1082      (and replace horiVertRatio in NH code).
1083      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1084                         and tutorial_plume_on_slope (sensitive to truncation)
1085    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1086      directly to drive seaice model (C-grid only)
1087    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1088     - reintroduce computation of wind from stress,
1089     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1090       mass points to avoid tau = 0
1091     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1092    o rdmnc.m: make it work with "global" files created with gluemnc
1093    o rdmnc.m : some improvements in dealing with singleton dimension
1094      (tested on all testreport mnc output files).
1095    o genmake2: disable pkg/profiles if netcdf test fails.
1096    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1097    o move call to cal_readparms up to make calendar parameters/variable available
1098      to all packages
1099    
1100    checkpoint58v_post
1101    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1102      useDynP_inEos_Zc tested.
1103    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1104    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1105      and portions thereof.  See read_cs.txt for description and examples.
1106    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1107      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1108      following the great-circle arc between those 2 points.
1109    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1110      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1111    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1112     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1113     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1114     - still needs work (not working with some options ; efficiency to improve)
1115       and serious testing.
1116     - use this scheme for temperature & salinity in 2 advection test exp.:
1117       advect_xy & advect_xz, respectively.
1118    
1119    checkpoint58u_post
1120    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1121    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1122    o testreport: add option "-skipdir" to skip some test.
1123    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1124      momentum calculation.
1125    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1126    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1127      remove checkpoint.F and the_correction_step.F (no longer used);
1128      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1129    o add option (linFSConserveTr) to correct for tracer source/sink due to
1130      Linear Free surface
1131    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1132    o pkg/thsice: fix reading mnc-pickups
1133    
1134    checkpoint58t_post
1135    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1136    o pkg/mdsio:
1137     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1138       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1139       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1140     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1141     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1142       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1143     - new S/R (to replace MDSWRITEMETA), which allows to write more
1144       informations (variable names, time ...) to meta files.
1145     - modify rdmds.m to give back the meta file content.
1146    o pkg/diagnostics: change vertical interpolation to be safer, and more
1147       flexible (define p-levels to interpolate to in data.diagnostics);
1148      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1149       diagnostic pointer.
1150    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1151    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1152    o fix multi-category seaice:
1153     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1154       SEAICE_MULTICATEGORY
1155     - fix short wave heat flux
1156    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1157       and allow to use EVP solver. Change forward lab_sea: test both EVP
1158       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1159    o Initial check-in of lab_sea adjoint
1160      (very similar to natl_box_adjoint/code_seaice)
1161      * used C-grid and EVP solver
1162      * used KPP, GM/Redi
1163      * uses inAdExact=.TRUE.
1164      * gradient checks fail for both ADM and TLM
1165        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1166        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1167        issue is related to forward mismatch between g77 an ifort
1168    o pkg/seaice: overhaul of thermodynamics
1169     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1170     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1171     - move a few global fields out of SEAICE.h into seaice_growth.F and
1172       make them 2D (FICE/QNETO/ ...)
1173     - remove FO (it is the same as QNETO)
1174     - introduce a few local fields to avoid modifying external fields such
1175       as atemp, etc.
1176    
1177    checkpoint58s_post
1178    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1179      changed exf_set_gen.F so that
1180        genperiod=0 means input file is one time-constant field and
1181        genperiod=-12 means input file contains 12 monthly means
1182    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1183      this affects truncation error ; generate new output file for exp. which
1184      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1185        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1186        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1187        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1188        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1189        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1190    o start implementation of deep-atmosphere and anelastic formulation
1191    o verification: remove 2nd copy of input files and use script "prepare_run"
1192      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1193    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1194    o profiles: fix for multithreaded case
1195    
1196    o diagnostics: rename few diags:
1197      s/'PRESSURE'/'RCENTER '/g
1198      s/'TICE    '/'oceFreez'/g
1199      s/'TAUX    '/'oceTAUX '/g
1200      s/'TAUY    '/'oceTAUY '/g
1201      s/'SWFLUX  '/'oceQsw  '/g
1202      s/DIFx/DFxE/g
1203      s/DIFy/DFyE/g
1204      and add few ocean-forcing diagnostics:
1205      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1206    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1207      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1208      as actual snow thickness.  It now refers everywhere to effective snow
1209      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1210    
1211    checkpoint58r_post
1212    o modifications to pkg/seaice/growth.F, which change results of
1213      lab_sea experiment: fixes pertain to melting snow over open water, to
1214      masking EVAP under sea ice, and to using the correct AREA variable for
1215      computations of EVAP, PRECIP, HSNOW, and GHEFF
1216    o add ability to read bathy, salt, and theta using MNC (off by def)
1217    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1218      both are turned off by default and do no change any results
1219    o seaice advection with pkg/thsice: a step toward the use of non-linear
1220      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1221    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1222      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1223      in natl_box (affects results @ truncation level: update output.txt)
1224    o multi-threading and IO:
1225      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1226      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1227        (needed to work with SingleCpuIO): tested in all verif. exp.
1228    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1229      affects the results (but none of the verification test uses this scheme).
1230    o Adding some pkg/diagnostics capability to pkg/seaice
1231      (will certainly be subject to changes)
1232    o ctrl: adding new control variables:
1233      lwflux, lwdown, evap, snowprecip, apressure, runoff
1234    
1235    checkpoint58q_post
1236    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1237      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1238      high_res_cube configuration by 4% on Columbia.
1239    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1240      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1241      dynamical allocation (seems to work in multi-threaded).
1242    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1243      single CPU io) so that TAF does not have to see EESUPPORT.h
1244    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1245    
1246    checkpoint58p_post
1247    o obcs: stop if obcs is used with useCDscheme = .true.
1248    o shelfice:
1249     - fix a sign error so that no slip at shelfice interface works
1250     - remove stop for combination non-hydrostatic code and shelfice. That does
1251       not mean, that the results are correct, but at least they are numerically
1252       stable
1253    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1254    o added adjoint exch routined for all exch*3d* routines
1255      and updated flow directives
1256    
1257    checkpoint58o_post
1258    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1259      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1260    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1261      and clean-up reading/writing of pickup files.
1262    o fix local version of read/write pickup (NH part) in rotating_tank/code
1263    o simplify EXCH interface:
1264     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1265     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1266    o added the regrid package
1267    o shelfice:
1268     - add a simple boundary layer scheme to reduce noise
1269     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1270    
1271    checkpoint58n_post
1272    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1273       local variable (not in common block).
1274    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1275      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1276      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1277        to work with SingleCpuIO.
1278    o add "_d 0" to real constant of pkg/cfc subroutines ;
1279       update exp. cfc_exemple & tutorial_cfc_offline output files.
1280    o multi-threading and IO:
1281      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1282        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1283      - barrier before and after reading.
1284      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1285      - avoid using MDS_WRITELOCAL for LAND pkg output.
1286      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1287        common-block variables ; Allows multi-threading with master-thread IO.
1288    o change default MAX_NO_THREADS from 32 to 4 ;
1289      and stop cleanly when MAX_NO_THREADS is too small.
1290    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1291    
1292    checkpoint58m_post
1293    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1294       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1295    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1296       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1297       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1298    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1299        add MITgcm_tutorials (= code + all the tutorials)
1300    o ecco, option to compute cost for total ssh (mean+anom)
1301    o consistent with addition of ptracer and ssh in pkg/profiles
1302    o profiles: adding ptracer and ssh
1303    o testreport: change multi-test output-file name
1304      (from output.txt.{name} to output.{name}.txt)
1305    o profiles: now ok for mutli-tiles case
1306    o seaice: add 4 parameters for different advection schemes for area,
1307      (effective) seaice thickness, enthalphy, and snow height. Their default
1308      is the standard parameter SEAICEadvScheme
1309    o calc_gw:
1310     - add cosFacU in zonal viscous flux (harmonic.visc.).
1311     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1312       of tutorial_plume_on_slope.
1313    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1314    o calc_gw: true flux-form, account for horizontal grid spacing.
1315      update rotating_tank results, but not plume_on_slope (affected at
1316      truncation level, 11 digits).
1317    
1318    checkpoint58l_post
1319    o calc_gw:
1320     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1321     - remove side-drag for now (need to fix it); update plume_on_slope results.
1322     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1323    o commit code to make SST/SSS weights spatially variable
1324      (based on either variable in-situ or variable initial T/S weights)
1325    o pkg/ecco:
1326      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1327        now based on horizontally varying weights wthetaLev, wsaltLev
1328      * cost_averagesflags now returns year indices in addition to day, month
1329      * sflux balance is performed on annual basis
1330        (sflxumm, sfluxmm2, bal_sfluxmm)
1331      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1332        including separate counting and multipliers
1333    o pkg/rbcs
1334      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1335    
1336    checkpoint58k_post
1337    o testreport:
1338     - always build in dir. "build" (if not there, mkdir build instead of building
1339       & running in input)
1340     - run in dir run (if it exists), in build otherwise.
1341     - call prepare_run (if input/prepare_run exists)
1342     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1343    o pkg/exf modifications to interpolation and rotation routines for more
1344       reasonable treatment of North Pole singularity: for tracers North Pole
1345       value is set to northernmost zonal-mean value, for zonal velocity it is
1346       set to zero, and for meridional velocity it is set to northernmost value.
1347    o pkg/exf/exf_check_range.F
1348     - add tile index to diagnostics and move stop statement to the very
1349       end of the routine.
1350    o pkg/diagnostics: (diagnostics_main_init.F)
1351      define title of isomorphic variables according to the current config.
1352    o pkg/thsice with pkg/seaice dynamics:
1353    - fix domain of computation (interior only, required for exf) and do exchanges
1354    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1355    o towards a standard way of dealing with multi-threading in MONITOR
1356      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1357    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1358       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1359    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1360    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1361    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1362       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1363    o tracer advection:
1364     - clean-up and simplify calc_common_factors.F
1365     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1366       advection subroutine (but still not used within DST advection S/R)
1367    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1368    
1369    checkpoint58j_post
1370    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1371      from file (collects calls previously in FORWARD_STEP)
1372    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1373    o adjoint store dir. adjusted accordingly
1374    o genmake2
1375      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1376    
1377    checkpoint58i_post
1378    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1379      on wind stress (SEAICEstressFactor defaults to 1.)
1380    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1381      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1382    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1383      on CS-grid: no longer loosing mass.
1384    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1385    o pkg/ggl90: fix sloppy output and fix a bug
1386    o pkg/seaice: added SEAICEuseEVPpickup parameter
1387      - Set to false in order to start EVP solver with
1388        non-EVP pickup files when using SEAICEuseEVP
1389      - fix sign error in diffusion in seaice_calc_rhs
1390    
1391    checkpoint58h_post
1392    * Modifications for bottom topography control
1393      o replace hFacC by _hFacC at various places
1394      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1395      o add non-self-adjoint cg2d_nsa
1396      o update autodiff support routines
1397      o re-initialise hfac after ctrl_depth_ini
1398      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1399    * Adding verification for 5x5 box (4-layer) bottom topography control
1400    
1401    checkpoint58g_post
1402    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1403       used for mean seasonal cycle, mean diurnal cycle); add an example
1404       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1405    o pkg/ggl90:
1406      - add parameter (minimum surface kinetic energy)
1407      - fix bug (avoiding division by zero)
1408    o couple pkg/thsice to pkg/seaice:
1409      - modify advection in seaice to accomodate new scalar fields to be advected
1410      - only muliDimAdection scheme work with seaice/thsice
1411      - mapping of thsice-variables to seaice-variables, back and forth
1412      - does not break the verification experiments, but does not give the
1413        desired results either
1414    o pkg/seaice
1415      - make (default) second order advection a bit less confusing?
1416    
1417    checkpoint58f_post
1418    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1419      to pkg/seaice):
1420      - new routines thsice_map_exf and thsice_get_exf provide the interface
1421      - add an additional formal parameter to thsice_solve4temp
1422    o pkg/exf:
1423      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1424      - correct Stefan-Boltzmann constant
1425      - new parameter for longwave surface emittance
1426      - separate some stuff from exf_bulkformulae into new routines  
1427        exf_radiation, exf_wind
1428      - add new parameters and constants: longwave emissivity for ocean, ice
1429        and snow, evaporation parameters over ice
1430      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1431        either wind from stress or stress from wind
1432    o pkg/thSIce:
1433    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1434    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1435       and THSICE_CALC_THICKN
1436    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1437    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1438      to make debugging easier.
1439    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1440    o pkg/bulk_force:
1441      - clean-up comments and parameters ;
1442      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1443    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1444      generate new output for test-experiment: aim.5l_cs.thSI
1445    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1446      testreport accordingly
1447    
1448    checkpoint58e_post
1449    o SEAICE_CGRID adjoint done
1450    o R_STAR adjoint implemented.
1451      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1452      * need to sort out init. of h0facc, etc.
1453    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1454      to be able to use it in pure forward.
1455    
1456    checkpoint58d_post
1457    o upgrade simple test-experiment to tutorial example:
1458     step.1: duplicate the experiment and (step.2) will remove the old copy.
1459      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1460      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1461      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1462      tutorial_global_oce_biogeo    <- copy of dic_example
1463      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1464      tutorial_plume_on_slope       <- copy of plume_on_slope
1465      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1466      tutorial_global_oce_optim     <- empty for now (David ?)
1467      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1468     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1469    o correct a sign problem in cost_scat.F
1470    o obcs and ptracers: fix boundary conditions for advections schemes
1471      with larger stencil
1472    o thsice adjoint: start
1473    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1474      completeness
1475    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1476      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1477    o ptracers adjoint:
1478      * avoid extensive recomputatations
1479      * fix missing re-init. of gptr (missed by TAF)
1480    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1481      me to turn off the excessive output to STDOUT that this package produces
1482    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1483      and add those terms in Vector-Invariant formulation.
1484    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1485      if the control period (xx_hfluxperiod etc) is 0
1486    o in profiles pkg, clean routines and fix details
1487    o in ecco pkg, reading ssh data:
1488      fix problem in case the model does not start at iter0=0
1489    o fix mnc-pickup/restart for ptracers
1490    o new package prifiles:
1491      code to compute profile-based cost by Gael Forget
1492      (modifs in ecco, ctrl, autodiff)
1493    o Benign bug fix in initialization (spotted by M. Mazloff) of
1494      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1495    
1496    checkpoint58c_post
1497    o adjoint: finish NLFS adjoint and provide reference output in
1498      verification/global_ocean.90x40x15/results_ad_nlfs
1499    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1500      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1501      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1502      with SEAICE_CGRID defined.
1503    o move calendarDumps from "data" to "data.cal" and clean-up the code
1504      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1505    o add useEXF & useCAL flags (for now, set in hard-coded way)
1506    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1507      (were missing in NH mode, and wrong in quasihydrostatic mode).
1508      waiting for Chris updated version of calc_gw to add those CALLs.
1509    o fix bug in quasihydrostatic S/R ;
1510      add a test for this option: global_ocean.90x40x15.qshyd
1511    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1512      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1513    o add on/off flag useOffLine for package OFFLINE
1514    o seaice:
1515      - modify advection so that it works also on the C-grid
1516      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1517        problem in multi-tile runs with C-grid
1518      - add flags for clipping ice velocities and/or masking solver forcing
1519      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1520        C-grid solver
1521      - added a few comments to seaice_diffusion.F
1522      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1523        are now exclusive)
1524      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1525        required re-ordering the code a little:
1526       + make DAIRN global variable (defined in SEAICE)
1527       + move computation of the viscosities eta and zeta into a new separate
1528         routine (because I need to recompute them in seaice_ocean_stress.F)
1529    
1530    checkpoint58b_post
1531    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1532      update output.txt of exp. aim.5l_cs.thSI
1533    o various mnc cleanups and improvements:
1534      + shrink lookup tables by factor of ~4
1535      + better error reporting when running out of lookup space
1536      + able to handle longer path/file names (up to 500 chars)
1537    o adjoint:
1538      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1539      - TBD: "hidden" mom_vecinv recomp. in dynamics
1540    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1541     (allow to differentiate between forcing components using new integer flags:
1542      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1543     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1544    o ecco
1545      - enable trend removal from SSH anomaly obs.
1546    o adjoint
1547      - a fix for PmEpR when #undef EXACT_CONSERV
1548      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1549      - try to fix "hidden" recomp. in forward_step for NLFS
1550        (NLFS seems broken sometimes after I checked it in)
1551    o seaice:
1552     - add c-grid version of the dynamic solver:
1553       + three new routines that are the c-grid substitute lsr, dynsolver
1554         and ostres
1555       + put a few fields that were local to dynsolver into global common
1556         blocks, so that I can move the computation of stresses etc into
1557         seaice_lsr (saves coding but may break the adjoint).
1558     - replace more hardwired parameters by runtime parameters
1559     - add ice masks that mask the rhs of the implicit solvers where there
1560       is no ice (commented out in seaice_dynsolver, because i am not sure
1561       if this works properly), eventually this should replace the clipping
1562       of ice velocities in seaice_dynsolver to +/-40cm/s.
1563    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1564      include it only where its needed
1565    o move balancing of fluxes before the call of external_forcing_surf
1566    o seaice:
1567      - correct units of turning angles (now they are really in degrees)
1568      - move computation of GWATX/Y out of main routine into dynsolver
1569      - initialize GWATX/Y in seaice_init
1570    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1571      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1572    o seaice: add runtime flags for turning angles (default to zero)
1573    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1574      and trend from exf forcing and ctrl control adjustments
1575    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1576      (since checkpoint57x_post)
1577    o change the default rotation period to 86164.s = the Earth rotation
1578    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1579      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1580    o seaice advection: add code for choosing between the default (2nd order
1581      central differences) and multiDim advection schemes provided by
1582      pkg/generic_advdiff
1583    o seaice:
1584      - removed all references to SEAICE_GRID.h fields from
1585        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1586        (cubed-sphere configuration will change a little)
1587      - grid computations in seaice_init are obsolete now.
1588      - cleaned up code a little so that is easier to read (hopefully).
1589      - added new (better?) discretizations of default advection and diffusion
1590        (turn on with SEAICEuseFluxForm)
1591      - replace 1 in 3d global fields by kSurface in growth.F
1592      
1593    checkpoint58a_post
1594    o seaice:
1595      - bug fix in advect.F
1596    o shelfice:
1597      - separate shelfice load anomaly from pload (breaks with time
1598        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1599        Its default is 0., but it may be computed more cleverly from (unknown)
1600        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1601        done offline. A good approximation of the pressure load anomaly is
1602        necessary to avoid large initial adjustment processes underneath
1603        deep-reaching shelfice.
1604      - small fix in ISOMIP shelfice_thermodynamics
1605      - add more sophisticated thermodynamics of Hellmer (1989), this is
1606        now the default
1607      - give a few constants more intuitive names
1608    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1609      if bulk formulae are used in long integration (especially EmPmR). Turn
1610      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1611      if balancePrintMean, the imbalance that is substracted is printed to
1612      STDOUT.
1613    o fix bug (typo) in obcs_apply_eta.F
1614    o add a new package shelfice which enables us to model the circulation
1615      underneath shelf-ice with draughts of hundreds of meters.
1616     - works
1617     - to do: + include improved thermodynamics
1618              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1619                instead of new field kTopC
1620              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1621                instead of new field R_shelfIce and new code in ini_depth.F
1622                and ini_mask_etc.F?
1623              + adjust vertical mixing schemes?
1624    o seaice pkg:
1625     - add a cpp-flag to include a simple formula for a salinity dependent
1626       freezing point of sea water at the surface
1627     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1628       meridional stresses are now different (and hopefully correct)
1629    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1630       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1631       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1632    o pkg/diagnostics: add options and parameters for regional-statistics
1633       diagnostics ; define regions by reading a region-mask from a file
1634       (might add other options later)
1635    o pkg/bulk_force:
1636     - add option and parameters to use AIM surface-flux formulae.
1637     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1638       others forcing fields (defined in PARM05, parameter file "data") are loaded
1639       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1640     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1641     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1642     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1643       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1644     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1645    
1646    checkpoint58
1647    o add "--embed-source" option to genmake2 which, when the supporting
1648      tools can be compiled (as determined by genmake2) will turn on the
1649      embed_files package which then embeds the entire MITgcm source code
1650      (*.[fFhc] + Makefile) used for the build within the executable
1651      - requested by CNH but off by default
1652      - adds a paltry <9MB to the mitgcmuv executable in most cases
1653      - only writes the output when useEMBEDSRC in eedata is true
1654    o clean up 3-dim. relaxation codes:
1655      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1656      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1657      * Thanks to Tom Haine for testing!
1658    
1659    checkpoint57z_post
1660    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1661      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1662    o fix the pickup behavior for obcs in combination with ptracers
1663    o fix a bug in ptracers_external_fields_load
1664    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1665      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1666    o transfered surface NH pressure to eta field (if exactConserv).
1667    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1668         and update lab_sea output.txt file.
1669    o completing 3-dim. relaxation code: additional term
1670         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1671      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1672      * At compile time, in "EXF_OPTIONS.h" set
1673          #define  ALLOW_CLIMTEMP_RELAXATION
1674          #define  ALLOW_CLIMSALT_RELAXATION
1675      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1676          tauThetaClimRelax3Dim = 15552000.0,
1677          tauSaltClimRelax3Dim  = 15552000.0,
1678      * 3 cases:
1679          1) Use a constant-in-time 3-dim. field
1680          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1681          3) Real-time relax. to time-evolving prescribed field
1682    o Adding Laplacian-type smoothness constraint on
1683      initial and boundary (forcing) controls (ic, bc)
1684      * enable at compile-time via
1685        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1686      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1687      * Absolute scale somewhat unclear so far
1688      * no area weighting was included since no other cost term does so far
1689    
1690    checkpoint57y_post
1691    First step for a NLFS adjoint
1692    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1693    o new init. routines for calc_r_star, calc_surf_dr
1694    o still need to deal with ini_masks_etc
1695    o testreport seemed happy
1696    checkpoint57y_pre
1697    
1698    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1699    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1700    o add new offset feature to offline pkg (plus minor cleanup)
1701    o cfc fixes for final year of integration
1702    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1703      be in GCHEM_OPTIONS).
1704    
1705    checkpoint57x_post
1706    o fix testreport Pb in multiple test experiment.
1707    o cleanup our namelist syntax in verification:
1708      - make it more F95 standards compliant (some work still needed)
1709      - allows the vast majority of our tests to work with gfortran
1710    o Non-Hydrostatic:
1711     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1712     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1713    o Allow to apply AB on T,S rather than on AB(gT,gS):
1714     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1715     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1716       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1717     - need a "clever" read_pickup to restart from the other AB formulation
1718    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1719    o remove some unused variables (reduces number of compiler warnings)
1720    o adjoint
1721      * Disable useVariableViscosity for adjoint for time being
1722        (there are a number of extensive recomputations)
1723      * Initialize certain variables needed for adjoint
1724    
1725    checkpoint57w_post
1726    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1727                 fix the singleCpuIO RS version of MDSWRITEFIELD
1728       and add a WARNING if using globalFiles=T with multi-processors.
1729    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1730      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1731    o tracer advection scheme:
1732      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1733       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1734       was not very convenient).
1735      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1736       (further tests needed for the implicit DST & Flux-Limiter schemes).
1737    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1738      and sRef for convenience, handy, when you want to initialize
1739      ptracers in a large domain with a constant non-zero value. Also,
1740      untangle ptracers_init.F a little.
1741    
1742    checkpoint57v_post
1743    o change dome exp. to use variable viscosity in side-drag terms.
1744    o remove all the files from the cfc_offline test since they are now
1745      incorporated into tutorial_cfc_offline which has been producing
1746      identical results for a few days of testing
1747    o add new parameter: sideDragFactor to enable half-slip-side BC
1748      and change side-drag S/R to use viscosity from mom_calc_visc
1749      (can switch back by setting sideDragFactor=0.); affects results at
1750      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1751       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1752    o vorticity & strain are now computed without masking, to account for
1753      no-slip-side BC in variable viscosity calculation ; mask is applied
1754      anyway later on, before computing advection/coriolis terms.
1755    o modify exp4 to test new obcs support for reading from external files
1756      and for passive tracers
1757    o fix behavior of ptracers_monitor when monitor output is written to a
1758      netcdf-file; still not independent of monitor.F (writes in the same
1759      file).
1760    o change default value of tRef (put a uniform, meaningful value for ocean
1761      & atmos) and initialize sRef (was missing, as Martin mentioned).
1762    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1763      to be proportional to enstrophy dissipation length.  Thus,
1764       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1765      This is now consistent with Smagorinsky and with the manual.
1766    
1767    checkpoint57u_post
1768    o OBCS and PTRACERS: add open boundary support for passive tracers
1769      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1770        OB-values from file; this is not different from the way theta and salinity
1771        are treated
1772      - however, Orlanski-radiation conditions are not supported, and the model
1773        will stop if you use pTracers and Orlanski at the same time.
1774      - beefed up the rountine obcs_external_fields_load: now only those open
1775        boundary values are overwritten with values from files for which there
1776        are really files, otherwise the OB-fields remain untouched. This makes
1777        it possible to use different OBs at different ends of the domain (as
1778        with EXF)
1779    o reduce number of exch calls in shap_filt (s2).
1780    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1781      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1782    
1783    checkpoint57t_post
1784    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1785    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1786      same truncation, independent of the face number: affects affects several
1787      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1788    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1789      note that biharmonic viscosity + no-slip was not tested in any experiment.
1790    o fix bug in non-linear free-surf side-drag ; generate new output for
1791      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1792    o make mnc honor the writeBinaryPrec flag for most kinds of output
1793    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1794    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1795      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1796    o add brackets in multi-terms sum to get same truncation, independent of
1797      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1798      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1799    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1800      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1801      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1802      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1803      Suggested values of viscosity parameters found in mom_calc_visc.
1804      Many new viscosity diagnostics available.
1805    
1806    checkpoint57s_post
1807    o Add clearing-house for viscosity calculations, mom_calc_visc and
1808      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1809      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1810      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1811      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1812      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1813      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1814      ViscAhStrain and viscAhTension are now retired.
1815    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1816    o In response to JMC's bug report, genmake2 now ignores any soft-links
1817      that it finds in the *current* directory when searching for files.
1818      Soft-links found in any other source directories will still work as
1819      they did before.
1820    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1821      a C routine to unlimit the stack size
1822    o mnc-ify pkg/aim snapshot vars
1823    o mnc-ify pkg/land as requested by Daniel
1824    o various changes to mnc including:
1825      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1826      - output can now be grouped so that all files within a group
1827          change the ITER portion of their names in lock-step together
1828      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1829          and works with both EXCH1 and EXCH2 (but needs more testing)
1830      - writing works for all verification test cases w/ g77 on Linux
1831    
1832    checkpoint57r_post
1833    o make MNC variable initialization happen earlier
1834    o add diagnostics for (almost) each term of the momentum Eq.
1835    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1836    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1837    o remove MINIMAL_TAVE_OUTPUT option ;
1838      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1839    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1840      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1841    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1842    o add time-dependent SST, SSS control
1843    o cost terms in ecco/ modularized (new cost_generic.F)
1844    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1845    o new infrastructure for seaice model vs. obs misfits in seaice/
1846      * driver from the_main_loop.F is seaice_cost_driver.F
1847      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1848      * gradient check in Exp. 6a of natl_box_adjoint/
1849    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1850      (see README file)
1851    
1852    checkpoint57q_post
1853    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1854    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1855      - bug was reported by Jean-Michel and Ian Fenty
1856    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1857      update exp. cpl_aim+ocn output.
1858    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1859      Needed for high-res. runs with large global files
1860      to be able to limit tapelev size
1861    o Changed some tests for adjoint:
1862      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1863      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1864      * global_ocean.90x40x15/ back to default 3-level checkpointing
1865    o Modifications to enable scripted COMMON to MODULE conversion
1866      * verification/OpenAD/code/ has necessary scripts and description;
1867      * converts, compiles and runs successfully;
1868    
1869    checkpoint57p_post
1870    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1871    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1872      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1873    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1874    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1875      (was already the case for dissipation with mom_vecinv,
1876       and also the case for grad.PhiHyd when staggered-timeStep)
1877      This will allow to put dissipation out-off the AB time-stepping.
1878     Unfortunately, affects truncation error. Update output of exp. that "fails"
1879      (cg2d matching number) and leave the others for later: front_relax(10),
1880      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1881      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1882    
1883    checkpoint57o_post
1884    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1885      (2) its ready to be documented during the 20050801 DocFest
1886    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1887      for ideal_2D_oce and lab_sea on linux_ia32_g77
1888    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1889      in global1x1_tot/code_seaice_adj to access indices 32, 33
1890      (worth another tag)
1891    
1892    checkpoint57n_post
1893    o adding precip control xx_precip 32
1894    o adding swflux control xx_swflux 33
1895    o Replacing 10 forcing penalty cost routines by 1 generic.
1896    o Implementing partitioning in time-mean and variable adjustment
1897      for atmos. state.
1898    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1899    o in natl_box_adjoint:
1900      * updated exp 1 to 10
1901        (but does not have time-mean vs. variable split results yet)
1902    o updated global1x1/*_seaice_adj/
1903      to incorporate latest changes
1904    o enable useSingleCpuIO for mdsio vector routines
1905      (applies in particular to tapelev I/O)
1906    o removed inefficient K-loop in all active_file*control*.F
1907    
1908    checkpoint57m_post
1909    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1910      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1911    o pkg/exch2: filling of face-corner halo regions is optional
1912      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1913    
1914    checkpoint57l_post
1915     tag before updating tutorials (pre-release-2)
1916    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1917       for output and interpolation of input fields onto model grid)
1918    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1919       Affects results of exp. rotating_tank ; update output.txt.
1920    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1921          and taking the square quantity and/or using a fraction-weight field.
1922    o fix aim_diagnostics_init.F mate numbers.
1923    o add mnc output capability to diagnostics/diagstat and update
1924      our cvsignore files for the ACSII output generated
1925    
1926    checkpoint57k_post
1927    o lab_sea now uses diagnostics package and provides a suite of
1928      new EXF diagnostics output.
1929    
1930    checkpoint57j_post
1931    o exf
1932      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1933        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1934        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1935      * extended diagnostics output
1936        - now includes all EXF variables
1937        - hs, hl moved to common block
1938        - separate S/R for diagnostics, called after ctrl vector is added
1939        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1940        - EXFqnet contains true Qnet (i.e. includes qsw)
1941      * updated verif. lab_sea, global_with_exf
1942      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1943        to ensure that diagnostics sees a true EXFqnet
1944    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1945    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1946      several times with different frequencies.
1947    o mnc-ify the thsice package as requested by Daniel Enderton
1948      - the monitor--MNC output needs work
1949      - many attributes need to be added (most are currently blank)
1950    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1951      - many attributes need to be added (most are currently blank)
1952    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1953    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1954    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1955      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1956         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1957    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1958     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1959    
1960    checkpoint57i_post
1961    o Diagnostics package was changed: diagnostic allocation is now deactivated
1962      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1963    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1964      add 1rst Order upwind vertical Shear.
1965    o add a quick fix for A/B checkpointing in OFFLINE mode
1966    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1967      end-run around the C/Fortran linking horror in eesup/src/timers.F
1968    o added pkg/runclock: allows user to terminate run based on wall clock
1969    o added non-hydrostatic scaling parameter: nh_am2
1970    o pkg/my82: futile attempt to make results compiler-independent by adding
1971      some "_d 0", etc. no effect.
1972    o for mnc output, fill the 'T' coordinate var with myTime and create a
1973      separate 'iter' variable for iteration count
1974    o pkg/diagnostics:
1975      add new capability: output of Global/Regional & per-level statistics ;
1976      tested against monitor output (including land & thSIce) on various exp.
1977    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1978    
1979    checkpoint57h_done
1980      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1981      data.diagnostics, data.gchem, data.ptracers) is done.
1982    
1983    o pkg/diagnostics: prepare for Global/Regional statistics.
1984      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1985    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1986      and rename it: DIFFERENT_MULTIPLE
1987    
1988    checkpoint57h_post
1989    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1990    o pkg/diagnostics: change output frequency, now in seconds (instead
1991      of Nb of iterations). This requires to change data.diagnostics.
1992    checkpoint57h_pre
1993    
1994    o in mnc, let the user create the output dir if both mnc_outdir_date
1995      and mnc_outdir_num are false
1996    o add fflags() to pkg/diagnostics which allows one to specify, on a
1997      per-file basis, the file precision [default behavior is unchanged]
1998    o added diagnostics to pkg/kpp, including computation of mixed layer
1999      depth based on a temperature/density criterion
2000    o updated verification/natl_box to test the new pkg/kpp diagnostics
2001    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2002    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2003    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2004      not mnc -- this mistake was found by JMC and is now corrected
2005    
2006    checkpoint57g_post
2007    o add Adams-Bashforth 3rd Order time stepping:
2008      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2009      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2010    checkpoint57g_pre
2011    
2012    o make lambda[Theta,Salt]ClimRelax spatially varying
2013      (default remains spatially uniform constant based on tau)
2014    o added new control variables
2015      * init. uVel, vVel, etanN
2016      * lambda[Theta,Salt]ClimRelax
2017    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2018      (suggested by G. Forget)
2019    
2020    checkpoint57f_post
2021    o add parameter "baseTime" = model base time = time at iteration zero
2022      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2023      account for baseTime shift
2024    o move Coriolis arrays from PARAMS.h to GRID.h
2025    checkpoint57f_pre
2026    
2027    o mnc-ifying the seaice package
2028    o introduced an alternative length scale calculation for use in the limiting
2029      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2030    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2031    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2032      as well as grad(vort3).  Made it compatible with both approximate form
2033      for the cubed sphere and full form of these gradients.  Added flag
2034      useFullLeith to select between approximate and full form.  
2035    o add "d0" in getcon.F to reduce differences between compilers/platforms
2036      update output.txt of exp. fizhi-gridalt-hs
2037    o change port_rand funtion to allow to set the seed.
2038    o fix obscure MNC bug involving conversion between reals and integers
2039      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2040        new version is now more standards-compliant
2041    o adjoint-related modifications
2042      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2043      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2044      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2045    
2046    checkpoint57e_post
2047    o Adding eddy stress controls a la Ferreira et al.
2048    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2049    
2050    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2051      update output.txt of exp. fizhi-gridalt-hs
2052    o add more "Z" dimensions and associated coordinate vars to MNC
2053    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2054    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2055      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2056      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2057      months and years.  Requires pkg/cal.
2058    o diagnostics: add pickup functionality
2059      - off by default for backwards compatibility
2060      - current version only uses MDSIO -- MNC will be added
2061    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2062    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2063    
2064    checkpoint57d_post
2065    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2066    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2067      output from the diagnostics package
2068    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2069    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2070      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2071    o add coordinate variables to the MNC output from the diagnostics package
2072    o change MNC-flags default value: true when useMNC=TRUE
2073    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2074      the ability (off by default) to read the grid information using MNC
2075    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2076    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2077    o do snap-shot diagnostics at the middle of the time-interval (instead of
2078      at the end).
2079    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2080      new test for AIM with thSIce + slab-ocean
2081    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2082    o move state variable diagnostics to the beginning of the time step ;
2083      (note: still needs some work specially for snap-shot diagnostics)
2084      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2085    
2086    checkpoint57c_post
2087    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2088    o generate new output.txt files on faulks with g77 & the new -ieee option
2089    checkpoint57c_pre
2090    
2091    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2092      update output.txt of exp. global_ocean.90x40x15
2093    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2094      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2095    o add saltFlux(+File) forcing capability with periodicExternalForcing
2096    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2097    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2098    o improvements for the MNC output from DIAGNOSTICS:
2099      - correct handling of the unlimitied dimension
2100      - all dims now have associated coordinate variables
2101      - variables located at U, V, and Corner ("Z") points are now written
2102        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2103        *all* data points are output
2104    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2105    o added pkg/seaice/seaice_monitor.F
2106    o mdsio_readfield.F can now read files visible only to master MPI process.
2107    o pkg/seaice: some test code for ice-modified ocean stress
2108    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2109      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2110      spurious negative numbers for precipitation and humidity.  Will cause
2111      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2112    o pkg/ctrl/
2113      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2114        May be enabled via doPackDiag
2115      *  introduce z-scaling of
2116         + gradient (doZscalePack) and
2117         + control (doZscaleUnpack)
2118    o pkg/mdsio/
2119      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2120      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2121    
2122    checkpoint57b_post
2123    o simplify options in diagnostics_fill arguments (remove weird combinations)
2124    o fix MNC coordinate variables so that they now contain per-face index
2125      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2126      general, EXCH2 grids are only aligned to a "local" coordinate system
2127    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2128    o Implement instantaneous output within pkg diagnostics:
2129      setting a negative frequency in data.diagnostics produces
2130     "snap-shot" output (as opposed to time-average if freq > 0)
2131    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2132      NOTE: change ptracer diagnostics name: use 2 characters to work with
2133            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2134    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2135      becomes the coordinate variable for the 'T' dimension
2136    o add CF-style coordinate variables to MNC
2137      - just a first cut:  numbers are meaningless on the cubesphere and
2138        missing along the T axis but otherwise it works!
2139    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2140    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2141    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2142      this is based directly on what the model compute, so that the content of
2143      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2144    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2145    o clean up build options files for SunOS, in particular
2146      - remove -traditional from xmakedepend
2147      - change -xarch=v9 to -xarch=native for f77
2148      - restore use of make (not gmake)
2149      - add CC=gcc if using g77
2150    o changes per discussion of AM, JMC, & EH3 today:
2151      - move redundant "grid" variables out of "state" -- in preparation of
2152        creating proper CF-style coordinate variables and in recognition
2153        that any/all grid variables can be easily copied (eg. w/NCO) from
2154        the grid files into any of the other NetCDF files
2155      - *always* output grid variables with MDSIO (this will eventually be
2156        changed)
2157      - output MNC grid file if useMNC is true
2158    o every instance of _END_MASTER() has been found and replaced with
2159      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2160      preprocessors
2161    o re-arrange diagnostics pkg initialisation:
2162     - allow each package to extend the available diagnostics list
2163     - add some checking and fix small problems (multi-threaded, ...)
2164     - new S/R diagnostics_fill (replace fill_diagnostics):
2165       look through the short list of active diag. (instead of the long list)
2166       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2167    
2168    checkpoint57a_post
2169    o this set of changes restores TAMC compatibility
2170      tested for global_ocean.90x40x15 adjoint on trough
2171      (what a pain)
2172    
2173    checkpoint57a_pre
2174    o some modifs in tools/build_options for sunos
2175    o call ctrl_pack for ctrl at end for optimcycle=0
2176    
2177    checkpoint57
2178    o add horizontal bi-harmonic viscosity for vertical velocity
2179      - new parameter viscA4W (defaults to viscA4)
2180      - affects only non-hydrostatic code
2181      - to be done: no-slip lateral boundary conditions
2182    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2183    o implement Implicit Vertical advection for pTracers
2184    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2185      (implemented also for implicit vertical diffusion & advection)
2186    o OBCS: extend application of tracer open boundary conditions
2187      to a strip beyond the boundary of width Olx/Oly
2188    o add call monitor to TAF set of required calls (flow directives)
2189      and include in natl_box_adjoint
2190    o untangle a few ifdefs related to cost, ctrl, autodiff
2191      untangel a few ALLOW_ECCO_OPTIMIZATION
2192    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2193      (theta2, salt2 in ecco_cost_weights)
2194    
2195    checkpoint56c_post
2196    o OBCS as control variables
2197      - update ctrl_ad_diff.list, obcs_ad_diff.list
2198      - remove balance of obcs controls from default
2199      - fix index bug nobcs in ctrl_init
2200      - fix dummy fields filen in ctrl_pack
2201      - add dummy weights for obcs
2202    o lsopt: comment out fort.94 output
2203    o optim:
2204      - remove unnecessary header files
2205      - adjusted namelists
2206      - add xerbla.F to Makefile
2207    o exf:
2208      - multiple modifications of exf_check_range
2209      - unit change in exf_init_runoff from [m/year] to [m/s]
2210    o mdsio:
2211      - i/o-vector change debugLevel from debLevA to debLevB
2212    
2213    checkpoint56b_post
2214    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2215      is called from DO_THE_MODEL_IO
2216      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2217      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2218      - clean up PTRACERS_WRITE_TIMEAVE a little
2219    o add another verification experiment that tests both the cfc-pkg and
2220      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2221      reactive tendencies treated inline with regular timestepping
2222    o testreport previously did a lousy job of comparing small numbers, so
2223      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2224      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2225      testreport.
2226    o ptracers_monitor: bug fix for MPI
2227    
2228    checkpoint56a_post
2229    o GCHEM: finish reorganizating the package
2230      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2231        (introduces another 3D-array for each passive tracer, but only if
2232        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2233        gchemTendency is not needed because the timestep is done separately)
2234      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2235      - GCHEM is now---more or less cleanly---separate from PTRACERS
2236      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2237        so clear to me how that should be done in a general way.
2238    o CFC: improve formatting of output in CFC_ATMOS
2239    o PTRACERS:
2240      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2241        that ALL experiments with ptracers enable can be checked. This makes
2242        GCHEM_MONITOR obsolete.
2243      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2244        monitorFreq
2245      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2246    o add PTRACERS (PTR0[1-5]) to testreport output
2247    o exf_check_range:
2248      * default changed to .TRUE.
2249      * will check values for niter0 if debLevA, every timestep if debLevB
2250      * STOP in exf_check_range if 'out of range'
2251      * range chosen generous to allow for potential extema
2252      TBD: a version with stricter range
2253           permitted range would be runtime parameters
2254  o GMredi:  o GMredi:
2255    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2256    - 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 2259  o GCHEM:
2259    - 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
2260      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2261    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2262      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2263        this flag is now only visible within GCHEM-pkg routines.
2264      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2265        be replaced by a 3D array that is computed before thermodynamics; for
2266        this, the tracer ID iTracer had to be included into the parameter list
2267        of ptracers_forcing
2268      - set up forward_step to call gchem_forcing, that will replace
2269        gchem_forcing_int in ptracers_forcing
2270      - cleaning up
2271  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
2272    
2273  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2486  o add two new packages
2486    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2487    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2488      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2489      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2490  o add offline package  o add offline package
2491  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2492    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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