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revision 1.123 by jmc, Fri Jan 24 17:55:25 2003 UTC revision 1.1096 by jmc, Tue May 12 16:39:46 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    checkpoint61n
8    o eesupp & mdsio (SingleCpuIO):
9      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
10        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
11        receive real*4 array (instead of real*8) to read/write 32.bit files.
12        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
13         and remove new mapping S/R)
14    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
15      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
16        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
17        when using exch2. Add S/R to map global io-buffer to global model array.
18      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
19    
20    checkpoint61m
21    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
22      and add 3 other S/R for other types (R4,R8,RS).
23      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
24    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
25     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
26     - reduce number of macro definitions (keep only those which are used);
27       can always call directly the corrresponding S/R if needed.
28     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
29       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
30     Fixed wrong type of arg in:
31       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
32       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
33     To fix: global_sum of var in common block is wrong (multi-threaded) in:
34       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
35     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
36    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
37      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
38    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
39    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
40      edges are closed (zero depth); might happen with "blank tiles";
41      for now, disabled if using OBCS.
42    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
43      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
44    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
45      to reduce length of 1.D array print in STDOUT.
46    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
47      + use 48 tiles (16x8): this will allow to test "blank tiles".
48    o start to test MPI + multi-threaded (change testreport to skip tests
49      where number of tiles do not match).
50    o genmake2: add option "-omp" to turn on Open-MP ;
51      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
52    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
53      and keep the original tile numbering. Note: compatible with old
54      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
55    
56    checkpoint61l
57    o Overlaps had been forgotten in calculating ijk keys : fixed
58    o fix cyrus makedepend for gcc 4.4
59    o experiment fizhi-cs-aqualev20:
60      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
61      and generate new output. Note: new output is much closer to the old
62      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
63      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
64    o pkg/fizhi:
65     - change to avoid indices going deliberately over array-bounds
66     - remove unnecessary MPI stuff
67     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
68     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
69       does not go over array-bounds and therefore returns reliable output.
70     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
71       this S/R has 4 output arguments, which are used inside "get_alarm";
72       when it is called with the same variable "ndum" in place of several
73       output arguments, this produces weird side effect inside "get_alarm"
74      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
75       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
76       address) and produces error.
77    o tools/gemake2: (March 27-29 2009)
78      with option "-mpi": link *_mpi files from "MODS" dir (this is what
79      testreport does).
80    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
81    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
82       update lab_sea.lsr & lab_sea.salt_plume results
83    o pkg/seaice:
84      Major overhaul of the LSOR solver: change discretization from original
85      finite differences to finite volume. The old routine is still in the
86      file seaice_lsr.F and can be turned on with the CPP-flag
87      SEAICE_OLD_AND_BAD_DISCRETIZATION
88      Along with this change, the discretization of the strain rates is changed.
89      The same flag turns on the old discretization in seaice_calc_strainrates.F
90      All verification experiments with seaice are affected (except for
91      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
92      results by setting the above flag.
93      Further changes involve changes in defaults:
94      - ALLOW_FLOODING is defined and turned on by default
95      - SEAICEadvSnow = .true. is now the default
96      - SEAICEadvSalt = .true. is now the default
97      - SEAICEadvAge  = .true. is now the default
98      - SEAICE_clipVelocities  = .false. is now the default
99                                         (as per J. Zhang's recommendation)
100      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
101        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
102      - seaice_growth: replace computation of UG by a simple copy from wspeed
103    
104    checkpoint61k
105    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
106      seaice_lsr: fixed a few metric terms,
107                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
108                  add more debugging diagnostics
109      seaice_evp: removed superfluous many metric terms of FV discretization
110                  of stress divergence
111                  affects lab_sea, lab_sea.hb87
112      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
113                  of stress divergence for non-evp solver
114                  (this part is not tested anywhere)
115      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
116                  they were effectively only half slip
117                  affects lab_sea.hb87
118      updated all relevant verification experiments (except lab_sea//output_adm.txt
119        which was left over, but fails at level 7 & 6)
120    
121    checkpoint61j
122    o pkg/seaice: turn a few hard wired parameters into run time parameters
123    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
124      time in seconds as promised by the usints in seaice_monitor and exf_monitor
125    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
126      that are not cubed-sphere grids
127    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
128    o pkg/ctrl:
129      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
130    o non-hydrostatic (calc_gw.F):
131      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
132      update output of exp. global_ocean.cs32x15.viscA4
133    o remove backward compatibility for thetaMin,phiMin
134      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
135    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
136      interpolated wind field not only for curvilineargrid=.true., but also
137      for a rotated grid (rotateGrid=.true.)
138    o pkg/exf: add capability to bypass interpolation for runoff
139      by setting yet another CPP-flag
140    o eesupp/src, B-grid exchange:
141      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
142    o autodiff
143      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
144      allows to switch to single-prec common blocks;
145      corresponding switch occurs in tamc.h, integer isbyte
146      TAF store directivs "byte" and "kind" seem equivalent;
147      Most tamc.h have been updated correspondingly.
148    
149    checkpoint61i
150    o autodiff:
151      fix autodiff_sore/_restore indices for obcs
152      (spotted by I. Hoteit, M. Mazloff)
153    o pkg/autodiff, pkg/ctrl:
154      Add flag to reduce all tapelev I/O to single-prec.
155      In data.ctrl set
156        doSinglePrecTapelev = .TRUE.
157    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
158      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
159    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
160      real fresh water flux (not yet)
161    o pkg/mdsio & rw:
162     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
163     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
164    o pkg/flt:
165     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
166       init_fixed & ini_varia.
167     - clean-up & simplify linear interpolation S/R:
168       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
169     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
170     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
171     - add vert. coordinate & horiz. indices to output files.
172     - change vertical position in initial condition, from index to depth [m].
173     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
174       (easier to get to a curvilinear grid) ; delX,delY no longer used.
175    o pkg/ggl90: a few modifications:
176     - fix bottom boundary condition, and interpolation of KappaE
177       near top and bottom
178     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
179     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
180     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
181    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
182      (maintain temporary backward compatibility, until next checkpoint)
183    
184    checkpoint61h
185    o pkg/diagnostics with "periodic averaging diagnostics":
186      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
187    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
188    o pkg/obcs: fix loop ranges for balancing code
189    o pkg/flt:
190     - improve criteria for finding which tile owns a float.
191     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
192    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
193      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
194      with ocean biogeo)
195    o pkg/flt:
196     - do some cleaning and fix the restart ;
197     - add output.txt in flt_example/results to get this pkg tested.
198    o genmake2: add an EXTENDED_SRC option and flag.
199       for now, cannot be turned on on command line (only through genmake_local)
200    o pkg/mdsio: read/write vector:
201     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
202     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
203       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
204     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
205      (drop to 4 digits matching for grad). But this test does not look very
206      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
207    
208    checkpoint61g
209    o pkg/flt:
210      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
211       + make OPTIONS file more standard.
212      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
213      - fix _BYTESWAPIO CPP-Flag
214      - standard reading of file-parameter "data.flt"
215      - fix argument list of S/R FLT_RESTART
216      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
217    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
218    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
219      a still unfixed compiler/optimization bug
220    
221    checkpoint61f
222    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
223      update results of global_ocean.cs32x15.icedyn test.
224    o move getcon.F from model/src to pkg/fizhi.
225    o pkg/exf: add parameter for extrapolation of temp up to the surface
226       and option to prevent negative evap (in bulk_largeyeager04 only).
227    o Prather Advection scheme: fix tracer conservation for divergent flow
228      (e.g., when using NonLin Free-Surface).
229    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
230    o gmredi (Visbeck-variable-K):
231     - add more parameters to Visbeck-variable-K.
232     - use a 5 points average for dSigmaR in Visbeck-K calculation
233       (more "homogenous": same stencil and same weights as in dSigmaH)
234     - update output of ideal_2D_oce experiment.
235    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
236      (#undef REAL4_IS_SLOW)
237     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
238       coordinate variable
239     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
240       (surface forcing fields), removes some of the functionality
241     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
242     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
243       probably not all: copy _RS surface flux fields to RL field before
244       calling DIAGNOSTICS_FILL
245     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
246       real*4 (CALL EXCH_*_RS) versions.
247     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
248       (generate new output).
249    
250    checkpoint61e
251    o gmredi (Visbeck-variable-K):
252      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
253      - change computation of Visbeck-K where Slope > Smax :        
254        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
255        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
256    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
257      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
258    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
259    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
260      does not become too large (to avoid precision problems in implicit-diffusion
261      solver); update ideal_2D_oce output.
262    o pkg ggl90:
263      - in ggl90_cal.F: compute only one set of visc/diff, used to
264        step forward TKE/T/S/momentum
265      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
266        have Prandlt =1)
267    o gmredi (fm07):
268      - add lower limit on Transition layer thickness + lower limit on 1/lambda
269      - allow to set few more params from data.gmredi
270    o pkg ggl90:
271          - add missing sqrt(2) factor in computation of mixing length
272            scale in ggl90_calc.F
273            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
274    
275    checkpoint61d
276    o adjoint modifs
277      - adapt to new field rhoInSitu
278      - allow to revert from StoreDynVars2D, StoreDynVars3D
279        to individual fields
280        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
281    o store 3-D (in-situ) density in commom block (DYNVARS.h)
282     - save 1 rho computation.
283     - no longer modify T & S inland when using down_slope pkg.
284    o gad_som : allow to switch to SOM advection for T & S without corresponding
285      pickup files (using new S/R: MDS_CHECK4FILE).
286    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
287      (for useSingleCpuIO to work in multi-threaded)
288    o pkg/shelfice:
289     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
290       with SHELFICEtopoFile in data.shelfice
291     - move code for reading ice shelf topography and modifying hFacC into separate
292       subroutines of the shelfice package
293     - separate initialisation of "fixed" and "variable" variables
294     - kTopC is not (yet) replaced by kSurfC, although this is possible
295    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
296    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
297      and rename:
298      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
299      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
300    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
301    
302    checkpoint61c
303    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
304      to add mass source/sink of fluid in the interior (3-D generalisation
305      of oceanic real-fresh water flux).
306    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
307    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
308    o new pkg: down_slope
309      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
310      - presently, modify T & S inland (dwnslp_calc_rho.F).
311        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
312      - implementation for ocean in P-coords not tested.
313      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
314    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
315      (to facilitate conversion of oceanic pkg to p-coordinate).
316    o change FIND_RHO to FIND_RHO_2D :
317      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
318    o new pkg: cheapaml
319    
320    checkpoint61b
321    o exch2:
322      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
323      - no longer depend on the order sequence (N,S,E,W).
324      - 3rd exchange no longer needed (tested with 24 tiles).
325      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
326      - exch_UV_A-grid readily available (but not yet tested).
327      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
328      (both are no longer needed) in exch_uv: no effect in forward run; but
329       get truncation error differences with adjoint exch.
330    o exch2:
331     - change index-bounds storage (moved from target to local tile,
332       more intuitive this way) ; rename/remove some variables.
333     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
334    
335    checkpoint61a
336    o exch2/matlab-topology-generator:
337      fix bug in index bounds for N-S internal exchange (hard to tell if this
338      had any effect on the solution).
339    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
340      is exceeded
341    o testreport: modify syntax of awk, so that it works also with
342      awk, and not only with nawk and gawk
343    
344    checkpoint61
345    o autodiff
346      Change default for TAF usage by removing argument '-nonew_arg'
347      This changes TAF subroutine argument list (ordering of active var.)
348      Omission of this flag leads to incompatibility w.r.t. TAMC
349      To restore TAMC-compatibility, need following modifs:
350      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
351      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
352      Tested TAF version is 1.9.22
353      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
354    
355    checkpoint60
356    --->>> This is the last checkpoint for which generating the adjoint
357    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
358    --->>> by default.
359    --->>> Future checkpoints will ommit this flag by default.
360    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
361    o pkg/grdchk: Add gradient check to etan0 perturbations.
362    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
363    o pkg/autodiff: more flexibility in zeroadj.
364      model/src: modifying do_oceanic_phys.F accordingly.
365    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
366    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
367      special setup of gmredi for which the adjoint is stable
368      enough for parameter optimization.
369    o bridging the gap between eddy stress and GM.
370      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
371          along with a change in CPP option (now ALLOW_EDDYPSI).
372      -> when using GM w/ GM_AdvForm:
373          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
374          is applied either in the tracer Eq. or in momentum Eq.
375          depending on data.gmredi (intro. GM_InMomAsStress).
376      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
377      The key modifications are in model/src/taueddy_external_forcing.F
378      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
379    
380    checkpoint59r
381    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
382      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
383      fix option to read coriolis(@ cell-corner) from files with CS-grid.
384    o pkg/mnc: add some attributes to standard 1D-coordinate variables
385    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
386      mass points, when using mnc for output
387      - add runtime parameter (missing_value, missing_value_int) to override
388        default (which is the value of getcon('UNDEF'))
389    o pkg/mnc: prepare mnc for the actual use of missing values with the
390      diagnostics package: small fix in mnc_cw_readwrite.template and more
391      initialisation of never used fields
392      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
393      versions
394    o pkg/thsice/thsice_ini_vars.F added default initial values so that
395      thermodynamics sea ice solver does not blow up when some initial fields
396      are missing.
397    o move from external_forcing_surf.F to ini_forcing.F
398      the p-coord. hack consisting in using pLoad to set phi0surf ;
399      update output of tutorial_global_oce_in_p (affected @ truncation level).
400    o Freshen up a bit hs94.1x64x5, notably:
401      remove rotationPeriod and tRef=5*0. (adjoint only), and add
402      exactConserv=.TRUE.
403    o pkg/generic_advdiff:
404      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
405      applies to files where Temperature & Salinity 2nd Order moments are used.
406    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
407      this uses a dynamically allocated internal state data structure
408      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
409      and requires a fortran 90 compiler
410    
411    checkpoint59q
412    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
413       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
414    o Refresh tutorial_global_oce_biogeo, notably:
415      - change bathymetry (put back seamounts in ACC, use hFacs)
416      - change EOS (POLY3 --> JMD95Z)
417      - use Bryan-Lewis vertical diffusivity
418      - use multidimensional advection
419      - remove old virtual virtual in dic pkg, now done through ptracer pkg
420      - change a couple of parameters in dic pkg
421    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
422    o pkg/obcs: change default to OBCSfixTopo = .true.,
423      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
424      - replace "debugMode" with "debugLevel .GE. debLevB"
425    o implementation of TAF directives for gchem,cfc,dic
426    o remove "exp5" (replaced by tutorial_deep_convection).
427    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
428      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
429      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
430      --> changes results in exp4, seaice_obcs
431    o tutorial_deep_convection :
432      update the set-up and increase resolution and domain size ; start
433      from pseudo initial conditions = output at t=120mn in order to see
434      something happening when running testreport.
435    o pkg/seaice: add os7mp as an advection scheme
436                  add check for advection schemes
437                  add a flag for restoring T and S underneath sea ice
438    o pkg/my82: add netcdf-support and diagnostics
439    o thsice pkg:
440      - Now hsMax limits snow height by turning it into ice following
441        flooding scheme (and now conserving energy)
442      - Slight rewriting of the formula in thsice_calc_thick.F
443      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
444      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
445    
446    checkpoint59p
447    o gchem / dic / cfc :
448      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
449      - add new parameter files: "data.dic" & "data.cfc" ;
450      - various re-arrangement in initialisation & header file ;
451      - fix tutorial_global_oce_biogeo for multi-threaded test.
452    o pkg/dic: test for "pickup_dic" file when restarting ;
453      if no pickup-file, can restart with a re-initialised pH (same as it did
454      before) providing pickupStrictlyMatch is set to False.
455    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
456      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
457    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
458      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
459    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
460     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
461       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
462    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
463       scheme to use for vorticty-term ;
464     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
465       (with default selectVortScheme, return to original discretisation)
466     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
467    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
468    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
469      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
470      also fix diagnostics VISCAHW & VISCA4W.
471    
472    checkpoint59o
473    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
474    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
475      move a few statemens out the main loop into separate loops
476    o pkg/shelfice:
477      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
478        (kg/m^2/s), does not break tests, because in verification/isomip,
479        rhoConstFresh=rhoConst (by accident)
480      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
481      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
482        new file model/src/seawater.F, so that they are available for all pkgs.
483      - convert potential temperature into in-situ temperature. This changes the
484        isomip tests => update tests
485    o add a flag writePickupAtEnd (default=true) to be able to suppress
486      writing a pickup at the last timestep
487    o tools/mpack-1.6 :
488      - disable automake (not working) and autoconf (not needed).
489      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
490        also cleaner with much less compilation warnings.
491    o pkg/profiles:
492      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
493      (for "less than 32 characters name" compiler requirement)
494    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
495      conditions that have a different sampling frequency than S/T/U/V obcs
496    o pkg/diagnostics (stats-diags):
497      - fix global Min/Max in case 1 processor get only empty tiles
498    o genmake2: replace (4 times)
499         make genmake_tc_1.o >> genmake_warnings 2>&1
500      with
501         COMM="$CC $CFLAGS -c genmake_tc_1.c"
502         echo $COMM >> genmake_warnings
503         $COMM >> genmake_warnings 2>&1
504      to make genmake2 always see the value of CC as specified in the optfile.
505    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
506      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
507      - modify verification advect_cs test to test SOM-advection on CS-grid.
508    o pkg/ctrl:
509      - Rewrite of ctrl_map_ini_ecco.F,
510        introducing a generic routine (ctrl_map_ini_gen.F).
511      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
512    
513    checkpoint59n
514    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
515      number in dedicate array "hdiag":
516      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
517        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
518      - many small changes (integer format) for large number of diagnostics
519      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
520        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
521    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
522      usingSphericalGrid, this allows to define the rotated grid coordinates
523      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
524      geographical coordinates according to the inverse of the rotation defined
525      by the Euler angles, so that Coriolis parameter and online-interpolation by
526      exf works with the geographical coordinates on XC/YC/XG/YG.
527      Naturally, this feature does not work with all packages, so some
528      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
529      profiles), because there the coordinates are assumed to be regular
530      spherical grid coordinates.
531    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
532      - introduce isopycnal diffusion coefficient control.
533    o tools/adjoint_options:
534      - additional control vector components.
535    o pkg/mnc: have mnc create marginally meaning full coordinate variables
536      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
537    o pkg/mypackage:
538      - add example of read/write pickup for state-var ;
539      - add entry points to the main code for state-vars diags & write-pickup.
540    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
541      transitions for useExfYearlyFields
542      - add new subroutine that determines the file to read from for
543        use*YearlyFields = .TRUE. and .FALSE.
544      - add a verification experiment to global_with_exf that tests
545        useExfYearlyFields with USE_EXF_INTERPOLATION defined
546    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
547      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
548      subroutines (which could be generated from a template, because they are
549      almost identical), for now they are included in obcs_prescribe_read.F for
550      simplicity
551    o pkg/exf:
552      - add a little more diagnostic to exf_interp_read (in analogy to
553        mds_read_field, can be turned off with debugLevel < debugLevA=1)
554      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
555        ugly but fast by unrolling short inner loops, inserting a unroll=8
556        directive in routine lagran, and splitting a loop and making do while the
557        outermost loop (the latter requires the intoduction of index arrays)
558    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
559    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
560      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
561    o verification/seaice_obcs: updated for restart test and latest options
562    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
563      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
564      for now this is only available for the C-grid code and also within
565      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
566    
567    checkpoint59m
568    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
569      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
570    o gad_som : fix flux output (& diagnostics) to have same units as other  
571      advection scheme fluxes (was previously multiplied by deltaT).  
572    o added verification/seaice_obcs both to test seaice open boundaries
573      and to provide an example matlab scrpt for generating them
574    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
575    o pkg/salt_plume: clean up salt_plume_frac.F to
576      remove redundancy in PlumeMethod 1 and 4
577    o pkg/kpp: added saltplume diagnostics
578    o pkg/obcs and pkg/seaice:
579      - do not set uice and vice to zero when OB*icefile are unspecified
580      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
581      - moved seaice tracer obcs after call to seaice_growth
582    o pkg/salt_plume: added various options for salt plume depth
583      criterion and for vertical distribution of the salt
584    
585    checkpoint59l
586    o pkg/ptracers: new version of ptracers pickup:
587      read meta file and write only fields which are needed to restart.
588      ( same logic as main pickup file ; also using pickupStrictlyMatch )
589    o pkg/seaice:
590      - add timescale for melting due to warm mixed layer as a means of
591        setting SEAICE_availHeatFrac more conveniently
592      - add a CPP-flag/runtime parameter check for flooding algorithm
593      - reformulated availHeat in seaice_growth.F to be independent of AREA
594    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
595      unit changes
596    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
597    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
598      SX vector computer.
599    o pkg/seaice:
600      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
601        seaice forcing fields can now be read only through pkg/exf
602      - removed some unused halos
603    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
604    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
605      or U/VICE from U/VWIND before computing U/VSTRESS
606    
607    checkpoint59k
608    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
609      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
610    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
611      all experiments pass when compile with un-initialised var. checking option.
612    o added pkg/salt_plume
613    o script to test restart (for now, in MITgcm_contrib/jmc_script)
614    o pkg/seaice: new read/write pickup version.
615      read meta file and write only fields which are needed to restart.
616      ( same logic as main pickup file ; also using pickupStrictlyMatch )
617    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
618    o lab_sea.hb87: modify the domain & update output.hb87.txt :
619      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
620      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
621      process. Fixed here by closing the domain at the Northern boundary.
622    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
623    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
624      a set of consecutive levels in/from a 3-D array.
625    o pkg/ptracers:
626      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
627      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
628    
629    checkpoint59j
630    o in pkgs: dic, obcs, offline, rbcs:
631      standard way to compute coeff. for time interpolation between 2 time reccords
632      which retains full precision (& make results less dependent on compiler).
633      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
634    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
635      packages instead of reading ice cover and wind speed separately
636    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
637     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
638      to allow to compile customized code before the update)
639    o cleaning-up:
640      - fix CPP instruction syntax in pkg/obcs
641      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
642        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
643      - fix some threads issue in IO parts.
644    o pkg/dic:
645      - add tons of "_d 0" (--> much better testreports !)
646       and then update outputs of tutorial_global_oce_biogeo
647    o pkg/mom_fluxform:
648      add a special version of momentum advection intended to conserve momentum
649      next to a bathymetry step or a coastline edge. (default = off = #undef)
650    o new read/write pickup version:
651      - for now, only implemented for main (mdsio) pickup file.
652      - write out only what is needed to restart; merge pickup_nh , pickup_ph
653        and main pickup together.
654      - read meta file; read only what is needed to restart; stop if a field
655        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
656        if it make sense (even if the restart is not perfect).
657      - if no meta file, assume that pickup to read corresponds exactly to
658        a pickup that would currently be written.
659      - read pickup written in the old format (until checkpoint59i) if it
660        recognizes an old meta file (no field-list).
661      - add a meta file in exp. which starts from a pickup: 2 cases:
662        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
663         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
664        b) a meta file describing the content of the associated pickup file
665         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
666    o pkg/mdsio & pkg/rw:
667      - new routine to read a meta file ; new set of routine to read
668        Multiple-fields file (with meta file).
669    o added open boundary conditions capability for seaice
670        HSNOW, HSALT, UICE, and VICE
671    
672    checkpoint59i
673    o adjoint:
674      * fix multiDimAdvection adjoint
675        (partial recomputation problem by TAF for fVerT(:,:,kDown)
676        and comlev1 size definition (maxpass vs. max. number of tracers)
677      * verification/global_ocean.90x45x15 adjoint now tests
678        NLFS and multiDimAdvection using DST3 (=30)
679      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
680    o pkg/kpp: add "_d 0" to real constant (if missing);
681      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
682      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
683    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
684      for internal parameters related to restart process (formerly from PARAMS.h)
685      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
686    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
687      as argument. (only atm2d & obcs write_pickup have not yet been updated)
688    o pkg/monitor:
689      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
690      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
691      - account for deep Atmosphere factor and density factor (anelastic)
692    o added open boundary conditions capability for seaice HEFF and AREA
693    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
694      thermodynamics
695      - requires a little reorganization, which affects the testreport results
696        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
697        so that now the conservative form is tested
698      - add a few comments
699    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
700    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
701    o add new diagnostics to seaice: advective, diffusive fluxes (only for
702      multidim-advection, for scheme 2 they are not filled) and transports,
703      thermodynamic growth rates
704    o change units of EmPmR (inside the code, + within coupling interface)
705      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
706      Affects results @ truncation level (cg2d match) and update output of
707       experiments: lab_sea(6), global_ocean.90x40x15(10),
708      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
709      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
710      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
711      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
712    
713    checkpoint59h
714    o pkg/exf:
715      - improve vectorization by moving if-statement out of loops in
716        exf_mapfields, exf_radiation
717      - exf_bulkformulae.F: introduce 2D fields and vectorize code
718    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
719    o testreport:
720      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
721        monitor & update offline_exf_seaice exp. output.
722      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
723    o pkg/seaice:
724      - bug fix in the evp solver: boundary conditions were affected be
725        masking of zMax/zMin (changes results)
726      - minor bug fix in boundary conditions in seaice_calc_strainrates
727        (changes results for no_slip)
728      - seaice_lsr.F: make interpolation of eta dependent on boundaries
729      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
730      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
731        stress formulation and no-slip boundary conditions
732    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
733      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
734    o pkg/seaice: a first HSALT time stepping equation has been checked in
735    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
736      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
737      without requiring DO-IF statements
738    o pkg/thsice:
739      use continuous power-law function for partition of energy between lateral
740      melting/freezing and thinning/thickening ; old code using step function
741      still available with #undef THSICE_FRACEN_POWERLAW
742      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
743    o testreport: change AD testing : check against results/output_adm.txt
744      using same scripts as for forward test.
745    
746    checkpoint59g
747    o adjoint testing: in preparation for changing testreport:
748      - output format: cost and grad written on separated lines
749      - ad output results in directory "results" (instead of "results_ad")
750    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
751    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
752    o pkg/ecco: allow user defined cost function contributions
753    o testreport:
754      Allow to choose (per experiment) the list of tested output variables
755       and the main variable (used to issue a pass/FAIL ) ;
756      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
757      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
758      Also modify printing of summary:
759       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
760       b) echo the list of tested variables in the individual summary.txt of
761          each experiment.
762    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
763      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
764      (but still depend on the tile decompostion of the domain).
765    o pkg/seaice: change a discretization detail to make the B-grid code
766      "more symmetric". This change is likely to remove all "ridges/leads" that
767      where quasi-aligned with the grid in B-grid solutions. It may also be
768      the solution to the stress coupling issues with the B-grid.
769    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
770      remove .cvsignore from input dir. (since testreport no longer run here).
771    o pkg/thsice:
772     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
773     - fix reshaping of sea-ice just after advection:
774       melt all the ice only if ice-volume is too small.
775     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
776       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
777     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
778    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
779      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
780    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
781      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
782      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
783      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
784      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
785      -> update output.txt
786    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
787     this affects truncation error: -> update output.txt of exp:
788      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
789      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
790    
791    checkpoint59f
792    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
793    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
794      a bounded range (in forward mode)
795    o pkg/ecco, ctrl, autodiff and mom_common:
796     internal parameter controls, completements of implementations
797    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
798    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
799      (not seem any difference in testing results).
800    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
801       at face corners.
802    o pkg/generic_advdiff:
803     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
804      loop range indices for computing vertical advection tendency
805      and do the calculation in the interior only (no overlap) ;
806      for now, only implemented for SOM advection (to save CPU time).
807     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
808    o exch2 adjoint
809      First set of changes:
810      - add exch2 hand-written adjoint templates
811      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
812        This will require cleanup in pkg/autodiff/*.F
813        (changed routines currently kept separate in verif. code/)
814      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
815        that used to hide exch2 or cubed-sphere specific code
816        (commented via 'cph-exch2')
817    o pkg/seaice
818      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
819    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
820       output of global_ocean.cs32x15.thsice .
821    
822    checkpoint59e
823    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
824      for B-grid vector (not yet tested) and C-grid vector (<- only used
825      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
826    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
827      (#ifdef ALLOW_SALT_PLUME)
828    o gather_2d/scatter_2d: removed halo regions
829    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
830      scheme and the corresponding test case (under front_relax dir). For now,
831      only available with Skew-flux form and not yet tested in realistic set-up.
832      adjoint: store directives updated, but gradient checks deteriorated,
833      so maybe GM/Redi adjoint is now broken.
834    o seaice adjoint
835      * add AREA, HEFF, HSNOW as control variable
836        (should not change lab_sea results)
837      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
838    o pkg/seaice:
839      * added computation of saltFlux in seaice_growth;
840        For time being, sea ice salinity is assumed constant
841        contribution of snow flooding to freshening of sea ice is neglected.
842        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
843        defaults to 0.0 in order to maintain backward compatibility.
844        Typical values for SEAICE_salinity are 4 to 10 g/kg.
845      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
846      * added SEAICE_availHeatFrac, which specifies fraction of surface level
847        heat content used to melt or grow ice
848      * commented out cap of HICE: it helps keep ice thinner
849      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
850      * applied OBCS T/S mask to HEFFM sea ice mask
851    
852    checkpoint59d
853    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
854     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
855     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
856    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
857     and change default value of parameter "GM_Small_Number";
858     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
859       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
860       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
861    o pkg/ecco: cost function when applying pkg/smooth to controls
862    o pkg/ctrl: add forcingPrecond run time parameter
863    o pkg/seaice:
864     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
865     - fix bug in metric terms of u-equation in LSR solver (implicit part),
866       changes verification/lab_sea
867     - rearrange implicit part of u-equation in LSR solver to make it easier to
868       read, understand, and debug. This causes changes at the truncation level.
869     - fix (serious) bug in the boundary conditions (sign error in the implicit
870       part) of the LSR solver. Changes all LSR results.
871     - fixed problem with HSNOW initialization to avoid thick snow when AREA
872       is initilized with small values - does not change lab_sea results.
873     - added HsnowFile initialization capability
874    o pkg/smooth: addition to model/src and pkg/ctrl so allow
875     initialization of pkg/smooth and application to control vector
876    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
877    o dependencies: pkg/profiles requires pkg/cal
878    o pkg/profiles:
879     - added option ALLOW_PROFILES_GENERICGRID
880         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
881         that interpolation information (grid points and coefficients) is provided
882         within the netcdf input files.
883         -> sample matlab scripts can be found in MITgcm_contrib/gael
884         that allow you to prepare netcdf input files.
885     - also modified: cleaner include statements, cleaner error print statements,
886       cleaner stops when error, and more tests of the netcdf input files consistency.
887    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
888    o pkg/seaice:
889     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
890       requires a new routine: seaice_diagnostics_fill.F
891     - make sure that seaice does not move if not forced (pressure replacement
892       method, Hibler and Ip, 1995), changes results
893     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
894     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
895       It is turned off by default (=-1.), because it changes the results.
896     - make it possible to read AREA from a file, too.
897    
898    checkpoint59c
899    o add S/R and diagnostics for oceanic mixed-layer depth
900    o move GMRedi call after all vertical mixing schemes (including KPP)
901    o pkg/thsice:
902     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
903      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
904    o pkg/obcs:
905     - bug fix for balance code
906    o pkg/seaice:
907      - allow values of SEAICE_elasticParm > 1
908      - add new parameter SEAICE_evpTauRelax as an alternative
909        to SEAICE_elasticParm
910      - make lsr boundary conditions free slip (by default), changes result
911      - add code for no slip boundary conditions for lsr
912      - set minimum of zeta to zero (and not 4e8) (changes results)
913      - add a cap on AREA after advecting AREA if seaice_growth is not called
914    o change calculation of Visbeck K:
915      - no longer depend on tapering scheme; instead, compute slope (limited
916        by GM_maxSlope). this is equivalent to what was comuted before with
917        clipping or linear tappering.
918      - fix vertical averaging (wrong by 1/2 level)
919      - leave the old version (but will not be maintained) within
920        #ifdef OLD_VISBECK_CALC / #endif
921      - update output of exp. ideal_2D_oce
922    o change error catch in calc_r_star to improve vectorization
923    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
924      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
925    o adjoint:
926      Re-organized adjoint checkpointing according to Matt Mazloff
927      (but with modifs/completions/cleanups)
928      Storing is now bundled into large arrays to optimized I/O
929      (and second step in cleanup of the_main_loop)
930    
931    checkpoint59b
932    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
933      - export/import (between ocean & coupler) fields needed for ocean DIC.
934    o pkg/seaice:
935      - get rid of three more exchanges seaice_calc_viscosities (required
936        different loop boundaries in seaice_lsr and seaice_ocean_stress)
937      - bug fix in seaice_ocean_stress (update of lab_sea required)
938      - reduce loop boundaries to necessary minimum also in seaice_evp
939      - go back to the old way of computing deltaC/Z as the adjoint likes that
940        better
941    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
942      passive tracer to an Age Tracer) + update output.txt
943    o pkg/exf:
944      - implement A-grid / C-grid selection for wind-stress input files.
945      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
946      for now, in exf_bulk_largeyeager04.F only :
947      - change implementation for case where windspeed + 2. components wind-stress
948        are read-in. AND use rhoConstFresh to convert evap.
949    o pkg/seaice:
950      - use correct EXCH_UV for wind-forcing (on A-grid).
951      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
952        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
953    o pkg/exf:
954      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
955      EXF_INTERPOLATION:
956      - merge global_with_exf/code version of exf_interp_read.F
957        to the main code ;
958      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
959        reading the file ; Important: This options needs to be defined to recover
960        previous code.
961        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
962      - no longer loose real*8 precision along the way when using exf_iprec=64.
963    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
964      - change discretisation of evp-solver in order to avoid another exchange
965        (changes lab_sea) and clean up a little
966      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
967        help the adjoint (this also changes the results slightly)
968      - add a few "_d 0" where they had been missing in seaice_evp.F
969      - cleaning up: remove unused seaice_calc_rhs.F
970    o pkg/exf: some cleaning-up:
971      - change various "constants" into runtime parameters
972      - cleaned-up Large&Yeager04 routine which should eventually
973        replace exf_bulkformulae.F (changed names of S/R and CPP)
974        and merged various ALLOW_ATM_WIND options
975     only used with thsice pkg (in thsice_get_exf.F):
976      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
977        which are used when useStabilityFct_overIce=TRUE (= the default)
978      - change default values of ice & snow emissivity and scale downward LW
979        by ice & snow emissivity.
980    o pkg/thsice:
981     fix few little problems, in thsice_calc_thickn.F:
982      - growth vertically (and not laterally) if iceFrac == iceMaskMax
983      - melt only laterally if hIce < hThinIce (as the comments say)
984      and in thsice_extend.F:
985      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
986      - start to form ice as soon as the minimum ice-volume is reachable.
987     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
988      and cpl_aim+ocn
989    o pkg/kpp
990     - move computation of surface related input fields to KPP into a new
991       subroutine kpp_forcing_surf.F
992     - remove wrong (within bi,bj loops) EXCH calls.
993     - little cleaning (add argument myThid in last position, cvs header ...)
994     - for now, fix conservation problem by exchanging KPPviscAz (may not
995       be the best fix)
996    o pkg/seaice
997     - check for inconsistent evp parameter/cpp-flag combination
998     - remove leftover errIO flat for obsolete name list error handling
999    o OpenAD
1000     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1001    
1002    checkpoint59a
1003    o pkg/seaice: some parameter clarifications and a little bit of clean up
1004    o pkg/thsice: rename run-time parameters:
1005       himin       -> hIceMin
1006       himin0      -> hThinIce
1007       hihig       -> hThickIce
1008       i0          -> i0swFrac
1009       transCoef   -> bMeltCoef
1010       frac_energy -> fracMelting
1011      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1012       with default values (for now) that do not change the results.
1013      remove old version of thsice vars advection in pkg/seaice.
1014    o in FFIELDS.h:
1015      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1016      - make pLoad & sIceLoad always available (but still only used if
1017         ATMOSPHERIC_LOADING is #define).
1018    o pkg/kpp: replaced _KPP_RL with _RL
1019    o bug fixes for vertical diffusivity computations when both KPP and
1020        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1021        are no longer updating the vertical diffusivity array
1022        (passed as argument) but are (re-) setting those arrays.
1023    o pkg/seaice: fix bug in evp solver, while doing that
1024      - change (improve?) discretization of stress computations for both
1025        cgrid-lsr and evp solver
1026      - add a new routine to compute strain rates
1027      - the above changes lab_sea results
1028      - add no slip conditions for evp solver (off by default), lsr-version
1029        may follow
1030      - fix exchange for shear at Z-points (does not change lab_sea)
1031      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1032        (to force the user to pick a time step since there is not "safe" way
1033        of choosing it)
1034      - add principal stress diagnostics
1035      - rearrange fields for evp a little to avoid having to call a: too many
1036        exchanges and b: exchanges for stress trensor components which we do
1037        not have.
1038      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1039        of evp, complete rewrite for lsr case (latter is does not yet work
1040        in all cases)
1041    o pkg/kpp: add code to have mixing in shelf ice caverns
1042      - add myThid to all kpp routines (long overdue)
1043    
1044    checkpoint59
1045    o pkg/exf:
1046      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1047        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1048      - move exf header files from lower_case.h to UPPER_CASE.h ;
1049        add missing cvs Header & Name
1050      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1051      - add namelist param. selectStressGridPosition, exf_monFreq
1052      - retire many _CLIM routines, and remove data.exf_clim
1053        + params moved to data.exf
1054        + climsst, climsss now handled by exf_set_gen, i.e.
1055          climss?period=0 refers to constant field,
1056          climss?period=-12 to monthly forcing
1057      - split up namelists in data.exf
1058    o pkg/seaice:
1059      - remove seaice_exch and seaice_exch_uv
1060      - remove superfluous exchange of theta
1061      - add myThid to seaice_budget_ocean/ice
1062      - add new interface for atmospheric wind forcing (C-grid only)
1063        + new routine
1064        + two new field (taux, tauy for stress over ice)
1065        + removed one global field (DAIRN) for C-grid case only
1066    o pkg/thsise
1067      - 2nd set of modifs for thsice adjoint in conjunction with exf
1068    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1069    
1070    checkpoint58y_post
1071    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1072      vertical diffusivity, similar to that in MOM4; turned on using
1073      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1074      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1075    o Added capability for 3D specification of background vertical diffusion
1076      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1077      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1078      "data" file that contains the 3D vertical diffusivity coefficients.
1079    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1080      - add code within pkg thsice to advect & diffuse sea-ice fields
1081      similar to (and will replace) what has been added in  seaice_advdiff.F,
1082      but: - conserving Mass, Heat & Salt.
1083           - better when using non-linear advection scheme (not yet fully tested)
1084           - can also be used in atmospheric set-up (for now, only the diffusion).
1085    
1086    checkpoint58x_post
1087    o IO option for global-file compact format:
1088      - add options when generating topology (utils/exch2/matlab-topology-generator)
1089      - add I/O capability (pkg/mdsio).
1090      - adapt utils/matlab/rdmds.m to read this format.
1091      for now long-line format not yet supported by pkg/mdsio (& exch2).
1092    o shelfice: add a few diagnostics
1093    
1094    checkpoint58w_post
1095    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1096      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1097      (and replace horiVertRatio in NH code).
1098      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1099                         and tutorial_plume_on_slope (sensitive to truncation)
1100    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1101      directly to drive seaice model (C-grid only)
1102    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1103     - reintroduce computation of wind from stress,
1104     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1105       mass points to avoid tau = 0
1106     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1107    o rdmnc.m: make it work with "global" files created with gluemnc
1108    o rdmnc.m : some improvements in dealing with singleton dimension
1109      (tested on all testreport mnc output files).
1110    o genmake2: disable pkg/profiles if netcdf test fails.
1111    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1112    o move call to cal_readparms up to make calendar parameters/variable available
1113      to all packages
1114    
1115    checkpoint58v_post
1116    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1117      useDynP_inEos_Zc tested.
1118    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1119    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1120      and portions thereof.  See read_cs.txt for description and examples.
1121    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1122      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1123      following the great-circle arc between those 2 points.
1124    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1125      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1126    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1127     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1128     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1129     - still needs work (not working with some options ; efficiency to improve)
1130       and serious testing.
1131     - use this scheme for temperature & salinity in 2 advection test exp.:
1132       advect_xy & advect_xz, respectively.
1133    
1134    checkpoint58u_post
1135    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1136    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1137    o testreport: add option "-skipdir" to skip some test.
1138    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1139      momentum calculation.
1140    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1141    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1142      remove checkpoint.F and the_correction_step.F (no longer used);
1143      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1144    o add option (linFSConserveTr) to correct for tracer source/sink due to
1145      Linear Free surface
1146    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1147    o pkg/thsice: fix reading mnc-pickups
1148    
1149    checkpoint58t_post
1150    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1151    o pkg/mdsio:
1152     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1153       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1154       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1155     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1156     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1157       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1158     - new S/R (to replace MDSWRITEMETA), which allows to write more
1159       informations (variable names, time ...) to meta files.
1160     - modify rdmds.m to give back the meta file content.
1161    o pkg/diagnostics: change vertical interpolation to be safer, and more
1162       flexible (define p-levels to interpolate to in data.diagnostics);
1163      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1164       diagnostic pointer.
1165    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1166    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1167    o fix multi-category seaice:
1168     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1169       SEAICE_MULTICATEGORY
1170     - fix short wave heat flux
1171    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1172       and allow to use EVP solver. Change forward lab_sea: test both EVP
1173       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1174    o Initial check-in of lab_sea adjoint
1175      (very similar to natl_box_adjoint/code_seaice)
1176      * used C-grid and EVP solver
1177      * used KPP, GM/Redi
1178      * uses inAdExact=.TRUE.
1179      * gradient checks fail for both ADM and TLM
1180        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1181        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1182        issue is related to forward mismatch between g77 an ifort
1183    o pkg/seaice: overhaul of thermodynamics
1184     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1185     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1186     - move a few global fields out of SEAICE.h into seaice_growth.F and
1187       make them 2D (FICE/QNETO/ ...)
1188     - remove FO (it is the same as QNETO)
1189     - introduce a few local fields to avoid modifying external fields such
1190       as atemp, etc.
1191    
1192    checkpoint58s_post
1193    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1194      changed exf_set_gen.F so that
1195        genperiod=0 means input file is one time-constant field and
1196        genperiod=-12 means input file contains 12 monthly means
1197    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1198      this affects truncation error ; generate new output file for exp. which
1199      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1200        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1201        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1202        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1203        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1204        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1205    o start implementation of deep-atmosphere and anelastic formulation
1206    o verification: remove 2nd copy of input files and use script "prepare_run"
1207      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1208    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1209    o profiles: fix for multithreaded case
1210    
1211    o diagnostics: rename few diags:
1212      s/'PRESSURE'/'RCENTER '/g
1213      s/'TICE    '/'oceFreez'/g
1214      s/'TAUX    '/'oceTAUX '/g
1215      s/'TAUY    '/'oceTAUY '/g
1216      s/'SWFLUX  '/'oceQsw  '/g
1217      s/DIFx/DFxE/g
1218      s/DIFy/DFyE/g
1219      and add few ocean-forcing diagnostics:
1220      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1221    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1222      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1223      as actual snow thickness.  It now refers everywhere to effective snow
1224      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1225    
1226    checkpoint58r_post
1227    o modifications to pkg/seaice/growth.F, which change results of
1228      lab_sea experiment: fixes pertain to melting snow over open water, to
1229      masking EVAP under sea ice, and to using the correct AREA variable for
1230      computations of EVAP, PRECIP, HSNOW, and GHEFF
1231    o add ability to read bathy, salt, and theta using MNC (off by def)
1232    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1233      both are turned off by default and do no change any results
1234    o seaice advection with pkg/thsice: a step toward the use of non-linear
1235      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1236    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1237      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1238      in natl_box (affects results @ truncation level: update output.txt)
1239    o multi-threading and IO:
1240      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1241      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1242        (needed to work with SingleCpuIO): tested in all verif. exp.
1243    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1244      affects the results (but none of the verification test uses this scheme).
1245    o Adding some pkg/diagnostics capability to pkg/seaice
1246      (will certainly be subject to changes)
1247    o ctrl: adding new control variables:
1248      lwflux, lwdown, evap, snowprecip, apressure, runoff
1249    
1250    checkpoint58q_post
1251    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1252      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1253      high_res_cube configuration by 4% on Columbia.
1254    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1255      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1256      dynamical allocation (seems to work in multi-threaded).
1257    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1258      single CPU io) so that TAF does not have to see EESUPPORT.h
1259    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1260    
1261    checkpoint58p_post
1262    o obcs: stop if obcs is used with useCDscheme = .true.
1263    o shelfice:
1264     - fix a sign error so that no slip at shelfice interface works
1265     - remove stop for combination non-hydrostatic code and shelfice. That does
1266       not mean, that the results are correct, but at least they are numerically
1267       stable
1268    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1269    o added adjoint exch routined for all exch*3d* routines
1270      and updated flow directives
1271    
1272    checkpoint58o_post
1273    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1274      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1275    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1276      and clean-up reading/writing of pickup files.
1277    o fix local version of read/write pickup (NH part) in rotating_tank/code
1278    o simplify EXCH interface:
1279     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1280     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1281    o added the regrid package
1282    o shelfice:
1283     - add a simple boundary layer scheme to reduce noise
1284     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1285    
1286    checkpoint58n_post
1287    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1288       local variable (not in common block).
1289    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1290      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1291      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1292        to work with SingleCpuIO.
1293    o add "_d 0" to real constant of pkg/cfc subroutines ;
1294       update exp. cfc_exemple & tutorial_cfc_offline output files.
1295    o multi-threading and IO:
1296      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1297        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1298      - barrier before and after reading.
1299      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1300      - avoid using MDS_WRITELOCAL for LAND pkg output.
1301      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1302        common-block variables ; Allows multi-threading with master-thread IO.
1303    o change default MAX_NO_THREADS from 32 to 4 ;
1304      and stop cleanly when MAX_NO_THREADS is too small.
1305    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1306    
1307    checkpoint58m_post
1308    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1309       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1310    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1311       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1312       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1313    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1314        add MITgcm_tutorials (= code + all the tutorials)
1315    o ecco, option to compute cost for total ssh (mean+anom)
1316    o consistent with addition of ptracer and ssh in pkg/profiles
1317    o profiles: adding ptracer and ssh
1318    o testreport: change multi-test output-file name
1319      (from output.txt.{name} to output.{name}.txt)
1320    o profiles: now ok for mutli-tiles case
1321    o seaice: add 4 parameters for different advection schemes for area,
1322      (effective) seaice thickness, enthalphy, and snow height. Their default
1323      is the standard parameter SEAICEadvScheme
1324    o calc_gw:
1325     - add cosFacU in zonal viscous flux (harmonic.visc.).
1326     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1327       of tutorial_plume_on_slope.
1328    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1329    o calc_gw: true flux-form, account for horizontal grid spacing.
1330      update rotating_tank results, but not plume_on_slope (affected at
1331      truncation level, 11 digits).
1332    
1333    checkpoint58l_post
1334    o calc_gw:
1335     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1336     - remove side-drag for now (need to fix it); update plume_on_slope results.
1337     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1338    o commit code to make SST/SSS weights spatially variable
1339      (based on either variable in-situ or variable initial T/S weights)
1340    o pkg/ecco:
1341      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1342        now based on horizontally varying weights wthetaLev, wsaltLev
1343      * cost_averagesflags now returns year indices in addition to day, month
1344      * sflux balance is performed on annual basis
1345        (sflxumm, sfluxmm2, bal_sfluxmm)
1346      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1347        including separate counting and multipliers
1348    o pkg/rbcs
1349      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1350    
1351    checkpoint58k_post
1352    o testreport:
1353     - always build in dir. "build" (if not there, mkdir build instead of building
1354       & running in input)
1355     - run in dir run (if it exists), in build otherwise.
1356     - call prepare_run (if input/prepare_run exists)
1357     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1358    o pkg/exf modifications to interpolation and rotation routines for more
1359       reasonable treatment of North Pole singularity: for tracers North Pole
1360       value is set to northernmost zonal-mean value, for zonal velocity it is
1361       set to zero, and for meridional velocity it is set to northernmost value.
1362    o pkg/exf/exf_check_range.F
1363     - add tile index to diagnostics and move stop statement to the very
1364       end of the routine.
1365    o pkg/diagnostics: (diagnostics_main_init.F)
1366      define title of isomorphic variables according to the current config.
1367    o pkg/thsice with pkg/seaice dynamics:
1368    - fix domain of computation (interior only, required for exf) and do exchanges
1369    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1370    o towards a standard way of dealing with multi-threading in MONITOR
1371      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1372    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1373       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1374    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1375    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1376    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1377       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1378    o tracer advection:
1379     - clean-up and simplify calc_common_factors.F
1380     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1381       advection subroutine (but still not used within DST advection S/R)
1382    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1383    
1384    checkpoint58j_post
1385    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1386      from file (collects calls previously in FORWARD_STEP)
1387    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1388    o adjoint store dir. adjusted accordingly
1389    o genmake2
1390      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1391    
1392    checkpoint58i_post
1393    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1394      on wind stress (SEAICEstressFactor defaults to 1.)
1395    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1396      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1397    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1398      on CS-grid: no longer loosing mass.
1399    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1400    o pkg/ggl90: fix sloppy output and fix a bug
1401    o pkg/seaice: added SEAICEuseEVPpickup parameter
1402      - Set to false in order to start EVP solver with
1403        non-EVP pickup files when using SEAICEuseEVP
1404      - fix sign error in diffusion in seaice_calc_rhs
1405    
1406    checkpoint58h_post
1407    * Modifications for bottom topography control
1408      o replace hFacC by _hFacC at various places
1409      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1410      o add non-self-adjoint cg2d_nsa
1411      o update autodiff support routines
1412      o re-initialise hfac after ctrl_depth_ini
1413      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1414    * Adding verification for 5x5 box (4-layer) bottom topography control
1415    
1416    checkpoint58g_post
1417    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1418       used for mean seasonal cycle, mean diurnal cycle); add an example
1419       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1420    o pkg/ggl90:
1421      - add parameter (minimum surface kinetic energy)
1422      - fix bug (avoiding division by zero)
1423    o couple pkg/thsice to pkg/seaice:
1424      - modify advection in seaice to accomodate new scalar fields to be advected
1425      - only muliDimAdection scheme work with seaice/thsice
1426      - mapping of thsice-variables to seaice-variables, back and forth
1427      - does not break the verification experiments, but does not give the
1428        desired results either
1429    o pkg/seaice
1430      - make (default) second order advection a bit less confusing?
1431    
1432    checkpoint58f_post
1433    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1434      to pkg/seaice):
1435      - new routines thsice_map_exf and thsice_get_exf provide the interface
1436      - add an additional formal parameter to thsice_solve4temp
1437    o pkg/exf:
1438      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1439      - correct Stefan-Boltzmann constant
1440      - new parameter for longwave surface emittance
1441      - separate some stuff from exf_bulkformulae into new routines  
1442        exf_radiation, exf_wind
1443      - add new parameters and constants: longwave emissivity for ocean, ice
1444        and snow, evaporation parameters over ice
1445      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1446        either wind from stress or stress from wind
1447    o pkg/thSIce:
1448    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1449    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1450       and THSICE_CALC_THICKN
1451    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1452    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1453      to make debugging easier.
1454    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1455    o pkg/bulk_force:
1456      - clean-up comments and parameters ;
1457      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1458    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1459      generate new output for test-experiment: aim.5l_cs.thSI
1460    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1461      testreport accordingly
1462    
1463    checkpoint58e_post
1464    o SEAICE_CGRID adjoint done
1465    o R_STAR adjoint implemented.
1466      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1467      * need to sort out init. of h0facc, etc.
1468    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1469      to be able to use it in pure forward.
1470    
1471    checkpoint58d_post
1472    o upgrade simple test-experiment to tutorial example:
1473     step.1: duplicate the experiment and (step.2) will remove the old copy.
1474      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1475      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1476      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1477      tutorial_global_oce_biogeo    <- copy of dic_example
1478      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1479      tutorial_plume_on_slope       <- copy of plume_on_slope
1480      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1481      tutorial_global_oce_optim     <- empty for now (David ?)
1482      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1483     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1484    o correct a sign problem in cost_scat.F
1485    o obcs and ptracers: fix boundary conditions for advections schemes
1486      with larger stencil
1487    o thsice adjoint: start
1488    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1489      completeness
1490    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1491      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1492    o ptracers adjoint:
1493      * avoid extensive recomputatations
1494      * fix missing re-init. of gptr (missed by TAF)
1495    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1496      me to turn off the excessive output to STDOUT that this package produces
1497    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1498      and add those terms in Vector-Invariant formulation.
1499    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1500      if the control period (xx_hfluxperiod etc) is 0
1501    o in profiles pkg, clean routines and fix details
1502    o in ecco pkg, reading ssh data:
1503      fix problem in case the model does not start at iter0=0
1504    o fix mnc-pickup/restart for ptracers
1505    o new package prifiles:
1506      code to compute profile-based cost by Gael Forget
1507      (modifs in ecco, ctrl, autodiff)
1508    o Benign bug fix in initialization (spotted by M. Mazloff) of
1509      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1510    
1511    checkpoint58c_post
1512    o adjoint: finish NLFS adjoint and provide reference output in
1513      verification/global_ocean.90x40x15/results_ad_nlfs
1514    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1515      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1516      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1517      with SEAICE_CGRID defined.
1518    o move calendarDumps from "data" to "data.cal" and clean-up the code
1519      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1520    o add useEXF & useCAL flags (for now, set in hard-coded way)
1521    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1522      (were missing in NH mode, and wrong in quasihydrostatic mode).
1523      waiting for Chris updated version of calc_gw to add those CALLs.
1524    o fix bug in quasihydrostatic S/R ;
1525      add a test for this option: global_ocean.90x40x15.qshyd
1526    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1527      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1528    o add on/off flag useOffLine for package OFFLINE
1529    o seaice:
1530      - modify advection so that it works also on the C-grid
1531      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1532        problem in multi-tile runs with C-grid
1533      - add flags for clipping ice velocities and/or masking solver forcing
1534      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1535        C-grid solver
1536      - added a few comments to seaice_diffusion.F
1537      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1538        are now exclusive)
1539      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1540        required re-ordering the code a little:
1541       + make DAIRN global variable (defined in SEAICE)
1542       + move computation of the viscosities eta and zeta into a new separate
1543         routine (because I need to recompute them in seaice_ocean_stress.F)
1544    
1545    checkpoint58b_post
1546    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1547      update output.txt of exp. aim.5l_cs.thSI
1548    o various mnc cleanups and improvements:
1549      + shrink lookup tables by factor of ~4
1550      + better error reporting when running out of lookup space
1551      + able to handle longer path/file names (up to 500 chars)
1552    o adjoint:
1553      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1554      - TBD: "hidden" mom_vecinv recomp. in dynamics
1555    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1556     (allow to differentiate between forcing components using new integer flags:
1557      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1558     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1559    o ecco
1560      - enable trend removal from SSH anomaly obs.
1561    o adjoint
1562      - a fix for PmEpR when #undef EXACT_CONSERV
1563      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1564      - try to fix "hidden" recomp. in forward_step for NLFS
1565        (NLFS seems broken sometimes after I checked it in)
1566    o seaice:
1567     - add c-grid version of the dynamic solver:
1568       + three new routines that are the c-grid substitute lsr, dynsolver
1569         and ostres
1570       + put a few fields that were local to dynsolver into global common
1571         blocks, so that I can move the computation of stresses etc into
1572         seaice_lsr (saves coding but may break the adjoint).
1573     - replace more hardwired parameters by runtime parameters
1574     - add ice masks that mask the rhs of the implicit solvers where there
1575       is no ice (commented out in seaice_dynsolver, because i am not sure
1576       if this works properly), eventually this should replace the clipping
1577       of ice velocities in seaice_dynsolver to +/-40cm/s.
1578    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1579      include it only where its needed
1580    o move balancing of fluxes before the call of external_forcing_surf
1581    o seaice:
1582      - correct units of turning angles (now they are really in degrees)
1583      - move computation of GWATX/Y out of main routine into dynsolver
1584      - initialize GWATX/Y in seaice_init
1585    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1586      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1587    o seaice: add runtime flags for turning angles (default to zero)
1588    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1589      and trend from exf forcing and ctrl control adjustments
1590    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1591      (since checkpoint57x_post)
1592    o change the default rotation period to 86164.s = the Earth rotation
1593    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1594      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1595    o seaice advection: add code for choosing between the default (2nd order
1596      central differences) and multiDim advection schemes provided by
1597      pkg/generic_advdiff
1598    o seaice:
1599      - removed all references to SEAICE_GRID.h fields from
1600        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1601        (cubed-sphere configuration will change a little)
1602      - grid computations in seaice_init are obsolete now.
1603      - cleaned up code a little so that is easier to read (hopefully).
1604      - added new (better?) discretizations of default advection and diffusion
1605        (turn on with SEAICEuseFluxForm)
1606      - replace 1 in 3d global fields by kSurface in growth.F
1607      
1608    checkpoint58a_post
1609    o seaice:
1610      - bug fix in advect.F
1611    o shelfice:
1612      - separate shelfice load anomaly from pload (breaks with time
1613        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1614        Its default is 0., but it may be computed more cleverly from (unknown)
1615        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1616        done offline. A good approximation of the pressure load anomaly is
1617        necessary to avoid large initial adjustment processes underneath
1618        deep-reaching shelfice.
1619      - small fix in ISOMIP shelfice_thermodynamics
1620      - add more sophisticated thermodynamics of Hellmer (1989), this is
1621        now the default
1622      - give a few constants more intuitive names
1623    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1624      if bulk formulae are used in long integration (especially EmPmR). Turn
1625      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1626      if balancePrintMean, the imbalance that is substracted is printed to
1627      STDOUT.
1628    o fix bug (typo) in obcs_apply_eta.F
1629    o add a new package shelfice which enables us to model the circulation
1630      underneath shelf-ice with draughts of hundreds of meters.
1631     - works
1632     - to do: + include improved thermodynamics
1633              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1634                instead of new field kTopC
1635              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1636                instead of new field R_shelfIce and new code in ini_depth.F
1637                and ini_mask_etc.F?
1638              + adjust vertical mixing schemes?
1639    o seaice pkg:
1640     - add a cpp-flag to include a simple formula for a salinity dependent
1641       freezing point of sea water at the surface
1642     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1643       meridional stresses are now different (and hopefully correct)
1644    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1645       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1646       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1647    o pkg/diagnostics: add options and parameters for regional-statistics
1648       diagnostics ; define regions by reading a region-mask from a file
1649       (might add other options later)
1650    o pkg/bulk_force:
1651     - add option and parameters to use AIM surface-flux formulae.
1652     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1653       others forcing fields (defined in PARM05, parameter file "data") are loaded
1654       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1655     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1656     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1657     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1658       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1659     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1660    
1661    checkpoint58
1662    o add "--embed-source" option to genmake2 which, when the supporting
1663      tools can be compiled (as determined by genmake2) will turn on the
1664      embed_files package which then embeds the entire MITgcm source code
1665      (*.[fFhc] + Makefile) used for the build within the executable
1666      - requested by CNH but off by default
1667      - adds a paltry <9MB to the mitgcmuv executable in most cases
1668      - only writes the output when useEMBEDSRC in eedata is true
1669    o clean up 3-dim. relaxation codes:
1670      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1671      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1672      * Thanks to Tom Haine for testing!
1673    
1674    checkpoint57z_post
1675    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1676      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1677    o fix the pickup behavior for obcs in combination with ptracers
1678    o fix a bug in ptracers_external_fields_load
1679    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1680      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1681    o transfered surface NH pressure to eta field (if exactConserv).
1682    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1683         and update lab_sea output.txt file.
1684    o completing 3-dim. relaxation code: additional term
1685         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1686      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1687      * At compile time, in "EXF_OPTIONS.h" set
1688          #define  ALLOW_CLIMTEMP_RELAXATION
1689          #define  ALLOW_CLIMSALT_RELAXATION
1690      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1691          tauThetaClimRelax3Dim = 15552000.0,
1692          tauSaltClimRelax3Dim  = 15552000.0,
1693      * 3 cases:
1694          1) Use a constant-in-time 3-dim. field
1695          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1696          3) Real-time relax. to time-evolving prescribed field
1697    o Adding Laplacian-type smoothness constraint on
1698      initial and boundary (forcing) controls (ic, bc)
1699      * enable at compile-time via
1700        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1701      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1702      * Absolute scale somewhat unclear so far
1703      * no area weighting was included since no other cost term does so far
1704    
1705    checkpoint57y_post
1706    First step for a NLFS adjoint
1707    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1708    o new init. routines for calc_r_star, calc_surf_dr
1709    o still need to deal with ini_masks_etc
1710    o testreport seemed happy
1711    checkpoint57y_pre
1712    
1713    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1714    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1715    o add new offset feature to offline pkg (plus minor cleanup)
1716    o cfc fixes for final year of integration
1717    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1718      be in GCHEM_OPTIONS).
1719    
1720    checkpoint57x_post
1721    o fix testreport Pb in multiple test experiment.
1722    o cleanup our namelist syntax in verification:
1723      - make it more F95 standards compliant (some work still needed)
1724      - allows the vast majority of our tests to work with gfortran
1725    o Non-Hydrostatic:
1726     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1727     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1728    o Allow to apply AB on T,S rather than on AB(gT,gS):
1729     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1730     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1731       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1732     - need a "clever" read_pickup to restart from the other AB formulation
1733    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1734    o remove some unused variables (reduces number of compiler warnings)
1735    o adjoint
1736      * Disable useVariableViscosity for adjoint for time being
1737        (there are a number of extensive recomputations)
1738      * Initialize certain variables needed for adjoint
1739    
1740    checkpoint57w_post
1741    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1742                 fix the singleCpuIO RS version of MDSWRITEFIELD
1743       and add a WARNING if using globalFiles=T with multi-processors.
1744    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1745      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1746    o tracer advection scheme:
1747      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1748       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1749       was not very convenient).
1750      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1751       (further tests needed for the implicit DST & Flux-Limiter schemes).
1752    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1753      and sRef for convenience, handy, when you want to initialize
1754      ptracers in a large domain with a constant non-zero value. Also,
1755      untangle ptracers_init.F a little.
1756    
1757    checkpoint57v_post
1758    o change dome exp. to use variable viscosity in side-drag terms.
1759    o remove all the files from the cfc_offline test since they are now
1760      incorporated into tutorial_cfc_offline which has been producing
1761      identical results for a few days of testing
1762    o add new parameter: sideDragFactor to enable half-slip-side BC
1763      and change side-drag S/R to use viscosity from mom_calc_visc
1764      (can switch back by setting sideDragFactor=0.); affects results at
1765      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1766       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1767    o vorticity & strain are now computed without masking, to account for
1768      no-slip-side BC in variable viscosity calculation ; mask is applied
1769      anyway later on, before computing advection/coriolis terms.
1770    o modify exp4 to test new obcs support for reading from external files
1771      and for passive tracers
1772    o fix behavior of ptracers_monitor when monitor output is written to a
1773      netcdf-file; still not independent of monitor.F (writes in the same
1774      file).
1775    o change default value of tRef (put a uniform, meaningful value for ocean
1776      & atmos) and initialize sRef (was missing, as Martin mentioned).
1777    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1778      to be proportional to enstrophy dissipation length.  Thus,
1779       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1780      This is now consistent with Smagorinsky and with the manual.
1781    
1782    checkpoint57u_post
1783    o OBCS and PTRACERS: add open boundary support for passive tracers
1784      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1785        OB-values from file; this is not different from the way theta and salinity
1786        are treated
1787      - however, Orlanski-radiation conditions are not supported, and the model
1788        will stop if you use pTracers and Orlanski at the same time.
1789      - beefed up the rountine obcs_external_fields_load: now only those open
1790        boundary values are overwritten with values from files for which there
1791        are really files, otherwise the OB-fields remain untouched. This makes
1792        it possible to use different OBs at different ends of the domain (as
1793        with EXF)
1794    o reduce number of exch calls in shap_filt (s2).
1795    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1796      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1797    
1798    checkpoint57t_post
1799    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1800    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1801      same truncation, independent of the face number: affects affects several
1802      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1803    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1804      note that biharmonic viscosity + no-slip was not tested in any experiment.
1805    o fix bug in non-linear free-surf side-drag ; generate new output for
1806      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1807    o make mnc honor the writeBinaryPrec flag for most kinds of output
1808    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1809    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1810      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1811    o add brackets in multi-terms sum to get same truncation, independent of
1812      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1813      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1814    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1815      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1816      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1817      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1818      Suggested values of viscosity parameters found in mom_calc_visc.
1819      Many new viscosity diagnostics available.
1820    
1821    checkpoint57s_post
1822    o Add clearing-house for viscosity calculations, mom_calc_visc and
1823      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1824      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1825      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1826      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1827      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1828      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1829      ViscAhStrain and viscAhTension are now retired.
1830    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1831    o In response to JMC's bug report, genmake2 now ignores any soft-links
1832      that it finds in the *current* directory when searching for files.
1833      Soft-links found in any other source directories will still work as
1834      they did before.
1835    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1836      a C routine to unlimit the stack size
1837    o mnc-ify pkg/aim snapshot vars
1838    o mnc-ify pkg/land as requested by Daniel
1839    o various changes to mnc including:
1840      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1841      - output can now be grouped so that all files within a group
1842          change the ITER portion of their names in lock-step together
1843      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1844          and works with both EXCH1 and EXCH2 (but needs more testing)
1845      - writing works for all verification test cases w/ g77 on Linux
1846    
1847    checkpoint57r_post
1848    o make MNC variable initialization happen earlier
1849    o add diagnostics for (almost) each term of the momentum Eq.
1850    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1851    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1852    o remove MINIMAL_TAVE_OUTPUT option ;
1853      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1854    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1855      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1856    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1857    o add time-dependent SST, SSS control
1858    o cost terms in ecco/ modularized (new cost_generic.F)
1859    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1860    o new infrastructure for seaice model vs. obs misfits in seaice/
1861      * driver from the_main_loop.F is seaice_cost_driver.F
1862      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1863      * gradient check in Exp. 6a of natl_box_adjoint/
1864    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1865      (see README file)
1866    
1867    checkpoint57q_post
1868    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1869    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1870      - bug was reported by Jean-Michel and Ian Fenty
1871    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1872      update exp. cpl_aim+ocn output.
1873    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1874      Needed for high-res. runs with large global files
1875      to be able to limit tapelev size
1876    o Changed some tests for adjoint:
1877      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1878      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1879      * global_ocean.90x40x15/ back to default 3-level checkpointing
1880    o Modifications to enable scripted COMMON to MODULE conversion
1881      * verification/OpenAD/code/ has necessary scripts and description;
1882      * converts, compiles and runs successfully;
1883    
1884    checkpoint57p_post
1885    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1886    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1887      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1888    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1889    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1890      (was already the case for dissipation with mom_vecinv,
1891       and also the case for grad.PhiHyd when staggered-timeStep)
1892      This will allow to put dissipation out-off the AB time-stepping.
1893     Unfortunately, affects truncation error. Update output of exp. that "fails"
1894      (cg2d matching number) and leave the others for later: front_relax(10),
1895      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1896      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1897    
1898    checkpoint57o_post
1899    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1900      (2) its ready to be documented during the 20050801 DocFest
1901    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1902      for ideal_2D_oce and lab_sea on linux_ia32_g77
1903    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1904      in global1x1_tot/code_seaice_adj to access indices 32, 33
1905      (worth another tag)
1906    
1907    checkpoint57n_post
1908    o adding precip control xx_precip 32
1909    o adding swflux control xx_swflux 33
1910    o Replacing 10 forcing penalty cost routines by 1 generic.
1911    o Implementing partitioning in time-mean and variable adjustment
1912      for atmos. state.
1913    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1914    o in natl_box_adjoint:
1915      * updated exp 1 to 10
1916        (but does not have time-mean vs. variable split results yet)
1917    o updated global1x1/*_seaice_adj/
1918      to incorporate latest changes
1919    o enable useSingleCpuIO for mdsio vector routines
1920      (applies in particular to tapelev I/O)
1921    o removed inefficient K-loop in all active_file*control*.F
1922    
1923    checkpoint57m_post
1924    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1925      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1926    o pkg/exch2: filling of face-corner halo regions is optional
1927      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1928    
1929    checkpoint57l_post
1930     tag before updating tutorials (pre-release-2)
1931    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1932       for output and interpolation of input fields onto model grid)
1933    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1934       Affects results of exp. rotating_tank ; update output.txt.
1935    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1936          and taking the square quantity and/or using a fraction-weight field.
1937    o fix aim_diagnostics_init.F mate numbers.
1938    o add mnc output capability to diagnostics/diagstat and update
1939      our cvsignore files for the ACSII output generated
1940    
1941    checkpoint57k_post
1942    o lab_sea now uses diagnostics package and provides a suite of
1943      new EXF diagnostics output.
1944    
1945    checkpoint57j_post
1946    o exf
1947      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1948        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1949        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1950      * extended diagnostics output
1951        - now includes all EXF variables
1952        - hs, hl moved to common block
1953        - separate S/R for diagnostics, called after ctrl vector is added
1954        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1955        - EXFqnet contains true Qnet (i.e. includes qsw)
1956      * updated verif. lab_sea, global_with_exf
1957      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1958        to ensure that diagnostics sees a true EXFqnet
1959    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1960    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1961      several times with different frequencies.
1962    o mnc-ify the thsice package as requested by Daniel Enderton
1963      - the monitor--MNC output needs work
1964      - many attributes need to be added (most are currently blank)
1965    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1966      - many attributes need to be added (most are currently blank)
1967    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1968    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1969    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1970      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1971         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1972    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1973     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1974    
1975    checkpoint57i_post
1976    o Diagnostics package was changed: diagnostic allocation is now deactivated
1977      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1978    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1979      add 1rst Order upwind vertical Shear.
1980    o add a quick fix for A/B checkpointing in OFFLINE mode
1981    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1982      end-run around the C/Fortran linking horror in eesup/src/timers.F
1983    o added pkg/runclock: allows user to terminate run based on wall clock
1984    o added non-hydrostatic scaling parameter: nh_am2
1985    o pkg/my82: futile attempt to make results compiler-independent by adding
1986      some "_d 0", etc. no effect.
1987    o for mnc output, fill the 'T' coordinate var with myTime and create a
1988      separate 'iter' variable for iteration count
1989    o pkg/diagnostics:
1990      add new capability: output of Global/Regional & per-level statistics ;
1991      tested against monitor output (including land & thSIce) on various exp.
1992    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1993    
1994    checkpoint57h_done
1995      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1996      data.diagnostics, data.gchem, data.ptracers) is done.
1997    
1998    o pkg/diagnostics: prepare for Global/Regional statistics.
1999      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2000    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2001      and rename it: DIFFERENT_MULTIPLE
2002    
2003    checkpoint57h_post
2004    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2005    o pkg/diagnostics: change output frequency, now in seconds (instead
2006      of Nb of iterations). This requires to change data.diagnostics.
2007    checkpoint57h_pre
2008    
2009    o in mnc, let the user create the output dir if both mnc_outdir_date
2010      and mnc_outdir_num are false
2011    o add fflags() to pkg/diagnostics which allows one to specify, on a
2012      per-file basis, the file precision [default behavior is unchanged]
2013    o added diagnostics to pkg/kpp, including computation of mixed layer
2014      depth based on a temperature/density criterion
2015    o updated verification/natl_box to test the new pkg/kpp diagnostics
2016    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2017    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2018    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2019      not mnc -- this mistake was found by JMC and is now corrected
2020    
2021    checkpoint57g_post
2022    o add Adams-Bashforth 3rd Order time stepping:
2023      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2024      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2025    checkpoint57g_pre
2026    
2027    o make lambda[Theta,Salt]ClimRelax spatially varying
2028      (default remains spatially uniform constant based on tau)
2029    o added new control variables
2030      * init. uVel, vVel, etanN
2031      * lambda[Theta,Salt]ClimRelax
2032    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2033      (suggested by G. Forget)
2034    
2035    checkpoint57f_post
2036    o add parameter "baseTime" = model base time = time at iteration zero
2037      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2038      account for baseTime shift
2039    o move Coriolis arrays from PARAMS.h to GRID.h
2040    checkpoint57f_pre
2041    
2042    o mnc-ifying the seaice package
2043    o introduced an alternative length scale calculation for use in the limiting
2044      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2045    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2046    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2047      as well as grad(vort3).  Made it compatible with both approximate form
2048      for the cubed sphere and full form of these gradients.  Added flag
2049      useFullLeith to select between approximate and full form.  
2050    o add "d0" in getcon.F to reduce differences between compilers/platforms
2051      update output.txt of exp. fizhi-gridalt-hs
2052    o change port_rand funtion to allow to set the seed.
2053    o fix obscure MNC bug involving conversion between reals and integers
2054      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2055        new version is now more standards-compliant
2056    o adjoint-related modifications
2057      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2058      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2059      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2060    
2061    checkpoint57e_post
2062    o Adding eddy stress controls a la Ferreira et al.
2063    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2064    
2065    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2066      update output.txt of exp. fizhi-gridalt-hs
2067    o add more "Z" dimensions and associated coordinate vars to MNC
2068    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2069    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2070      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2071      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2072      months and years.  Requires pkg/cal.
2073    o diagnostics: add pickup functionality
2074      - off by default for backwards compatibility
2075      - current version only uses MDSIO -- MNC will be added
2076    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2077    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2078    
2079    checkpoint57d_post
2080    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2081    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2082      output from the diagnostics package
2083    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2084    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2085      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2086    o add coordinate variables to the MNC output from the diagnostics package
2087    o change MNC-flags default value: true when useMNC=TRUE
2088    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2089      the ability (off by default) to read the grid information using MNC
2090    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2091    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2092    o do snap-shot diagnostics at the middle of the time-interval (instead of
2093      at the end).
2094    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2095      new test for AIM with thSIce + slab-ocean
2096    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2097    o move state variable diagnostics to the beginning of the time step ;
2098      (note: still needs some work specially for snap-shot diagnostics)
2099      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2100    
2101    checkpoint57c_post
2102    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2103    o generate new output.txt files on faulks with g77 & the new -ieee option
2104    checkpoint57c_pre
2105    
2106    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2107      update output.txt of exp. global_ocean.90x40x15
2108    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2109      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2110    o add saltFlux(+File) forcing capability with periodicExternalForcing
2111    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2112    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2113    o improvements for the MNC output from DIAGNOSTICS:
2114      - correct handling of the unlimitied dimension
2115      - all dims now have associated coordinate variables
2116      - variables located at U, V, and Corner ("Z") points are now written
2117        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2118        *all* data points are output
2119    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2120    o added pkg/seaice/seaice_monitor.F
2121    o mdsio_readfield.F can now read files visible only to master MPI process.
2122    o pkg/seaice: some test code for ice-modified ocean stress
2123    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2124      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2125      spurious negative numbers for precipitation and humidity.  Will cause
2126      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2127    o pkg/ctrl/
2128      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2129        May be enabled via doPackDiag
2130      *  introduce z-scaling of
2131         + gradient (doZscalePack) and
2132         + control (doZscaleUnpack)
2133    o pkg/mdsio/
2134      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2135      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2136    
2137    checkpoint57b_post
2138    o simplify options in diagnostics_fill arguments (remove weird combinations)
2139    o fix MNC coordinate variables so that they now contain per-face index
2140      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2141      general, EXCH2 grids are only aligned to a "local" coordinate system
2142    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2143    o Implement instantaneous output within pkg diagnostics:
2144      setting a negative frequency in data.diagnostics produces
2145     "snap-shot" output (as opposed to time-average if freq > 0)
2146    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2147      NOTE: change ptracer diagnostics name: use 2 characters to work with
2148            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2149    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2150      becomes the coordinate variable for the 'T' dimension
2151    o add CF-style coordinate variables to MNC
2152      - just a first cut:  numbers are meaningless on the cubesphere and
2153        missing along the T axis but otherwise it works!
2154    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2155    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2156    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2157      this is based directly on what the model compute, so that the content of
2158      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2159    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2160    o clean up build options files for SunOS, in particular
2161      - remove -traditional from xmakedepend
2162      - change -xarch=v9 to -xarch=native for f77
2163      - restore use of make (not gmake)
2164      - add CC=gcc if using g77
2165    o changes per discussion of AM, JMC, & EH3 today:
2166      - move redundant "grid" variables out of "state" -- in preparation of
2167        creating proper CF-style coordinate variables and in recognition
2168        that any/all grid variables can be easily copied (eg. w/NCO) from
2169        the grid files into any of the other NetCDF files
2170      - *always* output grid variables with MDSIO (this will eventually be
2171        changed)
2172      - output MNC grid file if useMNC is true
2173    o every instance of _END_MASTER() has been found and replaced with
2174      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2175      preprocessors
2176    o re-arrange diagnostics pkg initialisation:
2177     - allow each package to extend the available diagnostics list
2178     - add some checking and fix small problems (multi-threaded, ...)
2179     - new S/R diagnostics_fill (replace fill_diagnostics):
2180       look through the short list of active diag. (instead of the long list)
2181       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2182    
2183    checkpoint57a_post
2184    o this set of changes restores TAMC compatibility
2185      tested for global_ocean.90x40x15 adjoint on trough
2186      (what a pain)
2187    
2188    checkpoint57a_pre
2189    o some modifs in tools/build_options for sunos
2190    o call ctrl_pack for ctrl at end for optimcycle=0
2191    
2192    checkpoint57
2193    o add horizontal bi-harmonic viscosity for vertical velocity
2194      - new parameter viscA4W (defaults to viscA4)
2195      - affects only non-hydrostatic code
2196      - to be done: no-slip lateral boundary conditions
2197    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2198    o implement Implicit Vertical advection for pTracers
2199    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2200      (implemented also for implicit vertical diffusion & advection)
2201    o OBCS: extend application of tracer open boundary conditions
2202      to a strip beyond the boundary of width Olx/Oly
2203    o add call monitor to TAF set of required calls (flow directives)
2204      and include in natl_box_adjoint
2205    o untangle a few ifdefs related to cost, ctrl, autodiff
2206      untangel a few ALLOW_ECCO_OPTIMIZATION
2207    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2208      (theta2, salt2 in ecco_cost_weights)
2209    
2210    checkpoint56c_post
2211    o OBCS as control variables
2212      - update ctrl_ad_diff.list, obcs_ad_diff.list
2213      - remove balance of obcs controls from default
2214      - fix index bug nobcs in ctrl_init
2215      - fix dummy fields filen in ctrl_pack
2216      - add dummy weights for obcs
2217    o lsopt: comment out fort.94 output
2218    o optim:
2219      - remove unnecessary header files
2220      - adjusted namelists
2221      - add xerbla.F to Makefile
2222    o exf:
2223      - multiple modifications of exf_check_range
2224      - unit change in exf_init_runoff from [m/year] to [m/s]
2225    o mdsio:
2226      - i/o-vector change debugLevel from debLevA to debLevB
2227    
2228    checkpoint56b_post
2229    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2230      is called from DO_THE_MODEL_IO
2231      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2232      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2233      - clean up PTRACERS_WRITE_TIMEAVE a little
2234    o add another verification experiment that tests both the cfc-pkg and
2235      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2236      reactive tendencies treated inline with regular timestepping
2237    o testreport previously did a lousy job of comparing small numbers, so
2238      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2239      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2240      testreport.
2241    o ptracers_monitor: bug fix for MPI
2242    
2243    checkpoint56a_post
2244    o GCHEM: finish reorganizating the package
2245      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2246        (introduces another 3D-array for each passive tracer, but only if
2247        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2248        gchemTendency is not needed because the timestep is done separately)
2249      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2250      - GCHEM is now---more or less cleanly---separate from PTRACERS
2251      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2252        so clear to me how that should be done in a general way.
2253    o CFC: improve formatting of output in CFC_ATMOS
2254    o PTRACERS:
2255      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2256        that ALL experiments with ptracers enable can be checked. This makes
2257        GCHEM_MONITOR obsolete.
2258      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2259        monitorFreq
2260      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2261    o add PTRACERS (PTR0[1-5]) to testreport output
2262    o exf_check_range:
2263      * default changed to .TRUE.
2264      * will check values for niter0 if debLevA, every timestep if debLevB
2265      * STOP in exf_check_range if 'out of range'
2266      * range chosen generous to allow for potential extema
2267      TBD: a version with stricter range
2268           permitted range would be runtime parameters
2269    o GMredi:
2270      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2271      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2272      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2273    o GCHEM:
2274      - move call to GCHEM_FORCING_SEP, so that it is now called before
2275        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2276      - introduced a useGCHEM runtime flag and applied it everywhere.
2277      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2278        this flag is now only visible within GCHEM-pkg routines.
2279      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2280        be replaced by a 3D array that is computed before thermodynamics; for
2281        this, the tracer ID iTracer had to be included into the parameter list
2282        of ptracers_forcing
2283      - set up forward_step to call gchem_forcing, that will replace
2284        gchem_forcing_int in ptracers_forcing
2285      - cleaning up
2286    o small cleaning of exch2: remove files that are also in eesupp/src
2287    
2288    checkpoint56
2289    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2290    o mnc: cleanup "full" files--fixes out-of-memory problem
2291    o ECCO-GODAE
2292      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2293      * fully merged and updated from SIO code
2294        windstress sign change affects
2295        - exf_inscal_[u/v]stress
2296        - sign of xx_tau[u/v] adjustments
2297        - signs in cost_scat
2298      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2299      * natl_box_adjoint updated and compressed
2300      * 2-level checkpoint switch added
2301        (tested in EXP. 1 of natl_box_adjoint)
2302      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2303    o SVD
2304      * first complete, non-hacked version for SVD calculations
2305      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2306        performed via direct access files admtlm_vector.it????
2307        (via ctrl_[un]pack)
2308      * optimcycle is used for ARPACK iteration counter
2309        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2310      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2311        and add linear transforms where necessary
2312      * controls are initial/final SST, SSS (can be extended; need to check
2313        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2314    o mdsio: filename info to both stderr, stdout
2315    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2316      from sign change
2317    
2318    checkpoint55j_post
2319    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2320      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2321    o add consistent build directories and .cvsignore files to verification
2322    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2323    o make all subroutines 30 or less characters in length for certain older
2324      compilers to work (a thorough search only turns up two routines in
2325      pkg/ptracers)
2326    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2327      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2328    
2329    checkpoint55i_post
2330    o change arrays for total vertical diffusivity (2.D if explicit,
2331      3.D if implicit) ; each ptracer uses its own background value.
2332    o added mnc/NetCDF output capability to ocn_compon_interf
2333      - added bits to verification/cpl_aim+ocn so that it can run on
2334        ITRDA and other clusters without the mpirun "-wd" option
2335    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2336      configuration
2337    o give MNC the ability to create additional files rather than
2338      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2339      - the default is just less than 2GB which is a practical limit
2340        on many systems
2341    o Compute the non-local term using either KPP vertical diffusivity (=default)
2342       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2343    
2344    checkpoint55h_post
2345    o add verification test "vermix"
2346    o remove all the *_ioinc flags and replace with the single global
2347      outputTypesInclusive flag
2348    o allow to set a vertical profile of vertical diffusivity for T & S
2349    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2350    o useMNC moved from data.mnc to data.pkg
2351    
2352    checkpoint55g_post
2353    o Renaming carbon AD experiments to comply with testreport conventions
2354    o Updating adjoint of Held-Suarez hs94.1x64x5
2355    o Fixing directives for non-ECCO forward_step, after ECCO directives
2356      have been fixed to avoid recomp. of do_oceanic_phys
2357      Works well for global_ocean.90x40x15,
2358      but recomp. issue remains for carbon
2359    o Updating adjoint output for natl_box_adjoint after
2360      pkg/ecco has been modified (see taga c55d_post)
2361    
2362    checkpoint55f_post
2363    o rename to timeave_init_fixed
2364    
2365    checkpoint55e_post
2366    o some delicate re-shuffle of store directives to avoid one
2367      extra call of do_oceanic_physics
2368      affects ecco_the_main_loop.F, do_oceanic_physics.F
2369      checkpoint_lev1_directives.h
2370    o NB: this may break global_ocean adjoint temporarily,
2371      but it is clear how to fix it. Will do later, need this now.
2372    
2373    checkpoint55d_post
2374    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2375    o ecco_cost_weights is modified to 1x1 runs
2376    o modifs to allow observations to be read in as
2377      single file or yearly files
2378    o enable to read exf forcing fields as either
2379      single file or yearly files (flag useExfYearlyFields)
2380    checkpoint55d_pre
2381    
2382    o switch between 2-level and 3-level checkpointing
2383    o add ability of MNC to write local and "partial" (eg. 2D slices where
2384      the full 3D field is never actually stored) arrays to NetCDF files
2385      with the correct (that is, the complete multi-dimensional) set of
2386      array indicies
2387      - used in mom_vecinv() to write the diagFreq output
2388      - tested (demonstrated) in verification/aim.5l_cs
2389    o further mnc-ification
2390      - add verification/lab_sea to the list with mnc setups
2391      - fix undefined mnc v-names in cd_code
2392      - add kpp to mnc output (both snapshot and timeave)
2393    o non-hydrostatic code
2394      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2395        in calc_gw.F
2396      - defaults to viscAh
2397      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2398        friction or Leith) in non-hydrostatic mode, as long as there is
2399        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2400    o pkg/cost
2401      extend simple cost functions to treat time mean quantities
2402      (T,U,V) via cost_accumulate_state from cost_tile
2403    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2404        be 2 times larger than the minimum size the advection scheme requires.
2405        now get a perfect conservation of salt in advect_cs test-exp (updated)
2406    o GGL90 (Gaspar's TKE mixed layer)
2407      - add horizontal diffusion of TKE, requires exchanges in
2408        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2409        default. In OPA there is no horizontal diffusion of TKE but the
2410        mixing coefficients are computed from a horizontal average of TKE of
2411        6 points or so. I think that diffusion has a little more physical
2412        justification.
2413      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2414        was in vain)
2415      - mask tke-variable in ggl90_init
2416    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2417    o fix biharmonic diffusion on CS-grid.
2418    o more obcs stuff
2419      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2420        for reading boundary values. This routine is called from
2421        obcs_prescribe_read
2422      - updated obcs_check
2423      - changed sponge layer relaxation parameter units for days to seconds
2424      - turned off sponge layer by default
2425      - changed argument list of OBCS_CALC to myTime+deltaTclock
2426      - fixed about 35 bugs in obcs_external_fields_load
2427    
2428    checkpoint55c_post
2429    o obcs stuff
2430      - new runtime flags useOBCSprescribe, useOBCSbalance
2431      - re-arranged obcs_calc
2432      - moved exf_getobcs to obcs_prescibe_read
2433        obcs_prescibe_read is called after ORLANSKI stuff
2434        and independent of it (executable can contain all).
2435      - updated obcs_check
2436      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2437        These may be necessary only if tangential velocities are
2438        prescribed at OB, not sure, needs testing.
2439    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2440      which simplifies the calls and passes the ifc check-bounds test
2441    
2442    checkpoint55b_post
2443    o add a 2D scalar, Z location, exchange_2 routine.
2444    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2445      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2446      affects advect_cs results (for the wrong reason): update output.txt
2447    o use a more standard discretization for biharmonic viscosity ;
2448     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2449      affects results of dome set-up: update output.txt
2450    o fix gad_advection.F (CubedSphere part), back to version 1.23
2451    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2452    
2453    checkpoint55a_post
2454    o merged code to
2455      * prescribe/read time-dependent open boundaries
2456        (works in conjunction with exf, cal)
2457      * sponge layer code for open boundaries
2458      * each boundary N/S/E/W now has its own CPP option
2459        (healthy for the adjoint)
2460    
2461    checkpoint55
2462    o up-to-date adjoint of previous breaks
2463      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2464      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2465      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2466      - carbon: * remove tr1-related adjoint verification
2467                * add ptracer as control variable
2468    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2469      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2470    
2471    checkpoint54f_post
2472    o in verification/carbin/ remove experiment related to
2473      ALLOW_PASSIVE_TRACER (array tr1 etc)
2474      code_ad/ input_ad/ results_ad
2475    
2476    o add two new packages
2477      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2478        + subject to optimization (memory)
2479      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2480        + subject to reordering (many GOTOs in the original code)
2481        + so far opps is called for every (i,j) point, and then operates in
2482          the vertical; one may want to reorder the scheme in order operate in
2483          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2484          fields)
2485    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2486      - all verification tests compile and run with linux_ia32_g77
2487      - defaults are compatible with current input files--nothing
2488        should change if you were not previously using MNC
2489      - MNC output has been added in numerous places (eg. timeave)
2490        but there are still a few writes not yet do-able with MNC
2491        (this is in progress)
2492      - flags now allow for either/or/both use of MDSIO and MNC and
2493        documentation will soon follow
2494      - numerous small formatting cleanups for ProTeX
2495    o add version info (via BUILD_INFO.h) to MNC and stdout
2496    
2497    checkpoint54e_post
2498    o add two new packages
2499      - pp81 (Packanowski and Philander, 1981), Richardson number and
2500        stratification dependent mixing
2501      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2502      - these scheme operate in a similar manner as KPP (without ghat, of
2503        course), however there is only one diffusivity that is used for both
2504        temperature and salinity (and passive tracers)
2505    o add offline package
2506    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2507      provided by Stephanie Dutkiewicz
2508    o genmake2: add ability to search for C compilers and cleanup test output
2509      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2510    
2511    checkpoint54d_post
2512    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2513    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2514      leading to additional shift by 5 days each year of integration
2515       (i.e. leading to considerable offset over the years)
2516    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2517    o start with no AB and no initial filtering (staggerTimeStep):
2518      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2519    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2520      (external loading & cpl import/export stay in forward_step.F)
2521    o update coupling interface to work with new staggerTimeStep
2522    o change MDSIO ptracers_pickup.
2523    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2524    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2525    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2526    
2527    checkpoint54c_post
2528    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2529      this affects (truncation error) output.txt of test-exp:
2530       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2531    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2532    o change Qnet to always be the net heat flux, (+upward).
2533      affects (truncation error) output of natl_box exp.: updated
2534    o define the max number of passive tracers in PTRACERS_SIZE.h
2535    o start to test mnc routinely in exp0
2536    o add sea-ice loading (sIceLoad) as a new forcing field.
2537    
2538    checkpoint54b_post
2539    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2540       impressive on Altix and Opteron systems)
2541    o diagnostics can now write NetCDF files through the mnc package
2542    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2543    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2544    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2545      affects (truncation error) output of lab_sea & natl_box exp.: updated
2546    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2547    
2548    checkpoint54a_post
2549    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2550    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2551    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2552    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2553      + internal_wave (shift in writing cg2d_ini_res)
2554    checkpoint54a_pre
2555    
2556    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2557      - modified verification/lab_sea and natl_box_adjoint accordingly
2558    
2559    checkpoint54
2560    checkpoint53g_post
2561    o prepare splitting of thermodynamics: store convect.counter in common block
2562    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2563      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2564    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2565    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2566    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2567    o restore adjointability
2568    
2569    checkpoint53f_post
2570    o modifications that affect AIM experiment results (update output.txt):
2571      - no advection of S at top interface Nr (pkg/generic_advdiff)
2572      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2573    o AIM pkg:
2574      - include stability function into surf.Flux derivative relative to Tsurf
2575      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2576    
2577    checkpoint53e_post
2578    o merged cylindrical coord configuration
2579    o added rotating_tank experiment
2580    checkpoint53e_pre
2581    
2582    checkpoint53d_post
2583    o faulks upgraded: re-generate output.txt that have changed:
2584       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2585    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2586    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2587    o added Sadourny discretization of Coriolis
2588      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2589      - re-enabled use of omega3 (useAbsVorticity)
2590    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2591      vector-invariant equations
2592      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2593    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2594      hopefully without new bugs
2595      - still to do: biharmonic friction for non-hydrostatic w
2596    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2597    o regenerated output for global_ocean_ebm (using -ieee)
2598    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2599      of mom_common/
2600      - simple re-arrangement of instructions within computing loop
2601    checkpoint53d_pre
2602    
2603    checkpoint53c_post
2604    o new version of coupler for AIM+thSIce and Ocean models
2605     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2606     - land: change Evaporation of snow
2607     - aim with thSIce: fix bug in snow-precip.
2608    o changes to calc_gw.F
2609     - bug fix for w^2 term near the bottom boundary
2610     - (hopefully) improve the lateral slip boundary condtions for use with
2611        partial/looped cells
2612      - because the bug fix changes two verification experiments anyway (exp5
2613        and plume on slope), change the lateral boundary condition from half slip
2614        to the value of no_slip_sides
2615    o ebm package wasnt quite up to the parallel task. Fixed that.
2616    o Adjoint of EBM package + verification
2617      * TLM OK
2618      * ADM not sufficient accuracy yet (needs further testing)
2619    
2620    checkpoint53b_post
2621    o Commiting new energy balance model to repository
2622      * package is pkg/ebm
2623      * verif. is verification/global_ocean_ebm
2624      * references are in ebm_driver.F
2625    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2626    C        Global thermohaline circulation. Part I:
2627    C        Sensitivity to atmospheric moisture transport.
2628    C        J. Climate 12(1), 71-82
2629    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2630    C        Global thermohaline circulation. Part II:
2631    C        Sensitivity with interactive transport.
2632    C        J. Climate 12(1), 83-91
2633    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2634    C        Destabilization of the thermohaline circulation
2635    C        by atmospheric eddy transports.
2636    C        J. Climate 7(12), 1870-1882
2637    o Will need long integration testing.
2638    checkpoint53b_pre
2639    
2640    o created pkg/mom_common in preparation for variable viscosity code
2641    o renamed and split ini_mnc_io
2642    o pkg/land: only liquid water can diffuse or run-off
2643    o AIM using land: soil wetness availability account for snow
2644    o added printMapIncludesZeros to EEPARMS namelist
2645    
2646    checkpoint53a_post
2647    o restore TAMC compatiility for exf_constants.h
2648      (no usage of _d in .h)
2649    o Additional storing in KPP in an attempt to fix
2650      TAMC problem with adjoint of KPP code.
2651      (no success...)
2652      Identical code works fine with TAF.
2653    o Fixed verification/natl_box_adjoint experiments.
2654      Initial conditions for Experiments 4 and 5 are now
2655      set to "SEAICE_initialHEFF=0", which is more reasonable,
2656      and hence gives results closer to that of Experiment 2.
2657      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2658    
2659    checkpoint53
2660    o stable checkpoint with up to date adjoint
2661      TLM tests only run for 1st grdchk at the moment. Its unclear if
2662      this is a code problem or a problem with resetting code for g_
2663      variables that is being autogenerated wrong.
2664      Otherwise:
2665       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2666       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2667         are both still in chaos following their security messes.
2668    
2669    checkpoint52n_post
2670    o various build (mostly genmake2) changes including:
2671      - ability to build/run more easily within Cygwin and MacOS X
2672      - more complicated Makefiles with a stronger dependence on Gnu Make
2673    o pkg/seaice modifications
2674      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2675        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2676        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2677      - changed proxy for geostrophic velocity and updated
2678        verification/lab_sea/results/* accordingly
2679      - removed ADI dynamic solver from pkg/seaice
2680      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2681        they caused a segmentation fault under certain circumstances
2682      - removed unused field WATR
2683    o bug fix in exf-package:
2684      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2685         now reflect that.
2686    o small fixes in the cal-package:
2687      - set reference date to first of January for the 'model'-calendar
2688      - failing of cal_CheckDate in cal_FullDate now actually results in a
2689        warning
2690    o small modifications in exf-package to increase flexibility:
2691      - change climtempfreeze from a constant to a runtime parameter that
2692        is specified in data.exf_clim (default = -1.9)
2693      - introduce runtime parameter windstressmax (default = 2.0) that is
2694        specified in data.exf
2695    o fix in pkg/thsice:
2696      - update Evap (Tsf changes) to be consistent with Latent heat flux
2697      - maintain snow precipitation unchanged (even if Tsf >=0).
2698     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2699    
2700    checkpoint52m_post
2701    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2702      this does not change any of the results, because myIter=0 in swfrac always
2703      lead to jwtype=2 (the default anyway), but the call makes little sense
2704      as a default
2705    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2706    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2707      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2708    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2709    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2710    o extending useSingleCpuIO option to work with new exch2 I/O format
2711      - old-style, missing-tile I/O is still accessible by defining CPP
2712        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2713    o monitor package can write to NetCDF files and/or STDOUT
2714    o fix re-definition bug in MNC_GRID_INIT_ALL()
2715    o doc/api_reference added
2716      - a framework for building an API Reference Manual using all
2717        the "protex" comments embedded in the code
2718      - see pkg/generic_advdiff, pkg/mnc for examples
2719    o MNC:
2720      - make myThid the last argument for all subroutines
2721      - new default for the grid files: NO halos
2722      - add useMNC and other run-time flags
2723      - separate per-file-group handling of the unlimited dimension
2724      - early initialization of MNC w/ flags read at the eeboot stage
2725        and lookup tables set in initialize_fixed
2726      - write all MNC output to a freshly-created directory
2727    o thermodynamics sea-ice (thsice) is now tested with testreport.
2728    o test exp. advect_cs: use the standard cs32 grid ; update output.
2729    o Added functionality to grdchk:
2730      pick global i,j,k position (or nearest wet) where to perform check.
2731    
2732    checkpoint52l_post
2733    o new land formulation:
2734      a) use ground enthalpy as prognostic variable to ensure exact
2735         energy conservation.
2736      b) account for water temperature and for latent heat of freezing
2737         in all processes (rain, run-off, ground storage)
2738      c) compute surface and ground temperature implicitly.
2739    o aim_v23 modification for new land model:
2740      a) Treat separately land / ocean / sea-ice surface fluxes
2741         to allow implicit computation of land & sea-ice surface temp.
2742      b) add snow precipitation.
2743    checkpoint52l_pre
2744    
2745    o fix problem (when 1 tile is empty) in min/max monitor.
2746    o fix bug in timeAve (u,vZetatave in common block)
2747    o no restoring terms under ice for pkg/seaice
2748    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2749    o bug fix for pkg/seaice pickups
2750    o change MNC call locations and add coordinate attributes
2751    o mask vorticity at the corner ; affects global_ocean.cs output
2752    o fix ini_curvilinear_grid ; test CS experiments with mpi
2753    o aim.5l_cs: modify sea-ice fraction input file ; update output
2754    o exf: Adding simple range check routine for exf fields after read
2755    
2756    checkpoint52k_post
2757    o removed top-level directory "diags"
2758      - we migrated these functions to pkg/timeave a long time ago
2759    o fixed bug introduced in pkg/monitor
2760    o accuracy ctrlprec = 32 insuffient for gradient checks using
2761      averaged fields (I/O via cost_averages)
2762      -> use ctrl.h in active_file*.F to control I/O precision.
2763    o paramter list of CALL ADTHE_MAIN_LOOP
2764    o added initial do_the_model_io to ecco
2765    o set all ...Freq to zero after cost_final
2766      taveFreq, dumpFreq, pChkptFreq
2767    o MAIN and ECCO differentiability restored
2768    
2769    checkpoint52j_post
2770    o fix nchklev in tamc.h for global_ocean...
2771    o Bringing flow and store directives up-to-date
2772    o Really weird thing!
2773      call do_the_model_io from the_main_loop with parameters
2774      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2775      TAF places a faulty re-call of initialise_varia
2776      after cost_final call which should not be there!
2777    checkpoint52j_pre
2778    
2779    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2780      error messages
2781    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2782    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2783      debug output
2784    o modfied mdsio_writefield.F to handle non-global files under exch2
2785    o update AIM Cubed-Sphere exp (aim.5l_cs):
2786      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2787    o update AIM Equatorial Channel exp:
2788      use standard aim_v23 pkg and change the SST fields to be more realistic.
2789    o globalFile now works with exch2
2790    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2791      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2792    o limit timeave output for hi-res integrations
2793    
2794    checkpoint52i_post
2795    o removed CPP_EEOPTIONS.h from verification/*/code
2796    o updated the tiling for global_ocean_pressure
2797    checkpoint52i_pre
2798    
2799    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2800      the old pkg/aim).
2801    
2802    checkpoint52h_pre
2803    o shortened offending lines in exch2_send_rx?.template
2804    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2805    o genmake2: add build & execute test for NetCDF code
2806    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2807      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2808    o added useSingleCPUIO flag to monitor.F and mon_out.F
2809    o added temporary hack for sea-ice dynamics on the cube:
2810      metric terms are ignored and it is assumed that
2811      there is no sea-ice on cube faces 1, 2, 4, and 5.
2812    
2813    checkpoint52f_post
2814    o added exch2 cube routines to pkg/exch2
2815    o modified hs94.cs-32x32x5 to use it
2816    o added new grid files to hs94.cs-32x32x5
2817    checkpoint52f_pre
2818    
2819    checkpoint52e_post
2820    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2821      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2822    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2823      to work with implicit vertical advection and AB ;
2824    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2825    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2826     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2827    checkpoint52e_pre
2828    
2829    o fix bug in impldiff when Nr=1 or Nr=2.
2830    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2831    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2832    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2833      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2834    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2835    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2836    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2837    
2838    checkpoint52d_post
2839    o re-tiled many expts to allow comparison in multi-processor mode
2840      - updated output accordingly
2841      - changed hs94.128x64x5 to use intial T from file rather than use the
2842        random number generator
2843    o add infrastructure in model routines for fizhi and gridalt packages
2844    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2845    o changes to permit hi-res, cubed-sphere, configuration
2846      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2847      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2848      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2849        of surface winds for the cube
2850      (A verification experiment, based on global_ocean.cs32x15, but with
2851       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2852       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2853       complete with example surface forcing files and matlab scripts to look
2854       at the output and compare it with that of global_ocean.cs32x15.)
2855    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2856       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2857       to conform to the common rule.
2858    o check-in the first version of the coupler + interfaces for multi-components
2859       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2860       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2861       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2862       - ocean and atmos. share the same horizontal grid (no interpolation).
2863       - exchanges between component and coupler is done in forward_step
2864    o new verification experiment, cpl_aim+ocn:
2865       coupled ocean - AIM atmosphere on cs32 grid.
2866    
2867    checkpoint52d_pre
2868    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2869    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2870    
2871    checkpoint52c_post
2872    o Fixing OPTIONS files for use of exf:
2873      - ALLOW_ECCO not needed
2874      - ECCO_CPPOPTIONS.h should not be included from
2875        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2876        as has been the case in the past
2877      - All cal/exf related options are currently set in
2878        single header file. Should remain so until we
2879        agree on a consistent new policy.
2880    o Removed all CPP options for cal package.
2881      cal has no more CPP options.
2882    o modified STOREs in GAD_ADVECTION
2883    o corrected key comp. for passkey
2884    
2885    checkpoint52b_post
2886    o new version: "thsice" of thermodynamic sea-ice pkg:
2887     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2888     - modify fluxes but do not change theta directly;
2889     - light cleaning of bulk_force pkg (still needed with thsice).
2890     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2891       + output_thsice.txt to test thsice & bulk_force pkgs.
2892    o put back grid & coriolis monitor output.
2893    checkpoint52b_pre
2894    
2895    o call "do_the_model_io" at the beginning (=> dump initial state)
2896    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2897    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2898      (need info on NUMBER_OF_PTRACERS)
2899    o missing PTRACERS headers in some routines
2900    o default tamc.h in pkg/autodiff supposed to crash
2901      to ensure proper customization
2902    
2903    checkpoint52a_post
2904    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2905      - moved surfaceTendencyTice from pkg/seaice to main code
2906      - subroutine FREEZE_SURFACE now limits only surface temperature
2907        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2908        => new output.txt for global_ocean.cs32x15 & global_with_exf
2909      - keep the old version of FREEZE for backward compatibility;
2910        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2911      - corresponding modifs for TAF directives
2912    o added surface flux output variables to TIMEAVE_STATVARS
2913    o time-averaged output for pkg/ptracers
2914    o fix problem with ECCO-related divided adjoint
2915      snapshot file was missing some ad-variables,
2916      but no warning issued by TAF
2917    
2918    checkpoint52a_pre
2919    o some bug fixes for #undef REAL4_IS_SLOW
2920    
2921    checkpoint52 = ecco_c52_e35
2922    o after testing adjoints of checkpoint51u_post
2923    
2924    checkpoint51u_post
2925    o this is the post-merge tag of the ecco-branch
2926      (needs another clean checkout and re-testing)
2927    o various natl_box_adjoint configs and results
2928      but no input fields
2929    o obcs adjoint not yet merged!
2930    o adding ECCO global 1x1 and 2x2 degree configs
2931    o updated/extended some store directives for seaice
2932    o pkg/ecco now containes ecco-specific part of cost function
2933    o top level routines the_main_loop, forward_step
2934      supersede those in model/src/
2935      previous input data.cost now in data.ecco
2936      (new namelist ecco_cost_nml)
2937    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2938    
2939    checkpoint51t_post
2940    o this is the pre-merge tag of the ecco-branch
2941    
2942    checkpoint51s_post
2943    o cleanup: removed various obsolete #define-s
2944    o pkg/grdchk
2945      - renamed 'ph-grd 3' to 'grad-res'
2946      - merged from ecco-branch
2947        (remaining bug fixes for obcs gradient checks)
2948      - additional high-precision output for testreport
2949        (grep for 'precision_grdchk_result')
2950    
2951    checkpoint51r_post
2952    o cleaned up or removed CPP_OPTIONS.h files
2953    o updated results for some of the tests to reflect the new
2954      optfiles (-ieee: -O0 instead of -O3)
2955    
2956    checkpoint51q_post
2957    o cd_code:
2958      - moved cd_scheme.F -> cd_code_scheme.F
2959      - separate read_checkpoint from cd_code_ini_vars.F
2960      - separated cd_code part from write_checkpoint
2961      - updated AD_SOURCE, generated .flow
2962      - added CD_CODE_VARS.h to the_main_loop
2963      - Moving cd_code specific store dir.s to pkg/cd_code
2964    o ctrl package totally restructured
2965      - pack/unpack now optional and decoupled from
2966        xx_/adxx_ I/O
2967      - ctrl_pack/unpack cleaned
2968        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2969      - confined inclusion of AD_CONFIG.h to where necessary.
2970    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2971    
2972    checkpoint51p_post
2973    o create initial cd_code package
2974      - WARNING: the initialization of fields within packages
2975        is broken because INI_FIELDS (where READ_CHECKPOINT is
2976        called) is called *before* PACKAGES_INIT_VARIABLES.
2977        This seems to be backwards since
2978        1) its important to initially zero the entire field including
2979           the "halo" region
2980        2) zeroing needs to be done *before* reading pickup info
2981           and the pickup call might or might not happen in any
2982           particular run
2983      - this needs an overhaul for R2
2984    o cleanup verification/*/code/GMREDI_OPTIONS.h
2985    o cleanup testreport
2986    
2987    checkpoint51o_post
2988    o bringing AD-related verif's up to date with genmake2
2989      - carbon/
2990      - global_ocean.90x40x15/
2991      - hs.94.1x64x5/
2992      - (front_relax/ )
2993    o (more) consistent directory structure for AD-related verif.'s
2994    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2995    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2996    o bug fix in find_alpha.F for MDJWF:
2997      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2998        change rho -> rho-rhoConst
2999      - replace call find_rho to find_rhonum
3000    o initialisation of rFlx extended to full array (required by TAF)
3001      and shifted to thermodynamics
3002    o removed PTRACERS.h in ptracers routine
3003    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3004    o Correcting initialisations for fVerU, fVerV.
3005    o helping TAF to recognize dependency on kUp for
3006      fVerU, fVerV
3007    o Replacing delZ by delR in pkg/ctrl/
3008    checkpoint51o_pre
3009    
3010    o undid all of cp51 pending some cleanups and discussion
3011    o added the [#include "AD_CONFIG.h"] statement to all files that need
3012       it for adjoint/tl #defines
3013     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3014     o removed tools/genmake since it no longer works
3015    
3016    checkpoint51n_post
3017    o modifications to make FREEZE flux visible to pkg/kpp
3018      - moved surfaceTendencyTice from pkg/seaice to main code
3019      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3020      - subroutine FREEZE now limits only surface temperature
3021        (this means new output.txt for global_ocean.90x40x15,
3022         global_ocean.cs32x15, and global_with_exf)
3023    o added surface flux output variables to TIMEAVE_STATVARS
3024    
3025    checkpoint51n_pre
3026    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3027    o added [#include "AD_CONFIG.h"] to all files that use the following
3028      defines:
3029      - ALLOW_ADJOINT_RUN
3030      - ALLOW_TANGENTLINEAR_RUN
3031      - ALLOW_ECCO_OPTIMIZATION
3032    
3033    checkpoint51m_post
3034    o incorporating changes to get TAMC/TAF working in genmake2
3035      - added new TAMC/TAF targets to the Makefile
3036      - various cleanups related to package handling
3037      - these changes should have no impact on the forward model
3038    
3039    checkpoint51l_post
3040    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3041     - faster algorithm for cal_addtime.F
3042     - higher precision arithmetic, where needed
3043     - pkg/exf *startdate variables changed from calendar date to
3044       model integration time
3045    
3046    checkpoint51l_pre
3047    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3048    o enable to apply restoring on S & T only in a latitude band.
3049    o update output (external_forcing_surf modif. change truncation errors)
3050       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3051    
3052    checkpoint51k_post
3053    o change default to: useNHMTerms=.FALSE.
3054     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3055       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3056     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3057        exp1, ideal_2D_oce
3058     - change data file of oceanic exp (leave the results unchanged for now)
3059       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3060    o set gravitySign automatically according to the vertical coordinate used
3061      (and change sign: back to "logical" value: +1 when R increases downward)
3062    o added an include barrier to the default CPP_OPTIONS.h and
3063      removed the #include "PACKAGES_CONFIG.h" from it
3064    o fix a bug in mom_fluxform (from chk51j_post)
3065    
3066    checkpoint51j_post
3067    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3068    o adjusted some flow directives (dynamics, thermodynamics)
3069    o added cubed-sphere case to test cost function
3070    o heckpoint_lev?_directives.h now include
3071      pkg-specific directives, whenever those are enabled.
3072    o Moving pkg-specific flow directives to corresponding pkg
3073      Moving pkg-specific differentiation list to corresponding pkg
3074      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3075      ---> conventions are
3076           - pkg_ad.flow
3077           - pkg_ad_diff.list
3078           - pkg_ad_check_lev?_dir.h
3079    
3080    checkpoint51i_post
3081    o merge of the branch-genmake2
3082      - knowingly breaks the older genmake
3083      - automatic generation of all ALLOW_${PKG_NAME} defines
3084      - new testreport supersedes older testscript
3085    o large number of package inclusion and header cleanups
3086    checkpoint51i_pre
3087    
3088    o new output for adjoin of global ocean vector invariant
3089    o fix for checkpoint of thermodynamic seaice and bulk_force
3090    o Steph gchem various cleanups
3091    
3092    checkpoint 51h_pre
3093    o fixed some single quotes
3094    o modify gchem pkg to be more versatile
3095    o modifications to clean up dic pkg
3096    o add pkg/cfc
3097    
3098    checkpoint51g_post
3099    o provide links for ARPACK and ADM*TLM
3100    o start removing verification/vero/
3101    o update AD-related stuff
3102      (in particular some IF-statements in model/src/ routines)
3103    o adding to verification/global_ocean.90x40x15/ adjoint of
3104      vector invariant setup
3105    
3106    checkpoint51f_post
3107    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3108    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3109      of tracer Green's fucntions for ocean inversion project.
3110    
3111    checkpoint51f_pre
3112    o Added on-the-fly spatial interpolation capability
3113        "USE_EXF_INTERPOLATION" to pkg/exf.
3114      - This is a temporary Cartesian-grid hack until
3115        the super-duper ESMF coupler becomes available.
3116      - See verification/global_with_exf/README for usage example.
3117      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3118        flags and modified pkg/seaice accordingly.
3119    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3120        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3121        non-local transport term.
3122    
3123    checkpoint51e_post
3124    o pkg/mom_vecinv:
3125      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3126      - add time-ave diagnostic of vorticity advection.
3127    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3128    o atmospheric geopotential: - include water vapor effect;
3129                                - use p^kappa in p* scaling.
3130    o land pkg: read initial state from files.
3131    o AIM : add stratospheric drag in the upper level
3132    
3133    checkpoint51d_post
3134    o change function ILNBLNK (=> last non-blank char.) to return zero
3135      (instead of the string length) when the string. char is empty
3136    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3137    o modif's to restore TAMC compatibility
3138      - avoid "_d" constructs in PARAMETER declarations
3139      - avoid interrupting lines by comment lines
3140    o Use cluster local disks for purely local I/O
3141      vs. globally visible disks needed for ctrl stuff
3142      (merged from ecco-branch)
3143      - new active_file_loc... and mdsio_..._loc routines
3144      - affected packages: autodiff, ctrl, grdchk, mdsio
3145    
3146    checkpoint51c_post
3147    o introducing integer flag debugLevel
3148      - debLevZero: suppress all output
3149      - debLevA: standard
3150      - debLevB: equivalent to current debugMode=.TRUE.
3151    o introducing pathname variable mdsioLocalDir for mdsio
3152      that can be specified at runtime
3153      (relevant for cluster I/O to local disk)
3154    `
3155    >>>checkpoint51b_post
3156    adjoint of ptracers
3157    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3158    o extended state in checkpoint_lev?, etc.
3159    o alternative ctrl/cost with tr1 or ptracer
3160    o new comlev1_bibj_ptracers
3161    o new ptracers.flow
3162    o made ptracers_forcing same as external_forcing_s
3163    o added verification for adjoint with ptracers
3164      - adm. grdchk fail so far
3165      - tlm. grdchk OK
3166      - checked tapelev/comlev recomputations: OK
3167    <<<checkpoint51b_pre
3168    
3169    checkpoint51a_post
3170    o added code for biogeochemistry package
3171      - new pkgs: dic, gchem
3172      - new subroutine in ptracers
3173    o modify code for biogeo packages
3174      - in model/src and pkg/ptracers
3175    
3176    checkpoint51
3177    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3178      - autodiff, ctrl, exf, grdchk, seaice
3179      kept separate packages
3180      - cost, ecco, obcs
3181    o updating verification/internal_wave, verification/lab_sea
3182      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3183    
3184    checkpoint50i_post
3185    o Preparing next differentiable checkpoint and sync
3186      of MAIN vs. ecco-branch
3187      - 1st step: this one is differentiable
3188      - 2nd step: next(! not this) checkpoint will have updated packages
3189                  from ecco-branch)
3190    
3191    checkpoint50h_post
3192    o new package "land": provide surface BC for AIM.
3193    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3194    o AIM: use true log-P extrapolation for near surface temp (= as in
3195        F.Molteni paper) ; update aim.5l_cs output.
3196    o New variable in PARM03 for more flexible pickups
3197    o somewhat cleaned package initialisation sequence for
3198      ctrl/ cost/ ecco/ in packages_... routines
3199    
3200    checkpoint50g_post
3201    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3202      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3203      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3204        made the default because of faster convergence than ADI
3205    
3206    checkpoint50f_post
3207    o exf totally restructured
3208      - replaced all exf_set_ routines by one generic exf_set_gen.F
3209        and made sure it's still differentiable
3210      - split exf_getffields.F into new exf_bulkformulae.F
3211      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3212      - updated adjoint/makefile and relevant verif. accordingly
3213    
3214    checkpoint50f_pre
3215     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3216          + change Evap over land. (update aim.5l_cs output)
3217     o added missing .cvsignores and made uniform across expts
3218     o changed configuration of tidal_basin_2d expt
3219     o added pkg/debug functions for tracing code in fatal crashes
3220     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3221     o new fn in pkg/monitor to stop model if solution grows too big
3222     o removed lots of single quotes from comments
3223    
3224    checkpoint50e_post
3225    o make KPP work with PTRACERS
3226     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3227       nearly a copy of kpp_transport_s
3228     - there is no analogue to SurfaceTendencyS, so I have to use
3229       gPtr(of the surface layer) instead
3230    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3231    checkpoint50e_pre
3232    
3233    checkpoint50d_post
3234    o change kpp output from multiple-record state files to single-record state
3235      files analogous to write_state.F
3236    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3237      analogous to the cg2d-related output.
3238    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3239      so that writing to internal file fn (with length 512) fails.
3240    checkpoint50d_pre
3241    
3242    checkpoint50c_post
3243    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3244    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3245    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3246    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3247    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3248    
3249    checkpoint50c_pre
3250    Merging from release1_p13:
3251    o bug fix for pkg/seaice dynamic solver
3252    o Added SEAICE_initialHEFF to pkg/seaice
3253    
3254    checkpoint50b_post
3255    o store u*,v* in gU,V instead of in guNm1,gvNm1
3256    o in order to put the momForcing out of the Adams-Bashforth:
3257      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3258      to timestep.F
3259    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3260    o re-generate output for highly sensitive test-exp:
3261       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3262    
3263    checkpoint50b_pre
3264    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3265    o corrected CPP option mismatch in exf_Bulk... functions for case
3266      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3267    
3268    checkpoint50a_post
3269    o Bug fix for merging between c50 and KPP.
3270      ikey was passed from thermodynamics to kpp_calc via
3271      common block rather than being recomputed in kpp_calc,
3272      in contradiction with new key itdkey.
3273      New key ikppkey created, and tamc.h headers updated.
3274    
3275    checkpoint50
3276    - 2nd step of merge with ecco-branch:
3277      merge changes in ecco-branch back into main trunk
3278    - bug fix in find_alpha
3279    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3280    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3281    - merged some sliced AD support routines
3282    
3283    checkpoint49
3284    merged from ecco-branch:
3285    o exf:
3286      - Enable initialisation of forcing fields to constant
3287        (runtime) values.
3288      - in exf_getffields.F
3289        Reduce i-/j-loop to interior domain, discarding overlaps.
3290        That also fixes wrong TAF-key computations for key_1, key_2
3291        with bulf formulae.
3292      - exf_init.F modify #ifdef for exf_init_evap
3293      - exf_getffieldrec.F, ctrl_getrec.F
3294        The following INT-usages are not safe:
3295          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3296          fldcount = int(fldsecs/fldperiod) + 1
3297        and were modified.
3298    o autodiff: checkpoint_lev...
3299      - updated storing for bulk formulae (some arrays were missing)
3300      - added state for seaice package
3301      - synchronized with main branch
3302    o DIVA:
3303      Modif.s in
3304      - the_main_loop.F
3305      - the_model_main.F
3306      and added cost_final_restore.F cost_final_store.F
3307      o With these changes, it is possible to fully separate
3308        the first forward run to compute the cost function (mdthe_main_loop)
3309        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3310        into separate model executions.
3311        This enables better tuning of DIVA to given queue sizes.
3312      o Loss of cost function value in consecutive DIVA runs is
3313        fixed by storing to 'costfinal' file.
3314      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3315        beginning/end of adjoint integration is accounted for.
3316      The current changes apply to TAF-1.4.26.
3317      TAF has one remaining bug, requiring one manual change
3318      (see MITgcm manual).
3319    o cal: synchronized between MAIN and ecco-branch
3320    
3321    checkpoint48i_post
3322    o Changes to restore differentiability of code w.r.t. previous tag
3323      (mostly adding new routines to make list and replacing
3324      pressure by totPhiHyd).
3325    o Updated and merged grdchk package
3326      - has both ADM and TLM checks
3327      - works for single- and multi-proc.
3328      - output cleaned
3329      - worked successfully for parallel DIVA
3330    o genmake:
3331      - Adding -platform=SP4
3332      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3333    o Modif. for DIVA:
3334      ctrl_unpack should not be called in intermediate DIVA interval.
3335      (similar thing would apply for active files such as
3336      tbar, sbar, psbar, which should not be reinitialised;
3337      only relevant for ecco-branch)
3338    
3339    checkpoint48h_post
3340    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3341    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3342    o Added SEAICE_initialHEFF to pkg/seaice
3343    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3344    
3345    checkpoint48g_post
3346    --- EOS:
3347    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3348      store total Potential in totPhyHyd for diagnostics & EOS.
3349    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3350    --- Pressure/geopotential gradient:
3351    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3352    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3353      ( changes results of global_ocean_pressure )
3354    o NLFS + z-coord.: add eta*Rho' contribution.
3355    o accurate phiHyd when using interface-W at the middle between 2 centers
3356     ( changes results of ideal_2D_oce )
3357    o includes r* 2nd term in potential gradient.
3358    
3359    checkpoint48f_post
3360    Merging from release1_p12:
3361    o Modifications for using pkg/exf with pkg/seaice
3362      - improved description of the various forcing configurations
3363      - added basic radiation bulk formulae to pkg/exf
3364      - units/sign fix for evap computation in exf_getffields.F
3365      - updated verification/global_with_exf/results/output.txt
3366    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3367      (SBO) core products, including oceanic mass, center-of-mass,
3368      angular, and bottom pressure (see pkg/sbo/README.sbo).
3369    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3370      to avoid negative values in shallow regions.
3371      - updated verification/natl_box/results/output.txt
3372      - updated verification/lab_sea/results/output.txt
3373    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3374    o Added useSingleCpuIO option (see PARAMS.h).
3375    o Updated useSingleCpuIO option in mdsio_writefield.F to
3376      work with multi-field files, e.g., for single-file pickup.
3377    o pkg/seaice:
3378      - bug fix in growth.F: QNET for no shortwave case
3379      - added HeffFile for specifying initial sea-ice thickness
3380      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3381    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3382      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3383    o pkg/seaice:
3384      - adjoint-friendly modifications
3385      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3386    
3387    checkpoint48e_post
3388    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3389    o dynamics: change definition of computational domain & adapt mom_fluxform
3390      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3391    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3392        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3393        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3394        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3395        inverted_barometer solid-body.cs-32x32x1
3396      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3397    
3398    checkpoint48d_post
3399    o in preparation for r*:
3400     a) use pre-computed gradient of hydrostatic potential:
3401        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3402     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3403        => affects results of glob_oce_pressure (different truncation error)  
3404      update output.txt of ideal_2D_oce & global_ocean_pressure
3405    
3406    checkpoint48d_pre
3407    o in preparation for r*:
3408      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3409      pass the 2 comp. of the grad. as arguments to momentum S/R.
3410      but for the moment, only used if it does not change the results.
3411    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3412    
3413    checkpoint48c_post
3414    Modifications in treatment of initial flux forcing controls
3415    to avoid extra storing of flux fields.
3416    
3417    checkpoint48c_pre
3418    o Added tidal_basin_2d experiment (currently 1D!)
3419    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3420    
3421    checkpoint48b_post
3422    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3423     (modification to pressure gradient not yet implemented)
3424    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3425      (for U & V) that are used for vertical advection of momentum.
3426    
3427  checkpoint48a_post  checkpoint48a_post
3428  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
3429     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.

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