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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1091 by jmc, Sun Apr 26 02:56:36 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi
8    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
9    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
10      edges are closed (zero depth); might happen with "blank tiles";
11      for now, disable if using OBCS.
12    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
13      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
14    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
15      to reduce length of 1.D array print in STDOUT.
16    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
17      + use 48 tiles (16x8): this will allow to test "blank tiles".
18    o start to test MPI + multi-threaded (change testreport to skip tests
19      where number of tiles do not match).
20    o genmake2: add option "-omp" to turn on Open-MP ;
21      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
22    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
23      and keep the original tile numbering. Note: compatible with old
24      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
25    
26    checkpoint61l
27    o Overlaps had been forgotten in calculating ijk keys : fixed
28    o fix cyrus makedepend for gcc 4.4
29    o experiment fizhi-cs-aqualev20:
30      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
31      and generate new output. Note: new output is much closer to the old
32      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
33      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
34    o pkg/fizhi:
35     - change to avoid indices going deliberately over array-bounds
36     - remove unnecessary MPI stuff
37     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
38     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
39       does not go over array-bounds and therefore returns reliable output.
40     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
41       this S/R has 4 output arguments, which are used inside "get_alarm";
42       when it is called with the same variable "ndum" in place of several
43       output arguments, this produces weird side effect inside "get_alarm"
44      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
45       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
46       address) and produces error.
47    o tools/gemake2: (March 27-29 2009)
48      with option "-mpi": link *_mpi files from "MODS" dir (this is what
49      testreport does).
50    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
51    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
52       update lab_sea.lsr & lab_sea.salt_plume results
53    o pkg/seaice:
54      Major overhaul of the LSOR solver: change discretization from original
55      finite differences to finite volume. The old routine is still in the
56      file seaice_lsr.F and can be turned on with the CPP-flag
57      SEAICE_OLD_AND_BAD_DISCRETIZATION
58      Along with this change, the discretization of the strain rates is changed.
59      The same flag turns on the old discretization in seaice_calc_strainrates.F
60      All verification experiments with seaice are affected (except for
61      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
62      results by setting the above flag.
63      Further changes involve changes in defaults:
64      - ALLOW_FLOODING is defined and turned on by default
65      - SEAICEadvSnow = .true. is now the default
66      - SEAICEadvSalt = .true. is now the default
67      - SEAICEadvAge  = .true. is now the default
68      - SEAICE_clipVelocities  = .false. is now the default
69                                         (as per J. Zhang's recommendation)
70      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
71        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
72      - seaice_growth: replace computation of UG by a simple copy from wspeed
73    
74    checkpoint61k
75    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
76      seaice_lsr: fixed a few metric terms,
77                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
78                  add more debugging diagnostics
79      seaice_evp: removed superfluous many metric terms of FV discretization
80                  of stress divergence
81                  affects lab_sea, lab_sea.hb87
82      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
83                  of stress divergence for non-evp solver
84                  (this part is not tested anywhere)
85      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
86                  they were effectively only half slip
87                  affects lab_sea.hb87
88      updated all relevant verification experiments (except lab_sea//output_adm.txt
89        which was left over, but fails at level 7 & 6)
90    
91    checkpoint61j
92    o pkg/seaice: turn a few hard wired parameters into run time parameters
93    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
94      time in seconds as promised by the usints in seaice_monitor and exf_monitor
95    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
96      that are not cubed-sphere grids
97    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
98    o pkg/ctrl:
99      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
100    o non-hydrostatic (calc_gw.F):
101      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
102      update output of exp. global_ocean.cs32x15.viscA4
103    o remove backward compatibility for thetaMin,phiMin
104      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
105    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
106      interpolated wind field not only for curvilineargrid=.true., but also
107      for a rotated grid (rotateGrid=.true.)
108    o pkg/exf: add capability to bypass interpolation for runoff
109      by setting yet another CPP-flag
110    o eesupp/src, B-grid exchange:
111      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
112    o autodiff
113      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
114      allows to switch to single-prec common blocks;
115      corresponding switch occurs in tamc.h, integer isbyte
116      TAF store directivs "byte" and "kind" seem equivalent;
117      Most tamc.h have been updated correspondingly.
118    
119    checkpoint61i
120    o autodiff:
121      fix autodiff_sore/_restore indices for obcs
122      (spotted by I. Hoteit, M. Mazloff)
123    o pkg/autodiff, pkg/ctrl:
124      Add flag to reduce all tapelev I/O to single-prec.
125      In data.ctrl set
126        doSinglePrecTapelev = .TRUE.
127    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
128      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
129    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
130      real fresh water flux (not yet)
131    o pkg/mdsio & rw:
132     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
133     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
134    o pkg/flt:
135     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
136       init_fixed & ini_varia.
137     - clean-up & simplify linear interpolation S/R:
138       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
139     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
140     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
141     - add vert. coordinate & horiz. indices to output files.
142     - change vertical position in initial condition, from index to depth [m].
143     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
144       (easier to get to a curvilinear grid) ; delX,delY no longer used.
145    o pkg/ggl90: a few modifications:
146     - fix bottom boundary condition, and interpolation of KappaE
147       near top and bottom
148     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
149     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
150     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
151    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
152      (maintain temporary backward compatibility, until next checkpoint)
153    
154    checkpoint61h
155    o pkg/diagnostics with "periodic averaging diagnostics":
156      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
157    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
158    o pkg/obcs: fix loop ranges for balancing code
159    o pkg/flt:
160     - improve criteria for finding which tile owns a float.
161     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
162    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
163      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
164      with ocean biogeo)
165    o pkg/flt:
166     - do some cleaning and fix the restart ;
167     - add output.txt in flt_example/results to get this pkg tested.
168    o genmake2: add an EXTENDED_SRC option and flag.
169       for now, cannot be turned on on command line (only through genmake_local)
170    o pkg/mdsio: read/write vector:
171     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
172     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
173       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
174     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
175      (drop to 4 digits matching for grad). But this test does not look very
176      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
177    
178    checkpoint61g
179    o pkg/flt:
180      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
181       + make OPTIONS file more standard.
182      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
183      - fix _BYTESWAPIO CPP-Flag
184      - standard reading of file-parameter "data.flt"
185      - fix argument list of S/R FLT_RESTART
186      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
187    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
188    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
189      a still unfixed compiler/optimization bug
190    
191    checkpoint61f
192    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
193      update results of global_ocean.cs32x15.icedyn test.
194    o move getcon.F from model/src to pkg/fizhi.
195    o pkg/exf: add parameter for extrapolation of temp up to the surface
196       and option to prevent negative evap (in bulk_largeyeager04 only).
197    o Prather Advection scheme: fix tracer conservation for divergent flow
198      (e.g., when using NonLin Free-Surface).
199    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
200    o gmredi (Visbeck-variable-K):
201     - add more parameters to Visbeck-variable-K.
202     - use a 5 points average for dSigmaR in Visbeck-K calculation
203       (more "homogenous": same stencil and same weights as in dSigmaH)
204     - update output of ideal_2D_oce experiment.
205    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
206      (#undef REAL4_IS_SLOW)
207     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
208       coordinate variable
209     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
210       (surface forcing fields), removes some of the functionality
211     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
212     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
213       probably not all: copy _RS surface flux fields to RL field before
214       calling DIAGNOSTICS_FILL
215     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
216       real*4 (CALL EXCH_*_RS) versions.
217     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
218       (generate new output).
219    
220    checkpoint61e
221    o gmredi (Visbeck-variable-K):
222      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
223      - change computation of Visbeck-K where Slope > Smax :        
224        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
225        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
226    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
227      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
228    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
229    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
230      does not become too large (to avoid precision problems in implicit-diffusion
231      solver); update ideal_2D_oce output.
232    o pkg ggl90:
233      - in ggl90_cal.F: compute only one set of visc/diff, used to
234        step forward TKE/T/S/momentum
235      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
236        have Prandlt =1)
237    o gmredi (fm07):
238      - add lower limit on Transition layer thickness + lower limit on 1/lambda
239      - allow to set few more params from data.gmredi
240    o pkg ggl90:
241          - add missing sqrt(2) factor in computation of mixing length
242            scale in ggl90_calc.F
243            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
244    
245    checkpoint61d
246    o adjoint modifs
247      - adapt to new field rhoInSitu
248      - allow to revert from StoreDynVars2D, StoreDynVars3D
249        to individual fields
250        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
251    o store 3-D (in-situ) density in commom block (DYNVARS.h)
252     - save 1 rho computation.
253     - no longer modify T & S inland when using down_slope pkg.
254    o gad_som : allow to switch to SOM advection for T & S without corresponding
255      pickup files (using new S/R: MDS_CHECK4FILE).
256    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
257      (for useSingleCpuIO to work in multi-threaded)
258    o pkg/shelfice:
259     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
260       with SHELFICEtopoFile in data.shelfice
261     - move code for reading ice shelf topography and modifying hFacC into separate
262       subroutines of the shelfice package
263     - separate initialisation of "fixed" and "variable" variables
264     - kTopC is not (yet) replaced by kSurfC, although this is possible
265    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
266    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
267      and rename:
268      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
269      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
270    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
271    
272    checkpoint61c
273    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
274      to add mass source/sink of fluid in the interior (3-D generalisation
275      of oceanic real-fresh water flux).
276    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
277    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
278    o new pkg: down_slope
279      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
280      - presently, modify T & S inland (dwnslp_calc_rho.F).
281        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
282      - implementation for ocean in P-coords not tested.
283      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
284    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
285      (to facilitate conversion of oceanic pkg to p-coordinate).
286    o change FIND_RHO to FIND_RHO_2D :
287      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
288    o new pkg: cheapaml
289    
290    checkpoint61b
291    o exch2:
292      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
293      - no longer depend on the order sequence (N,S,E,W).
294      - 3rd exchange no longer needed (tested with 24 tiles).
295      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
296      - exch_UV_A-grid readily available (but not yet tested).
297      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
298      (both are no longer needed) in exch_uv: no effect in forward run; but
299       get truncation error differences with adjoint exch.
300    o exch2:
301     - change index-bounds storage (moved from target to local tile,
302       more intuitive this way) ; rename/remove some variables.
303     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
304    
305    checkpoint61a
306    o exch2/matlab-topology-generator:
307      fix bug in index bounds for N-S internal exchange (hard to tell if this
308      had any effect on the solution).
309    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
310      is exceeded
311    o testreport: modify syntax of awk, so that it works also with
312      awk, and not only with nawk and gawk
313    
314    checkpoint61
315    o autodiff
316      Change default for TAF usage by removing argument '-nonew_arg'
317      This changes TAF subroutine argument list (ordering of active var.)
318      Omission of this flag leads to incompatibility w.r.t. TAMC
319      To restore TAMC-compatibility, need following modifs:
320      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
321      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
322      Tested TAF version is 1.9.22
323      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
324    
325    checkpoint60
326    --->>> This is the last checkpoint for which generating the adjoint
327    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
328    --->>> by default.
329    --->>> Future checkpoints will ommit this flag by default.
330    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
331    o pkg/grdchk: Add gradient check to etan0 perturbations.
332    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
333    o pkg/autodiff: more flexibility in zeroadj.
334      model/src: modifying do_oceanic_phys.F accordingly.
335    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
336    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
337      special setup of gmredi for which the adjoint is stable
338      enough for parameter optimization.
339    o bridging the gap between eddy stress and GM.
340      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
341          along with a change in CPP option (now ALLOW_EDDYPSI).
342      -> when using GM w/ GM_AdvForm:
343          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
344          is applied either in the tracer Eq. or in momentum Eq.
345          depending on data.gmredi (intro. GM_InMomAsStress).
346      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
347      The key modifications are in model/src/taueddy_external_forcing.F
348      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
349    
350    checkpoint59r
351    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
352      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
353      fix option to read coriolis(@ cell-corner) from files with CS-grid.
354    o pkg/mnc: add some attributes to standard 1D-coordinate variables
355    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
356      mass points, when using mnc for output
357      - add runtime parameter (missing_value, missing_value_int) to override
358        default (which is the value of getcon('UNDEF'))
359    o pkg/mnc: prepare mnc for the actual use of missing values with the
360      diagnostics package: small fix in mnc_cw_readwrite.template and more
361      initialisation of never used fields
362      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
363      versions
364    o pkg/thsice/thsice_ini_vars.F added default initial values so that
365      thermodynamics sea ice solver does not blow up when some initial fields
366      are missing.
367    o move from external_forcing_surf.F to ini_forcing.F
368      the p-coord. hack consisting in using pLoad to set phi0surf ;
369      update output of tutorial_global_oce_in_p (affected @ truncation level).
370    o Freshen up a bit hs94.1x64x5, notably:
371      remove rotationPeriod and tRef=5*0. (adjoint only), and add
372      exactConserv=.TRUE.
373    o pkg/generic_advdiff:
374      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
375      applies to files where Temperature & Salinity 2nd Order moments are used.
376    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
377      this uses a dynamically allocated internal state data structure
378      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
379      and requires a fortran 90 compiler
380    
381    checkpoint59q
382    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
383       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
384    o Refresh tutorial_global_oce_biogeo, notably:
385      - change bathymetry (put back seamounts in ACC, use hFacs)
386      - change EOS (POLY3 --> JMD95Z)
387      - use Bryan-Lewis vertical diffusivity
388      - use multidimensional advection
389      - remove old virtual virtual in dic pkg, now done through ptracer pkg
390      - change a couple of parameters in dic pkg
391    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
392    o pkg/obcs: change default to OBCSfixTopo = .true.,
393      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
394      - replace "debugMode" with "debugLevel .GE. debLevB"
395    o implementation of TAF directives for gchem,cfc,dic
396    o remove "exp5" (replaced by tutorial_deep_convection).
397    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
398      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
399      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
400      --> changes results in exp4, seaice_obcs
401    o tutorial_deep_convection :
402      update the set-up and increase resolution and domain size ; start
403      from pseudo initial conditions = output at t=120mn in order to see
404      something happening when running testreport.
405    o pkg/seaice: add os7mp as an advection scheme
406                  add check for advection schemes
407                  add a flag for restoring T and S underneath sea ice
408    o pkg/my82: add netcdf-support and diagnostics
409    o thsice pkg:
410      - Now hsMax limits snow height by turning it into ice following
411        flooding scheme (and now conserving energy)
412      - Slight rewriting of the formula in thsice_calc_thick.F
413      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
414      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
415    
416    checkpoint59p
417    o gchem / dic / cfc :
418      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
419      - add new parameter files: "data.dic" & "data.cfc" ;
420      - various re-arrangement in initialisation & header file ;
421      - fix tutorial_global_oce_biogeo for multi-threaded test.
422    o pkg/dic: test for "pickup_dic" file when restarting ;
423      if no pickup-file, can restart with a re-initialised pH (same as it did
424      before) providing pickupStrictlyMatch is set to False.
425    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
426      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
427    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
428      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
429    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
430     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
431       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
432    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
433       scheme to use for vorticty-term ;
434     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
435       (with default selectVortScheme, return to original discretisation)
436     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
437    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
438    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
439      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
440      also fix diagnostics VISCAHW & VISCA4W.
441    
442    checkpoint59o
443    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
444    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
445      move a few statemens out the main loop into separate loops
446    o pkg/shelfice:
447      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
448        (kg/m^2/s), does not break tests, because in verification/isomip,
449        rhoConstFresh=rhoConst (by accident)
450      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
451      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
452        new file model/src/seawater.F, so that they are available for all pkgs.
453      - convert potential temperature into in-situ temperature. This changes the
454        isomip tests => update tests
455    o add a flag writePickupAtEnd (default=true) to be able to suppress
456      writing a pickup at the last timestep
457    o tools/mpack-1.6 :
458      - disable automake (not working) and autoconf (not needed).
459      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
460        also cleaner with much less compilation warnings.
461    o pkg/profiles:
462      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
463      (for "less than 32 characters name" compiler requirement)
464    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
465      conditions that have a different sampling frequency than S/T/U/V obcs
466    o pkg/diagnostics (stats-diags):
467      - fix global Min/Max in case 1 processor get only empty tiles
468    o genmake2: replace (4 times)
469         make genmake_tc_1.o >> genmake_warnings 2>&1
470      with
471         COMM="$CC $CFLAGS -c genmake_tc_1.c"
472         echo $COMM >> genmake_warnings
473         $COMM >> genmake_warnings 2>&1
474      to make genmake2 always see the value of CC as specified in the optfile.
475    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
476      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
477      - modify verification advect_cs test to test SOM-advection on CS-grid.
478    o pkg/ctrl:
479      - Rewrite of ctrl_map_ini_ecco.F,
480        introducing a generic routine (ctrl_map_ini_gen.F).
481      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
482    
483    checkpoint59n
484    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
485      number in dedicate array "hdiag":
486      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
487        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
488      - many small changes (integer format) for large number of diagnostics
489      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
490        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
491    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
492      usingSphericalGrid, this allows to define the rotated grid coordinates
493      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
494      geographical coordinates according to the inverse of the rotation defined
495      by the Euler angles, so that Coriolis parameter and online-interpolation by
496      exf works with the geographical coordinates on XC/YC/XG/YG.
497      Naturally, this feature does not work with all packages, so some
498      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
499      profiles), because there the coordinates are assumed to be regular
500      spherical grid coordinates.
501    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
502      - introduce isopycnal diffusion coefficient control.
503    o tools/adjoint_options:
504      - additional control vector components.
505    o pkg/mnc: have mnc create marginally meaning full coordinate variables
506      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
507    o pkg/mypackage:
508      - add example of read/write pickup for state-var ;
509      - add entry points to the main code for state-vars diags & write-pickup.
510    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
511      transitions for useExfYearlyFields
512      - add new subroutine that determines the file to read from for
513        use*YearlyFields = .TRUE. and .FALSE.
514      - add a verification experiment to global_with_exf that tests
515        useExfYearlyFields with USE_EXF_INTERPOLATION defined
516    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
517      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
518      subroutines (which could be generated from a template, because they are
519      almost identical), for now they are included in obcs_prescribe_read.F for
520      simplicity
521    o pkg/exf:
522      - add a little more diagnostic to exf_interp_read (in analogy to
523        mds_read_field, can be turned off with debugLevel < debugLevA=1)
524      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
525        ugly but fast by unrolling short inner loops, inserting a unroll=8
526        directive in routine lagran, and splitting a loop and making do while the
527        outermost loop (the latter requires the intoduction of index arrays)
528    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
529    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
530      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
531    o verification/seaice_obcs: updated for restart test and latest options
532    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
533      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
534      for now this is only available for the C-grid code and also within
535      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
536    
537    checkpoint59m
538    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
539      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
540    o gad_som : fix flux output (& diagnostics) to have same units as other  
541      advection scheme fluxes (was previously multiplied by deltaT).  
542    o added verification/seaice_obcs both to test seaice open boundaries
543      and to provide an example matlab scrpt for generating them
544    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
545    o pkg/salt_plume: clean up salt_plume_frac.F to
546      remove redundancy in PlumeMethod 1 and 4
547    o pkg/kpp: added saltplume diagnostics
548    o pkg/obcs and pkg/seaice:
549      - do not set uice and vice to zero when OB*icefile are unspecified
550      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
551      - moved seaice tracer obcs after call to seaice_growth
552    o pkg/salt_plume: added various options for salt plume depth
553      criterion and for vertical distribution of the salt
554    
555    checkpoint59l
556    o pkg/ptracers: new version of ptracers pickup:
557      read meta file and write only fields which are needed to restart.
558      ( same logic as main pickup file ; also using pickupStrictlyMatch )
559    o pkg/seaice:
560      - add timescale for melting due to warm mixed layer as a means of
561        setting SEAICE_availHeatFrac more conveniently
562      - add a CPP-flag/runtime parameter check for flooding algorithm
563      - reformulated availHeat in seaice_growth.F to be independent of AREA
564    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
565      unit changes
566    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
567    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
568      SX vector computer.
569    o pkg/seaice:
570      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
571        seaice forcing fields can now be read only through pkg/exf
572      - removed some unused halos
573    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
574    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
575      or U/VICE from U/VWIND before computing U/VSTRESS
576    
577    checkpoint59k
578    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
579      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
580    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
581      all experiments pass when compile with un-initialised var. checking option.
582    o added pkg/salt_plume
583    o script to test restart (for now, in MITgcm_contrib/jmc_script)
584    o pkg/seaice: new read/write pickup version.
585      read meta file and write only fields which are needed to restart.
586      ( same logic as main pickup file ; also using pickupStrictlyMatch )
587    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
588    o lab_sea.hb87: modify the domain & update output.hb87.txt :
589      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
590      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
591      process. Fixed here by closing the domain at the Northern boundary.
592    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
593    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
594      a set of consecutive levels in/from a 3-D array.
595    o pkg/ptracers:
596      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
597      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
598    
599    checkpoint59j
600    o in pkgs: dic, obcs, offline, rbcs:
601      standard way to compute coeff. for time interpolation between 2 time reccords
602      which retains full precision (& make results less dependent on compiler).
603      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
604    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
605      packages instead of reading ice cover and wind speed separately
606    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
607     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
608      to allow to compile customized code before the update)
609    o cleaning-up:
610      - fix CPP instruction syntax in pkg/obcs
611      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
612        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
613      - fix some threads issue in IO parts.
614    o pkg/dic:
615      - add tons of "_d 0" (--> much better testreports !)
616       and then update outputs of tutorial_global_oce_biogeo
617    o pkg/mom_fluxform:
618      add a special version of momentum advection intended to conserve momentum
619      next to a bathymetry step or a coastline edge. (default = off = #undef)
620    o new read/write pickup version:
621      - for now, only implemented for main (mdsio) pickup file.
622      - write out only what is needed to restart; merge pickup_nh , pickup_ph
623        and main pickup together.
624      - read meta file; read only what is needed to restart; stop if a field
625        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
626        if it make sense (even if the restart is not perfect).
627      - if no meta file, assume that pickup to read corresponds exactly to
628        a pickup that would currently be written.
629      - read pickup written in the old format (until checkpoint59i) if it
630        recognizes an old meta file (no field-list).
631      - add a meta file in exp. which starts from a pickup: 2 cases:
632        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
633         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
634        b) a meta file describing the content of the associated pickup file
635         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
636    o pkg/mdsio & pkg/rw:
637      - new routine to read a meta file ; new set of routine to read
638        Multiple-fields file (with meta file).
639    o added open boundary conditions capability for seaice
640        HSNOW, HSALT, UICE, and VICE
641    
642    checkpoint59i
643    o adjoint:
644      * fix multiDimAdvection adjoint
645        (partial recomputation problem by TAF for fVerT(:,:,kDown)
646        and comlev1 size definition (maxpass vs. max. number of tracers)
647      * verification/global_ocean.90x45x15 adjoint now tests
648        NLFS and multiDimAdvection using DST3 (=30)
649      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
650    o pkg/kpp: add "_d 0" to real constant (if missing);
651      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
652      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
653    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
654      for internal parameters related to restart process (formerly from PARAMS.h)
655      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
656    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
657      as argument. (only atm2d & obcs write_pickup have not yet been updated)
658    o pkg/monitor:
659      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
660      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
661      - account for deep Atmosphere factor and density factor (anelastic)
662    o added open boundary conditions capability for seaice HEFF and AREA
663    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
664      thermodynamics
665      - requires a little reorganization, which affects the testreport results
666        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
667        so that now the conservative form is tested
668      - add a few comments
669    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
670    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
671    o add new diagnostics to seaice: advective, diffusive fluxes (only for
672      multidim-advection, for scheme 2 they are not filled) and transports,
673      thermodynamic growth rates
674    o change units of EmPmR (inside the code, + within coupling interface)
675      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
676      Affects results @ truncation level (cg2d match) and update output of
677       experiments: lab_sea(6), global_ocean.90x40x15(10),
678      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
679      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
680      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
681      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
682    
683    checkpoint59h
684    o pkg/exf:
685      - improve vectorization by moving if-statement out of loops in
686        exf_mapfields, exf_radiation
687      - exf_bulkformulae.F: introduce 2D fields and vectorize code
688    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
689    o testreport:
690      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
691        monitor & update offline_exf_seaice exp. output.
692      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
693    o pkg/seaice:
694      - bug fix in the evp solver: boundary conditions were affected be
695        masking of zMax/zMin (changes results)
696      - minor bug fix in boundary conditions in seaice_calc_strainrates
697        (changes results for no_slip)
698      - seaice_lsr.F: make interpolation of eta dependent on boundaries
699      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
700      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
701        stress formulation and no-slip boundary conditions
702    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
703      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
704    o pkg/seaice: a first HSALT time stepping equation has been checked in
705    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
706      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
707      without requiring DO-IF statements
708    o pkg/thsice:
709      use continuous power-law function for partition of energy between lateral
710      melting/freezing and thinning/thickening ; old code using step function
711      still available with #undef THSICE_FRACEN_POWERLAW
712      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
713    o testreport: change AD testing : check against results/output_adm.txt
714      using same scripts as for forward test.
715    
716    checkpoint59g
717    o adjoint testing: in preparation for changing testreport:
718      - output format: cost and grad written on separated lines
719      - ad output results in directory "results" (instead of "results_ad")
720    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
721    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
722    o pkg/ecco: allow user defined cost function contributions
723    o testreport:
724      Allow to choose (per experiment) the list of tested output variables
725       and the main variable (used to issue a pass/FAIL ) ;
726      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
727      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
728      Also modify printing of summary:
729       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
730       b) echo the list of tested variables in the individual summary.txt of
731          each experiment.
732    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
733      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
734      (but still depend on the tile decompostion of the domain).
735    o pkg/seaice: change a discretization detail to make the B-grid code
736      "more symmetric". This change is likely to remove all "ridges/leads" that
737      where quasi-aligned with the grid in B-grid solutions. It may also be
738      the solution to the stress coupling issues with the B-grid.
739    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
740      remove .cvsignore from input dir. (since testreport no longer run here).
741    o pkg/thsice:
742     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
743     - fix reshaping of sea-ice just after advection:
744       melt all the ice only if ice-volume is too small.
745     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
746       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
747     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
748    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
749      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
750    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
751      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
752      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
753      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
754      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
755      -> update output.txt
756    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
757     this affects truncation error: -> update output.txt of exp:
758      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
759      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
760    
761    checkpoint59f
762    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
763    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
764      a bounded range (in forward mode)
765    o pkg/ecco, ctrl, autodiff and mom_common:
766     internal parameter controls, completements of implementations
767    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
768    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
769      (not seem any difference in testing results).
770    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
771       at face corners.
772    o pkg/generic_advdiff:
773     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
774      loop range indices for computing vertical advection tendency
775      and do the calculation in the interior only (no overlap) ;
776      for now, only implemented for SOM advection (to save CPU time).
777     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
778    o exch2 adjoint
779      First set of changes:
780      - add exch2 hand-written adjoint templates
781      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
782        This will require cleanup in pkg/autodiff/*.F
783        (changed routines currently kept separate in verif. code/)
784      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
785        that used to hide exch2 or cubed-sphere specific code
786        (commented via 'cph-exch2')
787    o pkg/seaice
788      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
789    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
790       output of global_ocean.cs32x15.thsice .
791    
792    checkpoint59e
793    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
794      for B-grid vector (not yet tested) and C-grid vector (<- only used
795      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
796    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
797      (#ifdef ALLOW_SALT_PLUME)
798    o gather_2d/scatter_2d: removed halo regions
799    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
800      scheme and the corresponding test case (under front_relax dir). For now,
801      only available with Skew-flux form and not yet tested in realistic set-up.
802      adjoint: store directives updated, but gradient checks deteriorated,
803      so maybe GM/Redi adjoint is now broken.
804    o seaice adjoint
805      * add AREA, HEFF, HSNOW as control variable
806        (should not change lab_sea results)
807      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
808    o pkg/seaice:
809      * added computation of saltFlux in seaice_growth;
810        For time being, sea ice salinity is assumed constant
811        contribution of snow flooding to freshening of sea ice is neglected.
812        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
813        defaults to 0.0 in order to maintain backward compatibility.
814        Typical values for SEAICE_salinity are 4 to 10 g/kg.
815      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
816      * added SEAICE_availHeatFrac, which specifies fraction of surface level
817        heat content used to melt or grow ice
818      * commented out cap of HICE: it helps keep ice thinner
819      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
820      * applied OBCS T/S mask to HEFFM sea ice mask
821    
822    checkpoint59d
823    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
824     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
825     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
826    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
827     and change default value of parameter "GM_Small_Number";
828     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
829       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
830       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
831    o pkg/ecco: cost function when applying pkg/smooth to controls
832    o pkg/ctrl: add forcingPrecond run time parameter
833    o pkg/seaice:
834     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
835     - fix bug in metric terms of u-equation in LSR solver (implicit part),
836       changes verification/lab_sea
837     - rearrange implicit part of u-equation in LSR solver to make it easier to
838       read, understand, and debug. This causes changes at the truncation level.
839     - fix (serious) bug in the boundary conditions (sign error in the implicit
840       part) of the LSR solver. Changes all LSR results.
841     - fixed problem with HSNOW initialization to avoid thick snow when AREA
842       is initilized with small values - does not change lab_sea results.
843     - added HsnowFile initialization capability
844    o pkg/smooth: addition to model/src and pkg/ctrl so allow
845     initialization of pkg/smooth and application to control vector
846    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
847    o dependencies: pkg/profiles requires pkg/cal
848    o pkg/profiles:
849     - added option ALLOW_PROFILES_GENERICGRID
850         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
851         that interpolation information (grid points and coefficients) is provided
852         within the netcdf input files.
853         -> sample matlab scripts can be found in MITgcm_contrib/gael
854         that allow you to prepare netcdf input files.
855     - also modified: cleaner include statements, cleaner error print statements,
856       cleaner stops when error, and more tests of the netcdf input files consistency.
857    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
858    o pkg/seaice:
859     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
860       requires a new routine: seaice_diagnostics_fill.F
861     - make sure that seaice does not move if not forced (pressure replacement
862       method, Hibler and Ip, 1995), changes results
863     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
864     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
865       It is turned off by default (=-1.), because it changes the results.
866     - make it possible to read AREA from a file, too.
867    
868    checkpoint59c
869    o add S/R and diagnostics for oceanic mixed-layer depth
870    o move GMRedi call after all vertical mixing schemes (including KPP)
871    o pkg/thsice:
872     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
873      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
874    o pkg/obcs:
875     - bug fix for balance code
876    o pkg/seaice:
877      - allow values of SEAICE_elasticParm > 1
878      - add new parameter SEAICE_evpTauRelax as an alternative
879        to SEAICE_elasticParm
880      - make lsr boundary conditions free slip (by default), changes result
881      - add code for no slip boundary conditions for lsr
882      - set minimum of zeta to zero (and not 4e8) (changes results)
883      - add a cap on AREA after advecting AREA if seaice_growth is not called
884    o change calculation of Visbeck K:
885      - no longer depend on tapering scheme; instead, compute slope (limited
886        by GM_maxSlope). this is equivalent to what was comuted before with
887        clipping or linear tappering.
888      - fix vertical averaging (wrong by 1/2 level)
889      - leave the old version (but will not be maintained) within
890        #ifdef OLD_VISBECK_CALC / #endif
891      - update output of exp. ideal_2D_oce
892    o change error catch in calc_r_star to improve vectorization
893    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
894      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
895    o adjoint:
896      Re-organized adjoint checkpointing according to Matt Mazloff
897      (but with modifs/completions/cleanups)
898      Storing is now bundled into large arrays to optimized I/O
899      (and second step in cleanup of the_main_loop)
900    
901    checkpoint59b
902    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
903      - export/import (between ocean & coupler) fields needed for ocean DIC.
904    o pkg/seaice:
905      - get rid of three more exchanges seaice_calc_viscosities (required
906        different loop boundaries in seaice_lsr and seaice_ocean_stress)
907      - bug fix in seaice_ocean_stress (update of lab_sea required)
908      - reduce loop boundaries to necessary minimum also in seaice_evp
909      - go back to the old way of computing deltaC/Z as the adjoint likes that
910        better
911    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
912      passive tracer to an Age Tracer) + update output.txt
913    o pkg/exf:
914      - implement A-grid / C-grid selection for wind-stress input files.
915      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
916      for now, in exf_bulk_largeyeager04.F only :
917      - change implementation for case where windspeed + 2. components wind-stress
918        are read-in. AND use rhoConstFresh to convert evap.
919    o pkg/seaice:
920      - use correct EXCH_UV for wind-forcing (on A-grid).
921      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
922        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
923    o pkg/exf:
924      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
925      EXF_INTERPOLATION:
926      - merge global_with_exf/code version of exf_interp_read.F
927        to the main code ;
928      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
929        reading the file ; Important: This options needs to be defined to recover
930        previous code.
931        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
932      - no longer loose real*8 precision along the way when using exf_iprec=64.
933    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
934      - change discretisation of evp-solver in order to avoid another exchange
935        (changes lab_sea) and clean up a little
936      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
937        help the adjoint (this also changes the results slightly)
938      - add a few "_d 0" where they had been missing in seaice_evp.F
939      - cleaning up: remove unused seaice_calc_rhs.F
940    o pkg/exf: some cleaning-up:
941      - change various "constants" into runtime parameters
942      - cleaned-up Large&Yeager04 routine which should eventually
943        replace exf_bulkformulae.F (changed names of S/R and CPP)
944        and merged various ALLOW_ATM_WIND options
945     only used with thsice pkg (in thsice_get_exf.F):
946      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
947        which are used when useStabilityFct_overIce=TRUE (= the default)
948      - change default values of ice & snow emissivity and scale downward LW
949        by ice & snow emissivity.
950    o pkg/thsice:
951     fix few little problems, in thsice_calc_thickn.F:
952      - growth vertically (and not laterally) if iceFrac == iceMaskMax
953      - melt only laterally if hIce < hThinIce (as the comments say)
954      and in thsice_extend.F:
955      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
956      - start to form ice as soon as the minimum ice-volume is reachable.
957     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
958      and cpl_aim+ocn
959    o pkg/kpp
960     - move computation of surface related input fields to KPP into a new
961       subroutine kpp_forcing_surf.F
962     - remove wrong (within bi,bj loops) EXCH calls.
963     - little cleaning (add argument myThid in last position, cvs header ...)
964     - for now, fix conservation problem by exchanging KPPviscAz (may not
965       be the best fix)
966    o pkg/seaice
967     - check for inconsistent evp parameter/cpp-flag combination
968     - remove leftover errIO flat for obsolete name list error handling
969    o OpenAD
970     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
971    
972    checkpoint59a
973    o pkg/seaice: some parameter clarifications and a little bit of clean up
974    o pkg/thsice: rename run-time parameters:
975       himin       -> hIceMin
976       himin0      -> hThinIce
977       hihig       -> hThickIce
978       i0          -> i0swFrac
979       transCoef   -> bMeltCoef
980       frac_energy -> fracMelting
981      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
982       with default values (for now) that do not change the results.
983      remove old version of thsice vars advection in pkg/seaice.
984    o in FFIELDS.h:
985      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
986      - make pLoad & sIceLoad always available (but still only used if
987         ATMOSPHERIC_LOADING is #define).
988    o pkg/kpp: replaced _KPP_RL with _RL
989    o bug fixes for vertical diffusivity computations when both KPP and
990        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
991        are no longer updating the vertical diffusivity array
992        (passed as argument) but are (re-) setting those arrays.
993    o pkg/seaice: fix bug in evp solver, while doing that
994      - change (improve?) discretization of stress computations for both
995        cgrid-lsr and evp solver
996      - add a new routine to compute strain rates
997      - the above changes lab_sea results
998      - add no slip conditions for evp solver (off by default), lsr-version
999        may follow
1000      - fix exchange for shear at Z-points (does not change lab_sea)
1001      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1002        (to force the user to pick a time step since there is not "safe" way
1003        of choosing it)
1004      - add principal stress diagnostics
1005      - rearrange fields for evp a little to avoid having to call a: too many
1006        exchanges and b: exchanges for stress trensor components which we do
1007        not have.
1008      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1009        of evp, complete rewrite for lsr case (latter is does not yet work
1010        in all cases)
1011    o pkg/kpp: add code to have mixing in shelf ice caverns
1012      - add myThid to all kpp routines (long overdue)
1013    
1014    checkpoint59
1015    o pkg/exf:
1016      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1017        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1018      - move exf header files from lower_case.h to UPPER_CASE.h ;
1019        add missing cvs Header & Name
1020      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1021      - add namelist param. selectStressGridPosition, exf_monFreq
1022      - retire many _CLIM routines, and remove data.exf_clim
1023        + params moved to data.exf
1024        + climsst, climsss now handled by exf_set_gen, i.e.
1025          climss?period=0 refers to constant field,
1026          climss?period=-12 to monthly forcing
1027      - split up namelists in data.exf
1028    o pkg/seaice:
1029      - remove seaice_exch and seaice_exch_uv
1030      - remove superfluous exchange of theta
1031      - add myThid to seaice_budget_ocean/ice
1032      - add new interface for atmospheric wind forcing (C-grid only)
1033        + new routine
1034        + two new field (taux, tauy for stress over ice)
1035        + removed one global field (DAIRN) for C-grid case only
1036    o pkg/thsise
1037      - 2nd set of modifs for thsice adjoint in conjunction with exf
1038    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1039    
1040    checkpoint58y_post
1041    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1042      vertical diffusivity, similar to that in MOM4; turned on using
1043      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1044      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1045    o Added capability for 3D specification of background vertical diffusion
1046      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1047      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1048      "data" file that contains the 3D vertical diffusivity coefficients.
1049    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1050      - add code within pkg thsice to advect & diffuse sea-ice fields
1051      similar to (and will replace) what has been added in  seaice_advdiff.F,
1052      but: - conserving Mass, Heat & Salt.
1053           - better when using non-linear advection scheme (not yet fully tested)
1054           - can also be used in atmospheric set-up (for now, only the diffusion).
1055    
1056    checkpoint58x_post
1057    o IO option for global-file compact format:
1058      - add options when generating topology (utils/exch2/matlab-topology-generator)
1059      - add I/O capability (pkg/mdsio).
1060      - adapt utils/matlab/rdmds.m to read this format.
1061      for now long-line format not yet supported by pkg/mdsio (& exch2).
1062    o shelfice: add a few diagnostics
1063    
1064    checkpoint58w_post
1065    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1066      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1067      (and replace horiVertRatio in NH code).
1068      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1069                         and tutorial_plume_on_slope (sensitive to truncation)
1070    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1071      directly to drive seaice model (C-grid only)
1072    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1073     - reintroduce computation of wind from stress,
1074     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1075       mass points to avoid tau = 0
1076     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1077    o rdmnc.m: make it work with "global" files created with gluemnc
1078    o rdmnc.m : some improvements in dealing with singleton dimension
1079      (tested on all testreport mnc output files).
1080    o genmake2: disable pkg/profiles if netcdf test fails.
1081    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1082    o move call to cal_readparms up to make calendar parameters/variable available
1083      to all packages
1084    
1085    checkpoint58v_post
1086    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1087      useDynP_inEos_Zc tested.
1088    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1089    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1090      and portions thereof.  See read_cs.txt for description and examples.
1091    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1092      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1093      following the great-circle arc between those 2 points.
1094    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1095      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1096    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1097     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1098     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1099     - still needs work (not working with some options ; efficiency to improve)
1100       and serious testing.
1101     - use this scheme for temperature & salinity in 2 advection test exp.:
1102       advect_xy & advect_xz, respectively.
1103    
1104    checkpoint58u_post
1105    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1106    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1107    o testreport: add option "-skipdir" to skip some test.
1108    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1109      momentum calculation.
1110    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1111    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1112      remove checkpoint.F and the_correction_step.F (no longer used);
1113      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1114    o add option (linFSConserveTr) to correct for tracer source/sink due to
1115      Linear Free surface
1116    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1117    o pkg/thsice: fix reading mnc-pickups
1118    
1119    checkpoint58t_post
1120    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1121    o pkg/mdsio:
1122     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1123       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1124       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1125     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1126     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1127       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1128     - new S/R (to replace MDSWRITEMETA), which allows to write more
1129       informations (variable names, time ...) to meta files.
1130     - modify rdmds.m to give back the meta file content.
1131    o pkg/diagnostics: change vertical interpolation to be safer, and more
1132       flexible (define p-levels to interpolate to in data.diagnostics);
1133      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1134       diagnostic pointer.
1135    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1136    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1137    o fix multi-category seaice:
1138     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1139       SEAICE_MULTICATEGORY
1140     - fix short wave heat flux
1141    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1142       and allow to use EVP solver. Change forward lab_sea: test both EVP
1143       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1144    o Initial check-in of lab_sea adjoint
1145      (very similar to natl_box_adjoint/code_seaice)
1146      * used C-grid and EVP solver
1147      * used KPP, GM/Redi
1148      * uses inAdExact=.TRUE.
1149      * gradient checks fail for both ADM and TLM
1150        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1151        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1152        issue is related to forward mismatch between g77 an ifort
1153    o pkg/seaice: overhaul of thermodynamics
1154     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1155     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1156     - move a few global fields out of SEAICE.h into seaice_growth.F and
1157       make them 2D (FICE/QNETO/ ...)
1158     - remove FO (it is the same as QNETO)
1159     - introduce a few local fields to avoid modifying external fields such
1160       as atemp, etc.
1161    
1162    checkpoint58s_post
1163    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1164      changed exf_set_gen.F so that
1165        genperiod=0 means input file is one time-constant field and
1166        genperiod=-12 means input file contains 12 monthly means
1167    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1168      this affects truncation error ; generate new output file for exp. which
1169      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1170        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1171        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1172        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1173        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1174        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1175    o start implementation of deep-atmosphere and anelastic formulation
1176    o verification: remove 2nd copy of input files and use script "prepare_run"
1177      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1178    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1179    o profiles: fix for multithreaded case
1180    
1181    o diagnostics: rename few diags:
1182      s/'PRESSURE'/'RCENTER '/g
1183      s/'TICE    '/'oceFreez'/g
1184      s/'TAUX    '/'oceTAUX '/g
1185      s/'TAUY    '/'oceTAUY '/g
1186      s/'SWFLUX  '/'oceQsw  '/g
1187      s/DIFx/DFxE/g
1188      s/DIFy/DFyE/g
1189      and add few ocean-forcing diagnostics:
1190      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1191    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1192      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1193      as actual snow thickness.  It now refers everywhere to effective snow
1194      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1195    
1196    checkpoint58r_post
1197    o modifications to pkg/seaice/growth.F, which change results of
1198      lab_sea experiment: fixes pertain to melting snow over open water, to
1199      masking EVAP under sea ice, and to using the correct AREA variable for
1200      computations of EVAP, PRECIP, HSNOW, and GHEFF
1201    o add ability to read bathy, salt, and theta using MNC (off by def)
1202    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1203      both are turned off by default and do no change any results
1204    o seaice advection with pkg/thsice: a step toward the use of non-linear
1205      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1206    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1207      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1208      in natl_box (affects results @ truncation level: update output.txt)
1209    o multi-threading and IO:
1210      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1211      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1212        (needed to work with SingleCpuIO): tested in all verif. exp.
1213    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1214      affects the results (but none of the verification test uses this scheme).
1215    o Adding some pkg/diagnostics capability to pkg/seaice
1216      (will certainly be subject to changes)
1217    o ctrl: adding new control variables:
1218      lwflux, lwdown, evap, snowprecip, apressure, runoff
1219    
1220    checkpoint58q_post
1221    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1222      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1223      high_res_cube configuration by 4% on Columbia.
1224    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1225      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1226      dynamical allocation (seems to work in multi-threaded).
1227    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1228      single CPU io) so that TAF does not have to see EESUPPORT.h
1229    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1230    
1231    checkpoint58p_post
1232    o obcs: stop if obcs is used with useCDscheme = .true.
1233    o shelfice:
1234     - fix a sign error so that no slip at shelfice interface works
1235     - remove stop for combination non-hydrostatic code and shelfice. That does
1236       not mean, that the results are correct, but at least they are numerically
1237       stable
1238    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1239    o added adjoint exch routined for all exch*3d* routines
1240      and updated flow directives
1241    
1242    checkpoint58o_post
1243    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1244      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1245    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1246      and clean-up reading/writing of pickup files.
1247    o fix local version of read/write pickup (NH part) in rotating_tank/code
1248    o simplify EXCH interface:
1249     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1250     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1251    o added the regrid package
1252    o shelfice:
1253     - add a simple boundary layer scheme to reduce noise
1254     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1255    
1256    checkpoint58n_post
1257    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1258       local variable (not in common block).
1259    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1260      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1261      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1262        to work with SingleCpuIO.
1263    o add "_d 0" to real constant of pkg/cfc subroutines ;
1264       update exp. cfc_exemple & tutorial_cfc_offline output files.
1265    o multi-threading and IO:
1266      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1267        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1268      - barrier before and after reading.
1269      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1270      - avoid using MDS_WRITELOCAL for LAND pkg output.
1271      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1272        common-block variables ; Allows multi-threading with master-thread IO.
1273    o change default MAX_NO_THREADS from 32 to 4 ;
1274      and stop cleanly when MAX_NO_THREADS is too small.
1275    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1276    
1277    checkpoint58m_post
1278    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1279       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1280    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1281       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1282       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1283    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1284        add MITgcm_tutorials (= code + all the tutorials)
1285    o ecco, option to compute cost for total ssh (mean+anom)
1286    o consistent with addition of ptracer and ssh in pkg/profiles
1287    o profiles: adding ptracer and ssh
1288    o testreport: change multi-test output-file name
1289      (from output.txt.{name} to output.{name}.txt)
1290    o profiles: now ok for mutli-tiles case
1291    o seaice: add 4 parameters for different advection schemes for area,
1292      (effective) seaice thickness, enthalphy, and snow height. Their default
1293      is the standard parameter SEAICEadvScheme
1294    o calc_gw:
1295     - add cosFacU in zonal viscous flux (harmonic.visc.).
1296     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1297       of tutorial_plume_on_slope.
1298    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1299    o calc_gw: true flux-form, account for horizontal grid spacing.
1300      update rotating_tank results, but not plume_on_slope (affected at
1301      truncation level, 11 digits).
1302    
1303    checkpoint58l_post
1304    o calc_gw:
1305     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1306     - remove side-drag for now (need to fix it); update plume_on_slope results.
1307     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1308    o commit code to make SST/SSS weights spatially variable
1309      (based on either variable in-situ or variable initial T/S weights)
1310    o pkg/ecco:
1311      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1312        now based on horizontally varying weights wthetaLev, wsaltLev
1313      * cost_averagesflags now returns year indices in addition to day, month
1314      * sflux balance is performed on annual basis
1315        (sflxumm, sfluxmm2, bal_sfluxmm)
1316      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1317        including separate counting and multipliers
1318    o pkg/rbcs
1319      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1320    
1321    checkpoint58k_post
1322    o testreport:
1323     - always build in dir. "build" (if not there, mkdir build instead of building
1324       & running in input)
1325     - run in dir run (if it exists), in build otherwise.
1326     - call prepare_run (if input/prepare_run exists)
1327     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1328    o pkg/exf modifications to interpolation and rotation routines for more
1329       reasonable treatment of North Pole singularity: for tracers North Pole
1330       value is set to northernmost zonal-mean value, for zonal velocity it is
1331       set to zero, and for meridional velocity it is set to northernmost value.
1332    o pkg/exf/exf_check_range.F
1333     - add tile index to diagnostics and move stop statement to the very
1334       end of the routine.
1335    o pkg/diagnostics: (diagnostics_main_init.F)
1336      define title of isomorphic variables according to the current config.
1337    o pkg/thsice with pkg/seaice dynamics:
1338    - fix domain of computation (interior only, required for exf) and do exchanges
1339    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1340    o towards a standard way of dealing with multi-threading in MONITOR
1341      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1342    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1343       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1344    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1345    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1346    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1347       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1348    o tracer advection:
1349     - clean-up and simplify calc_common_factors.F
1350     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1351       advection subroutine (but still not used within DST advection S/R)
1352    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1353    
1354    checkpoint58j_post
1355    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1356      from file (collects calls previously in FORWARD_STEP)
1357    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1358    o adjoint store dir. adjusted accordingly
1359    o genmake2
1360      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1361    
1362    checkpoint58i_post
1363    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1364      on wind stress (SEAICEstressFactor defaults to 1.)
1365    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1366      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1367    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1368      on CS-grid: no longer loosing mass.
1369    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1370    o pkg/ggl90: fix sloppy output and fix a bug
1371    o pkg/seaice: added SEAICEuseEVPpickup parameter
1372      - Set to false in order to start EVP solver with
1373        non-EVP pickup files when using SEAICEuseEVP
1374      - fix sign error in diffusion in seaice_calc_rhs
1375    
1376    checkpoint58h_post
1377    * Modifications for bottom topography control
1378      o replace hFacC by _hFacC at various places
1379      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1380      o add non-self-adjoint cg2d_nsa
1381      o update autodiff support routines
1382      o re-initialise hfac after ctrl_depth_ini
1383      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1384    * Adding verification for 5x5 box (4-layer) bottom topography control
1385    
1386    checkpoint58g_post
1387    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1388       used for mean seasonal cycle, mean diurnal cycle); add an example
1389       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1390    o pkg/ggl90:
1391      - add parameter (minimum surface kinetic energy)
1392      - fix bug (avoiding division by zero)
1393    o couple pkg/thsice to pkg/seaice:
1394      - modify advection in seaice to accomodate new scalar fields to be advected
1395      - only muliDimAdection scheme work with seaice/thsice
1396      - mapping of thsice-variables to seaice-variables, back and forth
1397      - does not break the verification experiments, but does not give the
1398        desired results either
1399    o pkg/seaice
1400      - make (default) second order advection a bit less confusing?
1401    
1402    checkpoint58f_post
1403    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1404      to pkg/seaice):
1405      - new routines thsice_map_exf and thsice_get_exf provide the interface
1406      - add an additional formal parameter to thsice_solve4temp
1407    o pkg/exf:
1408      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1409      - correct Stefan-Boltzmann constant
1410      - new parameter for longwave surface emittance
1411      - separate some stuff from exf_bulkformulae into new routines  
1412        exf_radiation, exf_wind
1413      - add new parameters and constants: longwave emissivity for ocean, ice
1414        and snow, evaporation parameters over ice
1415      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1416        either wind from stress or stress from wind
1417    o pkg/thSIce:
1418    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1419    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1420       and THSICE_CALC_THICKN
1421    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1422    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1423      to make debugging easier.
1424    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1425    o pkg/bulk_force:
1426      - clean-up comments and parameters ;
1427      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1428    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1429      generate new output for test-experiment: aim.5l_cs.thSI
1430    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1431      testreport accordingly
1432    
1433    checkpoint58e_post
1434    o SEAICE_CGRID adjoint done
1435    o R_STAR adjoint implemented.
1436      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1437      * need to sort out init. of h0facc, etc.
1438    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1439      to be able to use it in pure forward.
1440    
1441    checkpoint58d_post
1442    o upgrade simple test-experiment to tutorial example:
1443     step.1: duplicate the experiment and (step.2) will remove the old copy.
1444      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1445      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1446      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1447      tutorial_global_oce_biogeo    <- copy of dic_example
1448      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1449      tutorial_plume_on_slope       <- copy of plume_on_slope
1450      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1451      tutorial_global_oce_optim     <- empty for now (David ?)
1452      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1453     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1454    o correct a sign problem in cost_scat.F
1455    o obcs and ptracers: fix boundary conditions for advections schemes
1456      with larger stencil
1457    o thsice adjoint: start
1458    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1459      completeness
1460    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1461      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1462    o ptracers adjoint:
1463      * avoid extensive recomputatations
1464      * fix missing re-init. of gptr (missed by TAF)
1465    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1466      me to turn off the excessive output to STDOUT that this package produces
1467    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1468      and add those terms in Vector-Invariant formulation.
1469    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1470      if the control period (xx_hfluxperiod etc) is 0
1471    o in profiles pkg, clean routines and fix details
1472    o in ecco pkg, reading ssh data:
1473      fix problem in case the model does not start at iter0=0
1474    o fix mnc-pickup/restart for ptracers
1475    o new package prifiles:
1476      code to compute profile-based cost by Gael Forget
1477      (modifs in ecco, ctrl, autodiff)
1478    o Benign bug fix in initialization (spotted by M. Mazloff) of
1479      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1480    
1481    checkpoint58c_post
1482    o adjoint: finish NLFS adjoint and provide reference output in
1483      verification/global_ocean.90x40x15/results_ad_nlfs
1484    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1485      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1486      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1487      with SEAICE_CGRID defined.
1488    o move calendarDumps from "data" to "data.cal" and clean-up the code
1489      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1490    o add useEXF & useCAL flags (for now, set in hard-coded way)
1491    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1492      (were missing in NH mode, and wrong in quasihydrostatic mode).
1493      waiting for Chris updated version of calc_gw to add those CALLs.
1494    o fix bug in quasihydrostatic S/R ;
1495      add a test for this option: global_ocean.90x40x15.qshyd
1496    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1497      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1498    o add on/off flag useOffLine for package OFFLINE
1499    o seaice:
1500      - modify advection so that it works also on the C-grid
1501      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1502        problem in multi-tile runs with C-grid
1503      - add flags for clipping ice velocities and/or masking solver forcing
1504      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1505        C-grid solver
1506      - added a few comments to seaice_diffusion.F
1507      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1508        are now exclusive)
1509      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1510        required re-ordering the code a little:
1511       + make DAIRN global variable (defined in SEAICE)
1512       + move computation of the viscosities eta and zeta into a new separate
1513         routine (because I need to recompute them in seaice_ocean_stress.F)
1514    
1515    checkpoint58b_post
1516    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1517      update output.txt of exp. aim.5l_cs.thSI
1518    o various mnc cleanups and improvements:
1519      + shrink lookup tables by factor of ~4
1520      + better error reporting when running out of lookup space
1521      + able to handle longer path/file names (up to 500 chars)
1522    o adjoint:
1523      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1524      - TBD: "hidden" mom_vecinv recomp. in dynamics
1525    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1526     (allow to differentiate between forcing components using new integer flags:
1527      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1528     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1529    o ecco
1530      - enable trend removal from SSH anomaly obs.
1531    o adjoint
1532      - a fix for PmEpR when #undef EXACT_CONSERV
1533      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1534      - try to fix "hidden" recomp. in forward_step for NLFS
1535        (NLFS seems broken sometimes after I checked it in)
1536    o seaice:
1537     - add c-grid version of the dynamic solver:
1538       + three new routines that are the c-grid substitute lsr, dynsolver
1539         and ostres
1540       + put a few fields that were local to dynsolver into global common
1541         blocks, so that I can move the computation of stresses etc into
1542         seaice_lsr (saves coding but may break the adjoint).
1543     - replace more hardwired parameters by runtime parameters
1544     - add ice masks that mask the rhs of the implicit solvers where there
1545       is no ice (commented out in seaice_dynsolver, because i am not sure
1546       if this works properly), eventually this should replace the clipping
1547       of ice velocities in seaice_dynsolver to +/-40cm/s.
1548    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1549      include it only where its needed
1550    o move balancing of fluxes before the call of external_forcing_surf
1551    o seaice:
1552      - correct units of turning angles (now they are really in degrees)
1553      - move computation of GWATX/Y out of main routine into dynsolver
1554      - initialize GWATX/Y in seaice_init
1555    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1556      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1557    o seaice: add runtime flags for turning angles (default to zero)
1558    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1559      and trend from exf forcing and ctrl control adjustments
1560    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1561      (since checkpoint57x_post)
1562    o change the default rotation period to 86164.s = the Earth rotation
1563    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1564      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1565    o seaice advection: add code for choosing between the default (2nd order
1566      central differences) and multiDim advection schemes provided by
1567      pkg/generic_advdiff
1568    o seaice:
1569      - removed all references to SEAICE_GRID.h fields from
1570        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1571        (cubed-sphere configuration will change a little)
1572      - grid computations in seaice_init are obsolete now.
1573      - cleaned up code a little so that is easier to read (hopefully).
1574      - added new (better?) discretizations of default advection and diffusion
1575        (turn on with SEAICEuseFluxForm)
1576      - replace 1 in 3d global fields by kSurface in growth.F
1577      
1578    checkpoint58a_post
1579    o seaice:
1580      - bug fix in advect.F
1581    o shelfice:
1582      - separate shelfice load anomaly from pload (breaks with time
1583        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1584        Its default is 0., but it may be computed more cleverly from (unknown)
1585        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1586        done offline. A good approximation of the pressure load anomaly is
1587        necessary to avoid large initial adjustment processes underneath
1588        deep-reaching shelfice.
1589      - small fix in ISOMIP shelfice_thermodynamics
1590      - add more sophisticated thermodynamics of Hellmer (1989), this is
1591        now the default
1592      - give a few constants more intuitive names
1593    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1594      if bulk formulae are used in long integration (especially EmPmR). Turn
1595      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1596      if balancePrintMean, the imbalance that is substracted is printed to
1597      STDOUT.
1598    o fix bug (typo) in obcs_apply_eta.F
1599    o add a new package shelfice which enables us to model the circulation
1600      underneath shelf-ice with draughts of hundreds of meters.
1601     - works
1602     - to do: + include improved thermodynamics
1603              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1604                instead of new field kTopC
1605              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1606                instead of new field R_shelfIce and new code in ini_depth.F
1607                and ini_mask_etc.F?
1608              + adjust vertical mixing schemes?
1609    o seaice pkg:
1610     - add a cpp-flag to include a simple formula for a salinity dependent
1611       freezing point of sea water at the surface
1612     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1613       meridional stresses are now different (and hopefully correct)
1614    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1615       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1616       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1617    o pkg/diagnostics: add options and parameters for regional-statistics
1618       diagnostics ; define regions by reading a region-mask from a file
1619       (might add other options later)
1620    o pkg/bulk_force:
1621     - add option and parameters to use AIM surface-flux formulae.
1622     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1623       others forcing fields (defined in PARM05, parameter file "data") are loaded
1624       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1625     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1626     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1627     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1628       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1629     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1630    
1631    checkpoint58
1632    o add "--embed-source" option to genmake2 which, when the supporting
1633      tools can be compiled (as determined by genmake2) will turn on the
1634      embed_files package which then embeds the entire MITgcm source code
1635      (*.[fFhc] + Makefile) used for the build within the executable
1636      - requested by CNH but off by default
1637      - adds a paltry <9MB to the mitgcmuv executable in most cases
1638      - only writes the output when useEMBEDSRC in eedata is true
1639    o clean up 3-dim. relaxation codes:
1640      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1641      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1642      * Thanks to Tom Haine for testing!
1643    
1644    checkpoint57z_post
1645    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1646      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1647    o fix the pickup behavior for obcs in combination with ptracers
1648    o fix a bug in ptracers_external_fields_load
1649    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1650      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1651    o transfered surface NH pressure to eta field (if exactConserv).
1652    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1653         and update lab_sea output.txt file.
1654    o completing 3-dim. relaxation code: additional term
1655         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1656      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1657      * At compile time, in "EXF_OPTIONS.h" set
1658          #define  ALLOW_CLIMTEMP_RELAXATION
1659          #define  ALLOW_CLIMSALT_RELAXATION
1660      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1661          tauThetaClimRelax3Dim = 15552000.0,
1662          tauSaltClimRelax3Dim  = 15552000.0,
1663      * 3 cases:
1664          1) Use a constant-in-time 3-dim. field
1665          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1666          3) Real-time relax. to time-evolving prescribed field
1667    o Adding Laplacian-type smoothness constraint on
1668      initial and boundary (forcing) controls (ic, bc)
1669      * enable at compile-time via
1670        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1671      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1672      * Absolute scale somewhat unclear so far
1673      * no area weighting was included since no other cost term does so far
1674    
1675    checkpoint57y_post
1676    First step for a NLFS adjoint
1677    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1678    o new init. routines for calc_r_star, calc_surf_dr
1679    o still need to deal with ini_masks_etc
1680    o testreport seemed happy
1681    checkpoint57y_pre
1682    
1683    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1684    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1685    o add new offset feature to offline pkg (plus minor cleanup)
1686    o cfc fixes for final year of integration
1687    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1688      be in GCHEM_OPTIONS).
1689    
1690    checkpoint57x_post
1691    o fix testreport Pb in multiple test experiment.
1692    o cleanup our namelist syntax in verification:
1693      - make it more F95 standards compliant (some work still needed)
1694      - allows the vast majority of our tests to work with gfortran
1695    o Non-Hydrostatic:
1696     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1697     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1698    o Allow to apply AB on T,S rather than on AB(gT,gS):
1699     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1700     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1701       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1702     - need a "clever" read_pickup to restart from the other AB formulation
1703    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1704    o remove some unused variables (reduces number of compiler warnings)
1705    o adjoint
1706      * Disable useVariableViscosity for adjoint for time being
1707        (there are a number of extensive recomputations)
1708      * Initialize certain variables needed for adjoint
1709    
1710    checkpoint57w_post
1711    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1712                 fix the singleCpuIO RS version of MDSWRITEFIELD
1713       and add a WARNING if using globalFiles=T with multi-processors.
1714    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1715      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1716    o tracer advection scheme:
1717      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1718       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1719       was not very convenient).
1720      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1721       (further tests needed for the implicit DST & Flux-Limiter schemes).
1722    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1723      and sRef for convenience, handy, when you want to initialize
1724      ptracers in a large domain with a constant non-zero value. Also,
1725      untangle ptracers_init.F a little.
1726    
1727    checkpoint57v_post
1728    o change dome exp. to use variable viscosity in side-drag terms.
1729    o remove all the files from the cfc_offline test since they are now
1730      incorporated into tutorial_cfc_offline which has been producing
1731      identical results for a few days of testing
1732    o add new parameter: sideDragFactor to enable half-slip-side BC
1733      and change side-drag S/R to use viscosity from mom_calc_visc
1734      (can switch back by setting sideDragFactor=0.); affects results at
1735      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1736       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1737    o vorticity & strain are now computed without masking, to account for
1738      no-slip-side BC in variable viscosity calculation ; mask is applied
1739      anyway later on, before computing advection/coriolis terms.
1740    o modify exp4 to test new obcs support for reading from external files
1741      and for passive tracers
1742    o fix behavior of ptracers_monitor when monitor output is written to a
1743      netcdf-file; still not independent of monitor.F (writes in the same
1744      file).
1745    o change default value of tRef (put a uniform, meaningful value for ocean
1746      & atmos) and initialize sRef (was missing, as Martin mentioned).
1747    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1748      to be proportional to enstrophy dissipation length.  Thus,
1749       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1750      This is now consistent with Smagorinsky and with the manual.
1751    
1752    checkpoint57u_post
1753    o OBCS and PTRACERS: add open boundary support for passive tracers
1754      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1755        OB-values from file; this is not different from the way theta and salinity
1756        are treated
1757      - however, Orlanski-radiation conditions are not supported, and the model
1758        will stop if you use pTracers and Orlanski at the same time.
1759      - beefed up the rountine obcs_external_fields_load: now only those open
1760        boundary values are overwritten with values from files for which there
1761        are really files, otherwise the OB-fields remain untouched. This makes
1762        it possible to use different OBs at different ends of the domain (as
1763        with EXF)
1764    o reduce number of exch calls in shap_filt (s2).
1765    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1766      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1767    
1768    checkpoint57t_post
1769    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1770    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1771      same truncation, independent of the face number: affects affects several
1772      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1773    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1774      note that biharmonic viscosity + no-slip was not tested in any experiment.
1775    o fix bug in non-linear free-surf side-drag ; generate new output for
1776      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1777    o make mnc honor the writeBinaryPrec flag for most kinds of output
1778    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1779    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1780      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1781    o add brackets in multi-terms sum to get same truncation, independent of
1782      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1783      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1784    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1785      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1786      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1787      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1788      Suggested values of viscosity parameters found in mom_calc_visc.
1789      Many new viscosity diagnostics available.
1790    
1791    checkpoint57s_post
1792    o Add clearing-house for viscosity calculations, mom_calc_visc and
1793      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1794      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1795      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1796      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1797      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1798      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1799      ViscAhStrain and viscAhTension are now retired.
1800    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1801    o In response to JMC's bug report, genmake2 now ignores any soft-links
1802      that it finds in the *current* directory when searching for files.
1803      Soft-links found in any other source directories will still work as
1804      they did before.
1805    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1806      a C routine to unlimit the stack size
1807    o mnc-ify pkg/aim snapshot vars
1808    o mnc-ify pkg/land as requested by Daniel
1809    o various changes to mnc including:
1810      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1811      - output can now be grouped so that all files within a group
1812          change the ITER portion of their names in lock-step together
1813      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1814          and works with both EXCH1 and EXCH2 (but needs more testing)
1815      - writing works for all verification test cases w/ g77 on Linux
1816    
1817    checkpoint57r_post
1818    o make MNC variable initialization happen earlier
1819    o add diagnostics for (almost) each term of the momentum Eq.
1820    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1821    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1822    o remove MINIMAL_TAVE_OUTPUT option ;
1823      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1824    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1825      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1826    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1827    o add time-dependent SST, SSS control
1828    o cost terms in ecco/ modularized (new cost_generic.F)
1829    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1830    o new infrastructure for seaice model vs. obs misfits in seaice/
1831      * driver from the_main_loop.F is seaice_cost_driver.F
1832      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1833      * gradient check in Exp. 6a of natl_box_adjoint/
1834    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1835      (see README file)
1836    
1837    checkpoint57q_post
1838    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1839    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1840      - bug was reported by Jean-Michel and Ian Fenty
1841    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1842      update exp. cpl_aim+ocn output.
1843    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1844      Needed for high-res. runs with large global files
1845      to be able to limit tapelev size
1846    o Changed some tests for adjoint:
1847      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1848      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1849      * global_ocean.90x40x15/ back to default 3-level checkpointing
1850    o Modifications to enable scripted COMMON to MODULE conversion
1851      * verification/OpenAD/code/ has necessary scripts and description;
1852      * converts, compiles and runs successfully;
1853    
1854    checkpoint57p_post
1855    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1856    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1857      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1858    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1859    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1860      (was already the case for dissipation with mom_vecinv,
1861       and also the case for grad.PhiHyd when staggered-timeStep)
1862      This will allow to put dissipation out-off the AB time-stepping.
1863     Unfortunately, affects truncation error. Update output of exp. that "fails"
1864      (cg2d matching number) and leave the others for later: front_relax(10),
1865      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1866      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1867    
1868    checkpoint57o_post
1869    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1870      (2) its ready to be documented during the 20050801 DocFest
1871    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1872      for ideal_2D_oce and lab_sea on linux_ia32_g77
1873    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1874      in global1x1_tot/code_seaice_adj to access indices 32, 33
1875      (worth another tag)
1876    
1877    checkpoint57n_post
1878    o adding precip control xx_precip 32
1879    o adding swflux control xx_swflux 33
1880    o Replacing 10 forcing penalty cost routines by 1 generic.
1881    o Implementing partitioning in time-mean and variable adjustment
1882      for atmos. state.
1883    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1884    o in natl_box_adjoint:
1885      * updated exp 1 to 10
1886        (but does not have time-mean vs. variable split results yet)
1887    o updated global1x1/*_seaice_adj/
1888      to incorporate latest changes
1889    o enable useSingleCpuIO for mdsio vector routines
1890      (applies in particular to tapelev I/O)
1891    o removed inefficient K-loop in all active_file*control*.F
1892    
1893    checkpoint57m_post
1894    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1895      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1896    o pkg/exch2: filling of face-corner halo regions is optional
1897      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1898    
1899    checkpoint57l_post
1900     tag before updating tutorials (pre-release-2)
1901    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1902       for output and interpolation of input fields onto model grid)
1903    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1904       Affects results of exp. rotating_tank ; update output.txt.
1905    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1906          and taking the square quantity and/or using a fraction-weight field.
1907    o fix aim_diagnostics_init.F mate numbers.
1908    o add mnc output capability to diagnostics/diagstat and update
1909      our cvsignore files for the ACSII output generated
1910    
1911    checkpoint57k_post
1912    o lab_sea now uses diagnostics package and provides a suite of
1913      new EXF diagnostics output.
1914    
1915    checkpoint57j_post
1916    o exf
1917      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1918        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1919        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1920      * extended diagnostics output
1921        - now includes all EXF variables
1922        - hs, hl moved to common block
1923        - separate S/R for diagnostics, called after ctrl vector is added
1924        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1925        - EXFqnet contains true Qnet (i.e. includes qsw)
1926      * updated verif. lab_sea, global_with_exf
1927      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1928        to ensure that diagnostics sees a true EXFqnet
1929    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1930    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1931      several times with different frequencies.
1932    o mnc-ify the thsice package as requested by Daniel Enderton
1933      - the monitor--MNC output needs work
1934      - many attributes need to be added (most are currently blank)
1935    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1936      - many attributes need to be added (most are currently blank)
1937    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1938    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1939    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1940      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1941         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1942    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1943     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1944    
1945    checkpoint57i_post
1946    o Diagnostics package was changed: diagnostic allocation is now deactivated
1947      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1948    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1949      add 1rst Order upwind vertical Shear.
1950    o add a quick fix for A/B checkpointing in OFFLINE mode
1951    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1952      end-run around the C/Fortran linking horror in eesup/src/timers.F
1953    o added pkg/runclock: allows user to terminate run based on wall clock
1954    o added non-hydrostatic scaling parameter: nh_am2
1955    o pkg/my82: futile attempt to make results compiler-independent by adding
1956      some "_d 0", etc. no effect.
1957    o for mnc output, fill the 'T' coordinate var with myTime and create a
1958      separate 'iter' variable for iteration count
1959    o pkg/diagnostics:
1960      add new capability: output of Global/Regional & per-level statistics ;
1961      tested against monitor output (including land & thSIce) on various exp.
1962    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1963    
1964    checkpoint57h_done
1965      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1966      data.diagnostics, data.gchem, data.ptracers) is done.
1967    
1968    o pkg/diagnostics: prepare for Global/Regional statistics.
1969      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1970    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1971      and rename it: DIFFERENT_MULTIPLE
1972    
1973    checkpoint57h_post
1974    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1975    o pkg/diagnostics: change output frequency, now in seconds (instead
1976      of Nb of iterations). This requires to change data.diagnostics.
1977    checkpoint57h_pre
1978    
1979    o in mnc, let the user create the output dir if both mnc_outdir_date
1980      and mnc_outdir_num are false
1981    o add fflags() to pkg/diagnostics which allows one to specify, on a
1982      per-file basis, the file precision [default behavior is unchanged]
1983    o added diagnostics to pkg/kpp, including computation of mixed layer
1984      depth based on a temperature/density criterion
1985    o updated verification/natl_box to test the new pkg/kpp diagnostics
1986    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1987    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1988    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1989      not mnc -- this mistake was found by JMC and is now corrected
1990    
1991    checkpoint57g_post
1992    o add Adams-Bashforth 3rd Order time stepping:
1993      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1994      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1995    checkpoint57g_pre
1996    
1997    o make lambda[Theta,Salt]ClimRelax spatially varying
1998      (default remains spatially uniform constant based on tau)
1999    o added new control variables
2000      * init. uVel, vVel, etanN
2001      * lambda[Theta,Salt]ClimRelax
2002    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2003      (suggested by G. Forget)
2004    
2005    checkpoint57f_post
2006    o add parameter "baseTime" = model base time = time at iteration zero
2007      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2008      account for baseTime shift
2009    o move Coriolis arrays from PARAMS.h to GRID.h
2010    checkpoint57f_pre
2011    
2012    o mnc-ifying the seaice package
2013    o introduced an alternative length scale calculation for use in the limiting
2014      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2015    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2016    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2017      as well as grad(vort3).  Made it compatible with both approximate form
2018      for the cubed sphere and full form of these gradients.  Added flag
2019      useFullLeith to select between approximate and full form.  
2020    o add "d0" in getcon.F to reduce differences between compilers/platforms
2021      update output.txt of exp. fizhi-gridalt-hs
2022    o change port_rand funtion to allow to set the seed.
2023    o fix obscure MNC bug involving conversion between reals and integers
2024      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2025        new version is now more standards-compliant
2026    o adjoint-related modifications
2027      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2028      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2029      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2030    
2031    checkpoint57e_post
2032    o Adding eddy stress controls a la Ferreira et al.
2033    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2034    
2035    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2036      update output.txt of exp. fizhi-gridalt-hs
2037    o add more "Z" dimensions and associated coordinate vars to MNC
2038    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2039    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2040      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2041      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2042      months and years.  Requires pkg/cal.
2043    o diagnostics: add pickup functionality
2044      - off by default for backwards compatibility
2045      - current version only uses MDSIO -- MNC will be added
2046    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2047    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2048    
2049    checkpoint57d_post
2050    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2051    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2052      output from the diagnostics package
2053    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2054    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2055      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2056    o add coordinate variables to the MNC output from the diagnostics package
2057    o change MNC-flags default value: true when useMNC=TRUE
2058    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2059      the ability (off by default) to read the grid information using MNC
2060    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2061    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2062    o do snap-shot diagnostics at the middle of the time-interval (instead of
2063      at the end).
2064    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2065      new test for AIM with thSIce + slab-ocean
2066    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2067    o move state variable diagnostics to the beginning of the time step ;
2068      (note: still needs some work specially for snap-shot diagnostics)
2069      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2070    
2071    checkpoint57c_post
2072    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2073    o generate new output.txt files on faulks with g77 & the new -ieee option
2074    checkpoint57c_pre
2075    
2076    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2077      update output.txt of exp. global_ocean.90x40x15
2078    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2079      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2080    o add saltFlux(+File) forcing capability with periodicExternalForcing
2081    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2082    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2083    o improvements for the MNC output from DIAGNOSTICS:
2084      - correct handling of the unlimitied dimension
2085      - all dims now have associated coordinate variables
2086      - variables located at U, V, and Corner ("Z") points are now written
2087        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2088        *all* data points are output
2089    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2090    o added pkg/seaice/seaice_monitor.F
2091    o mdsio_readfield.F can now read files visible only to master MPI process.
2092    o pkg/seaice: some test code for ice-modified ocean stress
2093    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2094      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2095      spurious negative numbers for precipitation and humidity.  Will cause
2096      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2097    o pkg/ctrl/
2098      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2099        May be enabled via doPackDiag
2100      *  introduce z-scaling of
2101         + gradient (doZscalePack) and
2102         + control (doZscaleUnpack)
2103    o pkg/mdsio/
2104      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2105      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2106    
2107    checkpoint57b_post
2108    o simplify options in diagnostics_fill arguments (remove weird combinations)
2109    o fix MNC coordinate variables so that they now contain per-face index
2110      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2111      general, EXCH2 grids are only aligned to a "local" coordinate system
2112    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2113    o Implement instantaneous output within pkg diagnostics:
2114      setting a negative frequency in data.diagnostics produces
2115     "snap-shot" output (as opposed to time-average if freq > 0)
2116    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2117      NOTE: change ptracer diagnostics name: use 2 characters to work with
2118            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2119    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2120      becomes the coordinate variable for the 'T' dimension
2121    o add CF-style coordinate variables to MNC
2122      - just a first cut:  numbers are meaningless on the cubesphere and
2123        missing along the T axis but otherwise it works!
2124    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2125    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2126    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2127      this is based directly on what the model compute, so that the content of
2128      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2129    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2130    o clean up build options files for SunOS, in particular
2131      - remove -traditional from xmakedepend
2132      - change -xarch=v9 to -xarch=native for f77
2133      - restore use of make (not gmake)
2134      - add CC=gcc if using g77
2135    o changes per discussion of AM, JMC, & EH3 today:
2136      - move redundant "grid" variables out of "state" -- in preparation of
2137        creating proper CF-style coordinate variables and in recognition
2138        that any/all grid variables can be easily copied (eg. w/NCO) from
2139        the grid files into any of the other NetCDF files
2140      - *always* output grid variables with MDSIO (this will eventually be
2141        changed)
2142      - output MNC grid file if useMNC is true
2143    o every instance of _END_MASTER() has been found and replaced with
2144      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2145      preprocessors
2146    o re-arrange diagnostics pkg initialisation:
2147     - allow each package to extend the available diagnostics list
2148     - add some checking and fix small problems (multi-threaded, ...)
2149     - new S/R diagnostics_fill (replace fill_diagnostics):
2150       look through the short list of active diag. (instead of the long list)
2151       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2152    
2153    checkpoint57a_post
2154    o this set of changes restores TAMC compatibility
2155      tested for global_ocean.90x40x15 adjoint on trough
2156      (what a pain)
2157    
2158    checkpoint57a_pre
2159    o some modifs in tools/build_options for sunos
2160    o call ctrl_pack for ctrl at end for optimcycle=0
2161    
2162    checkpoint57
2163    o add horizontal bi-harmonic viscosity for vertical velocity
2164      - new parameter viscA4W (defaults to viscA4)
2165      - affects only non-hydrostatic code
2166      - to be done: no-slip lateral boundary conditions
2167    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2168    o implement Implicit Vertical advection for pTracers
2169    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2170      (implemented also for implicit vertical diffusion & advection)
2171    o OBCS: extend application of tracer open boundary conditions
2172      to a strip beyond the boundary of width Olx/Oly
2173    o add call monitor to TAF set of required calls (flow directives)
2174      and include in natl_box_adjoint
2175    o untangle a few ifdefs related to cost, ctrl, autodiff
2176      untangel a few ALLOW_ECCO_OPTIMIZATION
2177    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2178      (theta2, salt2 in ecco_cost_weights)
2179    
2180    checkpoint56c_post
2181    o OBCS as control variables
2182      - update ctrl_ad_diff.list, obcs_ad_diff.list
2183      - remove balance of obcs controls from default
2184      - fix index bug nobcs in ctrl_init
2185      - fix dummy fields filen in ctrl_pack
2186      - add dummy weights for obcs
2187    o lsopt: comment out fort.94 output
2188    o optim:
2189      - remove unnecessary header files
2190      - adjusted namelists
2191      - add xerbla.F to Makefile
2192    o exf:
2193      - multiple modifications of exf_check_range
2194      - unit change in exf_init_runoff from [m/year] to [m/s]
2195    o mdsio:
2196      - i/o-vector change debugLevel from debLevA to debLevB
2197    
2198    checkpoint56b_post
2199    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2200      is called from DO_THE_MODEL_IO
2201      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2202      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2203      - clean up PTRACERS_WRITE_TIMEAVE a little
2204    o add another verification experiment that tests both the cfc-pkg and
2205      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2206      reactive tendencies treated inline with regular timestepping
2207    o testreport previously did a lousy job of comparing small numbers, so
2208      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2209      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2210      testreport.
2211    o ptracers_monitor: bug fix for MPI
2212    
2213    checkpoint56a_post
2214    o GCHEM: finish reorganizating the package
2215      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2216        (introduces another 3D-array for each passive tracer, but only if
2217        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2218        gchemTendency is not needed because the timestep is done separately)
2219      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2220      - GCHEM is now---more or less cleanly---separate from PTRACERS
2221      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2222        so clear to me how that should be done in a general way.
2223    o CFC: improve formatting of output in CFC_ATMOS
2224    o PTRACERS:
2225      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2226        that ALL experiments with ptracers enable can be checked. This makes
2227        GCHEM_MONITOR obsolete.
2228      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2229        monitorFreq
2230      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2231    o add PTRACERS (PTR0[1-5]) to testreport output
2232    o exf_check_range:
2233      * default changed to .TRUE.
2234      * will check values for niter0 if debLevA, every timestep if debLevB
2235      * STOP in exf_check_range if 'out of range'
2236      * range chosen generous to allow for potential extema
2237      TBD: a version with stricter range
2238           permitted range would be runtime parameters
2239  o GMredi:  o GMredi:
2240    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2241    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2244  o GCHEM:
2244    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2245      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2246    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2247      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2248        this flag is now only visible within GCHEM-pkg routines.
2249      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2250        be replaced by a 3D array that is computed before thermodynamics; for
2251        this, the tracer ID iTracer had to be included into the parameter list
2252        of ptracers_forcing
2253      - set up forward_step to call gchem_forcing, that will replace
2254        gchem_forcing_int in ptracers_forcing
2255      - cleaning up
2256  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2257    
2258  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2471  o add two new packages
2471    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2472    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2473      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2474      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2475  o add offline package  o add offline package
2476  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2477    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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