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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1089 by jmc, Tue Apr 21 16:48:31 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 move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
8      to reduce length of 1.D array print in STDOUT.
9    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
10      + use 48 tiles (16x8): this will allow to test "blank tiles".
11    o start to test MPI + multi-threaded (change testreport to skip tests
12      where number of tiles do not match).
13    o genmake2: add option "-omp" to turn on Open-MP ;
14      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
15    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
16      and keep the original tile numbering. Note: compatible with old
17      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
18    
19    checkpoint61l
20    o Overlaps had been forgotten in calculating ijk keys : fixed
21    o fix cyrus makedepend for gcc 4.4
22    o experiment fizhi-cs-aqualev20:
23      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
24      and generate new output. Note: new output is much closer to the old
25      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
26      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
27    o pkg/fizhi:
28     - change to avoid indices going deliberately over array-bounds
29     - remove unnecessary MPI stuff
30     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
31     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
32       does not go over array-bounds and therefore returns reliable output.
33     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
34       this S/R has 4 output arguments, which are used inside "get_alarm";
35       when it is called with the same variable "ndum" in place of several
36       output arguments, this produces weird side effect inside "get_alarm"
37      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
38       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
39       address) and produces error.
40    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
41    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
42       update lab_sea.lsr & lab_sea.salt_plume results
43    o pkg/seaice:
44      Major overhaul of the LSOR solver: change discretization from original
45      finite differences to finite volume. The old routine is still in the
46      file seaice_lsr.F and can be turned on with the CPP-flag
47      SEAICE_OLD_AND_BAD_DISCRETIZATION
48      Along with this change, the discretization of the strain rates is changed.
49      The same flag turns on the old discretization in seaice_calc_strainrates.F
50      All verification experiments with seaice are affected (except for
51      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
52      results by setting the above flag.
53      Further changes involve changes in defaults:
54      - ALLOW_FLOODING is defined and turned on by default
55      - SEAICEadvSnow = .true. is now the default
56      - SEAICEadvSalt = .true. is now the default
57      - SEAICEadvAge  = .true. is now the default
58      - SEAICE_clipVelocities  = .false. is now the default
59                                         (as per J. Zhang's recommendation)
60      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
61        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
62      - seaice_growth: replace computation of UG by a simple copy from wspeed
63    
64    checkpoint61k
65    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
66      seaice_lsr: fixed a few metric terms,
67                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
68                  add more debugging diagnostics
69      seaice_evp: removed superfluous many metric terms of FV discretization
70                  of stress divergence
71                  affects lab_sea, lab_sea.hb87
72      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
73                  of stress divergence for non-evp solver
74                  (this part is not tested anywhere)
75      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
76                  they were effectively only half slip
77                  affects lab_sea.hb87
78      updated all relevant verification experiments (except lab_sea//output_adm.txt
79        which was left over, but fails at level 7 & 6)
80    
81    checkpoint61j
82    o pkg/seaice: turn a few hard wired parameters into run time parameters
83    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
84      time in seconds as promised by the usints in seaice_monitor and exf_monitor
85    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
86      that are not cubed-sphere grids
87    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
88    o pkg/ctrl:
89      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
90    o non-hydrostatic (calc_gw.F):
91      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
92      update output of exp. global_ocean.cs32x15.viscA4
93    o remove backward compatibility for thetaMin,phiMin
94      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
95    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
96      interpolated wind field not only for curvilineargrid=.true., but also
97      for a rotated grid (rotateGrid=.true.)
98    o pkg/exf: add capability to bypass interpolation for runoff
99      by setting yet another CPP-flag
100    o eesupp/src, B-grid exchange:
101      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
102    o autodiff
103      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
104      allows to switch to single-prec common blocks;
105      corresponding switch occurs in tamc.h, integer isbyte
106      TAF store directivs "byte" and "kind" seem equivalent;
107      Most tamc.h have been updated correspondingly.
108    
109    checkpoint61i
110    o autodiff:
111      fix autodiff_sore/_restore indices for obcs
112      (spotted by I. Hoteit, M. Mazloff)
113    o pkg/autodiff, pkg/ctrl:
114      Add flag to reduce all tapelev I/O to single-prec.
115      In data.ctrl set
116        doSinglePrecTapelev = .TRUE.
117    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
118      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
119    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
120      real fresh water flux (not yet)
121    o pkg/mdsio & rw:
122     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
123     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
124    o pkg/flt:
125     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
126       init_fixed & ini_varia.
127     - clean-up & simplify linear interpolation S/R:
128       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
129     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
130     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
131     - add vert. coordinate & horiz. indices to output files.
132     - change vertical position in initial condition, from index to depth [m].
133     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
134       (easier to get to a curvilinear grid) ; delX,delY no longer used.
135    o pkg/ggl90: a few modifications:
136     - fix bottom boundary condition, and interpolation of KappaE
137       near top and bottom
138     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
139     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
140     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
141    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
142      (maintain temporary backward compatibility, until next checkpoint)
143    
144    checkpoint61h
145    o pkg/diagnostics with "periodic averaging diagnostics":
146      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
147    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
148    o pkg/obcs: fix loop ranges for balancing code
149    o pkg/flt:
150     - improve criteria for finding which tile owns a float.
151     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
152    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
153      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
154      with ocean biogeo)
155    o pkg/flt:
156     - do some cleaning and fix the restart ;
157     - add output.txt in flt_example/results to get this pkg tested.
158    o genmake2: add an EXTENDED_SRC option and flag.
159       for now, cannot be turned on on command line (only through genmake_local)
160    o pkg/mdsio: read/write vector:
161     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
162     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
163       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
164     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
165      (drop to 4 digits matching for grad). But this test does not look very
166      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
167    
168    checkpoint61g
169    o pkg/flt:
170      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
171       + make OPTIONS file more standard.
172      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
173      - fix _BYTESWAPIO CPP-Flag
174      - standard reading of file-parameter "data.flt"
175      - fix argument list of S/R FLT_RESTART
176      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
177    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
178    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
179      a still unfixed compiler/optimization bug
180    
181    checkpoint61f
182    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
183      update results of global_ocean.cs32x15.icedyn test.
184    o move getcon.F from model/src to pkg/fizhi.
185    o pkg/exf: add parameter for extrapolation of temp up to the surface
186       and option to prevent negative evap (in bulk_largeyeager04 only).
187    o Prather Advection scheme: fix tracer conservation for divergent flow
188      (e.g., when using NonLin Free-Surface).
189    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
190    o gmredi (Visbeck-variable-K):
191     - add more parameters to Visbeck-variable-K.
192     - use a 5 points average for dSigmaR in Visbeck-K calculation
193       (more "homogenous": same stencil and same weights as in dSigmaH)
194     - update output of ideal_2D_oce experiment.
195    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
196      (#undef REAL4_IS_SLOW)
197     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
198       coordinate variable
199     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
200       (surface forcing fields), removes some of the functionality
201     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
202     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
203       probably not all: copy _RS surface flux fields to RL field before
204       calling DIAGNOSTICS_FILL
205     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
206       real*4 (CALL EXCH_*_RS) versions.
207     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
208       (generate new output).
209    
210    checkpoint61e
211    o gmredi (Visbeck-variable-K):
212      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
213      - change computation of Visbeck-K where Slope > Smax :        
214        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
215        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
216    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
217      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
218    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
219    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
220      does not become too large (to avoid precision problems in implicit-diffusion
221      solver); update ideal_2D_oce output.
222    o pkg ggl90:
223      - in ggl90_cal.F: compute only one set of visc/diff, used to
224        step forward TKE/T/S/momentum
225      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
226        have Prandlt =1)
227    o gmredi (fm07):
228      - add lower limit on Transition layer thickness + lower limit on 1/lambda
229      - allow to set few more params from data.gmredi
230    o pkg ggl90:
231          - add missing sqrt(2) factor in computation of mixing length
232            scale in ggl90_calc.F
233            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
234    
235    checkpoint61d
236    o adjoint modifs
237      - adapt to new field rhoInSitu
238      - allow to revert from StoreDynVars2D, StoreDynVars3D
239        to individual fields
240        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
241    o store 3-D (in-situ) density in commom block (DYNVARS.h)
242     - save 1 rho computation.
243     - no longer modify T & S inland when using down_slope pkg.
244    o gad_som : allow to switch to SOM advection for T & S without corresponding
245      pickup files (using new S/R: MDS_CHECK4FILE).
246    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
247      (for useSingleCpuIO to work in multi-threaded)
248    o pkg/shelfice:
249     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
250       with SHELFICEtopoFile in data.shelfice
251     - move code for reading ice shelf topography and modifying hFacC into separate
252       subroutines of the shelfice package
253     - separate initialisation of "fixed" and "variable" variables
254     - kTopC is not (yet) replaced by kSurfC, although this is possible
255    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
256    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
257      and rename:
258      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
259      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
260    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
261    
262    checkpoint61c
263    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
264      to add mass source/sink of fluid in the interior (3-D generalisation
265      of oceanic real-fresh water flux).
266    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
267    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
268    o new pkg: down_slope
269      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
270      - presently, modify T & S inland (dwnslp_calc_rho.F).
271        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
272      - implementation for ocean in P-coords not tested.
273      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
274    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
275      (to facilitate conversion of oceanic pkg to p-coordinate).
276    o change FIND_RHO to FIND_RHO_2D :
277      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
278    o new pkg: cheapaml
279    
280    checkpoint61b
281    o exch2:
282      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
283      - no longer depend on the order sequence (N,S,E,W).
284      - 3rd exchange no longer needed (tested with 24 tiles).
285      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
286      - exch_UV_A-grid readily available (but not yet tested).
287      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
288      (both are no longer needed) in exch_uv: no effect in forward run; but
289       get truncation error differences with adjoint exch.
290    o exch2:
291     - change index-bounds storage (moved from target to local tile,
292       more intuitive this way) ; rename/remove some variables.
293     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
294    
295    checkpoint61a
296    o exch2/matlab-topology-generator:
297      fix bug in index bounds for N-S internal exchange (hard to tell if this
298      had any effect on the solution).
299    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
300      is exceeded
301    o testreport: modify syntax of awk, so that it works also with
302      awk, and not only with nawk and gawk
303    
304    checkpoint61
305    o autodiff
306      Change default for TAF usage by removing argument '-nonew_arg'
307      This changes TAF subroutine argument list (ordering of active var.)
308      Omission of this flag leads to incompatibility w.r.t. TAMC
309      To restore TAMC-compatibility, need following modifs:
310      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
311      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
312      Tested TAF version is 1.9.22
313      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
314    
315    checkpoint60
316    --->>> This is the last checkpoint for which generating the adjoint
317    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
318    --->>> by default.
319    --->>> Future checkpoints will ommit this flag by default.
320    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
321    o pkg/grdchk: Add gradient check to etan0 perturbations.
322    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
323    o pkg/autodiff: more flexibility in zeroadj.
324      model/src: modifying do_oceanic_phys.F accordingly.
325    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
326    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
327      special setup of gmredi for which the adjoint is stable
328      enough for parameter optimization.
329    o bridging the gap between eddy stress and GM.
330      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
331          along with a change in CPP option (now ALLOW_EDDYPSI).
332      -> when using GM w/ GM_AdvForm:
333          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
334          is applied either in the tracer Eq. or in momentum Eq.
335          depending on data.gmredi (intro. GM_InMomAsStress).
336      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
337      The key modifications are in model/src/taueddy_external_forcing.F
338      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
339    
340    checkpoint59r
341    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
342      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
343      fix option to read coriolis(@ cell-corner) from files with CS-grid.
344    o pkg/mnc: add some attributes to standard 1D-coordinate variables
345    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
346      mass points, when using mnc for output
347      - add runtime parameter (missing_value, missing_value_int) to override
348        default (which is the value of getcon('UNDEF'))
349    o pkg/mnc: prepare mnc for the actual use of missing values with the
350      diagnostics package: small fix in mnc_cw_readwrite.template and more
351      initialisation of never used fields
352      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
353      versions
354    o pkg/thsice/thsice_ini_vars.F added default initial values so that
355      thermodynamics sea ice solver does not blow up when some initial fields
356      are missing.
357    o move from external_forcing_surf.F to ini_forcing.F
358      the p-coord. hack consisting in using pLoad to set phi0surf ;
359      update output of tutorial_global_oce_in_p (affected @ truncation level).
360    o Freshen up a bit hs94.1x64x5, notably:
361      remove rotationPeriod and tRef=5*0. (adjoint only), and add
362      exactConserv=.TRUE.
363    o pkg/generic_advdiff:
364      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
365      applies to files where Temperature & Salinity 2nd Order moments are used.
366    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
367      this uses a dynamically allocated internal state data structure
368      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
369      and requires a fortran 90 compiler
370    
371    checkpoint59q
372    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
373       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
374    o Refresh tutorial_global_oce_biogeo, notably:
375      - change bathymetry (put back seamounts in ACC, use hFacs)
376      - change EOS (POLY3 --> JMD95Z)
377      - use Bryan-Lewis vertical diffusivity
378      - use multidimensional advection
379      - remove old virtual virtual in dic pkg, now done through ptracer pkg
380      - change a couple of parameters in dic pkg
381    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
382    o pkg/obcs: change default to OBCSfixTopo = .true.,
383      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
384      - replace "debugMode" with "debugLevel .GE. debLevB"
385    o implementation of TAF directives for gchem,cfc,dic
386    o remove "exp5" (replaced by tutorial_deep_convection).
387    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
388      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
389      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
390      --> changes results in exp4, seaice_obcs
391    o tutorial_deep_convection :
392      update the set-up and increase resolution and domain size ; start
393      from pseudo initial conditions = output at t=120mn in order to see
394      something happening when running testreport.
395    o pkg/seaice: add os7mp as an advection scheme
396                  add check for advection schemes
397                  add a flag for restoring T and S underneath sea ice
398    o pkg/my82: add netcdf-support and diagnostics
399    o thsice pkg:
400      - Now hsMax limits snow height by turning it into ice following
401        flooding scheme (and now conserving energy)
402      - Slight rewriting of the formula in thsice_calc_thick.F
403      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
404      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
405    
406    checkpoint59p
407    o gchem / dic / cfc :
408      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
409      - add new parameter files: "data.dic" & "data.cfc" ;
410      - various re-arrangement in initialisation & header file ;
411      - fix tutorial_global_oce_biogeo for multi-threaded test.
412    o pkg/dic: test for "pickup_dic" file when restarting ;
413      if no pickup-file, can restart with a re-initialised pH (same as it did
414      before) providing pickupStrictlyMatch is set to False.
415    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
416      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
417    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
418      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
419    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
420     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
421       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
422    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
423       scheme to use for vorticty-term ;
424     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
425       (with default selectVortScheme, return to original discretisation)
426     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
427    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
428    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
429      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
430      also fix diagnostics VISCAHW & VISCA4W.
431    
432    checkpoint59o
433    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
434    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
435      move a few statemens out the main loop into separate loops
436    o pkg/shelfice:
437      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
438        (kg/m^2/s), does not break tests, because in verification/isomip,
439        rhoConstFresh=rhoConst (by accident)
440      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
441      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
442        new file model/src/seawater.F, so that they are available for all pkgs.
443      - convert potential temperature into in-situ temperature. This changes the
444        isomip tests => update tests
445    o add a flag writePickupAtEnd (default=true) to be able to suppress
446      writing a pickup at the last timestep
447    o tools/mpack-1.6 :
448      - disable automake (not working) and autoconf (not needed).
449      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
450        also cleaner with much less compilation warnings.
451    o pkg/profiles:
452      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
453      (for "less than 32 characters name" compiler requirement)
454    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
455      conditions that have a different sampling frequency than S/T/U/V obcs
456    o pkg/diagnostics (stats-diags):
457      - fix global Min/Max in case 1 processor get only empty tiles
458    o genmake2: replace (4 times)
459         make genmake_tc_1.o >> genmake_warnings 2>&1
460      with
461         COMM="$CC $CFLAGS -c genmake_tc_1.c"
462         echo $COMM >> genmake_warnings
463         $COMM >> genmake_warnings 2>&1
464      to make genmake2 always see the value of CC as specified in the optfile.
465    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
466      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
467      - modify verification advect_cs test to test SOM-advection on CS-grid.
468    o pkg/ctrl:
469      - Rewrite of ctrl_map_ini_ecco.F,
470        introducing a generic routine (ctrl_map_ini_gen.F).
471      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
472    
473    checkpoint59n
474    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
475      number in dedicate array "hdiag":
476      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
477        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
478      - many small changes (integer format) for large number of diagnostics
479      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
480        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
481    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
482      usingSphericalGrid, this allows to define the rotated grid coordinates
483      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
484      geographical coordinates according to the inverse of the rotation defined
485      by the Euler angles, so that Coriolis parameter and online-interpolation by
486      exf works with the geographical coordinates on XC/YC/XG/YG.
487      Naturally, this feature does not work with all packages, so some
488      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
489      profiles), because there the coordinates are assumed to be regular
490      spherical grid coordinates.
491    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
492      - introduce isopycnal diffusion coefficient control.
493    o tools/adjoint_options:
494      - additional control vector components.
495    o pkg/mnc: have mnc create marginally meaning full coordinate variables
496      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
497    o pkg/mypackage:
498      - add example of read/write pickup for state-var ;
499      - add entry points to the main code for state-vars diags & write-pickup.
500    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
501      transitions for useExfYearlyFields
502      - add new subroutine that determines the file to read from for
503        use*YearlyFields = .TRUE. and .FALSE.
504      - add a verification experiment to global_with_exf that tests
505        useExfYearlyFields with USE_EXF_INTERPOLATION defined
506    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
507      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
508      subroutines (which could be generated from a template, because they are
509      almost identical), for now they are included in obcs_prescribe_read.F for
510      simplicity
511    o pkg/exf:
512      - add a little more diagnostic to exf_interp_read (in analogy to
513        mds_read_field, can be turned off with debugLevel < debugLevA=1)
514      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
515        ugly but fast by unrolling short inner loops, inserting a unroll=8
516        directive in routine lagran, and splitting a loop and making do while the
517        outermost loop (the latter requires the intoduction of index arrays)
518    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
519    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
520      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
521    o verification/seaice_obcs: updated for restart test and latest options
522    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
523      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
524      for now this is only available for the C-grid code and also within
525      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
526    
527    checkpoint59m
528    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
529      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
530    o gad_som : fix flux output (& diagnostics) to have same units as other  
531      advection scheme fluxes (was previously multiplied by deltaT).  
532    o added verification/seaice_obcs both to test seaice open boundaries
533      and to provide an example matlab scrpt for generating them
534    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
535    o pkg/salt_plume: clean up salt_plume_frac.F to
536      remove redundancy in PlumeMethod 1 and 4
537    o pkg/kpp: added saltplume diagnostics
538    o pkg/obcs and pkg/seaice:
539      - do not set uice and vice to zero when OB*icefile are unspecified
540      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
541      - moved seaice tracer obcs after call to seaice_growth
542    o pkg/salt_plume: added various options for salt plume depth
543      criterion and for vertical distribution of the salt
544    
545    checkpoint59l
546    o pkg/ptracers: new version of ptracers pickup:
547      read meta file and write only fields which are needed to restart.
548      ( same logic as main pickup file ; also using pickupStrictlyMatch )
549    o pkg/seaice:
550      - add timescale for melting due to warm mixed layer as a means of
551        setting SEAICE_availHeatFrac more conveniently
552      - add a CPP-flag/runtime parameter check for flooding algorithm
553      - reformulated availHeat in seaice_growth.F to be independent of AREA
554    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
555      unit changes
556    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
557    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
558      SX vector computer.
559    o pkg/seaice:
560      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
561        seaice forcing fields can now be read only through pkg/exf
562      - removed some unused halos
563    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
564    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
565      or U/VICE from U/VWIND before computing U/VSTRESS
566    
567    checkpoint59k
568    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
569      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
570    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
571      all experiments pass when compile with un-initialised var. checking option.
572    o added pkg/salt_plume
573    o script to test restart (for now, in MITgcm_contrib/jmc_script)
574    o pkg/seaice: new read/write pickup version.
575      read meta file and write only fields which are needed to restart.
576      ( same logic as main pickup file ; also using pickupStrictlyMatch )
577    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
578    o lab_sea.hb87: modify the domain & update output.hb87.txt :
579      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
580      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
581      process. Fixed here by closing the domain at the Northern boundary.
582    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
583    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
584      a set of consecutive levels in/from a 3-D array.
585    o pkg/ptracers:
586      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
587      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
588    
589    checkpoint59j
590    o in pkgs: dic, obcs, offline, rbcs:
591      standard way to compute coeff. for time interpolation between 2 time reccords
592      which retains full precision (& make results less dependent on compiler).
593      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
594    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
595      packages instead of reading ice cover and wind speed separately
596    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
597     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
598      to allow to compile customized code before the update)
599    o cleaning-up:
600      - fix CPP instruction syntax in pkg/obcs
601      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
602        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
603      - fix some threads issue in IO parts.
604    o pkg/dic:
605      - add tons of "_d 0" (--> much better testreports !)
606       and then update outputs of tutorial_global_oce_biogeo
607    o pkg/mom_fluxform:
608      add a special version of momentum advection intended to conserve momentum
609      next to a bathymetry step or a coastline edge. (default = off = #undef)
610    o new read/write pickup version:
611      - for now, only implemented for main (mdsio) pickup file.
612      - write out only what is needed to restart; merge pickup_nh , pickup_ph
613        and main pickup together.
614      - read meta file; read only what is needed to restart; stop if a field
615        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
616        if it make sense (even if the restart is not perfect).
617      - if no meta file, assume that pickup to read corresponds exactly to
618        a pickup that would currently be written.
619      - read pickup written in the old format (until checkpoint59i) if it
620        recognizes an old meta file (no field-list).
621      - add a meta file in exp. which starts from a pickup: 2 cases:
622        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
623         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
624        b) a meta file describing the content of the associated pickup file
625         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
626    o pkg/mdsio & pkg/rw:
627      - new routine to read a meta file ; new set of routine to read
628        Multiple-fields file (with meta file).
629    o added open boundary conditions capability for seaice
630        HSNOW, HSALT, UICE, and VICE
631    
632    checkpoint59i
633    o adjoint:
634      * fix multiDimAdvection adjoint
635        (partial recomputation problem by TAF for fVerT(:,:,kDown)
636        and comlev1 size definition (maxpass vs. max. number of tracers)
637      * verification/global_ocean.90x45x15 adjoint now tests
638        NLFS and multiDimAdvection using DST3 (=30)
639      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
640    o pkg/kpp: add "_d 0" to real constant (if missing);
641      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
642      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
643    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
644      for internal parameters related to restart process (formerly from PARAMS.h)
645      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
646    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
647      as argument. (only atm2d & obcs write_pickup have not yet been updated)
648    o pkg/monitor:
649      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
650      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
651      - account for deep Atmosphere factor and density factor (anelastic)
652    o added open boundary conditions capability for seaice HEFF and AREA
653    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
654      thermodynamics
655      - requires a little reorganization, which affects the testreport results
656        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
657        so that now the conservative form is tested
658      - add a few comments
659    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
660    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
661    o add new diagnostics to seaice: advective, diffusive fluxes (only for
662      multidim-advection, for scheme 2 they are not filled) and transports,
663      thermodynamic growth rates
664    o change units of EmPmR (inside the code, + within coupling interface)
665      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
666      Affects results @ truncation level (cg2d match) and update output of
667       experiments: lab_sea(6), global_ocean.90x40x15(10),
668      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
669      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
670      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
671      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
672    
673    checkpoint59h
674    o pkg/exf:
675      - improve vectorization by moving if-statement out of loops in
676        exf_mapfields, exf_radiation
677      - exf_bulkformulae.F: introduce 2D fields and vectorize code
678    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
679    o testreport:
680      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
681        monitor & update offline_exf_seaice exp. output.
682      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
683    o pkg/seaice:
684      - bug fix in the evp solver: boundary conditions were affected be
685        masking of zMax/zMin (changes results)
686      - minor bug fix in boundary conditions in seaice_calc_strainrates
687        (changes results for no_slip)
688      - seaice_lsr.F: make interpolation of eta dependent on boundaries
689      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
690      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
691        stress formulation and no-slip boundary conditions
692    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
693      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
694    o pkg/seaice: a first HSALT time stepping equation has been checked in
695    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
696      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
697      without requiring DO-IF statements
698    o pkg/thsice:
699      use continuous power-law function for partition of energy between lateral
700      melting/freezing and thinning/thickening ; old code using step function
701      still available with #undef THSICE_FRACEN_POWERLAW
702      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
703    o testreport: change AD testing : check against results/output_adm.txt
704      using same scripts as for forward test.
705    
706    checkpoint59g
707    o adjoint testing: in preparation for changing testreport:
708      - output format: cost and grad written on separated lines
709      - ad output results in directory "results" (instead of "results_ad")
710    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
711    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
712    o pkg/ecco: allow user defined cost function contributions
713    o testreport:
714      Allow to choose (per experiment) the list of tested output variables
715       and the main variable (used to issue a pass/FAIL ) ;
716      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
717      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
718      Also modify printing of summary:
719       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
720       b) echo the list of tested variables in the individual summary.txt of
721          each experiment.
722    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
723      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
724      (but still depend on the tile decompostion of the domain).
725    o pkg/seaice: change a discretization detail to make the B-grid code
726      "more symmetric". This change is likely to remove all "ridges/leads" that
727      where quasi-aligned with the grid in B-grid solutions. It may also be
728      the solution to the stress coupling issues with the B-grid.
729    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
730      remove .cvsignore from input dir. (since testreport no longer run here).
731    o pkg/thsice:
732     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
733     - fix reshaping of sea-ice just after advection:
734       melt all the ice only if ice-volume is too small.
735     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
736       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
737     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
738    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
739      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
740    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
741      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
742      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
743      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
744      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
745      -> update output.txt
746    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
747     this affects truncation error: -> update output.txt of exp:
748      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
749      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
750    
751    checkpoint59f
752    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
753    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
754      a bounded range (in forward mode)
755    o pkg/ecco, ctrl, autodiff and mom_common:
756     internal parameter controls, completements of implementations
757    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
758    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
759      (not seem any difference in testing results).
760    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
761       at face corners.
762    o pkg/generic_advdiff:
763     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
764      loop range indices for computing vertical advection tendency
765      and do the calculation in the interior only (no overlap) ;
766      for now, only implemented for SOM advection (to save CPU time).
767     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
768    o exch2 adjoint
769      First set of changes:
770      - add exch2 hand-written adjoint templates
771      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
772        This will require cleanup in pkg/autodiff/*.F
773        (changed routines currently kept separate in verif. code/)
774      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
775        that used to hide exch2 or cubed-sphere specific code
776        (commented via 'cph-exch2')
777    o pkg/seaice
778      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
779    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
780       output of global_ocean.cs32x15.thsice .
781    
782    checkpoint59e
783    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
784      for B-grid vector (not yet tested) and C-grid vector (<- only used
785      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
786    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
787      (#ifdef ALLOW_SALT_PLUME)
788    o gather_2d/scatter_2d: removed halo regions
789    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
790      scheme and the corresponding test case (under front_relax dir). For now,
791      only available with Skew-flux form and not yet tested in realistic set-up.
792      adjoint: store directives updated, but gradient checks deteriorated,
793      so maybe GM/Redi adjoint is now broken.
794    o seaice adjoint
795      * add AREA, HEFF, HSNOW as control variable
796        (should not change lab_sea results)
797      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
798    o pkg/seaice:
799      * added computation of saltFlux in seaice_growth;
800        For time being, sea ice salinity is assumed constant
801        contribution of snow flooding to freshening of sea ice is neglected.
802        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
803        defaults to 0.0 in order to maintain backward compatibility.
804        Typical values for SEAICE_salinity are 4 to 10 g/kg.
805      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
806      * added SEAICE_availHeatFrac, which specifies fraction of surface level
807        heat content used to melt or grow ice
808      * commented out cap of HICE: it helps keep ice thinner
809      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
810      * applied OBCS T/S mask to HEFFM sea ice mask
811    
812    checkpoint59d
813    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
814     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
815     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
816    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
817     and change default value of parameter "GM_Small_Number";
818     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
819       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
820       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
821    o pkg/ecco: cost function when applying pkg/smooth to controls
822    o pkg/ctrl: add forcingPrecond run time parameter
823    o pkg/seaice:
824     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
825     - fix bug in metric terms of u-equation in LSR solver (implicit part),
826       changes verification/lab_sea
827     - rearrange implicit part of u-equation in LSR solver to make it easier to
828       read, understand, and debug. This causes changes at the truncation level.
829     - fix (serious) bug in the boundary conditions (sign error in the implicit
830       part) of the LSR solver. Changes all LSR results.
831     - fixed problem with HSNOW initialization to avoid thick snow when AREA
832       is initilized with small values - does not change lab_sea results.
833     - added HsnowFile initialization capability
834    o pkg/smooth: addition to model/src and pkg/ctrl so allow
835     initialization of pkg/smooth and application to control vector
836    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
837    o dependencies: pkg/profiles requires pkg/cal
838    o pkg/profiles:
839     - added option ALLOW_PROFILES_GENERICGRID
840         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
841         that interpolation information (grid points and coefficients) is provided
842         within the netcdf input files.
843         -> sample matlab scripts can be found in MITgcm_contrib/gael
844         that allow you to prepare netcdf input files.
845     - also modified: cleaner include statements, cleaner error print statements,
846       cleaner stops when error, and more tests of the netcdf input files consistency.
847    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
848    o pkg/seaice:
849     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
850       requires a new routine: seaice_diagnostics_fill.F
851     - make sure that seaice does not move if not forced (pressure replacement
852       method, Hibler and Ip, 1995), changes results
853     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
854     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
855       It is turned off by default (=-1.), because it changes the results.
856     - make it possible to read AREA from a file, too.
857    
858    checkpoint59c
859    o add S/R and diagnostics for oceanic mixed-layer depth
860    o move GMRedi call after all vertical mixing schemes (including KPP)
861    o pkg/thsice:
862     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
863      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
864    o pkg/obcs:
865     - bug fix for balance code
866    o pkg/seaice:
867      - allow values of SEAICE_elasticParm > 1
868      - add new parameter SEAICE_evpTauRelax as an alternative
869        to SEAICE_elasticParm
870      - make lsr boundary conditions free slip (by default), changes result
871      - add code for no slip boundary conditions for lsr
872      - set minimum of zeta to zero (and not 4e8) (changes results)
873      - add a cap on AREA after advecting AREA if seaice_growth is not called
874    o change calculation of Visbeck K:
875      - no longer depend on tapering scheme; instead, compute slope (limited
876        by GM_maxSlope). this is equivalent to what was comuted before with
877        clipping or linear tappering.
878      - fix vertical averaging (wrong by 1/2 level)
879      - leave the old version (but will not be maintained) within
880        #ifdef OLD_VISBECK_CALC / #endif
881      - update output of exp. ideal_2D_oce
882    o change error catch in calc_r_star to improve vectorization
883    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
884      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
885    o adjoint:
886      Re-organized adjoint checkpointing according to Matt Mazloff
887      (but with modifs/completions/cleanups)
888      Storing is now bundled into large arrays to optimized I/O
889      (and second step in cleanup of the_main_loop)
890    
891    checkpoint59b
892    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
893      - export/import (between ocean & coupler) fields needed for ocean DIC.
894    o pkg/seaice:
895      - get rid of three more exchanges seaice_calc_viscosities (required
896        different loop boundaries in seaice_lsr and seaice_ocean_stress)
897      - bug fix in seaice_ocean_stress (update of lab_sea required)
898      - reduce loop boundaries to necessary minimum also in seaice_evp
899      - go back to the old way of computing deltaC/Z as the adjoint likes that
900        better
901    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
902      passive tracer to an Age Tracer) + update output.txt
903    o pkg/exf:
904      - implement A-grid / C-grid selection for wind-stress input files.
905      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
906      for now, in exf_bulk_largeyeager04.F only :
907      - change implementation for case where windspeed + 2. components wind-stress
908        are read-in. AND use rhoConstFresh to convert evap.
909    o pkg/seaice:
910      - use correct EXCH_UV for wind-forcing (on A-grid).
911      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
912        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
913    o pkg/exf:
914      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
915      EXF_INTERPOLATION:
916      - merge global_with_exf/code version of exf_interp_read.F
917        to the main code ;
918      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
919        reading the file ; Important: This options needs to be defined to recover
920        previous code.
921        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
922      - no longer loose real*8 precision along the way when using exf_iprec=64.
923    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
924      - change discretisation of evp-solver in order to avoid another exchange
925        (changes lab_sea) and clean up a little
926      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
927        help the adjoint (this also changes the results slightly)
928      - add a few "_d 0" where they had been missing in seaice_evp.F
929      - cleaning up: remove unused seaice_calc_rhs.F
930    o pkg/exf: some cleaning-up:
931      - change various "constants" into runtime parameters
932      - cleaned-up Large&Yeager04 routine which should eventually
933        replace exf_bulkformulae.F (changed names of S/R and CPP)
934        and merged various ALLOW_ATM_WIND options
935     only used with thsice pkg (in thsice_get_exf.F):
936      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
937        which are used when useStabilityFct_overIce=TRUE (= the default)
938      - change default values of ice & snow emissivity and scale downward LW
939        by ice & snow emissivity.
940    o pkg/thsice:
941     fix few little problems, in thsice_calc_thickn.F:
942      - growth vertically (and not laterally) if iceFrac == iceMaskMax
943      - melt only laterally if hIce < hThinIce (as the comments say)
944      and in thsice_extend.F:
945      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
946      - start to form ice as soon as the minimum ice-volume is reachable.
947     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
948      and cpl_aim+ocn
949    o pkg/kpp
950     - move computation of surface related input fields to KPP into a new
951       subroutine kpp_forcing_surf.F
952     - remove wrong (within bi,bj loops) EXCH calls.
953     - little cleaning (add argument myThid in last position, cvs header ...)
954     - for now, fix conservation problem by exchanging KPPviscAz (may not
955       be the best fix)
956    o pkg/seaice
957     - check for inconsistent evp parameter/cpp-flag combination
958     - remove leftover errIO flat for obsolete name list error handling
959    o OpenAD
960     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
961    
962    checkpoint59a
963    o pkg/seaice: some parameter clarifications and a little bit of clean up
964    o pkg/thsice: rename run-time parameters:
965       himin       -> hIceMin
966       himin0      -> hThinIce
967       hihig       -> hThickIce
968       i0          -> i0swFrac
969       transCoef   -> bMeltCoef
970       frac_energy -> fracMelting
971      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
972       with default values (for now) that do not change the results.
973      remove old version of thsice vars advection in pkg/seaice.
974    o in FFIELDS.h:
975      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
976      - make pLoad & sIceLoad always available (but still only used if
977         ATMOSPHERIC_LOADING is #define).
978    o pkg/kpp: replaced _KPP_RL with _RL
979    o bug fixes for vertical diffusivity computations when both KPP and
980        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
981        are no longer updating the vertical diffusivity array
982        (passed as argument) but are (re-) setting those arrays.
983    o pkg/seaice: fix bug in evp solver, while doing that
984      - change (improve?) discretization of stress computations for both
985        cgrid-lsr and evp solver
986      - add a new routine to compute strain rates
987      - the above changes lab_sea results
988      - add no slip conditions for evp solver (off by default), lsr-version
989        may follow
990      - fix exchange for shear at Z-points (does not change lab_sea)
991      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
992        (to force the user to pick a time step since there is not "safe" way
993        of choosing it)
994      - add principal stress diagnostics
995      - rearrange fields for evp a little to avoid having to call a: too many
996        exchanges and b: exchanges for stress trensor components which we do
997        not have.
998      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
999        of evp, complete rewrite for lsr case (latter is does not yet work
1000        in all cases)
1001    o pkg/kpp: add code to have mixing in shelf ice caverns
1002      - add myThid to all kpp routines (long overdue)
1003    
1004    checkpoint59
1005    o pkg/exf:
1006      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1007        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1008      - move exf header files from lower_case.h to UPPER_CASE.h ;
1009        add missing cvs Header & Name
1010      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1011      - add namelist param. selectStressGridPosition, exf_monFreq
1012      - retire many _CLIM routines, and remove data.exf_clim
1013        + params moved to data.exf
1014        + climsst, climsss now handled by exf_set_gen, i.e.
1015          climss?period=0 refers to constant field,
1016          climss?period=-12 to monthly forcing
1017      - split up namelists in data.exf
1018    o pkg/seaice:
1019      - remove seaice_exch and seaice_exch_uv
1020      - remove superfluous exchange of theta
1021      - add myThid to seaice_budget_ocean/ice
1022      - add new interface for atmospheric wind forcing (C-grid only)
1023        + new routine
1024        + two new field (taux, tauy for stress over ice)
1025        + removed one global field (DAIRN) for C-grid case only
1026    o pkg/thsise
1027      - 2nd set of modifs for thsice adjoint in conjunction with exf
1028    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1029    
1030    checkpoint58y_post
1031    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1032      vertical diffusivity, similar to that in MOM4; turned on using
1033      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1034      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1035    o Added capability for 3D specification of background vertical diffusion
1036      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1037      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1038      "data" file that contains the 3D vertical diffusivity coefficients.
1039    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1040      - add code within pkg thsice to advect & diffuse sea-ice fields
1041      similar to (and will replace) what has been added in  seaice_advdiff.F,
1042      but: - conserving Mass, Heat & Salt.
1043           - better when using non-linear advection scheme (not yet fully tested)
1044           - can also be used in atmospheric set-up (for now, only the diffusion).
1045    
1046    checkpoint58x_post
1047    o IO option for global-file compact format:
1048      - add options when generating topology (utils/exch2/matlab-topology-generator)
1049      - add I/O capability (pkg/mdsio).
1050      - adapt utils/matlab/rdmds.m to read this format.
1051      for now long-line format not yet supported by pkg/mdsio (& exch2).
1052    o shelfice: add a few diagnostics
1053    
1054    checkpoint58w_post
1055    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1056      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1057      (and replace horiVertRatio in NH code).
1058      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1059                         and tutorial_plume_on_slope (sensitive to truncation)
1060    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1061      directly to drive seaice model (C-grid only)
1062    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1063     - reintroduce computation of wind from stress,
1064     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1065       mass points to avoid tau = 0
1066     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1067    o rdmnc.m: make it work with "global" files created with gluemnc
1068    o rdmnc.m : some improvements in dealing with singleton dimension
1069      (tested on all testreport mnc output files).
1070    o genmake2: disable pkg/profiles if netcdf test fails.
1071    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1072    o move call to cal_readparms up to make calendar parameters/variable available
1073      to all packages
1074    
1075    checkpoint58v_post
1076    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1077      useDynP_inEos_Zc tested.
1078    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1079    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1080      and portions thereof.  See read_cs.txt for description and examples.
1081    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1082      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1083      following the great-circle arc between those 2 points.
1084    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1085      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1086    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1087     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1088     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1089     - still needs work (not working with some options ; efficiency to improve)
1090       and serious testing.
1091     - use this scheme for temperature & salinity in 2 advection test exp.:
1092       advect_xy & advect_xz, respectively.
1093    
1094    checkpoint58u_post
1095    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1096    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1097    o testreport: add option "-skipdir" to skip some test.
1098    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1099      momentum calculation.
1100    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1101    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1102      remove checkpoint.F and the_correction_step.F (no longer used);
1103      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1104    o add option (linFSConserveTr) to correct for tracer source/sink due to
1105      Linear Free surface
1106    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1107    o pkg/thsice: fix reading mnc-pickups
1108    
1109    checkpoint58t_post
1110    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1111    o pkg/mdsio:
1112     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1113       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1114       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1115     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1116     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1117       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1118     - new S/R (to replace MDSWRITEMETA), which allows to write more
1119       informations (variable names, time ...) to meta files.
1120     - modify rdmds.m to give back the meta file content.
1121    o pkg/diagnostics: change vertical interpolation to be safer, and more
1122       flexible (define p-levels to interpolate to in data.diagnostics);
1123      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1124       diagnostic pointer.
1125    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1126    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1127    o fix multi-category seaice:
1128     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1129       SEAICE_MULTICATEGORY
1130     - fix short wave heat flux
1131    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1132       and allow to use EVP solver. Change forward lab_sea: test both EVP
1133       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1134    o Initial check-in of lab_sea adjoint
1135      (very similar to natl_box_adjoint/code_seaice)
1136      * used C-grid and EVP solver
1137      * used KPP, GM/Redi
1138      * uses inAdExact=.TRUE.
1139      * gradient checks fail for both ADM and TLM
1140        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1141        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1142        issue is related to forward mismatch between g77 an ifort
1143    o pkg/seaice: overhaul of thermodynamics
1144     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1145     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1146     - move a few global fields out of SEAICE.h into seaice_growth.F and
1147       make them 2D (FICE/QNETO/ ...)
1148     - remove FO (it is the same as QNETO)
1149     - introduce a few local fields to avoid modifying external fields such
1150       as atemp, etc.
1151    
1152    checkpoint58s_post
1153    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1154      changed exf_set_gen.F so that
1155        genperiod=0 means input file is one time-constant field and
1156        genperiod=-12 means input file contains 12 monthly means
1157    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1158      this affects truncation error ; generate new output file for exp. which
1159      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1160        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1161        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1162        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1163        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1164        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1165    o start implementation of deep-atmosphere and anelastic formulation
1166    o verification: remove 2nd copy of input files and use script "prepare_run"
1167      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1168    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1169    o profiles: fix for multithreaded case
1170    
1171    o diagnostics: rename few diags:
1172      s/'PRESSURE'/'RCENTER '/g
1173      s/'TICE    '/'oceFreez'/g
1174      s/'TAUX    '/'oceTAUX '/g
1175      s/'TAUY    '/'oceTAUY '/g
1176      s/'SWFLUX  '/'oceQsw  '/g
1177      s/DIFx/DFxE/g
1178      s/DIFy/DFyE/g
1179      and add few ocean-forcing diagnostics:
1180      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1181    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1182      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1183      as actual snow thickness.  It now refers everywhere to effective snow
1184      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1185    
1186    checkpoint58r_post
1187    o modifications to pkg/seaice/growth.F, which change results of
1188      lab_sea experiment: fixes pertain to melting snow over open water, to
1189      masking EVAP under sea ice, and to using the correct AREA variable for
1190      computations of EVAP, PRECIP, HSNOW, and GHEFF
1191    o add ability to read bathy, salt, and theta using MNC (off by def)
1192    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1193      both are turned off by default and do no change any results
1194    o seaice advection with pkg/thsice: a step toward the use of non-linear
1195      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1196    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1197      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1198      in natl_box (affects results @ truncation level: update output.txt)
1199    o multi-threading and IO:
1200      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1201      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1202        (needed to work with SingleCpuIO): tested in all verif. exp.
1203    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1204      affects the results (but none of the verification test uses this scheme).
1205    o Adding some pkg/diagnostics capability to pkg/seaice
1206      (will certainly be subject to changes)
1207    o ctrl: adding new control variables:
1208      lwflux, lwdown, evap, snowprecip, apressure, runoff
1209    
1210    checkpoint58q_post
1211    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1212      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1213      high_res_cube configuration by 4% on Columbia.
1214    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1215      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1216      dynamical allocation (seems to work in multi-threaded).
1217    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1218      single CPU io) so that TAF does not have to see EESUPPORT.h
1219    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1220    
1221    checkpoint58p_post
1222    o obcs: stop if obcs is used with useCDscheme = .true.
1223    o shelfice:
1224     - fix a sign error so that no slip at shelfice interface works
1225     - remove stop for combination non-hydrostatic code and shelfice. That does
1226       not mean, that the results are correct, but at least they are numerically
1227       stable
1228    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1229    o added adjoint exch routined for all exch*3d* routines
1230      and updated flow directives
1231    
1232    checkpoint58o_post
1233    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1234      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1235    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1236      and clean-up reading/writing of pickup files.
1237    o fix local version of read/write pickup (NH part) in rotating_tank/code
1238    o simplify EXCH interface:
1239     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1240     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1241    o added the regrid package
1242    o shelfice:
1243     - add a simple boundary layer scheme to reduce noise
1244     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1245    
1246    checkpoint58n_post
1247    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1248       local variable (not in common block).
1249    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1250      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1251      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1252        to work with SingleCpuIO.
1253    o add "_d 0" to real constant of pkg/cfc subroutines ;
1254       update exp. cfc_exemple & tutorial_cfc_offline output files.
1255    o multi-threading and IO:
1256      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1257        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1258      - barrier before and after reading.
1259      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1260      - avoid using MDS_WRITELOCAL for LAND pkg output.
1261      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1262        common-block variables ; Allows multi-threading with master-thread IO.
1263    o change default MAX_NO_THREADS from 32 to 4 ;
1264      and stop cleanly when MAX_NO_THREADS is too small.
1265    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1266    
1267    checkpoint58m_post
1268    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1269       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1270    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1271       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1272       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1273    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1274        add MITgcm_tutorials (= code + all the tutorials)
1275    o ecco, option to compute cost for total ssh (mean+anom)
1276    o consistent with addition of ptracer and ssh in pkg/profiles
1277    o profiles: adding ptracer and ssh
1278    o testreport: change multi-test output-file name
1279      (from output.txt.{name} to output.{name}.txt)
1280    o profiles: now ok for mutli-tiles case
1281    o seaice: add 4 parameters for different advection schemes for area,
1282      (effective) seaice thickness, enthalphy, and snow height. Their default
1283      is the standard parameter SEAICEadvScheme
1284    o calc_gw:
1285     - add cosFacU in zonal viscous flux (harmonic.visc.).
1286     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1287       of tutorial_plume_on_slope.
1288    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1289    o calc_gw: true flux-form, account for horizontal grid spacing.
1290      update rotating_tank results, but not plume_on_slope (affected at
1291      truncation level, 11 digits).
1292    
1293    checkpoint58l_post
1294    o calc_gw:
1295     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1296     - remove side-drag for now (need to fix it); update plume_on_slope results.
1297     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1298    o commit code to make SST/SSS weights spatially variable
1299      (based on either variable in-situ or variable initial T/S weights)
1300    o pkg/ecco:
1301      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1302        now based on horizontally varying weights wthetaLev, wsaltLev
1303      * cost_averagesflags now returns year indices in addition to day, month
1304      * sflux balance is performed on annual basis
1305        (sflxumm, sfluxmm2, bal_sfluxmm)
1306      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1307        including separate counting and multipliers
1308    o pkg/rbcs
1309      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1310    
1311    checkpoint58k_post
1312    o testreport:
1313     - always build in dir. "build" (if not there, mkdir build instead of building
1314       & running in input)
1315     - run in dir run (if it exists), in build otherwise.
1316     - call prepare_run (if input/prepare_run exists)
1317     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1318    o pkg/exf modifications to interpolation and rotation routines for more
1319       reasonable treatment of North Pole singularity: for tracers North Pole
1320       value is set to northernmost zonal-mean value, for zonal velocity it is
1321       set to zero, and for meridional velocity it is set to northernmost value.
1322    o pkg/exf/exf_check_range.F
1323     - add tile index to diagnostics and move stop statement to the very
1324       end of the routine.
1325    o pkg/diagnostics: (diagnostics_main_init.F)
1326      define title of isomorphic variables according to the current config.
1327    o pkg/thsice with pkg/seaice dynamics:
1328    - fix domain of computation (interior only, required for exf) and do exchanges
1329    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1330    o towards a standard way of dealing with multi-threading in MONITOR
1331      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1332    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1333       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1334    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1335    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1336    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1337       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1338    o tracer advection:
1339     - clean-up and simplify calc_common_factors.F
1340     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1341       advection subroutine (but still not used within DST advection S/R)
1342    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1343    
1344    checkpoint58j_post
1345    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1346      from file (collects calls previously in FORWARD_STEP)
1347    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1348    o adjoint store dir. adjusted accordingly
1349    o genmake2
1350      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1351    
1352    checkpoint58i_post
1353    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1354      on wind stress (SEAICEstressFactor defaults to 1.)
1355    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1356      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1357    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1358      on CS-grid: no longer loosing mass.
1359    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1360    o pkg/ggl90: fix sloppy output and fix a bug
1361    o pkg/seaice: added SEAICEuseEVPpickup parameter
1362      - Set to false in order to start EVP solver with
1363        non-EVP pickup files when using SEAICEuseEVP
1364      - fix sign error in diffusion in seaice_calc_rhs
1365    
1366    checkpoint58h_post
1367    * Modifications for bottom topography control
1368      o replace hFacC by _hFacC at various places
1369      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1370      o add non-self-adjoint cg2d_nsa
1371      o update autodiff support routines
1372      o re-initialise hfac after ctrl_depth_ini
1373      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1374    * Adding verification for 5x5 box (4-layer) bottom topography control
1375    
1376    checkpoint58g_post
1377    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1378       used for mean seasonal cycle, mean diurnal cycle); add an example
1379       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1380    o pkg/ggl90:
1381      - add parameter (minimum surface kinetic energy)
1382      - fix bug (avoiding division by zero)
1383    o couple pkg/thsice to pkg/seaice:
1384      - modify advection in seaice to accomodate new scalar fields to be advected
1385      - only muliDimAdection scheme work with seaice/thsice
1386      - mapping of thsice-variables to seaice-variables, back and forth
1387      - does not break the verification experiments, but does not give the
1388        desired results either
1389    o pkg/seaice
1390      - make (default) second order advection a bit less confusing?
1391    
1392    checkpoint58f_post
1393    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1394      to pkg/seaice):
1395      - new routines thsice_map_exf and thsice_get_exf provide the interface
1396      - add an additional formal parameter to thsice_solve4temp
1397    o pkg/exf:
1398      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1399      - correct Stefan-Boltzmann constant
1400      - new parameter for longwave surface emittance
1401      - separate some stuff from exf_bulkformulae into new routines  
1402        exf_radiation, exf_wind
1403      - add new parameters and constants: longwave emissivity for ocean, ice
1404        and snow, evaporation parameters over ice
1405      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1406        either wind from stress or stress from wind
1407    o pkg/thSIce:
1408    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1409    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1410       and THSICE_CALC_THICKN
1411    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1412    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1413      to make debugging easier.
1414    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1415    o pkg/bulk_force:
1416      - clean-up comments and parameters ;
1417      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1418    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1419      generate new output for test-experiment: aim.5l_cs.thSI
1420    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1421      testreport accordingly
1422    
1423    checkpoint58e_post
1424    o SEAICE_CGRID adjoint done
1425    o R_STAR adjoint implemented.
1426      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1427      * need to sort out init. of h0facc, etc.
1428    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1429      to be able to use it in pure forward.
1430    
1431    checkpoint58d_post
1432    o upgrade simple test-experiment to tutorial example:
1433     step.1: duplicate the experiment and (step.2) will remove the old copy.
1434      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1435      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1436      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1437      tutorial_global_oce_biogeo    <- copy of dic_example
1438      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1439      tutorial_plume_on_slope       <- copy of plume_on_slope
1440      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1441      tutorial_global_oce_optim     <- empty for now (David ?)
1442      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1443     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1444    o correct a sign problem in cost_scat.F
1445    o obcs and ptracers: fix boundary conditions for advections schemes
1446      with larger stencil
1447    o thsice adjoint: start
1448    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1449      completeness
1450    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1451      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1452    o ptracers adjoint:
1453      * avoid extensive recomputatations
1454      * fix missing re-init. of gptr (missed by TAF)
1455    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1456      me to turn off the excessive output to STDOUT that this package produces
1457    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1458      and add those terms in Vector-Invariant formulation.
1459    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1460      if the control period (xx_hfluxperiod etc) is 0
1461    o in profiles pkg, clean routines and fix details
1462    o in ecco pkg, reading ssh data:
1463      fix problem in case the model does not start at iter0=0
1464    o fix mnc-pickup/restart for ptracers
1465    o new package prifiles:
1466      code to compute profile-based cost by Gael Forget
1467      (modifs in ecco, ctrl, autodiff)
1468    o Benign bug fix in initialization (spotted by M. Mazloff) of
1469      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1470    
1471    checkpoint58c_post
1472    o adjoint: finish NLFS adjoint and provide reference output in
1473      verification/global_ocean.90x40x15/results_ad_nlfs
1474    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1475      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1476      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1477      with SEAICE_CGRID defined.
1478    o move calendarDumps from "data" to "data.cal" and clean-up the code
1479      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1480    o add useEXF & useCAL flags (for now, set in hard-coded way)
1481    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1482      (were missing in NH mode, and wrong in quasihydrostatic mode).
1483      waiting for Chris updated version of calc_gw to add those CALLs.
1484    o fix bug in quasihydrostatic S/R ;
1485      add a test for this option: global_ocean.90x40x15.qshyd
1486    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1487      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1488    o add on/off flag useOffLine for package OFFLINE
1489    o seaice:
1490      - modify advection so that it works also on the C-grid
1491      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1492        problem in multi-tile runs with C-grid
1493      - add flags for clipping ice velocities and/or masking solver forcing
1494      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1495        C-grid solver
1496      - added a few comments to seaice_diffusion.F
1497      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1498        are now exclusive)
1499      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1500        required re-ordering the code a little:
1501       + make DAIRN global variable (defined in SEAICE)
1502       + move computation of the viscosities eta and zeta into a new separate
1503         routine (because I need to recompute them in seaice_ocean_stress.F)
1504    
1505    checkpoint58b_post
1506    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1507      update output.txt of exp. aim.5l_cs.thSI
1508    o various mnc cleanups and improvements:
1509      + shrink lookup tables by factor of ~4
1510      + better error reporting when running out of lookup space
1511      + able to handle longer path/file names (up to 500 chars)
1512    o adjoint:
1513      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1514      - TBD: "hidden" mom_vecinv recomp. in dynamics
1515    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1516     (allow to differentiate between forcing components using new integer flags:
1517      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1518     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1519    o ecco
1520      - enable trend removal from SSH anomaly obs.
1521    o adjoint
1522      - a fix for PmEpR when #undef EXACT_CONSERV
1523      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1524      - try to fix "hidden" recomp. in forward_step for NLFS
1525        (NLFS seems broken sometimes after I checked it in)
1526    o seaice:
1527     - add c-grid version of the dynamic solver:
1528       + three new routines that are the c-grid substitute lsr, dynsolver
1529         and ostres
1530       + put a few fields that were local to dynsolver into global common
1531         blocks, so that I can move the computation of stresses etc into
1532         seaice_lsr (saves coding but may break the adjoint).
1533     - replace more hardwired parameters by runtime parameters
1534     - add ice masks that mask the rhs of the implicit solvers where there
1535       is no ice (commented out in seaice_dynsolver, because i am not sure
1536       if this works properly), eventually this should replace the clipping
1537       of ice velocities in seaice_dynsolver to +/-40cm/s.
1538    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1539      include it only where its needed
1540    o move balancing of fluxes before the call of external_forcing_surf
1541    o seaice:
1542      - correct units of turning angles (now they are really in degrees)
1543      - move computation of GWATX/Y out of main routine into dynsolver
1544      - initialize GWATX/Y in seaice_init
1545    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1546      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1547    o seaice: add runtime flags for turning angles (default to zero)
1548    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1549      and trend from exf forcing and ctrl control adjustments
1550    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1551      (since checkpoint57x_post)
1552    o change the default rotation period to 86164.s = the Earth rotation
1553    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1554      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1555    o seaice advection: add code for choosing between the default (2nd order
1556      central differences) and multiDim advection schemes provided by
1557      pkg/generic_advdiff
1558    o seaice:
1559      - removed all references to SEAICE_GRID.h fields from
1560        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1561        (cubed-sphere configuration will change a little)
1562      - grid computations in seaice_init are obsolete now.
1563      - cleaned up code a little so that is easier to read (hopefully).
1564      - added new (better?) discretizations of default advection and diffusion
1565        (turn on with SEAICEuseFluxForm)
1566      - replace 1 in 3d global fields by kSurface in growth.F
1567      
1568    checkpoint58a_post
1569    o seaice:
1570      - bug fix in advect.F
1571    o shelfice:
1572      - separate shelfice load anomaly from pload (breaks with time
1573        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1574        Its default is 0., but it may be computed more cleverly from (unknown)
1575        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1576        done offline. A good approximation of the pressure load anomaly is
1577        necessary to avoid large initial adjustment processes underneath
1578        deep-reaching shelfice.
1579      - small fix in ISOMIP shelfice_thermodynamics
1580      - add more sophisticated thermodynamics of Hellmer (1989), this is
1581        now the default
1582      - give a few constants more intuitive names
1583    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1584      if bulk formulae are used in long integration (especially EmPmR). Turn
1585      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1586      if balancePrintMean, the imbalance that is substracted is printed to
1587      STDOUT.
1588    o fix bug (typo) in obcs_apply_eta.F
1589    o add a new package shelfice which enables us to model the circulation
1590      underneath shelf-ice with draughts of hundreds of meters.
1591     - works
1592     - to do: + include improved thermodynamics
1593              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1594                instead of new field kTopC
1595              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1596                instead of new field R_shelfIce and new code in ini_depth.F
1597                and ini_mask_etc.F?
1598              + adjust vertical mixing schemes?
1599    o seaice pkg:
1600     - add a cpp-flag to include a simple formula for a salinity dependent
1601       freezing point of sea water at the surface
1602     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1603       meridional stresses are now different (and hopefully correct)
1604    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1605       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1606       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1607    o pkg/diagnostics: add options and parameters for regional-statistics
1608       diagnostics ; define regions by reading a region-mask from a file
1609       (might add other options later)
1610    o pkg/bulk_force:
1611     - add option and parameters to use AIM surface-flux formulae.
1612     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1613       others forcing fields (defined in PARM05, parameter file "data") are loaded
1614       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1615     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1616     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1617     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1618       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1619     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1620    
1621    checkpoint58
1622    o add "--embed-source" option to genmake2 which, when the supporting
1623      tools can be compiled (as determined by genmake2) will turn on the
1624      embed_files package which then embeds the entire MITgcm source code
1625      (*.[fFhc] + Makefile) used for the build within the executable
1626      - requested by CNH but off by default
1627      - adds a paltry <9MB to the mitgcmuv executable in most cases
1628      - only writes the output when useEMBEDSRC in eedata is true
1629    o clean up 3-dim. relaxation codes:
1630      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1631      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1632      * Thanks to Tom Haine for testing!
1633    
1634    checkpoint57z_post
1635    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1636      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1637    o fix the pickup behavior for obcs in combination with ptracers
1638    o fix a bug in ptracers_external_fields_load
1639    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1640      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1641    o transfered surface NH pressure to eta field (if exactConserv).
1642    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1643         and update lab_sea output.txt file.
1644    o completing 3-dim. relaxation code: additional term
1645         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1646      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1647      * At compile time, in "EXF_OPTIONS.h" set
1648          #define  ALLOW_CLIMTEMP_RELAXATION
1649          #define  ALLOW_CLIMSALT_RELAXATION
1650      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1651          tauThetaClimRelax3Dim = 15552000.0,
1652          tauSaltClimRelax3Dim  = 15552000.0,
1653      * 3 cases:
1654          1) Use a constant-in-time 3-dim. field
1655          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1656          3) Real-time relax. to time-evolving prescribed field
1657    o Adding Laplacian-type smoothness constraint on
1658      initial and boundary (forcing) controls (ic, bc)
1659      * enable at compile-time via
1660        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1661      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1662      * Absolute scale somewhat unclear so far
1663      * no area weighting was included since no other cost term does so far
1664    
1665    checkpoint57y_post
1666    First step for a NLFS adjoint
1667    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1668    o new init. routines for calc_r_star, calc_surf_dr
1669    o still need to deal with ini_masks_etc
1670    o testreport seemed happy
1671    checkpoint57y_pre
1672    
1673    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1674    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1675    o add new offset feature to offline pkg (plus minor cleanup)
1676    o cfc fixes for final year of integration
1677    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1678      be in GCHEM_OPTIONS).
1679    
1680    checkpoint57x_post
1681    o fix testreport Pb in multiple test experiment.
1682    o cleanup our namelist syntax in verification:
1683      - make it more F95 standards compliant (some work still needed)
1684      - allows the vast majority of our tests to work with gfortran
1685    o Non-Hydrostatic:
1686     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1687     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1688    o Allow to apply AB on T,S rather than on AB(gT,gS):
1689     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1690     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1691       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1692     - need a "clever" read_pickup to restart from the other AB formulation
1693    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1694    o remove some unused variables (reduces number of compiler warnings)
1695    o adjoint
1696      * Disable useVariableViscosity for adjoint for time being
1697        (there are a number of extensive recomputations)
1698      * Initialize certain variables needed for adjoint
1699    
1700    checkpoint57w_post
1701    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1702                 fix the singleCpuIO RS version of MDSWRITEFIELD
1703       and add a WARNING if using globalFiles=T with multi-processors.
1704    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1705      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1706    o tracer advection scheme:
1707      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1708       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1709       was not very convenient).
1710      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1711       (further tests needed for the implicit DST & Flux-Limiter schemes).
1712    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1713      and sRef for convenience, handy, when you want to initialize
1714      ptracers in a large domain with a constant non-zero value. Also,
1715      untangle ptracers_init.F a little.
1716    
1717    checkpoint57v_post
1718    o change dome exp. to use variable viscosity in side-drag terms.
1719    o remove all the files from the cfc_offline test since they are now
1720      incorporated into tutorial_cfc_offline which has been producing
1721      identical results for a few days of testing
1722    o add new parameter: sideDragFactor to enable half-slip-side BC
1723      and change side-drag S/R to use viscosity from mom_calc_visc
1724      (can switch back by setting sideDragFactor=0.); affects results at
1725      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1726       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1727    o vorticity & strain are now computed without masking, to account for
1728      no-slip-side BC in variable viscosity calculation ; mask is applied
1729      anyway later on, before computing advection/coriolis terms.
1730    o modify exp4 to test new obcs support for reading from external files
1731      and for passive tracers
1732    o fix behavior of ptracers_monitor when monitor output is written to a
1733      netcdf-file; still not independent of monitor.F (writes in the same
1734      file).
1735    o change default value of tRef (put a uniform, meaningful value for ocean
1736      & atmos) and initialize sRef (was missing, as Martin mentioned).
1737    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1738      to be proportional to enstrophy dissipation length.  Thus,
1739       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1740      This is now consistent with Smagorinsky and with the manual.
1741    
1742    checkpoint57u_post
1743    o OBCS and PTRACERS: add open boundary support for passive tracers
1744      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1745        OB-values from file; this is not different from the way theta and salinity
1746        are treated
1747      - however, Orlanski-radiation conditions are not supported, and the model
1748        will stop if you use pTracers and Orlanski at the same time.
1749      - beefed up the rountine obcs_external_fields_load: now only those open
1750        boundary values are overwritten with values from files for which there
1751        are really files, otherwise the OB-fields remain untouched. This makes
1752        it possible to use different OBs at different ends of the domain (as
1753        with EXF)
1754    o reduce number of exch calls in shap_filt (s2).
1755    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1756      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1757    
1758    checkpoint57t_post
1759    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1760    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1761      same truncation, independent of the face number: affects affects several
1762      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1763    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1764      note that biharmonic viscosity + no-slip was not tested in any experiment.
1765    o fix bug in non-linear free-surf side-drag ; generate new output for
1766      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1767    o make mnc honor the writeBinaryPrec flag for most kinds of output
1768    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1769    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1770      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1771    o add brackets in multi-terms sum to get same truncation, independent of
1772      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1773      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1774    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1775      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1776      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1777      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1778      Suggested values of viscosity parameters found in mom_calc_visc.
1779      Many new viscosity diagnostics available.
1780    
1781    checkpoint57s_post
1782    o Add clearing-house for viscosity calculations, mom_calc_visc and
1783      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1784      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1785      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1786      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1787      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1788      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1789      ViscAhStrain and viscAhTension are now retired.
1790    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1791    o In response to JMC's bug report, genmake2 now ignores any soft-links
1792      that it finds in the *current* directory when searching for files.
1793      Soft-links found in any other source directories will still work as
1794      they did before.
1795    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1796      a C routine to unlimit the stack size
1797    o mnc-ify pkg/aim snapshot vars
1798    o mnc-ify pkg/land as requested by Daniel
1799    o various changes to mnc including:
1800      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1801      - output can now be grouped so that all files within a group
1802          change the ITER portion of their names in lock-step together
1803      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1804          and works with both EXCH1 and EXCH2 (but needs more testing)
1805      - writing works for all verification test cases w/ g77 on Linux
1806    
1807    checkpoint57r_post
1808    o make MNC variable initialization happen earlier
1809    o add diagnostics for (almost) each term of the momentum Eq.
1810    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1811    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1812    o remove MINIMAL_TAVE_OUTPUT option ;
1813      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1814    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1815      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1816    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1817    o add time-dependent SST, SSS control
1818    o cost terms in ecco/ modularized (new cost_generic.F)
1819    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1820    o new infrastructure for seaice model vs. obs misfits in seaice/
1821      * driver from the_main_loop.F is seaice_cost_driver.F
1822      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1823      * gradient check in Exp. 6a of natl_box_adjoint/
1824    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1825      (see README file)
1826    
1827    checkpoint57q_post
1828    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1829    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1830      - bug was reported by Jean-Michel and Ian Fenty
1831    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1832      update exp. cpl_aim+ocn output.
1833    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1834      Needed for high-res. runs with large global files
1835      to be able to limit tapelev size
1836    o Changed some tests for adjoint:
1837      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1838      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1839      * global_ocean.90x40x15/ back to default 3-level checkpointing
1840    o Modifications to enable scripted COMMON to MODULE conversion
1841      * verification/OpenAD/code/ has necessary scripts and description;
1842      * converts, compiles and runs successfully;
1843    
1844    checkpoint57p_post
1845    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1846    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1847      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1848    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1849    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1850      (was already the case for dissipation with mom_vecinv,
1851       and also the case for grad.PhiHyd when staggered-timeStep)
1852      This will allow to put dissipation out-off the AB time-stepping.
1853     Unfortunately, affects truncation error. Update output of exp. that "fails"
1854      (cg2d matching number) and leave the others for later: front_relax(10),
1855      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1856      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1857    
1858    checkpoint57o_post
1859    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1860      (2) its ready to be documented during the 20050801 DocFest
1861    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1862      for ideal_2D_oce and lab_sea on linux_ia32_g77
1863    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1864      in global1x1_tot/code_seaice_adj to access indices 32, 33
1865      (worth another tag)
1866    
1867    checkpoint57n_post
1868    o adding precip control xx_precip 32
1869    o adding swflux control xx_swflux 33
1870    o Replacing 10 forcing penalty cost routines by 1 generic.
1871    o Implementing partitioning in time-mean and variable adjustment
1872      for atmos. state.
1873    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1874    o in natl_box_adjoint:
1875      * updated exp 1 to 10
1876        (but does not have time-mean vs. variable split results yet)
1877    o updated global1x1/*_seaice_adj/
1878      to incorporate latest changes
1879    o enable useSingleCpuIO for mdsio vector routines
1880      (applies in particular to tapelev I/O)
1881    o removed inefficient K-loop in all active_file*control*.F
1882    
1883    checkpoint57m_post
1884    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1885      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1886    o pkg/exch2: filling of face-corner halo regions is optional
1887      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1888    
1889    checkpoint57l_post
1890     tag before updating tutorials (pre-release-2)
1891    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1892       for output and interpolation of input fields onto model grid)
1893    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1894       Affects results of exp. rotating_tank ; update output.txt.
1895    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1896          and taking the square quantity and/or using a fraction-weight field.
1897    o fix aim_diagnostics_init.F mate numbers.
1898    o add mnc output capability to diagnostics/diagstat and update
1899      our cvsignore files for the ACSII output generated
1900    
1901    checkpoint57k_post
1902    o lab_sea now uses diagnostics package and provides a suite of
1903      new EXF diagnostics output.
1904    
1905    checkpoint57j_post
1906    o exf
1907      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1908        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1909        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1910      * extended diagnostics output
1911        - now includes all EXF variables
1912        - hs, hl moved to common block
1913        - separate S/R for diagnostics, called after ctrl vector is added
1914        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1915        - EXFqnet contains true Qnet (i.e. includes qsw)
1916      * updated verif. lab_sea, global_with_exf
1917      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1918        to ensure that diagnostics sees a true EXFqnet
1919    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1920    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1921      several times with different frequencies.
1922    o mnc-ify the thsice package as requested by Daniel Enderton
1923      - the monitor--MNC output needs work
1924      - many attributes need to be added (most are currently blank)
1925    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1926      - many attributes need to be added (most are currently blank)
1927    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1928    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1929    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1930      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1931         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1932    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1933     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1934    
1935    checkpoint57i_post
1936    o Diagnostics package was changed: diagnostic allocation is now deactivated
1937      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1938    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1939      add 1rst Order upwind vertical Shear.
1940    o add a quick fix for A/B checkpointing in OFFLINE mode
1941    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1942      end-run around the C/Fortran linking horror in eesup/src/timers.F
1943    o added pkg/runclock: allows user to terminate run based on wall clock
1944    o added non-hydrostatic scaling parameter: nh_am2
1945    o pkg/my82: futile attempt to make results compiler-independent by adding
1946      some "_d 0", etc. no effect.
1947    o for mnc output, fill the 'T' coordinate var with myTime and create a
1948      separate 'iter' variable for iteration count
1949    o pkg/diagnostics:
1950      add new capability: output of Global/Regional & per-level statistics ;
1951      tested against monitor output (including land & thSIce) on various exp.
1952    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1953    
1954    checkpoint57h_done
1955      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1956      data.diagnostics, data.gchem, data.ptracers) is done.
1957    
1958    o pkg/diagnostics: prepare for Global/Regional statistics.
1959      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1960    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1961      and rename it: DIFFERENT_MULTIPLE
1962    
1963    checkpoint57h_post
1964    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1965    o pkg/diagnostics: change output frequency, now in seconds (instead
1966      of Nb of iterations). This requires to change data.diagnostics.
1967    checkpoint57h_pre
1968    
1969    o in mnc, let the user create the output dir if both mnc_outdir_date
1970      and mnc_outdir_num are false
1971    o add fflags() to pkg/diagnostics which allows one to specify, on a
1972      per-file basis, the file precision [default behavior is unchanged]
1973    o added diagnostics to pkg/kpp, including computation of mixed layer
1974      depth based on a temperature/density criterion
1975    o updated verification/natl_box to test the new pkg/kpp diagnostics
1976    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1977    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1978    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1979      not mnc -- this mistake was found by JMC and is now corrected
1980    
1981    checkpoint57g_post
1982    o add Adams-Bashforth 3rd Order time stepping:
1983      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1984      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1985    checkpoint57g_pre
1986    
1987    o make lambda[Theta,Salt]ClimRelax spatially varying
1988      (default remains spatially uniform constant based on tau)
1989    o added new control variables
1990      * init. uVel, vVel, etanN
1991      * lambda[Theta,Salt]ClimRelax
1992    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1993      (suggested by G. Forget)
1994    
1995    checkpoint57f_post
1996    o add parameter "baseTime" = model base time = time at iteration zero
1997      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1998      account for baseTime shift
1999    o move Coriolis arrays from PARAMS.h to GRID.h
2000    checkpoint57f_pre
2001    
2002    o mnc-ifying the seaice package
2003    o introduced an alternative length scale calculation for use in the limiting
2004      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2005    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2006    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2007      as well as grad(vort3).  Made it compatible with both approximate form
2008      for the cubed sphere and full form of these gradients.  Added flag
2009      useFullLeith to select between approximate and full form.  
2010    o add "d0" in getcon.F to reduce differences between compilers/platforms
2011      update output.txt of exp. fizhi-gridalt-hs
2012    o change port_rand funtion to allow to set the seed.
2013    o fix obscure MNC bug involving conversion between reals and integers
2014      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2015        new version is now more standards-compliant
2016    o adjoint-related modifications
2017      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2018      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2019      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2020    
2021    checkpoint57e_post
2022    o Adding eddy stress controls a la Ferreira et al.
2023    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2024    
2025    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2026      update output.txt of exp. fizhi-gridalt-hs
2027    o add more "Z" dimensions and associated coordinate vars to MNC
2028    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2029    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2030      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2031      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2032      months and years.  Requires pkg/cal.
2033    o diagnostics: add pickup functionality
2034      - off by default for backwards compatibility
2035      - current version only uses MDSIO -- MNC will be added
2036    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2037    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2038    
2039    checkpoint57d_post
2040    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2041    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2042      output from the diagnostics package
2043    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2044    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2045      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2046    o add coordinate variables to the MNC output from the diagnostics package
2047    o change MNC-flags default value: true when useMNC=TRUE
2048    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2049      the ability (off by default) to read the grid information using MNC
2050    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2051    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2052    o do snap-shot diagnostics at the middle of the time-interval (instead of
2053      at the end).
2054    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2055      new test for AIM with thSIce + slab-ocean
2056    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2057    o move state variable diagnostics to the beginning of the time step ;
2058      (note: still needs some work specially for snap-shot diagnostics)
2059      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2060    
2061    checkpoint57c_post
2062    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2063    o generate new output.txt files on faulks with g77 & the new -ieee option
2064    checkpoint57c_pre
2065    
2066    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2067      update output.txt of exp. global_ocean.90x40x15
2068    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2069      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2070    o add saltFlux(+File) forcing capability with periodicExternalForcing
2071    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2072    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2073    o improvements for the MNC output from DIAGNOSTICS:
2074      - correct handling of the unlimitied dimension
2075      - all dims now have associated coordinate variables
2076      - variables located at U, V, and Corner ("Z") points are now written
2077        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2078        *all* data points are output
2079    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2080    o added pkg/seaice/seaice_monitor.F
2081    o mdsio_readfield.F can now read files visible only to master MPI process.
2082    o pkg/seaice: some test code for ice-modified ocean stress
2083    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2084      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2085      spurious negative numbers for precipitation and humidity.  Will cause
2086      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2087    o pkg/ctrl/
2088      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2089        May be enabled via doPackDiag
2090      *  introduce z-scaling of
2091         + gradient (doZscalePack) and
2092         + control (doZscaleUnpack)
2093    o pkg/mdsio/
2094      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2095      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2096    
2097    checkpoint57b_post
2098    o simplify options in diagnostics_fill arguments (remove weird combinations)
2099    o fix MNC coordinate variables so that they now contain per-face index
2100      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2101      general, EXCH2 grids are only aligned to a "local" coordinate system
2102    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2103    o Implement instantaneous output within pkg diagnostics:
2104      setting a negative frequency in data.diagnostics produces
2105     "snap-shot" output (as opposed to time-average if freq > 0)
2106    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2107      NOTE: change ptracer diagnostics name: use 2 characters to work with
2108            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2109    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2110      becomes the coordinate variable for the 'T' dimension
2111    o add CF-style coordinate variables to MNC
2112      - just a first cut:  numbers are meaningless on the cubesphere and
2113        missing along the T axis but otherwise it works!
2114    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2115    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2116    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2117      this is based directly on what the model compute, so that the content of
2118      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2119    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2120    o clean up build options files for SunOS, in particular
2121      - remove -traditional from xmakedepend
2122      - change -xarch=v9 to -xarch=native for f77
2123      - restore use of make (not gmake)
2124      - add CC=gcc if using g77
2125    o changes per discussion of AM, JMC, & EH3 today:
2126      - move redundant "grid" variables out of "state" -- in preparation of
2127        creating proper CF-style coordinate variables and in recognition
2128        that any/all grid variables can be easily copied (eg. w/NCO) from
2129        the grid files into any of the other NetCDF files
2130      - *always* output grid variables with MDSIO (this will eventually be
2131        changed)
2132      - output MNC grid file if useMNC is true
2133    o every instance of _END_MASTER() has been found and replaced with
2134      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2135      preprocessors
2136    o re-arrange diagnostics pkg initialisation:
2137     - allow each package to extend the available diagnostics list
2138     - add some checking and fix small problems (multi-threaded, ...)
2139     - new S/R diagnostics_fill (replace fill_diagnostics):
2140       look through the short list of active diag. (instead of the long list)
2141       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2142    
2143    checkpoint57a_post
2144    o this set of changes restores TAMC compatibility
2145      tested for global_ocean.90x40x15 adjoint on trough
2146      (what a pain)
2147    
2148    checkpoint57a_pre
2149    o some modifs in tools/build_options for sunos
2150    o call ctrl_pack for ctrl at end for optimcycle=0
2151    
2152    checkpoint57
2153    o add horizontal bi-harmonic viscosity for vertical velocity
2154      - new parameter viscA4W (defaults to viscA4)
2155      - affects only non-hydrostatic code
2156      - to be done: no-slip lateral boundary conditions
2157    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2158    o implement Implicit Vertical advection for pTracers
2159    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2160      (implemented also for implicit vertical diffusion & advection)
2161    o OBCS: extend application of tracer open boundary conditions
2162      to a strip beyond the boundary of width Olx/Oly
2163    o add call monitor to TAF set of required calls (flow directives)
2164      and include in natl_box_adjoint
2165    o untangle a few ifdefs related to cost, ctrl, autodiff
2166      untangel a few ALLOW_ECCO_OPTIMIZATION
2167    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2168      (theta2, salt2 in ecco_cost_weights)
2169    
2170    checkpoint56c_post
2171    o OBCS as control variables
2172      - update ctrl_ad_diff.list, obcs_ad_diff.list
2173      - remove balance of obcs controls from default
2174      - fix index bug nobcs in ctrl_init
2175      - fix dummy fields filen in ctrl_pack
2176      - add dummy weights for obcs
2177    o lsopt: comment out fort.94 output
2178    o optim:
2179      - remove unnecessary header files
2180      - adjusted namelists
2181      - add xerbla.F to Makefile
2182    o exf:
2183      - multiple modifications of exf_check_range
2184      - unit change in exf_init_runoff from [m/year] to [m/s]
2185    o mdsio:
2186      - i/o-vector change debugLevel from debLevA to debLevB
2187    
2188    checkpoint56b_post
2189    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2190      is called from DO_THE_MODEL_IO
2191      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2192      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2193      - clean up PTRACERS_WRITE_TIMEAVE a little
2194    o add another verification experiment that tests both the cfc-pkg and
2195      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2196      reactive tendencies treated inline with regular timestepping
2197    o testreport previously did a lousy job of comparing small numbers, so
2198      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2199      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2200      testreport.
2201    o ptracers_monitor: bug fix for MPI
2202    
2203    checkpoint56a_post
2204    o GCHEM: finish reorganizating the package
2205      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2206        (introduces another 3D-array for each passive tracer, but only if
2207        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2208        gchemTendency is not needed because the timestep is done separately)
2209      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2210      - GCHEM is now---more or less cleanly---separate from PTRACERS
2211      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2212        so clear to me how that should be done in a general way.
2213    o CFC: improve formatting of output in CFC_ATMOS
2214    o PTRACERS:
2215      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2216        that ALL experiments with ptracers enable can be checked. This makes
2217        GCHEM_MONITOR obsolete.
2218      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2219        monitorFreq
2220      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2221    o add PTRACERS (PTR0[1-5]) to testreport output
2222    o exf_check_range:
2223      * default changed to .TRUE.
2224      * will check values for niter0 if debLevA, every timestep if debLevB
2225      * STOP in exf_check_range if 'out of range'
2226      * range chosen generous to allow for potential extema
2227      TBD: a version with stricter range
2228           permitted range would be runtime parameters
2229  o GMredi:  o GMredi:
2230    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2231    - 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 2234  o GCHEM:
2234    - 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
2235      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2236    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2237      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2238        this flag is now only visible within GCHEM-pkg routines.
2239      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2240        be replaced by a 3D array that is computed before thermodynamics; for
2241        this, the tracer ID iTracer had to be included into the parameter list
2242        of ptracers_forcing
2243      - set up forward_step to call gchem_forcing, that will replace
2244        gchem_forcing_int in ptracers_forcing
2245      - cleaning up
2246  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
2247    
2248  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2461  o add two new packages
2461    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2462    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2463      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2464      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2465  o add offline package  o add offline package
2466  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2467    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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