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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1084 by jmc, Thu Apr 2 21:47:23 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o experiment fizhi-cs-aqualev20:
8  o moved ptracer ctrl index 17 -> 32    switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
9      and generate new output. Note: new output is much closer to the old
10      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
11      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
12    o pkg/fizhi:
13     - change to avoid indices going deliberately over array-bounds
14     - remove unnecessary MPI stuff
15     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
16     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
17       does not go over array-bounds and therefore returns reliable output.
18     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
19       this S/R has 4 output arguments, which are used inside "get_alarm";
20       when it is called with the same variable "ndum" in place of several
21       output arguments, this produces weird side effect inside "get_alarm"
22      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
23       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
24       address) and produces error.
25    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
26    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
27       update lab_sea.lsr & lab_sea.salt_plume results
28    o pkg/seaice:
29      Major overhaul of the LSOR solver: change discretization from original
30      finite differences to finite volume. The old routine is still in the
31      file seaice_lsr.F and can be turned on with the CPP-flag
32      SEAICE_OLD_AND_BAD_DISCRETIZATION
33      Along with this change, the discretization of the strain rates is changed.
34      The same flag turns on the old discretization in seaice_calc_strainrates.F
35      All verification experiments with seaice are affected (except for
36      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
37      results by setting the above flag.
38      Further changes involve changes in defaults:
39      - ALLOW_FLOODING is defined and turned on by default
40      - SEAICE_advSnow = .true. is now the default
41      - SEAICE_advSalt = .true. is now the default
42      - SEAICE_advAge  = .true. is now the default
43      - SEAICE_clipVelocities  = .false. is now the default
44                                         (as per J. Zhang's recommendation)
45      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
46        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
47      - seaice_growth: replace computation of UG by a simple copy from wspeed
48    
49    checkpoint61k
50    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
51      seaice_lsr: fixed a few metric terms,
52                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
53                  add more debugging diagnostics
54      seaice_evp: removed superfluous many metric terms of FV discretization
55                  of stress divergence
56                  affects lab_sea, lab_sea.hb87
57      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
58                  of stress divergence for non-evp solver
59                  (this part is not tested anywhere)
60      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
61                  they were effectively only half slip
62                  affects lab_sea.hb87
63      updated all relevant verification experiments (except lab_sea//output_adm.txt
64        which was left over, but fails at level 7 & 6)
65    
66    checkpoint61j
67    o pkg/seaice: turn a few hard wired parameters into run time parameters
68    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
69      time in seconds as promised by the usints in seaice_monitor and exf_monitor
70    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
71      that are not cubed-sphere grids
72    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
73    o pkg/ctrl:
74      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
75    o non-hydrostatic (calc_gw.F):
76      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
77      update output of exp. global_ocean.cs32x15.viscA4
78    o remove backward compatibility for thetaMin,phiMin
79      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
80    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
81      interpolated wind field not only for curvilineargrid=.true., but also
82      for a rotated grid (rotateGrid=.true.)
83    o pkg/exf: add capability to bypass interpolation for runoff
84      by setting yet another CPP-flag
85    o eesupp/src, B-grid exchange:
86      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
87    o autodiff
88      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
89      allows to switch to single-prec common blocks;
90      corresponding switch occurs in tamc.h, integer isbyte
91      TAF store directivs "byte" and "kind" seem equivalent;
92      Most tamc.h have been updated correspondingly.
93    
94    checkpoint61i
95    o autodiff:
96      fix autodiff_sore/_restore indices for obcs
97      (spotted by I. Hoteit, M. Mazloff)
98    o pkg/autodiff, pkg/ctrl:
99      Add flag to reduce all tapelev I/O to single-prec.
100      In data.ctrl set
101        doSinglePrecTapelev = .TRUE.
102    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
103      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
104    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
105      real fresh water flux (not yet)
106    o pkg/mdsio & rw:
107     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
108     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
109    o pkg/flt:
110     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
111       init_fixed & ini_varia.
112     - clean-up & simplify linear interpolation S/R:
113       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
114     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
115     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
116     - add vert. coordinate & horiz. indices to output files.
117     - change vertical position in initial condition, from index to depth [m].
118     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
119       (easier to get to a curvilinear grid) ; delX,delY no longer used.
120    o pkg/ggl90: a few modifications:
121     - fix bottom boundary condition, and interpolation of KappaE
122       near top and bottom
123     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
124     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
125     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
126    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
127      (maintain temporary backward compatibility, until next checkpoint)
128    
129    checkpoint61h
130    o pkg/diagnostics with "periodic averaging diagnostics":
131      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
132    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
133    o pkg/obcs: fix loop ranges for balancing code
134    o pkg/flt:
135     - improve criteria for finding which tile owns a float.
136     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
137    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
138      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
139      with ocean biogeo)
140    o pkg/flt:
141     - do some cleaning and fix the restart ;
142     - add output.txt in flt_example/results to get this pkg tested.
143    o genmake2: add an EXTENDED_SRC option and flag.
144       for now, cannot be turned on on command line (only through genmake_local)
145    o pkg/mdsio: read/write vector:
146     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
147     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
148       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
149     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
150      (drop to 4 digits matching for grad). But this test does not look very
151      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
152    
153    checkpoint61g
154    o pkg/flt:
155      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
156       + make OPTIONS file more standard.
157      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
158      - fix _BYTESWAPIO CPP-Flag
159      - standard reading of file-parameter "data.flt"
160      - fix argument list of S/R FLT_RESTART
161      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
162    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
163    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
164      a still unfixed compiler/optimization bug
165    
166    checkpoint61f
167    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
168      update results of global_ocean.cs32x15.icedyn test.
169    o move getcon.F from model/src to pkg/fizhi.
170    o pkg/exf: add parameter for extrapolation of temp up to the surface
171       and option to prevent negative evap (in bulk_largeyeager04 only).
172    o Prather Advection scheme: fix tracer conservation for divergent flow
173      (e.g., when using NonLin Free-Surface).
174    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
175    o gmredi (Visbeck-variable-K):
176     - add more parameters to Visbeck-variable-K.
177     - use a 5 points average for dSigmaR in Visbeck-K calculation
178       (more "homogenous": same stencil and same weights as in dSigmaH)
179     - update output of ideal_2D_oce experiment.
180    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
181      (#undef REAL4_IS_SLOW)
182     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
183       coordinate variable
184     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
185       (surface forcing fields), removes some of the functionality
186     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
187     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
188       probably not all: copy _RS surface flux fields to RL field before
189       calling DIAGNOSTICS_FILL
190     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
191       real*4 (CALL EXCH_*_RS) versions.
192     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
193       (generate new output).
194    
195    checkpoint61e
196    o gmredi (Visbeck-variable-K):
197      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
198      - change computation of Visbeck-K where Slope > Smax :        
199        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
200        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
201    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
202      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
203    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
204    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
205      does not become too large (to avoid precision problems in implicit-diffusion
206      solver); update ideal_2D_oce output.
207    o pkg ggl90:
208      - in ggl90_cal.F: compute only one set of visc/diff, used to
209        step forward TKE/T/S/momentum
210      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
211        have Prandlt =1)
212    o gmredi (fm07):
213      - add lower limit on Transition layer thickness + lower limit on 1/lambda
214      - allow to set few more params from data.gmredi
215    o pkg ggl90:
216          - add missing sqrt(2) factor in computation of mixing length
217            scale in ggl90_calc.F
218            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
219    
220    checkpoint61d
221    o adjoint modifs
222      - adapt to new field rhoInSitu
223      - allow to revert from StoreDynVars2D, StoreDynVars3D
224        to individual fields
225        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
226    o store 3-D (in-situ) density in commom block (DYNVARS.h)
227     - save 1 rho computation.
228     - no longer modify T & S inland when using down_slope pkg.
229    o gad_som : allow to switch to SOM advection for T & S without corresponding
230      pickup files (using new S/R: MDS_CHECK4FILE).
231    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
232      (for useSingleCpuIO to work in multi-threaded)
233    o pkg/shelfice:
234     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
235       with SHELFICEtopoFile in data.shelfice
236     - move code for reading ice shelf topography and modifying hFacC into separate
237       subroutines of the shelfice package
238     - separate initialisation of "fixed" and "variable" variables
239     - kTopC is not (yet) replaced by kSurfC, although this is possible
240    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
241    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
242      and rename:
243      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
244      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
245    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
246    
247    checkpoint61c
248    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
249      to add mass source/sink of fluid in the interior (3-D generalisation
250      of oceanic real-fresh water flux).
251    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
252    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
253    o new pkg: down_slope
254      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
255      - presently, modify T & S inland (dwnslp_calc_rho.F).
256        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
257      - implementation for ocean in P-coords not tested.
258      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
259    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
260      (to facilitate conversion of oceanic pkg to p-coordinate).
261    o change FIND_RHO to FIND_RHO_2D :
262      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
263    o new pkg: cheapaml
264    
265    checkpoint61b
266    o exch2:
267      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
268      - no longer depend on the order sequence (N,S,E,W).
269      - 3rd exchange no longer needed (tested with 24 tiles).
270      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
271      - exch_UV_A-grid readily available (but not yet tested).
272      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
273      (both are no longer needed) in exch_uv: no effect in forward run; but
274       get truncation error differences with adjoint exch.
275    o exch2:
276     - change index-bounds storage (moved from target to local tile,
277       more intuitive this way) ; rename/remove some variables.
278     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
279    
280    checkpoint61a
281    o exch2/matlab-topology-generator:
282      fix bug in index bounds for N-S internal exchange (hard to tell if this
283      had any effect on the solution).
284    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
285      is exceeded
286    o testreport: modify syntax of awk, so that it works also with
287      awk, and not only with nawk and gawk
288    
289    checkpoint61
290    o autodiff
291      Change default for TAF usage by removing argument '-nonew_arg'
292      This changes TAF subroutine argument list (ordering of active var.)
293      Omission of this flag leads to incompatibility w.r.t. TAMC
294      To restore TAMC-compatibility, need following modifs:
295      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
296      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
297      Tested TAF version is 1.9.22
298      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
299    
300    checkpoint60
301    --->>> This is the last checkpoint for which generating the adjoint
302    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
303    --->>> by default.
304    --->>> Future checkpoints will ommit this flag by default.
305    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
306    o pkg/grdchk: Add gradient check to etan0 perturbations.
307    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
308    o pkg/autodiff: more flexibility in zeroadj.
309      model/src: modifying do_oceanic_phys.F accordingly.
310    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
311    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
312      special setup of gmredi for which the adjoint is stable
313      enough for parameter optimization.
314    o bridging the gap between eddy stress and GM.
315      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
316          along with a change in CPP option (now ALLOW_EDDYPSI).
317      -> when using GM w/ GM_AdvForm:
318          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
319          is applied either in the tracer Eq. or in momentum Eq.
320          depending on data.gmredi (intro. GM_InMomAsStress).
321      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
322      The key modifications are in model/src/taueddy_external_forcing.F
323      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
324    
325    checkpoint59r
326    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
327      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
328      fix option to read coriolis(@ cell-corner) from files with CS-grid.
329    o pkg/mnc: add some attributes to standard 1D-coordinate variables
330    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
331      mass points, when using mnc for output
332      - add runtime parameter (missing_value, missing_value_int) to override
333        default (which is the value of getcon('UNDEF'))
334    o pkg/mnc: prepare mnc for the actual use of missing values with the
335      diagnostics package: small fix in mnc_cw_readwrite.template and more
336      initialisation of never used fields
337      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
338      versions
339    o pkg/thsice/thsice_ini_vars.F added default initial values so that
340      thermodynamics sea ice solver does not blow up when some initial fields
341      are missing.
342    o move from external_forcing_surf.F to ini_forcing.F
343      the p-coord. hack consisting in using pLoad to set phi0surf ;
344      update output of tutorial_global_oce_in_p (affected @ truncation level).
345    o Freshen up a bit hs94.1x64x5, notably:
346      remove rotationPeriod and tRef=5*0. (adjoint only), and add
347      exactConserv=.TRUE.
348    o pkg/generic_advdiff:
349      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
350      applies to files where Temperature & Salinity 2nd Order moments are used.
351    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
352      this uses a dynamically allocated internal state data structure
353      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
354      and requires a fortran 90 compiler
355    
356    checkpoint59q
357    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
358       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
359    o Refresh tutorial_global_oce_biogeo, notably:
360      - change bathymetry (put back seamounts in ACC, use hFacs)
361      - change EOS (POLY3 --> JMD95Z)
362      - use Bryan-Lewis vertical diffusivity
363      - use multidimensional advection
364      - remove old virtual virtual in dic pkg, now done through ptracer pkg
365      - change a couple of parameters in dic pkg
366    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
367    o pkg/obcs: change default to OBCSfixTopo = .true.,
368      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
369      - replace "debugMode" with "debugLevel .GE. debLevB"
370    o implementation of TAF directives for gchem,cfc,dic
371    o remove "exp5" (replaced by tutorial_deep_convection).
372    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
373      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
374      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
375      --> changes results in exp4, seaice_obcs
376    o tutorial_deep_convection :
377      update the set-up and increase resolution and domain size ; start
378      from pseudo initial conditions = output at t=120mn in order to see
379      something happening when running testreport.
380    o pkg/seaice: add os7mp as an advection scheme
381                  add check for advection schemes
382                  add a flag for restoring T and S underneath sea ice
383    o pkg/my82: add netcdf-support and diagnostics
384    o thsice pkg:
385      - Now hsMax limits snow height by turning it into ice following
386        flooding scheme (and now conserving energy)
387      - Slight rewriting of the formula in thsice_calc_thick.F
388      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
389      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
390    
391    checkpoint59p
392    o gchem / dic / cfc :
393      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
394      - add new parameter files: "data.dic" & "data.cfc" ;
395      - various re-arrangement in initialisation & header file ;
396      - fix tutorial_global_oce_biogeo for multi-threaded test.
397    o pkg/dic: test for "pickup_dic" file when restarting ;
398      if no pickup-file, can restart with a re-initialised pH (same as it did
399      before) providing pickupStrictlyMatch is set to False.
400    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
401      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
402    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
403      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
404    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
405     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
406       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
407    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
408       scheme to use for vorticty-term ;
409     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
410       (with default selectVortScheme, return to original discretisation)
411     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
412    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
413    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
414      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
415      also fix diagnostics VISCAHW & VISCA4W.
416    
417    checkpoint59o
418    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
419    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
420      move a few statemens out the main loop into separate loops
421    o pkg/shelfice:
422      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
423        (kg/m^2/s), does not break tests, because in verification/isomip,
424        rhoConstFresh=rhoConst (by accident)
425      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
426      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
427        new file model/src/seawater.F, so that they are available for all pkgs.
428      - convert potential temperature into in-situ temperature. This changes the
429        isomip tests => update tests
430    o add a flag writePickupAtEnd (default=true) to be able to suppress
431      writing a pickup at the last timestep
432    o tools/mpack-1.6 :
433      - disable automake (not working) and autoconf (not needed).
434      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
435        also cleaner with much less compilation warnings.
436    o pkg/profiles:
437      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
438      (for "less than 32 characters name" compiler requirement)
439    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
440      conditions that have a different sampling frequency than S/T/U/V obcs
441    o pkg/diagnostics (stats-diags):
442      - fix global Min/Max in case 1 processor get only empty tiles
443    o genmake2: replace (4 times)
444         make genmake_tc_1.o >> genmake_warnings 2>&1
445      with
446         COMM="$CC $CFLAGS -c genmake_tc_1.c"
447         echo $COMM >> genmake_warnings
448         $COMM >> genmake_warnings 2>&1
449      to make genmake2 always see the value of CC as specified in the optfile.
450    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
451      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
452      - modify verification advect_cs test to test SOM-advection on CS-grid.
453    o pkg/ctrl:
454      - Rewrite of ctrl_map_ini_ecco.F,
455        introducing a generic routine (ctrl_map_ini_gen.F).
456      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
457    
458    checkpoint59n
459    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
460      number in dedicate array "hdiag":
461      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
462        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
463      - many small changes (integer format) for large number of diagnostics
464      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
465        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
466    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
467      usingSphericalGrid, this allows to define the rotated grid coordinates
468      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
469      geographical coordinates according to the inverse of the rotation defined
470      by the Euler angles, so that Coriolis parameter and online-interpolation by
471      exf works with the geographical coordinates on XC/YC/XG/YG.
472      Naturally, this feature does not work with all packages, so some
473      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
474      profiles), because there the coordinates are assumed to be regular
475      spherical grid coordinates.
476    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
477      - introduce isopycnal diffusion coefficient control.
478    o tools/adjoint_options:
479      - additional control vector components.
480    o pkg/mnc: have mnc create marginally meaning full coordinate variables
481      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
482    o pkg/mypackage:
483      - add example of read/write pickup for state-var ;
484      - add entry points to the main code for state-vars diags & write-pickup.
485    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
486      transitions for useExfYearlyFields
487      - add new subroutine that determines the file to read from for
488        use*YearlyFields = .TRUE. and .FALSE.
489      - add a verification experiment to global_with_exf that tests
490        useExfYearlyFields with USE_EXF_INTERPOLATION defined
491    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
492      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
493      subroutines (which could be generated from a template, because they are
494      almost identical), for now they are included in obcs_prescribe_read.F for
495      simplicity
496    o pkg/exf:
497      - add a little more diagnostic to exf_interp_read (in analogy to
498        mds_read_field, can be turned off with debugLevel < debugLevA=1)
499      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
500        ugly but fast by unrolling short inner loops, inserting a unroll=8
501        directive in routine lagran, and splitting a loop and making do while the
502        outermost loop (the latter requires the intoduction of index arrays)
503    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
504    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
505      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
506    o verification/seaice_obcs: updated for restart test and latest options
507    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
508      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
509      for now this is only available for the C-grid code and also within
510      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
511    
512    checkpoint59m
513    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
514      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
515    o gad_som : fix flux output (& diagnostics) to have same units as other  
516      advection scheme fluxes (was previously multiplied by deltaT).  
517    o added verification/seaice_obcs both to test seaice open boundaries
518      and to provide an example matlab scrpt for generating them
519    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
520    o pkg/salt_plume: clean up salt_plume_frac.F to
521      remove redundancy in PlumeMethod 1 and 4
522    o pkg/kpp: added saltplume diagnostics
523    o pkg/obcs and pkg/seaice:
524      - do not set uice and vice to zero when OB*icefile are unspecified
525      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
526      - moved seaice tracer obcs after call to seaice_growth
527    o pkg/salt_plume: added various options for salt plume depth
528      criterion and for vertical distribution of the salt
529    
530    checkpoint59l
531    o pkg/ptracers: new version of ptracers pickup:
532      read meta file and write only fields which are needed to restart.
533      ( same logic as main pickup file ; also using pickupStrictlyMatch )
534    o pkg/seaice:
535      - add timescale for melting due to warm mixed layer as a means of
536        setting SEAICE_availHeatFrac more conveniently
537      - add a CPP-flag/runtime parameter check for flooding algorithm
538      - reformulated availHeat in seaice_growth.F to be independent of AREA
539    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
540      unit changes
541    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
542    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
543      SX vector computer.
544    o pkg/seaice:
545      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
546        seaice forcing fields can now be read only through pkg/exf
547      - removed some unused halos
548    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
549    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
550      or U/VICE from U/VWIND before computing U/VSTRESS
551    
552    checkpoint59k
553    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
554      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
555    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
556      all experiments pass when compile with un-initialised var. checking option.
557    o added pkg/salt_plume
558    o script to test restart (for now, in MITgcm_contrib/jmc_script)
559    o pkg/seaice: new read/write pickup version.
560      read meta file and write only fields which are needed to restart.
561      ( same logic as main pickup file ; also using pickupStrictlyMatch )
562    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
563    o lab_sea.hb87: modify the domain & update output.hb87.txt :
564      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
565      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
566      process. Fixed here by closing the domain at the Northern boundary.
567    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
568    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
569      a set of consecutive levels in/from a 3-D array.
570    o pkg/ptracers:
571      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
572      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
573    
574    checkpoint59j
575    o in pkgs: dic, obcs, offline, rbcs:
576      standard way to compute coeff. for time interpolation between 2 time reccords
577      which retains full precision (& make results less dependent on compiler).
578      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
579    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
580      packages instead of reading ice cover and wind speed separately
581    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
582     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
583      to allow to compile customized code before the update)
584    o cleaning-up:
585      - fix CPP instruction syntax in pkg/obcs
586      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
587        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
588      - fix some threads issue in IO parts.
589    o pkg/dic:
590      - add tons of "_d 0" (--> much better testreports !)
591       and then update outputs of tutorial_global_oce_biogeo
592    o pkg/mom_fluxform:
593      add a special version of momentum advection intended to conserve momentum
594      next to a bathymetry step or a coastline edge. (default = off = #undef)
595    o new read/write pickup version:
596      - for now, only implemented for main (mdsio) pickup file.
597      - write out only what is needed to restart; merge pickup_nh , pickup_ph
598        and main pickup together.
599      - read meta file; read only what is needed to restart; stop if a field
600        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
601        if it make sense (even if the restart is not perfect).
602      - if no meta file, assume that pickup to read corresponds exactly to
603        a pickup that would currently be written.
604      - read pickup written in the old format (until checkpoint59i) if it
605        recognizes an old meta file (no field-list).
606      - add a meta file in exp. which starts from a pickup: 2 cases:
607        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
608         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
609        b) a meta file describing the content of the associated pickup file
610         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
611    o pkg/mdsio & pkg/rw:
612      - new routine to read a meta file ; new set of routine to read
613        Multiple-fields file (with meta file).
614    o added open boundary conditions capability for seaice
615        HSNOW, HSALT, UICE, and VICE
616    
617    checkpoint59i
618    o adjoint:
619      * fix multiDimAdvection adjoint
620        (partial recomputation problem by TAF for fVerT(:,:,kDown)
621        and comlev1 size definition (maxpass vs. max. number of tracers)
622      * verification/global_ocean.90x45x15 adjoint now tests
623        NLFS and multiDimAdvection using DST3 (=30)
624      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
625    o pkg/kpp: add "_d 0" to real constant (if missing);
626      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
627      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
628    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
629      for internal parameters related to restart process (formerly from PARAMS.h)
630      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
631    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
632      as argument. (only atm2d & obcs write_pickup have not yet been updated)
633    o pkg/monitor:
634      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
635      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
636      - account for deep Atmosphere factor and density factor (anelastic)
637    o added open boundary conditions capability for seaice HEFF and AREA
638    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
639      thermodynamics
640      - requires a little reorganization, which affects the testreport results
641        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
642        so that now the conservative form is tested
643      - add a few comments
644    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
645    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
646    o add new diagnostics to seaice: advective, diffusive fluxes (only for
647      multidim-advection, for scheme 2 they are not filled) and transports,
648      thermodynamic growth rates
649    o change units of EmPmR (inside the code, + within coupling interface)
650      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
651      Affects results @ truncation level (cg2d match) and update output of
652       experiments: lab_sea(6), global_ocean.90x40x15(10),
653      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
654      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
655      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
656      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
657    
658    checkpoint59h
659    o pkg/exf:
660      - improve vectorization by moving if-statement out of loops in
661        exf_mapfields, exf_radiation
662      - exf_bulkformulae.F: introduce 2D fields and vectorize code
663    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
664    o testreport:
665      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
666        monitor & update offline_exf_seaice exp. output.
667      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
668    o pkg/seaice:
669      - bug fix in the evp solver: boundary conditions were affected be
670        masking of zMax/zMin (changes results)
671      - minor bug fix in boundary conditions in seaice_calc_strainrates
672        (changes results for no_slip)
673      - seaice_lsr.F: make interpolation of eta dependent on boundaries
674      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
675      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
676        stress formulation and no-slip boundary conditions
677    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
678      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
679    o pkg/seaice: a first HSALT time stepping equation has been checked in
680    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
681      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
682      without requiring DO-IF statements
683    o pkg/thsice:
684      use continuous power-law function for partition of energy between lateral
685      melting/freezing and thinning/thickening ; old code using step function
686      still available with #undef THSICE_FRACEN_POWERLAW
687      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
688    o testreport: change AD testing : check against results/output_adm.txt
689      using same scripts as for forward test.
690    
691    checkpoint59g
692    o adjoint testing: in preparation for changing testreport:
693      - output format: cost and grad written on separated lines
694      - ad output results in directory "results" (instead of "results_ad")
695    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
696    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
697    o pkg/ecco: allow user defined cost function contributions
698    o testreport:
699      Allow to choose (per experiment) the list of tested output variables
700       and the main variable (used to issue a pass/FAIL ) ;
701      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
702      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
703      Also modify printing of summary:
704       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
705       b) echo the list of tested variables in the individual summary.txt of
706          each experiment.
707    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
708      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
709      (but still depend on the tile decompostion of the domain).
710    o pkg/seaice: change a discretization detail to make the B-grid code
711      "more symmetric". This change is likely to remove all "ridges/leads" that
712      where quasi-aligned with the grid in B-grid solutions. It may also be
713      the solution to the stress coupling issues with the B-grid.
714    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
715      remove .cvsignore from input dir. (since testreport no longer run here).
716    o pkg/thsice:
717     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
718     - fix reshaping of sea-ice just after advection:
719       melt all the ice only if ice-volume is too small.
720     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
721       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
722     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
723    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
724      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
725    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
726      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
727      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
728      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
729      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
730      -> update output.txt
731    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
732     this affects truncation error: -> update output.txt of exp:
733      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
734      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
735    
736    checkpoint59f
737    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
738    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
739      a bounded range (in forward mode)
740    o pkg/ecco, ctrl, autodiff and mom_common:
741     internal parameter controls, completements of implementations
742    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
743    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
744      (not seem any difference in testing results).
745    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
746       at face corners.
747    o pkg/generic_advdiff:
748     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
749      loop range indices for computing vertical advection tendency
750      and do the calculation in the interior only (no overlap) ;
751      for now, only implemented for SOM advection (to save CPU time).
752     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
753    o exch2 adjoint
754      First set of changes:
755      - add exch2 hand-written adjoint templates
756      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
757        This will require cleanup in pkg/autodiff/*.F
758        (changed routines currently kept separate in verif. code/)
759      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
760        that used to hide exch2 or cubed-sphere specific code
761        (commented via 'cph-exch2')
762    o pkg/seaice
763      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
764    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
765       output of global_ocean.cs32x15.thsice .
766    
767    checkpoint59e
768    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
769      for B-grid vector (not yet tested) and C-grid vector (<- only used
770      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
771    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
772      (#ifdef ALLOW_SALT_PLUME)
773    o gather_2d/scatter_2d: removed halo regions
774    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
775      scheme and the corresponding test case (under front_relax dir). For now,
776      only available with Skew-flux form and not yet tested in realistic set-up.
777      adjoint: store directives updated, but gradient checks deteriorated,
778      so maybe GM/Redi adjoint is now broken.
779    o seaice adjoint
780      * add AREA, HEFF, HSNOW as control variable
781        (should not change lab_sea results)
782      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
783    o pkg/seaice:
784      * added computation of saltFlux in seaice_growth;
785        For time being, sea ice salinity is assumed constant
786        contribution of snow flooding to freshening of sea ice is neglected.
787        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
788        defaults to 0.0 in order to maintain backward compatibility.
789        Typical values for SEAICE_salinity are 4 to 10 g/kg.
790      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
791      * added SEAICE_availHeatFrac, which specifies fraction of surface level
792        heat content used to melt or grow ice
793      * commented out cap of HICE: it helps keep ice thinner
794      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
795      * applied OBCS T/S mask to HEFFM sea ice mask
796    
797    checkpoint59d
798    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
799     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
800     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
801    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
802     and change default value of parameter "GM_Small_Number";
803     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
804       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
805       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
806    o pkg/ecco: cost function when applying pkg/smooth to controls
807    o pkg/ctrl: add forcingPrecond run time parameter
808    o pkg/seaice:
809     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
810     - fix bug in metric terms of u-equation in LSR solver (implicit part),
811       changes verification/lab_sea
812     - rearrange implicit part of u-equation in LSR solver to make it easier to
813       read, understand, and debug. This causes changes at the truncation level.
814     - fix (serious) bug in the boundary conditions (sign error in the implicit
815       part) of the LSR solver. Changes all LSR results.
816     - fixed problem with HSNOW initialization to avoid thick snow when AREA
817       is initilized with small values - does not change lab_sea results.
818     - added HsnowFile initialization capability
819    o pkg/smooth: addition to model/src and pkg/ctrl so allow
820     initialization of pkg/smooth and application to control vector
821    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
822    o dependencies: pkg/profiles requires pkg/cal
823    o pkg/profiles:
824     - added option ALLOW_PROFILES_GENERICGRID
825         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
826         that interpolation information (grid points and coefficients) is provided
827         within the netcdf input files.
828         -> sample matlab scripts can be found in MITgcm_contrib/gael
829         that allow you to prepare netcdf input files.
830     - also modified: cleaner include statements, cleaner error print statements,
831       cleaner stops when error, and more tests of the netcdf input files consistency.
832    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
833    o pkg/seaice:
834     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
835       requires a new routine: seaice_diagnostics_fill.F
836     - make sure that seaice does not move if not forced (pressure replacement
837       method, Hibler and Ip, 1995), changes results
838     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
839     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
840       It is turned off by default (=-1.), because it changes the results.
841     - make it possible to read AREA from a file, too.
842    
843    checkpoint59c
844    o add S/R and diagnostics for oceanic mixed-layer depth
845    o move GMRedi call after all vertical mixing schemes (including KPP)
846    o pkg/thsice:
847     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
848      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
849    o pkg/obcs:
850     - bug fix for balance code
851    o pkg/seaice:
852      - allow values of SEAICE_elasticParm > 1
853      - add new parameter SEAICE_evpTauRelax as an alternative
854        to SEAICE_elasticParm
855      - make lsr boundary conditions free slip (by default), changes result
856      - add code for no slip boundary conditions for lsr
857      - set minimum of zeta to zero (and not 4e8) (changes results)
858      - add a cap on AREA after advecting AREA if seaice_growth is not called
859    o change calculation of Visbeck K:
860      - no longer depend on tapering scheme; instead, compute slope (limited
861        by GM_maxSlope). this is equivalent to what was comuted before with
862        clipping or linear tappering.
863      - fix vertical averaging (wrong by 1/2 level)
864      - leave the old version (but will not be maintained) within
865        #ifdef OLD_VISBECK_CALC / #endif
866      - update output of exp. ideal_2D_oce
867    o change error catch in calc_r_star to improve vectorization
868    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
869      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
870    o adjoint:
871      Re-organized adjoint checkpointing according to Matt Mazloff
872      (but with modifs/completions/cleanups)
873      Storing is now bundled into large arrays to optimized I/O
874      (and second step in cleanup of the_main_loop)
875    
876    checkpoint59b
877    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
878      - export/import (between ocean & coupler) fields needed for ocean DIC.
879    o pkg/seaice:
880      - get rid of three more exchanges seaice_calc_viscosities (required
881        different loop boundaries in seaice_lsr and seaice_ocean_stress)
882      - bug fix in seaice_ocean_stress (update of lab_sea required)
883      - reduce loop boundaries to necessary minimum also in seaice_evp
884      - go back to the old way of computing deltaC/Z as the adjoint likes that
885        better
886    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
887      passive tracer to an Age Tracer) + update output.txt
888    o pkg/exf:
889      - implement A-grid / C-grid selection for wind-stress input files.
890      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
891      for now, in exf_bulk_largeyeager04.F only :
892      - change implementation for case where windspeed + 2. components wind-stress
893        are read-in. AND use rhoConstFresh to convert evap.
894    o pkg/seaice:
895      - use correct EXCH_UV for wind-forcing (on A-grid).
896      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
897        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
898    o pkg/exf:
899      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
900      EXF_INTERPOLATION:
901      - merge global_with_exf/code version of exf_interp_read.F
902        to the main code ;
903      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
904        reading the file ; Important: This options needs to be defined to recover
905        previous code.
906        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
907      - no longer loose real*8 precision along the way when using exf_iprec=64.
908    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
909      - change discretisation of evp-solver in order to avoid another exchange
910        (changes lab_sea) and clean up a little
911      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
912        help the adjoint (this also changes the results slightly)
913      - add a few "_d 0" where they had been missing in seaice_evp.F
914      - cleaning up: remove unused seaice_calc_rhs.F
915    o pkg/exf: some cleaning-up:
916      - change various "constants" into runtime parameters
917      - cleaned-up Large&Yeager04 routine which should eventually
918        replace exf_bulkformulae.F (changed names of S/R and CPP)
919        and merged various ALLOW_ATM_WIND options
920     only used with thsice pkg (in thsice_get_exf.F):
921      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
922        which are used when useStabilityFct_overIce=TRUE (= the default)
923      - change default values of ice & snow emissivity and scale downward LW
924        by ice & snow emissivity.
925    o pkg/thsice:
926     fix few little problems, in thsice_calc_thickn.F:
927      - growth vertically (and not laterally) if iceFrac == iceMaskMax
928      - melt only laterally if hIce < hThinIce (as the comments say)
929      and in thsice_extend.F:
930      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
931      - start to form ice as soon as the minimum ice-volume is reachable.
932     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
933      and cpl_aim+ocn
934    o pkg/kpp
935     - move computation of surface related input fields to KPP into a new
936       subroutine kpp_forcing_surf.F
937     - remove wrong (within bi,bj loops) EXCH calls.
938     - little cleaning (add argument myThid in last position, cvs header ...)
939     - for now, fix conservation problem by exchanging KPPviscAz (may not
940       be the best fix)
941    o pkg/seaice
942     - check for inconsistent evp parameter/cpp-flag combination
943     - remove leftover errIO flat for obsolete name list error handling
944    o OpenAD
945     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
946    
947    checkpoint59a
948    o pkg/seaice: some parameter clarifications and a little bit of clean up
949    o pkg/thsice: rename run-time parameters:
950       himin       -> hIceMin
951       himin0      -> hThinIce
952       hihig       -> hThickIce
953       i0          -> i0swFrac
954       transCoef   -> bMeltCoef
955       frac_energy -> fracMelting
956      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
957       with default values (for now) that do not change the results.
958      remove old version of thsice vars advection in pkg/seaice.
959    o in FFIELDS.h:
960      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
961      - make pLoad & sIceLoad always available (but still only used if
962         ATMOSPHERIC_LOADING is #define).
963    o pkg/kpp: replaced _KPP_RL with _RL
964    o bug fixes for vertical diffusivity computations when both KPP and
965        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
966        are no longer updating the vertical diffusivity array
967        (passed as argument) but are (re-) setting those arrays.
968    o pkg/seaice: fix bug in evp solver, while doing that
969      - change (improve?) discretization of stress computations for both
970        cgrid-lsr and evp solver
971      - add a new routine to compute strain rates
972      - the above changes lab_sea results
973      - add no slip conditions for evp solver (off by default), lsr-version
974        may follow
975      - fix exchange for shear at Z-points (does not change lab_sea)
976      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
977        (to force the user to pick a time step since there is not "safe" way
978        of choosing it)
979      - add principal stress diagnostics
980      - rearrange fields for evp a little to avoid having to call a: too many
981        exchanges and b: exchanges for stress trensor components which we do
982        not have.
983      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
984        of evp, complete rewrite for lsr case (latter is does not yet work
985        in all cases)
986    o pkg/kpp: add code to have mixing in shelf ice caverns
987      - add myThid to all kpp routines (long overdue)
988    
989    checkpoint59
990    o pkg/exf:
991      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
992        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
993      - move exf header files from lower_case.h to UPPER_CASE.h ;
994        add missing cvs Header & Name
995      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
996      - add namelist param. selectStressGridPosition, exf_monFreq
997      - retire many _CLIM routines, and remove data.exf_clim
998        + params moved to data.exf
999        + climsst, climsss now handled by exf_set_gen, i.e.
1000          climss?period=0 refers to constant field,
1001          climss?period=-12 to monthly forcing
1002      - split up namelists in data.exf
1003    o pkg/seaice:
1004      - remove seaice_exch and seaice_exch_uv
1005      - remove superfluous exchange of theta
1006      - add myThid to seaice_budget_ocean/ice
1007      - add new interface for atmospheric wind forcing (C-grid only)
1008        + new routine
1009        + two new field (taux, tauy for stress over ice)
1010        + removed one global field (DAIRN) for C-grid case only
1011    o pkg/thsise
1012      - 2nd set of modifs for thsice adjoint in conjunction with exf
1013    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1014    
1015    checkpoint58y_post
1016    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1017      vertical diffusivity, similar to that in MOM4; turned on using
1018      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1019      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1020    o Added capability for 3D specification of background vertical diffusion
1021      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1022      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1023      "data" file that contains the 3D vertical diffusivity coefficients.
1024    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1025      - add code within pkg thsice to advect & diffuse sea-ice fields
1026      similar to (and will replace) what has been added in  seaice_advdiff.F,
1027      but: - conserving Mass, Heat & Salt.
1028           - better when using non-linear advection scheme (not yet fully tested)
1029           - can also be used in atmospheric set-up (for now, only the diffusion).
1030    
1031    checkpoint58x_post
1032    o IO option for global-file compact format:
1033      - add options when generating topology (utils/exch2/matlab-topology-generator)
1034      - add I/O capability (pkg/mdsio).
1035      - adapt utils/matlab/rdmds.m to read this format.
1036      for now long-line format not yet supported by pkg/mdsio (& exch2).
1037    o shelfice: add a few diagnostics
1038    
1039    checkpoint58w_post
1040    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1041      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1042      (and replace horiVertRatio in NH code).
1043      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1044                         and tutorial_plume_on_slope (sensitive to truncation)
1045    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1046      directly to drive seaice model (C-grid only)
1047    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1048     - reintroduce computation of wind from stress,
1049     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1050       mass points to avoid tau = 0
1051     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1052    o rdmnc.m: make it work with "global" files created with gluemnc
1053    o rdmnc.m : some improvements in dealing with singleton dimension
1054      (tested on all testreport mnc output files).
1055    o genmake2: disable pkg/profiles if netcdf test fails.
1056    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1057    o move call to cal_readparms up to make calendar parameters/variable available
1058      to all packages
1059    
1060    checkpoint58v_post
1061    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1062      useDynP_inEos_Zc tested.
1063    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1064    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1065      and portions thereof.  See read_cs.txt for description and examples.
1066    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1067      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1068      following the great-circle arc between those 2 points.
1069    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1070      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1071    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1072     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1073     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1074     - still needs work (not working with some options ; efficiency to improve)
1075       and serious testing.
1076     - use this scheme for temperature & salinity in 2 advection test exp.:
1077       advect_xy & advect_xz, respectively.
1078    
1079    checkpoint58u_post
1080    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1081    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1082    o testreport: add option "-skipdir" to skip some test.
1083    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1084      momentum calculation.
1085    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1086    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1087      remove checkpoint.F and the_correction_step.F (no longer used);
1088      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1089    o add option (linFSConserveTr) to correct for tracer source/sink due to
1090      Linear Free surface
1091    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1092    o pkg/thsice: fix reading mnc-pickups
1093    
1094    checkpoint58t_post
1095    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1096    o pkg/mdsio:
1097     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1098       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1099       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1100     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1101     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1102       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1103     - new S/R (to replace MDSWRITEMETA), which allows to write more
1104       informations (variable names, time ...) to meta files.
1105     - modify rdmds.m to give back the meta file content.
1106    o pkg/diagnostics: change vertical interpolation to be safer, and more
1107       flexible (define p-levels to interpolate to in data.diagnostics);
1108      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1109       diagnostic pointer.
1110    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1111    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1112    o fix multi-category seaice:
1113     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1114       SEAICE_MULTICATEGORY
1115     - fix short wave heat flux
1116    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1117       and allow to use EVP solver. Change forward lab_sea: test both EVP
1118       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1119    o Initial check-in of lab_sea adjoint
1120      (very similar to natl_box_adjoint/code_seaice)
1121      * used C-grid and EVP solver
1122      * used KPP, GM/Redi
1123      * uses inAdExact=.TRUE.
1124      * gradient checks fail for both ADM and TLM
1125        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1126        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1127        issue is related to forward mismatch between g77 an ifort
1128    o pkg/seaice: overhaul of thermodynamics
1129     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1130     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1131     - move a few global fields out of SEAICE.h into seaice_growth.F and
1132       make them 2D (FICE/QNETO/ ...)
1133     - remove FO (it is the same as QNETO)
1134     - introduce a few local fields to avoid modifying external fields such
1135       as atemp, etc.
1136    
1137    checkpoint58s_post
1138    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1139      changed exf_set_gen.F so that
1140        genperiod=0 means input file is one time-constant field and
1141        genperiod=-12 means input file contains 12 monthly means
1142    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1143      this affects truncation error ; generate new output file for exp. which
1144      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1145        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1146        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1147        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1148        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1149        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1150    o start implementation of deep-atmosphere and anelastic formulation
1151    o verification: remove 2nd copy of input files and use script "prepare_run"
1152      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1153    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1154    o profiles: fix for multithreaded case
1155    
1156    o diagnostics: rename few diags:
1157      s/'PRESSURE'/'RCENTER '/g
1158      s/'TICE    '/'oceFreez'/g
1159      s/'TAUX    '/'oceTAUX '/g
1160      s/'TAUY    '/'oceTAUY '/g
1161      s/'SWFLUX  '/'oceQsw  '/g
1162      s/DIFx/DFxE/g
1163      s/DIFy/DFyE/g
1164      and add few ocean-forcing diagnostics:
1165      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1166    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1167      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1168      as actual snow thickness.  It now refers everywhere to effective snow
1169      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1170    
1171    checkpoint58r_post
1172    o modifications to pkg/seaice/growth.F, which change results of
1173      lab_sea experiment: fixes pertain to melting snow over open water, to
1174      masking EVAP under sea ice, and to using the correct AREA variable for
1175      computations of EVAP, PRECIP, HSNOW, and GHEFF
1176    o add ability to read bathy, salt, and theta using MNC (off by def)
1177    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1178      both are turned off by default and do no change any results
1179    o seaice advection with pkg/thsice: a step toward the use of non-linear
1180      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1181    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1182      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1183      in natl_box (affects results @ truncation level: update output.txt)
1184    o multi-threading and IO:
1185      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1186      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1187        (needed to work with SingleCpuIO): tested in all verif. exp.
1188    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1189      affects the results (but none of the verification test uses this scheme).
1190    o Adding some pkg/diagnostics capability to pkg/seaice
1191      (will certainly be subject to changes)
1192    o ctrl: adding new control variables:
1193      lwflux, lwdown, evap, snowprecip, apressure, runoff
1194    
1195    checkpoint58q_post
1196    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1197      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1198      high_res_cube configuration by 4% on Columbia.
1199    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1200      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1201      dynamical allocation (seems to work in multi-threaded).
1202    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1203      single CPU io) so that TAF does not have to see EESUPPORT.h
1204    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1205    
1206    checkpoint58p_post
1207    o obcs: stop if obcs is used with useCDscheme = .true.
1208    o shelfice:
1209     - fix a sign error so that no slip at shelfice interface works
1210     - remove stop for combination non-hydrostatic code and shelfice. That does
1211       not mean, that the results are correct, but at least they are numerically
1212       stable
1213    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1214    o added adjoint exch routined for all exch*3d* routines
1215      and updated flow directives
1216    
1217    checkpoint58o_post
1218    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1219      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1220    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1221      and clean-up reading/writing of pickup files.
1222    o fix local version of read/write pickup (NH part) in rotating_tank/code
1223    o simplify EXCH interface:
1224     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1225     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1226    o added the regrid package
1227    o shelfice:
1228     - add a simple boundary layer scheme to reduce noise
1229     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1230    
1231    checkpoint58n_post
1232    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1233       local variable (not in common block).
1234    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1235      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1236      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1237        to work with SingleCpuIO.
1238    o add "_d 0" to real constant of pkg/cfc subroutines ;
1239       update exp. cfc_exemple & tutorial_cfc_offline output files.
1240    o multi-threading and IO:
1241      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1242        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1243      - barrier before and after reading.
1244      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1245      - avoid using MDS_WRITELOCAL for LAND pkg output.
1246      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1247        common-block variables ; Allows multi-threading with master-thread IO.
1248    o change default MAX_NO_THREADS from 32 to 4 ;
1249      and stop cleanly when MAX_NO_THREADS is too small.
1250    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1251    
1252    checkpoint58m_post
1253    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1254       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1255    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1256       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1257       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1258    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1259        add MITgcm_tutorials (= code + all the tutorials)
1260    o ecco, option to compute cost for total ssh (mean+anom)
1261    o consistent with addition of ptracer and ssh in pkg/profiles
1262    o profiles: adding ptracer and ssh
1263    o testreport: change multi-test output-file name
1264      (from output.txt.{name} to output.{name}.txt)
1265    o profiles: now ok for mutli-tiles case
1266    o seaice: add 4 parameters for different advection schemes for area,
1267      (effective) seaice thickness, enthalphy, and snow height. Their default
1268      is the standard parameter SEAICEadvScheme
1269    o calc_gw:
1270     - add cosFacU in zonal viscous flux (harmonic.visc.).
1271     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1272       of tutorial_plume_on_slope.
1273    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1274    o calc_gw: true flux-form, account for horizontal grid spacing.
1275      update rotating_tank results, but not plume_on_slope (affected at
1276      truncation level, 11 digits).
1277    
1278    checkpoint58l_post
1279    o calc_gw:
1280     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1281     - remove side-drag for now (need to fix it); update plume_on_slope results.
1282     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1283    o commit code to make SST/SSS weights spatially variable
1284      (based on either variable in-situ or variable initial T/S weights)
1285    o pkg/ecco:
1286      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1287        now based on horizontally varying weights wthetaLev, wsaltLev
1288      * cost_averagesflags now returns year indices in addition to day, month
1289      * sflux balance is performed on annual basis
1290        (sflxumm, sfluxmm2, bal_sfluxmm)
1291      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1292        including separate counting and multipliers
1293    o pkg/rbcs
1294      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1295    
1296    checkpoint58k_post
1297    o testreport:
1298     - always build in dir. "build" (if not there, mkdir build instead of building
1299       & running in input)
1300     - run in dir run (if it exists), in build otherwise.
1301     - call prepare_run (if input/prepare_run exists)
1302     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1303    o pkg/exf modifications to interpolation and rotation routines for more
1304       reasonable treatment of North Pole singularity: for tracers North Pole
1305       value is set to northernmost zonal-mean value, for zonal velocity it is
1306       set to zero, and for meridional velocity it is set to northernmost value.
1307    o pkg/exf/exf_check_range.F
1308     - add tile index to diagnostics and move stop statement to the very
1309       end of the routine.
1310    o pkg/diagnostics: (diagnostics_main_init.F)
1311      define title of isomorphic variables according to the current config.
1312    o pkg/thsice with pkg/seaice dynamics:
1313    - fix domain of computation (interior only, required for exf) and do exchanges
1314    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1315    o towards a standard way of dealing with multi-threading in MONITOR
1316      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1317    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1318       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1319    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1320    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1321    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1322       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1323    o tracer advection:
1324     - clean-up and simplify calc_common_factors.F
1325     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1326       advection subroutine (but still not used within DST advection S/R)
1327    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1328    
1329    checkpoint58j_post
1330    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1331      from file (collects calls previously in FORWARD_STEP)
1332    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1333    o adjoint store dir. adjusted accordingly
1334    o genmake2
1335      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1336    
1337    checkpoint58i_post
1338    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1339      on wind stress (SEAICEstressFactor defaults to 1.)
1340    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1341      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1342    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1343      on CS-grid: no longer loosing mass.
1344    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1345    o pkg/ggl90: fix sloppy output and fix a bug
1346    o pkg/seaice: added SEAICEuseEVPpickup parameter
1347      - Set to false in order to start EVP solver with
1348        non-EVP pickup files when using SEAICEuseEVP
1349      - fix sign error in diffusion in seaice_calc_rhs
1350    
1351    checkpoint58h_post
1352    * Modifications for bottom topography control
1353      o replace hFacC by _hFacC at various places
1354      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1355      o add non-self-adjoint cg2d_nsa
1356      o update autodiff support routines
1357      o re-initialise hfac after ctrl_depth_ini
1358      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1359    * Adding verification for 5x5 box (4-layer) bottom topography control
1360    
1361    checkpoint58g_post
1362    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1363       used for mean seasonal cycle, mean diurnal cycle); add an example
1364       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1365    o pkg/ggl90:
1366      - add parameter (minimum surface kinetic energy)
1367      - fix bug (avoiding division by zero)
1368    o couple pkg/thsice to pkg/seaice:
1369      - modify advection in seaice to accomodate new scalar fields to be advected
1370      - only muliDimAdection scheme work with seaice/thsice
1371      - mapping of thsice-variables to seaice-variables, back and forth
1372      - does not break the verification experiments, but does not give the
1373        desired results either
1374    o pkg/seaice
1375      - make (default) second order advection a bit less confusing?
1376    
1377    checkpoint58f_post
1378    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1379      to pkg/seaice):
1380      - new routines thsice_map_exf and thsice_get_exf provide the interface
1381      - add an additional formal parameter to thsice_solve4temp
1382    o pkg/exf:
1383      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1384      - correct Stefan-Boltzmann constant
1385      - new parameter for longwave surface emittance
1386      - separate some stuff from exf_bulkformulae into new routines  
1387        exf_radiation, exf_wind
1388      - add new parameters and constants: longwave emissivity for ocean, ice
1389        and snow, evaporation parameters over ice
1390      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1391        either wind from stress or stress from wind
1392    o pkg/thSIce:
1393    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1394    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1395       and THSICE_CALC_THICKN
1396    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1397    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1398      to make debugging easier.
1399    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1400    o pkg/bulk_force:
1401      - clean-up comments and parameters ;
1402      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1403    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1404      generate new output for test-experiment: aim.5l_cs.thSI
1405    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1406      testreport accordingly
1407    
1408    checkpoint58e_post
1409    o SEAICE_CGRID adjoint done
1410    o R_STAR adjoint implemented.
1411      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1412      * need to sort out init. of h0facc, etc.
1413    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1414      to be able to use it in pure forward.
1415    
1416    checkpoint58d_post
1417    o upgrade simple test-experiment to tutorial example:
1418     step.1: duplicate the experiment and (step.2) will remove the old copy.
1419      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1420      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1421      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1422      tutorial_global_oce_biogeo    <- copy of dic_example
1423      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1424      tutorial_plume_on_slope       <- copy of plume_on_slope
1425      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1426      tutorial_global_oce_optim     <- empty for now (David ?)
1427      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1428     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1429    o correct a sign problem in cost_scat.F
1430    o obcs and ptracers: fix boundary conditions for advections schemes
1431      with larger stencil
1432    o thsice adjoint: start
1433    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1434      completeness
1435    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1436      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1437    o ptracers adjoint:
1438      * avoid extensive recomputatations
1439      * fix missing re-init. of gptr (missed by TAF)
1440    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1441      me to turn off the excessive output to STDOUT that this package produces
1442    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1443      and add those terms in Vector-Invariant formulation.
1444    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1445      if the control period (xx_hfluxperiod etc) is 0
1446    o in profiles pkg, clean routines and fix details
1447    o in ecco pkg, reading ssh data:
1448      fix problem in case the model does not start at iter0=0
1449    o fix mnc-pickup/restart for ptracers
1450    o new package prifiles:
1451      code to compute profile-based cost by Gael Forget
1452      (modifs in ecco, ctrl, autodiff)
1453    o Benign bug fix in initialization (spotted by M. Mazloff) of
1454      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1455    
1456    checkpoint58c_post
1457    o adjoint: finish NLFS adjoint and provide reference output in
1458      verification/global_ocean.90x40x15/results_ad_nlfs
1459    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1460      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1461      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1462      with SEAICE_CGRID defined.
1463    o move calendarDumps from "data" to "data.cal" and clean-up the code
1464      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1465    o add useEXF & useCAL flags (for now, set in hard-coded way)
1466    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1467      (were missing in NH mode, and wrong in quasihydrostatic mode).
1468      waiting for Chris updated version of calc_gw to add those CALLs.
1469    o fix bug in quasihydrostatic S/R ;
1470      add a test for this option: global_ocean.90x40x15.qshyd
1471    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1472      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1473    o add on/off flag useOffLine for package OFFLINE
1474    o seaice:
1475      - modify advection so that it works also on the C-grid
1476      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1477        problem in multi-tile runs with C-grid
1478      - add flags for clipping ice velocities and/or masking solver forcing
1479      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1480        C-grid solver
1481      - added a few comments to seaice_diffusion.F
1482      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1483        are now exclusive)
1484      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1485        required re-ordering the code a little:
1486       + make DAIRN global variable (defined in SEAICE)
1487       + move computation of the viscosities eta and zeta into a new separate
1488         routine (because I need to recompute them in seaice_ocean_stress.F)
1489    
1490    checkpoint58b_post
1491    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1492      update output.txt of exp. aim.5l_cs.thSI
1493    o various mnc cleanups and improvements:
1494      + shrink lookup tables by factor of ~4
1495      + better error reporting when running out of lookup space
1496      + able to handle longer path/file names (up to 500 chars)
1497    o adjoint:
1498      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1499      - TBD: "hidden" mom_vecinv recomp. in dynamics
1500    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1501     (allow to differentiate between forcing components using new integer flags:
1502      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1503     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1504    o ecco
1505      - enable trend removal from SSH anomaly obs.
1506    o adjoint
1507      - a fix for PmEpR when #undef EXACT_CONSERV
1508      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1509      - try to fix "hidden" recomp. in forward_step for NLFS
1510        (NLFS seems broken sometimes after I checked it in)
1511    o seaice:
1512     - add c-grid version of the dynamic solver:
1513       + three new routines that are the c-grid substitute lsr, dynsolver
1514         and ostres
1515       + put a few fields that were local to dynsolver into global common
1516         blocks, so that I can move the computation of stresses etc into
1517         seaice_lsr (saves coding but may break the adjoint).
1518     - replace more hardwired parameters by runtime parameters
1519     - add ice masks that mask the rhs of the implicit solvers where there
1520       is no ice (commented out in seaice_dynsolver, because i am not sure
1521       if this works properly), eventually this should replace the clipping
1522       of ice velocities in seaice_dynsolver to +/-40cm/s.
1523    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1524      include it only where its needed
1525    o move balancing of fluxes before the call of external_forcing_surf
1526    o seaice:
1527      - correct units of turning angles (now they are really in degrees)
1528      - move computation of GWATX/Y out of main routine into dynsolver
1529      - initialize GWATX/Y in seaice_init
1530    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1531      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1532    o seaice: add runtime flags for turning angles (default to zero)
1533    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1534      and trend from exf forcing and ctrl control adjustments
1535    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1536      (since checkpoint57x_post)
1537    o change the default rotation period to 86164.s = the Earth rotation
1538    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1539      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1540    o seaice advection: add code for choosing between the default (2nd order
1541      central differences) and multiDim advection schemes provided by
1542      pkg/generic_advdiff
1543    o seaice:
1544      - removed all references to SEAICE_GRID.h fields from
1545        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1546        (cubed-sphere configuration will change a little)
1547      - grid computations in seaice_init are obsolete now.
1548      - cleaned up code a little so that is easier to read (hopefully).
1549      - added new (better?) discretizations of default advection and diffusion
1550        (turn on with SEAICEuseFluxForm)
1551      - replace 1 in 3d global fields by kSurface in growth.F
1552      
1553    checkpoint58a_post
1554    o seaice:
1555      - bug fix in advect.F
1556    o shelfice:
1557      - separate shelfice load anomaly from pload (breaks with time
1558        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1559        Its default is 0., but it may be computed more cleverly from (unknown)
1560        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1561        done offline. A good approximation of the pressure load anomaly is
1562        necessary to avoid large initial adjustment processes underneath
1563        deep-reaching shelfice.
1564      - small fix in ISOMIP shelfice_thermodynamics
1565      - add more sophisticated thermodynamics of Hellmer (1989), this is
1566        now the default
1567      - give a few constants more intuitive names
1568    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1569      if bulk formulae are used in long integration (especially EmPmR). Turn
1570      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1571      if balancePrintMean, the imbalance that is substracted is printed to
1572      STDOUT.
1573    o fix bug (typo) in obcs_apply_eta.F
1574    o add a new package shelfice which enables us to model the circulation
1575      underneath shelf-ice with draughts of hundreds of meters.
1576     - works
1577     - to do: + include improved thermodynamics
1578              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1579                instead of new field kTopC
1580              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1581                instead of new field R_shelfIce and new code in ini_depth.F
1582                and ini_mask_etc.F?
1583              + adjust vertical mixing schemes?
1584    o seaice pkg:
1585     - add a cpp-flag to include a simple formula for a salinity dependent
1586       freezing point of sea water at the surface
1587     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1588       meridional stresses are now different (and hopefully correct)
1589    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1590       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1591       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1592    o pkg/diagnostics: add options and parameters for regional-statistics
1593       diagnostics ; define regions by reading a region-mask from a file
1594       (might add other options later)
1595    o pkg/bulk_force:
1596     - add option and parameters to use AIM surface-flux formulae.
1597     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1598       others forcing fields (defined in PARM05, parameter file "data") are loaded
1599       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1600     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1601     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1602     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1603       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1604     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1605    
1606    checkpoint58
1607    o add "--embed-source" option to genmake2 which, when the supporting
1608      tools can be compiled (as determined by genmake2) will turn on the
1609      embed_files package which then embeds the entire MITgcm source code
1610      (*.[fFhc] + Makefile) used for the build within the executable
1611      - requested by CNH but off by default
1612      - adds a paltry <9MB to the mitgcmuv executable in most cases
1613      - only writes the output when useEMBEDSRC in eedata is true
1614    o clean up 3-dim. relaxation codes:
1615      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1616      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1617      * Thanks to Tom Haine for testing!
1618    
1619    checkpoint57z_post
1620    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1621      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1622    o fix the pickup behavior for obcs in combination with ptracers
1623    o fix a bug in ptracers_external_fields_load
1624    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1625      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1626    o transfered surface NH pressure to eta field (if exactConserv).
1627    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1628         and update lab_sea output.txt file.
1629    o completing 3-dim. relaxation code: additional term
1630         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1631      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1632      * At compile time, in "EXF_OPTIONS.h" set
1633          #define  ALLOW_CLIMTEMP_RELAXATION
1634          #define  ALLOW_CLIMSALT_RELAXATION
1635      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1636          tauThetaClimRelax3Dim = 15552000.0,
1637          tauSaltClimRelax3Dim  = 15552000.0,
1638      * 3 cases:
1639          1) Use a constant-in-time 3-dim. field
1640          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1641          3) Real-time relax. to time-evolving prescribed field
1642    o Adding Laplacian-type smoothness constraint on
1643      initial and boundary (forcing) controls (ic, bc)
1644      * enable at compile-time via
1645        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1646      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1647      * Absolute scale somewhat unclear so far
1648      * no area weighting was included since no other cost term does so far
1649    
1650    checkpoint57y_post
1651    First step for a NLFS adjoint
1652    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1653    o new init. routines for calc_r_star, calc_surf_dr
1654    o still need to deal with ini_masks_etc
1655    o testreport seemed happy
1656    checkpoint57y_pre
1657    
1658    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1659    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1660    o add new offset feature to offline pkg (plus minor cleanup)
1661    o cfc fixes for final year of integration
1662    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1663      be in GCHEM_OPTIONS).
1664    
1665    checkpoint57x_post
1666    o fix testreport Pb in multiple test experiment.
1667    o cleanup our namelist syntax in verification:
1668      - make it more F95 standards compliant (some work still needed)
1669      - allows the vast majority of our tests to work with gfortran
1670    o Non-Hydrostatic:
1671     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1672     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1673    o Allow to apply AB on T,S rather than on AB(gT,gS):
1674     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1675     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1676       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1677     - need a "clever" read_pickup to restart from the other AB formulation
1678    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1679    o remove some unused variables (reduces number of compiler warnings)
1680    o adjoint
1681      * Disable useVariableViscosity for adjoint for time being
1682        (there are a number of extensive recomputations)
1683      * Initialize certain variables needed for adjoint
1684    
1685    checkpoint57w_post
1686    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1687                 fix the singleCpuIO RS version of MDSWRITEFIELD
1688       and add a WARNING if using globalFiles=T with multi-processors.
1689    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1690      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1691    o tracer advection scheme:
1692      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1693       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1694       was not very convenient).
1695      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1696       (further tests needed for the implicit DST & Flux-Limiter schemes).
1697    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1698      and sRef for convenience, handy, when you want to initialize
1699      ptracers in a large domain with a constant non-zero value. Also,
1700      untangle ptracers_init.F a little.
1701    
1702    checkpoint57v_post
1703    o change dome exp. to use variable viscosity in side-drag terms.
1704    o remove all the files from the cfc_offline test since they are now
1705      incorporated into tutorial_cfc_offline which has been producing
1706      identical results for a few days of testing
1707    o add new parameter: sideDragFactor to enable half-slip-side BC
1708      and change side-drag S/R to use viscosity from mom_calc_visc
1709      (can switch back by setting sideDragFactor=0.); affects results at
1710      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1711       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1712    o vorticity & strain are now computed without masking, to account for
1713      no-slip-side BC in variable viscosity calculation ; mask is applied
1714      anyway later on, before computing advection/coriolis terms.
1715    o modify exp4 to test new obcs support for reading from external files
1716      and for passive tracers
1717    o fix behavior of ptracers_monitor when monitor output is written to a
1718      netcdf-file; still not independent of monitor.F (writes in the same
1719      file).
1720    o change default value of tRef (put a uniform, meaningful value for ocean
1721      & atmos) and initialize sRef (was missing, as Martin mentioned).
1722    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1723      to be proportional to enstrophy dissipation length.  Thus,
1724       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1725      This is now consistent with Smagorinsky and with the manual.
1726    
1727    checkpoint57u_post
1728    o OBCS and PTRACERS: add open boundary support for passive tracers
1729      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1730        OB-values from file; this is not different from the way theta and salinity
1731        are treated
1732      - however, Orlanski-radiation conditions are not supported, and the model
1733        will stop if you use pTracers and Orlanski at the same time.
1734      - beefed up the rountine obcs_external_fields_load: now only those open
1735        boundary values are overwritten with values from files for which there
1736        are really files, otherwise the OB-fields remain untouched. This makes
1737        it possible to use different OBs at different ends of the domain (as
1738        with EXF)
1739    o reduce number of exch calls in shap_filt (s2).
1740    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1741      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1742    
1743    checkpoint57t_post
1744    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1745    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1746      same truncation, independent of the face number: affects affects several
1747      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1748    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1749      note that biharmonic viscosity + no-slip was not tested in any experiment.
1750    o fix bug in non-linear free-surf side-drag ; generate new output for
1751      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1752    o make mnc honor the writeBinaryPrec flag for most kinds of output
1753    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1754    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1755      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1756    o add brackets in multi-terms sum to get same truncation, independent of
1757      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1758      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1759    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1760      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1761      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1762      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1763      Suggested values of viscosity parameters found in mom_calc_visc.
1764      Many new viscosity diagnostics available.
1765    
1766    checkpoint57s_post
1767    o Add clearing-house for viscosity calculations, mom_calc_visc and
1768      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1769      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1770      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1771      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1772      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1773      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1774      ViscAhStrain and viscAhTension are now retired.
1775    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1776    o In response to JMC's bug report, genmake2 now ignores any soft-links
1777      that it finds in the *current* directory when searching for files.
1778      Soft-links found in any other source directories will still work as
1779      they did before.
1780    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1781      a C routine to unlimit the stack size
1782    o mnc-ify pkg/aim snapshot vars
1783    o mnc-ify pkg/land as requested by Daniel
1784    o various changes to mnc including:
1785      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1786      - output can now be grouped so that all files within a group
1787          change the ITER portion of their names in lock-step together
1788      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1789          and works with both EXCH1 and EXCH2 (but needs more testing)
1790      - writing works for all verification test cases w/ g77 on Linux
1791    
1792    checkpoint57r_post
1793    o make MNC variable initialization happen earlier
1794    o add diagnostics for (almost) each term of the momentum Eq.
1795    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1796    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1797    o remove MINIMAL_TAVE_OUTPUT option ;
1798      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1799    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1800      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1801    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1802    o add time-dependent SST, SSS control
1803    o cost terms in ecco/ modularized (new cost_generic.F)
1804    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1805    o new infrastructure for seaice model vs. obs misfits in seaice/
1806      * driver from the_main_loop.F is seaice_cost_driver.F
1807      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1808      * gradient check in Exp. 6a of natl_box_adjoint/
1809    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1810      (see README file)
1811    
1812    checkpoint57q_post
1813    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1814    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1815      - bug was reported by Jean-Michel and Ian Fenty
1816    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1817      update exp. cpl_aim+ocn output.
1818    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1819      Needed for high-res. runs with large global files
1820      to be able to limit tapelev size
1821    o Changed some tests for adjoint:
1822      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1823      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1824      * global_ocean.90x40x15/ back to default 3-level checkpointing
1825    o Modifications to enable scripted COMMON to MODULE conversion
1826      * verification/OpenAD/code/ has necessary scripts and description;
1827      * converts, compiles and runs successfully;
1828    
1829    checkpoint57p_post
1830    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1831    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1832      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1833    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1834    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1835      (was already the case for dissipation with mom_vecinv,
1836       and also the case for grad.PhiHyd when staggered-timeStep)
1837      This will allow to put dissipation out-off the AB time-stepping.
1838     Unfortunately, affects truncation error. Update output of exp. that "fails"
1839      (cg2d matching number) and leave the others for later: front_relax(10),
1840      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1841      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1842    
1843    checkpoint57o_post
1844    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1845      (2) its ready to be documented during the 20050801 DocFest
1846    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1847      for ideal_2D_oce and lab_sea on linux_ia32_g77
1848    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1849      in global1x1_tot/code_seaice_adj to access indices 32, 33
1850      (worth another tag)
1851    
1852    checkpoint57n_post
1853    o adding precip control xx_precip 32
1854    o adding swflux control xx_swflux 33
1855    o Replacing 10 forcing penalty cost routines by 1 generic.
1856    o Implementing partitioning in time-mean and variable adjustment
1857      for atmos. state.
1858    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1859  o in natl_box_adjoint:  o in natl_box_adjoint:
1860    * updated: results_bulk/    * updated exp 1 to 10
1861    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1862    o updated global1x1/*_seaice_adj/
1863      to incorporate latest changes
1864    o enable useSingleCpuIO for mdsio vector routines
1865      (applies in particular to tapelev I/O)
1866    o removed inefficient K-loop in all active_file*control*.F
1867    
1868  checkpoint57m_post  checkpoint57m_post
1869  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2446  o add two new packages
2446    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2447    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2448      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2449      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2450  o add offline package  o add offline package
2451  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2452    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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