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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1080 by mlosch, Thu Mar 19 11:45:36 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      Major overhaul of the LSOR solver: change discretization from original
9      finite differences to finite volume. The old routine is still in the
10      file seaice_lsr.F and can be turned on with the CPP-flag
11      SEAICE_OLD_AND_BAD_DISCRETIZATION
12      Along with this change, the discretization of the strain rates is changed.
13      The same flag turns on the old discretization in seaice_calc_strainrates.F
14      All verification experiments with seaice are affected (except for
15      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
16      results by setting the above flag.
17      Further changes involve changes in defaults:
18      - ALLOW_FLOODING is defined and turned on by default
19      - SEAICE_advSnow = .true. is now the default
20      - SEAICE_advSalt = .true. is now the default
21      - SEAICE_advAge  = .true. is now the default
22      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
23        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
24      - seaice_growth: replace computation of UG by a simple copy from wspeed
25    
26    checkpoint61k
27    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
28      seaice_lsr: fixed a few metric terms,
29                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
30                  add more debugging diagnostics
31      seaice_evp: removed superfluous many metric terms of FV discretization
32                  of stress divergence
33                  affects lab_sea, lab_sea.hb87
34      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
35                  of stress divergence for non-evp solver
36                  (this part is not tested anywhere)
37      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
38                  they were effectively only half slip
39                  affects lab_sea.hb87
40      updated all relevant verification experiments
41    
42    checkpoint61j
43    o pkg/seaice: turn a few hard wired parameters into run time parameters
44    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
45      time in seconds as promised by the usints in seaice_monitor and exf_monitor
46    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
47      that are not cubed-sphere grids
48    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
49    o pkg/ctrl:
50      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
51    o non-hydrostatic (calc_gw.F):
52      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
53      update output of exp. global_ocean.cs32x15.viscA4
54    o remove backward compatibility for thetaMin,phiMin
55      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
56    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
57      interpolated wind field not only for curvilineargrid=.true., but also
58      for a rotated grid (rotateGrid=.true.)
59    o pkg/exf: add capability to bypass interpolation for runoff
60      by setting yet another CPP-flag
61    o eesupp/src, B-grid exchange:
62      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
63    o autodiff
64      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
65      allows to switch to single-prec common blocks;
66      corresponding switch occurs in tamc.h, integer isbyte
67      TAF store directivs "byte" and "kind" seem equivalent;
68      Most tamc.h have been updated correspondingly.
69    
70    checkpoint61i
71    o autodiff:
72      fix autodiff_sore/_restore indices for obcs
73      (spotted by I. Hoteit, M. Mazloff)
74    o pkg/autodiff, pkg/ctrl:
75      Add flag to reduce all tapelev I/O to single-prec.
76      In data.ctrl set
77        doSinglePrecTapelev = .TRUE.
78    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
79      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
80    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
81      real fresh water flux (not yet)
82    o pkg/mdsio & rw:
83     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
84     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
85    o pkg/flt:
86     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
87       init_fixed & ini_varia.
88     - clean-up & simplify linear interpolation S/R:
89       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
90     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
91     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
92     - add vert. coordinate & horiz. indices to output files.
93     - change vertical position in initial condition, from index to depth [m].
94     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
95       (easier to get to a curvilinear grid) ; delX,delY no longer used.
96    o pkg/ggl90: a few modifications:
97     - fix bottom boundary condition, and interpolation of KappaE
98       near top and bottom
99     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
100     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
101     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
102    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
103      (maintain temporary backward compatibility, until next checkpoint)
104    
105    checkpoint61h
106    o pkg/diagnostics with "periodic averaging diagnostics":
107      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
108    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
109    o pkg/obcs: fix loop ranges for balancing code
110    o pkg/flt:
111     - improve criteria for finding which tile owns a float.
112     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
113    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
114      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
115      with ocean biogeo)
116    o pkg/flt:
117     - do some cleaning and fix the restart ;
118     - add output.txt in flt_example/results to get this pkg tested.
119    o genmake2: add an EXTENDED_SRC option and flag.
120       for now, cannot be turned on on command line (only through genmake_local)
121    o pkg/mdsio: read/write vector:
122     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
123     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
124       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
125     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
126      (drop to 4 digits matching for grad). But this test does not look very
127      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
128    
129    checkpoint61g
130    o pkg/flt:
131      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
132       + make OPTIONS file more standard.
133      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
134      - fix _BYTESWAPIO CPP-Flag
135      - standard reading of file-parameter "data.flt"
136      - fix argument list of S/R FLT_RESTART
137      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
138    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
139    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
140      a still unfixed compiler/optimization bug
141    
142    checkpoint61f
143    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
144      update results of global_ocean.cs32x15.icedyn test.
145    o move getcon.F from model/src to pkg/fizhi.
146    o pkg/exf: add parameter for extrapolation of temp up to the surface
147       and option to prevent negative evap (in bulk_largeyeager04 only).
148    o Prather Advection scheme: fix tracer conservation for divergent flow
149      (e.g., when using NonLin Free-Surface).
150    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
151    o gmredi (Visbeck-variable-K):
152     - add more parameters to Visbeck-variable-K.
153     - use a 5 points average for dSigmaR in Visbeck-K calculation
154       (more "homogenous": same stencil and same weights as in dSigmaH)
155     - update output of ideal_2D_oce experiment.
156    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
157      (#undef REAL4_IS_SLOW)
158     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
159       coordinate variable
160     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
161       (surface forcing fields), removes some of the functionality
162     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
163     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
164       probably not all: copy _RS surface flux fields to RL field before
165       calling DIAGNOSTICS_FILL
166     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
167       real*4 (CALL EXCH_*_RS) versions.
168     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
169       (generate new output).
170    
171    checkpoint61e
172    o gmredi (Visbeck-variable-K):
173      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
174      - change computation of Visbeck-K where Slope > Smax :        
175        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
176        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
177    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
178      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
179    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
180    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
181      does not become too large (to avoid precision problems in implicit-diffusion
182      solver); update ideal_2D_oce output.
183    o pkg ggl90:
184      - in ggl90_cal.F: compute only one set of visc/diff, used to
185        step forward TKE/T/S/momentum
186      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
187        have Prandlt =1)
188    o gmredi (fm07):
189      - add lower limit on Transition layer thickness + lower limit on 1/lambda
190      - allow to set few more params from data.gmredi
191    o pkg ggl90:
192          - add missing sqrt(2) factor in computation of mixing length
193            scale in ggl90_calc.F
194            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
195    
196    checkpoint61d
197    o adjoint modifs
198      - adapt to new field rhoInSitu
199      - allow to revert from StoreDynVars2D, StoreDynVars3D
200        to individual fields
201        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
202    o store 3-D (in-situ) density in commom block (DYNVARS.h)
203     - save 1 rho computation.
204     - no longer modify T & S inland when using down_slope pkg.
205    o gad_som : allow to switch to SOM advection for T & S without corresponding
206      pickup files (using new S/R: MDS_CHECK4FILE).
207    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
208      (for useSingleCpuIO to work in multi-threaded)
209    o pkg/shelfice:
210     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
211       with SHELFICEtopoFile in data.shelfice
212     - move code for reading ice shelf topography and modifying hFacC into separate
213       subroutines of the shelfice package
214     - separate initialisation of "fixed" and "variable" variables
215     - kTopC is not (yet) replaced by kSurfC, although this is possible
216    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
217    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
218      and rename:
219      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
220      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
221    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
222    
223    checkpoint61c
224    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
225      to add mass source/sink of fluid in the interior (3-D generalisation
226      of oceanic real-fresh water flux).
227    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
228    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
229    o new pkg: down_slope
230      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
231      - presently, modify T & S inland (dwnslp_calc_rho.F).
232        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
233      - implementation for ocean in P-coords not tested.
234      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
235    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
236      (to facilitate conversion of oceanic pkg to p-coordinate).
237    o change FIND_RHO to FIND_RHO_2D :
238      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
239    o new pkg: cheapaml
240    
241    checkpoint61b
242    o exch2:
243      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
244      - no longer depend on the order sequence (N,S,E,W).
245      - 3rd exchange no longer needed (tested with 24 tiles).
246      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
247      - exch_UV_A-grid readily available (but not yet tested).
248      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
249      (both are no longer needed) in exch_uv: no effect in forward run; but
250       get truncation error differences with adjoint exch.
251    o exch2:
252     - change index-bounds storage (moved from target to local tile,
253       more intuitive this way) ; rename/remove some variables.
254     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
255    
256    checkpoint61a
257    o exch2/matlab-topology-generator:
258      fix bug in index bounds for N-S internal exchange (hard to tell if this
259      had any effect on the solution).
260    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
261      is exceeded
262    o testreport: modify syntax of awk, so that it works also with
263      awk, and not only with nawk and gawk
264    
265    checkpoint61
266    o autodiff
267      Change default for TAF usage by removing argument '-nonew_arg'
268      This changes TAF subroutine argument list (ordering of active var.)
269      Omission of this flag leads to incompatibility w.r.t. TAMC
270      To restore TAMC-compatibility, need following modifs:
271      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
272      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
273      Tested TAF version is 1.9.22
274      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
275    
276    checkpoint60
277    --->>> This is the last checkpoint for which generating the adjoint
278    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
279    --->>> by default.
280    --->>> Future checkpoints will ommit this flag by default.
281    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
282    o pkg/grdchk: Add gradient check to etan0 perturbations.
283    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
284    o pkg/autodiff: more flexibility in zeroadj.
285      model/src: modifying do_oceanic_phys.F accordingly.
286    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
287    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
288      special setup of gmredi for which the adjoint is stable
289      enough for parameter optimization.
290    o bridging the gap between eddy stress and GM.
291      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
292          along with a change in CPP option (now ALLOW_EDDYPSI).
293      -> when using GM w/ GM_AdvForm:
294          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
295          is applied either in the tracer Eq. or in momentum Eq.
296          depending on data.gmredi (intro. GM_InMomAsStress).
297      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
298      The key modifications are in model/src/taueddy_external_forcing.F
299      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
300    
301    checkpoint59r
302    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
303      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
304      fix option to read coriolis(@ cell-corner) from files with CS-grid.
305    o pkg/mnc: add some attributes to standard 1D-coordinate variables
306    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
307      mass points, when using mnc for output
308      - add runtime parameter (missing_value, missing_value_int) to override
309        default (which is the value of getcon('UNDEF'))
310    o pkg/mnc: prepare mnc for the actual use of missing values with the
311      diagnostics package: small fix in mnc_cw_readwrite.template and more
312      initialisation of never used fields
313      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
314      versions
315    o pkg/thsice/thsice_ini_vars.F added default initial values so that
316      thermodynamics sea ice solver does not blow up when some initial fields
317      are missing.
318    o move from external_forcing_surf.F to ini_forcing.F
319      the p-coord. hack consisting in using pLoad to set phi0surf ;
320      update output of tutorial_global_oce_in_p (affected @ truncation level).
321    o Freshen up a bit hs94.1x64x5, notably:
322      remove rotationPeriod and tRef=5*0. (adjoint only), and add
323      exactConserv=.TRUE.
324    o pkg/generic_advdiff:
325      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
326      applies to files where Temperature & Salinity 2nd Order moments are used.
327    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
328      this uses a dynamically allocated internal state data structure
329      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
330      and requires a fortran 90 compiler
331    
332    checkpoint59q
333    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
334       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
335    o Refresh tutorial_global_oce_biogeo, notably:
336      - change bathymetry (put back seamounts in ACC, use hFacs)
337      - change EOS (POLY3 --> JMD95Z)
338      - use Bryan-Lewis vertical diffusivity
339      - use multidimensional advection
340      - remove old virtual virtual in dic pkg, now done through ptracer pkg
341      - change a couple of parameters in dic pkg
342    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
343    o pkg/obcs: change default to OBCSfixTopo = .true.,
344      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
345      - replace "debugMode" with "debugLevel .GE. debLevB"
346    o implementation of TAF directives for gchem,cfc,dic
347    o remove "exp5" (replaced by tutorial_deep_convection).
348    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
349      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
350      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
351      --> changes results in exp4, seaice_obcs
352    o tutorial_deep_convection :
353      update the set-up and increase resolution and domain size ; start
354      from pseudo initial conditions = output at t=120mn in order to see
355      something happening when running testreport.
356    o pkg/seaice: add os7mp as an advection scheme
357                  add check for advection schemes
358                  add a flag for restoring T and S underneath sea ice
359    o pkg/my82: add netcdf-support and diagnostics
360    o thsice pkg:
361      - Now hsMax limits snow height by turning it into ice following
362        flooding scheme (and now conserving energy)
363      - Slight rewriting of the formula in thsice_calc_thick.F
364      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
365      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
366    
367    checkpoint59p
368    o gchem / dic / cfc :
369      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
370      - add new parameter files: "data.dic" & "data.cfc" ;
371      - various re-arrangement in initialisation & header file ;
372      - fix tutorial_global_oce_biogeo for multi-threaded test.
373    o pkg/dic: test for "pickup_dic" file when restarting ;
374      if no pickup-file, can restart with a re-initialised pH (same as it did
375      before) providing pickupStrictlyMatch is set to False.
376    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
377      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
378    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
379      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
380    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
381     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
382       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
383    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
384       scheme to use for vorticty-term ;
385     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
386       (with default selectVortScheme, return to original discretisation)
387     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
388    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
389    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
390      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
391      also fix diagnostics VISCAHW & VISCA4W.
392    
393    checkpoint59o
394    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
395    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
396      move a few statemens out the main loop into separate loops
397    o pkg/shelfice:
398      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
399        (kg/m^2/s), does not break tests, because in verification/isomip,
400        rhoConstFresh=rhoConst (by accident)
401      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
402      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
403        new file model/src/seawater.F, so that they are available for all pkgs.
404      - convert potential temperature into in-situ temperature. This changes the
405        isomip tests => update tests
406    o add a flag writePickupAtEnd (default=true) to be able to suppress
407      writing a pickup at the last timestep
408    o tools/mpack-1.6 :
409      - disable automake (not working) and autoconf (not needed).
410      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
411        also cleaner with much less compilation warnings.
412    o pkg/profiles:
413      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
414      (for "less than 32 characters name" compiler requirement)
415    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
416      conditions that have a different sampling frequency than S/T/U/V obcs
417    o pkg/diagnostics (stats-diags):
418      - fix global Min/Max in case 1 processor get only empty tiles
419    o genmake2: replace (4 times)
420         make genmake_tc_1.o >> genmake_warnings 2>&1
421      with
422         COMM="$CC $CFLAGS -c genmake_tc_1.c"
423         echo $COMM >> genmake_warnings
424         $COMM >> genmake_warnings 2>&1
425      to make genmake2 always see the value of CC as specified in the optfile.
426    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
427      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
428      - modify verification advect_cs test to test SOM-advection on CS-grid.
429    o pkg/ctrl:
430      - Rewrite of ctrl_map_ini_ecco.F,
431        introducing a generic routine (ctrl_map_ini_gen.F).
432      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
433    
434    checkpoint59n
435    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
436      number in dedicate array "hdiag":
437      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
438        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
439      - many small changes (integer format) for large number of diagnostics
440      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
441        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
442    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
443      usingSphericalGrid, this allows to define the rotated grid coordinates
444      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
445      geographical coordinates according to the inverse of the rotation defined
446      by the Euler angles, so that Coriolis parameter and online-interpolation by
447      exf works with the geographical coordinates on XC/YC/XG/YG.
448      Naturally, this feature does not work with all packages, so some
449      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
450      profiles), because there the coordinates are assumed to be regular
451      spherical grid coordinates.
452    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
453      - introduce isopycnal diffusion coefficient control.
454    o tools/adjoint_options:
455      - additional control vector components.
456    o pkg/mnc: have mnc create marginally meaning full coordinate variables
457      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
458    o pkg/mypackage:
459      - add example of read/write pickup for state-var ;
460      - add entry points to the main code for state-vars diags & write-pickup.
461    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
462      transitions for useExfYearlyFields
463      - add new subroutine that determines the file to read from for
464        use*YearlyFields = .TRUE. and .FALSE.
465      - add a verification experiment to global_with_exf that tests
466        useExfYearlyFields with USE_EXF_INTERPOLATION defined
467    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
468      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
469      subroutines (which could be generated from a template, because they are
470      almost identical), for now they are included in obcs_prescribe_read.F for
471      simplicity
472    o pkg/exf:
473      - add a little more diagnostic to exf_interp_read (in analogy to
474        mds_read_field, can be turned off with debugLevel < debugLevA=1)
475      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
476        ugly but fast by unrolling short inner loops, inserting a unroll=8
477        directive in routine lagran, and splitting a loop and making do while the
478        outermost loop (the latter requires the intoduction of index arrays)
479    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
480    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
481      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
482    o verification/seaice_obcs: updated for restart test and latest options
483    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
484      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
485      for now this is only available for the C-grid code and also within
486      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
487    
488    checkpoint59m
489    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
490      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
491    o gad_som : fix flux output (& diagnostics) to have same units as other  
492      advection scheme fluxes (was previously multiplied by deltaT).  
493    o added verification/seaice_obcs both to test seaice open boundaries
494      and to provide an example matlab scrpt for generating them
495    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
496    o pkg/salt_plume: clean up salt_plume_frac.F to
497      remove redundancy in PlumeMethod 1 and 4
498    o pkg/kpp: added saltplume diagnostics
499    o pkg/obcs and pkg/seaice:
500      - do not set uice and vice to zero when OB*icefile are unspecified
501      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
502      - moved seaice tracer obcs after call to seaice_growth
503    o pkg/salt_plume: added various options for salt plume depth
504      criterion and for vertical distribution of the salt
505    
506    checkpoint59l
507    o pkg/ptracers: new version of ptracers pickup:
508      read meta file and write only fields which are needed to restart.
509      ( same logic as main pickup file ; also using pickupStrictlyMatch )
510    o pkg/seaice:
511      - add timescale for melting due to warm mixed layer as a means of
512        setting SEAICE_availHeatFrac more conveniently
513      - add a CPP-flag/runtime parameter check for flooding algorithm
514      - reformulated availHeat in seaice_growth.F to be independent of AREA
515    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
516      unit changes
517    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
518    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
519      SX vector computer.
520    o pkg/seaice:
521      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
522        seaice forcing fields can now be read only through pkg/exf
523      - removed some unused halos
524    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
525    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
526      or U/VICE from U/VWIND before computing U/VSTRESS
527    
528    checkpoint59k
529    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
530      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
531    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
532      all experiments pass when compile with un-initialised var. checking option.
533    o added pkg/salt_plume
534    o script to test restart (for now, in MITgcm_contrib/jmc_script)
535    o pkg/seaice: new read/write pickup version.
536      read meta file and write only fields which are needed to restart.
537      ( same logic as main pickup file ; also using pickupStrictlyMatch )
538    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
539    o lab_sea.hb87: modify the domain & update output.hb87.txt :
540      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
541      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
542      process. Fixed here by closing the domain at the Northern boundary.
543    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
544    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
545      a set of consecutive levels in/from a 3-D array.
546    o pkg/ptracers:
547      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
548      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
549    
550    checkpoint59j
551    o in pkgs: dic, obcs, offline, rbcs:
552      standard way to compute coeff. for time interpolation between 2 time reccords
553      which retains full precision (& make results less dependent on compiler).
554      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
555    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
556      packages instead of reading ice cover and wind speed separately
557    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
558     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
559      to allow to compile customized code before the update)
560    o cleaning-up:
561      - fix CPP instruction syntax in pkg/obcs
562      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
563        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
564      - fix some threads issue in IO parts.
565    o pkg/dic:
566      - add tons of "_d 0" (--> much better testreports !)
567       and then update outputs of tutorial_global_oce_biogeo
568    o pkg/mom_fluxform:
569      add a special version of momentum advection intended to conserve momentum
570      next to a bathymetry step or a coastline edge. (default = off = #undef)
571    o new read/write pickup version:
572      - for now, only implemented for main (mdsio) pickup file.
573      - write out only what is needed to restart; merge pickup_nh , pickup_ph
574        and main pickup together.
575      - read meta file; read only what is needed to restart; stop if a field
576        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
577        if it make sense (even if the restart is not perfect).
578      - if no meta file, assume that pickup to read corresponds exactly to
579        a pickup that would currently be written.
580      - read pickup written in the old format (until checkpoint59i) if it
581        recognizes an old meta file (no field-list).
582      - add a meta file in exp. which starts from a pickup: 2 cases:
583        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
584         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
585        b) a meta file describing the content of the associated pickup file
586         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
587    o pkg/mdsio & pkg/rw:
588      - new routine to read a meta file ; new set of routine to read
589        Multiple-fields file (with meta file).
590    o added open boundary conditions capability for seaice
591        HSNOW, HSALT, UICE, and VICE
592    
593    checkpoint59i
594    o adjoint:
595      * fix multiDimAdvection adjoint
596        (partial recomputation problem by TAF for fVerT(:,:,kDown)
597        and comlev1 size definition (maxpass vs. max. number of tracers)
598      * verification/global_ocean.90x45x15 adjoint now tests
599        NLFS and multiDimAdvection using DST3 (=30)
600      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
601    o pkg/kpp: add "_d 0" to real constant (if missing);
602      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
603      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
604    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
605      for internal parameters related to restart process (formerly from PARAMS.h)
606      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
607    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
608      as argument. (only atm2d & obcs write_pickup have not yet been updated)
609    o pkg/monitor:
610      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
611      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
612      - account for deep Atmosphere factor and density factor (anelastic)
613    o added open boundary conditions capability for seaice HEFF and AREA
614    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
615      thermodynamics
616      - requires a little reorganization, which affects the testreport results
617        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
618        so that now the conservative form is tested
619      - add a few comments
620    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
621    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
622    o add new diagnostics to seaice: advective, diffusive fluxes (only for
623      multidim-advection, for scheme 2 they are not filled) and transports,
624      thermodynamic growth rates
625    o change units of EmPmR (inside the code, + within coupling interface)
626      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
627      Affects results @ truncation level (cg2d match) and update output of
628       experiments: lab_sea(6), global_ocean.90x40x15(10),
629      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
630      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
631      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
632      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
633    
634    checkpoint59h
635    o pkg/exf:
636      - improve vectorization by moving if-statement out of loops in
637        exf_mapfields, exf_radiation
638      - exf_bulkformulae.F: introduce 2D fields and vectorize code
639    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
640    o testreport:
641      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
642        monitor & update offline_exf_seaice exp. output.
643      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
644    o pkg/seaice:
645      - bug fix in the evp solver: boundary conditions were affected be
646        masking of zMax/zMin (changes results)
647      - minor bug fix in boundary conditions in seaice_calc_strainrates
648        (changes results for no_slip)
649      - seaice_lsr.F: make interpolation of eta dependent on boundaries
650      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
651      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
652        stress formulation and no-slip boundary conditions
653    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
654      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
655    o pkg/seaice: a first HSALT time stepping equation has been checked in
656    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
657      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
658      without requiring DO-IF statements
659    o pkg/thsice:
660      use continuous power-law function for partition of energy between lateral
661      melting/freezing and thinning/thickening ; old code using step function
662      still available with #undef THSICE_FRACEN_POWERLAW
663      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
664    o testreport: change AD testing : check against results/output_adm.txt
665      using same scripts as for forward test.
666    
667    checkpoint59g
668    o adjoint testing: in preparation for changing testreport:
669      - output format: cost and grad written on separated lines
670      - ad output results in directory "results" (instead of "results_ad")
671    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
672    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
673    o pkg/ecco: allow user defined cost function contributions
674    o testreport:
675      Allow to choose (per experiment) the list of tested output variables
676       and the main variable (used to issue a pass/FAIL ) ;
677      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
678      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
679      Also modify printing of summary:
680       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
681       b) echo the list of tested variables in the individual summary.txt of
682          each experiment.
683    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
684      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
685      (but still depend on the tile decompostion of the domain).
686    o pkg/seaice: change a discretization detail to make the B-grid code
687      "more symmetric". This change is likely to remove all "ridges/leads" that
688      where quasi-aligned with the grid in B-grid solutions. It may also be
689      the solution to the stress coupling issues with the B-grid.
690    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
691      remove .cvsignore from input dir. (since testreport no longer run here).
692    o pkg/thsice:
693     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
694     - fix reshaping of sea-ice just after advection:
695       melt all the ice only if ice-volume is too small.
696     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
697       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
698     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
699    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
700      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
701    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
702      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
703      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
704      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
705      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
706      -> update output.txt
707    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
708     this affects truncation error: -> update output.txt of exp:
709      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
710      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
711    
712    checkpoint59f
713    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
714    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
715      a bounded range (in forward mode)
716    o pkg/ecco, ctrl, autodiff and mom_common:
717     internal parameter controls, completements of implementations
718    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
719    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
720      (not seem any difference in testing results).
721    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
722       at face corners.
723    o pkg/generic_advdiff:
724     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
725      loop range indices for computing vertical advection tendency
726      and do the calculation in the interior only (no overlap) ;
727      for now, only implemented for SOM advection (to save CPU time).
728     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
729    o exch2 adjoint
730      First set of changes:
731      - add exch2 hand-written adjoint templates
732      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
733        This will require cleanup in pkg/autodiff/*.F
734        (changed routines currently kept separate in verif. code/)
735      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
736        that used to hide exch2 or cubed-sphere specific code
737        (commented via 'cph-exch2')
738    o pkg/seaice
739      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
740    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
741       output of global_ocean.cs32x15.thsice .
742    
743    checkpoint59e
744    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
745      for B-grid vector (not yet tested) and C-grid vector (<- only used
746      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
747    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
748      (#ifdef ALLOW_SALT_PLUME)
749    o gather_2d/scatter_2d: removed halo regions
750    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
751      scheme and the corresponding test case (under front_relax dir). For now,
752      only available with Skew-flux form and not yet tested in realistic set-up.
753      adjoint: store directives updated, but gradient checks deteriorated,
754      so maybe GM/Redi adjoint is now broken.
755    o seaice adjoint
756      * add AREA, HEFF, HSNOW as control variable
757        (should not change lab_sea results)
758      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
759    o pkg/seaice:
760      * added computation of saltFlux in seaice_growth;
761        For time being, sea ice salinity is assumed constant
762        contribution of snow flooding to freshening of sea ice is neglected.
763        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
764        defaults to 0.0 in order to maintain backward compatibility.
765        Typical values for SEAICE_salinity are 4 to 10 g/kg.
766      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
767      * added SEAICE_availHeatFrac, which specifies fraction of surface level
768        heat content used to melt or grow ice
769      * commented out cap of HICE: it helps keep ice thinner
770      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
771      * applied OBCS T/S mask to HEFFM sea ice mask
772    
773    checkpoint59d
774    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
775     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
776     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
777    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
778     and change default value of parameter "GM_Small_Number";
779     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
780       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
781       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
782    o pkg/ecco: cost function when applying pkg/smooth to controls
783    o pkg/ctrl: add forcingPrecond run time parameter
784    o pkg/seaice:
785     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
786     - fix bug in metric terms of u-equation in LSR solver (implicit part),
787       changes verification/lab_sea
788     - rearrange implicit part of u-equation in LSR solver to make it easier to
789       read, understand, and debug. This causes changes at the truncation level.
790     - fix (serious) bug in the boundary conditions (sign error in the implicit
791       part) of the LSR solver. Changes all LSR results.
792     - fixed problem with HSNOW initialization to avoid thick snow when AREA
793       is initilized with small values - does not change lab_sea results.
794     - added HsnowFile initialization capability
795    o pkg/smooth: addition to model/src and pkg/ctrl so allow
796     initialization of pkg/smooth and application to control vector
797    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
798    o dependencies: pkg/profiles requires pkg/cal
799    o pkg/profiles:
800     - added option ALLOW_PROFILES_GENERICGRID
801         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
802         that interpolation information (grid points and coefficients) is provided
803         within the netcdf input files.
804         -> sample matlab scripts can be found in MITgcm_contrib/gael
805         that allow you to prepare netcdf input files.
806     - also modified: cleaner include statements, cleaner error print statements,
807       cleaner stops when error, and more tests of the netcdf input files consistency.
808    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
809    o pkg/seaice:
810     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
811       requires a new routine: seaice_diagnostics_fill.F
812     - make sure that seaice does not move if not forced (pressure replacement
813       method, Hibler and Ip, 1995), changes results
814     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
815     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
816       It is turned off by default (=-1.), because it changes the results.
817     - make it possible to read AREA from a file, too.
818    
819    checkpoint59c
820    o add S/R and diagnostics for oceanic mixed-layer depth
821    o move GMRedi call after all vertical mixing schemes (including KPP)
822    o pkg/thsice:
823     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
824      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
825    o pkg/obcs:
826     - bug fix for balance code
827    o pkg/seaice:
828      - allow values of SEAICE_elasticParm > 1
829      - add new parameter SEAICE_evpTauRelax as an alternative
830        to SEAICE_elasticParm
831      - make lsr boundary conditions free slip (by default), changes result
832      - add code for no slip boundary conditions for lsr
833      - set minimum of zeta to zero (and not 4e8) (changes results)
834      - add a cap on AREA after advecting AREA if seaice_growth is not called
835    o change calculation of Visbeck K:
836      - no longer depend on tapering scheme; instead, compute slope (limited
837        by GM_maxSlope). this is equivalent to what was comuted before with
838        clipping or linear tappering.
839      - fix vertical averaging (wrong by 1/2 level)
840      - leave the old version (but will not be maintained) within
841        #ifdef OLD_VISBECK_CALC / #endif
842      - update output of exp. ideal_2D_oce
843    o change error catch in calc_r_star to improve vectorization
844    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
845      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
846    o adjoint:
847      Re-organized adjoint checkpointing according to Matt Mazloff
848      (but with modifs/completions/cleanups)
849      Storing is now bundled into large arrays to optimized I/O
850      (and second step in cleanup of the_main_loop)
851    
852    checkpoint59b
853    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
854      - export/import (between ocean & coupler) fields needed for ocean DIC.
855    o pkg/seaice:
856      - get rid of three more exchanges seaice_calc_viscosities (required
857        different loop boundaries in seaice_lsr and seaice_ocean_stress)
858      - bug fix in seaice_ocean_stress (update of lab_sea required)
859      - reduce loop boundaries to necessary minimum also in seaice_evp
860      - go back to the old way of computing deltaC/Z as the adjoint likes that
861        better
862    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
863      passive tracer to an Age Tracer) + update output.txt
864    o pkg/exf:
865      - implement A-grid / C-grid selection for wind-stress input files.
866      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
867      for now, in exf_bulk_largeyeager04.F only :
868      - change implementation for case where windspeed + 2. components wind-stress
869        are read-in. AND use rhoConstFresh to convert evap.
870    o pkg/seaice:
871      - use correct EXCH_UV for wind-forcing (on A-grid).
872      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
873        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
874    o pkg/exf:
875      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
876      EXF_INTERPOLATION:
877      - merge global_with_exf/code version of exf_interp_read.F
878        to the main code ;
879      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
880        reading the file ; Important: This options needs to be defined to recover
881        previous code.
882        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
883      - no longer loose real*8 precision along the way when using exf_iprec=64.
884    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
885      - change discretisation of evp-solver in order to avoid another exchange
886        (changes lab_sea) and clean up a little
887      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
888        help the adjoint (this also changes the results slightly)
889      - add a few "_d 0" where they had been missing in seaice_evp.F
890      - cleaning up: remove unused seaice_calc_rhs.F
891    o pkg/exf: some cleaning-up:
892      - change various "constants" into runtime parameters
893      - cleaned-up Large&Yeager04 routine which should eventually
894        replace exf_bulkformulae.F (changed names of S/R and CPP)
895        and merged various ALLOW_ATM_WIND options
896     only used with thsice pkg (in thsice_get_exf.F):
897      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
898        which are used when useStabilityFct_overIce=TRUE (= the default)
899      - change default values of ice & snow emissivity and scale downward LW
900        by ice & snow emissivity.
901    o pkg/thsice:
902     fix few little problems, in thsice_calc_thickn.F:
903      - growth vertically (and not laterally) if iceFrac == iceMaskMax
904      - melt only laterally if hIce < hThinIce (as the comments say)
905      and in thsice_extend.F:
906      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
907      - start to form ice as soon as the minimum ice-volume is reachable.
908     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
909      and cpl_aim+ocn
910    o pkg/kpp
911     - move computation of surface related input fields to KPP into a new
912       subroutine kpp_forcing_surf.F
913     - remove wrong (within bi,bj loops) EXCH calls.
914     - little cleaning (add argument myThid in last position, cvs header ...)
915     - for now, fix conservation problem by exchanging KPPviscAz (may not
916       be the best fix)
917    o pkg/seaice
918     - check for inconsistent evp parameter/cpp-flag combination
919     - remove leftover errIO flat for obsolete name list error handling
920    o OpenAD
921     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
922    
923    checkpoint59a
924    o pkg/seaice: some parameter clarifications and a little bit of clean up
925    o pkg/thsice: rename run-time parameters:
926       himin       -> hIceMin
927       himin0      -> hThinIce
928       hihig       -> hThickIce
929       i0          -> i0swFrac
930       transCoef   -> bMeltCoef
931       frac_energy -> fracMelting
932      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
933       with default values (for now) that do not change the results.
934      remove old version of thsice vars advection in pkg/seaice.
935    o in FFIELDS.h:
936      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
937      - make pLoad & sIceLoad always available (but still only used if
938         ATMOSPHERIC_LOADING is #define).
939    o pkg/kpp: replaced _KPP_RL with _RL
940    o bug fixes for vertical diffusivity computations when both KPP and
941        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
942        are no longer updating the vertical diffusivity array
943        (passed as argument) but are (re-) setting those arrays.
944    o pkg/seaice: fix bug in evp solver, while doing that
945      - change (improve?) discretization of stress computations for both
946        cgrid-lsr and evp solver
947      - add a new routine to compute strain rates
948      - the above changes lab_sea results
949      - add no slip conditions for evp solver (off by default), lsr-version
950        may follow
951      - fix exchange for shear at Z-points (does not change lab_sea)
952      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
953        (to force the user to pick a time step since there is not "safe" way
954        of choosing it)
955      - add principal stress diagnostics
956      - rearrange fields for evp a little to avoid having to call a: too many
957        exchanges and b: exchanges for stress trensor components which we do
958        not have.
959      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
960        of evp, complete rewrite for lsr case (latter is does not yet work
961        in all cases)
962    o pkg/kpp: add code to have mixing in shelf ice caverns
963      - add myThid to all kpp routines (long overdue)
964    
965    checkpoint59
966    o pkg/exf:
967      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
968        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
969      - move exf header files from lower_case.h to UPPER_CASE.h ;
970        add missing cvs Header & Name
971      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
972      - add namelist param. selectStressGridPosition, exf_monFreq
973      - retire many _CLIM routines, and remove data.exf_clim
974        + params moved to data.exf
975        + climsst, climsss now handled by exf_set_gen, i.e.
976          climss?period=0 refers to constant field,
977          climss?period=-12 to monthly forcing
978      - split up namelists in data.exf
979    o pkg/seaice:
980      - remove seaice_exch and seaice_exch_uv
981      - remove superfluous exchange of theta
982      - add myThid to seaice_budget_ocean/ice
983      - add new interface for atmospheric wind forcing (C-grid only)
984        + new routine
985        + two new field (taux, tauy for stress over ice)
986        + removed one global field (DAIRN) for C-grid case only
987    o pkg/thsise
988      - 2nd set of modifs for thsice adjoint in conjunction with exf
989    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
990    
991    checkpoint58y_post
992    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
993      vertical diffusivity, similar to that in MOM4; turned on using
994      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
995      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
996    o Added capability for 3D specification of background vertical diffusion
997      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
998      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
999      "data" file that contains the 3D vertical diffusivity coefficients.
1000    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1001      - add code within pkg thsice to advect & diffuse sea-ice fields
1002      similar to (and will replace) what has been added in  seaice_advdiff.F,
1003      but: - conserving Mass, Heat & Salt.
1004           - better when using non-linear advection scheme (not yet fully tested)
1005           - can also be used in atmospheric set-up (for now, only the diffusion).
1006    
1007    checkpoint58x_post
1008    o IO option for global-file compact format:
1009      - add options when generating topology (utils/exch2/matlab-topology-generator)
1010      - add I/O capability (pkg/mdsio).
1011      - adapt utils/matlab/rdmds.m to read this format.
1012      for now long-line format not yet supported by pkg/mdsio (& exch2).
1013    o shelfice: add a few diagnostics
1014    
1015    checkpoint58w_post
1016    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1017      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1018      (and replace horiVertRatio in NH code).
1019      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1020                         and tutorial_plume_on_slope (sensitive to truncation)
1021    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1022      directly to drive seaice model (C-grid only)
1023    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1024     - reintroduce computation of wind from stress,
1025     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1026       mass points to avoid tau = 0
1027     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1028    o rdmnc.m: make it work with "global" files created with gluemnc
1029    o rdmnc.m : some improvements in dealing with singleton dimension
1030      (tested on all testreport mnc output files).
1031    o genmake2: disable pkg/profiles if netcdf test fails.
1032    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1033    o move call to cal_readparms up to make calendar parameters/variable available
1034      to all packages
1035    
1036    checkpoint58v_post
1037    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1038      useDynP_inEos_Zc tested.
1039    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1040    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1041      and portions thereof.  See read_cs.txt for description and examples.
1042    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1043      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1044      following the great-circle arc between those 2 points.
1045    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1046      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1047    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1048     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1049     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1050     - still needs work (not working with some options ; efficiency to improve)
1051       and serious testing.
1052     - use this scheme for temperature & salinity in 2 advection test exp.:
1053       advect_xy & advect_xz, respectively.
1054    
1055    checkpoint58u_post
1056    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1057    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1058    o testreport: add option "-skipdir" to skip some test.
1059    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1060      momentum calculation.
1061    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1062    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1063      remove checkpoint.F and the_correction_step.F (no longer used);
1064      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1065    o add option (linFSConserveTr) to correct for tracer source/sink due to
1066      Linear Free surface
1067    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1068    o pkg/thsice: fix reading mnc-pickups
1069    
1070    checkpoint58t_post
1071    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1072    o pkg/mdsio:
1073     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1074       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1075       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1076     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1077     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1078       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1079     - new S/R (to replace MDSWRITEMETA), which allows to write more
1080       informations (variable names, time ...) to meta files.
1081     - modify rdmds.m to give back the meta file content.
1082    o pkg/diagnostics: change vertical interpolation to be safer, and more
1083       flexible (define p-levels to interpolate to in data.diagnostics);
1084      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1085       diagnostic pointer.
1086    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1087    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1088    o fix multi-category seaice:
1089     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1090       SEAICE_MULTICATEGORY
1091     - fix short wave heat flux
1092    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1093       and allow to use EVP solver. Change forward lab_sea: test both EVP
1094       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1095    o Initial check-in of lab_sea adjoint
1096      (very similar to natl_box_adjoint/code_seaice)
1097      * used C-grid and EVP solver
1098      * used KPP, GM/Redi
1099      * uses inAdExact=.TRUE.
1100      * gradient checks fail for both ADM and TLM
1101        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1102        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1103        issue is related to forward mismatch between g77 an ifort
1104    o pkg/seaice: overhaul of thermodynamics
1105     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1106     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1107     - move a few global fields out of SEAICE.h into seaice_growth.F and
1108       make them 2D (FICE/QNETO/ ...)
1109     - remove FO (it is the same as QNETO)
1110     - introduce a few local fields to avoid modifying external fields such
1111       as atemp, etc.
1112    
1113    checkpoint58s_post
1114    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1115      changed exf_set_gen.F so that
1116        genperiod=0 means input file is one time-constant field and
1117        genperiod=-12 means input file contains 12 monthly means
1118    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1119      this affects truncation error ; generate new output file for exp. which
1120      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1121        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1122        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1123        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1124        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1125        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1126    o start implementation of deep-atmosphere and anelastic formulation
1127    o verification: remove 2nd copy of input files and use script "prepare_run"
1128      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1129    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1130    o profiles: fix for multithreaded case
1131    
1132    o diagnostics: rename few diags:
1133      s/'PRESSURE'/'RCENTER '/g
1134      s/'TICE    '/'oceFreez'/g
1135      s/'TAUX    '/'oceTAUX '/g
1136      s/'TAUY    '/'oceTAUY '/g
1137      s/'SWFLUX  '/'oceQsw  '/g
1138      s/DIFx/DFxE/g
1139      s/DIFy/DFyE/g
1140      and add few ocean-forcing diagnostics:
1141      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1142    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1143      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1144      as actual snow thickness.  It now refers everywhere to effective snow
1145      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1146    
1147    checkpoint58r_post
1148    o modifications to pkg/seaice/growth.F, which change results of
1149      lab_sea experiment: fixes pertain to melting snow over open water, to
1150      masking EVAP under sea ice, and to using the correct AREA variable for
1151      computations of EVAP, PRECIP, HSNOW, and GHEFF
1152    o add ability to read bathy, salt, and theta using MNC (off by def)
1153    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1154      both are turned off by default and do no change any results
1155    o seaice advection with pkg/thsice: a step toward the use of non-linear
1156      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1157    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1158      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1159      in natl_box (affects results @ truncation level: update output.txt)
1160    o multi-threading and IO:
1161      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1162      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1163        (needed to work with SingleCpuIO): tested in all verif. exp.
1164    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1165      affects the results (but none of the verification test uses this scheme).
1166    o Adding some pkg/diagnostics capability to pkg/seaice
1167      (will certainly be subject to changes)
1168    o ctrl: adding new control variables:
1169      lwflux, lwdown, evap, snowprecip, apressure, runoff
1170    
1171    checkpoint58q_post
1172    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1173      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1174      high_res_cube configuration by 4% on Columbia.
1175    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1176      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1177      dynamical allocation (seems to work in multi-threaded).
1178    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1179      single CPU io) so that TAF does not have to see EESUPPORT.h
1180    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1181    
1182    checkpoint58p_post
1183    o obcs: stop if obcs is used with useCDscheme = .true.
1184    o shelfice:
1185     - fix a sign error so that no slip at shelfice interface works
1186     - remove stop for combination non-hydrostatic code and shelfice. That does
1187       not mean, that the results are correct, but at least they are numerically
1188       stable
1189    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1190    o added adjoint exch routined for all exch*3d* routines
1191      and updated flow directives
1192    
1193    checkpoint58o_post
1194    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1195      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1196    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1197      and clean-up reading/writing of pickup files.
1198    o fix local version of read/write pickup (NH part) in rotating_tank/code
1199    o simplify EXCH interface:
1200     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1201     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1202    o added the regrid package
1203    o shelfice:
1204     - add a simple boundary layer scheme to reduce noise
1205     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1206    
1207    checkpoint58n_post
1208    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1209       local variable (not in common block).
1210    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1211      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1212      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1213        to work with SingleCpuIO.
1214    o add "_d 0" to real constant of pkg/cfc subroutines ;
1215       update exp. cfc_exemple & tutorial_cfc_offline output files.
1216    o multi-threading and IO:
1217      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1218        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1219      - barrier before and after reading.
1220      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1221      - avoid using MDS_WRITELOCAL for LAND pkg output.
1222      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1223        common-block variables ; Allows multi-threading with master-thread IO.
1224    o change default MAX_NO_THREADS from 32 to 4 ;
1225      and stop cleanly when MAX_NO_THREADS is too small.
1226    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1227    
1228    checkpoint58m_post
1229    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1230       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1231    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1232       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1233       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1234    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1235        add MITgcm_tutorials (= code + all the tutorials)
1236    o ecco, option to compute cost for total ssh (mean+anom)
1237    o consistent with addition of ptracer and ssh in pkg/profiles
1238    o profiles: adding ptracer and ssh
1239    o testreport: change multi-test output-file name
1240      (from output.txt.{name} to output.{name}.txt)
1241    o profiles: now ok for mutli-tiles case
1242    o seaice: add 4 parameters for different advection schemes for area,
1243      (effective) seaice thickness, enthalphy, and snow height. Their default
1244      is the standard parameter SEAICEadvScheme
1245    o calc_gw:
1246     - add cosFacU in zonal viscous flux (harmonic.visc.).
1247     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1248       of tutorial_plume_on_slope.
1249    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1250    o calc_gw: true flux-form, account for horizontal grid spacing.
1251      update rotating_tank results, but not plume_on_slope (affected at
1252      truncation level, 11 digits).
1253    
1254    checkpoint58l_post
1255    o calc_gw:
1256     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1257     - remove side-drag for now (need to fix it); update plume_on_slope results.
1258     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1259    o commit code to make SST/SSS weights spatially variable
1260      (based on either variable in-situ or variable initial T/S weights)
1261    o pkg/ecco:
1262      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1263        now based on horizontally varying weights wthetaLev, wsaltLev
1264      * cost_averagesflags now returns year indices in addition to day, month
1265      * sflux balance is performed on annual basis
1266        (sflxumm, sfluxmm2, bal_sfluxmm)
1267      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1268        including separate counting and multipliers
1269    o pkg/rbcs
1270      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1271    
1272    checkpoint58k_post
1273    o testreport:
1274     - always build in dir. "build" (if not there, mkdir build instead of building
1275       & running in input)
1276     - run in dir run (if it exists), in build otherwise.
1277     - call prepare_run (if input/prepare_run exists)
1278     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1279    o pkg/exf modifications to interpolation and rotation routines for more
1280       reasonable treatment of North Pole singularity: for tracers North Pole
1281       value is set to northernmost zonal-mean value, for zonal velocity it is
1282       set to zero, and for meridional velocity it is set to northernmost value.
1283    o pkg/exf/exf_check_range.F
1284     - add tile index to diagnostics and move stop statement to the very
1285       end of the routine.
1286    o pkg/diagnostics: (diagnostics_main_init.F)
1287      define title of isomorphic variables according to the current config.
1288    o pkg/thsice with pkg/seaice dynamics:
1289    - fix domain of computation (interior only, required for exf) and do exchanges
1290    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1291    o towards a standard way of dealing with multi-threading in MONITOR
1292      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1293    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1294       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1295    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1296    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1297    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1298       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1299    o tracer advection:
1300     - clean-up and simplify calc_common_factors.F
1301     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1302       advection subroutine (but still not used within DST advection S/R)
1303    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1304    
1305    checkpoint58j_post
1306    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1307      from file (collects calls previously in FORWARD_STEP)
1308    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1309    o adjoint store dir. adjusted accordingly
1310    o genmake2
1311      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1312    
1313    checkpoint58i_post
1314    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1315      on wind stress (SEAICEstressFactor defaults to 1.)
1316    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1317      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1318    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1319      on CS-grid: no longer loosing mass.
1320    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1321    o pkg/ggl90: fix sloppy output and fix a bug
1322    o pkg/seaice: added SEAICEuseEVPpickup parameter
1323      - Set to false in order to start EVP solver with
1324        non-EVP pickup files when using SEAICEuseEVP
1325      - fix sign error in diffusion in seaice_calc_rhs
1326    
1327    checkpoint58h_post
1328    * Modifications for bottom topography control
1329      o replace hFacC by _hFacC at various places
1330      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1331      o add non-self-adjoint cg2d_nsa
1332      o update autodiff support routines
1333      o re-initialise hfac after ctrl_depth_ini
1334      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1335    * Adding verification for 5x5 box (4-layer) bottom topography control
1336    
1337    checkpoint58g_post
1338    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1339       used for mean seasonal cycle, mean diurnal cycle); add an example
1340       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1341    o pkg/ggl90:
1342      - add parameter (minimum surface kinetic energy)
1343      - fix bug (avoiding division by zero)
1344    o couple pkg/thsice to pkg/seaice:
1345      - modify advection in seaice to accomodate new scalar fields to be advected
1346      - only muliDimAdection scheme work with seaice/thsice
1347      - mapping of thsice-variables to seaice-variables, back and forth
1348      - does not break the verification experiments, but does not give the
1349        desired results either
1350    o pkg/seaice
1351      - make (default) second order advection a bit less confusing?
1352    
1353    checkpoint58f_post
1354    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1355      to pkg/seaice):
1356      - new routines thsice_map_exf and thsice_get_exf provide the interface
1357      - add an additional formal parameter to thsice_solve4temp
1358    o pkg/exf:
1359      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1360      - correct Stefan-Boltzmann constant
1361      - new parameter for longwave surface emittance
1362      - separate some stuff from exf_bulkformulae into new routines  
1363        exf_radiation, exf_wind
1364      - add new parameters and constants: longwave emissivity for ocean, ice
1365        and snow, evaporation parameters over ice
1366      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1367        either wind from stress or stress from wind
1368    o pkg/thSIce:
1369    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1370    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1371       and THSICE_CALC_THICKN
1372    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1373    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1374      to make debugging easier.
1375    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1376    o pkg/bulk_force:
1377      - clean-up comments and parameters ;
1378      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1379    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1380      generate new output for test-experiment: aim.5l_cs.thSI
1381    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1382      testreport accordingly
1383    
1384    checkpoint58e_post
1385    o SEAICE_CGRID adjoint done
1386    o R_STAR adjoint implemented.
1387      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1388      * need to sort out init. of h0facc, etc.
1389    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1390      to be able to use it in pure forward.
1391    
1392    checkpoint58d_post
1393    o upgrade simple test-experiment to tutorial example:
1394     step.1: duplicate the experiment and (step.2) will remove the old copy.
1395      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1396      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1397      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1398      tutorial_global_oce_biogeo    <- copy of dic_example
1399      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1400      tutorial_plume_on_slope       <- copy of plume_on_slope
1401      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1402      tutorial_global_oce_optim     <- empty for now (David ?)
1403      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1404     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1405    o correct a sign problem in cost_scat.F
1406    o obcs and ptracers: fix boundary conditions for advections schemes
1407      with larger stencil
1408    o thsice adjoint: start
1409    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1410      completeness
1411    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1412      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1413    o ptracers adjoint:
1414      * avoid extensive recomputatations
1415      * fix missing re-init. of gptr (missed by TAF)
1416    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1417      me to turn off the excessive output to STDOUT that this package produces
1418    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1419      and add those terms in Vector-Invariant formulation.
1420    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1421      if the control period (xx_hfluxperiod etc) is 0
1422    o in profiles pkg, clean routines and fix details
1423    o in ecco pkg, reading ssh data:
1424      fix problem in case the model does not start at iter0=0
1425    o fix mnc-pickup/restart for ptracers
1426    o new package prifiles:
1427      code to compute profile-based cost by Gael Forget
1428      (modifs in ecco, ctrl, autodiff)
1429    o Benign bug fix in initialization (spotted by M. Mazloff) of
1430      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1431    
1432    checkpoint58c_post
1433    o adjoint: finish NLFS adjoint and provide reference output in
1434      verification/global_ocean.90x40x15/results_ad_nlfs
1435    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1436      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1437      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1438      with SEAICE_CGRID defined.
1439    o move calendarDumps from "data" to "data.cal" and clean-up the code
1440      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1441    o add useEXF & useCAL flags (for now, set in hard-coded way)
1442    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1443      (were missing in NH mode, and wrong in quasihydrostatic mode).
1444      waiting for Chris updated version of calc_gw to add those CALLs.
1445    o fix bug in quasihydrostatic S/R ;
1446      add a test for this option: global_ocean.90x40x15.qshyd
1447    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1448      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1449    o add on/off flag useOffLine for package OFFLINE
1450    o seaice:
1451      - modify advection so that it works also on the C-grid
1452      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1453        problem in multi-tile runs with C-grid
1454      - add flags for clipping ice velocities and/or masking solver forcing
1455      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1456        C-grid solver
1457      - added a few comments to seaice_diffusion.F
1458      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1459        are now exclusive)
1460      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1461        required re-ordering the code a little:
1462       + make DAIRN global variable (defined in SEAICE)
1463       + move computation of the viscosities eta and zeta into a new separate
1464         routine (because I need to recompute them in seaice_ocean_stress.F)
1465    
1466    checkpoint58b_post
1467    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1468      update output.txt of exp. aim.5l_cs.thSI
1469    o various mnc cleanups and improvements:
1470      + shrink lookup tables by factor of ~4
1471      + better error reporting when running out of lookup space
1472      + able to handle longer path/file names (up to 500 chars)
1473    o adjoint:
1474      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1475      - TBD: "hidden" mom_vecinv recomp. in dynamics
1476    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1477     (allow to differentiate between forcing components using new integer flags:
1478      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1479     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1480    o ecco
1481      - enable trend removal from SSH anomaly obs.
1482    o adjoint
1483      - a fix for PmEpR when #undef EXACT_CONSERV
1484      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1485      - try to fix "hidden" recomp. in forward_step for NLFS
1486        (NLFS seems broken sometimes after I checked it in)
1487    o seaice:
1488     - add c-grid version of the dynamic solver:
1489       + three new routines that are the c-grid substitute lsr, dynsolver
1490         and ostres
1491       + put a few fields that were local to dynsolver into global common
1492         blocks, so that I can move the computation of stresses etc into
1493         seaice_lsr (saves coding but may break the adjoint).
1494     - replace more hardwired parameters by runtime parameters
1495     - add ice masks that mask the rhs of the implicit solvers where there
1496       is no ice (commented out in seaice_dynsolver, because i am not sure
1497       if this works properly), eventually this should replace the clipping
1498       of ice velocities in seaice_dynsolver to +/-40cm/s.
1499    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1500      include it only where its needed
1501    o move balancing of fluxes before the call of external_forcing_surf
1502    o seaice:
1503      - correct units of turning angles (now they are really in degrees)
1504      - move computation of GWATX/Y out of main routine into dynsolver
1505      - initialize GWATX/Y in seaice_init
1506    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1507      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1508    o seaice: add runtime flags for turning angles (default to zero)
1509    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1510      and trend from exf forcing and ctrl control adjustments
1511    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1512      (since checkpoint57x_post)
1513    o change the default rotation period to 86164.s = the Earth rotation
1514    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1515      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1516    o seaice advection: add code for choosing between the default (2nd order
1517      central differences) and multiDim advection schemes provided by
1518      pkg/generic_advdiff
1519    o seaice:
1520      - removed all references to SEAICE_GRID.h fields from
1521        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1522        (cubed-sphere configuration will change a little)
1523      - grid computations in seaice_init are obsolete now.
1524      - cleaned up code a little so that is easier to read (hopefully).
1525      - added new (better?) discretizations of default advection and diffusion
1526        (turn on with SEAICEuseFluxForm)
1527      - replace 1 in 3d global fields by kSurface in growth.F
1528      
1529    checkpoint58a_post
1530    o seaice:
1531      - bug fix in advect.F
1532    o shelfice:
1533      - separate shelfice load anomaly from pload (breaks with time
1534        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1535        Its default is 0., but it may be computed more cleverly from (unknown)
1536        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1537        done offline. A good approximation of the pressure load anomaly is
1538        necessary to avoid large initial adjustment processes underneath
1539        deep-reaching shelfice.
1540      - small fix in ISOMIP shelfice_thermodynamics
1541      - add more sophisticated thermodynamics of Hellmer (1989), this is
1542        now the default
1543      - give a few constants more intuitive names
1544    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1545      if bulk formulae are used in long integration (especially EmPmR). Turn
1546      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1547      if balancePrintMean, the imbalance that is substracted is printed to
1548      STDOUT.
1549    o fix bug (typo) in obcs_apply_eta.F
1550    o add a new package shelfice which enables us to model the circulation
1551      underneath shelf-ice with draughts of hundreds of meters.
1552     - works
1553     - to do: + include improved thermodynamics
1554              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1555                instead of new field kTopC
1556              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1557                instead of new field R_shelfIce and new code in ini_depth.F
1558                and ini_mask_etc.F?
1559              + adjust vertical mixing schemes?
1560    o seaice pkg:
1561     - add a cpp-flag to include a simple formula for a salinity dependent
1562       freezing point of sea water at the surface
1563     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1564       meridional stresses are now different (and hopefully correct)
1565    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1566       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1567       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1568    o pkg/diagnostics: add options and parameters for regional-statistics
1569       diagnostics ; define regions by reading a region-mask from a file
1570       (might add other options later)
1571    o pkg/bulk_force:
1572     - add option and parameters to use AIM surface-flux formulae.
1573     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1574       others forcing fields (defined in PARM05, parameter file "data") are loaded
1575       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1576     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1577     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1578     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1579       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1580     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1581    
1582    checkpoint58
1583    o add "--embed-source" option to genmake2 which, when the supporting
1584      tools can be compiled (as determined by genmake2) will turn on the
1585      embed_files package which then embeds the entire MITgcm source code
1586      (*.[fFhc] + Makefile) used for the build within the executable
1587      - requested by CNH but off by default
1588      - adds a paltry <9MB to the mitgcmuv executable in most cases
1589      - only writes the output when useEMBEDSRC in eedata is true
1590    o clean up 3-dim. relaxation codes:
1591      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1592      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1593      * Thanks to Tom Haine for testing!
1594    
1595    checkpoint57z_post
1596    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1597      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1598    o fix the pickup behavior for obcs in combination with ptracers
1599    o fix a bug in ptracers_external_fields_load
1600    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1601      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1602    o transfered surface NH pressure to eta field (if exactConserv).
1603    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1604         and update lab_sea output.txt file.
1605    o completing 3-dim. relaxation code: additional term
1606         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1607      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1608      * At compile time, in "EXF_OPTIONS.h" set
1609          #define  ALLOW_CLIMTEMP_RELAXATION
1610          #define  ALLOW_CLIMSALT_RELAXATION
1611      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1612          tauThetaClimRelax3Dim = 15552000.0,
1613          tauSaltClimRelax3Dim  = 15552000.0,
1614      * 3 cases:
1615          1) Use a constant-in-time 3-dim. field
1616          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1617          3) Real-time relax. to time-evolving prescribed field
1618    o Adding Laplacian-type smoothness constraint on
1619      initial and boundary (forcing) controls (ic, bc)
1620      * enable at compile-time via
1621        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1622      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1623      * Absolute scale somewhat unclear so far
1624      * no area weighting was included since no other cost term does so far
1625    
1626    checkpoint57y_post
1627    First step for a NLFS adjoint
1628    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1629    o new init. routines for calc_r_star, calc_surf_dr
1630    o still need to deal with ini_masks_etc
1631    o testreport seemed happy
1632    checkpoint57y_pre
1633    
1634    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1635    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1636    o add new offset feature to offline pkg (plus minor cleanup)
1637    o cfc fixes for final year of integration
1638    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1639      be in GCHEM_OPTIONS).
1640    
1641    checkpoint57x_post
1642    o fix testreport Pb in multiple test experiment.
1643    o cleanup our namelist syntax in verification:
1644      - make it more F95 standards compliant (some work still needed)
1645      - allows the vast majority of our tests to work with gfortran
1646    o Non-Hydrostatic:
1647     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1648     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1649    o Allow to apply AB on T,S rather than on AB(gT,gS):
1650     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1651     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1652       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1653     - need a "clever" read_pickup to restart from the other AB formulation
1654    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1655    o remove some unused variables (reduces number of compiler warnings)
1656    o adjoint
1657      * Disable useVariableViscosity for adjoint for time being
1658        (there are a number of extensive recomputations)
1659      * Initialize certain variables needed for adjoint
1660    
1661    checkpoint57w_post
1662    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1663                 fix the singleCpuIO RS version of MDSWRITEFIELD
1664       and add a WARNING if using globalFiles=T with multi-processors.
1665    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1666      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1667    o tracer advection scheme:
1668      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1669       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1670       was not very convenient).
1671      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1672       (further tests needed for the implicit DST & Flux-Limiter schemes).
1673    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1674      and sRef for convenience, handy, when you want to initialize
1675      ptracers in a large domain with a constant non-zero value. Also,
1676      untangle ptracers_init.F a little.
1677    
1678    checkpoint57v_post
1679    o change dome exp. to use variable viscosity in side-drag terms.
1680    o remove all the files from the cfc_offline test since they are now
1681      incorporated into tutorial_cfc_offline which has been producing
1682      identical results for a few days of testing
1683    o add new parameter: sideDragFactor to enable half-slip-side BC
1684      and change side-drag S/R to use viscosity from mom_calc_visc
1685      (can switch back by setting sideDragFactor=0.); affects results at
1686      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1687       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1688    o vorticity & strain are now computed without masking, to account for
1689      no-slip-side BC in variable viscosity calculation ; mask is applied
1690      anyway later on, before computing advection/coriolis terms.
1691    o modify exp4 to test new obcs support for reading from external files
1692      and for passive tracers
1693    o fix behavior of ptracers_monitor when monitor output is written to a
1694      netcdf-file; still not independent of monitor.F (writes in the same
1695      file).
1696    o change default value of tRef (put a uniform, meaningful value for ocean
1697      & atmos) and initialize sRef (was missing, as Martin mentioned).
1698    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1699      to be proportional to enstrophy dissipation length.  Thus,
1700       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1701      This is now consistent with Smagorinsky and with the manual.
1702    
1703    checkpoint57u_post
1704    o OBCS and PTRACERS: add open boundary support for passive tracers
1705      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1706        OB-values from file; this is not different from the way theta and salinity
1707        are treated
1708      - however, Orlanski-radiation conditions are not supported, and the model
1709        will stop if you use pTracers and Orlanski at the same time.
1710      - beefed up the rountine obcs_external_fields_load: now only those open
1711        boundary values are overwritten with values from files for which there
1712        are really files, otherwise the OB-fields remain untouched. This makes
1713        it possible to use different OBs at different ends of the domain (as
1714        with EXF)
1715    o reduce number of exch calls in shap_filt (s2).
1716    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1717      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1718    
1719    checkpoint57t_post
1720    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1721    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1722      same truncation, independent of the face number: affects affects several
1723      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1724    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1725      note that biharmonic viscosity + no-slip was not tested in any experiment.
1726    o fix bug in non-linear free-surf side-drag ; generate new output for
1727      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1728    o make mnc honor the writeBinaryPrec flag for most kinds of output
1729    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1730    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1731      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1732    o add brackets in multi-terms sum to get same truncation, independent of
1733      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1734      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1735    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1736      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1737      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1738      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1739      Suggested values of viscosity parameters found in mom_calc_visc.
1740      Many new viscosity diagnostics available.
1741    
1742    checkpoint57s_post
1743    o Add clearing-house for viscosity calculations, mom_calc_visc and
1744      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1745      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1746      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1747      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1748      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1749      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1750      ViscAhStrain and viscAhTension are now retired.
1751    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1752    o In response to JMC's bug report, genmake2 now ignores any soft-links
1753      that it finds in the *current* directory when searching for files.
1754      Soft-links found in any other source directories will still work as
1755      they did before.
1756    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1757      a C routine to unlimit the stack size
1758    o mnc-ify pkg/aim snapshot vars
1759    o mnc-ify pkg/land as requested by Daniel
1760    o various changes to mnc including:
1761      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1762      - output can now be grouped so that all files within a group
1763          change the ITER portion of their names in lock-step together
1764      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1765          and works with both EXCH1 and EXCH2 (but needs more testing)
1766      - writing works for all verification test cases w/ g77 on Linux
1767    
1768    checkpoint57r_post
1769    o make MNC variable initialization happen earlier
1770    o add diagnostics for (almost) each term of the momentum Eq.
1771    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1772    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1773    o remove MINIMAL_TAVE_OUTPUT option ;
1774      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1775    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1776      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1777    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1778    o add time-dependent SST, SSS control
1779    o cost terms in ecco/ modularized (new cost_generic.F)
1780    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1781    o new infrastructure for seaice model vs. obs misfits in seaice/
1782      * driver from the_main_loop.F is seaice_cost_driver.F
1783      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1784      * gradient check in Exp. 6a of natl_box_adjoint/
1785    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1786      (see README file)
1787    
1788    checkpoint57q_post
1789    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1790    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1791      - bug was reported by Jean-Michel and Ian Fenty
1792    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1793      update exp. cpl_aim+ocn output.
1794    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1795      Needed for high-res. runs with large global files
1796      to be able to limit tapelev size
1797    o Changed some tests for adjoint:
1798      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1799      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1800      * global_ocean.90x40x15/ back to default 3-level checkpointing
1801    o Modifications to enable scripted COMMON to MODULE conversion
1802      * verification/OpenAD/code/ has necessary scripts and description;
1803      * converts, compiles and runs successfully;
1804    
1805    checkpoint57p_post
1806    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1807    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1808      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1809    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1810    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1811      (was already the case for dissipation with mom_vecinv,
1812       and also the case for grad.PhiHyd when staggered-timeStep)
1813      This will allow to put dissipation out-off the AB time-stepping.
1814     Unfortunately, affects truncation error. Update output of exp. that "fails"
1815      (cg2d matching number) and leave the others for later: front_relax(10),
1816      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1817      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1818    
1819    checkpoint57o_post
1820    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1821      (2) its ready to be documented during the 20050801 DocFest
1822    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1823      for ideal_2D_oce and lab_sea on linux_ia32_g77
1824    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1825      in global1x1_tot/code_seaice_adj to access indices 32, 33
1826      (worth another tag)
1827    
1828    checkpoint57n_post
1829    o adding precip control xx_precip 32
1830    o adding swflux control xx_swflux 33
1831    o Replacing 10 forcing penalty cost routines by 1 generic.
1832    o Implementing partitioning in time-mean and variable adjustment
1833      for atmos. state.
1834    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1835    o in natl_box_adjoint:
1836      * updated exp 1 to 10
1837        (but does not have time-mean vs. variable split results yet)
1838    o updated global1x1/*_seaice_adj/
1839      to incorporate latest changes
1840    o enable useSingleCpuIO for mdsio vector routines
1841      (applies in particular to tapelev I/O)
1842    o removed inefficient K-loop in all active_file*control*.F
1843    
1844    checkpoint57m_post
1845    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1846      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1847    o pkg/exch2: filling of face-corner halo regions is optional
1848      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1849    
1850    checkpoint57l_post
1851     tag before updating tutorials (pre-release-2)
1852    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1853       for output and interpolation of input fields onto model grid)
1854    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1855       Affects results of exp. rotating_tank ; update output.txt.
1856    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1857          and taking the square quantity and/or using a fraction-weight field.
1858    o fix aim_diagnostics_init.F mate numbers.
1859    o add mnc output capability to diagnostics/diagstat and update
1860      our cvsignore files for the ACSII output generated
1861    
1862    checkpoint57k_post
1863    o lab_sea now uses diagnostics package and provides a suite of
1864      new EXF diagnostics output.
1865    
1866    checkpoint57j_post
1867    o exf
1868      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1869        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1870        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1871      * extended diagnostics output
1872        - now includes all EXF variables
1873        - hs, hl moved to common block
1874        - separate S/R for diagnostics, called after ctrl vector is added
1875        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1876        - EXFqnet contains true Qnet (i.e. includes qsw)
1877      * updated verif. lab_sea, global_with_exf
1878      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1879        to ensure that diagnostics sees a true EXFqnet
1880    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1881    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1882      several times with different frequencies.
1883    o mnc-ify the thsice package as requested by Daniel Enderton
1884      - the monitor--MNC output needs work
1885      - many attributes need to be added (most are currently blank)
1886    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1887      - many attributes need to be added (most are currently blank)
1888    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1889    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1890    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1891      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1892         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1893    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1894     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1895    
1896    checkpoint57i_post
1897    o Diagnostics package was changed: diagnostic allocation is now deactivated
1898      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1899    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1900      add 1rst Order upwind vertical Shear.
1901    o add a quick fix for A/B checkpointing in OFFLINE mode
1902    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1903      end-run around the C/Fortran linking horror in eesup/src/timers.F
1904    o added pkg/runclock: allows user to terminate run based on wall clock
1905    o added non-hydrostatic scaling parameter: nh_am2
1906    o pkg/my82: futile attempt to make results compiler-independent by adding
1907      some "_d 0", etc. no effect.
1908    o for mnc output, fill the 'T' coordinate var with myTime and create a
1909      separate 'iter' variable for iteration count
1910    o pkg/diagnostics:
1911      add new capability: output of Global/Regional & per-level statistics ;
1912      tested against monitor output (including land & thSIce) on various exp.
1913    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1914    
1915    checkpoint57h_done
1916      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1917      data.diagnostics, data.gchem, data.ptracers) is done.
1918    
1919    o pkg/diagnostics: prepare for Global/Regional statistics.
1920      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1921    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1922      and rename it: DIFFERENT_MULTIPLE
1923    
1924    checkpoint57h_post
1925    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1926    o pkg/diagnostics: change output frequency, now in seconds (instead
1927      of Nb of iterations). This requires to change data.diagnostics.
1928    checkpoint57h_pre
1929    
1930    o in mnc, let the user create the output dir if both mnc_outdir_date
1931      and mnc_outdir_num are false
1932    o add fflags() to pkg/diagnostics which allows one to specify, on a
1933      per-file basis, the file precision [default behavior is unchanged]
1934    o added diagnostics to pkg/kpp, including computation of mixed layer
1935      depth based on a temperature/density criterion
1936    o updated verification/natl_box to test the new pkg/kpp diagnostics
1937    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1938    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1939    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1940      not mnc -- this mistake was found by JMC and is now corrected
1941    
1942    checkpoint57g_post
1943    o add Adams-Bashforth 3rd Order time stepping:
1944      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1945      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1946    checkpoint57g_pre
1947    
1948    o make lambda[Theta,Salt]ClimRelax spatially varying
1949      (default remains spatially uniform constant based on tau)
1950    o added new control variables
1951      * init. uVel, vVel, etanN
1952      * lambda[Theta,Salt]ClimRelax
1953    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1954      (suggested by G. Forget)
1955    
1956    checkpoint57f_post
1957    o add parameter "baseTime" = model base time = time at iteration zero
1958      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1959      account for baseTime shift
1960    o move Coriolis arrays from PARAMS.h to GRID.h
1961    checkpoint57f_pre
1962    
1963    o mnc-ifying the seaice package
1964    o introduced an alternative length scale calculation for use in the limiting
1965      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1966    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1967    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1968      as well as grad(vort3).  Made it compatible with both approximate form
1969      for the cubed sphere and full form of these gradients.  Added flag
1970      useFullLeith to select between approximate and full form.  
1971    o add "d0" in getcon.F to reduce differences between compilers/platforms
1972      update output.txt of exp. fizhi-gridalt-hs
1973    o change port_rand funtion to allow to set the seed.
1974    o fix obscure MNC bug involving conversion between reals and integers
1975      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1976        new version is now more standards-compliant
1977    o adjoint-related modifications
1978      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1979      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1980      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1981    
1982    checkpoint57e_post
1983    o Adding eddy stress controls a la Ferreira et al.
1984    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1985    
1986    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1987      update output.txt of exp. fizhi-gridalt-hs
1988    o add more "Z" dimensions and associated coordinate vars to MNC
1989    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1990    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1991      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1992      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1993      months and years.  Requires pkg/cal.
1994    o diagnostics: add pickup functionality
1995      - off by default for backwards compatibility
1996      - current version only uses MDSIO -- MNC will be added
1997    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1998    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1999    
2000    checkpoint57d_post
2001    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2002    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2003      output from the diagnostics package
2004    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2005    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2006      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2007    o add coordinate variables to the MNC output from the diagnostics package
2008    o change MNC-flags default value: true when useMNC=TRUE
2009    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2010      the ability (off by default) to read the grid information using MNC
2011    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2012    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2013    o do snap-shot diagnostics at the middle of the time-interval (instead of
2014      at the end).
2015    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2016      new test for AIM with thSIce + slab-ocean
2017    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2018    o move state variable diagnostics to the beginning of the time step ;
2019      (note: still needs some work specially for snap-shot diagnostics)
2020      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2021    
2022    checkpoint57c_post
2023    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2024    o generate new output.txt files on faulks with g77 & the new -ieee option
2025    checkpoint57c_pre
2026    
2027    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2028      update output.txt of exp. global_ocean.90x40x15
2029    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2030      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2031    o add saltFlux(+File) forcing capability with periodicExternalForcing
2032    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2033    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2034    o improvements for the MNC output from DIAGNOSTICS:
2035      - correct handling of the unlimitied dimension
2036      - all dims now have associated coordinate variables
2037      - variables located at U, V, and Corner ("Z") points are now written
2038        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2039        *all* data points are output
2040    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2041    o added pkg/seaice/seaice_monitor.F
2042    o mdsio_readfield.F can now read files visible only to master MPI process.
2043    o pkg/seaice: some test code for ice-modified ocean stress
2044    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2045      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2046      spurious negative numbers for precipitation and humidity.  Will cause
2047      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2048    o pkg/ctrl/
2049      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2050        May be enabled via doPackDiag
2051      *  introduce z-scaling of
2052         + gradient (doZscalePack) and
2053         + control (doZscaleUnpack)
2054    o pkg/mdsio/
2055      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2056      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2057    
2058    checkpoint57b_post
2059    o simplify options in diagnostics_fill arguments (remove weird combinations)
2060    o fix MNC coordinate variables so that they now contain per-face index
2061      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2062      general, EXCH2 grids are only aligned to a "local" coordinate system
2063    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2064    o Implement instantaneous output within pkg diagnostics:
2065      setting a negative frequency in data.diagnostics produces
2066     "snap-shot" output (as opposed to time-average if freq > 0)
2067    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2068      NOTE: change ptracer diagnostics name: use 2 characters to work with
2069            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2070    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2071      becomes the coordinate variable for the 'T' dimension
2072    o add CF-style coordinate variables to MNC
2073      - just a first cut:  numbers are meaningless on the cubesphere and
2074        missing along the T axis but otherwise it works!
2075    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2076    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2077    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2078      this is based directly on what the model compute, so that the content of
2079      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2080    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2081    o clean up build options files for SunOS, in particular
2082      - remove -traditional from xmakedepend
2083      - change -xarch=v9 to -xarch=native for f77
2084      - restore use of make (not gmake)
2085      - add CC=gcc if using g77
2086    o changes per discussion of AM, JMC, & EH3 today:
2087      - move redundant "grid" variables out of "state" -- in preparation of
2088        creating proper CF-style coordinate variables and in recognition
2089        that any/all grid variables can be easily copied (eg. w/NCO) from
2090        the grid files into any of the other NetCDF files
2091      - *always* output grid variables with MDSIO (this will eventually be
2092        changed)
2093      - output MNC grid file if useMNC is true
2094    o every instance of _END_MASTER() has been found and replaced with
2095      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2096      preprocessors
2097    o re-arrange diagnostics pkg initialisation:
2098     - allow each package to extend the available diagnostics list
2099     - add some checking and fix small problems (multi-threaded, ...)
2100     - new S/R diagnostics_fill (replace fill_diagnostics):
2101       look through the short list of active diag. (instead of the long list)
2102       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2103    
2104    checkpoint57a_post
2105    o this set of changes restores TAMC compatibility
2106      tested for global_ocean.90x40x15 adjoint on trough
2107      (what a pain)
2108    
2109    checkpoint57a_pre
2110    o some modifs in tools/build_options for sunos
2111    o call ctrl_pack for ctrl at end for optimcycle=0
2112    
2113    checkpoint57
2114    o add horizontal bi-harmonic viscosity for vertical velocity
2115      - new parameter viscA4W (defaults to viscA4)
2116      - affects only non-hydrostatic code
2117      - to be done: no-slip lateral boundary conditions
2118    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2119    o implement Implicit Vertical advection for pTracers
2120    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2121      (implemented also for implicit vertical diffusion & advection)
2122    o OBCS: extend application of tracer open boundary conditions
2123      to a strip beyond the boundary of width Olx/Oly
2124    o add call monitor to TAF set of required calls (flow directives)
2125      and include in natl_box_adjoint
2126    o untangle a few ifdefs related to cost, ctrl, autodiff
2127      untangel a few ALLOW_ECCO_OPTIMIZATION
2128    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2129      (theta2, salt2 in ecco_cost_weights)
2130    
2131    checkpoint56c_post
2132    o OBCS as control variables
2133      - update ctrl_ad_diff.list, obcs_ad_diff.list
2134      - remove balance of obcs controls from default
2135      - fix index bug nobcs in ctrl_init
2136      - fix dummy fields filen in ctrl_pack
2137      - add dummy weights for obcs
2138    o lsopt: comment out fort.94 output
2139    o optim:
2140      - remove unnecessary header files
2141      - adjusted namelists
2142      - add xerbla.F to Makefile
2143    o exf:
2144      - multiple modifications of exf_check_range
2145      - unit change in exf_init_runoff from [m/year] to [m/s]
2146    o mdsio:
2147      - i/o-vector change debugLevel from debLevA to debLevB
2148    
2149    checkpoint56b_post
2150    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2151      is called from DO_THE_MODEL_IO
2152      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2153      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2154      - clean up PTRACERS_WRITE_TIMEAVE a little
2155    o add another verification experiment that tests both the cfc-pkg and
2156      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2157      reactive tendencies treated inline with regular timestepping
2158    o testreport previously did a lousy job of comparing small numbers, so
2159      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2160      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2161      testreport.
2162    o ptracers_monitor: bug fix for MPI
2163    
2164    checkpoint56a_post
2165    o GCHEM: finish reorganizating the package
2166      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2167        (introduces another 3D-array for each passive tracer, but only if
2168        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2169        gchemTendency is not needed because the timestep is done separately)
2170      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2171      - GCHEM is now---more or less cleanly---separate from PTRACERS
2172      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2173        so clear to me how that should be done in a general way.
2174    o CFC: improve formatting of output in CFC_ATMOS
2175    o PTRACERS:
2176      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2177        that ALL experiments with ptracers enable can be checked. This makes
2178        GCHEM_MONITOR obsolete.
2179      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2180        monitorFreq
2181      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2182    o add PTRACERS (PTR0[1-5]) to testreport output
2183    o exf_check_range:
2184      * default changed to .TRUE.
2185      * will check values for niter0 if debLevA, every timestep if debLevB
2186      * STOP in exf_check_range if 'out of range'
2187      * range chosen generous to allow for potential extema
2188      TBD: a version with stricter range
2189           permitted range would be runtime parameters
2190  o GMredi:  o GMredi:
2191    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2192    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2195  o GCHEM:
2195    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2196      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2197    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2198      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2199        this flag is now only visible within GCHEM-pkg routines.
2200      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2201        be replaced by a 3D array that is computed before thermodynamics; for
2202        this, the tracer ID iTracer had to be included into the parameter list
2203        of ptracers_forcing
2204      - set up forward_step to call gchem_forcing, that will replace
2205        gchem_forcing_int in ptracers_forcing
2206      - cleaning up
2207  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2208    
2209  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2422  o add two new packages
2422    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2423    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2424      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2425      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2426  o add offline package  o add offline package
2427  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2428    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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