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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1081 by mlosch, Fri Mar 20 16:04:38 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      - SEAICE_clipVelocities  = .false. is now the default
23                                         (as per J. Zhang's recommendation)
24      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
25        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
26      - seaice_growth: replace computation of UG by a simple copy from wspeed
27    
28    checkpoint61k
29    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
30      seaice_lsr: fixed a few metric terms,
31                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
32                  add more debugging diagnostics
33      seaice_evp: removed superfluous many metric terms of FV discretization
34                  of stress divergence
35                  affects lab_sea, lab_sea.hb87
36      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
37                  of stress divergence for non-evp solver
38                  (this part is not tested anywhere)
39      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
40                  they were effectively only half slip
41                  affects lab_sea.hb87
42      updated all relevant verification experiments
43    
44    checkpoint61j
45    o pkg/seaice: turn a few hard wired parameters into run time parameters
46    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
47      time in seconds as promised by the usints in seaice_monitor and exf_monitor
48    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
49      that are not cubed-sphere grids
50    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
51    o pkg/ctrl:
52      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
53    o non-hydrostatic (calc_gw.F):
54      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
55      update output of exp. global_ocean.cs32x15.viscA4
56    o remove backward compatibility for thetaMin,phiMin
57      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
58    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
59      interpolated wind field not only for curvilineargrid=.true., but also
60      for a rotated grid (rotateGrid=.true.)
61    o pkg/exf: add capability to bypass interpolation for runoff
62      by setting yet another CPP-flag
63    o eesupp/src, B-grid exchange:
64      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
65    o autodiff
66      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
67      allows to switch to single-prec common blocks;
68      corresponding switch occurs in tamc.h, integer isbyte
69      TAF store directivs "byte" and "kind" seem equivalent;
70      Most tamc.h have been updated correspondingly.
71    
72    checkpoint61i
73    o autodiff:
74      fix autodiff_sore/_restore indices for obcs
75      (spotted by I. Hoteit, M. Mazloff)
76    o pkg/autodiff, pkg/ctrl:
77      Add flag to reduce all tapelev I/O to single-prec.
78      In data.ctrl set
79        doSinglePrecTapelev = .TRUE.
80    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
81      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
82    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
83      real fresh water flux (not yet)
84    o pkg/mdsio & rw:
85     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
86     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
87    o pkg/flt:
88     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
89       init_fixed & ini_varia.
90     - clean-up & simplify linear interpolation S/R:
91       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
92     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
93     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
94     - add vert. coordinate & horiz. indices to output files.
95     - change vertical position in initial condition, from index to depth [m].
96     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
97       (easier to get to a curvilinear grid) ; delX,delY no longer used.
98    o pkg/ggl90: a few modifications:
99     - fix bottom boundary condition, and interpolation of KappaE
100       near top and bottom
101     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
102     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
103     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
104    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
105      (maintain temporary backward compatibility, until next checkpoint)
106    
107    checkpoint61h
108    o pkg/diagnostics with "periodic averaging diagnostics":
109      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
110    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
111    o pkg/obcs: fix loop ranges for balancing code
112    o pkg/flt:
113     - improve criteria for finding which tile owns a float.
114     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
115    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
116      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
117      with ocean biogeo)
118    o pkg/flt:
119     - do some cleaning and fix the restart ;
120     - add output.txt in flt_example/results to get this pkg tested.
121    o genmake2: add an EXTENDED_SRC option and flag.
122       for now, cannot be turned on on command line (only through genmake_local)
123    o pkg/mdsio: read/write vector:
124     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
125     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
126       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
127     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
128      (drop to 4 digits matching for grad). But this test does not look very
129      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
130    
131    checkpoint61g
132    o pkg/flt:
133      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
134       + make OPTIONS file more standard.
135      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
136      - fix _BYTESWAPIO CPP-Flag
137      - standard reading of file-parameter "data.flt"
138      - fix argument list of S/R FLT_RESTART
139      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
140    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
141    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
142      a still unfixed compiler/optimization bug
143    
144    checkpoint61f
145    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
146      update results of global_ocean.cs32x15.icedyn test.
147    o move getcon.F from model/src to pkg/fizhi.
148    o pkg/exf: add parameter for extrapolation of temp up to the surface
149       and option to prevent negative evap (in bulk_largeyeager04 only).
150    o Prather Advection scheme: fix tracer conservation for divergent flow
151      (e.g., when using NonLin Free-Surface).
152    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
153    o gmredi (Visbeck-variable-K):
154     - add more parameters to Visbeck-variable-K.
155     - use a 5 points average for dSigmaR in Visbeck-K calculation
156       (more "homogenous": same stencil and same weights as in dSigmaH)
157     - update output of ideal_2D_oce experiment.
158    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
159      (#undef REAL4_IS_SLOW)
160     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
161       coordinate variable
162     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
163       (surface forcing fields), removes some of the functionality
164     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
165     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
166       probably not all: copy _RS surface flux fields to RL field before
167       calling DIAGNOSTICS_FILL
168     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
169       real*4 (CALL EXCH_*_RS) versions.
170     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
171       (generate new output).
172    
173    checkpoint61e
174    o gmredi (Visbeck-variable-K):
175      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
176      - change computation of Visbeck-K where Slope > Smax :        
177        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
178        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
179    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
180      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
181    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
182    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
183      does not become too large (to avoid precision problems in implicit-diffusion
184      solver); update ideal_2D_oce output.
185    o pkg ggl90:
186      - in ggl90_cal.F: compute only one set of visc/diff, used to
187        step forward TKE/T/S/momentum
188      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
189        have Prandlt =1)
190    o gmredi (fm07):
191      - add lower limit on Transition layer thickness + lower limit on 1/lambda
192      - allow to set few more params from data.gmredi
193    o pkg ggl90:
194          - add missing sqrt(2) factor in computation of mixing length
195            scale in ggl90_calc.F
196            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
197    
198    checkpoint61d
199    o adjoint modifs
200      - adapt to new field rhoInSitu
201      - allow to revert from StoreDynVars2D, StoreDynVars3D
202        to individual fields
203        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
204    o store 3-D (in-situ) density in commom block (DYNVARS.h)
205     - save 1 rho computation.
206     - no longer modify T & S inland when using down_slope pkg.
207    o gad_som : allow to switch to SOM advection for T & S without corresponding
208      pickup files (using new S/R: MDS_CHECK4FILE).
209    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
210      (for useSingleCpuIO to work in multi-threaded)
211    o pkg/shelfice:
212     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
213       with SHELFICEtopoFile in data.shelfice
214     - move code for reading ice shelf topography and modifying hFacC into separate
215       subroutines of the shelfice package
216     - separate initialisation of "fixed" and "variable" variables
217     - kTopC is not (yet) replaced by kSurfC, although this is possible
218    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
219    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
220      and rename:
221      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
222      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
223    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
224    
225    checkpoint61c
226    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
227      to add mass source/sink of fluid in the interior (3-D generalisation
228      of oceanic real-fresh water flux).
229    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
230    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
231    o new pkg: down_slope
232      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
233      - presently, modify T & S inland (dwnslp_calc_rho.F).
234        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
235      - implementation for ocean in P-coords not tested.
236      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
237    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
238      (to facilitate conversion of oceanic pkg to p-coordinate).
239    o change FIND_RHO to FIND_RHO_2D :
240      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
241    o new pkg: cheapaml
242    
243    checkpoint61b
244    o exch2:
245      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
246      - no longer depend on the order sequence (N,S,E,W).
247      - 3rd exchange no longer needed (tested with 24 tiles).
248      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
249      - exch_UV_A-grid readily available (but not yet tested).
250      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
251      (both are no longer needed) in exch_uv: no effect in forward run; but
252       get truncation error differences with adjoint exch.
253    o exch2:
254     - change index-bounds storage (moved from target to local tile,
255       more intuitive this way) ; rename/remove some variables.
256     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
257    
258    checkpoint61a
259    o exch2/matlab-topology-generator:
260      fix bug in index bounds for N-S internal exchange (hard to tell if this
261      had any effect on the solution).
262    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
263      is exceeded
264    o testreport: modify syntax of awk, so that it works also with
265      awk, and not only with nawk and gawk
266    
267    checkpoint61
268    o autodiff
269      Change default for TAF usage by removing argument '-nonew_arg'
270      This changes TAF subroutine argument list (ordering of active var.)
271      Omission of this flag leads to incompatibility w.r.t. TAMC
272      To restore TAMC-compatibility, need following modifs:
273      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
274      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
275      Tested TAF version is 1.9.22
276      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
277    
278    checkpoint60
279    --->>> This is the last checkpoint for which generating the adjoint
280    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
281    --->>> by default.
282    --->>> Future checkpoints will ommit this flag by default.
283    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
284    o pkg/grdchk: Add gradient check to etan0 perturbations.
285    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
286    o pkg/autodiff: more flexibility in zeroadj.
287      model/src: modifying do_oceanic_phys.F accordingly.
288    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
289    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
290      special setup of gmredi for which the adjoint is stable
291      enough for parameter optimization.
292    o bridging the gap between eddy stress and GM.
293      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
294          along with a change in CPP option (now ALLOW_EDDYPSI).
295      -> when using GM w/ GM_AdvForm:
296          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
297          is applied either in the tracer Eq. or in momentum Eq.
298          depending on data.gmredi (intro. GM_InMomAsStress).
299      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
300      The key modifications are in model/src/taueddy_external_forcing.F
301      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
302    
303    checkpoint59r
304    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
305      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
306      fix option to read coriolis(@ cell-corner) from files with CS-grid.
307    o pkg/mnc: add some attributes to standard 1D-coordinate variables
308    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
309      mass points, when using mnc for output
310      - add runtime parameter (missing_value, missing_value_int) to override
311        default (which is the value of getcon('UNDEF'))
312    o pkg/mnc: prepare mnc for the actual use of missing values with the
313      diagnostics package: small fix in mnc_cw_readwrite.template and more
314      initialisation of never used fields
315      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
316      versions
317    o pkg/thsice/thsice_ini_vars.F added default initial values so that
318      thermodynamics sea ice solver does not blow up when some initial fields
319      are missing.
320    o move from external_forcing_surf.F to ini_forcing.F
321      the p-coord. hack consisting in using pLoad to set phi0surf ;
322      update output of tutorial_global_oce_in_p (affected @ truncation level).
323    o Freshen up a bit hs94.1x64x5, notably:
324      remove rotationPeriod and tRef=5*0. (adjoint only), and add
325      exactConserv=.TRUE.
326    o pkg/generic_advdiff:
327      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
328      applies to files where Temperature & Salinity 2nd Order moments are used.
329    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
330      this uses a dynamically allocated internal state data structure
331      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
332      and requires a fortran 90 compiler
333    
334    checkpoint59q
335    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
336       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
337    o Refresh tutorial_global_oce_biogeo, notably:
338      - change bathymetry (put back seamounts in ACC, use hFacs)
339      - change EOS (POLY3 --> JMD95Z)
340      - use Bryan-Lewis vertical diffusivity
341      - use multidimensional advection
342      - remove old virtual virtual in dic pkg, now done through ptracer pkg
343      - change a couple of parameters in dic pkg
344    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
345    o pkg/obcs: change default to OBCSfixTopo = .true.,
346      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
347      - replace "debugMode" with "debugLevel .GE. debLevB"
348    o implementation of TAF directives for gchem,cfc,dic
349    o remove "exp5" (replaced by tutorial_deep_convection).
350    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
351      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
352      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
353      --> changes results in exp4, seaice_obcs
354    o tutorial_deep_convection :
355      update the set-up and increase resolution and domain size ; start
356      from pseudo initial conditions = output at t=120mn in order to see
357      something happening when running testreport.
358    o pkg/seaice: add os7mp as an advection scheme
359                  add check for advection schemes
360                  add a flag for restoring T and S underneath sea ice
361    o pkg/my82: add netcdf-support and diagnostics
362    o thsice pkg:
363      - Now hsMax limits snow height by turning it into ice following
364        flooding scheme (and now conserving energy)
365      - Slight rewriting of the formula in thsice_calc_thick.F
366      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
367      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
368    
369    checkpoint59p
370    o gchem / dic / cfc :
371      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
372      - add new parameter files: "data.dic" & "data.cfc" ;
373      - various re-arrangement in initialisation & header file ;
374      - fix tutorial_global_oce_biogeo for multi-threaded test.
375    o pkg/dic: test for "pickup_dic" file when restarting ;
376      if no pickup-file, can restart with a re-initialised pH (same as it did
377      before) providing pickupStrictlyMatch is set to False.
378    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
379      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
380    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
381      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
382    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
383     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
384       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
385    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
386       scheme to use for vorticty-term ;
387     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
388       (with default selectVortScheme, return to original discretisation)
389     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
390    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
391    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
392      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
393      also fix diagnostics VISCAHW & VISCA4W.
394    
395    checkpoint59o
396    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
397    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
398      move a few statemens out the main loop into separate loops
399    o pkg/shelfice:
400      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
401        (kg/m^2/s), does not break tests, because in verification/isomip,
402        rhoConstFresh=rhoConst (by accident)
403      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
404      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
405        new file model/src/seawater.F, so that they are available for all pkgs.
406      - convert potential temperature into in-situ temperature. This changes the
407        isomip tests => update tests
408    o add a flag writePickupAtEnd (default=true) to be able to suppress
409      writing a pickup at the last timestep
410    o tools/mpack-1.6 :
411      - disable automake (not working) and autoconf (not needed).
412      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
413        also cleaner with much less compilation warnings.
414    o pkg/profiles:
415      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
416      (for "less than 32 characters name" compiler requirement)
417    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
418      conditions that have a different sampling frequency than S/T/U/V obcs
419    o pkg/diagnostics (stats-diags):
420      - fix global Min/Max in case 1 processor get only empty tiles
421    o genmake2: replace (4 times)
422         make genmake_tc_1.o >> genmake_warnings 2>&1
423      with
424         COMM="$CC $CFLAGS -c genmake_tc_1.c"
425         echo $COMM >> genmake_warnings
426         $COMM >> genmake_warnings 2>&1
427      to make genmake2 always see the value of CC as specified in the optfile.
428    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
429      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
430      - modify verification advect_cs test to test SOM-advection on CS-grid.
431    o pkg/ctrl:
432      - Rewrite of ctrl_map_ini_ecco.F,
433        introducing a generic routine (ctrl_map_ini_gen.F).
434      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
435    
436    checkpoint59n
437    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
438      number in dedicate array "hdiag":
439      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
440        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
441      - many small changes (integer format) for large number of diagnostics
442      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
443        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
444    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
445      usingSphericalGrid, this allows to define the rotated grid coordinates
446      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
447      geographical coordinates according to the inverse of the rotation defined
448      by the Euler angles, so that Coriolis parameter and online-interpolation by
449      exf works with the geographical coordinates on XC/YC/XG/YG.
450      Naturally, this feature does not work with all packages, so some
451      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
452      profiles), because there the coordinates are assumed to be regular
453      spherical grid coordinates.
454    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
455      - introduce isopycnal diffusion coefficient control.
456    o tools/adjoint_options:
457      - additional control vector components.
458    o pkg/mnc: have mnc create marginally meaning full coordinate variables
459      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
460    o pkg/mypackage:
461      - add example of read/write pickup for state-var ;
462      - add entry points to the main code for state-vars diags & write-pickup.
463    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
464      transitions for useExfYearlyFields
465      - add new subroutine that determines the file to read from for
466        use*YearlyFields = .TRUE. and .FALSE.
467      - add a verification experiment to global_with_exf that tests
468        useExfYearlyFields with USE_EXF_INTERPOLATION defined
469    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
470      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
471      subroutines (which could be generated from a template, because they are
472      almost identical), for now they are included in obcs_prescribe_read.F for
473      simplicity
474    o pkg/exf:
475      - add a little more diagnostic to exf_interp_read (in analogy to
476        mds_read_field, can be turned off with debugLevel < debugLevA=1)
477      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
478        ugly but fast by unrolling short inner loops, inserting a unroll=8
479        directive in routine lagran, and splitting a loop and making do while the
480        outermost loop (the latter requires the intoduction of index arrays)
481    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
482    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
483      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
484    o verification/seaice_obcs: updated for restart test and latest options
485    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
486      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
487      for now this is only available for the C-grid code and also within
488      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
489    
490    checkpoint59m
491    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
492      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
493    o gad_som : fix flux output (& diagnostics) to have same units as other  
494      advection scheme fluxes (was previously multiplied by deltaT).  
495    o added verification/seaice_obcs both to test seaice open boundaries
496      and to provide an example matlab scrpt for generating them
497    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
498    o pkg/salt_plume: clean up salt_plume_frac.F to
499      remove redundancy in PlumeMethod 1 and 4
500    o pkg/kpp: added saltplume diagnostics
501    o pkg/obcs and pkg/seaice:
502      - do not set uice and vice to zero when OB*icefile are unspecified
503      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
504      - moved seaice tracer obcs after call to seaice_growth
505    o pkg/salt_plume: added various options for salt plume depth
506      criterion and for vertical distribution of the salt
507    
508    checkpoint59l
509    o pkg/ptracers: new version of ptracers pickup:
510      read meta file and write only fields which are needed to restart.
511      ( same logic as main pickup file ; also using pickupStrictlyMatch )
512    o pkg/seaice:
513      - add timescale for melting due to warm mixed layer as a means of
514        setting SEAICE_availHeatFrac more conveniently
515      - add a CPP-flag/runtime parameter check for flooding algorithm
516      - reformulated availHeat in seaice_growth.F to be independent of AREA
517    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
518      unit changes
519    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
520    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
521      SX vector computer.
522    o pkg/seaice:
523      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
524        seaice forcing fields can now be read only through pkg/exf
525      - removed some unused halos
526    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
527    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
528      or U/VICE from U/VWIND before computing U/VSTRESS
529    
530    checkpoint59k
531    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
532      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
533    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
534      all experiments pass when compile with un-initialised var. checking option.
535    o added pkg/salt_plume
536    o script to test restart (for now, in MITgcm_contrib/jmc_script)
537    o pkg/seaice: new read/write pickup version.
538      read meta file and write only fields which are needed to restart.
539      ( same logic as main pickup file ; also using pickupStrictlyMatch )
540    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
541    o lab_sea.hb87: modify the domain & update output.hb87.txt :
542      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
543      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
544      process. Fixed here by closing the domain at the Northern boundary.
545    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
546    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
547      a set of consecutive levels in/from a 3-D array.
548    o pkg/ptracers:
549      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
550      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
551    
552    checkpoint59j
553    o in pkgs: dic, obcs, offline, rbcs:
554      standard way to compute coeff. for time interpolation between 2 time reccords
555      which retains full precision (& make results less dependent on compiler).
556      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
557    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
558      packages instead of reading ice cover and wind speed separately
559    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
560     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
561      to allow to compile customized code before the update)
562    o cleaning-up:
563      - fix CPP instruction syntax in pkg/obcs
564      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
565        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
566      - fix some threads issue in IO parts.
567    o pkg/dic:
568      - add tons of "_d 0" (--> much better testreports !)
569       and then update outputs of tutorial_global_oce_biogeo
570    o pkg/mom_fluxform:
571      add a special version of momentum advection intended to conserve momentum
572      next to a bathymetry step or a coastline edge. (default = off = #undef)
573    o new read/write pickup version:
574      - for now, only implemented for main (mdsio) pickup file.
575      - write out only what is needed to restart; merge pickup_nh , pickup_ph
576        and main pickup together.
577      - read meta file; read only what is needed to restart; stop if a field
578        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
579        if it make sense (even if the restart is not perfect).
580      - if no meta file, assume that pickup to read corresponds exactly to
581        a pickup that would currently be written.
582      - read pickup written in the old format (until checkpoint59i) if it
583        recognizes an old meta file (no field-list).
584      - add a meta file in exp. which starts from a pickup: 2 cases:
585        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
586         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
587        b) a meta file describing the content of the associated pickup file
588         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
589    o pkg/mdsio & pkg/rw:
590      - new routine to read a meta file ; new set of routine to read
591        Multiple-fields file (with meta file).
592    o added open boundary conditions capability for seaice
593        HSNOW, HSALT, UICE, and VICE
594    
595    checkpoint59i
596    o adjoint:
597      * fix multiDimAdvection adjoint
598        (partial recomputation problem by TAF for fVerT(:,:,kDown)
599        and comlev1 size definition (maxpass vs. max. number of tracers)
600      * verification/global_ocean.90x45x15 adjoint now tests
601        NLFS and multiDimAdvection using DST3 (=30)
602      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
603    o pkg/kpp: add "_d 0" to real constant (if missing);
604      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
605      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
606    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
607      for internal parameters related to restart process (formerly from PARAMS.h)
608      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
609    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
610      as argument. (only atm2d & obcs write_pickup have not yet been updated)
611    o pkg/monitor:
612      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
613      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
614      - account for deep Atmosphere factor and density factor (anelastic)
615    o added open boundary conditions capability for seaice HEFF and AREA
616    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
617      thermodynamics
618      - requires a little reorganization, which affects the testreport results
619        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
620        so that now the conservative form is tested
621      - add a few comments
622    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
623    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
624    o add new diagnostics to seaice: advective, diffusive fluxes (only for
625      multidim-advection, for scheme 2 they are not filled) and transports,
626      thermodynamic growth rates
627    o change units of EmPmR (inside the code, + within coupling interface)
628      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
629      Affects results @ truncation level (cg2d match) and update output of
630       experiments: lab_sea(6), global_ocean.90x40x15(10),
631      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
632      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
633      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
634      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
635    
636    checkpoint59h
637    o pkg/exf:
638      - improve vectorization by moving if-statement out of loops in
639        exf_mapfields, exf_radiation
640      - exf_bulkformulae.F: introduce 2D fields and vectorize code
641    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
642    o testreport:
643      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
644        monitor & update offline_exf_seaice exp. output.
645      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
646    o pkg/seaice:
647      - bug fix in the evp solver: boundary conditions were affected be
648        masking of zMax/zMin (changes results)
649      - minor bug fix in boundary conditions in seaice_calc_strainrates
650        (changes results for no_slip)
651      - seaice_lsr.F: make interpolation of eta dependent on boundaries
652      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
653      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
654        stress formulation and no-slip boundary conditions
655    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
656      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
657    o pkg/seaice: a first HSALT time stepping equation has been checked in
658    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
659      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
660      without requiring DO-IF statements
661    o pkg/thsice:
662      use continuous power-law function for partition of energy between lateral
663      melting/freezing and thinning/thickening ; old code using step function
664      still available with #undef THSICE_FRACEN_POWERLAW
665      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
666    o testreport: change AD testing : check against results/output_adm.txt
667      using same scripts as for forward test.
668    
669    checkpoint59g
670    o adjoint testing: in preparation for changing testreport:
671      - output format: cost and grad written on separated lines
672      - ad output results in directory "results" (instead of "results_ad")
673    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
674    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
675    o pkg/ecco: allow user defined cost function contributions
676    o testreport:
677      Allow to choose (per experiment) the list of tested output variables
678       and the main variable (used to issue a pass/FAIL ) ;
679      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
680      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
681      Also modify printing of summary:
682       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
683       b) echo the list of tested variables in the individual summary.txt of
684          each experiment.
685    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
686      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
687      (but still depend on the tile decompostion of the domain).
688    o pkg/seaice: change a discretization detail to make the B-grid code
689      "more symmetric". This change is likely to remove all "ridges/leads" that
690      where quasi-aligned with the grid in B-grid solutions. It may also be
691      the solution to the stress coupling issues with the B-grid.
692    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
693      remove .cvsignore from input dir. (since testreport no longer run here).
694    o pkg/thsice:
695     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
696     - fix reshaping of sea-ice just after advection:
697       melt all the ice only if ice-volume is too small.
698     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
699       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
700     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
701    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
702      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
703    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
704      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
705      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
706      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
707      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
708      -> update output.txt
709    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
710     this affects truncation error: -> update output.txt of exp:
711      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
712      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
713    
714    checkpoint59f
715    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
716    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
717      a bounded range (in forward mode)
718    o pkg/ecco, ctrl, autodiff and mom_common:
719     internal parameter controls, completements of implementations
720    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
721    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
722      (not seem any difference in testing results).
723    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
724       at face corners.
725    o pkg/generic_advdiff:
726     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
727      loop range indices for computing vertical advection tendency
728      and do the calculation in the interior only (no overlap) ;
729      for now, only implemented for SOM advection (to save CPU time).
730     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
731    o exch2 adjoint
732      First set of changes:
733      - add exch2 hand-written adjoint templates
734      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
735        This will require cleanup in pkg/autodiff/*.F
736        (changed routines currently kept separate in verif. code/)
737      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
738        that used to hide exch2 or cubed-sphere specific code
739        (commented via 'cph-exch2')
740    o pkg/seaice
741      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
742    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
743       output of global_ocean.cs32x15.thsice .
744    
745    checkpoint59e
746    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
747      for B-grid vector (not yet tested) and C-grid vector (<- only used
748      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
749    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
750      (#ifdef ALLOW_SALT_PLUME)
751    o gather_2d/scatter_2d: removed halo regions
752    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
753      scheme and the corresponding test case (under front_relax dir). For now,
754      only available with Skew-flux form and not yet tested in realistic set-up.
755      adjoint: store directives updated, but gradient checks deteriorated,
756      so maybe GM/Redi adjoint is now broken.
757    o seaice adjoint
758      * add AREA, HEFF, HSNOW as control variable
759        (should not change lab_sea results)
760      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
761    o pkg/seaice:
762      * added computation of saltFlux in seaice_growth;
763        For time being, sea ice salinity is assumed constant
764        contribution of snow flooding to freshening of sea ice is neglected.
765        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
766        defaults to 0.0 in order to maintain backward compatibility.
767        Typical values for SEAICE_salinity are 4 to 10 g/kg.
768      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
769      * added SEAICE_availHeatFrac, which specifies fraction of surface level
770        heat content used to melt or grow ice
771      * commented out cap of HICE: it helps keep ice thinner
772      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
773      * applied OBCS T/S mask to HEFFM sea ice mask
774    
775    checkpoint59d
776    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
777     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
778     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
779    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
780     and change default value of parameter "GM_Small_Number";
781     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
782       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
783       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
784    o pkg/ecco: cost function when applying pkg/smooth to controls
785    o pkg/ctrl: add forcingPrecond run time parameter
786    o pkg/seaice:
787     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
788     - fix bug in metric terms of u-equation in LSR solver (implicit part),
789       changes verification/lab_sea
790     - rearrange implicit part of u-equation in LSR solver to make it easier to
791       read, understand, and debug. This causes changes at the truncation level.
792     - fix (serious) bug in the boundary conditions (sign error in the implicit
793       part) of the LSR solver. Changes all LSR results.
794     - fixed problem with HSNOW initialization to avoid thick snow when AREA
795       is initilized with small values - does not change lab_sea results.
796     - added HsnowFile initialization capability
797    o pkg/smooth: addition to model/src and pkg/ctrl so allow
798     initialization of pkg/smooth and application to control vector
799    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
800    o dependencies: pkg/profiles requires pkg/cal
801    o pkg/profiles:
802     - added option ALLOW_PROFILES_GENERICGRID
803         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
804         that interpolation information (grid points and coefficients) is provided
805         within the netcdf input files.
806         -> sample matlab scripts can be found in MITgcm_contrib/gael
807         that allow you to prepare netcdf input files.
808     - also modified: cleaner include statements, cleaner error print statements,
809       cleaner stops when error, and more tests of the netcdf input files consistency.
810    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
811    o pkg/seaice:
812     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
813       requires a new routine: seaice_diagnostics_fill.F
814     - make sure that seaice does not move if not forced (pressure replacement
815       method, Hibler and Ip, 1995), changes results
816     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
817     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
818       It is turned off by default (=-1.), because it changes the results.
819     - make it possible to read AREA from a file, too.
820    
821    checkpoint59c
822    o add S/R and diagnostics for oceanic mixed-layer depth
823    o move GMRedi call after all vertical mixing schemes (including KPP)
824    o pkg/thsice:
825     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
826      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
827    o pkg/obcs:
828     - bug fix for balance code
829    o pkg/seaice:
830      - allow values of SEAICE_elasticParm > 1
831      - add new parameter SEAICE_evpTauRelax as an alternative
832        to SEAICE_elasticParm
833      - make lsr boundary conditions free slip (by default), changes result
834      - add code for no slip boundary conditions for lsr
835      - set minimum of zeta to zero (and not 4e8) (changes results)
836      - add a cap on AREA after advecting AREA if seaice_growth is not called
837    o change calculation of Visbeck K:
838      - no longer depend on tapering scheme; instead, compute slope (limited
839        by GM_maxSlope). this is equivalent to what was comuted before with
840        clipping or linear tappering.
841      - fix vertical averaging (wrong by 1/2 level)
842      - leave the old version (but will not be maintained) within
843        #ifdef OLD_VISBECK_CALC / #endif
844      - update output of exp. ideal_2D_oce
845    o change error catch in calc_r_star to improve vectorization
846    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
847      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
848    o adjoint:
849      Re-organized adjoint checkpointing according to Matt Mazloff
850      (but with modifs/completions/cleanups)
851      Storing is now bundled into large arrays to optimized I/O
852      (and second step in cleanup of the_main_loop)
853    
854    checkpoint59b
855    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
856      - export/import (between ocean & coupler) fields needed for ocean DIC.
857    o pkg/seaice:
858      - get rid of three more exchanges seaice_calc_viscosities (required
859        different loop boundaries in seaice_lsr and seaice_ocean_stress)
860      - bug fix in seaice_ocean_stress (update of lab_sea required)
861      - reduce loop boundaries to necessary minimum also in seaice_evp
862      - go back to the old way of computing deltaC/Z as the adjoint likes that
863        better
864    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
865      passive tracer to an Age Tracer) + update output.txt
866    o pkg/exf:
867      - implement A-grid / C-grid selection for wind-stress input files.
868      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
869      for now, in exf_bulk_largeyeager04.F only :
870      - change implementation for case where windspeed + 2. components wind-stress
871        are read-in. AND use rhoConstFresh to convert evap.
872    o pkg/seaice:
873      - use correct EXCH_UV for wind-forcing (on A-grid).
874      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
875        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
876    o pkg/exf:
877      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
878      EXF_INTERPOLATION:
879      - merge global_with_exf/code version of exf_interp_read.F
880        to the main code ;
881      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
882        reading the file ; Important: This options needs to be defined to recover
883        previous code.
884        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
885      - no longer loose real*8 precision along the way when using exf_iprec=64.
886    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
887      - change discretisation of evp-solver in order to avoid another exchange
888        (changes lab_sea) and clean up a little
889      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
890        help the adjoint (this also changes the results slightly)
891      - add a few "_d 0" where they had been missing in seaice_evp.F
892      - cleaning up: remove unused seaice_calc_rhs.F
893    o pkg/exf: some cleaning-up:
894      - change various "constants" into runtime parameters
895      - cleaned-up Large&Yeager04 routine which should eventually
896        replace exf_bulkformulae.F (changed names of S/R and CPP)
897        and merged various ALLOW_ATM_WIND options
898     only used with thsice pkg (in thsice_get_exf.F):
899      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
900        which are used when useStabilityFct_overIce=TRUE (= the default)
901      - change default values of ice & snow emissivity and scale downward LW
902        by ice & snow emissivity.
903    o pkg/thsice:
904     fix few little problems, in thsice_calc_thickn.F:
905      - growth vertically (and not laterally) if iceFrac == iceMaskMax
906      - melt only laterally if hIce < hThinIce (as the comments say)
907      and in thsice_extend.F:
908      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
909      - start to form ice as soon as the minimum ice-volume is reachable.
910     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
911      and cpl_aim+ocn
912    o pkg/kpp
913     - move computation of surface related input fields to KPP into a new
914       subroutine kpp_forcing_surf.F
915     - remove wrong (within bi,bj loops) EXCH calls.
916     - little cleaning (add argument myThid in last position, cvs header ...)
917     - for now, fix conservation problem by exchanging KPPviscAz (may not
918       be the best fix)
919    o pkg/seaice
920     - check for inconsistent evp parameter/cpp-flag combination
921     - remove leftover errIO flat for obsolete name list error handling
922    o OpenAD
923     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
924    
925    checkpoint59a
926    o pkg/seaice: some parameter clarifications and a little bit of clean up
927    o pkg/thsice: rename run-time parameters:
928       himin       -> hIceMin
929       himin0      -> hThinIce
930       hihig       -> hThickIce
931       i0          -> i0swFrac
932       transCoef   -> bMeltCoef
933       frac_energy -> fracMelting
934      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
935       with default values (for now) that do not change the results.
936      remove old version of thsice vars advection in pkg/seaice.
937    o in FFIELDS.h:
938      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
939      - make pLoad & sIceLoad always available (but still only used if
940         ATMOSPHERIC_LOADING is #define).
941    o pkg/kpp: replaced _KPP_RL with _RL
942    o bug fixes for vertical diffusivity computations when both KPP and
943        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
944        are no longer updating the vertical diffusivity array
945        (passed as argument) but are (re-) setting those arrays.
946    o pkg/seaice: fix bug in evp solver, while doing that
947      - change (improve?) discretization of stress computations for both
948        cgrid-lsr and evp solver
949      - add a new routine to compute strain rates
950      - the above changes lab_sea results
951      - add no slip conditions for evp solver (off by default), lsr-version
952        may follow
953      - fix exchange for shear at Z-points (does not change lab_sea)
954      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
955        (to force the user to pick a time step since there is not "safe" way
956        of choosing it)
957      - add principal stress diagnostics
958      - rearrange fields for evp a little to avoid having to call a: too many
959        exchanges and b: exchanges for stress trensor components which we do
960        not have.
961      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
962        of evp, complete rewrite for lsr case (latter is does not yet work
963        in all cases)
964    o pkg/kpp: add code to have mixing in shelf ice caverns
965      - add myThid to all kpp routines (long overdue)
966    
967    checkpoint59
968    o pkg/exf:
969      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
970        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
971      - move exf header files from lower_case.h to UPPER_CASE.h ;
972        add missing cvs Header & Name
973      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
974      - add namelist param. selectStressGridPosition, exf_monFreq
975      - retire many _CLIM routines, and remove data.exf_clim
976        + params moved to data.exf
977        + climsst, climsss now handled by exf_set_gen, i.e.
978          climss?period=0 refers to constant field,
979          climss?period=-12 to monthly forcing
980      - split up namelists in data.exf
981    o pkg/seaice:
982      - remove seaice_exch and seaice_exch_uv
983      - remove superfluous exchange of theta
984      - add myThid to seaice_budget_ocean/ice
985      - add new interface for atmospheric wind forcing (C-grid only)
986        + new routine
987        + two new field (taux, tauy for stress over ice)
988        + removed one global field (DAIRN) for C-grid case only
989    o pkg/thsise
990      - 2nd set of modifs for thsice adjoint in conjunction with exf
991    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
992    
993    checkpoint58y_post
994    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
995      vertical diffusivity, similar to that in MOM4; turned on using
996      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
997      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
998    o Added capability for 3D specification of background vertical diffusion
999      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1000      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1001      "data" file that contains the 3D vertical diffusivity coefficients.
1002    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1003      - add code within pkg thsice to advect & diffuse sea-ice fields
1004      similar to (and will replace) what has been added in  seaice_advdiff.F,
1005      but: - conserving Mass, Heat & Salt.
1006           - better when using non-linear advection scheme (not yet fully tested)
1007           - can also be used in atmospheric set-up (for now, only the diffusion).
1008    
1009    checkpoint58x_post
1010    o IO option for global-file compact format:
1011      - add options when generating topology (utils/exch2/matlab-topology-generator)
1012      - add I/O capability (pkg/mdsio).
1013      - adapt utils/matlab/rdmds.m to read this format.
1014      for now long-line format not yet supported by pkg/mdsio (& exch2).
1015    o shelfice: add a few diagnostics
1016    
1017    checkpoint58w_post
1018    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1019      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1020      (and replace horiVertRatio in NH code).
1021      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1022                         and tutorial_plume_on_slope (sensitive to truncation)
1023    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1024      directly to drive seaice model (C-grid only)
1025    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1026     - reintroduce computation of wind from stress,
1027     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1028       mass points to avoid tau = 0
1029     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1030    o rdmnc.m: make it work with "global" files created with gluemnc
1031    o rdmnc.m : some improvements in dealing with singleton dimension
1032      (tested on all testreport mnc output files).
1033    o genmake2: disable pkg/profiles if netcdf test fails.
1034    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1035    o move call to cal_readparms up to make calendar parameters/variable available
1036      to all packages
1037    
1038    checkpoint58v_post
1039    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1040      useDynP_inEos_Zc tested.
1041    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1042    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1043      and portions thereof.  See read_cs.txt for description and examples.
1044    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1045      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1046      following the great-circle arc between those 2 points.
1047    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1048      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1049    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1050     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1051     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1052     - still needs work (not working with some options ; efficiency to improve)
1053       and serious testing.
1054     - use this scheme for temperature & salinity in 2 advection test exp.:
1055       advect_xy & advect_xz, respectively.
1056    
1057    checkpoint58u_post
1058    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1059    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1060    o testreport: add option "-skipdir" to skip some test.
1061    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1062      momentum calculation.
1063    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1064    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1065      remove checkpoint.F and the_correction_step.F (no longer used);
1066      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1067    o add option (linFSConserveTr) to correct for tracer source/sink due to
1068      Linear Free surface
1069    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1070    o pkg/thsice: fix reading mnc-pickups
1071    
1072    checkpoint58t_post
1073    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1074    o pkg/mdsio:
1075     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1076       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1077       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1078     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1079     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1080       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1081     - new S/R (to replace MDSWRITEMETA), which allows to write more
1082       informations (variable names, time ...) to meta files.
1083     - modify rdmds.m to give back the meta file content.
1084    o pkg/diagnostics: change vertical interpolation to be safer, and more
1085       flexible (define p-levels to interpolate to in data.diagnostics);
1086      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1087       diagnostic pointer.
1088    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1089    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1090    o fix multi-category seaice:
1091     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1092       SEAICE_MULTICATEGORY
1093     - fix short wave heat flux
1094    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1095       and allow to use EVP solver. Change forward lab_sea: test both EVP
1096       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1097    o Initial check-in of lab_sea adjoint
1098      (very similar to natl_box_adjoint/code_seaice)
1099      * used C-grid and EVP solver
1100      * used KPP, GM/Redi
1101      * uses inAdExact=.TRUE.
1102      * gradient checks fail for both ADM and TLM
1103        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1104        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1105        issue is related to forward mismatch between g77 an ifort
1106    o pkg/seaice: overhaul of thermodynamics
1107     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1108     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1109     - move a few global fields out of SEAICE.h into seaice_growth.F and
1110       make them 2D (FICE/QNETO/ ...)
1111     - remove FO (it is the same as QNETO)
1112     - introduce a few local fields to avoid modifying external fields such
1113       as atemp, etc.
1114    
1115    checkpoint58s_post
1116    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1117      changed exf_set_gen.F so that
1118        genperiod=0 means input file is one time-constant field and
1119        genperiod=-12 means input file contains 12 monthly means
1120    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1121      this affects truncation error ; generate new output file for exp. which
1122      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1123        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1124        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1125        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1126        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1127        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1128    o start implementation of deep-atmosphere and anelastic formulation
1129    o verification: remove 2nd copy of input files and use script "prepare_run"
1130      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1131    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1132    o profiles: fix for multithreaded case
1133    
1134    o diagnostics: rename few diags:
1135      s/'PRESSURE'/'RCENTER '/g
1136      s/'TICE    '/'oceFreez'/g
1137      s/'TAUX    '/'oceTAUX '/g
1138      s/'TAUY    '/'oceTAUY '/g
1139      s/'SWFLUX  '/'oceQsw  '/g
1140      s/DIFx/DFxE/g
1141      s/DIFy/DFyE/g
1142      and add few ocean-forcing diagnostics:
1143      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1144    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1145      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1146      as actual snow thickness.  It now refers everywhere to effective snow
1147      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1148    
1149    checkpoint58r_post
1150    o modifications to pkg/seaice/growth.F, which change results of
1151      lab_sea experiment: fixes pertain to melting snow over open water, to
1152      masking EVAP under sea ice, and to using the correct AREA variable for
1153      computations of EVAP, PRECIP, HSNOW, and GHEFF
1154    o add ability to read bathy, salt, and theta using MNC (off by def)
1155    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1156      both are turned off by default and do no change any results
1157    o seaice advection with pkg/thsice: a step toward the use of non-linear
1158      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1159    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1160      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1161      in natl_box (affects results @ truncation level: update output.txt)
1162    o multi-threading and IO:
1163      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1164      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1165        (needed to work with SingleCpuIO): tested in all verif. exp.
1166    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1167      affects the results (but none of the verification test uses this scheme).
1168    o Adding some pkg/diagnostics capability to pkg/seaice
1169      (will certainly be subject to changes)
1170    o ctrl: adding new control variables:
1171      lwflux, lwdown, evap, snowprecip, apressure, runoff
1172    
1173    checkpoint58q_post
1174    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1175      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1176      high_res_cube configuration by 4% on Columbia.
1177    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1178      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1179      dynamical allocation (seems to work in multi-threaded).
1180    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1181      single CPU io) so that TAF does not have to see EESUPPORT.h
1182    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1183    
1184    checkpoint58p_post
1185    o obcs: stop if obcs is used with useCDscheme = .true.
1186    o shelfice:
1187     - fix a sign error so that no slip at shelfice interface works
1188     - remove stop for combination non-hydrostatic code and shelfice. That does
1189       not mean, that the results are correct, but at least they are numerically
1190       stable
1191    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1192    o added adjoint exch routined for all exch*3d* routines
1193      and updated flow directives
1194    
1195    checkpoint58o_post
1196    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1197      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1198    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1199      and clean-up reading/writing of pickup files.
1200    o fix local version of read/write pickup (NH part) in rotating_tank/code
1201    o simplify EXCH interface:
1202     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1203     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1204    o added the regrid package
1205    o shelfice:
1206     - add a simple boundary layer scheme to reduce noise
1207     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1208    
1209    checkpoint58n_post
1210    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1211       local variable (not in common block).
1212    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1213      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1214      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1215        to work with SingleCpuIO.
1216    o add "_d 0" to real constant of pkg/cfc subroutines ;
1217       update exp. cfc_exemple & tutorial_cfc_offline output files.
1218    o multi-threading and IO:
1219      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1220        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1221      - barrier before and after reading.
1222      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1223      - avoid using MDS_WRITELOCAL for LAND pkg output.
1224      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1225        common-block variables ; Allows multi-threading with master-thread IO.
1226    o change default MAX_NO_THREADS from 32 to 4 ;
1227      and stop cleanly when MAX_NO_THREADS is too small.
1228    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1229    
1230    checkpoint58m_post
1231    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1232       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1233    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1234       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1235       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1236    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1237        add MITgcm_tutorials (= code + all the tutorials)
1238    o ecco, option to compute cost for total ssh (mean+anom)
1239    o consistent with addition of ptracer and ssh in pkg/profiles
1240    o profiles: adding ptracer and ssh
1241    o testreport: change multi-test output-file name
1242      (from output.txt.{name} to output.{name}.txt)
1243    o profiles: now ok for mutli-tiles case
1244    o seaice: add 4 parameters for different advection schemes for area,
1245      (effective) seaice thickness, enthalphy, and snow height. Their default
1246      is the standard parameter SEAICEadvScheme
1247    o calc_gw:
1248     - add cosFacU in zonal viscous flux (harmonic.visc.).
1249     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1250       of tutorial_plume_on_slope.
1251    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1252    o calc_gw: true flux-form, account for horizontal grid spacing.
1253      update rotating_tank results, but not plume_on_slope (affected at
1254      truncation level, 11 digits).
1255    
1256    checkpoint58l_post
1257    o calc_gw:
1258     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1259     - remove side-drag for now (need to fix it); update plume_on_slope results.
1260     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1261    o commit code to make SST/SSS weights spatially variable
1262      (based on either variable in-situ or variable initial T/S weights)
1263    o pkg/ecco:
1264      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1265        now based on horizontally varying weights wthetaLev, wsaltLev
1266      * cost_averagesflags now returns year indices in addition to day, month
1267      * sflux balance is performed on annual basis
1268        (sflxumm, sfluxmm2, bal_sfluxmm)
1269      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1270        including separate counting and multipliers
1271    o pkg/rbcs
1272      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1273    
1274    checkpoint58k_post
1275    o testreport:
1276     - always build in dir. "build" (if not there, mkdir build instead of building
1277       & running in input)
1278     - run in dir run (if it exists), in build otherwise.
1279     - call prepare_run (if input/prepare_run exists)
1280     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1281    o pkg/exf modifications to interpolation and rotation routines for more
1282       reasonable treatment of North Pole singularity: for tracers North Pole
1283       value is set to northernmost zonal-mean value, for zonal velocity it is
1284       set to zero, and for meridional velocity it is set to northernmost value.
1285    o pkg/exf/exf_check_range.F
1286     - add tile index to diagnostics and move stop statement to the very
1287       end of the routine.
1288    o pkg/diagnostics: (diagnostics_main_init.F)
1289      define title of isomorphic variables according to the current config.
1290    o pkg/thsice with pkg/seaice dynamics:
1291    - fix domain of computation (interior only, required for exf) and do exchanges
1292    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1293    o towards a standard way of dealing with multi-threading in MONITOR
1294      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1295    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1296       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1297    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1298    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1299    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1300       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1301    o tracer advection:
1302     - clean-up and simplify calc_common_factors.F
1303     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1304       advection subroutine (but still not used within DST advection S/R)
1305    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1306    
1307    checkpoint58j_post
1308    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1309      from file (collects calls previously in FORWARD_STEP)
1310    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1311    o adjoint store dir. adjusted accordingly
1312    o genmake2
1313      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1314    
1315    checkpoint58i_post
1316    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1317      on wind stress (SEAICEstressFactor defaults to 1.)
1318    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1319      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1320    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1321      on CS-grid: no longer loosing mass.
1322    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1323    o pkg/ggl90: fix sloppy output and fix a bug
1324    o pkg/seaice: added SEAICEuseEVPpickup parameter
1325      - Set to false in order to start EVP solver with
1326        non-EVP pickup files when using SEAICEuseEVP
1327      - fix sign error in diffusion in seaice_calc_rhs
1328    
1329    checkpoint58h_post
1330    * Modifications for bottom topography control
1331      o replace hFacC by _hFacC at various places
1332      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1333      o add non-self-adjoint cg2d_nsa
1334      o update autodiff support routines
1335      o re-initialise hfac after ctrl_depth_ini
1336      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1337    * Adding verification for 5x5 box (4-layer) bottom topography control
1338    
1339    checkpoint58g_post
1340    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1341       used for mean seasonal cycle, mean diurnal cycle); add an example
1342       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1343    o pkg/ggl90:
1344      - add parameter (minimum surface kinetic energy)
1345      - fix bug (avoiding division by zero)
1346    o couple pkg/thsice to pkg/seaice:
1347      - modify advection in seaice to accomodate new scalar fields to be advected
1348      - only muliDimAdection scheme work with seaice/thsice
1349      - mapping of thsice-variables to seaice-variables, back and forth
1350      - does not break the verification experiments, but does not give the
1351        desired results either
1352    o pkg/seaice
1353      - make (default) second order advection a bit less confusing?
1354    
1355    checkpoint58f_post
1356    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1357      to pkg/seaice):
1358      - new routines thsice_map_exf and thsice_get_exf provide the interface
1359      - add an additional formal parameter to thsice_solve4temp
1360    o pkg/exf:
1361      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1362      - correct Stefan-Boltzmann constant
1363      - new parameter for longwave surface emittance
1364      - separate some stuff from exf_bulkformulae into new routines  
1365        exf_radiation, exf_wind
1366      - add new parameters and constants: longwave emissivity for ocean, ice
1367        and snow, evaporation parameters over ice
1368      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1369        either wind from stress or stress from wind
1370    o pkg/thSIce:
1371    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1372    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1373       and THSICE_CALC_THICKN
1374    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1375    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1376      to make debugging easier.
1377    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1378    o pkg/bulk_force:
1379      - clean-up comments and parameters ;
1380      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1381    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1382      generate new output for test-experiment: aim.5l_cs.thSI
1383    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1384      testreport accordingly
1385    
1386    checkpoint58e_post
1387    o SEAICE_CGRID adjoint done
1388    o R_STAR adjoint implemented.
1389      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1390      * need to sort out init. of h0facc, etc.
1391    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1392      to be able to use it in pure forward.
1393    
1394    checkpoint58d_post
1395    o upgrade simple test-experiment to tutorial example:
1396     step.1: duplicate the experiment and (step.2) will remove the old copy.
1397      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1398      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1399      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1400      tutorial_global_oce_biogeo    <- copy of dic_example
1401      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1402      tutorial_plume_on_slope       <- copy of plume_on_slope
1403      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1404      tutorial_global_oce_optim     <- empty for now (David ?)
1405      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1406     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1407    o correct a sign problem in cost_scat.F
1408    o obcs and ptracers: fix boundary conditions for advections schemes
1409      with larger stencil
1410    o thsice adjoint: start
1411    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1412      completeness
1413    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1414      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1415    o ptracers adjoint:
1416      * avoid extensive recomputatations
1417      * fix missing re-init. of gptr (missed by TAF)
1418    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1419      me to turn off the excessive output to STDOUT that this package produces
1420    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1421      and add those terms in Vector-Invariant formulation.
1422    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1423      if the control period (xx_hfluxperiod etc) is 0
1424    o in profiles pkg, clean routines and fix details
1425    o in ecco pkg, reading ssh data:
1426      fix problem in case the model does not start at iter0=0
1427    o fix mnc-pickup/restart for ptracers
1428    o new package prifiles:
1429      code to compute profile-based cost by Gael Forget
1430      (modifs in ecco, ctrl, autodiff)
1431    o Benign bug fix in initialization (spotted by M. Mazloff) of
1432      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1433    
1434    checkpoint58c_post
1435    o adjoint: finish NLFS adjoint and provide reference output in
1436      verification/global_ocean.90x40x15/results_ad_nlfs
1437    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1438      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1439      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1440      with SEAICE_CGRID defined.
1441    o move calendarDumps from "data" to "data.cal" and clean-up the code
1442      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1443    o add useEXF & useCAL flags (for now, set in hard-coded way)
1444    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1445      (were missing in NH mode, and wrong in quasihydrostatic mode).
1446      waiting for Chris updated version of calc_gw to add those CALLs.
1447    o fix bug in quasihydrostatic S/R ;
1448      add a test for this option: global_ocean.90x40x15.qshyd
1449    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1450      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1451    o add on/off flag useOffLine for package OFFLINE
1452    o seaice:
1453      - modify advection so that it works also on the C-grid
1454      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1455        problem in multi-tile runs with C-grid
1456      - add flags for clipping ice velocities and/or masking solver forcing
1457      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1458        C-grid solver
1459      - added a few comments to seaice_diffusion.F
1460      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1461        are now exclusive)
1462      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1463        required re-ordering the code a little:
1464       + make DAIRN global variable (defined in SEAICE)
1465       + move computation of the viscosities eta and zeta into a new separate
1466         routine (because I need to recompute them in seaice_ocean_stress.F)
1467    
1468    checkpoint58b_post
1469    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1470      update output.txt of exp. aim.5l_cs.thSI
1471    o various mnc cleanups and improvements:
1472      + shrink lookup tables by factor of ~4
1473      + better error reporting when running out of lookup space
1474      + able to handle longer path/file names (up to 500 chars)
1475    o adjoint:
1476      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1477      - TBD: "hidden" mom_vecinv recomp. in dynamics
1478    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1479     (allow to differentiate between forcing components using new integer flags:
1480      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1481     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1482    o ecco
1483      - enable trend removal from SSH anomaly obs.
1484    o adjoint
1485      - a fix for PmEpR when #undef EXACT_CONSERV
1486      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1487      - try to fix "hidden" recomp. in forward_step for NLFS
1488        (NLFS seems broken sometimes after I checked it in)
1489    o seaice:
1490     - add c-grid version of the dynamic solver:
1491       + three new routines that are the c-grid substitute lsr, dynsolver
1492         and ostres
1493       + put a few fields that were local to dynsolver into global common
1494         blocks, so that I can move the computation of stresses etc into
1495         seaice_lsr (saves coding but may break the adjoint).
1496     - replace more hardwired parameters by runtime parameters
1497     - add ice masks that mask the rhs of the implicit solvers where there
1498       is no ice (commented out in seaice_dynsolver, because i am not sure
1499       if this works properly), eventually this should replace the clipping
1500       of ice velocities in seaice_dynsolver to +/-40cm/s.
1501    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1502      include it only where its needed
1503    o move balancing of fluxes before the call of external_forcing_surf
1504    o seaice:
1505      - correct units of turning angles (now they are really in degrees)
1506      - move computation of GWATX/Y out of main routine into dynsolver
1507      - initialize GWATX/Y in seaice_init
1508    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1509      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1510    o seaice: add runtime flags for turning angles (default to zero)
1511    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1512      and trend from exf forcing and ctrl control adjustments
1513    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1514      (since checkpoint57x_post)
1515    o change the default rotation period to 86164.s = the Earth rotation
1516    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1517      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1518    o seaice advection: add code for choosing between the default (2nd order
1519      central differences) and multiDim advection schemes provided by
1520      pkg/generic_advdiff
1521    o seaice:
1522      - removed all references to SEAICE_GRID.h fields from
1523        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1524        (cubed-sphere configuration will change a little)
1525      - grid computations in seaice_init are obsolete now.
1526      - cleaned up code a little so that is easier to read (hopefully).
1527      - added new (better?) discretizations of default advection and diffusion
1528        (turn on with SEAICEuseFluxForm)
1529      - replace 1 in 3d global fields by kSurface in growth.F
1530      
1531    checkpoint58a_post
1532    o seaice:
1533      - bug fix in advect.F
1534    o shelfice:
1535      - separate shelfice load anomaly from pload (breaks with time
1536        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1537        Its default is 0., but it may be computed more cleverly from (unknown)
1538        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1539        done offline. A good approximation of the pressure load anomaly is
1540        necessary to avoid large initial adjustment processes underneath
1541        deep-reaching shelfice.
1542      - small fix in ISOMIP shelfice_thermodynamics
1543      - add more sophisticated thermodynamics of Hellmer (1989), this is
1544        now the default
1545      - give a few constants more intuitive names
1546    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1547      if bulk formulae are used in long integration (especially EmPmR). Turn
1548      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1549      if balancePrintMean, the imbalance that is substracted is printed to
1550      STDOUT.
1551    o fix bug (typo) in obcs_apply_eta.F
1552    o add a new package shelfice which enables us to model the circulation
1553      underneath shelf-ice with draughts of hundreds of meters.
1554     - works
1555     - to do: + include improved thermodynamics
1556              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1557                instead of new field kTopC
1558              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1559                instead of new field R_shelfIce and new code in ini_depth.F
1560                and ini_mask_etc.F?
1561              + adjust vertical mixing schemes?
1562    o seaice pkg:
1563     - add a cpp-flag to include a simple formula for a salinity dependent
1564       freezing point of sea water at the surface
1565     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1566       meridional stresses are now different (and hopefully correct)
1567    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1568       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1569       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1570    o pkg/diagnostics: add options and parameters for regional-statistics
1571       diagnostics ; define regions by reading a region-mask from a file
1572       (might add other options later)
1573    o pkg/bulk_force:
1574     - add option and parameters to use AIM surface-flux formulae.
1575     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1576       others forcing fields (defined in PARM05, parameter file "data") are loaded
1577       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1578     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1579     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1580     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1581       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1582     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1583    
1584    checkpoint58
1585    o add "--embed-source" option to genmake2 which, when the supporting
1586      tools can be compiled (as determined by genmake2) will turn on the
1587      embed_files package which then embeds the entire MITgcm source code
1588      (*.[fFhc] + Makefile) used for the build within the executable
1589      - requested by CNH but off by default
1590      - adds a paltry <9MB to the mitgcmuv executable in most cases
1591      - only writes the output when useEMBEDSRC in eedata is true
1592    o clean up 3-dim. relaxation codes:
1593      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1594      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1595      * Thanks to Tom Haine for testing!
1596    
1597    checkpoint57z_post
1598    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1599      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1600    o fix the pickup behavior for obcs in combination with ptracers
1601    o fix a bug in ptracers_external_fields_load
1602    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1603      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1604    o transfered surface NH pressure to eta field (if exactConserv).
1605    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1606         and update lab_sea output.txt file.
1607    o completing 3-dim. relaxation code: additional term
1608         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1609      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1610      * At compile time, in "EXF_OPTIONS.h" set
1611          #define  ALLOW_CLIMTEMP_RELAXATION
1612          #define  ALLOW_CLIMSALT_RELAXATION
1613      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1614          tauThetaClimRelax3Dim = 15552000.0,
1615          tauSaltClimRelax3Dim  = 15552000.0,
1616      * 3 cases:
1617          1) Use a constant-in-time 3-dim. field
1618          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1619          3) Real-time relax. to time-evolving prescribed field
1620    o Adding Laplacian-type smoothness constraint on
1621      initial and boundary (forcing) controls (ic, bc)
1622      * enable at compile-time via
1623        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1624      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1625      * Absolute scale somewhat unclear so far
1626      * no area weighting was included since no other cost term does so far
1627    
1628    checkpoint57y_post
1629    First step for a NLFS adjoint
1630    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1631    o new init. routines for calc_r_star, calc_surf_dr
1632    o still need to deal with ini_masks_etc
1633    o testreport seemed happy
1634    checkpoint57y_pre
1635    
1636    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1637    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1638    o add new offset feature to offline pkg (plus minor cleanup)
1639    o cfc fixes for final year of integration
1640    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1641      be in GCHEM_OPTIONS).
1642    
1643    checkpoint57x_post
1644    o fix testreport Pb in multiple test experiment.
1645    o cleanup our namelist syntax in verification:
1646      - make it more F95 standards compliant (some work still needed)
1647      - allows the vast majority of our tests to work with gfortran
1648    o Non-Hydrostatic:
1649     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1650     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1651    o Allow to apply AB on T,S rather than on AB(gT,gS):
1652     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1653     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1654       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1655     - need a "clever" read_pickup to restart from the other AB formulation
1656    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1657    o remove some unused variables (reduces number of compiler warnings)
1658    o adjoint
1659      * Disable useVariableViscosity for adjoint for time being
1660        (there are a number of extensive recomputations)
1661      * Initialize certain variables needed for adjoint
1662    
1663    checkpoint57w_post
1664    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1665                 fix the singleCpuIO RS version of MDSWRITEFIELD
1666       and add a WARNING if using globalFiles=T with multi-processors.
1667    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1668      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1669    o tracer advection scheme:
1670      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1671       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1672       was not very convenient).
1673      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1674       (further tests needed for the implicit DST & Flux-Limiter schemes).
1675    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1676      and sRef for convenience, handy, when you want to initialize
1677      ptracers in a large domain with a constant non-zero value. Also,
1678      untangle ptracers_init.F a little.
1679    
1680    checkpoint57v_post
1681    o change dome exp. to use variable viscosity in side-drag terms.
1682    o remove all the files from the cfc_offline test since they are now
1683      incorporated into tutorial_cfc_offline which has been producing
1684      identical results for a few days of testing
1685    o add new parameter: sideDragFactor to enable half-slip-side BC
1686      and change side-drag S/R to use viscosity from mom_calc_visc
1687      (can switch back by setting sideDragFactor=0.); affects results at
1688      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1689       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1690    o vorticity & strain are now computed without masking, to account for
1691      no-slip-side BC in variable viscosity calculation ; mask is applied
1692      anyway later on, before computing advection/coriolis terms.
1693    o modify exp4 to test new obcs support for reading from external files
1694      and for passive tracers
1695    o fix behavior of ptracers_monitor when monitor output is written to a
1696      netcdf-file; still not independent of monitor.F (writes in the same
1697      file).
1698    o change default value of tRef (put a uniform, meaningful value for ocean
1699      & atmos) and initialize sRef (was missing, as Martin mentioned).
1700    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1701      to be proportional to enstrophy dissipation length.  Thus,
1702       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1703      This is now consistent with Smagorinsky and with the manual.
1704    
1705    checkpoint57u_post
1706    o OBCS and PTRACERS: add open boundary support for passive tracers
1707      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1708        OB-values from file; this is not different from the way theta and salinity
1709        are treated
1710      - however, Orlanski-radiation conditions are not supported, and the model
1711        will stop if you use pTracers and Orlanski at the same time.
1712      - beefed up the rountine obcs_external_fields_load: now only those open
1713        boundary values are overwritten with values from files for which there
1714        are really files, otherwise the OB-fields remain untouched. This makes
1715        it possible to use different OBs at different ends of the domain (as
1716        with EXF)
1717    o reduce number of exch calls in shap_filt (s2).
1718    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1719      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1720    
1721    checkpoint57t_post
1722    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1723    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1724      same truncation, independent of the face number: affects affects several
1725      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1726    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1727      note that biharmonic viscosity + no-slip was not tested in any experiment.
1728    o fix bug in non-linear free-surf side-drag ; generate new output for
1729      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1730    o make mnc honor the writeBinaryPrec flag for most kinds of output
1731    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1732    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1733      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1734    o add brackets in multi-terms sum to get same truncation, independent of
1735      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1736      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1737    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1738      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1739      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1740      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1741      Suggested values of viscosity parameters found in mom_calc_visc.
1742      Many new viscosity diagnostics available.
1743    
1744    checkpoint57s_post
1745    o Add clearing-house for viscosity calculations, mom_calc_visc and
1746      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1747      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1748      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1749      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1750      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1751      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1752      ViscAhStrain and viscAhTension are now retired.
1753    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1754    o In response to JMC's bug report, genmake2 now ignores any soft-links
1755      that it finds in the *current* directory when searching for files.
1756      Soft-links found in any other source directories will still work as
1757      they did before.
1758    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1759      a C routine to unlimit the stack size
1760    o mnc-ify pkg/aim snapshot vars
1761    o mnc-ify pkg/land as requested by Daniel
1762    o various changes to mnc including:
1763      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1764      - output can now be grouped so that all files within a group
1765          change the ITER portion of their names in lock-step together
1766      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1767          and works with both EXCH1 and EXCH2 (but needs more testing)
1768      - writing works for all verification test cases w/ g77 on Linux
1769    
1770    checkpoint57r_post
1771    o make MNC variable initialization happen earlier
1772    o add diagnostics for (almost) each term of the momentum Eq.
1773    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1774    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1775    o remove MINIMAL_TAVE_OUTPUT option ;
1776      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1777    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1778      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1779    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1780    o add time-dependent SST, SSS control
1781    o cost terms in ecco/ modularized (new cost_generic.F)
1782    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1783    o new infrastructure for seaice model vs. obs misfits in seaice/
1784      * driver from the_main_loop.F is seaice_cost_driver.F
1785      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1786      * gradient check in Exp. 6a of natl_box_adjoint/
1787    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1788      (see README file)
1789    
1790    checkpoint57q_post
1791    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1792    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1793      - bug was reported by Jean-Michel and Ian Fenty
1794    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1795      update exp. cpl_aim+ocn output.
1796    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1797      Needed for high-res. runs with large global files
1798      to be able to limit tapelev size
1799    o Changed some tests for adjoint:
1800      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1801      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1802      * global_ocean.90x40x15/ back to default 3-level checkpointing
1803    o Modifications to enable scripted COMMON to MODULE conversion
1804      * verification/OpenAD/code/ has necessary scripts and description;
1805      * converts, compiles and runs successfully;
1806    
1807    checkpoint57p_post
1808    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1809    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1810      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1811    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1812    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1813      (was already the case for dissipation with mom_vecinv,
1814       and also the case for grad.PhiHyd when staggered-timeStep)
1815      This will allow to put dissipation out-off the AB time-stepping.
1816     Unfortunately, affects truncation error. Update output of exp. that "fails"
1817      (cg2d matching number) and leave the others for later: front_relax(10),
1818      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1819      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1820    
1821    checkpoint57o_post
1822    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1823      (2) its ready to be documented during the 20050801 DocFest
1824    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1825      for ideal_2D_oce and lab_sea on linux_ia32_g77
1826    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1827      in global1x1_tot/code_seaice_adj to access indices 32, 33
1828      (worth another tag)
1829    
1830    checkpoint57n_post
1831    o adding precip control xx_precip 32
1832    o adding swflux control xx_swflux 33
1833    o Replacing 10 forcing penalty cost routines by 1 generic.
1834    o Implementing partitioning in time-mean and variable adjustment
1835      for atmos. state.
1836    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1837    o in natl_box_adjoint:
1838      * updated exp 1 to 10
1839        (but does not have time-mean vs. variable split results yet)
1840    o updated global1x1/*_seaice_adj/
1841      to incorporate latest changes
1842    o enable useSingleCpuIO for mdsio vector routines
1843      (applies in particular to tapelev I/O)
1844    o removed inefficient K-loop in all active_file*control*.F
1845    
1846    checkpoint57m_post
1847    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1848      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1849    o pkg/exch2: filling of face-corner halo regions is optional
1850      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1851    
1852    checkpoint57l_post
1853     tag before updating tutorials (pre-release-2)
1854    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1855       for output and interpolation of input fields onto model grid)
1856    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1857       Affects results of exp. rotating_tank ; update output.txt.
1858    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1859          and taking the square quantity and/or using a fraction-weight field.
1860    o fix aim_diagnostics_init.F mate numbers.
1861    o add mnc output capability to diagnostics/diagstat and update
1862      our cvsignore files for the ACSII output generated
1863    
1864    checkpoint57k_post
1865    o lab_sea now uses diagnostics package and provides a suite of
1866      new EXF diagnostics output.
1867    
1868    checkpoint57j_post
1869    o exf
1870      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1871        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1872        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1873      * extended diagnostics output
1874        - now includes all EXF variables
1875        - hs, hl moved to common block
1876        - separate S/R for diagnostics, called after ctrl vector is added
1877        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1878        - EXFqnet contains true Qnet (i.e. includes qsw)
1879      * updated verif. lab_sea, global_with_exf
1880      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1881        to ensure that diagnostics sees a true EXFqnet
1882    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1883    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1884      several times with different frequencies.
1885    o mnc-ify the thsice package as requested by Daniel Enderton
1886      - the monitor--MNC output needs work
1887      - many attributes need to be added (most are currently blank)
1888    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1889      - many attributes need to be added (most are currently blank)
1890    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1891    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1892    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1893      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1894         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1895    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1896     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1897    
1898    checkpoint57i_post
1899    o Diagnostics package was changed: diagnostic allocation is now deactivated
1900      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1901    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1902      add 1rst Order upwind vertical Shear.
1903    o add a quick fix for A/B checkpointing in OFFLINE mode
1904    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1905      end-run around the C/Fortran linking horror in eesup/src/timers.F
1906    o added pkg/runclock: allows user to terminate run based on wall clock
1907    o added non-hydrostatic scaling parameter: nh_am2
1908    o pkg/my82: futile attempt to make results compiler-independent by adding
1909      some "_d 0", etc. no effect.
1910    o for mnc output, fill the 'T' coordinate var with myTime and create a
1911      separate 'iter' variable for iteration count
1912    o pkg/diagnostics:
1913      add new capability: output of Global/Regional & per-level statistics ;
1914      tested against monitor output (including land & thSIce) on various exp.
1915    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1916    
1917    checkpoint57h_done
1918      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1919      data.diagnostics, data.gchem, data.ptracers) is done.
1920    
1921    o pkg/diagnostics: prepare for Global/Regional statistics.
1922      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1923    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1924      and rename it: DIFFERENT_MULTIPLE
1925    
1926    checkpoint57h_post
1927    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1928    o pkg/diagnostics: change output frequency, now in seconds (instead
1929      of Nb of iterations). This requires to change data.diagnostics.
1930    checkpoint57h_pre
1931    
1932    o in mnc, let the user create the output dir if both mnc_outdir_date
1933      and mnc_outdir_num are false
1934    o add fflags() to pkg/diagnostics which allows one to specify, on a
1935      per-file basis, the file precision [default behavior is unchanged]
1936    o added diagnostics to pkg/kpp, including computation of mixed layer
1937      depth based on a temperature/density criterion
1938    o updated verification/natl_box to test the new pkg/kpp diagnostics
1939    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1940    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1941    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1942      not mnc -- this mistake was found by JMC and is now corrected
1943    
1944    checkpoint57g_post
1945    o add Adams-Bashforth 3rd Order time stepping:
1946      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1947      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1948    checkpoint57g_pre
1949    
1950    o make lambda[Theta,Salt]ClimRelax spatially varying
1951      (default remains spatially uniform constant based on tau)
1952    o added new control variables
1953      * init. uVel, vVel, etanN
1954      * lambda[Theta,Salt]ClimRelax
1955    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1956      (suggested by G. Forget)
1957    
1958    checkpoint57f_post
1959    o add parameter "baseTime" = model base time = time at iteration zero
1960      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1961      account for baseTime shift
1962    o move Coriolis arrays from PARAMS.h to GRID.h
1963    checkpoint57f_pre
1964    
1965    o mnc-ifying the seaice package
1966    o introduced an alternative length scale calculation for use in the limiting
1967      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1968    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1969    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1970      as well as grad(vort3).  Made it compatible with both approximate form
1971      for the cubed sphere and full form of these gradients.  Added flag
1972      useFullLeith to select between approximate and full form.  
1973    o add "d0" in getcon.F to reduce differences between compilers/platforms
1974      update output.txt of exp. fizhi-gridalt-hs
1975    o change port_rand funtion to allow to set the seed.
1976    o fix obscure MNC bug involving conversion between reals and integers
1977      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1978        new version is now more standards-compliant
1979    o adjoint-related modifications
1980      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1981      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1982      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1983    
1984    checkpoint57e_post
1985    o Adding eddy stress controls a la Ferreira et al.
1986    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1987    
1988    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1989      update output.txt of exp. fizhi-gridalt-hs
1990    o add more "Z" dimensions and associated coordinate vars to MNC
1991    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1992    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1993      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1994      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1995      months and years.  Requires pkg/cal.
1996    o diagnostics: add pickup functionality
1997      - off by default for backwards compatibility
1998      - current version only uses MDSIO -- MNC will be added
1999    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2000    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2001    
2002    checkpoint57d_post
2003    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2004    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2005      output from the diagnostics package
2006    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2007    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2008      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2009    o add coordinate variables to the MNC output from the diagnostics package
2010    o change MNC-flags default value: true when useMNC=TRUE
2011    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2012      the ability (off by default) to read the grid information using MNC
2013    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2014    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2015    o do snap-shot diagnostics at the middle of the time-interval (instead of
2016      at the end).
2017    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2018      new test for AIM with thSIce + slab-ocean
2019    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2020    o move state variable diagnostics to the beginning of the time step ;
2021      (note: still needs some work specially for snap-shot diagnostics)
2022      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2023    
2024    checkpoint57c_post
2025    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2026    o generate new output.txt files on faulks with g77 & the new -ieee option
2027    checkpoint57c_pre
2028    
2029    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2030      update output.txt of exp. global_ocean.90x40x15
2031    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2032      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2033    o add saltFlux(+File) forcing capability with periodicExternalForcing
2034    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2035    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2036    o improvements for the MNC output from DIAGNOSTICS:
2037      - correct handling of the unlimitied dimension
2038      - all dims now have associated coordinate variables
2039      - variables located at U, V, and Corner ("Z") points are now written
2040        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2041        *all* data points are output
2042    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2043    o added pkg/seaice/seaice_monitor.F
2044    o mdsio_readfield.F can now read files visible only to master MPI process.
2045    o pkg/seaice: some test code for ice-modified ocean stress
2046    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2047      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2048      spurious negative numbers for precipitation and humidity.  Will cause
2049      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2050    o pkg/ctrl/
2051      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2052        May be enabled via doPackDiag
2053      *  introduce z-scaling of
2054         + gradient (doZscalePack) and
2055         + control (doZscaleUnpack)
2056    o pkg/mdsio/
2057      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2058      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2059    
2060    checkpoint57b_post
2061    o simplify options in diagnostics_fill arguments (remove weird combinations)
2062    o fix MNC coordinate variables so that they now contain per-face index
2063      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2064      general, EXCH2 grids are only aligned to a "local" coordinate system
2065    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2066    o Implement instantaneous output within pkg diagnostics:
2067      setting a negative frequency in data.diagnostics produces
2068     "snap-shot" output (as opposed to time-average if freq > 0)
2069    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2070      NOTE: change ptracer diagnostics name: use 2 characters to work with
2071            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2072    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2073      becomes the coordinate variable for the 'T' dimension
2074    o add CF-style coordinate variables to MNC
2075      - just a first cut:  numbers are meaningless on the cubesphere and
2076        missing along the T axis but otherwise it works!
2077    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2078    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2079    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2080      this is based directly on what the model compute, so that the content of
2081      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2082    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2083    o clean up build options files for SunOS, in particular
2084      - remove -traditional from xmakedepend
2085      - change -xarch=v9 to -xarch=native for f77
2086      - restore use of make (not gmake)
2087      - add CC=gcc if using g77
2088    o changes per discussion of AM, JMC, & EH3 today:
2089      - move redundant "grid" variables out of "state" -- in preparation of
2090        creating proper CF-style coordinate variables and in recognition
2091        that any/all grid variables can be easily copied (eg. w/NCO) from
2092        the grid files into any of the other NetCDF files
2093      - *always* output grid variables with MDSIO (this will eventually be
2094        changed)
2095      - output MNC grid file if useMNC is true
2096    o every instance of _END_MASTER() has been found and replaced with
2097      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2098      preprocessors
2099    o re-arrange diagnostics pkg initialisation:
2100     - allow each package to extend the available diagnostics list
2101     - add some checking and fix small problems (multi-threaded, ...)
2102     - new S/R diagnostics_fill (replace fill_diagnostics):
2103       look through the short list of active diag. (instead of the long list)
2104       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2105    
2106    checkpoint57a_post
2107    o this set of changes restores TAMC compatibility
2108      tested for global_ocean.90x40x15 adjoint on trough
2109      (what a pain)
2110    
2111    checkpoint57a_pre
2112    o some modifs in tools/build_options for sunos
2113    o call ctrl_pack for ctrl at end for optimcycle=0
2114    
2115    checkpoint57
2116    o add horizontal bi-harmonic viscosity for vertical velocity
2117      - new parameter viscA4W (defaults to viscA4)
2118      - affects only non-hydrostatic code
2119      - to be done: no-slip lateral boundary conditions
2120    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2121    o implement Implicit Vertical advection for pTracers
2122    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2123      (implemented also for implicit vertical diffusion & advection)
2124    o OBCS: extend application of tracer open boundary conditions
2125      to a strip beyond the boundary of width Olx/Oly
2126    o add call monitor to TAF set of required calls (flow directives)
2127      and include in natl_box_adjoint
2128    o untangle a few ifdefs related to cost, ctrl, autodiff
2129      untangel a few ALLOW_ECCO_OPTIMIZATION
2130    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2131      (theta2, salt2 in ecco_cost_weights)
2132    
2133    checkpoint56c_post
2134    o OBCS as control variables
2135      - update ctrl_ad_diff.list, obcs_ad_diff.list
2136      - remove balance of obcs controls from default
2137      - fix index bug nobcs in ctrl_init
2138      - fix dummy fields filen in ctrl_pack
2139      - add dummy weights for obcs
2140    o lsopt: comment out fort.94 output
2141    o optim:
2142      - remove unnecessary header files
2143      - adjusted namelists
2144      - add xerbla.F to Makefile
2145    o exf:
2146      - multiple modifications of exf_check_range
2147      - unit change in exf_init_runoff from [m/year] to [m/s]
2148    o mdsio:
2149      - i/o-vector change debugLevel from debLevA to debLevB
2150    
2151    checkpoint56b_post
2152    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2153      is called from DO_THE_MODEL_IO
2154      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2155      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2156      - clean up PTRACERS_WRITE_TIMEAVE a little
2157    o add another verification experiment that tests both the cfc-pkg and
2158      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2159      reactive tendencies treated inline with regular timestepping
2160    o testreport previously did a lousy job of comparing small numbers, so
2161      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2162      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2163      testreport.
2164    o ptracers_monitor: bug fix for MPI
2165    
2166    checkpoint56a_post
2167    o GCHEM: finish reorganizating the package
2168      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2169        (introduces another 3D-array for each passive tracer, but only if
2170        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2171        gchemTendency is not needed because the timestep is done separately)
2172      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2173      - GCHEM is now---more or less cleanly---separate from PTRACERS
2174      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2175        so clear to me how that should be done in a general way.
2176    o CFC: improve formatting of output in CFC_ATMOS
2177    o PTRACERS:
2178      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2179        that ALL experiments with ptracers enable can be checked. This makes
2180        GCHEM_MONITOR obsolete.
2181      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2182        monitorFreq
2183      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2184    o add PTRACERS (PTR0[1-5]) to testreport output
2185    o exf_check_range:
2186      * default changed to .TRUE.
2187      * will check values for niter0 if debLevA, every timestep if debLevB
2188      * STOP in exf_check_range if 'out of range'
2189      * range chosen generous to allow for potential extema
2190      TBD: a version with stricter range
2191           permitted range would be runtime parameters
2192  o GMredi:  o GMredi:
2193    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2194    - 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 2197  o GCHEM:
2197    - 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
2198      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2199    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2200      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2201        this flag is now only visible within GCHEM-pkg routines.
2202      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2203        be replaced by a 3D array that is computed before thermodynamics; for
2204        this, the tracer ID iTracer had to be included into the parameter list
2205        of ptracers_forcing
2206      - set up forward_step to call gchem_forcing, that will replace
2207        gchem_forcing_int in ptracers_forcing
2208      - cleaning up
2209  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
2210    
2211  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2424  o add two new packages
2424    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2425    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2426      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2427      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2428  o add offline package  o add offline package
2429  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2430    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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