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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1079 by mlosch, Wed Mar 18 14:04:14 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      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
21        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
22      - seaice_growth: replace computation of UG by a simple copy from wspeed
23    
24    checkpoint61k
25    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
26      seaice_lsr: fixed a few metric terms,
27                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
28                  add more debugging diagnostics
29      seaice_evp: removed superfluous many metric terms of FV discretization
30                  of stress divergence
31                  affects lab_sea, lab_sea.hb87
32      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
33                  of stress divergence for non-evp solver
34                  (this part is not tested anywhere)
35      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
36                  they were effectively only half slip
37                  affects lab_sea.hb87
38      updated all relevant verification experiments
39    
40    checkpoint61j
41    o pkg/seaice: turn a few hard wired parameters into run time parameters
42    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
43      time in seconds as promised by the usints in seaice_monitor and exf_monitor
44    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
45      that are not cubed-sphere grids
46    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
47    o pkg/ctrl:
48      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
49    o non-hydrostatic (calc_gw.F):
50      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
51      update output of exp. global_ocean.cs32x15.viscA4
52    o remove backward compatibility for thetaMin,phiMin
53      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
54    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
55      interpolated wind field not only for curvilineargrid=.true., but also
56      for a rotated grid (rotateGrid=.true.)
57    o pkg/exf: add capability to bypass interpolation for runoff
58      by setting yet another CPP-flag
59    o eesupp/src, B-grid exchange:
60      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
61    o autodiff
62      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
63      allows to switch to single-prec common blocks;
64      corresponding switch occurs in tamc.h, integer isbyte
65      TAF store directivs "byte" and "kind" seem equivalent;
66      Most tamc.h have been updated correspondingly.
67    
68    checkpoint61i
69    o autodiff:
70      fix autodiff_sore/_restore indices for obcs
71      (spotted by I. Hoteit, M. Mazloff)
72    o pkg/autodiff, pkg/ctrl:
73      Add flag to reduce all tapelev I/O to single-prec.
74      In data.ctrl set
75        doSinglePrecTapelev = .TRUE.
76    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
77      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
78    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
79      real fresh water flux (not yet)
80    o pkg/mdsio & rw:
81     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
82     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
83    o pkg/flt:
84     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
85       init_fixed & ini_varia.
86     - clean-up & simplify linear interpolation S/R:
87       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
88     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
89     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
90     - add vert. coordinate & horiz. indices to output files.
91     - change vertical position in initial condition, from index to depth [m].
92     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
93       (easier to get to a curvilinear grid) ; delX,delY no longer used.
94    o pkg/ggl90: a few modifications:
95     - fix bottom boundary condition, and interpolation of KappaE
96       near top and bottom
97     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
98     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
99     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
100    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
101      (maintain temporary backward compatibility, until next checkpoint)
102    
103    checkpoint61h
104    o pkg/diagnostics with "periodic averaging diagnostics":
105      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
106    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
107    o pkg/obcs: fix loop ranges for balancing code
108    o pkg/flt:
109     - improve criteria for finding which tile owns a float.
110     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
111    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
112      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
113      with ocean biogeo)
114    o pkg/flt:
115     - do some cleaning and fix the restart ;
116     - add output.txt in flt_example/results to get this pkg tested.
117    o genmake2: add an EXTENDED_SRC option and flag.
118       for now, cannot be turned on on command line (only through genmake_local)
119    o pkg/mdsio: read/write vector:
120     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
121     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
122       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
123     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
124      (drop to 4 digits matching for grad). But this test does not look very
125      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
126    
127    checkpoint61g
128    o pkg/flt:
129      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
130       + make OPTIONS file more standard.
131      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
132      - fix _BYTESWAPIO CPP-Flag
133      - standard reading of file-parameter "data.flt"
134      - fix argument list of S/R FLT_RESTART
135      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
136    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
137    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
138      a still unfixed compiler/optimization bug
139    
140    checkpoint61f
141    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
142      update results of global_ocean.cs32x15.icedyn test.
143    o move getcon.F from model/src to pkg/fizhi.
144    o pkg/exf: add parameter for extrapolation of temp up to the surface
145       and option to prevent negative evap (in bulk_largeyeager04 only).
146    o Prather Advection scheme: fix tracer conservation for divergent flow
147      (e.g., when using NonLin Free-Surface).
148    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
149    o gmredi (Visbeck-variable-K):
150     - add more parameters to Visbeck-variable-K.
151     - use a 5 points average for dSigmaR in Visbeck-K calculation
152       (more "homogenous": same stencil and same weights as in dSigmaH)
153     - update output of ideal_2D_oce experiment.
154    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
155      (#undef REAL4_IS_SLOW)
156     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
157       coordinate variable
158     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
159       (surface forcing fields), removes some of the functionality
160     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
161     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
162       probably not all: copy _RS surface flux fields to RL field before
163       calling DIAGNOSTICS_FILL
164     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
165       real*4 (CALL EXCH_*_RS) versions.
166     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
167       (generate new output).
168    
169    checkpoint61e
170    o gmredi (Visbeck-variable-K):
171      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
172      - change computation of Visbeck-K where Slope > Smax :        
173        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
174        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
175    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
176      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
177    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
178    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
179      does not become too large (to avoid precision problems in implicit-diffusion
180      solver); update ideal_2D_oce output.
181    o pkg ggl90:
182      - in ggl90_cal.F: compute only one set of visc/diff, used to
183        step forward TKE/T/S/momentum
184      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
185        have Prandlt =1)
186    o gmredi (fm07):
187      - add lower limit on Transition layer thickness + lower limit on 1/lambda
188      - allow to set few more params from data.gmredi
189    o pkg ggl90:
190          - add missing sqrt(2) factor in computation of mixing length
191            scale in ggl90_calc.F
192            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
193    
194    checkpoint61d
195    o adjoint modifs
196      - adapt to new field rhoInSitu
197      - allow to revert from StoreDynVars2D, StoreDynVars3D
198        to individual fields
199        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
200    o store 3-D (in-situ) density in commom block (DYNVARS.h)
201     - save 1 rho computation.
202     - no longer modify T & S inland when using down_slope pkg.
203    o gad_som : allow to switch to SOM advection for T & S without corresponding
204      pickup files (using new S/R: MDS_CHECK4FILE).
205    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
206      (for useSingleCpuIO to work in multi-threaded)
207    o pkg/shelfice:
208     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
209       with SHELFICEtopoFile in data.shelfice
210     - move code for reading ice shelf topography and modifying hFacC into separate
211       subroutines of the shelfice package
212     - separate initialisation of "fixed" and "variable" variables
213     - kTopC is not (yet) replaced by kSurfC, although this is possible
214    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
215    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
216      and rename:
217      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
218      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
219    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
220    
221    checkpoint61c
222    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
223      to add mass source/sink of fluid in the interior (3-D generalisation
224      of oceanic real-fresh water flux).
225    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
226    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
227    o new pkg: down_slope
228      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
229      - presently, modify T & S inland (dwnslp_calc_rho.F).
230        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
231      - implementation for ocean in P-coords not tested.
232      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
233    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
234      (to facilitate conversion of oceanic pkg to p-coordinate).
235    o change FIND_RHO to FIND_RHO_2D :
236      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
237    o new pkg: cheapaml
238    
239    checkpoint61b
240    o exch2:
241      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
242      - no longer depend on the order sequence (N,S,E,W).
243      - 3rd exchange no longer needed (tested with 24 tiles).
244      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
245      - exch_UV_A-grid readily available (but not yet tested).
246      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
247      (both are no longer needed) in exch_uv: no effect in forward run; but
248       get truncation error differences with adjoint exch.
249    o exch2:
250     - change index-bounds storage (moved from target to local tile,
251       more intuitive this way) ; rename/remove some variables.
252     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
253    
254    checkpoint61a
255    o exch2/matlab-topology-generator:
256      fix bug in index bounds for N-S internal exchange (hard to tell if this
257      had any effect on the solution).
258    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
259      is exceeded
260    o testreport: modify syntax of awk, so that it works also with
261      awk, and not only with nawk and gawk
262    
263    checkpoint61
264    o autodiff
265      Change default for TAF usage by removing argument '-nonew_arg'
266      This changes TAF subroutine argument list (ordering of active var.)
267      Omission of this flag leads to incompatibility w.r.t. TAMC
268      To restore TAMC-compatibility, need following modifs:
269      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
270      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
271      Tested TAF version is 1.9.22
272      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
273    
274    checkpoint60
275    --->>> This is the last checkpoint for which generating the adjoint
276    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
277    --->>> by default.
278    --->>> Future checkpoints will ommit this flag by default.
279    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
280    o pkg/grdchk: Add gradient check to etan0 perturbations.
281    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
282    o pkg/autodiff: more flexibility in zeroadj.
283      model/src: modifying do_oceanic_phys.F accordingly.
284    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
285    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
286      special setup of gmredi for which the adjoint is stable
287      enough for parameter optimization.
288    o bridging the gap between eddy stress and GM.
289      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
290          along with a change in CPP option (now ALLOW_EDDYPSI).
291      -> when using GM w/ GM_AdvForm:
292          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
293          is applied either in the tracer Eq. or in momentum Eq.
294          depending on data.gmredi (intro. GM_InMomAsStress).
295      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
296      The key modifications are in model/src/taueddy_external_forcing.F
297      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
298    
299    checkpoint59r
300    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
301      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
302      fix option to read coriolis(@ cell-corner) from files with CS-grid.
303    o pkg/mnc: add some attributes to standard 1D-coordinate variables
304    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
305      mass points, when using mnc for output
306      - add runtime parameter (missing_value, missing_value_int) to override
307        default (which is the value of getcon('UNDEF'))
308    o pkg/mnc: prepare mnc for the actual use of missing values with the
309      diagnostics package: small fix in mnc_cw_readwrite.template and more
310      initialisation of never used fields
311      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
312      versions
313    o pkg/thsice/thsice_ini_vars.F added default initial values so that
314      thermodynamics sea ice solver does not blow up when some initial fields
315      are missing.
316    o move from external_forcing_surf.F to ini_forcing.F
317      the p-coord. hack consisting in using pLoad to set phi0surf ;
318      update output of tutorial_global_oce_in_p (affected @ truncation level).
319    o Freshen up a bit hs94.1x64x5, notably:
320      remove rotationPeriod and tRef=5*0. (adjoint only), and add
321      exactConserv=.TRUE.
322    o pkg/generic_advdiff:
323      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
324      applies to files where Temperature & Salinity 2nd Order moments are used.
325    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
326      this uses a dynamically allocated internal state data structure
327      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
328      and requires a fortran 90 compiler
329    
330    checkpoint59q
331    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
332       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
333    o Refresh tutorial_global_oce_biogeo, notably:
334      - change bathymetry (put back seamounts in ACC, use hFacs)
335      - change EOS (POLY3 --> JMD95Z)
336      - use Bryan-Lewis vertical diffusivity
337      - use multidimensional advection
338      - remove old virtual virtual in dic pkg, now done through ptracer pkg
339      - change a couple of parameters in dic pkg
340    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
341    o pkg/obcs: change default to OBCSfixTopo = .true.,
342      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
343      - replace "debugMode" with "debugLevel .GE. debLevB"
344    o implementation of TAF directives for gchem,cfc,dic
345    o remove "exp5" (replaced by tutorial_deep_convection).
346    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
347      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
348      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
349      --> changes results in exp4, seaice_obcs
350    o tutorial_deep_convection :
351      update the set-up and increase resolution and domain size ; start
352      from pseudo initial conditions = output at t=120mn in order to see
353      something happening when running testreport.
354    o pkg/seaice: add os7mp as an advection scheme
355                  add check for advection schemes
356                  add a flag for restoring T and S underneath sea ice
357    o pkg/my82: add netcdf-support and diagnostics
358    o thsice pkg:
359      - Now hsMax limits snow height by turning it into ice following
360        flooding scheme (and now conserving energy)
361      - Slight rewriting of the formula in thsice_calc_thick.F
362      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
363      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
364    
365    checkpoint59p
366    o gchem / dic / cfc :
367      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
368      - add new parameter files: "data.dic" & "data.cfc" ;
369      - various re-arrangement in initialisation & header file ;
370      - fix tutorial_global_oce_biogeo for multi-threaded test.
371    o pkg/dic: test for "pickup_dic" file when restarting ;
372      if no pickup-file, can restart with a re-initialised pH (same as it did
373      before) providing pickupStrictlyMatch is set to False.
374    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
375      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
376    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
377      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
378    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
379     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
380       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
381    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
382       scheme to use for vorticty-term ;
383     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
384       (with default selectVortScheme, return to original discretisation)
385     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
386    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
387    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
388      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
389      also fix diagnostics VISCAHW & VISCA4W.
390    
391    checkpoint59o
392    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
393    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
394      move a few statemens out the main loop into separate loops
395    o pkg/shelfice:
396      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
397        (kg/m^2/s), does not break tests, because in verification/isomip,
398        rhoConstFresh=rhoConst (by accident)
399      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
400      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
401        new file model/src/seawater.F, so that they are available for all pkgs.
402      - convert potential temperature into in-situ temperature. This changes the
403        isomip tests => update tests
404    o add a flag writePickupAtEnd (default=true) to be able to suppress
405      writing a pickup at the last timestep
406    o tools/mpack-1.6 :
407      - disable automake (not working) and autoconf (not needed).
408      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
409        also cleaner with much less compilation warnings.
410    o pkg/profiles:
411      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
412      (for "less than 32 characters name" compiler requirement)
413    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
414      conditions that have a different sampling frequency than S/T/U/V obcs
415    o pkg/diagnostics (stats-diags):
416      - fix global Min/Max in case 1 processor get only empty tiles
417    o genmake2: replace (4 times)
418         make genmake_tc_1.o >> genmake_warnings 2>&1
419      with
420         COMM="$CC $CFLAGS -c genmake_tc_1.c"
421         echo $COMM >> genmake_warnings
422         $COMM >> genmake_warnings 2>&1
423      to make genmake2 always see the value of CC as specified in the optfile.
424    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
425      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
426      - modify verification advect_cs test to test SOM-advection on CS-grid.
427    o pkg/ctrl:
428      - Rewrite of ctrl_map_ini_ecco.F,
429        introducing a generic routine (ctrl_map_ini_gen.F).
430      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
431    
432    checkpoint59n
433    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
434      number in dedicate array "hdiag":
435      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
436        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
437      - many small changes (integer format) for large number of diagnostics
438      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
439        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
440    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
441      usingSphericalGrid, this allows to define the rotated grid coordinates
442      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
443      geographical coordinates according to the inverse of the rotation defined
444      by the Euler angles, so that Coriolis parameter and online-interpolation by
445      exf works with the geographical coordinates on XC/YC/XG/YG.
446      Naturally, this feature does not work with all packages, so some
447      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
448      profiles), because there the coordinates are assumed to be regular
449      spherical grid coordinates.
450    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
451      - introduce isopycnal diffusion coefficient control.
452    o tools/adjoint_options:
453      - additional control vector components.
454    o pkg/mnc: have mnc create marginally meaning full coordinate variables
455      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
456    o pkg/mypackage:
457      - add example of read/write pickup for state-var ;
458      - add entry points to the main code for state-vars diags & write-pickup.
459    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
460      transitions for useExfYearlyFields
461      - add new subroutine that determines the file to read from for
462        use*YearlyFields = .TRUE. and .FALSE.
463      - add a verification experiment to global_with_exf that tests
464        useExfYearlyFields with USE_EXF_INTERPOLATION defined
465    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
466      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
467      subroutines (which could be generated from a template, because they are
468      almost identical), for now they are included in obcs_prescribe_read.F for
469      simplicity
470    o pkg/exf:
471      - add a little more diagnostic to exf_interp_read (in analogy to
472        mds_read_field, can be turned off with debugLevel < debugLevA=1)
473      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
474        ugly but fast by unrolling short inner loops, inserting a unroll=8
475        directive in routine lagran, and splitting a loop and making do while the
476        outermost loop (the latter requires the intoduction of index arrays)
477    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
478    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
479      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
480    o verification/seaice_obcs: updated for restart test and latest options
481    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
482      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
483      for now this is only available for the C-grid code and also within
484      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
485    
486    checkpoint59m
487    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
488      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
489    o gad_som : fix flux output (& diagnostics) to have same units as other  
490      advection scheme fluxes (was previously multiplied by deltaT).  
491    o added verification/seaice_obcs both to test seaice open boundaries
492      and to provide an example matlab scrpt for generating them
493    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
494    o pkg/salt_plume: clean up salt_plume_frac.F to
495      remove redundancy in PlumeMethod 1 and 4
496    o pkg/kpp: added saltplume diagnostics
497    o pkg/obcs and pkg/seaice:
498      - do not set uice and vice to zero when OB*icefile are unspecified
499      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
500      - moved seaice tracer obcs after call to seaice_growth
501    o pkg/salt_plume: added various options for salt plume depth
502      criterion and for vertical distribution of the salt
503    
504    checkpoint59l
505    o pkg/ptracers: new version of ptracers pickup:
506      read meta file and write only fields which are needed to restart.
507      ( same logic as main pickup file ; also using pickupStrictlyMatch )
508    o pkg/seaice:
509      - add timescale for melting due to warm mixed layer as a means of
510        setting SEAICE_availHeatFrac more conveniently
511      - add a CPP-flag/runtime parameter check for flooding algorithm
512      - reformulated availHeat in seaice_growth.F to be independent of AREA
513    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
514      unit changes
515    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
516    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
517      SX vector computer.
518    o pkg/seaice:
519      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
520        seaice forcing fields can now be read only through pkg/exf
521      - removed some unused halos
522    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
523    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
524      or U/VICE from U/VWIND before computing U/VSTRESS
525    
526    checkpoint59k
527    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
528      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
529    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
530      all experiments pass when compile with un-initialised var. checking option.
531    o added pkg/salt_plume
532    o script to test restart (for now, in MITgcm_contrib/jmc_script)
533    o pkg/seaice: new read/write pickup version.
534      read meta file and write only fields which are needed to restart.
535      ( same logic as main pickup file ; also using pickupStrictlyMatch )
536    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
537    o lab_sea.hb87: modify the domain & update output.hb87.txt :
538      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
539      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
540      process. Fixed here by closing the domain at the Northern boundary.
541    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
542    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
543      a set of consecutive levels in/from a 3-D array.
544    o pkg/ptracers:
545      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
546      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
547    
548    checkpoint59j
549    o in pkgs: dic, obcs, offline, rbcs:
550      standard way to compute coeff. for time interpolation between 2 time reccords
551      which retains full precision (& make results less dependent on compiler).
552      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
553    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
554      packages instead of reading ice cover and wind speed separately
555    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
556     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
557      to allow to compile customized code before the update)
558    o cleaning-up:
559      - fix CPP instruction syntax in pkg/obcs
560      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
561        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
562      - fix some threads issue in IO parts.
563    o pkg/dic:
564      - add tons of "_d 0" (--> much better testreports !)
565       and then update outputs of tutorial_global_oce_biogeo
566    o pkg/mom_fluxform:
567      add a special version of momentum advection intended to conserve momentum
568      next to a bathymetry step or a coastline edge. (default = off = #undef)
569    o new read/write pickup version:
570      - for now, only implemented for main (mdsio) pickup file.
571      - write out only what is needed to restart; merge pickup_nh , pickup_ph
572        and main pickup together.
573      - read meta file; read only what is needed to restart; stop if a field
574        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
575        if it make sense (even if the restart is not perfect).
576      - if no meta file, assume that pickup to read corresponds exactly to
577        a pickup that would currently be written.
578      - read pickup written in the old format (until checkpoint59i) if it
579        recognizes an old meta file (no field-list).
580      - add a meta file in exp. which starts from a pickup: 2 cases:
581        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
582         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
583        b) a meta file describing the content of the associated pickup file
584         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
585    o pkg/mdsio & pkg/rw:
586      - new routine to read a meta file ; new set of routine to read
587        Multiple-fields file (with meta file).
588    o added open boundary conditions capability for seaice
589        HSNOW, HSALT, UICE, and VICE
590    
591    checkpoint59i
592    o adjoint:
593      * fix multiDimAdvection adjoint
594        (partial recomputation problem by TAF for fVerT(:,:,kDown)
595        and comlev1 size definition (maxpass vs. max. number of tracers)
596      * verification/global_ocean.90x45x15 adjoint now tests
597        NLFS and multiDimAdvection using DST3 (=30)
598      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
599    o pkg/kpp: add "_d 0" to real constant (if missing);
600      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
601      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
602    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
603      for internal parameters related to restart process (formerly from PARAMS.h)
604      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
605    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
606      as argument. (only atm2d & obcs write_pickup have not yet been updated)
607    o pkg/monitor:
608      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
609      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
610      - account for deep Atmosphere factor and density factor (anelastic)
611    o added open boundary conditions capability for seaice HEFF and AREA
612    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
613      thermodynamics
614      - requires a little reorganization, which affects the testreport results
615        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
616        so that now the conservative form is tested
617      - add a few comments
618    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
619    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
620    o add new diagnostics to seaice: advective, diffusive fluxes (only for
621      multidim-advection, for scheme 2 they are not filled) and transports,
622      thermodynamic growth rates
623    o change units of EmPmR (inside the code, + within coupling interface)
624      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
625      Affects results @ truncation level (cg2d match) and update output of
626       experiments: lab_sea(6), global_ocean.90x40x15(10),
627      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
628      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
629      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
630      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
631    
632    checkpoint59h
633    o pkg/exf:
634      - improve vectorization by moving if-statement out of loops in
635        exf_mapfields, exf_radiation
636      - exf_bulkformulae.F: introduce 2D fields and vectorize code
637    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
638    o testreport:
639      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
640        monitor & update offline_exf_seaice exp. output.
641      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
642    o pkg/seaice:
643      - bug fix in the evp solver: boundary conditions were affected be
644        masking of zMax/zMin (changes results)
645      - minor bug fix in boundary conditions in seaice_calc_strainrates
646        (changes results for no_slip)
647      - seaice_lsr.F: make interpolation of eta dependent on boundaries
648      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
649      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
650        stress formulation and no-slip boundary conditions
651    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
652      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
653    o pkg/seaice: a first HSALT time stepping equation has been checked in
654    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
655      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
656      without requiring DO-IF statements
657    o pkg/thsice:
658      use continuous power-law function for partition of energy between lateral
659      melting/freezing and thinning/thickening ; old code using step function
660      still available with #undef THSICE_FRACEN_POWERLAW
661      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
662    o testreport: change AD testing : check against results/output_adm.txt
663      using same scripts as for forward test.
664    
665    checkpoint59g
666    o adjoint testing: in preparation for changing testreport:
667      - output format: cost and grad written on separated lines
668      - ad output results in directory "results" (instead of "results_ad")
669    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
670    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
671    o pkg/ecco: allow user defined cost function contributions
672    o testreport:
673      Allow to choose (per experiment) the list of tested output variables
674       and the main variable (used to issue a pass/FAIL ) ;
675      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
676      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
677      Also modify printing of summary:
678       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
679       b) echo the list of tested variables in the individual summary.txt of
680          each experiment.
681    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
682      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
683      (but still depend on the tile decompostion of the domain).
684    o pkg/seaice: change a discretization detail to make the B-grid code
685      "more symmetric". This change is likely to remove all "ridges/leads" that
686      where quasi-aligned with the grid in B-grid solutions. It may also be
687      the solution to the stress coupling issues with the B-grid.
688    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
689      remove .cvsignore from input dir. (since testreport no longer run here).
690    o pkg/thsice:
691     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
692     - fix reshaping of sea-ice just after advection:
693       melt all the ice only if ice-volume is too small.
694     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
695       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
696     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
697    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
698      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
699    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
700      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
701      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
702      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
703      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
704      -> update output.txt
705    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
706     this affects truncation error: -> update output.txt of exp:
707      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
708      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
709    
710    checkpoint59f
711    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
712    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
713      a bounded range (in forward mode)
714    o pkg/ecco, ctrl, autodiff and mom_common:
715     internal parameter controls, completements of implementations
716    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
717    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
718      (not seem any difference in testing results).
719    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
720       at face corners.
721    o pkg/generic_advdiff:
722     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
723      loop range indices for computing vertical advection tendency
724      and do the calculation in the interior only (no overlap) ;
725      for now, only implemented for SOM advection (to save CPU time).
726     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
727    o exch2 adjoint
728      First set of changes:
729      - add exch2 hand-written adjoint templates
730      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
731        This will require cleanup in pkg/autodiff/*.F
732        (changed routines currently kept separate in verif. code/)
733      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
734        that used to hide exch2 or cubed-sphere specific code
735        (commented via 'cph-exch2')
736    o pkg/seaice
737      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
738    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
739       output of global_ocean.cs32x15.thsice .
740    
741    checkpoint59e
742    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
743      for B-grid vector (not yet tested) and C-grid vector (<- only used
744      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
745    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
746      (#ifdef ALLOW_SALT_PLUME)
747    o gather_2d/scatter_2d: removed halo regions
748    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
749      scheme and the corresponding test case (under front_relax dir). For now,
750      only available with Skew-flux form and not yet tested in realistic set-up.
751      adjoint: store directives updated, but gradient checks deteriorated,
752      so maybe GM/Redi adjoint is now broken.
753    o seaice adjoint
754      * add AREA, HEFF, HSNOW as control variable
755        (should not change lab_sea results)
756      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
757    o pkg/seaice:
758      * added computation of saltFlux in seaice_growth;
759        For time being, sea ice salinity is assumed constant
760        contribution of snow flooding to freshening of sea ice is neglected.
761        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
762        defaults to 0.0 in order to maintain backward compatibility.
763        Typical values for SEAICE_salinity are 4 to 10 g/kg.
764      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
765      * added SEAICE_availHeatFrac, which specifies fraction of surface level
766        heat content used to melt or grow ice
767      * commented out cap of HICE: it helps keep ice thinner
768      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
769      * applied OBCS T/S mask to HEFFM sea ice mask
770    
771    checkpoint59d
772    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
773     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
774     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
775    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
776     and change default value of parameter "GM_Small_Number";
777     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
778       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
779       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
780    o pkg/ecco: cost function when applying pkg/smooth to controls
781    o pkg/ctrl: add forcingPrecond run time parameter
782    o pkg/seaice:
783     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
784     - fix bug in metric terms of u-equation in LSR solver (implicit part),
785       changes verification/lab_sea
786     - rearrange implicit part of u-equation in LSR solver to make it easier to
787       read, understand, and debug. This causes changes at the truncation level.
788     - fix (serious) bug in the boundary conditions (sign error in the implicit
789       part) of the LSR solver. Changes all LSR results.
790     - fixed problem with HSNOW initialization to avoid thick snow when AREA
791       is initilized with small values - does not change lab_sea results.
792     - added HsnowFile initialization capability
793    o pkg/smooth: addition to model/src and pkg/ctrl so allow
794     initialization of pkg/smooth and application to control vector
795    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
796    o dependencies: pkg/profiles requires pkg/cal
797    o pkg/profiles:
798     - added option ALLOW_PROFILES_GENERICGRID
799         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
800         that interpolation information (grid points and coefficients) is provided
801         within the netcdf input files.
802         -> sample matlab scripts can be found in MITgcm_contrib/gael
803         that allow you to prepare netcdf input files.
804     - also modified: cleaner include statements, cleaner error print statements,
805       cleaner stops when error, and more tests of the netcdf input files consistency.
806    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
807    o pkg/seaice:
808     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
809       requires a new routine: seaice_diagnostics_fill.F
810     - make sure that seaice does not move if not forced (pressure replacement
811       method, Hibler and Ip, 1995), changes results
812     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
813     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
814       It is turned off by default (=-1.), because it changes the results.
815     - make it possible to read AREA from a file, too.
816    
817    checkpoint59c
818    o add S/R and diagnostics for oceanic mixed-layer depth
819    o move GMRedi call after all vertical mixing schemes (including KPP)
820    o pkg/thsice:
821     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
822      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
823    o pkg/obcs:
824     - bug fix for balance code
825    o pkg/seaice:
826      - allow values of SEAICE_elasticParm > 1
827      - add new parameter SEAICE_evpTauRelax as an alternative
828        to SEAICE_elasticParm
829      - make lsr boundary conditions free slip (by default), changes result
830      - add code for no slip boundary conditions for lsr
831      - set minimum of zeta to zero (and not 4e8) (changes results)
832      - add a cap on AREA after advecting AREA if seaice_growth is not called
833    o change calculation of Visbeck K:
834      - no longer depend on tapering scheme; instead, compute slope (limited
835        by GM_maxSlope). this is equivalent to what was comuted before with
836        clipping or linear tappering.
837      - fix vertical averaging (wrong by 1/2 level)
838      - leave the old version (but will not be maintained) within
839        #ifdef OLD_VISBECK_CALC / #endif
840      - update output of exp. ideal_2D_oce
841    o change error catch in calc_r_star to improve vectorization
842    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
843      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
844    o adjoint:
845      Re-organized adjoint checkpointing according to Matt Mazloff
846      (but with modifs/completions/cleanups)
847      Storing is now bundled into large arrays to optimized I/O
848      (and second step in cleanup of the_main_loop)
849    
850    checkpoint59b
851    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
852      - export/import (between ocean & coupler) fields needed for ocean DIC.
853    o pkg/seaice:
854      - get rid of three more exchanges seaice_calc_viscosities (required
855        different loop boundaries in seaice_lsr and seaice_ocean_stress)
856      - bug fix in seaice_ocean_stress (update of lab_sea required)
857      - reduce loop boundaries to necessary minimum also in seaice_evp
858      - go back to the old way of computing deltaC/Z as the adjoint likes that
859        better
860    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
861      passive tracer to an Age Tracer) + update output.txt
862    o pkg/exf:
863      - implement A-grid / C-grid selection for wind-stress input files.
864      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
865      for now, in exf_bulk_largeyeager04.F only :
866      - change implementation for case where windspeed + 2. components wind-stress
867        are read-in. AND use rhoConstFresh to convert evap.
868    o pkg/seaice:
869      - use correct EXCH_UV for wind-forcing (on A-grid).
870      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
871        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
872    o pkg/exf:
873      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
874      EXF_INTERPOLATION:
875      - merge global_with_exf/code version of exf_interp_read.F
876        to the main code ;
877      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
878        reading the file ; Important: This options needs to be defined to recover
879        previous code.
880        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
881      - no longer loose real*8 precision along the way when using exf_iprec=64.
882    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
883      - change discretisation of evp-solver in order to avoid another exchange
884        (changes lab_sea) and clean up a little
885      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
886        help the adjoint (this also changes the results slightly)
887      - add a few "_d 0" where they had been missing in seaice_evp.F
888      - cleaning up: remove unused seaice_calc_rhs.F
889    o pkg/exf: some cleaning-up:
890      - change various "constants" into runtime parameters
891      - cleaned-up Large&Yeager04 routine which should eventually
892        replace exf_bulkformulae.F (changed names of S/R and CPP)
893        and merged various ALLOW_ATM_WIND options
894     only used with thsice pkg (in thsice_get_exf.F):
895      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
896        which are used when useStabilityFct_overIce=TRUE (= the default)
897      - change default values of ice & snow emissivity and scale downward LW
898        by ice & snow emissivity.
899    o pkg/thsice:
900     fix few little problems, in thsice_calc_thickn.F:
901      - growth vertically (and not laterally) if iceFrac == iceMaskMax
902      - melt only laterally if hIce < hThinIce (as the comments say)
903      and in thsice_extend.F:
904      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
905      - start to form ice as soon as the minimum ice-volume is reachable.
906     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
907      and cpl_aim+ocn
908    o pkg/kpp
909     - move computation of surface related input fields to KPP into a new
910       subroutine kpp_forcing_surf.F
911     - remove wrong (within bi,bj loops) EXCH calls.
912     - little cleaning (add argument myThid in last position, cvs header ...)
913     - for now, fix conservation problem by exchanging KPPviscAz (may not
914       be the best fix)
915    o pkg/seaice
916     - check for inconsistent evp parameter/cpp-flag combination
917     - remove leftover errIO flat for obsolete name list error handling
918    o OpenAD
919     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
920    
921    checkpoint59a
922    o pkg/seaice: some parameter clarifications and a little bit of clean up
923    o pkg/thsice: rename run-time parameters:
924       himin       -> hIceMin
925       himin0      -> hThinIce
926       hihig       -> hThickIce
927       i0          -> i0swFrac
928       transCoef   -> bMeltCoef
929       frac_energy -> fracMelting
930      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
931       with default values (for now) that do not change the results.
932      remove old version of thsice vars advection in pkg/seaice.
933    o in FFIELDS.h:
934      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
935      - make pLoad & sIceLoad always available (but still only used if
936         ATMOSPHERIC_LOADING is #define).
937    o pkg/kpp: replaced _KPP_RL with _RL
938    o bug fixes for vertical diffusivity computations when both KPP and
939        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
940        are no longer updating the vertical diffusivity array
941        (passed as argument) but are (re-) setting those arrays.
942    o pkg/seaice: fix bug in evp solver, while doing that
943      - change (improve?) discretization of stress computations for both
944        cgrid-lsr and evp solver
945      - add a new routine to compute strain rates
946      - the above changes lab_sea results
947      - add no slip conditions for evp solver (off by default), lsr-version
948        may follow
949      - fix exchange for shear at Z-points (does not change lab_sea)
950      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
951        (to force the user to pick a time step since there is not "safe" way
952        of choosing it)
953      - add principal stress diagnostics
954      - rearrange fields for evp a little to avoid having to call a: too many
955        exchanges and b: exchanges for stress trensor components which we do
956        not have.
957      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
958        of evp, complete rewrite for lsr case (latter is does not yet work
959        in all cases)
960    o pkg/kpp: add code to have mixing in shelf ice caverns
961      - add myThid to all kpp routines (long overdue)
962    
963    checkpoint59
964    o pkg/exf:
965      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
966        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
967      - move exf header files from lower_case.h to UPPER_CASE.h ;
968        add missing cvs Header & Name
969      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
970      - add namelist param. selectStressGridPosition, exf_monFreq
971      - retire many _CLIM routines, and remove data.exf_clim
972        + params moved to data.exf
973        + climsst, climsss now handled by exf_set_gen, i.e.
974          climss?period=0 refers to constant field,
975          climss?period=-12 to monthly forcing
976      - split up namelists in data.exf
977    o pkg/seaice:
978      - remove seaice_exch and seaice_exch_uv
979      - remove superfluous exchange of theta
980      - add myThid to seaice_budget_ocean/ice
981      - add new interface for atmospheric wind forcing (C-grid only)
982        + new routine
983        + two new field (taux, tauy for stress over ice)
984        + removed one global field (DAIRN) for C-grid case only
985    o pkg/thsise
986      - 2nd set of modifs for thsice adjoint in conjunction with exf
987    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
988    
989    checkpoint58y_post
990    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
991      vertical diffusivity, similar to that in MOM4; turned on using
992      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
993      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
994    o Added capability for 3D specification of background vertical diffusion
995      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
996      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
997      "data" file that contains the 3D vertical diffusivity coefficients.
998    o ice dynamics (pkg/seaice) with thsice thermodynamics:
999      - add code within pkg thsice to advect & diffuse sea-ice fields
1000      similar to (and will replace) what has been added in  seaice_advdiff.F,
1001      but: - conserving Mass, Heat & Salt.
1002           - better when using non-linear advection scheme (not yet fully tested)
1003           - can also be used in atmospheric set-up (for now, only the diffusion).
1004    
1005    checkpoint58x_post
1006    o IO option for global-file compact format:
1007      - add options when generating topology (utils/exch2/matlab-topology-generator)
1008      - add I/O capability (pkg/mdsio).
1009      - adapt utils/matlab/rdmds.m to read this format.
1010      for now long-line format not yet supported by pkg/mdsio (& exch2).
1011    o shelfice: add a few diagnostics
1012    
1013    checkpoint58w_post
1014    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1015      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1016      (and replace horiVertRatio in NH code).
1017      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1018                         and tutorial_plume_on_slope (sensitive to truncation)
1019    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1020      directly to drive seaice model (C-grid only)
1021    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1022     - reintroduce computation of wind from stress,
1023     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1024       mass points to avoid tau = 0
1025     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1026    o rdmnc.m: make it work with "global" files created with gluemnc
1027    o rdmnc.m : some improvements in dealing with singleton dimension
1028      (tested on all testreport mnc output files).
1029    o genmake2: disable pkg/profiles if netcdf test fails.
1030    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1031    o move call to cal_readparms up to make calendar parameters/variable available
1032      to all packages
1033    
1034    checkpoint58v_post
1035    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1036      useDynP_inEos_Zc tested.
1037    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1038    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1039      and portions thereof.  See read_cs.txt for description and examples.
1040    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1041      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1042      following the great-circle arc between those 2 points.
1043    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1044      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1045    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1046     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1047     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1048     - still needs work (not working with some options ; efficiency to improve)
1049       and serious testing.
1050     - use this scheme for temperature & salinity in 2 advection test exp.:
1051       advect_xy & advect_xz, respectively.
1052    
1053    checkpoint58u_post
1054    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1055    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1056    o testreport: add option "-skipdir" to skip some test.
1057    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1058      momentum calculation.
1059    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1060    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1061      remove checkpoint.F and the_correction_step.F (no longer used);
1062      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1063    o add option (linFSConserveTr) to correct for tracer source/sink due to
1064      Linear Free surface
1065    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1066    o pkg/thsice: fix reading mnc-pickups
1067    
1068    checkpoint58t_post
1069    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1070    o pkg/mdsio:
1071     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1072       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1073       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1074     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1075     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1076       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1077     - new S/R (to replace MDSWRITEMETA), which allows to write more
1078       informations (variable names, time ...) to meta files.
1079     - modify rdmds.m to give back the meta file content.
1080    o pkg/diagnostics: change vertical interpolation to be safer, and more
1081       flexible (define p-levels to interpolate to in data.diagnostics);
1082      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1083       diagnostic pointer.
1084    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1085    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1086    o fix multi-category seaice:
1087     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1088       SEAICE_MULTICATEGORY
1089     - fix short wave heat flux
1090    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1091       and allow to use EVP solver. Change forward lab_sea: test both EVP
1092       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1093    o Initial check-in of lab_sea adjoint
1094      (very similar to natl_box_adjoint/code_seaice)
1095      * used C-grid and EVP solver
1096      * used KPP, GM/Redi
1097      * uses inAdExact=.TRUE.
1098      * gradient checks fail for both ADM and TLM
1099        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1100        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1101        issue is related to forward mismatch between g77 an ifort
1102    o pkg/seaice: overhaul of thermodynamics
1103     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1104     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1105     - move a few global fields out of SEAICE.h into seaice_growth.F and
1106       make them 2D (FICE/QNETO/ ...)
1107     - remove FO (it is the same as QNETO)
1108     - introduce a few local fields to avoid modifying external fields such
1109       as atemp, etc.
1110    
1111    checkpoint58s_post
1112    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1113      changed exf_set_gen.F so that
1114        genperiod=0 means input file is one time-constant field and
1115        genperiod=-12 means input file contains 12 monthly means
1116    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1117      this affects truncation error ; generate new output file for exp. which
1118      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1119        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1120        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1121        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1122        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1123        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1124    o start implementation of deep-atmosphere and anelastic formulation
1125    o verification: remove 2nd copy of input files and use script "prepare_run"
1126      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1127    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1128    o profiles: fix for multithreaded case
1129    
1130    o diagnostics: rename few diags:
1131      s/'PRESSURE'/'RCENTER '/g
1132      s/'TICE    '/'oceFreez'/g
1133      s/'TAUX    '/'oceTAUX '/g
1134      s/'TAUY    '/'oceTAUY '/g
1135      s/'SWFLUX  '/'oceQsw  '/g
1136      s/DIFx/DFxE/g
1137      s/DIFy/DFyE/g
1138      and add few ocean-forcing diagnostics:
1139      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1140    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1141      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1142      as actual snow thickness.  It now refers everywhere to effective snow
1143      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1144    
1145    checkpoint58r_post
1146    o modifications to pkg/seaice/growth.F, which change results of
1147      lab_sea experiment: fixes pertain to melting snow over open water, to
1148      masking EVAP under sea ice, and to using the correct AREA variable for
1149      computations of EVAP, PRECIP, HSNOW, and GHEFF
1150    o add ability to read bathy, salt, and theta using MNC (off by def)
1151    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1152      both are turned off by default and do no change any results
1153    o seaice advection with pkg/thsice: a step toward the use of non-linear
1154      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1155    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1156      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1157      in natl_box (affects results @ truncation level: update output.txt)
1158    o multi-threading and IO:
1159      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1160      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1161        (needed to work with SingleCpuIO): tested in all verif. exp.
1162    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1163      affects the results (but none of the verification test uses this scheme).
1164    o Adding some pkg/diagnostics capability to pkg/seaice
1165      (will certainly be subject to changes)
1166    o ctrl: adding new control variables:
1167      lwflux, lwdown, evap, snowprecip, apressure, runoff
1168    
1169    checkpoint58q_post
1170    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1171      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1172      high_res_cube configuration by 4% on Columbia.
1173    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1174      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1175      dynamical allocation (seems to work in multi-threaded).
1176    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1177      single CPU io) so that TAF does not have to see EESUPPORT.h
1178    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1179    
1180    checkpoint58p_post
1181    o obcs: stop if obcs is used with useCDscheme = .true.
1182    o shelfice:
1183     - fix a sign error so that no slip at shelfice interface works
1184     - remove stop for combination non-hydrostatic code and shelfice. That does
1185       not mean, that the results are correct, but at least they are numerically
1186       stable
1187    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1188    o added adjoint exch routined for all exch*3d* routines
1189      and updated flow directives
1190    
1191    checkpoint58o_post
1192    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1193      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1194    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1195      and clean-up reading/writing of pickup files.
1196    o fix local version of read/write pickup (NH part) in rotating_tank/code
1197    o simplify EXCH interface:
1198     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1199     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1200    o added the regrid package
1201    o shelfice:
1202     - add a simple boundary layer scheme to reduce noise
1203     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1204    
1205    checkpoint58n_post
1206    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1207       local variable (not in common block).
1208    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1209      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1210      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1211        to work with SingleCpuIO.
1212    o add "_d 0" to real constant of pkg/cfc subroutines ;
1213       update exp. cfc_exemple & tutorial_cfc_offline output files.
1214    o multi-threading and IO:
1215      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1216        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1217      - barrier before and after reading.
1218      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1219      - avoid using MDS_WRITELOCAL for LAND pkg output.
1220      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1221        common-block variables ; Allows multi-threading with master-thread IO.
1222    o change default MAX_NO_THREADS from 32 to 4 ;
1223      and stop cleanly when MAX_NO_THREADS is too small.
1224    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1225    
1226    checkpoint58m_post
1227    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1228       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1229    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1230       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1231       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1232    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1233        add MITgcm_tutorials (= code + all the tutorials)
1234    o ecco, option to compute cost for total ssh (mean+anom)
1235    o consistent with addition of ptracer and ssh in pkg/profiles
1236    o profiles: adding ptracer and ssh
1237    o testreport: change multi-test output-file name
1238      (from output.txt.{name} to output.{name}.txt)
1239    o profiles: now ok for mutli-tiles case
1240    o seaice: add 4 parameters for different advection schemes for area,
1241      (effective) seaice thickness, enthalphy, and snow height. Their default
1242      is the standard parameter SEAICEadvScheme
1243    o calc_gw:
1244     - add cosFacU in zonal viscous flux (harmonic.visc.).
1245     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1246       of tutorial_plume_on_slope.
1247    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1248    o calc_gw: true flux-form, account for horizontal grid spacing.
1249      update rotating_tank results, but not plume_on_slope (affected at
1250      truncation level, 11 digits).
1251    
1252    checkpoint58l_post
1253    o calc_gw:
1254     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1255     - remove side-drag for now (need to fix it); update plume_on_slope results.
1256     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1257    o commit code to make SST/SSS weights spatially variable
1258      (based on either variable in-situ or variable initial T/S weights)
1259    o pkg/ecco:
1260      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1261        now based on horizontally varying weights wthetaLev, wsaltLev
1262      * cost_averagesflags now returns year indices in addition to day, month
1263      * sflux balance is performed on annual basis
1264        (sflxumm, sfluxmm2, bal_sfluxmm)
1265      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1266        including separate counting and multipliers
1267    o pkg/rbcs
1268      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1269    
1270    checkpoint58k_post
1271    o testreport:
1272     - always build in dir. "build" (if not there, mkdir build instead of building
1273       & running in input)
1274     - run in dir run (if it exists), in build otherwise.
1275     - call prepare_run (if input/prepare_run exists)
1276     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1277    o pkg/exf modifications to interpolation and rotation routines for more
1278       reasonable treatment of North Pole singularity: for tracers North Pole
1279       value is set to northernmost zonal-mean value, for zonal velocity it is
1280       set to zero, and for meridional velocity it is set to northernmost value.
1281    o pkg/exf/exf_check_range.F
1282     - add tile index to diagnostics and move stop statement to the very
1283       end of the routine.
1284    o pkg/diagnostics: (diagnostics_main_init.F)
1285      define title of isomorphic variables according to the current config.
1286    o pkg/thsice with pkg/seaice dynamics:
1287    - fix domain of computation (interior only, required for exf) and do exchanges
1288    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1289    o towards a standard way of dealing with multi-threading in MONITOR
1290      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1291    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1292       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1293    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1294    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1295    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1296       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1297    o tracer advection:
1298     - clean-up and simplify calc_common_factors.F
1299     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1300       advection subroutine (but still not used within DST advection S/R)
1301    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1302    
1303    checkpoint58j_post
1304    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1305      from file (collects calls previously in FORWARD_STEP)
1306    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1307    o adjoint store dir. adjusted accordingly
1308    o genmake2
1309      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1310    
1311    checkpoint58i_post
1312    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1313      on wind stress (SEAICEstressFactor defaults to 1.)
1314    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1315      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1316    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1317      on CS-grid: no longer loosing mass.
1318    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1319    o pkg/ggl90: fix sloppy output and fix a bug
1320    o pkg/seaice: added SEAICEuseEVPpickup parameter
1321      - Set to false in order to start EVP solver with
1322        non-EVP pickup files when using SEAICEuseEVP
1323      - fix sign error in diffusion in seaice_calc_rhs
1324    
1325    checkpoint58h_post
1326    * Modifications for bottom topography control
1327      o replace hFacC by _hFacC at various places
1328      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1329      o add non-self-adjoint cg2d_nsa
1330      o update autodiff support routines
1331      o re-initialise hfac after ctrl_depth_ini
1332      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1333    * Adding verification for 5x5 box (4-layer) bottom topography control
1334    
1335    checkpoint58g_post
1336    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1337       used for mean seasonal cycle, mean diurnal cycle); add an example
1338       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1339    o pkg/ggl90:
1340      - add parameter (minimum surface kinetic energy)
1341      - fix bug (avoiding division by zero)
1342    o couple pkg/thsice to pkg/seaice:
1343      - modify advection in seaice to accomodate new scalar fields to be advected
1344      - only muliDimAdection scheme work with seaice/thsice
1345      - mapping of thsice-variables to seaice-variables, back and forth
1346      - does not break the verification experiments, but does not give the
1347        desired results either
1348    o pkg/seaice
1349      - make (default) second order advection a bit less confusing?
1350    
1351    checkpoint58f_post
1352    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1353      to pkg/seaice):
1354      - new routines thsice_map_exf and thsice_get_exf provide the interface
1355      - add an additional formal parameter to thsice_solve4temp
1356    o pkg/exf:
1357      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1358      - correct Stefan-Boltzmann constant
1359      - new parameter for longwave surface emittance
1360      - separate some stuff from exf_bulkformulae into new routines  
1361        exf_radiation, exf_wind
1362      - add new parameters and constants: longwave emissivity for ocean, ice
1363        and snow, evaporation parameters over ice
1364      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1365        either wind from stress or stress from wind
1366    o pkg/thSIce:
1367    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1368    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1369       and THSICE_CALC_THICKN
1370    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1371    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1372      to make debugging easier.
1373    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1374    o pkg/bulk_force:
1375      - clean-up comments and parameters ;
1376      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1377    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1378      generate new output for test-experiment: aim.5l_cs.thSI
1379    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1380      testreport accordingly
1381    
1382    checkpoint58e_post
1383    o SEAICE_CGRID adjoint done
1384    o R_STAR adjoint implemented.
1385      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1386      * need to sort out init. of h0facc, etc.
1387    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1388      to be able to use it in pure forward.
1389    
1390    checkpoint58d_post
1391    o upgrade simple test-experiment to tutorial example:
1392     step.1: duplicate the experiment and (step.2) will remove the old copy.
1393      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1394      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1395      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1396      tutorial_global_oce_biogeo    <- copy of dic_example
1397      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1398      tutorial_plume_on_slope       <- copy of plume_on_slope
1399      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1400      tutorial_global_oce_optim     <- empty for now (David ?)
1401      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1402     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1403    o correct a sign problem in cost_scat.F
1404    o obcs and ptracers: fix boundary conditions for advections schemes
1405      with larger stencil
1406    o thsice adjoint: start
1407    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1408      completeness
1409    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1410      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1411    o ptracers adjoint:
1412      * avoid extensive recomputatations
1413      * fix missing re-init. of gptr (missed by TAF)
1414    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1415      me to turn off the excessive output to STDOUT that this package produces
1416    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1417      and add those terms in Vector-Invariant formulation.
1418    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1419      if the control period (xx_hfluxperiod etc) is 0
1420    o in profiles pkg, clean routines and fix details
1421    o in ecco pkg, reading ssh data:
1422      fix problem in case the model does not start at iter0=0
1423    o fix mnc-pickup/restart for ptracers
1424    o new package prifiles:
1425      code to compute profile-based cost by Gael Forget
1426      (modifs in ecco, ctrl, autodiff)
1427    o Benign bug fix in initialization (spotted by M. Mazloff) of
1428      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1429    
1430    checkpoint58c_post
1431    o adjoint: finish NLFS adjoint and provide reference output in
1432      verification/global_ocean.90x40x15/results_ad_nlfs
1433    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1434      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1435      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1436      with SEAICE_CGRID defined.
1437    o move calendarDumps from "data" to "data.cal" and clean-up the code
1438      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1439    o add useEXF & useCAL flags (for now, set in hard-coded way)
1440    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1441      (were missing in NH mode, and wrong in quasihydrostatic mode).
1442      waiting for Chris updated version of calc_gw to add those CALLs.
1443    o fix bug in quasihydrostatic S/R ;
1444      add a test for this option: global_ocean.90x40x15.qshyd
1445    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1446      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1447    o add on/off flag useOffLine for package OFFLINE
1448    o seaice:
1449      - modify advection so that it works also on the C-grid
1450      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1451        problem in multi-tile runs with C-grid
1452      - add flags for clipping ice velocities and/or masking solver forcing
1453      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1454        C-grid solver
1455      - added a few comments to seaice_diffusion.F
1456      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1457        are now exclusive)
1458      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1459        required re-ordering the code a little:
1460       + make DAIRN global variable (defined in SEAICE)
1461       + move computation of the viscosities eta and zeta into a new separate
1462         routine (because I need to recompute them in seaice_ocean_stress.F)
1463    
1464    checkpoint58b_post
1465    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1466      update output.txt of exp. aim.5l_cs.thSI
1467    o various mnc cleanups and improvements:
1468      + shrink lookup tables by factor of ~4
1469      + better error reporting when running out of lookup space
1470      + able to handle longer path/file names (up to 500 chars)
1471    o adjoint:
1472      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1473      - TBD: "hidden" mom_vecinv recomp. in dynamics
1474    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1475     (allow to differentiate between forcing components using new integer flags:
1476      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1477     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1478    o ecco
1479      - enable trend removal from SSH anomaly obs.
1480    o adjoint
1481      - a fix for PmEpR when #undef EXACT_CONSERV
1482      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1483      - try to fix "hidden" recomp. in forward_step for NLFS
1484        (NLFS seems broken sometimes after I checked it in)
1485    o seaice:
1486     - add c-grid version of the dynamic solver:
1487       + three new routines that are the c-grid substitute lsr, dynsolver
1488         and ostres
1489       + put a few fields that were local to dynsolver into global common
1490         blocks, so that I can move the computation of stresses etc into
1491         seaice_lsr (saves coding but may break the adjoint).
1492     - replace more hardwired parameters by runtime parameters
1493     - add ice masks that mask the rhs of the implicit solvers where there
1494       is no ice (commented out in seaice_dynsolver, because i am not sure
1495       if this works properly), eventually this should replace the clipping
1496       of ice velocities in seaice_dynsolver to +/-40cm/s.
1497    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1498      include it only where its needed
1499    o move balancing of fluxes before the call of external_forcing_surf
1500    o seaice:
1501      - correct units of turning angles (now they are really in degrees)
1502      - move computation of GWATX/Y out of main routine into dynsolver
1503      - initialize GWATX/Y in seaice_init
1504    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1505      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1506    o seaice: add runtime flags for turning angles (default to zero)
1507    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1508      and trend from exf forcing and ctrl control adjustments
1509    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1510      (since checkpoint57x_post)
1511    o change the default rotation period to 86164.s = the Earth rotation
1512    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1513      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1514    o seaice advection: add code for choosing between the default (2nd order
1515      central differences) and multiDim advection schemes provided by
1516      pkg/generic_advdiff
1517    o seaice:
1518      - removed all references to SEAICE_GRID.h fields from
1519        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1520        (cubed-sphere configuration will change a little)
1521      - grid computations in seaice_init are obsolete now.
1522      - cleaned up code a little so that is easier to read (hopefully).
1523      - added new (better?) discretizations of default advection and diffusion
1524        (turn on with SEAICEuseFluxForm)
1525      - replace 1 in 3d global fields by kSurface in growth.F
1526      
1527    checkpoint58a_post
1528    o seaice:
1529      - bug fix in advect.F
1530    o shelfice:
1531      - separate shelfice load anomaly from pload (breaks with time
1532        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1533        Its default is 0., but it may be computed more cleverly from (unknown)
1534        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1535        done offline. A good approximation of the pressure load anomaly is
1536        necessary to avoid large initial adjustment processes underneath
1537        deep-reaching shelfice.
1538      - small fix in ISOMIP shelfice_thermodynamics
1539      - add more sophisticated thermodynamics of Hellmer (1989), this is
1540        now the default
1541      - give a few constants more intuitive names
1542    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1543      if bulk formulae are used in long integration (especially EmPmR). Turn
1544      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1545      if balancePrintMean, the imbalance that is substracted is printed to
1546      STDOUT.
1547    o fix bug (typo) in obcs_apply_eta.F
1548    o add a new package shelfice which enables us to model the circulation
1549      underneath shelf-ice with draughts of hundreds of meters.
1550     - works
1551     - to do: + include improved thermodynamics
1552              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1553                instead of new field kTopC
1554              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1555                instead of new field R_shelfIce and new code in ini_depth.F
1556                and ini_mask_etc.F?
1557              + adjust vertical mixing schemes?
1558    o seaice pkg:
1559     - add a cpp-flag to include a simple formula for a salinity dependent
1560       freezing point of sea water at the surface
1561     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1562       meridional stresses are now different (and hopefully correct)
1563    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1564       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1565       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1566    o pkg/diagnostics: add options and parameters for regional-statistics
1567       diagnostics ; define regions by reading a region-mask from a file
1568       (might add other options later)
1569    o pkg/bulk_force:
1570     - add option and parameters to use AIM surface-flux formulae.
1571     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1572       others forcing fields (defined in PARM05, parameter file "data") are loaded
1573       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1574     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1575     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1576     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1577       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1578     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1579    
1580    checkpoint58
1581    o add "--embed-source" option to genmake2 which, when the supporting
1582      tools can be compiled (as determined by genmake2) will turn on the
1583      embed_files package which then embeds the entire MITgcm source code
1584      (*.[fFhc] + Makefile) used for the build within the executable
1585      - requested by CNH but off by default
1586      - adds a paltry <9MB to the mitgcmuv executable in most cases
1587      - only writes the output when useEMBEDSRC in eedata is true
1588    o clean up 3-dim. relaxation codes:
1589      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1590      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1591      * Thanks to Tom Haine for testing!
1592    
1593    checkpoint57z_post
1594    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1595      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1596    o fix the pickup behavior for obcs in combination with ptracers
1597    o fix a bug in ptracers_external_fields_load
1598    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1599      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1600    o transfered surface NH pressure to eta field (if exactConserv).
1601    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1602         and update lab_sea output.txt file.
1603    o completing 3-dim. relaxation code: additional term
1604         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1605      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1606      * At compile time, in "EXF_OPTIONS.h" set
1607          #define  ALLOW_CLIMTEMP_RELAXATION
1608          #define  ALLOW_CLIMSALT_RELAXATION
1609      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1610          tauThetaClimRelax3Dim = 15552000.0,
1611          tauSaltClimRelax3Dim  = 15552000.0,
1612      * 3 cases:
1613          1) Use a constant-in-time 3-dim. field
1614          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1615          3) Real-time relax. to time-evolving prescribed field
1616    o Adding Laplacian-type smoothness constraint on
1617      initial and boundary (forcing) controls (ic, bc)
1618      * enable at compile-time via
1619        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1620      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1621      * Absolute scale somewhat unclear so far
1622      * no area weighting was included since no other cost term does so far
1623    
1624    checkpoint57y_post
1625    First step for a NLFS adjoint
1626    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1627    o new init. routines for calc_r_star, calc_surf_dr
1628    o still need to deal with ini_masks_etc
1629    o testreport seemed happy
1630    checkpoint57y_pre
1631    
1632    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1633    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1634    o add new offset feature to offline pkg (plus minor cleanup)
1635    o cfc fixes for final year of integration
1636    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1637      be in GCHEM_OPTIONS).
1638    
1639    checkpoint57x_post
1640    o fix testreport Pb in multiple test experiment.
1641    o cleanup our namelist syntax in verification:
1642      - make it more F95 standards compliant (some work still needed)
1643      - allows the vast majority of our tests to work with gfortran
1644    o Non-Hydrostatic:
1645     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1646     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1647    o Allow to apply AB on T,S rather than on AB(gT,gS):
1648     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1649     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1650       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1651     - need a "clever" read_pickup to restart from the other AB formulation
1652    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1653    o remove some unused variables (reduces number of compiler warnings)
1654    o adjoint
1655      * Disable useVariableViscosity for adjoint for time being
1656        (there are a number of extensive recomputations)
1657      * Initialize certain variables needed for adjoint
1658    
1659    checkpoint57w_post
1660    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1661                 fix the singleCpuIO RS version of MDSWRITEFIELD
1662       and add a WARNING if using globalFiles=T with multi-processors.
1663    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1664      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1665    o tracer advection scheme:
1666      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1667       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1668       was not very convenient).
1669      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1670       (further tests needed for the implicit DST & Flux-Limiter schemes).
1671    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1672      and sRef for convenience, handy, when you want to initialize
1673      ptracers in a large domain with a constant non-zero value. Also,
1674      untangle ptracers_init.F a little.
1675    
1676    checkpoint57v_post
1677    o change dome exp. to use variable viscosity in side-drag terms.
1678    o remove all the files from the cfc_offline test since they are now
1679      incorporated into tutorial_cfc_offline which has been producing
1680      identical results for a few days of testing
1681    o add new parameter: sideDragFactor to enable half-slip-side BC
1682      and change side-drag S/R to use viscosity from mom_calc_visc
1683      (can switch back by setting sideDragFactor=0.); affects results at
1684      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1685       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1686    o vorticity & strain are now computed without masking, to account for
1687      no-slip-side BC in variable viscosity calculation ; mask is applied
1688      anyway later on, before computing advection/coriolis terms.
1689    o modify exp4 to test new obcs support for reading from external files
1690      and for passive tracers
1691    o fix behavior of ptracers_monitor when monitor output is written to a
1692      netcdf-file; still not independent of monitor.F (writes in the same
1693      file).
1694    o change default value of tRef (put a uniform, meaningful value for ocean
1695      & atmos) and initialize sRef (was missing, as Martin mentioned).
1696    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1697      to be proportional to enstrophy dissipation length.  Thus,
1698       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1699      This is now consistent with Smagorinsky and with the manual.
1700    
1701    checkpoint57u_post
1702    o OBCS and PTRACERS: add open boundary support for passive tracers
1703      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1704        OB-values from file; this is not different from the way theta and salinity
1705        are treated
1706      - however, Orlanski-radiation conditions are not supported, and the model
1707        will stop if you use pTracers and Orlanski at the same time.
1708      - beefed up the rountine obcs_external_fields_load: now only those open
1709        boundary values are overwritten with values from files for which there
1710        are really files, otherwise the OB-fields remain untouched. This makes
1711        it possible to use different OBs at different ends of the domain (as
1712        with EXF)
1713    o reduce number of exch calls in shap_filt (s2).
1714    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1715      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1716    
1717    checkpoint57t_post
1718    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1719    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1720      same truncation, independent of the face number: affects affects several
1721      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1722    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1723      note that biharmonic viscosity + no-slip was not tested in any experiment.
1724    o fix bug in non-linear free-surf side-drag ; generate new output for
1725      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1726    o make mnc honor the writeBinaryPrec flag for most kinds of output
1727    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1728    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1729      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1730    o add brackets in multi-terms sum to get same truncation, independent of
1731      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1732      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1733    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1734      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1735      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1736      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1737      Suggested values of viscosity parameters found in mom_calc_visc.
1738      Many new viscosity diagnostics available.
1739    
1740    checkpoint57s_post
1741    o Add clearing-house for viscosity calculations, mom_calc_visc and
1742      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1743      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1744      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1745      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1746      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1747      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1748      ViscAhStrain and viscAhTension are now retired.
1749    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1750    o In response to JMC's bug report, genmake2 now ignores any soft-links
1751      that it finds in the *current* directory when searching for files.
1752      Soft-links found in any other source directories will still work as
1753      they did before.
1754    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1755      a C routine to unlimit the stack size
1756    o mnc-ify pkg/aim snapshot vars
1757    o mnc-ify pkg/land as requested by Daniel
1758    o various changes to mnc including:
1759      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1760      - output can now be grouped so that all files within a group
1761          change the ITER portion of their names in lock-step together
1762      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1763          and works with both EXCH1 and EXCH2 (but needs more testing)
1764      - writing works for all verification test cases w/ g77 on Linux
1765    
1766    checkpoint57r_post
1767    o make MNC variable initialization happen earlier
1768    o add diagnostics for (almost) each term of the momentum Eq.
1769    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1770    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1771    o remove MINIMAL_TAVE_OUTPUT option ;
1772      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1773    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1774      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1775    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1776    o add time-dependent SST, SSS control
1777    o cost terms in ecco/ modularized (new cost_generic.F)
1778    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1779    o new infrastructure for seaice model vs. obs misfits in seaice/
1780      * driver from the_main_loop.F is seaice_cost_driver.F
1781      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1782      * gradient check in Exp. 6a of natl_box_adjoint/
1783    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1784      (see README file)
1785    
1786    checkpoint57q_post
1787    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1788    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1789      - bug was reported by Jean-Michel and Ian Fenty
1790    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1791      update exp. cpl_aim+ocn output.
1792    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1793      Needed for high-res. runs with large global files
1794      to be able to limit tapelev size
1795    o Changed some tests for adjoint:
1796      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1797      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1798      * global_ocean.90x40x15/ back to default 3-level checkpointing
1799    o Modifications to enable scripted COMMON to MODULE conversion
1800      * verification/OpenAD/code/ has necessary scripts and description;
1801      * converts, compiles and runs successfully;
1802    
1803    checkpoint57p_post
1804    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1805    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1806      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1807    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1808    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1809      (was already the case for dissipation with mom_vecinv,
1810       and also the case for grad.PhiHyd when staggered-timeStep)
1811      This will allow to put dissipation out-off the AB time-stepping.
1812     Unfortunately, affects truncation error. Update output of exp. that "fails"
1813      (cg2d matching number) and leave the others for later: front_relax(10),
1814      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1815      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1816    
1817    checkpoint57o_post
1818    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1819      (2) its ready to be documented during the 20050801 DocFest
1820    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1821      for ideal_2D_oce and lab_sea on linux_ia32_g77
1822    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1823      in global1x1_tot/code_seaice_adj to access indices 32, 33
1824      (worth another tag)
1825    
1826    checkpoint57n_post
1827    o adding precip control xx_precip 32
1828    o adding swflux control xx_swflux 33
1829    o Replacing 10 forcing penalty cost routines by 1 generic.
1830    o Implementing partitioning in time-mean and variable adjustment
1831      for atmos. state.
1832    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1833    o in natl_box_adjoint:
1834      * updated exp 1 to 10
1835        (but does not have time-mean vs. variable split results yet)
1836    o updated global1x1/*_seaice_adj/
1837      to incorporate latest changes
1838    o enable useSingleCpuIO for mdsio vector routines
1839      (applies in particular to tapelev I/O)
1840    o removed inefficient K-loop in all active_file*control*.F
1841    
1842    checkpoint57m_post
1843    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1844      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1845    o pkg/exch2: filling of face-corner halo regions is optional
1846      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1847    
1848    checkpoint57l_post
1849     tag before updating tutorials (pre-release-2)
1850    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1851       for output and interpolation of input fields onto model grid)
1852    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1853       Affects results of exp. rotating_tank ; update output.txt.
1854    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1855          and taking the square quantity and/or using a fraction-weight field.
1856    o fix aim_diagnostics_init.F mate numbers.
1857    o add mnc output capability to diagnostics/diagstat and update
1858      our cvsignore files for the ACSII output generated
1859    
1860    checkpoint57k_post
1861    o lab_sea now uses diagnostics package and provides a suite of
1862      new EXF diagnostics output.
1863    
1864    checkpoint57j_post
1865    o exf
1866      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1867        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1868        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1869      * extended diagnostics output
1870        - now includes all EXF variables
1871        - hs, hl moved to common block
1872        - separate S/R for diagnostics, called after ctrl vector is added
1873        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1874        - EXFqnet contains true Qnet (i.e. includes qsw)
1875      * updated verif. lab_sea, global_with_exf
1876      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1877        to ensure that diagnostics sees a true EXFqnet
1878    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1879    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1880      several times with different frequencies.
1881    o mnc-ify the thsice package as requested by Daniel Enderton
1882      - the monitor--MNC output needs work
1883      - many attributes need to be added (most are currently blank)
1884    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1885      - many attributes need to be added (most are currently blank)
1886    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1887    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1888    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1889      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1890         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1891    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1892     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1893    
1894    checkpoint57i_post
1895    o Diagnostics package was changed: diagnostic allocation is now deactivated
1896      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1897    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1898      add 1rst Order upwind vertical Shear.
1899    o add a quick fix for A/B checkpointing in OFFLINE mode
1900    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1901      end-run around the C/Fortran linking horror in eesup/src/timers.F
1902    o added pkg/runclock: allows user to terminate run based on wall clock
1903    o added non-hydrostatic scaling parameter: nh_am2
1904    o pkg/my82: futile attempt to make results compiler-independent by adding
1905      some "_d 0", etc. no effect.
1906    o for mnc output, fill the 'T' coordinate var with myTime and create a
1907      separate 'iter' variable for iteration count
1908    o pkg/diagnostics:
1909      add new capability: output of Global/Regional & per-level statistics ;
1910      tested against monitor output (including land & thSIce) on various exp.
1911    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1912    
1913    checkpoint57h_done
1914      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1915      data.diagnostics, data.gchem, data.ptracers) is done.
1916    
1917    o pkg/diagnostics: prepare for Global/Regional statistics.
1918      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1919    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1920      and rename it: DIFFERENT_MULTIPLE
1921    
1922    checkpoint57h_post
1923    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1924    o pkg/diagnostics: change output frequency, now in seconds (instead
1925      of Nb of iterations). This requires to change data.diagnostics.
1926    checkpoint57h_pre
1927    
1928    o in mnc, let the user create the output dir if both mnc_outdir_date
1929      and mnc_outdir_num are false
1930    o add fflags() to pkg/diagnostics which allows one to specify, on a
1931      per-file basis, the file precision [default behavior is unchanged]
1932    o added diagnostics to pkg/kpp, including computation of mixed layer
1933      depth based on a temperature/density criterion
1934    o updated verification/natl_box to test the new pkg/kpp diagnostics
1935    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1936    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1937    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1938      not mnc -- this mistake was found by JMC and is now corrected
1939    
1940    checkpoint57g_post
1941    o add Adams-Bashforth 3rd Order time stepping:
1942      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1943      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1944    checkpoint57g_pre
1945    
1946    o make lambda[Theta,Salt]ClimRelax spatially varying
1947      (default remains spatially uniform constant based on tau)
1948    o added new control variables
1949      * init. uVel, vVel, etanN
1950      * lambda[Theta,Salt]ClimRelax
1951    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1952      (suggested by G. Forget)
1953    
1954    checkpoint57f_post
1955    o add parameter "baseTime" = model base time = time at iteration zero
1956      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1957      account for baseTime shift
1958    o move Coriolis arrays from PARAMS.h to GRID.h
1959    checkpoint57f_pre
1960    
1961    o mnc-ifying the seaice package
1962    o introduced an alternative length scale calculation for use in the limiting
1963      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1964    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1965    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1966      as well as grad(vort3).  Made it compatible with both approximate form
1967      for the cubed sphere and full form of these gradients.  Added flag
1968      useFullLeith to select between approximate and full form.  
1969    o add "d0" in getcon.F to reduce differences between compilers/platforms
1970      update output.txt of exp. fizhi-gridalt-hs
1971    o change port_rand funtion to allow to set the seed.
1972    o fix obscure MNC bug involving conversion between reals and integers
1973      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1974        new version is now more standards-compliant
1975    o adjoint-related modifications
1976      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1977      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1978      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1979    
1980    checkpoint57e_post
1981    o Adding eddy stress controls a la Ferreira et al.
1982    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1983    
1984    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1985      update output.txt of exp. fizhi-gridalt-hs
1986    o add more "Z" dimensions and associated coordinate vars to MNC
1987    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1988    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1989      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1990      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1991      months and years.  Requires pkg/cal.
1992    o diagnostics: add pickup functionality
1993      - off by default for backwards compatibility
1994      - current version only uses MDSIO -- MNC will be added
1995    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1996    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1997    
1998    checkpoint57d_post
1999    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2000    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2001      output from the diagnostics package
2002    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2003    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2004      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2005    o add coordinate variables to the MNC output from the diagnostics package
2006    o change MNC-flags default value: true when useMNC=TRUE
2007    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2008      the ability (off by default) to read the grid information using MNC
2009    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2010    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2011    o do snap-shot diagnostics at the middle of the time-interval (instead of
2012      at the end).
2013    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2014      new test for AIM with thSIce + slab-ocean
2015    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2016    o move state variable diagnostics to the beginning of the time step ;
2017      (note: still needs some work specially for snap-shot diagnostics)
2018      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2019    
2020    checkpoint57c_post
2021    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2022    o generate new output.txt files on faulks with g77 & the new -ieee option
2023    checkpoint57c_pre
2024    
2025    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2026      update output.txt of exp. global_ocean.90x40x15
2027    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2028      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2029    o add saltFlux(+File) forcing capability with periodicExternalForcing
2030    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2031    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2032    o improvements for the MNC output from DIAGNOSTICS:
2033      - correct handling of the unlimitied dimension
2034      - all dims now have associated coordinate variables
2035      - variables located at U, V, and Corner ("Z") points are now written
2036        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2037        *all* data points are output
2038    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2039    o added pkg/seaice/seaice_monitor.F
2040    o mdsio_readfield.F can now read files visible only to master MPI process.
2041    o pkg/seaice: some test code for ice-modified ocean stress
2042    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2043      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2044      spurious negative numbers for precipitation and humidity.  Will cause
2045      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2046    o pkg/ctrl/
2047      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2048        May be enabled via doPackDiag
2049      *  introduce z-scaling of
2050         + gradient (doZscalePack) and
2051         + control (doZscaleUnpack)
2052    o pkg/mdsio/
2053      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2054      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2055    
2056    checkpoint57b_post
2057    o simplify options in diagnostics_fill arguments (remove weird combinations)
2058    o fix MNC coordinate variables so that they now contain per-face index
2059      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2060      general, EXCH2 grids are only aligned to a "local" coordinate system
2061    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2062    o Implement instantaneous output within pkg diagnostics:
2063      setting a negative frequency in data.diagnostics produces
2064     "snap-shot" output (as opposed to time-average if freq > 0)
2065    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2066      NOTE: change ptracer diagnostics name: use 2 characters to work with
2067            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2068    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2069      becomes the coordinate variable for the 'T' dimension
2070    o add CF-style coordinate variables to MNC
2071      - just a first cut:  numbers are meaningless on the cubesphere and
2072        missing along the T axis but otherwise it works!
2073    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2074    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2075    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2076      this is based directly on what the model compute, so that the content of
2077      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2078    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2079    o clean up build options files for SunOS, in particular
2080      - remove -traditional from xmakedepend
2081      - change -xarch=v9 to -xarch=native for f77
2082      - restore use of make (not gmake)
2083      - add CC=gcc if using g77
2084    o changes per discussion of AM, JMC, & EH3 today:
2085      - move redundant "grid" variables out of "state" -- in preparation of
2086        creating proper CF-style coordinate variables and in recognition
2087        that any/all grid variables can be easily copied (eg. w/NCO) from
2088        the grid files into any of the other NetCDF files
2089      - *always* output grid variables with MDSIO (this will eventually be
2090        changed)
2091      - output MNC grid file if useMNC is true
2092    o every instance of _END_MASTER() has been found and replaced with
2093      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2094      preprocessors
2095    o re-arrange diagnostics pkg initialisation:
2096     - allow each package to extend the available diagnostics list
2097     - add some checking and fix small problems (multi-threaded, ...)
2098     - new S/R diagnostics_fill (replace fill_diagnostics):
2099       look through the short list of active diag. (instead of the long list)
2100       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2101    
2102    checkpoint57a_post
2103    o this set of changes restores TAMC compatibility
2104      tested for global_ocean.90x40x15 adjoint on trough
2105      (what a pain)
2106    
2107    checkpoint57a_pre
2108    o some modifs in tools/build_options for sunos
2109    o call ctrl_pack for ctrl at end for optimcycle=0
2110    
2111    checkpoint57
2112    o add horizontal bi-harmonic viscosity for vertical velocity
2113      - new parameter viscA4W (defaults to viscA4)
2114      - affects only non-hydrostatic code
2115      - to be done: no-slip lateral boundary conditions
2116    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2117    o implement Implicit Vertical advection for pTracers
2118    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2119      (implemented also for implicit vertical diffusion & advection)
2120    o OBCS: extend application of tracer open boundary conditions
2121      to a strip beyond the boundary of width Olx/Oly
2122    o add call monitor to TAF set of required calls (flow directives)
2123      and include in natl_box_adjoint
2124    o untangle a few ifdefs related to cost, ctrl, autodiff
2125      untangel a few ALLOW_ECCO_OPTIMIZATION
2126    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2127      (theta2, salt2 in ecco_cost_weights)
2128    
2129    checkpoint56c_post
2130    o OBCS as control variables
2131      - update ctrl_ad_diff.list, obcs_ad_diff.list
2132      - remove balance of obcs controls from default
2133      - fix index bug nobcs in ctrl_init
2134      - fix dummy fields filen in ctrl_pack
2135      - add dummy weights for obcs
2136    o lsopt: comment out fort.94 output
2137    o optim:
2138      - remove unnecessary header files
2139      - adjusted namelists
2140      - add xerbla.F to Makefile
2141    o exf:
2142      - multiple modifications of exf_check_range
2143      - unit change in exf_init_runoff from [m/year] to [m/s]
2144    o mdsio:
2145      - i/o-vector change debugLevel from debLevA to debLevB
2146    
2147    checkpoint56b_post
2148    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2149      is called from DO_THE_MODEL_IO
2150      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2151      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2152      - clean up PTRACERS_WRITE_TIMEAVE a little
2153    o add another verification experiment that tests both the cfc-pkg and
2154      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2155      reactive tendencies treated inline with regular timestepping
2156    o testreport previously did a lousy job of comparing small numbers, so
2157      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2158      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2159      testreport.
2160    o ptracers_monitor: bug fix for MPI
2161    
2162    checkpoint56a_post
2163    o GCHEM: finish reorganizating the package
2164      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2165        (introduces another 3D-array for each passive tracer, but only if
2166        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2167        gchemTendency is not needed because the timestep is done separately)
2168      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2169      - GCHEM is now---more or less cleanly---separate from PTRACERS
2170      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2171        so clear to me how that should be done in a general way.
2172    o CFC: improve formatting of output in CFC_ATMOS
2173    o PTRACERS:
2174      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2175        that ALL experiments with ptracers enable can be checked. This makes
2176        GCHEM_MONITOR obsolete.
2177      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2178        monitorFreq
2179      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2180    o add PTRACERS (PTR0[1-5]) to testreport output
2181    o exf_check_range:
2182      * default changed to .TRUE.
2183      * will check values for niter0 if debLevA, every timestep if debLevB
2184      * STOP in exf_check_range if 'out of range'
2185      * range chosen generous to allow for potential extema
2186      TBD: a version with stricter range
2187           permitted range would be runtime parameters
2188  o GMredi:  o GMredi:
2189    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2190    - 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 2193  o GCHEM:
2193    - 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
2194      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2195    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2196      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2197        this flag is now only visible within GCHEM-pkg routines.
2198      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2199        be replaced by a 3D array that is computed before thermodynamics; for
2200        this, the tracer ID iTracer had to be included into the parameter list
2201        of ptracers_forcing
2202      - set up forward_step to call gchem_forcing, that will replace
2203        gchem_forcing_int in ptracers_forcing
2204      - cleaning up
2205  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
2206    
2207  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2420  o add two new packages
2420    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2421    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2422      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2423      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2424  o add offline package  o add offline package
2425  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2426    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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