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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1074 by mlosch, Tue Mar 3 10:01:40 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/mnc: fix the coordinate variables for multi-tile curvi-linear grids
8      that are not cubed-sphere grids
9    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
10    o pkg/ctrl:
11      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
12    o non-hydrostatic (calc_gw.F):
13      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
14      update output of exp. global_ocean.cs32x15.viscA4
15    o remove backward compatibility for thetaMin,phiMin
16      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
17    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
18      interpolated wind field not only for curvilineargrid=.true., but also
19      for a rotated grid (rotateGrid=.true.)
20    o pkg/exf: add capability to bypass interpolation for runoff
21      by setting yet another CPP-flag
22    o eesupp/src, B-grid exchange:
23      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
24    o autodiff
25      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
26      allows to switch to single-prec common blocks;
27      corresponding switch occurs in tamc.h, integer isbyte
28      TAF store directivs "byte" and "kind" seem equivalent;
29      Most tamc.h have been updated correspondingly.
30    
31    checkpoint61i
32    o autodiff:
33      fix autodiff_sore/_restore indices for obcs
34      (spotted by I. Hoteit, M. Mazloff)
35    o pkg/autodiff, pkg/ctrl:
36      Add flag to reduce all tapelev I/O to single-prec.
37      In data.ctrl set
38        doSinglePrecTapelev = .TRUE.
39    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
40      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
41    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
42      real fresh water flux (not yet)
43    o pkg/mdsio & rw:
44     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
45     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
46    o pkg/flt:
47     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
48       init_fixed & ini_varia.
49     - clean-up & simplify linear interpolation S/R:
50       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
51     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
52     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
53     - add vert. coordinate & horiz. indices to output files.
54     - change vertical position in initial condition, from index to depth [m].
55     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
56       (easier to get to a curvilinear grid) ; delX,delY no longer used.
57    o pkg/ggl90: a few modifications:
58     - fix bottom boundary condition, and interpolation of KappaE
59       near top and bottom
60     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
61     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
62     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
63    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
64      (maintain temporary backward compatibility, until next checkpoint)
65    
66    checkpoint61h
67    o pkg/diagnostics with "periodic averaging diagnostics":
68      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
69    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
70    o pkg/obcs: fix loop ranges for balancing code
71    o pkg/flt:
72     - improve criteria for finding which tile owns a float.
73     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
74    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
75      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
76      with ocean biogeo)
77    o pkg/flt:
78     - do some cleaning and fix the restart ;
79     - add output.txt in flt_example/results to get this pkg tested.
80    o genmake2: add an EXTENDED_SRC option and flag.
81       for now, cannot be turned on on command line (only through genmake_local)
82    o pkg/mdsio: read/write vector:
83     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
84     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
85       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
86     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
87      (drop to 4 digits matching for grad). But this test does not look very
88      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
89    
90    checkpoint61g
91    o pkg/flt:
92      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
93       + make OPTIONS file more standard.
94      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
95      - fix _BYTESWAPIO CPP-Flag
96      - standard reading of file-parameter "data.flt"
97      - fix argument list of S/R FLT_RESTART
98      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
99    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
100    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
101      a still unfixed compiler/optimization bug
102    
103    checkpoint61f
104    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
105      update results of global_ocean.cs32x15.icedyn test.
106    o move getcon.F from model/src to pkg/fizhi.
107    o pkg/exf: add parameter for extrapolation of temp up to the surface
108       and option to prevent negative evap (in bulk_largeyeager04 only).
109    o Prather Advection scheme: fix tracer conservation for divergent flow
110      (e.g., when using NonLin Free-Surface).
111    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
112    o gmredi (Visbeck-variable-K):
113     - add more parameters to Visbeck-variable-K.
114     - use a 5 points average for dSigmaR in Visbeck-K calculation
115       (more "homogenous": same stencil and same weights as in dSigmaH)
116     - update output of ideal_2D_oce experiment.
117    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
118      (#undef REAL4_IS_SLOW)
119     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
120       coordinate variable
121     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
122       (surface forcing fields), removes some of the functionality
123     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
124     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
125       probably not all: copy _RS surface flux fields to RL field before
126       calling DIAGNOSTICS_FILL
127     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
128       real*4 (CALL EXCH_*_RS) versions.
129     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
130       (generate new output).
131    
132    checkpoint61e
133    o gmredi (Visbeck-variable-K):
134      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
135      - change computation of Visbeck-K where Slope > Smax :        
136        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
137        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
138    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
139      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
140    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
141    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
142      does not become too large (to avoid precision problems in implicit-diffusion
143      solver); update ideal_2D_oce output.
144    o pkg ggl90:
145      - in ggl90_cal.F: compute only one set of visc/diff, used to
146        step forward TKE/T/S/momentum
147      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
148        have Prandlt =1)
149    o gmredi (fm07):
150      - add lower limit on Transition layer thickness + lower limit on 1/lambda
151      - allow to set few more params from data.gmredi
152    o pkg ggl90:
153          - add missing sqrt(2) factor in computation of mixing length
154            scale in ggl90_calc.F
155            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
156    
157    checkpoint61d
158    o adjoint modifs
159      - adapt to new field rhoInSitu
160      - allow to revert from StoreDynVars2D, StoreDynVars3D
161        to individual fields
162        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
163    o store 3-D (in-situ) density in commom block (DYNVARS.h)
164     - save 1 rho computation.
165     - no longer modify T & S inland when using down_slope pkg.
166    o gad_som : allow to switch to SOM advection for T & S without corresponding
167      pickup files (using new S/R: MDS_CHECK4FILE).
168    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
169      (for useSingleCpuIO to work in multi-threaded)
170    o pkg/shelfice:
171     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
172       with SHELFICEtopoFile in data.shelfice
173     - move code for reading ice shelf topography and modifying hFacC into separate
174       subroutines of the shelfice package
175     - separate initialisation of "fixed" and "variable" variables
176     - kTopC is not (yet) replaced by kSurfC, although this is possible
177    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
178    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
179      and rename:
180      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
181      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
182    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
183    
184    checkpoint61c
185    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
186      to add mass source/sink of fluid in the interior (3-D generalisation
187      of oceanic real-fresh water flux).
188    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
189    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
190    o new pkg: down_slope
191      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
192      - presently, modify T & S inland (dwnslp_calc_rho.F).
193        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
194      - implementation for ocean in P-coords not tested.
195      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
196    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
197      (to facilitate conversion of oceanic pkg to p-coordinate).
198    o change FIND_RHO to FIND_RHO_2D :
199      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
200    o new pkg: cheapaml
201    
202    checkpoint61b
203    o exch2:
204      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
205      - no longer depend on the order sequence (N,S,E,W).
206      - 3rd exchange no longer needed (tested with 24 tiles).
207      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
208      - exch_UV_A-grid readily available (but not yet tested).
209      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
210      (both are no longer needed) in exch_uv: no effect in forward run; but
211       get truncation error differences with adjoint exch.
212    o exch2:
213     - change index-bounds storage (moved from target to local tile,
214       more intuitive this way) ; rename/remove some variables.
215     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
216    
217    checkpoint61a
218    o exch2/matlab-topology-generator:
219      fix bug in index bounds for N-S internal exchange (hard to tell if this
220      had any effect on the solution).
221    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
222      is exceeded
223    o testreport: modify syntax of awk, so that it works also with
224      awk, and not only with nawk and gawk
225    
226    checkpoint61
227    o autodiff
228      Change default for TAF usage by removing argument '-nonew_arg'
229      This changes TAF subroutine argument list (ordering of active var.)
230      Omission of this flag leads to incompatibility w.r.t. TAMC
231      To restore TAMC-compatibility, need following modifs:
232      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
233      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
234      Tested TAF version is 1.9.22
235      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
236    
237    checkpoint60
238    --->>> This is the last checkpoint for which generating the adjoint
239    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
240    --->>> by default.
241    --->>> Future checkpoints will ommit this flag by default.
242    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
243    o pkg/grdchk: Add gradient check to etan0 perturbations.
244    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
245    o pkg/autodiff: more flexibility in zeroadj.
246      model/src: modifying do_oceanic_phys.F accordingly.
247    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
248    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
249      special setup of gmredi for which the adjoint is stable
250      enough for parameter optimization.
251    o bridging the gap between eddy stress and GM.
252      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
253          along with a change in CPP option (now ALLOW_EDDYPSI).
254      -> when using GM w/ GM_AdvForm:
255          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
256          is applied either in the tracer Eq. or in momentum Eq.
257          depending on data.gmredi (intro. GM_InMomAsStress).
258      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
259      The key modifications are in model/src/taueddy_external_forcing.F
260      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
261    
262    checkpoint59r
263    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
264      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
265      fix option to read coriolis(@ cell-corner) from files with CS-grid.
266    o pkg/mnc: add some attributes to standard 1D-coordinate variables
267    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
268      mass points, when using mnc for output
269      - add runtime parameter (missing_value, missing_value_int) to override
270        default (which is the value of getcon('UNDEF'))
271    o pkg/mnc: prepare mnc for the actual use of missing values with the
272      diagnostics package: small fix in mnc_cw_readwrite.template and more
273      initialisation of never used fields
274      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
275      versions
276    o pkg/thsice/thsice_ini_vars.F added default initial values so that
277      thermodynamics sea ice solver does not blow up when some initial fields
278      are missing.
279    o move from external_forcing_surf.F to ini_forcing.F
280      the p-coord. hack consisting in using pLoad to set phi0surf ;
281      update output of tutorial_global_oce_in_p (affected @ truncation level).
282    o Freshen up a bit hs94.1x64x5, notably:
283      remove rotationPeriod and tRef=5*0. (adjoint only), and add
284      exactConserv=.TRUE.
285    o pkg/generic_advdiff:
286      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
287      applies to files where Temperature & Salinity 2nd Order moments are used.
288    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
289      this uses a dynamically allocated internal state data structure
290      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
291      and requires a fortran 90 compiler
292    
293    checkpoint59q
294    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
295       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
296    o Refresh tutorial_global_oce_biogeo, notably:
297      - change bathymetry (put back seamounts in ACC, use hFacs)
298      - change EOS (POLY3 --> JMD95Z)
299      - use Bryan-Lewis vertical diffusivity
300      - use multidimensional advection
301      - remove old virtual virtual in dic pkg, now done through ptracer pkg
302      - change a couple of parameters in dic pkg
303    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
304    o pkg/obcs: change default to OBCSfixTopo = .true.,
305      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
306      - replace "debugMode" with "debugLevel .GE. debLevB"
307    o implementation of TAF directives for gchem,cfc,dic
308    o remove "exp5" (replaced by tutorial_deep_convection).
309    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
310      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
311      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
312      --> changes results in exp4, seaice_obcs
313    o tutorial_deep_convection :
314      update the set-up and increase resolution and domain size ; start
315      from pseudo initial conditions = output at t=120mn in order to see
316      something happening when running testreport.
317    o pkg/seaice: add os7mp as an advection scheme
318                  add check for advection schemes
319                  add a flag for restoring T and S underneath sea ice
320    o pkg/my82: add netcdf-support and diagnostics
321    o thsice pkg:
322      - Now hsMax limits snow height by turning it into ice following
323        flooding scheme (and now conserving energy)
324      - Slight rewriting of the formula in thsice_calc_thick.F
325      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
326      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
327    
328    checkpoint59p
329    o gchem / dic / cfc :
330      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
331      - add new parameter files: "data.dic" & "data.cfc" ;
332      - various re-arrangement in initialisation & header file ;
333      - fix tutorial_global_oce_biogeo for multi-threaded test.
334    o pkg/dic: test for "pickup_dic" file when restarting ;
335      if no pickup-file, can restart with a re-initialised pH (same as it did
336      before) providing pickupStrictlyMatch is set to False.
337    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
338      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
339    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
340      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
341    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
342     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
343       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
344    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
345       scheme to use for vorticty-term ;
346     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
347       (with default selectVortScheme, return to original discretisation)
348     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
349    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
350    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
351      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
352      also fix diagnostics VISCAHW & VISCA4W.
353    
354    checkpoint59o
355    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
356    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
357      move a few statemens out the main loop into separate loops
358    o pkg/shelfice:
359      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
360        (kg/m^2/s), does not break tests, because in verification/isomip,
361        rhoConstFresh=rhoConst (by accident)
362      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
363      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
364        new file model/src/seawater.F, so that they are available for all pkgs.
365      - convert potential temperature into in-situ temperature. This changes the
366        isomip tests => update tests
367    o add a flag writePickupAtEnd (default=true) to be able to suppress
368      writing a pickup at the last timestep
369    o tools/mpack-1.6 :
370      - disable automake (not working) and autoconf (not needed).
371      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
372        also cleaner with much less compilation warnings.
373    o pkg/profiles:
374      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
375      (for "less than 32 characters name" compiler requirement)
376    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
377      conditions that have a different sampling frequency than S/T/U/V obcs
378    o pkg/diagnostics (stats-diags):
379      - fix global Min/Max in case 1 processor get only empty tiles
380    o genmake2: replace (4 times)
381         make genmake_tc_1.o >> genmake_warnings 2>&1
382      with
383         COMM="$CC $CFLAGS -c genmake_tc_1.c"
384         echo $COMM >> genmake_warnings
385         $COMM >> genmake_warnings 2>&1
386      to make genmake2 always see the value of CC as specified in the optfile.
387    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
388      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
389      - modify verification advect_cs test to test SOM-advection on CS-grid.
390    o pkg/ctrl:
391      - Rewrite of ctrl_map_ini_ecco.F,
392        introducing a generic routine (ctrl_map_ini_gen.F).
393      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
394    
395    checkpoint59n
396    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
397      number in dedicate array "hdiag":
398      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
399        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
400      - many small changes (integer format) for large number of diagnostics
401      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
402        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
403    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
404      usingSphericalGrid, this allows to define the rotated grid coordinates
405      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
406      geographical coordinates according to the inverse of the rotation defined
407      by the Euler angles, so that Coriolis parameter and online-interpolation by
408      exf works with the geographical coordinates on XC/YC/XG/YG.
409      Naturally, this feature does not work with all packages, so some
410      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
411      profiles), because there the coordinates are assumed to be regular
412      spherical grid coordinates.
413    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
414      - introduce isopycnal diffusion coefficient control.
415    o tools/adjoint_options:
416      - additional control vector components.
417    o pkg/mnc: have mnc create marginally meaning full coordinate variables
418      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
419    o pkg/mypackage:
420      - add example of read/write pickup for state-var ;
421      - add entry points to the main code for state-vars diags & write-pickup.
422    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
423      transitions for useExfYearlyFields
424      - add new subroutine that determines the file to read from for
425        use*YearlyFields = .TRUE. and .FALSE.
426      - add a verification experiment to global_with_exf that tests
427        useExfYearlyFields with USE_EXF_INTERPOLATION defined
428    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
429      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
430      subroutines (which could be generated from a template, because they are
431      almost identical), for now they are included in obcs_prescribe_read.F for
432      simplicity
433    o pkg/exf:
434      - add a little more diagnostic to exf_interp_read (in analogy to
435        mds_read_field, can be turned off with debugLevel < debugLevA=1)
436      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
437        ugly but fast by unrolling short inner loops, inserting a unroll=8
438        directive in routine lagran, and splitting a loop and making do while the
439        outermost loop (the latter requires the intoduction of index arrays)
440    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
441    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
442      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
443    o verification/seaice_obcs: updated for restart test and latest options
444    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
445      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
446      for now this is only available for the C-grid code and also within
447      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
448    
449    checkpoint59m
450    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
451      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
452    o gad_som : fix flux output (& diagnostics) to have same units as other  
453      advection scheme fluxes (was previously multiplied by deltaT).  
454    o added verification/seaice_obcs both to test seaice open boundaries
455      and to provide an example matlab scrpt for generating them
456    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
457    o pkg/salt_plume: clean up salt_plume_frac.F to
458      remove redundancy in PlumeMethod 1 and 4
459    o pkg/kpp: added saltplume diagnostics
460    o pkg/obcs and pkg/seaice:
461      - do not set uice and vice to zero when OB*icefile are unspecified
462      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
463      - moved seaice tracer obcs after call to seaice_growth
464    o pkg/salt_plume: added various options for salt plume depth
465      criterion and for vertical distribution of the salt
466    
467    checkpoint59l
468    o pkg/ptracers: new version of ptracers pickup:
469      read meta file and write only fields which are needed to restart.
470      ( same logic as main pickup file ; also using pickupStrictlyMatch )
471    o pkg/seaice:
472      - add timescale for melting due to warm mixed layer as a means of
473        setting SEAICE_availHeatFrac more conveniently
474      - add a CPP-flag/runtime parameter check for flooding algorithm
475      - reformulated availHeat in seaice_growth.F to be independent of AREA
476    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
477      unit changes
478    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
479    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
480      SX vector computer.
481    o pkg/seaice:
482      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
483        seaice forcing fields can now be read only through pkg/exf
484      - removed some unused halos
485    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
486    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
487      or U/VICE from U/VWIND before computing U/VSTRESS
488    
489    checkpoint59k
490    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
491      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
492    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
493      all experiments pass when compile with un-initialised var. checking option.
494    o added pkg/salt_plume
495    o script to test restart (for now, in MITgcm_contrib/jmc_script)
496    o pkg/seaice: new read/write pickup version.
497      read meta file and write only fields which are needed to restart.
498      ( same logic as main pickup file ; also using pickupStrictlyMatch )
499    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
500    o lab_sea.hb87: modify the domain & update output.hb87.txt :
501      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
502      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
503      process. Fixed here by closing the domain at the Northern boundary.
504    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
505    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
506      a set of consecutive levels in/from a 3-D array.
507    o pkg/ptracers:
508      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
509      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
510    
511    checkpoint59j
512    o in pkgs: dic, obcs, offline, rbcs:
513      standard way to compute coeff. for time interpolation between 2 time reccords
514      which retains full precision (& make results less dependent on compiler).
515      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
516    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
517      packages instead of reading ice cover and wind speed separately
518    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
519     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
520      to allow to compile customized code before the update)
521    o cleaning-up:
522      - fix CPP instruction syntax in pkg/obcs
523      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
524        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
525      - fix some threads issue in IO parts.
526    o pkg/dic:
527      - add tons of "_d 0" (--> much better testreports !)
528       and then update outputs of tutorial_global_oce_biogeo
529    o pkg/mom_fluxform:
530      add a special version of momentum advection intended to conserve momentum
531      next to a bathymetry step or a coastline edge. (default = off = #undef)
532    o new read/write pickup version:
533      - for now, only implemented for main (mdsio) pickup file.
534      - write out only what is needed to restart; merge pickup_nh , pickup_ph
535        and main pickup together.
536      - read meta file; read only what is needed to restart; stop if a field
537        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
538        if it make sense (even if the restart is not perfect).
539      - if no meta file, assume that pickup to read corresponds exactly to
540        a pickup that would currently be written.
541      - read pickup written in the old format (until checkpoint59i) if it
542        recognizes an old meta file (no field-list).
543      - add a meta file in exp. which starts from a pickup: 2 cases:
544        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
545         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
546        b) a meta file describing the content of the associated pickup file
547         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
548    o pkg/mdsio & pkg/rw:
549      - new routine to read a meta file ; new set of routine to read
550        Multiple-fields file (with meta file).
551    o added open boundary conditions capability for seaice
552        HSNOW, HSALT, UICE, and VICE
553    
554    checkpoint59i
555    o adjoint:
556      * fix multiDimAdvection adjoint
557        (partial recomputation problem by TAF for fVerT(:,:,kDown)
558        and comlev1 size definition (maxpass vs. max. number of tracers)
559      * verification/global_ocean.90x45x15 adjoint now tests
560        NLFS and multiDimAdvection using DST3 (=30)
561      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
562    o pkg/kpp: add "_d 0" to real constant (if missing);
563      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
564      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
565    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
566      for internal parameters related to restart process (formerly from PARAMS.h)
567      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
568    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
569      as argument. (only atm2d & obcs write_pickup have not yet been updated)
570    o pkg/monitor:
571      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
572      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
573      - account for deep Atmosphere factor and density factor (anelastic)
574    o added open boundary conditions capability for seaice HEFF and AREA
575    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
576      thermodynamics
577      - requires a little reorganization, which affects the testreport results
578        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
579        so that now the conservative form is tested
580      - add a few comments
581    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
582    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
583    o add new diagnostics to seaice: advective, diffusive fluxes (only for
584      multidim-advection, for scheme 2 they are not filled) and transports,
585      thermodynamic growth rates
586    o change units of EmPmR (inside the code, + within coupling interface)
587      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
588      Affects results @ truncation level (cg2d match) and update output of
589       experiments: lab_sea(6), global_ocean.90x40x15(10),
590      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
591      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
592      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
593      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
594    
595    checkpoint59h
596    o pkg/exf:
597      - improve vectorization by moving if-statement out of loops in
598        exf_mapfields, exf_radiation
599      - exf_bulkformulae.F: introduce 2D fields and vectorize code
600    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
601    o testreport:
602      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
603        monitor & update offline_exf_seaice exp. output.
604      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
605    o pkg/seaice:
606      - bug fix in the evp solver: boundary conditions were affected be
607        masking of zMax/zMin (changes results)
608      - minor bug fix in boundary conditions in seaice_calc_strainrates
609        (changes results for no_slip)
610      - seaice_lsr.F: make interpolation of eta dependent on boundaries
611      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
612      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
613        stress formulation and no-slip boundary conditions
614    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
615      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
616    o pkg/seaice: a first HSALT time stepping equation has been checked in
617    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
618      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
619      without requiring DO-IF statements
620    o pkg/thsice:
621      use continuous power-law function for partition of energy between lateral
622      melting/freezing and thinning/thickening ; old code using step function
623      still available with #undef THSICE_FRACEN_POWERLAW
624      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
625    o testreport: change AD testing : check against results/output_adm.txt
626      using same scripts as for forward test.
627    
628    checkpoint59g
629    o adjoint testing: in preparation for changing testreport:
630      - output format: cost and grad written on separated lines
631      - ad output results in directory "results" (instead of "results_ad")
632    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
633    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
634    o pkg/ecco: allow user defined cost function contributions
635    o testreport:
636      Allow to choose (per experiment) the list of tested output variables
637       and the main variable (used to issue a pass/FAIL ) ;
638      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
639      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
640      Also modify printing of summary:
641       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
642       b) echo the list of tested variables in the individual summary.txt of
643          each experiment.
644    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
645      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
646      (but still depend on the tile decompostion of the domain).
647    o pkg/seaice: change a discretization detail to make the B-grid code
648      "more symmetric". This change is likely to remove all "ridges/leads" that
649      where quasi-aligned with the grid in B-grid solutions. It may also be
650      the solution to the stress coupling issues with the B-grid.
651    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
652      remove .cvsignore from input dir. (since testreport no longer run here).
653    o pkg/thsice:
654     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
655     - fix reshaping of sea-ice just after advection:
656       melt all the ice only if ice-volume is too small.
657     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
658       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
659     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
660    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
661      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
662    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
663      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
664      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
665      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
666      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
667      -> update output.txt
668    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
669     this affects truncation error: -> update output.txt of exp:
670      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
671      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
672    
673    checkpoint59f
674    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
675    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
676      a bounded range (in forward mode)
677    o pkg/ecco, ctrl, autodiff and mom_common:
678     internal parameter controls, completements of implementations
679    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
680    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
681      (not seem any difference in testing results).
682    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
683       at face corners.
684    o pkg/generic_advdiff:
685     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
686      loop range indices for computing vertical advection tendency
687      and do the calculation in the interior only (no overlap) ;
688      for now, only implemented for SOM advection (to save CPU time).
689     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
690    o exch2 adjoint
691      First set of changes:
692      - add exch2 hand-written adjoint templates
693      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
694        This will require cleanup in pkg/autodiff/*.F
695        (changed routines currently kept separate in verif. code/)
696      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
697        that used to hide exch2 or cubed-sphere specific code
698        (commented via 'cph-exch2')
699    o pkg/seaice
700      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
701    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
702       output of global_ocean.cs32x15.thsice .
703    
704    checkpoint59e
705    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
706      for B-grid vector (not yet tested) and C-grid vector (<- only used
707      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
708    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
709      (#ifdef ALLOW_SALT_PLUME)
710    o gather_2d/scatter_2d: removed halo regions
711    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
712      scheme and the corresponding test case (under front_relax dir). For now,
713      only available with Skew-flux form and not yet tested in realistic set-up.
714      adjoint: store directives updated, but gradient checks deteriorated,
715      so maybe GM/Redi adjoint is now broken.
716    o seaice adjoint
717      * add AREA, HEFF, HSNOW as control variable
718        (should not change lab_sea results)
719      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
720    o pkg/seaice:
721      * added computation of saltFlux in seaice_growth;
722        For time being, sea ice salinity is assumed constant
723        contribution of snow flooding to freshening of sea ice is neglected.
724        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
725        defaults to 0.0 in order to maintain backward compatibility.
726        Typical values for SEAICE_salinity are 4 to 10 g/kg.
727      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
728      * added SEAICE_availHeatFrac, which specifies fraction of surface level
729        heat content used to melt or grow ice
730      * commented out cap of HICE: it helps keep ice thinner
731      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
732      * applied OBCS T/S mask to HEFFM sea ice mask
733    
734    checkpoint59d
735    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
736     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
737     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
738    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
739     and change default value of parameter "GM_Small_Number";
740     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
741       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
742       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
743    o pkg/ecco: cost function when applying pkg/smooth to controls
744    o pkg/ctrl: add forcingPrecond run time parameter
745    o pkg/seaice:
746     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
747     - fix bug in metric terms of u-equation in LSR solver (implicit part),
748       changes verification/lab_sea
749     - rearrange implicit part of u-equation in LSR solver to make it easier to
750       read, understand, and debug. This causes changes at the truncation level.
751     - fix (serious) bug in the boundary conditions (sign error in the implicit
752       part) of the LSR solver. Changes all LSR results.
753     - fixed problem with HSNOW initialization to avoid thick snow when AREA
754       is initilized with small values - does not change lab_sea results.
755     - added HsnowFile initialization capability
756    o pkg/smooth: addition to model/src and pkg/ctrl so allow
757     initialization of pkg/smooth and application to control vector
758    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
759    o dependencies: pkg/profiles requires pkg/cal
760    o pkg/profiles:
761     - added option ALLOW_PROFILES_GENERICGRID
762         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
763         that interpolation information (grid points and coefficients) is provided
764         within the netcdf input files.
765         -> sample matlab scripts can be found in MITgcm_contrib/gael
766         that allow you to prepare netcdf input files.
767     - also modified: cleaner include statements, cleaner error print statements,
768       cleaner stops when error, and more tests of the netcdf input files consistency.
769    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
770    o pkg/seaice:
771     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
772       requires a new routine: seaice_diagnostics_fill.F
773     - make sure that seaice does not move if not forced (pressure replacement
774       method, Hibler and Ip, 1995), changes results
775     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
776     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
777       It is turned off by default (=-1.), because it changes the results.
778     - make it possible to read AREA from a file, too.
779    
780    checkpoint59c
781    o add S/R and diagnostics for oceanic mixed-layer depth
782    o move GMRedi call after all vertical mixing schemes (including KPP)
783    o pkg/thsice:
784     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
785      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
786    o pkg/obcs:
787     - bug fix for balance code
788    o pkg/seaice:
789      - allow values of SEAICE_elasticParm > 1
790      - add new parameter SEAICE_evpTauRelax as an alternative
791        to SEAICE_elasticParm
792      - make lsr boundary conditions free slip (by default), changes result
793      - add code for no slip boundary conditions for lsr
794      - set minimum of zeta to zero (and not 4e8) (changes results)
795      - add a cap on AREA after advecting AREA if seaice_growth is not called
796    o change calculation of Visbeck K:
797      - no longer depend on tapering scheme; instead, compute slope (limited
798        by GM_maxSlope). this is equivalent to what was comuted before with
799        clipping or linear tappering.
800      - fix vertical averaging (wrong by 1/2 level)
801      - leave the old version (but will not be maintained) within
802        #ifdef OLD_VISBECK_CALC / #endif
803      - update output of exp. ideal_2D_oce
804    o change error catch in calc_r_star to improve vectorization
805    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
806      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
807    o adjoint:
808      Re-organized adjoint checkpointing according to Matt Mazloff
809      (but with modifs/completions/cleanups)
810      Storing is now bundled into large arrays to optimized I/O
811      (and second step in cleanup of the_main_loop)
812    
813    checkpoint59b
814    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
815      - export/import (between ocean & coupler) fields needed for ocean DIC.
816    o pkg/seaice:
817      - get rid of three more exchanges seaice_calc_viscosities (required
818        different loop boundaries in seaice_lsr and seaice_ocean_stress)
819      - bug fix in seaice_ocean_stress (update of lab_sea required)
820      - reduce loop boundaries to necessary minimum also in seaice_evp
821      - go back to the old way of computing deltaC/Z as the adjoint likes that
822        better
823    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
824      passive tracer to an Age Tracer) + update output.txt
825    o pkg/exf:
826      - implement A-grid / C-grid selection for wind-stress input files.
827      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
828      for now, in exf_bulk_largeyeager04.F only :
829      - change implementation for case where windspeed + 2. components wind-stress
830        are read-in. AND use rhoConstFresh to convert evap.
831    o pkg/seaice:
832      - use correct EXCH_UV for wind-forcing (on A-grid).
833      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
834        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
835    o pkg/exf:
836      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
837      EXF_INTERPOLATION:
838      - merge global_with_exf/code version of exf_interp_read.F
839        to the main code ;
840      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
841        reading the file ; Important: This options needs to be defined to recover
842        previous code.
843        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
844      - no longer loose real*8 precision along the way when using exf_iprec=64.
845    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
846      - change discretisation of evp-solver in order to avoid another exchange
847        (changes lab_sea) and clean up a little
848      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
849        help the adjoint (this also changes the results slightly)
850      - add a few "_d 0" where they had been missing in seaice_evp.F
851      - cleaning up: remove unused seaice_calc_rhs.F
852    o pkg/exf: some cleaning-up:
853      - change various "constants" into runtime parameters
854      - cleaned-up Large&Yeager04 routine which should eventually
855        replace exf_bulkformulae.F (changed names of S/R and CPP)
856        and merged various ALLOW_ATM_WIND options
857     only used with thsice pkg (in thsice_get_exf.F):
858      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
859        which are used when useStabilityFct_overIce=TRUE (= the default)
860      - change default values of ice & snow emissivity and scale downward LW
861        by ice & snow emissivity.
862    o pkg/thsice:
863     fix few little problems, in thsice_calc_thickn.F:
864      - growth vertically (and not laterally) if iceFrac == iceMaskMax
865      - melt only laterally if hIce < hThinIce (as the comments say)
866      and in thsice_extend.F:
867      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
868      - start to form ice as soon as the minimum ice-volume is reachable.
869     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
870      and cpl_aim+ocn
871    o pkg/kpp
872     - move computation of surface related input fields to KPP into a new
873       subroutine kpp_forcing_surf.F
874     - remove wrong (within bi,bj loops) EXCH calls.
875     - little cleaning (add argument myThid in last position, cvs header ...)
876     - for now, fix conservation problem by exchanging KPPviscAz (may not
877       be the best fix)
878    o pkg/seaice
879     - check for inconsistent evp parameter/cpp-flag combination
880     - remove leftover errIO flat for obsolete name list error handling
881    o OpenAD
882     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
883    
884    checkpoint59a
885    o pkg/seaice: some parameter clarifications and a little bit of clean up
886    o pkg/thsice: rename run-time parameters:
887       himin       -> hIceMin
888       himin0      -> hThinIce
889       hihig       -> hThickIce
890       i0          -> i0swFrac
891       transCoef   -> bMeltCoef
892       frac_energy -> fracMelting
893      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
894       with default values (for now) that do not change the results.
895      remove old version of thsice vars advection in pkg/seaice.
896    o in FFIELDS.h:
897      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
898      - make pLoad & sIceLoad always available (but still only used if
899         ATMOSPHERIC_LOADING is #define).
900    o pkg/kpp: replaced _KPP_RL with _RL
901    o bug fixes for vertical diffusivity computations when both KPP and
902        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
903        are no longer updating the vertical diffusivity array
904        (passed as argument) but are (re-) setting those arrays.
905    o pkg/seaice: fix bug in evp solver, while doing that
906      - change (improve?) discretization of stress computations for both
907        cgrid-lsr and evp solver
908      - add a new routine to compute strain rates
909      - the above changes lab_sea results
910      - add no slip conditions for evp solver (off by default), lsr-version
911        may follow
912      - fix exchange for shear at Z-points (does not change lab_sea)
913      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
914        (to force the user to pick a time step since there is not "safe" way
915        of choosing it)
916      - add principal stress diagnostics
917      - rearrange fields for evp a little to avoid having to call a: too many
918        exchanges and b: exchanges for stress trensor components which we do
919        not have.
920      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
921        of evp, complete rewrite for lsr case (latter is does not yet work
922        in all cases)
923    o pkg/kpp: add code to have mixing in shelf ice caverns
924      - add myThid to all kpp routines (long overdue)
925    
926    checkpoint59
927    o pkg/exf:
928      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
929        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
930      - move exf header files from lower_case.h to UPPER_CASE.h ;
931        add missing cvs Header & Name
932      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
933      - add namelist param. selectStressGridPosition, exf_monFreq
934      - retire many _CLIM routines, and remove data.exf_clim
935        + params moved to data.exf
936        + climsst, climsss now handled by exf_set_gen, i.e.
937          climss?period=0 refers to constant field,
938          climss?period=-12 to monthly forcing
939      - split up namelists in data.exf
940    o pkg/seaice:
941      - remove seaice_exch and seaice_exch_uv
942      - remove superfluous exchange of theta
943      - add myThid to seaice_budget_ocean/ice
944      - add new interface for atmospheric wind forcing (C-grid only)
945        + new routine
946        + two new field (taux, tauy for stress over ice)
947        + removed one global field (DAIRN) for C-grid case only
948    o pkg/thsise
949      - 2nd set of modifs for thsice adjoint in conjunction with exf
950    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
951    
952    checkpoint58y_post
953    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
954      vertical diffusivity, similar to that in MOM4; turned on using
955      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
956      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
957    o Added capability for 3D specification of background vertical diffusion
958      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
959      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
960      "data" file that contains the 3D vertical diffusivity coefficients.
961    o ice dynamics (pkg/seaice) with thsice thermodynamics:
962      - add code within pkg thsice to advect & diffuse sea-ice fields
963      similar to (and will replace) what has been added in  seaice_advdiff.F,
964      but: - conserving Mass, Heat & Salt.
965           - better when using non-linear advection scheme (not yet fully tested)
966           - can also be used in atmospheric set-up (for now, only the diffusion).
967    
968    checkpoint58x_post
969    o IO option for global-file compact format:
970      - add options when generating topology (utils/exch2/matlab-topology-generator)
971      - add I/O capability (pkg/mdsio).
972      - adapt utils/matlab/rdmds.m to read this format.
973      for now long-line format not yet supported by pkg/mdsio (& exch2).
974    o shelfice: add a few diagnostics
975    
976    checkpoint58w_post
977    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
978      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
979      (and replace horiVertRatio in NH code).
980      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
981                         and tutorial_plume_on_slope (sensitive to truncation)
982    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
983      directly to drive seaice model (C-grid only)
984    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
985     - reintroduce computation of wind from stress,
986     - compute tau (in exf_bulkformulae.F) from windstress averaged to
987       mass points to avoid tau = 0
988     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
989    o rdmnc.m: make it work with "global" files created with gluemnc
990    o rdmnc.m : some improvements in dealing with singleton dimension
991      (tested on all testreport mnc output files).
992    o genmake2: disable pkg/profiles if netcdf test fails.
993    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
994    o move call to cal_readparms up to make calendar parameters/variable available
995      to all packages
996    
997    checkpoint58v_post
998    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
999      useDynP_inEos_Zc tested.
1000    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1001    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1002      and portions thereof.  See read_cs.txt for description and examples.
1003    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1004      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1005      following the great-circle arc between those 2 points.
1006    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1007      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1008    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1009     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1010     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1011     - still needs work (not working with some options ; efficiency to improve)
1012       and serious testing.
1013     - use this scheme for temperature & salinity in 2 advection test exp.:
1014       advect_xy & advect_xz, respectively.
1015    
1016    checkpoint58u_post
1017    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1018    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1019    o testreport: add option "-skipdir" to skip some test.
1020    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1021      momentum calculation.
1022    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1023    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1024      remove checkpoint.F and the_correction_step.F (no longer used);
1025      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1026    o add option (linFSConserveTr) to correct for tracer source/sink due to
1027      Linear Free surface
1028    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1029    o pkg/thsice: fix reading mnc-pickups
1030    
1031    checkpoint58t_post
1032    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1033    o pkg/mdsio:
1034     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1035       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1036       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1037     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1038     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1039       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1040     - new S/R (to replace MDSWRITEMETA), which allows to write more
1041       informations (variable names, time ...) to meta files.
1042     - modify rdmds.m to give back the meta file content.
1043    o pkg/diagnostics: change vertical interpolation to be safer, and more
1044       flexible (define p-levels to interpolate to in data.diagnostics);
1045      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1046       diagnostic pointer.
1047    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1048    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1049    o fix multi-category seaice:
1050     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1051       SEAICE_MULTICATEGORY
1052     - fix short wave heat flux
1053    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1054       and allow to use EVP solver. Change forward lab_sea: test both EVP
1055       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1056    o Initial check-in of lab_sea adjoint
1057      (very similar to natl_box_adjoint/code_seaice)
1058      * used C-grid and EVP solver
1059      * used KPP, GM/Redi
1060      * uses inAdExact=.TRUE.
1061      * gradient checks fail for both ADM and TLM
1062        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1063        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1064        issue is related to forward mismatch between g77 an ifort
1065    o pkg/seaice: overhaul of thermodynamics
1066     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1067     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1068     - move a few global fields out of SEAICE.h into seaice_growth.F and
1069       make them 2D (FICE/QNETO/ ...)
1070     - remove FO (it is the same as QNETO)
1071     - introduce a few local fields to avoid modifying external fields such
1072       as atemp, etc.
1073    
1074    checkpoint58s_post
1075    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1076      changed exf_set_gen.F so that
1077        genperiod=0 means input file is one time-constant field and
1078        genperiod=-12 means input file contains 12 monthly means
1079    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1080      this affects truncation error ; generate new output file for exp. which
1081      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1082        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1083        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1084        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1085        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1086        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1087    o start implementation of deep-atmosphere and anelastic formulation
1088    o verification: remove 2nd copy of input files and use script "prepare_run"
1089      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1090    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1091    o profiles: fix for multithreaded case
1092    
1093    o diagnostics: rename few diags:
1094      s/'PRESSURE'/'RCENTER '/g
1095      s/'TICE    '/'oceFreez'/g
1096      s/'TAUX    '/'oceTAUX '/g
1097      s/'TAUY    '/'oceTAUY '/g
1098      s/'SWFLUX  '/'oceQsw  '/g
1099      s/DIFx/DFxE/g
1100      s/DIFy/DFyE/g
1101      and add few ocean-forcing diagnostics:
1102      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1103    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1104      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1105      as actual snow thickness.  It now refers everywhere to effective snow
1106      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1107    
1108    checkpoint58r_post
1109    o modifications to pkg/seaice/growth.F, which change results of
1110      lab_sea experiment: fixes pertain to melting snow over open water, to
1111      masking EVAP under sea ice, and to using the correct AREA variable for
1112      computations of EVAP, PRECIP, HSNOW, and GHEFF
1113    o add ability to read bathy, salt, and theta using MNC (off by def)
1114    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1115      both are turned off by default and do no change any results
1116    o seaice advection with pkg/thsice: a step toward the use of non-linear
1117      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1118    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1119      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1120      in natl_box (affects results @ truncation level: update output.txt)
1121    o multi-threading and IO:
1122      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1123      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1124        (needed to work with SingleCpuIO): tested in all verif. exp.
1125    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1126      affects the results (but none of the verification test uses this scheme).
1127    o Adding some pkg/diagnostics capability to pkg/seaice
1128      (will certainly be subject to changes)
1129    o ctrl: adding new control variables:
1130      lwflux, lwdown, evap, snowprecip, apressure, runoff
1131    
1132    checkpoint58q_post
1133    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1134      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1135      high_res_cube configuration by 4% on Columbia.
1136    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1137      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1138      dynamical allocation (seems to work in multi-threaded).
1139    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1140      single CPU io) so that TAF does not have to see EESUPPORT.h
1141    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1142    
1143    checkpoint58p_post
1144    o obcs: stop if obcs is used with useCDscheme = .true.
1145    o shelfice:
1146     - fix a sign error so that no slip at shelfice interface works
1147     - remove stop for combination non-hydrostatic code and shelfice. That does
1148       not mean, that the results are correct, but at least they are numerically
1149       stable
1150    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1151    o added adjoint exch routined for all exch*3d* routines
1152      and updated flow directives
1153    
1154    checkpoint58o_post
1155    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1156      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1157    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1158      and clean-up reading/writing of pickup files.
1159    o fix local version of read/write pickup (NH part) in rotating_tank/code
1160    o simplify EXCH interface:
1161     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1162     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1163    o added the regrid package
1164    o shelfice:
1165     - add a simple boundary layer scheme to reduce noise
1166     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1167    
1168    checkpoint58n_post
1169    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1170       local variable (not in common block).
1171    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1172      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1173      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1174        to work with SingleCpuIO.
1175    o add "_d 0" to real constant of pkg/cfc subroutines ;
1176       update exp. cfc_exemple & tutorial_cfc_offline output files.
1177    o multi-threading and IO:
1178      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1179        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1180      - barrier before and after reading.
1181      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1182      - avoid using MDS_WRITELOCAL for LAND pkg output.
1183      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1184        common-block variables ; Allows multi-threading with master-thread IO.
1185    o change default MAX_NO_THREADS from 32 to 4 ;
1186      and stop cleanly when MAX_NO_THREADS is too small.
1187    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1188    
1189    checkpoint58m_post
1190    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1191       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1192    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1193       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1194       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1195    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1196        add MITgcm_tutorials (= code + all the tutorials)
1197    o ecco, option to compute cost for total ssh (mean+anom)
1198    o consistent with addition of ptracer and ssh in pkg/profiles
1199    o profiles: adding ptracer and ssh
1200    o testreport: change multi-test output-file name
1201      (from output.txt.{name} to output.{name}.txt)
1202    o profiles: now ok for mutli-tiles case
1203    o seaice: add 4 parameters for different advection schemes for area,
1204      (effective) seaice thickness, enthalphy, and snow height. Their default
1205      is the standard parameter SEAICEadvScheme
1206    o calc_gw:
1207     - add cosFacU in zonal viscous flux (harmonic.visc.).
1208     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1209       of tutorial_plume_on_slope.
1210    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1211    o calc_gw: true flux-form, account for horizontal grid spacing.
1212      update rotating_tank results, but not plume_on_slope (affected at
1213      truncation level, 11 digits).
1214    
1215    checkpoint58l_post
1216    o calc_gw:
1217     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1218     - remove side-drag for now (need to fix it); update plume_on_slope results.
1219     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1220    o commit code to make SST/SSS weights spatially variable
1221      (based on either variable in-situ or variable initial T/S weights)
1222    o pkg/ecco:
1223      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1224        now based on horizontally varying weights wthetaLev, wsaltLev
1225      * cost_averagesflags now returns year indices in addition to day, month
1226      * sflux balance is performed on annual basis
1227        (sflxumm, sfluxmm2, bal_sfluxmm)
1228      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1229        including separate counting and multipliers
1230    o pkg/rbcs
1231      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1232    
1233    checkpoint58k_post
1234    o testreport:
1235     - always build in dir. "build" (if not there, mkdir build instead of building
1236       & running in input)
1237     - run in dir run (if it exists), in build otherwise.
1238     - call prepare_run (if input/prepare_run exists)
1239     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1240    o pkg/exf modifications to interpolation and rotation routines for more
1241       reasonable treatment of North Pole singularity: for tracers North Pole
1242       value is set to northernmost zonal-mean value, for zonal velocity it is
1243       set to zero, and for meridional velocity it is set to northernmost value.
1244    o pkg/exf/exf_check_range.F
1245     - add tile index to diagnostics and move stop statement to the very
1246       end of the routine.
1247    o pkg/diagnostics: (diagnostics_main_init.F)
1248      define title of isomorphic variables according to the current config.
1249    o pkg/thsice with pkg/seaice dynamics:
1250    - fix domain of computation (interior only, required for exf) and do exchanges
1251    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1252    o towards a standard way of dealing with multi-threading in MONITOR
1253      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1254    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1255       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1256    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1257    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1258    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1259       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1260    o tracer advection:
1261     - clean-up and simplify calc_common_factors.F
1262     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1263       advection subroutine (but still not used within DST advection S/R)
1264    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1265    
1266    checkpoint58j_post
1267    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1268      from file (collects calls previously in FORWARD_STEP)
1269    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1270    o adjoint store dir. adjusted accordingly
1271    o genmake2
1272      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1273    
1274    checkpoint58i_post
1275    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1276      on wind stress (SEAICEstressFactor defaults to 1.)
1277    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1278      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1279    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1280      on CS-grid: no longer loosing mass.
1281    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1282    o pkg/ggl90: fix sloppy output and fix a bug
1283    o pkg/seaice: added SEAICEuseEVPpickup parameter
1284      - Set to false in order to start EVP solver with
1285        non-EVP pickup files when using SEAICEuseEVP
1286      - fix sign error in diffusion in seaice_calc_rhs
1287    
1288    checkpoint58h_post
1289    * Modifications for bottom topography control
1290      o replace hFacC by _hFacC at various places
1291      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1292      o add non-self-adjoint cg2d_nsa
1293      o update autodiff support routines
1294      o re-initialise hfac after ctrl_depth_ini
1295      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1296    * Adding verification for 5x5 box (4-layer) bottom topography control
1297    
1298    checkpoint58g_post
1299    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1300       used for mean seasonal cycle, mean diurnal cycle); add an example
1301       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1302    o pkg/ggl90:
1303      - add parameter (minimum surface kinetic energy)
1304      - fix bug (avoiding division by zero)
1305    o couple pkg/thsice to pkg/seaice:
1306      - modify advection in seaice to accomodate new scalar fields to be advected
1307      - only muliDimAdection scheme work with seaice/thsice
1308      - mapping of thsice-variables to seaice-variables, back and forth
1309      - does not break the verification experiments, but does not give the
1310        desired results either
1311    o pkg/seaice
1312      - make (default) second order advection a bit less confusing?
1313    
1314    checkpoint58f_post
1315    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1316      to pkg/seaice):
1317      - new routines thsice_map_exf and thsice_get_exf provide the interface
1318      - add an additional formal parameter to thsice_solve4temp
1319    o pkg/exf:
1320      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1321      - correct Stefan-Boltzmann constant
1322      - new parameter for longwave surface emittance
1323      - separate some stuff from exf_bulkformulae into new routines  
1324        exf_radiation, exf_wind
1325      - add new parameters and constants: longwave emissivity for ocean, ice
1326        and snow, evaporation parameters over ice
1327      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1328        either wind from stress or stress from wind
1329    o pkg/thSIce:
1330    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1331    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1332       and THSICE_CALC_THICKN
1333    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1334    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1335      to make debugging easier.
1336    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1337    o pkg/bulk_force:
1338      - clean-up comments and parameters ;
1339      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1340    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1341      generate new output for test-experiment: aim.5l_cs.thSI
1342    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1343      testreport accordingly
1344    
1345    checkpoint58e_post
1346    o SEAICE_CGRID adjoint done
1347    o R_STAR adjoint implemented.
1348      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1349      * need to sort out init. of h0facc, etc.
1350    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1351      to be able to use it in pure forward.
1352    
1353    checkpoint58d_post
1354    o upgrade simple test-experiment to tutorial example:
1355     step.1: duplicate the experiment and (step.2) will remove the old copy.
1356      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1357      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1358      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1359      tutorial_global_oce_biogeo    <- copy of dic_example
1360      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1361      tutorial_plume_on_slope       <- copy of plume_on_slope
1362      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1363      tutorial_global_oce_optim     <- empty for now (David ?)
1364      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1365     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1366    o correct a sign problem in cost_scat.F
1367    o obcs and ptracers: fix boundary conditions for advections schemes
1368      with larger stencil
1369    o thsice adjoint: start
1370    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1371      completeness
1372    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1373      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1374    o ptracers adjoint:
1375      * avoid extensive recomputatations
1376      * fix missing re-init. of gptr (missed by TAF)
1377    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1378      me to turn off the excessive output to STDOUT that this package produces
1379    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1380      and add those terms in Vector-Invariant formulation.
1381    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1382      if the control period (xx_hfluxperiod etc) is 0
1383    o in profiles pkg, clean routines and fix details
1384    o in ecco pkg, reading ssh data:
1385      fix problem in case the model does not start at iter0=0
1386    o fix mnc-pickup/restart for ptracers
1387    o new package prifiles:
1388      code to compute profile-based cost by Gael Forget
1389      (modifs in ecco, ctrl, autodiff)
1390    o Benign bug fix in initialization (spotted by M. Mazloff) of
1391      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1392    
1393    checkpoint58c_post
1394    o adjoint: finish NLFS adjoint and provide reference output in
1395      verification/global_ocean.90x40x15/results_ad_nlfs
1396    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1397      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1398      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1399      with SEAICE_CGRID defined.
1400    o move calendarDumps from "data" to "data.cal" and clean-up the code
1401      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1402    o add useEXF & useCAL flags (for now, set in hard-coded way)
1403    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1404      (were missing in NH mode, and wrong in quasihydrostatic mode).
1405      waiting for Chris updated version of calc_gw to add those CALLs.
1406    o fix bug in quasihydrostatic S/R ;
1407      add a test for this option: global_ocean.90x40x15.qshyd
1408    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1409      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1410    o add on/off flag useOffLine for package OFFLINE
1411    o seaice:
1412      - modify advection so that it works also on the C-grid
1413      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1414        problem in multi-tile runs with C-grid
1415      - add flags for clipping ice velocities and/or masking solver forcing
1416      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1417        C-grid solver
1418      - added a few comments to seaice_diffusion.F
1419      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1420        are now exclusive)
1421      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1422        required re-ordering the code a little:
1423       + make DAIRN global variable (defined in SEAICE)
1424       + move computation of the viscosities eta and zeta into a new separate
1425         routine (because I need to recompute them in seaice_ocean_stress.F)
1426    
1427    checkpoint58b_post
1428    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1429      update output.txt of exp. aim.5l_cs.thSI
1430    o various mnc cleanups and improvements:
1431      + shrink lookup tables by factor of ~4
1432      + better error reporting when running out of lookup space
1433      + able to handle longer path/file names (up to 500 chars)
1434    o adjoint:
1435      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1436      - TBD: "hidden" mom_vecinv recomp. in dynamics
1437    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1438     (allow to differentiate between forcing components using new integer flags:
1439      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1440     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1441    o ecco
1442      - enable trend removal from SSH anomaly obs.
1443    o adjoint
1444      - a fix for PmEpR when #undef EXACT_CONSERV
1445      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1446      - try to fix "hidden" recomp. in forward_step for NLFS
1447        (NLFS seems broken sometimes after I checked it in)
1448    o seaice:
1449     - add c-grid version of the dynamic solver:
1450       + three new routines that are the c-grid substitute lsr, dynsolver
1451         and ostres
1452       + put a few fields that were local to dynsolver into global common
1453         blocks, so that I can move the computation of stresses etc into
1454         seaice_lsr (saves coding but may break the adjoint).
1455     - replace more hardwired parameters by runtime parameters
1456     - add ice masks that mask the rhs of the implicit solvers where there
1457       is no ice (commented out in seaice_dynsolver, because i am not sure
1458       if this works properly), eventually this should replace the clipping
1459       of ice velocities in seaice_dynsolver to +/-40cm/s.
1460    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1461      include it only where its needed
1462    o move balancing of fluxes before the call of external_forcing_surf
1463    o seaice:
1464      - correct units of turning angles (now they are really in degrees)
1465      - move computation of GWATX/Y out of main routine into dynsolver
1466      - initialize GWATX/Y in seaice_init
1467    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1468      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1469    o seaice: add runtime flags for turning angles (default to zero)
1470    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1471      and trend from exf forcing and ctrl control adjustments
1472    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1473      (since checkpoint57x_post)
1474    o change the default rotation period to 86164.s = the Earth rotation
1475    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1476      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1477    o seaice advection: add code for choosing between the default (2nd order
1478      central differences) and multiDim advection schemes provided by
1479      pkg/generic_advdiff
1480    o seaice:
1481      - removed all references to SEAICE_GRID.h fields from
1482        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1483        (cubed-sphere configuration will change a little)
1484      - grid computations in seaice_init are obsolete now.
1485      - cleaned up code a little so that is easier to read (hopefully).
1486      - added new (better?) discretizations of default advection and diffusion
1487        (turn on with SEAICEuseFluxForm)
1488      - replace 1 in 3d global fields by kSurface in growth.F
1489      
1490    checkpoint58a_post
1491    o seaice:
1492      - bug fix in advect.F
1493    o shelfice:
1494      - separate shelfice load anomaly from pload (breaks with time
1495        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1496        Its default is 0., but it may be computed more cleverly from (unknown)
1497        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1498        done offline. A good approximation of the pressure load anomaly is
1499        necessary to avoid large initial adjustment processes underneath
1500        deep-reaching shelfice.
1501      - small fix in ISOMIP shelfice_thermodynamics
1502      - add more sophisticated thermodynamics of Hellmer (1989), this is
1503        now the default
1504      - give a few constants more intuitive names
1505    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1506      if bulk formulae are used in long integration (especially EmPmR). Turn
1507      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1508      if balancePrintMean, the imbalance that is substracted is printed to
1509      STDOUT.
1510    o fix bug (typo) in obcs_apply_eta.F
1511    o add a new package shelfice which enables us to model the circulation
1512      underneath shelf-ice with draughts of hundreds of meters.
1513     - works
1514     - to do: + include improved thermodynamics
1515              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1516                instead of new field kTopC
1517              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1518                instead of new field R_shelfIce and new code in ini_depth.F
1519                and ini_mask_etc.F?
1520              + adjust vertical mixing schemes?
1521    o seaice pkg:
1522     - add a cpp-flag to include a simple formula for a salinity dependent
1523       freezing point of sea water at the surface
1524     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1525       meridional stresses are now different (and hopefully correct)
1526    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1527       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1528       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1529    o pkg/diagnostics: add options and parameters for regional-statistics
1530       diagnostics ; define regions by reading a region-mask from a file
1531       (might add other options later)
1532    o pkg/bulk_force:
1533     - add option and parameters to use AIM surface-flux formulae.
1534     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1535       others forcing fields (defined in PARM05, parameter file "data") are loaded
1536       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1537     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1538     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1539     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1540       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1541     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1542    
1543    checkpoint58
1544    o add "--embed-source" option to genmake2 which, when the supporting
1545      tools can be compiled (as determined by genmake2) will turn on the
1546      embed_files package which then embeds the entire MITgcm source code
1547      (*.[fFhc] + Makefile) used for the build within the executable
1548      - requested by CNH but off by default
1549      - adds a paltry <9MB to the mitgcmuv executable in most cases
1550      - only writes the output when useEMBEDSRC in eedata is true
1551    o clean up 3-dim. relaxation codes:
1552      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1553      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1554      * Thanks to Tom Haine for testing!
1555    
1556    checkpoint57z_post
1557    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1558      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1559    o fix the pickup behavior for obcs in combination with ptracers
1560    o fix a bug in ptracers_external_fields_load
1561    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1562      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1563    o transfered surface NH pressure to eta field (if exactConserv).
1564    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1565         and update lab_sea output.txt file.
1566    o completing 3-dim. relaxation code: additional term
1567         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1568      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1569      * At compile time, in "EXF_OPTIONS.h" set
1570          #define  ALLOW_CLIMTEMP_RELAXATION
1571          #define  ALLOW_CLIMSALT_RELAXATION
1572      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1573          tauThetaClimRelax3Dim = 15552000.0,
1574          tauSaltClimRelax3Dim  = 15552000.0,
1575      * 3 cases:
1576          1) Use a constant-in-time 3-dim. field
1577          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1578          3) Real-time relax. to time-evolving prescribed field
1579    o Adding Laplacian-type smoothness constraint on
1580      initial and boundary (forcing) controls (ic, bc)
1581      * enable at compile-time via
1582        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1583      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1584      * Absolute scale somewhat unclear so far
1585      * no area weighting was included since no other cost term does so far
1586    
1587    checkpoint57y_post
1588    First step for a NLFS adjoint
1589    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1590    o new init. routines for calc_r_star, calc_surf_dr
1591    o still need to deal with ini_masks_etc
1592    o testreport seemed happy
1593    checkpoint57y_pre
1594    
1595    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1596    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1597    o add new offset feature to offline pkg (plus minor cleanup)
1598    o cfc fixes for final year of integration
1599    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1600      be in GCHEM_OPTIONS).
1601    
1602    checkpoint57x_post
1603    o fix testreport Pb in multiple test experiment.
1604    o cleanup our namelist syntax in verification:
1605      - make it more F95 standards compliant (some work still needed)
1606      - allows the vast majority of our tests to work with gfortran
1607    o Non-Hydrostatic:
1608     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1609     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1610    o Allow to apply AB on T,S rather than on AB(gT,gS):
1611     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1612     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1613       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1614     - need a "clever" read_pickup to restart from the other AB formulation
1615    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1616    o remove some unused variables (reduces number of compiler warnings)
1617    o adjoint
1618      * Disable useVariableViscosity for adjoint for time being
1619        (there are a number of extensive recomputations)
1620      * Initialize certain variables needed for adjoint
1621    
1622    checkpoint57w_post
1623    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1624                 fix the singleCpuIO RS version of MDSWRITEFIELD
1625       and add a WARNING if using globalFiles=T with multi-processors.
1626    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1627      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1628    o tracer advection scheme:
1629      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1630       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1631       was not very convenient).
1632      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1633       (further tests needed for the implicit DST & Flux-Limiter schemes).
1634    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1635      and sRef for convenience, handy, when you want to initialize
1636      ptracers in a large domain with a constant non-zero value. Also,
1637      untangle ptracers_init.F a little.
1638    
1639    checkpoint57v_post
1640    o change dome exp. to use variable viscosity in side-drag terms.
1641    o remove all the files from the cfc_offline test since they are now
1642      incorporated into tutorial_cfc_offline which has been producing
1643      identical results for a few days of testing
1644    o add new parameter: sideDragFactor to enable half-slip-side BC
1645      and change side-drag S/R to use viscosity from mom_calc_visc
1646      (can switch back by setting sideDragFactor=0.); affects results at
1647      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1648       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1649    o vorticity & strain are now computed without masking, to account for
1650      no-slip-side BC in variable viscosity calculation ; mask is applied
1651      anyway later on, before computing advection/coriolis terms.
1652    o modify exp4 to test new obcs support for reading from external files
1653      and for passive tracers
1654    o fix behavior of ptracers_monitor when monitor output is written to a
1655      netcdf-file; still not independent of monitor.F (writes in the same
1656      file).
1657    o change default value of tRef (put a uniform, meaningful value for ocean
1658      & atmos) and initialize sRef (was missing, as Martin mentioned).
1659    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1660      to be proportional to enstrophy dissipation length.  Thus,
1661       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1662      This is now consistent with Smagorinsky and with the manual.
1663    
1664    checkpoint57u_post
1665    o OBCS and PTRACERS: add open boundary support for passive tracers
1666      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1667        OB-values from file; this is not different from the way theta and salinity
1668        are treated
1669      - however, Orlanski-radiation conditions are not supported, and the model
1670        will stop if you use pTracers and Orlanski at the same time.
1671      - beefed up the rountine obcs_external_fields_load: now only those open
1672        boundary values are overwritten with values from files for which there
1673        are really files, otherwise the OB-fields remain untouched. This makes
1674        it possible to use different OBs at different ends of the domain (as
1675        with EXF)
1676    o reduce number of exch calls in shap_filt (s2).
1677    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1678      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1679    
1680    checkpoint57t_post
1681    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1682    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1683      same truncation, independent of the face number: affects affects several
1684      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1685    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1686      note that biharmonic viscosity + no-slip was not tested in any experiment.
1687    o fix bug in non-linear free-surf side-drag ; generate new output for
1688      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1689    o make mnc honor the writeBinaryPrec flag for most kinds of output
1690    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1691    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1692      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1693    o add brackets in multi-terms sum to get same truncation, independent of
1694      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1695      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1696    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1697      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1698      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1699      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1700      Suggested values of viscosity parameters found in mom_calc_visc.
1701      Many new viscosity diagnostics available.
1702    
1703    checkpoint57s_post
1704    o Add clearing-house for viscosity calculations, mom_calc_visc and
1705      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1706      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1707      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1708      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1709      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1710      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1711      ViscAhStrain and viscAhTension are now retired.
1712    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1713    o In response to JMC's bug report, genmake2 now ignores any soft-links
1714      that it finds in the *current* directory when searching for files.
1715      Soft-links found in any other source directories will still work as
1716      they did before.
1717    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1718      a C routine to unlimit the stack size
1719    o mnc-ify pkg/aim snapshot vars
1720    o mnc-ify pkg/land as requested by Daniel
1721    o various changes to mnc including:
1722      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1723      - output can now be grouped so that all files within a group
1724          change the ITER portion of their names in lock-step together
1725      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1726          and works with both EXCH1 and EXCH2 (but needs more testing)
1727      - writing works for all verification test cases w/ g77 on Linux
1728    
1729    checkpoint57r_post
1730    o make MNC variable initialization happen earlier
1731    o add diagnostics for (almost) each term of the momentum Eq.
1732    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1733    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1734    o remove MINIMAL_TAVE_OUTPUT option ;
1735      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1736    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1737      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1738    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1739    o add time-dependent SST, SSS control
1740    o cost terms in ecco/ modularized (new cost_generic.F)
1741    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1742    o new infrastructure for seaice model vs. obs misfits in seaice/
1743      * driver from the_main_loop.F is seaice_cost_driver.F
1744      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1745      * gradient check in Exp. 6a of natl_box_adjoint/
1746    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1747      (see README file)
1748    
1749    checkpoint57q_post
1750    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1751    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1752      - bug was reported by Jean-Michel and Ian Fenty
1753    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1754      update exp. cpl_aim+ocn output.
1755    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1756      Needed for high-res. runs with large global files
1757      to be able to limit tapelev size
1758    o Changed some tests for adjoint:
1759      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1760      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1761      * global_ocean.90x40x15/ back to default 3-level checkpointing
1762    o Modifications to enable scripted COMMON to MODULE conversion
1763      * verification/OpenAD/code/ has necessary scripts and description;
1764      * converts, compiles and runs successfully;
1765    
1766    checkpoint57p_post
1767    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1768    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1769      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1770    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1771    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1772      (was already the case for dissipation with mom_vecinv,
1773       and also the case for grad.PhiHyd when staggered-timeStep)
1774      This will allow to put dissipation out-off the AB time-stepping.
1775     Unfortunately, affects truncation error. Update output of exp. that "fails"
1776      (cg2d matching number) and leave the others for later: front_relax(10),
1777      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1778      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1779    
1780    checkpoint57o_post
1781    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1782      (2) its ready to be documented during the 20050801 DocFest
1783    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1784      for ideal_2D_oce and lab_sea on linux_ia32_g77
1785    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1786      in global1x1_tot/code_seaice_adj to access indices 32, 33
1787      (worth another tag)
1788    
1789    checkpoint57n_post
1790    o adding precip control xx_precip 32
1791    o adding swflux control xx_swflux 33
1792    o Replacing 10 forcing penalty cost routines by 1 generic.
1793    o Implementing partitioning in time-mean and variable adjustment
1794      for atmos. state.
1795    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1796    o in natl_box_adjoint:
1797      * updated exp 1 to 10
1798        (but does not have time-mean vs. variable split results yet)
1799    o updated global1x1/*_seaice_adj/
1800      to incorporate latest changes
1801    o enable useSingleCpuIO for mdsio vector routines
1802      (applies in particular to tapelev I/O)
1803    o removed inefficient K-loop in all active_file*control*.F
1804    
1805    checkpoint57m_post
1806    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1807      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1808    o pkg/exch2: filling of face-corner halo regions is optional
1809      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1810    
1811    checkpoint57l_post
1812     tag before updating tutorials (pre-release-2)
1813    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1814       for output and interpolation of input fields onto model grid)
1815    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1816       Affects results of exp. rotating_tank ; update output.txt.
1817    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1818          and taking the square quantity and/or using a fraction-weight field.
1819    o fix aim_diagnostics_init.F mate numbers.
1820    o add mnc output capability to diagnostics/diagstat and update
1821      our cvsignore files for the ACSII output generated
1822    
1823    checkpoint57k_post
1824    o lab_sea now uses diagnostics package and provides a suite of
1825      new EXF diagnostics output.
1826    
1827    checkpoint57j_post
1828    o exf
1829      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1830        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1831        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1832      * extended diagnostics output
1833        - now includes all EXF variables
1834        - hs, hl moved to common block
1835        - separate S/R for diagnostics, called after ctrl vector is added
1836        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1837        - EXFqnet contains true Qnet (i.e. includes qsw)
1838      * updated verif. lab_sea, global_with_exf
1839      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1840        to ensure that diagnostics sees a true EXFqnet
1841    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1842    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1843      several times with different frequencies.
1844    o mnc-ify the thsice package as requested by Daniel Enderton
1845      - the monitor--MNC output needs work
1846      - many attributes need to be added (most are currently blank)
1847    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1848      - many attributes need to be added (most are currently blank)
1849    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1850    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1851    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1852      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1853         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1854    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1855     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1856    
1857    checkpoint57i_post
1858    o Diagnostics package was changed: diagnostic allocation is now deactivated
1859      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1860    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1861      add 1rst Order upwind vertical Shear.
1862    o add a quick fix for A/B checkpointing in OFFLINE mode
1863    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1864      end-run around the C/Fortran linking horror in eesup/src/timers.F
1865    o added pkg/runclock: allows user to terminate run based on wall clock
1866    o added non-hydrostatic scaling parameter: nh_am2
1867    o pkg/my82: futile attempt to make results compiler-independent by adding
1868      some "_d 0", etc. no effect.
1869    o for mnc output, fill the 'T' coordinate var with myTime and create a
1870      separate 'iter' variable for iteration count
1871    o pkg/diagnostics:
1872      add new capability: output of Global/Regional & per-level statistics ;
1873      tested against monitor output (including land & thSIce) on various exp.
1874    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1875    
1876    checkpoint57h_done
1877      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1878      data.diagnostics, data.gchem, data.ptracers) is done.
1879    
1880    o pkg/diagnostics: prepare for Global/Regional statistics.
1881      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1882    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1883      and rename it: DIFFERENT_MULTIPLE
1884    
1885    checkpoint57h_post
1886    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1887    o pkg/diagnostics: change output frequency, now in seconds (instead
1888      of Nb of iterations). This requires to change data.diagnostics.
1889    checkpoint57h_pre
1890    
1891    o in mnc, let the user create the output dir if both mnc_outdir_date
1892      and mnc_outdir_num are false
1893    o add fflags() to pkg/diagnostics which allows one to specify, on a
1894      per-file basis, the file precision [default behavior is unchanged]
1895    o added diagnostics to pkg/kpp, including computation of mixed layer
1896      depth based on a temperature/density criterion
1897    o updated verification/natl_box to test the new pkg/kpp diagnostics
1898    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1899    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1900    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1901      not mnc -- this mistake was found by JMC and is now corrected
1902    
1903    checkpoint57g_post
1904    o add Adams-Bashforth 3rd Order time stepping:
1905      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1906      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1907    checkpoint57g_pre
1908    
1909    o make lambda[Theta,Salt]ClimRelax spatially varying
1910      (default remains spatially uniform constant based on tau)
1911    o added new control variables
1912      * init. uVel, vVel, etanN
1913      * lambda[Theta,Salt]ClimRelax
1914    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1915      (suggested by G. Forget)
1916    
1917    checkpoint57f_post
1918    o add parameter "baseTime" = model base time = time at iteration zero
1919      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1920      account for baseTime shift
1921    o move Coriolis arrays from PARAMS.h to GRID.h
1922    checkpoint57f_pre
1923    
1924    o mnc-ifying the seaice package
1925    o introduced an alternative length scale calculation for use in the limiting
1926      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1927    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1928    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1929      as well as grad(vort3).  Made it compatible with both approximate form
1930      for the cubed sphere and full form of these gradients.  Added flag
1931      useFullLeith to select between approximate and full form.  
1932    o add "d0" in getcon.F to reduce differences between compilers/platforms
1933      update output.txt of exp. fizhi-gridalt-hs
1934    o change port_rand funtion to allow to set the seed.
1935    o fix obscure MNC bug involving conversion between reals and integers
1936      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1937        new version is now more standards-compliant
1938    o adjoint-related modifications
1939      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1940      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1941      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1942    
1943    checkpoint57e_post
1944    o Adding eddy stress controls a la Ferreira et al.
1945    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1946    
1947    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1948      update output.txt of exp. fizhi-gridalt-hs
1949    o add more "Z" dimensions and associated coordinate vars to MNC
1950    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1951    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1952      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1953      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1954      months and years.  Requires pkg/cal.
1955    o diagnostics: add pickup functionality
1956      - off by default for backwards compatibility
1957      - current version only uses MDSIO -- MNC will be added
1958    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1959    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1960    
1961    checkpoint57d_post
1962    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1963    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1964      output from the diagnostics package
1965    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1966    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1967      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1968    o add coordinate variables to the MNC output from the diagnostics package
1969    o change MNC-flags default value: true when useMNC=TRUE
1970    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1971      the ability (off by default) to read the grid information using MNC
1972    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1973    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1974    o do snap-shot diagnostics at the middle of the time-interval (instead of
1975      at the end).
1976    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1977      new test for AIM with thSIce + slab-ocean
1978    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1979    o move state variable diagnostics to the beginning of the time step ;
1980      (note: still needs some work specially for snap-shot diagnostics)
1981      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1982    
1983    checkpoint57c_post
1984    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1985    o generate new output.txt files on faulks with g77 & the new -ieee option
1986    checkpoint57c_pre
1987    
1988    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1989      update output.txt of exp. global_ocean.90x40x15
1990    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1991      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1992    o add saltFlux(+File) forcing capability with periodicExternalForcing
1993    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1994    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1995    o improvements for the MNC output from DIAGNOSTICS:
1996      - correct handling of the unlimitied dimension
1997      - all dims now have associated coordinate variables
1998      - variables located at U, V, and Corner ("Z") points are now written
1999        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2000        *all* data points are output
2001    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2002    o added pkg/seaice/seaice_monitor.F
2003    o mdsio_readfield.F can now read files visible only to master MPI process.
2004    o pkg/seaice: some test code for ice-modified ocean stress
2005    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2006      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2007      spurious negative numbers for precipitation and humidity.  Will cause
2008      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2009    o pkg/ctrl/
2010      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2011        May be enabled via doPackDiag
2012      *  introduce z-scaling of
2013         + gradient (doZscalePack) and
2014         + control (doZscaleUnpack)
2015    o pkg/mdsio/
2016      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2017      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2018    
2019    checkpoint57b_post
2020    o simplify options in diagnostics_fill arguments (remove weird combinations)
2021    o fix MNC coordinate variables so that they now contain per-face index
2022      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2023      general, EXCH2 grids are only aligned to a "local" coordinate system
2024    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2025    o Implement instantaneous output within pkg diagnostics:
2026      setting a negative frequency in data.diagnostics produces
2027     "snap-shot" output (as opposed to time-average if freq > 0)
2028    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2029      NOTE: change ptracer diagnostics name: use 2 characters to work with
2030            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2031    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2032      becomes the coordinate variable for the 'T' dimension
2033    o add CF-style coordinate variables to MNC
2034      - just a first cut:  numbers are meaningless on the cubesphere and
2035        missing along the T axis but otherwise it works!
2036    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2037    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2038    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2039      this is based directly on what the model compute, so that the content of
2040      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2041    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2042    o clean up build options files for SunOS, in particular
2043      - remove -traditional from xmakedepend
2044      - change -xarch=v9 to -xarch=native for f77
2045      - restore use of make (not gmake)
2046      - add CC=gcc if using g77
2047    o changes per discussion of AM, JMC, & EH3 today:
2048      - move redundant "grid" variables out of "state" -- in preparation of
2049        creating proper CF-style coordinate variables and in recognition
2050        that any/all grid variables can be easily copied (eg. w/NCO) from
2051        the grid files into any of the other NetCDF files
2052      - *always* output grid variables with MDSIO (this will eventually be
2053        changed)
2054      - output MNC grid file if useMNC is true
2055    o every instance of _END_MASTER() has been found and replaced with
2056      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2057      preprocessors
2058    o re-arrange diagnostics pkg initialisation:
2059     - allow each package to extend the available diagnostics list
2060     - add some checking and fix small problems (multi-threaded, ...)
2061     - new S/R diagnostics_fill (replace fill_diagnostics):
2062       look through the short list of active diag. (instead of the long list)
2063       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2064    
2065    checkpoint57a_post
2066    o this set of changes restores TAMC compatibility
2067      tested for global_ocean.90x40x15 adjoint on trough
2068      (what a pain)
2069    
2070    checkpoint57a_pre
2071    o some modifs in tools/build_options for sunos
2072    o call ctrl_pack for ctrl at end for optimcycle=0
2073    
2074    checkpoint57
2075    o add horizontal bi-harmonic viscosity for vertical velocity
2076      - new parameter viscA4W (defaults to viscA4)
2077      - affects only non-hydrostatic code
2078      - to be done: no-slip lateral boundary conditions
2079    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2080    o implement Implicit Vertical advection for pTracers
2081    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2082      (implemented also for implicit vertical diffusion & advection)
2083    o OBCS: extend application of tracer open boundary conditions
2084      to a strip beyond the boundary of width Olx/Oly
2085    o add call monitor to TAF set of required calls (flow directives)
2086      and include in natl_box_adjoint
2087    o untangle a few ifdefs related to cost, ctrl, autodiff
2088      untangel a few ALLOW_ECCO_OPTIMIZATION
2089    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2090      (theta2, salt2 in ecco_cost_weights)
2091    
2092    checkpoint56c_post
2093    o OBCS as control variables
2094      - update ctrl_ad_diff.list, obcs_ad_diff.list
2095      - remove balance of obcs controls from default
2096      - fix index bug nobcs in ctrl_init
2097      - fix dummy fields filen in ctrl_pack
2098      - add dummy weights for obcs
2099    o lsopt: comment out fort.94 output
2100    o optim:
2101      - remove unnecessary header files
2102      - adjusted namelists
2103      - add xerbla.F to Makefile
2104    o exf:
2105      - multiple modifications of exf_check_range
2106      - unit change in exf_init_runoff from [m/year] to [m/s]
2107    o mdsio:
2108      - i/o-vector change debugLevel from debLevA to debLevB
2109    
2110    checkpoint56b_post
2111    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2112      is called from DO_THE_MODEL_IO
2113      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2114      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2115      - clean up PTRACERS_WRITE_TIMEAVE a little
2116    o add another verification experiment that tests both the cfc-pkg and
2117      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2118      reactive tendencies treated inline with regular timestepping
2119    o testreport previously did a lousy job of comparing small numbers, so
2120      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2121      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2122      testreport.
2123    o ptracers_monitor: bug fix for MPI
2124    
2125    checkpoint56a_post
2126    o GCHEM: finish reorganizating the package
2127      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2128        (introduces another 3D-array for each passive tracer, but only if
2129        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2130        gchemTendency is not needed because the timestep is done separately)
2131      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2132      - GCHEM is now---more or less cleanly---separate from PTRACERS
2133      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2134        so clear to me how that should be done in a general way.
2135    o CFC: improve formatting of output in CFC_ATMOS
2136    o PTRACERS:
2137      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2138        that ALL experiments with ptracers enable can be checked. This makes
2139        GCHEM_MONITOR obsolete.
2140      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2141        monitorFreq
2142      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2143    o add PTRACERS (PTR0[1-5]) to testreport output
2144    o exf_check_range:
2145      * default changed to .TRUE.
2146      * will check values for niter0 if debLevA, every timestep if debLevB
2147      * STOP in exf_check_range if 'out of range'
2148      * range chosen generous to allow for potential extema
2149      TBD: a version with stricter range
2150           permitted range would be runtime parameters
2151  o GMredi:  o GMredi:
2152    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2153    - 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 2156  o GCHEM:
2156    - 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
2157      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2158    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2159      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2160        this flag is now only visible within GCHEM-pkg routines.
2161      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2162        be replaced by a 3D array that is computed before thermodynamics; for
2163        this, the tracer ID iTracer had to be included into the parameter list
2164        of ptracers_forcing
2165      - set up forward_step to call gchem_forcing, that will replace
2166        gchem_forcing_int in ptracers_forcing
2167      - cleaning up
2168  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
2169    
2170  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2383  o add two new packages
2383    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2384    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2385      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2386      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2387  o add offline package  o add offline package
2388  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2389    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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