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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1076 by mlosch, Tue Mar 17 10:22:09 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: turn a few hard wired parameters into run time parameters
8    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
9      time in seconds as promised by the usints in seaice_monitor and exf_monitor
10    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
11      that are not cubed-sphere grids
12    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
13    o pkg/ctrl:
14      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
15    o non-hydrostatic (calc_gw.F):
16      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
17      update output of exp. global_ocean.cs32x15.viscA4
18    o remove backward compatibility for thetaMin,phiMin
19      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
20    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
21      interpolated wind field not only for curvilineargrid=.true., but also
22      for a rotated grid (rotateGrid=.true.)
23    o pkg/exf: add capability to bypass interpolation for runoff
24      by setting yet another CPP-flag
25    o eesupp/src, B-grid exchange:
26      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
27    o autodiff
28      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
29      allows to switch to single-prec common blocks;
30      corresponding switch occurs in tamc.h, integer isbyte
31      TAF store directivs "byte" and "kind" seem equivalent;
32      Most tamc.h have been updated correspondingly.
33    
34    checkpoint61i
35    o autodiff:
36      fix autodiff_sore/_restore indices for obcs
37      (spotted by I. Hoteit, M. Mazloff)
38    o pkg/autodiff, pkg/ctrl:
39      Add flag to reduce all tapelev I/O to single-prec.
40      In data.ctrl set
41        doSinglePrecTapelev = .TRUE.
42    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
43      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
44    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
45      real fresh water flux (not yet)
46    o pkg/mdsio & rw:
47     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
48     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
49    o pkg/flt:
50     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
51       init_fixed & ini_varia.
52     - clean-up & simplify linear interpolation S/R:
53       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
54     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
55     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
56     - add vert. coordinate & horiz. indices to output files.
57     - change vertical position in initial condition, from index to depth [m].
58     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
59       (easier to get to a curvilinear grid) ; delX,delY no longer used.
60    o pkg/ggl90: a few modifications:
61     - fix bottom boundary condition, and interpolation of KappaE
62       near top and bottom
63     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
64     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
65     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
66    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
67      (maintain temporary backward compatibility, until next checkpoint)
68    
69    checkpoint61h
70    o pkg/diagnostics with "periodic averaging diagnostics":
71      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
72    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
73    o pkg/obcs: fix loop ranges for balancing code
74    o pkg/flt:
75     - improve criteria for finding which tile owns a float.
76     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
77    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
78      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
79      with ocean biogeo)
80    o pkg/flt:
81     - do some cleaning and fix the restart ;
82     - add output.txt in flt_example/results to get this pkg tested.
83    o genmake2: add an EXTENDED_SRC option and flag.
84       for now, cannot be turned on on command line (only through genmake_local)
85    o pkg/mdsio: read/write vector:
86     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
87     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
88       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
89     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
90      (drop to 4 digits matching for grad). But this test does not look very
91      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
92    
93    checkpoint61g
94    o pkg/flt:
95      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
96       + make OPTIONS file more standard.
97      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
98      - fix _BYTESWAPIO CPP-Flag
99      - standard reading of file-parameter "data.flt"
100      - fix argument list of S/R FLT_RESTART
101      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
102    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
103    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
104      a still unfixed compiler/optimization bug
105    
106    checkpoint61f
107    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
108      update results of global_ocean.cs32x15.icedyn test.
109    o move getcon.F from model/src to pkg/fizhi.
110    o pkg/exf: add parameter for extrapolation of temp up to the surface
111       and option to prevent negative evap (in bulk_largeyeager04 only).
112    o Prather Advection scheme: fix tracer conservation for divergent flow
113      (e.g., when using NonLin Free-Surface).
114    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
115    o gmredi (Visbeck-variable-K):
116     - add more parameters to Visbeck-variable-K.
117     - use a 5 points average for dSigmaR in Visbeck-K calculation
118       (more "homogenous": same stencil and same weights as in dSigmaH)
119     - update output of ideal_2D_oce experiment.
120    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
121      (#undef REAL4_IS_SLOW)
122     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
123       coordinate variable
124     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
125       (surface forcing fields), removes some of the functionality
126     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
127     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
128       probably not all: copy _RS surface flux fields to RL field before
129       calling DIAGNOSTICS_FILL
130     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
131       real*4 (CALL EXCH_*_RS) versions.
132     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
133       (generate new output).
134    
135    checkpoint61e
136    o gmredi (Visbeck-variable-K):
137      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
138      - change computation of Visbeck-K where Slope > Smax :        
139        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
140        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
141    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
142      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
143    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
144    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
145      does not become too large (to avoid precision problems in implicit-diffusion
146      solver); update ideal_2D_oce output.
147    o pkg ggl90:
148      - in ggl90_cal.F: compute only one set of visc/diff, used to
149        step forward TKE/T/S/momentum
150      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
151        have Prandlt =1)
152    o gmredi (fm07):
153      - add lower limit on Transition layer thickness + lower limit on 1/lambda
154      - allow to set few more params from data.gmredi
155    o pkg ggl90:
156          - add missing sqrt(2) factor in computation of mixing length
157            scale in ggl90_calc.F
158            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
159    
160    checkpoint61d
161    o adjoint modifs
162      - adapt to new field rhoInSitu
163      - allow to revert from StoreDynVars2D, StoreDynVars3D
164        to individual fields
165        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
166    o store 3-D (in-situ) density in commom block (DYNVARS.h)
167     - save 1 rho computation.
168     - no longer modify T & S inland when using down_slope pkg.
169    o gad_som : allow to switch to SOM advection for T & S without corresponding
170      pickup files (using new S/R: MDS_CHECK4FILE).
171    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
172      (for useSingleCpuIO to work in multi-threaded)
173    o pkg/shelfice:
174     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
175       with SHELFICEtopoFile in data.shelfice
176     - move code for reading ice shelf topography and modifying hFacC into separate
177       subroutines of the shelfice package
178     - separate initialisation of "fixed" and "variable" variables
179     - kTopC is not (yet) replaced by kSurfC, although this is possible
180    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
181    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
182      and rename:
183      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
184      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
185    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
186    
187    checkpoint61c
188    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
189      to add mass source/sink of fluid in the interior (3-D generalisation
190      of oceanic real-fresh water flux).
191    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
192    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
193    o new pkg: down_slope
194      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
195      - presently, modify T & S inland (dwnslp_calc_rho.F).
196        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
197      - implementation for ocean in P-coords not tested.
198      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
199    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
200      (to facilitate conversion of oceanic pkg to p-coordinate).
201    o change FIND_RHO to FIND_RHO_2D :
202      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
203    o new pkg: cheapaml
204    
205    checkpoint61b
206    o exch2:
207      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
208      - no longer depend on the order sequence (N,S,E,W).
209      - 3rd exchange no longer needed (tested with 24 tiles).
210      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
211      - exch_UV_A-grid readily available (but not yet tested).
212      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
213      (both are no longer needed) in exch_uv: no effect in forward run; but
214       get truncation error differences with adjoint exch.
215    o exch2:
216     - change index-bounds storage (moved from target to local tile,
217       more intuitive this way) ; rename/remove some variables.
218     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
219    
220    checkpoint61a
221    o exch2/matlab-topology-generator:
222      fix bug in index bounds for N-S internal exchange (hard to tell if this
223      had any effect on the solution).
224    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
225      is exceeded
226    o testreport: modify syntax of awk, so that it works also with
227      awk, and not only with nawk and gawk
228    
229    checkpoint61
230    o autodiff
231      Change default for TAF usage by removing argument '-nonew_arg'
232      This changes TAF subroutine argument list (ordering of active var.)
233      Omission of this flag leads to incompatibility w.r.t. TAMC
234      To restore TAMC-compatibility, need following modifs:
235      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
236      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
237      Tested TAF version is 1.9.22
238      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
239    
240    checkpoint60
241    --->>> This is the last checkpoint for which generating the adjoint
242    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
243    --->>> by default.
244    --->>> Future checkpoints will ommit this flag by default.
245    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
246    o pkg/grdchk: Add gradient check to etan0 perturbations.
247    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
248    o pkg/autodiff: more flexibility in zeroadj.
249      model/src: modifying do_oceanic_phys.F accordingly.
250    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
251    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
252      special setup of gmredi for which the adjoint is stable
253      enough for parameter optimization.
254    o bridging the gap between eddy stress and GM.
255      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
256          along with a change in CPP option (now ALLOW_EDDYPSI).
257      -> when using GM w/ GM_AdvForm:
258          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
259          is applied either in the tracer Eq. or in momentum Eq.
260          depending on data.gmredi (intro. GM_InMomAsStress).
261      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
262      The key modifications are in model/src/taueddy_external_forcing.F
263      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
264    
265    checkpoint59r
266    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
267      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
268      fix option to read coriolis(@ cell-corner) from files with CS-grid.
269    o pkg/mnc: add some attributes to standard 1D-coordinate variables
270    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
271      mass points, when using mnc for output
272      - add runtime parameter (missing_value, missing_value_int) to override
273        default (which is the value of getcon('UNDEF'))
274    o pkg/mnc: prepare mnc for the actual use of missing values with the
275      diagnostics package: small fix in mnc_cw_readwrite.template and more
276      initialisation of never used fields
277      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
278      versions
279    o pkg/thsice/thsice_ini_vars.F added default initial values so that
280      thermodynamics sea ice solver does not blow up when some initial fields
281      are missing.
282    o move from external_forcing_surf.F to ini_forcing.F
283      the p-coord. hack consisting in using pLoad to set phi0surf ;
284      update output of tutorial_global_oce_in_p (affected @ truncation level).
285    o Freshen up a bit hs94.1x64x5, notably:
286      remove rotationPeriod and tRef=5*0. (adjoint only), and add
287      exactConserv=.TRUE.
288    o pkg/generic_advdiff:
289      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
290      applies to files where Temperature & Salinity 2nd Order moments are used.
291    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
292      this uses a dynamically allocated internal state data structure
293      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
294      and requires a fortran 90 compiler
295    
296    checkpoint59q
297    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
298       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
299    o Refresh tutorial_global_oce_biogeo, notably:
300      - change bathymetry (put back seamounts in ACC, use hFacs)
301      - change EOS (POLY3 --> JMD95Z)
302      - use Bryan-Lewis vertical diffusivity
303      - use multidimensional advection
304      - remove old virtual virtual in dic pkg, now done through ptracer pkg
305      - change a couple of parameters in dic pkg
306    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
307    o pkg/obcs: change default to OBCSfixTopo = .true.,
308      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
309      - replace "debugMode" with "debugLevel .GE. debLevB"
310    o implementation of TAF directives for gchem,cfc,dic
311    o remove "exp5" (replaced by tutorial_deep_convection).
312    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
313      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
314      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
315      --> changes results in exp4, seaice_obcs
316    o tutorial_deep_convection :
317      update the set-up and increase resolution and domain size ; start
318      from pseudo initial conditions = output at t=120mn in order to see
319      something happening when running testreport.
320    o pkg/seaice: add os7mp as an advection scheme
321                  add check for advection schemes
322                  add a flag for restoring T and S underneath sea ice
323    o pkg/my82: add netcdf-support and diagnostics
324    o thsice pkg:
325      - Now hsMax limits snow height by turning it into ice following
326        flooding scheme (and now conserving energy)
327      - Slight rewriting of the formula in thsice_calc_thick.F
328      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
329      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
330    
331    checkpoint59p
332    o gchem / dic / cfc :
333      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
334      - add new parameter files: "data.dic" & "data.cfc" ;
335      - various re-arrangement in initialisation & header file ;
336      - fix tutorial_global_oce_biogeo for multi-threaded test.
337    o pkg/dic: test for "pickup_dic" file when restarting ;
338      if no pickup-file, can restart with a re-initialised pH (same as it did
339      before) providing pickupStrictlyMatch is set to False.
340    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
341      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
342    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
343      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
344    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
345     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
346       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
347    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
348       scheme to use for vorticty-term ;
349     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
350       (with default selectVortScheme, return to original discretisation)
351     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
352    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
353    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
354      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
355      also fix diagnostics VISCAHW & VISCA4W.
356    
357    checkpoint59o
358    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
359    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
360      move a few statemens out the main loop into separate loops
361    o pkg/shelfice:
362      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
363        (kg/m^2/s), does not break tests, because in verification/isomip,
364        rhoConstFresh=rhoConst (by accident)
365      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
366      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
367        new file model/src/seawater.F, so that they are available for all pkgs.
368      - convert potential temperature into in-situ temperature. This changes the
369        isomip tests => update tests
370    o add a flag writePickupAtEnd (default=true) to be able to suppress
371      writing a pickup at the last timestep
372    o tools/mpack-1.6 :
373      - disable automake (not working) and autoconf (not needed).
374      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
375        also cleaner with much less compilation warnings.
376    o pkg/profiles:
377      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
378      (for "less than 32 characters name" compiler requirement)
379    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
380      conditions that have a different sampling frequency than S/T/U/V obcs
381    o pkg/diagnostics (stats-diags):
382      - fix global Min/Max in case 1 processor get only empty tiles
383    o genmake2: replace (4 times)
384         make genmake_tc_1.o >> genmake_warnings 2>&1
385      with
386         COMM="$CC $CFLAGS -c genmake_tc_1.c"
387         echo $COMM >> genmake_warnings
388         $COMM >> genmake_warnings 2>&1
389      to make genmake2 always see the value of CC as specified in the optfile.
390    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
391      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
392      - modify verification advect_cs test to test SOM-advection on CS-grid.
393    o pkg/ctrl:
394      - Rewrite of ctrl_map_ini_ecco.F,
395        introducing a generic routine (ctrl_map_ini_gen.F).
396      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
397    
398    checkpoint59n
399    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
400      number in dedicate array "hdiag":
401      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
402        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
403      - many small changes (integer format) for large number of diagnostics
404      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
405        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
406    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
407      usingSphericalGrid, this allows to define the rotated grid coordinates
408      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
409      geographical coordinates according to the inverse of the rotation defined
410      by the Euler angles, so that Coriolis parameter and online-interpolation by
411      exf works with the geographical coordinates on XC/YC/XG/YG.
412      Naturally, this feature does not work with all packages, so some
413      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
414      profiles), because there the coordinates are assumed to be regular
415      spherical grid coordinates.
416    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
417      - introduce isopycnal diffusion coefficient control.
418    o tools/adjoint_options:
419      - additional control vector components.
420    o pkg/mnc: have mnc create marginally meaning full coordinate variables
421      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
422    o pkg/mypackage:
423      - add example of read/write pickup for state-var ;
424      - add entry points to the main code for state-vars diags & write-pickup.
425    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
426      transitions for useExfYearlyFields
427      - add new subroutine that determines the file to read from for
428        use*YearlyFields = .TRUE. and .FALSE.
429      - add a verification experiment to global_with_exf that tests
430        useExfYearlyFields with USE_EXF_INTERPOLATION defined
431    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
432      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
433      subroutines (which could be generated from a template, because they are
434      almost identical), for now they are included in obcs_prescribe_read.F for
435      simplicity
436    o pkg/exf:
437      - add a little more diagnostic to exf_interp_read (in analogy to
438        mds_read_field, can be turned off with debugLevel < debugLevA=1)
439      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
440        ugly but fast by unrolling short inner loops, inserting a unroll=8
441        directive in routine lagran, and splitting a loop and making do while the
442        outermost loop (the latter requires the intoduction of index arrays)
443    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
444    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
445      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
446    o verification/seaice_obcs: updated for restart test and latest options
447    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
448      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
449      for now this is only available for the C-grid code and also within
450      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
451    
452    checkpoint59m
453    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
454      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
455    o gad_som : fix flux output (& diagnostics) to have same units as other  
456      advection scheme fluxes (was previously multiplied by deltaT).  
457    o added verification/seaice_obcs both to test seaice open boundaries
458      and to provide an example matlab scrpt for generating them
459    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
460    o pkg/salt_plume: clean up salt_plume_frac.F to
461      remove redundancy in PlumeMethod 1 and 4
462    o pkg/kpp: added saltplume diagnostics
463    o pkg/obcs and pkg/seaice:
464      - do not set uice and vice to zero when OB*icefile are unspecified
465      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
466      - moved seaice tracer obcs after call to seaice_growth
467    o pkg/salt_plume: added various options for salt plume depth
468      criterion and for vertical distribution of the salt
469    
470    checkpoint59l
471    o pkg/ptracers: new version of ptracers pickup:
472      read meta file and write only fields which are needed to restart.
473      ( same logic as main pickup file ; also using pickupStrictlyMatch )
474    o pkg/seaice:
475      - add timescale for melting due to warm mixed layer as a means of
476        setting SEAICE_availHeatFrac more conveniently
477      - add a CPP-flag/runtime parameter check for flooding algorithm
478      - reformulated availHeat in seaice_growth.F to be independent of AREA
479    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
480      unit changes
481    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
482    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
483      SX vector computer.
484    o pkg/seaice:
485      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
486        seaice forcing fields can now be read only through pkg/exf
487      - removed some unused halos
488    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
489    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
490      or U/VICE from U/VWIND before computing U/VSTRESS
491    
492    checkpoint59k
493    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
494      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
495    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
496      all experiments pass when compile with un-initialised var. checking option.
497    o added pkg/salt_plume
498    o script to test restart (for now, in MITgcm_contrib/jmc_script)
499    o pkg/seaice: new read/write pickup version.
500      read meta file and write only fields which are needed to restart.
501      ( same logic as main pickup file ; also using pickupStrictlyMatch )
502    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
503    o lab_sea.hb87: modify the domain & update output.hb87.txt :
504      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
505      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
506      process. Fixed here by closing the domain at the Northern boundary.
507    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
508    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
509      a set of consecutive levels in/from a 3-D array.
510    o pkg/ptracers:
511      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
512      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
513    
514    checkpoint59j
515    o in pkgs: dic, obcs, offline, rbcs:
516      standard way to compute coeff. for time interpolation between 2 time reccords
517      which retains full precision (& make results less dependent on compiler).
518      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
519    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
520      packages instead of reading ice cover and wind speed separately
521    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
522     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
523      to allow to compile customized code before the update)
524    o cleaning-up:
525      - fix CPP instruction syntax in pkg/obcs
526      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
527        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
528      - fix some threads issue in IO parts.
529    o pkg/dic:
530      - add tons of "_d 0" (--> much better testreports !)
531       and then update outputs of tutorial_global_oce_biogeo
532    o pkg/mom_fluxform:
533      add a special version of momentum advection intended to conserve momentum
534      next to a bathymetry step or a coastline edge. (default = off = #undef)
535    o new read/write pickup version:
536      - for now, only implemented for main (mdsio) pickup file.
537      - write out only what is needed to restart; merge pickup_nh , pickup_ph
538        and main pickup together.
539      - read meta file; read only what is needed to restart; stop if a field
540        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
541        if it make sense (even if the restart is not perfect).
542      - if no meta file, assume that pickup to read corresponds exactly to
543        a pickup that would currently be written.
544      - read pickup written in the old format (until checkpoint59i) if it
545        recognizes an old meta file (no field-list).
546      - add a meta file in exp. which starts from a pickup: 2 cases:
547        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
548         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
549        b) a meta file describing the content of the associated pickup file
550         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
551    o pkg/mdsio & pkg/rw:
552      - new routine to read a meta file ; new set of routine to read
553        Multiple-fields file (with meta file).
554    o added open boundary conditions capability for seaice
555        HSNOW, HSALT, UICE, and VICE
556    
557    checkpoint59i
558    o adjoint:
559      * fix multiDimAdvection adjoint
560        (partial recomputation problem by TAF for fVerT(:,:,kDown)
561        and comlev1 size definition (maxpass vs. max. number of tracers)
562      * verification/global_ocean.90x45x15 adjoint now tests
563        NLFS and multiDimAdvection using DST3 (=30)
564      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
565    o pkg/kpp: add "_d 0" to real constant (if missing);
566      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
567      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
568    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
569      for internal parameters related to restart process (formerly from PARAMS.h)
570      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
571    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
572      as argument. (only atm2d & obcs write_pickup have not yet been updated)
573    o pkg/monitor:
574      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
575      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
576      - account for deep Atmosphere factor and density factor (anelastic)
577    o added open boundary conditions capability for seaice HEFF and AREA
578    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
579      thermodynamics
580      - requires a little reorganization, which affects the testreport results
581        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
582        so that now the conservative form is tested
583      - add a few comments
584    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
585    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
586    o add new diagnostics to seaice: advective, diffusive fluxes (only for
587      multidim-advection, for scheme 2 they are not filled) and transports,
588      thermodynamic growth rates
589    o change units of EmPmR (inside the code, + within coupling interface)
590      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
591      Affects results @ truncation level (cg2d match) and update output of
592       experiments: lab_sea(6), global_ocean.90x40x15(10),
593      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
594      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
595      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
596      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
597    
598    checkpoint59h
599    o pkg/exf:
600      - improve vectorization by moving if-statement out of loops in
601        exf_mapfields, exf_radiation
602      - exf_bulkformulae.F: introduce 2D fields and vectorize code
603    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
604    o testreport:
605      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
606        monitor & update offline_exf_seaice exp. output.
607      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
608    o pkg/seaice:
609      - bug fix in the evp solver: boundary conditions were affected be
610        masking of zMax/zMin (changes results)
611      - minor bug fix in boundary conditions in seaice_calc_strainrates
612        (changes results for no_slip)
613      - seaice_lsr.F: make interpolation of eta dependent on boundaries
614      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
615      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
616        stress formulation and no-slip boundary conditions
617    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
618      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
619    o pkg/seaice: a first HSALT time stepping equation has been checked in
620    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
621      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
622      without requiring DO-IF statements
623    o pkg/thsice:
624      use continuous power-law function for partition of energy between lateral
625      melting/freezing and thinning/thickening ; old code using step function
626      still available with #undef THSICE_FRACEN_POWERLAW
627      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
628    o testreport: change AD testing : check against results/output_adm.txt
629      using same scripts as for forward test.
630    
631    checkpoint59g
632    o adjoint testing: in preparation for changing testreport:
633      - output format: cost and grad written on separated lines
634      - ad output results in directory "results" (instead of "results_ad")
635    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
636    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
637    o pkg/ecco: allow user defined cost function contributions
638    o testreport:
639      Allow to choose (per experiment) the list of tested output variables
640       and the main variable (used to issue a pass/FAIL ) ;
641      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
642      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
643      Also modify printing of summary:
644       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
645       b) echo the list of tested variables in the individual summary.txt of
646          each experiment.
647    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
648      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
649      (but still depend on the tile decompostion of the domain).
650    o pkg/seaice: change a discretization detail to make the B-grid code
651      "more symmetric". This change is likely to remove all "ridges/leads" that
652      where quasi-aligned with the grid in B-grid solutions. It may also be
653      the solution to the stress coupling issues with the B-grid.
654    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
655      remove .cvsignore from input dir. (since testreport no longer run here).
656    o pkg/thsice:
657     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
658     - fix reshaping of sea-ice just after advection:
659       melt all the ice only if ice-volume is too small.
660     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
661       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
662     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
663    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
664      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
665    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
666      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
667      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
668      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
669      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
670      -> update output.txt
671    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
672     this affects truncation error: -> update output.txt of exp:
673      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
674      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
675    
676    checkpoint59f
677    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
678    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
679      a bounded range (in forward mode)
680    o pkg/ecco, ctrl, autodiff and mom_common:
681     internal parameter controls, completements of implementations
682    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
683    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
684      (not seem any difference in testing results).
685    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
686       at face corners.
687    o pkg/generic_advdiff:
688     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
689      loop range indices for computing vertical advection tendency
690      and do the calculation in the interior only (no overlap) ;
691      for now, only implemented for SOM advection (to save CPU time).
692     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
693    o exch2 adjoint
694      First set of changes:
695      - add exch2 hand-written adjoint templates
696      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
697        This will require cleanup in pkg/autodiff/*.F
698        (changed routines currently kept separate in verif. code/)
699      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
700        that used to hide exch2 or cubed-sphere specific code
701        (commented via 'cph-exch2')
702    o pkg/seaice
703      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
704    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
705       output of global_ocean.cs32x15.thsice .
706    
707    checkpoint59e
708    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
709      for B-grid vector (not yet tested) and C-grid vector (<- only used
710      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
711    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
712      (#ifdef ALLOW_SALT_PLUME)
713    o gather_2d/scatter_2d: removed halo regions
714    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
715      scheme and the corresponding test case (under front_relax dir). For now,
716      only available with Skew-flux form and not yet tested in realistic set-up.
717      adjoint: store directives updated, but gradient checks deteriorated,
718      so maybe GM/Redi adjoint is now broken.
719    o seaice adjoint
720      * add AREA, HEFF, HSNOW as control variable
721        (should not change lab_sea results)
722      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
723    o pkg/seaice:
724      * added computation of saltFlux in seaice_growth;
725        For time being, sea ice salinity is assumed constant
726        contribution of snow flooding to freshening of sea ice is neglected.
727        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
728        defaults to 0.0 in order to maintain backward compatibility.
729        Typical values for SEAICE_salinity are 4 to 10 g/kg.
730      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
731      * added SEAICE_availHeatFrac, which specifies fraction of surface level
732        heat content used to melt or grow ice
733      * commented out cap of HICE: it helps keep ice thinner
734      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
735      * applied OBCS T/S mask to HEFFM sea ice mask
736    
737    checkpoint59d
738    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
739     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
740     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
741    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
742     and change default value of parameter "GM_Small_Number";
743     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
744       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
745       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
746    o pkg/ecco: cost function when applying pkg/smooth to controls
747    o pkg/ctrl: add forcingPrecond run time parameter
748    o pkg/seaice:
749     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
750     - fix bug in metric terms of u-equation in LSR solver (implicit part),
751       changes verification/lab_sea
752     - rearrange implicit part of u-equation in LSR solver to make it easier to
753       read, understand, and debug. This causes changes at the truncation level.
754     - fix (serious) bug in the boundary conditions (sign error in the implicit
755       part) of the LSR solver. Changes all LSR results.
756     - fixed problem with HSNOW initialization to avoid thick snow when AREA
757       is initilized with small values - does not change lab_sea results.
758     - added HsnowFile initialization capability
759    o pkg/smooth: addition to model/src and pkg/ctrl so allow
760     initialization of pkg/smooth and application to control vector
761    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
762    o dependencies: pkg/profiles requires pkg/cal
763    o pkg/profiles:
764     - added option ALLOW_PROFILES_GENERICGRID
765         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
766         that interpolation information (grid points and coefficients) is provided
767         within the netcdf input files.
768         -> sample matlab scripts can be found in MITgcm_contrib/gael
769         that allow you to prepare netcdf input files.
770     - also modified: cleaner include statements, cleaner error print statements,
771       cleaner stops when error, and more tests of the netcdf input files consistency.
772    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
773    o pkg/seaice:
774     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
775       requires a new routine: seaice_diagnostics_fill.F
776     - make sure that seaice does not move if not forced (pressure replacement
777       method, Hibler and Ip, 1995), changes results
778     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
779     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
780       It is turned off by default (=-1.), because it changes the results.
781     - make it possible to read AREA from a file, too.
782    
783    checkpoint59c
784    o add S/R and diagnostics for oceanic mixed-layer depth
785    o move GMRedi call after all vertical mixing schemes (including KPP)
786    o pkg/thsice:
787     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
788      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
789    o pkg/obcs:
790     - bug fix for balance code
791    o pkg/seaice:
792      - allow values of SEAICE_elasticParm > 1
793      - add new parameter SEAICE_evpTauRelax as an alternative
794        to SEAICE_elasticParm
795      - make lsr boundary conditions free slip (by default), changes result
796      - add code for no slip boundary conditions for lsr
797      - set minimum of zeta to zero (and not 4e8) (changes results)
798      - add a cap on AREA after advecting AREA if seaice_growth is not called
799    o change calculation of Visbeck K:
800      - no longer depend on tapering scheme; instead, compute slope (limited
801        by GM_maxSlope). this is equivalent to what was comuted before with
802        clipping or linear tappering.
803      - fix vertical averaging (wrong by 1/2 level)
804      - leave the old version (but will not be maintained) within
805        #ifdef OLD_VISBECK_CALC / #endif
806      - update output of exp. ideal_2D_oce
807    o change error catch in calc_r_star to improve vectorization
808    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
809      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
810    o adjoint:
811      Re-organized adjoint checkpointing according to Matt Mazloff
812      (but with modifs/completions/cleanups)
813      Storing is now bundled into large arrays to optimized I/O
814      (and second step in cleanup of the_main_loop)
815    
816    checkpoint59b
817    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
818      - export/import (between ocean & coupler) fields needed for ocean DIC.
819    o pkg/seaice:
820      - get rid of three more exchanges seaice_calc_viscosities (required
821        different loop boundaries in seaice_lsr and seaice_ocean_stress)
822      - bug fix in seaice_ocean_stress (update of lab_sea required)
823      - reduce loop boundaries to necessary minimum also in seaice_evp
824      - go back to the old way of computing deltaC/Z as the adjoint likes that
825        better
826    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
827      passive tracer to an Age Tracer) + update output.txt
828    o pkg/exf:
829      - implement A-grid / C-grid selection for wind-stress input files.
830      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
831      for now, in exf_bulk_largeyeager04.F only :
832      - change implementation for case where windspeed + 2. components wind-stress
833        are read-in. AND use rhoConstFresh to convert evap.
834    o pkg/seaice:
835      - use correct EXCH_UV for wind-forcing (on A-grid).
836      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
837        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
838    o pkg/exf:
839      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
840      EXF_INTERPOLATION:
841      - merge global_with_exf/code version of exf_interp_read.F
842        to the main code ;
843      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
844        reading the file ; Important: This options needs to be defined to recover
845        previous code.
846        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
847      - no longer loose real*8 precision along the way when using exf_iprec=64.
848    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
849      - change discretisation of evp-solver in order to avoid another exchange
850        (changes lab_sea) and clean up a little
851      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
852        help the adjoint (this also changes the results slightly)
853      - add a few "_d 0" where they had been missing in seaice_evp.F
854      - cleaning up: remove unused seaice_calc_rhs.F
855    o pkg/exf: some cleaning-up:
856      - change various "constants" into runtime parameters
857      - cleaned-up Large&Yeager04 routine which should eventually
858        replace exf_bulkformulae.F (changed names of S/R and CPP)
859        and merged various ALLOW_ATM_WIND options
860     only used with thsice pkg (in thsice_get_exf.F):
861      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
862        which are used when useStabilityFct_overIce=TRUE (= the default)
863      - change default values of ice & snow emissivity and scale downward LW
864        by ice & snow emissivity.
865    o pkg/thsice:
866     fix few little problems, in thsice_calc_thickn.F:
867      - growth vertically (and not laterally) if iceFrac == iceMaskMax
868      - melt only laterally if hIce < hThinIce (as the comments say)
869      and in thsice_extend.F:
870      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
871      - start to form ice as soon as the minimum ice-volume is reachable.
872     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
873      and cpl_aim+ocn
874    o pkg/kpp
875     - move computation of surface related input fields to KPP into a new
876       subroutine kpp_forcing_surf.F
877     - remove wrong (within bi,bj loops) EXCH calls.
878     - little cleaning (add argument myThid in last position, cvs header ...)
879     - for now, fix conservation problem by exchanging KPPviscAz (may not
880       be the best fix)
881    o pkg/seaice
882     - check for inconsistent evp parameter/cpp-flag combination
883     - remove leftover errIO flat for obsolete name list error handling
884    o OpenAD
885     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
886    
887    checkpoint59a
888    o pkg/seaice: some parameter clarifications and a little bit of clean up
889    o pkg/thsice: rename run-time parameters:
890       himin       -> hIceMin
891       himin0      -> hThinIce
892       hihig       -> hThickIce
893       i0          -> i0swFrac
894       transCoef   -> bMeltCoef
895       frac_energy -> fracMelting
896      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
897       with default values (for now) that do not change the results.
898      remove old version of thsice vars advection in pkg/seaice.
899    o in FFIELDS.h:
900      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
901      - make pLoad & sIceLoad always available (but still only used if
902         ATMOSPHERIC_LOADING is #define).
903    o pkg/kpp: replaced _KPP_RL with _RL
904    o bug fixes for vertical diffusivity computations when both KPP and
905        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
906        are no longer updating the vertical diffusivity array
907        (passed as argument) but are (re-) setting those arrays.
908    o pkg/seaice: fix bug in evp solver, while doing that
909      - change (improve?) discretization of stress computations for both
910        cgrid-lsr and evp solver
911      - add a new routine to compute strain rates
912      - the above changes lab_sea results
913      - add no slip conditions for evp solver (off by default), lsr-version
914        may follow
915      - fix exchange for shear at Z-points (does not change lab_sea)
916      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
917        (to force the user to pick a time step since there is not "safe" way
918        of choosing it)
919      - add principal stress diagnostics
920      - rearrange fields for evp a little to avoid having to call a: too many
921        exchanges and b: exchanges for stress trensor components which we do
922        not have.
923      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
924        of evp, complete rewrite for lsr case (latter is does not yet work
925        in all cases)
926    o pkg/kpp: add code to have mixing in shelf ice caverns
927      - add myThid to all kpp routines (long overdue)
928    
929    checkpoint59
930    o pkg/exf:
931      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
932        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
933      - move exf header files from lower_case.h to UPPER_CASE.h ;
934        add missing cvs Header & Name
935      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
936      - add namelist param. selectStressGridPosition, exf_monFreq
937      - retire many _CLIM routines, and remove data.exf_clim
938        + params moved to data.exf
939        + climsst, climsss now handled by exf_set_gen, i.e.
940          climss?period=0 refers to constant field,
941          climss?period=-12 to monthly forcing
942      - split up namelists in data.exf
943    o pkg/seaice:
944      - remove seaice_exch and seaice_exch_uv
945      - remove superfluous exchange of theta
946      - add myThid to seaice_budget_ocean/ice
947      - add new interface for atmospheric wind forcing (C-grid only)
948        + new routine
949        + two new field (taux, tauy for stress over ice)
950        + removed one global field (DAIRN) for C-grid case only
951    o pkg/thsise
952      - 2nd set of modifs for thsice adjoint in conjunction with exf
953    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
954    
955    checkpoint58y_post
956    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
957      vertical diffusivity, similar to that in MOM4; turned on using
958      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
959      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
960    o Added capability for 3D specification of background vertical diffusion
961      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
962      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
963      "data" file that contains the 3D vertical diffusivity coefficients.
964    o ice dynamics (pkg/seaice) with thsice thermodynamics:
965      - add code within pkg thsice to advect & diffuse sea-ice fields
966      similar to (and will replace) what has been added in  seaice_advdiff.F,
967      but: - conserving Mass, Heat & Salt.
968           - better when using non-linear advection scheme (not yet fully tested)
969           - can also be used in atmospheric set-up (for now, only the diffusion).
970    
971    checkpoint58x_post
972    o IO option for global-file compact format:
973      - add options when generating topology (utils/exch2/matlab-topology-generator)
974      - add I/O capability (pkg/mdsio).
975      - adapt utils/matlab/rdmds.m to read this format.
976      for now long-line format not yet supported by pkg/mdsio (& exch2).
977    o shelfice: add a few diagnostics
978    
979    checkpoint58w_post
980    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
981      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
982      (and replace horiVertRatio in NH code).
983      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
984                         and tutorial_plume_on_slope (sensitive to truncation)
985    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
986      directly to drive seaice model (C-grid only)
987    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
988     - reintroduce computation of wind from stress,
989     - compute tau (in exf_bulkformulae.F) from windstress averaged to
990       mass points to avoid tau = 0
991     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
992    o rdmnc.m: make it work with "global" files created with gluemnc
993    o rdmnc.m : some improvements in dealing with singleton dimension
994      (tested on all testreport mnc output files).
995    o genmake2: disable pkg/profiles if netcdf test fails.
996    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
997    o move call to cal_readparms up to make calendar parameters/variable available
998      to all packages
999    
1000    checkpoint58v_post
1001    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1002      useDynP_inEos_Zc tested.
1003    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1004    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1005      and portions thereof.  See read_cs.txt for description and examples.
1006    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1007      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1008      following the great-circle arc between those 2 points.
1009    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1010      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1011    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1012     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1013     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1014     - still needs work (not working with some options ; efficiency to improve)
1015       and serious testing.
1016     - use this scheme for temperature & salinity in 2 advection test exp.:
1017       advect_xy & advect_xz, respectively.
1018    
1019    checkpoint58u_post
1020    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1021    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1022    o testreport: add option "-skipdir" to skip some test.
1023    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1024      momentum calculation.
1025    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1026    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1027      remove checkpoint.F and the_correction_step.F (no longer used);
1028      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1029    o add option (linFSConserveTr) to correct for tracer source/sink due to
1030      Linear Free surface
1031    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1032    o pkg/thsice: fix reading mnc-pickups
1033    
1034    checkpoint58t_post
1035    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1036    o pkg/mdsio:
1037     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1038       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1039       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1040     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1041     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1042       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1043     - new S/R (to replace MDSWRITEMETA), which allows to write more
1044       informations (variable names, time ...) to meta files.
1045     - modify rdmds.m to give back the meta file content.
1046    o pkg/diagnostics: change vertical interpolation to be safer, and more
1047       flexible (define p-levels to interpolate to in data.diagnostics);
1048      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1049       diagnostic pointer.
1050    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1051    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1052    o fix multi-category seaice:
1053     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1054       SEAICE_MULTICATEGORY
1055     - fix short wave heat flux
1056    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1057       and allow to use EVP solver. Change forward lab_sea: test both EVP
1058       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1059    o Initial check-in of lab_sea adjoint
1060      (very similar to natl_box_adjoint/code_seaice)
1061      * used C-grid and EVP solver
1062      * used KPP, GM/Redi
1063      * uses inAdExact=.TRUE.
1064      * gradient checks fail for both ADM and TLM
1065        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1066        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1067        issue is related to forward mismatch between g77 an ifort
1068    o pkg/seaice: overhaul of thermodynamics
1069     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1070     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1071     - move a few global fields out of SEAICE.h into seaice_growth.F and
1072       make them 2D (FICE/QNETO/ ...)
1073     - remove FO (it is the same as QNETO)
1074     - introduce a few local fields to avoid modifying external fields such
1075       as atemp, etc.
1076    
1077    checkpoint58s_post
1078    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1079      changed exf_set_gen.F so that
1080        genperiod=0 means input file is one time-constant field and
1081        genperiod=-12 means input file contains 12 monthly means
1082    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1083      this affects truncation error ; generate new output file for exp. which
1084      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1085        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1086        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1087        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1088        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1089        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1090    o start implementation of deep-atmosphere and anelastic formulation
1091    o verification: remove 2nd copy of input files and use script "prepare_run"
1092      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1093    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1094    o profiles: fix for multithreaded case
1095    
1096    o diagnostics: rename few diags:
1097      s/'PRESSURE'/'RCENTER '/g
1098      s/'TICE    '/'oceFreez'/g
1099      s/'TAUX    '/'oceTAUX '/g
1100      s/'TAUY    '/'oceTAUY '/g
1101      s/'SWFLUX  '/'oceQsw  '/g
1102      s/DIFx/DFxE/g
1103      s/DIFy/DFyE/g
1104      and add few ocean-forcing diagnostics:
1105      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1106    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1107      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1108      as actual snow thickness.  It now refers everywhere to effective snow
1109      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1110    
1111    checkpoint58r_post
1112    o modifications to pkg/seaice/growth.F, which change results of
1113      lab_sea experiment: fixes pertain to melting snow over open water, to
1114      masking EVAP under sea ice, and to using the correct AREA variable for
1115      computations of EVAP, PRECIP, HSNOW, and GHEFF
1116    o add ability to read bathy, salt, and theta using MNC (off by def)
1117    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1118      both are turned off by default and do no change any results
1119    o seaice advection with pkg/thsice: a step toward the use of non-linear
1120      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1121    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1122      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1123      in natl_box (affects results @ truncation level: update output.txt)
1124    o multi-threading and IO:
1125      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1126      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1127        (needed to work with SingleCpuIO): tested in all verif. exp.
1128    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1129      affects the results (but none of the verification test uses this scheme).
1130    o Adding some pkg/diagnostics capability to pkg/seaice
1131      (will certainly be subject to changes)
1132    o ctrl: adding new control variables:
1133      lwflux, lwdown, evap, snowprecip, apressure, runoff
1134    
1135    checkpoint58q_post
1136    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1137      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1138      high_res_cube configuration by 4% on Columbia.
1139    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1140      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1141      dynamical allocation (seems to work in multi-threaded).
1142    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1143      single CPU io) so that TAF does not have to see EESUPPORT.h
1144    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1145    
1146    checkpoint58p_post
1147    o obcs: stop if obcs is used with useCDscheme = .true.
1148    o shelfice:
1149     - fix a sign error so that no slip at shelfice interface works
1150     - remove stop for combination non-hydrostatic code and shelfice. That does
1151       not mean, that the results are correct, but at least they are numerically
1152       stable
1153    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1154    o added adjoint exch routined for all exch*3d* routines
1155      and updated flow directives
1156    
1157    checkpoint58o_post
1158    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1159      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1160    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1161      and clean-up reading/writing of pickup files.
1162    o fix local version of read/write pickup (NH part) in rotating_tank/code
1163    o simplify EXCH interface:
1164     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1165     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1166    o added the regrid package
1167    o shelfice:
1168     - add a simple boundary layer scheme to reduce noise
1169     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1170    
1171    checkpoint58n_post
1172    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1173       local variable (not in common block).
1174    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1175      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1176      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1177        to work with SingleCpuIO.
1178    o add "_d 0" to real constant of pkg/cfc subroutines ;
1179       update exp. cfc_exemple & tutorial_cfc_offline output files.
1180    o multi-threading and IO:
1181      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1182        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1183      - barrier before and after reading.
1184      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1185      - avoid using MDS_WRITELOCAL for LAND pkg output.
1186      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1187        common-block variables ; Allows multi-threading with master-thread IO.
1188    o change default MAX_NO_THREADS from 32 to 4 ;
1189      and stop cleanly when MAX_NO_THREADS is too small.
1190    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1191    
1192    checkpoint58m_post
1193    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1194       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1195    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1196       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1197       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1198    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1199        add MITgcm_tutorials (= code + all the tutorials)
1200    o ecco, option to compute cost for total ssh (mean+anom)
1201    o consistent with addition of ptracer and ssh in pkg/profiles
1202    o profiles: adding ptracer and ssh
1203    o testreport: change multi-test output-file name
1204      (from output.txt.{name} to output.{name}.txt)
1205    o profiles: now ok for mutli-tiles case
1206    o seaice: add 4 parameters for different advection schemes for area,
1207      (effective) seaice thickness, enthalphy, and snow height. Their default
1208      is the standard parameter SEAICEadvScheme
1209    o calc_gw:
1210     - add cosFacU in zonal viscous flux (harmonic.visc.).
1211     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1212       of tutorial_plume_on_slope.
1213    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1214    o calc_gw: true flux-form, account for horizontal grid spacing.
1215      update rotating_tank results, but not plume_on_slope (affected at
1216      truncation level, 11 digits).
1217    
1218    checkpoint58l_post
1219    o calc_gw:
1220     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1221     - remove side-drag for now (need to fix it); update plume_on_slope results.
1222     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1223    o commit code to make SST/SSS weights spatially variable
1224      (based on either variable in-situ or variable initial T/S weights)
1225    o pkg/ecco:
1226      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1227        now based on horizontally varying weights wthetaLev, wsaltLev
1228      * cost_averagesflags now returns year indices in addition to day, month
1229      * sflux balance is performed on annual basis
1230        (sflxumm, sfluxmm2, bal_sfluxmm)
1231      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1232        including separate counting and multipliers
1233    o pkg/rbcs
1234      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1235    
1236    checkpoint58k_post
1237    o testreport:
1238     - always build in dir. "build" (if not there, mkdir build instead of building
1239       & running in input)
1240     - run in dir run (if it exists), in build otherwise.
1241     - call prepare_run (if input/prepare_run exists)
1242     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1243    o pkg/exf modifications to interpolation and rotation routines for more
1244       reasonable treatment of North Pole singularity: for tracers North Pole
1245       value is set to northernmost zonal-mean value, for zonal velocity it is
1246       set to zero, and for meridional velocity it is set to northernmost value.
1247    o pkg/exf/exf_check_range.F
1248     - add tile index to diagnostics and move stop statement to the very
1249       end of the routine.
1250    o pkg/diagnostics: (diagnostics_main_init.F)
1251      define title of isomorphic variables according to the current config.
1252    o pkg/thsice with pkg/seaice dynamics:
1253    - fix domain of computation (interior only, required for exf) and do exchanges
1254    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1255    o towards a standard way of dealing with multi-threading in MONITOR
1256      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1257    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1258       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1259    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1260    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1261    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1262       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1263    o tracer advection:
1264     - clean-up and simplify calc_common_factors.F
1265     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1266       advection subroutine (but still not used within DST advection S/R)
1267    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1268    
1269    checkpoint58j_post
1270    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1271      from file (collects calls previously in FORWARD_STEP)
1272    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1273    o adjoint store dir. adjusted accordingly
1274    o genmake2
1275      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1276    
1277    checkpoint58i_post
1278    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1279      on wind stress (SEAICEstressFactor defaults to 1.)
1280    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1281      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1282    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1283      on CS-grid: no longer loosing mass.
1284    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1285    o pkg/ggl90: fix sloppy output and fix a bug
1286    o pkg/seaice: added SEAICEuseEVPpickup parameter
1287      - Set to false in order to start EVP solver with
1288        non-EVP pickup files when using SEAICEuseEVP
1289      - fix sign error in diffusion in seaice_calc_rhs
1290    
1291    checkpoint58h_post
1292    * Modifications for bottom topography control
1293      o replace hFacC by _hFacC at various places
1294      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1295      o add non-self-adjoint cg2d_nsa
1296      o update autodiff support routines
1297      o re-initialise hfac after ctrl_depth_ini
1298      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1299    * Adding verification for 5x5 box (4-layer) bottom topography control
1300    
1301    checkpoint58g_post
1302    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1303       used for mean seasonal cycle, mean diurnal cycle); add an example
1304       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1305    o pkg/ggl90:
1306      - add parameter (minimum surface kinetic energy)
1307      - fix bug (avoiding division by zero)
1308    o couple pkg/thsice to pkg/seaice:
1309      - modify advection in seaice to accomodate new scalar fields to be advected
1310      - only muliDimAdection scheme work with seaice/thsice
1311      - mapping of thsice-variables to seaice-variables, back and forth
1312      - does not break the verification experiments, but does not give the
1313        desired results either
1314    o pkg/seaice
1315      - make (default) second order advection a bit less confusing?
1316    
1317    checkpoint58f_post
1318    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1319      to pkg/seaice):
1320      - new routines thsice_map_exf and thsice_get_exf provide the interface
1321      - add an additional formal parameter to thsice_solve4temp
1322    o pkg/exf:
1323      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1324      - correct Stefan-Boltzmann constant
1325      - new parameter for longwave surface emittance
1326      - separate some stuff from exf_bulkformulae into new routines  
1327        exf_radiation, exf_wind
1328      - add new parameters and constants: longwave emissivity for ocean, ice
1329        and snow, evaporation parameters over ice
1330      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1331        either wind from stress or stress from wind
1332    o pkg/thSIce:
1333    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1334    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1335       and THSICE_CALC_THICKN
1336    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1337    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1338      to make debugging easier.
1339    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1340    o pkg/bulk_force:
1341      - clean-up comments and parameters ;
1342      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1343    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1344      generate new output for test-experiment: aim.5l_cs.thSI
1345    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1346      testreport accordingly
1347    
1348    checkpoint58e_post
1349    o SEAICE_CGRID adjoint done
1350    o R_STAR adjoint implemented.
1351      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1352      * need to sort out init. of h0facc, etc.
1353    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1354      to be able to use it in pure forward.
1355    
1356    checkpoint58d_post
1357    o upgrade simple test-experiment to tutorial example:
1358     step.1: duplicate the experiment and (step.2) will remove the old copy.
1359      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1360      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1361      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1362      tutorial_global_oce_biogeo    <- copy of dic_example
1363      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1364      tutorial_plume_on_slope       <- copy of plume_on_slope
1365      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1366      tutorial_global_oce_optim     <- empty for now (David ?)
1367      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1368     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1369    o correct a sign problem in cost_scat.F
1370    o obcs and ptracers: fix boundary conditions for advections schemes
1371      with larger stencil
1372    o thsice adjoint: start
1373    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1374      completeness
1375    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1376      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1377    o ptracers adjoint:
1378      * avoid extensive recomputatations
1379      * fix missing re-init. of gptr (missed by TAF)
1380    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1381      me to turn off the excessive output to STDOUT that this package produces
1382    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1383      and add those terms in Vector-Invariant formulation.
1384    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1385      if the control period (xx_hfluxperiod etc) is 0
1386    o in profiles pkg, clean routines and fix details
1387    o in ecco pkg, reading ssh data:
1388      fix problem in case the model does not start at iter0=0
1389    o fix mnc-pickup/restart for ptracers
1390    o new package prifiles:
1391      code to compute profile-based cost by Gael Forget
1392      (modifs in ecco, ctrl, autodiff)
1393    o Benign bug fix in initialization (spotted by M. Mazloff) of
1394      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1395    
1396    checkpoint58c_post
1397    o adjoint: finish NLFS adjoint and provide reference output in
1398      verification/global_ocean.90x40x15/results_ad_nlfs
1399    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1400      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1401      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1402      with SEAICE_CGRID defined.
1403    o move calendarDumps from "data" to "data.cal" and clean-up the code
1404      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1405    o add useEXF & useCAL flags (for now, set in hard-coded way)
1406    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1407      (were missing in NH mode, and wrong in quasihydrostatic mode).
1408      waiting for Chris updated version of calc_gw to add those CALLs.
1409    o fix bug in quasihydrostatic S/R ;
1410      add a test for this option: global_ocean.90x40x15.qshyd
1411    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1412      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1413    o add on/off flag useOffLine for package OFFLINE
1414    o seaice:
1415      - modify advection so that it works also on the C-grid
1416      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1417        problem in multi-tile runs with C-grid
1418      - add flags for clipping ice velocities and/or masking solver forcing
1419      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1420        C-grid solver
1421      - added a few comments to seaice_diffusion.F
1422      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1423        are now exclusive)
1424      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1425        required re-ordering the code a little:
1426       + make DAIRN global variable (defined in SEAICE)
1427       + move computation of the viscosities eta and zeta into a new separate
1428         routine (because I need to recompute them in seaice_ocean_stress.F)
1429    
1430    checkpoint58b_post
1431    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1432      update output.txt of exp. aim.5l_cs.thSI
1433    o various mnc cleanups and improvements:
1434      + shrink lookup tables by factor of ~4
1435      + better error reporting when running out of lookup space
1436      + able to handle longer path/file names (up to 500 chars)
1437    o adjoint:
1438      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1439      - TBD: "hidden" mom_vecinv recomp. in dynamics
1440    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1441     (allow to differentiate between forcing components using new integer flags:
1442      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1443     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1444    o ecco
1445      - enable trend removal from SSH anomaly obs.
1446    o adjoint
1447      - a fix for PmEpR when #undef EXACT_CONSERV
1448      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1449      - try to fix "hidden" recomp. in forward_step for NLFS
1450        (NLFS seems broken sometimes after I checked it in)
1451    o seaice:
1452     - add c-grid version of the dynamic solver:
1453       + three new routines that are the c-grid substitute lsr, dynsolver
1454         and ostres
1455       + put a few fields that were local to dynsolver into global common
1456         blocks, so that I can move the computation of stresses etc into
1457         seaice_lsr (saves coding but may break the adjoint).
1458     - replace more hardwired parameters by runtime parameters
1459     - add ice masks that mask the rhs of the implicit solvers where there
1460       is no ice (commented out in seaice_dynsolver, because i am not sure
1461       if this works properly), eventually this should replace the clipping
1462       of ice velocities in seaice_dynsolver to +/-40cm/s.
1463    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1464      include it only where its needed
1465    o move balancing of fluxes before the call of external_forcing_surf
1466    o seaice:
1467      - correct units of turning angles (now they are really in degrees)
1468      - move computation of GWATX/Y out of main routine into dynsolver
1469      - initialize GWATX/Y in seaice_init
1470    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1471      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1472    o seaice: add runtime flags for turning angles (default to zero)
1473    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1474      and trend from exf forcing and ctrl control adjustments
1475    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1476      (since checkpoint57x_post)
1477    o change the default rotation period to 86164.s = the Earth rotation
1478    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1479      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1480    o seaice advection: add code for choosing between the default (2nd order
1481      central differences) and multiDim advection schemes provided by
1482      pkg/generic_advdiff
1483    o seaice:
1484      - removed all references to SEAICE_GRID.h fields from
1485        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1486        (cubed-sphere configuration will change a little)
1487      - grid computations in seaice_init are obsolete now.
1488      - cleaned up code a little so that is easier to read (hopefully).
1489      - added new (better?) discretizations of default advection and diffusion
1490        (turn on with SEAICEuseFluxForm)
1491      - replace 1 in 3d global fields by kSurface in growth.F
1492      
1493    checkpoint58a_post
1494    o seaice:
1495      - bug fix in advect.F
1496    o shelfice:
1497      - separate shelfice load anomaly from pload (breaks with time
1498        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1499        Its default is 0., but it may be computed more cleverly from (unknown)
1500        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1501        done offline. A good approximation of the pressure load anomaly is
1502        necessary to avoid large initial adjustment processes underneath
1503        deep-reaching shelfice.
1504      - small fix in ISOMIP shelfice_thermodynamics
1505      - add more sophisticated thermodynamics of Hellmer (1989), this is
1506        now the default
1507      - give a few constants more intuitive names
1508    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1509      if bulk formulae are used in long integration (especially EmPmR). Turn
1510      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1511      if balancePrintMean, the imbalance that is substracted is printed to
1512      STDOUT.
1513    o fix bug (typo) in obcs_apply_eta.F
1514    o add a new package shelfice which enables us to model the circulation
1515      underneath shelf-ice with draughts of hundreds of meters.
1516     - works
1517     - to do: + include improved thermodynamics
1518              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1519                instead of new field kTopC
1520              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1521                instead of new field R_shelfIce and new code in ini_depth.F
1522                and ini_mask_etc.F?
1523              + adjust vertical mixing schemes?
1524    o seaice pkg:
1525     - add a cpp-flag to include a simple formula for a salinity dependent
1526       freezing point of sea water at the surface
1527     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1528       meridional stresses are now different (and hopefully correct)
1529    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1530       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1531       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1532    o pkg/diagnostics: add options and parameters for regional-statistics
1533       diagnostics ; define regions by reading a region-mask from a file
1534       (might add other options later)
1535    o pkg/bulk_force:
1536     - add option and parameters to use AIM surface-flux formulae.
1537     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1538       others forcing fields (defined in PARM05, parameter file "data") are loaded
1539       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1540     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1541     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1542     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1543       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1544     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1545    
1546    checkpoint58
1547    o add "--embed-source" option to genmake2 which, when the supporting
1548      tools can be compiled (as determined by genmake2) will turn on the
1549      embed_files package which then embeds the entire MITgcm source code
1550      (*.[fFhc] + Makefile) used for the build within the executable
1551      - requested by CNH but off by default
1552      - adds a paltry <9MB to the mitgcmuv executable in most cases
1553      - only writes the output when useEMBEDSRC in eedata is true
1554    o clean up 3-dim. relaxation codes:
1555      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1556      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1557      * Thanks to Tom Haine for testing!
1558    
1559    checkpoint57z_post
1560    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1561      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1562    o fix the pickup behavior for obcs in combination with ptracers
1563    o fix a bug in ptracers_external_fields_load
1564    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1565      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1566    o transfered surface NH pressure to eta field (if exactConserv).
1567    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1568         and update lab_sea output.txt file.
1569    o completing 3-dim. relaxation code: additional term
1570         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1571      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1572      * At compile time, in "EXF_OPTIONS.h" set
1573          #define  ALLOW_CLIMTEMP_RELAXATION
1574          #define  ALLOW_CLIMSALT_RELAXATION
1575      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1576          tauThetaClimRelax3Dim = 15552000.0,
1577          tauSaltClimRelax3Dim  = 15552000.0,
1578      * 3 cases:
1579          1) Use a constant-in-time 3-dim. field
1580          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1581          3) Real-time relax. to time-evolving prescribed field
1582    o Adding Laplacian-type smoothness constraint on
1583      initial and boundary (forcing) controls (ic, bc)
1584      * enable at compile-time via
1585        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1586      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1587      * Absolute scale somewhat unclear so far
1588      * no area weighting was included since no other cost term does so far
1589    
1590    checkpoint57y_post
1591    First step for a NLFS adjoint
1592    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1593    o new init. routines for calc_r_star, calc_surf_dr
1594    o still need to deal with ini_masks_etc
1595    o testreport seemed happy
1596    checkpoint57y_pre
1597    
1598    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1599    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1600    o add new offset feature to offline pkg (plus minor cleanup)
1601    o cfc fixes for final year of integration
1602    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1603      be in GCHEM_OPTIONS).
1604    
1605    checkpoint57x_post
1606    o fix testreport Pb in multiple test experiment.
1607    o cleanup our namelist syntax in verification:
1608      - make it more F95 standards compliant (some work still needed)
1609      - allows the vast majority of our tests to work with gfortran
1610    o Non-Hydrostatic:
1611     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1612     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1613    o Allow to apply AB on T,S rather than on AB(gT,gS):
1614     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1615     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1616       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1617     - need a "clever" read_pickup to restart from the other AB formulation
1618    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1619    o remove some unused variables (reduces number of compiler warnings)
1620    o adjoint
1621      * Disable useVariableViscosity for adjoint for time being
1622        (there are a number of extensive recomputations)
1623      * Initialize certain variables needed for adjoint
1624    
1625    checkpoint57w_post
1626    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1627                 fix the singleCpuIO RS version of MDSWRITEFIELD
1628       and add a WARNING if using globalFiles=T with multi-processors.
1629    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1630      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1631    o tracer advection scheme:
1632      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1633       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1634       was not very convenient).
1635      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1636       (further tests needed for the implicit DST & Flux-Limiter schemes).
1637    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1638      and sRef for convenience, handy, when you want to initialize
1639      ptracers in a large domain with a constant non-zero value. Also,
1640      untangle ptracers_init.F a little.
1641    
1642    checkpoint57v_post
1643    o change dome exp. to use variable viscosity in side-drag terms.
1644    o remove all the files from the cfc_offline test since they are now
1645      incorporated into tutorial_cfc_offline which has been producing
1646      identical results for a few days of testing
1647    o add new parameter: sideDragFactor to enable half-slip-side BC
1648      and change side-drag S/R to use viscosity from mom_calc_visc
1649      (can switch back by setting sideDragFactor=0.); affects results at
1650      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1651       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1652    o vorticity & strain are now computed without masking, to account for
1653      no-slip-side BC in variable viscosity calculation ; mask is applied
1654      anyway later on, before computing advection/coriolis terms.
1655    o modify exp4 to test new obcs support for reading from external files
1656      and for passive tracers
1657    o fix behavior of ptracers_monitor when monitor output is written to a
1658      netcdf-file; still not independent of monitor.F (writes in the same
1659      file).
1660    o change default value of tRef (put a uniform, meaningful value for ocean
1661      & atmos) and initialize sRef (was missing, as Martin mentioned).
1662    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1663      to be proportional to enstrophy dissipation length.  Thus,
1664       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1665      This is now consistent with Smagorinsky and with the manual.
1666    
1667    checkpoint57u_post
1668    o OBCS and PTRACERS: add open boundary support for passive tracers
1669      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1670        OB-values from file; this is not different from the way theta and salinity
1671        are treated
1672      - however, Orlanski-radiation conditions are not supported, and the model
1673        will stop if you use pTracers and Orlanski at the same time.
1674      - beefed up the rountine obcs_external_fields_load: now only those open
1675        boundary values are overwritten with values from files for which there
1676        are really files, otherwise the OB-fields remain untouched. This makes
1677        it possible to use different OBs at different ends of the domain (as
1678        with EXF)
1679    o reduce number of exch calls in shap_filt (s2).
1680    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1681      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1682    
1683    checkpoint57t_post
1684    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1685    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1686      same truncation, independent of the face number: affects affects several
1687      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1688    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1689      note that biharmonic viscosity + no-slip was not tested in any experiment.
1690    o fix bug in non-linear free-surf side-drag ; generate new output for
1691      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1692    o make mnc honor the writeBinaryPrec flag for most kinds of output
1693    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1694    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1695      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1696    o add brackets in multi-terms sum to get same truncation, independent of
1697      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1698      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1699    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1700      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1701      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1702      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1703      Suggested values of viscosity parameters found in mom_calc_visc.
1704      Many new viscosity diagnostics available.
1705    
1706    checkpoint57s_post
1707    o Add clearing-house for viscosity calculations, mom_calc_visc and
1708      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1709      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1710      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1711      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1712      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1713      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1714      ViscAhStrain and viscAhTension are now retired.
1715    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1716    o In response to JMC's bug report, genmake2 now ignores any soft-links
1717      that it finds in the *current* directory when searching for files.
1718      Soft-links found in any other source directories will still work as
1719      they did before.
1720    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1721      a C routine to unlimit the stack size
1722    o mnc-ify pkg/aim snapshot vars
1723    o mnc-ify pkg/land as requested by Daniel
1724    o various changes to mnc including:
1725      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1726      - output can now be grouped so that all files within a group
1727          change the ITER portion of their names in lock-step together
1728      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1729          and works with both EXCH1 and EXCH2 (but needs more testing)
1730      - writing works for all verification test cases w/ g77 on Linux
1731    
1732    checkpoint57r_post
1733    o make MNC variable initialization happen earlier
1734    o add diagnostics for (almost) each term of the momentum Eq.
1735    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1736    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1737    o remove MINIMAL_TAVE_OUTPUT option ;
1738      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1739    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1740      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1741    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1742    o add time-dependent SST, SSS control
1743    o cost terms in ecco/ modularized (new cost_generic.F)
1744    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1745    o new infrastructure for seaice model vs. obs misfits in seaice/
1746      * driver from the_main_loop.F is seaice_cost_driver.F
1747      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1748      * gradient check in Exp. 6a of natl_box_adjoint/
1749    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1750      (see README file)
1751    
1752    checkpoint57q_post
1753    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1754    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1755      - bug was reported by Jean-Michel and Ian Fenty
1756    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1757      update exp. cpl_aim+ocn output.
1758    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1759      Needed for high-res. runs with large global files
1760      to be able to limit tapelev size
1761    o Changed some tests for adjoint:
1762      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1763      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1764      * global_ocean.90x40x15/ back to default 3-level checkpointing
1765    o Modifications to enable scripted COMMON to MODULE conversion
1766      * verification/OpenAD/code/ has necessary scripts and description;
1767      * converts, compiles and runs successfully;
1768    
1769    checkpoint57p_post
1770    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1771    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1772      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1773    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1774    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1775      (was already the case for dissipation with mom_vecinv,
1776       and also the case for grad.PhiHyd when staggered-timeStep)
1777      This will allow to put dissipation out-off the AB time-stepping.
1778     Unfortunately, affects truncation error. Update output of exp. that "fails"
1779      (cg2d matching number) and leave the others for later: front_relax(10),
1780      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1781      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1782    
1783    checkpoint57o_post
1784    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1785      (2) its ready to be documented during the 20050801 DocFest
1786    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1787      for ideal_2D_oce and lab_sea on linux_ia32_g77
1788    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1789      in global1x1_tot/code_seaice_adj to access indices 32, 33
1790      (worth another tag)
1791    
1792    checkpoint57n_post
1793    o adding precip control xx_precip 32
1794    o adding swflux control xx_swflux 33
1795    o Replacing 10 forcing penalty cost routines by 1 generic.
1796    o Implementing partitioning in time-mean and variable adjustment
1797      for atmos. state.
1798    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1799    o in natl_box_adjoint:
1800      * updated exp 1 to 10
1801        (but does not have time-mean vs. variable split results yet)
1802    o updated global1x1/*_seaice_adj/
1803      to incorporate latest changes
1804    o enable useSingleCpuIO for mdsio vector routines
1805      (applies in particular to tapelev I/O)
1806    o removed inefficient K-loop in all active_file*control*.F
1807    
1808    checkpoint57m_post
1809    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1810      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1811    o pkg/exch2: filling of face-corner halo regions is optional
1812      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1813    
1814    checkpoint57l_post
1815     tag before updating tutorials (pre-release-2)
1816    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1817       for output and interpolation of input fields onto model grid)
1818    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1819       Affects results of exp. rotating_tank ; update output.txt.
1820    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1821          and taking the square quantity and/or using a fraction-weight field.
1822    o fix aim_diagnostics_init.F mate numbers.
1823    o add mnc output capability to diagnostics/diagstat and update
1824      our cvsignore files for the ACSII output generated
1825    
1826    checkpoint57k_post
1827    o lab_sea now uses diagnostics package and provides a suite of
1828      new EXF diagnostics output.
1829    
1830    checkpoint57j_post
1831    o exf
1832      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1833        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1834        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1835      * extended diagnostics output
1836        - now includes all EXF variables
1837        - hs, hl moved to common block
1838        - separate S/R for diagnostics, called after ctrl vector is added
1839        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1840        - EXFqnet contains true Qnet (i.e. includes qsw)
1841      * updated verif. lab_sea, global_with_exf
1842      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1843        to ensure that diagnostics sees a true EXFqnet
1844    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1845    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1846      several times with different frequencies.
1847    o mnc-ify the thsice package as requested by Daniel Enderton
1848      - the monitor--MNC output needs work
1849      - many attributes need to be added (most are currently blank)
1850    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1851      - many attributes need to be added (most are currently blank)
1852    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1853    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1854    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1855      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1856         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1857    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1858     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1859    
1860    checkpoint57i_post
1861    o Diagnostics package was changed: diagnostic allocation is now deactivated
1862      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1863    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1864      add 1rst Order upwind vertical Shear.
1865    o add a quick fix for A/B checkpointing in OFFLINE mode
1866    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1867      end-run around the C/Fortran linking horror in eesup/src/timers.F
1868    o added pkg/runclock: allows user to terminate run based on wall clock
1869    o added non-hydrostatic scaling parameter: nh_am2
1870    o pkg/my82: futile attempt to make results compiler-independent by adding
1871      some "_d 0", etc. no effect.
1872    o for mnc output, fill the 'T' coordinate var with myTime and create a
1873      separate 'iter' variable for iteration count
1874    o pkg/diagnostics:
1875      add new capability: output of Global/Regional & per-level statistics ;
1876      tested against monitor output (including land & thSIce) on various exp.
1877    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1878    
1879    checkpoint57h_done
1880      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1881      data.diagnostics, data.gchem, data.ptracers) is done.
1882    
1883    o pkg/diagnostics: prepare for Global/Regional statistics.
1884      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1885    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1886      and rename it: DIFFERENT_MULTIPLE
1887    
1888    checkpoint57h_post
1889    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1890    o pkg/diagnostics: change output frequency, now in seconds (instead
1891      of Nb of iterations). This requires to change data.diagnostics.
1892    checkpoint57h_pre
1893    
1894    o in mnc, let the user create the output dir if both mnc_outdir_date
1895      and mnc_outdir_num are false
1896    o add fflags() to pkg/diagnostics which allows one to specify, on a
1897      per-file basis, the file precision [default behavior is unchanged]
1898    o added diagnostics to pkg/kpp, including computation of mixed layer
1899      depth based on a temperature/density criterion
1900    o updated verification/natl_box to test the new pkg/kpp diagnostics
1901    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1902    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1903    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1904      not mnc -- this mistake was found by JMC and is now corrected
1905    
1906    checkpoint57g_post
1907    o add Adams-Bashforth 3rd Order time stepping:
1908      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1909      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1910    checkpoint57g_pre
1911    
1912    o make lambda[Theta,Salt]ClimRelax spatially varying
1913      (default remains spatially uniform constant based on tau)
1914    o added new control variables
1915      * init. uVel, vVel, etanN
1916      * lambda[Theta,Salt]ClimRelax
1917    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1918      (suggested by G. Forget)
1919    
1920    checkpoint57f_post
1921    o add parameter "baseTime" = model base time = time at iteration zero
1922      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1923      account for baseTime shift
1924    o move Coriolis arrays from PARAMS.h to GRID.h
1925    checkpoint57f_pre
1926    
1927    o mnc-ifying the seaice package
1928    o introduced an alternative length scale calculation for use in the limiting
1929      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1930    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1931    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1932      as well as grad(vort3).  Made it compatible with both approximate form
1933      for the cubed sphere and full form of these gradients.  Added flag
1934      useFullLeith to select between approximate and full form.  
1935    o add "d0" in getcon.F to reduce differences between compilers/platforms
1936      update output.txt of exp. fizhi-gridalt-hs
1937    o change port_rand funtion to allow to set the seed.
1938    o fix obscure MNC bug involving conversion between reals and integers
1939      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1940        new version is now more standards-compliant
1941    o adjoint-related modifications
1942      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1943      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1944      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1945    
1946    checkpoint57e_post
1947    o Adding eddy stress controls a la Ferreira et al.
1948    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1949    
1950    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1951      update output.txt of exp. fizhi-gridalt-hs
1952    o add more "Z" dimensions and associated coordinate vars to MNC
1953    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1954    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1955      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1956      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1957      months and years.  Requires pkg/cal.
1958    o diagnostics: add pickup functionality
1959      - off by default for backwards compatibility
1960      - current version only uses MDSIO -- MNC will be added
1961    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1962    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1963    
1964    checkpoint57d_post
1965    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1966    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1967      output from the diagnostics package
1968    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1969    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1970      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1971    o add coordinate variables to the MNC output from the diagnostics package
1972    o change MNC-flags default value: true when useMNC=TRUE
1973    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1974      the ability (off by default) to read the grid information using MNC
1975    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1976    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1977    o do snap-shot diagnostics at the middle of the time-interval (instead of
1978      at the end).
1979    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1980      new test for AIM with thSIce + slab-ocean
1981    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1982    o move state variable diagnostics to the beginning of the time step ;
1983      (note: still needs some work specially for snap-shot diagnostics)
1984      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1985    
1986    checkpoint57c_post
1987    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1988    o generate new output.txt files on faulks with g77 & the new -ieee option
1989    checkpoint57c_pre
1990    
1991    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1992      update output.txt of exp. global_ocean.90x40x15
1993    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1994      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1995    o add saltFlux(+File) forcing capability with periodicExternalForcing
1996    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1997    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1998    o improvements for the MNC output from DIAGNOSTICS:
1999      - correct handling of the unlimitied dimension
2000      - all dims now have associated coordinate variables
2001      - variables located at U, V, and Corner ("Z") points are now written
2002        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2003        *all* data points are output
2004    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2005    o added pkg/seaice/seaice_monitor.F
2006    o mdsio_readfield.F can now read files visible only to master MPI process.
2007    o pkg/seaice: some test code for ice-modified ocean stress
2008    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2009      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2010      spurious negative numbers for precipitation and humidity.  Will cause
2011      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2012    o pkg/ctrl/
2013      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2014        May be enabled via doPackDiag
2015      *  introduce z-scaling of
2016         + gradient (doZscalePack) and
2017         + control (doZscaleUnpack)
2018    o pkg/mdsio/
2019      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2020      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2021    
2022    checkpoint57b_post
2023    o simplify options in diagnostics_fill arguments (remove weird combinations)
2024    o fix MNC coordinate variables so that they now contain per-face index
2025      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2026      general, EXCH2 grids are only aligned to a "local" coordinate system
2027    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2028    o Implement instantaneous output within pkg diagnostics:
2029      setting a negative frequency in data.diagnostics produces
2030     "snap-shot" output (as opposed to time-average if freq > 0)
2031    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2032      NOTE: change ptracer diagnostics name: use 2 characters to work with
2033            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2034    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2035      becomes the coordinate variable for the 'T' dimension
2036    o add CF-style coordinate variables to MNC
2037      - just a first cut:  numbers are meaningless on the cubesphere and
2038        missing along the T axis but otherwise it works!
2039    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2040    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2041    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2042      this is based directly on what the model compute, so that the content of
2043      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2044    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2045    o clean up build options files for SunOS, in particular
2046      - remove -traditional from xmakedepend
2047      - change -xarch=v9 to -xarch=native for f77
2048      - restore use of make (not gmake)
2049      - add CC=gcc if using g77
2050    o changes per discussion of AM, JMC, & EH3 today:
2051      - move redundant "grid" variables out of "state" -- in preparation of
2052        creating proper CF-style coordinate variables and in recognition
2053        that any/all grid variables can be easily copied (eg. w/NCO) from
2054        the grid files into any of the other NetCDF files
2055      - *always* output grid variables with MDSIO (this will eventually be
2056        changed)
2057      - output MNC grid file if useMNC is true
2058    o every instance of _END_MASTER() has been found and replaced with
2059      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2060      preprocessors
2061    o re-arrange diagnostics pkg initialisation:
2062     - allow each package to extend the available diagnostics list
2063     - add some checking and fix small problems (multi-threaded, ...)
2064     - new S/R diagnostics_fill (replace fill_diagnostics):
2065       look through the short list of active diag. (instead of the long list)
2066       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2067    
2068    checkpoint57a_post
2069    o this set of changes restores TAMC compatibility
2070      tested for global_ocean.90x40x15 adjoint on trough
2071      (what a pain)
2072    
2073    checkpoint57a_pre
2074    o some modifs in tools/build_options for sunos
2075    o call ctrl_pack for ctrl at end for optimcycle=0
2076    
2077    checkpoint57
2078    o add horizontal bi-harmonic viscosity for vertical velocity
2079      - new parameter viscA4W (defaults to viscA4)
2080      - affects only non-hydrostatic code
2081      - to be done: no-slip lateral boundary conditions
2082    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2083    o implement Implicit Vertical advection for pTracers
2084    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2085      (implemented also for implicit vertical diffusion & advection)
2086    o OBCS: extend application of tracer open boundary conditions
2087      to a strip beyond the boundary of width Olx/Oly
2088    o add call monitor to TAF set of required calls (flow directives)
2089      and include in natl_box_adjoint
2090    o untangle a few ifdefs related to cost, ctrl, autodiff
2091      untangel a few ALLOW_ECCO_OPTIMIZATION
2092    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2093      (theta2, salt2 in ecco_cost_weights)
2094    
2095    checkpoint56c_post
2096    o OBCS as control variables
2097      - update ctrl_ad_diff.list, obcs_ad_diff.list
2098      - remove balance of obcs controls from default
2099      - fix index bug nobcs in ctrl_init
2100      - fix dummy fields filen in ctrl_pack
2101      - add dummy weights for obcs
2102    o lsopt: comment out fort.94 output
2103    o optim:
2104      - remove unnecessary header files
2105      - adjusted namelists
2106      - add xerbla.F to Makefile
2107    o exf:
2108      - multiple modifications of exf_check_range
2109      - unit change in exf_init_runoff from [m/year] to [m/s]
2110    o mdsio:
2111      - i/o-vector change debugLevel from debLevA to debLevB
2112    
2113    checkpoint56b_post
2114    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2115      is called from DO_THE_MODEL_IO
2116      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2117      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2118      - clean up PTRACERS_WRITE_TIMEAVE a little
2119    o add another verification experiment that tests both the cfc-pkg and
2120      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2121      reactive tendencies treated inline with regular timestepping
2122    o testreport previously did a lousy job of comparing small numbers, so
2123      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2124      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2125      testreport.
2126    o ptracers_monitor: bug fix for MPI
2127    
2128    checkpoint56a_post
2129    o GCHEM: finish reorganizating the package
2130      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2131        (introduces another 3D-array for each passive tracer, but only if
2132        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2133        gchemTendency is not needed because the timestep is done separately)
2134      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2135      - GCHEM is now---more or less cleanly---separate from PTRACERS
2136      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2137        so clear to me how that should be done in a general way.
2138    o CFC: improve formatting of output in CFC_ATMOS
2139    o PTRACERS:
2140      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2141        that ALL experiments with ptracers enable can be checked. This makes
2142        GCHEM_MONITOR obsolete.
2143      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2144        monitorFreq
2145      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2146    o add PTRACERS (PTR0[1-5]) to testreport output
2147    o exf_check_range:
2148      * default changed to .TRUE.
2149      * will check values for niter0 if debLevA, every timestep if debLevB
2150      * STOP in exf_check_range if 'out of range'
2151      * range chosen generous to allow for potential extema
2152      TBD: a version with stricter range
2153           permitted range would be runtime parameters
2154  o GMredi:  o GMredi:
2155    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2156    - 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 2159  o GCHEM:
2159    - 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
2160      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2161    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2162      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2163        this flag is now only visible within GCHEM-pkg routines.
2164      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2165        be replaced by a 3D array that is computed before thermodynamics; for
2166        this, the tracer ID iTracer had to be included into the parameter list
2167        of ptracers_forcing
2168      - set up forward_step to call gchem_forcing, that will replace
2169        gchem_forcing_int in ptracers_forcing
2170      - cleaning up
2171  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
2172    
2173  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2386  o add two new packages
2386    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2387    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2388      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2389      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2390  o add offline package  o add offline package
2391  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2392    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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