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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1075 by mlosch, Tue Mar 3 14:07:45 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
8  o moved ptracer ctrl index 17 -> 32    time in seconds as promised by the usints in seaice_monitor and exf_monitor
9    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
10      that are not cubed-sphere grids
11    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
12    o pkg/ctrl:
13      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
14    o non-hydrostatic (calc_gw.F):
15      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
16      update output of exp. global_ocean.cs32x15.viscA4
17    o remove backward compatibility for thetaMin,phiMin
18      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
19    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
20      interpolated wind field not only for curvilineargrid=.true., but also
21      for a rotated grid (rotateGrid=.true.)
22    o pkg/exf: add capability to bypass interpolation for runoff
23      by setting yet another CPP-flag
24    o eesupp/src, B-grid exchange:
25      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
26    o autodiff
27      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
28      allows to switch to single-prec common blocks;
29      corresponding switch occurs in tamc.h, integer isbyte
30      TAF store directivs "byte" and "kind" seem equivalent;
31      Most tamc.h have been updated correspondingly.
32    
33    checkpoint61i
34    o autodiff:
35      fix autodiff_sore/_restore indices for obcs
36      (spotted by I. Hoteit, M. Mazloff)
37    o pkg/autodiff, pkg/ctrl:
38      Add flag to reduce all tapelev I/O to single-prec.
39      In data.ctrl set
40        doSinglePrecTapelev = .TRUE.
41    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
42      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
43    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
44      real fresh water flux (not yet)
45    o pkg/mdsio & rw:
46     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
47     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
48    o pkg/flt:
49     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
50       init_fixed & ini_varia.
51     - clean-up & simplify linear interpolation S/R:
52       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
53     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
54     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
55     - add vert. coordinate & horiz. indices to output files.
56     - change vertical position in initial condition, from index to depth [m].
57     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
58       (easier to get to a curvilinear grid) ; delX,delY no longer used.
59    o pkg/ggl90: a few modifications:
60     - fix bottom boundary condition, and interpolation of KappaE
61       near top and bottom
62     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
63     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
64     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
65    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
66      (maintain temporary backward compatibility, until next checkpoint)
67    
68    checkpoint61h
69    o pkg/diagnostics with "periodic averaging diagnostics":
70      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
71    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
72    o pkg/obcs: fix loop ranges for balancing code
73    o pkg/flt:
74     - improve criteria for finding which tile owns a float.
75     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
76    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
77      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
78      with ocean biogeo)
79    o pkg/flt:
80     - do some cleaning and fix the restart ;
81     - add output.txt in flt_example/results to get this pkg tested.
82    o genmake2: add an EXTENDED_SRC option and flag.
83       for now, cannot be turned on on command line (only through genmake_local)
84    o pkg/mdsio: read/write vector:
85     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
86     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
87       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
88     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
89      (drop to 4 digits matching for grad). But this test does not look very
90      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
91    
92    checkpoint61g
93    o pkg/flt:
94      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
95       + make OPTIONS file more standard.
96      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
97      - fix _BYTESWAPIO CPP-Flag
98      - standard reading of file-parameter "data.flt"
99      - fix argument list of S/R FLT_RESTART
100      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
101    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
102    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
103      a still unfixed compiler/optimization bug
104    
105    checkpoint61f
106    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
107      update results of global_ocean.cs32x15.icedyn test.
108    o move getcon.F from model/src to pkg/fizhi.
109    o pkg/exf: add parameter for extrapolation of temp up to the surface
110       and option to prevent negative evap (in bulk_largeyeager04 only).
111    o Prather Advection scheme: fix tracer conservation for divergent flow
112      (e.g., when using NonLin Free-Surface).
113    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
114    o gmredi (Visbeck-variable-K):
115     - add more parameters to Visbeck-variable-K.
116     - use a 5 points average for dSigmaR in Visbeck-K calculation
117       (more "homogenous": same stencil and same weights as in dSigmaH)
118     - update output of ideal_2D_oce experiment.
119    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
120      (#undef REAL4_IS_SLOW)
121     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
122       coordinate variable
123     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
124       (surface forcing fields), removes some of the functionality
125     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
126     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
127       probably not all: copy _RS surface flux fields to RL field before
128       calling DIAGNOSTICS_FILL
129     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
130       real*4 (CALL EXCH_*_RS) versions.
131     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
132       (generate new output).
133    
134    checkpoint61e
135    o gmredi (Visbeck-variable-K):
136      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
137      - change computation of Visbeck-K where Slope > Smax :        
138        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
139        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
140    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
141      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
142    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
143    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
144      does not become too large (to avoid precision problems in implicit-diffusion
145      solver); update ideal_2D_oce output.
146    o pkg ggl90:
147      - in ggl90_cal.F: compute only one set of visc/diff, used to
148        step forward TKE/T/S/momentum
149      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
150        have Prandlt =1)
151    o gmredi (fm07):
152      - add lower limit on Transition layer thickness + lower limit on 1/lambda
153      - allow to set few more params from data.gmredi
154    o pkg ggl90:
155          - add missing sqrt(2) factor in computation of mixing length
156            scale in ggl90_calc.F
157            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
158    
159    checkpoint61d
160    o adjoint modifs
161      - adapt to new field rhoInSitu
162      - allow to revert from StoreDynVars2D, StoreDynVars3D
163        to individual fields
164        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
165    o store 3-D (in-situ) density in commom block (DYNVARS.h)
166     - save 1 rho computation.
167     - no longer modify T & S inland when using down_slope pkg.
168    o gad_som : allow to switch to SOM advection for T & S without corresponding
169      pickup files (using new S/R: MDS_CHECK4FILE).
170    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
171      (for useSingleCpuIO to work in multi-threaded)
172    o pkg/shelfice:
173     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
174       with SHELFICEtopoFile in data.shelfice
175     - move code for reading ice shelf topography and modifying hFacC into separate
176       subroutines of the shelfice package
177     - separate initialisation of "fixed" and "variable" variables
178     - kTopC is not (yet) replaced by kSurfC, although this is possible
179    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
180    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
181      and rename:
182      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
183      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
184    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
185    
186    checkpoint61c
187    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
188      to add mass source/sink of fluid in the interior (3-D generalisation
189      of oceanic real-fresh water flux).
190    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
191    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
192    o new pkg: down_slope
193      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
194      - presently, modify T & S inland (dwnslp_calc_rho.F).
195        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
196      - implementation for ocean in P-coords not tested.
197      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
198    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
199      (to facilitate conversion of oceanic pkg to p-coordinate).
200    o change FIND_RHO to FIND_RHO_2D :
201      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
202    o new pkg: cheapaml
203    
204    checkpoint61b
205    o exch2:
206      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
207      - no longer depend on the order sequence (N,S,E,W).
208      - 3rd exchange no longer needed (tested with 24 tiles).
209      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
210      - exch_UV_A-grid readily available (but not yet tested).
211      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
212      (both are no longer needed) in exch_uv: no effect in forward run; but
213       get truncation error differences with adjoint exch.
214    o exch2:
215     - change index-bounds storage (moved from target to local tile,
216       more intuitive this way) ; rename/remove some variables.
217     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
218    
219    checkpoint61a
220    o exch2/matlab-topology-generator:
221      fix bug in index bounds for N-S internal exchange (hard to tell if this
222      had any effect on the solution).
223    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
224      is exceeded
225    o testreport: modify syntax of awk, so that it works also with
226      awk, and not only with nawk and gawk
227    
228    checkpoint61
229    o autodiff
230      Change default for TAF usage by removing argument '-nonew_arg'
231      This changes TAF subroutine argument list (ordering of active var.)
232      Omission of this flag leads to incompatibility w.r.t. TAMC
233      To restore TAMC-compatibility, need following modifs:
234      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
235      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
236      Tested TAF version is 1.9.22
237      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
238    
239    checkpoint60
240    --->>> This is the last checkpoint for which generating the adjoint
241    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
242    --->>> by default.
243    --->>> Future checkpoints will ommit this flag by default.
244    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
245    o pkg/grdchk: Add gradient check to etan0 perturbations.
246    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
247    o pkg/autodiff: more flexibility in zeroadj.
248      model/src: modifying do_oceanic_phys.F accordingly.
249    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
250    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
251      special setup of gmredi for which the adjoint is stable
252      enough for parameter optimization.
253    o bridging the gap between eddy stress and GM.
254      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
255          along with a change in CPP option (now ALLOW_EDDYPSI).
256      -> when using GM w/ GM_AdvForm:
257          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
258          is applied either in the tracer Eq. or in momentum Eq.
259          depending on data.gmredi (intro. GM_InMomAsStress).
260      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
261      The key modifications are in model/src/taueddy_external_forcing.F
262      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
263    
264    checkpoint59r
265    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
266      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
267      fix option to read coriolis(@ cell-corner) from files with CS-grid.
268    o pkg/mnc: add some attributes to standard 1D-coordinate variables
269    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
270      mass points, when using mnc for output
271      - add runtime parameter (missing_value, missing_value_int) to override
272        default (which is the value of getcon('UNDEF'))
273    o pkg/mnc: prepare mnc for the actual use of missing values with the
274      diagnostics package: small fix in mnc_cw_readwrite.template and more
275      initialisation of never used fields
276      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
277      versions
278    o pkg/thsice/thsice_ini_vars.F added default initial values so that
279      thermodynamics sea ice solver does not blow up when some initial fields
280      are missing.
281    o move from external_forcing_surf.F to ini_forcing.F
282      the p-coord. hack consisting in using pLoad to set phi0surf ;
283      update output of tutorial_global_oce_in_p (affected @ truncation level).
284    o Freshen up a bit hs94.1x64x5, notably:
285      remove rotationPeriod and tRef=5*0. (adjoint only), and add
286      exactConserv=.TRUE.
287    o pkg/generic_advdiff:
288      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
289      applies to files where Temperature & Salinity 2nd Order moments are used.
290    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
291      this uses a dynamically allocated internal state data structure
292      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
293      and requires a fortran 90 compiler
294    
295    checkpoint59q
296    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
297       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
298    o Refresh tutorial_global_oce_biogeo, notably:
299      - change bathymetry (put back seamounts in ACC, use hFacs)
300      - change EOS (POLY3 --> JMD95Z)
301      - use Bryan-Lewis vertical diffusivity
302      - use multidimensional advection
303      - remove old virtual virtual in dic pkg, now done through ptracer pkg
304      - change a couple of parameters in dic pkg
305    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
306    o pkg/obcs: change default to OBCSfixTopo = .true.,
307      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
308      - replace "debugMode" with "debugLevel .GE. debLevB"
309    o implementation of TAF directives for gchem,cfc,dic
310    o remove "exp5" (replaced by tutorial_deep_convection).
311    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
312      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
313      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
314      --> changes results in exp4, seaice_obcs
315    o tutorial_deep_convection :
316      update the set-up and increase resolution and domain size ; start
317      from pseudo initial conditions = output at t=120mn in order to see
318      something happening when running testreport.
319    o pkg/seaice: add os7mp as an advection scheme
320                  add check for advection schemes
321                  add a flag for restoring T and S underneath sea ice
322    o pkg/my82: add netcdf-support and diagnostics
323    o thsice pkg:
324      - Now hsMax limits snow height by turning it into ice following
325        flooding scheme (and now conserving energy)
326      - Slight rewriting of the formula in thsice_calc_thick.F
327      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
328      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
329    
330    checkpoint59p
331    o gchem / dic / cfc :
332      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
333      - add new parameter files: "data.dic" & "data.cfc" ;
334      - various re-arrangement in initialisation & header file ;
335      - fix tutorial_global_oce_biogeo for multi-threaded test.
336    o pkg/dic: test for "pickup_dic" file when restarting ;
337      if no pickup-file, can restart with a re-initialised pH (same as it did
338      before) providing pickupStrictlyMatch is set to False.
339    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
340      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
341    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
342      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
343    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
344     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
345       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
346    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
347       scheme to use for vorticty-term ;
348     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
349       (with default selectVortScheme, return to original discretisation)
350     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
351    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
352    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
353      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
354      also fix diagnostics VISCAHW & VISCA4W.
355    
356    checkpoint59o
357    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
358    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
359      move a few statemens out the main loop into separate loops
360    o pkg/shelfice:
361      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
362        (kg/m^2/s), does not break tests, because in verification/isomip,
363        rhoConstFresh=rhoConst (by accident)
364      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
365      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
366        new file model/src/seawater.F, so that they are available for all pkgs.
367      - convert potential temperature into in-situ temperature. This changes the
368        isomip tests => update tests
369    o add a flag writePickupAtEnd (default=true) to be able to suppress
370      writing a pickup at the last timestep
371    o tools/mpack-1.6 :
372      - disable automake (not working) and autoconf (not needed).
373      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
374        also cleaner with much less compilation warnings.
375    o pkg/profiles:
376      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
377      (for "less than 32 characters name" compiler requirement)
378    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
379      conditions that have a different sampling frequency than S/T/U/V obcs
380    o pkg/diagnostics (stats-diags):
381      - fix global Min/Max in case 1 processor get only empty tiles
382    o genmake2: replace (4 times)
383         make genmake_tc_1.o >> genmake_warnings 2>&1
384      with
385         COMM="$CC $CFLAGS -c genmake_tc_1.c"
386         echo $COMM >> genmake_warnings
387         $COMM >> genmake_warnings 2>&1
388      to make genmake2 always see the value of CC as specified in the optfile.
389    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
390      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
391      - modify verification advect_cs test to test SOM-advection on CS-grid.
392    o pkg/ctrl:
393      - Rewrite of ctrl_map_ini_ecco.F,
394        introducing a generic routine (ctrl_map_ini_gen.F).
395      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
396    
397    checkpoint59n
398    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
399      number in dedicate array "hdiag":
400      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
401        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
402      - many small changes (integer format) for large number of diagnostics
403      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
404        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
405    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
406      usingSphericalGrid, this allows to define the rotated grid coordinates
407      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
408      geographical coordinates according to the inverse of the rotation defined
409      by the Euler angles, so that Coriolis parameter and online-interpolation by
410      exf works with the geographical coordinates on XC/YC/XG/YG.
411      Naturally, this feature does not work with all packages, so some
412      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
413      profiles), because there the coordinates are assumed to be regular
414      spherical grid coordinates.
415    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
416      - introduce isopycnal diffusion coefficient control.
417    o tools/adjoint_options:
418      - additional control vector components.
419    o pkg/mnc: have mnc create marginally meaning full coordinate variables
420      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
421    o pkg/mypackage:
422      - add example of read/write pickup for state-var ;
423      - add entry points to the main code for state-vars diags & write-pickup.
424    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
425      transitions for useExfYearlyFields
426      - add new subroutine that determines the file to read from for
427        use*YearlyFields = .TRUE. and .FALSE.
428      - add a verification experiment to global_with_exf that tests
429        useExfYearlyFields with USE_EXF_INTERPOLATION defined
430    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
431      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
432      subroutines (which could be generated from a template, because they are
433      almost identical), for now they are included in obcs_prescribe_read.F for
434      simplicity
435    o pkg/exf:
436      - add a little more diagnostic to exf_interp_read (in analogy to
437        mds_read_field, can be turned off with debugLevel < debugLevA=1)
438      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
439        ugly but fast by unrolling short inner loops, inserting a unroll=8
440        directive in routine lagran, and splitting a loop and making do while the
441        outermost loop (the latter requires the intoduction of index arrays)
442    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
443    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
444      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
445    o verification/seaice_obcs: updated for restart test and latest options
446    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
447      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
448      for now this is only available for the C-grid code and also within
449      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
450    
451    checkpoint59m
452    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
453      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
454    o gad_som : fix flux output (& diagnostics) to have same units as other  
455      advection scheme fluxes (was previously multiplied by deltaT).  
456    o added verification/seaice_obcs both to test seaice open boundaries
457      and to provide an example matlab scrpt for generating them
458    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
459    o pkg/salt_plume: clean up salt_plume_frac.F to
460      remove redundancy in PlumeMethod 1 and 4
461    o pkg/kpp: added saltplume diagnostics
462    o pkg/obcs and pkg/seaice:
463      - do not set uice and vice to zero when OB*icefile are unspecified
464      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
465      - moved seaice tracer obcs after call to seaice_growth
466    o pkg/salt_plume: added various options for salt plume depth
467      criterion and for vertical distribution of the salt
468    
469    checkpoint59l
470    o pkg/ptracers: new version of ptracers pickup:
471      read meta file and write only fields which are needed to restart.
472      ( same logic as main pickup file ; also using pickupStrictlyMatch )
473    o pkg/seaice:
474      - add timescale for melting due to warm mixed layer as a means of
475        setting SEAICE_availHeatFrac more conveniently
476      - add a CPP-flag/runtime parameter check for flooding algorithm
477      - reformulated availHeat in seaice_growth.F to be independent of AREA
478    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
479      unit changes
480    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
481    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
482      SX vector computer.
483    o pkg/seaice:
484      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
485        seaice forcing fields can now be read only through pkg/exf
486      - removed some unused halos
487    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
488    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
489      or U/VICE from U/VWIND before computing U/VSTRESS
490    
491    checkpoint59k
492    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
493      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
494    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
495      all experiments pass when compile with un-initialised var. checking option.
496    o added pkg/salt_plume
497    o script to test restart (for now, in MITgcm_contrib/jmc_script)
498    o pkg/seaice: new read/write pickup version.
499      read meta file and write only fields which are needed to restart.
500      ( same logic as main pickup file ; also using pickupStrictlyMatch )
501    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
502    o lab_sea.hb87: modify the domain & update output.hb87.txt :
503      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
504      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
505      process. Fixed here by closing the domain at the Northern boundary.
506    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
507    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
508      a set of consecutive levels in/from a 3-D array.
509    o pkg/ptracers:
510      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
511      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
512    
513    checkpoint59j
514    o in pkgs: dic, obcs, offline, rbcs:
515      standard way to compute coeff. for time interpolation between 2 time reccords
516      which retains full precision (& make results less dependent on compiler).
517      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
518    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
519      packages instead of reading ice cover and wind speed separately
520    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
521     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
522      to allow to compile customized code before the update)
523    o cleaning-up:
524      - fix CPP instruction syntax in pkg/obcs
525      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
526        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
527      - fix some threads issue in IO parts.
528    o pkg/dic:
529      - add tons of "_d 0" (--> much better testreports !)
530       and then update outputs of tutorial_global_oce_biogeo
531    o pkg/mom_fluxform:
532      add a special version of momentum advection intended to conserve momentum
533      next to a bathymetry step or a coastline edge. (default = off = #undef)
534    o new read/write pickup version:
535      - for now, only implemented for main (mdsio) pickup file.
536      - write out only what is needed to restart; merge pickup_nh , pickup_ph
537        and main pickup together.
538      - read meta file; read only what is needed to restart; stop if a field
539        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
540        if it make sense (even if the restart is not perfect).
541      - if no meta file, assume that pickup to read corresponds exactly to
542        a pickup that would currently be written.
543      - read pickup written in the old format (until checkpoint59i) if it
544        recognizes an old meta file (no field-list).
545      - add a meta file in exp. which starts from a pickup: 2 cases:
546        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
547         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
548        b) a meta file describing the content of the associated pickup file
549         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
550    o pkg/mdsio & pkg/rw:
551      - new routine to read a meta file ; new set of routine to read
552        Multiple-fields file (with meta file).
553    o added open boundary conditions capability for seaice
554        HSNOW, HSALT, UICE, and VICE
555    
556    checkpoint59i
557    o adjoint:
558      * fix multiDimAdvection adjoint
559        (partial recomputation problem by TAF for fVerT(:,:,kDown)
560        and comlev1 size definition (maxpass vs. max. number of tracers)
561      * verification/global_ocean.90x45x15 adjoint now tests
562        NLFS and multiDimAdvection using DST3 (=30)
563      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
564    o pkg/kpp: add "_d 0" to real constant (if missing);
565      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
566      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
567    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
568      for internal parameters related to restart process (formerly from PARAMS.h)
569      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
570    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
571      as argument. (only atm2d & obcs write_pickup have not yet been updated)
572    o pkg/monitor:
573      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
574      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
575      - account for deep Atmosphere factor and density factor (anelastic)
576    o added open boundary conditions capability for seaice HEFF and AREA
577    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
578      thermodynamics
579      - requires a little reorganization, which affects the testreport results
580        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
581        so that now the conservative form is tested
582      - add a few comments
583    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
584    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
585    o add new diagnostics to seaice: advective, diffusive fluxes (only for
586      multidim-advection, for scheme 2 they are not filled) and transports,
587      thermodynamic growth rates
588    o change units of EmPmR (inside the code, + within coupling interface)
589      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
590      Affects results @ truncation level (cg2d match) and update output of
591       experiments: lab_sea(6), global_ocean.90x40x15(10),
592      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
593      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
594      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
595      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
596    
597    checkpoint59h
598    o pkg/exf:
599      - improve vectorization by moving if-statement out of loops in
600        exf_mapfields, exf_radiation
601      - exf_bulkformulae.F: introduce 2D fields and vectorize code
602    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
603    o testreport:
604      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
605        monitor & update offline_exf_seaice exp. output.
606      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
607    o pkg/seaice:
608      - bug fix in the evp solver: boundary conditions were affected be
609        masking of zMax/zMin (changes results)
610      - minor bug fix in boundary conditions in seaice_calc_strainrates
611        (changes results for no_slip)
612      - seaice_lsr.F: make interpolation of eta dependent on boundaries
613      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
614      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
615        stress formulation and no-slip boundary conditions
616    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
617      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
618    o pkg/seaice: a first HSALT time stepping equation has been checked in
619    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
620      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
621      without requiring DO-IF statements
622    o pkg/thsice:
623      use continuous power-law function for partition of energy between lateral
624      melting/freezing and thinning/thickening ; old code using step function
625      still available with #undef THSICE_FRACEN_POWERLAW
626      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
627    o testreport: change AD testing : check against results/output_adm.txt
628      using same scripts as for forward test.
629    
630    checkpoint59g
631    o adjoint testing: in preparation for changing testreport:
632      - output format: cost and grad written on separated lines
633      - ad output results in directory "results" (instead of "results_ad")
634    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
635    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
636    o pkg/ecco: allow user defined cost function contributions
637    o testreport:
638      Allow to choose (per experiment) the list of tested output variables
639       and the main variable (used to issue a pass/FAIL ) ;
640      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
641      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
642      Also modify printing of summary:
643       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
644       b) echo the list of tested variables in the individual summary.txt of
645          each experiment.
646    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
647      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
648      (but still depend on the tile decompostion of the domain).
649    o pkg/seaice: change a discretization detail to make the B-grid code
650      "more symmetric". This change is likely to remove all "ridges/leads" that
651      where quasi-aligned with the grid in B-grid solutions. It may also be
652      the solution to the stress coupling issues with the B-grid.
653    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
654      remove .cvsignore from input dir. (since testreport no longer run here).
655    o pkg/thsice:
656     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
657     - fix reshaping of sea-ice just after advection:
658       melt all the ice only if ice-volume is too small.
659     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
660       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
661     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
662    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
663      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
664    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
665      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
666      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
667      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
668      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
669      -> update output.txt
670    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
671     this affects truncation error: -> update output.txt of exp:
672      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
673      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
674    
675    checkpoint59f
676    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
677    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
678      a bounded range (in forward mode)
679    o pkg/ecco, ctrl, autodiff and mom_common:
680     internal parameter controls, completements of implementations
681    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
682    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
683      (not seem any difference in testing results).
684    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
685       at face corners.
686    o pkg/generic_advdiff:
687     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
688      loop range indices for computing vertical advection tendency
689      and do the calculation in the interior only (no overlap) ;
690      for now, only implemented for SOM advection (to save CPU time).
691     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
692    o exch2 adjoint
693      First set of changes:
694      - add exch2 hand-written adjoint templates
695      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
696        This will require cleanup in pkg/autodiff/*.F
697        (changed routines currently kept separate in verif. code/)
698      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
699        that used to hide exch2 or cubed-sphere specific code
700        (commented via 'cph-exch2')
701    o pkg/seaice
702      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
703    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
704       output of global_ocean.cs32x15.thsice .
705    
706    checkpoint59e
707    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
708      for B-grid vector (not yet tested) and C-grid vector (<- only used
709      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
710    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
711      (#ifdef ALLOW_SALT_PLUME)
712    o gather_2d/scatter_2d: removed halo regions
713    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
714      scheme and the corresponding test case (under front_relax dir). For now,
715      only available with Skew-flux form and not yet tested in realistic set-up.
716      adjoint: store directives updated, but gradient checks deteriorated,
717      so maybe GM/Redi adjoint is now broken.
718    o seaice adjoint
719      * add AREA, HEFF, HSNOW as control variable
720        (should not change lab_sea results)
721      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
722    o pkg/seaice:
723      * added computation of saltFlux in seaice_growth;
724        For time being, sea ice salinity is assumed constant
725        contribution of snow flooding to freshening of sea ice is neglected.
726        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
727        defaults to 0.0 in order to maintain backward compatibility.
728        Typical values for SEAICE_salinity are 4 to 10 g/kg.
729      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
730      * added SEAICE_availHeatFrac, which specifies fraction of surface level
731        heat content used to melt or grow ice
732      * commented out cap of HICE: it helps keep ice thinner
733      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
734      * applied OBCS T/S mask to HEFFM sea ice mask
735    
736    checkpoint59d
737    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
738     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
739     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
740    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
741     and change default value of parameter "GM_Small_Number";
742     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
743       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
744       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
745    o pkg/ecco: cost function when applying pkg/smooth to controls
746    o pkg/ctrl: add forcingPrecond run time parameter
747    o pkg/seaice:
748     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
749     - fix bug in metric terms of u-equation in LSR solver (implicit part),
750       changes verification/lab_sea
751     - rearrange implicit part of u-equation in LSR solver to make it easier to
752       read, understand, and debug. This causes changes at the truncation level.
753     - fix (serious) bug in the boundary conditions (sign error in the implicit
754       part) of the LSR solver. Changes all LSR results.
755     - fixed problem with HSNOW initialization to avoid thick snow when AREA
756       is initilized with small values - does not change lab_sea results.
757     - added HsnowFile initialization capability
758    o pkg/smooth: addition to model/src and pkg/ctrl so allow
759     initialization of pkg/smooth and application to control vector
760    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
761    o dependencies: pkg/profiles requires pkg/cal
762    o pkg/profiles:
763     - added option ALLOW_PROFILES_GENERICGRID
764         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
765         that interpolation information (grid points and coefficients) is provided
766         within the netcdf input files.
767         -> sample matlab scripts can be found in MITgcm_contrib/gael
768         that allow you to prepare netcdf input files.
769     - also modified: cleaner include statements, cleaner error print statements,
770       cleaner stops when error, and more tests of the netcdf input files consistency.
771    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
772    o pkg/seaice:
773     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
774       requires a new routine: seaice_diagnostics_fill.F
775     - make sure that seaice does not move if not forced (pressure replacement
776       method, Hibler and Ip, 1995), changes results
777     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
778     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
779       It is turned off by default (=-1.), because it changes the results.
780     - make it possible to read AREA from a file, too.
781    
782    checkpoint59c
783    o add S/R and diagnostics for oceanic mixed-layer depth
784    o move GMRedi call after all vertical mixing schemes (including KPP)
785    o pkg/thsice:
786     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
787      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
788    o pkg/obcs:
789     - bug fix for balance code
790    o pkg/seaice:
791      - allow values of SEAICE_elasticParm > 1
792      - add new parameter SEAICE_evpTauRelax as an alternative
793        to SEAICE_elasticParm
794      - make lsr boundary conditions free slip (by default), changes result
795      - add code for no slip boundary conditions for lsr
796      - set minimum of zeta to zero (and not 4e8) (changes results)
797      - add a cap on AREA after advecting AREA if seaice_growth is not called
798    o change calculation of Visbeck K:
799      - no longer depend on tapering scheme; instead, compute slope (limited
800        by GM_maxSlope). this is equivalent to what was comuted before with
801        clipping or linear tappering.
802      - fix vertical averaging (wrong by 1/2 level)
803      - leave the old version (but will not be maintained) within
804        #ifdef OLD_VISBECK_CALC / #endif
805      - update output of exp. ideal_2D_oce
806    o change error catch in calc_r_star to improve vectorization
807    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
808      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
809    o adjoint:
810      Re-organized adjoint checkpointing according to Matt Mazloff
811      (but with modifs/completions/cleanups)
812      Storing is now bundled into large arrays to optimized I/O
813      (and second step in cleanup of the_main_loop)
814    
815    checkpoint59b
816    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
817      - export/import (between ocean & coupler) fields needed for ocean DIC.
818    o pkg/seaice:
819      - get rid of three more exchanges seaice_calc_viscosities (required
820        different loop boundaries in seaice_lsr and seaice_ocean_stress)
821      - bug fix in seaice_ocean_stress (update of lab_sea required)
822      - reduce loop boundaries to necessary minimum also in seaice_evp
823      - go back to the old way of computing deltaC/Z as the adjoint likes that
824        better
825    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
826      passive tracer to an Age Tracer) + update output.txt
827    o pkg/exf:
828      - implement A-grid / C-grid selection for wind-stress input files.
829      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
830      for now, in exf_bulk_largeyeager04.F only :
831      - change implementation for case where windspeed + 2. components wind-stress
832        are read-in. AND use rhoConstFresh to convert evap.
833    o pkg/seaice:
834      - use correct EXCH_UV for wind-forcing (on A-grid).
835      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
836        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
837    o pkg/exf:
838      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
839      EXF_INTERPOLATION:
840      - merge global_with_exf/code version of exf_interp_read.F
841        to the main code ;
842      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
843        reading the file ; Important: This options needs to be defined to recover
844        previous code.
845        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
846      - no longer loose real*8 precision along the way when using exf_iprec=64.
847    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
848      - change discretisation of evp-solver in order to avoid another exchange
849        (changes lab_sea) and clean up a little
850      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
851        help the adjoint (this also changes the results slightly)
852      - add a few "_d 0" where they had been missing in seaice_evp.F
853      - cleaning up: remove unused seaice_calc_rhs.F
854    o pkg/exf: some cleaning-up:
855      - change various "constants" into runtime parameters
856      - cleaned-up Large&Yeager04 routine which should eventually
857        replace exf_bulkformulae.F (changed names of S/R and CPP)
858        and merged various ALLOW_ATM_WIND options
859     only used with thsice pkg (in thsice_get_exf.F):
860      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
861        which are used when useStabilityFct_overIce=TRUE (= the default)
862      - change default values of ice & snow emissivity and scale downward LW
863        by ice & snow emissivity.
864    o pkg/thsice:
865     fix few little problems, in thsice_calc_thickn.F:
866      - growth vertically (and not laterally) if iceFrac == iceMaskMax
867      - melt only laterally if hIce < hThinIce (as the comments say)
868      and in thsice_extend.F:
869      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
870      - start to form ice as soon as the minimum ice-volume is reachable.
871     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
872      and cpl_aim+ocn
873    o pkg/kpp
874     - move computation of surface related input fields to KPP into a new
875       subroutine kpp_forcing_surf.F
876     - remove wrong (within bi,bj loops) EXCH calls.
877     - little cleaning (add argument myThid in last position, cvs header ...)
878     - for now, fix conservation problem by exchanging KPPviscAz (may not
879       be the best fix)
880    o pkg/seaice
881     - check for inconsistent evp parameter/cpp-flag combination
882     - remove leftover errIO flat for obsolete name list error handling
883    o OpenAD
884     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
885    
886    checkpoint59a
887    o pkg/seaice: some parameter clarifications and a little bit of clean up
888    o pkg/thsice: rename run-time parameters:
889       himin       -> hIceMin
890       himin0      -> hThinIce
891       hihig       -> hThickIce
892       i0          -> i0swFrac
893       transCoef   -> bMeltCoef
894       frac_energy -> fracMelting
895      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
896       with default values (for now) that do not change the results.
897      remove old version of thsice vars advection in pkg/seaice.
898    o in FFIELDS.h:
899      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
900      - make pLoad & sIceLoad always available (but still only used if
901         ATMOSPHERIC_LOADING is #define).
902    o pkg/kpp: replaced _KPP_RL with _RL
903    o bug fixes for vertical diffusivity computations when both KPP and
904        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
905        are no longer updating the vertical diffusivity array
906        (passed as argument) but are (re-) setting those arrays.
907    o pkg/seaice: fix bug in evp solver, while doing that
908      - change (improve?) discretization of stress computations for both
909        cgrid-lsr and evp solver
910      - add a new routine to compute strain rates
911      - the above changes lab_sea results
912      - add no slip conditions for evp solver (off by default), lsr-version
913        may follow
914      - fix exchange for shear at Z-points (does not change lab_sea)
915      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
916        (to force the user to pick a time step since there is not "safe" way
917        of choosing it)
918      - add principal stress diagnostics
919      - rearrange fields for evp a little to avoid having to call a: too many
920        exchanges and b: exchanges for stress trensor components which we do
921        not have.
922      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
923        of evp, complete rewrite for lsr case (latter is does not yet work
924        in all cases)
925    o pkg/kpp: add code to have mixing in shelf ice caverns
926      - add myThid to all kpp routines (long overdue)
927    
928    checkpoint59
929    o pkg/exf:
930      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
931        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
932      - move exf header files from lower_case.h to UPPER_CASE.h ;
933        add missing cvs Header & Name
934      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
935      - add namelist param. selectStressGridPosition, exf_monFreq
936      - retire many _CLIM routines, and remove data.exf_clim
937        + params moved to data.exf
938        + climsst, climsss now handled by exf_set_gen, i.e.
939          climss?period=0 refers to constant field,
940          climss?period=-12 to monthly forcing
941      - split up namelists in data.exf
942    o pkg/seaice:
943      - remove seaice_exch and seaice_exch_uv
944      - remove superfluous exchange of theta
945      - add myThid to seaice_budget_ocean/ice
946      - add new interface for atmospheric wind forcing (C-grid only)
947        + new routine
948        + two new field (taux, tauy for stress over ice)
949        + removed one global field (DAIRN) for C-grid case only
950    o pkg/thsise
951      - 2nd set of modifs for thsice adjoint in conjunction with exf
952    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
953    
954    checkpoint58y_post
955    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
956      vertical diffusivity, similar to that in MOM4; turned on using
957      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
958      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
959    o Added capability for 3D specification of background vertical diffusion
960      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
961      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
962      "data" file that contains the 3D vertical diffusivity coefficients.
963    o ice dynamics (pkg/seaice) with thsice thermodynamics:
964      - add code within pkg thsice to advect & diffuse sea-ice fields
965      similar to (and will replace) what has been added in  seaice_advdiff.F,
966      but: - conserving Mass, Heat & Salt.
967           - better when using non-linear advection scheme (not yet fully tested)
968           - can also be used in atmospheric set-up (for now, only the diffusion).
969    
970    checkpoint58x_post
971    o IO option for global-file compact format:
972      - add options when generating topology (utils/exch2/matlab-topology-generator)
973      - add I/O capability (pkg/mdsio).
974      - adapt utils/matlab/rdmds.m to read this format.
975      for now long-line format not yet supported by pkg/mdsio (& exch2).
976    o shelfice: add a few diagnostics
977    
978    checkpoint58w_post
979    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
980      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
981      (and replace horiVertRatio in NH code).
982      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
983                         and tutorial_plume_on_slope (sensitive to truncation)
984    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
985      directly to drive seaice model (C-grid only)
986    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
987     - reintroduce computation of wind from stress,
988     - compute tau (in exf_bulkformulae.F) from windstress averaged to
989       mass points to avoid tau = 0
990     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
991    o rdmnc.m: make it work with "global" files created with gluemnc
992    o rdmnc.m : some improvements in dealing with singleton dimension
993      (tested on all testreport mnc output files).
994    o genmake2: disable pkg/profiles if netcdf test fails.
995    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
996    o move call to cal_readparms up to make calendar parameters/variable available
997      to all packages
998    
999    checkpoint58v_post
1000    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1001      useDynP_inEos_Zc tested.
1002    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1003    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1004      and portions thereof.  See read_cs.txt for description and examples.
1005    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1006      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1007      following the great-circle arc between those 2 points.
1008    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1009      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1010    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1011     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1012     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1013     - still needs work (not working with some options ; efficiency to improve)
1014       and serious testing.
1015     - use this scheme for temperature & salinity in 2 advection test exp.:
1016       advect_xy & advect_xz, respectively.
1017    
1018    checkpoint58u_post
1019    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1020    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1021    o testreport: add option "-skipdir" to skip some test.
1022    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1023      momentum calculation.
1024    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1025    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1026      remove checkpoint.F and the_correction_step.F (no longer used);
1027      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1028    o add option (linFSConserveTr) to correct for tracer source/sink due to
1029      Linear Free surface
1030    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1031    o pkg/thsice: fix reading mnc-pickups
1032    
1033    checkpoint58t_post
1034    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1035    o pkg/mdsio:
1036     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1037       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1038       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1039     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1040     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1041       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1042     - new S/R (to replace MDSWRITEMETA), which allows to write more
1043       informations (variable names, time ...) to meta files.
1044     - modify rdmds.m to give back the meta file content.
1045    o pkg/diagnostics: change vertical interpolation to be safer, and more
1046       flexible (define p-levels to interpolate to in data.diagnostics);
1047      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1048       diagnostic pointer.
1049    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1050    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1051    o fix multi-category seaice:
1052     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1053       SEAICE_MULTICATEGORY
1054     - fix short wave heat flux
1055    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1056       and allow to use EVP solver. Change forward lab_sea: test both EVP
1057       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1058    o Initial check-in of lab_sea adjoint
1059      (very similar to natl_box_adjoint/code_seaice)
1060      * used C-grid and EVP solver
1061      * used KPP, GM/Redi
1062      * uses inAdExact=.TRUE.
1063      * gradient checks fail for both ADM and TLM
1064        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1065        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1066        issue is related to forward mismatch between g77 an ifort
1067    o pkg/seaice: overhaul of thermodynamics
1068     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1069     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1070     - move a few global fields out of SEAICE.h into seaice_growth.F and
1071       make them 2D (FICE/QNETO/ ...)
1072     - remove FO (it is the same as QNETO)
1073     - introduce a few local fields to avoid modifying external fields such
1074       as atemp, etc.
1075    
1076    checkpoint58s_post
1077    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1078      changed exf_set_gen.F so that
1079        genperiod=0 means input file is one time-constant field and
1080        genperiod=-12 means input file contains 12 monthly means
1081    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1082      this affects truncation error ; generate new output file for exp. which
1083      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1084        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1085        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1086        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1087        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1088        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1089    o start implementation of deep-atmosphere and anelastic formulation
1090    o verification: remove 2nd copy of input files and use script "prepare_run"
1091      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1092    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1093    o profiles: fix for multithreaded case
1094    
1095    o diagnostics: rename few diags:
1096      s/'PRESSURE'/'RCENTER '/g
1097      s/'TICE    '/'oceFreez'/g
1098      s/'TAUX    '/'oceTAUX '/g
1099      s/'TAUY    '/'oceTAUY '/g
1100      s/'SWFLUX  '/'oceQsw  '/g
1101      s/DIFx/DFxE/g
1102      s/DIFy/DFyE/g
1103      and add few ocean-forcing diagnostics:
1104      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1105    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1106      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1107      as actual snow thickness.  It now refers everywhere to effective snow
1108      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1109    
1110    checkpoint58r_post
1111    o modifications to pkg/seaice/growth.F, which change results of
1112      lab_sea experiment: fixes pertain to melting snow over open water, to
1113      masking EVAP under sea ice, and to using the correct AREA variable for
1114      computations of EVAP, PRECIP, HSNOW, and GHEFF
1115    o add ability to read bathy, salt, and theta using MNC (off by def)
1116    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1117      both are turned off by default and do no change any results
1118    o seaice advection with pkg/thsice: a step toward the use of non-linear
1119      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1120    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1121      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1122      in natl_box (affects results @ truncation level: update output.txt)
1123    o multi-threading and IO:
1124      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1125      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1126        (needed to work with SingleCpuIO): tested in all verif. exp.
1127    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1128      affects the results (but none of the verification test uses this scheme).
1129    o Adding some pkg/diagnostics capability to pkg/seaice
1130      (will certainly be subject to changes)
1131    o ctrl: adding new control variables:
1132      lwflux, lwdown, evap, snowprecip, apressure, runoff
1133    
1134    checkpoint58q_post
1135    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1136      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1137      high_res_cube configuration by 4% on Columbia.
1138    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1139      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1140      dynamical allocation (seems to work in multi-threaded).
1141    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1142      single CPU io) so that TAF does not have to see EESUPPORT.h
1143    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1144    
1145    checkpoint58p_post
1146    o obcs: stop if obcs is used with useCDscheme = .true.
1147    o shelfice:
1148     - fix a sign error so that no slip at shelfice interface works
1149     - remove stop for combination non-hydrostatic code and shelfice. That does
1150       not mean, that the results are correct, but at least they are numerically
1151       stable
1152    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1153    o added adjoint exch routined for all exch*3d* routines
1154      and updated flow directives
1155    
1156    checkpoint58o_post
1157    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1158      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1159    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1160      and clean-up reading/writing of pickup files.
1161    o fix local version of read/write pickup (NH part) in rotating_tank/code
1162    o simplify EXCH interface:
1163     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1164     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1165    o added the regrid package
1166    o shelfice:
1167     - add a simple boundary layer scheme to reduce noise
1168     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1169    
1170    checkpoint58n_post
1171    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1172       local variable (not in common block).
1173    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1174      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1175      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1176        to work with SingleCpuIO.
1177    o add "_d 0" to real constant of pkg/cfc subroutines ;
1178       update exp. cfc_exemple & tutorial_cfc_offline output files.
1179    o multi-threading and IO:
1180      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1181        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1182      - barrier before and after reading.
1183      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1184      - avoid using MDS_WRITELOCAL for LAND pkg output.
1185      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1186        common-block variables ; Allows multi-threading with master-thread IO.
1187    o change default MAX_NO_THREADS from 32 to 4 ;
1188      and stop cleanly when MAX_NO_THREADS is too small.
1189    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1190    
1191    checkpoint58m_post
1192    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1193       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1194    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1195       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1196       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1197    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1198        add MITgcm_tutorials (= code + all the tutorials)
1199    o ecco, option to compute cost for total ssh (mean+anom)
1200    o consistent with addition of ptracer and ssh in pkg/profiles
1201    o profiles: adding ptracer and ssh
1202    o testreport: change multi-test output-file name
1203      (from output.txt.{name} to output.{name}.txt)
1204    o profiles: now ok for mutli-tiles case
1205    o seaice: add 4 parameters for different advection schemes for area,
1206      (effective) seaice thickness, enthalphy, and snow height. Their default
1207      is the standard parameter SEAICEadvScheme
1208    o calc_gw:
1209     - add cosFacU in zonal viscous flux (harmonic.visc.).
1210     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1211       of tutorial_plume_on_slope.
1212    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1213    o calc_gw: true flux-form, account for horizontal grid spacing.
1214      update rotating_tank results, but not plume_on_slope (affected at
1215      truncation level, 11 digits).
1216    
1217    checkpoint58l_post
1218    o calc_gw:
1219     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1220     - remove side-drag for now (need to fix it); update plume_on_slope results.
1221     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1222    o commit code to make SST/SSS weights spatially variable
1223      (based on either variable in-situ or variable initial T/S weights)
1224    o pkg/ecco:
1225      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1226        now based on horizontally varying weights wthetaLev, wsaltLev
1227      * cost_averagesflags now returns year indices in addition to day, month
1228      * sflux balance is performed on annual basis
1229        (sflxumm, sfluxmm2, bal_sfluxmm)
1230      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1231        including separate counting and multipliers
1232    o pkg/rbcs
1233      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1234    
1235    checkpoint58k_post
1236    o testreport:
1237     - always build in dir. "build" (if not there, mkdir build instead of building
1238       & running in input)
1239     - run in dir run (if it exists), in build otherwise.
1240     - call prepare_run (if input/prepare_run exists)
1241     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1242    o pkg/exf modifications to interpolation and rotation routines for more
1243       reasonable treatment of North Pole singularity: for tracers North Pole
1244       value is set to northernmost zonal-mean value, for zonal velocity it is
1245       set to zero, and for meridional velocity it is set to northernmost value.
1246    o pkg/exf/exf_check_range.F
1247     - add tile index to diagnostics and move stop statement to the very
1248       end of the routine.
1249    o pkg/diagnostics: (diagnostics_main_init.F)
1250      define title of isomorphic variables according to the current config.
1251    o pkg/thsice with pkg/seaice dynamics:
1252    - fix domain of computation (interior only, required for exf) and do exchanges
1253    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1254    o towards a standard way of dealing with multi-threading in MONITOR
1255      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1256    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1257       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1258    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1259    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1260    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1261       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1262    o tracer advection:
1263     - clean-up and simplify calc_common_factors.F
1264     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1265       advection subroutine (but still not used within DST advection S/R)
1266    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1267    
1268    checkpoint58j_post
1269    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1270      from file (collects calls previously in FORWARD_STEP)
1271    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1272    o adjoint store dir. adjusted accordingly
1273    o genmake2
1274      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1275    
1276    checkpoint58i_post
1277    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1278      on wind stress (SEAICEstressFactor defaults to 1.)
1279    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1280      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1281    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1282      on CS-grid: no longer loosing mass.
1283    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1284    o pkg/ggl90: fix sloppy output and fix a bug
1285    o pkg/seaice: added SEAICEuseEVPpickup parameter
1286      - Set to false in order to start EVP solver with
1287        non-EVP pickup files when using SEAICEuseEVP
1288      - fix sign error in diffusion in seaice_calc_rhs
1289    
1290    checkpoint58h_post
1291    * Modifications for bottom topography control
1292      o replace hFacC by _hFacC at various places
1293      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1294      o add non-self-adjoint cg2d_nsa
1295      o update autodiff support routines
1296      o re-initialise hfac after ctrl_depth_ini
1297      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1298    * Adding verification for 5x5 box (4-layer) bottom topography control
1299    
1300    checkpoint58g_post
1301    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1302       used for mean seasonal cycle, mean diurnal cycle); add an example
1303       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1304    o pkg/ggl90:
1305      - add parameter (minimum surface kinetic energy)
1306      - fix bug (avoiding division by zero)
1307    o couple pkg/thsice to pkg/seaice:
1308      - modify advection in seaice to accomodate new scalar fields to be advected
1309      - only muliDimAdection scheme work with seaice/thsice
1310      - mapping of thsice-variables to seaice-variables, back and forth
1311      - does not break the verification experiments, but does not give the
1312        desired results either
1313    o pkg/seaice
1314      - make (default) second order advection a bit less confusing?
1315    
1316    checkpoint58f_post
1317    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1318      to pkg/seaice):
1319      - new routines thsice_map_exf and thsice_get_exf provide the interface
1320      - add an additional formal parameter to thsice_solve4temp
1321    o pkg/exf:
1322      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1323      - correct Stefan-Boltzmann constant
1324      - new parameter for longwave surface emittance
1325      - separate some stuff from exf_bulkformulae into new routines  
1326        exf_radiation, exf_wind
1327      - add new parameters and constants: longwave emissivity for ocean, ice
1328        and snow, evaporation parameters over ice
1329      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1330        either wind from stress or stress from wind
1331    o pkg/thSIce:
1332    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1333    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1334       and THSICE_CALC_THICKN
1335    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1336    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1337      to make debugging easier.
1338    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1339    o pkg/bulk_force:
1340      - clean-up comments and parameters ;
1341      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1342    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1343      generate new output for test-experiment: aim.5l_cs.thSI
1344    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1345      testreport accordingly
1346    
1347    checkpoint58e_post
1348    o SEAICE_CGRID adjoint done
1349    o R_STAR adjoint implemented.
1350      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1351      * need to sort out init. of h0facc, etc.
1352    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1353      to be able to use it in pure forward.
1354    
1355    checkpoint58d_post
1356    o upgrade simple test-experiment to tutorial example:
1357     step.1: duplicate the experiment and (step.2) will remove the old copy.
1358      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1359      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1360      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1361      tutorial_global_oce_biogeo    <- copy of dic_example
1362      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1363      tutorial_plume_on_slope       <- copy of plume_on_slope
1364      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1365      tutorial_global_oce_optim     <- empty for now (David ?)
1366      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1367     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1368    o correct a sign problem in cost_scat.F
1369    o obcs and ptracers: fix boundary conditions for advections schemes
1370      with larger stencil
1371    o thsice adjoint: start
1372    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1373      completeness
1374    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1375      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1376    o ptracers adjoint:
1377      * avoid extensive recomputatations
1378      * fix missing re-init. of gptr (missed by TAF)
1379    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1380      me to turn off the excessive output to STDOUT that this package produces
1381    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1382      and add those terms in Vector-Invariant formulation.
1383    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1384      if the control period (xx_hfluxperiod etc) is 0
1385    o in profiles pkg, clean routines and fix details
1386    o in ecco pkg, reading ssh data:
1387      fix problem in case the model does not start at iter0=0
1388    o fix mnc-pickup/restart for ptracers
1389    o new package prifiles:
1390      code to compute profile-based cost by Gael Forget
1391      (modifs in ecco, ctrl, autodiff)
1392    o Benign bug fix in initialization (spotted by M. Mazloff) of
1393      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1394    
1395    checkpoint58c_post
1396    o adjoint: finish NLFS adjoint and provide reference output in
1397      verification/global_ocean.90x40x15/results_ad_nlfs
1398    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1399      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1400      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1401      with SEAICE_CGRID defined.
1402    o move calendarDumps from "data" to "data.cal" and clean-up the code
1403      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1404    o add useEXF & useCAL flags (for now, set in hard-coded way)
1405    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1406      (were missing in NH mode, and wrong in quasihydrostatic mode).
1407      waiting for Chris updated version of calc_gw to add those CALLs.
1408    o fix bug in quasihydrostatic S/R ;
1409      add a test for this option: global_ocean.90x40x15.qshyd
1410    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1411      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1412    o add on/off flag useOffLine for package OFFLINE
1413    o seaice:
1414      - modify advection so that it works also on the C-grid
1415      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1416        problem in multi-tile runs with C-grid
1417      - add flags for clipping ice velocities and/or masking solver forcing
1418      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1419        C-grid solver
1420      - added a few comments to seaice_diffusion.F
1421      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1422        are now exclusive)
1423      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1424        required re-ordering the code a little:
1425       + make DAIRN global variable (defined in SEAICE)
1426       + move computation of the viscosities eta and zeta into a new separate
1427         routine (because I need to recompute them in seaice_ocean_stress.F)
1428    
1429    checkpoint58b_post
1430    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1431      update output.txt of exp. aim.5l_cs.thSI
1432    o various mnc cleanups and improvements:
1433      + shrink lookup tables by factor of ~4
1434      + better error reporting when running out of lookup space
1435      + able to handle longer path/file names (up to 500 chars)
1436    o adjoint:
1437      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1438      - TBD: "hidden" mom_vecinv recomp. in dynamics
1439    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1440     (allow to differentiate between forcing components using new integer flags:
1441      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1442     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1443    o ecco
1444      - enable trend removal from SSH anomaly obs.
1445    o adjoint
1446      - a fix for PmEpR when #undef EXACT_CONSERV
1447      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1448      - try to fix "hidden" recomp. in forward_step for NLFS
1449        (NLFS seems broken sometimes after I checked it in)
1450    o seaice:
1451     - add c-grid version of the dynamic solver:
1452       + three new routines that are the c-grid substitute lsr, dynsolver
1453         and ostres
1454       + put a few fields that were local to dynsolver into global common
1455         blocks, so that I can move the computation of stresses etc into
1456         seaice_lsr (saves coding but may break the adjoint).
1457     - replace more hardwired parameters by runtime parameters
1458     - add ice masks that mask the rhs of the implicit solvers where there
1459       is no ice (commented out in seaice_dynsolver, because i am not sure
1460       if this works properly), eventually this should replace the clipping
1461       of ice velocities in seaice_dynsolver to +/-40cm/s.
1462    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1463      include it only where its needed
1464    o move balancing of fluxes before the call of external_forcing_surf
1465    o seaice:
1466      - correct units of turning angles (now they are really in degrees)
1467      - move computation of GWATX/Y out of main routine into dynsolver
1468      - initialize GWATX/Y in seaice_init
1469    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1470      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1471    o seaice: add runtime flags for turning angles (default to zero)
1472    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1473      and trend from exf forcing and ctrl control adjustments
1474    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1475      (since checkpoint57x_post)
1476    o change the default rotation period to 86164.s = the Earth rotation
1477    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1478      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1479    o seaice advection: add code for choosing between the default (2nd order
1480      central differences) and multiDim advection schemes provided by
1481      pkg/generic_advdiff
1482    o seaice:
1483      - removed all references to SEAICE_GRID.h fields from
1484        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1485        (cubed-sphere configuration will change a little)
1486      - grid computations in seaice_init are obsolete now.
1487      - cleaned up code a little so that is easier to read (hopefully).
1488      - added new (better?) discretizations of default advection and diffusion
1489        (turn on with SEAICEuseFluxForm)
1490      - replace 1 in 3d global fields by kSurface in growth.F
1491      
1492    checkpoint58a_post
1493    o seaice:
1494      - bug fix in advect.F
1495    o shelfice:
1496      - separate shelfice load anomaly from pload (breaks with time
1497        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1498        Its default is 0., but it may be computed more cleverly from (unknown)
1499        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1500        done offline. A good approximation of the pressure load anomaly is
1501        necessary to avoid large initial adjustment processes underneath
1502        deep-reaching shelfice.
1503      - small fix in ISOMIP shelfice_thermodynamics
1504      - add more sophisticated thermodynamics of Hellmer (1989), this is
1505        now the default
1506      - give a few constants more intuitive names
1507    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1508      if bulk formulae are used in long integration (especially EmPmR). Turn
1509      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1510      if balancePrintMean, the imbalance that is substracted is printed to
1511      STDOUT.
1512    o fix bug (typo) in obcs_apply_eta.F
1513    o add a new package shelfice which enables us to model the circulation
1514      underneath shelf-ice with draughts of hundreds of meters.
1515     - works
1516     - to do: + include improved thermodynamics
1517              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1518                instead of new field kTopC
1519              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1520                instead of new field R_shelfIce and new code in ini_depth.F
1521                and ini_mask_etc.F?
1522              + adjust vertical mixing schemes?
1523    o seaice pkg:
1524     - add a cpp-flag to include a simple formula for a salinity dependent
1525       freezing point of sea water at the surface
1526     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1527       meridional stresses are now different (and hopefully correct)
1528    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1529       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1530       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1531    o pkg/diagnostics: add options and parameters for regional-statistics
1532       diagnostics ; define regions by reading a region-mask from a file
1533       (might add other options later)
1534    o pkg/bulk_force:
1535     - add option and parameters to use AIM surface-flux formulae.
1536     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1537       others forcing fields (defined in PARM05, parameter file "data") are loaded
1538       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1539     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1540     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1541     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1542       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1543     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1544    
1545    checkpoint58
1546    o add "--embed-source" option to genmake2 which, when the supporting
1547      tools can be compiled (as determined by genmake2) will turn on the
1548      embed_files package which then embeds the entire MITgcm source code
1549      (*.[fFhc] + Makefile) used for the build within the executable
1550      - requested by CNH but off by default
1551      - adds a paltry <9MB to the mitgcmuv executable in most cases
1552      - only writes the output when useEMBEDSRC in eedata is true
1553    o clean up 3-dim. relaxation codes:
1554      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1555      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1556      * Thanks to Tom Haine for testing!
1557    
1558    checkpoint57z_post
1559    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1560      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1561    o fix the pickup behavior for obcs in combination with ptracers
1562    o fix a bug in ptracers_external_fields_load
1563    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1564      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1565    o transfered surface NH pressure to eta field (if exactConserv).
1566    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1567         and update lab_sea output.txt file.
1568    o completing 3-dim. relaxation code: additional term
1569         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1570      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1571      * At compile time, in "EXF_OPTIONS.h" set
1572          #define  ALLOW_CLIMTEMP_RELAXATION
1573          #define  ALLOW_CLIMSALT_RELAXATION
1574      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1575          tauThetaClimRelax3Dim = 15552000.0,
1576          tauSaltClimRelax3Dim  = 15552000.0,
1577      * 3 cases:
1578          1) Use a constant-in-time 3-dim. field
1579          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1580          3) Real-time relax. to time-evolving prescribed field
1581    o Adding Laplacian-type smoothness constraint on
1582      initial and boundary (forcing) controls (ic, bc)
1583      * enable at compile-time via
1584        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1585      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1586      * Absolute scale somewhat unclear so far
1587      * no area weighting was included since no other cost term does so far
1588    
1589    checkpoint57y_post
1590    First step for a NLFS adjoint
1591    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1592    o new init. routines for calc_r_star, calc_surf_dr
1593    o still need to deal with ini_masks_etc
1594    o testreport seemed happy
1595    checkpoint57y_pre
1596    
1597    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1598    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1599    o add new offset feature to offline pkg (plus minor cleanup)
1600    o cfc fixes for final year of integration
1601    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1602      be in GCHEM_OPTIONS).
1603    
1604    checkpoint57x_post
1605    o fix testreport Pb in multiple test experiment.
1606    o cleanup our namelist syntax in verification:
1607      - make it more F95 standards compliant (some work still needed)
1608      - allows the vast majority of our tests to work with gfortran
1609    o Non-Hydrostatic:
1610     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1611     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1612    o Allow to apply AB on T,S rather than on AB(gT,gS):
1613     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1614     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1615       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1616     - need a "clever" read_pickup to restart from the other AB formulation
1617    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1618    o remove some unused variables (reduces number of compiler warnings)
1619    o adjoint
1620      * Disable useVariableViscosity for adjoint for time being
1621        (there are a number of extensive recomputations)
1622      * Initialize certain variables needed for adjoint
1623    
1624    checkpoint57w_post
1625    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1626                 fix the singleCpuIO RS version of MDSWRITEFIELD
1627       and add a WARNING if using globalFiles=T with multi-processors.
1628    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1629      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1630    o tracer advection scheme:
1631      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1632       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1633       was not very convenient).
1634      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1635       (further tests needed for the implicit DST & Flux-Limiter schemes).
1636    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1637      and sRef for convenience, handy, when you want to initialize
1638      ptracers in a large domain with a constant non-zero value. Also,
1639      untangle ptracers_init.F a little.
1640    
1641    checkpoint57v_post
1642    o change dome exp. to use variable viscosity in side-drag terms.
1643    o remove all the files from the cfc_offline test since they are now
1644      incorporated into tutorial_cfc_offline which has been producing
1645      identical results for a few days of testing
1646    o add new parameter: sideDragFactor to enable half-slip-side BC
1647      and change side-drag S/R to use viscosity from mom_calc_visc
1648      (can switch back by setting sideDragFactor=0.); affects results at
1649      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1650       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1651    o vorticity & strain are now computed without masking, to account for
1652      no-slip-side BC in variable viscosity calculation ; mask is applied
1653      anyway later on, before computing advection/coriolis terms.
1654    o modify exp4 to test new obcs support for reading from external files
1655      and for passive tracers
1656    o fix behavior of ptracers_monitor when monitor output is written to a
1657      netcdf-file; still not independent of monitor.F (writes in the same
1658      file).
1659    o change default value of tRef (put a uniform, meaningful value for ocean
1660      & atmos) and initialize sRef (was missing, as Martin mentioned).
1661    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1662      to be proportional to enstrophy dissipation length.  Thus,
1663       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1664      This is now consistent with Smagorinsky and with the manual.
1665    
1666    checkpoint57u_post
1667    o OBCS and PTRACERS: add open boundary support for passive tracers
1668      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1669        OB-values from file; this is not different from the way theta and salinity
1670        are treated
1671      - however, Orlanski-radiation conditions are not supported, and the model
1672        will stop if you use pTracers and Orlanski at the same time.
1673      - beefed up the rountine obcs_external_fields_load: now only those open
1674        boundary values are overwritten with values from files for which there
1675        are really files, otherwise the OB-fields remain untouched. This makes
1676        it possible to use different OBs at different ends of the domain (as
1677        with EXF)
1678    o reduce number of exch calls in shap_filt (s2).
1679    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1680      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1681    
1682    checkpoint57t_post
1683    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1684    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1685      same truncation, independent of the face number: affects affects several
1686      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1687    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1688      note that biharmonic viscosity + no-slip was not tested in any experiment.
1689    o fix bug in non-linear free-surf side-drag ; generate new output for
1690      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1691    o make mnc honor the writeBinaryPrec flag for most kinds of output
1692    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1693    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1694      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1695    o add brackets in multi-terms sum to get same truncation, independent of
1696      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1697      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1698    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1699      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1700      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1701      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1702      Suggested values of viscosity parameters found in mom_calc_visc.
1703      Many new viscosity diagnostics available.
1704    
1705    checkpoint57s_post
1706    o Add clearing-house for viscosity calculations, mom_calc_visc and
1707      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1708      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1709      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1710      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1711      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1712      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1713      ViscAhStrain and viscAhTension are now retired.
1714    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1715    o In response to JMC's bug report, genmake2 now ignores any soft-links
1716      that it finds in the *current* directory when searching for files.
1717      Soft-links found in any other source directories will still work as
1718      they did before.
1719    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1720      a C routine to unlimit the stack size
1721    o mnc-ify pkg/aim snapshot vars
1722    o mnc-ify pkg/land as requested by Daniel
1723    o various changes to mnc including:
1724      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1725      - output can now be grouped so that all files within a group
1726          change the ITER portion of their names in lock-step together
1727      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1728          and works with both EXCH1 and EXCH2 (but needs more testing)
1729      - writing works for all verification test cases w/ g77 on Linux
1730    
1731    checkpoint57r_post
1732    o make MNC variable initialization happen earlier
1733    o add diagnostics for (almost) each term of the momentum Eq.
1734    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1735    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1736    o remove MINIMAL_TAVE_OUTPUT option ;
1737      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1738    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1739      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1740    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1741    o add time-dependent SST, SSS control
1742    o cost terms in ecco/ modularized (new cost_generic.F)
1743    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1744    o new infrastructure for seaice model vs. obs misfits in seaice/
1745      * driver from the_main_loop.F is seaice_cost_driver.F
1746      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1747      * gradient check in Exp. 6a of natl_box_adjoint/
1748    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1749      (see README file)
1750    
1751    checkpoint57q_post
1752    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1753    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1754      - bug was reported by Jean-Michel and Ian Fenty
1755    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1756      update exp. cpl_aim+ocn output.
1757    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1758      Needed for high-res. runs with large global files
1759      to be able to limit tapelev size
1760    o Changed some tests for adjoint:
1761      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1762      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1763      * global_ocean.90x40x15/ back to default 3-level checkpointing
1764    o Modifications to enable scripted COMMON to MODULE conversion
1765      * verification/OpenAD/code/ has necessary scripts and description;
1766      * converts, compiles and runs successfully;
1767    
1768    checkpoint57p_post
1769    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1770    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1771      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1772    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1773    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1774      (was already the case for dissipation with mom_vecinv,
1775       and also the case for grad.PhiHyd when staggered-timeStep)
1776      This will allow to put dissipation out-off the AB time-stepping.
1777     Unfortunately, affects truncation error. Update output of exp. that "fails"
1778      (cg2d matching number) and leave the others for later: front_relax(10),
1779      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1780      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1781    
1782    checkpoint57o_post
1783    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1784      (2) its ready to be documented during the 20050801 DocFest
1785    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1786      for ideal_2D_oce and lab_sea on linux_ia32_g77
1787    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1788      in global1x1_tot/code_seaice_adj to access indices 32, 33
1789      (worth another tag)
1790    
1791    checkpoint57n_post
1792    o adding precip control xx_precip 32
1793    o adding swflux control xx_swflux 33
1794    o Replacing 10 forcing penalty cost routines by 1 generic.
1795    o Implementing partitioning in time-mean and variable adjustment
1796      for atmos. state.
1797    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1798  o in natl_box_adjoint:  o in natl_box_adjoint:
1799    * updated: results_bulk/    * updated exp 1 to 10
1800    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1801    o updated global1x1/*_seaice_adj/
1802      to incorporate latest changes
1803    o enable useSingleCpuIO for mdsio vector routines
1804      (applies in particular to tapelev I/O)
1805    o removed inefficient K-loop in all active_file*control*.F
1806    
1807  checkpoint57m_post  checkpoint57m_post
1808  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2385  o add two new packages
2385    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2386    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2387      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2388      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2389  o add offline package  o add offline package
2390  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2391    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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