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revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC revision 1.1082 by jmc, Tue Mar 24 21:00:08 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 pkg/seaice:
8      Major overhaul of the LSOR solver: change discretization from original
9      finite differences to finite volume. The old routine is still in the
10      file seaice_lsr.F and can be turned on with the CPP-flag
11      SEAICE_OLD_AND_BAD_DISCRETIZATION
12      Along with this change, the discretization of the strain rates is changed.
13      The same flag turns on the old discretization in seaice_calc_strainrates.F
14      All verification experiments with seaice are affected (except for
15      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
16      results by setting the above flag.
17      Further changes involve changes in defaults:
18      - ALLOW_FLOODING is defined and turned on by default
19      - SEAICE_advSnow = .true. is now the default
20      - SEAICE_advSalt = .true. is now the default
21      - SEAICE_advAge  = .true. is now the default
22      - SEAICE_clipVelocities  = .false. is now the default
23                                         (as per J. Zhang's recommendation)
24      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
25        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
26      - seaice_growth: replace computation of UG by a simple copy from wspeed
27    
28    checkpoint61k
29    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
30      seaice_lsr: fixed a few metric terms,
31                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
32                  add more debugging diagnostics
33      seaice_evp: removed superfluous many metric terms of FV discretization
34                  of stress divergence
35                  affects lab_sea, lab_sea.hb87
36      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
37                  of stress divergence for non-evp solver
38                  (this part is not tested anywhere)
39      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
40                  they were effectively only half slip
41                  affects lab_sea.hb87
42      updated all relevant verification experiments (except lab_sea//output_adm.txt
43        which was left over, but fails at level 7 & 6)
44    
45    checkpoint61j
46    o pkg/seaice: turn a few hard wired parameters into run time parameters
47    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
48      time in seconds as promised by the usints in seaice_monitor and exf_monitor
49    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
50      that are not cubed-sphere grids
51    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
52    o pkg/ctrl:
53      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
54    o non-hydrostatic (calc_gw.F):
55      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
56      update output of exp. global_ocean.cs32x15.viscA4
57    o remove backward compatibility for thetaMin,phiMin
58      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
59    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
60      interpolated wind field not only for curvilineargrid=.true., but also
61      for a rotated grid (rotateGrid=.true.)
62    o pkg/exf: add capability to bypass interpolation for runoff
63      by setting yet another CPP-flag
64    o eesupp/src, B-grid exchange:
65      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
66    o autodiff
67      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
68      allows to switch to single-prec common blocks;
69      corresponding switch occurs in tamc.h, integer isbyte
70      TAF store directivs "byte" and "kind" seem equivalent;
71      Most tamc.h have been updated correspondingly.
72    
73    checkpoint61i
74    o autodiff:
75      fix autodiff_sore/_restore indices for obcs
76      (spotted by I. Hoteit, M. Mazloff)
77    o pkg/autodiff, pkg/ctrl:
78      Add flag to reduce all tapelev I/O to single-prec.
79      In data.ctrl set
80        doSinglePrecTapelev = .TRUE.
81    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
82      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
83    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
84      real fresh water flux (not yet)
85    o pkg/mdsio & rw:
86     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
87     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
88    o pkg/flt:
89     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
90       init_fixed & ini_varia.
91     - clean-up & simplify linear interpolation S/R:
92       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
93     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
94     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
95     - add vert. coordinate & horiz. indices to output files.
96     - change vertical position in initial condition, from index to depth [m].
97     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
98       (easier to get to a curvilinear grid) ; delX,delY no longer used.
99    o pkg/ggl90: a few modifications:
100     - fix bottom boundary condition, and interpolation of KappaE
101       near top and bottom
102     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
103     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
104     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
105    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
106      (maintain temporary backward compatibility, until next checkpoint)
107    
108    checkpoint61h
109    o pkg/diagnostics with "periodic averaging diagnostics":
110      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
111    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
112    o pkg/obcs: fix loop ranges for balancing code
113    o pkg/flt:
114     - improve criteria for finding which tile owns a float.
115     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
116    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
117      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
118      with ocean biogeo)
119    o pkg/flt:
120     - do some cleaning and fix the restart ;
121     - add output.txt in flt_example/results to get this pkg tested.
122    o genmake2: add an EXTENDED_SRC option and flag.
123       for now, cannot be turned on on command line (only through genmake_local)
124    o pkg/mdsio: read/write vector:
125     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
126     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
127       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
128     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
129      (drop to 4 digits matching for grad). But this test does not look very
130      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
131    
132    checkpoint61g
133    o pkg/flt:
134      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
135       + make OPTIONS file more standard.
136      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
137      - fix _BYTESWAPIO CPP-Flag
138      - standard reading of file-parameter "data.flt"
139      - fix argument list of S/R FLT_RESTART
140      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
141    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
142    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
143      a still unfixed compiler/optimization bug
144    
145    checkpoint61f
146    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
147      update results of global_ocean.cs32x15.icedyn test.
148    o move getcon.F from model/src to pkg/fizhi.
149    o pkg/exf: add parameter for extrapolation of temp up to the surface
150       and option to prevent negative evap (in bulk_largeyeager04 only).
151    o Prather Advection scheme: fix tracer conservation for divergent flow
152      (e.g., when using NonLin Free-Surface).
153    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
154    o gmredi (Visbeck-variable-K):
155     - add more parameters to Visbeck-variable-K.
156     - use a 5 points average for dSigmaR in Visbeck-K calculation
157       (more "homogenous": same stencil and same weights as in dSigmaH)
158     - update output of ideal_2D_oce experiment.
159    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
160      (#undef REAL4_IS_SLOW)
161     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
162       coordinate variable
163     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
164       (surface forcing fields), removes some of the functionality
165     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
166     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
167       probably not all: copy _RS surface flux fields to RL field before
168       calling DIAGNOSTICS_FILL
169     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
170       real*4 (CALL EXCH_*_RS) versions.
171     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
172       (generate new output).
173    
174    checkpoint61e
175    o gmredi (Visbeck-variable-K):
176      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
177      - change computation of Visbeck-K where Slope > Smax :        
178        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
179        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
180    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
181      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
182    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
183    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
184      does not become too large (to avoid precision problems in implicit-diffusion
185      solver); update ideal_2D_oce output.
186    o pkg ggl90:
187      - in ggl90_cal.F: compute only one set of visc/diff, used to
188        step forward TKE/T/S/momentum
189      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
190        have Prandlt =1)
191    o gmredi (fm07):
192      - add lower limit on Transition layer thickness + lower limit on 1/lambda
193      - allow to set few more params from data.gmredi
194    o pkg ggl90:
195          - add missing sqrt(2) factor in computation of mixing length
196            scale in ggl90_calc.F
197            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
198    
199    checkpoint61d
200    o adjoint modifs
201      - adapt to new field rhoInSitu
202      - allow to revert from StoreDynVars2D, StoreDynVars3D
203        to individual fields
204        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
205    o store 3-D (in-situ) density in commom block (DYNVARS.h)
206     - save 1 rho computation.
207     - no longer modify T & S inland when using down_slope pkg.
208    o gad_som : allow to switch to SOM advection for T & S without corresponding
209      pickup files (using new S/R: MDS_CHECK4FILE).
210    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
211      (for useSingleCpuIO to work in multi-threaded)
212    o pkg/shelfice:
213     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
214       with SHELFICEtopoFile in data.shelfice
215     - move code for reading ice shelf topography and modifying hFacC into separate
216       subroutines of the shelfice package
217     - separate initialisation of "fixed" and "variable" variables
218     - kTopC is not (yet) replaced by kSurfC, although this is possible
219    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
220    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
221      and rename:
222      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
223      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
224    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
225    
226    checkpoint61c
227    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
228      to add mass source/sink of fluid in the interior (3-D generalisation
229      of oceanic real-fresh water flux).
230    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
231    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
232    o new pkg: down_slope
233      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
234      - presently, modify T & S inland (dwnslp_calc_rho.F).
235        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
236      - implementation for ocean in P-coords not tested.
237      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
238    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
239      (to facilitate conversion of oceanic pkg to p-coordinate).
240    o change FIND_RHO to FIND_RHO_2D :
241      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
242    o new pkg: cheapaml
243    
244    checkpoint61b
245    o exch2:
246      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
247      - no longer depend on the order sequence (N,S,E,W).
248      - 3rd exchange no longer needed (tested with 24 tiles).
249      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
250      - exch_UV_A-grid readily available (but not yet tested).
251      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
252      (both are no longer needed) in exch_uv: no effect in forward run; but
253       get truncation error differences with adjoint exch.
254    o exch2:
255     - change index-bounds storage (moved from target to local tile,
256       more intuitive this way) ; rename/remove some variables.
257     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
258    
259    checkpoint61a
260    o exch2/matlab-topology-generator:
261      fix bug in index bounds for N-S internal exchange (hard to tell if this
262      had any effect on the solution).
263    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
264      is exceeded
265    o testreport: modify syntax of awk, so that it works also with
266      awk, and not only with nawk and gawk
267    
268    checkpoint61
269    o autodiff
270      Change default for TAF usage by removing argument '-nonew_arg'
271      This changes TAF subroutine argument list (ordering of active var.)
272      Omission of this flag leads to incompatibility w.r.t. TAMC
273      To restore TAMC-compatibility, need following modifs:
274      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
275      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
276      Tested TAF version is 1.9.22
277      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
278    
279    checkpoint60
280    --->>> This is the last checkpoint for which generating the adjoint
281    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
282    --->>> by default.
283    --->>> Future checkpoints will ommit this flag by default.
284    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
285    o pkg/grdchk: Add gradient check to etan0 perturbations.
286    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
287    o pkg/autodiff: more flexibility in zeroadj.
288      model/src: modifying do_oceanic_phys.F accordingly.
289    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
290    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
291      special setup of gmredi for which the adjoint is stable
292      enough for parameter optimization.
293    o bridging the gap between eddy stress and GM.
294      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
295          along with a change in CPP option (now ALLOW_EDDYPSI).
296      -> when using GM w/ GM_AdvForm:
297          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
298          is applied either in the tracer Eq. or in momentum Eq.
299          depending on data.gmredi (intro. GM_InMomAsStress).
300      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
301      The key modifications are in model/src/taueddy_external_forcing.F
302      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
303    
304    checkpoint59r
305    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
306      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
307      fix option to read coriolis(@ cell-corner) from files with CS-grid.
308    o pkg/mnc: add some attributes to standard 1D-coordinate variables
309    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
310      mass points, when using mnc for output
311      - add runtime parameter (missing_value, missing_value_int) to override
312        default (which is the value of getcon('UNDEF'))
313    o pkg/mnc: prepare mnc for the actual use of missing values with the
314      diagnostics package: small fix in mnc_cw_readwrite.template and more
315      initialisation of never used fields
316      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
317      versions
318    o pkg/thsice/thsice_ini_vars.F added default initial values so that
319      thermodynamics sea ice solver does not blow up when some initial fields
320      are missing.
321    o move from external_forcing_surf.F to ini_forcing.F
322      the p-coord. hack consisting in using pLoad to set phi0surf ;
323      update output of tutorial_global_oce_in_p (affected @ truncation level).
324    o Freshen up a bit hs94.1x64x5, notably:
325      remove rotationPeriod and tRef=5*0. (adjoint only), and add
326      exactConserv=.TRUE.
327    o pkg/generic_advdiff:
328      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
329      applies to files where Temperature & Salinity 2nd Order moments are used.
330    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
331      this uses a dynamically allocated internal state data structure
332      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
333      and requires a fortran 90 compiler
334    
335    checkpoint59q
336    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
337       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
338    o Refresh tutorial_global_oce_biogeo, notably:
339      - change bathymetry (put back seamounts in ACC, use hFacs)
340      - change EOS (POLY3 --> JMD95Z)
341      - use Bryan-Lewis vertical diffusivity
342      - use multidimensional advection
343      - remove old virtual virtual in dic pkg, now done through ptracer pkg
344      - change a couple of parameters in dic pkg
345    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
346    o pkg/obcs: change default to OBCSfixTopo = .true.,
347      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
348      - replace "debugMode" with "debugLevel .GE. debLevB"
349    o implementation of TAF directives for gchem,cfc,dic
350    o remove "exp5" (replaced by tutorial_deep_convection).
351    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
352      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
353      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
354      --> changes results in exp4, seaice_obcs
355    o tutorial_deep_convection :
356      update the set-up and increase resolution and domain size ; start
357      from pseudo initial conditions = output at t=120mn in order to see
358      something happening when running testreport.
359    o pkg/seaice: add os7mp as an advection scheme
360                  add check for advection schemes
361                  add a flag for restoring T and S underneath sea ice
362    o pkg/my82: add netcdf-support and diagnostics
363    o thsice pkg:
364      - Now hsMax limits snow height by turning it into ice following
365        flooding scheme (and now conserving energy)
366      - Slight rewriting of the formula in thsice_calc_thick.F
367      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
368      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
369    
370    checkpoint59p
371    o gchem / dic / cfc :
372      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
373      - add new parameter files: "data.dic" & "data.cfc" ;
374      - various re-arrangement in initialisation & header file ;
375      - fix tutorial_global_oce_biogeo for multi-threaded test.
376    o pkg/dic: test for "pickup_dic" file when restarting ;
377      if no pickup-file, can restart with a re-initialised pH (same as it did
378      before) providing pickupStrictlyMatch is set to False.
379    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
380      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
381    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
382      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
383    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
384     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
385       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
386    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
387       scheme to use for vorticty-term ;
388     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
389       (with default selectVortScheme, return to original discretisation)
390     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
391    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
392    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
393      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
394      also fix diagnostics VISCAHW & VISCA4W.
395    
396    checkpoint59o
397    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
398    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
399      move a few statemens out the main loop into separate loops
400    o pkg/shelfice:
401      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
402        (kg/m^2/s), does not break tests, because in verification/isomip,
403        rhoConstFresh=rhoConst (by accident)
404      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
405      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
406        new file model/src/seawater.F, so that they are available for all pkgs.
407      - convert potential temperature into in-situ temperature. This changes the
408        isomip tests => update tests
409    o add a flag writePickupAtEnd (default=true) to be able to suppress
410      writing a pickup at the last timestep
411    o tools/mpack-1.6 :
412      - disable automake (not working) and autoconf (not needed).
413      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
414        also cleaner with much less compilation warnings.
415    o pkg/profiles:
416      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
417      (for "less than 32 characters name" compiler requirement)
418    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
419      conditions that have a different sampling frequency than S/T/U/V obcs
420    o pkg/diagnostics (stats-diags):
421      - fix global Min/Max in case 1 processor get only empty tiles
422    o genmake2: replace (4 times)
423         make genmake_tc_1.o >> genmake_warnings 2>&1
424      with
425         COMM="$CC $CFLAGS -c genmake_tc_1.c"
426         echo $COMM >> genmake_warnings
427         $COMM >> genmake_warnings 2>&1
428      to make genmake2 always see the value of CC as specified in the optfile.
429    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
430      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
431      - modify verification advect_cs test to test SOM-advection on CS-grid.
432    o pkg/ctrl:
433      - Rewrite of ctrl_map_ini_ecco.F,
434        introducing a generic routine (ctrl_map_ini_gen.F).
435      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
436    
437    checkpoint59n
438    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
439      number in dedicate array "hdiag":
440      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
441        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
442      - many small changes (integer format) for large number of diagnostics
443      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
444        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
445    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
446      usingSphericalGrid, this allows to define the rotated grid coordinates
447      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
448      geographical coordinates according to the inverse of the rotation defined
449      by the Euler angles, so that Coriolis parameter and online-interpolation by
450      exf works with the geographical coordinates on XC/YC/XG/YG.
451      Naturally, this feature does not work with all packages, so some
452      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
453      profiles), because there the coordinates are assumed to be regular
454      spherical grid coordinates.
455    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
456      - introduce isopycnal diffusion coefficient control.
457    o tools/adjoint_options:
458      - additional control vector components.
459    o pkg/mnc: have mnc create marginally meaning full coordinate variables
460      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
461    o pkg/mypackage:
462      - add example of read/write pickup for state-var ;
463      - add entry points to the main code for state-vars diags & write-pickup.
464    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
465      transitions for useExfYearlyFields
466      - add new subroutine that determines the file to read from for
467        use*YearlyFields = .TRUE. and .FALSE.
468      - add a verification experiment to global_with_exf that tests
469        useExfYearlyFields with USE_EXF_INTERPOLATION defined
470    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
471      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
472      subroutines (which could be generated from a template, because they are
473      almost identical), for now they are included in obcs_prescribe_read.F for
474      simplicity
475    o pkg/exf:
476      - add a little more diagnostic to exf_interp_read (in analogy to
477        mds_read_field, can be turned off with debugLevel < debugLevA=1)
478      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
479        ugly but fast by unrolling short inner loops, inserting a unroll=8
480        directive in routine lagran, and splitting a loop and making do while the
481        outermost loop (the latter requires the intoduction of index arrays)
482    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
483    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
484      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
485    o verification/seaice_obcs: updated for restart test and latest options
486    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
487      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
488      for now this is only available for the C-grid code and also within
489      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
490    
491    checkpoint59m
492    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
493      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
494    o gad_som : fix flux output (& diagnostics) to have same units as other  
495      advection scheme fluxes (was previously multiplied by deltaT).  
496    o added verification/seaice_obcs both to test seaice open boundaries
497      and to provide an example matlab scrpt for generating them
498    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
499    o pkg/salt_plume: clean up salt_plume_frac.F to
500      remove redundancy in PlumeMethod 1 and 4
501    o pkg/kpp: added saltplume diagnostics
502    o pkg/obcs and pkg/seaice:
503      - do not set uice and vice to zero when OB*icefile are unspecified
504      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
505      - moved seaice tracer obcs after call to seaice_growth
506    o pkg/salt_plume: added various options for salt plume depth
507      criterion and for vertical distribution of the salt
508    
509    checkpoint59l
510    o pkg/ptracers: new version of ptracers pickup:
511      read meta file and write only fields which are needed to restart.
512      ( same logic as main pickup file ; also using pickupStrictlyMatch )
513    o pkg/seaice:
514      - add timescale for melting due to warm mixed layer as a means of
515        setting SEAICE_availHeatFrac more conveniently
516      - add a CPP-flag/runtime parameter check for flooding algorithm
517      - reformulated availHeat in seaice_growth.F to be independent of AREA
518    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
519      unit changes
520    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
521    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
522      SX vector computer.
523    o pkg/seaice:
524      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
525        seaice forcing fields can now be read only through pkg/exf
526      - removed some unused halos
527    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
528    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
529      or U/VICE from U/VWIND before computing U/VSTRESS
530    
531    checkpoint59k
532    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
533      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
534    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
535      all experiments pass when compile with un-initialised var. checking option.
536    o added pkg/salt_plume
537    o script to test restart (for now, in MITgcm_contrib/jmc_script)
538    o pkg/seaice: new read/write pickup version.
539      read meta file and write only fields which are needed to restart.
540      ( same logic as main pickup file ; also using pickupStrictlyMatch )
541    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
542    o lab_sea.hb87: modify the domain & update output.hb87.txt :
543      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
544      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
545      process. Fixed here by closing the domain at the Northern boundary.
546    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
547    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
548      a set of consecutive levels in/from a 3-D array.
549    o pkg/ptracers:
550      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
551      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
552    
553    checkpoint59j
554    o in pkgs: dic, obcs, offline, rbcs:
555      standard way to compute coeff. for time interpolation between 2 time reccords
556      which retains full precision (& make results less dependent on compiler).
557      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
558    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
559      packages instead of reading ice cover and wind speed separately
560    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
561     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
562      to allow to compile customized code before the update)
563    o cleaning-up:
564      - fix CPP instruction syntax in pkg/obcs
565      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
566        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
567      - fix some threads issue in IO parts.
568    o pkg/dic:
569      - add tons of "_d 0" (--> much better testreports !)
570       and then update outputs of tutorial_global_oce_biogeo
571    o pkg/mom_fluxform:
572      add a special version of momentum advection intended to conserve momentum
573      next to a bathymetry step or a coastline edge. (default = off = #undef)
574    o new read/write pickup version:
575      - for now, only implemented for main (mdsio) pickup file.
576      - write out only what is needed to restart; merge pickup_nh , pickup_ph
577        and main pickup together.
578      - read meta file; read only what is needed to restart; stop if a field
579        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
580        if it make sense (even if the restart is not perfect).
581      - if no meta file, assume that pickup to read corresponds exactly to
582        a pickup that would currently be written.
583      - read pickup written in the old format (until checkpoint59i) if it
584        recognizes an old meta file (no field-list).
585      - add a meta file in exp. which starts from a pickup: 2 cases:
586        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
587         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
588        b) a meta file describing the content of the associated pickup file
589         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
590    o pkg/mdsio & pkg/rw:
591      - new routine to read a meta file ; new set of routine to read
592        Multiple-fields file (with meta file).
593    o added open boundary conditions capability for seaice
594        HSNOW, HSALT, UICE, and VICE
595    
596    checkpoint59i
597    o adjoint:
598      * fix multiDimAdvection adjoint
599        (partial recomputation problem by TAF for fVerT(:,:,kDown)
600        and comlev1 size definition (maxpass vs. max. number of tracers)
601      * verification/global_ocean.90x45x15 adjoint now tests
602        NLFS and multiDimAdvection using DST3 (=30)
603      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
604    o pkg/kpp: add "_d 0" to real constant (if missing);
605      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
606      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
607    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
608      for internal parameters related to restart process (formerly from PARAMS.h)
609      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
610    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
611      as argument. (only atm2d & obcs write_pickup have not yet been updated)
612    o pkg/monitor:
613      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
614      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
615      - account for deep Atmosphere factor and density factor (anelastic)
616    o added open boundary conditions capability for seaice HEFF and AREA
617    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
618      thermodynamics
619      - requires a little reorganization, which affects the testreport results
620        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
621        so that now the conservative form is tested
622      - add a few comments
623    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
624    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
625    o add new diagnostics to seaice: advective, diffusive fluxes (only for
626      multidim-advection, for scheme 2 they are not filled) and transports,
627      thermodynamic growth rates
628    o change units of EmPmR (inside the code, + within coupling interface)
629      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
630      Affects results @ truncation level (cg2d match) and update output of
631       experiments: lab_sea(6), global_ocean.90x40x15(10),
632      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
633      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
634      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
635      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
636    
637    checkpoint59h
638    o pkg/exf:
639      - improve vectorization by moving if-statement out of loops in
640        exf_mapfields, exf_radiation
641      - exf_bulkformulae.F: introduce 2D fields and vectorize code
642    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
643    o testreport:
644      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
645        monitor & update offline_exf_seaice exp. output.
646      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
647    o pkg/seaice:
648      - bug fix in the evp solver: boundary conditions were affected be
649        masking of zMax/zMin (changes results)
650      - minor bug fix in boundary conditions in seaice_calc_strainrates
651        (changes results for no_slip)
652      - seaice_lsr.F: make interpolation of eta dependent on boundaries
653      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
654      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
655        stress formulation and no-slip boundary conditions
656    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
657      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
658    o pkg/seaice: a first HSALT time stepping equation has been checked in
659    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
660      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
661      without requiring DO-IF statements
662    o pkg/thsice:
663      use continuous power-law function for partition of energy between lateral
664      melting/freezing and thinning/thickening ; old code using step function
665      still available with #undef THSICE_FRACEN_POWERLAW
666      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
667    o testreport: change AD testing : check against results/output_adm.txt
668      using same scripts as for forward test.
669    
670    checkpoint59g
671    o adjoint testing: in preparation for changing testreport:
672      - output format: cost and grad written on separated lines
673      - ad output results in directory "results" (instead of "results_ad")
674    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
675    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
676    o pkg/ecco: allow user defined cost function contributions
677    o testreport:
678      Allow to choose (per experiment) the list of tested output variables
679       and the main variable (used to issue a pass/FAIL ) ;
680      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
681      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
682      Also modify printing of summary:
683       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
684       b) echo the list of tested variables in the individual summary.txt of
685          each experiment.
686    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
687      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
688      (but still depend on the tile decompostion of the domain).
689    o pkg/seaice: change a discretization detail to make the B-grid code
690      "more symmetric". This change is likely to remove all "ridges/leads" that
691      where quasi-aligned with the grid in B-grid solutions. It may also be
692      the solution to the stress coupling issues with the B-grid.
693    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
694      remove .cvsignore from input dir. (since testreport no longer run here).
695    o pkg/thsice:
696     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
697     - fix reshaping of sea-ice just after advection:
698       melt all the ice only if ice-volume is too small.
699     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
700       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
701     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
702    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
703      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
704    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
705      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
706      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
707      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
708      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
709      -> update output.txt
710    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
711     this affects truncation error: -> update output.txt of exp:
712      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
713      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
714    
715    checkpoint59f
716    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
717    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
718      a bounded range (in forward mode)
719    o pkg/ecco, ctrl, autodiff and mom_common:
720     internal parameter controls, completements of implementations
721    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
722    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
723      (not seem any difference in testing results).
724    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
725       at face corners.
726    o pkg/generic_advdiff:
727     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
728      loop range indices for computing vertical advection tendency
729      and do the calculation in the interior only (no overlap) ;
730      for now, only implemented for SOM advection (to save CPU time).
731     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
732    o exch2 adjoint
733      First set of changes:
734      - add exch2 hand-written adjoint templates
735      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
736        This will require cleanup in pkg/autodiff/*.F
737        (changed routines currently kept separate in verif. code/)
738      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
739        that used to hide exch2 or cubed-sphere specific code
740        (commented via 'cph-exch2')
741    o pkg/seaice
742      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
743    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
744       output of global_ocean.cs32x15.thsice .
745    
746    checkpoint59e
747    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
748      for B-grid vector (not yet tested) and C-grid vector (<- only used
749      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
750    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
751      (#ifdef ALLOW_SALT_PLUME)
752    o gather_2d/scatter_2d: removed halo regions
753    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
754      scheme and the corresponding test case (under front_relax dir). For now,
755      only available with Skew-flux form and not yet tested in realistic set-up.
756      adjoint: store directives updated, but gradient checks deteriorated,
757      so maybe GM/Redi adjoint is now broken.
758    o seaice adjoint
759      * add AREA, HEFF, HSNOW as control variable
760        (should not change lab_sea results)
761      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
762    o pkg/seaice:
763      * added computation of saltFlux in seaice_growth;
764        For time being, sea ice salinity is assumed constant
765        contribution of snow flooding to freshening of sea ice is neglected.
766        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
767        defaults to 0.0 in order to maintain backward compatibility.
768        Typical values for SEAICE_salinity are 4 to 10 g/kg.
769      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
770      * added SEAICE_availHeatFrac, which specifies fraction of surface level
771        heat content used to melt or grow ice
772      * commented out cap of HICE: it helps keep ice thinner
773      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
774      * applied OBCS T/S mask to HEFFM sea ice mask
775    
776    checkpoint59d
777    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
778     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
779     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
780    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
781     and change default value of parameter "GM_Small_Number";
782     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
783       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
784       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
785    o pkg/ecco: cost function when applying pkg/smooth to controls
786    o pkg/ctrl: add forcingPrecond run time parameter
787    o pkg/seaice:
788     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
789     - fix bug in metric terms of u-equation in LSR solver (implicit part),
790       changes verification/lab_sea
791     - rearrange implicit part of u-equation in LSR solver to make it easier to
792       read, understand, and debug. This causes changes at the truncation level.
793     - fix (serious) bug in the boundary conditions (sign error in the implicit
794       part) of the LSR solver. Changes all LSR results.
795     - fixed problem with HSNOW initialization to avoid thick snow when AREA
796       is initilized with small values - does not change lab_sea results.
797     - added HsnowFile initialization capability
798    o pkg/smooth: addition to model/src and pkg/ctrl so allow
799     initialization of pkg/smooth and application to control vector
800    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
801    o dependencies: pkg/profiles requires pkg/cal
802    o pkg/profiles:
803     - added option ALLOW_PROFILES_GENERICGRID
804         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
805         that interpolation information (grid points and coefficients) is provided
806         within the netcdf input files.
807         -> sample matlab scripts can be found in MITgcm_contrib/gael
808         that allow you to prepare netcdf input files.
809     - also modified: cleaner include statements, cleaner error print statements,
810       cleaner stops when error, and more tests of the netcdf input files consistency.
811    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
812    o pkg/seaice:
813     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
814       requires a new routine: seaice_diagnostics_fill.F
815     - make sure that seaice does not move if not forced (pressure replacement
816       method, Hibler and Ip, 1995), changes results
817     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
818     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
819       It is turned off by default (=-1.), because it changes the results.
820     - make it possible to read AREA from a file, too.
821    
822    checkpoint59c
823    o add S/R and diagnostics for oceanic mixed-layer depth
824    o move GMRedi call after all vertical mixing schemes (including KPP)
825    o pkg/thsice:
826     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
827      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
828    o pkg/obcs:
829     - bug fix for balance code
830    o pkg/seaice:
831      - allow values of SEAICE_elasticParm > 1
832      - add new parameter SEAICE_evpTauRelax as an alternative
833        to SEAICE_elasticParm
834      - make lsr boundary conditions free slip (by default), changes result
835      - add code for no slip boundary conditions for lsr
836      - set minimum of zeta to zero (and not 4e8) (changes results)
837      - add a cap on AREA after advecting AREA if seaice_growth is not called
838    o change calculation of Visbeck K:
839      - no longer depend on tapering scheme; instead, compute slope (limited
840        by GM_maxSlope). this is equivalent to what was comuted before with
841        clipping or linear tappering.
842      - fix vertical averaging (wrong by 1/2 level)
843      - leave the old version (but will not be maintained) within
844        #ifdef OLD_VISBECK_CALC / #endif
845      - update output of exp. ideal_2D_oce
846    o change error catch in calc_r_star to improve vectorization
847    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
848      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
849    o adjoint:
850      Re-organized adjoint checkpointing according to Matt Mazloff
851      (but with modifs/completions/cleanups)
852      Storing is now bundled into large arrays to optimized I/O
853      (and second step in cleanup of the_main_loop)
854    
855    checkpoint59b
856    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
857      - export/import (between ocean & coupler) fields needed for ocean DIC.
858    o pkg/seaice:
859      - get rid of three more exchanges seaice_calc_viscosities (required
860        different loop boundaries in seaice_lsr and seaice_ocean_stress)
861      - bug fix in seaice_ocean_stress (update of lab_sea required)
862      - reduce loop boundaries to necessary minimum also in seaice_evp
863      - go back to the old way of computing deltaC/Z as the adjoint likes that
864        better
865    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
866      passive tracer to an Age Tracer) + update output.txt
867    o pkg/exf:
868      - implement A-grid / C-grid selection for wind-stress input files.
869      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
870      for now, in exf_bulk_largeyeager04.F only :
871      - change implementation for case where windspeed + 2. components wind-stress
872        are read-in. AND use rhoConstFresh to convert evap.
873    o pkg/seaice:
874      - use correct EXCH_UV for wind-forcing (on A-grid).
875      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
876        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
877    o pkg/exf:
878      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
879      EXF_INTERPOLATION:
880      - merge global_with_exf/code version of exf_interp_read.F
881        to the main code ;
882      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
883        reading the file ; Important: This options needs to be defined to recover
884        previous code.
885        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
886      - no longer loose real*8 precision along the way when using exf_iprec=64.
887  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
888      - change discretisation of evp-solver in order to avoid another exchange
889        (changes lab_sea) and clean up a little
890      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
891        help the adjoint (this also changes the results slightly)
892      - add a few "_d 0" where they had been missing in seaice_evp.F
893      - cleaning up: remove unused seaice_calc_rhs.F
894  o pkg/exf: some cleaning-up:  o pkg/exf: some cleaning-up:
895    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
896    - cleaned-up Large&Yeager04 routine which should eventually    - cleaned-up Large&Yeager04 routine which should eventually
# Line 18  o pkg/exf: some cleaning-up: Line 904  o pkg/exf: some cleaning-up:
904  o pkg/thsice:  o pkg/thsice:
905   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
906    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
907    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
908    and in thsice_extend.F:    and in thsice_extend.F:
909    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
910    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 920  o pkg/kpp
920  o pkg/seaice  o pkg/seaice
921   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
922   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
923    o OpenAD
924     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
925    
926  checkpoint59a  checkpoint59a
927  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 53  o in FFIELDS.h: Line 941  o in FFIELDS.h:
941       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
942  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
943  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
944      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
945        are no longer updating the vertical diffusivity array
946        (passed as argument) but are (re-) setting those arrays.
947  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
948    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
949      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 1535  o add two new packages Line 2425  o add two new packages
2425    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2426    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2427      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2428      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2429  o add offline package  o add offline package
2430  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2431    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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