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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1083 by jmc, Fri Mar 27 00:09:17 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 lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
8  o moved ptracer ctrl index 17 -> 32  o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
9       update lab_sea.lsr & lab_sea.salt_plume results
10    o pkg/seaice:
11      Major overhaul of the LSOR solver: change discretization from original
12      finite differences to finite volume. The old routine is still in the
13      file seaice_lsr.F and can be turned on with the CPP-flag
14      SEAICE_OLD_AND_BAD_DISCRETIZATION
15      Along with this change, the discretization of the strain rates is changed.
16      The same flag turns on the old discretization in seaice_calc_strainrates.F
17      All verification experiments with seaice are affected (except for
18      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
19      results by setting the above flag.
20      Further changes involve changes in defaults:
21      - ALLOW_FLOODING is defined and turned on by default
22      - SEAICE_advSnow = .true. is now the default
23      - SEAICE_advSalt = .true. is now the default
24      - SEAICE_advAge  = .true. is now the default
25      - SEAICE_clipVelocities  = .false. is now the default
26                                         (as per J. Zhang's recommendation)
27      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
28        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
29      - seaice_growth: replace computation of UG by a simple copy from wspeed
30    
31    checkpoint61k
32    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
33      seaice_lsr: fixed a few metric terms,
34                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
35                  add more debugging diagnostics
36      seaice_evp: removed superfluous many metric terms of FV discretization
37                  of stress divergence
38                  affects lab_sea, lab_sea.hb87
39      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
40                  of stress divergence for non-evp solver
41                  (this part is not tested anywhere)
42      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
43                  they were effectively only half slip
44                  affects lab_sea.hb87
45      updated all relevant verification experiments (except lab_sea//output_adm.txt
46        which was left over, but fails at level 7 & 6)
47    
48    checkpoint61j
49    o pkg/seaice: turn a few hard wired parameters into run time parameters
50    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
51      time in seconds as promised by the usints in seaice_monitor and exf_monitor
52    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
53      that are not cubed-sphere grids
54    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
55    o pkg/ctrl:
56      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
57    o non-hydrostatic (calc_gw.F):
58      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
59      update output of exp. global_ocean.cs32x15.viscA4
60    o remove backward compatibility for thetaMin,phiMin
61      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
62    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
63      interpolated wind field not only for curvilineargrid=.true., but also
64      for a rotated grid (rotateGrid=.true.)
65    o pkg/exf: add capability to bypass interpolation for runoff
66      by setting yet another CPP-flag
67    o eesupp/src, B-grid exchange:
68      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
69    o autodiff
70      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
71      allows to switch to single-prec common blocks;
72      corresponding switch occurs in tamc.h, integer isbyte
73      TAF store directivs "byte" and "kind" seem equivalent;
74      Most tamc.h have been updated correspondingly.
75    
76    checkpoint61i
77    o autodiff:
78      fix autodiff_sore/_restore indices for obcs
79      (spotted by I. Hoteit, M. Mazloff)
80    o pkg/autodiff, pkg/ctrl:
81      Add flag to reduce all tapelev I/O to single-prec.
82      In data.ctrl set
83        doSinglePrecTapelev = .TRUE.
84    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
85      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
86    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
87      real fresh water flux (not yet)
88    o pkg/mdsio & rw:
89     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
90     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
91    o pkg/flt:
92     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
93       init_fixed & ini_varia.
94     - clean-up & simplify linear interpolation S/R:
95       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
96     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
97     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
98     - add vert. coordinate & horiz. indices to output files.
99     - change vertical position in initial condition, from index to depth [m].
100     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
101       (easier to get to a curvilinear grid) ; delX,delY no longer used.
102    o pkg/ggl90: a few modifications:
103     - fix bottom boundary condition, and interpolation of KappaE
104       near top and bottom
105     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
106     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
107     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
108    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
109      (maintain temporary backward compatibility, until next checkpoint)
110    
111    checkpoint61h
112    o pkg/diagnostics with "periodic averaging diagnostics":
113      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
114    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
115    o pkg/obcs: fix loop ranges for balancing code
116    o pkg/flt:
117     - improve criteria for finding which tile owns a float.
118     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
119    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
120      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
121      with ocean biogeo)
122    o pkg/flt:
123     - do some cleaning and fix the restart ;
124     - add output.txt in flt_example/results to get this pkg tested.
125    o genmake2: add an EXTENDED_SRC option and flag.
126       for now, cannot be turned on on command line (only through genmake_local)
127    o pkg/mdsio: read/write vector:
128     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
129     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
130       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
131     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
132      (drop to 4 digits matching for grad). But this test does not look very
133      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
134    
135    checkpoint61g
136    o pkg/flt:
137      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
138       + make OPTIONS file more standard.
139      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
140      - fix _BYTESWAPIO CPP-Flag
141      - standard reading of file-parameter "data.flt"
142      - fix argument list of S/R FLT_RESTART
143      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
144    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
145    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
146      a still unfixed compiler/optimization bug
147    
148    checkpoint61f
149    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
150      update results of global_ocean.cs32x15.icedyn test.
151    o move getcon.F from model/src to pkg/fizhi.
152    o pkg/exf: add parameter for extrapolation of temp up to the surface
153       and option to prevent negative evap (in bulk_largeyeager04 only).
154    o Prather Advection scheme: fix tracer conservation for divergent flow
155      (e.g., when using NonLin Free-Surface).
156    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
157    o gmredi (Visbeck-variable-K):
158     - add more parameters to Visbeck-variable-K.
159     - use a 5 points average for dSigmaR in Visbeck-K calculation
160       (more "homogenous": same stencil and same weights as in dSigmaH)
161     - update output of ideal_2D_oce experiment.
162    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
163      (#undef REAL4_IS_SLOW)
164     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
165       coordinate variable
166     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
167       (surface forcing fields), removes some of the functionality
168     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
169     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
170       probably not all: copy _RS surface flux fields to RL field before
171       calling DIAGNOSTICS_FILL
172     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
173       real*4 (CALL EXCH_*_RS) versions.
174     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
175       (generate new output).
176    
177    checkpoint61e
178    o gmredi (Visbeck-variable-K):
179      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
180      - change computation of Visbeck-K where Slope > Smax :        
181        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
182        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
183    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
184      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
185    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
186    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
187      does not become too large (to avoid precision problems in implicit-diffusion
188      solver); update ideal_2D_oce output.
189    o pkg ggl90:
190      - in ggl90_cal.F: compute only one set of visc/diff, used to
191        step forward TKE/T/S/momentum
192      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
193        have Prandlt =1)
194    o gmredi (fm07):
195      - add lower limit on Transition layer thickness + lower limit on 1/lambda
196      - allow to set few more params from data.gmredi
197    o pkg ggl90:
198          - add missing sqrt(2) factor in computation of mixing length
199            scale in ggl90_calc.F
200            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
201    
202    checkpoint61d
203    o adjoint modifs
204      - adapt to new field rhoInSitu
205      - allow to revert from StoreDynVars2D, StoreDynVars3D
206        to individual fields
207        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
208    o store 3-D (in-situ) density in commom block (DYNVARS.h)
209     - save 1 rho computation.
210     - no longer modify T & S inland when using down_slope pkg.
211    o gad_som : allow to switch to SOM advection for T & S without corresponding
212      pickup files (using new S/R: MDS_CHECK4FILE).
213    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
214      (for useSingleCpuIO to work in multi-threaded)
215    o pkg/shelfice:
216     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
217       with SHELFICEtopoFile in data.shelfice
218     - move code for reading ice shelf topography and modifying hFacC into separate
219       subroutines of the shelfice package
220     - separate initialisation of "fixed" and "variable" variables
221     - kTopC is not (yet) replaced by kSurfC, although this is possible
222    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
223    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
224      and rename:
225      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
226      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
227    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
228    
229    checkpoint61c
230    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
231      to add mass source/sink of fluid in the interior (3-D generalisation
232      of oceanic real-fresh water flux).
233    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
234    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
235    o new pkg: down_slope
236      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
237      - presently, modify T & S inland (dwnslp_calc_rho.F).
238        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
239      - implementation for ocean in P-coords not tested.
240      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
241    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
242      (to facilitate conversion of oceanic pkg to p-coordinate).
243    o change FIND_RHO to FIND_RHO_2D :
244      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
245    o new pkg: cheapaml
246    
247    checkpoint61b
248    o exch2:
249      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
250      - no longer depend on the order sequence (N,S,E,W).
251      - 3rd exchange no longer needed (tested with 24 tiles).
252      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
253      - exch_UV_A-grid readily available (but not yet tested).
254      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
255      (both are no longer needed) in exch_uv: no effect in forward run; but
256       get truncation error differences with adjoint exch.
257    o exch2:
258     - change index-bounds storage (moved from target to local tile,
259       more intuitive this way) ; rename/remove some variables.
260     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
261    
262    checkpoint61a
263    o exch2/matlab-topology-generator:
264      fix bug in index bounds for N-S internal exchange (hard to tell if this
265      had any effect on the solution).
266    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
267      is exceeded
268    o testreport: modify syntax of awk, so that it works also with
269      awk, and not only with nawk and gawk
270    
271    checkpoint61
272    o autodiff
273      Change default for TAF usage by removing argument '-nonew_arg'
274      This changes TAF subroutine argument list (ordering of active var.)
275      Omission of this flag leads to incompatibility w.r.t. TAMC
276      To restore TAMC-compatibility, need following modifs:
277      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
278      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
279      Tested TAF version is 1.9.22
280      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
281    
282    checkpoint60
283    --->>> This is the last checkpoint for which generating the adjoint
284    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
285    --->>> by default.
286    --->>> Future checkpoints will ommit this flag by default.
287    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
288    o pkg/grdchk: Add gradient check to etan0 perturbations.
289    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
290    o pkg/autodiff: more flexibility in zeroadj.
291      model/src: modifying do_oceanic_phys.F accordingly.
292    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
293    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
294      special setup of gmredi for which the adjoint is stable
295      enough for parameter optimization.
296    o bridging the gap between eddy stress and GM.
297      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
298          along with a change in CPP option (now ALLOW_EDDYPSI).
299      -> when using GM w/ GM_AdvForm:
300          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
301          is applied either in the tracer Eq. or in momentum Eq.
302          depending on data.gmredi (intro. GM_InMomAsStress).
303      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
304      The key modifications are in model/src/taueddy_external_forcing.F
305      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
306    
307    checkpoint59r
308    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
309      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
310      fix option to read coriolis(@ cell-corner) from files with CS-grid.
311    o pkg/mnc: add some attributes to standard 1D-coordinate variables
312    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
313      mass points, when using mnc for output
314      - add runtime parameter (missing_value, missing_value_int) to override
315        default (which is the value of getcon('UNDEF'))
316    o pkg/mnc: prepare mnc for the actual use of missing values with the
317      diagnostics package: small fix in mnc_cw_readwrite.template and more
318      initialisation of never used fields
319      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
320      versions
321    o pkg/thsice/thsice_ini_vars.F added default initial values so that
322      thermodynamics sea ice solver does not blow up when some initial fields
323      are missing.
324    o move from external_forcing_surf.F to ini_forcing.F
325      the p-coord. hack consisting in using pLoad to set phi0surf ;
326      update output of tutorial_global_oce_in_p (affected @ truncation level).
327    o Freshen up a bit hs94.1x64x5, notably:
328      remove rotationPeriod and tRef=5*0. (adjoint only), and add
329      exactConserv=.TRUE.
330    o pkg/generic_advdiff:
331      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
332      applies to files where Temperature & Salinity 2nd Order moments are used.
333    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
334      this uses a dynamically allocated internal state data structure
335      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
336      and requires a fortran 90 compiler
337    
338    checkpoint59q
339    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
340       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
341    o Refresh tutorial_global_oce_biogeo, notably:
342      - change bathymetry (put back seamounts in ACC, use hFacs)
343      - change EOS (POLY3 --> JMD95Z)
344      - use Bryan-Lewis vertical diffusivity
345      - use multidimensional advection
346      - remove old virtual virtual in dic pkg, now done through ptracer pkg
347      - change a couple of parameters in dic pkg
348    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
349    o pkg/obcs: change default to OBCSfixTopo = .true.,
350      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
351      - replace "debugMode" with "debugLevel .GE. debLevB"
352    o implementation of TAF directives for gchem,cfc,dic
353    o remove "exp5" (replaced by tutorial_deep_convection).
354    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
355      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
356      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
357      --> changes results in exp4, seaice_obcs
358    o tutorial_deep_convection :
359      update the set-up and increase resolution and domain size ; start
360      from pseudo initial conditions = output at t=120mn in order to see
361      something happening when running testreport.
362    o pkg/seaice: add os7mp as an advection scheme
363                  add check for advection schemes
364                  add a flag for restoring T and S underneath sea ice
365    o pkg/my82: add netcdf-support and diagnostics
366    o thsice pkg:
367      - Now hsMax limits snow height by turning it into ice following
368        flooding scheme (and now conserving energy)
369      - Slight rewriting of the formula in thsice_calc_thick.F
370      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
371      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
372    
373    checkpoint59p
374    o gchem / dic / cfc :
375      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
376      - add new parameter files: "data.dic" & "data.cfc" ;
377      - various re-arrangement in initialisation & header file ;
378      - fix tutorial_global_oce_biogeo for multi-threaded test.
379    o pkg/dic: test for "pickup_dic" file when restarting ;
380      if no pickup-file, can restart with a re-initialised pH (same as it did
381      before) providing pickupStrictlyMatch is set to False.
382    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
383      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
384    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
385      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
386    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
387     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
388       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
389    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
390       scheme to use for vorticty-term ;
391     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
392       (with default selectVortScheme, return to original discretisation)
393     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
394    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
395    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
396      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
397      also fix diagnostics VISCAHW & VISCA4W.
398    
399    checkpoint59o
400    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
401    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
402      move a few statemens out the main loop into separate loops
403    o pkg/shelfice:
404      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
405        (kg/m^2/s), does not break tests, because in verification/isomip,
406        rhoConstFresh=rhoConst (by accident)
407      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
408      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
409        new file model/src/seawater.F, so that they are available for all pkgs.
410      - convert potential temperature into in-situ temperature. This changes the
411        isomip tests => update tests
412    o add a flag writePickupAtEnd (default=true) to be able to suppress
413      writing a pickup at the last timestep
414    o tools/mpack-1.6 :
415      - disable automake (not working) and autoconf (not needed).
416      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
417        also cleaner with much less compilation warnings.
418    o pkg/profiles:
419      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
420      (for "less than 32 characters name" compiler requirement)
421    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
422      conditions that have a different sampling frequency than S/T/U/V obcs
423    o pkg/diagnostics (stats-diags):
424      - fix global Min/Max in case 1 processor get only empty tiles
425    o genmake2: replace (4 times)
426         make genmake_tc_1.o >> genmake_warnings 2>&1
427      with
428         COMM="$CC $CFLAGS -c genmake_tc_1.c"
429         echo $COMM >> genmake_warnings
430         $COMM >> genmake_warnings 2>&1
431      to make genmake2 always see the value of CC as specified in the optfile.
432    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
433      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
434      - modify verification advect_cs test to test SOM-advection on CS-grid.
435    o pkg/ctrl:
436      - Rewrite of ctrl_map_ini_ecco.F,
437        introducing a generic routine (ctrl_map_ini_gen.F).
438      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
439    
440    checkpoint59n
441    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
442      number in dedicate array "hdiag":
443      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
444        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
445      - many small changes (integer format) for large number of diagnostics
446      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
447        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
448    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
449      usingSphericalGrid, this allows to define the rotated grid coordinates
450      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
451      geographical coordinates according to the inverse of the rotation defined
452      by the Euler angles, so that Coriolis parameter and online-interpolation by
453      exf works with the geographical coordinates on XC/YC/XG/YG.
454      Naturally, this feature does not work with all packages, so some
455      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
456      profiles), because there the coordinates are assumed to be regular
457      spherical grid coordinates.
458    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
459      - introduce isopycnal diffusion coefficient control.
460    o tools/adjoint_options:
461      - additional control vector components.
462    o pkg/mnc: have mnc create marginally meaning full coordinate variables
463      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
464    o pkg/mypackage:
465      - add example of read/write pickup for state-var ;
466      - add entry points to the main code for state-vars diags & write-pickup.
467    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
468      transitions for useExfYearlyFields
469      - add new subroutine that determines the file to read from for
470        use*YearlyFields = .TRUE. and .FALSE.
471      - add a verification experiment to global_with_exf that tests
472        useExfYearlyFields with USE_EXF_INTERPOLATION defined
473    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
474      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
475      subroutines (which could be generated from a template, because they are
476      almost identical), for now they are included in obcs_prescribe_read.F for
477      simplicity
478    o pkg/exf:
479      - add a little more diagnostic to exf_interp_read (in analogy to
480        mds_read_field, can be turned off with debugLevel < debugLevA=1)
481      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
482        ugly but fast by unrolling short inner loops, inserting a unroll=8
483        directive in routine lagran, and splitting a loop and making do while the
484        outermost loop (the latter requires the intoduction of index arrays)
485    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
486    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
487      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
488    o verification/seaice_obcs: updated for restart test and latest options
489    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
490      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
491      for now this is only available for the C-grid code and also within
492      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
493    
494    checkpoint59m
495    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
496      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
497    o gad_som : fix flux output (& diagnostics) to have same units as other  
498      advection scheme fluxes (was previously multiplied by deltaT).  
499    o added verification/seaice_obcs both to test seaice open boundaries
500      and to provide an example matlab scrpt for generating them
501    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
502    o pkg/salt_plume: clean up salt_plume_frac.F to
503      remove redundancy in PlumeMethod 1 and 4
504    o pkg/kpp: added saltplume diagnostics
505    o pkg/obcs and pkg/seaice:
506      - do not set uice and vice to zero when OB*icefile are unspecified
507      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
508      - moved seaice tracer obcs after call to seaice_growth
509    o pkg/salt_plume: added various options for salt plume depth
510      criterion and for vertical distribution of the salt
511    
512    checkpoint59l
513    o pkg/ptracers: new version of ptracers pickup:
514      read meta file and write only fields which are needed to restart.
515      ( same logic as main pickup file ; also using pickupStrictlyMatch )
516    o pkg/seaice:
517      - add timescale for melting due to warm mixed layer as a means of
518        setting SEAICE_availHeatFrac more conveniently
519      - add a CPP-flag/runtime parameter check for flooding algorithm
520      - reformulated availHeat in seaice_growth.F to be independent of AREA
521    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
522      unit changes
523    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
524    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
525      SX vector computer.
526    o pkg/seaice:
527      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
528        seaice forcing fields can now be read only through pkg/exf
529      - removed some unused halos
530    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
531    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
532      or U/VICE from U/VWIND before computing U/VSTRESS
533    
534    checkpoint59k
535    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
536      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
537    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
538      all experiments pass when compile with un-initialised var. checking option.
539    o added pkg/salt_plume
540    o script to test restart (for now, in MITgcm_contrib/jmc_script)
541    o pkg/seaice: new read/write pickup version.
542      read meta file and write only fields which are needed to restart.
543      ( same logic as main pickup file ; also using pickupStrictlyMatch )
544    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
545    o lab_sea.hb87: modify the domain & update output.hb87.txt :
546      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
547      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
548      process. Fixed here by closing the domain at the Northern boundary.
549    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
550    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
551      a set of consecutive levels in/from a 3-D array.
552    o pkg/ptracers:
553      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
554      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
555    
556    checkpoint59j
557    o in pkgs: dic, obcs, offline, rbcs:
558      standard way to compute coeff. for time interpolation between 2 time reccords
559      which retains full precision (& make results less dependent on compiler).
560      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
561    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
562      packages instead of reading ice cover and wind speed separately
563    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
564     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
565      to allow to compile customized code before the update)
566    o cleaning-up:
567      - fix CPP instruction syntax in pkg/obcs
568      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
569        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
570      - fix some threads issue in IO parts.
571    o pkg/dic:
572      - add tons of "_d 0" (--> much better testreports !)
573       and then update outputs of tutorial_global_oce_biogeo
574    o pkg/mom_fluxform:
575      add a special version of momentum advection intended to conserve momentum
576      next to a bathymetry step or a coastline edge. (default = off = #undef)
577    o new read/write pickup version:
578      - for now, only implemented for main (mdsio) pickup file.
579      - write out only what is needed to restart; merge pickup_nh , pickup_ph
580        and main pickup together.
581      - read meta file; read only what is needed to restart; stop if a field
582        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
583        if it make sense (even if the restart is not perfect).
584      - if no meta file, assume that pickup to read corresponds exactly to
585        a pickup that would currently be written.
586      - read pickup written in the old format (until checkpoint59i) if it
587        recognizes an old meta file (no field-list).
588      - add a meta file in exp. which starts from a pickup: 2 cases:
589        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
590         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
591        b) a meta file describing the content of the associated pickup file
592         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
593    o pkg/mdsio & pkg/rw:
594      - new routine to read a meta file ; new set of routine to read
595        Multiple-fields file (with meta file).
596    o added open boundary conditions capability for seaice
597        HSNOW, HSALT, UICE, and VICE
598    
599    checkpoint59i
600    o adjoint:
601      * fix multiDimAdvection adjoint
602        (partial recomputation problem by TAF for fVerT(:,:,kDown)
603        and comlev1 size definition (maxpass vs. max. number of tracers)
604      * verification/global_ocean.90x45x15 adjoint now tests
605        NLFS and multiDimAdvection using DST3 (=30)
606      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
607    o pkg/kpp: add "_d 0" to real constant (if missing);
608      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
609      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
610    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
611      for internal parameters related to restart process (formerly from PARAMS.h)
612      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
613    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
614      as argument. (only atm2d & obcs write_pickup have not yet been updated)
615    o pkg/monitor:
616      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
617      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
618      - account for deep Atmosphere factor and density factor (anelastic)
619    o added open boundary conditions capability for seaice HEFF and AREA
620    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
621      thermodynamics
622      - requires a little reorganization, which affects the testreport results
623        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
624        so that now the conservative form is tested
625      - add a few comments
626    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
627    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
628    o add new diagnostics to seaice: advective, diffusive fluxes (only for
629      multidim-advection, for scheme 2 they are not filled) and transports,
630      thermodynamic growth rates
631    o change units of EmPmR (inside the code, + within coupling interface)
632      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
633      Affects results @ truncation level (cg2d match) and update output of
634       experiments: lab_sea(6), global_ocean.90x40x15(10),
635      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
636      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
637      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
638      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
639    
640    checkpoint59h
641    o pkg/exf:
642      - improve vectorization by moving if-statement out of loops in
643        exf_mapfields, exf_radiation
644      - exf_bulkformulae.F: introduce 2D fields and vectorize code
645    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
646    o testreport:
647      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
648        monitor & update offline_exf_seaice exp. output.
649      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
650    o pkg/seaice:
651      - bug fix in the evp solver: boundary conditions were affected be
652        masking of zMax/zMin (changes results)
653      - minor bug fix in boundary conditions in seaice_calc_strainrates
654        (changes results for no_slip)
655      - seaice_lsr.F: make interpolation of eta dependent on boundaries
656      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
657      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
658        stress formulation and no-slip boundary conditions
659    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
660      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
661    o pkg/seaice: a first HSALT time stepping equation has been checked in
662    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
663      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
664      without requiring DO-IF statements
665    o pkg/thsice:
666      use continuous power-law function for partition of energy between lateral
667      melting/freezing and thinning/thickening ; old code using step function
668      still available with #undef THSICE_FRACEN_POWERLAW
669      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
670    o testreport: change AD testing : check against results/output_adm.txt
671      using same scripts as for forward test.
672    
673    checkpoint59g
674    o adjoint testing: in preparation for changing testreport:
675      - output format: cost and grad written on separated lines
676      - ad output results in directory "results" (instead of "results_ad")
677    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
678    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
679    o pkg/ecco: allow user defined cost function contributions
680    o testreport:
681      Allow to choose (per experiment) the list of tested output variables
682       and the main variable (used to issue a pass/FAIL ) ;
683      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
684      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
685      Also modify printing of summary:
686       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
687       b) echo the list of tested variables in the individual summary.txt of
688          each experiment.
689    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
690      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
691      (but still depend on the tile decompostion of the domain).
692    o pkg/seaice: change a discretization detail to make the B-grid code
693      "more symmetric". This change is likely to remove all "ridges/leads" that
694      where quasi-aligned with the grid in B-grid solutions. It may also be
695      the solution to the stress coupling issues with the B-grid.
696    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
697      remove .cvsignore from input dir. (since testreport no longer run here).
698    o pkg/thsice:
699     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
700     - fix reshaping of sea-ice just after advection:
701       melt all the ice only if ice-volume is too small.
702     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
703       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
704     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
705    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
706      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
707    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
708      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
709      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
710      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
711      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
712      -> update output.txt
713    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
714     this affects truncation error: -> update output.txt of exp:
715      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
716      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
717    
718    checkpoint59f
719    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
720    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
721      a bounded range (in forward mode)
722    o pkg/ecco, ctrl, autodiff and mom_common:
723     internal parameter controls, completements of implementations
724    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
725    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
726      (not seem any difference in testing results).
727    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
728       at face corners.
729    o pkg/generic_advdiff:
730     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
731      loop range indices for computing vertical advection tendency
732      and do the calculation in the interior only (no overlap) ;
733      for now, only implemented for SOM advection (to save CPU time).
734     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
735    o exch2 adjoint
736      First set of changes:
737      - add exch2 hand-written adjoint templates
738      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
739        This will require cleanup in pkg/autodiff/*.F
740        (changed routines currently kept separate in verif. code/)
741      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
742        that used to hide exch2 or cubed-sphere specific code
743        (commented via 'cph-exch2')
744    o pkg/seaice
745      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
746    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
747       output of global_ocean.cs32x15.thsice .
748    
749    checkpoint59e
750    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
751      for B-grid vector (not yet tested) and C-grid vector (<- only used
752      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
753    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
754      (#ifdef ALLOW_SALT_PLUME)
755    o gather_2d/scatter_2d: removed halo regions
756    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
757      scheme and the corresponding test case (under front_relax dir). For now,
758      only available with Skew-flux form and not yet tested in realistic set-up.
759      adjoint: store directives updated, but gradient checks deteriorated,
760      so maybe GM/Redi adjoint is now broken.
761    o seaice adjoint
762      * add AREA, HEFF, HSNOW as control variable
763        (should not change lab_sea results)
764      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
765    o pkg/seaice:
766      * added computation of saltFlux in seaice_growth;
767        For time being, sea ice salinity is assumed constant
768        contribution of snow flooding to freshening of sea ice is neglected.
769        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
770        defaults to 0.0 in order to maintain backward compatibility.
771        Typical values for SEAICE_salinity are 4 to 10 g/kg.
772      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
773      * added SEAICE_availHeatFrac, which specifies fraction of surface level
774        heat content used to melt or grow ice
775      * commented out cap of HICE: it helps keep ice thinner
776      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
777      * applied OBCS T/S mask to HEFFM sea ice mask
778    
779    checkpoint59d
780    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
781     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
782     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
783    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
784     and change default value of parameter "GM_Small_Number";
785     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
786       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
787       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
788    o pkg/ecco: cost function when applying pkg/smooth to controls
789    o pkg/ctrl: add forcingPrecond run time parameter
790    o pkg/seaice:
791     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
792     - fix bug in metric terms of u-equation in LSR solver (implicit part),
793       changes verification/lab_sea
794     - rearrange implicit part of u-equation in LSR solver to make it easier to
795       read, understand, and debug. This causes changes at the truncation level.
796     - fix (serious) bug in the boundary conditions (sign error in the implicit
797       part) of the LSR solver. Changes all LSR results.
798     - fixed problem with HSNOW initialization to avoid thick snow when AREA
799       is initilized with small values - does not change lab_sea results.
800     - added HsnowFile initialization capability
801    o pkg/smooth: addition to model/src and pkg/ctrl so allow
802     initialization of pkg/smooth and application to control vector
803    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
804    o dependencies: pkg/profiles requires pkg/cal
805    o pkg/profiles:
806     - added option ALLOW_PROFILES_GENERICGRID
807         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
808         that interpolation information (grid points and coefficients) is provided
809         within the netcdf input files.
810         -> sample matlab scripts can be found in MITgcm_contrib/gael
811         that allow you to prepare netcdf input files.
812     - also modified: cleaner include statements, cleaner error print statements,
813       cleaner stops when error, and more tests of the netcdf input files consistency.
814    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
815    o pkg/seaice:
816     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
817       requires a new routine: seaice_diagnostics_fill.F
818     - make sure that seaice does not move if not forced (pressure replacement
819       method, Hibler and Ip, 1995), changes results
820     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
821     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
822       It is turned off by default (=-1.), because it changes the results.
823     - make it possible to read AREA from a file, too.
824    
825    checkpoint59c
826    o add S/R and diagnostics for oceanic mixed-layer depth
827    o move GMRedi call after all vertical mixing schemes (including KPP)
828    o pkg/thsice:
829     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
830      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
831    o pkg/obcs:
832     - bug fix for balance code
833    o pkg/seaice:
834      - allow values of SEAICE_elasticParm > 1
835      - add new parameter SEAICE_evpTauRelax as an alternative
836        to SEAICE_elasticParm
837      - make lsr boundary conditions free slip (by default), changes result
838      - add code for no slip boundary conditions for lsr
839      - set minimum of zeta to zero (and not 4e8) (changes results)
840      - add a cap on AREA after advecting AREA if seaice_growth is not called
841    o change calculation of Visbeck K:
842      - no longer depend on tapering scheme; instead, compute slope (limited
843        by GM_maxSlope). this is equivalent to what was comuted before with
844        clipping or linear tappering.
845      - fix vertical averaging (wrong by 1/2 level)
846      - leave the old version (but will not be maintained) within
847        #ifdef OLD_VISBECK_CALC / #endif
848      - update output of exp. ideal_2D_oce
849    o change error catch in calc_r_star to improve vectorization
850    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
851      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
852    o adjoint:
853      Re-organized adjoint checkpointing according to Matt Mazloff
854      (but with modifs/completions/cleanups)
855      Storing is now bundled into large arrays to optimized I/O
856      (and second step in cleanup of the_main_loop)
857    
858    checkpoint59b
859    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
860      - export/import (between ocean & coupler) fields needed for ocean DIC.
861    o pkg/seaice:
862      - get rid of three more exchanges seaice_calc_viscosities (required
863        different loop boundaries in seaice_lsr and seaice_ocean_stress)
864      - bug fix in seaice_ocean_stress (update of lab_sea required)
865      - reduce loop boundaries to necessary minimum also in seaice_evp
866      - go back to the old way of computing deltaC/Z as the adjoint likes that
867        better
868    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
869      passive tracer to an Age Tracer) + update output.txt
870    o pkg/exf:
871      - implement A-grid / C-grid selection for wind-stress input files.
872      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
873      for now, in exf_bulk_largeyeager04.F only :
874      - change implementation for case where windspeed + 2. components wind-stress
875        are read-in. AND use rhoConstFresh to convert evap.
876    o pkg/seaice:
877      - use correct EXCH_UV for wind-forcing (on A-grid).
878      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
879        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
880    o pkg/exf:
881      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
882      EXF_INTERPOLATION:
883      - merge global_with_exf/code version of exf_interp_read.F
884        to the main code ;
885      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
886        reading the file ; Important: This options needs to be defined to recover
887        previous code.
888        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
889      - no longer loose real*8 precision along the way when using exf_iprec=64.
890    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
891      - change discretisation of evp-solver in order to avoid another exchange
892        (changes lab_sea) and clean up a little
893      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
894        help the adjoint (this also changes the results slightly)
895      - add a few "_d 0" where they had been missing in seaice_evp.F
896      - cleaning up: remove unused seaice_calc_rhs.F
897    o pkg/exf: some cleaning-up:
898      - change various "constants" into runtime parameters
899      - cleaned-up Large&Yeager04 routine which should eventually
900        replace exf_bulkformulae.F (changed names of S/R and CPP)
901        and merged various ALLOW_ATM_WIND options
902     only used with thsice pkg (in thsice_get_exf.F):
903      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
904        which are used when useStabilityFct_overIce=TRUE (= the default)
905      - change default values of ice & snow emissivity and scale downward LW
906        by ice & snow emissivity.
907    o pkg/thsice:
908     fix few little problems, in thsice_calc_thickn.F:
909      - growth vertically (and not laterally) if iceFrac == iceMaskMax
910      - melt only laterally if hIce < hThinIce (as the comments say)
911      and in thsice_extend.F:
912      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
913      - start to form ice as soon as the minimum ice-volume is reachable.
914     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
915      and cpl_aim+ocn
916    o pkg/kpp
917     - move computation of surface related input fields to KPP into a new
918       subroutine kpp_forcing_surf.F
919     - remove wrong (within bi,bj loops) EXCH calls.
920     - little cleaning (add argument myThid in last position, cvs header ...)
921     - for now, fix conservation problem by exchanging KPPviscAz (may not
922       be the best fix)
923    o pkg/seaice
924     - check for inconsistent evp parameter/cpp-flag combination
925     - remove leftover errIO flat for obsolete name list error handling
926    o OpenAD
927     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
928    
929    checkpoint59a
930    o pkg/seaice: some parameter clarifications and a little bit of clean up
931    o pkg/thsice: rename run-time parameters:
932       himin       -> hIceMin
933       himin0      -> hThinIce
934       hihig       -> hThickIce
935       i0          -> i0swFrac
936       transCoef   -> bMeltCoef
937       frac_energy -> fracMelting
938      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
939       with default values (for now) that do not change the results.
940      remove old version of thsice vars advection in pkg/seaice.
941    o in FFIELDS.h:
942      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
943      - make pLoad & sIceLoad always available (but still only used if
944         ATMOSPHERIC_LOADING is #define).
945    o pkg/kpp: replaced _KPP_RL with _RL
946    o bug fixes for vertical diffusivity computations when both KPP and
947        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
948        are no longer updating the vertical diffusivity array
949        (passed as argument) but are (re-) setting those arrays.
950    o pkg/seaice: fix bug in evp solver, while doing that
951      - change (improve?) discretization of stress computations for both
952        cgrid-lsr and evp solver
953      - add a new routine to compute strain rates
954      - the above changes lab_sea results
955      - add no slip conditions for evp solver (off by default), lsr-version
956        may follow
957      - fix exchange for shear at Z-points (does not change lab_sea)
958      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
959        (to force the user to pick a time step since there is not "safe" way
960        of choosing it)
961      - add principal stress diagnostics
962      - rearrange fields for evp a little to avoid having to call a: too many
963        exchanges and b: exchanges for stress trensor components which we do
964        not have.
965      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
966        of evp, complete rewrite for lsr case (latter is does not yet work
967        in all cases)
968    o pkg/kpp: add code to have mixing in shelf ice caverns
969      - add myThid to all kpp routines (long overdue)
970    
971    checkpoint59
972    o pkg/exf:
973      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
974        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
975      - move exf header files from lower_case.h to UPPER_CASE.h ;
976        add missing cvs Header & Name
977      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
978      - add namelist param. selectStressGridPosition, exf_monFreq
979      - retire many _CLIM routines, and remove data.exf_clim
980        + params moved to data.exf
981        + climsst, climsss now handled by exf_set_gen, i.e.
982          climss?period=0 refers to constant field,
983          climss?period=-12 to monthly forcing
984      - split up namelists in data.exf
985    o pkg/seaice:
986      - remove seaice_exch and seaice_exch_uv
987      - remove superfluous exchange of theta
988      - add myThid to seaice_budget_ocean/ice
989      - add new interface for atmospheric wind forcing (C-grid only)
990        + new routine
991        + two new field (taux, tauy for stress over ice)
992        + removed one global field (DAIRN) for C-grid case only
993    o pkg/thsise
994      - 2nd set of modifs for thsice adjoint in conjunction with exf
995    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
996    
997    checkpoint58y_post
998    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
999      vertical diffusivity, similar to that in MOM4; turned on using
1000      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1001      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1002    o Added capability for 3D specification of background vertical diffusion
1003      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1004      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1005      "data" file that contains the 3D vertical diffusivity coefficients.
1006    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1007      - add code within pkg thsice to advect & diffuse sea-ice fields
1008      similar to (and will replace) what has been added in  seaice_advdiff.F,
1009      but: - conserving Mass, Heat & Salt.
1010           - better when using non-linear advection scheme (not yet fully tested)
1011           - can also be used in atmospheric set-up (for now, only the diffusion).
1012    
1013    checkpoint58x_post
1014    o IO option for global-file compact format:
1015      - add options when generating topology (utils/exch2/matlab-topology-generator)
1016      - add I/O capability (pkg/mdsio).
1017      - adapt utils/matlab/rdmds.m to read this format.
1018      for now long-line format not yet supported by pkg/mdsio (& exch2).
1019    o shelfice: add a few diagnostics
1020    
1021    checkpoint58w_post
1022    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1023      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1024      (and replace horiVertRatio in NH code).
1025      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1026                         and tutorial_plume_on_slope (sensitive to truncation)
1027    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1028      directly to drive seaice model (C-grid only)
1029    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1030     - reintroduce computation of wind from stress,
1031     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1032       mass points to avoid tau = 0
1033     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1034    o rdmnc.m: make it work with "global" files created with gluemnc
1035    o rdmnc.m : some improvements in dealing with singleton dimension
1036      (tested on all testreport mnc output files).
1037    o genmake2: disable pkg/profiles if netcdf test fails.
1038    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1039    o move call to cal_readparms up to make calendar parameters/variable available
1040      to all packages
1041    
1042    checkpoint58v_post
1043    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1044      useDynP_inEos_Zc tested.
1045    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1046    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1047      and portions thereof.  See read_cs.txt for description and examples.
1048    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1049      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1050      following the great-circle arc between those 2 points.
1051    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1052      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1053    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1054     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1055     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1056     - still needs work (not working with some options ; efficiency to improve)
1057       and serious testing.
1058     - use this scheme for temperature & salinity in 2 advection test exp.:
1059       advect_xy & advect_xz, respectively.
1060    
1061    checkpoint58u_post
1062    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1063    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1064    o testreport: add option "-skipdir" to skip some test.
1065    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1066      momentum calculation.
1067    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1068    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1069      remove checkpoint.F and the_correction_step.F (no longer used);
1070      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1071    o add option (linFSConserveTr) to correct for tracer source/sink due to
1072      Linear Free surface
1073    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1074    o pkg/thsice: fix reading mnc-pickups
1075    
1076    checkpoint58t_post
1077    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1078    o pkg/mdsio:
1079     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1080       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1081       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1082     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1083     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1084       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1085     - new S/R (to replace MDSWRITEMETA), which allows to write more
1086       informations (variable names, time ...) to meta files.
1087     - modify rdmds.m to give back the meta file content.
1088    o pkg/diagnostics: change vertical interpolation to be safer, and more
1089       flexible (define p-levels to interpolate to in data.diagnostics);
1090      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1091       diagnostic pointer.
1092    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1093    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1094    o fix multi-category seaice:
1095     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1096       SEAICE_MULTICATEGORY
1097     - fix short wave heat flux
1098    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1099       and allow to use EVP solver. Change forward lab_sea: test both EVP
1100       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1101    o Initial check-in of lab_sea adjoint
1102      (very similar to natl_box_adjoint/code_seaice)
1103      * used C-grid and EVP solver
1104      * used KPP, GM/Redi
1105      * uses inAdExact=.TRUE.
1106      * gradient checks fail for both ADM and TLM
1107        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1108        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1109        issue is related to forward mismatch between g77 an ifort
1110    o pkg/seaice: overhaul of thermodynamics
1111     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1112     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1113     - move a few global fields out of SEAICE.h into seaice_growth.F and
1114       make them 2D (FICE/QNETO/ ...)
1115     - remove FO (it is the same as QNETO)
1116     - introduce a few local fields to avoid modifying external fields such
1117       as atemp, etc.
1118    
1119    checkpoint58s_post
1120    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1121      changed exf_set_gen.F so that
1122        genperiod=0 means input file is one time-constant field and
1123        genperiod=-12 means input file contains 12 monthly means
1124    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1125      this affects truncation error ; generate new output file for exp. which
1126      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1127        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1128        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1129        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1130        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1131        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1132    o start implementation of deep-atmosphere and anelastic formulation
1133    o verification: remove 2nd copy of input files and use script "prepare_run"
1134      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1135    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1136    o profiles: fix for multithreaded case
1137    
1138    o diagnostics: rename few diags:
1139      s/'PRESSURE'/'RCENTER '/g
1140      s/'TICE    '/'oceFreez'/g
1141      s/'TAUX    '/'oceTAUX '/g
1142      s/'TAUY    '/'oceTAUY '/g
1143      s/'SWFLUX  '/'oceQsw  '/g
1144      s/DIFx/DFxE/g
1145      s/DIFy/DFyE/g
1146      and add few ocean-forcing diagnostics:
1147      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1148    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1149      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1150      as actual snow thickness.  It now refers everywhere to effective snow
1151      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1152    
1153    checkpoint58r_post
1154    o modifications to pkg/seaice/growth.F, which change results of
1155      lab_sea experiment: fixes pertain to melting snow over open water, to
1156      masking EVAP under sea ice, and to using the correct AREA variable for
1157      computations of EVAP, PRECIP, HSNOW, and GHEFF
1158    o add ability to read bathy, salt, and theta using MNC (off by def)
1159    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1160      both are turned off by default and do no change any results
1161    o seaice advection with pkg/thsice: a step toward the use of non-linear
1162      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1163    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1164      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1165      in natl_box (affects results @ truncation level: update output.txt)
1166    o multi-threading and IO:
1167      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1168      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1169        (needed to work with SingleCpuIO): tested in all verif. exp.
1170    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1171      affects the results (but none of the verification test uses this scheme).
1172    o Adding some pkg/diagnostics capability to pkg/seaice
1173      (will certainly be subject to changes)
1174    o ctrl: adding new control variables:
1175      lwflux, lwdown, evap, snowprecip, apressure, runoff
1176    
1177    checkpoint58q_post
1178    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1179      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1180      high_res_cube configuration by 4% on Columbia.
1181    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1182      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1183      dynamical allocation (seems to work in multi-threaded).
1184    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1185      single CPU io) so that TAF does not have to see EESUPPORT.h
1186    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1187    
1188    checkpoint58p_post
1189    o obcs: stop if obcs is used with useCDscheme = .true.
1190    o shelfice:
1191     - fix a sign error so that no slip at shelfice interface works
1192     - remove stop for combination non-hydrostatic code and shelfice. That does
1193       not mean, that the results are correct, but at least they are numerically
1194       stable
1195    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1196    o added adjoint exch routined for all exch*3d* routines
1197      and updated flow directives
1198    
1199    checkpoint58o_post
1200    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1201      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1202    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1203      and clean-up reading/writing of pickup files.
1204    o fix local version of read/write pickup (NH part) in rotating_tank/code
1205    o simplify EXCH interface:
1206     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1207     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1208    o added the regrid package
1209    o shelfice:
1210     - add a simple boundary layer scheme to reduce noise
1211     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1212    
1213    checkpoint58n_post
1214    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1215       local variable (not in common block).
1216    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1217      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1218      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1219        to work with SingleCpuIO.
1220    o add "_d 0" to real constant of pkg/cfc subroutines ;
1221       update exp. cfc_exemple & tutorial_cfc_offline output files.
1222    o multi-threading and IO:
1223      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1224        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1225      - barrier before and after reading.
1226      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1227      - avoid using MDS_WRITELOCAL for LAND pkg output.
1228      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1229        common-block variables ; Allows multi-threading with master-thread IO.
1230    o change default MAX_NO_THREADS from 32 to 4 ;
1231      and stop cleanly when MAX_NO_THREADS is too small.
1232    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1233    
1234    checkpoint58m_post
1235    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1236       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1237    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1238       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1239       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1240    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1241        add MITgcm_tutorials (= code + all the tutorials)
1242    o ecco, option to compute cost for total ssh (mean+anom)
1243    o consistent with addition of ptracer and ssh in pkg/profiles
1244    o profiles: adding ptracer and ssh
1245    o testreport: change multi-test output-file name
1246      (from output.txt.{name} to output.{name}.txt)
1247    o profiles: now ok for mutli-tiles case
1248    o seaice: add 4 parameters for different advection schemes for area,
1249      (effective) seaice thickness, enthalphy, and snow height. Their default
1250      is the standard parameter SEAICEadvScheme
1251    o calc_gw:
1252     - add cosFacU in zonal viscous flux (harmonic.visc.).
1253     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1254       of tutorial_plume_on_slope.
1255    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1256    o calc_gw: true flux-form, account for horizontal grid spacing.
1257      update rotating_tank results, but not plume_on_slope (affected at
1258      truncation level, 11 digits).
1259    
1260    checkpoint58l_post
1261    o calc_gw:
1262     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1263     - remove side-drag for now (need to fix it); update plume_on_slope results.
1264     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1265    o commit code to make SST/SSS weights spatially variable
1266      (based on either variable in-situ or variable initial T/S weights)
1267    o pkg/ecco:
1268      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1269        now based on horizontally varying weights wthetaLev, wsaltLev
1270      * cost_averagesflags now returns year indices in addition to day, month
1271      * sflux balance is performed on annual basis
1272        (sflxumm, sfluxmm2, bal_sfluxmm)
1273      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1274        including separate counting and multipliers
1275    o pkg/rbcs
1276      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1277    
1278    checkpoint58k_post
1279    o testreport:
1280     - always build in dir. "build" (if not there, mkdir build instead of building
1281       & running in input)
1282     - run in dir run (if it exists), in build otherwise.
1283     - call prepare_run (if input/prepare_run exists)
1284     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1285    o pkg/exf modifications to interpolation and rotation routines for more
1286       reasonable treatment of North Pole singularity: for tracers North Pole
1287       value is set to northernmost zonal-mean value, for zonal velocity it is
1288       set to zero, and for meridional velocity it is set to northernmost value.
1289    o pkg/exf/exf_check_range.F
1290     - add tile index to diagnostics and move stop statement to the very
1291       end of the routine.
1292    o pkg/diagnostics: (diagnostics_main_init.F)
1293      define title of isomorphic variables according to the current config.
1294    o pkg/thsice with pkg/seaice dynamics:
1295    - fix domain of computation (interior only, required for exf) and do exchanges
1296    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1297    o towards a standard way of dealing with multi-threading in MONITOR
1298      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1299    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1300       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1301    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1302    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1303    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1304       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1305    o tracer advection:
1306     - clean-up and simplify calc_common_factors.F
1307     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1308       advection subroutine (but still not used within DST advection S/R)
1309    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1310    
1311    checkpoint58j_post
1312    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1313      from file (collects calls previously in FORWARD_STEP)
1314    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1315    o adjoint store dir. adjusted accordingly
1316    o genmake2
1317      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1318    
1319    checkpoint58i_post
1320    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1321      on wind stress (SEAICEstressFactor defaults to 1.)
1322    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1323      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1324    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1325      on CS-grid: no longer loosing mass.
1326    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1327    o pkg/ggl90: fix sloppy output and fix a bug
1328    o pkg/seaice: added SEAICEuseEVPpickup parameter
1329      - Set to false in order to start EVP solver with
1330        non-EVP pickup files when using SEAICEuseEVP
1331      - fix sign error in diffusion in seaice_calc_rhs
1332    
1333    checkpoint58h_post
1334    * Modifications for bottom topography control
1335      o replace hFacC by _hFacC at various places
1336      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1337      o add non-self-adjoint cg2d_nsa
1338      o update autodiff support routines
1339      o re-initialise hfac after ctrl_depth_ini
1340      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1341    * Adding verification for 5x5 box (4-layer) bottom topography control
1342    
1343    checkpoint58g_post
1344    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1345       used for mean seasonal cycle, mean diurnal cycle); add an example
1346       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1347    o pkg/ggl90:
1348      - add parameter (minimum surface kinetic energy)
1349      - fix bug (avoiding division by zero)
1350    o couple pkg/thsice to pkg/seaice:
1351      - modify advection in seaice to accomodate new scalar fields to be advected
1352      - only muliDimAdection scheme work with seaice/thsice
1353      - mapping of thsice-variables to seaice-variables, back and forth
1354      - does not break the verification experiments, but does not give the
1355        desired results either
1356    o pkg/seaice
1357      - make (default) second order advection a bit less confusing?
1358    
1359    checkpoint58f_post
1360    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1361      to pkg/seaice):
1362      - new routines thsice_map_exf and thsice_get_exf provide the interface
1363      - add an additional formal parameter to thsice_solve4temp
1364    o pkg/exf:
1365      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1366      - correct Stefan-Boltzmann constant
1367      - new parameter for longwave surface emittance
1368      - separate some stuff from exf_bulkformulae into new routines  
1369        exf_radiation, exf_wind
1370      - add new parameters and constants: longwave emissivity for ocean, ice
1371        and snow, evaporation parameters over ice
1372      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1373        either wind from stress or stress from wind
1374    o pkg/thSIce:
1375    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1376    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1377       and THSICE_CALC_THICKN
1378    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1379    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1380      to make debugging easier.
1381    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1382    o pkg/bulk_force:
1383      - clean-up comments and parameters ;
1384      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1385    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1386      generate new output for test-experiment: aim.5l_cs.thSI
1387    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1388      testreport accordingly
1389    
1390    checkpoint58e_post
1391    o SEAICE_CGRID adjoint done
1392    o R_STAR adjoint implemented.
1393      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1394      * need to sort out init. of h0facc, etc.
1395    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1396      to be able to use it in pure forward.
1397    
1398    checkpoint58d_post
1399    o upgrade simple test-experiment to tutorial example:
1400     step.1: duplicate the experiment and (step.2) will remove the old copy.
1401      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1402      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1403      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1404      tutorial_global_oce_biogeo    <- copy of dic_example
1405      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1406      tutorial_plume_on_slope       <- copy of plume_on_slope
1407      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1408      tutorial_global_oce_optim     <- empty for now (David ?)
1409      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1410     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1411    o correct a sign problem in cost_scat.F
1412    o obcs and ptracers: fix boundary conditions for advections schemes
1413      with larger stencil
1414    o thsice adjoint: start
1415    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1416      completeness
1417    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1418      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1419    o ptracers adjoint:
1420      * avoid extensive recomputatations
1421      * fix missing re-init. of gptr (missed by TAF)
1422    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1423      me to turn off the excessive output to STDOUT that this package produces
1424    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1425      and add those terms in Vector-Invariant formulation.
1426    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1427      if the control period (xx_hfluxperiod etc) is 0
1428    o in profiles pkg, clean routines and fix details
1429    o in ecco pkg, reading ssh data:
1430      fix problem in case the model does not start at iter0=0
1431    o fix mnc-pickup/restart for ptracers
1432    o new package prifiles:
1433      code to compute profile-based cost by Gael Forget
1434      (modifs in ecco, ctrl, autodiff)
1435    o Benign bug fix in initialization (spotted by M. Mazloff) of
1436      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1437    
1438    checkpoint58c_post
1439    o adjoint: finish NLFS adjoint and provide reference output in
1440      verification/global_ocean.90x40x15/results_ad_nlfs
1441    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1442      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1443      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1444      with SEAICE_CGRID defined.
1445    o move calendarDumps from "data" to "data.cal" and clean-up the code
1446      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1447    o add useEXF & useCAL flags (for now, set in hard-coded way)
1448    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1449      (were missing in NH mode, and wrong in quasihydrostatic mode).
1450      waiting for Chris updated version of calc_gw to add those CALLs.
1451    o fix bug in quasihydrostatic S/R ;
1452      add a test for this option: global_ocean.90x40x15.qshyd
1453    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1454      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1455    o add on/off flag useOffLine for package OFFLINE
1456    o seaice:
1457      - modify advection so that it works also on the C-grid
1458      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1459        problem in multi-tile runs with C-grid
1460      - add flags for clipping ice velocities and/or masking solver forcing
1461      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1462        C-grid solver
1463      - added a few comments to seaice_diffusion.F
1464      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1465        are now exclusive)
1466      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1467        required re-ordering the code a little:
1468       + make DAIRN global variable (defined in SEAICE)
1469       + move computation of the viscosities eta and zeta into a new separate
1470         routine (because I need to recompute them in seaice_ocean_stress.F)
1471    
1472    checkpoint58b_post
1473    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1474      update output.txt of exp. aim.5l_cs.thSI
1475    o various mnc cleanups and improvements:
1476      + shrink lookup tables by factor of ~4
1477      + better error reporting when running out of lookup space
1478      + able to handle longer path/file names (up to 500 chars)
1479    o adjoint:
1480      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1481      - TBD: "hidden" mom_vecinv recomp. in dynamics
1482    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1483     (allow to differentiate between forcing components using new integer flags:
1484      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1485     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1486    o ecco
1487      - enable trend removal from SSH anomaly obs.
1488    o adjoint
1489      - a fix for PmEpR when #undef EXACT_CONSERV
1490      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1491      - try to fix "hidden" recomp. in forward_step for NLFS
1492        (NLFS seems broken sometimes after I checked it in)
1493    o seaice:
1494     - add c-grid version of the dynamic solver:
1495       + three new routines that are the c-grid substitute lsr, dynsolver
1496         and ostres
1497       + put a few fields that were local to dynsolver into global common
1498         blocks, so that I can move the computation of stresses etc into
1499         seaice_lsr (saves coding but may break the adjoint).
1500     - replace more hardwired parameters by runtime parameters
1501     - add ice masks that mask the rhs of the implicit solvers where there
1502       is no ice (commented out in seaice_dynsolver, because i am not sure
1503       if this works properly), eventually this should replace the clipping
1504       of ice velocities in seaice_dynsolver to +/-40cm/s.
1505    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1506      include it only where its needed
1507    o move balancing of fluxes before the call of external_forcing_surf
1508    o seaice:
1509      - correct units of turning angles (now they are really in degrees)
1510      - move computation of GWATX/Y out of main routine into dynsolver
1511      - initialize GWATX/Y in seaice_init
1512    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1513      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1514    o seaice: add runtime flags for turning angles (default to zero)
1515    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1516      and trend from exf forcing and ctrl control adjustments
1517    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1518      (since checkpoint57x_post)
1519    o change the default rotation period to 86164.s = the Earth rotation
1520    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1521      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1522    o seaice advection: add code for choosing between the default (2nd order
1523      central differences) and multiDim advection schemes provided by
1524      pkg/generic_advdiff
1525    o seaice:
1526      - removed all references to SEAICE_GRID.h fields from
1527        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1528        (cubed-sphere configuration will change a little)
1529      - grid computations in seaice_init are obsolete now.
1530      - cleaned up code a little so that is easier to read (hopefully).
1531      - added new (better?) discretizations of default advection and diffusion
1532        (turn on with SEAICEuseFluxForm)
1533      - replace 1 in 3d global fields by kSurface in growth.F
1534      
1535    checkpoint58a_post
1536    o seaice:
1537      - bug fix in advect.F
1538    o shelfice:
1539      - separate shelfice load anomaly from pload (breaks with time
1540        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1541        Its default is 0., but it may be computed more cleverly from (unknown)
1542        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1543        done offline. A good approximation of the pressure load anomaly is
1544        necessary to avoid large initial adjustment processes underneath
1545        deep-reaching shelfice.
1546      - small fix in ISOMIP shelfice_thermodynamics
1547      - add more sophisticated thermodynamics of Hellmer (1989), this is
1548        now the default
1549      - give a few constants more intuitive names
1550    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1551      if bulk formulae are used in long integration (especially EmPmR). Turn
1552      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1553      if balancePrintMean, the imbalance that is substracted is printed to
1554      STDOUT.
1555    o fix bug (typo) in obcs_apply_eta.F
1556    o add a new package shelfice which enables us to model the circulation
1557      underneath shelf-ice with draughts of hundreds of meters.
1558     - works
1559     - to do: + include improved thermodynamics
1560              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1561                instead of new field kTopC
1562              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1563                instead of new field R_shelfIce and new code in ini_depth.F
1564                and ini_mask_etc.F?
1565              + adjust vertical mixing schemes?
1566    o seaice pkg:
1567     - add a cpp-flag to include a simple formula for a salinity dependent
1568       freezing point of sea water at the surface
1569     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1570       meridional stresses are now different (and hopefully correct)
1571    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1572       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1573       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1574    o pkg/diagnostics: add options and parameters for regional-statistics
1575       diagnostics ; define regions by reading a region-mask from a file
1576       (might add other options later)
1577    o pkg/bulk_force:
1578     - add option and parameters to use AIM surface-flux formulae.
1579     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1580       others forcing fields (defined in PARM05, parameter file "data") are loaded
1581       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1582     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1583     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1584     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1585       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1586     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1587    
1588    checkpoint58
1589    o add "--embed-source" option to genmake2 which, when the supporting
1590      tools can be compiled (as determined by genmake2) will turn on the
1591      embed_files package which then embeds the entire MITgcm source code
1592      (*.[fFhc] + Makefile) used for the build within the executable
1593      - requested by CNH but off by default
1594      - adds a paltry <9MB to the mitgcmuv executable in most cases
1595      - only writes the output when useEMBEDSRC in eedata is true
1596    o clean up 3-dim. relaxation codes:
1597      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1598      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1599      * Thanks to Tom Haine for testing!
1600    
1601    checkpoint57z_post
1602    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1603      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1604    o fix the pickup behavior for obcs in combination with ptracers
1605    o fix a bug in ptracers_external_fields_load
1606    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1607      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1608    o transfered surface NH pressure to eta field (if exactConserv).
1609    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1610         and update lab_sea output.txt file.
1611    o completing 3-dim. relaxation code: additional term
1612         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1613      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1614      * At compile time, in "EXF_OPTIONS.h" set
1615          #define  ALLOW_CLIMTEMP_RELAXATION
1616          #define  ALLOW_CLIMSALT_RELAXATION
1617      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1618          tauThetaClimRelax3Dim = 15552000.0,
1619          tauSaltClimRelax3Dim  = 15552000.0,
1620      * 3 cases:
1621          1) Use a constant-in-time 3-dim. field
1622          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1623          3) Real-time relax. to time-evolving prescribed field
1624    o Adding Laplacian-type smoothness constraint on
1625      initial and boundary (forcing) controls (ic, bc)
1626      * enable at compile-time via
1627        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1628      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1629      * Absolute scale somewhat unclear so far
1630      * no area weighting was included since no other cost term does so far
1631    
1632    checkpoint57y_post
1633    First step for a NLFS adjoint
1634    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1635    o new init. routines for calc_r_star, calc_surf_dr
1636    o still need to deal with ini_masks_etc
1637    o testreport seemed happy
1638    checkpoint57y_pre
1639    
1640    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1641    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1642    o add new offset feature to offline pkg (plus minor cleanup)
1643    o cfc fixes for final year of integration
1644    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1645      be in GCHEM_OPTIONS).
1646    
1647    checkpoint57x_post
1648    o fix testreport Pb in multiple test experiment.
1649    o cleanup our namelist syntax in verification:
1650      - make it more F95 standards compliant (some work still needed)
1651      - allows the vast majority of our tests to work with gfortran
1652    o Non-Hydrostatic:
1653     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1654     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1655    o Allow to apply AB on T,S rather than on AB(gT,gS):
1656     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1657     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1658       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1659     - need a "clever" read_pickup to restart from the other AB formulation
1660    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1661    o remove some unused variables (reduces number of compiler warnings)
1662    o adjoint
1663      * Disable useVariableViscosity for adjoint for time being
1664        (there are a number of extensive recomputations)
1665      * Initialize certain variables needed for adjoint
1666    
1667    checkpoint57w_post
1668    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1669                 fix the singleCpuIO RS version of MDSWRITEFIELD
1670       and add a WARNING if using globalFiles=T with multi-processors.
1671    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1672      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1673    o tracer advection scheme:
1674      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1675       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1676       was not very convenient).
1677      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1678       (further tests needed for the implicit DST & Flux-Limiter schemes).
1679    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1680      and sRef for convenience, handy, when you want to initialize
1681      ptracers in a large domain with a constant non-zero value. Also,
1682      untangle ptracers_init.F a little.
1683    
1684    checkpoint57v_post
1685    o change dome exp. to use variable viscosity in side-drag terms.
1686    o remove all the files from the cfc_offline test since they are now
1687      incorporated into tutorial_cfc_offline which has been producing
1688      identical results for a few days of testing
1689    o add new parameter: sideDragFactor to enable half-slip-side BC
1690      and change side-drag S/R to use viscosity from mom_calc_visc
1691      (can switch back by setting sideDragFactor=0.); affects results at
1692      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1693       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1694    o vorticity & strain are now computed without masking, to account for
1695      no-slip-side BC in variable viscosity calculation ; mask is applied
1696      anyway later on, before computing advection/coriolis terms.
1697    o modify exp4 to test new obcs support for reading from external files
1698      and for passive tracers
1699    o fix behavior of ptracers_monitor when monitor output is written to a
1700      netcdf-file; still not independent of monitor.F (writes in the same
1701      file).
1702    o change default value of tRef (put a uniform, meaningful value for ocean
1703      & atmos) and initialize sRef (was missing, as Martin mentioned).
1704    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1705      to be proportional to enstrophy dissipation length.  Thus,
1706       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1707      This is now consistent with Smagorinsky and with the manual.
1708    
1709    checkpoint57u_post
1710    o OBCS and PTRACERS: add open boundary support for passive tracers
1711      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1712        OB-values from file; this is not different from the way theta and salinity
1713        are treated
1714      - however, Orlanski-radiation conditions are not supported, and the model
1715        will stop if you use pTracers and Orlanski at the same time.
1716      - beefed up the rountine obcs_external_fields_load: now only those open
1717        boundary values are overwritten with values from files for which there
1718        are really files, otherwise the OB-fields remain untouched. This makes
1719        it possible to use different OBs at different ends of the domain (as
1720        with EXF)
1721    o reduce number of exch calls in shap_filt (s2).
1722    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1723      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1724    
1725    checkpoint57t_post
1726    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1727    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1728      same truncation, independent of the face number: affects affects several
1729      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1730    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1731      note that biharmonic viscosity + no-slip was not tested in any experiment.
1732    o fix bug in non-linear free-surf side-drag ; generate new output for
1733      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1734    o make mnc honor the writeBinaryPrec flag for most kinds of output
1735    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1736    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1737      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1738    o add brackets in multi-terms sum to get same truncation, independent of
1739      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1740      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1741    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1742      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1743      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1744      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1745      Suggested values of viscosity parameters found in mom_calc_visc.
1746      Many new viscosity diagnostics available.
1747    
1748    checkpoint57s_post
1749    o Add clearing-house for viscosity calculations, mom_calc_visc and
1750      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1751      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1752      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1753      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1754      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1755      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1756      ViscAhStrain and viscAhTension are now retired.
1757    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1758    o In response to JMC's bug report, genmake2 now ignores any soft-links
1759      that it finds in the *current* directory when searching for files.
1760      Soft-links found in any other source directories will still work as
1761      they did before.
1762    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1763      a C routine to unlimit the stack size
1764    o mnc-ify pkg/aim snapshot vars
1765    o mnc-ify pkg/land as requested by Daniel
1766    o various changes to mnc including:
1767      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1768      - output can now be grouped so that all files within a group
1769          change the ITER portion of their names in lock-step together
1770      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1771          and works with both EXCH1 and EXCH2 (but needs more testing)
1772      - writing works for all verification test cases w/ g77 on Linux
1773    
1774    checkpoint57r_post
1775    o make MNC variable initialization happen earlier
1776    o add diagnostics for (almost) each term of the momentum Eq.
1777    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1778    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1779    o remove MINIMAL_TAVE_OUTPUT option ;
1780      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1781    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1782      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1783    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1784    o add time-dependent SST, SSS control
1785    o cost terms in ecco/ modularized (new cost_generic.F)
1786    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1787    o new infrastructure for seaice model vs. obs misfits in seaice/
1788      * driver from the_main_loop.F is seaice_cost_driver.F
1789      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1790      * gradient check in Exp. 6a of natl_box_adjoint/
1791    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1792      (see README file)
1793    
1794    checkpoint57q_post
1795    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1796    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1797      - bug was reported by Jean-Michel and Ian Fenty
1798    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1799      update exp. cpl_aim+ocn output.
1800    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1801      Needed for high-res. runs with large global files
1802      to be able to limit tapelev size
1803    o Changed some tests for adjoint:
1804      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1805      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1806      * global_ocean.90x40x15/ back to default 3-level checkpointing
1807    o Modifications to enable scripted COMMON to MODULE conversion
1808      * verification/OpenAD/code/ has necessary scripts and description;
1809      * converts, compiles and runs successfully;
1810    
1811    checkpoint57p_post
1812    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1813    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1814      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1815    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1816    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1817      (was already the case for dissipation with mom_vecinv,
1818       and also the case for grad.PhiHyd when staggered-timeStep)
1819      This will allow to put dissipation out-off the AB time-stepping.
1820     Unfortunately, affects truncation error. Update output of exp. that "fails"
1821      (cg2d matching number) and leave the others for later: front_relax(10),
1822      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1823      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1824    
1825    checkpoint57o_post
1826    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1827      (2) its ready to be documented during the 20050801 DocFest
1828    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1829      for ideal_2D_oce and lab_sea on linux_ia32_g77
1830    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1831      in global1x1_tot/code_seaice_adj to access indices 32, 33
1832      (worth another tag)
1833    
1834    checkpoint57n_post
1835    o adding precip control xx_precip 32
1836    o adding swflux control xx_swflux 33
1837    o Replacing 10 forcing penalty cost routines by 1 generic.
1838    o Implementing partitioning in time-mean and variable adjustment
1839      for atmos. state.
1840    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1841  o in natl_box_adjoint:  o in natl_box_adjoint:
1842    * updated: results_bulk/    * updated exp 1 to 10
1843    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1844    o updated global1x1/*_seaice_adj/
1845      to incorporate latest changes
1846    o enable useSingleCpuIO for mdsio vector routines
1847      (applies in particular to tapelev I/O)
1848    o removed inefficient K-loop in all active_file*control*.F
1849    
1850  checkpoint57m_post  checkpoint57m_post
1851  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 2428  o add two new packages
2428    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2429    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2430      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2431      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2432  o add offline package  o add offline package
2433  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2434    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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