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revision 1.764 by jmc, Thu Jan 11 00:29:41 2007 UTC revision 1.1081 by mlosch, Fri Mar 20 16:04:38 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      Major overhaul of the LSOR solver: change discretization from original
9      finite differences to finite volume. The old routine is still in the
10      file seaice_lsr.F and can be turned on with the CPP-flag
11      SEAICE_OLD_AND_BAD_DISCRETIZATION
12      Along with this change, the discretization of the strain rates is changed.
13      The same flag turns on the old discretization in seaice_calc_strainrates.F
14      All verification experiments with seaice are affected (except for
15      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
16      results by setting the above flag.
17      Further changes involve changes in defaults:
18      - ALLOW_FLOODING is defined and turned on by default
19      - SEAICE_advSnow = .true. is now the default
20      - SEAICE_advSalt = .true. is now the default
21      - SEAICE_advAge  = .true. is now the default
22      - SEAICE_clipVelocities  = .false. is now the default
23                                         (as per J. Zhang's recommendation)
24      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
25        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
26      - seaice_growth: replace computation of UG by a simple copy from wspeed
27    
28    checkpoint61k
29    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
30      seaice_lsr: fixed a few metric terms,
31                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
32                  add more debugging diagnostics
33      seaice_evp: removed superfluous many metric terms of FV discretization
34                  of stress divergence
35                  affects lab_sea, lab_sea.hb87
36      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
37                  of stress divergence for non-evp solver
38                  (this part is not tested anywhere)
39      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
40                  they were effectively only half slip
41                  affects lab_sea.hb87
42      updated all relevant verification experiments
43    
44    checkpoint61j
45    o pkg/seaice: turn a few hard wired parameters into run time parameters
46    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
47      time in seconds as promised by the usints in seaice_monitor and exf_monitor
48    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
49      that are not cubed-sphere grids
50    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
51    o pkg/ctrl:
52      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
53    o non-hydrostatic (calc_gw.F):
54      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
55      update output of exp. global_ocean.cs32x15.viscA4
56    o remove backward compatibility for thetaMin,phiMin
57      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
58    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
59      interpolated wind field not only for curvilineargrid=.true., but also
60      for a rotated grid (rotateGrid=.true.)
61    o pkg/exf: add capability to bypass interpolation for runoff
62      by setting yet another CPP-flag
63    o eesupp/src, B-grid exchange:
64      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
65    o autodiff
66      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
67      allows to switch to single-prec common blocks;
68      corresponding switch occurs in tamc.h, integer isbyte
69      TAF store directivs "byte" and "kind" seem equivalent;
70      Most tamc.h have been updated correspondingly.
71    
72    checkpoint61i
73    o autodiff:
74      fix autodiff_sore/_restore indices for obcs
75      (spotted by I. Hoteit, M. Mazloff)
76    o pkg/autodiff, pkg/ctrl:
77      Add flag to reduce all tapelev I/O to single-prec.
78      In data.ctrl set
79        doSinglePrecTapelev = .TRUE.
80    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
81      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
82    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
83      real fresh water flux (not yet)
84    o pkg/mdsio & rw:
85     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
86     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
87    o pkg/flt:
88     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
89       init_fixed & ini_varia.
90     - clean-up & simplify linear interpolation S/R:
91       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
92     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
93     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
94     - add vert. coordinate & horiz. indices to output files.
95     - change vertical position in initial condition, from index to depth [m].
96     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
97       (easier to get to a curvilinear grid) ; delX,delY no longer used.
98    o pkg/ggl90: a few modifications:
99     - fix bottom boundary condition, and interpolation of KappaE
100       near top and bottom
101     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
102     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
103     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
104    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
105      (maintain temporary backward compatibility, until next checkpoint)
106    
107    checkpoint61h
108    o pkg/diagnostics with "periodic averaging diagnostics":
109      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
110    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
111    o pkg/obcs: fix loop ranges for balancing code
112    o pkg/flt:
113     - improve criteria for finding which tile owns a float.
114     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
115    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
116      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
117      with ocean biogeo)
118    o pkg/flt:
119     - do some cleaning and fix the restart ;
120     - add output.txt in flt_example/results to get this pkg tested.
121    o genmake2: add an EXTENDED_SRC option and flag.
122       for now, cannot be turned on on command line (only through genmake_local)
123    o pkg/mdsio: read/write vector:
124     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
125     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
126       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
127     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
128      (drop to 4 digits matching for grad). But this test does not look very
129      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
130    
131    checkpoint61g
132    o pkg/flt:
133      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
134       + make OPTIONS file more standard.
135      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
136      - fix _BYTESWAPIO CPP-Flag
137      - standard reading of file-parameter "data.flt"
138      - fix argument list of S/R FLT_RESTART
139      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
140    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
141    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
142      a still unfixed compiler/optimization bug
143    
144    checkpoint61f
145    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
146      update results of global_ocean.cs32x15.icedyn test.
147    o move getcon.F from model/src to pkg/fizhi.
148    o pkg/exf: add parameter for extrapolation of temp up to the surface
149       and option to prevent negative evap (in bulk_largeyeager04 only).
150    o Prather Advection scheme: fix tracer conservation for divergent flow
151      (e.g., when using NonLin Free-Surface).
152    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
153    o gmredi (Visbeck-variable-K):
154     - add more parameters to Visbeck-variable-K.
155     - use a 5 points average for dSigmaR in Visbeck-K calculation
156       (more "homogenous": same stencil and same weights as in dSigmaH)
157     - update output of ideal_2D_oce experiment.
158    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
159      (#undef REAL4_IS_SLOW)
160     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
161       coordinate variable
162     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
163       (surface forcing fields), removes some of the functionality
164     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
165     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
166       probably not all: copy _RS surface flux fields to RL field before
167       calling DIAGNOSTICS_FILL
168     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
169       real*4 (CALL EXCH_*_RS) versions.
170     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
171       (generate new output).
172    
173    checkpoint61e
174    o gmredi (Visbeck-variable-K):
175      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
176      - change computation of Visbeck-K where Slope > Smax :        
177        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
178        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
179    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
180      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
181    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
182    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
183      does not become too large (to avoid precision problems in implicit-diffusion
184      solver); update ideal_2D_oce output.
185    o pkg ggl90:
186      - in ggl90_cal.F: compute only one set of visc/diff, used to
187        step forward TKE/T/S/momentum
188      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
189        have Prandlt =1)
190    o gmredi (fm07):
191      - add lower limit on Transition layer thickness + lower limit on 1/lambda
192      - allow to set few more params from data.gmredi
193    o pkg ggl90:
194          - add missing sqrt(2) factor in computation of mixing length
195            scale in ggl90_calc.F
196            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
197    
198    checkpoint61d
199    o adjoint modifs
200      - adapt to new field rhoInSitu
201      - allow to revert from StoreDynVars2D, StoreDynVars3D
202        to individual fields
203        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
204    o store 3-D (in-situ) density in commom block (DYNVARS.h)
205     - save 1 rho computation.
206     - no longer modify T & S inland when using down_slope pkg.
207    o gad_som : allow to switch to SOM advection for T & S without corresponding
208      pickup files (using new S/R: MDS_CHECK4FILE).
209    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
210      (for useSingleCpuIO to work in multi-threaded)
211    o pkg/shelfice:
212     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
213       with SHELFICEtopoFile in data.shelfice
214     - move code for reading ice shelf topography and modifying hFacC into separate
215       subroutines of the shelfice package
216     - separate initialisation of "fixed" and "variable" variables
217     - kTopC is not (yet) replaced by kSurfC, although this is possible
218    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
219    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
220      and rename:
221      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
222      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
223    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
224    
225    checkpoint61c
226    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
227      to add mass source/sink of fluid in the interior (3-D generalisation
228      of oceanic real-fresh water flux).
229    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
230    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
231    o new pkg: down_slope
232      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
233      - presently, modify T & S inland (dwnslp_calc_rho.F).
234        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
235      - implementation for ocean in P-coords not tested.
236      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
237    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
238      (to facilitate conversion of oceanic pkg to p-coordinate).
239    o change FIND_RHO to FIND_RHO_2D :
240      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
241    o new pkg: cheapaml
242    
243    checkpoint61b
244    o exch2:
245      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
246      - no longer depend on the order sequence (N,S,E,W).
247      - 3rd exchange no longer needed (tested with 24 tiles).
248      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
249      - exch_UV_A-grid readily available (but not yet tested).
250      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
251      (both are no longer needed) in exch_uv: no effect in forward run; but
252       get truncation error differences with adjoint exch.
253    o exch2:
254     - change index-bounds storage (moved from target to local tile,
255       more intuitive this way) ; rename/remove some variables.
256     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
257    
258    checkpoint61a
259    o exch2/matlab-topology-generator:
260      fix bug in index bounds for N-S internal exchange (hard to tell if this
261      had any effect on the solution).
262    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
263      is exceeded
264    o testreport: modify syntax of awk, so that it works also with
265      awk, and not only with nawk and gawk
266    
267    checkpoint61
268    o autodiff
269      Change default for TAF usage by removing argument '-nonew_arg'
270      This changes TAF subroutine argument list (ordering of active var.)
271      Omission of this flag leads to incompatibility w.r.t. TAMC
272      To restore TAMC-compatibility, need following modifs:
273      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
274      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
275      Tested TAF version is 1.9.22
276      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
277    
278    checkpoint60
279    --->>> This is the last checkpoint for which generating the adjoint
280    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
281    --->>> by default.
282    --->>> Future checkpoints will ommit this flag by default.
283    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
284    o pkg/grdchk: Add gradient check to etan0 perturbations.
285    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
286    o pkg/autodiff: more flexibility in zeroadj.
287      model/src: modifying do_oceanic_phys.F accordingly.
288    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
289    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
290      special setup of gmredi for which the adjoint is stable
291      enough for parameter optimization.
292    o bridging the gap between eddy stress and GM.
293      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
294          along with a change in CPP option (now ALLOW_EDDYPSI).
295      -> when using GM w/ GM_AdvForm:
296          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
297          is applied either in the tracer Eq. or in momentum Eq.
298          depending on data.gmredi (intro. GM_InMomAsStress).
299      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
300      The key modifications are in model/src/taueddy_external_forcing.F
301      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
302    
303    checkpoint59r
304    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
305      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
306      fix option to read coriolis(@ cell-corner) from files with CS-grid.
307    o pkg/mnc: add some attributes to standard 1D-coordinate variables
308    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
309      mass points, when using mnc for output
310      - add runtime parameter (missing_value, missing_value_int) to override
311        default (which is the value of getcon('UNDEF'))
312    o pkg/mnc: prepare mnc for the actual use of missing values with the
313      diagnostics package: small fix in mnc_cw_readwrite.template and more
314      initialisation of never used fields
315      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
316      versions
317    o pkg/thsice/thsice_ini_vars.F added default initial values so that
318      thermodynamics sea ice solver does not blow up when some initial fields
319      are missing.
320    o move from external_forcing_surf.F to ini_forcing.F
321      the p-coord. hack consisting in using pLoad to set phi0surf ;
322      update output of tutorial_global_oce_in_p (affected @ truncation level).
323    o Freshen up a bit hs94.1x64x5, notably:
324      remove rotationPeriod and tRef=5*0. (adjoint only), and add
325      exactConserv=.TRUE.
326    o pkg/generic_advdiff:
327      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
328      applies to files where Temperature & Salinity 2nd Order moments are used.
329    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
330      this uses a dynamically allocated internal state data structure
331      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
332      and requires a fortran 90 compiler
333    
334    checkpoint59q
335    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
336       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
337    o Refresh tutorial_global_oce_biogeo, notably:
338      - change bathymetry (put back seamounts in ACC, use hFacs)
339      - change EOS (POLY3 --> JMD95Z)
340      - use Bryan-Lewis vertical diffusivity
341      - use multidimensional advection
342      - remove old virtual virtual in dic pkg, now done through ptracer pkg
343      - change a couple of parameters in dic pkg
344    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
345    o pkg/obcs: change default to OBCSfixTopo = .true.,
346      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
347      - replace "debugMode" with "debugLevel .GE. debLevB"
348    o implementation of TAF directives for gchem,cfc,dic
349    o remove "exp5" (replaced by tutorial_deep_convection).
350    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
351      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
352      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
353      --> changes results in exp4, seaice_obcs
354    o tutorial_deep_convection :
355      update the set-up and increase resolution and domain size ; start
356      from pseudo initial conditions = output at t=120mn in order to see
357      something happening when running testreport.
358    o pkg/seaice: add os7mp as an advection scheme
359                  add check for advection schemes
360                  add a flag for restoring T and S underneath sea ice
361    o pkg/my82: add netcdf-support and diagnostics
362    o thsice pkg:
363      - Now hsMax limits snow height by turning it into ice following
364        flooding scheme (and now conserving energy)
365      - Slight rewriting of the formula in thsice_calc_thick.F
366      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
367      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
368    
369    checkpoint59p
370    o gchem / dic / cfc :
371      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
372      - add new parameter files: "data.dic" & "data.cfc" ;
373      - various re-arrangement in initialisation & header file ;
374      - fix tutorial_global_oce_biogeo for multi-threaded test.
375    o pkg/dic: test for "pickup_dic" file when restarting ;
376      if no pickup-file, can restart with a re-initialised pH (same as it did
377      before) providing pickupStrictlyMatch is set to False.
378    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
379      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
380    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
381      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
382    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
383     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
384       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
385    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
386       scheme to use for vorticty-term ;
387     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
388       (with default selectVortScheme, return to original discretisation)
389     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
390    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
391    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
392      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
393      also fix diagnostics VISCAHW & VISCA4W.
394    
395    checkpoint59o
396    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
397    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
398      move a few statemens out the main loop into separate loops
399    o pkg/shelfice:
400      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
401        (kg/m^2/s), does not break tests, because in verification/isomip,
402        rhoConstFresh=rhoConst (by accident)
403      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
404      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
405        new file model/src/seawater.F, so that they are available for all pkgs.
406      - convert potential temperature into in-situ temperature. This changes the
407        isomip tests => update tests
408    o add a flag writePickupAtEnd (default=true) to be able to suppress
409      writing a pickup at the last timestep
410    o tools/mpack-1.6 :
411      - disable automake (not working) and autoconf (not needed).
412      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
413        also cleaner with much less compilation warnings.
414    o pkg/profiles:
415      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
416      (for "less than 32 characters name" compiler requirement)
417    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
418      conditions that have a different sampling frequency than S/T/U/V obcs
419    o pkg/diagnostics (stats-diags):
420      - fix global Min/Max in case 1 processor get only empty tiles
421    o genmake2: replace (4 times)
422         make genmake_tc_1.o >> genmake_warnings 2>&1
423      with
424         COMM="$CC $CFLAGS -c genmake_tc_1.c"
425         echo $COMM >> genmake_warnings
426         $COMM >> genmake_warnings 2>&1
427      to make genmake2 always see the value of CC as specified in the optfile.
428    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
429      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
430      - modify verification advect_cs test to test SOM-advection on CS-grid.
431    o pkg/ctrl:
432      - Rewrite of ctrl_map_ini_ecco.F,
433        introducing a generic routine (ctrl_map_ini_gen.F).
434      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
435    
436    checkpoint59n
437    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
438      number in dedicate array "hdiag":
439      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
440        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
441      - many small changes (integer format) for large number of diagnostics
442      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
443        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
444    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
445      usingSphericalGrid, this allows to define the rotated grid coordinates
446      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
447      geographical coordinates according to the inverse of the rotation defined
448      by the Euler angles, so that Coriolis parameter and online-interpolation by
449      exf works with the geographical coordinates on XC/YC/XG/YG.
450      Naturally, this feature does not work with all packages, so some
451      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
452      profiles), because there the coordinates are assumed to be regular
453      spherical grid coordinates.
454    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
455      - introduce isopycnal diffusion coefficient control.
456    o tools/adjoint_options:
457      - additional control vector components.
458    o pkg/mnc: have mnc create marginally meaning full coordinate variables
459      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
460    o pkg/mypackage:
461      - add example of read/write pickup for state-var ;
462      - add entry points to the main code for state-vars diags & write-pickup.
463    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
464      transitions for useExfYearlyFields
465      - add new subroutine that determines the file to read from for
466        use*YearlyFields = .TRUE. and .FALSE.
467      - add a verification experiment to global_with_exf that tests
468        useExfYearlyFields with USE_EXF_INTERPOLATION defined
469    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
470      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
471      subroutines (which could be generated from a template, because they are
472      almost identical), for now they are included in obcs_prescribe_read.F for
473      simplicity
474    o pkg/exf:
475      - add a little more diagnostic to exf_interp_read (in analogy to
476        mds_read_field, can be turned off with debugLevel < debugLevA=1)
477      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
478        ugly but fast by unrolling short inner loops, inserting a unroll=8
479        directive in routine lagran, and splitting a loop and making do while the
480        outermost loop (the latter requires the intoduction of index arrays)
481    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
482    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
483      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
484    o verification/seaice_obcs: updated for restart test and latest options
485    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
486      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
487      for now this is only available for the C-grid code and also within
488      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
489    
490    checkpoint59m
491    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
492      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
493    o gad_som : fix flux output (& diagnostics) to have same units as other  
494      advection scheme fluxes (was previously multiplied by deltaT).  
495    o added verification/seaice_obcs both to test seaice open boundaries
496      and to provide an example matlab scrpt for generating them
497    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
498    o pkg/salt_plume: clean up salt_plume_frac.F to
499      remove redundancy in PlumeMethod 1 and 4
500    o pkg/kpp: added saltplume diagnostics
501    o pkg/obcs and pkg/seaice:
502      - do not set uice and vice to zero when OB*icefile are unspecified
503      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
504      - moved seaice tracer obcs after call to seaice_growth
505    o pkg/salt_plume: added various options for salt plume depth
506      criterion and for vertical distribution of the salt
507    
508    checkpoint59l
509    o pkg/ptracers: new version of ptracers pickup:
510      read meta file and write only fields which are needed to restart.
511      ( same logic as main pickup file ; also using pickupStrictlyMatch )
512    o pkg/seaice:
513      - add timescale for melting due to warm mixed layer as a means of
514        setting SEAICE_availHeatFrac more conveniently
515      - add a CPP-flag/runtime parameter check for flooding algorithm
516      - reformulated availHeat in seaice_growth.F to be independent of AREA
517    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
518      unit changes
519    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
520    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
521      SX vector computer.
522    o pkg/seaice:
523      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
524        seaice forcing fields can now be read only through pkg/exf
525      - removed some unused halos
526    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
527    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
528      or U/VICE from U/VWIND before computing U/VSTRESS
529    
530    checkpoint59k
531    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
532      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
533    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
534      all experiments pass when compile with un-initialised var. checking option.
535    o added pkg/salt_plume
536    o script to test restart (for now, in MITgcm_contrib/jmc_script)
537    o pkg/seaice: new read/write pickup version.
538      read meta file and write only fields which are needed to restart.
539      ( same logic as main pickup file ; also using pickupStrictlyMatch )
540    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
541    o lab_sea.hb87: modify the domain & update output.hb87.txt :
542      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
543      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
544      process. Fixed here by closing the domain at the Northern boundary.
545    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
546    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
547      a set of consecutive levels in/from a 3-D array.
548    o pkg/ptracers:
549      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
550      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
551    
552    checkpoint59j
553    o in pkgs: dic, obcs, offline, rbcs:
554      standard way to compute coeff. for time interpolation between 2 time reccords
555      which retains full precision (& make results less dependent on compiler).
556      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
557    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
558      packages instead of reading ice cover and wind speed separately
559    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
560     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
561      to allow to compile customized code before the update)
562    o cleaning-up:
563      - fix CPP instruction syntax in pkg/obcs
564      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
565        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
566      - fix some threads issue in IO parts.
567    o pkg/dic:
568      - add tons of "_d 0" (--> much better testreports !)
569       and then update outputs of tutorial_global_oce_biogeo
570    o pkg/mom_fluxform:
571      add a special version of momentum advection intended to conserve momentum
572      next to a bathymetry step or a coastline edge. (default = off = #undef)
573    o new read/write pickup version:
574      - for now, only implemented for main (mdsio) pickup file.
575      - write out only what is needed to restart; merge pickup_nh , pickup_ph
576        and main pickup together.
577      - read meta file; read only what is needed to restart; stop if a field
578        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
579        if it make sense (even if the restart is not perfect).
580      - if no meta file, assume that pickup to read corresponds exactly to
581        a pickup that would currently be written.
582      - read pickup written in the old format (until checkpoint59i) if it
583        recognizes an old meta file (no field-list).
584      - add a meta file in exp. which starts from a pickup: 2 cases:
585        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
586         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
587        b) a meta file describing the content of the associated pickup file
588         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
589    o pkg/mdsio & pkg/rw:
590      - new routine to read a meta file ; new set of routine to read
591        Multiple-fields file (with meta file).
592    o added open boundary conditions capability for seaice
593        HSNOW, HSALT, UICE, and VICE
594    
595    checkpoint59i
596    o adjoint:
597      * fix multiDimAdvection adjoint
598        (partial recomputation problem by TAF for fVerT(:,:,kDown)
599        and comlev1 size definition (maxpass vs. max. number of tracers)
600      * verification/global_ocean.90x45x15 adjoint now tests
601        NLFS and multiDimAdvection using DST3 (=30)
602      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
603    o pkg/kpp: add "_d 0" to real constant (if missing);
604      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
605      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
606    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
607      for internal parameters related to restart process (formerly from PARAMS.h)
608      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
609    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
610      as argument. (only atm2d & obcs write_pickup have not yet been updated)
611    o pkg/monitor:
612      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
613      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
614      - account for deep Atmosphere factor and density factor (anelastic)
615    o added open boundary conditions capability for seaice HEFF and AREA
616    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
617      thermodynamics
618      - requires a little reorganization, which affects the testreport results
619        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
620        so that now the conservative form is tested
621      - add a few comments
622    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
623    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
624    o add new diagnostics to seaice: advective, diffusive fluxes (only for
625      multidim-advection, for scheme 2 they are not filled) and transports,
626      thermodynamic growth rates
627    o change units of EmPmR (inside the code, + within coupling interface)
628      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
629      Affects results @ truncation level (cg2d match) and update output of
630       experiments: lab_sea(6), global_ocean.90x40x15(10),
631      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
632      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
633      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
634      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
635    
636    checkpoint59h
637    o pkg/exf:
638      - improve vectorization by moving if-statement out of loops in
639        exf_mapfields, exf_radiation
640      - exf_bulkformulae.F: introduce 2D fields and vectorize code
641    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
642    o testreport:
643      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
644        monitor & update offline_exf_seaice exp. output.
645      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
646    o pkg/seaice:
647      - bug fix in the evp solver: boundary conditions were affected be
648        masking of zMax/zMin (changes results)
649      - minor bug fix in boundary conditions in seaice_calc_strainrates
650        (changes results for no_slip)
651      - seaice_lsr.F: make interpolation of eta dependent on boundaries
652      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
653      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
654        stress formulation and no-slip boundary conditions
655    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
656      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
657    o pkg/seaice: a first HSALT time stepping equation has been checked in
658    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
659      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
660      without requiring DO-IF statements
661    o pkg/thsice:
662      use continuous power-law function for partition of energy between lateral
663      melting/freezing and thinning/thickening ; old code using step function
664      still available with #undef THSICE_FRACEN_POWERLAW
665      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
666    o testreport: change AD testing : check against results/output_adm.txt
667      using same scripts as for forward test.
668    
669    checkpoint59g
670    o adjoint testing: in preparation for changing testreport:
671      - output format: cost and grad written on separated lines
672      - ad output results in directory "results" (instead of "results_ad")
673    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
674    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
675    o pkg/ecco: allow user defined cost function contributions
676    o testreport:
677      Allow to choose (per experiment) the list of tested output variables
678       and the main variable (used to issue a pass/FAIL ) ;
679      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
680      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
681      Also modify printing of summary:
682       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
683       b) echo the list of tested variables in the individual summary.txt of
684          each experiment.
685    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
686      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
687      (but still depend on the tile decompostion of the domain).
688    o pkg/seaice: change a discretization detail to make the B-grid code
689      "more symmetric". This change is likely to remove all "ridges/leads" that
690      where quasi-aligned with the grid in B-grid solutions. It may also be
691      the solution to the stress coupling issues with the B-grid.
692    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
693      remove .cvsignore from input dir. (since testreport no longer run here).
694    o pkg/thsice:
695     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
696     - fix reshaping of sea-ice just after advection:
697       melt all the ice only if ice-volume is too small.
698     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
699       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
700     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
701    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
702      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
703    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
704      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
705      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
706      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
707      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
708      -> update output.txt
709    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
710     this affects truncation error: -> update output.txt of exp:
711      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
712      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
713    
714    checkpoint59f
715    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
716    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
717      a bounded range (in forward mode)
718    o pkg/ecco, ctrl, autodiff and mom_common:
719     internal parameter controls, completements of implementations
720    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
721    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
722      (not seem any difference in testing results).
723    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
724       at face corners.
725    o pkg/generic_advdiff:
726     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
727      loop range indices for computing vertical advection tendency
728      and do the calculation in the interior only (no overlap) ;
729      for now, only implemented for SOM advection (to save CPU time).
730     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
731    o exch2 adjoint
732      First set of changes:
733      - add exch2 hand-written adjoint templates
734      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
735        This will require cleanup in pkg/autodiff/*.F
736        (changed routines currently kept separate in verif. code/)
737      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
738        that used to hide exch2 or cubed-sphere specific code
739        (commented via 'cph-exch2')
740    o pkg/seaice
741      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
742    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
743       output of global_ocean.cs32x15.thsice .
744    
745    checkpoint59e
746    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
747      for B-grid vector (not yet tested) and C-grid vector (<- only used
748      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
749    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
750      (#ifdef ALLOW_SALT_PLUME)
751    o gather_2d/scatter_2d: removed halo regions
752    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
753      scheme and the corresponding test case (under front_relax dir). For now,
754      only available with Skew-flux form and not yet tested in realistic set-up.
755      adjoint: store directives updated, but gradient checks deteriorated,
756      so maybe GM/Redi adjoint is now broken.
757    o seaice adjoint
758      * add AREA, HEFF, HSNOW as control variable
759        (should not change lab_sea results)
760      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
761    o pkg/seaice:
762      * added computation of saltFlux in seaice_growth;
763        For time being, sea ice salinity is assumed constant
764        contribution of snow flooding to freshening of sea ice is neglected.
765        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
766        defaults to 0.0 in order to maintain backward compatibility.
767        Typical values for SEAICE_salinity are 4 to 10 g/kg.
768      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
769      * added SEAICE_availHeatFrac, which specifies fraction of surface level
770        heat content used to melt or grow ice
771      * commented out cap of HICE: it helps keep ice thinner
772      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
773      * applied OBCS T/S mask to HEFFM sea ice mask
774    
775    checkpoint59d
776    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
777     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
778     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
779    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
780     and change default value of parameter "GM_Small_Number";
781     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
782       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
783       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
784    o pkg/ecco: cost function when applying pkg/smooth to controls
785    o pkg/ctrl: add forcingPrecond run time parameter
786    o pkg/seaice:
787     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
788     - fix bug in metric terms of u-equation in LSR solver (implicit part),
789       changes verification/lab_sea
790     - rearrange implicit part of u-equation in LSR solver to make it easier to
791       read, understand, and debug. This causes changes at the truncation level.
792     - fix (serious) bug in the boundary conditions (sign error in the implicit
793       part) of the LSR solver. Changes all LSR results.
794     - fixed problem with HSNOW initialization to avoid thick snow when AREA
795       is initilized with small values - does not change lab_sea results.
796     - added HsnowFile initialization capability
797    o pkg/smooth: addition to model/src and pkg/ctrl so allow
798     initialization of pkg/smooth and application to control vector
799    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
800    o dependencies: pkg/profiles requires pkg/cal
801    o pkg/profiles:
802     - added option ALLOW_PROFILES_GENERICGRID
803         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
804         that interpolation information (grid points and coefficients) is provided
805         within the netcdf input files.
806         -> sample matlab scripts can be found in MITgcm_contrib/gael
807         that allow you to prepare netcdf input files.
808     - also modified: cleaner include statements, cleaner error print statements,
809       cleaner stops when error, and more tests of the netcdf input files consistency.
810    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
811    o pkg/seaice:
812     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
813       requires a new routine: seaice_diagnostics_fill.F
814     - make sure that seaice does not move if not forced (pressure replacement
815       method, Hibler and Ip, 1995), changes results
816     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
817     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
818       It is turned off by default (=-1.), because it changes the results.
819     - make it possible to read AREA from a file, too.
820    
821    checkpoint59c
822    o add S/R and diagnostics for oceanic mixed-layer depth
823    o move GMRedi call after all vertical mixing schemes (including KPP)
824    o pkg/thsice:
825     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
826      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
827    o pkg/obcs:
828     - bug fix for balance code
829    o pkg/seaice:
830      - allow values of SEAICE_elasticParm > 1
831      - add new parameter SEAICE_evpTauRelax as an alternative
832        to SEAICE_elasticParm
833      - make lsr boundary conditions free slip (by default), changes result
834      - add code for no slip boundary conditions for lsr
835      - set minimum of zeta to zero (and not 4e8) (changes results)
836      - add a cap on AREA after advecting AREA if seaice_growth is not called
837    o change calculation of Visbeck K:
838      - no longer depend on tapering scheme; instead, compute slope (limited
839        by GM_maxSlope). this is equivalent to what was comuted before with
840        clipping or linear tappering.
841      - fix vertical averaging (wrong by 1/2 level)
842      - leave the old version (but will not be maintained) within
843        #ifdef OLD_VISBECK_CALC / #endif
844      - update output of exp. ideal_2D_oce
845    o change error catch in calc_r_star to improve vectorization
846    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
847      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
848    o adjoint:
849      Re-organized adjoint checkpointing according to Matt Mazloff
850      (but with modifs/completions/cleanups)
851      Storing is now bundled into large arrays to optimized I/O
852      (and second step in cleanup of the_main_loop)
853    
854    checkpoint59b
855    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
856      - export/import (between ocean & coupler) fields needed for ocean DIC.
857    o pkg/seaice:
858      - get rid of three more exchanges seaice_calc_viscosities (required
859        different loop boundaries in seaice_lsr and seaice_ocean_stress)
860      - bug fix in seaice_ocean_stress (update of lab_sea required)
861      - reduce loop boundaries to necessary minimum also in seaice_evp
862      - go back to the old way of computing deltaC/Z as the adjoint likes that
863        better
864    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
865      passive tracer to an Age Tracer) + update output.txt
866    o pkg/exf:
867      - implement A-grid / C-grid selection for wind-stress input files.
868      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
869      for now, in exf_bulk_largeyeager04.F only :
870      - change implementation for case where windspeed + 2. components wind-stress
871        are read-in. AND use rhoConstFresh to convert evap.
872    o pkg/seaice:
873      - use correct EXCH_UV for wind-forcing (on A-grid).
874      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
875        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
876    o pkg/exf:
877      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
878      EXF_INTERPOLATION:
879      - merge global_with_exf/code version of exf_interp_read.F
880        to the main code ;
881      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
882        reading the file ; Important: This options needs to be defined to recover
883        previous code.
884        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
885      - no longer loose real*8 precision along the way when using exf_iprec=64.
886    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
887      - change discretisation of evp-solver in order to avoid another exchange
888        (changes lab_sea) and clean up a little
889      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
890        help the adjoint (this also changes the results slightly)
891      - add a few "_d 0" where they had been missing in seaice_evp.F
892      - cleaning up: remove unused seaice_calc_rhs.F
893    o pkg/exf: some cleaning-up:
894      - change various "constants" into runtime parameters
895      - cleaned-up Large&Yeager04 routine which should eventually
896        replace exf_bulkformulae.F (changed names of S/R and CPP)
897        and merged various ALLOW_ATM_WIND options
898     only used with thsice pkg (in thsice_get_exf.F):
899      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
900        which are used when useStabilityFct_overIce=TRUE (= the default)
901      - change default values of ice & snow emissivity and scale downward LW
902        by ice & snow emissivity.
903    o pkg/thsice:
904     fix few little problems, in thsice_calc_thickn.F:
905      - growth vertically (and not laterally) if iceFrac == iceMaskMax
906      - melt only laterally if hIce < hThinIce (as the comments say)
907      and in thsice_extend.F:
908      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
909      - start to form ice as soon as the minimum ice-volume is reachable.
910     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
911      and cpl_aim+ocn
912    o pkg/kpp
913     - move computation of surface related input fields to KPP into a new
914       subroutine kpp_forcing_surf.F
915     - remove wrong (within bi,bj loops) EXCH calls.
916     - little cleaning (add argument myThid in last position, cvs header ...)
917     - for now, fix conservation problem by exchanging KPPviscAz (may not
918       be the best fix)
919    o pkg/seaice
920     - check for inconsistent evp parameter/cpp-flag combination
921     - remove leftover errIO flat for obsolete name list error handling
922    o OpenAD
923     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
924    
925    checkpoint59a
926    o pkg/seaice: some parameter clarifications and a little bit of clean up
927    o pkg/thsice: rename run-time parameters:
928       himin       -> hIceMin
929       himin0      -> hThinIce
930       hihig       -> hThickIce
931       i0          -> i0swFrac
932       transCoef   -> bMeltCoef
933       frac_energy -> fracMelting
934      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
935       with default values (for now) that do not change the results.
936      remove old version of thsice vars advection in pkg/seaice.
937    o in FFIELDS.h:
938      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
939      - make pLoad & sIceLoad always available (but still only used if
940         ATMOSPHERIC_LOADING is #define).
941    o pkg/kpp: replaced _KPP_RL with _RL
942    o bug fixes for vertical diffusivity computations when both KPP and
943        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
944        are no longer updating the vertical diffusivity array
945        (passed as argument) but are (re-) setting those arrays.
946    o pkg/seaice: fix bug in evp solver, while doing that
947      - change (improve?) discretization of stress computations for both
948        cgrid-lsr and evp solver
949      - add a new routine to compute strain rates
950      - the above changes lab_sea results
951      - add no slip conditions for evp solver (off by default), lsr-version
952        may follow
953      - fix exchange for shear at Z-points (does not change lab_sea)
954      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
955        (to force the user to pick a time step since there is not "safe" way
956        of choosing it)
957      - add principal stress diagnostics
958      - rearrange fields for evp a little to avoid having to call a: too many
959        exchanges and b: exchanges for stress trensor components which we do
960        not have.
961      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
962        of evp, complete rewrite for lsr case (latter is does not yet work
963        in all cases)
964    o pkg/kpp: add code to have mixing in shelf ice caverns
965      - add myThid to all kpp routines (long overdue)
966    
967    checkpoint59
968    o pkg/exf:
969      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
970        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
971      - move exf header files from lower_case.h to UPPER_CASE.h ;
972        add missing cvs Header & Name
973      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
974      - add namelist param. selectStressGridPosition, exf_monFreq
975      - retire many _CLIM routines, and remove data.exf_clim
976        + params moved to data.exf
977        + climsst, climsss now handled by exf_set_gen, i.e.
978          climss?period=0 refers to constant field,
979          climss?period=-12 to monthly forcing
980      - split up namelists in data.exf
981    o pkg/seaice:
982      - remove seaice_exch and seaice_exch_uv
983      - remove superfluous exchange of theta
984      - add myThid to seaice_budget_ocean/ice
985      - add new interface for atmospheric wind forcing (C-grid only)
986        + new routine
987        + two new field (taux, tauy for stress over ice)
988        + removed one global field (DAIRN) for C-grid case only
989    o pkg/thsise
990      - 2nd set of modifs for thsice adjoint in conjunction with exf
991    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
992    
993    checkpoint58y_post
994    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
995      vertical diffusivity, similar to that in MOM4; turned on using
996      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
997      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
998    o Added capability for 3D specification of background vertical diffusion
999      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1000      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1001      "data" file that contains the 3D vertical diffusivity coefficients.
1002    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1003      - add code within pkg thsice to advect & diffuse sea-ice fields
1004      similar to (and will replace) what has been added in  seaice_advdiff.F,
1005      but: - conserving Mass, Heat & Salt.
1006           - better when using non-linear advection scheme (not yet fully tested)
1007           - can also be used in atmospheric set-up (for now, only the diffusion).
1008    
1009    checkpoint58x_post
1010    o IO option for global-file compact format:
1011      - add options when generating topology (utils/exch2/matlab-topology-generator)
1012      - add I/O capability (pkg/mdsio).
1013      - adapt utils/matlab/rdmds.m to read this format.
1014      for now long-line format not yet supported by pkg/mdsio (& exch2).
1015    o shelfice: add a few diagnostics
1016    
1017    checkpoint58w_post
1018    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1019      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1020      (and replace horiVertRatio in NH code).
1021      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1022                         and tutorial_plume_on_slope (sensitive to truncation)
1023    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1024      directly to drive seaice model (C-grid only)
1025    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1026     - reintroduce computation of wind from stress,
1027     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1028       mass points to avoid tau = 0
1029     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1030    o rdmnc.m: make it work with "global" files created with gluemnc
1031    o rdmnc.m : some improvements in dealing with singleton dimension
1032      (tested on all testreport mnc output files).
1033    o genmake2: disable pkg/profiles if netcdf test fails.
1034    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1035    o move call to cal_readparms up to make calendar parameters/variable available
1036      to all packages
1037    
1038    checkpoint58v_post
1039    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1040      useDynP_inEos_Zc tested.
1041    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1042    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1043      and portions thereof.  See read_cs.txt for description and examples.
1044    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1045      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1046      following the great-circle arc between those 2 points.
1047    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1048      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1049    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1050     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1051     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1052     - still needs work (not working with some options ; efficiency to improve)
1053       and serious testing.
1054     - use this scheme for temperature & salinity in 2 advection test exp.:
1055       advect_xy & advect_xz, respectively.
1056    
1057    checkpoint58u_post
1058    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1059  o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.  o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1060  o testreport: add option "-skipdir" to skip some test.  o testreport: add option "-skipdir" to skip some test.
1061  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
# Line 1372  o add two new packages Line 2424  o add two new packages
2424    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2425    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2426      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2427      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2428  o add offline package  o add offline package
2429  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2430    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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