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revision 1.764 by jmc, Thu Jan 11 00:29:41 2007 UTC revision 1.1091 by jmc, Sun Apr 26 02:56:36 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 adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi
8    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
9    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
10      edges are closed (zero depth); might happen with "blank tiles";
11      for now, disable if using OBCS.
12    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
13      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
14    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
15      to reduce length of 1.D array print in STDOUT.
16    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
17      + use 48 tiles (16x8): this will allow to test "blank tiles".
18    o start to test MPI + multi-threaded (change testreport to skip tests
19      where number of tiles do not match).
20    o genmake2: add option "-omp" to turn on Open-MP ;
21      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
22    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
23      and keep the original tile numbering. Note: compatible with old
24      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
25    
26    checkpoint61l
27    o Overlaps had been forgotten in calculating ijk keys : fixed
28    o fix cyrus makedepend for gcc 4.4
29    o experiment fizhi-cs-aqualev20:
30      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
31      and generate new output. Note: new output is much closer to the old
32      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
33      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
34    o pkg/fizhi:
35     - change to avoid indices going deliberately over array-bounds
36     - remove unnecessary MPI stuff
37     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
38     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
39       does not go over array-bounds and therefore returns reliable output.
40     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
41       this S/R has 4 output arguments, which are used inside "get_alarm";
42       when it is called with the same variable "ndum" in place of several
43       output arguments, this produces weird side effect inside "get_alarm"
44      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
45       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
46       address) and produces error.
47    o tools/gemake2: (March 27-29 2009)
48      with option "-mpi": link *_mpi files from "MODS" dir (this is what
49      testreport does).
50    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
51    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
52       update lab_sea.lsr & lab_sea.salt_plume results
53    o pkg/seaice:
54      Major overhaul of the LSOR solver: change discretization from original
55      finite differences to finite volume. The old routine is still in the
56      file seaice_lsr.F and can be turned on with the CPP-flag
57      SEAICE_OLD_AND_BAD_DISCRETIZATION
58      Along with this change, the discretization of the strain rates is changed.
59      The same flag turns on the old discretization in seaice_calc_strainrates.F
60      All verification experiments with seaice are affected (except for
61      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
62      results by setting the above flag.
63      Further changes involve changes in defaults:
64      - ALLOW_FLOODING is defined and turned on by default
65      - SEAICEadvSnow = .true. is now the default
66      - SEAICEadvSalt = .true. is now the default
67      - SEAICEadvAge  = .true. is now the default
68      - SEAICE_clipVelocities  = .false. is now the default
69                                         (as per J. Zhang's recommendation)
70      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
71        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
72      - seaice_growth: replace computation of UG by a simple copy from wspeed
73    
74    checkpoint61k
75    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
76      seaice_lsr: fixed a few metric terms,
77                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
78                  add more debugging diagnostics
79      seaice_evp: removed superfluous many metric terms of FV discretization
80                  of stress divergence
81                  affects lab_sea, lab_sea.hb87
82      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
83                  of stress divergence for non-evp solver
84                  (this part is not tested anywhere)
85      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
86                  they were effectively only half slip
87                  affects lab_sea.hb87
88      updated all relevant verification experiments (except lab_sea//output_adm.txt
89        which was left over, but fails at level 7 & 6)
90    
91    checkpoint61j
92    o pkg/seaice: turn a few hard wired parameters into run time parameters
93    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
94      time in seconds as promised by the usints in seaice_monitor and exf_monitor
95    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
96      that are not cubed-sphere grids
97    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
98    o pkg/ctrl:
99      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
100    o non-hydrostatic (calc_gw.F):
101      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
102      update output of exp. global_ocean.cs32x15.viscA4
103    o remove backward compatibility for thetaMin,phiMin
104      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
105    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
106      interpolated wind field not only for curvilineargrid=.true., but also
107      for a rotated grid (rotateGrid=.true.)
108    o pkg/exf: add capability to bypass interpolation for runoff
109      by setting yet another CPP-flag
110    o eesupp/src, B-grid exchange:
111      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
112    o autodiff
113      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
114      allows to switch to single-prec common blocks;
115      corresponding switch occurs in tamc.h, integer isbyte
116      TAF store directivs "byte" and "kind" seem equivalent;
117      Most tamc.h have been updated correspondingly.
118    
119    checkpoint61i
120    o autodiff:
121      fix autodiff_sore/_restore indices for obcs
122      (spotted by I. Hoteit, M. Mazloff)
123    o pkg/autodiff, pkg/ctrl:
124      Add flag to reduce all tapelev I/O to single-prec.
125      In data.ctrl set
126        doSinglePrecTapelev = .TRUE.
127    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
128      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
129    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
130      real fresh water flux (not yet)
131    o pkg/mdsio & rw:
132     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
133     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
134    o pkg/flt:
135     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
136       init_fixed & ini_varia.
137     - clean-up & simplify linear interpolation S/R:
138       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
139     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
140     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
141     - add vert. coordinate & horiz. indices to output files.
142     - change vertical position in initial condition, from index to depth [m].
143     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
144       (easier to get to a curvilinear grid) ; delX,delY no longer used.
145    o pkg/ggl90: a few modifications:
146     - fix bottom boundary condition, and interpolation of KappaE
147       near top and bottom
148     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
149     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
150     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
151    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
152      (maintain temporary backward compatibility, until next checkpoint)
153    
154    checkpoint61h
155    o pkg/diagnostics with "periodic averaging diagnostics":
156      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
157    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
158    o pkg/obcs: fix loop ranges for balancing code
159    o pkg/flt:
160     - improve criteria for finding which tile owns a float.
161     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
162    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
163      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
164      with ocean biogeo)
165    o pkg/flt:
166     - do some cleaning and fix the restart ;
167     - add output.txt in flt_example/results to get this pkg tested.
168    o genmake2: add an EXTENDED_SRC option and flag.
169       for now, cannot be turned on on command line (only through genmake_local)
170    o pkg/mdsio: read/write vector:
171     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
172     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
173       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
174     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
175      (drop to 4 digits matching for grad). But this test does not look very
176      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
177    
178    checkpoint61g
179    o pkg/flt:
180      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
181       + make OPTIONS file more standard.
182      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
183      - fix _BYTESWAPIO CPP-Flag
184      - standard reading of file-parameter "data.flt"
185      - fix argument list of S/R FLT_RESTART
186      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
187    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
188    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
189      a still unfixed compiler/optimization bug
190    
191    checkpoint61f
192    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
193      update results of global_ocean.cs32x15.icedyn test.
194    o move getcon.F from model/src to pkg/fizhi.
195    o pkg/exf: add parameter for extrapolation of temp up to the surface
196       and option to prevent negative evap (in bulk_largeyeager04 only).
197    o Prather Advection scheme: fix tracer conservation for divergent flow
198      (e.g., when using NonLin Free-Surface).
199    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
200    o gmredi (Visbeck-variable-K):
201     - add more parameters to Visbeck-variable-K.
202     - use a 5 points average for dSigmaR in Visbeck-K calculation
203       (more "homogenous": same stencil and same weights as in dSigmaH)
204     - update output of ideal_2D_oce experiment.
205    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
206      (#undef REAL4_IS_SLOW)
207     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
208       coordinate variable
209     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
210       (surface forcing fields), removes some of the functionality
211     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
212     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
213       probably not all: copy _RS surface flux fields to RL field before
214       calling DIAGNOSTICS_FILL
215     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
216       real*4 (CALL EXCH_*_RS) versions.
217     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
218       (generate new output).
219    
220    checkpoint61e
221    o gmredi (Visbeck-variable-K):
222      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
223      - change computation of Visbeck-K where Slope > Smax :        
224        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
225        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
226    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
227      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
228    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
229    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
230      does not become too large (to avoid precision problems in implicit-diffusion
231      solver); update ideal_2D_oce output.
232    o pkg ggl90:
233      - in ggl90_cal.F: compute only one set of visc/diff, used to
234        step forward TKE/T/S/momentum
235      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
236        have Prandlt =1)
237    o gmredi (fm07):
238      - add lower limit on Transition layer thickness + lower limit on 1/lambda
239      - allow to set few more params from data.gmredi
240    o pkg ggl90:
241          - add missing sqrt(2) factor in computation of mixing length
242            scale in ggl90_calc.F
243            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
244    
245    checkpoint61d
246    o adjoint modifs
247      - adapt to new field rhoInSitu
248      - allow to revert from StoreDynVars2D, StoreDynVars3D
249        to individual fields
250        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
251    o store 3-D (in-situ) density in commom block (DYNVARS.h)
252     - save 1 rho computation.
253     - no longer modify T & S inland when using down_slope pkg.
254    o gad_som : allow to switch to SOM advection for T & S without corresponding
255      pickup files (using new S/R: MDS_CHECK4FILE).
256    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
257      (for useSingleCpuIO to work in multi-threaded)
258    o pkg/shelfice:
259     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
260       with SHELFICEtopoFile in data.shelfice
261     - move code for reading ice shelf topography and modifying hFacC into separate
262       subroutines of the shelfice package
263     - separate initialisation of "fixed" and "variable" variables
264     - kTopC is not (yet) replaced by kSurfC, although this is possible
265    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
266    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
267      and rename:
268      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
269      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
270    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
271    
272    checkpoint61c
273    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
274      to add mass source/sink of fluid in the interior (3-D generalisation
275      of oceanic real-fresh water flux).
276    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
277    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
278    o new pkg: down_slope
279      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
280      - presently, modify T & S inland (dwnslp_calc_rho.F).
281        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
282      - implementation for ocean in P-coords not tested.
283      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
284    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
285      (to facilitate conversion of oceanic pkg to p-coordinate).
286    o change FIND_RHO to FIND_RHO_2D :
287      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
288    o new pkg: cheapaml
289    
290    checkpoint61b
291    o exch2:
292      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
293      - no longer depend on the order sequence (N,S,E,W).
294      - 3rd exchange no longer needed (tested with 24 tiles).
295      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
296      - exch_UV_A-grid readily available (but not yet tested).
297      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
298      (both are no longer needed) in exch_uv: no effect in forward run; but
299       get truncation error differences with adjoint exch.
300    o exch2:
301     - change index-bounds storage (moved from target to local tile,
302       more intuitive this way) ; rename/remove some variables.
303     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
304    
305    checkpoint61a
306    o exch2/matlab-topology-generator:
307      fix bug in index bounds for N-S internal exchange (hard to tell if this
308      had any effect on the solution).
309    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
310      is exceeded
311    o testreport: modify syntax of awk, so that it works also with
312      awk, and not only with nawk and gawk
313    
314    checkpoint61
315    o autodiff
316      Change default for TAF usage by removing argument '-nonew_arg'
317      This changes TAF subroutine argument list (ordering of active var.)
318      Omission of this flag leads to incompatibility w.r.t. TAMC
319      To restore TAMC-compatibility, need following modifs:
320      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
321      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
322      Tested TAF version is 1.9.22
323      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
324    
325    checkpoint60
326    --->>> This is the last checkpoint for which generating the adjoint
327    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
328    --->>> by default.
329    --->>> Future checkpoints will ommit this flag by default.
330    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
331    o pkg/grdchk: Add gradient check to etan0 perturbations.
332    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
333    o pkg/autodiff: more flexibility in zeroadj.
334      model/src: modifying do_oceanic_phys.F accordingly.
335    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
336    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
337      special setup of gmredi for which the adjoint is stable
338      enough for parameter optimization.
339    o bridging the gap between eddy stress and GM.
340      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
341          along with a change in CPP option (now ALLOW_EDDYPSI).
342      -> when using GM w/ GM_AdvForm:
343          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
344          is applied either in the tracer Eq. or in momentum Eq.
345          depending on data.gmredi (intro. GM_InMomAsStress).
346      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
347      The key modifications are in model/src/taueddy_external_forcing.F
348      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
349    
350    checkpoint59r
351    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
352      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
353      fix option to read coriolis(@ cell-corner) from files with CS-grid.
354    o pkg/mnc: add some attributes to standard 1D-coordinate variables
355    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
356      mass points, when using mnc for output
357      - add runtime parameter (missing_value, missing_value_int) to override
358        default (which is the value of getcon('UNDEF'))
359    o pkg/mnc: prepare mnc for the actual use of missing values with the
360      diagnostics package: small fix in mnc_cw_readwrite.template and more
361      initialisation of never used fields
362      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
363      versions
364    o pkg/thsice/thsice_ini_vars.F added default initial values so that
365      thermodynamics sea ice solver does not blow up when some initial fields
366      are missing.
367    o move from external_forcing_surf.F to ini_forcing.F
368      the p-coord. hack consisting in using pLoad to set phi0surf ;
369      update output of tutorial_global_oce_in_p (affected @ truncation level).
370    o Freshen up a bit hs94.1x64x5, notably:
371      remove rotationPeriod and tRef=5*0. (adjoint only), and add
372      exactConserv=.TRUE.
373    o pkg/generic_advdiff:
374      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
375      applies to files where Temperature & Salinity 2nd Order moments are used.
376    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
377      this uses a dynamically allocated internal state data structure
378      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
379      and requires a fortran 90 compiler
380    
381    checkpoint59q
382    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
383       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
384    o Refresh tutorial_global_oce_biogeo, notably:
385      - change bathymetry (put back seamounts in ACC, use hFacs)
386      - change EOS (POLY3 --> JMD95Z)
387      - use Bryan-Lewis vertical diffusivity
388      - use multidimensional advection
389      - remove old virtual virtual in dic pkg, now done through ptracer pkg
390      - change a couple of parameters in dic pkg
391    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
392    o pkg/obcs: change default to OBCSfixTopo = .true.,
393      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
394      - replace "debugMode" with "debugLevel .GE. debLevB"
395    o implementation of TAF directives for gchem,cfc,dic
396    o remove "exp5" (replaced by tutorial_deep_convection).
397    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
398      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
399      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
400      --> changes results in exp4, seaice_obcs
401    o tutorial_deep_convection :
402      update the set-up and increase resolution and domain size ; start
403      from pseudo initial conditions = output at t=120mn in order to see
404      something happening when running testreport.
405    o pkg/seaice: add os7mp as an advection scheme
406                  add check for advection schemes
407                  add a flag for restoring T and S underneath sea ice
408    o pkg/my82: add netcdf-support and diagnostics
409    o thsice pkg:
410      - Now hsMax limits snow height by turning it into ice following
411        flooding scheme (and now conserving energy)
412      - Slight rewriting of the formula in thsice_calc_thick.F
413      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
414      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
415    
416    checkpoint59p
417    o gchem / dic / cfc :
418      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
419      - add new parameter files: "data.dic" & "data.cfc" ;
420      - various re-arrangement in initialisation & header file ;
421      - fix tutorial_global_oce_biogeo for multi-threaded test.
422    o pkg/dic: test for "pickup_dic" file when restarting ;
423      if no pickup-file, can restart with a re-initialised pH (same as it did
424      before) providing pickupStrictlyMatch is set to False.
425    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
426      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
427    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
428      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
429    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
430     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
431       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
432    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
433       scheme to use for vorticty-term ;
434     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
435       (with default selectVortScheme, return to original discretisation)
436     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
437    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
438    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
439      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
440      also fix diagnostics VISCAHW & VISCA4W.
441    
442    checkpoint59o
443    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
444    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
445      move a few statemens out the main loop into separate loops
446    o pkg/shelfice:
447      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
448        (kg/m^2/s), does not break tests, because in verification/isomip,
449        rhoConstFresh=rhoConst (by accident)
450      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
451      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
452        new file model/src/seawater.F, so that they are available for all pkgs.
453      - convert potential temperature into in-situ temperature. This changes the
454        isomip tests => update tests
455    o add a flag writePickupAtEnd (default=true) to be able to suppress
456      writing a pickup at the last timestep
457    o tools/mpack-1.6 :
458      - disable automake (not working) and autoconf (not needed).
459      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
460        also cleaner with much less compilation warnings.
461    o pkg/profiles:
462      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
463      (for "less than 32 characters name" compiler requirement)
464    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
465      conditions that have a different sampling frequency than S/T/U/V obcs
466    o pkg/diagnostics (stats-diags):
467      - fix global Min/Max in case 1 processor get only empty tiles
468    o genmake2: replace (4 times)
469         make genmake_tc_1.o >> genmake_warnings 2>&1
470      with
471         COMM="$CC $CFLAGS -c genmake_tc_1.c"
472         echo $COMM >> genmake_warnings
473         $COMM >> genmake_warnings 2>&1
474      to make genmake2 always see the value of CC as specified in the optfile.
475    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
476      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
477      - modify verification advect_cs test to test SOM-advection on CS-grid.
478    o pkg/ctrl:
479      - Rewrite of ctrl_map_ini_ecco.F,
480        introducing a generic routine (ctrl_map_ini_gen.F).
481      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
482    
483    checkpoint59n
484    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
485      number in dedicate array "hdiag":
486      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
487        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
488      - many small changes (integer format) for large number of diagnostics
489      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
490        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
491    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
492      usingSphericalGrid, this allows to define the rotated grid coordinates
493      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
494      geographical coordinates according to the inverse of the rotation defined
495      by the Euler angles, so that Coriolis parameter and online-interpolation by
496      exf works with the geographical coordinates on XC/YC/XG/YG.
497      Naturally, this feature does not work with all packages, so some
498      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
499      profiles), because there the coordinates are assumed to be regular
500      spherical grid coordinates.
501    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
502      - introduce isopycnal diffusion coefficient control.
503    o tools/adjoint_options:
504      - additional control vector components.
505    o pkg/mnc: have mnc create marginally meaning full coordinate variables
506      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
507    o pkg/mypackage:
508      - add example of read/write pickup for state-var ;
509      - add entry points to the main code for state-vars diags & write-pickup.
510    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
511      transitions for useExfYearlyFields
512      - add new subroutine that determines the file to read from for
513        use*YearlyFields = .TRUE. and .FALSE.
514      - add a verification experiment to global_with_exf that tests
515        useExfYearlyFields with USE_EXF_INTERPOLATION defined
516    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
517      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
518      subroutines (which could be generated from a template, because they are
519      almost identical), for now they are included in obcs_prescribe_read.F for
520      simplicity
521    o pkg/exf:
522      - add a little more diagnostic to exf_interp_read (in analogy to
523        mds_read_field, can be turned off with debugLevel < debugLevA=1)
524      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
525        ugly but fast by unrolling short inner loops, inserting a unroll=8
526        directive in routine lagran, and splitting a loop and making do while the
527        outermost loop (the latter requires the intoduction of index arrays)
528    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
529    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
530      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
531    o verification/seaice_obcs: updated for restart test and latest options
532    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
533      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
534      for now this is only available for the C-grid code and also within
535      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
536    
537    checkpoint59m
538    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
539      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
540    o gad_som : fix flux output (& diagnostics) to have same units as other  
541      advection scheme fluxes (was previously multiplied by deltaT).  
542    o added verification/seaice_obcs both to test seaice open boundaries
543      and to provide an example matlab scrpt for generating them
544    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
545    o pkg/salt_plume: clean up salt_plume_frac.F to
546      remove redundancy in PlumeMethod 1 and 4
547    o pkg/kpp: added saltplume diagnostics
548    o pkg/obcs and pkg/seaice:
549      - do not set uice and vice to zero when OB*icefile are unspecified
550      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
551      - moved seaice tracer obcs after call to seaice_growth
552    o pkg/salt_plume: added various options for salt plume depth
553      criterion and for vertical distribution of the salt
554    
555    checkpoint59l
556    o pkg/ptracers: new version of ptracers pickup:
557      read meta file and write only fields which are needed to restart.
558      ( same logic as main pickup file ; also using pickupStrictlyMatch )
559    o pkg/seaice:
560      - add timescale for melting due to warm mixed layer as a means of
561        setting SEAICE_availHeatFrac more conveniently
562      - add a CPP-flag/runtime parameter check for flooding algorithm
563      - reformulated availHeat in seaice_growth.F to be independent of AREA
564    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
565      unit changes
566    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
567    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
568      SX vector computer.
569    o pkg/seaice:
570      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
571        seaice forcing fields can now be read only through pkg/exf
572      - removed some unused halos
573    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
574    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
575      or U/VICE from U/VWIND before computing U/VSTRESS
576    
577    checkpoint59k
578    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
579      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
580    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
581      all experiments pass when compile with un-initialised var. checking option.
582    o added pkg/salt_plume
583    o script to test restart (for now, in MITgcm_contrib/jmc_script)
584    o pkg/seaice: new read/write pickup version.
585      read meta file and write only fields which are needed to restart.
586      ( same logic as main pickup file ; also using pickupStrictlyMatch )
587    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
588    o lab_sea.hb87: modify the domain & update output.hb87.txt :
589      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
590      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
591      process. Fixed here by closing the domain at the Northern boundary.
592    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
593    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
594      a set of consecutive levels in/from a 3-D array.
595    o pkg/ptracers:
596      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
597      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
598    
599    checkpoint59j
600    o in pkgs: dic, obcs, offline, rbcs:
601      standard way to compute coeff. for time interpolation between 2 time reccords
602      which retains full precision (& make results less dependent on compiler).
603      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
604    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
605      packages instead of reading ice cover and wind speed separately
606    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
607     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
608      to allow to compile customized code before the update)
609    o cleaning-up:
610      - fix CPP instruction syntax in pkg/obcs
611      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
612        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
613      - fix some threads issue in IO parts.
614    o pkg/dic:
615      - add tons of "_d 0" (--> much better testreports !)
616       and then update outputs of tutorial_global_oce_biogeo
617    o pkg/mom_fluxform:
618      add a special version of momentum advection intended to conserve momentum
619      next to a bathymetry step or a coastline edge. (default = off = #undef)
620    o new read/write pickup version:
621      - for now, only implemented for main (mdsio) pickup file.
622      - write out only what is needed to restart; merge pickup_nh , pickup_ph
623        and main pickup together.
624      - read meta file; read only what is needed to restart; stop if a field
625        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
626        if it make sense (even if the restart is not perfect).
627      - if no meta file, assume that pickup to read corresponds exactly to
628        a pickup that would currently be written.
629      - read pickup written in the old format (until checkpoint59i) if it
630        recognizes an old meta file (no field-list).
631      - add a meta file in exp. which starts from a pickup: 2 cases:
632        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
633         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
634        b) a meta file describing the content of the associated pickup file
635         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
636    o pkg/mdsio & pkg/rw:
637      - new routine to read a meta file ; new set of routine to read
638        Multiple-fields file (with meta file).
639    o added open boundary conditions capability for seaice
640        HSNOW, HSALT, UICE, and VICE
641    
642    checkpoint59i
643    o adjoint:
644      * fix multiDimAdvection adjoint
645        (partial recomputation problem by TAF for fVerT(:,:,kDown)
646        and comlev1 size definition (maxpass vs. max. number of tracers)
647      * verification/global_ocean.90x45x15 adjoint now tests
648        NLFS and multiDimAdvection using DST3 (=30)
649      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
650    o pkg/kpp: add "_d 0" to real constant (if missing);
651      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
652      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
653    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
654      for internal parameters related to restart process (formerly from PARAMS.h)
655      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
656    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
657      as argument. (only atm2d & obcs write_pickup have not yet been updated)
658    o pkg/monitor:
659      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
660      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
661      - account for deep Atmosphere factor and density factor (anelastic)
662    o added open boundary conditions capability for seaice HEFF and AREA
663    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
664      thermodynamics
665      - requires a little reorganization, which affects the testreport results
666        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
667        so that now the conservative form is tested
668      - add a few comments
669    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
670    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
671    o add new diagnostics to seaice: advective, diffusive fluxes (only for
672      multidim-advection, for scheme 2 they are not filled) and transports,
673      thermodynamic growth rates
674    o change units of EmPmR (inside the code, + within coupling interface)
675      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
676      Affects results @ truncation level (cg2d match) and update output of
677       experiments: lab_sea(6), global_ocean.90x40x15(10),
678      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
679      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
680      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
681      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
682    
683    checkpoint59h
684    o pkg/exf:
685      - improve vectorization by moving if-statement out of loops in
686        exf_mapfields, exf_radiation
687      - exf_bulkformulae.F: introduce 2D fields and vectorize code
688    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
689    o testreport:
690      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
691        monitor & update offline_exf_seaice exp. output.
692      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
693    o pkg/seaice:
694      - bug fix in the evp solver: boundary conditions were affected be
695        masking of zMax/zMin (changes results)
696      - minor bug fix in boundary conditions in seaice_calc_strainrates
697        (changes results for no_slip)
698      - seaice_lsr.F: make interpolation of eta dependent on boundaries
699      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
700      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
701        stress formulation and no-slip boundary conditions
702    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
703      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
704    o pkg/seaice: a first HSALT time stepping equation has been checked in
705    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
706      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
707      without requiring DO-IF statements
708    o pkg/thsice:
709      use continuous power-law function for partition of energy between lateral
710      melting/freezing and thinning/thickening ; old code using step function
711      still available with #undef THSICE_FRACEN_POWERLAW
712      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
713    o testreport: change AD testing : check against results/output_adm.txt
714      using same scripts as for forward test.
715    
716    checkpoint59g
717    o adjoint testing: in preparation for changing testreport:
718      - output format: cost and grad written on separated lines
719      - ad output results in directory "results" (instead of "results_ad")
720    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
721    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
722    o pkg/ecco: allow user defined cost function contributions
723    o testreport:
724      Allow to choose (per experiment) the list of tested output variables
725       and the main variable (used to issue a pass/FAIL ) ;
726      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
727      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
728      Also modify printing of summary:
729       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
730       b) echo the list of tested variables in the individual summary.txt of
731          each experiment.
732    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
733      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
734      (but still depend on the tile decompostion of the domain).
735    o pkg/seaice: change a discretization detail to make the B-grid code
736      "more symmetric". This change is likely to remove all "ridges/leads" that
737      where quasi-aligned with the grid in B-grid solutions. It may also be
738      the solution to the stress coupling issues with the B-grid.
739    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
740      remove .cvsignore from input dir. (since testreport no longer run here).
741    o pkg/thsice:
742     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
743     - fix reshaping of sea-ice just after advection:
744       melt all the ice only if ice-volume is too small.
745     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
746       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
747     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
748    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
749      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
750    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
751      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
752      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
753      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
754      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
755      -> update output.txt
756    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
757     this affects truncation error: -> update output.txt of exp:
758      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
759      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
760    
761    checkpoint59f
762    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
763    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
764      a bounded range (in forward mode)
765    o pkg/ecco, ctrl, autodiff and mom_common:
766     internal parameter controls, completements of implementations
767    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
768    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
769      (not seem any difference in testing results).
770    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
771       at face corners.
772    o pkg/generic_advdiff:
773     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
774      loop range indices for computing vertical advection tendency
775      and do the calculation in the interior only (no overlap) ;
776      for now, only implemented for SOM advection (to save CPU time).
777     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
778    o exch2 adjoint
779      First set of changes:
780      - add exch2 hand-written adjoint templates
781      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
782        This will require cleanup in pkg/autodiff/*.F
783        (changed routines currently kept separate in verif. code/)
784      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
785        that used to hide exch2 or cubed-sphere specific code
786        (commented via 'cph-exch2')
787    o pkg/seaice
788      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
789    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
790       output of global_ocean.cs32x15.thsice .
791    
792    checkpoint59e
793    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
794      for B-grid vector (not yet tested) and C-grid vector (<- only used
795      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
796    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
797      (#ifdef ALLOW_SALT_PLUME)
798    o gather_2d/scatter_2d: removed halo regions
799    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
800      scheme and the corresponding test case (under front_relax dir). For now,
801      only available with Skew-flux form and not yet tested in realistic set-up.
802      adjoint: store directives updated, but gradient checks deteriorated,
803      so maybe GM/Redi adjoint is now broken.
804    o seaice adjoint
805      * add AREA, HEFF, HSNOW as control variable
806        (should not change lab_sea results)
807      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
808    o pkg/seaice:
809      * added computation of saltFlux in seaice_growth;
810        For time being, sea ice salinity is assumed constant
811        contribution of snow flooding to freshening of sea ice is neglected.
812        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
813        defaults to 0.0 in order to maintain backward compatibility.
814        Typical values for SEAICE_salinity are 4 to 10 g/kg.
815      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
816      * added SEAICE_availHeatFrac, which specifies fraction of surface level
817        heat content used to melt or grow ice
818      * commented out cap of HICE: it helps keep ice thinner
819      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
820      * applied OBCS T/S mask to HEFFM sea ice mask
821    
822    checkpoint59d
823    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
824     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
825     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
826    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
827     and change default value of parameter "GM_Small_Number";
828     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
829       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
830       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
831    o pkg/ecco: cost function when applying pkg/smooth to controls
832    o pkg/ctrl: add forcingPrecond run time parameter
833    o pkg/seaice:
834     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
835     - fix bug in metric terms of u-equation in LSR solver (implicit part),
836       changes verification/lab_sea
837     - rearrange implicit part of u-equation in LSR solver to make it easier to
838       read, understand, and debug. This causes changes at the truncation level.
839     - fix (serious) bug in the boundary conditions (sign error in the implicit
840       part) of the LSR solver. Changes all LSR results.
841     - fixed problem with HSNOW initialization to avoid thick snow when AREA
842       is initilized with small values - does not change lab_sea results.
843     - added HsnowFile initialization capability
844    o pkg/smooth: addition to model/src and pkg/ctrl so allow
845     initialization of pkg/smooth and application to control vector
846    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
847    o dependencies: pkg/profiles requires pkg/cal
848    o pkg/profiles:
849     - added option ALLOW_PROFILES_GENERICGRID
850         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
851         that interpolation information (grid points and coefficients) is provided
852         within the netcdf input files.
853         -> sample matlab scripts can be found in MITgcm_contrib/gael
854         that allow you to prepare netcdf input files.
855     - also modified: cleaner include statements, cleaner error print statements,
856       cleaner stops when error, and more tests of the netcdf input files consistency.
857    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
858    o pkg/seaice:
859     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
860       requires a new routine: seaice_diagnostics_fill.F
861     - make sure that seaice does not move if not forced (pressure replacement
862       method, Hibler and Ip, 1995), changes results
863     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
864     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
865       It is turned off by default (=-1.), because it changes the results.
866     - make it possible to read AREA from a file, too.
867    
868    checkpoint59c
869    o add S/R and diagnostics for oceanic mixed-layer depth
870    o move GMRedi call after all vertical mixing schemes (including KPP)
871    o pkg/thsice:
872     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
873      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
874    o pkg/obcs:
875     - bug fix for balance code
876    o pkg/seaice:
877      - allow values of SEAICE_elasticParm > 1
878      - add new parameter SEAICE_evpTauRelax as an alternative
879        to SEAICE_elasticParm
880      - make lsr boundary conditions free slip (by default), changes result
881      - add code for no slip boundary conditions for lsr
882      - set minimum of zeta to zero (and not 4e8) (changes results)
883      - add a cap on AREA after advecting AREA if seaice_growth is not called
884    o change calculation of Visbeck K:
885      - no longer depend on tapering scheme; instead, compute slope (limited
886        by GM_maxSlope). this is equivalent to what was comuted before with
887        clipping or linear tappering.
888      - fix vertical averaging (wrong by 1/2 level)
889      - leave the old version (but will not be maintained) within
890        #ifdef OLD_VISBECK_CALC / #endif
891      - update output of exp. ideal_2D_oce
892    o change error catch in calc_r_star to improve vectorization
893    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
894      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
895    o adjoint:
896      Re-organized adjoint checkpointing according to Matt Mazloff
897      (but with modifs/completions/cleanups)
898      Storing is now bundled into large arrays to optimized I/O
899      (and second step in cleanup of the_main_loop)
900    
901    checkpoint59b
902    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
903      - export/import (between ocean & coupler) fields needed for ocean DIC.
904    o pkg/seaice:
905      - get rid of three more exchanges seaice_calc_viscosities (required
906        different loop boundaries in seaice_lsr and seaice_ocean_stress)
907      - bug fix in seaice_ocean_stress (update of lab_sea required)
908      - reduce loop boundaries to necessary minimum also in seaice_evp
909      - go back to the old way of computing deltaC/Z as the adjoint likes that
910        better
911    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
912      passive tracer to an Age Tracer) + update output.txt
913    o pkg/exf:
914      - implement A-grid / C-grid selection for wind-stress input files.
915      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
916      for now, in exf_bulk_largeyeager04.F only :
917      - change implementation for case where windspeed + 2. components wind-stress
918        are read-in. AND use rhoConstFresh to convert evap.
919    o pkg/seaice:
920      - use correct EXCH_UV for wind-forcing (on A-grid).
921      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
922        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
923    o pkg/exf:
924      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
925      EXF_INTERPOLATION:
926      - merge global_with_exf/code version of exf_interp_read.F
927        to the main code ;
928      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
929        reading the file ; Important: This options needs to be defined to recover
930        previous code.
931        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
932      - no longer loose real*8 precision along the way when using exf_iprec=64.
933    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
934      - change discretisation of evp-solver in order to avoid another exchange
935        (changes lab_sea) and clean up a little
936      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
937        help the adjoint (this also changes the results slightly)
938      - add a few "_d 0" where they had been missing in seaice_evp.F
939      - cleaning up: remove unused seaice_calc_rhs.F
940    o pkg/exf: some cleaning-up:
941      - change various "constants" into runtime parameters
942      - cleaned-up Large&Yeager04 routine which should eventually
943        replace exf_bulkformulae.F (changed names of S/R and CPP)
944        and merged various ALLOW_ATM_WIND options
945     only used with thsice pkg (in thsice_get_exf.F):
946      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
947        which are used when useStabilityFct_overIce=TRUE (= the default)
948      - change default values of ice & snow emissivity and scale downward LW
949        by ice & snow emissivity.
950    o pkg/thsice:
951     fix few little problems, in thsice_calc_thickn.F:
952      - growth vertically (and not laterally) if iceFrac == iceMaskMax
953      - melt only laterally if hIce < hThinIce (as the comments say)
954      and in thsice_extend.F:
955      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
956      - start to form ice as soon as the minimum ice-volume is reachable.
957     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
958      and cpl_aim+ocn
959    o pkg/kpp
960     - move computation of surface related input fields to KPP into a new
961       subroutine kpp_forcing_surf.F
962     - remove wrong (within bi,bj loops) EXCH calls.
963     - little cleaning (add argument myThid in last position, cvs header ...)
964     - for now, fix conservation problem by exchanging KPPviscAz (may not
965       be the best fix)
966    o pkg/seaice
967     - check for inconsistent evp parameter/cpp-flag combination
968     - remove leftover errIO flat for obsolete name list error handling
969    o OpenAD
970     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
971    
972    checkpoint59a
973    o pkg/seaice: some parameter clarifications and a little bit of clean up
974    o pkg/thsice: rename run-time parameters:
975       himin       -> hIceMin
976       himin0      -> hThinIce
977       hihig       -> hThickIce
978       i0          -> i0swFrac
979       transCoef   -> bMeltCoef
980       frac_energy -> fracMelting
981      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
982       with default values (for now) that do not change the results.
983      remove old version of thsice vars advection in pkg/seaice.
984    o in FFIELDS.h:
985      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
986      - make pLoad & sIceLoad always available (but still only used if
987         ATMOSPHERIC_LOADING is #define).
988    o pkg/kpp: replaced _KPP_RL with _RL
989    o bug fixes for vertical diffusivity computations when both KPP and
990        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
991        are no longer updating the vertical diffusivity array
992        (passed as argument) but are (re-) setting those arrays.
993    o pkg/seaice: fix bug in evp solver, while doing that
994      - change (improve?) discretization of stress computations for both
995        cgrid-lsr and evp solver
996      - add a new routine to compute strain rates
997      - the above changes lab_sea results
998      - add no slip conditions for evp solver (off by default), lsr-version
999        may follow
1000      - fix exchange for shear at Z-points (does not change lab_sea)
1001      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1002        (to force the user to pick a time step since there is not "safe" way
1003        of choosing it)
1004      - add principal stress diagnostics
1005      - rearrange fields for evp a little to avoid having to call a: too many
1006        exchanges and b: exchanges for stress trensor components which we do
1007        not have.
1008      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1009        of evp, complete rewrite for lsr case (latter is does not yet work
1010        in all cases)
1011    o pkg/kpp: add code to have mixing in shelf ice caverns
1012      - add myThid to all kpp routines (long overdue)
1013    
1014    checkpoint59
1015    o pkg/exf:
1016      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1017        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1018      - move exf header files from lower_case.h to UPPER_CASE.h ;
1019        add missing cvs Header & Name
1020      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1021      - add namelist param. selectStressGridPosition, exf_monFreq
1022      - retire many _CLIM routines, and remove data.exf_clim
1023        + params moved to data.exf
1024        + climsst, climsss now handled by exf_set_gen, i.e.
1025          climss?period=0 refers to constant field,
1026          climss?period=-12 to monthly forcing
1027      - split up namelists in data.exf
1028    o pkg/seaice:
1029      - remove seaice_exch and seaice_exch_uv
1030      - remove superfluous exchange of theta
1031      - add myThid to seaice_budget_ocean/ice
1032      - add new interface for atmospheric wind forcing (C-grid only)
1033        + new routine
1034        + two new field (taux, tauy for stress over ice)
1035        + removed one global field (DAIRN) for C-grid case only
1036    o pkg/thsise
1037      - 2nd set of modifs for thsice adjoint in conjunction with exf
1038    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1039    
1040    checkpoint58y_post
1041    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1042      vertical diffusivity, similar to that in MOM4; turned on using
1043      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1044      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1045    o Added capability for 3D specification of background vertical diffusion
1046      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1047      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1048      "data" file that contains the 3D vertical diffusivity coefficients.
1049    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1050      - add code within pkg thsice to advect & diffuse sea-ice fields
1051      similar to (and will replace) what has been added in  seaice_advdiff.F,
1052      but: - conserving Mass, Heat & Salt.
1053           - better when using non-linear advection scheme (not yet fully tested)
1054           - can also be used in atmospheric set-up (for now, only the diffusion).
1055    
1056    checkpoint58x_post
1057    o IO option for global-file compact format:
1058      - add options when generating topology (utils/exch2/matlab-topology-generator)
1059      - add I/O capability (pkg/mdsio).
1060      - adapt utils/matlab/rdmds.m to read this format.
1061      for now long-line format not yet supported by pkg/mdsio (& exch2).
1062    o shelfice: add a few diagnostics
1063    
1064    checkpoint58w_post
1065    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1066      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1067      (and replace horiVertRatio in NH code).
1068      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1069                         and tutorial_plume_on_slope (sensitive to truncation)
1070    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1071      directly to drive seaice model (C-grid only)
1072    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1073     - reintroduce computation of wind from stress,
1074     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1075       mass points to avoid tau = 0
1076     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1077    o rdmnc.m: make it work with "global" files created with gluemnc
1078    o rdmnc.m : some improvements in dealing with singleton dimension
1079      (tested on all testreport mnc output files).
1080    o genmake2: disable pkg/profiles if netcdf test fails.
1081    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1082    o move call to cal_readparms up to make calendar parameters/variable available
1083      to all packages
1084    
1085    checkpoint58v_post
1086    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1087      useDynP_inEos_Zc tested.
1088    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1089    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1090      and portions thereof.  See read_cs.txt for description and examples.
1091    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1092      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1093      following the great-circle arc between those 2 points.
1094    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1095      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1096    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1097     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1098     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1099     - still needs work (not working with some options ; efficiency to improve)
1100       and serious testing.
1101     - use this scheme for temperature & salinity in 2 advection test exp.:
1102       advect_xy & advect_xz, respectively.
1103    
1104    checkpoint58u_post
1105    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1106  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.
1107  o testreport: add option "-skipdir" to skip some test.  o testreport: add option "-skipdir" to skip some test.
1108  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 2471  o add two new packages
2471    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2472    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2473      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2474      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2475  o add offline package  o add offline package
2476  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2477    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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