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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1102 by dimitri, Sat May 23 15:39:11 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/seaice:
8  o moved ptracer ctrl index 17 -> 32     Adding separate sea ice albedo and drag coefficients in Southern Ocean
9       from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
10    o SingleCpuIO:
11       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
12    o pkg/seaice:
13       put exchanged variable in (local) common block for MPI+Multi-Threads
14       to work (necessary with exch1, and for now with exch2 too).
15    o verification: to get more experiments tested with mpi, mth and mpi+mth,
16      change tiling of:
17       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
18       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
19      update output of exp:
20       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
21       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
22      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
23                       (note: output.txt generated on faulks using only 1 tile)
24    o eesupp & mdsio (SingleCpuIO):
25     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
26       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
27       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
28     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
29     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
30       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
31    o pkg/exch2:
32     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
33       read parameter file "data.exch2" if it exists; otherwise try default regular
34       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
35     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
36       with new code (not to be used, just as a backup solution).
37     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
38       in utils/exch2/input.
39    
40    checkpoint61n
41    o eesupp & mdsio (SingleCpuIO):
42      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
43        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
44        receive real*4 array (instead of real*8) to read/write 32.bit files.
45        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
46         and remove new mapping S/R)
47    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
48      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
49        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
50        when using exch2. Add S/R to map global io-buffer to global model array.
51      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
52    
53    checkpoint61m
54    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
55      and add 3 other S/R for other types (R4,R8,RS).
56      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
57    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
58     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
59     - reduce number of macro definitions (keep only those which are used);
60       can always call directly the corrresponding S/R if needed.
61     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
62       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
63     Fixed wrong type of arg in:
64       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
65       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
66     To fix: global_sum of var in common block is wrong (multi-threaded) in:
67       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
68     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
69    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
70      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
71    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
72    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
73      edges are closed (zero depth); might happen with "blank tiles";
74      for now, disabled if using OBCS.
75    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
76      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
77    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
78      to reduce length of 1.D array print in STDOUT.
79    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
80      + use 48 tiles (16x8): this will allow to test "blank tiles".
81    o start to test MPI + multi-threaded (change testreport to skip tests
82      where number of tiles do not match).
83    o genmake2: add option "-omp" to turn on Open-MP ;
84      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
85    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
86      and keep the original tile numbering. Note: compatible with old
87      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
88    
89    checkpoint61l
90    o Overlaps had been forgotten in calculating ijk keys : fixed
91    o fix cyrus makedepend for gcc 4.4
92    o experiment fizhi-cs-aqualev20:
93      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
94      and generate new output. Note: new output is much closer to the old
95      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
96      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
97    o pkg/fizhi:
98     - change to avoid indices going deliberately over array-bounds
99     - remove unnecessary MPI stuff
100     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
101     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
102       does not go over array-bounds and therefore returns reliable output.
103     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
104       this S/R has 4 output arguments, which are used inside "get_alarm";
105       when it is called with the same variable "ndum" in place of several
106       output arguments, this produces weird side effect inside "get_alarm"
107      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
108       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
109       address) and produces error.
110    o tools/gemake2: (March 27-29 2009)
111      with option "-mpi": link *_mpi files from "MODS" dir (this is what
112      testreport does).
113    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
114    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
115       update lab_sea.lsr & lab_sea.salt_plume results
116    o pkg/seaice:
117      Major overhaul of the LSOR solver: change discretization from original
118      finite differences to finite volume. The old routine is still in the
119      file seaice_lsr.F and can be turned on with the CPP-flag
120      SEAICE_OLD_AND_BAD_DISCRETIZATION
121      Along with this change, the discretization of the strain rates is changed.
122      The same flag turns on the old discretization in seaice_calc_strainrates.F
123      All verification experiments with seaice are affected (except for
124      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
125      results by setting the above flag.
126      Further changes involve changes in defaults:
127      - ALLOW_FLOODING is defined and turned on by default
128      - SEAICEadvSnow = .true. is now the default
129      - SEAICEadvSalt = .true. is now the default
130      - SEAICEadvAge  = .true. is now the default
131      - SEAICE_clipVelocities  = .false. is now the default
132                                         (as per J. Zhang's recommendation)
133      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
134        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
135      - seaice_growth: replace computation of UG by a simple copy from wspeed
136    
137    checkpoint61k
138    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
139      seaice_lsr: fixed a few metric terms,
140                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
141                  add more debugging diagnostics
142      seaice_evp: removed superfluous many metric terms of FV discretization
143                  of stress divergence
144                  affects lab_sea, lab_sea.hb87
145      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
146                  of stress divergence for non-evp solver
147                  (this part is not tested anywhere)
148      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
149                  they were effectively only half slip
150                  affects lab_sea.hb87
151      updated all relevant verification experiments (except lab_sea//output_adm.txt
152        which was left over, but fails at level 7 & 6)
153    
154    checkpoint61j
155    o pkg/seaice: turn a few hard wired parameters into run time parameters
156    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
157      time in seconds as promised by the usints in seaice_monitor and exf_monitor
158    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
159      that are not cubed-sphere grids
160    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
161    o pkg/ctrl:
162      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
163    o non-hydrostatic (calc_gw.F):
164      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
165      update output of exp. global_ocean.cs32x15.viscA4
166    o remove backward compatibility for thetaMin,phiMin
167      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
168    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
169      interpolated wind field not only for curvilineargrid=.true., but also
170      for a rotated grid (rotateGrid=.true.)
171    o pkg/exf: add capability to bypass interpolation for runoff
172      by setting yet another CPP-flag
173    o eesupp/src, B-grid exchange:
174      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
175    o autodiff
176      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
177      allows to switch to single-prec common blocks;
178      corresponding switch occurs in tamc.h, integer isbyte
179      TAF store directivs "byte" and "kind" seem equivalent;
180      Most tamc.h have been updated correspondingly.
181    
182    checkpoint61i
183    o autodiff:
184      fix autodiff_sore/_restore indices for obcs
185      (spotted by I. Hoteit, M. Mazloff)
186    o pkg/autodiff, pkg/ctrl:
187      Add flag to reduce all tapelev I/O to single-prec.
188      In data.ctrl set
189        doSinglePrecTapelev = .TRUE.
190    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
191      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
192    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
193      real fresh water flux (not yet)
194    o pkg/mdsio & rw:
195     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
196     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
197    o pkg/flt:
198     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
199       init_fixed & ini_varia.
200     - clean-up & simplify linear interpolation S/R:
201       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
202     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
203     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
204     - add vert. coordinate & horiz. indices to output files.
205     - change vertical position in initial condition, from index to depth [m].
206     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
207       (easier to get to a curvilinear grid) ; delX,delY no longer used.
208    o pkg/ggl90: a few modifications:
209     - fix bottom boundary condition, and interpolation of KappaE
210       near top and bottom
211     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
212     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
213     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
214    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
215      (maintain temporary backward compatibility, until next checkpoint)
216    
217    checkpoint61h
218    o pkg/diagnostics with "periodic averaging diagnostics":
219      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
220    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
221    o pkg/obcs: fix loop ranges for balancing code
222    o pkg/flt:
223     - improve criteria for finding which tile owns a float.
224     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
225    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
226      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
227      with ocean biogeo)
228    o pkg/flt:
229     - do some cleaning and fix the restart ;
230     - add output.txt in flt_example/results to get this pkg tested.
231    o genmake2: add an EXTENDED_SRC option and flag.
232       for now, cannot be turned on on command line (only through genmake_local)
233    o pkg/mdsio: read/write vector:
234     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
235     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
236       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
237     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
238      (drop to 4 digits matching for grad). But this test does not look very
239      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
240    
241    checkpoint61g
242    o pkg/flt:
243      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
244       + make OPTIONS file more standard.
245      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
246      - fix _BYTESWAPIO CPP-Flag
247      - standard reading of file-parameter "data.flt"
248      - fix argument list of S/R FLT_RESTART
249      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
250    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
251    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
252      a still unfixed compiler/optimization bug
253    
254    checkpoint61f
255    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
256      update results of global_ocean.cs32x15.icedyn test.
257    o move getcon.F from model/src to pkg/fizhi.
258    o pkg/exf: add parameter for extrapolation of temp up to the surface
259       and option to prevent negative evap (in bulk_largeyeager04 only).
260    o Prather Advection scheme: fix tracer conservation for divergent flow
261      (e.g., when using NonLin Free-Surface).
262    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
263    o gmredi (Visbeck-variable-K):
264     - add more parameters to Visbeck-variable-K.
265     - use a 5 points average for dSigmaR in Visbeck-K calculation
266       (more "homogenous": same stencil and same weights as in dSigmaH)
267     - update output of ideal_2D_oce experiment.
268    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
269      (#undef REAL4_IS_SLOW)
270     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
271       coordinate variable
272     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
273       (surface forcing fields), removes some of the functionality
274     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
275     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
276       probably not all: copy _RS surface flux fields to RL field before
277       calling DIAGNOSTICS_FILL
278     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
279       real*4 (CALL EXCH_*_RS) versions.
280     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
281       (generate new output).
282    
283    checkpoint61e
284    o gmredi (Visbeck-variable-K):
285      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
286      - change computation of Visbeck-K where Slope > Smax :        
287        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
288        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
289    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
290      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
291    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
292    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
293      does not become too large (to avoid precision problems in implicit-diffusion
294      solver); update ideal_2D_oce output.
295    o pkg ggl90:
296      - in ggl90_cal.F: compute only one set of visc/diff, used to
297        step forward TKE/T/S/momentum
298      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
299        have Prandlt =1)
300    o gmredi (fm07):
301      - add lower limit on Transition layer thickness + lower limit on 1/lambda
302      - allow to set few more params from data.gmredi
303    o pkg ggl90:
304          - add missing sqrt(2) factor in computation of mixing length
305            scale in ggl90_calc.F
306            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
307    
308    checkpoint61d
309    o adjoint modifs
310      - adapt to new field rhoInSitu
311      - allow to revert from StoreDynVars2D, StoreDynVars3D
312        to individual fields
313        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
314    o store 3-D (in-situ) density in commom block (DYNVARS.h)
315     - save 1 rho computation.
316     - no longer modify T & S inland when using down_slope pkg.
317    o gad_som : allow to switch to SOM advection for T & S without corresponding
318      pickup files (using new S/R: MDS_CHECK4FILE).
319    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
320      (for useSingleCpuIO to work in multi-threaded)
321    o pkg/shelfice:
322     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
323       with SHELFICEtopoFile in data.shelfice
324     - move code for reading ice shelf topography and modifying hFacC into separate
325       subroutines of the shelfice package
326     - separate initialisation of "fixed" and "variable" variables
327     - kTopC is not (yet) replaced by kSurfC, although this is possible
328    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
329    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
330      and rename:
331      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
332      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
333    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
334    
335    checkpoint61c
336    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
337      to add mass source/sink of fluid in the interior (3-D generalisation
338      of oceanic real-fresh water flux).
339    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
340    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
341    o new pkg: down_slope
342      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
343      - presently, modify T & S inland (dwnslp_calc_rho.F).
344        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
345      - implementation for ocean in P-coords not tested.
346      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
347    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
348      (to facilitate conversion of oceanic pkg to p-coordinate).
349    o change FIND_RHO to FIND_RHO_2D :
350      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
351    o new pkg: cheapaml
352    
353    checkpoint61b
354    o exch2:
355      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
356      - no longer depend on the order sequence (N,S,E,W).
357      - 3rd exchange no longer needed (tested with 24 tiles).
358      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
359      - exch_UV_A-grid readily available (but not yet tested).
360      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
361      (both are no longer needed) in exch_uv: no effect in forward run; but
362       get truncation error differences with adjoint exch.
363    o exch2:
364     - change index-bounds storage (moved from target to local tile,
365       more intuitive this way) ; rename/remove some variables.
366     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
367    
368    checkpoint61a
369    o exch2/matlab-topology-generator:
370      fix bug in index bounds for N-S internal exchange (hard to tell if this
371      had any effect on the solution).
372    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
373      is exceeded
374    o testreport: modify syntax of awk, so that it works also with
375      awk, and not only with nawk and gawk
376    
377    checkpoint61
378    o autodiff
379      Change default for TAF usage by removing argument '-nonew_arg'
380      This changes TAF subroutine argument list (ordering of active var.)
381      Omission of this flag leads to incompatibility w.r.t. TAMC
382      To restore TAMC-compatibility, need following modifs:
383      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
384      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
385      Tested TAF version is 1.9.22
386      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
387    
388    checkpoint60
389    --->>> This is the last checkpoint for which generating the adjoint
390    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
391    --->>> by default.
392    --->>> Future checkpoints will ommit this flag by default.
393    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
394    o pkg/grdchk: Add gradient check to etan0 perturbations.
395    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
396    o pkg/autodiff: more flexibility in zeroadj.
397      model/src: modifying do_oceanic_phys.F accordingly.
398    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
399    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
400      special setup of gmredi for which the adjoint is stable
401      enough for parameter optimization.
402    o bridging the gap between eddy stress and GM.
403      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
404          along with a change in CPP option (now ALLOW_EDDYPSI).
405      -> when using GM w/ GM_AdvForm:
406          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
407          is applied either in the tracer Eq. or in momentum Eq.
408          depending on data.gmredi (intro. GM_InMomAsStress).
409      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
410      The key modifications are in model/src/taueddy_external_forcing.F
411      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
412    
413    checkpoint59r
414    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
415      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
416      fix option to read coriolis(@ cell-corner) from files with CS-grid.
417    o pkg/mnc: add some attributes to standard 1D-coordinate variables
418    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
419      mass points, when using mnc for output
420      - add runtime parameter (missing_value, missing_value_int) to override
421        default (which is the value of getcon('UNDEF'))
422    o pkg/mnc: prepare mnc for the actual use of missing values with the
423      diagnostics package: small fix in mnc_cw_readwrite.template and more
424      initialisation of never used fields
425      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
426      versions
427    o pkg/thsice/thsice_ini_vars.F added default initial values so that
428      thermodynamics sea ice solver does not blow up when some initial fields
429      are missing.
430    o move from external_forcing_surf.F to ini_forcing.F
431      the p-coord. hack consisting in using pLoad to set phi0surf ;
432      update output of tutorial_global_oce_in_p (affected @ truncation level).
433    o Freshen up a bit hs94.1x64x5, notably:
434      remove rotationPeriod and tRef=5*0. (adjoint only), and add
435      exactConserv=.TRUE.
436    o pkg/generic_advdiff:
437      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
438      applies to files where Temperature & Salinity 2nd Order moments are used.
439    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
440      this uses a dynamically allocated internal state data structure
441      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
442      and requires a fortran 90 compiler
443    
444    checkpoint59q
445    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
446       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
447    o Refresh tutorial_global_oce_biogeo, notably:
448      - change bathymetry (put back seamounts in ACC, use hFacs)
449      - change EOS (POLY3 --> JMD95Z)
450      - use Bryan-Lewis vertical diffusivity
451      - use multidimensional advection
452      - remove old virtual virtual in dic pkg, now done through ptracer pkg
453      - change a couple of parameters in dic pkg
454    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
455    o pkg/obcs: change default to OBCSfixTopo = .true.,
456      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
457      - replace "debugMode" with "debugLevel .GE. debLevB"
458    o implementation of TAF directives for gchem,cfc,dic
459    o remove "exp5" (replaced by tutorial_deep_convection).
460    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
461      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
462      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
463      --> changes results in exp4, seaice_obcs
464    o tutorial_deep_convection :
465      update the set-up and increase resolution and domain size ; start
466      from pseudo initial conditions = output at t=120mn in order to see
467      something happening when running testreport.
468    o pkg/seaice: add os7mp as an advection scheme
469                  add check for advection schemes
470                  add a flag for restoring T and S underneath sea ice
471    o pkg/my82: add netcdf-support and diagnostics
472    o thsice pkg:
473      - Now hsMax limits snow height by turning it into ice following
474        flooding scheme (and now conserving energy)
475      - Slight rewriting of the formula in thsice_calc_thick.F
476      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
477      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
478    
479    checkpoint59p
480    o gchem / dic / cfc :
481      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
482      - add new parameter files: "data.dic" & "data.cfc" ;
483      - various re-arrangement in initialisation & header file ;
484      - fix tutorial_global_oce_biogeo for multi-threaded test.
485    o pkg/dic: test for "pickup_dic" file when restarting ;
486      if no pickup-file, can restart with a re-initialised pH (same as it did
487      before) providing pickupStrictlyMatch is set to False.
488    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
489      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
490    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
491      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
492    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
493     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
494       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
495    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
496       scheme to use for vorticty-term ;
497     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
498       (with default selectVortScheme, return to original discretisation)
499     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
500    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
501    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
502      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
503      also fix diagnostics VISCAHW & VISCA4W.
504    
505    checkpoint59o
506    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
507    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
508      move a few statemens out the main loop into separate loops
509    o pkg/shelfice:
510      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
511        (kg/m^2/s), does not break tests, because in verification/isomip,
512        rhoConstFresh=rhoConst (by accident)
513      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
514      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
515        new file model/src/seawater.F, so that they are available for all pkgs.
516      - convert potential temperature into in-situ temperature. This changes the
517        isomip tests => update tests
518    o add a flag writePickupAtEnd (default=true) to be able to suppress
519      writing a pickup at the last timestep
520    o tools/mpack-1.6 :
521      - disable automake (not working) and autoconf (not needed).
522      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
523        also cleaner with much less compilation warnings.
524    o pkg/profiles:
525      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
526      (for "less than 32 characters name" compiler requirement)
527    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
528      conditions that have a different sampling frequency than S/T/U/V obcs
529    o pkg/diagnostics (stats-diags):
530      - fix global Min/Max in case 1 processor get only empty tiles
531    o genmake2: replace (4 times)
532         make genmake_tc_1.o >> genmake_warnings 2>&1
533      with
534         COMM="$CC $CFLAGS -c genmake_tc_1.c"
535         echo $COMM >> genmake_warnings
536         $COMM >> genmake_warnings 2>&1
537      to make genmake2 always see the value of CC as specified in the optfile.
538    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
539      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
540      - modify verification advect_cs test to test SOM-advection on CS-grid.
541    o pkg/ctrl:
542      - Rewrite of ctrl_map_ini_ecco.F,
543        introducing a generic routine (ctrl_map_ini_gen.F).
544      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
545    
546    checkpoint59n
547    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
548      number in dedicate array "hdiag":
549      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
550        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
551      - many small changes (integer format) for large number of diagnostics
552      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
553        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
554    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
555      usingSphericalGrid, this allows to define the rotated grid coordinates
556      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
557      geographical coordinates according to the inverse of the rotation defined
558      by the Euler angles, so that Coriolis parameter and online-interpolation by
559      exf works with the geographical coordinates on XC/YC/XG/YG.
560      Naturally, this feature does not work with all packages, so some
561      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
562      profiles), because there the coordinates are assumed to be regular
563      spherical grid coordinates.
564    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
565      - introduce isopycnal diffusion coefficient control.
566    o tools/adjoint_options:
567      - additional control vector components.
568    o pkg/mnc: have mnc create marginally meaning full coordinate variables
569      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
570    o pkg/mypackage:
571      - add example of read/write pickup for state-var ;
572      - add entry points to the main code for state-vars diags & write-pickup.
573    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
574      transitions for useExfYearlyFields
575      - add new subroutine that determines the file to read from for
576        use*YearlyFields = .TRUE. and .FALSE.
577      - add a verification experiment to global_with_exf that tests
578        useExfYearlyFields with USE_EXF_INTERPOLATION defined
579    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
580      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
581      subroutines (which could be generated from a template, because they are
582      almost identical), for now they are included in obcs_prescribe_read.F for
583      simplicity
584    o pkg/exf:
585      - add a little more diagnostic to exf_interp_read (in analogy to
586        mds_read_field, can be turned off with debugLevel < debugLevA=1)
587      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
588        ugly but fast by unrolling short inner loops, inserting a unroll=8
589        directive in routine lagran, and splitting a loop and making do while the
590        outermost loop (the latter requires the intoduction of index arrays)
591    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
592    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
593      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
594    o verification/seaice_obcs: updated for restart test and latest options
595    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
596      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
597      for now this is only available for the C-grid code and also within
598      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
599    
600    checkpoint59m
601    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
602      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
603    o gad_som : fix flux output (& diagnostics) to have same units as other  
604      advection scheme fluxes (was previously multiplied by deltaT).  
605    o added verification/seaice_obcs both to test seaice open boundaries
606      and to provide an example matlab scrpt for generating them
607    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
608    o pkg/salt_plume: clean up salt_plume_frac.F to
609      remove redundancy in PlumeMethod 1 and 4
610    o pkg/kpp: added saltplume diagnostics
611    o pkg/obcs and pkg/seaice:
612      - do not set uice and vice to zero when OB*icefile are unspecified
613      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
614      - moved seaice tracer obcs after call to seaice_growth
615    o pkg/salt_plume: added various options for salt plume depth
616      criterion and for vertical distribution of the salt
617    
618    checkpoint59l
619    o pkg/ptracers: new version of ptracers pickup:
620      read meta file and write only fields which are needed to restart.
621      ( same logic as main pickup file ; also using pickupStrictlyMatch )
622    o pkg/seaice:
623      - add timescale for melting due to warm mixed layer as a means of
624        setting SEAICE_availHeatFrac more conveniently
625      - add a CPP-flag/runtime parameter check for flooding algorithm
626      - reformulated availHeat in seaice_growth.F to be independent of AREA
627    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
628      unit changes
629    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
630    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
631      SX vector computer.
632    o pkg/seaice:
633      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
634        seaice forcing fields can now be read only through pkg/exf
635      - removed some unused halos
636    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
637    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
638      or U/VICE from U/VWIND before computing U/VSTRESS
639    
640    checkpoint59k
641    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
642      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
643    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
644      all experiments pass when compile with un-initialised var. checking option.
645    o added pkg/salt_plume
646    o script to test restart (for now, in MITgcm_contrib/jmc_script)
647    o pkg/seaice: new read/write pickup version.
648      read meta file and write only fields which are needed to restart.
649      ( same logic as main pickup file ; also using pickupStrictlyMatch )
650    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
651    o lab_sea.hb87: modify the domain & update output.hb87.txt :
652      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
653      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
654      process. Fixed here by closing the domain at the Northern boundary.
655    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
656    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
657      a set of consecutive levels in/from a 3-D array.
658    o pkg/ptracers:
659      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
660      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
661    
662    checkpoint59j
663    o in pkgs: dic, obcs, offline, rbcs:
664      standard way to compute coeff. for time interpolation between 2 time reccords
665      which retains full precision (& make results less dependent on compiler).
666      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
667    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
668      packages instead of reading ice cover and wind speed separately
669    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
670     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
671      to allow to compile customized code before the update)
672    o cleaning-up:
673      - fix CPP instruction syntax in pkg/obcs
674      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
675        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
676      - fix some threads issue in IO parts.
677    o pkg/dic:
678      - add tons of "_d 0" (--> much better testreports !)
679       and then update outputs of tutorial_global_oce_biogeo
680    o pkg/mom_fluxform:
681      add a special version of momentum advection intended to conserve momentum
682      next to a bathymetry step or a coastline edge. (default = off = #undef)
683    o new read/write pickup version:
684      - for now, only implemented for main (mdsio) pickup file.
685      - write out only what is needed to restart; merge pickup_nh , pickup_ph
686        and main pickup together.
687      - read meta file; read only what is needed to restart; stop if a field
688        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
689        if it make sense (even if the restart is not perfect).
690      - if no meta file, assume that pickup to read corresponds exactly to
691        a pickup that would currently be written.
692      - read pickup written in the old format (until checkpoint59i) if it
693        recognizes an old meta file (no field-list).
694      - add a meta file in exp. which starts from a pickup: 2 cases:
695        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
696         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
697        b) a meta file describing the content of the associated pickup file
698         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
699    o pkg/mdsio & pkg/rw:
700      - new routine to read a meta file ; new set of routine to read
701        Multiple-fields file (with meta file).
702    o added open boundary conditions capability for seaice
703        HSNOW, HSALT, UICE, and VICE
704    
705    checkpoint59i
706    o adjoint:
707      * fix multiDimAdvection adjoint
708        (partial recomputation problem by TAF for fVerT(:,:,kDown)
709        and comlev1 size definition (maxpass vs. max. number of tracers)
710      * verification/global_ocean.90x45x15 adjoint now tests
711        NLFS and multiDimAdvection using DST3 (=30)
712      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
713    o pkg/kpp: add "_d 0" to real constant (if missing);
714      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
715      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
716    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
717      for internal parameters related to restart process (formerly from PARAMS.h)
718      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
719    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
720      as argument. (only atm2d & obcs write_pickup have not yet been updated)
721    o pkg/monitor:
722      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
723      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
724      - account for deep Atmosphere factor and density factor (anelastic)
725    o added open boundary conditions capability for seaice HEFF and AREA
726    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
727      thermodynamics
728      - requires a little reorganization, which affects the testreport results
729        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
730        so that now the conservative form is tested
731      - add a few comments
732    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
733    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
734    o add new diagnostics to seaice: advective, diffusive fluxes (only for
735      multidim-advection, for scheme 2 they are not filled) and transports,
736      thermodynamic growth rates
737    o change units of EmPmR (inside the code, + within coupling interface)
738      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
739      Affects results @ truncation level (cg2d match) and update output of
740       experiments: lab_sea(6), global_ocean.90x40x15(10),
741      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
742      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
743      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
744      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
745    
746    checkpoint59h
747    o pkg/exf:
748      - improve vectorization by moving if-statement out of loops in
749        exf_mapfields, exf_radiation
750      - exf_bulkformulae.F: introduce 2D fields and vectorize code
751    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
752    o testreport:
753      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
754        monitor & update offline_exf_seaice exp. output.
755      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
756    o pkg/seaice:
757      - bug fix in the evp solver: boundary conditions were affected be
758        masking of zMax/zMin (changes results)
759      - minor bug fix in boundary conditions in seaice_calc_strainrates
760        (changes results for no_slip)
761      - seaice_lsr.F: make interpolation of eta dependent on boundaries
762      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
763      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
764        stress formulation and no-slip boundary conditions
765    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
766      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
767    o pkg/seaice: a first HSALT time stepping equation has been checked in
768    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
769      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
770      without requiring DO-IF statements
771    o pkg/thsice:
772      use continuous power-law function for partition of energy between lateral
773      melting/freezing and thinning/thickening ; old code using step function
774      still available with #undef THSICE_FRACEN_POWERLAW
775      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
776    o testreport: change AD testing : check against results/output_adm.txt
777      using same scripts as for forward test.
778    
779    checkpoint59g
780    o adjoint testing: in preparation for changing testreport:
781      - output format: cost and grad written on separated lines
782      - ad output results in directory "results" (instead of "results_ad")
783    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
784    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
785    o pkg/ecco: allow user defined cost function contributions
786    o testreport:
787      Allow to choose (per experiment) the list of tested output variables
788       and the main variable (used to issue a pass/FAIL ) ;
789      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
790      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
791      Also modify printing of summary:
792       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
793       b) echo the list of tested variables in the individual summary.txt of
794          each experiment.
795    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
796      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
797      (but still depend on the tile decompostion of the domain).
798    o pkg/seaice: change a discretization detail to make the B-grid code
799      "more symmetric". This change is likely to remove all "ridges/leads" that
800      where quasi-aligned with the grid in B-grid solutions. It may also be
801      the solution to the stress coupling issues with the B-grid.
802    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
803      remove .cvsignore from input dir. (since testreport no longer run here).
804    o pkg/thsice:
805     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
806     - fix reshaping of sea-ice just after advection:
807       melt all the ice only if ice-volume is too small.
808     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
809       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
810     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
811    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
812      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
813    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
814      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
815      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
816      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
817      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
818      -> update output.txt
819    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
820     this affects truncation error: -> update output.txt of exp:
821      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
822      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
823    
824    checkpoint59f
825    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
826    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
827      a bounded range (in forward mode)
828    o pkg/ecco, ctrl, autodiff and mom_common:
829     internal parameter controls, completements of implementations
830    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
831    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
832      (not seem any difference in testing results).
833    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
834       at face corners.
835    o pkg/generic_advdiff:
836     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
837      loop range indices for computing vertical advection tendency
838      and do the calculation in the interior only (no overlap) ;
839      for now, only implemented for SOM advection (to save CPU time).
840     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
841    o exch2 adjoint
842      First set of changes:
843      - add exch2 hand-written adjoint templates
844      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
845        This will require cleanup in pkg/autodiff/*.F
846        (changed routines currently kept separate in verif. code/)
847      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
848        that used to hide exch2 or cubed-sphere specific code
849        (commented via 'cph-exch2')
850    o pkg/seaice
851      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
852    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
853       output of global_ocean.cs32x15.thsice .
854    
855    checkpoint59e
856    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
857      for B-grid vector (not yet tested) and C-grid vector (<- only used
858      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
859    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
860      (#ifdef ALLOW_SALT_PLUME)
861    o gather_2d/scatter_2d: removed halo regions
862    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
863      scheme and the corresponding test case (under front_relax dir). For now,
864      only available with Skew-flux form and not yet tested in realistic set-up.
865      adjoint: store directives updated, but gradient checks deteriorated,
866      so maybe GM/Redi adjoint is now broken.
867    o seaice adjoint
868      * add AREA, HEFF, HSNOW as control variable
869        (should not change lab_sea results)
870      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
871    o pkg/seaice:
872      * added computation of saltFlux in seaice_growth;
873        For time being, sea ice salinity is assumed constant
874        contribution of snow flooding to freshening of sea ice is neglected.
875        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
876        defaults to 0.0 in order to maintain backward compatibility.
877        Typical values for SEAICE_salinity are 4 to 10 g/kg.
878      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
879      * added SEAICE_availHeatFrac, which specifies fraction of surface level
880        heat content used to melt or grow ice
881      * commented out cap of HICE: it helps keep ice thinner
882      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
883      * applied OBCS T/S mask to HEFFM sea ice mask
884    
885    checkpoint59d
886    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
887     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
888     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
889    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
890     and change default value of parameter "GM_Small_Number";
891     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
892       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
893       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
894    o pkg/ecco: cost function when applying pkg/smooth to controls
895    o pkg/ctrl: add forcingPrecond run time parameter
896    o pkg/seaice:
897     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
898     - fix bug in metric terms of u-equation in LSR solver (implicit part),
899       changes verification/lab_sea
900     - rearrange implicit part of u-equation in LSR solver to make it easier to
901       read, understand, and debug. This causes changes at the truncation level.
902     - fix (serious) bug in the boundary conditions (sign error in the implicit
903       part) of the LSR solver. Changes all LSR results.
904     - fixed problem with HSNOW initialization to avoid thick snow when AREA
905       is initilized with small values - does not change lab_sea results.
906     - added HsnowFile initialization capability
907    o pkg/smooth: addition to model/src and pkg/ctrl so allow
908     initialization of pkg/smooth and application to control vector
909    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
910    o dependencies: pkg/profiles requires pkg/cal
911    o pkg/profiles:
912     - added option ALLOW_PROFILES_GENERICGRID
913         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
914         that interpolation information (grid points and coefficients) is provided
915         within the netcdf input files.
916         -> sample matlab scripts can be found in MITgcm_contrib/gael
917         that allow you to prepare netcdf input files.
918     - also modified: cleaner include statements, cleaner error print statements,
919       cleaner stops when error, and more tests of the netcdf input files consistency.
920    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
921    o pkg/seaice:
922     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
923       requires a new routine: seaice_diagnostics_fill.F
924     - make sure that seaice does not move if not forced (pressure replacement
925       method, Hibler and Ip, 1995), changes results
926     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
927     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
928       It is turned off by default (=-1.), because it changes the results.
929     - make it possible to read AREA from a file, too.
930    
931    checkpoint59c
932    o add S/R and diagnostics for oceanic mixed-layer depth
933    o move GMRedi call after all vertical mixing schemes (including KPP)
934    o pkg/thsice:
935     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
936      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
937    o pkg/obcs:
938     - bug fix for balance code
939    o pkg/seaice:
940      - allow values of SEAICE_elasticParm > 1
941      - add new parameter SEAICE_evpTauRelax as an alternative
942        to SEAICE_elasticParm
943      - make lsr boundary conditions free slip (by default), changes result
944      - add code for no slip boundary conditions for lsr
945      - set minimum of zeta to zero (and not 4e8) (changes results)
946      - add a cap on AREA after advecting AREA if seaice_growth is not called
947    o change calculation of Visbeck K:
948      - no longer depend on tapering scheme; instead, compute slope (limited
949        by GM_maxSlope). this is equivalent to what was comuted before with
950        clipping or linear tappering.
951      - fix vertical averaging (wrong by 1/2 level)
952      - leave the old version (but will not be maintained) within
953        #ifdef OLD_VISBECK_CALC / #endif
954      - update output of exp. ideal_2D_oce
955    o change error catch in calc_r_star to improve vectorization
956    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
957      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
958    o adjoint:
959      Re-organized adjoint checkpointing according to Matt Mazloff
960      (but with modifs/completions/cleanups)
961      Storing is now bundled into large arrays to optimized I/O
962      (and second step in cleanup of the_main_loop)
963    
964    checkpoint59b
965    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
966      - export/import (between ocean & coupler) fields needed for ocean DIC.
967    o pkg/seaice:
968      - get rid of three more exchanges seaice_calc_viscosities (required
969        different loop boundaries in seaice_lsr and seaice_ocean_stress)
970      - bug fix in seaice_ocean_stress (update of lab_sea required)
971      - reduce loop boundaries to necessary minimum also in seaice_evp
972      - go back to the old way of computing deltaC/Z as the adjoint likes that
973        better
974    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
975      passive tracer to an Age Tracer) + update output.txt
976    o pkg/exf:
977      - implement A-grid / C-grid selection for wind-stress input files.
978      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
979      for now, in exf_bulk_largeyeager04.F only :
980      - change implementation for case where windspeed + 2. components wind-stress
981        are read-in. AND use rhoConstFresh to convert evap.
982    o pkg/seaice:
983      - use correct EXCH_UV for wind-forcing (on A-grid).
984      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
985        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
986    o pkg/exf:
987      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
988      EXF_INTERPOLATION:
989      - merge global_with_exf/code version of exf_interp_read.F
990        to the main code ;
991      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
992        reading the file ; Important: This options needs to be defined to recover
993        previous code.
994        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
995      - no longer loose real*8 precision along the way when using exf_iprec=64.
996    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
997      - change discretisation of evp-solver in order to avoid another exchange
998        (changes lab_sea) and clean up a little
999      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1000        help the adjoint (this also changes the results slightly)
1001      - add a few "_d 0" where they had been missing in seaice_evp.F
1002      - cleaning up: remove unused seaice_calc_rhs.F
1003    o pkg/exf: some cleaning-up:
1004      - change various "constants" into runtime parameters
1005      - cleaned-up Large&Yeager04 routine which should eventually
1006        replace exf_bulkformulae.F (changed names of S/R and CPP)
1007        and merged various ALLOW_ATM_WIND options
1008     only used with thsice pkg (in thsice_get_exf.F):
1009      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1010        which are used when useStabilityFct_overIce=TRUE (= the default)
1011      - change default values of ice & snow emissivity and scale downward LW
1012        by ice & snow emissivity.
1013    o pkg/thsice:
1014     fix few little problems, in thsice_calc_thickn.F:
1015      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1016      - melt only laterally if hIce < hThinIce (as the comments say)
1017      and in thsice_extend.F:
1018      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1019      - start to form ice as soon as the minimum ice-volume is reachable.
1020     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1021      and cpl_aim+ocn
1022    o pkg/kpp
1023     - move computation of surface related input fields to KPP into a new
1024       subroutine kpp_forcing_surf.F
1025     - remove wrong (within bi,bj loops) EXCH calls.
1026     - little cleaning (add argument myThid in last position, cvs header ...)
1027     - for now, fix conservation problem by exchanging KPPviscAz (may not
1028       be the best fix)
1029    o pkg/seaice
1030     - check for inconsistent evp parameter/cpp-flag combination
1031     - remove leftover errIO flat for obsolete name list error handling
1032    o OpenAD
1033     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1034    
1035    checkpoint59a
1036    o pkg/seaice: some parameter clarifications and a little bit of clean up
1037    o pkg/thsice: rename run-time parameters:
1038       himin       -> hIceMin
1039       himin0      -> hThinIce
1040       hihig       -> hThickIce
1041       i0          -> i0swFrac
1042       transCoef   -> bMeltCoef
1043       frac_energy -> fracMelting
1044      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1045       with default values (for now) that do not change the results.
1046      remove old version of thsice vars advection in pkg/seaice.
1047    o in FFIELDS.h:
1048      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1049      - make pLoad & sIceLoad always available (but still only used if
1050         ATMOSPHERIC_LOADING is #define).
1051    o pkg/kpp: replaced _KPP_RL with _RL
1052    o bug fixes for vertical diffusivity computations when both KPP and
1053        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1054        are no longer updating the vertical diffusivity array
1055        (passed as argument) but are (re-) setting those arrays.
1056    o pkg/seaice: fix bug in evp solver, while doing that
1057      - change (improve?) discretization of stress computations for both
1058        cgrid-lsr and evp solver
1059      - add a new routine to compute strain rates
1060      - the above changes lab_sea results
1061      - add no slip conditions for evp solver (off by default), lsr-version
1062        may follow
1063      - fix exchange for shear at Z-points (does not change lab_sea)
1064      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1065        (to force the user to pick a time step since there is not "safe" way
1066        of choosing it)
1067      - add principal stress diagnostics
1068      - rearrange fields for evp a little to avoid having to call a: too many
1069        exchanges and b: exchanges for stress trensor components which we do
1070        not have.
1071      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1072        of evp, complete rewrite for lsr case (latter is does not yet work
1073        in all cases)
1074    o pkg/kpp: add code to have mixing in shelf ice caverns
1075      - add myThid to all kpp routines (long overdue)
1076    
1077    checkpoint59
1078    o pkg/exf:
1079      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1080        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1081      - move exf header files from lower_case.h to UPPER_CASE.h ;
1082        add missing cvs Header & Name
1083      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1084      - add namelist param. selectStressGridPosition, exf_monFreq
1085      - retire many _CLIM routines, and remove data.exf_clim
1086        + params moved to data.exf
1087        + climsst, climsss now handled by exf_set_gen, i.e.
1088          climss?period=0 refers to constant field,
1089          climss?period=-12 to monthly forcing
1090      - split up namelists in data.exf
1091    o pkg/seaice:
1092      - remove seaice_exch and seaice_exch_uv
1093      - remove superfluous exchange of theta
1094      - add myThid to seaice_budget_ocean/ice
1095      - add new interface for atmospheric wind forcing (C-grid only)
1096        + new routine
1097        + two new field (taux, tauy for stress over ice)
1098        + removed one global field (DAIRN) for C-grid case only
1099    o pkg/thsise
1100      - 2nd set of modifs for thsice adjoint in conjunction with exf
1101    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1102    
1103    checkpoint58y_post
1104    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1105      vertical diffusivity, similar to that in MOM4; turned on using
1106      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1107      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1108    o Added capability for 3D specification of background vertical diffusion
1109      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1110      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1111      "data" file that contains the 3D vertical diffusivity coefficients.
1112    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1113      - add code within pkg thsice to advect & diffuse sea-ice fields
1114      similar to (and will replace) what has been added in  seaice_advdiff.F,
1115      but: - conserving Mass, Heat & Salt.
1116           - better when using non-linear advection scheme (not yet fully tested)
1117           - can also be used in atmospheric set-up (for now, only the diffusion).
1118    
1119    checkpoint58x_post
1120    o IO option for global-file compact format:
1121      - add options when generating topology (utils/exch2/matlab-topology-generator)
1122      - add I/O capability (pkg/mdsio).
1123      - adapt utils/matlab/rdmds.m to read this format.
1124      for now long-line format not yet supported by pkg/mdsio (& exch2).
1125    o shelfice: add a few diagnostics
1126    
1127    checkpoint58w_post
1128    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1129      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1130      (and replace horiVertRatio in NH code).
1131      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1132                         and tutorial_plume_on_slope (sensitive to truncation)
1133    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1134      directly to drive seaice model (C-grid only)
1135    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1136     - reintroduce computation of wind from stress,
1137     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1138       mass points to avoid tau = 0
1139     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1140    o rdmnc.m: make it work with "global" files created with gluemnc
1141    o rdmnc.m : some improvements in dealing with singleton dimension
1142      (tested on all testreport mnc output files).
1143    o genmake2: disable pkg/profiles if netcdf test fails.
1144    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1145    o move call to cal_readparms up to make calendar parameters/variable available
1146      to all packages
1147    
1148    checkpoint58v_post
1149    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1150      useDynP_inEos_Zc tested.
1151    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1152    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1153      and portions thereof.  See read_cs.txt for description and examples.
1154    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1155      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1156      following the great-circle arc between those 2 points.
1157    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1158      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1159    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1160     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1161     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1162     - still needs work (not working with some options ; efficiency to improve)
1163       and serious testing.
1164     - use this scheme for temperature & salinity in 2 advection test exp.:
1165       advect_xy & advect_xz, respectively.
1166    
1167    checkpoint58u_post
1168    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1169    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1170    o testreport: add option "-skipdir" to skip some test.
1171    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1172      momentum calculation.
1173    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1174    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1175      remove checkpoint.F and the_correction_step.F (no longer used);
1176      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1177    o add option (linFSConserveTr) to correct for tracer source/sink due to
1178      Linear Free surface
1179    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1180    o pkg/thsice: fix reading mnc-pickups
1181    
1182    checkpoint58t_post
1183    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1184    o pkg/mdsio:
1185     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1186       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1187       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1188     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1189     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1190       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1191     - new S/R (to replace MDSWRITEMETA), which allows to write more
1192       informations (variable names, time ...) to meta files.
1193     - modify rdmds.m to give back the meta file content.
1194    o pkg/diagnostics: change vertical interpolation to be safer, and more
1195       flexible (define p-levels to interpolate to in data.diagnostics);
1196      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1197       diagnostic pointer.
1198    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1199    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1200    o fix multi-category seaice:
1201     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1202       SEAICE_MULTICATEGORY
1203     - fix short wave heat flux
1204    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1205       and allow to use EVP solver. Change forward lab_sea: test both EVP
1206       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1207    o Initial check-in of lab_sea adjoint
1208      (very similar to natl_box_adjoint/code_seaice)
1209      * used C-grid and EVP solver
1210      * used KPP, GM/Redi
1211      * uses inAdExact=.TRUE.
1212      * gradient checks fail for both ADM and TLM
1213        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1214        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1215        issue is related to forward mismatch between g77 an ifort
1216    o pkg/seaice: overhaul of thermodynamics
1217     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1218     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1219     - move a few global fields out of SEAICE.h into seaice_growth.F and
1220       make them 2D (FICE/QNETO/ ...)
1221     - remove FO (it is the same as QNETO)
1222     - introduce a few local fields to avoid modifying external fields such
1223       as atemp, etc.
1224    
1225    checkpoint58s_post
1226    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1227      changed exf_set_gen.F so that
1228        genperiod=0 means input file is one time-constant field and
1229        genperiod=-12 means input file contains 12 monthly means
1230    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1231      this affects truncation error ; generate new output file for exp. which
1232      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1233        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1234        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1235        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1236        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1237        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1238    o start implementation of deep-atmosphere and anelastic formulation
1239    o verification: remove 2nd copy of input files and use script "prepare_run"
1240      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1241    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1242    o profiles: fix for multithreaded case
1243    
1244    o diagnostics: rename few diags:
1245      s/'PRESSURE'/'RCENTER '/g
1246      s/'TICE    '/'oceFreez'/g
1247      s/'TAUX    '/'oceTAUX '/g
1248      s/'TAUY    '/'oceTAUY '/g
1249      s/'SWFLUX  '/'oceQsw  '/g
1250      s/DIFx/DFxE/g
1251      s/DIFy/DFyE/g
1252      and add few ocean-forcing diagnostics:
1253      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1254    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1255      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1256      as actual snow thickness.  It now refers everywhere to effective snow
1257      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1258    
1259    checkpoint58r_post
1260    o modifications to pkg/seaice/growth.F, which change results of
1261      lab_sea experiment: fixes pertain to melting snow over open water, to
1262      masking EVAP under sea ice, and to using the correct AREA variable for
1263      computations of EVAP, PRECIP, HSNOW, and GHEFF
1264    o add ability to read bathy, salt, and theta using MNC (off by def)
1265    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1266      both are turned off by default and do no change any results
1267    o seaice advection with pkg/thsice: a step toward the use of non-linear
1268      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1269    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1270      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1271      in natl_box (affects results @ truncation level: update output.txt)
1272    o multi-threading and IO:
1273      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1274      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1275        (needed to work with SingleCpuIO): tested in all verif. exp.
1276    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1277      affects the results (but none of the verification test uses this scheme).
1278    o Adding some pkg/diagnostics capability to pkg/seaice
1279      (will certainly be subject to changes)
1280    o ctrl: adding new control variables:
1281      lwflux, lwdown, evap, snowprecip, apressure, runoff
1282    
1283    checkpoint58q_post
1284    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1285      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1286      high_res_cube configuration by 4% on Columbia.
1287    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1288      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1289      dynamical allocation (seems to work in multi-threaded).
1290    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1291      single CPU io) so that TAF does not have to see EESUPPORT.h
1292    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1293    
1294    checkpoint58p_post
1295    o obcs: stop if obcs is used with useCDscheme = .true.
1296    o shelfice:
1297     - fix a sign error so that no slip at shelfice interface works
1298     - remove stop for combination non-hydrostatic code and shelfice. That does
1299       not mean, that the results are correct, but at least they are numerically
1300       stable
1301    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1302    o added adjoint exch routined for all exch*3d* routines
1303      and updated flow directives
1304    
1305    checkpoint58o_post
1306    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1307      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1308    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1309      and clean-up reading/writing of pickup files.
1310    o fix local version of read/write pickup (NH part) in rotating_tank/code
1311    o simplify EXCH interface:
1312     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1313     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1314    o added the regrid package
1315    o shelfice:
1316     - add a simple boundary layer scheme to reduce noise
1317     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1318    
1319    checkpoint58n_post
1320    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1321       local variable (not in common block).
1322    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1323      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1324      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1325        to work with SingleCpuIO.
1326    o add "_d 0" to real constant of pkg/cfc subroutines ;
1327       update exp. cfc_exemple & tutorial_cfc_offline output files.
1328    o multi-threading and IO:
1329      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1330        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1331      - barrier before and after reading.
1332      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1333      - avoid using MDS_WRITELOCAL for LAND pkg output.
1334      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1335        common-block variables ; Allows multi-threading with master-thread IO.
1336    o change default MAX_NO_THREADS from 32 to 4 ;
1337      and stop cleanly when MAX_NO_THREADS is too small.
1338    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1339    
1340    checkpoint58m_post
1341    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1342       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1343    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1344       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1345       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1346    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1347        add MITgcm_tutorials (= code + all the tutorials)
1348    o ecco, option to compute cost for total ssh (mean+anom)
1349    o consistent with addition of ptracer and ssh in pkg/profiles
1350    o profiles: adding ptracer and ssh
1351    o testreport: change multi-test output-file name
1352      (from output.txt.{name} to output.{name}.txt)
1353    o profiles: now ok for mutli-tiles case
1354    o seaice: add 4 parameters for different advection schemes for area,
1355      (effective) seaice thickness, enthalphy, and snow height. Their default
1356      is the standard parameter SEAICEadvScheme
1357    o calc_gw:
1358     - add cosFacU in zonal viscous flux (harmonic.visc.).
1359     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1360       of tutorial_plume_on_slope.
1361    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1362    o calc_gw: true flux-form, account for horizontal grid spacing.
1363      update rotating_tank results, but not plume_on_slope (affected at
1364      truncation level, 11 digits).
1365    
1366    checkpoint58l_post
1367    o calc_gw:
1368     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1369     - remove side-drag for now (need to fix it); update plume_on_slope results.
1370     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1371    o commit code to make SST/SSS weights spatially variable
1372      (based on either variable in-situ or variable initial T/S weights)
1373    o pkg/ecco:
1374      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1375        now based on horizontally varying weights wthetaLev, wsaltLev
1376      * cost_averagesflags now returns year indices in addition to day, month
1377      * sflux balance is performed on annual basis
1378        (sflxumm, sfluxmm2, bal_sfluxmm)
1379      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1380        including separate counting and multipliers
1381    o pkg/rbcs
1382      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1383    
1384    checkpoint58k_post
1385    o testreport:
1386     - always build in dir. "build" (if not there, mkdir build instead of building
1387       & running in input)
1388     - run in dir run (if it exists), in build otherwise.
1389     - call prepare_run (if input/prepare_run exists)
1390     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1391    o pkg/exf modifications to interpolation and rotation routines for more
1392       reasonable treatment of North Pole singularity: for tracers North Pole
1393       value is set to northernmost zonal-mean value, for zonal velocity it is
1394       set to zero, and for meridional velocity it is set to northernmost value.
1395    o pkg/exf/exf_check_range.F
1396     - add tile index to diagnostics and move stop statement to the very
1397       end of the routine.
1398    o pkg/diagnostics: (diagnostics_main_init.F)
1399      define title of isomorphic variables according to the current config.
1400    o pkg/thsice with pkg/seaice dynamics:
1401    - fix domain of computation (interior only, required for exf) and do exchanges
1402    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1403    o towards a standard way of dealing with multi-threading in MONITOR
1404      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1405    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1406       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1407    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1408    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1409    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1410       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1411    o tracer advection:
1412     - clean-up and simplify calc_common_factors.F
1413     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1414       advection subroutine (but still not used within DST advection S/R)
1415    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1416    
1417    checkpoint58j_post
1418    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1419      from file (collects calls previously in FORWARD_STEP)
1420    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1421    o adjoint store dir. adjusted accordingly
1422    o genmake2
1423      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1424    
1425    checkpoint58i_post
1426    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1427      on wind stress (SEAICEstressFactor defaults to 1.)
1428    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1429      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1430    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1431      on CS-grid: no longer loosing mass.
1432    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1433    o pkg/ggl90: fix sloppy output and fix a bug
1434    o pkg/seaice: added SEAICEuseEVPpickup parameter
1435      - Set to false in order to start EVP solver with
1436        non-EVP pickup files when using SEAICEuseEVP
1437      - fix sign error in diffusion in seaice_calc_rhs
1438    
1439    checkpoint58h_post
1440    * Modifications for bottom topography control
1441      o replace hFacC by _hFacC at various places
1442      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1443      o add non-self-adjoint cg2d_nsa
1444      o update autodiff support routines
1445      o re-initialise hfac after ctrl_depth_ini
1446      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1447    * Adding verification for 5x5 box (4-layer) bottom topography control
1448    
1449    checkpoint58g_post
1450    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1451       used for mean seasonal cycle, mean diurnal cycle); add an example
1452       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1453    o pkg/ggl90:
1454      - add parameter (minimum surface kinetic energy)
1455      - fix bug (avoiding division by zero)
1456    o couple pkg/thsice to pkg/seaice:
1457      - modify advection in seaice to accomodate new scalar fields to be advected
1458      - only muliDimAdection scheme work with seaice/thsice
1459      - mapping of thsice-variables to seaice-variables, back and forth
1460      - does not break the verification experiments, but does not give the
1461        desired results either
1462    o pkg/seaice
1463      - make (default) second order advection a bit less confusing?
1464    
1465    checkpoint58f_post
1466    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1467      to pkg/seaice):
1468      - new routines thsice_map_exf and thsice_get_exf provide the interface
1469      - add an additional formal parameter to thsice_solve4temp
1470    o pkg/exf:
1471      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1472      - correct Stefan-Boltzmann constant
1473      - new parameter for longwave surface emittance
1474      - separate some stuff from exf_bulkformulae into new routines  
1475        exf_radiation, exf_wind
1476      - add new parameters and constants: longwave emissivity for ocean, ice
1477        and snow, evaporation parameters over ice
1478      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1479        either wind from stress or stress from wind
1480    o pkg/thSIce:
1481    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1482    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1483       and THSICE_CALC_THICKN
1484    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1485    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1486      to make debugging easier.
1487    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1488    o pkg/bulk_force:
1489      - clean-up comments and parameters ;
1490      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1491    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1492      generate new output for test-experiment: aim.5l_cs.thSI
1493    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1494      testreport accordingly
1495    
1496    checkpoint58e_post
1497    o SEAICE_CGRID adjoint done
1498    o R_STAR adjoint implemented.
1499      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1500      * need to sort out init. of h0facc, etc.
1501    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1502      to be able to use it in pure forward.
1503    
1504    checkpoint58d_post
1505    o upgrade simple test-experiment to tutorial example:
1506     step.1: duplicate the experiment and (step.2) will remove the old copy.
1507      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1508      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1509      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1510      tutorial_global_oce_biogeo    <- copy of dic_example
1511      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1512      tutorial_plume_on_slope       <- copy of plume_on_slope
1513      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1514      tutorial_global_oce_optim     <- empty for now (David ?)
1515      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1516     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1517    o correct a sign problem in cost_scat.F
1518    o obcs and ptracers: fix boundary conditions for advections schemes
1519      with larger stencil
1520    o thsice adjoint: start
1521    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1522      completeness
1523    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1524      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1525    o ptracers adjoint:
1526      * avoid extensive recomputatations
1527      * fix missing re-init. of gptr (missed by TAF)
1528    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1529      me to turn off the excessive output to STDOUT that this package produces
1530    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1531      and add those terms in Vector-Invariant formulation.
1532    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1533      if the control period (xx_hfluxperiod etc) is 0
1534    o in profiles pkg, clean routines and fix details
1535    o in ecco pkg, reading ssh data:
1536      fix problem in case the model does not start at iter0=0
1537    o fix mnc-pickup/restart for ptracers
1538    o new package prifiles:
1539      code to compute profile-based cost by Gael Forget
1540      (modifs in ecco, ctrl, autodiff)
1541    o Benign bug fix in initialization (spotted by M. Mazloff) of
1542      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1543    
1544    checkpoint58c_post
1545    o adjoint: finish NLFS adjoint and provide reference output in
1546      verification/global_ocean.90x40x15/results_ad_nlfs
1547    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1548      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1549      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1550      with SEAICE_CGRID defined.
1551    o move calendarDumps from "data" to "data.cal" and clean-up the code
1552      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1553    o add useEXF & useCAL flags (for now, set in hard-coded way)
1554    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1555      (were missing in NH mode, and wrong in quasihydrostatic mode).
1556      waiting for Chris updated version of calc_gw to add those CALLs.
1557    o fix bug in quasihydrostatic S/R ;
1558      add a test for this option: global_ocean.90x40x15.qshyd
1559    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1560      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1561    o add on/off flag useOffLine for package OFFLINE
1562    o seaice:
1563      - modify advection so that it works also on the C-grid
1564      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1565        problem in multi-tile runs with C-grid
1566      - add flags for clipping ice velocities and/or masking solver forcing
1567      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1568        C-grid solver
1569      - added a few comments to seaice_diffusion.F
1570      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1571        are now exclusive)
1572      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1573        required re-ordering the code a little:
1574       + make DAIRN global variable (defined in SEAICE)
1575       + move computation of the viscosities eta and zeta into a new separate
1576         routine (because I need to recompute them in seaice_ocean_stress.F)
1577    
1578    checkpoint58b_post
1579    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1580      update output.txt of exp. aim.5l_cs.thSI
1581    o various mnc cleanups and improvements:
1582      + shrink lookup tables by factor of ~4
1583      + better error reporting when running out of lookup space
1584      + able to handle longer path/file names (up to 500 chars)
1585    o adjoint:
1586      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1587      - TBD: "hidden" mom_vecinv recomp. in dynamics
1588    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1589     (allow to differentiate between forcing components using new integer flags:
1590      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1591     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1592    o ecco
1593      - enable trend removal from SSH anomaly obs.
1594    o adjoint
1595      - a fix for PmEpR when #undef EXACT_CONSERV
1596      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1597      - try to fix "hidden" recomp. in forward_step for NLFS
1598        (NLFS seems broken sometimes after I checked it in)
1599    o seaice:
1600     - add c-grid version of the dynamic solver:
1601       + three new routines that are the c-grid substitute lsr, dynsolver
1602         and ostres
1603       + put a few fields that were local to dynsolver into global common
1604         blocks, so that I can move the computation of stresses etc into
1605         seaice_lsr (saves coding but may break the adjoint).
1606     - replace more hardwired parameters by runtime parameters
1607     - add ice masks that mask the rhs of the implicit solvers where there
1608       is no ice (commented out in seaice_dynsolver, because i am not sure
1609       if this works properly), eventually this should replace the clipping
1610       of ice velocities in seaice_dynsolver to +/-40cm/s.
1611    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1612      include it only where its needed
1613    o move balancing of fluxes before the call of external_forcing_surf
1614    o seaice:
1615      - correct units of turning angles (now they are really in degrees)
1616      - move computation of GWATX/Y out of main routine into dynsolver
1617      - initialize GWATX/Y in seaice_init
1618    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1619      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1620    o seaice: add runtime flags for turning angles (default to zero)
1621    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1622      and trend from exf forcing and ctrl control adjustments
1623    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1624      (since checkpoint57x_post)
1625    o change the default rotation period to 86164.s = the Earth rotation
1626    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1627      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1628    o seaice advection: add code for choosing between the default (2nd order
1629      central differences) and multiDim advection schemes provided by
1630      pkg/generic_advdiff
1631    o seaice:
1632      - removed all references to SEAICE_GRID.h fields from
1633        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1634        (cubed-sphere configuration will change a little)
1635      - grid computations in seaice_init are obsolete now.
1636      - cleaned up code a little so that is easier to read (hopefully).
1637      - added new (better?) discretizations of default advection and diffusion
1638        (turn on with SEAICEuseFluxForm)
1639      - replace 1 in 3d global fields by kSurface in growth.F
1640      
1641    checkpoint58a_post
1642    o seaice:
1643      - bug fix in advect.F
1644    o shelfice:
1645      - separate shelfice load anomaly from pload (breaks with time
1646        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1647        Its default is 0., but it may be computed more cleverly from (unknown)
1648        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1649        done offline. A good approximation of the pressure load anomaly is
1650        necessary to avoid large initial adjustment processes underneath
1651        deep-reaching shelfice.
1652      - small fix in ISOMIP shelfice_thermodynamics
1653      - add more sophisticated thermodynamics of Hellmer (1989), this is
1654        now the default
1655      - give a few constants more intuitive names
1656    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1657      if bulk formulae are used in long integration (especially EmPmR). Turn
1658      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1659      if balancePrintMean, the imbalance that is substracted is printed to
1660      STDOUT.
1661    o fix bug (typo) in obcs_apply_eta.F
1662    o add a new package shelfice which enables us to model the circulation
1663      underneath shelf-ice with draughts of hundreds of meters.
1664     - works
1665     - to do: + include improved thermodynamics
1666              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1667                instead of new field kTopC
1668              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1669                instead of new field R_shelfIce and new code in ini_depth.F
1670                and ini_mask_etc.F?
1671              + adjust vertical mixing schemes?
1672    o seaice pkg:
1673     - add a cpp-flag to include a simple formula for a salinity dependent
1674       freezing point of sea water at the surface
1675     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1676       meridional stresses are now different (and hopefully correct)
1677    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1678       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1679       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1680    o pkg/diagnostics: add options and parameters for regional-statistics
1681       diagnostics ; define regions by reading a region-mask from a file
1682       (might add other options later)
1683    o pkg/bulk_force:
1684     - add option and parameters to use AIM surface-flux formulae.
1685     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1686       others forcing fields (defined in PARM05, parameter file "data") are loaded
1687       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1688     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1689     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1690     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1691       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1692     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1693    
1694    checkpoint58
1695    o add "--embed-source" option to genmake2 which, when the supporting
1696      tools can be compiled (as determined by genmake2) will turn on the
1697      embed_files package which then embeds the entire MITgcm source code
1698      (*.[fFhc] + Makefile) used for the build within the executable
1699      - requested by CNH but off by default
1700      - adds a paltry <9MB to the mitgcmuv executable in most cases
1701      - only writes the output when useEMBEDSRC in eedata is true
1702    o clean up 3-dim. relaxation codes:
1703      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1704      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1705      * Thanks to Tom Haine for testing!
1706    
1707    checkpoint57z_post
1708    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1709      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1710    o fix the pickup behavior for obcs in combination with ptracers
1711    o fix a bug in ptracers_external_fields_load
1712    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1713      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1714    o transfered surface NH pressure to eta field (if exactConserv).
1715    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1716         and update lab_sea output.txt file.
1717    o completing 3-dim. relaxation code: additional term
1718         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1719      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1720      * At compile time, in "EXF_OPTIONS.h" set
1721          #define  ALLOW_CLIMTEMP_RELAXATION
1722          #define  ALLOW_CLIMSALT_RELAXATION
1723      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1724          tauThetaClimRelax3Dim = 15552000.0,
1725          tauSaltClimRelax3Dim  = 15552000.0,
1726      * 3 cases:
1727          1) Use a constant-in-time 3-dim. field
1728          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1729          3) Real-time relax. to time-evolving prescribed field
1730    o Adding Laplacian-type smoothness constraint on
1731      initial and boundary (forcing) controls (ic, bc)
1732      * enable at compile-time via
1733        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1734      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1735      * Absolute scale somewhat unclear so far
1736      * no area weighting was included since no other cost term does so far
1737    
1738    checkpoint57y_post
1739    First step for a NLFS adjoint
1740    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1741    o new init. routines for calc_r_star, calc_surf_dr
1742    o still need to deal with ini_masks_etc
1743    o testreport seemed happy
1744    checkpoint57y_pre
1745    
1746    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1747    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1748    o add new offset feature to offline pkg (plus minor cleanup)
1749    o cfc fixes for final year of integration
1750    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1751      be in GCHEM_OPTIONS).
1752    
1753    checkpoint57x_post
1754    o fix testreport Pb in multiple test experiment.
1755    o cleanup our namelist syntax in verification:
1756      - make it more F95 standards compliant (some work still needed)
1757      - allows the vast majority of our tests to work with gfortran
1758    o Non-Hydrostatic:
1759     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1760     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1761    o Allow to apply AB on T,S rather than on AB(gT,gS):
1762     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1763     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1764       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1765     - need a "clever" read_pickup to restart from the other AB formulation
1766    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1767    o remove some unused variables (reduces number of compiler warnings)
1768    o adjoint
1769      * Disable useVariableViscosity for adjoint for time being
1770        (there are a number of extensive recomputations)
1771      * Initialize certain variables needed for adjoint
1772    
1773    checkpoint57w_post
1774    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1775                 fix the singleCpuIO RS version of MDSWRITEFIELD
1776       and add a WARNING if using globalFiles=T with multi-processors.
1777    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1778      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1779    o tracer advection scheme:
1780      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1781       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1782       was not very convenient).
1783      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1784       (further tests needed for the implicit DST & Flux-Limiter schemes).
1785    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1786      and sRef for convenience, handy, when you want to initialize
1787      ptracers in a large domain with a constant non-zero value. Also,
1788      untangle ptracers_init.F a little.
1789    
1790    checkpoint57v_post
1791    o change dome exp. to use variable viscosity in side-drag terms.
1792    o remove all the files from the cfc_offline test since they are now
1793      incorporated into tutorial_cfc_offline which has been producing
1794      identical results for a few days of testing
1795    o add new parameter: sideDragFactor to enable half-slip-side BC
1796      and change side-drag S/R to use viscosity from mom_calc_visc
1797      (can switch back by setting sideDragFactor=0.); affects results at
1798      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1799       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1800    o vorticity & strain are now computed without masking, to account for
1801      no-slip-side BC in variable viscosity calculation ; mask is applied
1802      anyway later on, before computing advection/coriolis terms.
1803    o modify exp4 to test new obcs support for reading from external files
1804      and for passive tracers
1805    o fix behavior of ptracers_monitor when monitor output is written to a
1806      netcdf-file; still not independent of monitor.F (writes in the same
1807      file).
1808    o change default value of tRef (put a uniform, meaningful value for ocean
1809      & atmos) and initialize sRef (was missing, as Martin mentioned).
1810    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1811      to be proportional to enstrophy dissipation length.  Thus,
1812       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1813      This is now consistent with Smagorinsky and with the manual.
1814    
1815    checkpoint57u_post
1816    o OBCS and PTRACERS: add open boundary support for passive tracers
1817      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1818        OB-values from file; this is not different from the way theta and salinity
1819        are treated
1820      - however, Orlanski-radiation conditions are not supported, and the model
1821        will stop if you use pTracers and Orlanski at the same time.
1822      - beefed up the rountine obcs_external_fields_load: now only those open
1823        boundary values are overwritten with values from files for which there
1824        are really files, otherwise the OB-fields remain untouched. This makes
1825        it possible to use different OBs at different ends of the domain (as
1826        with EXF)
1827    o reduce number of exch calls in shap_filt (s2).
1828    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1829      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1830    
1831    checkpoint57t_post
1832    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1833    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1834      same truncation, independent of the face number: affects affects several
1835      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1836    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1837      note that biharmonic viscosity + no-slip was not tested in any experiment.
1838    o fix bug in non-linear free-surf side-drag ; generate new output for
1839      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1840    o make mnc honor the writeBinaryPrec flag for most kinds of output
1841    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1842    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1843      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1844    o add brackets in multi-terms sum to get same truncation, independent of
1845      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1846      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1847    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1848      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1849      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1850      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1851      Suggested values of viscosity parameters found in mom_calc_visc.
1852      Many new viscosity diagnostics available.
1853    
1854    checkpoint57s_post
1855    o Add clearing-house for viscosity calculations, mom_calc_visc and
1856      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1857      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1858      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1859      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1860      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1861      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1862      ViscAhStrain and viscAhTension are now retired.
1863    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1864    o In response to JMC's bug report, genmake2 now ignores any soft-links
1865      that it finds in the *current* directory when searching for files.
1866      Soft-links found in any other source directories will still work as
1867      they did before.
1868    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1869      a C routine to unlimit the stack size
1870    o mnc-ify pkg/aim snapshot vars
1871    o mnc-ify pkg/land as requested by Daniel
1872    o various changes to mnc including:
1873      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1874      - output can now be grouped so that all files within a group
1875          change the ITER portion of their names in lock-step together
1876      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1877          and works with both EXCH1 and EXCH2 (but needs more testing)
1878      - writing works for all verification test cases w/ g77 on Linux
1879    
1880    checkpoint57r_post
1881    o make MNC variable initialization happen earlier
1882    o add diagnostics for (almost) each term of the momentum Eq.
1883    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1884    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1885    o remove MINIMAL_TAVE_OUTPUT option ;
1886      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1887    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1888      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1889    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1890    o add time-dependent SST, SSS control
1891    o cost terms in ecco/ modularized (new cost_generic.F)
1892    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1893    o new infrastructure for seaice model vs. obs misfits in seaice/
1894      * driver from the_main_loop.F is seaice_cost_driver.F
1895      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1896      * gradient check in Exp. 6a of natl_box_adjoint/
1897    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1898      (see README file)
1899    
1900    checkpoint57q_post
1901    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1902    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1903      - bug was reported by Jean-Michel and Ian Fenty
1904    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1905      update exp. cpl_aim+ocn output.
1906    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1907      Needed for high-res. runs with large global files
1908      to be able to limit tapelev size
1909    o Changed some tests for adjoint:
1910      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1911      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1912      * global_ocean.90x40x15/ back to default 3-level checkpointing
1913    o Modifications to enable scripted COMMON to MODULE conversion
1914      * verification/OpenAD/code/ has necessary scripts and description;
1915      * converts, compiles and runs successfully;
1916    
1917    checkpoint57p_post
1918    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1919    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1920      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1921    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1922    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1923      (was already the case for dissipation with mom_vecinv,
1924       and also the case for grad.PhiHyd when staggered-timeStep)
1925      This will allow to put dissipation out-off the AB time-stepping.
1926     Unfortunately, affects truncation error. Update output of exp. that "fails"
1927      (cg2d matching number) and leave the others for later: front_relax(10),
1928      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1929      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1930    
1931    checkpoint57o_post
1932    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1933      (2) its ready to be documented during the 20050801 DocFest
1934    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1935      for ideal_2D_oce and lab_sea on linux_ia32_g77
1936    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1937      in global1x1_tot/code_seaice_adj to access indices 32, 33
1938      (worth another tag)
1939    
1940    checkpoint57n_post
1941    o adding precip control xx_precip 32
1942    o adding swflux control xx_swflux 33
1943    o Replacing 10 forcing penalty cost routines by 1 generic.
1944    o Implementing partitioning in time-mean and variable adjustment
1945      for atmos. state.
1946    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1947  o in natl_box_adjoint:  o in natl_box_adjoint:
1948    * updated: results_bulk/    * updated exp 1 to 10
1949    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1950    o updated global1x1/*_seaice_adj/
1951      to incorporate latest changes
1952    o enable useSingleCpuIO for mdsio vector routines
1953      (applies in particular to tapelev I/O)
1954    o removed inefficient K-loop in all active_file*control*.F
1955    
1956  checkpoint57m_post  checkpoint57m_post
1957  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2534  o add two new packages
2534    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2535    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2536      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2537      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2538  o add offline package  o add offline package
2539  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2540    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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