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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1105 by dimitri, Tue May 26 16:39:57 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o model/src/ini_curvilinear_grid.F:
8       compute angleSin/CosC when they are not read from a file
9    o pkg/seaice:
10       add pseudo time stepping for LSOR
11    o pkg/exch2:
12       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
13    o pkg/seaice:
14       Adding separate sea ice albedo, drag coefficients, and HO in Southern
15       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
16    o SingleCpuIO:
17       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
18    o pkg/seaice:
19       put exchanged variable in (local) common block for MPI+Multi-Threads
20       to work (necessary with exch1, and for now with exch2 too).
21    o verification: to get more experiments tested with mpi, mth and mpi+mth,
22      change tiling of:
23       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
24       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
25      update output of exp:
26       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
27       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
28      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
29                       (note: output.txt generated on faulks using only 1 tile)
30    o eesupp & mdsio (SingleCpuIO):
31     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
32       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
33       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
34     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
35     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
36       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
37    o pkg/exch2:
38     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
39       read parameter file "data.exch2" if it exists; otherwise try default regular
40       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
41     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
42       with new code (not to be used, just as a backup solution).
43     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
44       in utils/exch2/input.
45    
46    checkpoint61n
47    o eesupp & mdsio (SingleCpuIO):
48      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
49        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
50        receive real*4 array (instead of real*8) to read/write 32.bit files.
51        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
52         and remove new mapping S/R)
53    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
54      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
55        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
56        when using exch2. Add S/R to map global io-buffer to global model array.
57      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
58    
59    checkpoint61m
60    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
61      and add 3 other S/R for other types (R4,R8,RS).
62      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
63    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
64     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
65     - reduce number of macro definitions (keep only those which are used);
66       can always call directly the corrresponding S/R if needed.
67     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
68       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
69     Fixed wrong type of arg in:
70       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
71       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
72     To fix: global_sum of var in common block is wrong (multi-threaded) in:
73       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
74     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
75    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
76      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
77    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
78    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
79      edges are closed (zero depth); might happen with "blank tiles";
80      for now, disabled if using OBCS.
81    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
82      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
83    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
84      to reduce length of 1.D array print in STDOUT.
85    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
86      + use 48 tiles (16x8): this will allow to test "blank tiles".
87    o start to test MPI + multi-threaded (change testreport to skip tests
88      where number of tiles do not match).
89    o genmake2: add option "-omp" to turn on Open-MP ;
90      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
91    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
92      and keep the original tile numbering. Note: compatible with old
93      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
94    
95    checkpoint61l
96    o Overlaps had been forgotten in calculating ijk keys : fixed
97    o fix cyrus makedepend for gcc 4.4
98    o experiment fizhi-cs-aqualev20:
99      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
100      and generate new output. Note: new output is much closer to the old
101      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
102      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
103    o pkg/fizhi:
104     - change to avoid indices going deliberately over array-bounds
105     - remove unnecessary MPI stuff
106     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
107     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
108       does not go over array-bounds and therefore returns reliable output.
109     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
110       this S/R has 4 output arguments, which are used inside "get_alarm";
111       when it is called with the same variable "ndum" in place of several
112       output arguments, this produces weird side effect inside "get_alarm"
113      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
114       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
115       address) and produces error.
116    o tools/gemake2: (March 27-29 2009)
117      with option "-mpi": link *_mpi files from "MODS" dir (this is what
118      testreport does).
119    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
120    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
121       update lab_sea.lsr & lab_sea.salt_plume results
122    o pkg/seaice:
123      Major overhaul of the LSOR solver: change discretization from original
124      finite differences to finite volume. The old routine is still in the
125      file seaice_lsr.F and can be turned on with the CPP-flag
126      SEAICE_OLD_AND_BAD_DISCRETIZATION
127      Along with this change, the discretization of the strain rates is changed.
128      The same flag turns on the old discretization in seaice_calc_strainrates.F
129      All verification experiments with seaice are affected (except for
130      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
131      results by setting the above flag.
132      Further changes involve changes in defaults:
133      - ALLOW_FLOODING is defined and turned on by default
134      - SEAICEadvSnow = .true. is now the default
135      - SEAICEadvSalt = .true. is now the default
136      - SEAICEadvAge  = .true. is now the default
137      - SEAICE_clipVelocities  = .false. is now the default
138                                         (as per J. Zhang's recommendation)
139      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
140        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
141      - seaice_growth: replace computation of UG by a simple copy from wspeed
142    
143    checkpoint61k
144    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
145      seaice_lsr: fixed a few metric terms,
146                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
147                  add more debugging diagnostics
148      seaice_evp: removed superfluous many metric terms of FV discretization
149                  of stress divergence
150                  affects lab_sea, lab_sea.hb87
151      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
152                  of stress divergence for non-evp solver
153                  (this part is not tested anywhere)
154      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
155                  they were effectively only half slip
156                  affects lab_sea.hb87
157      updated all relevant verification experiments (except lab_sea//output_adm.txt
158        which was left over, but fails at level 7 & 6)
159    
160    checkpoint61j
161    o pkg/seaice: turn a few hard wired parameters into run time parameters
162    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
163      time in seconds as promised by the usints in seaice_monitor and exf_monitor
164    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
165      that are not cubed-sphere grids
166    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
167    o pkg/ctrl:
168      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
169    o non-hydrostatic (calc_gw.F):
170      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
171      update output of exp. global_ocean.cs32x15.viscA4
172    o remove backward compatibility for thetaMin,phiMin
173      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
174    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
175      interpolated wind field not only for curvilineargrid=.true., but also
176      for a rotated grid (rotateGrid=.true.)
177    o pkg/exf: add capability to bypass interpolation for runoff
178      by setting yet another CPP-flag
179    o eesupp/src, B-grid exchange:
180      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
181    o autodiff
182      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
183      allows to switch to single-prec common blocks;
184      corresponding switch occurs in tamc.h, integer isbyte
185      TAF store directivs "byte" and "kind" seem equivalent;
186      Most tamc.h have been updated correspondingly.
187    
188    checkpoint61i
189    o autodiff:
190      fix autodiff_sore/_restore indices for obcs
191      (spotted by I. Hoteit, M. Mazloff)
192    o pkg/autodiff, pkg/ctrl:
193      Add flag to reduce all tapelev I/O to single-prec.
194      In data.ctrl set
195        doSinglePrecTapelev = .TRUE.
196    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
197      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
198    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
199      real fresh water flux (not yet)
200    o pkg/mdsio & rw:
201     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
202     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
203    o pkg/flt:
204     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
205       init_fixed & ini_varia.
206     - clean-up & simplify linear interpolation S/R:
207       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
208     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
209     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
210     - add vert. coordinate & horiz. indices to output files.
211     - change vertical position in initial condition, from index to depth [m].
212     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
213       (easier to get to a curvilinear grid) ; delX,delY no longer used.
214    o pkg/ggl90: a few modifications:
215     - fix bottom boundary condition, and interpolation of KappaE
216       near top and bottom
217     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
218     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
219     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
220    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
221      (maintain temporary backward compatibility, until next checkpoint)
222    
223    checkpoint61h
224    o pkg/diagnostics with "periodic averaging diagnostics":
225      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
226    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
227    o pkg/obcs: fix loop ranges for balancing code
228    o pkg/flt:
229     - improve criteria for finding which tile owns a float.
230     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
231    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
232      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
233      with ocean biogeo)
234    o pkg/flt:
235     - do some cleaning and fix the restart ;
236     - add output.txt in flt_example/results to get this pkg tested.
237    o genmake2: add an EXTENDED_SRC option and flag.
238       for now, cannot be turned on on command line (only through genmake_local)
239    o pkg/mdsio: read/write vector:
240     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
241     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
242       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
243     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
244      (drop to 4 digits matching for grad). But this test does not look very
245      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
246    
247    checkpoint61g
248    o pkg/flt:
249      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
250       + make OPTIONS file more standard.
251      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
252      - fix _BYTESWAPIO CPP-Flag
253      - standard reading of file-parameter "data.flt"
254      - fix argument list of S/R FLT_RESTART
255      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
256    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
257    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
258      a still unfixed compiler/optimization bug
259    
260    checkpoint61f
261    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
262      update results of global_ocean.cs32x15.icedyn test.
263    o move getcon.F from model/src to pkg/fizhi.
264    o pkg/exf: add parameter for extrapolation of temp up to the surface
265       and option to prevent negative evap (in bulk_largeyeager04 only).
266    o Prather Advection scheme: fix tracer conservation for divergent flow
267      (e.g., when using NonLin Free-Surface).
268    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
269    o gmredi (Visbeck-variable-K):
270     - add more parameters to Visbeck-variable-K.
271     - use a 5 points average for dSigmaR in Visbeck-K calculation
272       (more "homogenous": same stencil and same weights as in dSigmaH)
273     - update output of ideal_2D_oce experiment.
274    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
275      (#undef REAL4_IS_SLOW)
276     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
277       coordinate variable
278     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
279       (surface forcing fields), removes some of the functionality
280     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
281     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
282       probably not all: copy _RS surface flux fields to RL field before
283       calling DIAGNOSTICS_FILL
284     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
285       real*4 (CALL EXCH_*_RS) versions.
286     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
287       (generate new output).
288    
289    checkpoint61e
290    o gmredi (Visbeck-variable-K):
291      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
292      - change computation of Visbeck-K where Slope > Smax :        
293        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
294        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
295    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
296      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
297    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
298    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
299      does not become too large (to avoid precision problems in implicit-diffusion
300      solver); update ideal_2D_oce output.
301    o pkg ggl90:
302      - in ggl90_cal.F: compute only one set of visc/diff, used to
303        step forward TKE/T/S/momentum
304      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
305        have Prandlt =1)
306    o gmredi (fm07):
307      - add lower limit on Transition layer thickness + lower limit on 1/lambda
308      - allow to set few more params from data.gmredi
309    o pkg ggl90:
310          - add missing sqrt(2) factor in computation of mixing length
311            scale in ggl90_calc.F
312            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
313    
314    checkpoint61d
315    o adjoint modifs
316      - adapt to new field rhoInSitu
317      - allow to revert from StoreDynVars2D, StoreDynVars3D
318        to individual fields
319        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
320    o store 3-D (in-situ) density in commom block (DYNVARS.h)
321     - save 1 rho computation.
322     - no longer modify T & S inland when using down_slope pkg.
323    o gad_som : allow to switch to SOM advection for T & S without corresponding
324      pickup files (using new S/R: MDS_CHECK4FILE).
325    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
326      (for useSingleCpuIO to work in multi-threaded)
327    o pkg/shelfice:
328     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
329       with SHELFICEtopoFile in data.shelfice
330     - move code for reading ice shelf topography and modifying hFacC into separate
331       subroutines of the shelfice package
332     - separate initialisation of "fixed" and "variable" variables
333     - kTopC is not (yet) replaced by kSurfC, although this is possible
334    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
335    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
336      and rename:
337      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
338      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
339    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
340    
341    checkpoint61c
342    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
343      to add mass source/sink of fluid in the interior (3-D generalisation
344      of oceanic real-fresh water flux).
345    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
346    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
347    o new pkg: down_slope
348      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
349      - presently, modify T & S inland (dwnslp_calc_rho.F).
350        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
351      - implementation for ocean in P-coords not tested.
352      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
353    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
354      (to facilitate conversion of oceanic pkg to p-coordinate).
355    o change FIND_RHO to FIND_RHO_2D :
356      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
357    o new pkg: cheapaml
358    
359    checkpoint61b
360    o exch2:
361      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
362      - no longer depend on the order sequence (N,S,E,W).
363      - 3rd exchange no longer needed (tested with 24 tiles).
364      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
365      - exch_UV_A-grid readily available (but not yet tested).
366      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
367      (both are no longer needed) in exch_uv: no effect in forward run; but
368       get truncation error differences with adjoint exch.
369    o exch2:
370     - change index-bounds storage (moved from target to local tile,
371       more intuitive this way) ; rename/remove some variables.
372     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
373    
374    checkpoint61a
375    o exch2/matlab-topology-generator:
376      fix bug in index bounds for N-S internal exchange (hard to tell if this
377      had any effect on the solution).
378    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
379      is exceeded
380    o testreport: modify syntax of awk, so that it works also with
381      awk, and not only with nawk and gawk
382    
383    checkpoint61
384    o autodiff
385      Change default for TAF usage by removing argument '-nonew_arg'
386      This changes TAF subroutine argument list (ordering of active var.)
387      Omission of this flag leads to incompatibility w.r.t. TAMC
388      To restore TAMC-compatibility, need following modifs:
389      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
390      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
391      Tested TAF version is 1.9.22
392      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
393    
394    checkpoint60
395    --->>> This is the last checkpoint for which generating the adjoint
396    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
397    --->>> by default.
398    --->>> Future checkpoints will ommit this flag by default.
399    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
400    o pkg/grdchk: Add gradient check to etan0 perturbations.
401    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
402    o pkg/autodiff: more flexibility in zeroadj.
403      model/src: modifying do_oceanic_phys.F accordingly.
404    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
405    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
406      special setup of gmredi for which the adjoint is stable
407      enough for parameter optimization.
408    o bridging the gap between eddy stress and GM.
409      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
410          along with a change in CPP option (now ALLOW_EDDYPSI).
411      -> when using GM w/ GM_AdvForm:
412          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
413          is applied either in the tracer Eq. or in momentum Eq.
414          depending on data.gmredi (intro. GM_InMomAsStress).
415      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
416      The key modifications are in model/src/taueddy_external_forcing.F
417      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
418    
419    checkpoint59r
420    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
421      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
422      fix option to read coriolis(@ cell-corner) from files with CS-grid.
423    o pkg/mnc: add some attributes to standard 1D-coordinate variables
424    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
425      mass points, when using mnc for output
426      - add runtime parameter (missing_value, missing_value_int) to override
427        default (which is the value of getcon('UNDEF'))
428    o pkg/mnc: prepare mnc for the actual use of missing values with the
429      diagnostics package: small fix in mnc_cw_readwrite.template and more
430      initialisation of never used fields
431      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
432      versions
433    o pkg/thsice/thsice_ini_vars.F added default initial values so that
434      thermodynamics sea ice solver does not blow up when some initial fields
435      are missing.
436    o move from external_forcing_surf.F to ini_forcing.F
437      the p-coord. hack consisting in using pLoad to set phi0surf ;
438      update output of tutorial_global_oce_in_p (affected @ truncation level).
439    o Freshen up a bit hs94.1x64x5, notably:
440      remove rotationPeriod and tRef=5*0. (adjoint only), and add
441      exactConserv=.TRUE.
442    o pkg/generic_advdiff:
443      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
444      applies to files where Temperature & Salinity 2nd Order moments are used.
445    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
446      this uses a dynamically allocated internal state data structure
447      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
448      and requires a fortran 90 compiler
449    
450    checkpoint59q
451    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
452       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
453    o Refresh tutorial_global_oce_biogeo, notably:
454      - change bathymetry (put back seamounts in ACC, use hFacs)
455      - change EOS (POLY3 --> JMD95Z)
456      - use Bryan-Lewis vertical diffusivity
457      - use multidimensional advection
458      - remove old virtual virtual in dic pkg, now done through ptracer pkg
459      - change a couple of parameters in dic pkg
460    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
461    o pkg/obcs: change default to OBCSfixTopo = .true.,
462      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
463      - replace "debugMode" with "debugLevel .GE. debLevB"
464    o implementation of TAF directives for gchem,cfc,dic
465    o remove "exp5" (replaced by tutorial_deep_convection).
466    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
467      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
468      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
469      --> changes results in exp4, seaice_obcs
470    o tutorial_deep_convection :
471      update the set-up and increase resolution and domain size ; start
472      from pseudo initial conditions = output at t=120mn in order to see
473      something happening when running testreport.
474    o pkg/seaice: add os7mp as an advection scheme
475                  add check for advection schemes
476                  add a flag for restoring T and S underneath sea ice
477    o pkg/my82: add netcdf-support and diagnostics
478    o thsice pkg:
479      - Now hsMax limits snow height by turning it into ice following
480        flooding scheme (and now conserving energy)
481      - Slight rewriting of the formula in thsice_calc_thick.F
482      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
483      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
484    
485    checkpoint59p
486    o gchem / dic / cfc :
487      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
488      - add new parameter files: "data.dic" & "data.cfc" ;
489      - various re-arrangement in initialisation & header file ;
490      - fix tutorial_global_oce_biogeo for multi-threaded test.
491    o pkg/dic: test for "pickup_dic" file when restarting ;
492      if no pickup-file, can restart with a re-initialised pH (same as it did
493      before) providing pickupStrictlyMatch is set to False.
494    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
495      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
496    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
497      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
498    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
499     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
500       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
501    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
502       scheme to use for vorticty-term ;
503     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
504       (with default selectVortScheme, return to original discretisation)
505     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
506    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
507    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
508      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
509      also fix diagnostics VISCAHW & VISCA4W.
510    
511    checkpoint59o
512    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
513    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
514      move a few statemens out the main loop into separate loops
515    o pkg/shelfice:
516      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
517        (kg/m^2/s), does not break tests, because in verification/isomip,
518        rhoConstFresh=rhoConst (by accident)
519      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
520      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
521        new file model/src/seawater.F, so that they are available for all pkgs.
522      - convert potential temperature into in-situ temperature. This changes the
523        isomip tests => update tests
524    o add a flag writePickupAtEnd (default=true) to be able to suppress
525      writing a pickup at the last timestep
526    o tools/mpack-1.6 :
527      - disable automake (not working) and autoconf (not needed).
528      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
529        also cleaner with much less compilation warnings.
530    o pkg/profiles:
531      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
532      (for "less than 32 characters name" compiler requirement)
533    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
534      conditions that have a different sampling frequency than S/T/U/V obcs
535    o pkg/diagnostics (stats-diags):
536      - fix global Min/Max in case 1 processor get only empty tiles
537    o genmake2: replace (4 times)
538         make genmake_tc_1.o >> genmake_warnings 2>&1
539      with
540         COMM="$CC $CFLAGS -c genmake_tc_1.c"
541         echo $COMM >> genmake_warnings
542         $COMM >> genmake_warnings 2>&1
543      to make genmake2 always see the value of CC as specified in the optfile.
544    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
545      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
546      - modify verification advect_cs test to test SOM-advection on CS-grid.
547    o pkg/ctrl:
548      - Rewrite of ctrl_map_ini_ecco.F,
549        introducing a generic routine (ctrl_map_ini_gen.F).
550      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
551    
552    checkpoint59n
553    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
554      number in dedicate array "hdiag":
555      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
556        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
557      - many small changes (integer format) for large number of diagnostics
558      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
559        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
560    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
561      usingSphericalGrid, this allows to define the rotated grid coordinates
562      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
563      geographical coordinates according to the inverse of the rotation defined
564      by the Euler angles, so that Coriolis parameter and online-interpolation by
565      exf works with the geographical coordinates on XC/YC/XG/YG.
566      Naturally, this feature does not work with all packages, so some
567      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
568      profiles), because there the coordinates are assumed to be regular
569      spherical grid coordinates.
570    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
571      - introduce isopycnal diffusion coefficient control.
572    o tools/adjoint_options:
573      - additional control vector components.
574    o pkg/mnc: have mnc create marginally meaning full coordinate variables
575      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
576    o pkg/mypackage:
577      - add example of read/write pickup for state-var ;
578      - add entry points to the main code for state-vars diags & write-pickup.
579    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
580      transitions for useExfYearlyFields
581      - add new subroutine that determines the file to read from for
582        use*YearlyFields = .TRUE. and .FALSE.
583      - add a verification experiment to global_with_exf that tests
584        useExfYearlyFields with USE_EXF_INTERPOLATION defined
585    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
586      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
587      subroutines (which could be generated from a template, because they are
588      almost identical), for now they are included in obcs_prescribe_read.F for
589      simplicity
590    o pkg/exf:
591      - add a little more diagnostic to exf_interp_read (in analogy to
592        mds_read_field, can be turned off with debugLevel < debugLevA=1)
593      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
594        ugly but fast by unrolling short inner loops, inserting a unroll=8
595        directive in routine lagran, and splitting a loop and making do while the
596        outermost loop (the latter requires the intoduction of index arrays)
597    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
598    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
599      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
600    o verification/seaice_obcs: updated for restart test and latest options
601    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
602      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
603      for now this is only available for the C-grid code and also within
604      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
605    
606    checkpoint59m
607    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
608      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
609    o gad_som : fix flux output (& diagnostics) to have same units as other  
610      advection scheme fluxes (was previously multiplied by deltaT).  
611    o added verification/seaice_obcs both to test seaice open boundaries
612      and to provide an example matlab scrpt for generating them
613    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
614    o pkg/salt_plume: clean up salt_plume_frac.F to
615      remove redundancy in PlumeMethod 1 and 4
616    o pkg/kpp: added saltplume diagnostics
617    o pkg/obcs and pkg/seaice:
618      - do not set uice and vice to zero when OB*icefile are unspecified
619      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
620      - moved seaice tracer obcs after call to seaice_growth
621    o pkg/salt_plume: added various options for salt plume depth
622      criterion and for vertical distribution of the salt
623    
624    checkpoint59l
625    o pkg/ptracers: new version of ptracers pickup:
626      read meta file and write only fields which are needed to restart.
627      ( same logic as main pickup file ; also using pickupStrictlyMatch )
628    o pkg/seaice:
629      - add timescale for melting due to warm mixed layer as a means of
630        setting SEAICE_availHeatFrac more conveniently
631      - add a CPP-flag/runtime parameter check for flooding algorithm
632      - reformulated availHeat in seaice_growth.F to be independent of AREA
633    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
634      unit changes
635    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
636    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
637      SX vector computer.
638    o pkg/seaice:
639      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
640        seaice forcing fields can now be read only through pkg/exf
641      - removed some unused halos
642    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
643    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
644      or U/VICE from U/VWIND before computing U/VSTRESS
645    
646    checkpoint59k
647    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
648      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
649    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
650      all experiments pass when compile with un-initialised var. checking option.
651    o added pkg/salt_plume
652    o script to test restart (for now, in MITgcm_contrib/jmc_script)
653    o pkg/seaice: new read/write pickup version.
654      read meta file and write only fields which are needed to restart.
655      ( same logic as main pickup file ; also using pickupStrictlyMatch )
656    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
657    o lab_sea.hb87: modify the domain & update output.hb87.txt :
658      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
659      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
660      process. Fixed here by closing the domain at the Northern boundary.
661    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
662    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
663      a set of consecutive levels in/from a 3-D array.
664    o pkg/ptracers:
665      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
666      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
667    
668    checkpoint59j
669    o in pkgs: dic, obcs, offline, rbcs:
670      standard way to compute coeff. for time interpolation between 2 time reccords
671      which retains full precision (& make results less dependent on compiler).
672      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
673    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
674      packages instead of reading ice cover and wind speed separately
675    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
676     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
677      to allow to compile customized code before the update)
678    o cleaning-up:
679      - fix CPP instruction syntax in pkg/obcs
680      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
681        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
682      - fix some threads issue in IO parts.
683    o pkg/dic:
684      - add tons of "_d 0" (--> much better testreports !)
685       and then update outputs of tutorial_global_oce_biogeo
686    o pkg/mom_fluxform:
687      add a special version of momentum advection intended to conserve momentum
688      next to a bathymetry step or a coastline edge. (default = off = #undef)
689    o new read/write pickup version:
690      - for now, only implemented for main (mdsio) pickup file.
691      - write out only what is needed to restart; merge pickup_nh , pickup_ph
692        and main pickup together.
693      - read meta file; read only what is needed to restart; stop if a field
694        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
695        if it make sense (even if the restart is not perfect).
696      - if no meta file, assume that pickup to read corresponds exactly to
697        a pickup that would currently be written.
698      - read pickup written in the old format (until checkpoint59i) if it
699        recognizes an old meta file (no field-list).
700      - add a meta file in exp. which starts from a pickup: 2 cases:
701        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
702         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
703        b) a meta file describing the content of the associated pickup file
704         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
705    o pkg/mdsio & pkg/rw:
706      - new routine to read a meta file ; new set of routine to read
707        Multiple-fields file (with meta file).
708    o added open boundary conditions capability for seaice
709        HSNOW, HSALT, UICE, and VICE
710    
711    checkpoint59i
712    o adjoint:
713      * fix multiDimAdvection adjoint
714        (partial recomputation problem by TAF for fVerT(:,:,kDown)
715        and comlev1 size definition (maxpass vs. max. number of tracers)
716      * verification/global_ocean.90x45x15 adjoint now tests
717        NLFS and multiDimAdvection using DST3 (=30)
718      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
719    o pkg/kpp: add "_d 0" to real constant (if missing);
720      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
721      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
722    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
723      for internal parameters related to restart process (formerly from PARAMS.h)
724      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
725    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
726      as argument. (only atm2d & obcs write_pickup have not yet been updated)
727    o pkg/monitor:
728      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
729      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
730      - account for deep Atmosphere factor and density factor (anelastic)
731    o added open boundary conditions capability for seaice HEFF and AREA
732    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
733      thermodynamics
734      - requires a little reorganization, which affects the testreport results
735        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
736        so that now the conservative form is tested
737      - add a few comments
738    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
739    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
740    o add new diagnostics to seaice: advective, diffusive fluxes (only for
741      multidim-advection, for scheme 2 they are not filled) and transports,
742      thermodynamic growth rates
743    o change units of EmPmR (inside the code, + within coupling interface)
744      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
745      Affects results @ truncation level (cg2d match) and update output of
746       experiments: lab_sea(6), global_ocean.90x40x15(10),
747      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
748      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
749      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
750      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
751    
752    checkpoint59h
753    o pkg/exf:
754      - improve vectorization by moving if-statement out of loops in
755        exf_mapfields, exf_radiation
756      - exf_bulkformulae.F: introduce 2D fields and vectorize code
757    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
758    o testreport:
759      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
760        monitor & update offline_exf_seaice exp. output.
761      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
762    o pkg/seaice:
763      - bug fix in the evp solver: boundary conditions were affected be
764        masking of zMax/zMin (changes results)
765      - minor bug fix in boundary conditions in seaice_calc_strainrates
766        (changes results for no_slip)
767      - seaice_lsr.F: make interpolation of eta dependent on boundaries
768      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
769      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
770        stress formulation and no-slip boundary conditions
771    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
772      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
773    o pkg/seaice: a first HSALT time stepping equation has been checked in
774    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
775      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
776      without requiring DO-IF statements
777    o pkg/thsice:
778      use continuous power-law function for partition of energy between lateral
779      melting/freezing and thinning/thickening ; old code using step function
780      still available with #undef THSICE_FRACEN_POWERLAW
781      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
782    o testreport: change AD testing : check against results/output_adm.txt
783      using same scripts as for forward test.
784    
785    checkpoint59g
786    o adjoint testing: in preparation for changing testreport:
787      - output format: cost and grad written on separated lines
788      - ad output results in directory "results" (instead of "results_ad")
789    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
790    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
791    o pkg/ecco: allow user defined cost function contributions
792    o testreport:
793      Allow to choose (per experiment) the list of tested output variables
794       and the main variable (used to issue a pass/FAIL ) ;
795      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
796      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
797      Also modify printing of summary:
798       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
799       b) echo the list of tested variables in the individual summary.txt of
800          each experiment.
801    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
802      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
803      (but still depend on the tile decompostion of the domain).
804    o pkg/seaice: change a discretization detail to make the B-grid code
805      "more symmetric". This change is likely to remove all "ridges/leads" that
806      where quasi-aligned with the grid in B-grid solutions. It may also be
807      the solution to the stress coupling issues with the B-grid.
808    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
809      remove .cvsignore from input dir. (since testreport no longer run here).
810    o pkg/thsice:
811     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
812     - fix reshaping of sea-ice just after advection:
813       melt all the ice only if ice-volume is too small.
814     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
815       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
816     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
817    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
818      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
819    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
820      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
821      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
822      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
823      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
824      -> update output.txt
825    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
826     this affects truncation error: -> update output.txt of exp:
827      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
828      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
829    
830    checkpoint59f
831    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
832    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
833      a bounded range (in forward mode)
834    o pkg/ecco, ctrl, autodiff and mom_common:
835     internal parameter controls, completements of implementations
836    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
837    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
838      (not seem any difference in testing results).
839    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
840       at face corners.
841    o pkg/generic_advdiff:
842     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
843      loop range indices for computing vertical advection tendency
844      and do the calculation in the interior only (no overlap) ;
845      for now, only implemented for SOM advection (to save CPU time).
846     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
847    o exch2 adjoint
848      First set of changes:
849      - add exch2 hand-written adjoint templates
850      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
851        This will require cleanup in pkg/autodiff/*.F
852        (changed routines currently kept separate in verif. code/)
853      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
854        that used to hide exch2 or cubed-sphere specific code
855        (commented via 'cph-exch2')
856    o pkg/seaice
857      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
858    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
859       output of global_ocean.cs32x15.thsice .
860    
861    checkpoint59e
862    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
863      for B-grid vector (not yet tested) and C-grid vector (<- only used
864      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
865    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
866      (#ifdef ALLOW_SALT_PLUME)
867    o gather_2d/scatter_2d: removed halo regions
868    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
869      scheme and the corresponding test case (under front_relax dir). For now,
870      only available with Skew-flux form and not yet tested in realistic set-up.
871      adjoint: store directives updated, but gradient checks deteriorated,
872      so maybe GM/Redi adjoint is now broken.
873    o seaice adjoint
874      * add AREA, HEFF, HSNOW as control variable
875        (should not change lab_sea results)
876      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
877    o pkg/seaice:
878      * added computation of saltFlux in seaice_growth;
879        For time being, sea ice salinity is assumed constant
880        contribution of snow flooding to freshening of sea ice is neglected.
881        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
882        defaults to 0.0 in order to maintain backward compatibility.
883        Typical values for SEAICE_salinity are 4 to 10 g/kg.
884      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
885      * added SEAICE_availHeatFrac, which specifies fraction of surface level
886        heat content used to melt or grow ice
887      * commented out cap of HICE: it helps keep ice thinner
888      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
889      * applied OBCS T/S mask to HEFFM sea ice mask
890    
891    checkpoint59d
892    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
893     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
894     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
895    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
896     and change default value of parameter "GM_Small_Number";
897     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
898       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
899       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
900    o pkg/ecco: cost function when applying pkg/smooth to controls
901    o pkg/ctrl: add forcingPrecond run time parameter
902    o pkg/seaice:
903     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
904     - fix bug in metric terms of u-equation in LSR solver (implicit part),
905       changes verification/lab_sea
906     - rearrange implicit part of u-equation in LSR solver to make it easier to
907       read, understand, and debug. This causes changes at the truncation level.
908     - fix (serious) bug in the boundary conditions (sign error in the implicit
909       part) of the LSR solver. Changes all LSR results.
910     - fixed problem with HSNOW initialization to avoid thick snow when AREA
911       is initilized with small values - does not change lab_sea results.
912     - added HsnowFile initialization capability
913    o pkg/smooth: addition to model/src and pkg/ctrl so allow
914     initialization of pkg/smooth and application to control vector
915    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
916    o dependencies: pkg/profiles requires pkg/cal
917    o pkg/profiles:
918     - added option ALLOW_PROFILES_GENERICGRID
919         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
920         that interpolation information (grid points and coefficients) is provided
921         within the netcdf input files.
922         -> sample matlab scripts can be found in MITgcm_contrib/gael
923         that allow you to prepare netcdf input files.
924     - also modified: cleaner include statements, cleaner error print statements,
925       cleaner stops when error, and more tests of the netcdf input files consistency.
926    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
927    o pkg/seaice:
928     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
929       requires a new routine: seaice_diagnostics_fill.F
930     - make sure that seaice does not move if not forced (pressure replacement
931       method, Hibler and Ip, 1995), changes results
932     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
933     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
934       It is turned off by default (=-1.), because it changes the results.
935     - make it possible to read AREA from a file, too.
936    
937    checkpoint59c
938    o add S/R and diagnostics for oceanic mixed-layer depth
939    o move GMRedi call after all vertical mixing schemes (including KPP)
940    o pkg/thsice:
941     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
942      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
943    o pkg/obcs:
944     - bug fix for balance code
945    o pkg/seaice:
946      - allow values of SEAICE_elasticParm > 1
947      - add new parameter SEAICE_evpTauRelax as an alternative
948        to SEAICE_elasticParm
949      - make lsr boundary conditions free slip (by default), changes result
950      - add code for no slip boundary conditions for lsr
951      - set minimum of zeta to zero (and not 4e8) (changes results)
952      - add a cap on AREA after advecting AREA if seaice_growth is not called
953    o change calculation of Visbeck K:
954      - no longer depend on tapering scheme; instead, compute slope (limited
955        by GM_maxSlope). this is equivalent to what was comuted before with
956        clipping or linear tappering.
957      - fix vertical averaging (wrong by 1/2 level)
958      - leave the old version (but will not be maintained) within
959        #ifdef OLD_VISBECK_CALC / #endif
960      - update output of exp. ideal_2D_oce
961    o change error catch in calc_r_star to improve vectorization
962    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
963      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
964    o adjoint:
965      Re-organized adjoint checkpointing according to Matt Mazloff
966      (but with modifs/completions/cleanups)
967      Storing is now bundled into large arrays to optimized I/O
968      (and second step in cleanup of the_main_loop)
969    
970    checkpoint59b
971    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
972      - export/import (between ocean & coupler) fields needed for ocean DIC.
973    o pkg/seaice:
974      - get rid of three more exchanges seaice_calc_viscosities (required
975        different loop boundaries in seaice_lsr and seaice_ocean_stress)
976      - bug fix in seaice_ocean_stress (update of lab_sea required)
977      - reduce loop boundaries to necessary minimum also in seaice_evp
978      - go back to the old way of computing deltaC/Z as the adjoint likes that
979        better
980    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
981      passive tracer to an Age Tracer) + update output.txt
982    o pkg/exf:
983      - implement A-grid / C-grid selection for wind-stress input files.
984      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
985      for now, in exf_bulk_largeyeager04.F only :
986      - change implementation for case where windspeed + 2. components wind-stress
987        are read-in. AND use rhoConstFresh to convert evap.
988    o pkg/seaice:
989      - use correct EXCH_UV for wind-forcing (on A-grid).
990      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
991        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
992    o pkg/exf:
993      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
994      EXF_INTERPOLATION:
995      - merge global_with_exf/code version of exf_interp_read.F
996        to the main code ;
997      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
998        reading the file ; Important: This options needs to be defined to recover
999        previous code.
1000        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1001      - no longer loose real*8 precision along the way when using exf_iprec=64.
1002    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1003      - change discretisation of evp-solver in order to avoid another exchange
1004        (changes lab_sea) and clean up a little
1005      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1006        help the adjoint (this also changes the results slightly)
1007      - add a few "_d 0" where they had been missing in seaice_evp.F
1008      - cleaning up: remove unused seaice_calc_rhs.F
1009    o pkg/exf: some cleaning-up:
1010      - change various "constants" into runtime parameters
1011      - cleaned-up Large&Yeager04 routine which should eventually
1012        replace exf_bulkformulae.F (changed names of S/R and CPP)
1013        and merged various ALLOW_ATM_WIND options
1014     only used with thsice pkg (in thsice_get_exf.F):
1015      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1016        which are used when useStabilityFct_overIce=TRUE (= the default)
1017      - change default values of ice & snow emissivity and scale downward LW
1018        by ice & snow emissivity.
1019    o pkg/thsice:
1020     fix few little problems, in thsice_calc_thickn.F:
1021      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1022      - melt only laterally if hIce < hThinIce (as the comments say)
1023      and in thsice_extend.F:
1024      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1025      - start to form ice as soon as the minimum ice-volume is reachable.
1026     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1027      and cpl_aim+ocn
1028    o pkg/kpp
1029     - move computation of surface related input fields to KPP into a new
1030       subroutine kpp_forcing_surf.F
1031     - remove wrong (within bi,bj loops) EXCH calls.
1032     - little cleaning (add argument myThid in last position, cvs header ...)
1033     - for now, fix conservation problem by exchanging KPPviscAz (may not
1034       be the best fix)
1035    o pkg/seaice
1036     - check for inconsistent evp parameter/cpp-flag combination
1037     - remove leftover errIO flat for obsolete name list error handling
1038    o OpenAD
1039     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1040    
1041    checkpoint59a
1042    o pkg/seaice: some parameter clarifications and a little bit of clean up
1043    o pkg/thsice: rename run-time parameters:
1044       himin       -> hIceMin
1045       himin0      -> hThinIce
1046       hihig       -> hThickIce
1047       i0          -> i0swFrac
1048       transCoef   -> bMeltCoef
1049       frac_energy -> fracMelting
1050      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1051       with default values (for now) that do not change the results.
1052      remove old version of thsice vars advection in pkg/seaice.
1053    o in FFIELDS.h:
1054      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1055      - make pLoad & sIceLoad always available (but still only used if
1056         ATMOSPHERIC_LOADING is #define).
1057    o pkg/kpp: replaced _KPP_RL with _RL
1058    o bug fixes for vertical diffusivity computations when both KPP and
1059        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1060        are no longer updating the vertical diffusivity array
1061        (passed as argument) but are (re-) setting those arrays.
1062    o pkg/seaice: fix bug in evp solver, while doing that
1063      - change (improve?) discretization of stress computations for both
1064        cgrid-lsr and evp solver
1065      - add a new routine to compute strain rates
1066      - the above changes lab_sea results
1067      - add no slip conditions for evp solver (off by default), lsr-version
1068        may follow
1069      - fix exchange for shear at Z-points (does not change lab_sea)
1070      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1071        (to force the user to pick a time step since there is not "safe" way
1072        of choosing it)
1073      - add principal stress diagnostics
1074      - rearrange fields for evp a little to avoid having to call a: too many
1075        exchanges and b: exchanges for stress trensor components which we do
1076        not have.
1077      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1078        of evp, complete rewrite for lsr case (latter is does not yet work
1079        in all cases)
1080    o pkg/kpp: add code to have mixing in shelf ice caverns
1081      - add myThid to all kpp routines (long overdue)
1082    
1083    checkpoint59
1084    o pkg/exf:
1085      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1086        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1087      - move exf header files from lower_case.h to UPPER_CASE.h ;
1088        add missing cvs Header & Name
1089      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1090      - add namelist param. selectStressGridPosition, exf_monFreq
1091      - retire many _CLIM routines, and remove data.exf_clim
1092        + params moved to data.exf
1093        + climsst, climsss now handled by exf_set_gen, i.e.
1094          climss?period=0 refers to constant field,
1095          climss?period=-12 to monthly forcing
1096      - split up namelists in data.exf
1097    o pkg/seaice:
1098      - remove seaice_exch and seaice_exch_uv
1099      - remove superfluous exchange of theta
1100      - add myThid to seaice_budget_ocean/ice
1101      - add new interface for atmospheric wind forcing (C-grid only)
1102        + new routine
1103        + two new field (taux, tauy for stress over ice)
1104        + removed one global field (DAIRN) for C-grid case only
1105    o pkg/thsise
1106      - 2nd set of modifs for thsice adjoint in conjunction with exf
1107    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1108    
1109    checkpoint58y_post
1110    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1111      vertical diffusivity, similar to that in MOM4; turned on using
1112      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1113      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1114    o Added capability for 3D specification of background vertical diffusion
1115      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1116      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1117      "data" file that contains the 3D vertical diffusivity coefficients.
1118    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1119      - add code within pkg thsice to advect & diffuse sea-ice fields
1120      similar to (and will replace) what has been added in  seaice_advdiff.F,
1121      but: - conserving Mass, Heat & Salt.
1122           - better when using non-linear advection scheme (not yet fully tested)
1123           - can also be used in atmospheric set-up (for now, only the diffusion).
1124    
1125    checkpoint58x_post
1126    o IO option for global-file compact format:
1127      - add options when generating topology (utils/exch2/matlab-topology-generator)
1128      - add I/O capability (pkg/mdsio).
1129      - adapt utils/matlab/rdmds.m to read this format.
1130      for now long-line format not yet supported by pkg/mdsio (& exch2).
1131    o shelfice: add a few diagnostics
1132    
1133    checkpoint58w_post
1134    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1135      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1136      (and replace horiVertRatio in NH code).
1137      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1138                         and tutorial_plume_on_slope (sensitive to truncation)
1139    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1140      directly to drive seaice model (C-grid only)
1141    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1142     - reintroduce computation of wind from stress,
1143     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1144       mass points to avoid tau = 0
1145     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1146    o rdmnc.m: make it work with "global" files created with gluemnc
1147    o rdmnc.m : some improvements in dealing with singleton dimension
1148      (tested on all testreport mnc output files).
1149    o genmake2: disable pkg/profiles if netcdf test fails.
1150    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1151    o move call to cal_readparms up to make calendar parameters/variable available
1152      to all packages
1153    
1154    checkpoint58v_post
1155    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1156      useDynP_inEos_Zc tested.
1157    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1158    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1159      and portions thereof.  See read_cs.txt for description and examples.
1160    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1161      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1162      following the great-circle arc between those 2 points.
1163    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1164      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1165    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1166     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1167     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1168     - still needs work (not working with some options ; efficiency to improve)
1169       and serious testing.
1170     - use this scheme for temperature & salinity in 2 advection test exp.:
1171       advect_xy & advect_xz, respectively.
1172    
1173    checkpoint58u_post
1174    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1175    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1176    o testreport: add option "-skipdir" to skip some test.
1177    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1178      momentum calculation.
1179    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1180    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1181      remove checkpoint.F and the_correction_step.F (no longer used);
1182      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1183    o add option (linFSConserveTr) to correct for tracer source/sink due to
1184      Linear Free surface
1185    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1186    o pkg/thsice: fix reading mnc-pickups
1187    
1188    checkpoint58t_post
1189    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1190    o pkg/mdsio:
1191     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1192       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1193       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1194     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1195     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1196       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1197     - new S/R (to replace MDSWRITEMETA), which allows to write more
1198       informations (variable names, time ...) to meta files.
1199     - modify rdmds.m to give back the meta file content.
1200    o pkg/diagnostics: change vertical interpolation to be safer, and more
1201       flexible (define p-levels to interpolate to in data.diagnostics);
1202      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1203       diagnostic pointer.
1204    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1205    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1206    o fix multi-category seaice:
1207     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1208       SEAICE_MULTICATEGORY
1209     - fix short wave heat flux
1210    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1211       and allow to use EVP solver. Change forward lab_sea: test both EVP
1212       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1213    o Initial check-in of lab_sea adjoint
1214      (very similar to natl_box_adjoint/code_seaice)
1215      * used C-grid and EVP solver
1216      * used KPP, GM/Redi
1217      * uses inAdExact=.TRUE.
1218      * gradient checks fail for both ADM and TLM
1219        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1220        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1221        issue is related to forward mismatch between g77 an ifort
1222    o pkg/seaice: overhaul of thermodynamics
1223     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1224     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1225     - move a few global fields out of SEAICE.h into seaice_growth.F and
1226       make them 2D (FICE/QNETO/ ...)
1227     - remove FO (it is the same as QNETO)
1228     - introduce a few local fields to avoid modifying external fields such
1229       as atemp, etc.
1230    
1231    checkpoint58s_post
1232    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1233      changed exf_set_gen.F so that
1234        genperiod=0 means input file is one time-constant field and
1235        genperiod=-12 means input file contains 12 monthly means
1236    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1237      this affects truncation error ; generate new output file for exp. which
1238      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1239        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1240        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1241        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1242        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1243        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1244    o start implementation of deep-atmosphere and anelastic formulation
1245    o verification: remove 2nd copy of input files and use script "prepare_run"
1246      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1247    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1248    o profiles: fix for multithreaded case
1249    
1250    o diagnostics: rename few diags:
1251      s/'PRESSURE'/'RCENTER '/g
1252      s/'TICE    '/'oceFreez'/g
1253      s/'TAUX    '/'oceTAUX '/g
1254      s/'TAUY    '/'oceTAUY '/g
1255      s/'SWFLUX  '/'oceQsw  '/g
1256      s/DIFx/DFxE/g
1257      s/DIFy/DFyE/g
1258      and add few ocean-forcing diagnostics:
1259      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1260    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1261      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1262      as actual snow thickness.  It now refers everywhere to effective snow
1263      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1264    
1265    checkpoint58r_post
1266    o modifications to pkg/seaice/growth.F, which change results of
1267      lab_sea experiment: fixes pertain to melting snow over open water, to
1268      masking EVAP under sea ice, and to using the correct AREA variable for
1269      computations of EVAP, PRECIP, HSNOW, and GHEFF
1270    o add ability to read bathy, salt, and theta using MNC (off by def)
1271    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1272      both are turned off by default and do no change any results
1273    o seaice advection with pkg/thsice: a step toward the use of non-linear
1274      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1275    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1276      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1277      in natl_box (affects results @ truncation level: update output.txt)
1278    o multi-threading and IO:
1279      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1280      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1281        (needed to work with SingleCpuIO): tested in all verif. exp.
1282    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1283      affects the results (but none of the verification test uses this scheme).
1284    o Adding some pkg/diagnostics capability to pkg/seaice
1285      (will certainly be subject to changes)
1286    o ctrl: adding new control variables:
1287      lwflux, lwdown, evap, snowprecip, apressure, runoff
1288    
1289    checkpoint58q_post
1290    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1291      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1292      high_res_cube configuration by 4% on Columbia.
1293    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1294      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1295      dynamical allocation (seems to work in multi-threaded).
1296    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1297      single CPU io) so that TAF does not have to see EESUPPORT.h
1298    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1299    
1300    checkpoint58p_post
1301    o obcs: stop if obcs is used with useCDscheme = .true.
1302    o shelfice:
1303     - fix a sign error so that no slip at shelfice interface works
1304     - remove stop for combination non-hydrostatic code and shelfice. That does
1305       not mean, that the results are correct, but at least they are numerically
1306       stable
1307    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1308    o added adjoint exch routined for all exch*3d* routines
1309      and updated flow directives
1310    
1311    checkpoint58o_post
1312    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1313      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1314    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1315      and clean-up reading/writing of pickup files.
1316    o fix local version of read/write pickup (NH part) in rotating_tank/code
1317    o simplify EXCH interface:
1318     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1319     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1320    o added the regrid package
1321    o shelfice:
1322     - add a simple boundary layer scheme to reduce noise
1323     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1324    
1325    checkpoint58n_post
1326    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1327       local variable (not in common block).
1328    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1329      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1330      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1331        to work with SingleCpuIO.
1332    o add "_d 0" to real constant of pkg/cfc subroutines ;
1333       update exp. cfc_exemple & tutorial_cfc_offline output files.
1334    o multi-threading and IO:
1335      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1336        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1337      - barrier before and after reading.
1338      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1339      - avoid using MDS_WRITELOCAL for LAND pkg output.
1340      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1341        common-block variables ; Allows multi-threading with master-thread IO.
1342    o change default MAX_NO_THREADS from 32 to 4 ;
1343      and stop cleanly when MAX_NO_THREADS is too small.
1344    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1345    
1346    checkpoint58m_post
1347    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1348       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1349    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1350       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1351       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1352    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1353        add MITgcm_tutorials (= code + all the tutorials)
1354    o ecco, option to compute cost for total ssh (mean+anom)
1355    o consistent with addition of ptracer and ssh in pkg/profiles
1356    o profiles: adding ptracer and ssh
1357    o testreport: change multi-test output-file name
1358      (from output.txt.{name} to output.{name}.txt)
1359    o profiles: now ok for mutli-tiles case
1360    o seaice: add 4 parameters for different advection schemes for area,
1361      (effective) seaice thickness, enthalphy, and snow height. Their default
1362      is the standard parameter SEAICEadvScheme
1363    o calc_gw:
1364     - add cosFacU in zonal viscous flux (harmonic.visc.).
1365     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1366       of tutorial_plume_on_slope.
1367    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1368    o calc_gw: true flux-form, account for horizontal grid spacing.
1369      update rotating_tank results, but not plume_on_slope (affected at
1370      truncation level, 11 digits).
1371    
1372    checkpoint58l_post
1373    o calc_gw:
1374     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1375     - remove side-drag for now (need to fix it); update plume_on_slope results.
1376     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1377    o commit code to make SST/SSS weights spatially variable
1378      (based on either variable in-situ or variable initial T/S weights)
1379    o pkg/ecco:
1380      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1381        now based on horizontally varying weights wthetaLev, wsaltLev
1382      * cost_averagesflags now returns year indices in addition to day, month
1383      * sflux balance is performed on annual basis
1384        (sflxumm, sfluxmm2, bal_sfluxmm)
1385      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1386        including separate counting and multipliers
1387    o pkg/rbcs
1388      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1389    
1390    checkpoint58k_post
1391    o testreport:
1392     - always build in dir. "build" (if not there, mkdir build instead of building
1393       & running in input)
1394     - run in dir run (if it exists), in build otherwise.
1395     - call prepare_run (if input/prepare_run exists)
1396     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1397    o pkg/exf modifications to interpolation and rotation routines for more
1398       reasonable treatment of North Pole singularity: for tracers North Pole
1399       value is set to northernmost zonal-mean value, for zonal velocity it is
1400       set to zero, and for meridional velocity it is set to northernmost value.
1401    o pkg/exf/exf_check_range.F
1402     - add tile index to diagnostics and move stop statement to the very
1403       end of the routine.
1404    o pkg/diagnostics: (diagnostics_main_init.F)
1405      define title of isomorphic variables according to the current config.
1406    o pkg/thsice with pkg/seaice dynamics:
1407    - fix domain of computation (interior only, required for exf) and do exchanges
1408    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1409    o towards a standard way of dealing with multi-threading in MONITOR
1410      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1411    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1412       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1413    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1414    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1415    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1416       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1417    o tracer advection:
1418     - clean-up and simplify calc_common_factors.F
1419     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1420       advection subroutine (but still not used within DST advection S/R)
1421    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1422    
1423    checkpoint58j_post
1424    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1425      from file (collects calls previously in FORWARD_STEP)
1426    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1427    o adjoint store dir. adjusted accordingly
1428    o genmake2
1429      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1430    
1431    checkpoint58i_post
1432    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1433      on wind stress (SEAICEstressFactor defaults to 1.)
1434    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1435      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1436    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1437      on CS-grid: no longer loosing mass.
1438    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1439    o pkg/ggl90: fix sloppy output and fix a bug
1440    o pkg/seaice: added SEAICEuseEVPpickup parameter
1441      - Set to false in order to start EVP solver with
1442        non-EVP pickup files when using SEAICEuseEVP
1443      - fix sign error in diffusion in seaice_calc_rhs
1444    
1445    checkpoint58h_post
1446    * Modifications for bottom topography control
1447      o replace hFacC by _hFacC at various places
1448      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1449      o add non-self-adjoint cg2d_nsa
1450      o update autodiff support routines
1451      o re-initialise hfac after ctrl_depth_ini
1452      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1453    * Adding verification for 5x5 box (4-layer) bottom topography control
1454    
1455    checkpoint58g_post
1456    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1457       used for mean seasonal cycle, mean diurnal cycle); add an example
1458       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1459    o pkg/ggl90:
1460      - add parameter (minimum surface kinetic energy)
1461      - fix bug (avoiding division by zero)
1462    o couple pkg/thsice to pkg/seaice:
1463      - modify advection in seaice to accomodate new scalar fields to be advected
1464      - only muliDimAdection scheme work with seaice/thsice
1465      - mapping of thsice-variables to seaice-variables, back and forth
1466      - does not break the verification experiments, but does not give the
1467        desired results either
1468    o pkg/seaice
1469      - make (default) second order advection a bit less confusing?
1470    
1471    checkpoint58f_post
1472    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1473      to pkg/seaice):
1474      - new routines thsice_map_exf and thsice_get_exf provide the interface
1475      - add an additional formal parameter to thsice_solve4temp
1476    o pkg/exf:
1477      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1478      - correct Stefan-Boltzmann constant
1479      - new parameter for longwave surface emittance
1480      - separate some stuff from exf_bulkformulae into new routines  
1481        exf_radiation, exf_wind
1482      - add new parameters and constants: longwave emissivity for ocean, ice
1483        and snow, evaporation parameters over ice
1484      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1485        either wind from stress or stress from wind
1486    o pkg/thSIce:
1487    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1488    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1489       and THSICE_CALC_THICKN
1490    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1491    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1492      to make debugging easier.
1493    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1494    o pkg/bulk_force:
1495      - clean-up comments and parameters ;
1496      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1497    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1498      generate new output for test-experiment: aim.5l_cs.thSI
1499    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1500      testreport accordingly
1501    
1502    checkpoint58e_post
1503    o SEAICE_CGRID adjoint done
1504    o R_STAR adjoint implemented.
1505      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1506      * need to sort out init. of h0facc, etc.
1507    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1508      to be able to use it in pure forward.
1509    
1510    checkpoint58d_post
1511    o upgrade simple test-experiment to tutorial example:
1512     step.1: duplicate the experiment and (step.2) will remove the old copy.
1513      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1514      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1515      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1516      tutorial_global_oce_biogeo    <- copy of dic_example
1517      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1518      tutorial_plume_on_slope       <- copy of plume_on_slope
1519      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1520      tutorial_global_oce_optim     <- empty for now (David ?)
1521      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1522     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1523    o correct a sign problem in cost_scat.F
1524    o obcs and ptracers: fix boundary conditions for advections schemes
1525      with larger stencil
1526    o thsice adjoint: start
1527    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1528      completeness
1529    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1530      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1531    o ptracers adjoint:
1532      * avoid extensive recomputatations
1533      * fix missing re-init. of gptr (missed by TAF)
1534    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1535      me to turn off the excessive output to STDOUT that this package produces
1536    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1537      and add those terms in Vector-Invariant formulation.
1538    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1539      if the control period (xx_hfluxperiod etc) is 0
1540    o in profiles pkg, clean routines and fix details
1541    o in ecco pkg, reading ssh data:
1542      fix problem in case the model does not start at iter0=0
1543    o fix mnc-pickup/restart for ptracers
1544    o new package prifiles:
1545      code to compute profile-based cost by Gael Forget
1546      (modifs in ecco, ctrl, autodiff)
1547    o Benign bug fix in initialization (spotted by M. Mazloff) of
1548      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1549    
1550    checkpoint58c_post
1551    o adjoint: finish NLFS adjoint and provide reference output in
1552      verification/global_ocean.90x40x15/results_ad_nlfs
1553    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1554      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1555      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1556      with SEAICE_CGRID defined.
1557    o move calendarDumps from "data" to "data.cal" and clean-up the code
1558      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1559    o add useEXF & useCAL flags (for now, set in hard-coded way)
1560    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1561      (were missing in NH mode, and wrong in quasihydrostatic mode).
1562      waiting for Chris updated version of calc_gw to add those CALLs.
1563    o fix bug in quasihydrostatic S/R ;
1564      add a test for this option: global_ocean.90x40x15.qshyd
1565    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1566      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1567    o add on/off flag useOffLine for package OFFLINE
1568    o seaice:
1569      - modify advection so that it works also on the C-grid
1570      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1571        problem in multi-tile runs with C-grid
1572      - add flags for clipping ice velocities and/or masking solver forcing
1573      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1574        C-grid solver
1575      - added a few comments to seaice_diffusion.F
1576      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1577        are now exclusive)
1578      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1579        required re-ordering the code a little:
1580       + make DAIRN global variable (defined in SEAICE)
1581       + move computation of the viscosities eta and zeta into a new separate
1582         routine (because I need to recompute them in seaice_ocean_stress.F)
1583    
1584    checkpoint58b_post
1585    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1586      update output.txt of exp. aim.5l_cs.thSI
1587    o various mnc cleanups and improvements:
1588      + shrink lookup tables by factor of ~4
1589      + better error reporting when running out of lookup space
1590      + able to handle longer path/file names (up to 500 chars)
1591    o adjoint:
1592      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1593      - TBD: "hidden" mom_vecinv recomp. in dynamics
1594    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1595     (allow to differentiate between forcing components using new integer flags:
1596      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1597     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1598    o ecco
1599      - enable trend removal from SSH anomaly obs.
1600    o adjoint
1601      - a fix for PmEpR when #undef EXACT_CONSERV
1602      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1603      - try to fix "hidden" recomp. in forward_step for NLFS
1604        (NLFS seems broken sometimes after I checked it in)
1605    o seaice:
1606     - add c-grid version of the dynamic solver:
1607       + three new routines that are the c-grid substitute lsr, dynsolver
1608         and ostres
1609       + put a few fields that were local to dynsolver into global common
1610         blocks, so that I can move the computation of stresses etc into
1611         seaice_lsr (saves coding but may break the adjoint).
1612     - replace more hardwired parameters by runtime parameters
1613     - add ice masks that mask the rhs of the implicit solvers where there
1614       is no ice (commented out in seaice_dynsolver, because i am not sure
1615       if this works properly), eventually this should replace the clipping
1616       of ice velocities in seaice_dynsolver to +/-40cm/s.
1617    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1618      include it only where its needed
1619    o move balancing of fluxes before the call of external_forcing_surf
1620    o seaice:
1621      - correct units of turning angles (now they are really in degrees)
1622      - move computation of GWATX/Y out of main routine into dynsolver
1623      - initialize GWATX/Y in seaice_init
1624    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1625      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1626    o seaice: add runtime flags for turning angles (default to zero)
1627    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1628      and trend from exf forcing and ctrl control adjustments
1629    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1630      (since checkpoint57x_post)
1631    o change the default rotation period to 86164.s = the Earth rotation
1632    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1633      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1634    o seaice advection: add code for choosing between the default (2nd order
1635      central differences) and multiDim advection schemes provided by
1636      pkg/generic_advdiff
1637    o seaice:
1638      - removed all references to SEAICE_GRID.h fields from
1639        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1640        (cubed-sphere configuration will change a little)
1641      - grid computations in seaice_init are obsolete now.
1642      - cleaned up code a little so that is easier to read (hopefully).
1643      - added new (better?) discretizations of default advection and diffusion
1644        (turn on with SEAICEuseFluxForm)
1645      - replace 1 in 3d global fields by kSurface in growth.F
1646      
1647    checkpoint58a_post
1648    o seaice:
1649      - bug fix in advect.F
1650    o shelfice:
1651      - separate shelfice load anomaly from pload (breaks with time
1652        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1653        Its default is 0., but it may be computed more cleverly from (unknown)
1654        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1655        done offline. A good approximation of the pressure load anomaly is
1656        necessary to avoid large initial adjustment processes underneath
1657        deep-reaching shelfice.
1658      - small fix in ISOMIP shelfice_thermodynamics
1659      - add more sophisticated thermodynamics of Hellmer (1989), this is
1660        now the default
1661      - give a few constants more intuitive names
1662    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1663      if bulk formulae are used in long integration (especially EmPmR). Turn
1664      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1665      if balancePrintMean, the imbalance that is substracted is printed to
1666      STDOUT.
1667    o fix bug (typo) in obcs_apply_eta.F
1668    o add a new package shelfice which enables us to model the circulation
1669      underneath shelf-ice with draughts of hundreds of meters.
1670     - works
1671     - to do: + include improved thermodynamics
1672              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1673                instead of new field kTopC
1674              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1675                instead of new field R_shelfIce and new code in ini_depth.F
1676                and ini_mask_etc.F?
1677              + adjust vertical mixing schemes?
1678    o seaice pkg:
1679     - add a cpp-flag to include a simple formula for a salinity dependent
1680       freezing point of sea water at the surface
1681     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1682       meridional stresses are now different (and hopefully correct)
1683    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1684       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1685       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1686    o pkg/diagnostics: add options and parameters for regional-statistics
1687       diagnostics ; define regions by reading a region-mask from a file
1688       (might add other options later)
1689    o pkg/bulk_force:
1690     - add option and parameters to use AIM surface-flux formulae.
1691     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1692       others forcing fields (defined in PARM05, parameter file "data") are loaded
1693       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1694     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1695     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1696     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1697       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1698     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1699    
1700    checkpoint58
1701    o add "--embed-source" option to genmake2 which, when the supporting
1702      tools can be compiled (as determined by genmake2) will turn on the
1703      embed_files package which then embeds the entire MITgcm source code
1704      (*.[fFhc] + Makefile) used for the build within the executable
1705      - requested by CNH but off by default
1706      - adds a paltry <9MB to the mitgcmuv executable in most cases
1707      - only writes the output when useEMBEDSRC in eedata is true
1708    o clean up 3-dim. relaxation codes:
1709      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1710      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1711      * Thanks to Tom Haine for testing!
1712    
1713    checkpoint57z_post
1714    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1715      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1716    o fix the pickup behavior for obcs in combination with ptracers
1717    o fix a bug in ptracers_external_fields_load
1718    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1719      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1720    o transfered surface NH pressure to eta field (if exactConserv).
1721    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1722         and update lab_sea output.txt file.
1723    o completing 3-dim. relaxation code: additional term
1724         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1725      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1726      * At compile time, in "EXF_OPTIONS.h" set
1727          #define  ALLOW_CLIMTEMP_RELAXATION
1728          #define  ALLOW_CLIMSALT_RELAXATION
1729      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1730          tauThetaClimRelax3Dim = 15552000.0,
1731          tauSaltClimRelax3Dim  = 15552000.0,
1732      * 3 cases:
1733          1) Use a constant-in-time 3-dim. field
1734          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1735          3) Real-time relax. to time-evolving prescribed field
1736    o Adding Laplacian-type smoothness constraint on
1737      initial and boundary (forcing) controls (ic, bc)
1738      * enable at compile-time via
1739        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1740      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1741      * Absolute scale somewhat unclear so far
1742      * no area weighting was included since no other cost term does so far
1743    
1744    checkpoint57y_post
1745    First step for a NLFS adjoint
1746    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1747    o new init. routines for calc_r_star, calc_surf_dr
1748    o still need to deal with ini_masks_etc
1749    o testreport seemed happy
1750    checkpoint57y_pre
1751    
1752    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1753    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1754    o add new offset feature to offline pkg (plus minor cleanup)
1755    o cfc fixes for final year of integration
1756    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1757      be in GCHEM_OPTIONS).
1758    
1759    checkpoint57x_post
1760    o fix testreport Pb in multiple test experiment.
1761    o cleanup our namelist syntax in verification:
1762      - make it more F95 standards compliant (some work still needed)
1763      - allows the vast majority of our tests to work with gfortran
1764    o Non-Hydrostatic:
1765     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1766     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1767    o Allow to apply AB on T,S rather than on AB(gT,gS):
1768     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1769     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1770       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1771     - need a "clever" read_pickup to restart from the other AB formulation
1772    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1773    o remove some unused variables (reduces number of compiler warnings)
1774    o adjoint
1775      * Disable useVariableViscosity for adjoint for time being
1776        (there are a number of extensive recomputations)
1777      * Initialize certain variables needed for adjoint
1778    
1779    checkpoint57w_post
1780    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1781                 fix the singleCpuIO RS version of MDSWRITEFIELD
1782       and add a WARNING if using globalFiles=T with multi-processors.
1783    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1784      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1785    o tracer advection scheme:
1786      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1787       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1788       was not very convenient).
1789      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1790       (further tests needed for the implicit DST & Flux-Limiter schemes).
1791    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1792      and sRef for convenience, handy, when you want to initialize
1793      ptracers in a large domain with a constant non-zero value. Also,
1794      untangle ptracers_init.F a little.
1795    
1796    checkpoint57v_post
1797    o change dome exp. to use variable viscosity in side-drag terms.
1798    o remove all the files from the cfc_offline test since they are now
1799      incorporated into tutorial_cfc_offline which has been producing
1800      identical results for a few days of testing
1801    o add new parameter: sideDragFactor to enable half-slip-side BC
1802      and change side-drag S/R to use viscosity from mom_calc_visc
1803      (can switch back by setting sideDragFactor=0.); affects results at
1804      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1805       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1806    o vorticity & strain are now computed without masking, to account for
1807      no-slip-side BC in variable viscosity calculation ; mask is applied
1808      anyway later on, before computing advection/coriolis terms.
1809    o modify exp4 to test new obcs support for reading from external files
1810      and for passive tracers
1811    o fix behavior of ptracers_monitor when monitor output is written to a
1812      netcdf-file; still not independent of monitor.F (writes in the same
1813      file).
1814    o change default value of tRef (put a uniform, meaningful value for ocean
1815      & atmos) and initialize sRef (was missing, as Martin mentioned).
1816    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1817      to be proportional to enstrophy dissipation length.  Thus,
1818       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1819      This is now consistent with Smagorinsky and with the manual.
1820    
1821    checkpoint57u_post
1822    o OBCS and PTRACERS: add open boundary support for passive tracers
1823      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1824        OB-values from file; this is not different from the way theta and salinity
1825        are treated
1826      - however, Orlanski-radiation conditions are not supported, and the model
1827        will stop if you use pTracers and Orlanski at the same time.
1828      - beefed up the rountine obcs_external_fields_load: now only those open
1829        boundary values are overwritten with values from files for which there
1830        are really files, otherwise the OB-fields remain untouched. This makes
1831        it possible to use different OBs at different ends of the domain (as
1832        with EXF)
1833    o reduce number of exch calls in shap_filt (s2).
1834    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1835      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1836    
1837    checkpoint57t_post
1838    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1839    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1840      same truncation, independent of the face number: affects affects several
1841      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1842    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1843      note that biharmonic viscosity + no-slip was not tested in any experiment.
1844    o fix bug in non-linear free-surf side-drag ; generate new output for
1845      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1846    o make mnc honor the writeBinaryPrec flag for most kinds of output
1847    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1848    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1849      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1850    o add brackets in multi-terms sum to get same truncation, independent of
1851      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1852      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1853    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1854      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1855      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1856      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1857      Suggested values of viscosity parameters found in mom_calc_visc.
1858      Many new viscosity diagnostics available.
1859    
1860    checkpoint57s_post
1861    o Add clearing-house for viscosity calculations, mom_calc_visc and
1862      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1863      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1864      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1865      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1866      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1867      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1868      ViscAhStrain and viscAhTension are now retired.
1869    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1870    o In response to JMC's bug report, genmake2 now ignores any soft-links
1871      that it finds in the *current* directory when searching for files.
1872      Soft-links found in any other source directories will still work as
1873      they did before.
1874    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1875      a C routine to unlimit the stack size
1876    o mnc-ify pkg/aim snapshot vars
1877    o mnc-ify pkg/land as requested by Daniel
1878    o various changes to mnc including:
1879      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1880      - output can now be grouped so that all files within a group
1881          change the ITER portion of their names in lock-step together
1882      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1883          and works with both EXCH1 and EXCH2 (but needs more testing)
1884      - writing works for all verification test cases w/ g77 on Linux
1885    
1886    checkpoint57r_post
1887    o make MNC variable initialization happen earlier
1888    o add diagnostics for (almost) each term of the momentum Eq.
1889    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1890    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1891    o remove MINIMAL_TAVE_OUTPUT option ;
1892      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1893    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1894      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1895    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1896    o add time-dependent SST, SSS control
1897    o cost terms in ecco/ modularized (new cost_generic.F)
1898    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1899    o new infrastructure for seaice model vs. obs misfits in seaice/
1900      * driver from the_main_loop.F is seaice_cost_driver.F
1901      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1902      * gradient check in Exp. 6a of natl_box_adjoint/
1903    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1904      (see README file)
1905    
1906    checkpoint57q_post
1907    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1908    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1909      - bug was reported by Jean-Michel and Ian Fenty
1910    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1911      update exp. cpl_aim+ocn output.
1912    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1913      Needed for high-res. runs with large global files
1914      to be able to limit tapelev size
1915    o Changed some tests for adjoint:
1916      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1917      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1918      * global_ocean.90x40x15/ back to default 3-level checkpointing
1919    o Modifications to enable scripted COMMON to MODULE conversion
1920      * verification/OpenAD/code/ has necessary scripts and description;
1921      * converts, compiles and runs successfully;
1922    
1923    checkpoint57p_post
1924    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1925    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1926      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1927    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1928    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1929      (was already the case for dissipation with mom_vecinv,
1930       and also the case for grad.PhiHyd when staggered-timeStep)
1931      This will allow to put dissipation out-off the AB time-stepping.
1932     Unfortunately, affects truncation error. Update output of exp. that "fails"
1933      (cg2d matching number) and leave the others for later: front_relax(10),
1934      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1935      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1936    
1937    checkpoint57o_post
1938    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1939      (2) its ready to be documented during the 20050801 DocFest
1940    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1941      for ideal_2D_oce and lab_sea on linux_ia32_g77
1942    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1943      in global1x1_tot/code_seaice_adj to access indices 32, 33
1944      (worth another tag)
1945    
1946    checkpoint57n_post
1947    o adding precip control xx_precip 32
1948    o adding swflux control xx_swflux 33
1949    o Replacing 10 forcing penalty cost routines by 1 generic.
1950    o Implementing partitioning in time-mean and variable adjustment
1951      for atmos. state.
1952    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1953    o in natl_box_adjoint:
1954      * updated exp 1 to 10
1955        (but does not have time-mean vs. variable split results yet)
1956    o updated global1x1/*_seaice_adj/
1957      to incorporate latest changes
1958    o enable useSingleCpuIO for mdsio vector routines
1959      (applies in particular to tapelev I/O)
1960    o removed inefficient K-loop in all active_file*control*.F
1961    
1962    checkpoint57m_post
1963    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1964      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1965    o pkg/exch2: filling of face-corner halo regions is optional
1966      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1967    
1968    checkpoint57l_post
1969     tag before updating tutorials (pre-release-2)
1970    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1971       for output and interpolation of input fields onto model grid)
1972    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1973       Affects results of exp. rotating_tank ; update output.txt.
1974    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1975          and taking the square quantity and/or using a fraction-weight field.
1976    o fix aim_diagnostics_init.F mate numbers.
1977    o add mnc output capability to diagnostics/diagstat and update
1978      our cvsignore files for the ACSII output generated
1979    
1980    checkpoint57k_post
1981    o lab_sea now uses diagnostics package and provides a suite of
1982      new EXF diagnostics output.
1983    
1984    checkpoint57j_post
1985    o exf
1986      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1987        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1988        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1989      * extended diagnostics output
1990        - now includes all EXF variables
1991        - hs, hl moved to common block
1992        - separate S/R for diagnostics, called after ctrl vector is added
1993        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1994        - EXFqnet contains true Qnet (i.e. includes qsw)
1995      * updated verif. lab_sea, global_with_exf
1996      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1997        to ensure that diagnostics sees a true EXFqnet
1998    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1999    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2000      several times with different frequencies.
2001    o mnc-ify the thsice package as requested by Daniel Enderton
2002      - the monitor--MNC output needs work
2003      - many attributes need to be added (most are currently blank)
2004    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2005      - many attributes need to be added (most are currently blank)
2006    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2007    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2008    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2009      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2010         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2011    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2012     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2013    
2014    checkpoint57i_post
2015    o Diagnostics package was changed: diagnostic allocation is now deactivated
2016      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2017    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2018      add 1rst Order upwind vertical Shear.
2019    o add a quick fix for A/B checkpointing in OFFLINE mode
2020    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2021      end-run around the C/Fortran linking horror in eesup/src/timers.F
2022    o added pkg/runclock: allows user to terminate run based on wall clock
2023    o added non-hydrostatic scaling parameter: nh_am2
2024    o pkg/my82: futile attempt to make results compiler-independent by adding
2025      some "_d 0", etc. no effect.
2026    o for mnc output, fill the 'T' coordinate var with myTime and create a
2027      separate 'iter' variable for iteration count
2028    o pkg/diagnostics:
2029      add new capability: output of Global/Regional & per-level statistics ;
2030      tested against monitor output (including land & thSIce) on various exp.
2031    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2032    
2033    checkpoint57h_done
2034      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2035      data.diagnostics, data.gchem, data.ptracers) is done.
2036    
2037    o pkg/diagnostics: prepare for Global/Regional statistics.
2038      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2039    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2040      and rename it: DIFFERENT_MULTIPLE
2041    
2042    checkpoint57h_post
2043    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2044    o pkg/diagnostics: change output frequency, now in seconds (instead
2045      of Nb of iterations). This requires to change data.diagnostics.
2046    checkpoint57h_pre
2047    
2048    o in mnc, let the user create the output dir if both mnc_outdir_date
2049      and mnc_outdir_num are false
2050    o add fflags() to pkg/diagnostics which allows one to specify, on a
2051      per-file basis, the file precision [default behavior is unchanged]
2052    o added diagnostics to pkg/kpp, including computation of mixed layer
2053      depth based on a temperature/density criterion
2054    o updated verification/natl_box to test the new pkg/kpp diagnostics
2055    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2056    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2057    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2058      not mnc -- this mistake was found by JMC and is now corrected
2059    
2060    checkpoint57g_post
2061    o add Adams-Bashforth 3rd Order time stepping:
2062      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2063      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2064    checkpoint57g_pre
2065    
2066    o make lambda[Theta,Salt]ClimRelax spatially varying
2067      (default remains spatially uniform constant based on tau)
2068    o added new control variables
2069      * init. uVel, vVel, etanN
2070      * lambda[Theta,Salt]ClimRelax
2071    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2072      (suggested by G. Forget)
2073    
2074    checkpoint57f_post
2075    o add parameter "baseTime" = model base time = time at iteration zero
2076      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2077      account for baseTime shift
2078    o move Coriolis arrays from PARAMS.h to GRID.h
2079    checkpoint57f_pre
2080    
2081    o mnc-ifying the seaice package
2082    o introduced an alternative length scale calculation for use in the limiting
2083      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2084    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2085    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2086      as well as grad(vort3).  Made it compatible with both approximate form
2087      for the cubed sphere and full form of these gradients.  Added flag
2088      useFullLeith to select between approximate and full form.  
2089    o add "d0" in getcon.F to reduce differences between compilers/platforms
2090      update output.txt of exp. fizhi-gridalt-hs
2091    o change port_rand funtion to allow to set the seed.
2092    o fix obscure MNC bug involving conversion between reals and integers
2093      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2094        new version is now more standards-compliant
2095    o adjoint-related modifications
2096      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2097      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2098      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2099    
2100    checkpoint57e_post
2101    o Adding eddy stress controls a la Ferreira et al.
2102    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2103    
2104    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2105      update output.txt of exp. fizhi-gridalt-hs
2106    o add more "Z" dimensions and associated coordinate vars to MNC
2107    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2108    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2109      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2110      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2111      months and years.  Requires pkg/cal.
2112    o diagnostics: add pickup functionality
2113      - off by default for backwards compatibility
2114      - current version only uses MDSIO -- MNC will be added
2115    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2116    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2117    
2118    checkpoint57d_post
2119    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2120    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2121      output from the diagnostics package
2122    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2123    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2124      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2125    o add coordinate variables to the MNC output from the diagnostics package
2126    o change MNC-flags default value: true when useMNC=TRUE
2127    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2128      the ability (off by default) to read the grid information using MNC
2129    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2130    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2131    o do snap-shot diagnostics at the middle of the time-interval (instead of
2132      at the end).
2133    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2134      new test for AIM with thSIce + slab-ocean
2135    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2136    o move state variable diagnostics to the beginning of the time step ;
2137      (note: still needs some work specially for snap-shot diagnostics)
2138      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2139    
2140    checkpoint57c_post
2141    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2142    o generate new output.txt files on faulks with g77 & the new -ieee option
2143    checkpoint57c_pre
2144    
2145    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2146      update output.txt of exp. global_ocean.90x40x15
2147    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2148      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2149    o add saltFlux(+File) forcing capability with periodicExternalForcing
2150    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2151    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2152    o improvements for the MNC output from DIAGNOSTICS:
2153      - correct handling of the unlimitied dimension
2154      - all dims now have associated coordinate variables
2155      - variables located at U, V, and Corner ("Z") points are now written
2156        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2157        *all* data points are output
2158    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2159    o added pkg/seaice/seaice_monitor.F
2160    o mdsio_readfield.F can now read files visible only to master MPI process.
2161    o pkg/seaice: some test code for ice-modified ocean stress
2162    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2163      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2164      spurious negative numbers for precipitation and humidity.  Will cause
2165      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2166    o pkg/ctrl/
2167      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2168        May be enabled via doPackDiag
2169      *  introduce z-scaling of
2170         + gradient (doZscalePack) and
2171         + control (doZscaleUnpack)
2172    o pkg/mdsio/
2173      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2174      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2175    
2176    checkpoint57b_post
2177    o simplify options in diagnostics_fill arguments (remove weird combinations)
2178    o fix MNC coordinate variables so that they now contain per-face index
2179      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2180      general, EXCH2 grids are only aligned to a "local" coordinate system
2181    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2182    o Implement instantaneous output within pkg diagnostics:
2183      setting a negative frequency in data.diagnostics produces
2184     "snap-shot" output (as opposed to time-average if freq > 0)
2185    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2186      NOTE: change ptracer diagnostics name: use 2 characters to work with
2187            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2188    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2189      becomes the coordinate variable for the 'T' dimension
2190    o add CF-style coordinate variables to MNC
2191      - just a first cut:  numbers are meaningless on the cubesphere and
2192        missing along the T axis but otherwise it works!
2193    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2194    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2195    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2196      this is based directly on what the model compute, so that the content of
2197      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2198    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2199    o clean up build options files for SunOS, in particular
2200      - remove -traditional from xmakedepend
2201      - change -xarch=v9 to -xarch=native for f77
2202      - restore use of make (not gmake)
2203      - add CC=gcc if using g77
2204    o changes per discussion of AM, JMC, & EH3 today:
2205      - move redundant "grid" variables out of "state" -- in preparation of
2206        creating proper CF-style coordinate variables and in recognition
2207        that any/all grid variables can be easily copied (eg. w/NCO) from
2208        the grid files into any of the other NetCDF files
2209      - *always* output grid variables with MDSIO (this will eventually be
2210        changed)
2211      - output MNC grid file if useMNC is true
2212    o every instance of _END_MASTER() has been found and replaced with
2213      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2214      preprocessors
2215    o re-arrange diagnostics pkg initialisation:
2216     - allow each package to extend the available diagnostics list
2217     - add some checking and fix small problems (multi-threaded, ...)
2218     - new S/R diagnostics_fill (replace fill_diagnostics):
2219       look through the short list of active diag. (instead of the long list)
2220       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2221    
2222    checkpoint57a_post
2223    o this set of changes restores TAMC compatibility
2224      tested for global_ocean.90x40x15 adjoint on trough
2225      (what a pain)
2226    
2227    checkpoint57a_pre
2228    o some modifs in tools/build_options for sunos
2229    o call ctrl_pack for ctrl at end for optimcycle=0
2230    
2231    checkpoint57
2232    o add horizontal bi-harmonic viscosity for vertical velocity
2233      - new parameter viscA4W (defaults to viscA4)
2234      - affects only non-hydrostatic code
2235      - to be done: no-slip lateral boundary conditions
2236    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2237    o implement Implicit Vertical advection for pTracers
2238    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2239      (implemented also for implicit vertical diffusion & advection)
2240    o OBCS: extend application of tracer open boundary conditions
2241      to a strip beyond the boundary of width Olx/Oly
2242    o add call monitor to TAF set of required calls (flow directives)
2243      and include in natl_box_adjoint
2244    o untangle a few ifdefs related to cost, ctrl, autodiff
2245      untangel a few ALLOW_ECCO_OPTIMIZATION
2246    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2247      (theta2, salt2 in ecco_cost_weights)
2248    
2249    checkpoint56c_post
2250    o OBCS as control variables
2251      - update ctrl_ad_diff.list, obcs_ad_diff.list
2252      - remove balance of obcs controls from default
2253      - fix index bug nobcs in ctrl_init
2254      - fix dummy fields filen in ctrl_pack
2255      - add dummy weights for obcs
2256    o lsopt: comment out fort.94 output
2257    o optim:
2258      - remove unnecessary header files
2259      - adjusted namelists
2260      - add xerbla.F to Makefile
2261    o exf:
2262      - multiple modifications of exf_check_range
2263      - unit change in exf_init_runoff from [m/year] to [m/s]
2264    o mdsio:
2265      - i/o-vector change debugLevel from debLevA to debLevB
2266    
2267    checkpoint56b_post
2268    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2269      is called from DO_THE_MODEL_IO
2270      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2271      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2272      - clean up PTRACERS_WRITE_TIMEAVE a little
2273    o add another verification experiment that tests both the cfc-pkg and
2274      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2275      reactive tendencies treated inline with regular timestepping
2276    o testreport previously did a lousy job of comparing small numbers, so
2277      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2278      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2279      testreport.
2280    o ptracers_monitor: bug fix for MPI
2281    
2282    checkpoint56a_post
2283    o GCHEM: finish reorganizating the package
2284      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2285        (introduces another 3D-array for each passive tracer, but only if
2286        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2287        gchemTendency is not needed because the timestep is done separately)
2288      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2289      - GCHEM is now---more or less cleanly---separate from PTRACERS
2290      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2291        so clear to me how that should be done in a general way.
2292    o CFC: improve formatting of output in CFC_ATMOS
2293    o PTRACERS:
2294      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2295        that ALL experiments with ptracers enable can be checked. This makes
2296        GCHEM_MONITOR obsolete.
2297      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2298        monitorFreq
2299      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2300    o add PTRACERS (PTR0[1-5]) to testreport output
2301    o exf_check_range:
2302      * default changed to .TRUE.
2303      * will check values for niter0 if debLevA, every timestep if debLevB
2304      * STOP in exf_check_range if 'out of range'
2305      * range chosen generous to allow for potential extema
2306      TBD: a version with stricter range
2307           permitted range would be runtime parameters
2308  o GMredi:  o GMredi:
2309    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2310    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2313  o GCHEM:
2313    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2314      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2315    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2316      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2317        this flag is now only visible within GCHEM-pkg routines.
2318      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2319        be replaced by a 3D array that is computed before thermodynamics; for
2320        this, the tracer ID iTracer had to be included into the parameter list
2321        of ptracers_forcing
2322      - set up forward_step to call gchem_forcing, that will replace
2323        gchem_forcing_int in ptracers_forcing
2324      - cleaning up
2325  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2326    
2327  checkpoint56  checkpoint56
# Line 229  o add two new packages Line 2540  o add two new packages
2540    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2541    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2542      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2543      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2544  o add offline package  o add offline package
2545  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2546    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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