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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1114 by jmc, Mon Jun 1 14:22:57 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/mdsio:
8  o moved ptracer ctrl index 17 -> 32    - read/write tiled (local) files: read/write 1-level tile chunk at a time
9        (instead of segment of length sNx); expected to speed up tiled IO.
10    o pkg/exch2:
11      - take buffer copy from/to array out of S/R exch2_send/recv into new
12        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
13        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
14      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
15      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
16        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
17        including Topology header file (and common blocks).
18      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
19        remove 2nd exch call in exch2_s3d_rx (no longer needed).
20      - document S/R arg. list (+ update some comments)
21    o pkg/seaice:
22      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
23        of LSR (this change is expected to change the results slightly because now
24        it uses slightly difference moduli from the second last LSR solution, but
25        that is more consistent with the stress computations; this part of the code
26        is not tested in the verification experiments)
27      - fix diagnostics for flux of ice in case of B-grid
28      - turn strain rates eij and press into global fields within global
29        common block in SEAICE.h for more straighforward diagnostics
30      - fix diagnostics for principal stress components, press, zeta, eta
31        to give something meaning full
32    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
33      new output (all 4 tests) using default rotationPeriod.
34    o pkg KPP:
35      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
36      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
37        and normal grid from 1 to Nr)
38    o Fix computations of L4rdt in mom_calc_visc.F
39    o eesupp:
40      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
41      should be called before a "stop" if we know that all process are going
42      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
43    
44    checkpoint61o
45    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
46    o model/src/ini_curvilinear_grid.F:
47       compute angleSin/CosC when they are not read from a file
48    o pkg/seaice:
49       add pseudo time stepping for LSOR
50    o pkg/exch2:
51       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
52    o pkg/seaice:
53       Adding separate sea ice albedo, drag coefficients, and HO in Southern
54       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
55    o SingleCpuIO:
56       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
57    o pkg/seaice:
58       put exchanged variable in (local) common block for MPI+Multi-Threads
59       to work (necessary with exch1, and for now with exch2 too).
60    o verification: to get more experiments tested with mpi, mth and mpi+mth,
61      change tiling of:
62       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
63       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
64      update output of exp:
65       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
66       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
67      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
68                       (note: output.txt generated on faulks using only 1 tile)
69    o eesupp & mdsio (SingleCpuIO):
70     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
71       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
72       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
73     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
74     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
75       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
76    o pkg/exch2:
77     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
78       read parameter file "data.exch2" if it exists; otherwise try default regular
79       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
80     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
81       with new code (not to be used, just as a backup solution).
82     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
83       in utils/exch2/input.
84    
85    checkpoint61n
86    o eesupp & mdsio (SingleCpuIO):
87      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
88        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
89        receive real*4 array (instead of real*8) to read/write 32.bit files.
90        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
91         and remove new mapping S/R)
92    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
93      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
94        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
95        when using exch2. Add S/R to map global io-buffer to global model array.
96      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
97    
98    checkpoint61m
99    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
100      and add 3 other S/R for other types (R4,R8,RS).
101      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
102    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
103     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
104     - reduce number of macro definitions (keep only those which are used);
105       can always call directly the corrresponding S/R if needed.
106     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
107       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
108     Fixed wrong type of arg in:
109       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
110       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
111     To fix: global_sum of var in common block is wrong (multi-threaded) in:
112       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
113     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
114    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
115      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
116    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
117    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
118      edges are closed (zero depth); might happen with "blank tiles";
119      for now, disabled if using OBCS.
120    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
121      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
122    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
123      to reduce length of 1.D array print in STDOUT.
124    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
125      + use 48 tiles (16x8): this will allow to test "blank tiles".
126    o start to test MPI + multi-threaded (change testreport to skip tests
127      where number of tiles do not match).
128    o genmake2: add option "-omp" to turn on Open-MP ;
129      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
130    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
131      and keep the original tile numbering. Note: compatible with old
132      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
133    
134    checkpoint61l
135    o Overlaps had been forgotten in calculating ijk keys : fixed
136    o fix cyrus makedepend for gcc 4.4
137    o experiment fizhi-cs-aqualev20:
138      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
139      and generate new output. Note: new output is much closer to the old
140      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
141      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
142    o pkg/fizhi:
143     - change to avoid indices going deliberately over array-bounds
144     - remove unnecessary MPI stuff
145     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
146     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
147       does not go over array-bounds and therefore returns reliable output.
148     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
149       this S/R has 4 output arguments, which are used inside "get_alarm";
150       when it is called with the same variable "ndum" in place of several
151       output arguments, this produces weird side effect inside "get_alarm"
152      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
153       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
154       address) and produces error.
155    o tools/gemake2: (March 27-29 2009)
156      with option "-mpi": link *_mpi files from "MODS" dir (this is what
157      testreport does).
158    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
159    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
160       update lab_sea.lsr & lab_sea.salt_plume results
161    o pkg/seaice:
162      Major overhaul of the LSOR solver: change discretization from original
163      finite differences to finite volume. The old routine is still in the
164      file seaice_lsr.F and can be turned on with the CPP-flag
165      SEAICE_OLD_AND_BAD_DISCRETIZATION
166      Along with this change, the discretization of the strain rates is changed.
167      The same flag turns on the old discretization in seaice_calc_strainrates.F
168      All verification experiments with seaice are affected (except for
169      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
170      results by setting the above flag.
171      Further changes involve changes in defaults:
172      - ALLOW_FLOODING is defined and turned on by default
173      - SEAICEadvSnow = .true. is now the default
174      - SEAICEadvSalt = .true. is now the default
175      - SEAICEadvAge  = .true. is now the default
176      - SEAICE_clipVelocities  = .false. is now the default
177                                         (as per J. Zhang's recommendation)
178      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
179        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
180      - seaice_growth: replace computation of UG by a simple copy from wspeed
181    
182    checkpoint61k
183    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
184      seaice_lsr: fixed a few metric terms,
185                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
186                  add more debugging diagnostics
187      seaice_evp: removed superfluous many metric terms of FV discretization
188                  of stress divergence
189                  affects lab_sea, lab_sea.hb87
190      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
191                  of stress divergence for non-evp solver
192                  (this part is not tested anywhere)
193      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
194                  they were effectively only half slip
195                  affects lab_sea.hb87
196      updated all relevant verification experiments (except lab_sea//output_adm.txt
197        which was left over, but fails at level 7 & 6)
198    
199    checkpoint61j
200    o pkg/seaice: turn a few hard wired parameters into run time parameters
201    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
202      time in seconds as promised by the usints in seaice_monitor and exf_monitor
203    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
204      that are not cubed-sphere grids
205    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
206    o pkg/ctrl:
207      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
208    o non-hydrostatic (calc_gw.F):
209      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
210      update output of exp. global_ocean.cs32x15.viscA4
211    o remove backward compatibility for thetaMin,phiMin
212      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
213    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
214      interpolated wind field not only for curvilineargrid=.true., but also
215      for a rotated grid (rotateGrid=.true.)
216    o pkg/exf: add capability to bypass interpolation for runoff
217      by setting yet another CPP-flag
218    o eesupp/src, B-grid exchange:
219      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
220    o autodiff
221      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
222      allows to switch to single-prec common blocks;
223      corresponding switch occurs in tamc.h, integer isbyte
224      TAF store directivs "byte" and "kind" seem equivalent;
225      Most tamc.h have been updated correspondingly.
226    
227    checkpoint61i
228    o autodiff:
229      fix autodiff_sore/_restore indices for obcs
230      (spotted by I. Hoteit, M. Mazloff)
231    o pkg/autodiff, pkg/ctrl:
232      Add flag to reduce all tapelev I/O to single-prec.
233      In data.ctrl set
234        doSinglePrecTapelev = .TRUE.
235    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
236      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
237    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
238      real fresh water flux (not yet)
239    o pkg/mdsio & rw:
240     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
241     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
242    o pkg/flt:
243     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
244       init_fixed & ini_varia.
245     - clean-up & simplify linear interpolation S/R:
246       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
247     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
248     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
249     - add vert. coordinate & horiz. indices to output files.
250     - change vertical position in initial condition, from index to depth [m].
251     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
252       (easier to get to a curvilinear grid) ; delX,delY no longer used.
253    o pkg/ggl90: a few modifications:
254     - fix bottom boundary condition, and interpolation of KappaE
255       near top and bottom
256     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
257     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
258     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
259    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
260      (maintain temporary backward compatibility, until next checkpoint)
261    
262    checkpoint61h
263    o pkg/diagnostics with "periodic averaging diagnostics":
264      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
265    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
266    o pkg/obcs: fix loop ranges for balancing code
267    o pkg/flt:
268     - improve criteria for finding which tile owns a float.
269     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
270    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
271      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
272      with ocean biogeo)
273    o pkg/flt:
274     - do some cleaning and fix the restart ;
275     - add output.txt in flt_example/results to get this pkg tested.
276    o genmake2: add an EXTENDED_SRC option and flag.
277       for now, cannot be turned on on command line (only through genmake_local)
278    o pkg/mdsio: read/write vector:
279     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
280     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
281       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
282     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
283      (drop to 4 digits matching for grad). But this test does not look very
284      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
285    
286    checkpoint61g
287    o pkg/flt:
288      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
289       + make OPTIONS file more standard.
290      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
291      - fix _BYTESWAPIO CPP-Flag
292      - standard reading of file-parameter "data.flt"
293      - fix argument list of S/R FLT_RESTART
294      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
295    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
296    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
297      a still unfixed compiler/optimization bug
298    
299    checkpoint61f
300    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
301      update results of global_ocean.cs32x15.icedyn test.
302    o move getcon.F from model/src to pkg/fizhi.
303    o pkg/exf: add parameter for extrapolation of temp up to the surface
304       and option to prevent negative evap (in bulk_largeyeager04 only).
305    o Prather Advection scheme: fix tracer conservation for divergent flow
306      (e.g., when using NonLin Free-Surface).
307    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
308    o gmredi (Visbeck-variable-K):
309     - add more parameters to Visbeck-variable-K.
310     - use a 5 points average for dSigmaR in Visbeck-K calculation
311       (more "homogenous": same stencil and same weights as in dSigmaH)
312     - update output of ideal_2D_oce experiment.
313    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
314      (#undef REAL4_IS_SLOW)
315     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
316       coordinate variable
317     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
318       (surface forcing fields), removes some of the functionality
319     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
320     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
321       probably not all: copy _RS surface flux fields to RL field before
322       calling DIAGNOSTICS_FILL
323     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
324       real*4 (CALL EXCH_*_RS) versions.
325     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
326       (generate new output).
327    
328    checkpoint61e
329    o gmredi (Visbeck-variable-K):
330      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
331      - change computation of Visbeck-K where Slope > Smax :        
332        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
333        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
334    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
335      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
336    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
337    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
338      does not become too large (to avoid precision problems in implicit-diffusion
339      solver); update ideal_2D_oce output.
340    o pkg ggl90:
341      - in ggl90_cal.F: compute only one set of visc/diff, used to
342        step forward TKE/T/S/momentum
343      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
344        have Prandlt =1)
345    o gmredi (fm07):
346      - add lower limit on Transition layer thickness + lower limit on 1/lambda
347      - allow to set few more params from data.gmredi
348    o pkg ggl90:
349          - add missing sqrt(2) factor in computation of mixing length
350            scale in ggl90_calc.F
351            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
352    
353    checkpoint61d
354    o adjoint modifs
355      - adapt to new field rhoInSitu
356      - allow to revert from StoreDynVars2D, StoreDynVars3D
357        to individual fields
358        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
359    o store 3-D (in-situ) density in commom block (DYNVARS.h)
360     - save 1 rho computation.
361     - no longer modify T & S inland when using down_slope pkg.
362    o gad_som : allow to switch to SOM advection for T & S without corresponding
363      pickup files (using new S/R: MDS_CHECK4FILE).
364    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
365      (for useSingleCpuIO to work in multi-threaded)
366    o pkg/shelfice:
367     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
368       with SHELFICEtopoFile in data.shelfice
369     - move code for reading ice shelf topography and modifying hFacC into separate
370       subroutines of the shelfice package
371     - separate initialisation of "fixed" and "variable" variables
372     - kTopC is not (yet) replaced by kSurfC, although this is possible
373    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
374    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
375      and rename:
376      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
377      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
378    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
379    
380    checkpoint61c
381    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
382      to add mass source/sink of fluid in the interior (3-D generalisation
383      of oceanic real-fresh water flux).
384    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
385    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
386    o new pkg: down_slope
387      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
388      - presently, modify T & S inland (dwnslp_calc_rho.F).
389        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
390      - implementation for ocean in P-coords not tested.
391      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
392    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
393      (to facilitate conversion of oceanic pkg to p-coordinate).
394    o change FIND_RHO to FIND_RHO_2D :
395      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
396    o new pkg: cheapaml
397    
398    checkpoint61b
399    o exch2:
400      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
401      - no longer depend on the order sequence (N,S,E,W).
402      - 3rd exchange no longer needed (tested with 24 tiles).
403      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
404      - exch_UV_A-grid readily available (but not yet tested).
405      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
406      (both are no longer needed) in exch_uv: no effect in forward run; but
407       get truncation error differences with adjoint exch.
408    o exch2:
409     - change index-bounds storage (moved from target to local tile,
410       more intuitive this way) ; rename/remove some variables.
411     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
412    
413    checkpoint61a
414    o exch2/matlab-topology-generator:
415      fix bug in index bounds for N-S internal exchange (hard to tell if this
416      had any effect on the solution).
417    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
418      is exceeded
419    o testreport: modify syntax of awk, so that it works also with
420      awk, and not only with nawk and gawk
421    
422    checkpoint61
423    o autodiff
424      Change default for TAF usage by removing argument '-nonew_arg'
425      This changes TAF subroutine argument list (ordering of active var.)
426      Omission of this flag leads to incompatibility w.r.t. TAMC
427      To restore TAMC-compatibility, need following modifs:
428      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
429      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
430      Tested TAF version is 1.9.22
431      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
432    
433    checkpoint60
434    --->>> This is the last checkpoint for which generating the adjoint
435    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
436    --->>> by default.
437    --->>> Future checkpoints will ommit this flag by default.
438    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
439    o pkg/grdchk: Add gradient check to etan0 perturbations.
440    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
441    o pkg/autodiff: more flexibility in zeroadj.
442      model/src: modifying do_oceanic_phys.F accordingly.
443    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
444    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
445      special setup of gmredi for which the adjoint is stable
446      enough for parameter optimization.
447    o bridging the gap between eddy stress and GM.
448      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
449          along with a change in CPP option (now ALLOW_EDDYPSI).
450      -> when using GM w/ GM_AdvForm:
451          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
452          is applied either in the tracer Eq. or in momentum Eq.
453          depending on data.gmredi (intro. GM_InMomAsStress).
454      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
455      The key modifications are in model/src/taueddy_external_forcing.F
456      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
457    
458    checkpoint59r
459    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
460      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
461      fix option to read coriolis(@ cell-corner) from files with CS-grid.
462    o pkg/mnc: add some attributes to standard 1D-coordinate variables
463    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
464      mass points, when using mnc for output
465      - add runtime parameter (missing_value, missing_value_int) to override
466        default (which is the value of getcon('UNDEF'))
467    o pkg/mnc: prepare mnc for the actual use of missing values with the
468      diagnostics package: small fix in mnc_cw_readwrite.template and more
469      initialisation of never used fields
470      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
471      versions
472    o pkg/thsice/thsice_ini_vars.F added default initial values so that
473      thermodynamics sea ice solver does not blow up when some initial fields
474      are missing.
475    o move from external_forcing_surf.F to ini_forcing.F
476      the p-coord. hack consisting in using pLoad to set phi0surf ;
477      update output of tutorial_global_oce_in_p (affected @ truncation level).
478    o Freshen up a bit hs94.1x64x5, notably:
479      remove rotationPeriod and tRef=5*0. (adjoint only), and add
480      exactConserv=.TRUE.
481    o pkg/generic_advdiff:
482      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
483      applies to files where Temperature & Salinity 2nd Order moments are used.
484    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
485      this uses a dynamically allocated internal state data structure
486      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
487      and requires a fortran 90 compiler
488    
489    checkpoint59q
490    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
491       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
492    o Refresh tutorial_global_oce_biogeo, notably:
493      - change bathymetry (put back seamounts in ACC, use hFacs)
494      - change EOS (POLY3 --> JMD95Z)
495      - use Bryan-Lewis vertical diffusivity
496      - use multidimensional advection
497      - remove old virtual virtual in dic pkg, now done through ptracer pkg
498      - change a couple of parameters in dic pkg
499    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
500    o pkg/obcs: change default to OBCSfixTopo = .true.,
501      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
502      - replace "debugMode" with "debugLevel .GE. debLevB"
503    o implementation of TAF directives for gchem,cfc,dic
504    o remove "exp5" (replaced by tutorial_deep_convection).
505    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
506      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
507      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
508      --> changes results in exp4, seaice_obcs
509    o tutorial_deep_convection :
510      update the set-up and increase resolution and domain size ; start
511      from pseudo initial conditions = output at t=120mn in order to see
512      something happening when running testreport.
513    o pkg/seaice: add os7mp as an advection scheme
514                  add check for advection schemes
515                  add a flag for restoring T and S underneath sea ice
516    o pkg/my82: add netcdf-support and diagnostics
517    o thsice pkg:
518      - Now hsMax limits snow height by turning it into ice following
519        flooding scheme (and now conserving energy)
520      - Slight rewriting of the formula in thsice_calc_thick.F
521      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
522      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
523    
524    checkpoint59p
525    o gchem / dic / cfc :
526      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
527      - add new parameter files: "data.dic" & "data.cfc" ;
528      - various re-arrangement in initialisation & header file ;
529      - fix tutorial_global_oce_biogeo for multi-threaded test.
530    o pkg/dic: test for "pickup_dic" file when restarting ;
531      if no pickup-file, can restart with a re-initialised pH (same as it did
532      before) providing pickupStrictlyMatch is set to False.
533    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
534      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
535    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
536      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
537    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
538     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
539       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
540    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
541       scheme to use for vorticty-term ;
542     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
543       (with default selectVortScheme, return to original discretisation)
544     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
545    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
546    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
547      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
548      also fix diagnostics VISCAHW & VISCA4W.
549    
550    checkpoint59o
551    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
552    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
553      move a few statemens out the main loop into separate loops
554    o pkg/shelfice:
555      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
556        (kg/m^2/s), does not break tests, because in verification/isomip,
557        rhoConstFresh=rhoConst (by accident)
558      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
559      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
560        new file model/src/seawater.F, so that they are available for all pkgs.
561      - convert potential temperature into in-situ temperature. This changes the
562        isomip tests => update tests
563    o add a flag writePickupAtEnd (default=true) to be able to suppress
564      writing a pickup at the last timestep
565    o tools/mpack-1.6 :
566      - disable automake (not working) and autoconf (not needed).
567      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
568        also cleaner with much less compilation warnings.
569    o pkg/profiles:
570      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
571      (for "less than 32 characters name" compiler requirement)
572    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
573      conditions that have a different sampling frequency than S/T/U/V obcs
574    o pkg/diagnostics (stats-diags):
575      - fix global Min/Max in case 1 processor get only empty tiles
576    o genmake2: replace (4 times)
577         make genmake_tc_1.o >> genmake_warnings 2>&1
578      with
579         COMM="$CC $CFLAGS -c genmake_tc_1.c"
580         echo $COMM >> genmake_warnings
581         $COMM >> genmake_warnings 2>&1
582      to make genmake2 always see the value of CC as specified in the optfile.
583    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
584      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
585      - modify verification advect_cs test to test SOM-advection on CS-grid.
586    o pkg/ctrl:
587      - Rewrite of ctrl_map_ini_ecco.F,
588        introducing a generic routine (ctrl_map_ini_gen.F).
589      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
590    
591    checkpoint59n
592    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
593      number in dedicate array "hdiag":
594      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
595        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
596      - many small changes (integer format) for large number of diagnostics
597      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
598        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
599    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
600      usingSphericalGrid, this allows to define the rotated grid coordinates
601      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
602      geographical coordinates according to the inverse of the rotation defined
603      by the Euler angles, so that Coriolis parameter and online-interpolation by
604      exf works with the geographical coordinates on XC/YC/XG/YG.
605      Naturally, this feature does not work with all packages, so some
606      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
607      profiles), because there the coordinates are assumed to be regular
608      spherical grid coordinates.
609    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
610      - introduce isopycnal diffusion coefficient control.
611    o tools/adjoint_options:
612      - additional control vector components.
613    o pkg/mnc: have mnc create marginally meaning full coordinate variables
614      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
615    o pkg/mypackage:
616      - add example of read/write pickup for state-var ;
617      - add entry points to the main code for state-vars diags & write-pickup.
618    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
619      transitions for useExfYearlyFields
620      - add new subroutine that determines the file to read from for
621        use*YearlyFields = .TRUE. and .FALSE.
622      - add a verification experiment to global_with_exf that tests
623        useExfYearlyFields with USE_EXF_INTERPOLATION defined
624    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
625      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
626      subroutines (which could be generated from a template, because they are
627      almost identical), for now they are included in obcs_prescribe_read.F for
628      simplicity
629    o pkg/exf:
630      - add a little more diagnostic to exf_interp_read (in analogy to
631        mds_read_field, can be turned off with debugLevel < debugLevA=1)
632      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
633        ugly but fast by unrolling short inner loops, inserting a unroll=8
634        directive in routine lagran, and splitting a loop and making do while the
635        outermost loop (the latter requires the intoduction of index arrays)
636    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
637    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
638      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
639    o verification/seaice_obcs: updated for restart test and latest options
640    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
641      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
642      for now this is only available for the C-grid code and also within
643      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
644    
645    checkpoint59m
646    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
647      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
648    o gad_som : fix flux output (& diagnostics) to have same units as other  
649      advection scheme fluxes (was previously multiplied by deltaT).  
650    o added verification/seaice_obcs both to test seaice open boundaries
651      and to provide an example matlab scrpt for generating them
652    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
653    o pkg/salt_plume: clean up salt_plume_frac.F to
654      remove redundancy in PlumeMethod 1 and 4
655    o pkg/kpp: added saltplume diagnostics
656    o pkg/obcs and pkg/seaice:
657      - do not set uice and vice to zero when OB*icefile are unspecified
658      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
659      - moved seaice tracer obcs after call to seaice_growth
660    o pkg/salt_plume: added various options for salt plume depth
661      criterion and for vertical distribution of the salt
662    
663    checkpoint59l
664    o pkg/ptracers: new version of ptracers pickup:
665      read meta file and write only fields which are needed to restart.
666      ( same logic as main pickup file ; also using pickupStrictlyMatch )
667    o pkg/seaice:
668      - add timescale for melting due to warm mixed layer as a means of
669        setting SEAICE_availHeatFrac more conveniently
670      - add a CPP-flag/runtime parameter check for flooding algorithm
671      - reformulated availHeat in seaice_growth.F to be independent of AREA
672    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
673      unit changes
674    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
675    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
676      SX vector computer.
677    o pkg/seaice:
678      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
679        seaice forcing fields can now be read only through pkg/exf
680      - removed some unused halos
681    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
682    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
683      or U/VICE from U/VWIND before computing U/VSTRESS
684    
685    checkpoint59k
686    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
687      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
688    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
689      all experiments pass when compile with un-initialised var. checking option.
690    o added pkg/salt_plume
691    o script to test restart (for now, in MITgcm_contrib/jmc_script)
692    o pkg/seaice: new read/write pickup version.
693      read meta file and write only fields which are needed to restart.
694      ( same logic as main pickup file ; also using pickupStrictlyMatch )
695    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
696    o lab_sea.hb87: modify the domain & update output.hb87.txt :
697      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
698      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
699      process. Fixed here by closing the domain at the Northern boundary.
700    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
701    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
702      a set of consecutive levels in/from a 3-D array.
703    o pkg/ptracers:
704      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
705      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
706    
707    checkpoint59j
708    o in pkgs: dic, obcs, offline, rbcs:
709      standard way to compute coeff. for time interpolation between 2 time reccords
710      which retains full precision (& make results less dependent on compiler).
711      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
712    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
713      packages instead of reading ice cover and wind speed separately
714    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
715     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
716      to allow to compile customized code before the update)
717    o cleaning-up:
718      - fix CPP instruction syntax in pkg/obcs
719      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
720        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
721      - fix some threads issue in IO parts.
722    o pkg/dic:
723      - add tons of "_d 0" (--> much better testreports !)
724       and then update outputs of tutorial_global_oce_biogeo
725    o pkg/mom_fluxform:
726      add a special version of momentum advection intended to conserve momentum
727      next to a bathymetry step or a coastline edge. (default = off = #undef)
728    o new read/write pickup version:
729      - for now, only implemented for main (mdsio) pickup file.
730      - write out only what is needed to restart; merge pickup_nh , pickup_ph
731        and main pickup together.
732      - read meta file; read only what is needed to restart; stop if a field
733        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
734        if it make sense (even if the restart is not perfect).
735      - if no meta file, assume that pickup to read corresponds exactly to
736        a pickup that would currently be written.
737      - read pickup written in the old format (until checkpoint59i) if it
738        recognizes an old meta file (no field-list).
739      - add a meta file in exp. which starts from a pickup: 2 cases:
740        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
741         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
742        b) a meta file describing the content of the associated pickup file
743         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
744    o pkg/mdsio & pkg/rw:
745      - new routine to read a meta file ; new set of routine to read
746        Multiple-fields file (with meta file).
747    o added open boundary conditions capability for seaice
748        HSNOW, HSALT, UICE, and VICE
749    
750    checkpoint59i
751    o adjoint:
752      * fix multiDimAdvection adjoint
753        (partial recomputation problem by TAF for fVerT(:,:,kDown)
754        and comlev1 size definition (maxpass vs. max. number of tracers)
755      * verification/global_ocean.90x45x15 adjoint now tests
756        NLFS and multiDimAdvection using DST3 (=30)
757      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
758    o pkg/kpp: add "_d 0" to real constant (if missing);
759      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
760      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
761    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
762      for internal parameters related to restart process (formerly from PARAMS.h)
763      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
764    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
765      as argument. (only atm2d & obcs write_pickup have not yet been updated)
766    o pkg/monitor:
767      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
768      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
769      - account for deep Atmosphere factor and density factor (anelastic)
770    o added open boundary conditions capability for seaice HEFF and AREA
771    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
772      thermodynamics
773      - requires a little reorganization, which affects the testreport results
774        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
775        so that now the conservative form is tested
776      - add a few comments
777    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
778    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
779    o add new diagnostics to seaice: advective, diffusive fluxes (only for
780      multidim-advection, for scheme 2 they are not filled) and transports,
781      thermodynamic growth rates
782    o change units of EmPmR (inside the code, + within coupling interface)
783      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
784      Affects results @ truncation level (cg2d match) and update output of
785       experiments: lab_sea(6), global_ocean.90x40x15(10),
786      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
787      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
788      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
789      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
790    
791    checkpoint59h
792    o pkg/exf:
793      - improve vectorization by moving if-statement out of loops in
794        exf_mapfields, exf_radiation
795      - exf_bulkformulae.F: introduce 2D fields and vectorize code
796    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
797    o testreport:
798      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
799        monitor & update offline_exf_seaice exp. output.
800      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
801    o pkg/seaice:
802      - bug fix in the evp solver: boundary conditions were affected be
803        masking of zMax/zMin (changes results)
804      - minor bug fix in boundary conditions in seaice_calc_strainrates
805        (changes results for no_slip)
806      - seaice_lsr.F: make interpolation of eta dependent on boundaries
807      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
808      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
809        stress formulation and no-slip boundary conditions
810    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
811      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
812    o pkg/seaice: a first HSALT time stepping equation has been checked in
813    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
814      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
815      without requiring DO-IF statements
816    o pkg/thsice:
817      use continuous power-law function for partition of energy between lateral
818      melting/freezing and thinning/thickening ; old code using step function
819      still available with #undef THSICE_FRACEN_POWERLAW
820      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
821    o testreport: change AD testing : check against results/output_adm.txt
822      using same scripts as for forward test.
823    
824    checkpoint59g
825    o adjoint testing: in preparation for changing testreport:
826      - output format: cost and grad written on separated lines
827      - ad output results in directory "results" (instead of "results_ad")
828    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
829    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
830    o pkg/ecco: allow user defined cost function contributions
831    o testreport:
832      Allow to choose (per experiment) the list of tested output variables
833       and the main variable (used to issue a pass/FAIL ) ;
834      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
835      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
836      Also modify printing of summary:
837       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
838       b) echo the list of tested variables in the individual summary.txt of
839          each experiment.
840    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
841      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
842      (but still depend on the tile decompostion of the domain).
843    o pkg/seaice: change a discretization detail to make the B-grid code
844      "more symmetric". This change is likely to remove all "ridges/leads" that
845      where quasi-aligned with the grid in B-grid solutions. It may also be
846      the solution to the stress coupling issues with the B-grid.
847    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
848      remove .cvsignore from input dir. (since testreport no longer run here).
849    o pkg/thsice:
850     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
851     - fix reshaping of sea-ice just after advection:
852       melt all the ice only if ice-volume is too small.
853     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
854       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
855     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
856    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
857      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
858    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
859      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
860      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
861      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
862      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
863      -> update output.txt
864    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
865     this affects truncation error: -> update output.txt of exp:
866      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
867      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
868    
869    checkpoint59f
870    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
871    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
872      a bounded range (in forward mode)
873    o pkg/ecco, ctrl, autodiff and mom_common:
874     internal parameter controls, completements of implementations
875    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
876    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
877      (not seem any difference in testing results).
878    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
879       at face corners.
880    o pkg/generic_advdiff:
881     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
882      loop range indices for computing vertical advection tendency
883      and do the calculation in the interior only (no overlap) ;
884      for now, only implemented for SOM advection (to save CPU time).
885     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
886    o exch2 adjoint
887      First set of changes:
888      - add exch2 hand-written adjoint templates
889      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
890        This will require cleanup in pkg/autodiff/*.F
891        (changed routines currently kept separate in verif. code/)
892      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
893        that used to hide exch2 or cubed-sphere specific code
894        (commented via 'cph-exch2')
895    o pkg/seaice
896      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
897    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
898       output of global_ocean.cs32x15.thsice .
899    
900    checkpoint59e
901    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
902      for B-grid vector (not yet tested) and C-grid vector (<- only used
903      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
904    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
905      (#ifdef ALLOW_SALT_PLUME)
906    o gather_2d/scatter_2d: removed halo regions
907    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
908      scheme and the corresponding test case (under front_relax dir). For now,
909      only available with Skew-flux form and not yet tested in realistic set-up.
910      adjoint: store directives updated, but gradient checks deteriorated,
911      so maybe GM/Redi adjoint is now broken.
912    o seaice adjoint
913      * add AREA, HEFF, HSNOW as control variable
914        (should not change lab_sea results)
915      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
916    o pkg/seaice:
917      * added computation of saltFlux in seaice_growth;
918        For time being, sea ice salinity is assumed constant
919        contribution of snow flooding to freshening of sea ice is neglected.
920        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
921        defaults to 0.0 in order to maintain backward compatibility.
922        Typical values for SEAICE_salinity are 4 to 10 g/kg.
923      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
924      * added SEAICE_availHeatFrac, which specifies fraction of surface level
925        heat content used to melt or grow ice
926      * commented out cap of HICE: it helps keep ice thinner
927      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
928      * applied OBCS T/S mask to HEFFM sea ice mask
929    
930    checkpoint59d
931    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
932     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
933     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
934    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
935     and change default value of parameter "GM_Small_Number";
936     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
937       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
938       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
939    o pkg/ecco: cost function when applying pkg/smooth to controls
940    o pkg/ctrl: add forcingPrecond run time parameter
941    o pkg/seaice:
942     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
943     - fix bug in metric terms of u-equation in LSR solver (implicit part),
944       changes verification/lab_sea
945     - rearrange implicit part of u-equation in LSR solver to make it easier to
946       read, understand, and debug. This causes changes at the truncation level.
947     - fix (serious) bug in the boundary conditions (sign error in the implicit
948       part) of the LSR solver. Changes all LSR results.
949     - fixed problem with HSNOW initialization to avoid thick snow when AREA
950       is initilized with small values - does not change lab_sea results.
951     - added HsnowFile initialization capability
952    o pkg/smooth: addition to model/src and pkg/ctrl so allow
953     initialization of pkg/smooth and application to control vector
954    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
955    o dependencies: pkg/profiles requires pkg/cal
956    o pkg/profiles:
957     - added option ALLOW_PROFILES_GENERICGRID
958         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
959         that interpolation information (grid points and coefficients) is provided
960         within the netcdf input files.
961         -> sample matlab scripts can be found in MITgcm_contrib/gael
962         that allow you to prepare netcdf input files.
963     - also modified: cleaner include statements, cleaner error print statements,
964       cleaner stops when error, and more tests of the netcdf input files consistency.
965    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
966    o pkg/seaice:
967     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
968       requires a new routine: seaice_diagnostics_fill.F
969     - make sure that seaice does not move if not forced (pressure replacement
970       method, Hibler and Ip, 1995), changes results
971     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
972     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
973       It is turned off by default (=-1.), because it changes the results.
974     - make it possible to read AREA from a file, too.
975    
976    checkpoint59c
977    o add S/R and diagnostics for oceanic mixed-layer depth
978    o move GMRedi call after all vertical mixing schemes (including KPP)
979    o pkg/thsice:
980     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
981      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
982    o pkg/obcs:
983     - bug fix for balance code
984    o pkg/seaice:
985      - allow values of SEAICE_elasticParm > 1
986      - add new parameter SEAICE_evpTauRelax as an alternative
987        to SEAICE_elasticParm
988      - make lsr boundary conditions free slip (by default), changes result
989      - add code for no slip boundary conditions for lsr
990      - set minimum of zeta to zero (and not 4e8) (changes results)
991      - add a cap on AREA after advecting AREA if seaice_growth is not called
992    o change calculation of Visbeck K:
993      - no longer depend on tapering scheme; instead, compute slope (limited
994        by GM_maxSlope). this is equivalent to what was comuted before with
995        clipping or linear tappering.
996      - fix vertical averaging (wrong by 1/2 level)
997      - leave the old version (but will not be maintained) within
998        #ifdef OLD_VISBECK_CALC / #endif
999      - update output of exp. ideal_2D_oce
1000    o change error catch in calc_r_star to improve vectorization
1001    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1002      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1003    o adjoint:
1004      Re-organized adjoint checkpointing according to Matt Mazloff
1005      (but with modifs/completions/cleanups)
1006      Storing is now bundled into large arrays to optimized I/O
1007      (and second step in cleanup of the_main_loop)
1008    
1009    checkpoint59b
1010    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1011      - export/import (between ocean & coupler) fields needed for ocean DIC.
1012    o pkg/seaice:
1013      - get rid of three more exchanges seaice_calc_viscosities (required
1014        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1015      - bug fix in seaice_ocean_stress (update of lab_sea required)
1016      - reduce loop boundaries to necessary minimum also in seaice_evp
1017      - go back to the old way of computing deltaC/Z as the adjoint likes that
1018        better
1019    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1020      passive tracer to an Age Tracer) + update output.txt
1021    o pkg/exf:
1022      - implement A-grid / C-grid selection for wind-stress input files.
1023      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1024      for now, in exf_bulk_largeyeager04.F only :
1025      - change implementation for case where windspeed + 2. components wind-stress
1026        are read-in. AND use rhoConstFresh to convert evap.
1027    o pkg/seaice:
1028      - use correct EXCH_UV for wind-forcing (on A-grid).
1029      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1030        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1031    o pkg/exf:
1032      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1033      EXF_INTERPOLATION:
1034      - merge global_with_exf/code version of exf_interp_read.F
1035        to the main code ;
1036      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1037        reading the file ; Important: This options needs to be defined to recover
1038        previous code.
1039        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1040      - no longer loose real*8 precision along the way when using exf_iprec=64.
1041    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1042      - change discretisation of evp-solver in order to avoid another exchange
1043        (changes lab_sea) and clean up a little
1044      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1045        help the adjoint (this also changes the results slightly)
1046      - add a few "_d 0" where they had been missing in seaice_evp.F
1047      - cleaning up: remove unused seaice_calc_rhs.F
1048    o pkg/exf: some cleaning-up:
1049      - change various "constants" into runtime parameters
1050      - cleaned-up Large&Yeager04 routine which should eventually
1051        replace exf_bulkformulae.F (changed names of S/R and CPP)
1052        and merged various ALLOW_ATM_WIND options
1053     only used with thsice pkg (in thsice_get_exf.F):
1054      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1055        which are used when useStabilityFct_overIce=TRUE (= the default)
1056      - change default values of ice & snow emissivity and scale downward LW
1057        by ice & snow emissivity.
1058    o pkg/thsice:
1059     fix few little problems, in thsice_calc_thickn.F:
1060      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1061      - melt only laterally if hIce < hThinIce (as the comments say)
1062      and in thsice_extend.F:
1063      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1064      - start to form ice as soon as the minimum ice-volume is reachable.
1065     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1066      and cpl_aim+ocn
1067    o pkg/kpp
1068     - move computation of surface related input fields to KPP into a new
1069       subroutine kpp_forcing_surf.F
1070     - remove wrong (within bi,bj loops) EXCH calls.
1071     - little cleaning (add argument myThid in last position, cvs header ...)
1072     - for now, fix conservation problem by exchanging KPPviscAz (may not
1073       be the best fix)
1074    o pkg/seaice
1075     - check for inconsistent evp parameter/cpp-flag combination
1076     - remove leftover errIO flat for obsolete name list error handling
1077    o OpenAD
1078     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1079    
1080    checkpoint59a
1081    o pkg/seaice: some parameter clarifications and a little bit of clean up
1082    o pkg/thsice: rename run-time parameters:
1083       himin       -> hIceMin
1084       himin0      -> hThinIce
1085       hihig       -> hThickIce
1086       i0          -> i0swFrac
1087       transCoef   -> bMeltCoef
1088       frac_energy -> fracMelting
1089      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1090       with default values (for now) that do not change the results.
1091      remove old version of thsice vars advection in pkg/seaice.
1092    o in FFIELDS.h:
1093      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1094      - make pLoad & sIceLoad always available (but still only used if
1095         ATMOSPHERIC_LOADING is #define).
1096    o pkg/kpp: replaced _KPP_RL with _RL
1097    o bug fixes for vertical diffusivity computations when both KPP and
1098        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1099        are no longer updating the vertical diffusivity array
1100        (passed as argument) but are (re-) setting those arrays.
1101    o pkg/seaice: fix bug in evp solver, while doing that
1102      - change (improve?) discretization of stress computations for both
1103        cgrid-lsr and evp solver
1104      - add a new routine to compute strain rates
1105      - the above changes lab_sea results
1106      - add no slip conditions for evp solver (off by default), lsr-version
1107        may follow
1108      - fix exchange for shear at Z-points (does not change lab_sea)
1109      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1110        (to force the user to pick a time step since there is not "safe" way
1111        of choosing it)
1112      - add principal stress diagnostics
1113      - rearrange fields for evp a little to avoid having to call a: too many
1114        exchanges and b: exchanges for stress trensor components which we do
1115        not have.
1116      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1117        of evp, complete rewrite for lsr case (latter is does not yet work
1118        in all cases)
1119    o pkg/kpp: add code to have mixing in shelf ice caverns
1120      - add myThid to all kpp routines (long overdue)
1121    
1122    checkpoint59
1123    o pkg/exf:
1124      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1125        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1126      - move exf header files from lower_case.h to UPPER_CASE.h ;
1127        add missing cvs Header & Name
1128      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1129      - add namelist param. selectStressGridPosition, exf_monFreq
1130      - retire many _CLIM routines, and remove data.exf_clim
1131        + params moved to data.exf
1132        + climsst, climsss now handled by exf_set_gen, i.e.
1133          climss?period=0 refers to constant field,
1134          climss?period=-12 to monthly forcing
1135      - split up namelists in data.exf
1136    o pkg/seaice:
1137      - remove seaice_exch and seaice_exch_uv
1138      - remove superfluous exchange of theta
1139      - add myThid to seaice_budget_ocean/ice
1140      - add new interface for atmospheric wind forcing (C-grid only)
1141        + new routine
1142        + two new field (taux, tauy for stress over ice)
1143        + removed one global field (DAIRN) for C-grid case only
1144    o pkg/thsise
1145      - 2nd set of modifs for thsice adjoint in conjunction with exf
1146    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1147    
1148    checkpoint58y_post
1149    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1150      vertical diffusivity, similar to that in MOM4; turned on using
1151      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1152      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1153    o Added capability for 3D specification of background vertical diffusion
1154      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1155      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1156      "data" file that contains the 3D vertical diffusivity coefficients.
1157    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1158      - add code within pkg thsice to advect & diffuse sea-ice fields
1159      similar to (and will replace) what has been added in  seaice_advdiff.F,
1160      but: - conserving Mass, Heat & Salt.
1161           - better when using non-linear advection scheme (not yet fully tested)
1162           - can also be used in atmospheric set-up (for now, only the diffusion).
1163    
1164    checkpoint58x_post
1165    o IO option for global-file compact format:
1166      - add options when generating topology (utils/exch2/matlab-topology-generator)
1167      - add I/O capability (pkg/mdsio).
1168      - adapt utils/matlab/rdmds.m to read this format.
1169      for now long-line format not yet supported by pkg/mdsio (& exch2).
1170    o shelfice: add a few diagnostics
1171    
1172    checkpoint58w_post
1173    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1174      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1175      (and replace horiVertRatio in NH code).
1176      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1177                         and tutorial_plume_on_slope (sensitive to truncation)
1178    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1179      directly to drive seaice model (C-grid only)
1180    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1181     - reintroduce computation of wind from stress,
1182     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1183       mass points to avoid tau = 0
1184     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1185    o rdmnc.m: make it work with "global" files created with gluemnc
1186    o rdmnc.m : some improvements in dealing with singleton dimension
1187      (tested on all testreport mnc output files).
1188    o genmake2: disable pkg/profiles if netcdf test fails.
1189    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1190    o move call to cal_readparms up to make calendar parameters/variable available
1191      to all packages
1192    
1193    checkpoint58v_post
1194    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1195      useDynP_inEos_Zc tested.
1196    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1197    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1198      and portions thereof.  See read_cs.txt for description and examples.
1199    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1200      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1201      following the great-circle arc between those 2 points.
1202    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1203      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1204    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1205     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1206     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1207     - still needs work (not working with some options ; efficiency to improve)
1208       and serious testing.
1209     - use this scheme for temperature & salinity in 2 advection test exp.:
1210       advect_xy & advect_xz, respectively.
1211    
1212    checkpoint58u_post
1213    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1214    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1215    o testreport: add option "-skipdir" to skip some test.
1216    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1217      momentum calculation.
1218    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1219    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1220      remove checkpoint.F and the_correction_step.F (no longer used);
1221      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1222    o add option (linFSConserveTr) to correct for tracer source/sink due to
1223      Linear Free surface
1224    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1225    o pkg/thsice: fix reading mnc-pickups
1226    
1227    checkpoint58t_post
1228    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1229    o pkg/mdsio:
1230     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1231       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1232       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1233     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1234     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1235       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1236     - new S/R (to replace MDSWRITEMETA), which allows to write more
1237       informations (variable names, time ...) to meta files.
1238     - modify rdmds.m to give back the meta file content.
1239    o pkg/diagnostics: change vertical interpolation to be safer, and more
1240       flexible (define p-levels to interpolate to in data.diagnostics);
1241      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1242       diagnostic pointer.
1243    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1244    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1245    o fix multi-category seaice:
1246     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1247       SEAICE_MULTICATEGORY
1248     - fix short wave heat flux
1249    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1250       and allow to use EVP solver. Change forward lab_sea: test both EVP
1251       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1252    o Initial check-in of lab_sea adjoint
1253      (very similar to natl_box_adjoint/code_seaice)
1254      * used C-grid and EVP solver
1255      * used KPP, GM/Redi
1256      * uses inAdExact=.TRUE.
1257      * gradient checks fail for both ADM and TLM
1258        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1259        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1260        issue is related to forward mismatch between g77 an ifort
1261    o pkg/seaice: overhaul of thermodynamics
1262     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1263     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1264     - move a few global fields out of SEAICE.h into seaice_growth.F and
1265       make them 2D (FICE/QNETO/ ...)
1266     - remove FO (it is the same as QNETO)
1267     - introduce a few local fields to avoid modifying external fields such
1268       as atemp, etc.
1269    
1270    checkpoint58s_post
1271    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1272      changed exf_set_gen.F so that
1273        genperiod=0 means input file is one time-constant field and
1274        genperiod=-12 means input file contains 12 monthly means
1275    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1276      this affects truncation error ; generate new output file for exp. which
1277      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1278        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1279        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1280        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1281        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1282        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1283    o start implementation of deep-atmosphere and anelastic formulation
1284    o verification: remove 2nd copy of input files and use script "prepare_run"
1285      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1286    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1287    o profiles: fix for multithreaded case
1288    
1289    o diagnostics: rename few diags:
1290      s/'PRESSURE'/'RCENTER '/g
1291      s/'TICE    '/'oceFreez'/g
1292      s/'TAUX    '/'oceTAUX '/g
1293      s/'TAUY    '/'oceTAUY '/g
1294      s/'SWFLUX  '/'oceQsw  '/g
1295      s/DIFx/DFxE/g
1296      s/DIFy/DFyE/g
1297      and add few ocean-forcing diagnostics:
1298      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1299    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1300      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1301      as actual snow thickness.  It now refers everywhere to effective snow
1302      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1303    
1304    checkpoint58r_post
1305    o modifications to pkg/seaice/growth.F, which change results of
1306      lab_sea experiment: fixes pertain to melting snow over open water, to
1307      masking EVAP under sea ice, and to using the correct AREA variable for
1308      computations of EVAP, PRECIP, HSNOW, and GHEFF
1309    o add ability to read bathy, salt, and theta using MNC (off by def)
1310    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1311      both are turned off by default and do no change any results
1312    o seaice advection with pkg/thsice: a step toward the use of non-linear
1313      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1314    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1315      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1316      in natl_box (affects results @ truncation level: update output.txt)
1317    o multi-threading and IO:
1318      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1319      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1320        (needed to work with SingleCpuIO): tested in all verif. exp.
1321    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1322      affects the results (but none of the verification test uses this scheme).
1323    o Adding some pkg/diagnostics capability to pkg/seaice
1324      (will certainly be subject to changes)
1325    o ctrl: adding new control variables:
1326      lwflux, lwdown, evap, snowprecip, apressure, runoff
1327    
1328    checkpoint58q_post
1329    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1330      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1331      high_res_cube configuration by 4% on Columbia.
1332    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1333      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1334      dynamical allocation (seems to work in multi-threaded).
1335    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1336      single CPU io) so that TAF does not have to see EESUPPORT.h
1337    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1338    
1339    checkpoint58p_post
1340    o obcs: stop if obcs is used with useCDscheme = .true.
1341    o shelfice:
1342     - fix a sign error so that no slip at shelfice interface works
1343     - remove stop for combination non-hydrostatic code and shelfice. That does
1344       not mean, that the results are correct, but at least they are numerically
1345       stable
1346    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1347    o added adjoint exch routined for all exch*3d* routines
1348      and updated flow directives
1349    
1350    checkpoint58o_post
1351    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1352      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1353    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1354      and clean-up reading/writing of pickup files.
1355    o fix local version of read/write pickup (NH part) in rotating_tank/code
1356    o simplify EXCH interface:
1357     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1358     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1359    o added the regrid package
1360    o shelfice:
1361     - add a simple boundary layer scheme to reduce noise
1362     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1363    
1364    checkpoint58n_post
1365    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1366       local variable (not in common block).
1367    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1368      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1369      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1370        to work with SingleCpuIO.
1371    o add "_d 0" to real constant of pkg/cfc subroutines ;
1372       update exp. cfc_exemple & tutorial_cfc_offline output files.
1373    o multi-threading and IO:
1374      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1375        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1376      - barrier before and after reading.
1377      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1378      - avoid using MDS_WRITELOCAL for LAND pkg output.
1379      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1380        common-block variables ; Allows multi-threading with master-thread IO.
1381    o change default MAX_NO_THREADS from 32 to 4 ;
1382      and stop cleanly when MAX_NO_THREADS is too small.
1383    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1384    
1385    checkpoint58m_post
1386    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1387       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1388    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1389       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1390       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1391    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1392        add MITgcm_tutorials (= code + all the tutorials)
1393    o ecco, option to compute cost for total ssh (mean+anom)
1394    o consistent with addition of ptracer and ssh in pkg/profiles
1395    o profiles: adding ptracer and ssh
1396    o testreport: change multi-test output-file name
1397      (from output.txt.{name} to output.{name}.txt)
1398    o profiles: now ok for mutli-tiles case
1399    o seaice: add 4 parameters for different advection schemes for area,
1400      (effective) seaice thickness, enthalphy, and snow height. Their default
1401      is the standard parameter SEAICEadvScheme
1402    o calc_gw:
1403     - add cosFacU in zonal viscous flux (harmonic.visc.).
1404     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1405       of tutorial_plume_on_slope.
1406    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1407    o calc_gw: true flux-form, account for horizontal grid spacing.
1408      update rotating_tank results, but not plume_on_slope (affected at
1409      truncation level, 11 digits).
1410    
1411    checkpoint58l_post
1412    o calc_gw:
1413     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1414     - remove side-drag for now (need to fix it); update plume_on_slope results.
1415     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1416    o commit code to make SST/SSS weights spatially variable
1417      (based on either variable in-situ or variable initial T/S weights)
1418    o pkg/ecco:
1419      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1420        now based on horizontally varying weights wthetaLev, wsaltLev
1421      * cost_averagesflags now returns year indices in addition to day, month
1422      * sflux balance is performed on annual basis
1423        (sflxumm, sfluxmm2, bal_sfluxmm)
1424      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1425        including separate counting and multipliers
1426    o pkg/rbcs
1427      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1428    
1429    checkpoint58k_post
1430    o testreport:
1431     - always build in dir. "build" (if not there, mkdir build instead of building
1432       & running in input)
1433     - run in dir run (if it exists), in build otherwise.
1434     - call prepare_run (if input/prepare_run exists)
1435     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1436    o pkg/exf modifications to interpolation and rotation routines for more
1437       reasonable treatment of North Pole singularity: for tracers North Pole
1438       value is set to northernmost zonal-mean value, for zonal velocity it is
1439       set to zero, and for meridional velocity it is set to northernmost value.
1440    o pkg/exf/exf_check_range.F
1441     - add tile index to diagnostics and move stop statement to the very
1442       end of the routine.
1443    o pkg/diagnostics: (diagnostics_main_init.F)
1444      define title of isomorphic variables according to the current config.
1445    o pkg/thsice with pkg/seaice dynamics:
1446    - fix domain of computation (interior only, required for exf) and do exchanges
1447    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1448    o towards a standard way of dealing with multi-threading in MONITOR
1449      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1450    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1451       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1452    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1453    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1454    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1455       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1456    o tracer advection:
1457     - clean-up and simplify calc_common_factors.F
1458     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1459       advection subroutine (but still not used within DST advection S/R)
1460    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1461    
1462    checkpoint58j_post
1463    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1464      from file (collects calls previously in FORWARD_STEP)
1465    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1466    o adjoint store dir. adjusted accordingly
1467    o genmake2
1468      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1469    
1470    checkpoint58i_post
1471    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1472      on wind stress (SEAICEstressFactor defaults to 1.)
1473    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1474      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1475    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1476      on CS-grid: no longer loosing mass.
1477    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1478    o pkg/ggl90: fix sloppy output and fix a bug
1479    o pkg/seaice: added SEAICEuseEVPpickup parameter
1480      - Set to false in order to start EVP solver with
1481        non-EVP pickup files when using SEAICEuseEVP
1482      - fix sign error in diffusion in seaice_calc_rhs
1483    
1484    checkpoint58h_post
1485    * Modifications for bottom topography control
1486      o replace hFacC by _hFacC at various places
1487      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1488      o add non-self-adjoint cg2d_nsa
1489      o update autodiff support routines
1490      o re-initialise hfac after ctrl_depth_ini
1491      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1492    * Adding verification for 5x5 box (4-layer) bottom topography control
1493    
1494    checkpoint58g_post
1495    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1496       used for mean seasonal cycle, mean diurnal cycle); add an example
1497       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1498    o pkg/ggl90:
1499      - add parameter (minimum surface kinetic energy)
1500      - fix bug (avoiding division by zero)
1501    o couple pkg/thsice to pkg/seaice:
1502      - modify advection in seaice to accomodate new scalar fields to be advected
1503      - only muliDimAdection scheme work with seaice/thsice
1504      - mapping of thsice-variables to seaice-variables, back and forth
1505      - does not break the verification experiments, but does not give the
1506        desired results either
1507    o pkg/seaice
1508      - make (default) second order advection a bit less confusing?
1509    
1510    checkpoint58f_post
1511    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1512      to pkg/seaice):
1513      - new routines thsice_map_exf and thsice_get_exf provide the interface
1514      - add an additional formal parameter to thsice_solve4temp
1515    o pkg/exf:
1516      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1517      - correct Stefan-Boltzmann constant
1518      - new parameter for longwave surface emittance
1519      - separate some stuff from exf_bulkformulae into new routines  
1520        exf_radiation, exf_wind
1521      - add new parameters and constants: longwave emissivity for ocean, ice
1522        and snow, evaporation parameters over ice
1523      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1524        either wind from stress or stress from wind
1525    o pkg/thSIce:
1526    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1527    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1528       and THSICE_CALC_THICKN
1529    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1530    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1531      to make debugging easier.
1532    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1533    o pkg/bulk_force:
1534      - clean-up comments and parameters ;
1535      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1536    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1537      generate new output for test-experiment: aim.5l_cs.thSI
1538    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1539      testreport accordingly
1540    
1541    checkpoint58e_post
1542    o SEAICE_CGRID adjoint done
1543    o R_STAR adjoint implemented.
1544      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1545      * need to sort out init. of h0facc, etc.
1546    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1547      to be able to use it in pure forward.
1548    
1549    checkpoint58d_post
1550    o upgrade simple test-experiment to tutorial example:
1551     step.1: duplicate the experiment and (step.2) will remove the old copy.
1552      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1553      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1554      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1555      tutorial_global_oce_biogeo    <- copy of dic_example
1556      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1557      tutorial_plume_on_slope       <- copy of plume_on_slope
1558      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1559      tutorial_global_oce_optim     <- empty for now (David ?)
1560      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1561     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1562    o correct a sign problem in cost_scat.F
1563    o obcs and ptracers: fix boundary conditions for advections schemes
1564      with larger stencil
1565    o thsice adjoint: start
1566    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1567      completeness
1568    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1569      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1570    o ptracers adjoint:
1571      * avoid extensive recomputatations
1572      * fix missing re-init. of gptr (missed by TAF)
1573    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1574      me to turn off the excessive output to STDOUT that this package produces
1575    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1576      and add those terms in Vector-Invariant formulation.
1577    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1578      if the control period (xx_hfluxperiod etc) is 0
1579    o in profiles pkg, clean routines and fix details
1580    o in ecco pkg, reading ssh data:
1581      fix problem in case the model does not start at iter0=0
1582    o fix mnc-pickup/restart for ptracers
1583    o new package prifiles:
1584      code to compute profile-based cost by Gael Forget
1585      (modifs in ecco, ctrl, autodiff)
1586    o Benign bug fix in initialization (spotted by M. Mazloff) of
1587      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1588    
1589    checkpoint58c_post
1590    o adjoint: finish NLFS adjoint and provide reference output in
1591      verification/global_ocean.90x40x15/results_ad_nlfs
1592    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1593      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1594      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1595      with SEAICE_CGRID defined.
1596    o move calendarDumps from "data" to "data.cal" and clean-up the code
1597      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1598    o add useEXF & useCAL flags (for now, set in hard-coded way)
1599    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1600      (were missing in NH mode, and wrong in quasihydrostatic mode).
1601      waiting for Chris updated version of calc_gw to add those CALLs.
1602    o fix bug in quasihydrostatic S/R ;
1603      add a test for this option: global_ocean.90x40x15.qshyd
1604    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1605      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1606    o add on/off flag useOffLine for package OFFLINE
1607    o seaice:
1608      - modify advection so that it works also on the C-grid
1609      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1610        problem in multi-tile runs with C-grid
1611      - add flags for clipping ice velocities and/or masking solver forcing
1612      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1613        C-grid solver
1614      - added a few comments to seaice_diffusion.F
1615      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1616        are now exclusive)
1617      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1618        required re-ordering the code a little:
1619       + make DAIRN global variable (defined in SEAICE)
1620       + move computation of the viscosities eta and zeta into a new separate
1621         routine (because I need to recompute them in seaice_ocean_stress.F)
1622    
1623    checkpoint58b_post
1624    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1625      update output.txt of exp. aim.5l_cs.thSI
1626    o various mnc cleanups and improvements:
1627      + shrink lookup tables by factor of ~4
1628      + better error reporting when running out of lookup space
1629      + able to handle longer path/file names (up to 500 chars)
1630    o adjoint:
1631      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1632      - TBD: "hidden" mom_vecinv recomp. in dynamics
1633    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1634     (allow to differentiate between forcing components using new integer flags:
1635      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1636     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1637    o ecco
1638      - enable trend removal from SSH anomaly obs.
1639    o adjoint
1640      - a fix for PmEpR when #undef EXACT_CONSERV
1641      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1642      - try to fix "hidden" recomp. in forward_step for NLFS
1643        (NLFS seems broken sometimes after I checked it in)
1644    o seaice:
1645     - add c-grid version of the dynamic solver:
1646       + three new routines that are the c-grid substitute lsr, dynsolver
1647         and ostres
1648       + put a few fields that were local to dynsolver into global common
1649         blocks, so that I can move the computation of stresses etc into
1650         seaice_lsr (saves coding but may break the adjoint).
1651     - replace more hardwired parameters by runtime parameters
1652     - add ice masks that mask the rhs of the implicit solvers where there
1653       is no ice (commented out in seaice_dynsolver, because i am not sure
1654       if this works properly), eventually this should replace the clipping
1655       of ice velocities in seaice_dynsolver to +/-40cm/s.
1656    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1657      include it only where its needed
1658    o move balancing of fluxes before the call of external_forcing_surf
1659    o seaice:
1660      - correct units of turning angles (now they are really in degrees)
1661      - move computation of GWATX/Y out of main routine into dynsolver
1662      - initialize GWATX/Y in seaice_init
1663    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1664      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1665    o seaice: add runtime flags for turning angles (default to zero)
1666    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1667      and trend from exf forcing and ctrl control adjustments
1668    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1669      (since checkpoint57x_post)
1670    o change the default rotation period to 86164.s = the Earth rotation
1671    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1672      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1673    o seaice advection: add code for choosing between the default (2nd order
1674      central differences) and multiDim advection schemes provided by
1675      pkg/generic_advdiff
1676    o seaice:
1677      - removed all references to SEAICE_GRID.h fields from
1678        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1679        (cubed-sphere configuration will change a little)
1680      - grid computations in seaice_init are obsolete now.
1681      - cleaned up code a little so that is easier to read (hopefully).
1682      - added new (better?) discretizations of default advection and diffusion
1683        (turn on with SEAICEuseFluxForm)
1684      - replace 1 in 3d global fields by kSurface in growth.F
1685      
1686    checkpoint58a_post
1687    o seaice:
1688      - bug fix in advect.F
1689    o shelfice:
1690      - separate shelfice load anomaly from pload (breaks with time
1691        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1692        Its default is 0., but it may be computed more cleverly from (unknown)
1693        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1694        done offline. A good approximation of the pressure load anomaly is
1695        necessary to avoid large initial adjustment processes underneath
1696        deep-reaching shelfice.
1697      - small fix in ISOMIP shelfice_thermodynamics
1698      - add more sophisticated thermodynamics of Hellmer (1989), this is
1699        now the default
1700      - give a few constants more intuitive names
1701    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1702      if bulk formulae are used in long integration (especially EmPmR). Turn
1703      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1704      if balancePrintMean, the imbalance that is substracted is printed to
1705      STDOUT.
1706    o fix bug (typo) in obcs_apply_eta.F
1707    o add a new package shelfice which enables us to model the circulation
1708      underneath shelf-ice with draughts of hundreds of meters.
1709     - works
1710     - to do: + include improved thermodynamics
1711              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1712                instead of new field kTopC
1713              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1714                instead of new field R_shelfIce and new code in ini_depth.F
1715                and ini_mask_etc.F?
1716              + adjust vertical mixing schemes?
1717    o seaice pkg:
1718     - add a cpp-flag to include a simple formula for a salinity dependent
1719       freezing point of sea water at the surface
1720     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1721       meridional stresses are now different (and hopefully correct)
1722    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1723       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1724       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1725    o pkg/diagnostics: add options and parameters for regional-statistics
1726       diagnostics ; define regions by reading a region-mask from a file
1727       (might add other options later)
1728    o pkg/bulk_force:
1729     - add option and parameters to use AIM surface-flux formulae.
1730     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1731       others forcing fields (defined in PARM05, parameter file "data") are loaded
1732       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1733     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1734     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1735     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1736       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1737     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1738    
1739    checkpoint58
1740    o add "--embed-source" option to genmake2 which, when the supporting
1741      tools can be compiled (as determined by genmake2) will turn on the
1742      embed_files package which then embeds the entire MITgcm source code
1743      (*.[fFhc] + Makefile) used for the build within the executable
1744      - requested by CNH but off by default
1745      - adds a paltry <9MB to the mitgcmuv executable in most cases
1746      - only writes the output when useEMBEDSRC in eedata is true
1747    o clean up 3-dim. relaxation codes:
1748      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1749      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1750      * Thanks to Tom Haine for testing!
1751    
1752    checkpoint57z_post
1753    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1754      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1755    o fix the pickup behavior for obcs in combination with ptracers
1756    o fix a bug in ptracers_external_fields_load
1757    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1758      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1759    o transfered surface NH pressure to eta field (if exactConserv).
1760    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1761         and update lab_sea output.txt file.
1762    o completing 3-dim. relaxation code: additional term
1763         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1764      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1765      * At compile time, in "EXF_OPTIONS.h" set
1766          #define  ALLOW_CLIMTEMP_RELAXATION
1767          #define  ALLOW_CLIMSALT_RELAXATION
1768      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1769          tauThetaClimRelax3Dim = 15552000.0,
1770          tauSaltClimRelax3Dim  = 15552000.0,
1771      * 3 cases:
1772          1) Use a constant-in-time 3-dim. field
1773          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1774          3) Real-time relax. to time-evolving prescribed field
1775    o Adding Laplacian-type smoothness constraint on
1776      initial and boundary (forcing) controls (ic, bc)
1777      * enable at compile-time via
1778        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1779      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1780      * Absolute scale somewhat unclear so far
1781      * no area weighting was included since no other cost term does so far
1782    
1783    checkpoint57y_post
1784    First step for a NLFS adjoint
1785    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1786    o new init. routines for calc_r_star, calc_surf_dr
1787    o still need to deal with ini_masks_etc
1788    o testreport seemed happy
1789    checkpoint57y_pre
1790    
1791    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1792    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1793    o add new offset feature to offline pkg (plus minor cleanup)
1794    o cfc fixes for final year of integration
1795    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1796      be in GCHEM_OPTIONS).
1797    
1798    checkpoint57x_post
1799    o fix testreport Pb in multiple test experiment.
1800    o cleanup our namelist syntax in verification:
1801      - make it more F95 standards compliant (some work still needed)
1802      - allows the vast majority of our tests to work with gfortran
1803    o Non-Hydrostatic:
1804     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1805     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1806    o Allow to apply AB on T,S rather than on AB(gT,gS):
1807     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1808     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1809       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1810     - need a "clever" read_pickup to restart from the other AB formulation
1811    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1812    o remove some unused variables (reduces number of compiler warnings)
1813    o adjoint
1814      * Disable useVariableViscosity for adjoint for time being
1815        (there are a number of extensive recomputations)
1816      * Initialize certain variables needed for adjoint
1817    
1818    checkpoint57w_post
1819    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1820                 fix the singleCpuIO RS version of MDSWRITEFIELD
1821       and add a WARNING if using globalFiles=T with multi-processors.
1822    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1823      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1824    o tracer advection scheme:
1825      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1826       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1827       was not very convenient).
1828      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1829       (further tests needed for the implicit DST & Flux-Limiter schemes).
1830    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1831      and sRef for convenience, handy, when you want to initialize
1832      ptracers in a large domain with a constant non-zero value. Also,
1833      untangle ptracers_init.F a little.
1834    
1835    checkpoint57v_post
1836    o change dome exp. to use variable viscosity in side-drag terms.
1837    o remove all the files from the cfc_offline test since they are now
1838      incorporated into tutorial_cfc_offline which has been producing
1839      identical results for a few days of testing
1840    o add new parameter: sideDragFactor to enable half-slip-side BC
1841      and change side-drag S/R to use viscosity from mom_calc_visc
1842      (can switch back by setting sideDragFactor=0.); affects results at
1843      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1844       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1845    o vorticity & strain are now computed without masking, to account for
1846      no-slip-side BC in variable viscosity calculation ; mask is applied
1847      anyway later on, before computing advection/coriolis terms.
1848    o modify exp4 to test new obcs support for reading from external files
1849      and for passive tracers
1850    o fix behavior of ptracers_monitor when monitor output is written to a
1851      netcdf-file; still not independent of monitor.F (writes in the same
1852      file).
1853    o change default value of tRef (put a uniform, meaningful value for ocean
1854      & atmos) and initialize sRef (was missing, as Martin mentioned).
1855    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1856      to be proportional to enstrophy dissipation length.  Thus,
1857       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1858      This is now consistent with Smagorinsky and with the manual.
1859    
1860    checkpoint57u_post
1861    o OBCS and PTRACERS: add open boundary support for passive tracers
1862      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1863        OB-values from file; this is not different from the way theta and salinity
1864        are treated
1865      - however, Orlanski-radiation conditions are not supported, and the model
1866        will stop if you use pTracers and Orlanski at the same time.
1867      - beefed up the rountine obcs_external_fields_load: now only those open
1868        boundary values are overwritten with values from files for which there
1869        are really files, otherwise the OB-fields remain untouched. This makes
1870        it possible to use different OBs at different ends of the domain (as
1871        with EXF)
1872    o reduce number of exch calls in shap_filt (s2).
1873    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1874      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1875    
1876    checkpoint57t_post
1877    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1878    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1879      same truncation, independent of the face number: affects affects several
1880      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1881    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1882      note that biharmonic viscosity + no-slip was not tested in any experiment.
1883    o fix bug in non-linear free-surf side-drag ; generate new output for
1884      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1885    o make mnc honor the writeBinaryPrec flag for most kinds of output
1886    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1887    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1888      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1889    o add brackets in multi-terms sum to get same truncation, independent of
1890      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1891      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1892    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1893      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1894      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1895      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1896      Suggested values of viscosity parameters found in mom_calc_visc.
1897      Many new viscosity diagnostics available.
1898    
1899    checkpoint57s_post
1900    o Add clearing-house for viscosity calculations, mom_calc_visc and
1901      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1902      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1903      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1904      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1905      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1906      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1907      ViscAhStrain and viscAhTension are now retired.
1908    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1909    o In response to JMC's bug report, genmake2 now ignores any soft-links
1910      that it finds in the *current* directory when searching for files.
1911      Soft-links found in any other source directories will still work as
1912      they did before.
1913    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1914      a C routine to unlimit the stack size
1915    o mnc-ify pkg/aim snapshot vars
1916    o mnc-ify pkg/land as requested by Daniel
1917    o various changes to mnc including:
1918      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1919      - output can now be grouped so that all files within a group
1920          change the ITER portion of their names in lock-step together
1921      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1922          and works with both EXCH1 and EXCH2 (but needs more testing)
1923      - writing works for all verification test cases w/ g77 on Linux
1924    
1925    checkpoint57r_post
1926    o make MNC variable initialization happen earlier
1927    o add diagnostics for (almost) each term of the momentum Eq.
1928    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1929    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1930    o remove MINIMAL_TAVE_OUTPUT option ;
1931      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1932    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1933      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1934    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1935    o add time-dependent SST, SSS control
1936    o cost terms in ecco/ modularized (new cost_generic.F)
1937    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1938    o new infrastructure for seaice model vs. obs misfits in seaice/
1939      * driver from the_main_loop.F is seaice_cost_driver.F
1940      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1941      * gradient check in Exp. 6a of natl_box_adjoint/
1942    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1943      (see README file)
1944    
1945    checkpoint57q_post
1946    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1947    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1948      - bug was reported by Jean-Michel and Ian Fenty
1949    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1950      update exp. cpl_aim+ocn output.
1951    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1952      Needed for high-res. runs with large global files
1953      to be able to limit tapelev size
1954    o Changed some tests for adjoint:
1955      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1956      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1957      * global_ocean.90x40x15/ back to default 3-level checkpointing
1958    o Modifications to enable scripted COMMON to MODULE conversion
1959      * verification/OpenAD/code/ has necessary scripts and description;
1960      * converts, compiles and runs successfully;
1961    
1962    checkpoint57p_post
1963    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1964    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1965      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1966    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1967    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1968      (was already the case for dissipation with mom_vecinv,
1969       and also the case for grad.PhiHyd when staggered-timeStep)
1970      This will allow to put dissipation out-off the AB time-stepping.
1971     Unfortunately, affects truncation error. Update output of exp. that "fails"
1972      (cg2d matching number) and leave the others for later: front_relax(10),
1973      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1974      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1975    
1976    checkpoint57o_post
1977    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1978      (2) its ready to be documented during the 20050801 DocFest
1979    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1980      for ideal_2D_oce and lab_sea on linux_ia32_g77
1981    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1982      in global1x1_tot/code_seaice_adj to access indices 32, 33
1983      (worth another tag)
1984    
1985    checkpoint57n_post
1986    o adding precip control xx_precip 32
1987    o adding swflux control xx_swflux 33
1988    o Replacing 10 forcing penalty cost routines by 1 generic.
1989    o Implementing partitioning in time-mean and variable adjustment
1990      for atmos. state.
1991    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1992  o in natl_box_adjoint:  o in natl_box_adjoint:
1993    * updated: results_bulk/    * updated exp 1 to 10
1994    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1995    o updated global1x1/*_seaice_adj/
1996      to incorporate latest changes
1997    o enable useSingleCpuIO for mdsio vector routines
1998      (applies in particular to tapelev I/O)
1999    o removed inefficient K-loop in all active_file*control*.F
2000    
2001  checkpoint57m_post  checkpoint57m_post
2002  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
# Line 591  o add two new packages Line 2579  o add two new packages
2579    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2580    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2581      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2582      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2583  o add offline package  o add offline package
2584  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2585    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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