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revision 1.193 by edhill, Thu Oct 23 04:41:40 2003 UTC revision 1.433 by heimbach, Tue Jan 4 22:08:07 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6  untagged  o add saltFlux(+File) forcing capability with periodicExternalForcing
7    o allow to use pkg diagnostics for GM-Redi & ThSIce output
8    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
9    o improvements for the MNC output from DIAGNOSTICS:
10      - correct handling of the unlimitied dimension
11      - all dims now have associated coordinate variables
12      - variables located at U, V, and Corner ("Z") points are now written
13        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
14        *all* data points are output
15    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
16    o added pkg/seaice/seaice_monitor.F
17    o mdsio_readfield.F can now read files visible only to master MPI process.
18    o pkg/seaice: some test code for ice-modified ocean stress
19    o exf_getffields interpolation defaults to bilinear for all scalar forcing
20      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
21      spurious negative numbers for precipitation and humidity.  Will cause
22      some small numerical differences for integrations using pkg/exf/exf_interp.F.
23    o Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
24      May be enabled via doPackDiag
25    
26    checkpoint57b_post
27    o simplify options in diagnostics_fill arguments (remove weird combinations)
28    o fix MNC coordinate variables so that they now contain per-face index
29      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
30      general, EXCH2 grids are only aligned to a "local" coordinate system
31    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
32    o Implement instantaneous output within pkg diagnostics:
33      setting a negative frequency in data.diagnostics produces
34     "snap-shot" output (as opposed to time-average if freq > 0)
35    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
36      NOTE: change ptracer diagnostics name: use 2 characters to work with
37            more than 9 tracers. Add also diagnostics of advect & diffus flux.
38    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
39      becomes the coordinate variable for the 'T' dimension
40    o add CF-style coordinate variables to MNC
41      - just a first cut:  numbers are meaningless on the cubesphere and
42        missing along the T axis but otherwise it works!
43    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
44    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
45    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
46      this is based directly on what the model compute, so that the content of
47      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
48    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
49    o clean up build options files for SunOS, in particular
50      - remove -traditional from xmakedepend
51      - change -xarch=v9 to -xarch=native for f77
52      - restore use of make (not gmake)
53      - add CC=gcc if using g77
54    o changes per discussion of AM, JMC, & EH3 today:
55      - move redundant "grid" variables out of "state" -- in preparation of
56        creating proper CF-style coordinate variables and in recognition
57        that any/all grid variables can be easily copied (eg. w/NCO) from
58        the grid files into any of the other NetCDF files
59      - *always* output grid variables with MDSIO (this will eventually be
60        changed)
61      - output MNC grid file if useMNC is true
62    o every instance of _END_MASTER() has been found and replaced with
63      _END_MASTER( myThid ) in order to satisfy certain picky Sun
64      preprocessors
65    o re-arrange diagnostics pkg initialisation:
66     - allow each package to extend the available diagnostics list
67     - add some checking and fix small problems (multi-threaded, ...)
68     - new S/R diagnostics_fill (replace fill_diagnostics):
69       look through the short list of active diag. (instead of the long list)
70       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
71    
72    checkpoint57a_post
73    o this set of changes restores TAMC compatibility
74      tested for global_ocean.90x40x15 adjoint on trough
75      (what a pain)
76    
77    checkpoint57a_pre
78    o some modifs in tools/build_options for sunos
79    o call ctrl_pack for ctrl at end for optimcycle=0
80    
81    checkpoint57
82    o add horizontal bi-harmonic viscosity for vertical velocity
83      - new parameter viscA4W (defaults to viscA4)
84      - affects only non-hydrostatic code
85      - to be done: no-slip lateral boundary conditions
86    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
87    o implement Implicit Vertical advection for pTracers
88    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
89      (implemented also for implicit vertical diffusion & advection)
90    o OBCS: extend application of tracer open boundary conditions
91      to a strip beyond the boundary of width Olx/Oly
92    o add call monitor to TAF set of required calls (flow directives)
93      and include in natl_box_adjoint
94    o untangle a few ifdefs related to cost, ctrl, autodiff
95      untangel a few ALLOW_ECCO_OPTIMIZATION
96    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
97      (theta2, salt2 in ecco_cost_weights)
98    
99    checkpoint56c_post
100    o OBCS as control variables
101      - update ctrl_ad_diff.list, obcs_ad_diff.list
102      - remove balance of obcs controls from default
103      - fix index bug nobcs in ctrl_init
104      - fix dummy fields filen in ctrl_pack
105      - add dummy weights for obcs
106    o lsopt: comment out fort.94 output
107    o optim:
108      - remove unnecessary header files
109      - adjusted namelists
110      - add xerbla.F to Makefile
111    o exf:
112      - multiple modifications of exf_check_range
113      - unit change in exf_init_runoff from [m/year] to [m/s]
114    o mdsio:
115      - i/o-vector change debugLevel from debLevA to debLevB
116    
117    checkpoint56b_post
118    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
119      is called from DO_THE_MODEL_IO
120      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
121      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
122      - clean up PTRACERS_WRITE_TIMEAVE a little
123    o add another verification experiment that tests both the cfc-pkg and
124      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
125      reactive tendencies treated inline with regular timestepping
126    o testreport previously did a lousy job of comparing small numbers, so
127      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
128      implemented in the little c-progam tmp_cmpnum.c which is embedded in
129      testreport.
130    o ptracers_monitor: bug fix for MPI
131    
132    checkpoint56a_post
133    o GCHEM: finish reorganizating the package
134      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
135        (introduces another 3D-array for each passive tracer, but only if
136        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
137        gchemTendency is not needed because the timestep is done separately)
138      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
139      - GCHEM is now---more or less cleanly---separate from PTRACERS
140      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
141        so clear to me how that should be done in a general way.
142    o CFC: improve formatting of output in CFC_ATMOS
143    o PTRACERS:
144      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
145        that ALL experiments with ptracers enable can be checked. This makes
146        GCHEM_MONITOR obsolete.
147      - include a runtime parameter PTRACERS_monitorFreq that defaults to
148        monitorFreq
149      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
150    o add PTRACERS (PTR0[1-5]) to testreport output
151    o exf_check_range:
152      * default changed to .TRUE.
153      * will check values for niter0 if debLevA, every timestep if debLevB
154      * STOP in exf_check_range if 'out of range'
155      * range chosen generous to allow for potential extema
156      TBD: a version with stricter range
157           permitted range would be runtime parameters
158    o GMredi:
159      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
160      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
161      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
162    o GCHEM:
163      - move call to GCHEM_FORCING_SEP, so that it is now called before
164        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
165      - introduced a useGCHEM runtime flag and applied it everywhere.
166      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
167        this flag is now only visible within GCHEM-pkg routines.
168      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
169        be replaced by a 3D array that is computed before thermodynamics; for
170        this, the tracer ID iTracer had to be included into the parameter list
171        of ptracers_forcing
172      - set up forward_step to call gchem_forcing, that will replace
173        gchem_forcing_int in ptracers_forcing
174      - cleaning up
175    o small cleaning of exch2: remove files that are also in eesupp/src
176    
177    checkpoint56
178    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
179    o mnc: cleanup "full" files--fixes out-of-memory problem
180    o ECCO-GODAE
181      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
182      * fully merged and updated from SIO code
183        windstress sign change affects
184        - exf_inscal_[u/v]stress
185        - sign of xx_tau[u/v] adjustments
186        - signs in cost_scat
187      * ctrl_get_gen: avoid update of tau[u/v] for first few days
188      * natl_box_adjoint updated and compressed
189      * 2-level checkpoint switch added
190        (tested in EXP. 1 of natl_box_adjoint)
191      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
192    o SVD
193      * first complete, non-hacked version for SVD calculations
194      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
195        performed via direct access files admtlm_vector.it????
196        (via ctrl_[un]pack)
197      * optimcycle is used for ARPACK iteration counter
198        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
199      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
200        and add linear transforms where necessary
201      * controls are initial/final SST, SSS (can be extended; need to check
202        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
203    o mdsio: filename info to both stderr, stdout
204    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
205      from sign change
206    
207    checkpoint55j_post
208    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
209      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
210    o add consistent build directories and .cvsignore files to verification
211    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
212    o make all subroutines 30 or less characters in length for certain older
213      compilers to work (a thorough search only turns up two routines in
214      pkg/ptracers)
215    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
216      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
217    
218    checkpoint55i_post
219    o change arrays for total vertical diffusivity (2.D if explicit,
220      3.D if implicit) ; each ptracer uses its own background value.
221    o added mnc/NetCDF output capability to ocn_compon_interf
222      - added bits to verification/cpl_aim+ocn so that it can run on
223        ITRDA and other clusters without the mpirun "-wd" option
224    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
225      configuration
226    o give MNC the ability to create additional files rather than
227      exceeding a specified file size limit "MNC_MAX_FILESIZE"
228      - the default is just less than 2GB which is a practical limit
229        on many systems
230    o Compute the non-local term using either KPP vertical diffusivity (=default)
231       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
232    
233    checkpoint55h_post
234    o add verification test "vermix"
235    o remove all the *_ioinc flags and replace with the single global
236      outputTypesInclusive flag
237    o allow to set a vertical profile of vertical diffusivity for T & S
238    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
239    o useMNC moved from data.mnc to data.pkg
240    
241    checkpoint55g_post
242    o Renaming carbon AD experiments to comply with testreport conventions
243    o Updating adjoint of Held-Suarez hs94.1x64x5
244    o Fixing directives for non-ECCO forward_step, after ECCO directives
245      have been fixed to avoid recomp. of do_oceanic_phys
246      Works well for global_ocean.90x40x15,
247      but recomp. issue remains for carbon
248    o Updating adjoint output for natl_box_adjoint after
249      pkg/ecco has been modified (see taga c55d_post)
250    
251    checkpoint55f_post
252    o rename to timeave_init_fixed
253    
254    checkpoint55e_post
255    o some delicate re-shuffle of store directives to avoid one
256      extra call of do_oceanic_physics
257      affects ecco_the_main_loop.F, do_oceanic_physics.F
258      checkpoint_lev1_directives.h
259    o NB: this may break global_ocean adjoint temporarily,
260      but it is clear how to fix it. Will do later, need this now.
261    
262    checkpoint55d_post
263    o ECCO specific cost function terms (up-to-date with 1x1 runs)
264    o ecco_cost_weights is modified to 1x1 runs
265    o modifs to allow observations to be read in as
266      single file or yearly files
267    o enable to read exf forcing fields as either
268      single file or yearly files (flag useExfYearlyFields)
269    checkpoint55d_pre
270    
271    o switch between 2-level and 3-level checkpointing
272    o add ability of MNC to write local and "partial" (eg. 2D slices where
273      the full 3D field is never actually stored) arrays to NetCDF files
274      with the correct (that is, the complete multi-dimensional) set of
275      array indicies
276      - used in mom_vecinv() to write the diagFreq output
277      - tested (demonstrated) in verification/aim.5l_cs
278    o further mnc-ification
279      - add verification/lab_sea to the list with mnc setups
280      - fix undefined mnc v-names in cd_code
281      - add kpp to mnc output (both snapshot and timeave)
282    o non-hydrostatic code
283      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
284        in calc_gw.F
285      - defaults to viscAh
286      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
287        friction or Leith) in non-hydrostatic mode, as long as there is
288        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
289    o pkg/cost
290      extend simple cost functions to treat time mean quantities
291      (T,U,V) via cost_accumulate_state from cost_tile
292    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
293        be 2 times larger than the minimum size the advection scheme requires.
294        now get a perfect conservation of salt in advect_cs test-exp (updated)
295    o GGL90 (Gaspar's TKE mixed layer)
296      - add horizontal diffusion of TKE, requires exchanges in
297        do_fields_blocking_exchanges, horizontal diffusivity is zero by
298        default. In OPA there is no horizontal diffusion of TKE but the
299        mixing coefficients are computed from a horizontal average of TKE of
300        6 points or so. I think that diffusion has a little more physical
301        justification.
302      - clean up ggl90_calc in the hope of reducing memory usage (this hope
303        was in vain)
304      - mask tke-variable in ggl90_init
305    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
306    o fix biharmonic diffusion on CS-grid.
307    o more obcs stuff
308      - added obcs_external_fields_load as an alternative to the EXF-pkg option
309        for reading boundary values. This routine is called from
310        obcs_prescribe_read
311      - updated obcs_check
312      - changed sponge layer relaxation parameter units for days to seconds
313      - turned off sponge layer by default
314      - changed argument list of OBCS_CALC to myTime+deltaTclock
315      - fixed about 35 bugs in obcs_external_fields_load
316    
317    checkpoint55c_post
318    o obcs stuff
319      - new runtime flags useOBCSprescribe, useOBCSbalance
320      - re-arranged obcs_calc
321      - moved exf_getobcs to obcs_prescibe_read
322        obcs_prescibe_read is called after ORLANSKI stuff
323        and independent of it (executable can contain all).
324      - updated obcs_check
325      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
326        These may be necessary only if tangential velocities are
327        prescribed at OB, not sure, needs testing.
328    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
329      which simplifies the calls and passes the ifc check-bounds test
330    
331    checkpoint55b_post
332    o add a 2D scalar, Z location, exchange_2 routine.
333    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
334      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
335      affects advect_cs results (for the wrong reason): update output.txt
336    o use a more standard discretization for biharmonic viscosity ;
337     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
338      affects results of dome set-up: update output.txt
339    o fix gad_advection.F (CubedSphere part), back to version 1.23
340    o fix bug in mom_vi_del2uv.F (CubedSphere part).
341    
342    checkpoint55a_post
343    o merged code to
344      * prescribe/read time-dependent open boundaries
345        (works in conjunction with exf, cal)
346      * sponge layer code for open boundaries
347      * each boundary N/S/E/W now has its own CPP option
348        (healthy for the adjoint)
349    
350    checkpoint55
351    o up-to-date adjoint of previous breaks
352      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
353      - global_ocean_ebm: adjoint still needs fix (TLM ok)
354      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
355      - carbon: * remove tr1-related adjoint verification
356                * add ptracer as control variable
357    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
358      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
359    
360    checkpoint54f_post
361    o in verification/carbin/ remove experiment related to
362      ALLOW_PASSIVE_TRACER (array tr1 etc)
363      code_ad/ input_ad/ results_ad
364    
365    o add two new packages
366      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
367        + subject to optimization (memory)
368      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
369        + subject to reordering (many GOTOs in the original code)
370        + so far opps is called for every (i,j) point, and then operates in
371          the vertical; one may want to reorder the scheme in order operate in
372          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
373          fields)
374    o overhaul of IO so that we now have flags for MDSIO and/or MNC
375      - all verification tests compile and run with linux_ia32_g77
376      - defaults are compatible with current input files--nothing
377        should change if you were not previously using MNC
378      - MNC output has been added in numerous places (eg. timeave)
379        but there are still a few writes not yet do-able with MNC
380        (this is in progress)
381      - flags now allow for either/or/both use of MDSIO and MNC and
382        documentation will soon follow
383      - numerous small formatting cleanups for ProTeX
384    o add version info (via BUILD_INFO.h) to MNC and stdout
385    
386    checkpoint54e_post
387    o add two new packages
388      - pp81 (Packanowski and Philander, 1981), Richardson number and
389        stratification dependent mixing
390      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
391      - these scheme operate in a similar manner as KPP (without ghat, of
392        course), however there is only one diffusivity that is used for both
393        temperature and salinity (and passive tracers)ç
394    o add offline package
395    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
396      provided by Stephanie Dutkiewicz
397    o genmake2: add ability to search for C compilers and cleanup test output
398      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
399    
400    checkpoint54d_post
401    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
402    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
403      leading to additional shift by 5 days each year of integration
404       (i.e. leading to considerable offset over the years)
405    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
406    o start with no AB and no initial filtering (staggerTimeStep):
407      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
408    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
409      (external loading & cpl import/export stay in forward_step.F)
410    o update coupling interface to work with new staggerTimeStep
411    o change MDSIO ptracers_pickup.
412    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
413    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
414    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
415    
416    checkpoint54c_post
417    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
418      this affects (truncation error) output.txt of test-exp:
419       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
420    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
421    o change Qnet to always be the net heat flux, (+upward).
422      affects (truncation error) output of natl_box exp.: updated
423    o define the max number of passive tracers in PTRACERS_SIZE.h
424    o start to test mnc routinely in exp0
425    o add sea-ice loading (sIceLoad) as a new forcing field.
426    
427    checkpoint54b_post
428    o add testreport "-j JOBS" option for parallel builds (tested and pretty
429       impressive on Altix and Opteron systems)
430    o diagnostics can now write NetCDF files through the mnc package
431    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
432    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
433    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
434      affects (truncation error) output of lab_sea & natl_box exp.: updated
435    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
436    
437    checkpoint54a_post
438    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
439    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
440    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
441    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
442      + internal_wave (shift in writing cg2d_ini_res)
443    checkpoint54a_pre
444    
445    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
446      - modified verification/lab_sea and natl_box_adjoint accordingly
447    
448    checkpoint54
449    checkpoint53g_post
450    o prepare splitting of thermodynamics: store convect.counter in common block
451    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
452      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
453    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
454    o new parameter "nShapS": allow to treat differently S from T (nShapT)
455    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
456    o restore adjointability
457    
458    checkpoint53f_post
459    o modifications that affect AIM experiment results (update output.txt):
460      - no advection of S at top interface Nr (pkg/generic_advdiff)
461      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
462    o AIM pkg:
463      - include stability function into surf.Flux derivative relative to Tsurf
464      - calculate clear-sky radiation & surface temp. change (for diagnostics)
465    
466    checkpoint53e_post
467    o merged cylindrical coord configuration
468    o added rotating_tank experiment
469    checkpoint53e_pre
470    
471    checkpoint53d_post
472    o faulks upgraded: re-generate output.txt that have changed:
473       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
474    o Added Bryan and Lewis, 1979, vertical diffusivity profile
475    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
476    o added Sadourny discretization of Coriolis
477      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
478      - re-enabled use of omega3 (useAbsVorticity)
479    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
480      vector-invariant equations
481      - note: does *NOT* yet use same variable visc. for no-slip BC's.
482    o recoded the lateral boundary conditions for non-hydrostatic w, this time
483      hopefully without new bugs
484      - still to do: biharmonic friction for non-hydrostatic w
485    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
486    o regenerated output for global_ocean_ebm (using -ieee)
487    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
488      of mom_common/
489      - simple re-arrangement of instructions within computing loop
490    checkpoint53d_pre
491    
492    checkpoint53c_post
493    o new version of coupler for AIM+thSIce and Ocean models
494     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
495     - land: change Evaporation of snow
496     - aim with thSIce: fix bug in snow-precip.
497    o changes to calc_gw.F
498     - bug fix for w^2 term near the bottom boundary
499     - (hopefully) improve the lateral slip boundary condtions for use with
500        partial/looped cells
501      - because the bug fix changes two verification experiments anyway (exp5
502        and plume on slope), change the lateral boundary condition from half slip
503        to the value of no_slip_sides
504    o ebm package wasnt quite up to the parallel task. Fixed that.
505    o Adjoint of EBM package + verification
506      * TLM OK
507      * ADM not sufficient accuracy yet (needs further testing)
508    
509    checkpoint53b_post
510    o Commiting new energy balance model to repository
511      * package is pkg/ebm
512      * verif. is verification/global_ocean_ebm
513      * references are in ebm_driver.F
514    C      * X. Wang, P. Stone and J. Marotzke, 1999:
515    C        Global thermohaline circulation. Part I:
516    C        Sensitivity to atmospheric moisture transport.
517    C        J. Climate 12(1), 71-82
518    C      * X. Wang, P. Stone and J. Marotzke, 1999:
519    C        Global thermohaline circulation. Part II:
520    C        Sensitivity with interactive transport.
521    C        J. Climate 12(1), 83-91
522    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
523    C        Destabilization of the thermohaline circulation
524    C        by atmospheric eddy transports.
525    C        J. Climate 7(12), 1870-1882
526    o Will need long integration testing.
527    checkpoint53b_pre
528    
529    o created pkg/mom_common in preparation for variable viscosity code
530    o renamed and split ini_mnc_io
531    o pkg/land: only liquid water can diffuse or run-off
532    o AIM using land: soil wetness availability account for snow
533    o added printMapIncludesZeros to EEPARMS namelist
534    
535    checkpoint53a_post
536    o restore TAMC compatiility for exf_constants.h
537      (no usage of _d in .h)
538    o Additional storing in KPP in an attempt to fix
539      TAMC problem with adjoint of KPP code.
540      (no success...)
541      Identical code works fine with TAF.
542    o Fixed verification/natl_box_adjoint experiments.
543      Initial conditions for Experiments 4 and 5 are now
544      set to "SEAICE_initialHEFF=0", which is more reasonable,
545      and hence gives results closer to that of Experiment 2.
546      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
547    
548    checkpoint53
549    o stable checkpoint with up to date adjoint
550      TLM tests only run for 1st grdchk at the moment. Its unclear if
551      this is a code problem or a problem with resetting code for g_
552      variables that is being autogenerated wrong.
553      Otherwise:
554       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
555       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
556         are both still in chaos following their security messes.
557    
558    checkpoint52n_post
559    o various build (mostly genmake2) changes including:
560      - ability to build/run more easily within Cygwin and MacOS X
561      - more complicated Makefiles with a stronger dependence on Gnu Make
562    o pkg/seaice modifications
563      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
564        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
565        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
566      - changed proxy for geostrophic velocity and updated
567        verification/lab_sea/results/* accordingly
568      - removed ADI dynamic solver from pkg/seaice
569      - replaced all occurrences of 1/CSTICE or 1/CSUICE
570        they caused a segmentation fault under certain circumstances
571      - removed unused field WATR
572    o bug fix in exf-package:
573      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
574         now reflect that.
575    o small fixes in the cal-package:
576      - set reference date to first of January for the 'model'-calendar
577      - failing of cal_CheckDate in cal_FullDate now actually results in a
578        warning
579    o small modifications in exf-package to increase flexibility:
580      - change climtempfreeze from a constant to a runtime parameter that
581        is specified in data.exf_clim (default = -1.9)
582      - introduce runtime parameter windstressmax (default = 2.0) that is
583        specified in data.exf
584    o fix in pkg/thsice:
585      - update Evap (Tsf changes) to be consistent with Latent heat flux
586      - maintain snow precipitation unchanged (even if Tsf >=0).
587     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
588    
589    checkpoint52m_post
590    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
591      this does not change any of the results, because myIter=0 in swfrac always
592      lead to jwtype=2 (the default anyway), but the call makes little sense
593      as a default
594    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
595    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
596      atmospheric model (AIM) to use it ; add a "slab ocean" component.
597    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
598    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
599    o extending useSingleCpuIO option to work with new exch2 I/O format
600      - old-style, missing-tile I/O is still accessible by defining CPP
601        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
602    o monitor package can write to NetCDF files and/or STDOUT
603    o fix re-definition bug in MNC_GRID_INIT_ALL()
604    o doc/api_reference added
605      - a framework for building an API Reference Manual using all
606        the "protex" comments embedded in the code
607      - see pkg/generic_advdiff, pkg/mnc for examples
608    o MNC:
609      - make myThid the last argument for all subroutines
610      - new default for the grid files: NO halos
611      - add useMNC and other run-time flags
612      - separate per-file-group handling of the unlimited dimension
613      - early initialization of MNC w/ flags read at the eeboot stage
614        and lookup tables set in initialize_fixed
615      - write all MNC output to a freshly-created directory
616    o thermodynamics sea-ice (thsice) is now tested with testreport.
617    o test exp. advect_cs: use the standard cs32 grid ; update output.
618    o Added functionality to grdchk:
619      pick global i,j,k position (or nearest wet) where to perform check.
620    
621    checkpoint52l_post
622    o new land formulation:
623      a) use ground enthalpy as prognostic variable to ensure exact
624         energy conservation.
625      b) account for water temperature and for latent heat of freezing
626         in all processes (rain, run-off, ground storage)
627      c) compute surface and ground temperature implicitly.
628    o aim_v23 modification for new land model:
629      a) Treat separately land / ocean / sea-ice surface fluxes
630         to allow implicit computation of land & sea-ice surface temp.
631      b) add snow precipitation.
632    checkpoint52l_pre
633    
634    o fix problem (when 1 tile is empty) in min/max monitor.
635    o fix bug in timeAve (u,vZetatave in common block)
636    o no restoring terms under ice for pkg/seaice
637    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
638    o bug fix for pkg/seaice pickups
639    o change MNC call locations and add coordinate attributes
640    o mask vorticity at the corner ; affects global_ocean.cs output
641    o fix ini_curvilinear_grid ; test CS experiments with mpi
642    o aim.5l_cs: modify sea-ice fraction input file ; update output
643    o exf: Adding simple range check routine for exf fields after read
644    
645    checkpoint52k_post
646    o removed top-level directory "diags"
647      - we migrated these functions to pkg/timeave a long time ago
648    o fixed bug introduced in pkg/monitor
649    o accuracy ctrlprec = 32 insuffient for gradient checks using
650      averaged fields (I/O via cost_averages)
651      -> use ctrl.h in active_file*.F to control I/O precision.
652    o paramter list of CALL ADTHE_MAIN_LOOP
653    o added initial do_the_model_io to ecco
654    o set all ...Freq to zero after cost_final
655      taveFreq, dumpFreq, pChkptFreq
656    o MAIN and ECCO differentiability restored
657    
658    checkpoint52j_post
659    o fix nchklev in tamc.h for global_ocean...
660    o Bringing flow and store directives up-to-date
661    o Really weird thing!
662      call do_the_model_io from the_main_loop with parameters
663      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
664      TAF places a faulty re-call of initialise_varia
665      after cost_final call which should not be there!
666    checkpoint52j_pre
667    
668    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
669      error messages
670    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
671    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
672      debug output
673    o modfied mdsio_writefield.F to handle non-global files under exch2
674    o update AIM Cubed-Sphere exp (aim.5l_cs):
675      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
676    o update AIM Equatorial Channel exp:
677      use standard aim_v23 pkg and change the SST fields to be more realistic.
678    o globalFile now works with exch2
679    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
680      mon_vort3.F to make exch2 friendly with >1 tile per cube face
681    o limit timeave output for hi-res integrations
682    
683    checkpoint52i_post
684    o removed CPP_EEOPTIONS.h from verification/*/code
685    o updated the tiling for global_ocean_pressure
686    checkpoint52i_pre
687    
688    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
689      the old pkg/aim).
690    
691    checkpoint52h_pre
692    o shortened offending lines in exch2_send_rx?.template
693    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
694    o genmake2: add build & execute test for NetCDF code
695    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
696      old grid files, moved CPP_EEMACROS.h to pkg/exch2
697    o added useSingleCPUIO flag to monitor.F and mon_out.F
698    o added temporary hack for sea-ice dynamics on the cube:
699      metric terms are ignored and it is assumed that
700      there is no sea-ice on cube faces 1, 2, 4, and 5.
701    
702    checkpoint52f_post
703    o added exch2 cube routines to pkg/exch2
704    o modified hs94.cs-32x32x5 to use it
705    o added new grid files to hs94.cs-32x32x5
706    checkpoint52f_pre
707    
708    checkpoint52e_post
709    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
710      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
711    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
712      to work with implicit vertical advection and AB ;
713    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
714    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
715     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
716    checkpoint52e_pre
717    
718    o fix bug in impldiff when Nr=1 or Nr=2.
719    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
720    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
721    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
722      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
723    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
724    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
725    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
726    
727    checkpoint52d_post
728    o re-tiled many expts to allow comparison in multi-processor mode
729      - updated output accordingly
730      - changed hs94.128x64x5 to use intial T from file rather than use the
731        random number generator
732    o add infrastructure in model routines for fizhi and gridalt packages
733    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
734    o changes to permit hi-res, cubed-sphere, configuration
735      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
736      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
737      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
738        of surface winds for the cube
739      (A verification experiment, based on global_ocean.cs32x15, but with
740       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
741       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
742       complete with example surface forcing files and matlab scripts to look
743       at the output and compare it with that of global_ocean.cs32x15.)
744    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
745       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
746       to conform to the common rule.
747    o check-in the first version of the coupler + interfaces for multi-components
748       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
749       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
750       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
751       - ocean and atmos. share the same horizontal grid (no interpolation).
752       - exchanges between component and coupler is done in forward_step
753    o new verification experiment, cpl_aim+ocn:
754       coupled ocean - AIM atmosphere on cs32 grid.
755    
756    checkpoint52d_pre
757    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
758    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
759    
760    checkpoint52c_post
761    o Fixing OPTIONS files for use of exf:
762      - ALLOW_ECCO not needed
763      - ECCO_CPPOPTIONS.h should not be included from
764        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
765        as has been the case in the past
766      - All cal/exf related options are currently set in
767        single header file. Should remain so until we
768        agree on a consistent new policy.
769    o Removed all CPP options for cal package.
770      cal has no more CPP options.
771    o modified STOREs in GAD_ADVECTION
772    o corrected key comp. for passkey
773    
774    checkpoint52b_post
775    o new version: "thsice" of thermodynamic sea-ice pkg:
776     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
777     - modify fluxes but do not change theta directly;
778     - light cleaning of bulk_force pkg (still needed with thsice).
779     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
780       + output_thsice.txt to test thsice & bulk_force pkgs.
781    o put back grid & coriolis monitor output.
782    checkpoint52b_pre
783    
784    o call "do_the_model_io" at the beginning (=> dump initial state)
785    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
786    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
787      (need info on NUMBER_OF_PTRACERS)
788    o missing PTRACERS headers in some routines
789    o default tamc.h in pkg/autodiff supposed to crash
790      to ensure proper customization
791    
792    checkpoint52a_post
793    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
794      - moved surfaceTendencyTice from pkg/seaice to main code
795      - subroutine FREEZE_SURFACE now limits only surface temperature
796        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
797        => new output.txt for global_ocean.cs32x15 & global_with_exf
798      - keep the old version of FREEZE for backward compatibility;
799        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
800      - corresponding modifs for TAF directives
801    o added surface flux output variables to TIMEAVE_STATVARS
802    o time-averaged output for pkg/ptracers
803    o fix problem with ECCO-related divided adjoint
804      snapshot file was missing some ad-variables,
805      but no warning issued by TAF
806    
807    checkpoint52a_pre
808    o some bug fixes for #undef REAL4_IS_SLOW
809    
810    checkpoint52 = ecco_c52_e35
811    o after testing adjoints of checkpoint51u_post
812    
813    checkpoint51u_post
814    o this is the post-merge tag of the ecco-branch
815      (needs another clean checkout and re-testing)
816    o various natl_box_adjoint configs and results
817      but no input fields
818    o obcs adjoint not yet merged!
819    o adding ECCO global 1x1 and 2x2 degree configs
820    o updated/extended some store directives for seaice
821    o pkg/ecco now containes ecco-specific part of cost function
822    o top level routines the_main_loop, forward_step
823      supersede those in model/src/
824      previous input data.cost now in data.ecco
825      (new namelist ecco_cost_nml)
826    o in ctrl/ cleaned some cross-dependencies and updated CPP options
827    
828    checkpoint51t_post
829    o this is the pre-merge tag of the ecco-branch
830    
831    checkpoint51s_post
832    o cleanup: removed various obsolete #define-s
833    o pkg/grdchk
834      - renamed 'ph-grd 3' to 'grad-res'
835      - merged from ecco-branch
836        (remaining bug fixes for obcs gradient checks)
837      - additional high-precision output for testreport
838        (grep for 'precision_grdchk_result')
839    
840    checkpoint51r_post
841    o cleaned up or removed CPP_OPTIONS.h files
842    o updated results for some of the tests to reflect the new
843      optfiles (-ieee: -O0 instead of -O3)
844    
845    checkpoint51q_post
846    o cd_code:
847      - moved cd_scheme.F -> cd_code_scheme.F
848      - separate read_checkpoint from cd_code_ini_vars.F
849      - separated cd_code part from write_checkpoint
850      - updated AD_SOURCE, generated .flow
851      - added CD_CODE_VARS.h to the_main_loop
852      - Moving cd_code specific store dir.s to pkg/cd_code
853    o ctrl package totally restructured
854      - pack/unpack now optional and decoupled from
855        xx_/adxx_ I/O
856      - ctrl_pack/unpack cleaned
857        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
858      - confined inclusion of AD_CONFIG.h to where necessary.
859    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
860    
861    checkpoint51p_post
862    o create initial cd_code package
863      - WARNING: the initialization of fields within packages
864        is broken because INI_FIELDS (where READ_CHECKPOINT is
865        called) is called *before* PACKAGES_INIT_VARIABLES.
866        This seems to be backwards since
867        1) its important to initially zero the entire field including
868           the "halo" region
869        2) zeroing needs to be done *before* reading pickup info
870           and the pickup call might or might not happen in any
871           particular run
872      - this needs an overhaul for R2
873    o cleanup verification/*/code/GMREDI_OPTIONS.h
874    o cleanup testreport
875    
876    checkpoint51o_post
877    o bringing AD-related verif's up to date with genmake2
878      - carbon/
879      - global_ocean.90x40x15/
880      - hs.94.1x64x5/
881      - (front_relax/ )
882    o (more) consistent directory structure for AD-related verif.'s
883    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
884    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
885    o bug fix in find_alpha.F for MDJWF:
886      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
887        change rho -> rho-rhoConst
888      - replace call find_rho to find_rhonum
889    o initialisation of rFlx extended to full array (required by TAF)
890      and shifted to thermodynamics
891    o removed PTRACERS.h in ptracers routine
892    o added surfacetendencyPtr to S/R parameter list pracers_forcing
893    o Correcting initialisations for fVerU, fVerV.
894    o helping TAF to recognize dependency on kUp for
895      fVerU, fVerV
896    o Replacing delZ by delR in pkg/ctrl/
897    checkpoint51o_pre
898    
899    o undid all of cp51 pending some cleanups and discussion
900    o added the [#include "AD_CONFIG.h"] statement to all files that need
901       it for adjoint/tl #defines
902     o re-worked the build logic in genmake2 to support AD_CONFIG.h
903     o removed tools/genmake since it no longer works
904    
905    checkpoint51n_post
906    o modifications to make FREEZE flux visible to pkg/kpp
907      - moved surfaceTendencyTice from pkg/seaice to main code
908      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
909      - subroutine FREEZE now limits only surface temperature
910        (this means new output.txt for global_ocean.90x40x15,
911         global_ocean.cs32x15, and global_with_exf)
912    o added surface flux output variables to TIMEAVE_STATVARS
913    
914    checkpoint51n_pre
915  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
916  o added [#include "AD_CONFIG.h"] to all files that use the following  o added [#include "AD_CONFIG.h"] to all files that use the following
917    defines:    defines:

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