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revision 1.145 by heimbach, Fri Mar 21 23:20:36 2003 UTC revision 1.423 by edhill, Mon Dec 20 17:10:27 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o fix MNC coordinate variables so that they now contain per-face index
7      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
8      general, EXCH2 grids are only aligned to a "local" coordinate system
9    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
10    o Implement instantaneous output within pkg diagnostics:
11      setting a negative frequency in data.diagnostics produces
12     "snap-shot" output (as opposed to time-average if freq > 0)
13    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
14      NOTE: change ptracer diagnostics name: use 2 characters to work with
15            more than 9 tracers. Add also diagnostics of advect & diffus flux.
16    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
17      becomes the coordinate variable for the 'T' dimension
18    o add CF-style coordinate variables to MNC
19      - just a first cut:  numbers are meaningless on the cubesphere and
20        missing along the T axis but otherwise it works!
21    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
22    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
23    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
24      this is based directly on what the model compute, so that the content of
25      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
26    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
27    o clean up build options files for SunOS, in particular
28      - remove -traditional from xmakedepend
29      - change -xarch=v9 to -xarch=native for f77
30      - restore use of make (not gmake)
31      - add CC=gcc if using g77
32    o changes per discussion of AM, JMC, & EH3 today:
33      - move redundant "grid" variables out of "state" -- in preparation of
34        creating proper CF-style coordinate variables and in recognition
35        that any/all grid variables can be easily copied (eg. w/NCO) from
36        the grid files into any of the other NetCDF files
37      - *always* output grid variables with MDSIO (this will eventually be
38        changed)
39      - output MNC grid file if useMNC is true
40    o every instance of _END_MASTER() has been found and replaced with
41      _END_MASTER( myThid ) in order to satisfy certain picky Sun
42      preprocessors
43    o re-arrange diagnostics pkg initialisation:
44     - allow each package to extend the available diagnostics list
45     - add some checking and fix small problems (multi-threaded, ...)
46     - new S/R diagnostics_fill (replace fill_diagnostics):
47       look through the short list of active diag. (instead of the long list)
48       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
49    
50    checkpoint57a_post
51    o this set of changes restores TAMC compatibility
52      tested for global_ocean.90x40x15 adjoint on trough
53      (what a pain)
54    
55    checkpoint57a_pre
56    o some modifs in tools/build_options for sunos
57    o call ctrl_pack for ctrl at end for optimcycle=0
58    
59    checkpoint57
60    o add horizontal bi-harmonic viscosity for vertical velocity
61      - new parameter viscA4W (defaults to viscA4)
62      - affects only non-hydrostatic code
63      - to be done: no-slip lateral boundary conditions
64    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
65    o implement Implicit Vertical advection for pTracers
66    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
67      (implemented also for implicit vertical diffusion & advection)
68    o OBCS: extend application of tracer open boundary conditions
69      to a strip beyond the boundary of width Olx/Oly
70    o add call monitor to TAF set of required calls (flow directives)
71      and include in natl_box_adjoint
72    o untangle a few ifdefs related to cost, ctrl, autodiff
73      untangel a few ALLOW_ECCO_OPTIMIZATION
74    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
75      (theta2, salt2 in ecco_cost_weights)
76    
77    checkpoint56c_post
78    o OBCS as control variables
79      - update ctrl_ad_diff.list, obcs_ad_diff.list
80      - remove balance of obcs controls from default
81      - fix index bug nobcs in ctrl_init
82      - fix dummy fields filen in ctrl_pack
83      - add dummy weights for obcs
84    o lsopt: comment out fort.94 output
85    o optim:
86      - remove unnecessary header files
87      - adjusted namelists
88      - add xerbla.F to Makefile
89    o exf:
90      - multiple modifications of exf_check_range
91      - unit change in exf_init_runoff from [m/year] to [m/s]
92    o mdsio:
93      - i/o-vector change debugLevel from debLevA to debLevB
94    
95    checkpoint56b_post
96    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
97      is called from DO_THE_MODEL_IO
98      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
99      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
100      - clean up PTRACERS_WRITE_TIMEAVE a little
101    o add another verification experiment that tests both the cfc-pkg and
102      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
103      reactive tendencies treated inline with regular timestepping
104    o testreport previously did a lousy job of comparing small numbers, so
105      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
106      implemented in the little c-progam tmp_cmpnum.c which is embedded in
107      testreport.
108    o ptracers_monitor: bug fix for MPI
109    
110    checkpoint56a_post
111    o GCHEM: finish reorganizating the package
112      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
113        (introduces another 3D-array for each passive tracer, but only if
114        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
115        gchemTendency is not needed because the timestep is done separately)
116      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
117      - GCHEM is now---more or less cleanly---separate from PTRACERS
118      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
119        so clear to me how that should be done in a general way.
120    o CFC: improve formatting of output in CFC_ATMOS
121    o PTRACERS:
122      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
123        that ALL experiments with ptracers enable can be checked. This makes
124        GCHEM_MONITOR obsolete.
125      - include a runtime parameter PTRACERS_monitorFreq that defaults to
126        monitorFreq
127      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
128    o add PTRACERS (PTR0[1-5]) to testreport output
129    o exf_check_range:
130      * default changed to .TRUE.
131      * will check values for niter0 if debLevA, every timestep if debLevB
132      * STOP in exf_check_range if 'out of range'
133      * range chosen generous to allow for potential extema
134      TBD: a version with stricter range
135           permitted range would be runtime parameters
136    o GMredi:
137      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
138      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
139      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
140    o GCHEM:
141      - move call to GCHEM_FORCING_SEP, so that it is now called before
142        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
143      - introduced a useGCHEM runtime flag and applied it everywhere.
144      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
145        this flag is now only visible within GCHEM-pkg routines.
146      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
147        be replaced by a 3D array that is computed before thermodynamics; for
148        this, the tracer ID iTracer had to be included into the parameter list
149        of ptracers_forcing
150      - set up forward_step to call gchem_forcing, that will replace
151        gchem_forcing_int in ptracers_forcing
152      - cleaning up
153    o small cleaning of exch2: remove files that are also in eesupp/src
154    
155    checkpoint56
156    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
157    o mnc: cleanup "full" files--fixes out-of-memory problem
158    o ECCO-GODAE
159      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
160      * fully merged and updated from SIO code
161        windstress sign change affects
162        - exf_inscal_[u/v]stress
163        - sign of xx_tau[u/v] adjustments
164        - signs in cost_scat
165      * ctrl_get_gen: avoid update of tau[u/v] for first few days
166      * natl_box_adjoint updated and compressed
167      * 2-level checkpoint switch added
168        (tested in EXP. 1 of natl_box_adjoint)
169      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
170    o SVD
171      * first complete, non-hacked version for SVD calculations
172      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
173        performed via direct access files admtlm_vector.it????
174        (via ctrl_[un]pack)
175      * optimcycle is used for ARPACK iteration counter
176        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
177      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
178        and add linear transforms where necessary
179      * controls are initial/final SST, SSS (can be extended; need to check
180        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
181    o mdsio: filename info to both stderr, stdout
182    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
183      from sign change
184    
185    checkpoint55j_post
186    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
187      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
188    o add consistent build directories and .cvsignore files to verification
189    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
190    o make all subroutines 30 or less characters in length for certain older
191      compilers to work (a thorough search only turns up two routines in
192      pkg/ptracers)
193    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
194      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
195    
196    checkpoint55i_post
197    o change arrays for total vertical diffusivity (2.D if explicit,
198      3.D if implicit) ; each ptracer uses its own background value.
199    o added mnc/NetCDF output capability to ocn_compon_interf
200      - added bits to verification/cpl_aim+ocn so that it can run on
201        ITRDA and other clusters without the mpirun "-wd" option
202    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
203      configuration
204    o give MNC the ability to create additional files rather than
205      exceeding a specified file size limit "MNC_MAX_FILESIZE"
206      - the default is just less than 2GB which is a practical limit
207        on many systems
208    o Compute the non-local term using either KPP vertical diffusivity (=default)
209       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
210    
211    checkpoint55h_post
212    o add verification test "vermix"
213    o remove all the *_ioinc flags and replace with the single global
214      outputTypesInclusive flag
215    o allow to set a vertical profile of vertical diffusivity for T & S
216    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
217    o useMNC moved from data.mnc to data.pkg
218    
219    checkpoint55g_post
220    o Renaming carbon AD experiments to comply with testreport conventions
221    o Updating adjoint of Held-Suarez hs94.1x64x5
222    o Fixing directives for non-ECCO forward_step, after ECCO directives
223      have been fixed to avoid recomp. of do_oceanic_phys
224      Works well for global_ocean.90x40x15,
225      but recomp. issue remains for carbon
226    o Updating adjoint output for natl_box_adjoint after
227      pkg/ecco has been modified (see taga c55d_post)
228    
229    checkpoint55f_post
230    o rename to timeave_init_fixed
231    
232    checkpoint55e_post
233    o some delicate re-shuffle of store directives to avoid one
234      extra call of do_oceanic_physics
235      affects ecco_the_main_loop.F, do_oceanic_physics.F
236      checkpoint_lev1_directives.h
237    o NB: this may break global_ocean adjoint temporarily,
238      but it is clear how to fix it. Will do later, need this now.
239    
240    checkpoint55d_post
241    o ECCO specific cost function terms (up-to-date with 1x1 runs)
242    o ecco_cost_weights is modified to 1x1 runs
243    o modifs to allow observations to be read in as
244      single file or yearly files
245    o enable to read exf forcing fields as either
246      single file or yearly files (flag useExfYearlyFields)
247    checkpoint55d_pre
248    
249    o switch between 2-level and 3-level checkpointing
250    o add ability of MNC to write local and "partial" (eg. 2D slices where
251      the full 3D field is never actually stored) arrays to NetCDF files
252      with the correct (that is, the complete multi-dimensional) set of
253      array indicies
254      - used in mom_vecinv() to write the diagFreq output
255      - tested (demonstrated) in verification/aim.5l_cs
256    o further mnc-ification
257      - add verification/lab_sea to the list with mnc setups
258      - fix undefined mnc v-names in cd_code
259      - add kpp to mnc output (both snapshot and timeave)
260    o non-hydrostatic code
261      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
262        in calc_gw.F
263      - defaults to viscAh
264      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
265        friction or Leith) in non-hydrostatic mode, as long as there is
266        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
267    o pkg/cost
268      extend simple cost functions to treat time mean quantities
269      (T,U,V) via cost_accumulate_state from cost_tile
270    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
271        be 2 times larger than the minimum size the advection scheme requires.
272        now get a perfect conservation of salt in advect_cs test-exp (updated)
273    o GGL90 (Gaspar's TKE mixed layer)
274      - add horizontal diffusion of TKE, requires exchanges in
275        do_fields_blocking_exchanges, horizontal diffusivity is zero by
276        default. In OPA there is no horizontal diffusion of TKE but the
277        mixing coefficients are computed from a horizontal average of TKE of
278        6 points or so. I think that diffusion has a little more physical
279        justification.
280      - clean up ggl90_calc in the hope of reducing memory usage (this hope
281        was in vain)
282      - mask tke-variable in ggl90_init
283    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
284    o fix biharmonic diffusion on CS-grid.
285    o more obcs stuff
286      - added obcs_external_fields_load as an alternative to the EXF-pkg option
287        for reading boundary values. This routine is called from
288        obcs_prescribe_read
289      - updated obcs_check
290      - changed sponge layer relaxation parameter units for days to seconds
291      - turned off sponge layer by default
292      - changed argument list of OBCS_CALC to myTime+deltaTclock
293      - fixed about 35 bugs in obcs_external_fields_load
294    
295    checkpoint55c_post
296    o obcs stuff
297      - new runtime flags useOBCSprescribe, useOBCSbalance
298      - re-arranged obcs_calc
299      - moved exf_getobcs to obcs_prescibe_read
300        obcs_prescibe_read is called after ORLANSKI stuff
301        and independent of it (executable can contain all).
302      - updated obcs_check
303      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
304        These may be necessary only if tangential velocities are
305        prescribed at OB, not sure, needs testing.
306    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
307      which simplifies the calls and passes the ifc check-bounds test
308    
309    checkpoint55b_post
310    o add a 2D scalar, Z location, exchange_2 routine.
311    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
312      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
313      affects advect_cs results (for the wrong reason): update output.txt
314    o use a more standard discretization for biharmonic viscosity ;
315     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
316      affects results of dome set-up: update output.txt
317    o fix gad_advection.F (CubedSphere part), back to version 1.23
318    o fix bug in mom_vi_del2uv.F (CubedSphere part).
319    
320    checkpoint55a_post
321    o merged code to
322      * prescribe/read time-dependent open boundaries
323        (works in conjunction with exf, cal)
324      * sponge layer code for open boundaries
325      * each boundary N/S/E/W now has its own CPP option
326        (healthy for the adjoint)
327    
328    checkpoint55
329    o up-to-date adjoint of previous breaks
330      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
331      - global_ocean_ebm: adjoint still needs fix (TLM ok)
332      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
333      - carbon: * remove tr1-related adjoint verification
334                * add ptracer as control variable
335    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
336      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
337    
338    checkpoint54f_post
339    o in verification/carbin/ remove experiment related to
340      ALLOW_PASSIVE_TRACER (array tr1 etc)
341      code_ad/ input_ad/ results_ad
342    
343    o add two new packages
344      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
345        + subject to optimization (memory)
346      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
347        + subject to reordering (many GOTOs in the original code)
348        + so far opps is called for every (i,j) point, and then operates in
349          the vertical; one may want to reorder the scheme in order operate in
350          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
351          fields)
352    o overhaul of IO so that we now have flags for MDSIO and/or MNC
353      - all verification tests compile and run with linux_ia32_g77
354      - defaults are compatible with current input files--nothing
355        should change if you were not previously using MNC
356      - MNC output has been added in numerous places (eg. timeave)
357        but there are still a few writes not yet do-able with MNC
358        (this is in progress)
359      - flags now allow for either/or/both use of MDSIO and MNC and
360        documentation will soon follow
361      - numerous small formatting cleanups for ProTeX
362    o add version info (via BUILD_INFO.h) to MNC and stdout
363    
364    checkpoint54e_post
365    o add two new packages
366      - pp81 (Packanowski and Philander, 1981), Richardson number and
367        stratification dependent mixing
368      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
369      - these scheme operate in a similar manner as KPP (without ghat, of
370        course), however there is only one diffusivity that is used for both
371        temperature and salinity (and passive tracers)ç
372    o add offline package
373    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
374      provided by Stephanie Dutkiewicz
375    o genmake2: add ability to search for C compilers and cleanup test output
376      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
377    
378    checkpoint54d_post
379    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
380    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
381      leading to additional shift by 5 days each year of integration
382       (i.e. leading to considerable offset over the years)
383    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
384    o start with no AB and no initial filtering (staggerTimeStep):
385      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
386    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
387      (external loading & cpl import/export stay in forward_step.F)
388    o update coupling interface to work with new staggerTimeStep
389    o change MDSIO ptracers_pickup.
390    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
391    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
392    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
393    
394    checkpoint54c_post
395    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
396      this affects (truncation error) output.txt of test-exp:
397       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
398    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
399    o change Qnet to always be the net heat flux, (+upward).
400      affects (truncation error) output of natl_box exp.: updated
401    o define the max number of passive tracers in PTRACERS_SIZE.h
402    o start to test mnc routinely in exp0
403    o add sea-ice loading (sIceLoad) as a new forcing field.
404    
405    checkpoint54b_post
406    o add testreport "-j JOBS" option for parallel builds (tested and pretty
407       impressive on Altix and Opteron systems)
408    o diagnostics can now write NetCDF files through the mnc package
409    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
410    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
411    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
412      affects (truncation error) output of lab_sea & natl_box exp.: updated
413    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
414    
415    checkpoint54a_post
416    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
417    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
418    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
419    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
420      + internal_wave (shift in writing cg2d_ini_res)
421    checkpoint54a_pre
422    
423    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
424      - modified verification/lab_sea and natl_box_adjoint accordingly
425    
426    checkpoint54
427    checkpoint53g_post
428    o prepare splitting of thermodynamics: store convect.counter in common block
429    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
430      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
431    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
432    o new parameter "nShapS": allow to treat differently S from T (nShapT)
433    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
434    o restore adjointability
435    
436    checkpoint53f_post
437    o modifications that affect AIM experiment results (update output.txt):
438      - no advection of S at top interface Nr (pkg/generic_advdiff)
439      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
440    o AIM pkg:
441      - include stability function into surf.Flux derivative relative to Tsurf
442      - calculate clear-sky radiation & surface temp. change (for diagnostics)
443    
444    checkpoint53e_post
445    o merged cylindrical coord configuration
446    o added rotating_tank experiment
447    checkpoint53e_pre
448    
449    checkpoint53d_post
450    o faulks upgraded: re-generate output.txt that have changed:
451       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
452    o Added Bryan and Lewis, 1979, vertical diffusivity profile
453    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
454    o added Sadourny discretization of Coriolis
455      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
456      - re-enabled use of omega3 (useAbsVorticity)
457    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
458      vector-invariant equations
459      - note: does *NOT* yet use same variable visc. for no-slip BC's.
460    o recoded the lateral boundary conditions for non-hydrostatic w, this time
461      hopefully without new bugs
462      - still to do: biharmonic friction for non-hydrostatic w
463    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
464    o regenerated output for global_ocean_ebm (using -ieee)
465    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
466      of mom_common/
467      - simple re-arrangement of instructions within computing loop
468    checkpoint53d_pre
469    
470    checkpoint53c_post
471    o new version of coupler for AIM+thSIce and Ocean models
472     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
473     - land: change Evaporation of snow
474     - aim with thSIce: fix bug in snow-precip.
475    o changes to calc_gw.F
476     - bug fix for w^2 term near the bottom boundary
477     - (hopefully) improve the lateral slip boundary condtions for use with
478        partial/looped cells
479      - because the bug fix changes two verification experiments anyway (exp5
480        and plume on slope), change the lateral boundary condition from half slip
481        to the value of no_slip_sides
482    o ebm package wasnt quite up to the parallel task. Fixed that.
483    o Adjoint of EBM package + verification
484      * TLM OK
485      * ADM not sufficient accuracy yet (needs further testing)
486    
487    checkpoint53b_post
488    o Commiting new energy balance model to repository
489      * package is pkg/ebm
490      * verif. is verification/global_ocean_ebm
491      * references are in ebm_driver.F
492    C      * X. Wang, P. Stone and J. Marotzke, 1999:
493    C        Global thermohaline circulation. Part I:
494    C        Sensitivity to atmospheric moisture transport.
495    C        J. Climate 12(1), 71-82
496    C      * X. Wang, P. Stone and J. Marotzke, 1999:
497    C        Global thermohaline circulation. Part II:
498    C        Sensitivity with interactive transport.
499    C        J. Climate 12(1), 83-91
500    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
501    C        Destabilization of the thermohaline circulation
502    C        by atmospheric eddy transports.
503    C        J. Climate 7(12), 1870-1882
504    o Will need long integration testing.
505    checkpoint53b_pre
506    
507    o created pkg/mom_common in preparation for variable viscosity code
508    o renamed and split ini_mnc_io
509    o pkg/land: only liquid water can diffuse or run-off
510    o AIM using land: soil wetness availability account for snow
511    o added printMapIncludesZeros to EEPARMS namelist
512    
513    checkpoint53a_post
514    o restore TAMC compatiility for exf_constants.h
515      (no usage of _d in .h)
516    o Additional storing in KPP in an attempt to fix
517      TAMC problem with adjoint of KPP code.
518      (no success...)
519      Identical code works fine with TAF.
520    o Fixed verification/natl_box_adjoint experiments.
521      Initial conditions for Experiments 4 and 5 are now
522      set to "SEAICE_initialHEFF=0", which is more reasonable,
523      and hence gives results closer to that of Experiment 2.
524      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
525    
526    checkpoint53
527    o stable checkpoint with up to date adjoint
528      TLM tests only run for 1st grdchk at the moment. Its unclear if
529      this is a code problem or a problem with resetting code for g_
530      variables that is being autogenerated wrong.
531      Otherwise:
532       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
533       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
534         are both still in chaos following their security messes.
535    
536    checkpoint52n_post
537    o various build (mostly genmake2) changes including:
538      - ability to build/run more easily within Cygwin and MacOS X
539      - more complicated Makefiles with a stronger dependence on Gnu Make
540    o pkg/seaice modifications
541      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
542        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
543        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
544      - changed proxy for geostrophic velocity and updated
545        verification/lab_sea/results/* accordingly
546      - removed ADI dynamic solver from pkg/seaice
547      - replaced all occurrences of 1/CSTICE or 1/CSUICE
548        they caused a segmentation fault under certain circumstances
549      - removed unused field WATR
550    o bug fix in exf-package:
551      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
552         now reflect that.
553    o small fixes in the cal-package:
554      - set reference date to first of January for the 'model'-calendar
555      - failing of cal_CheckDate in cal_FullDate now actually results in a
556        warning
557    o small modifications in exf-package to increase flexibility:
558      - change climtempfreeze from a constant to a runtime parameter that
559        is specified in data.exf_clim (default = -1.9)
560      - introduce runtime parameter windstressmax (default = 2.0) that is
561        specified in data.exf
562    o fix in pkg/thsice:
563      - update Evap (Tsf changes) to be consistent with Latent heat flux
564      - maintain snow precipitation unchanged (even if Tsf >=0).
565     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
566    
567    checkpoint52m_post
568    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
569      this does not change any of the results, because myIter=0 in swfrac always
570      lead to jwtype=2 (the default anyway), but the call makes little sense
571      as a default
572    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
573    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
574      atmospheric model (AIM) to use it ; add a "slab ocean" component.
575    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
576    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
577    o extending useSingleCpuIO option to work with new exch2 I/O format
578      - old-style, missing-tile I/O is still accessible by defining CPP
579        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
580    o monitor package can write to NetCDF files and/or STDOUT
581    o fix re-definition bug in MNC_GRID_INIT_ALL()
582    o doc/api_reference added
583      - a framework for building an API Reference Manual using all
584        the "protex" comments embedded in the code
585      - see pkg/generic_advdiff, pkg/mnc for examples
586    o MNC:
587      - make myThid the last argument for all subroutines
588      - new default for the grid files: NO halos
589      - add useMNC and other run-time flags
590      - separate per-file-group handling of the unlimited dimension
591      - early initialization of MNC w/ flags read at the eeboot stage
592        and lookup tables set in initialize_fixed
593      - write all MNC output to a freshly-created directory
594    o thermodynamics sea-ice (thsice) is now tested with testreport.
595    o test exp. advect_cs: use the standard cs32 grid ; update output.
596    o Added functionality to grdchk:
597      pick global i,j,k position (or nearest wet) where to perform check.
598    
599    checkpoint52l_post
600    o new land formulation:
601      a) use ground enthalpy as prognostic variable to ensure exact
602         energy conservation.
603      b) account for water temperature and for latent heat of freezing
604         in all processes (rain, run-off, ground storage)
605      c) compute surface and ground temperature implicitly.
606    o aim_v23 modification for new land model:
607      a) Treat separately land / ocean / sea-ice surface fluxes
608         to allow implicit computation of land & sea-ice surface temp.
609      b) add snow precipitation.
610    checkpoint52l_pre
611    
612    o fix problem (when 1 tile is empty) in min/max monitor.
613    o fix bug in timeAve (u,vZetatave in common block)
614    o no restoring terms under ice for pkg/seaice
615    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
616    o bug fix for pkg/seaice pickups
617    o change MNC call locations and add coordinate attributes
618    o mask vorticity at the corner ; affects global_ocean.cs output
619    o fix ini_curvilinear_grid ; test CS experiments with mpi
620    o aim.5l_cs: modify sea-ice fraction input file ; update output
621    o exf: Adding simple range check routine for exf fields after read
622    
623    checkpoint52k_post
624    o removed top-level directory "diags"
625      - we migrated these functions to pkg/timeave a long time ago
626    o fixed bug introduced in pkg/monitor
627    o accuracy ctrlprec = 32 insuffient for gradient checks using
628      averaged fields (I/O via cost_averages)
629      -> use ctrl.h in active_file*.F to control I/O precision.
630    o paramter list of CALL ADTHE_MAIN_LOOP
631    o added initial do_the_model_io to ecco
632    o set all ...Freq to zero after cost_final
633      taveFreq, dumpFreq, pChkptFreq
634    o MAIN and ECCO differentiability restored
635    
636    checkpoint52j_post
637    o fix nchklev in tamc.h for global_ocean...
638    o Bringing flow and store directives up-to-date
639    o Really weird thing!
640      call do_the_model_io from the_main_loop with parameters
641      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
642      TAF places a faulty re-call of initialise_varia
643      after cost_final call which should not be there!
644    checkpoint52j_pre
645    
646    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
647      error messages
648    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
649    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
650      debug output
651    o modfied mdsio_writefield.F to handle non-global files under exch2
652    o update AIM Cubed-Sphere exp (aim.5l_cs):
653      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
654    o update AIM Equatorial Channel exp:
655      use standard aim_v23 pkg and change the SST fields to be more realistic.
656    o globalFile now works with exch2
657    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
658      mon_vort3.F to make exch2 friendly with >1 tile per cube face
659    o limit timeave output for hi-res integrations
660    
661    checkpoint52i_post
662    o removed CPP_EEOPTIONS.h from verification/*/code
663    o updated the tiling for global_ocean_pressure
664    checkpoint52i_pre
665    
666    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
667      the old pkg/aim).
668    
669    checkpoint52h_pre
670    o shortened offending lines in exch2_send_rx?.template
671    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
672    o genmake2: add build & execute test for NetCDF code
673    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
674      old grid files, moved CPP_EEMACROS.h to pkg/exch2
675    o added useSingleCPUIO flag to monitor.F and mon_out.F
676    o added temporary hack for sea-ice dynamics on the cube:
677      metric terms are ignored and it is assumed that
678      there is no sea-ice on cube faces 1, 2, 4, and 5.
679    
680    checkpoint52f_post
681    o added exch2 cube routines to pkg/exch2
682    o modified hs94.cs-32x32x5 to use it
683    o added new grid files to hs94.cs-32x32x5
684    checkpoint52f_pre
685    
686    checkpoint52e_post
687    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
688      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
689    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
690      to work with implicit vertical advection and AB ;
691    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
692    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
693     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
694    checkpoint52e_pre
695    
696    o fix bug in impldiff when Nr=1 or Nr=2.
697    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
698    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
699    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
700      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
701    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
702    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
703    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
704    
705    checkpoint52d_post
706    o re-tiled many expts to allow comparison in multi-processor mode
707      - updated output accordingly
708      - changed hs94.128x64x5 to use intial T from file rather than use the
709        random number generator
710    o add infrastructure in model routines for fizhi and gridalt packages
711    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
712    o changes to permit hi-res, cubed-sphere, configuration
713      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
714      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
715      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
716        of surface winds for the cube
717      (A verification experiment, based on global_ocean.cs32x15, but with
718       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
719       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
720       complete with example surface forcing files and matlab scripts to look
721       at the output and compare it with that of global_ocean.cs32x15.)
722    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
723       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
724       to conform to the common rule.
725    o check-in the first version of the coupler + interfaces for multi-components
726       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
727       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
728       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
729       - ocean and atmos. share the same horizontal grid (no interpolation).
730       - exchanges between component and coupler is done in forward_step
731    o new verification experiment, cpl_aim+ocn:
732       coupled ocean - AIM atmosphere on cs32 grid.
733    
734    checkpoint52d_pre
735    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
736    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
737    
738    checkpoint52c_post
739    o Fixing OPTIONS files for use of exf:
740      - ALLOW_ECCO not needed
741      - ECCO_CPPOPTIONS.h should not be included from
742        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
743        as has been the case in the past
744      - All cal/exf related options are currently set in
745        single header file. Should remain so until we
746        agree on a consistent new policy.
747    o Removed all CPP options for cal package.
748      cal has no more CPP options.
749    o modified STOREs in GAD_ADVECTION
750    o corrected key comp. for passkey
751    
752    checkpoint52b_post
753    o new version: "thsice" of thermodynamic sea-ice pkg:
754     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
755     - modify fluxes but do not change theta directly;
756     - light cleaning of bulk_force pkg (still needed with thsice).
757     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
758       + output_thsice.txt to test thsice & bulk_force pkgs.
759    o put back grid & coriolis monitor output.
760    checkpoint52b_pre
761    
762    o call "do_the_model_io" at the beginning (=> dump initial state)
763    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
764    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
765      (need info on NUMBER_OF_PTRACERS)
766    o missing PTRACERS headers in some routines
767    o default tamc.h in pkg/autodiff supposed to crash
768      to ensure proper customization
769    
770    checkpoint52a_post
771    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
772      - moved surfaceTendencyTice from pkg/seaice to main code
773      - subroutine FREEZE_SURFACE now limits only surface temperature
774        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
775        => new output.txt for global_ocean.cs32x15 & global_with_exf
776      - keep the old version of FREEZE for backward compatibility;
777        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
778      - corresponding modifs for TAF directives
779    o added surface flux output variables to TIMEAVE_STATVARS
780    o time-averaged output for pkg/ptracers
781    o fix problem with ECCO-related divided adjoint
782      snapshot file was missing some ad-variables,
783      but no warning issued by TAF
784    
785    checkpoint52a_pre
786    o some bug fixes for #undef REAL4_IS_SLOW
787    
788    checkpoint52 = ecco_c52_e35
789    o after testing adjoints of checkpoint51u_post
790    
791    checkpoint51u_post
792    o this is the post-merge tag of the ecco-branch
793      (needs another clean checkout and re-testing)
794    o various natl_box_adjoint configs and results
795      but no input fields
796    o obcs adjoint not yet merged!
797    o adding ECCO global 1x1 and 2x2 degree configs
798    o updated/extended some store directives for seaice
799    o pkg/ecco now containes ecco-specific part of cost function
800    o top level routines the_main_loop, forward_step
801      supersede those in model/src/
802      previous input data.cost now in data.ecco
803      (new namelist ecco_cost_nml)
804    o in ctrl/ cleaned some cross-dependencies and updated CPP options
805    
806    checkpoint51t_post
807    o this is the pre-merge tag of the ecco-branch
808    
809    checkpoint51s_post
810    o cleanup: removed various obsolete #define-s
811    o pkg/grdchk
812      - renamed 'ph-grd 3' to 'grad-res'
813      - merged from ecco-branch
814        (remaining bug fixes for obcs gradient checks)
815      - additional high-precision output for testreport
816        (grep for 'precision_grdchk_result')
817    
818    checkpoint51r_post
819    o cleaned up or removed CPP_OPTIONS.h files
820    o updated results for some of the tests to reflect the new
821      optfiles (-ieee: -O0 instead of -O3)
822    
823    checkpoint51q_post
824    o cd_code:
825      - moved cd_scheme.F -> cd_code_scheme.F
826      - separate read_checkpoint from cd_code_ini_vars.F
827      - separated cd_code part from write_checkpoint
828      - updated AD_SOURCE, generated .flow
829      - added CD_CODE_VARS.h to the_main_loop
830      - Moving cd_code specific store dir.s to pkg/cd_code
831    o ctrl package totally restructured
832      - pack/unpack now optional and decoupled from
833        xx_/adxx_ I/O
834      - ctrl_pack/unpack cleaned
835        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
836      - confined inclusion of AD_CONFIG.h to where necessary.
837    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
838    
839    checkpoint51p_post
840    o create initial cd_code package
841      - WARNING: the initialization of fields within packages
842        is broken because INI_FIELDS (where READ_CHECKPOINT is
843        called) is called *before* PACKAGES_INIT_VARIABLES.
844        This seems to be backwards since
845        1) its important to initially zero the entire field including
846           the "halo" region
847        2) zeroing needs to be done *before* reading pickup info
848           and the pickup call might or might not happen in any
849           particular run
850      - this needs an overhaul for R2
851    o cleanup verification/*/code/GMREDI_OPTIONS.h
852    o cleanup testreport
853    
854    checkpoint51o_post
855    o bringing AD-related verif's up to date with genmake2
856      - carbon/
857      - global_ocean.90x40x15/
858      - hs.94.1x64x5/
859      - (front_relax/ )
860    o (more) consistent directory structure for AD-related verif.'s
861    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
862    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
863    o bug fix in find_alpha.F for MDJWF:
864      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
865        change rho -> rho-rhoConst
866      - replace call find_rho to find_rhonum
867    o initialisation of rFlx extended to full array (required by TAF)
868      and shifted to thermodynamics
869    o removed PTRACERS.h in ptracers routine
870    o added surfacetendencyPtr to S/R parameter list pracers_forcing
871    o Correcting initialisations for fVerU, fVerV.
872    o helping TAF to recognize dependency on kUp for
873      fVerU, fVerV
874    o Replacing delZ by delR in pkg/ctrl/
875    checkpoint51o_pre
876    
877    o undid all of cp51 pending some cleanups and discussion
878    o added the [#include "AD_CONFIG.h"] statement to all files that need
879       it for adjoint/tl #defines
880     o re-worked the build logic in genmake2 to support AD_CONFIG.h
881     o removed tools/genmake since it no longer works
882    
883    checkpoint51n_post
884    o modifications to make FREEZE flux visible to pkg/kpp
885      - moved surfaceTendencyTice from pkg/seaice to main code
886      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
887      - subroutine FREEZE now limits only surface temperature
888        (this means new output.txt for global_ocean.90x40x15,
889         global_ocean.cs32x15, and global_with_exf)
890    o added surface flux output variables to TIMEAVE_STATVARS
891    
892    checkpoint51n_pre
893    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
894    o added [#include "AD_CONFIG.h"] to all files that use the following
895      defines:
896      - ALLOW_ADJOINT_RUN
897      - ALLOW_TANGENTLINEAR_RUN
898      - ALLOW_ECCO_OPTIMIZATION
899    
900    checkpoint51m_post
901    o incorporating changes to get TAMC/TAF working in genmake2
902      - added new TAMC/TAF targets to the Makefile
903      - various cleanups related to package handling
904      - these changes should have no impact on the forward model
905    
906    checkpoint51l_post
907    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
908     - faster algorithm for cal_addtime.F
909     - higher precision arithmetic, where needed
910     - pkg/exf *startdate variables changed from calendar date to
911       model integration time
912    
913    checkpoint51l_pre
914    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
915    o enable to apply restoring on S & T only in a latitude band.
916    o update output (external_forcing_surf modif. change truncation errors)
917       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
918    
919    checkpoint51k_post
920    o change default to: useNHMTerms=.FALSE.
921     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
922       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
923     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
924        exp1, ideal_2D_oce
925     - change data file of oceanic exp (leave the results unchanged for now)
926       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
927    o set gravitySign automatically according to the vertical coordinate used
928      (and change sign: back to "logical" value: +1 when R increases downward)
929    o added an include barrier to the default CPP_OPTIONS.h and
930      removed the #include "PACKAGES_CONFIG.h" from it
931    o fix a bug in mom_fluxform (from chk51j_post)
932    
933    checkpoint51j_post
934    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
935    o adjusted some flow directives (dynamics, thermodynamics)
936    o added cubed-sphere case to test cost function
937    o heckpoint_lev?_directives.h now include
938      pkg-specific directives, whenever those are enabled.
939    o Moving pkg-specific flow directives to corresponding pkg
940      Moving pkg-specific differentiation list to corresponding pkg
941      Moving pkg-specific checkpoint-lev storing to corresponding pkg
942      ---> conventions are
943           - pkg_ad.flow
944           - pkg_ad_diff.list
945           - pkg_ad_check_lev?_dir.h
946    
947    checkpoint51i_post
948    o merge of the branch-genmake2
949      - knowingly breaks the older genmake
950      - automatic generation of all ALLOW_${PKG_NAME} defines
951      - new testreport supersedes older testscript
952    o large number of package inclusion and header cleanups
953    checkpoint51i_pre
954    
955    o new output for adjoin of global ocean vector invariant
956    o fix for checkpoint of thermodynamic seaice and bulk_force
957    o Steph gchem various cleanups
958    
959    checkpoint 51h_pre
960    o fixed some single quotes
961    o modify gchem pkg to be more versatile
962    o modifications to clean up dic pkg
963    o add pkg/cfc
964    
965    checkpoint51g_post
966    o provide links for ARPACK and ADM*TLM
967    o start removing verification/vero/
968    o update AD-related stuff
969      (in particular some IF-statements in model/src/ routines)
970    o adding to verification/global_ocean.90x40x15/ adjoint of
971      vector invariant setup
972    
973    checkpoint51f_post
974    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
975    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
976      of tracer Green's fucntions for ocean inversion project.
977    
978    checkpoint51f_pre
979    o Added on-the-fly spatial interpolation capability
980        "USE_EXF_INTERPOLATION" to pkg/exf.
981      - This is a temporary Cartesian-grid hack until
982        the super-duper ESMF coupler becomes available.
983      - See verification/global_with_exf/README for usage example.
984      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
985        flags and modified pkg/seaice accordingly.
986    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
987        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
988        non-local transport term.
989    
990    checkpoint51e_post
991    o pkg/mom_vecinv:
992      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
993      - add time-ave diagnostic of vorticity advection.
994    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
995    o atmospheric geopotential: - include water vapor effect;
996                                - use p^kappa in p* scaling.
997    o land pkg: read initial state from files.
998    o AIM : add stratospheric drag in the upper level
999    
1000    checkpoint51d_post
1001    o change function ILNBLNK (=> last non-blank char.) to return zero
1002      (instead of the string length) when the string. char is empty
1003    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1004    o modif's to restore TAMC compatibility
1005      - avoid "_d" constructs in PARAMETER declarations
1006      - avoid interrupting lines by comment lines
1007    o Use cluster local disks for purely local I/O
1008      vs. globally visible disks needed for ctrl stuff
1009      (merged from ecco-branch)
1010      - new active_file_loc... and mdsio_..._loc routines
1011      - affected packages: autodiff, ctrl, grdchk, mdsio
1012    
1013    checkpoint51c_post
1014    o introducing integer flag debugLevel
1015      - debLevZero: suppress all output
1016      - debLevA: standard
1017      - debLevB: equivalent to current debugMode=.TRUE.
1018    o introducing pathname variable mdsioLocalDir for mdsio
1019      that can be specified at runtime
1020      (relevant for cluster I/O to local disk)
1021    `
1022    >>>checkpoint51b_post
1023    adjoint of ptracers
1024    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1025    o extended state in checkpoint_lev?, etc.
1026    o alternative ctrl/cost with tr1 or ptracer
1027    o new comlev1_bibj_ptracers
1028    o new ptracers.flow
1029    o made ptracers_forcing same as external_forcing_s
1030    o added verification for adjoint with ptracers
1031      - adm. grdchk fail so far
1032      - tlm. grdchk OK
1033      - checked tapelev/comlev recomputations: OK
1034    <<<checkpoint51b_pre
1035    
1036    checkpoint51a_post
1037    o added code for biogeochemistry package
1038      - new pkgs: dic, gchem
1039      - new subroutine in ptracers
1040    o modify code for biogeo packages
1041      - in model/src and pkg/ptracers
1042    
1043    checkpoint51
1044    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1045      - autodiff, ctrl, exf, grdchk, seaice
1046      kept separate packages
1047      - cost, ecco, obcs
1048    o updating verification/internal_wave, verification/lab_sea
1049      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1050    
1051    checkpoint50i_post
1052    o Preparing next differentiable checkpoint and sync
1053      of MAIN vs. ecco-branch
1054      - 1st step: this one is differentiable
1055      - 2nd step: next(! not this) checkpoint will have updated packages
1056                  from ecco-branch)
1057    
1058    checkpoint50h_post
1059    o new package "land": provide surface BC for AIM.
1060    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1061    o AIM: use true log-P extrapolation for near surface temp (= as in
1062        F.Molteni paper) ; update aim.5l_cs output.
1063    o New variable in PARM03 for more flexible pickups
1064    o somewhat cleaned package initialisation sequence for
1065      ctrl/ cost/ ecco/ in packages_... routines
1066    
1067    checkpoint50g_post
1068    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1069      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1070      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1071        made the default because of faster convergence than ADI
1072    
1073    checkpoint50f_post
1074    o exf totally restructured
1075      - replaced all exf_set_ routines by one generic exf_set_gen.F
1076        and made sure it's still differentiable
1077      - split exf_getffields.F into new exf_bulkformulae.F
1078      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1079      - updated adjoint/makefile and relevant verif. accordingly
1080    
1081    checkpoint50f_pre
1082     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1083          + change Evap over land. (update aim.5l_cs output)
1084     o added missing .cvsignores and made uniform across expts
1085     o changed configuration of tidal_basin_2d expt
1086     o added pkg/debug functions for tracing code in fatal crashes
1087     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1088     o new fn in pkg/monitor to stop model if solution grows too big
1089     o removed lots of single quotes from comments
1090    
1091    checkpoint50e_post
1092    o make KPP work with PTRACERS
1093     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1094       nearly a copy of kpp_transport_s
1095     - there is no analogue to SurfaceTendencyS, so I have to use
1096       gPtr(of the surface layer) instead
1097    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1098    checkpoint50e_pre
1099    
1100    checkpoint50d_post
1101    o change kpp output from multiple-record state files to single-record state
1102      files analogous to write_state.F
1103    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1104      analogous to the cg2d-related output.
1105    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1106      so that writing to internal file fn (with length 512) fails.
1107    checkpoint50d_pre
1108    
1109    checkpoint50c_post
1110    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1111    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1112    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1113    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1114    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1115    
1116    checkpoint50c_pre
1117    Merging from release1_p13:
1118    o bug fix for pkg/seaice dynamic solver
1119    o Added SEAICE_initialHEFF to pkg/seaice
1120    
1121    checkpoint50b_post
1122    o store u*,v* in gU,V instead of in guNm1,gvNm1
1123    o in order to put the momForcing out of the Adams-Bashforth:
1124      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1125      to timestep.F
1126    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1127    o re-generate output for highly sensitive test-exp:
1128       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1129    
1130    checkpoint50b_pre
1131    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1132    o corrected CPP option mismatch in exf_Bulk... functions for case
1133      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1134    
1135  checkpoint50a_post  checkpoint50a_post
1136  o Bug fix for merging between c50 and KPP.  o Bug fix for merging between c50 and KPP.
1137    ikey was passed from thermodynamics to kpp_calc via    ikey was passed from thermodynamics to kpp_calc via

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