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revision 1.70 by jmc, Sat Apr 6 01:36:25 2002 UTC revision 1.432 by jmc, Tue Jan 4 17:20:17 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    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    
24    checkpoint57b_post
25    o simplify options in diagnostics_fill arguments (remove weird combinations)
26    o fix MNC coordinate variables so that they now contain per-face index
27      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
28      general, EXCH2 grids are only aligned to a "local" coordinate system
29    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
30    o Implement instantaneous output within pkg diagnostics:
31      setting a negative frequency in data.diagnostics produces
32     "snap-shot" output (as opposed to time-average if freq > 0)
33    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
34      NOTE: change ptracer diagnostics name: use 2 characters to work with
35            more than 9 tracers. Add also diagnostics of advect & diffus flux.
36    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
37      becomes the coordinate variable for the 'T' dimension
38    o add CF-style coordinate variables to MNC
39      - just a first cut:  numbers are meaningless on the cubesphere and
40        missing along the T axis but otherwise it works!
41    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
42    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
43    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
44      this is based directly on what the model compute, so that the content of
45      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
46    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
47    o clean up build options files for SunOS, in particular
48      - remove -traditional from xmakedepend
49      - change -xarch=v9 to -xarch=native for f77
50      - restore use of make (not gmake)
51      - add CC=gcc if using g77
52    o changes per discussion of AM, JMC, & EH3 today:
53      - move redundant "grid" variables out of "state" -- in preparation of
54        creating proper CF-style coordinate variables and in recognition
55        that any/all grid variables can be easily copied (eg. w/NCO) from
56        the grid files into any of the other NetCDF files
57      - *always* output grid variables with MDSIO (this will eventually be
58        changed)
59      - output MNC grid file if useMNC is true
60    o every instance of _END_MASTER() has been found and replaced with
61      _END_MASTER( myThid ) in order to satisfy certain picky Sun
62      preprocessors
63    o re-arrange diagnostics pkg initialisation:
64     - allow each package to extend the available diagnostics list
65     - add some checking and fix small problems (multi-threaded, ...)
66     - new S/R diagnostics_fill (replace fill_diagnostics):
67       look through the short list of active diag. (instead of the long list)
68       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
69    
70    checkpoint57a_post
71    o this set of changes restores TAMC compatibility
72      tested for global_ocean.90x40x15 adjoint on trough
73      (what a pain)
74    
75    checkpoint57a_pre
76    o some modifs in tools/build_options for sunos
77    o call ctrl_pack for ctrl at end for optimcycle=0
78    
79    checkpoint57
80    o add horizontal bi-harmonic viscosity for vertical velocity
81      - new parameter viscA4W (defaults to viscA4)
82      - affects only non-hydrostatic code
83      - to be done: no-slip lateral boundary conditions
84    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
85    o implement Implicit Vertical advection for pTracers
86    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
87      (implemented also for implicit vertical diffusion & advection)
88    o OBCS: extend application of tracer open boundary conditions
89      to a strip beyond the boundary of width Olx/Oly
90    o add call monitor to TAF set of required calls (flow directives)
91      and include in natl_box_adjoint
92    o untangle a few ifdefs related to cost, ctrl, autodiff
93      untangel a few ALLOW_ECCO_OPTIMIZATION
94    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
95      (theta2, salt2 in ecco_cost_weights)
96    
97    checkpoint56c_post
98    o OBCS as control variables
99      - update ctrl_ad_diff.list, obcs_ad_diff.list
100      - remove balance of obcs controls from default
101      - fix index bug nobcs in ctrl_init
102      - fix dummy fields filen in ctrl_pack
103      - add dummy weights for obcs
104    o lsopt: comment out fort.94 output
105    o optim:
106      - remove unnecessary header files
107      - adjusted namelists
108      - add xerbla.F to Makefile
109    o exf:
110      - multiple modifications of exf_check_range
111      - unit change in exf_init_runoff from [m/year] to [m/s]
112    o mdsio:
113      - i/o-vector change debugLevel from debLevA to debLevB
114    
115    checkpoint56b_post
116    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
117      is called from DO_THE_MODEL_IO
118      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
119      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
120      - clean up PTRACERS_WRITE_TIMEAVE a little
121    o add another verification experiment that tests both the cfc-pkg and
122      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
123      reactive tendencies treated inline with regular timestepping
124    o testreport previously did a lousy job of comparing small numbers, so
125      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
126      implemented in the little c-progam tmp_cmpnum.c which is embedded in
127      testreport.
128    o ptracers_monitor: bug fix for MPI
129    
130    checkpoint56a_post
131    o GCHEM: finish reorganizating the package
132      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
133        (introduces another 3D-array for each passive tracer, but only if
134        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
135        gchemTendency is not needed because the timestep is done separately)
136      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
137      - GCHEM is now---more or less cleanly---separate from PTRACERS
138      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
139        so clear to me how that should be done in a general way.
140    o CFC: improve formatting of output in CFC_ATMOS
141    o PTRACERS:
142      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
143        that ALL experiments with ptracers enable can be checked. This makes
144        GCHEM_MONITOR obsolete.
145      - include a runtime parameter PTRACERS_monitorFreq that defaults to
146        monitorFreq
147      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
148    o add PTRACERS (PTR0[1-5]) to testreport output
149    o exf_check_range:
150      * default changed to .TRUE.
151      * will check values for niter0 if debLevA, every timestep if debLevB
152      * STOP in exf_check_range if 'out of range'
153      * range chosen generous to allow for potential extema
154      TBD: a version with stricter range
155           permitted range would be runtime parameters
156    o GMredi:
157      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
158      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
159      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
160    o GCHEM:
161      - move call to GCHEM_FORCING_SEP, so that it is now called before
162        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
163      - introduced a useGCHEM runtime flag and applied it everywhere.
164      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
165        this flag is now only visible within GCHEM-pkg routines.
166      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
167        be replaced by a 3D array that is computed before thermodynamics; for
168        this, the tracer ID iTracer had to be included into the parameter list
169        of ptracers_forcing
170      - set up forward_step to call gchem_forcing, that will replace
171        gchem_forcing_int in ptracers_forcing
172      - cleaning up
173    o small cleaning of exch2: remove files that are also in eesupp/src
174    
175    checkpoint56
176    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
177    o mnc: cleanup "full" files--fixes out-of-memory problem
178    o ECCO-GODAE
179      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
180      * fully merged and updated from SIO code
181        windstress sign change affects
182        - exf_inscal_[u/v]stress
183        - sign of xx_tau[u/v] adjustments
184        - signs in cost_scat
185      * ctrl_get_gen: avoid update of tau[u/v] for first few days
186      * natl_box_adjoint updated and compressed
187      * 2-level checkpoint switch added
188        (tested in EXP. 1 of natl_box_adjoint)
189      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
190    o SVD
191      * first complete, non-hacked version for SVD calculations
192      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
193        performed via direct access files admtlm_vector.it????
194        (via ctrl_[un]pack)
195      * optimcycle is used for ARPACK iteration counter
196        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
197      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
198        and add linear transforms where necessary
199      * controls are initial/final SST, SSS (can be extended; need to check
200        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
201    o mdsio: filename info to both stderr, stdout
202    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
203      from sign change
204    
205    checkpoint55j_post
206    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
207      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
208    o add consistent build directories and .cvsignore files to verification
209    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
210    o make all subroutines 30 or less characters in length for certain older
211      compilers to work (a thorough search only turns up two routines in
212      pkg/ptracers)
213    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
214      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
215    
216    checkpoint55i_post
217    o change arrays for total vertical diffusivity (2.D if explicit,
218      3.D if implicit) ; each ptracer uses its own background value.
219    o added mnc/NetCDF output capability to ocn_compon_interf
220      - added bits to verification/cpl_aim+ocn so that it can run on
221        ITRDA and other clusters without the mpirun "-wd" option
222    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
223      configuration
224    o give MNC the ability to create additional files rather than
225      exceeding a specified file size limit "MNC_MAX_FILESIZE"
226      - the default is just less than 2GB which is a practical limit
227        on many systems
228    o Compute the non-local term using either KPP vertical diffusivity (=default)
229       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
230    
231    checkpoint55h_post
232    o add verification test "vermix"
233    o remove all the *_ioinc flags and replace with the single global
234      outputTypesInclusive flag
235    o allow to set a vertical profile of vertical diffusivity for T & S
236    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
237    o useMNC moved from data.mnc to data.pkg
238    
239    checkpoint55g_post
240    o Renaming carbon AD experiments to comply with testreport conventions
241    o Updating adjoint of Held-Suarez hs94.1x64x5
242    o Fixing directives for non-ECCO forward_step, after ECCO directives
243      have been fixed to avoid recomp. of do_oceanic_phys
244      Works well for global_ocean.90x40x15,
245      but recomp. issue remains for carbon
246    o Updating adjoint output for natl_box_adjoint after
247      pkg/ecco has been modified (see taga c55d_post)
248    
249    checkpoint55f_post
250    o rename to timeave_init_fixed
251    
252    checkpoint55e_post
253    o some delicate re-shuffle of store directives to avoid one
254      extra call of do_oceanic_physics
255      affects ecco_the_main_loop.F, do_oceanic_physics.F
256      checkpoint_lev1_directives.h
257    o NB: this may break global_ocean adjoint temporarily,
258      but it is clear how to fix it. Will do later, need this now.
259    
260    checkpoint55d_post
261    o ECCO specific cost function terms (up-to-date with 1x1 runs)
262    o ecco_cost_weights is modified to 1x1 runs
263    o modifs to allow observations to be read in as
264      single file or yearly files
265    o enable to read exf forcing fields as either
266      single file or yearly files (flag useExfYearlyFields)
267    checkpoint55d_pre
268    
269    o switch between 2-level and 3-level checkpointing
270    o add ability of MNC to write local and "partial" (eg. 2D slices where
271      the full 3D field is never actually stored) arrays to NetCDF files
272      with the correct (that is, the complete multi-dimensional) set of
273      array indicies
274      - used in mom_vecinv() to write the diagFreq output
275      - tested (demonstrated) in verification/aim.5l_cs
276    o further mnc-ification
277      - add verification/lab_sea to the list with mnc setups
278      - fix undefined mnc v-names in cd_code
279      - add kpp to mnc output (both snapshot and timeave)
280    o non-hydrostatic code
281      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
282        in calc_gw.F
283      - defaults to viscAh
284      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
285        friction or Leith) in non-hydrostatic mode, as long as there is
286        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
287    o pkg/cost
288      extend simple cost functions to treat time mean quantities
289      (T,U,V) via cost_accumulate_state from cost_tile
290    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
291        be 2 times larger than the minimum size the advection scheme requires.
292        now get a perfect conservation of salt in advect_cs test-exp (updated)
293    o GGL90 (Gaspar's TKE mixed layer)
294      - add horizontal diffusion of TKE, requires exchanges in
295        do_fields_blocking_exchanges, horizontal diffusivity is zero by
296        default. In OPA there is no horizontal diffusion of TKE but the
297        mixing coefficients are computed from a horizontal average of TKE of
298        6 points or so. I think that diffusion has a little more physical
299        justification.
300      - clean up ggl90_calc in the hope of reducing memory usage (this hope
301        was in vain)
302      - mask tke-variable in ggl90_init
303    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
304    o fix biharmonic diffusion on CS-grid.
305    o more obcs stuff
306      - added obcs_external_fields_load as an alternative to the EXF-pkg option
307        for reading boundary values. This routine is called from
308        obcs_prescribe_read
309      - updated obcs_check
310      - changed sponge layer relaxation parameter units for days to seconds
311      - turned off sponge layer by default
312      - changed argument list of OBCS_CALC to myTime+deltaTclock
313      - fixed about 35 bugs in obcs_external_fields_load
314    
315    checkpoint55c_post
316    o obcs stuff
317      - new runtime flags useOBCSprescribe, useOBCSbalance
318      - re-arranged obcs_calc
319      - moved exf_getobcs to obcs_prescibe_read
320        obcs_prescibe_read is called after ORLANSKI stuff
321        and independent of it (executable can contain all).
322      - updated obcs_check
323      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
324        These may be necessary only if tangential velocities are
325        prescribed at OB, not sure, needs testing.
326    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
327      which simplifies the calls and passes the ifc check-bounds test
328    
329    checkpoint55b_post
330    o add a 2D scalar, Z location, exchange_2 routine.
331    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
332      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
333      affects advect_cs results (for the wrong reason): update output.txt
334    o use a more standard discretization for biharmonic viscosity ;
335     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
336      affects results of dome set-up: update output.txt
337    o fix gad_advection.F (CubedSphere part), back to version 1.23
338    o fix bug in mom_vi_del2uv.F (CubedSphere part).
339    
340    checkpoint55a_post
341    o merged code to
342      * prescribe/read time-dependent open boundaries
343        (works in conjunction with exf, cal)
344      * sponge layer code for open boundaries
345      * each boundary N/S/E/W now has its own CPP option
346        (healthy for the adjoint)
347    
348    checkpoint55
349    o up-to-date adjoint of previous breaks
350      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
351      - global_ocean_ebm: adjoint still needs fix (TLM ok)
352      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
353      - carbon: * remove tr1-related adjoint verification
354                * add ptracer as control variable
355    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
356      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
357    
358    checkpoint54f_post
359    o in verification/carbin/ remove experiment related to
360      ALLOW_PASSIVE_TRACER (array tr1 etc)
361      code_ad/ input_ad/ results_ad
362    
363    o add two new packages
364      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
365        + subject to optimization (memory)
366      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
367        + subject to reordering (many GOTOs in the original code)
368        + so far opps is called for every (i,j) point, and then operates in
369          the vertical; one may want to reorder the scheme in order operate in
370          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
371          fields)
372    o overhaul of IO so that we now have flags for MDSIO and/or MNC
373      - all verification tests compile and run with linux_ia32_g77
374      - defaults are compatible with current input files--nothing
375        should change if you were not previously using MNC
376      - MNC output has been added in numerous places (eg. timeave)
377        but there are still a few writes not yet do-able with MNC
378        (this is in progress)
379      - flags now allow for either/or/both use of MDSIO and MNC and
380        documentation will soon follow
381      - numerous small formatting cleanups for ProTeX
382    o add version info (via BUILD_INFO.h) to MNC and stdout
383    
384    checkpoint54e_post
385    o add two new packages
386      - pp81 (Packanowski and Philander, 1981), Richardson number and
387        stratification dependent mixing
388      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
389      - these scheme operate in a similar manner as KPP (without ghat, of
390        course), however there is only one diffusivity that is used for both
391        temperature and salinity (and passive tracers)ç
392    o add offline package
393    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
394      provided by Stephanie Dutkiewicz
395    o genmake2: add ability to search for C compilers and cleanup test output
396      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
397    
398    checkpoint54d_post
399    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
400    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
401      leading to additional shift by 5 days each year of integration
402       (i.e. leading to considerable offset over the years)
403    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
404    o start with no AB and no initial filtering (staggerTimeStep):
405      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
406    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
407      (external loading & cpl import/export stay in forward_step.F)
408    o update coupling interface to work with new staggerTimeStep
409    o change MDSIO ptracers_pickup.
410    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
411    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
412    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
413    
414    checkpoint54c_post
415    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
416      this affects (truncation error) output.txt of test-exp:
417       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
418    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
419    o change Qnet to always be the net heat flux, (+upward).
420      affects (truncation error) output of natl_box exp.: updated
421    o define the max number of passive tracers in PTRACERS_SIZE.h
422    o start to test mnc routinely in exp0
423    o add sea-ice loading (sIceLoad) as a new forcing field.
424    
425    checkpoint54b_post
426    o add testreport "-j JOBS" option for parallel builds (tested and pretty
427       impressive on Altix and Opteron systems)
428    o diagnostics can now write NetCDF files through the mnc package
429    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
430    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
431    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
432      affects (truncation error) output of lab_sea & natl_box exp.: updated
433    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
434    
435    checkpoint54a_post
436    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
437    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
438    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
439    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
440      + internal_wave (shift in writing cg2d_ini_res)
441    checkpoint54a_pre
442    
443    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
444      - modified verification/lab_sea and natl_box_adjoint accordingly
445    
446    checkpoint54
447    checkpoint53g_post
448    o prepare splitting of thermodynamics: store convect.counter in common block
449    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
450      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
451    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
452    o new parameter "nShapS": allow to treat differently S from T (nShapT)
453    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
454    o restore adjointability
455    
456    checkpoint53f_post
457    o modifications that affect AIM experiment results (update output.txt):
458      - no advection of S at top interface Nr (pkg/generic_advdiff)
459      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
460    o AIM pkg:
461      - include stability function into surf.Flux derivative relative to Tsurf
462      - calculate clear-sky radiation & surface temp. change (for diagnostics)
463    
464    checkpoint53e_post
465    o merged cylindrical coord configuration
466    o added rotating_tank experiment
467    checkpoint53e_pre
468    
469    checkpoint53d_post
470    o faulks upgraded: re-generate output.txt that have changed:
471       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
472    o Added Bryan and Lewis, 1979, vertical diffusivity profile
473    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
474    o added Sadourny discretization of Coriolis
475      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
476      - re-enabled use of omega3 (useAbsVorticity)
477    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
478      vector-invariant equations
479      - note: does *NOT* yet use same variable visc. for no-slip BC's.
480    o recoded the lateral boundary conditions for non-hydrostatic w, this time
481      hopefully without new bugs
482      - still to do: biharmonic friction for non-hydrostatic w
483    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
484    o regenerated output for global_ocean_ebm (using -ieee)
485    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
486      of mom_common/
487      - simple re-arrangement of instructions within computing loop
488    checkpoint53d_pre
489    
490    checkpoint53c_post
491    o new version of coupler for AIM+thSIce and Ocean models
492     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
493     - land: change Evaporation of snow
494     - aim with thSIce: fix bug in snow-precip.
495    o changes to calc_gw.F
496     - bug fix for w^2 term near the bottom boundary
497     - (hopefully) improve the lateral slip boundary condtions for use with
498        partial/looped cells
499      - because the bug fix changes two verification experiments anyway (exp5
500        and plume on slope), change the lateral boundary condition from half slip
501        to the value of no_slip_sides
502    o ebm package wasnt quite up to the parallel task. Fixed that.
503    o Adjoint of EBM package + verification
504      * TLM OK
505      * ADM not sufficient accuracy yet (needs further testing)
506    
507    checkpoint53b_post
508    o Commiting new energy balance model to repository
509      * package is pkg/ebm
510      * verif. is verification/global_ocean_ebm
511      * references are in ebm_driver.F
512    C      * X. Wang, P. Stone and J. Marotzke, 1999:
513    C        Global thermohaline circulation. Part I:
514    C        Sensitivity to atmospheric moisture transport.
515    C        J. Climate 12(1), 71-82
516    C      * X. Wang, P. Stone and J. Marotzke, 1999:
517    C        Global thermohaline circulation. Part II:
518    C        Sensitivity with interactive transport.
519    C        J. Climate 12(1), 83-91
520    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
521    C        Destabilization of the thermohaline circulation
522    C        by atmospheric eddy transports.
523    C        J. Climate 7(12), 1870-1882
524    o Will need long integration testing.
525    checkpoint53b_pre
526    
527    o created pkg/mom_common in preparation for variable viscosity code
528    o renamed and split ini_mnc_io
529    o pkg/land: only liquid water can diffuse or run-off
530    o AIM using land: soil wetness availability account for snow
531    o added printMapIncludesZeros to EEPARMS namelist
532    
533    checkpoint53a_post
534    o restore TAMC compatiility for exf_constants.h
535      (no usage of _d in .h)
536    o Additional storing in KPP in an attempt to fix
537      TAMC problem with adjoint of KPP code.
538      (no success...)
539      Identical code works fine with TAF.
540    o Fixed verification/natl_box_adjoint experiments.
541      Initial conditions for Experiments 4 and 5 are now
542      set to "SEAICE_initialHEFF=0", which is more reasonable,
543      and hence gives results closer to that of Experiment 2.
544      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
545    
546    checkpoint53
547    o stable checkpoint with up to date adjoint
548      TLM tests only run for 1st grdchk at the moment. Its unclear if
549      this is a code problem or a problem with resetting code for g_
550      variables that is being autogenerated wrong.
551      Otherwise:
552       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
553       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
554         are both still in chaos following their security messes.
555    
556    checkpoint52n_post
557    o various build (mostly genmake2) changes including:
558      - ability to build/run more easily within Cygwin and MacOS X
559      - more complicated Makefiles with a stronger dependence on Gnu Make
560    o pkg/seaice modifications
561      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
562        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
563        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
564      - changed proxy for geostrophic velocity and updated
565        verification/lab_sea/results/* accordingly
566      - removed ADI dynamic solver from pkg/seaice
567      - replaced all occurrences of 1/CSTICE or 1/CSUICE
568        they caused a segmentation fault under certain circumstances
569      - removed unused field WATR
570    o bug fix in exf-package:
571      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
572         now reflect that.
573    o small fixes in the cal-package:
574      - set reference date to first of January for the 'model'-calendar
575      - failing of cal_CheckDate in cal_FullDate now actually results in a
576        warning
577    o small modifications in exf-package to increase flexibility:
578      - change climtempfreeze from a constant to a runtime parameter that
579        is specified in data.exf_clim (default = -1.9)
580      - introduce runtime parameter windstressmax (default = 2.0) that is
581        specified in data.exf
582    o fix in pkg/thsice:
583      - update Evap (Tsf changes) to be consistent with Latent heat flux
584      - maintain snow precipitation unchanged (even if Tsf >=0).
585     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
586    
587    checkpoint52m_post
588    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
589      this does not change any of the results, because myIter=0 in swfrac always
590      lead to jwtype=2 (the default anyway), but the call makes little sense
591      as a default
592    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
593    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
594      atmospheric model (AIM) to use it ; add a "slab ocean" component.
595    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
596    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
597    o extending useSingleCpuIO option to work with new exch2 I/O format
598      - old-style, missing-tile I/O is still accessible by defining CPP
599        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
600    o monitor package can write to NetCDF files and/or STDOUT
601    o fix re-definition bug in MNC_GRID_INIT_ALL()
602    o doc/api_reference added
603      - a framework for building an API Reference Manual using all
604        the "protex" comments embedded in the code
605      - see pkg/generic_advdiff, pkg/mnc for examples
606    o MNC:
607      - make myThid the last argument for all subroutines
608      - new default for the grid files: NO halos
609      - add useMNC and other run-time flags
610      - separate per-file-group handling of the unlimited dimension
611      - early initialization of MNC w/ flags read at the eeboot stage
612        and lookup tables set in initialize_fixed
613      - write all MNC output to a freshly-created directory
614    o thermodynamics sea-ice (thsice) is now tested with testreport.
615    o test exp. advect_cs: use the standard cs32 grid ; update output.
616    o Added functionality to grdchk:
617      pick global i,j,k position (or nearest wet) where to perform check.
618    
619    checkpoint52l_post
620    o new land formulation:
621      a) use ground enthalpy as prognostic variable to ensure exact
622         energy conservation.
623      b) account for water temperature and for latent heat of freezing
624         in all processes (rain, run-off, ground storage)
625      c) compute surface and ground temperature implicitly.
626    o aim_v23 modification for new land model:
627      a) Treat separately land / ocean / sea-ice surface fluxes
628         to allow implicit computation of land & sea-ice surface temp.
629      b) add snow precipitation.
630    checkpoint52l_pre
631    
632    o fix problem (when 1 tile is empty) in min/max monitor.
633    o fix bug in timeAve (u,vZetatave in common block)
634    o no restoring terms under ice for pkg/seaice
635    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
636    o bug fix for pkg/seaice pickups
637    o change MNC call locations and add coordinate attributes
638    o mask vorticity at the corner ; affects global_ocean.cs output
639    o fix ini_curvilinear_grid ; test CS experiments with mpi
640    o aim.5l_cs: modify sea-ice fraction input file ; update output
641    o exf: Adding simple range check routine for exf fields after read
642    
643    checkpoint52k_post
644    o removed top-level directory "diags"
645      - we migrated these functions to pkg/timeave a long time ago
646    o fixed bug introduced in pkg/monitor
647    o accuracy ctrlprec = 32 insuffient for gradient checks using
648      averaged fields (I/O via cost_averages)
649      -> use ctrl.h in active_file*.F to control I/O precision.
650    o paramter list of CALL ADTHE_MAIN_LOOP
651    o added initial do_the_model_io to ecco
652    o set all ...Freq to zero after cost_final
653      taveFreq, dumpFreq, pChkptFreq
654    o MAIN and ECCO differentiability restored
655    
656    checkpoint52j_post
657    o fix nchklev in tamc.h for global_ocean...
658    o Bringing flow and store directives up-to-date
659    o Really weird thing!
660      call do_the_model_io from the_main_loop with parameters
661      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
662      TAF places a faulty re-call of initialise_varia
663      after cost_final call which should not be there!
664    checkpoint52j_pre
665    
666    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
667      error messages
668    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
669    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
670      debug output
671    o modfied mdsio_writefield.F to handle non-global files under exch2
672    o update AIM Cubed-Sphere exp (aim.5l_cs):
673      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
674    o update AIM Equatorial Channel exp:
675      use standard aim_v23 pkg and change the SST fields to be more realistic.
676    o globalFile now works with exch2
677    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
678      mon_vort3.F to make exch2 friendly with >1 tile per cube face
679    o limit timeave output for hi-res integrations
680    
681    checkpoint52i_post
682    o removed CPP_EEOPTIONS.h from verification/*/code
683    o updated the tiling for global_ocean_pressure
684    checkpoint52i_pre
685    
686    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
687      the old pkg/aim).
688    
689    checkpoint52h_pre
690    o shortened offending lines in exch2_send_rx?.template
691    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
692    o genmake2: add build & execute test for NetCDF code
693    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
694      old grid files, moved CPP_EEMACROS.h to pkg/exch2
695    o added useSingleCPUIO flag to monitor.F and mon_out.F
696    o added temporary hack for sea-ice dynamics on the cube:
697      metric terms are ignored and it is assumed that
698      there is no sea-ice on cube faces 1, 2, 4, and 5.
699    
700    checkpoint52f_post
701    o added exch2 cube routines to pkg/exch2
702    o modified hs94.cs-32x32x5 to use it
703    o added new grid files to hs94.cs-32x32x5
704    checkpoint52f_pre
705    
706    checkpoint52e_post
707    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
708      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
709    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
710      to work with implicit vertical advection and AB ;
711    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
712    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
713     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
714    checkpoint52e_pre
715    
716    o fix bug in impldiff when Nr=1 or Nr=2.
717    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
718    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
719    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
720      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
721    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
722    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
723    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
724    
725    checkpoint52d_post
726    o re-tiled many expts to allow comparison in multi-processor mode
727      - updated output accordingly
728      - changed hs94.128x64x5 to use intial T from file rather than use the
729        random number generator
730    o add infrastructure in model routines for fizhi and gridalt packages
731    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
732    o changes to permit hi-res, cubed-sphere, configuration
733      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
734      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
735      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
736        of surface winds for the cube
737      (A verification experiment, based on global_ocean.cs32x15, but with
738       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
739       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
740       complete with example surface forcing files and matlab scripts to look
741       at the output and compare it with that of global_ocean.cs32x15.)
742    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
743       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
744       to conform to the common rule.
745    o check-in the first version of the coupler + interfaces for multi-components
746       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
747       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
748       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
749       - ocean and atmos. share the same horizontal grid (no interpolation).
750       - exchanges between component and coupler is done in forward_step
751    o new verification experiment, cpl_aim+ocn:
752       coupled ocean - AIM atmosphere on cs32 grid.
753    
754    checkpoint52d_pre
755    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
756    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
757    
758    checkpoint52c_post
759    o Fixing OPTIONS files for use of exf:
760      - ALLOW_ECCO not needed
761      - ECCO_CPPOPTIONS.h should not be included from
762        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
763        as has been the case in the past
764      - All cal/exf related options are currently set in
765        single header file. Should remain so until we
766        agree on a consistent new policy.
767    o Removed all CPP options for cal package.
768      cal has no more CPP options.
769    o modified STOREs in GAD_ADVECTION
770    o corrected key comp. for passkey
771    
772    checkpoint52b_post
773    o new version: "thsice" of thermodynamic sea-ice pkg:
774     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
775     - modify fluxes but do not change theta directly;
776     - light cleaning of bulk_force pkg (still needed with thsice).
777     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
778       + output_thsice.txt to test thsice & bulk_force pkgs.
779    o put back grid & coriolis monitor output.
780    checkpoint52b_pre
781    
782    o call "do_the_model_io" at the beginning (=> dump initial state)
783    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
784    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
785      (need info on NUMBER_OF_PTRACERS)
786    o missing PTRACERS headers in some routines
787    o default tamc.h in pkg/autodiff supposed to crash
788      to ensure proper customization
789    
790    checkpoint52a_post
791    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
792      - moved surfaceTendencyTice from pkg/seaice to main code
793      - subroutine FREEZE_SURFACE now limits only surface temperature
794        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
795        => new output.txt for global_ocean.cs32x15 & global_with_exf
796      - keep the old version of FREEZE for backward compatibility;
797        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
798      - corresponding modifs for TAF directives
799    o added surface flux output variables to TIMEAVE_STATVARS
800    o time-averaged output for pkg/ptracers
801    o fix problem with ECCO-related divided adjoint
802      snapshot file was missing some ad-variables,
803      but no warning issued by TAF
804    
805    checkpoint52a_pre
806    o some bug fixes for #undef REAL4_IS_SLOW
807    
808    checkpoint52 = ecco_c52_e35
809    o after testing adjoints of checkpoint51u_post
810    
811    checkpoint51u_post
812    o this is the post-merge tag of the ecco-branch
813      (needs another clean checkout and re-testing)
814    o various natl_box_adjoint configs and results
815      but no input fields
816    o obcs adjoint not yet merged!
817    o adding ECCO global 1x1 and 2x2 degree configs
818    o updated/extended some store directives for seaice
819    o pkg/ecco now containes ecco-specific part of cost function
820    o top level routines the_main_loop, forward_step
821      supersede those in model/src/
822      previous input data.cost now in data.ecco
823      (new namelist ecco_cost_nml)
824    o in ctrl/ cleaned some cross-dependencies and updated CPP options
825    
826    checkpoint51t_post
827    o this is the pre-merge tag of the ecco-branch
828    
829    checkpoint51s_post
830    o cleanup: removed various obsolete #define-s
831    o pkg/grdchk
832      - renamed 'ph-grd 3' to 'grad-res'
833      - merged from ecco-branch
834        (remaining bug fixes for obcs gradient checks)
835      - additional high-precision output for testreport
836        (grep for 'precision_grdchk_result')
837    
838    checkpoint51r_post
839    o cleaned up or removed CPP_OPTIONS.h files
840    o updated results for some of the tests to reflect the new
841      optfiles (-ieee: -O0 instead of -O3)
842    
843    checkpoint51q_post
844    o cd_code:
845      - moved cd_scheme.F -> cd_code_scheme.F
846      - separate read_checkpoint from cd_code_ini_vars.F
847      - separated cd_code part from write_checkpoint
848      - updated AD_SOURCE, generated .flow
849      - added CD_CODE_VARS.h to the_main_loop
850      - Moving cd_code specific store dir.s to pkg/cd_code
851    o ctrl package totally restructured
852      - pack/unpack now optional and decoupled from
853        xx_/adxx_ I/O
854      - ctrl_pack/unpack cleaned
855        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
856      - confined inclusion of AD_CONFIG.h to where necessary.
857    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
858    
859    checkpoint51p_post
860    o create initial cd_code package
861      - WARNING: the initialization of fields within packages
862        is broken because INI_FIELDS (where READ_CHECKPOINT is
863        called) is called *before* PACKAGES_INIT_VARIABLES.
864        This seems to be backwards since
865        1) its important to initially zero the entire field including
866           the "halo" region
867        2) zeroing needs to be done *before* reading pickup info
868           and the pickup call might or might not happen in any
869           particular run
870      - this needs an overhaul for R2
871    o cleanup verification/*/code/GMREDI_OPTIONS.h
872    o cleanup testreport
873    
874    checkpoint51o_post
875    o bringing AD-related verif's up to date with genmake2
876      - carbon/
877      - global_ocean.90x40x15/
878      - hs.94.1x64x5/
879      - (front_relax/ )
880    o (more) consistent directory structure for AD-related verif.'s
881    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
882    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
883    o bug fix in find_alpha.F for MDJWF:
884      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
885        change rho -> rho-rhoConst
886      - replace call find_rho to find_rhonum
887    o initialisation of rFlx extended to full array (required by TAF)
888      and shifted to thermodynamics
889    o removed PTRACERS.h in ptracers routine
890    o added surfacetendencyPtr to S/R parameter list pracers_forcing
891    o Correcting initialisations for fVerU, fVerV.
892    o helping TAF to recognize dependency on kUp for
893      fVerU, fVerV
894    o Replacing delZ by delR in pkg/ctrl/
895    checkpoint51o_pre
896    
897    o undid all of cp51 pending some cleanups and discussion
898    o added the [#include "AD_CONFIG.h"] statement to all files that need
899       it for adjoint/tl #defines
900     o re-worked the build logic in genmake2 to support AD_CONFIG.h
901     o removed tools/genmake since it no longer works
902    
903    checkpoint51n_post
904    o modifications to make FREEZE flux visible to pkg/kpp
905      - moved surfaceTendencyTice from pkg/seaice to main code
906      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
907      - subroutine FREEZE now limits only surface temperature
908        (this means new output.txt for global_ocean.90x40x15,
909         global_ocean.cs32x15, and global_with_exf)
910    o added surface flux output variables to TIMEAVE_STATVARS
911    
912    checkpoint51n_pre
913    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
914    o added [#include "AD_CONFIG.h"] to all files that use the following
915      defines:
916      - ALLOW_ADJOINT_RUN
917      - ALLOW_TANGENTLINEAR_RUN
918      - ALLOW_ECCO_OPTIMIZATION
919    
920    checkpoint51m_post
921    o incorporating changes to get TAMC/TAF working in genmake2
922      - added new TAMC/TAF targets to the Makefile
923      - various cleanups related to package handling
924      - these changes should have no impact on the forward model
925    
926    checkpoint51l_post
927    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
928     - faster algorithm for cal_addtime.F
929     - higher precision arithmetic, where needed
930     - pkg/exf *startdate variables changed from calendar date to
931       model integration time
932    
933    checkpoint51l_pre
934    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
935    o enable to apply restoring on S & T only in a latitude band.
936    o update output (external_forcing_surf modif. change truncation errors)
937       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
938    
939    checkpoint51k_post
940    o change default to: useNHMTerms=.FALSE.
941     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
942       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
943     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
944        exp1, ideal_2D_oce
945     - change data file of oceanic exp (leave the results unchanged for now)
946       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
947    o set gravitySign automatically according to the vertical coordinate used
948      (and change sign: back to "logical" value: +1 when R increases downward)
949    o added an include barrier to the default CPP_OPTIONS.h and
950      removed the #include "PACKAGES_CONFIG.h" from it
951    o fix a bug in mom_fluxform (from chk51j_post)
952    
953    checkpoint51j_post
954    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
955    o adjusted some flow directives (dynamics, thermodynamics)
956    o added cubed-sphere case to test cost function
957    o heckpoint_lev?_directives.h now include
958      pkg-specific directives, whenever those are enabled.
959    o Moving pkg-specific flow directives to corresponding pkg
960      Moving pkg-specific differentiation list to corresponding pkg
961      Moving pkg-specific checkpoint-lev storing to corresponding pkg
962      ---> conventions are
963           - pkg_ad.flow
964           - pkg_ad_diff.list
965           - pkg_ad_check_lev?_dir.h
966    
967    checkpoint51i_post
968    o merge of the branch-genmake2
969      - knowingly breaks the older genmake
970      - automatic generation of all ALLOW_${PKG_NAME} defines
971      - new testreport supersedes older testscript
972    o large number of package inclusion and header cleanups
973    checkpoint51i_pre
974    
975    o new output for adjoin of global ocean vector invariant
976    o fix for checkpoint of thermodynamic seaice and bulk_force
977    o Steph gchem various cleanups
978    
979    checkpoint 51h_pre
980    o fixed some single quotes
981    o modify gchem pkg to be more versatile
982    o modifications to clean up dic pkg
983    o add pkg/cfc
984    
985    checkpoint51g_post
986    o provide links for ARPACK and ADM*TLM
987    o start removing verification/vero/
988    o update AD-related stuff
989      (in particular some IF-statements in model/src/ routines)
990    o adding to verification/global_ocean.90x40x15/ adjoint of
991      vector invariant setup
992    
993    checkpoint51f_post
994    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
995    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
996      of tracer Green's fucntions for ocean inversion project.
997    
998    checkpoint51f_pre
999    o Added on-the-fly spatial interpolation capability
1000        "USE_EXF_INTERPOLATION" to pkg/exf.
1001      - This is a temporary Cartesian-grid hack until
1002        the super-duper ESMF coupler becomes available.
1003      - See verification/global_with_exf/README for usage example.
1004      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1005        flags and modified pkg/seaice accordingly.
1006    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1007        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1008        non-local transport term.
1009    
1010    checkpoint51e_post
1011    o pkg/mom_vecinv:
1012      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1013      - add time-ave diagnostic of vorticity advection.
1014    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1015    o atmospheric geopotential: - include water vapor effect;
1016                                - use p^kappa in p* scaling.
1017    o land pkg: read initial state from files.
1018    o AIM : add stratospheric drag in the upper level
1019    
1020    checkpoint51d_post
1021    o change function ILNBLNK (=> last non-blank char.) to return zero
1022      (instead of the string length) when the string. char is empty
1023    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1024    o modif's to restore TAMC compatibility
1025      - avoid "_d" constructs in PARAMETER declarations
1026      - avoid interrupting lines by comment lines
1027    o Use cluster local disks for purely local I/O
1028      vs. globally visible disks needed for ctrl stuff
1029      (merged from ecco-branch)
1030      - new active_file_loc... and mdsio_..._loc routines
1031      - affected packages: autodiff, ctrl, grdchk, mdsio
1032    
1033    checkpoint51c_post
1034    o introducing integer flag debugLevel
1035      - debLevZero: suppress all output
1036      - debLevA: standard
1037      - debLevB: equivalent to current debugMode=.TRUE.
1038    o introducing pathname variable mdsioLocalDir for mdsio
1039      that can be specified at runtime
1040      (relevant for cluster I/O to local disk)
1041    `
1042    >>>checkpoint51b_post
1043    adjoint of ptracers
1044    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1045    o extended state in checkpoint_lev?, etc.
1046    o alternative ctrl/cost with tr1 or ptracer
1047    o new comlev1_bibj_ptracers
1048    o new ptracers.flow
1049    o made ptracers_forcing same as external_forcing_s
1050    o added verification for adjoint with ptracers
1051      - adm. grdchk fail so far
1052      - tlm. grdchk OK
1053      - checked tapelev/comlev recomputations: OK
1054    <<<checkpoint51b_pre
1055    
1056    checkpoint51a_post
1057    o added code for biogeochemistry package
1058      - new pkgs: dic, gchem
1059      - new subroutine in ptracers
1060    o modify code for biogeo packages
1061      - in model/src and pkg/ptracers
1062    
1063    checkpoint51
1064    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1065      - autodiff, ctrl, exf, grdchk, seaice
1066      kept separate packages
1067      - cost, ecco, obcs
1068    o updating verification/internal_wave, verification/lab_sea
1069      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1070    
1071    checkpoint50i_post
1072    o Preparing next differentiable checkpoint and sync
1073      of MAIN vs. ecco-branch
1074      - 1st step: this one is differentiable
1075      - 2nd step: next(! not this) checkpoint will have updated packages
1076                  from ecco-branch)
1077    
1078    checkpoint50h_post
1079    o new package "land": provide surface BC for AIM.
1080    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1081    o AIM: use true log-P extrapolation for near surface temp (= as in
1082        F.Molteni paper) ; update aim.5l_cs output.
1083    o New variable in PARM03 for more flexible pickups
1084    o somewhat cleaned package initialisation sequence for
1085      ctrl/ cost/ ecco/ in packages_... routines
1086    
1087    checkpoint50g_post
1088    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1089      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1090      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1091        made the default because of faster convergence than ADI
1092    
1093    checkpoint50f_post
1094    o exf totally restructured
1095      - replaced all exf_set_ routines by one generic exf_set_gen.F
1096        and made sure it's still differentiable
1097      - split exf_getffields.F into new exf_bulkformulae.F
1098      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1099      - updated adjoint/makefile and relevant verif. accordingly
1100    
1101    checkpoint50f_pre
1102     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1103          + change Evap over land. (update aim.5l_cs output)
1104     o added missing .cvsignores and made uniform across expts
1105     o changed configuration of tidal_basin_2d expt
1106     o added pkg/debug functions for tracing code in fatal crashes
1107     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1108     o new fn in pkg/monitor to stop model if solution grows too big
1109     o removed lots of single quotes from comments
1110    
1111    checkpoint50e_post
1112    o make KPP work with PTRACERS
1113     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1114       nearly a copy of kpp_transport_s
1115     - there is no analogue to SurfaceTendencyS, so I have to use
1116       gPtr(of the surface layer) instead
1117    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1118    checkpoint50e_pre
1119    
1120    checkpoint50d_post
1121    o change kpp output from multiple-record state files to single-record state
1122      files analogous to write_state.F
1123    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1124      analogous to the cg2d-related output.
1125    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1126      so that writing to internal file fn (with length 512) fails.
1127    checkpoint50d_pre
1128    
1129    checkpoint50c_post
1130    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1131    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1132    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1133    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1134    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1135    
1136    checkpoint50c_pre
1137    Merging from release1_p13:
1138    o bug fix for pkg/seaice dynamic solver
1139    o Added SEAICE_initialHEFF to pkg/seaice
1140    
1141    checkpoint50b_post
1142    o store u*,v* in gU,V instead of in guNm1,gvNm1
1143    o in order to put the momForcing out of the Adams-Bashforth:
1144      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1145      to timestep.F
1146    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1147    o re-generate output for highly sensitive test-exp:
1148       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1149    
1150    checkpoint50b_pre
1151    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1152    o corrected CPP option mismatch in exf_Bulk... functions for case
1153      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1154    
1155    checkpoint50a_post
1156    o Bug fix for merging between c50 and KPP.
1157      ikey was passed from thermodynamics to kpp_calc via
1158      common block rather than being recomputed in kpp_calc,
1159      in contradiction with new key itdkey.
1160      New key ikppkey created, and tamc.h headers updated.
1161    
1162    checkpoint50
1163    - 2nd step of merge with ecco-branch:
1164      merge changes in ecco-branch back into main trunk
1165    - bug fix in find_alpha
1166    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1167    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1168    - merged some sliced AD support routines
1169    
1170    checkpoint49
1171    merged from ecco-branch:
1172    o exf:
1173      - Enable initialisation of forcing fields to constant
1174        (runtime) values.
1175      - in exf_getffields.F
1176        Reduce i-/j-loop to interior domain, discarding overlaps.
1177        That also fixes wrong TAF-key computations for key_1, key_2
1178        with bulf formulae.
1179      - exf_init.F modify #ifdef for exf_init_evap
1180      - exf_getffieldrec.F, ctrl_getrec.F
1181        The following INT-usages are not safe:
1182          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1183          fldcount = int(fldsecs/fldperiod) + 1
1184        and were modified.
1185    o autodiff: checkpoint_lev...
1186      - updated storing for bulk formulae (some arrays were missing)
1187      - added state for seaice package
1188      - synchronized with main branch
1189    o DIVA:
1190      Modif.s in
1191      - the_main_loop.F
1192      - the_model_main.F
1193      and added cost_final_restore.F cost_final_store.F
1194      o With these changes, it is possible to fully separate
1195        the first forward run to compute the cost function (mdthe_main_loop)
1196        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1197        into separate model executions.
1198        This enables better tuning of DIVA to given queue sizes.
1199      o Loss of cost function value in consecutive DIVA runs is
1200        fixed by storing to 'costfinal' file.
1201      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1202        beginning/end of adjoint integration is accounted for.
1203      The current changes apply to TAF-1.4.26.
1204      TAF has one remaining bug, requiring one manual change
1205      (see MITgcm manual).
1206    o cal: synchronized between MAIN and ecco-branch
1207    
1208    checkpoint48i_post
1209    o Changes to restore differentiability of code w.r.t. previous tag
1210      (mostly adding new routines to make list and replacing
1211      pressure by totPhiHyd).
1212    o Updated and merged grdchk package
1213      - has both ADM and TLM checks
1214      - works for single- and multi-proc.
1215      - output cleaned
1216      - worked successfully for parallel DIVA
1217    o genmake:
1218      - Adding -platform=SP4
1219      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1220    o Modif. for DIVA:
1221      ctrl_unpack should not be called in intermediate DIVA interval.
1222      (similar thing would apply for active files such as
1223      tbar, sbar, psbar, which should not be reinitialised;
1224      only relevant for ecco-branch)
1225    
1226    checkpoint48h_post
1227    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1228    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1229    o Added SEAICE_initialHEFF to pkg/seaice
1230    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1231    
1232    checkpoint48g_post
1233    --- EOS:
1234    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1235      store total Potential in totPhyHyd for diagnostics & EOS.
1236    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1237    --- Pressure/geopotential gradient:
1238    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1239    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1240      ( changes results of global_ocean_pressure )
1241    o NLFS + z-coord.: add eta*Rho' contribution.
1242    o accurate phiHyd when using interface-W at the middle between 2 centers
1243     ( changes results of ideal_2D_oce )
1244    o includes r* 2nd term in potential gradient.
1245    
1246    checkpoint48f_post
1247    Merging from release1_p12:
1248    o Modifications for using pkg/exf with pkg/seaice
1249      - improved description of the various forcing configurations
1250      - added basic radiation bulk formulae to pkg/exf
1251      - units/sign fix for evap computation in exf_getffields.F
1252      - updated verification/global_with_exf/results/output.txt
1253    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1254      (SBO) core products, including oceanic mass, center-of-mass,
1255      angular, and bottom pressure (see pkg/sbo/README.sbo).
1256    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1257      to avoid negative values in shallow regions.
1258      - updated verification/natl_box/results/output.txt
1259      - updated verification/lab_sea/results/output.txt
1260    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1261    o Added useSingleCpuIO option (see PARAMS.h).
1262    o Updated useSingleCpuIO option in mdsio_writefield.F to
1263      work with multi-field files, e.g., for single-file pickup.
1264    o pkg/seaice:
1265      - bug fix in growth.F: QNET for no shortwave case
1266      - added HeffFile for specifying initial sea-ice thickness
1267      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1268    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1269      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1270    o pkg/seaice:
1271      - adjoint-friendly modifications
1272      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1273    
1274    checkpoint48e_post
1275    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1276    o dynamics: change definition of computational domain & adapt mom_fluxform
1277      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1278    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1279        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1280        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1281        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1282        inverted_barometer solid-body.cs-32x32x1
1283      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1284    
1285    checkpoint48d_post
1286    o in preparation for r*:
1287     a) use pre-computed gradient of hydrostatic potential:
1288        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1289     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1290        => affects results of glob_oce_pressure (different truncation error)  
1291      update output.txt of ideal_2D_oce & global_ocean_pressure
1292    
1293    checkpoint48d_pre
1294    o in preparation for r*:
1295      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1296      pass the 2 comp. of the grad. as arguments to momentum S/R.
1297      but for the moment, only used if it does not change the results.
1298    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1299    
1300    checkpoint48c_post
1301    Modifications in treatment of initial flux forcing controls
1302    to avoid extra storing of flux fields.
1303    
1304    checkpoint48c_pre
1305    o Added tidal_basin_2d experiment (currently 1D!)
1306    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1307    
1308    checkpoint48b_post
1309    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1310     (modification to pressure gradient not yet implemented)
1311    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1312      (for U & V) that are used for vertical advection of momentum.
1313    
1314    checkpoint48a_post
1315    o In preparation for r*, use temp. array to compute vertical transport
1316       in flux-form momentum pkg. => change results of few test-exp.
1317      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1318                        lab_sea, natl_box & plume_on_slope
1319    
1320    checkpoint48
1321    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1322    
1323    checkpoint47j_post
1324    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1325    o moved adexch from forward_step to addummy_in_stepping
1326    o added exch in ctrl_map_...
1327    o aveFreq.=0. at end of cost_final to avoid overwrite in
1328      reverse checkpointing loop
1329    o Yet more changes in gmredi:
1330      * adgmredi_calc_tensor
1331        avoiding all recomputation of gmredi_slope_limit
1332      * adgmredi_x/y/rtransport
1333        added flag for excessive storing to avoid recomp. of
1334        u/v/rtans, dTdx/y/z
1335        -> this is not really necessary and very memory-consuming
1336      * adgmredi_slope_psi:
1337        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1338      * gmredi_slope_limit
1339        re-activated full calculation of taperfct for case 'ac02'
1340    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1341    
1342    checkpoint47i_post
1343    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1344    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1345      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1346    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1347    o gmredi: fix few bugs.
1348    
1349    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1350    This will be a good checkpoint to plug into the ecco-branch.
1351    o few modif.'s to get latest version adjointed
1352      (mainly kick out code in ini_linear_phisurf)
1353    o modif's to run adjoint with exactConserv
1354    o case GM_BOLUS_ADVEC should be cleaned
1355      S/R gmredi_slope_psi should be cleaned
1356    o verification/carbon now has exactConserv=.TRUE.
1357    
1358    checkpoint47g_post
1359    o time-average AIM output: becomes independent from statvars time-average
1360      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1361    o After TAF bug fix:
1362      Tested adjoint of gmredi package.
1363      Tests were done with checkpoint47 rather than with latest
1364      checkpoint47f_post since the latter is broken for the adjoint
1365      verification/carbon/ contains both ADM and TLM gradient checks.
1366    Here they are, before they get changed/lost/stolen.
1367    Mostly modif.'s to fix numerical sensitivities.
1368    Gradient checks OK for
1369    - GM_taper_scheme:
1370      * clipping
1371      * ac02
1372      * linear
1373      * glw91
1374      * dm95
1375      * ldd97
1376    - GMREDI_OPTIONS:
1377      * GM_VISBECK_VARIABLE_K
1378      * GM_NON_UNITY_DIAGONAL
1379      * GM_EXTRA_DIAGONAL
1380      * GM_BOLUS_ADVEC
1381    in conjunction with data.gmredi parameters to be checked in
1382    in a few minutes under verification/carbon/code/
1383    
1384    checkpoint47f_post
1385    Merging from release1_p10:
1386    o modifications for using pkg/exf with pkg/seaice
1387      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1388        and SEAICE_EXTERNAL_FLUXES
1389      - pkg/exf CPP options EXF_READ_EVAP and
1390        EXF_NO_BULK_COMPUTATIONS
1391      - usage examples are Experiments 8 and 9 in
1392        verification/lab_sea/README
1393      - verification/lab_sea default experiment now uses
1394        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1395    
1396    checkpoint47e_post
1397    o created a tag prior to creating a branch
1398    
1399    checkpoint47d_post
1400    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1401      at the bottom boundary had an erroneous half slip boundary condition
1402    o added bottom drag and no slip boundary condition capabilities to
1403      oceanic pressure coordinates code
1404    o added new verification experiment global_ocean_pressure, this experiment is
1405      also described in the tutorial section of the manual
1406    checkpoint47d_pre
1407    
1408    checkpoint47c_post
1409    o Added a verification experiment for a global cubed-sphere ocean run
1410      -  verification/global_ocean.cubed32x32x30
1411      -  uses pkg/therm_seaice and pkg/bulk_forcing
1412    
1413    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1414    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1415      when using P-coordinate; only implemented for atmospheric config.
1416    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1417      NOTES: requires option NONLIN_FRSURF to be "#define".
1418    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1419    
1420    checkpoint47b_post
1421    Merging from release1_p9:
1422    o pkg/seaice
1423      - removed GOTO's and added taf directives
1424      - double precision constants to reduce the g77 (Linux)
1425        to F77 (SGI) differences reported in release1_p8
1426    o tools/genmake
1427      - added SGI options
1428    o verification/testscript
1429      - updated to that of checkpoint47a_post
1430    o verification/global_ocean.90x40x15/input/eedata
1431      - modified for SGI f77 compatibility
1432    o verification/lab_sea
1433      - added description of sea-ice model
1434      - added missing matlab routines
1435      - added test of thermodynamics parallelization
1436    
1437    checkpoint47a_post
1438    o new pkg: aim_v23
1439     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1440       for now, keep the same surface forcing as before.
1441     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1442     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1443     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1444    o add diagnostic of surface correction term in monitor output
1445    
1446    o bulk_force and therm_seaice
1447    - Two packages:  bulk_force (Bulk forcing)
1448      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1449    - Earlier integration from Stephaine Dutkiewicz
1450      and Patrick Heimbach.
1451    - Two ifdef statements for compile time,
1452       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1453    
1454    checkpoint47
1455    differentiable version of checkpoint46n_post
1456    o bug fix in quasihydrostaticterms
1457    o * "clean" adjoint code (in terms of extensive recomputations)
1458        can now be obtained for all GMREDI options (i.e. for
1459        - GM_VISBECK_VARIABLE_K
1460        - GM_NON_UNITY_DIAGONAL
1461        - GM_EXTRA_DIAGONAL
1462        - GM_BOLUS_ADVEC )
1463      * However, wrong gradient check problem remains unsolved.
1464      * New CPP options have been introduced for different
1465        tapering schemes
1466    o external_fields_load now part of differentiation list
1467    o pressure needs multiple storing;
1468      would be nice to have store_pressure at beginning or
1469      end of forward_step, e.g. by having phiHyd global (5-dim.)
1470      (NB: pressure is needed for certain cases in find_rho,
1471      which is also invoked through convective_adjustment).
1472    o recomputations in find_rho for cases
1473     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1474    o #define ATMOSPHERIC_LOADING should be differentiable
1475    o ini_forcing shifted to begining of initialise_varia
1476    o Incorporating QNVS line search routines into MITgcm
1477      (this is separate code, and therefore not under pkg)
1478      lsopt/, optim/
1479    o Updated verification/carbon/
1480      - #define GM_VISBECK_VARIABLE_K
1481      - GM_taper_scheme    = 'ldd97'    
1482    
1483    checkpoint46n_post
1484    Merging from release1_p8:
1485    o verification/natl_box:
1486      updating new external_fields_load routine
1487    o New package: pkg/seaice
1488      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1489      The sea-ice code is based on Hibler (1979-1980).
1490      Two sea-ice dynamic solvers, ADI and LSR, are included.
1491      In addition to computing prognostic sea-ice variables and diagnosing
1492      the forcing/external data fields that drive the ocean model,
1493      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1494      The implied surface heat flux is then stored in variable
1495      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1496      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1497      non-local transport term.  Because this call precedes model
1498      thermodynamics, temperature under sea-ice may not be "exactly" at
1499      the freezing point by the time theta is dumped or time-averaged.
1500      N.B.: fairly large differences in accuracy occur across
1501            different platforms/compilers; comparison between
1502            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1503            generated output gives:
1504       T           S           U           V
1505      C D M    c        m  s        m  s        m  s        m  s
1506      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1507      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1508      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1509    
1510      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1511    o GAD:
1512      - generated new common blocks to account for call of
1513        same gad routines with differing traceridentities
1514        (needed to modify tracerIdentity indices in GAD.h)
1515      - generated separate common blocks for case useCubedSphereExchange
1516        (Department of Futurology)
1517      - parameter lists to gmredi_?transport: added tracerIdentity
1518      - added new key indices to tamc.h
1519    o external_fields_load:
1520      - added this routine to TAF list
1521      - needed to make some common blocks global and additional storing
1522        along the same lines as exf package (checkpoint_lev?_directives.h)
1523    o exf:
1524      updated external forcing package
1525      - bug fixes carried over from ecco-branch
1526        (missing OBCS_OPTIONS.h in two routines)
1527      - enable easy to use "no forcing".
1528      - added exf I/O for atmospheric loading
1529      - added exf I/O for runoff data
1530      - transfered scaling between exf <-> MITgcm to exf namelist
1531    o Adding new verification experiment global_with_exf.
1532      This verification experiment is almost identical to the
1533      global_ocean.90x40x15 experiment, except that it uses
1534      the exf (and cal) package instead of the
1535      external_fields_load routine (cf README file).
1536    
1537    checkpoint46m_post
1538    o modified testscript to return -- when there are no lines of "%MON" output
1539    o added new flag "quasiHydrostatic" for QH mode
1540      and new routine quasihydrostaticterms()
1541    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1542      New routine: mom_u_coriolis_nh()
1543    o fixed sign of non-hydrostatic metric terms in u and v equations.
1544      Depend on correct sign of gravitySign.
1545    o added work.pc* to .cvsignore in aim directories using ifc
1546    o introduced flag for controllin non-hydrostatic metric terms
1547    o removed gravitySign from PARM04
1548    o switched to g77/ifc from pgf77 in aim experiments
1549    
1550    checkpoint46l_post
1551    o made convective adjustment work with pressure coordinates:
1552     - changed the direction of k-loop in convective_adjustment.F for the
1553       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1554     - adjusted the reference pressure k-index in convective_adjustment.F
1555     - adjusted the convection condition in convect.F (in analogy to
1556       calc_ivdc.F)
1557     - convective_adjustment no longer computes anything on the halos
1558     - removed the warnings about negative salinity from find_rho.F and
1559       find_alpha.F; instead the new routine look_for_neg_salinity, called
1560       at the beginning of find_rho, find_alpha, and find_beta, does a
1561       check of the entire slice, if CPP-option
1562       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1563    checkpoint46l_pre
1564    
1565    checkpoint46k_post
1566    o fixed the verification/global_ocean.90x40x15 experiment:
1567     - new bathymetry (the world according to A., JMC, and M.)
1568     - new initial fields and forcing fields (*.bin files)
1569     - new POLY3.COEFFS (for the next release one should switch to a full
1570       equation of state: JMD95P or MDJWF)
1571     - fixed several errors and redundancies in the data file
1572     - experiment uses looped cells
1573     - added matlab directory with diagnostic scripts for plotting of output
1574    
1575    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1576     - read AIM physics parameters from a file (data.aimphys)
1577     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1578    
1579    checkpoint46j_post
1580    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1581    o move wVel computation at the end of the time step, in S/R integr_continuity
1582    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1583    o update timeave pkg for wVel diagnostic.
1584    checkpoint46j_pre
1585    
1586    checkpoint46i_post
1587    o Clean up AIM package (and keep the results unchanged):
1588      include CPP_OPTION and use IMPLICT NONE in all routines ;
1589      declare all the variables _RL ; use _d 0 for all numerical constants.
1590      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1591    
1592    checkpoint46h_post
1593    o cleaned up the use of rhoNil and rhoConst.
1594      - rhoNil should only appear in the LINEAR equation of state, everywhere
1595        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1596        and the dynamical equations are all divided by rhoConst
1597    o introduced new parameter rhoConstFresh, a reference density of fresh
1598      water, to remove the fresh water flux's dependence on rhoNil. The default
1599      value is 999.8 kg/m^3
1600    o cleanup up external_forcing.F and external_forcing_surf.F
1601      - can now be used by both OCEANIC and OCEANICP
1602    checkpoint46h_pre
1603    
1604     Added code to convert surface volume flux (fresh water) into
1605     a mass flux when using P coordinates in the ocean (OCEANICP).
1606     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1607    
1608    checkpoint46g_post
1609    o Include a new diagnostic variable phiHydLow for the ocean model
1610      - in z-coordinates, it is the bottom pressure anomaly
1611      - in p-coordinates, it is the sea surface elevation
1612      - in both cases, these variable have global drift, reflecting the mass
1613        drift in z-coordinates and the volume drift in p-coordinates
1614      - included time averaging for phiHydLow, be aware of the drift!
1615    o depth-dependent computation of Bo_surf for pressure coordinates
1616      in the ocean (buoyancyRelation='OCEANICP')
1617      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1618        Theta, Salinity, and Pressure in the parameter list. This routine is
1619        presently contained in find_rho.F. This routine does not give the
1620        correct density for 'POLY3', which would be a z-dependent reference
1621        density.
1622    o cleaned up find_rho
1623      - removed obsolete 'eqn' from the parameter list.
1624    o added two new verification experiments: gop and goz
1625      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1626    checkpoint46g_pre
1627    
1628    checkpoint46f_post
1629    o Enable tangent linear (forward mode) gradient checks:
1630      - extended active file handling to g_... files
1631      - added TANGENT_SIMULATION to theSimulationMode
1632      - extended grdchk package accordingly
1633    o added tangent linear setup in verification/carbon/code_ftl
1634    o added adjoint setup in verification/front_relax/code_ad
1635    
1636    checkpoint46e_post
1637    o Added new equation of state -> MDJWF
1638      - EOS of McDougall et al., 2002, JAOT, submitted
1639      - caveat: the equation of state is only valid for a smaller (more
1640        realistic?) range of values than JMD95P/Z and UNESCO
1641      - added masks to the calculation of pressure in store_pressure
1642      - added more check values for density in check_eos (ini_eos.F), some of
1643        the old check values are out of the range of the MDJWF-eos, so don't
1644        expect perfect matches for those
1645    checkpoint46e_pre
1646    
1647    checkpoint46d_post
1648    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1649      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1650      case of pressure coordinates. eosType='JMD95Z' in
1651      combination with buoyancyRelation='OCEANICP' now causes an error.
1652    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1653      in find_alpha/beta.
1654    checkpoint46d_pre
1655    
1656    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1657      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1658    
1659    checkpoint46c_post
1660    o Changes necessary for ocean in p-coordinates
1661     -  Added new buoyancy relation = 'OCEANICP'
1662     -  Added new parameters = gravitySign (this used to be contained inside
1663        the factor dRdZ which I added when we first switched to R coordinates).
1664     X GM/Redi is not compatible (yet)
1665     X bottom drag and no-slip need to be debugged.
1666    checkpoint46c_pre
1667    
1668    checkpoint46b_post
1669    o Added new equation of state -> JMD95Z and JMD95P
1670      - EOS of Jackett and McDougall, 1995, JAOT
1671      - moved all EOS parameters into EOS.h
1672      - new routines ini_eos.F, store_pressure.F
1673    o Added UNESCO EOS, but not recommended because it requires
1674      in-situ temperature (see JMD95)
1675    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1676      unesco.f to be used with POLY3
1677    checkpoint46b_pre
1678    
1679    checkpoint46a_post
1680    o Added (atmospheric) pressure loading
1681      - new field in FFIELDS.h, etc...
1682      - new cpp flag ATMOSPHERIC_LOADING
1683    o Changed hFacC to _hFacC in calc_phi_hyd.F
1684    o Added SHORTWAVE_HEATING to some files for consistency
1685    checkpoint46a_pre
1686    
1687    checkpoint46
1688    further merges from release1_p5
1689    o new ctrl package
1690      - adopted from ECCO environment to enable optimization
1691      - added Eliassen Palm fluxes to controls
1692    o added Eliassen Palm flux controls to gradient check package
1693    o cost package
1694      - Compatible with new ctrl package
1695      - added Eliassen Palm cost hooks
1696      - modif's of existing cost functions
1697    o Adjoint-related bug fixes in kpp:
1698      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1699      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1700    o autodiff package
1701      - flow directives:
1702        + new for S/R do_the_model_io
1703        + enhanced for S/R checkpoint
1704        + new gmredi.flow
1705      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1706        disable adcommon.h/g_common.h by default.
1707      - fixed problem for adjoint of global_max
1708    o modified verification/carbon/
1709    o New setup for adjoint of global_ocean
1710    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1711    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1712    o incorporated hooks for sponge layer code (external_forcing.F)
1713    
1714    checkpoint45d_post
1715    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1716    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1717      (affects plume_on_slope "cg2d" output)
1718    o add new parameter deltaTfreesurf for free-surface time stepping
1719    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1720    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1721    o change phiMin in exp1 (to agree with documentation)
1722    o add new flags:
1723     - T,S forcing inside/outside Adams-Bashforth
1724     - turn off temp,salt advection and/or forcing
1725     - for each tracer, define internal flag for multiDimAdvection & A-B
1726    o monitor: change definition of KE to check conservation of Energy
1727    
1728    checkpoint45c_post
1729    o Removed f90 comments ("!")
1730    o Modified initialisations to enable exf package for MITgcm
1731      (without invoking ECCO_PACKAGE).
1732    o modifications to gradient check package (Martin Losch)
1733      - enable centered differences
1734      - modified format of standard output
1735    
1736    checkpoint45b_post
1737    o cleaned exchange calls in cg2d
1738    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1739    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1740      to configure barotropic setup (Martin Losch)
1741    o moved some initialisations within bi,bj loop in dynamics
1742      (TAF flow dependency)
1743    o in initialise_varia, moved call packages_init_variables
1744      before convective_adjustment_init
1745      (corresponding adjustment of TAF tape initialisation).
1746    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1747    
1748    checkpoint45a_post
1749    o compute Rho over the whole domain (extend iMin,jMin indices)
1750    o specific exchange for X-slice domain (case Ny=1)
1751  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1752  o solve_for_pressure : set cg2d_x to zero where OBCS are applied  o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1753    

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