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revision 1.167 by heimbach, Tue Jun 24 18:27:09 2003 UTC revision 1.398 by mlosch, Wed Dec 1 23:11:21 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint56b_post
7    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
8      is called from DO_THE_MODEL_IO
9      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
10      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
11      - clean up PTRACERS_WRITE_TIMEAVE a little
12    o add another verification experiment that tests both the cfc-pkg and
13      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
14      reactive tendencies treated inline with regular timestepping
15    o testreport previously did a lousy job of comparing small numbers, so
16      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
17      implemented in the little c-progam tmp_cmpnum.c which is embedded in
18      testreport.
19    o ptracers_monitor: bug fix for MPI
20    
21    checkpoint56a_post
22    o GCHEM: finish reorganizating the package
23      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
24        (introduces another 3D-array for each passive tracer, but only if
25        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
26        gchemTendency is not needed because the timestep is done separately)
27      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
28      - GCHEM is now---more or less cleanly---separate from PTRACERS
29      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
30        so clear to me how that should be done in a general way.
31    o CFC: improve formatting of output in CFC_ATMOS
32    o PTRACERS:
33      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
34        that ALL experiments with ptracers enable can be checked. This makes
35        GCHEM_MONITOR obsolete.
36      - include a runtime parameter PTRACERS_monitorFreq that defaults to
37        monitorFreq
38      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
39    o add PTRACERS (PTR0[1-5]) to testreport output
40    o exf_check_range:
41      * default changed to .TRUE.
42      * will check values for niter0 if debLevA, every timestep if debLevB
43      * STOP in exf_check_range if 'out of range'
44      * range chosen generous to allow for potential extema
45      TBD: a version with stricter range
46           permitted range would be runtime parameters
47    o GMredi:
48      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
49      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
50      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
51    o GCHEM:
52      - move call to GCHEM_FORCING_SEP, so that it is now called before
53        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
54      - introduced a useGCHEM runtime flag and applied it everywhere.
55      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
56        this flag is now only visible within GCHEM-pkg routines.
57      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
58        be replaced by a 3D array that is computed before thermodynamics; for
59        this, the tracer ID iTracer had to be included into the parameter list
60        of ptracers_forcing
61      - set up forward_step to call gchem_forcing, that will replace
62        gchem_forcing_int in ptracers_forcing
63      - cleaning up
64    o small cleaning of exch2: remove files that are also in eesupp/src
65    
66    checkpoint56
67    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
68    o mnc: cleanup "full" files--fixes out-of-memory problem
69    o ECCO-GODAE
70      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
71      * fully merged and updated from SIO code
72        windstress sign change affects
73        - exf_inscal_[u/v]stress
74        - sign of xx_tau[u/v] adjustments
75        - signs in cost_scat
76      * ctrl_get_gen: avoid update of tau[u/v] for first few days
77      * natl_box_adjoint updated and compressed
78      * 2-level checkpoint switch added
79        (tested in EXP. 1 of natl_box_adjoint)
80      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
81    o SVD
82      * first complete, non-hacked version for SVD calculations
83      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
84        performed via direct access files admtlm_vector.it????
85        (via ctrl_[un]pack)
86      * optimcycle is used for ARPACK iteration counter
87        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
88      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
89        and add linear transforms where necessary
90      * controls are initial/final SST, SSS (can be extended; need to check
91        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
92    o mdsio: filename info to both stderr, stdout
93    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
94      from sign change
95    
96    checkpoint55j_post
97    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
98      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
99    o add consistent build directories and .cvsignore files to verification
100    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
101    o make all subroutines 30 or less characters in length for certain older
102      compilers to work (a thorough search only turns up two routines in
103      pkg/ptracers)
104    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
105      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
106    
107    checkpoint55i_post
108    o change arrays for total vertical diffusivity (2.D if explicit,
109      3.D if implicit) ; each ptracer uses its own background value.
110    o added mnc/NetCDF output capability to ocn_compon_interf
111      - added bits to verification/cpl_aim+ocn so that it can run on
112        ITRDA and other clusters without the mpirun "-wd" option
113    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
114      configuration
115    o give MNC the ability to create additional files rather than
116      exceeding a specified file size limit "MNC_MAX_FILESIZE"
117      - the default is just less than 2GB which is a practical limit
118        on many systems
119    o Compute the non-local term using either KPP vertical diffusivity (=default)
120       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
121    
122    checkpoint55h_post
123    o add verification test "vermix"
124    o remove all the *_ioinc flags and replace with the single global
125      outputTypesInclusive flag
126    o allow to set a vertical profile of vertical diffusivity for T & S
127    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
128    o useMNC moved from data.mnc to data.pkg
129    
130    checkpoint55g_post
131    o Renaming carbon AD experiments to comply with testreport conventions
132    o Updating adjoint of Held-Suarez hs94.1x64x5
133    o Fixing directives for non-ECCO forward_step, after ECCO directives
134      have been fixed to avoid recomp. of do_oceanic_phys
135      Works well for global_ocean.90x40x15,
136      but recomp. issue remains for carbon
137    o Updating adjoint output for natl_box_adjoint after
138      pkg/ecco has been modified (see taga c55d_post)
139    
140    checkpoint55f_post
141    o rename to timeave_init_fixed
142    
143    checkpoint55e_post
144    o some delicate re-shuffle of store directives to avoid one
145      extra call of do_oceanic_physics
146      affects ecco_the_main_loop.F, do_oceanic_physics.F
147      checkpoint_lev1_directives.h
148    o NB: this may break global_ocean adjoint temporarily,
149      but it is clear how to fix it. Will do later, need this now.
150    
151    checkpoint55d_post
152    o ECCO specific cost function terms (up-to-date with 1x1 runs)
153    o ecco_cost_weights is modified to 1x1 runs
154    o modifs to allow observations to be read in as
155      single file or yearly files
156    o enable to read exf forcing fields as either
157      single file or yearly files (flag useExfYearlyFields)
158    checkpoint55d_pre
159    
160    o switch between 2-level and 3-level checkpointing
161    o add ability of MNC to write local and "partial" (eg. 2D slices where
162      the full 3D field is never actually stored) arrays to NetCDF files
163      with the correct (that is, the complete multi-dimensional) set of
164      array indicies
165      - used in mom_vecinv() to write the diagFreq output
166      - tested (demonstrated) in verification/aim.5l_cs
167    o further mnc-ification
168      - add verification/lab_sea to the list with mnc setups
169      - fix undefined mnc v-names in cd_code
170      - add kpp to mnc output (both snapshot and timeave)
171    o non-hydrostatic code
172      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
173        in calc_gw.F
174      - defaults to viscAh
175      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
176        friction or Leith) in non-hydrostatic mode, as long as there is
177        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
178    o pkg/cost
179      extend simple cost functions to treat time mean quantities
180      (T,U,V) via cost_accumulate_state from cost_tile
181    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
182        be 2 times larger than the minimum size the advection scheme requires.
183        now get a perfect conservation of salt in advect_cs test-exp (updated)
184    o GGL90 (Gaspar's TKE mixed layer)
185      - add horizontal diffusion of TKE, requires exchanges in
186        do_fields_blocking_exchanges, horizontal diffusivity is zero by
187        default. In OPA there is no horizontal diffusion of TKE but the
188        mixing coefficients are computed from a horizontal average of TKE of
189        6 points or so. I think that diffusion has a little more physical
190        justification.
191      - clean up ggl90_calc in the hope of reducing memory usage (this hope
192        was in vain)
193      - mask tke-variable in ggl90_init
194    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
195    o fix biharmonic diffusion on CS-grid.
196    o more obcs stuff
197      - added obcs_external_fields_load as an alternative to the EXF-pkg option
198        for reading boundary values. This routine is called from
199        obcs_prescribe_read
200      - updated obcs_check
201      - changed sponge layer relaxation parameter units for days to seconds
202      - turned off sponge layer by default
203      - changed argument list of OBCS_CALC to myTime+deltaTclock
204      - fixed about 35 bugs in obcs_external_fields_load
205    
206    checkpoint55c_post
207    o obcs stuff
208      - new runtime flags useOBCSprescribe, useOBCSbalance
209      - re-arranged obcs_calc
210      - moved exf_getobcs to obcs_prescibe_read
211        obcs_prescibe_read is called after ORLANSKI stuff
212        and independent of it (executable can contain all).
213      - updated obcs_check
214      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
215        These may be necessary only if tangential velocities are
216        prescribed at OB, not sure, needs testing.
217    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
218      which simplifies the calls and passes the ifc check-bounds test
219    
220    checkpoint55b_post
221    o add a 2D scalar, Z location, exchange_2 routine.
222    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
223      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
224      affects advect_cs results (for the wrong reason): update output.txt
225    o use a more standard discretization for biharmonic viscosity ;
226     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
227      affects results of dome set-up: update output.txt
228    o fix gad_advection.F (CubedSphere part), back to version 1.23
229    o fix bug in mom_vi_del2uv.F (CubedSphere part).
230    
231    checkpoint55a_post
232    o merged code to
233      * prescribe/read time-dependent open boundaries
234        (works in conjunction with exf, cal)
235      * sponge layer code for open boundaries
236      * each boundary N/S/E/W now has its own CPP option
237        (healthy for the adjoint)
238    
239    checkpoint55
240    o up-to-date adjoint of previous breaks
241      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
242      - global_ocean_ebm: adjoint still needs fix (TLM ok)
243      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
244      - carbon: * remove tr1-related adjoint verification
245                * add ptracer as control variable
246    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
247      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
248    
249    checkpoint54f_post
250    o in verification/carbin/ remove experiment related to
251      ALLOW_PASSIVE_TRACER (array tr1 etc)
252      code_ad/ input_ad/ results_ad
253    
254    o add two new packages
255      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
256        + subject to optimization (memory)
257      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
258        + subject to reordering (many GOTOs in the original code)
259        + so far opps is called for every (i,j) point, and then operates in
260          the vertical; one may want to reorder the scheme in order operate in
261          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
262          fields)
263    o overhaul of IO so that we now have flags for MDSIO and/or MNC
264      - all verification tests compile and run with linux_ia32_g77
265      - defaults are compatible with current input files--nothing
266        should change if you were not previously using MNC
267      - MNC output has been added in numerous places (eg. timeave)
268        but there are still a few writes not yet do-able with MNC
269        (this is in progress)
270      - flags now allow for either/or/both use of MDSIO and MNC and
271        documentation will soon follow
272      - numerous small formatting cleanups for ProTeX
273    o add version info (via BUILD_INFO.h) to MNC and stdout
274    
275    checkpoint54e_post
276    o add two new packages
277      - pp81 (Packanowski and Philander, 1981), Richardson number and
278        stratification dependent mixing
279      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
280      - these scheme operate in a similar manner as KPP (without ghat, of
281        course), however there is only one diffusivity that is used for both
282        temperature and salinity (and passive tracers)ç
283    o add offline package
284    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
285      provided by Stephanie Dutkiewicz
286    o genmake2: add ability to search for C compilers and cleanup test output
287      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
288    
289    checkpoint54d_post
290    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
291    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
292      leading to additional shift by 5 days each year of integration
293       (i.e. leading to considerable offset over the years)
294    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
295    o start with no AB and no initial filtering (staggerTimeStep):
296      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
297    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
298      (external loading & cpl import/export stay in forward_step.F)
299    o update coupling interface to work with new staggerTimeStep
300    o change MDSIO ptracers_pickup.
301    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
302    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
303    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
304    
305    checkpoint54c_post
306    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
307      this affects (truncation error) output.txt of test-exp:
308       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
309    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
310    o change Qnet to always be the net heat flux, (+upward).
311      affects (truncation error) output of natl_box exp.: updated
312    o define the max number of passive tracers in PTRACERS_SIZE.h
313    o start to test mnc routinely in exp0
314    o add sea-ice loading (sIceLoad) as a new forcing field.
315    
316    checkpoint54b_post
317    o add testreport "-j JOBS" option for parallel builds (tested and pretty
318       impressive on Altix and Opteron systems)
319    o diagnostics can now write NetCDF files through the mnc package
320    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
321    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
322    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
323      affects (truncation error) output of lab_sea & natl_box exp.: updated
324    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
325    
326    checkpoint54a_post
327    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
328    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
329    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
330    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
331      + internal_wave (shift in writing cg2d_ini_res)
332    checkpoint54a_pre
333    
334    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
335      - modified verification/lab_sea and natl_box_adjoint accordingly
336    
337    checkpoint54
338    checkpoint53g_post
339    o prepare splitting of thermodynamics: store convect.counter in common block
340    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
341      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
342    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
343    o new parameter "nShapS": allow to treat differently S from T (nShapT)
344    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
345    o restore adjointability
346    
347    checkpoint53f_post
348    o modifications that affect AIM experiment results (update output.txt):
349      - no advection of S at top interface Nr (pkg/generic_advdiff)
350      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
351    o AIM pkg:
352      - include stability function into surf.Flux derivative relative to Tsurf
353      - calculate clear-sky radiation & surface temp. change (for diagnostics)
354    
355    checkpoint53e_post
356    o merged cylindrical coord configuration
357    o added rotating_tank experiment
358    checkpoint53e_pre
359    
360    checkpoint53d_post
361    o faulks upgraded: re-generate output.txt that have changed:
362       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
363    o Added Bryan and Lewis, 1979, vertical diffusivity profile
364    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
365    o added Sadourny discretization of Coriolis
366      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
367      - re-enabled use of omega3 (useAbsVorticity)
368    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
369      vector-invariant equations
370      - note: does *NOT* yet use same variable visc. for no-slip BC's.
371    o recoded the lateral boundary conditions for non-hydrostatic w, this time
372      hopefully without new bugs
373      - still to do: biharmonic friction for non-hydrostatic w
374    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
375    o regenerated output for global_ocean_ebm (using -ieee)
376    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
377      of mom_common/
378      - simple re-arrangement of instructions within computing loop
379    checkpoint53d_pre
380    
381    checkpoint53c_post
382    o new version of coupler for AIM+thSIce and Ocean models
383     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
384     - land: change Evaporation of snow
385     - aim with thSIce: fix bug in snow-precip.
386    o changes to calc_gw.F
387     - bug fix for w^2 term near the bottom boundary
388     - (hopefully) improve the lateral slip boundary condtions for use with
389        partial/looped cells
390      - because the bug fix changes two verification experiments anyway (exp5
391        and plume on slope), change the lateral boundary condition from half slip
392        to the value of no_slip_sides
393    o ebm package wasnt quite up to the parallel task. Fixed that.
394    o Adjoint of EBM package + verification
395      * TLM OK
396      * ADM not sufficient accuracy yet (needs further testing)
397    
398    checkpoint53b_post
399    o Commiting new energy balance model to repository
400      * package is pkg/ebm
401      * verif. is verification/global_ocean_ebm
402      * references are in ebm_driver.F
403    C      * X. Wang, P. Stone and J. Marotzke, 1999:
404    C        Global thermohaline circulation. Part I:
405    C        Sensitivity to atmospheric moisture transport.
406    C        J. Climate 12(1), 71-82
407    C      * X. Wang, P. Stone and J. Marotzke, 1999:
408    C        Global thermohaline circulation. Part II:
409    C        Sensitivity with interactive transport.
410    C        J. Climate 12(1), 83-91
411    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
412    C        Destabilization of the thermohaline circulation
413    C        by atmospheric eddy transports.
414    C        J. Climate 7(12), 1870-1882
415    o Will need long integration testing.
416    checkpoint53b_pre
417    
418    o created pkg/mom_common in preparation for variable viscosity code
419    o renamed and split ini_mnc_io
420    o pkg/land: only liquid water can diffuse or run-off
421    o AIM using land: soil wetness availability account for snow
422    o added printMapIncludesZeros to EEPARMS namelist
423    
424    checkpoint53a_post
425    o restore TAMC compatiility for exf_constants.h
426      (no usage of _d in .h)
427    o Additional storing in KPP in an attempt to fix
428      TAMC problem with adjoint of KPP code.
429      (no success...)
430      Identical code works fine with TAF.
431    o Fixed verification/natl_box_adjoint experiments.
432      Initial conditions for Experiments 4 and 5 are now
433      set to "SEAICE_initialHEFF=0", which is more reasonable,
434      and hence gives results closer to that of Experiment 2.
435      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
436    
437    checkpoint53
438    o stable checkpoint with up to date adjoint
439      TLM tests only run for 1st grdchk at the moment. Its unclear if
440      this is a code problem or a problem with resetting code for g_
441      variables that is being autogenerated wrong.
442      Otherwise:
443       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
444       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
445         are both still in chaos following their security messes.
446    
447    checkpoint52n_post
448    o various build (mostly genmake2) changes including:
449      - ability to build/run more easily within Cygwin and MacOS X
450      - more complicated Makefiles with a stronger dependence on Gnu Make
451    o pkg/seaice modifications
452      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
453        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
454        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
455      - changed proxy for geostrophic velocity and updated
456        verification/lab_sea/results/* accordingly
457      - removed ADI dynamic solver from pkg/seaice
458      - replaced all occurrences of 1/CSTICE or 1/CSUICE
459        they caused a segmentation fault under certain circumstances
460      - removed unused field WATR
461    o bug fix in exf-package:
462      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
463         now reflect that.
464    o small fixes in the cal-package:
465      - set reference date to first of January for the 'model'-calendar
466      - failing of cal_CheckDate in cal_FullDate now actually results in a
467        warning
468    o small modifications in exf-package to increase flexibility:
469      - change climtempfreeze from a constant to a runtime parameter that
470        is specified in data.exf_clim (default = -1.9)
471      - introduce runtime parameter windstressmax (default = 2.0) that is
472        specified in data.exf
473    o fix in pkg/thsice:
474      - update Evap (Tsf changes) to be consistent with Latent heat flux
475      - maintain snow precipitation unchanged (even if Tsf >=0).
476     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
477    
478    checkpoint52m_post
479    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
480      this does not change any of the results, because myIter=0 in swfrac always
481      lead to jwtype=2 (the default anyway), but the call makes little sense
482      as a default
483    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
484    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
485      atmospheric model (AIM) to use it ; add a "slab ocean" component.
486    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
487    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
488    o extending useSingleCpuIO option to work with new exch2 I/O format
489      - old-style, missing-tile I/O is still accessible by defining CPP
490        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
491    o monitor package can write to NetCDF files and/or STDOUT
492    o fix re-definition bug in MNC_GRID_INIT_ALL()
493    o doc/api_reference added
494      - a framework for building an API Reference Manual using all
495        the "protex" comments embedded in the code
496      - see pkg/generic_advdiff, pkg/mnc for examples
497    o MNC:
498      - make myThid the last argument for all subroutines
499      - new default for the grid files: NO halos
500      - add useMNC and other run-time flags
501      - separate per-file-group handling of the unlimited dimension
502      - early initialization of MNC w/ flags read at the eeboot stage
503        and lookup tables set in initialize_fixed
504      - write all MNC output to a freshly-created directory
505    o thermodynamics sea-ice (thsice) is now tested with testreport.
506    o test exp. advect_cs: use the standard cs32 grid ; update output.
507    o Added functionality to grdchk:
508      pick global i,j,k position (or nearest wet) where to perform check.
509    
510    checkpoint52l_post
511    o new land formulation:
512      a) use ground enthalpy as prognostic variable to ensure exact
513         energy conservation.
514      b) account for water temperature and for latent heat of freezing
515         in all processes (rain, run-off, ground storage)
516      c) compute surface and ground temperature implicitly.
517    o aim_v23 modification for new land model:
518      a) Treat separately land / ocean / sea-ice surface fluxes
519         to allow implicit computation of land & sea-ice surface temp.
520      b) add snow precipitation.
521    checkpoint52l_pre
522    
523    o fix problem (when 1 tile is empty) in min/max monitor.
524    o fix bug in timeAve (u,vZetatave in common block)
525    o no restoring terms under ice for pkg/seaice
526    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
527    o bug fix for pkg/seaice pickups
528    o change MNC call locations and add coordinate attributes
529    o mask vorticity at the corner ; affects global_ocean.cs output
530    o fix ini_curvilinear_grid ; test CS experiments with mpi
531    o aim.5l_cs: modify sea-ice fraction input file ; update output
532    o exf: Adding simple range check routine for exf fields after read
533    
534    checkpoint52k_post
535    o removed top-level directory "diags"
536      - we migrated these functions to pkg/timeave a long time ago
537    o fixed bug introduced in pkg/monitor
538    o accuracy ctrlprec = 32 insuffient for gradient checks using
539      averaged fields (I/O via cost_averages)
540      -> use ctrl.h in active_file*.F to control I/O precision.
541    o paramter list of CALL ADTHE_MAIN_LOOP
542    o added initial do_the_model_io to ecco
543    o set all ...Freq to zero after cost_final
544      taveFreq, dumpFreq, pChkptFreq
545    o MAIN and ECCO differentiability restored
546    
547    checkpoint52j_post
548    o fix nchklev in tamc.h for global_ocean...
549    o Bringing flow and store directives up-to-date
550    o Really weird thing!
551      call do_the_model_io from the_main_loop with parameters
552      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
553      TAF places a faulty re-call of initialise_varia
554      after cost_final call which should not be there!
555    checkpoint52j_pre
556    
557    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
558      error messages
559    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
560    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
561      debug output
562    o modfied mdsio_writefield.F to handle non-global files under exch2
563    o update AIM Cubed-Sphere exp (aim.5l_cs):
564      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
565    o update AIM Equatorial Channel exp:
566      use standard aim_v23 pkg and change the SST fields to be more realistic.
567    o globalFile now works with exch2
568    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
569      mon_vort3.F to make exch2 friendly with >1 tile per cube face
570    o limit timeave output for hi-res integrations
571    
572    checkpoint52i_post
573    o removed CPP_EEOPTIONS.h from verification/*/code
574    o updated the tiling for global_ocean_pressure
575    checkpoint52i_pre
576    
577    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
578      the old pkg/aim).
579    
580    checkpoint52h_pre
581    o shortened offending lines in exch2_send_rx?.template
582    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
583    o genmake2: add build & execute test for NetCDF code
584    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
585      old grid files, moved CPP_EEMACROS.h to pkg/exch2
586    o added useSingleCPUIO flag to monitor.F and mon_out.F
587    o added temporary hack for sea-ice dynamics on the cube:
588      metric terms are ignored and it is assumed that
589      there is no sea-ice on cube faces 1, 2, 4, and 5.
590    
591    checkpoint52f_post
592    o added exch2 cube routines to pkg/exch2
593    o modified hs94.cs-32x32x5 to use it
594    o added new grid files to hs94.cs-32x32x5
595    checkpoint52f_pre
596    
597    checkpoint52e_post
598    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
599      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
600    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
601      to work with implicit vertical advection and AB ;
602    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
603    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
604     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
605    checkpoint52e_pre
606    
607    o fix bug in impldiff when Nr=1 or Nr=2.
608    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
609    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
610    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
611      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
612    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
613    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
614    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
615    
616    checkpoint52d_post
617    o re-tiled many expts to allow comparison in multi-processor mode
618      - updated output accordingly
619      - changed hs94.128x64x5 to use intial T from file rather than use the
620        random number generator
621    o add infrastructure in model routines for fizhi and gridalt packages
622    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
623    o changes to permit hi-res, cubed-sphere, configuration
624      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
625      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
626      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
627        of surface winds for the cube
628      (A verification experiment, based on global_ocean.cs32x15, but with
629       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
630       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
631       complete with example surface forcing files and matlab scripts to look
632       at the output and compare it with that of global_ocean.cs32x15.)
633    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
634       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
635       to conform to the common rule.
636    o check-in the first version of the coupler + interfaces for multi-components
637       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
638       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
639       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
640       - ocean and atmos. share the same horizontal grid (no interpolation).
641       - exchanges between component and coupler is done in forward_step
642    o new verification experiment, cpl_aim+ocn:
643       coupled ocean - AIM atmosphere on cs32 grid.
644    
645    checkpoint52d_pre
646    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
647    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
648    
649    checkpoint52c_post
650    o Fixing OPTIONS files for use of exf:
651      - ALLOW_ECCO not needed
652      - ECCO_CPPOPTIONS.h should not be included from
653        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
654        as has been the case in the past
655      - All cal/exf related options are currently set in
656        single header file. Should remain so until we
657        agree on a consistent new policy.
658    o Removed all CPP options for cal package.
659      cal has no more CPP options.
660    o modified STOREs in GAD_ADVECTION
661    o corrected key comp. for passkey
662    
663    checkpoint52b_post
664    o new version: "thsice" of thermodynamic sea-ice pkg:
665     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
666     - modify fluxes but do not change theta directly;
667     - light cleaning of bulk_force pkg (still needed with thsice).
668     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
669       + output_thsice.txt to test thsice & bulk_force pkgs.
670    o put back grid & coriolis monitor output.
671    checkpoint52b_pre
672    
673    o call "do_the_model_io" at the beginning (=> dump initial state)
674    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
675    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
676      (need info on NUMBER_OF_PTRACERS)
677    o missing PTRACERS headers in some routines
678    o default tamc.h in pkg/autodiff supposed to crash
679      to ensure proper customization
680    
681    checkpoint52a_post
682    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
683      - moved surfaceTendencyTice from pkg/seaice to main code
684      - subroutine FREEZE_SURFACE now limits only surface temperature
685        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
686        => new output.txt for global_ocean.cs32x15 & global_with_exf
687      - keep the old version of FREEZE for backward compatibility;
688        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
689      - corresponding modifs for TAF directives
690    o added surface flux output variables to TIMEAVE_STATVARS
691    o time-averaged output for pkg/ptracers
692    o fix problem with ECCO-related divided adjoint
693      snapshot file was missing some ad-variables,
694      but no warning issued by TAF
695    
696    checkpoint52a_pre
697    o some bug fixes for #undef REAL4_IS_SLOW
698    
699    checkpoint52 = ecco_c52_e35
700    o after testing adjoints of checkpoint51u_post
701    
702    checkpoint51u_post
703    o this is the post-merge tag of the ecco-branch
704      (needs another clean checkout and re-testing)
705    o various natl_box_adjoint configs and results
706      but no input fields
707    o obcs adjoint not yet merged!
708    o adding ECCO global 1x1 and 2x2 degree configs
709    o updated/extended some store directives for seaice
710    o pkg/ecco now containes ecco-specific part of cost function
711    o top level routines the_main_loop, forward_step
712      supersede those in model/src/
713      previous input data.cost now in data.ecco
714      (new namelist ecco_cost_nml)
715    o in ctrl/ cleaned some cross-dependencies and updated CPP options
716    
717    checkpoint51t_post
718    o this is the pre-merge tag of the ecco-branch
719    
720    checkpoint51s_post
721    o cleanup: removed various obsolete #define-s
722    o pkg/grdchk
723      - renamed 'ph-grd 3' to 'grad-res'
724      - merged from ecco-branch
725        (remaining bug fixes for obcs gradient checks)
726      - additional high-precision output for testreport
727        (grep for 'precision_grdchk_result')
728    
729    checkpoint51r_post
730    o cleaned up or removed CPP_OPTIONS.h files
731    o updated results for some of the tests to reflect the new
732      optfiles (-ieee: -O0 instead of -O3)
733    
734    checkpoint51q_post
735    o cd_code:
736      - moved cd_scheme.F -> cd_code_scheme.F
737      - separate read_checkpoint from cd_code_ini_vars.F
738      - separated cd_code part from write_checkpoint
739      - updated AD_SOURCE, generated .flow
740      - added CD_CODE_VARS.h to the_main_loop
741      - Moving cd_code specific store dir.s to pkg/cd_code
742    o ctrl package totally restructured
743      - pack/unpack now optional and decoupled from
744        xx_/adxx_ I/O
745      - ctrl_pack/unpack cleaned
746        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
747      - confined inclusion of AD_CONFIG.h to where necessary.
748    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
749    
750    checkpoint51p_post
751    o create initial cd_code package
752      - WARNING: the initialization of fields within packages
753        is broken because INI_FIELDS (where READ_CHECKPOINT is
754        called) is called *before* PACKAGES_INIT_VARIABLES.
755        This seems to be backwards since
756        1) its important to initially zero the entire field including
757           the "halo" region
758        2) zeroing needs to be done *before* reading pickup info
759           and the pickup call might or might not happen in any
760           particular run
761      - this needs an overhaul for R2
762    o cleanup verification/*/code/GMREDI_OPTIONS.h
763    o cleanup testreport
764    
765    checkpoint51o_post
766    o bringing AD-related verif's up to date with genmake2
767      - carbon/
768      - global_ocean.90x40x15/
769      - hs.94.1x64x5/
770      - (front_relax/ )
771    o (more) consistent directory structure for AD-related verif.'s
772    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
773    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
774    o bug fix in find_alpha.F for MDJWF:
775      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
776        change rho -> rho-rhoConst
777      - replace call find_rho to find_rhonum
778    o initialisation of rFlx extended to full array (required by TAF)
779      and shifted to thermodynamics
780    o removed PTRACERS.h in ptracers routine
781    o added surfacetendencyPtr to S/R parameter list pracers_forcing
782    o Correcting initialisations for fVerU, fVerV.
783    o helping TAF to recognize dependency on kUp for
784      fVerU, fVerV
785    o Replacing delZ by delR in pkg/ctrl/
786    checkpoint51o_pre
787    
788    o undid all of cp51 pending some cleanups and discussion
789    o added the [#include "AD_CONFIG.h"] statement to all files that need
790       it for adjoint/tl #defines
791     o re-worked the build logic in genmake2 to support AD_CONFIG.h
792     o removed tools/genmake since it no longer works
793    
794    checkpoint51n_post
795    o modifications to make FREEZE flux visible to pkg/kpp
796      - moved surfaceTendencyTice from pkg/seaice to main code
797      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
798      - subroutine FREEZE now limits only surface temperature
799        (this means new output.txt for global_ocean.90x40x15,
800         global_ocean.cs32x15, and global_with_exf)
801    o added surface flux output variables to TIMEAVE_STATVARS
802    
803    checkpoint51n_pre
804    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
805    o added [#include "AD_CONFIG.h"] to all files that use the following
806      defines:
807      - ALLOW_ADJOINT_RUN
808      - ALLOW_TANGENTLINEAR_RUN
809      - ALLOW_ECCO_OPTIMIZATION
810    
811    checkpoint51m_post
812    o incorporating changes to get TAMC/TAF working in genmake2
813      - added new TAMC/TAF targets to the Makefile
814      - various cleanups related to package handling
815      - these changes should have no impact on the forward model
816    
817    checkpoint51l_post
818    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
819     - faster algorithm for cal_addtime.F
820     - higher precision arithmetic, where needed
821     - pkg/exf *startdate variables changed from calendar date to
822       model integration time
823    
824    checkpoint51l_pre
825    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
826    o enable to apply restoring on S & T only in a latitude band.
827    o update output (external_forcing_surf modif. change truncation errors)
828       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
829    
830    checkpoint51k_post
831    o change default to: useNHMTerms=.FALSE.
832     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
833       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
834     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
835        exp1, ideal_2D_oce
836     - change data file of oceanic exp (leave the results unchanged for now)
837       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
838    o set gravitySign automatically according to the vertical coordinate used
839      (and change sign: back to "logical" value: +1 when R increases downward)
840    o added an include barrier to the default CPP_OPTIONS.h and
841      removed the #include "PACKAGES_CONFIG.h" from it
842    o fix a bug in mom_fluxform (from chk51j_post)
843    
844    checkpoint51j_post
845    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
846    o adjusted some flow directives (dynamics, thermodynamics)
847    o added cubed-sphere case to test cost function
848    o heckpoint_lev?_directives.h now include
849      pkg-specific directives, whenever those are enabled.
850    o Moving pkg-specific flow directives to corresponding pkg
851      Moving pkg-specific differentiation list to corresponding pkg
852      Moving pkg-specific checkpoint-lev storing to corresponding pkg
853      ---> conventions are
854           - pkg_ad.flow
855           - pkg_ad_diff.list
856           - pkg_ad_check_lev?_dir.h
857    
858    checkpoint51i_post
859    o merge of the branch-genmake2
860      - knowingly breaks the older genmake
861      - automatic generation of all ALLOW_${PKG_NAME} defines
862      - new testreport supersedes older testscript
863    o large number of package inclusion and header cleanups
864    checkpoint51i_pre
865    
866    o new output for adjoin of global ocean vector invariant
867    o fix for checkpoint of thermodynamic seaice and bulk_force
868    o Steph gchem various cleanups
869    
870    checkpoint 51h_pre
871    o fixed some single quotes
872    o modify gchem pkg to be more versatile
873    o modifications to clean up dic pkg
874    o add pkg/cfc
875    
876    checkpoint51g_post
877    o provide links for ARPACK and ADM*TLM
878    o start removing verification/vero/
879    o update AD-related stuff
880      (in particular some IF-statements in model/src/ routines)
881    o adding to verification/global_ocean.90x40x15/ adjoint of
882      vector invariant setup
883    
884    checkpoint51f_post
885    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
886    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
887      of tracer Green's fucntions for ocean inversion project.
888    
889    checkpoint51f_pre
890    o Added on-the-fly spatial interpolation capability
891        "USE_EXF_INTERPOLATION" to pkg/exf.
892      - This is a temporary Cartesian-grid hack until
893        the super-duper ESMF coupler becomes available.
894      - See verification/global_with_exf/README for usage example.
895      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
896        flags and modified pkg/seaice accordingly.
897    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
898        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
899        non-local transport term.
900    
901    checkpoint51e_post
902    o pkg/mom_vecinv:
903      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
904      - add time-ave diagnostic of vorticity advection.
905    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
906    o atmospheric geopotential: - include water vapor effect;
907                                - use p^kappa in p* scaling.
908    o land pkg: read initial state from files.
909    o AIM : add stratospheric drag in the upper level
910    
911    checkpoint51d_post
912    o change function ILNBLNK (=> last non-blank char.) to return zero
913      (instead of the string length) when the string. char is empty
914    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
915    o modif's to restore TAMC compatibility
916      - avoid "_d" constructs in PARAMETER declarations
917      - avoid interrupting lines by comment lines
918    o Use cluster local disks for purely local I/O
919      vs. globally visible disks needed for ctrl stuff
920      (merged from ecco-branch)
921      - new active_file_loc... and mdsio_..._loc routines
922      - affected packages: autodiff, ctrl, grdchk, mdsio
923    
924    checkpoint51c_post
925    o introducing integer flag debugLevel
926      - debLevZero: suppress all output
927      - debLevA: standard
928      - debLevB: equivalent to current debugMode=.TRUE.
929    o introducing pathname variable mdsioLocalDir for mdsio
930      that can be specified at runtime
931      (relevant for cluster I/O to local disk)
932    `
933    >>>checkpoint51b_post
934    adjoint of ptracers
935    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
936    o extended state in checkpoint_lev?, etc.
937    o alternative ctrl/cost with tr1 or ptracer
938    o new comlev1_bibj_ptracers
939    o new ptracers.flow
940    o made ptracers_forcing same as external_forcing_s
941    o added verification for adjoint with ptracers
942      - adm. grdchk fail so far
943      - tlm. grdchk OK
944      - checked tapelev/comlev recomputations: OK
945    <<<checkpoint51b_pre
946    
947    checkpoint51a_post
948    o added code for biogeochemistry package
949      - new pkgs: dic, gchem
950      - new subroutine in ptracers
951    o modify code for biogeo packages
952      - in model/src and pkg/ptracers
953    
954  checkpoint51  checkpoint51
955  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
956    - autodiff, ctrl, exf, grdchk, seaice    - autodiff, ctrl, exf, grdchk, seaice

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