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revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC revision 1.396 by mlosch, Mon Nov 29 22:50:47 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o add another verification experiment that tests both the cfc-pkg and
7      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
8      reactive tendencies treated inline with regular timestepping
9    o testreport previously did a lousy job of comparing small numbers, so
10      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
11      implemented in the little c-progam tmp_cmpnum.c which is embedded in
12      testreport.
13    o ptracers_monitor: bug fix for MPI
14    
15    checkpoint56a_post
16    o GCHEM: finish reorganizating the package
17      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
18        (introduces another 3D-array for each passive tracer, but only if
19        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
20        gchemTendency is not needed because the timestep is done separately)
21      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
22      - GCHEM is now---more or less cleanly---separate from PTRACERS
23      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
24        so clear to me how that should be done in a general way.
25    o CFC: improve formatting of output in CFC_ATMOS
26    o PTRACERS:
27      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
28        that ALL experiments with ptracers enable can be checked. This makes
29        GCHEM_MONITOR obsolete.
30      - include a runtime parameter PTRACERS_monitorFreq that defaults to
31        monitorFreq
32      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
33    o add PTRACERS (PTR0[1-5]) to testreport output
34    o exf_check_range:
35      * default changed to .TRUE.
36      * will check values for niter0 if debLevA, every timestep if debLevB
37      * STOP in exf_check_range if 'out of range'
38      * range chosen generous to allow for potential extema
39      TBD: a version with stricter range
40           permitted range would be runtime parameters
41    o GMredi:
42      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
43      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
44      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
45    o GCHEM:
46      - move call to GCHEM_FORCING_SEP, so that it is now called before
47        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
48      - introduced a useGCHEM runtime flag and applied it everywhere.
49      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
50        this flag is now only visible within GCHEM-pkg routines.
51      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
52        be replaced by a 3D array that is computed before thermodynamics; for
53        this, the tracer ID iTracer had to be included into the parameter list
54        of ptracers_forcing
55      - set up forward_step to call gchem_forcing, that will replace
56        gchem_forcing_int in ptracers_forcing
57      - cleaning up
58    o small cleaning of exch2: remove files that are also in eesupp/src
59    
60    checkpoint56
61    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
62    o mnc: cleanup "full" files--fixes out-of-memory problem
63    o ECCO-GODAE
64      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
65      * fully merged and updated from SIO code
66        windstress sign change affects
67        - exf_inscal_[u/v]stress
68        - sign of xx_tau[u/v] adjustments
69        - signs in cost_scat
70      * ctrl_get_gen: avoid update of tau[u/v] for first few days
71      * natl_box_adjoint updated and compressed
72      * 2-level checkpoint switch added
73        (tested in EXP. 1 of natl_box_adjoint)
74      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
75    o SVD
76      * first complete, non-hacked version for SVD calculations
77      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
78        performed via direct access files admtlm_vector.it????
79        (via ctrl_[un]pack)
80      * optimcycle is used for ARPACK iteration counter
81        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
82      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
83        and add linear transforms where necessary
84      * controls are initial/final SST, SSS (can be extended; need to check
85        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
86    o mdsio: filename info to both stderr, stdout
87    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
88      from sign change
89    
90    checkpoint55j_post
91    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
92      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
93    o add consistent build directories and .cvsignore files to verification
94    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
95    o make all subroutines 30 or less characters in length for certain older
96      compilers to work (a thorough search only turns up two routines in
97      pkg/ptracers)
98    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
99      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
100    
101    checkpoint55i_post
102    o change arrays for total vertical diffusivity (2.D if explicit,
103      3.D if implicit) ; each ptracer uses its own background value.
104    o added mnc/NetCDF output capability to ocn_compon_interf
105      - added bits to verification/cpl_aim+ocn so that it can run on
106        ITRDA and other clusters without the mpirun "-wd" option
107    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
108      configuration
109    o give MNC the ability to create additional files rather than
110      exceeding a specified file size limit "MNC_MAX_FILESIZE"
111      - the default is just less than 2GB which is a practical limit
112        on many systems
113    o Compute the non-local term using either KPP vertical diffusivity (=default)
114       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
115    
116    checkpoint55h_post
117    o add verification test "vermix"
118    o remove all the *_ioinc flags and replace with the single global
119      outputTypesInclusive flag
120    o allow to set a vertical profile of vertical diffusivity for T & S
121    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
122    o useMNC moved from data.mnc to data.pkg
123    
124    checkpoint55g_post
125    o Renaming carbon AD experiments to comply with testreport conventions
126    o Updating adjoint of Held-Suarez hs94.1x64x5
127    o Fixing directives for non-ECCO forward_step, after ECCO directives
128      have been fixed to avoid recomp. of do_oceanic_phys
129      Works well for global_ocean.90x40x15,
130      but recomp. issue remains for carbon
131    o Updating adjoint output for natl_box_adjoint after
132      pkg/ecco has been modified (see taga c55d_post)
133    
134    checkpoint55f_post
135    o rename to timeave_init_fixed
136    
137    checkpoint55e_post
138    o some delicate re-shuffle of store directives to avoid one
139      extra call of do_oceanic_physics
140      affects ecco_the_main_loop.F, do_oceanic_physics.F
141      checkpoint_lev1_directives.h
142    o NB: this may break global_ocean adjoint temporarily,
143      but it is clear how to fix it. Will do later, need this now.
144    
145    checkpoint55d_post
146    o ECCO specific cost function terms (up-to-date with 1x1 runs)
147    o ecco_cost_weights is modified to 1x1 runs
148    o modifs to allow observations to be read in as
149      single file or yearly files
150    o enable to read exf forcing fields as either
151      single file or yearly files (flag useExfYearlyFields)
152    checkpoint55d_pre
153    
154    o switch between 2-level and 3-level checkpointing
155    o add ability of MNC to write local and "partial" (eg. 2D slices where
156      the full 3D field is never actually stored) arrays to NetCDF files
157      with the correct (that is, the complete multi-dimensional) set of
158      array indicies
159      - used in mom_vecinv() to write the diagFreq output
160      - tested (demonstrated) in verification/aim.5l_cs
161    o further mnc-ification
162      - add verification/lab_sea to the list with mnc setups
163      - fix undefined mnc v-names in cd_code
164      - add kpp to mnc output (both snapshot and timeave)
165    o non-hydrostatic code
166      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
167        in calc_gw.F
168      - defaults to viscAh
169      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
170        friction or Leith) in non-hydrostatic mode, as long as there is
171        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
172    o pkg/cost
173      extend simple cost functions to treat time mean quantities
174      (T,U,V) via cost_accumulate_state from cost_tile
175    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
176        be 2 times larger than the minimum size the advection scheme requires.
177        now get a perfect conservation of salt in advect_cs test-exp (updated)
178    o GGL90 (Gaspar's TKE mixed layer)
179      - add horizontal diffusion of TKE, requires exchanges in
180        do_fields_blocking_exchanges, horizontal diffusivity is zero by
181        default. In OPA there is no horizontal diffusion of TKE but the
182        mixing coefficients are computed from a horizontal average of TKE of
183        6 points or so. I think that diffusion has a little more physical
184        justification.
185      - clean up ggl90_calc in the hope of reducing memory usage (this hope
186        was in vain)
187      - mask tke-variable in ggl90_init
188    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
189    o fix biharmonic diffusion on CS-grid.
190    o more obcs stuff
191      - added obcs_external_fields_load as an alternative to the EXF-pkg option
192        for reading boundary values. This routine is called from
193        obcs_prescribe_read
194      - updated obcs_check
195      - changed sponge layer relaxation parameter units for days to seconds
196      - turned off sponge layer by default
197      - changed argument list of OBCS_CALC to myTime+deltaTclock
198      - fixed about 35 bugs in obcs_external_fields_load
199    
200    checkpoint55c_post
201    o obcs stuff
202      - new runtime flags useOBCSprescribe, useOBCSbalance
203      - re-arranged obcs_calc
204      - moved exf_getobcs to obcs_prescibe_read
205        obcs_prescibe_read is called after ORLANSKI stuff
206        and independent of it (executable can contain all).
207      - updated obcs_check
208      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
209        These may be necessary only if tangential velocities are
210        prescribed at OB, not sure, needs testing.
211    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
212      which simplifies the calls and passes the ifc check-bounds test
213    
214    checkpoint55b_post
215    o add a 2D scalar, Z location, exchange_2 routine.
216    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
217      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
218      affects advect_cs results (for the wrong reason): update output.txt
219    o use a more standard discretization for biharmonic viscosity ;
220     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
221      affects results of dome set-up: update output.txt
222    o fix gad_advection.F (CubedSphere part), back to version 1.23
223    o fix bug in mom_vi_del2uv.F (CubedSphere part).
224    
225    checkpoint55a_post
226    o merged code to
227      * prescribe/read time-dependent open boundaries
228        (works in conjunction with exf, cal)
229      * sponge layer code for open boundaries
230      * each boundary N/S/E/W now has its own CPP option
231        (healthy for the adjoint)
232    
233    checkpoint55
234    o up-to-date adjoint of previous breaks
235      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
236      - global_ocean_ebm: adjoint still needs fix (TLM ok)
237      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
238      - carbon: * remove tr1-related adjoint verification
239                * add ptracer as control variable
240    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
241      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
242    
243    checkpoint54f_post
244    o in verification/carbin/ remove experiment related to
245      ALLOW_PASSIVE_TRACER (array tr1 etc)
246      code_ad/ input_ad/ results_ad
247    
248    o add two new packages
249      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
250        + subject to optimization (memory)
251      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
252        + subject to reordering (many GOTOs in the original code)
253        + so far opps is called for every (i,j) point, and then operates in
254          the vertical; one may want to reorder the scheme in order operate in
255          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
256          fields)
257    o overhaul of IO so that we now have flags for MDSIO and/or MNC
258      - all verification tests compile and run with linux_ia32_g77
259      - defaults are compatible with current input files--nothing
260        should change if you were not previously using MNC
261      - MNC output has been added in numerous places (eg. timeave)
262        but there are still a few writes not yet do-able with MNC
263        (this is in progress)
264      - flags now allow for either/or/both use of MDSIO and MNC and
265        documentation will soon follow
266      - numerous small formatting cleanups for ProTeX
267    o add version info (via BUILD_INFO.h) to MNC and stdout
268    
269    checkpoint54e_post
270    o add two new packages
271      - pp81 (Packanowski and Philander, 1981), Richardson number and
272        stratification dependent mixing
273      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
274      - these scheme operate in a similar manner as KPP (without ghat, of
275        course), however there is only one diffusivity that is used for both
276        temperature and salinity (and passive tracers)ç
277    o add offline package
278    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
279      provided by Stephanie Dutkiewicz
280    o genmake2: add ability to search for C compilers and cleanup test output
281      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
282    
283    checkpoint54d_post
284    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
285    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
286      leading to additional shift by 5 days each year of integration
287       (i.e. leading to considerable offset over the years)
288    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
289    o start with no AB and no initial filtering (staggerTimeStep):
290      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
291    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
292      (external loading & cpl import/export stay in forward_step.F)
293    o update coupling interface to work with new staggerTimeStep
294    o change MDSIO ptracers_pickup.
295    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
296    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
297    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
298    
299    checkpoint54c_post
300    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
301      this affects (truncation error) output.txt of test-exp:
302       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
303    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
304    o change Qnet to always be the net heat flux, (+upward).
305      affects (truncation error) output of natl_box exp.: updated
306    o define the max number of passive tracers in PTRACERS_SIZE.h
307    o start to test mnc routinely in exp0
308    o add sea-ice loading (sIceLoad) as a new forcing field.
309    
310    checkpoint54b_post
311    o add testreport "-j JOBS" option for parallel builds (tested and pretty
312       impressive on Altix and Opteron systems)
313    o diagnostics can now write NetCDF files through the mnc package
314    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
315    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
316    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
317      affects (truncation error) output of lab_sea & natl_box exp.: updated
318    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
319    
320    checkpoint54a_post
321    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
322    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
323    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
324    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
325      + internal_wave (shift in writing cg2d_ini_res)
326    checkpoint54a_pre
327    
328    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
329      - modified verification/lab_sea and natl_box_adjoint accordingly
330    
331    checkpoint54
332    checkpoint53g_post
333    o prepare splitting of thermodynamics: store convect.counter in common block
334    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
335      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
336    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
337    o new parameter "nShapS": allow to treat differently S from T (nShapT)
338    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
339    o restore adjointability
340    
341    checkpoint53f_post
342    o modifications that affect AIM experiment results (update output.txt):
343      - no advection of S at top interface Nr (pkg/generic_advdiff)
344      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
345    o AIM pkg:
346      - include stability function into surf.Flux derivative relative to Tsurf
347      - calculate clear-sky radiation & surface temp. change (for diagnostics)
348    
349    checkpoint53e_post
350    o merged cylindrical coord configuration
351    o added rotating_tank experiment
352    checkpoint53e_pre
353    
354    checkpoint53d_post
355    o faulks upgraded: re-generate output.txt that have changed:
356       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
357    o Added Bryan and Lewis, 1979, vertical diffusivity profile
358    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
359    o added Sadourny discretization of Coriolis
360      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
361      - re-enabled use of omega3 (useAbsVorticity)
362    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
363      vector-invariant equations
364      - note: does *NOT* yet use same variable visc. for no-slip BC's.
365    o recoded the lateral boundary conditions for non-hydrostatic w, this time
366      hopefully without new bugs
367      - still to do: biharmonic friction for non-hydrostatic w
368    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
369    o regenerated output for global_ocean_ebm (using -ieee)
370    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
371      of mom_common/
372      - simple re-arrangement of instructions within computing loop
373    checkpoint53d_pre
374    
375    checkpoint53c_post
376    o new version of coupler for AIM+thSIce and Ocean models
377     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
378     - land: change Evaporation of snow
379     - aim with thSIce: fix bug in snow-precip.
380    o changes to calc_gw.F
381     - bug fix for w^2 term near the bottom boundary
382     - (hopefully) improve the lateral slip boundary condtions for use with
383        partial/looped cells
384      - because the bug fix changes two verification experiments anyway (exp5
385        and plume on slope), change the lateral boundary condition from half slip
386        to the value of no_slip_sides
387    o ebm package wasnt quite up to the parallel task. Fixed that.
388    o Adjoint of EBM package + verification
389      * TLM OK
390      * ADM not sufficient accuracy yet (needs further testing)
391    
392    checkpoint53b_post
393    o Commiting new energy balance model to repository
394      * package is pkg/ebm
395      * verif. is verification/global_ocean_ebm
396      * references are in ebm_driver.F
397    C      * X. Wang, P. Stone and J. Marotzke, 1999:
398    C        Global thermohaline circulation. Part I:
399    C        Sensitivity to atmospheric moisture transport.
400    C        J. Climate 12(1), 71-82
401    C      * X. Wang, P. Stone and J. Marotzke, 1999:
402    C        Global thermohaline circulation. Part II:
403    C        Sensitivity with interactive transport.
404    C        J. Climate 12(1), 83-91
405    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
406    C        Destabilization of the thermohaline circulation
407    C        by atmospheric eddy transports.
408    C        J. Climate 7(12), 1870-1882
409    o Will need long integration testing.
410    checkpoint53b_pre
411    
412    o created pkg/mom_common in preparation for variable viscosity code
413    o renamed and split ini_mnc_io
414    o pkg/land: only liquid water can diffuse or run-off
415    o AIM using land: soil wetness availability account for snow
416    o added printMapIncludesZeros to EEPARMS namelist
417    
418    checkpoint53a_post
419    o restore TAMC compatiility for exf_constants.h
420      (no usage of _d in .h)
421    o Additional storing in KPP in an attempt to fix
422      TAMC problem with adjoint of KPP code.
423      (no success...)
424      Identical code works fine with TAF.
425    o Fixed verification/natl_box_adjoint experiments.
426      Initial conditions for Experiments 4 and 5 are now
427      set to "SEAICE_initialHEFF=0", which is more reasonable,
428      and hence gives results closer to that of Experiment 2.
429      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
430    
431    checkpoint53
432    o stable checkpoint with up to date adjoint
433      TLM tests only run for 1st grdchk at the moment. Its unclear if
434      this is a code problem or a problem with resetting code for g_
435      variables that is being autogenerated wrong.
436      Otherwise:
437       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
438       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
439         are both still in chaos following their security messes.
440    
441    checkpoint52n_post
442    o various build (mostly genmake2) changes including:
443      - ability to build/run more easily within Cygwin and MacOS X
444      - more complicated Makefiles with a stronger dependence on Gnu Make
445    o pkg/seaice modifications
446      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
447        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
448        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
449      - changed proxy for geostrophic velocity and updated
450        verification/lab_sea/results/* accordingly
451      - removed ADI dynamic solver from pkg/seaice
452      - replaced all occurrences of 1/CSTICE or 1/CSUICE
453        they caused a segmentation fault under certain circumstances
454      - removed unused field WATR
455    o bug fix in exf-package:
456      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
457         now reflect that.
458    o small fixes in the cal-package:
459      - set reference date to first of January for the 'model'-calendar
460      - failing of cal_CheckDate in cal_FullDate now actually results in a
461        warning
462    o small modifications in exf-package to increase flexibility:
463      - change climtempfreeze from a constant to a runtime parameter that
464        is specified in data.exf_clim (default = -1.9)
465      - introduce runtime parameter windstressmax (default = 2.0) that is
466        specified in data.exf
467    o fix in pkg/thsice:
468      - update Evap (Tsf changes) to be consistent with Latent heat flux
469      - maintain snow precipitation unchanged (even if Tsf >=0).
470     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
471    
472    checkpoint52m_post
473    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
474      this does not change any of the results, because myIter=0 in swfrac always
475      lead to jwtype=2 (the default anyway), but the call makes little sense
476      as a default
477    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
478    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
479      atmospheric model (AIM) to use it ; add a "slab ocean" component.
480    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
481    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
482    o extending useSingleCpuIO option to work with new exch2 I/O format
483      - old-style, missing-tile I/O is still accessible by defining CPP
484        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
485    o monitor package can write to NetCDF files and/or STDOUT
486    o fix re-definition bug in MNC_GRID_INIT_ALL()
487    o doc/api_reference added
488      - a framework for building an API Reference Manual using all
489        the "protex" comments embedded in the code
490      - see pkg/generic_advdiff, pkg/mnc for examples
491    o MNC:
492      - make myThid the last argument for all subroutines
493      - new default for the grid files: NO halos
494      - add useMNC and other run-time flags
495      - separate per-file-group handling of the unlimited dimension
496      - early initialization of MNC w/ flags read at the eeboot stage
497        and lookup tables set in initialize_fixed
498      - write all MNC output to a freshly-created directory
499    o thermodynamics sea-ice (thsice) is now tested with testreport.
500    o test exp. advect_cs: use the standard cs32 grid ; update output.
501    o Added functionality to grdchk:
502      pick global i,j,k position (or nearest wet) where to perform check.
503    
504    checkpoint52l_post
505    o new land formulation:
506      a) use ground enthalpy as prognostic variable to ensure exact
507         energy conservation.
508      b) account for water temperature and for latent heat of freezing
509         in all processes (rain, run-off, ground storage)
510      c) compute surface and ground temperature implicitly.
511    o aim_v23 modification for new land model:
512      a) Treat separately land / ocean / sea-ice surface fluxes
513         to allow implicit computation of land & sea-ice surface temp.
514      b) add snow precipitation.
515    checkpoint52l_pre
516    
517    o fix problem (when 1 tile is empty) in min/max monitor.
518    o fix bug in timeAve (u,vZetatave in common block)
519    o no restoring terms under ice for pkg/seaice
520    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
521    o bug fix for pkg/seaice pickups
522    o change MNC call locations and add coordinate attributes
523    o mask vorticity at the corner ; affects global_ocean.cs output
524    o fix ini_curvilinear_grid ; test CS experiments with mpi
525    o aim.5l_cs: modify sea-ice fraction input file ; update output
526    o exf: Adding simple range check routine for exf fields after read
527    
528    checkpoint52k_post
529    o removed top-level directory "diags"
530      - we migrated these functions to pkg/timeave a long time ago
531    o fixed bug introduced in pkg/monitor
532    o accuracy ctrlprec = 32 insuffient for gradient checks using
533      averaged fields (I/O via cost_averages)
534      -> use ctrl.h in active_file*.F to control I/O precision.
535    o paramter list of CALL ADTHE_MAIN_LOOP
536    o added initial do_the_model_io to ecco
537    o set all ...Freq to zero after cost_final
538      taveFreq, dumpFreq, pChkptFreq
539    o MAIN and ECCO differentiability restored
540    
541    checkpoint52j_post
542    o fix nchklev in tamc.h for global_ocean...
543    o Bringing flow and store directives up-to-date
544    o Really weird thing!
545      call do_the_model_io from the_main_loop with parameters
546      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
547      TAF places a faulty re-call of initialise_varia
548      after cost_final call which should not be there!
549    checkpoint52j_pre
550    
551    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
552      error messages
553    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
554    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
555      debug output
556    o modfied mdsio_writefield.F to handle non-global files under exch2
557    o update AIM Cubed-Sphere exp (aim.5l_cs):
558      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
559    o update AIM Equatorial Channel exp:
560      use standard aim_v23 pkg and change the SST fields to be more realistic.
561    o globalFile now works with exch2
562    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
563      mon_vort3.F to make exch2 friendly with >1 tile per cube face
564    o limit timeave output for hi-res integrations
565    
566    checkpoint52i_post
567    o removed CPP_EEOPTIONS.h from verification/*/code
568    o updated the tiling for global_ocean_pressure
569    checkpoint52i_pre
570    
571    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
572      the old pkg/aim).
573    
574    checkpoint52h_pre
575    o shortened offending lines in exch2_send_rx?.template
576    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
577    o genmake2: add build & execute test for NetCDF code
578    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
579      old grid files, moved CPP_EEMACROS.h to pkg/exch2
580    o added useSingleCPUIO flag to monitor.F and mon_out.F
581    o added temporary hack for sea-ice dynamics on the cube:
582      metric terms are ignored and it is assumed that
583      there is no sea-ice on cube faces 1, 2, 4, and 5.
584    
585    checkpoint52f_post
586    o added exch2 cube routines to pkg/exch2
587    o modified hs94.cs-32x32x5 to use it
588    o added new grid files to hs94.cs-32x32x5
589    checkpoint52f_pre
590    
591    checkpoint52e_post
592    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
593      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
594    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
595      to work with implicit vertical advection and AB ;
596    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
597    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
598     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
599    checkpoint52e_pre
600    
601    o fix bug in impldiff when Nr=1 or Nr=2.
602    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
603    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
604    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
605      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
606    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
607    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
608    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
609    
610    checkpoint52d_post
611    o re-tiled many expts to allow comparison in multi-processor mode
612      - updated output accordingly
613      - changed hs94.128x64x5 to use intial T from file rather than use the
614        random number generator
615    o add infrastructure in model routines for fizhi and gridalt packages
616    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
617    o changes to permit hi-res, cubed-sphere, configuration
618      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
619      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
620      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
621        of surface winds for the cube
622      (A verification experiment, based on global_ocean.cs32x15, but with
623       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
624       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
625       complete with example surface forcing files and matlab scripts to look
626       at the output and compare it with that of global_ocean.cs32x15.)
627    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
628       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
629       to conform to the common rule.
630    o check-in the first version of the coupler + interfaces for multi-components
631       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
632       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
633       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
634       - ocean and atmos. share the same horizontal grid (no interpolation).
635       - exchanges between component and coupler is done in forward_step
636    o new verification experiment, cpl_aim+ocn:
637       coupled ocean - AIM atmosphere on cs32 grid.
638    
639    checkpoint52d_pre
640    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
641    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
642    
643    checkpoint52c_post
644    o Fixing OPTIONS files for use of exf:
645      - ALLOW_ECCO not needed
646      - ECCO_CPPOPTIONS.h should not be included from
647        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
648        as has been the case in the past
649      - All cal/exf related options are currently set in
650        single header file. Should remain so until we
651        agree on a consistent new policy.
652    o Removed all CPP options for cal package.
653      cal has no more CPP options.
654    o modified STOREs in GAD_ADVECTION
655    o corrected key comp. for passkey
656    
657    checkpoint52b_post
658    o new version: "thsice" of thermodynamic sea-ice pkg:
659     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
660     - modify fluxes but do not change theta directly;
661     - light cleaning of bulk_force pkg (still needed with thsice).
662     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
663       + output_thsice.txt to test thsice & bulk_force pkgs.
664    o put back grid & coriolis monitor output.
665    checkpoint52b_pre
666    
667    o call "do_the_model_io" at the beginning (=> dump initial state)
668    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
669    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
670      (need info on NUMBER_OF_PTRACERS)
671    o missing PTRACERS headers in some routines
672    o default tamc.h in pkg/autodiff supposed to crash
673      to ensure proper customization
674    
675    checkpoint52a_post
676    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
677      - moved surfaceTendencyTice from pkg/seaice to main code
678      - subroutine FREEZE_SURFACE now limits only surface temperature
679        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
680        => new output.txt for global_ocean.cs32x15 & global_with_exf
681      - keep the old version of FREEZE for backward compatibility;
682        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
683      - corresponding modifs for TAF directives
684    o added surface flux output variables to TIMEAVE_STATVARS
685    o time-averaged output for pkg/ptracers
686    o fix problem with ECCO-related divided adjoint
687      snapshot file was missing some ad-variables,
688      but no warning issued by TAF
689    
690    checkpoint52a_pre
691    o some bug fixes for #undef REAL4_IS_SLOW
692    
693    checkpoint52 = ecco_c52_e35
694    o after testing adjoints of checkpoint51u_post
695    
696    checkpoint51u_post
697    o this is the post-merge tag of the ecco-branch
698      (needs another clean checkout and re-testing)
699    o various natl_box_adjoint configs and results
700      but no input fields
701    o obcs adjoint not yet merged!
702    o adding ECCO global 1x1 and 2x2 degree configs
703    o updated/extended some store directives for seaice
704    o pkg/ecco now containes ecco-specific part of cost function
705    o top level routines the_main_loop, forward_step
706      supersede those in model/src/
707      previous input data.cost now in data.ecco
708      (new namelist ecco_cost_nml)
709    o in ctrl/ cleaned some cross-dependencies and updated CPP options
710    
711    checkpoint51t_post
712    o this is the pre-merge tag of the ecco-branch
713    
714    checkpoint51s_post
715    o cleanup: removed various obsolete #define-s
716    o pkg/grdchk
717      - renamed 'ph-grd 3' to 'grad-res'
718      - merged from ecco-branch
719        (remaining bug fixes for obcs gradient checks)
720      - additional high-precision output for testreport
721        (grep for 'precision_grdchk_result')
722    
723    checkpoint51r_post
724    o cleaned up or removed CPP_OPTIONS.h files
725    o updated results for some of the tests to reflect the new
726      optfiles (-ieee: -O0 instead of -O3)
727    
728    checkpoint51q_post
729    o cd_code:
730      - moved cd_scheme.F -> cd_code_scheme.F
731      - separate read_checkpoint from cd_code_ini_vars.F
732      - separated cd_code part from write_checkpoint
733      - updated AD_SOURCE, generated .flow
734      - added CD_CODE_VARS.h to the_main_loop
735      - Moving cd_code specific store dir.s to pkg/cd_code
736    o ctrl package totally restructured
737      - pack/unpack now optional and decoupled from
738        xx_/adxx_ I/O
739      - ctrl_pack/unpack cleaned
740        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
741      - confined inclusion of AD_CONFIG.h to where necessary.
742    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
743    
744    checkpoint51p_post
745    o create initial cd_code package
746      - WARNING: the initialization of fields within packages
747        is broken because INI_FIELDS (where READ_CHECKPOINT is
748        called) is called *before* PACKAGES_INIT_VARIABLES.
749        This seems to be backwards since
750        1) its important to initially zero the entire field including
751           the "halo" region
752        2) zeroing needs to be done *before* reading pickup info
753           and the pickup call might or might not happen in any
754           particular run
755      - this needs an overhaul for R2
756    o cleanup verification/*/code/GMREDI_OPTIONS.h
757    o cleanup testreport
758    
759    checkpoint51o_post
760    o bringing AD-related verif's up to date with genmake2
761      - carbon/
762      - global_ocean.90x40x15/
763      - hs.94.1x64x5/
764      - (front_relax/ )
765    o (more) consistent directory structure for AD-related verif.'s
766    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
767    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
768    o bug fix in find_alpha.F for MDJWF:
769      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
770        change rho -> rho-rhoConst
771      - replace call find_rho to find_rhonum
772    o initialisation of rFlx extended to full array (required by TAF)
773      and shifted to thermodynamics
774    o removed PTRACERS.h in ptracers routine
775    o added surfacetendencyPtr to S/R parameter list pracers_forcing
776    o Correcting initialisations for fVerU, fVerV.
777    o helping TAF to recognize dependency on kUp for
778      fVerU, fVerV
779    o Replacing delZ by delR in pkg/ctrl/
780    checkpoint51o_pre
781    
782    o undid all of cp51 pending some cleanups and discussion
783    o added the [#include "AD_CONFIG.h"] statement to all files that need
784       it for adjoint/tl #defines
785     o re-worked the build logic in genmake2 to support AD_CONFIG.h
786     o removed tools/genmake since it no longer works
787    
788    checkpoint51n_post
789    o modifications to make FREEZE flux visible to pkg/kpp
790      - moved surfaceTendencyTice from pkg/seaice to main code
791      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
792      - subroutine FREEZE now limits only surface temperature
793        (this means new output.txt for global_ocean.90x40x15,
794         global_ocean.cs32x15, and global_with_exf)
795    o added surface flux output variables to TIMEAVE_STATVARS
796    
797    checkpoint51n_pre
798    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
799    o added [#include "AD_CONFIG.h"] to all files that use the following
800      defines:
801      - ALLOW_ADJOINT_RUN
802      - ALLOW_TANGENTLINEAR_RUN
803      - ALLOW_ECCO_OPTIMIZATION
804    
805    checkpoint51m_post
806  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
807    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
808    - various cleanups related to package handling    - various cleanups related to package handling
809      - these changes should have no impact on the forward model
810    
811  checkpoint51l_post  checkpoint51l_post
812  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations

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