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revision 1.50 by adcroft, Thu Sep 27 14:24:19 2001 UTC revision 1.442 by jmc, Sun Feb 6 23:23:00 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o do snap-shot diagnostics at the middle of the time-interval (instead of
7      at the end).
8    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
9      new test for AIM with thSIce + slab-ocean
10    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
11    o move state variable diagnostics to the beginning of the time step ;
12      (note: still needs some work specially for snap-shot diagnostics)
13      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
14    
15    checkpoint57c_post
16    o Change testing option (-ieee) to get closer agreement between g77 & ifort
17    o generate new output.txt files on faulks with g77 & the new -ieee option
18    checkpoint57c_pre
19    
20    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
21      update output.txt of exp. global_ocean.90x40x15
22    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
23      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
24    o add saltFlux(+File) forcing capability with periodicExternalForcing
25    o allow to use pkg diagnostics for GM-Redi & ThSIce output
26    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
27    o improvements for the MNC output from DIAGNOSTICS:
28      - correct handling of the unlimitied dimension
29      - all dims now have associated coordinate variables
30      - variables located at U, V, and Corner ("Z") points are now written
31        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
32        *all* data points are output
33    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
34    o added pkg/seaice/seaice_monitor.F
35    o mdsio_readfield.F can now read files visible only to master MPI process.
36    o pkg/seaice: some test code for ice-modified ocean stress
37    o exf_getffields interpolation defaults to bilinear for all scalar forcing
38      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
39      spurious negative numbers for precipitation and humidity.  Will cause
40      some small numerical differences for integrations using pkg/exf/exf_interp.F.
41    o pkg/ctrl/
42      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
43        May be enabled via doPackDiag
44      *  introduce z-scaling of
45         + gradient (doZscalePack) and
46         + control (doZscaleUnpack)
47    o pkg/mdsio/
48      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
49      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
50    
51    checkpoint57b_post
52    o simplify options in diagnostics_fill arguments (remove weird combinations)
53    o fix MNC coordinate variables so that they now contain per-face index
54      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
55      general, EXCH2 grids are only aligned to a "local" coordinate system
56    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
57    o Implement instantaneous output within pkg diagnostics:
58      setting a negative frequency in data.diagnostics produces
59     "snap-shot" output (as opposed to time-average if freq > 0)
60    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
61      NOTE: change ptracer diagnostics name: use 2 characters to work with
62            more than 9 tracers. Add also diagnostics of advect & diffus flux.
63    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
64      becomes the coordinate variable for the 'T' dimension
65    o add CF-style coordinate variables to MNC
66      - just a first cut:  numbers are meaningless on the cubesphere and
67        missing along the T axis but otherwise it works!
68    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
69    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
70    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
71      this is based directly on what the model compute, so that the content of
72      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
73    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
74    o clean up build options files for SunOS, in particular
75      - remove -traditional from xmakedepend
76      - change -xarch=v9 to -xarch=native for f77
77      - restore use of make (not gmake)
78      - add CC=gcc if using g77
79    o changes per discussion of AM, JMC, & EH3 today:
80      - move redundant "grid" variables out of "state" -- in preparation of
81        creating proper CF-style coordinate variables and in recognition
82        that any/all grid variables can be easily copied (eg. w/NCO) from
83        the grid files into any of the other NetCDF files
84      - *always* output grid variables with MDSIO (this will eventually be
85        changed)
86      - output MNC grid file if useMNC is true
87    o every instance of _END_MASTER() has been found and replaced with
88      _END_MASTER( myThid ) in order to satisfy certain picky Sun
89      preprocessors
90    o re-arrange diagnostics pkg initialisation:
91     - allow each package to extend the available diagnostics list
92     - add some checking and fix small problems (multi-threaded, ...)
93     - new S/R diagnostics_fill (replace fill_diagnostics):
94       look through the short list of active diag. (instead of the long list)
95       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
96    
97    checkpoint57a_post
98    o this set of changes restores TAMC compatibility
99      tested for global_ocean.90x40x15 adjoint on trough
100      (what a pain)
101    
102    checkpoint57a_pre
103    o some modifs in tools/build_options for sunos
104    o call ctrl_pack for ctrl at end for optimcycle=0
105    
106    checkpoint57
107    o add horizontal bi-harmonic viscosity for vertical velocity
108      - new parameter viscA4W (defaults to viscA4)
109      - affects only non-hydrostatic code
110      - to be done: no-slip lateral boundary conditions
111    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
112    o implement Implicit Vertical advection for pTracers
113    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
114      (implemented also for implicit vertical diffusion & advection)
115    o OBCS: extend application of tracer open boundary conditions
116      to a strip beyond the boundary of width Olx/Oly
117    o add call monitor to TAF set of required calls (flow directives)
118      and include in natl_box_adjoint
119    o untangle a few ifdefs related to cost, ctrl, autodiff
120      untangel a few ALLOW_ECCO_OPTIMIZATION
121    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
122      (theta2, salt2 in ecco_cost_weights)
123    
124    checkpoint56c_post
125    o OBCS as control variables
126      - update ctrl_ad_diff.list, obcs_ad_diff.list
127      - remove balance of obcs controls from default
128      - fix index bug nobcs in ctrl_init
129      - fix dummy fields filen in ctrl_pack
130      - add dummy weights for obcs
131    o lsopt: comment out fort.94 output
132    o optim:
133      - remove unnecessary header files
134      - adjusted namelists
135      - add xerbla.F to Makefile
136    o exf:
137      - multiple modifications of exf_check_range
138      - unit change in exf_init_runoff from [m/year] to [m/s]
139    o mdsio:
140      - i/o-vector change debugLevel from debLevA to debLevB
141    
142    checkpoint56b_post
143    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
144      is called from DO_THE_MODEL_IO
145      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
146      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
147      - clean up PTRACERS_WRITE_TIMEAVE a little
148    o add another verification experiment that tests both the cfc-pkg and
149      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
150      reactive tendencies treated inline with regular timestepping
151    o testreport previously did a lousy job of comparing small numbers, so
152      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
153      implemented in the little c-progam tmp_cmpnum.c which is embedded in
154      testreport.
155    o ptracers_monitor: bug fix for MPI
156    
157    checkpoint56a_post
158    o GCHEM: finish reorganizating the package
159      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
160        (introduces another 3D-array for each passive tracer, but only if
161        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
162        gchemTendency is not needed because the timestep is done separately)
163      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
164      - GCHEM is now---more or less cleanly---separate from PTRACERS
165      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
166        so clear to me how that should be done in a general way.
167    o CFC: improve formatting of output in CFC_ATMOS
168    o PTRACERS:
169      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
170        that ALL experiments with ptracers enable can be checked. This makes
171        GCHEM_MONITOR obsolete.
172      - include a runtime parameter PTRACERS_monitorFreq that defaults to
173        monitorFreq
174      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
175    o add PTRACERS (PTR0[1-5]) to testreport output
176    o exf_check_range:
177      * default changed to .TRUE.
178      * will check values for niter0 if debLevA, every timestep if debLevB
179      * STOP in exf_check_range if 'out of range'
180      * range chosen generous to allow for potential extema
181      TBD: a version with stricter range
182           permitted range would be runtime parameters
183    o GMredi:
184      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
185      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
186      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
187    o GCHEM:
188      - move call to GCHEM_FORCING_SEP, so that it is now called before
189        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
190      - introduced a useGCHEM runtime flag and applied it everywhere.
191      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
192        this flag is now only visible within GCHEM-pkg routines.
193      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
194        be replaced by a 3D array that is computed before thermodynamics; for
195        this, the tracer ID iTracer had to be included into the parameter list
196        of ptracers_forcing
197      - set up forward_step to call gchem_forcing, that will replace
198        gchem_forcing_int in ptracers_forcing
199      - cleaning up
200    o small cleaning of exch2: remove files that are also in eesupp/src
201    
202    checkpoint56
203    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
204    o mnc: cleanup "full" files--fixes out-of-memory problem
205    o ECCO-GODAE
206      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
207      * fully merged and updated from SIO code
208        windstress sign change affects
209        - exf_inscal_[u/v]stress
210        - sign of xx_tau[u/v] adjustments
211        - signs in cost_scat
212      * ctrl_get_gen: avoid update of tau[u/v] for first few days
213      * natl_box_adjoint updated and compressed
214      * 2-level checkpoint switch added
215        (tested in EXP. 1 of natl_box_adjoint)
216      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
217    o SVD
218      * first complete, non-hacked version for SVD calculations
219      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
220        performed via direct access files admtlm_vector.it????
221        (via ctrl_[un]pack)
222      * optimcycle is used for ARPACK iteration counter
223        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
224      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
225        and add linear transforms where necessary
226      * controls are initial/final SST, SSS (can be extended; need to check
227        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
228    o mdsio: filename info to both stderr, stdout
229    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
230      from sign change
231    
232    checkpoint55j_post
233    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
234      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
235    o add consistent build directories and .cvsignore files to verification
236    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
237    o make all subroutines 30 or less characters in length for certain older
238      compilers to work (a thorough search only turns up two routines in
239      pkg/ptracers)
240    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
241      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
242    
243    checkpoint55i_post
244    o change arrays for total vertical diffusivity (2.D if explicit,
245      3.D if implicit) ; each ptracer uses its own background value.
246    o added mnc/NetCDF output capability to ocn_compon_interf
247      - added bits to verification/cpl_aim+ocn so that it can run on
248        ITRDA and other clusters without the mpirun "-wd" option
249    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
250      configuration
251    o give MNC the ability to create additional files rather than
252      exceeding a specified file size limit "MNC_MAX_FILESIZE"
253      - the default is just less than 2GB which is a practical limit
254        on many systems
255    o Compute the non-local term using either KPP vertical diffusivity (=default)
256       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
257    
258    checkpoint55h_post
259    o add verification test "vermix"
260    o remove all the *_ioinc flags and replace with the single global
261      outputTypesInclusive flag
262    o allow to set a vertical profile of vertical diffusivity for T & S
263    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
264    o useMNC moved from data.mnc to data.pkg
265    
266    checkpoint55g_post
267    o Renaming carbon AD experiments to comply with testreport conventions
268    o Updating adjoint of Held-Suarez hs94.1x64x5
269    o Fixing directives for non-ECCO forward_step, after ECCO directives
270      have been fixed to avoid recomp. of do_oceanic_phys
271      Works well for global_ocean.90x40x15,
272      but recomp. issue remains for carbon
273    o Updating adjoint output for natl_box_adjoint after
274      pkg/ecco has been modified (see taga c55d_post)
275    
276    checkpoint55f_post
277    o rename to timeave_init_fixed
278    
279    checkpoint55e_post
280    o some delicate re-shuffle of store directives to avoid one
281      extra call of do_oceanic_physics
282      affects ecco_the_main_loop.F, do_oceanic_physics.F
283      checkpoint_lev1_directives.h
284    o NB: this may break global_ocean adjoint temporarily,
285      but it is clear how to fix it. Will do later, need this now.
286    
287    checkpoint55d_post
288    o ECCO specific cost function terms (up-to-date with 1x1 runs)
289    o ecco_cost_weights is modified to 1x1 runs
290    o modifs to allow observations to be read in as
291      single file or yearly files
292    o enable to read exf forcing fields as either
293      single file or yearly files (flag useExfYearlyFields)
294    checkpoint55d_pre
295    
296    o switch between 2-level and 3-level checkpointing
297    o add ability of MNC to write local and "partial" (eg. 2D slices where
298      the full 3D field is never actually stored) arrays to NetCDF files
299      with the correct (that is, the complete multi-dimensional) set of
300      array indicies
301      - used in mom_vecinv() to write the diagFreq output
302      - tested (demonstrated) in verification/aim.5l_cs
303    o further mnc-ification
304      - add verification/lab_sea to the list with mnc setups
305      - fix undefined mnc v-names in cd_code
306      - add kpp to mnc output (both snapshot and timeave)
307    o non-hydrostatic code
308      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
309        in calc_gw.F
310      - defaults to viscAh
311      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
312        friction or Leith) in non-hydrostatic mode, as long as there is
313        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
314    o pkg/cost
315      extend simple cost functions to treat time mean quantities
316      (T,U,V) via cost_accumulate_state from cost_tile
317    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
318        be 2 times larger than the minimum size the advection scheme requires.
319        now get a perfect conservation of salt in advect_cs test-exp (updated)
320    o GGL90 (Gaspar's TKE mixed layer)
321      - add horizontal diffusion of TKE, requires exchanges in
322        do_fields_blocking_exchanges, horizontal diffusivity is zero by
323        default. In OPA there is no horizontal diffusion of TKE but the
324        mixing coefficients are computed from a horizontal average of TKE of
325        6 points or so. I think that diffusion has a little more physical
326        justification.
327      - clean up ggl90_calc in the hope of reducing memory usage (this hope
328        was in vain)
329      - mask tke-variable in ggl90_init
330    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
331    o fix biharmonic diffusion on CS-grid.
332    o more obcs stuff
333      - added obcs_external_fields_load as an alternative to the EXF-pkg option
334        for reading boundary values. This routine is called from
335        obcs_prescribe_read
336      - updated obcs_check
337      - changed sponge layer relaxation parameter units for days to seconds
338      - turned off sponge layer by default
339      - changed argument list of OBCS_CALC to myTime+deltaTclock
340      - fixed about 35 bugs in obcs_external_fields_load
341    
342    checkpoint55c_post
343    o obcs stuff
344      - new runtime flags useOBCSprescribe, useOBCSbalance
345      - re-arranged obcs_calc
346      - moved exf_getobcs to obcs_prescibe_read
347        obcs_prescibe_read is called after ORLANSKI stuff
348        and independent of it (executable can contain all).
349      - updated obcs_check
350      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
351        These may be necessary only if tangential velocities are
352        prescribed at OB, not sure, needs testing.
353    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
354      which simplifies the calls and passes the ifc check-bounds test
355    
356    checkpoint55b_post
357    o add a 2D scalar, Z location, exchange_2 routine.
358    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
359      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
360      affects advect_cs results (for the wrong reason): update output.txt
361    o use a more standard discretization for biharmonic viscosity ;
362     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
363      affects results of dome set-up: update output.txt
364    o fix gad_advection.F (CubedSphere part), back to version 1.23
365    o fix bug in mom_vi_del2uv.F (CubedSphere part).
366    
367    checkpoint55a_post
368    o merged code to
369      * prescribe/read time-dependent open boundaries
370        (works in conjunction with exf, cal)
371      * sponge layer code for open boundaries
372      * each boundary N/S/E/W now has its own CPP option
373        (healthy for the adjoint)
374    
375    checkpoint55
376    o up-to-date adjoint of previous breaks
377      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
378      - global_ocean_ebm: adjoint still needs fix (TLM ok)
379      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
380      - carbon: * remove tr1-related adjoint verification
381                * add ptracer as control variable
382    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
383      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
384    
385    checkpoint54f_post
386    o in verification/carbin/ remove experiment related to
387      ALLOW_PASSIVE_TRACER (array tr1 etc)
388      code_ad/ input_ad/ results_ad
389    
390    o add two new packages
391      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
392        + subject to optimization (memory)
393      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
394        + subject to reordering (many GOTOs in the original code)
395        + so far opps is called for every (i,j) point, and then operates in
396          the vertical; one may want to reorder the scheme in order operate in
397          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
398          fields)
399    o overhaul of IO so that we now have flags for MDSIO and/or MNC
400      - all verification tests compile and run with linux_ia32_g77
401      - defaults are compatible with current input files--nothing
402        should change if you were not previously using MNC
403      - MNC output has been added in numerous places (eg. timeave)
404        but there are still a few writes not yet do-able with MNC
405        (this is in progress)
406      - flags now allow for either/or/both use of MDSIO and MNC and
407        documentation will soon follow
408      - numerous small formatting cleanups for ProTeX
409    o add version info (via BUILD_INFO.h) to MNC and stdout
410    
411    checkpoint54e_post
412    o add two new packages
413      - pp81 (Packanowski and Philander, 1981), Richardson number and
414        stratification dependent mixing
415      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
416      - these scheme operate in a similar manner as KPP (without ghat, of
417        course), however there is only one diffusivity that is used for both
418        temperature and salinity (and passive tracers)ç
419    o add offline package
420    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
421      provided by Stephanie Dutkiewicz
422    o genmake2: add ability to search for C compilers and cleanup test output
423      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
424    
425    checkpoint54d_post
426    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
427    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
428      leading to additional shift by 5 days each year of integration
429       (i.e. leading to considerable offset over the years)
430    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
431    o start with no AB and no initial filtering (staggerTimeStep):
432      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
433    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
434      (external loading & cpl import/export stay in forward_step.F)
435    o update coupling interface to work with new staggerTimeStep
436    o change MDSIO ptracers_pickup.
437    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
438    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
439    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
440    
441    checkpoint54c_post
442    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
443      this affects (truncation error) output.txt of test-exp:
444       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
445    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
446    o change Qnet to always be the net heat flux, (+upward).
447      affects (truncation error) output of natl_box exp.: updated
448    o define the max number of passive tracers in PTRACERS_SIZE.h
449    o start to test mnc routinely in exp0
450    o add sea-ice loading (sIceLoad) as a new forcing field.
451    
452    checkpoint54b_post
453    o add testreport "-j JOBS" option for parallel builds (tested and pretty
454       impressive on Altix and Opteron systems)
455    o diagnostics can now write NetCDF files through the mnc package
456    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
457    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
458    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
459      affects (truncation error) output of lab_sea & natl_box exp.: updated
460    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
461    
462    checkpoint54a_post
463    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
464    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
465    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
466    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
467      + internal_wave (shift in writing cg2d_ini_res)
468    checkpoint54a_pre
469    
470    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
471      - modified verification/lab_sea and natl_box_adjoint accordingly
472    
473    checkpoint54
474    checkpoint53g_post
475    o prepare splitting of thermodynamics: store convect.counter in common block
476    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
477      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
478    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
479    o new parameter "nShapS": allow to treat differently S from T (nShapT)
480    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
481    o restore adjointability
482    
483    checkpoint53f_post
484    o modifications that affect AIM experiment results (update output.txt):
485      - no advection of S at top interface Nr (pkg/generic_advdiff)
486      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
487    o AIM pkg:
488      - include stability function into surf.Flux derivative relative to Tsurf
489      - calculate clear-sky radiation & surface temp. change (for diagnostics)
490    
491    checkpoint53e_post
492    o merged cylindrical coord configuration
493    o added rotating_tank experiment
494    checkpoint53e_pre
495    
496    checkpoint53d_post
497    o faulks upgraded: re-generate output.txt that have changed:
498       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
499    o Added Bryan and Lewis, 1979, vertical diffusivity profile
500    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
501    o added Sadourny discretization of Coriolis
502      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
503      - re-enabled use of omega3 (useAbsVorticity)
504    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
505      vector-invariant equations
506      - note: does *NOT* yet use same variable visc. for no-slip BC's.
507    o recoded the lateral boundary conditions for non-hydrostatic w, this time
508      hopefully without new bugs
509      - still to do: biharmonic friction for non-hydrostatic w
510    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
511    o regenerated output for global_ocean_ebm (using -ieee)
512    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
513      of mom_common/
514      - simple re-arrangement of instructions within computing loop
515    checkpoint53d_pre
516    
517    checkpoint53c_post
518    o new version of coupler for AIM+thSIce and Ocean models
519     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
520     - land: change Evaporation of snow
521     - aim with thSIce: fix bug in snow-precip.
522    o changes to calc_gw.F
523     - bug fix for w^2 term near the bottom boundary
524     - (hopefully) improve the lateral slip boundary condtions for use with
525        partial/looped cells
526      - because the bug fix changes two verification experiments anyway (exp5
527        and plume on slope), change the lateral boundary condition from half slip
528        to the value of no_slip_sides
529    o ebm package wasnt quite up to the parallel task. Fixed that.
530    o Adjoint of EBM package + verification
531      * TLM OK
532      * ADM not sufficient accuracy yet (needs further testing)
533    
534    checkpoint53b_post
535    o Commiting new energy balance model to repository
536      * package is pkg/ebm
537      * verif. is verification/global_ocean_ebm
538      * references are in ebm_driver.F
539    C      * X. Wang, P. Stone and J. Marotzke, 1999:
540    C        Global thermohaline circulation. Part I:
541    C        Sensitivity to atmospheric moisture transport.
542    C        J. Climate 12(1), 71-82
543    C      * X. Wang, P. Stone and J. Marotzke, 1999:
544    C        Global thermohaline circulation. Part II:
545    C        Sensitivity with interactive transport.
546    C        J. Climate 12(1), 83-91
547    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
548    C        Destabilization of the thermohaline circulation
549    C        by atmospheric eddy transports.
550    C        J. Climate 7(12), 1870-1882
551    o Will need long integration testing.
552    checkpoint53b_pre
553    
554    o created pkg/mom_common in preparation for variable viscosity code
555    o renamed and split ini_mnc_io
556    o pkg/land: only liquid water can diffuse or run-off
557    o AIM using land: soil wetness availability account for snow
558    o added printMapIncludesZeros to EEPARMS namelist
559    
560    checkpoint53a_post
561    o restore TAMC compatiility for exf_constants.h
562      (no usage of _d in .h)
563    o Additional storing in KPP in an attempt to fix
564      TAMC problem with adjoint of KPP code.
565      (no success...)
566      Identical code works fine with TAF.
567    o Fixed verification/natl_box_adjoint experiments.
568      Initial conditions for Experiments 4 and 5 are now
569      set to "SEAICE_initialHEFF=0", which is more reasonable,
570      and hence gives results closer to that of Experiment 2.
571      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
572    
573    checkpoint53
574    o stable checkpoint with up to date adjoint
575      TLM tests only run for 1st grdchk at the moment. Its unclear if
576      this is a code problem or a problem with resetting code for g_
577      variables that is being autogenerated wrong.
578      Otherwise:
579       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
580       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
581         are both still in chaos following their security messes.
582    
583    checkpoint52n_post
584    o various build (mostly genmake2) changes including:
585      - ability to build/run more easily within Cygwin and MacOS X
586      - more complicated Makefiles with a stronger dependence on Gnu Make
587    o pkg/seaice modifications
588      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
589        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
590        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
591      - changed proxy for geostrophic velocity and updated
592        verification/lab_sea/results/* accordingly
593      - removed ADI dynamic solver from pkg/seaice
594      - replaced all occurrences of 1/CSTICE or 1/CSUICE
595        they caused a segmentation fault under certain circumstances
596      - removed unused field WATR
597    o bug fix in exf-package:
598      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
599         now reflect that.
600    o small fixes in the cal-package:
601      - set reference date to first of January for the 'model'-calendar
602      - failing of cal_CheckDate in cal_FullDate now actually results in a
603        warning
604    o small modifications in exf-package to increase flexibility:
605      - change climtempfreeze from a constant to a runtime parameter that
606        is specified in data.exf_clim (default = -1.9)
607      - introduce runtime parameter windstressmax (default = 2.0) that is
608        specified in data.exf
609    o fix in pkg/thsice:
610      - update Evap (Tsf changes) to be consistent with Latent heat flux
611      - maintain snow precipitation unchanged (even if Tsf >=0).
612     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
613    
614    checkpoint52m_post
615    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
616      this does not change any of the results, because myIter=0 in swfrac always
617      lead to jwtype=2 (the default anyway), but the call makes little sense
618      as a default
619    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
620    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
621      atmospheric model (AIM) to use it ; add a "slab ocean" component.
622    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
623    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
624    o extending useSingleCpuIO option to work with new exch2 I/O format
625      - old-style, missing-tile I/O is still accessible by defining CPP
626        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
627    o monitor package can write to NetCDF files and/or STDOUT
628    o fix re-definition bug in MNC_GRID_INIT_ALL()
629    o doc/api_reference added
630      - a framework for building an API Reference Manual using all
631        the "protex" comments embedded in the code
632      - see pkg/generic_advdiff, pkg/mnc for examples
633    o MNC:
634      - make myThid the last argument for all subroutines
635      - new default for the grid files: NO halos
636      - add useMNC and other run-time flags
637      - separate per-file-group handling of the unlimited dimension
638      - early initialization of MNC w/ flags read at the eeboot stage
639        and lookup tables set in initialize_fixed
640      - write all MNC output to a freshly-created directory
641    o thermodynamics sea-ice (thsice) is now tested with testreport.
642    o test exp. advect_cs: use the standard cs32 grid ; update output.
643    o Added functionality to grdchk:
644      pick global i,j,k position (or nearest wet) where to perform check.
645    
646    checkpoint52l_post
647    o new land formulation:
648      a) use ground enthalpy as prognostic variable to ensure exact
649         energy conservation.
650      b) account for water temperature and for latent heat of freezing
651         in all processes (rain, run-off, ground storage)
652      c) compute surface and ground temperature implicitly.
653    o aim_v23 modification for new land model:
654      a) Treat separately land / ocean / sea-ice surface fluxes
655         to allow implicit computation of land & sea-ice surface temp.
656      b) add snow precipitation.
657    checkpoint52l_pre
658    
659    o fix problem (when 1 tile is empty) in min/max monitor.
660    o fix bug in timeAve (u,vZetatave in common block)
661    o no restoring terms under ice for pkg/seaice
662    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
663    o bug fix for pkg/seaice pickups
664    o change MNC call locations and add coordinate attributes
665    o mask vorticity at the corner ; affects global_ocean.cs output
666    o fix ini_curvilinear_grid ; test CS experiments with mpi
667    o aim.5l_cs: modify sea-ice fraction input file ; update output
668    o exf: Adding simple range check routine for exf fields after read
669    
670    checkpoint52k_post
671    o removed top-level directory "diags"
672      - we migrated these functions to pkg/timeave a long time ago
673    o fixed bug introduced in pkg/monitor
674    o accuracy ctrlprec = 32 insuffient for gradient checks using
675      averaged fields (I/O via cost_averages)
676      -> use ctrl.h in active_file*.F to control I/O precision.
677    o paramter list of CALL ADTHE_MAIN_LOOP
678    o added initial do_the_model_io to ecco
679    o set all ...Freq to zero after cost_final
680      taveFreq, dumpFreq, pChkptFreq
681    o MAIN and ECCO differentiability restored
682    
683    checkpoint52j_post
684    o fix nchklev in tamc.h for global_ocean...
685    o Bringing flow and store directives up-to-date
686    o Really weird thing!
687      call do_the_model_io from the_main_loop with parameters
688      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
689      TAF places a faulty re-call of initialise_varia
690      after cost_final call which should not be there!
691    checkpoint52j_pre
692    
693    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
694      error messages
695    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
696    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
697      debug output
698    o modfied mdsio_writefield.F to handle non-global files under exch2
699    o update AIM Cubed-Sphere exp (aim.5l_cs):
700      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
701    o update AIM Equatorial Channel exp:
702      use standard aim_v23 pkg and change the SST fields to be more realistic.
703    o globalFile now works with exch2
704    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
705      mon_vort3.F to make exch2 friendly with >1 tile per cube face
706    o limit timeave output for hi-res integrations
707    
708    checkpoint52i_post
709    o removed CPP_EEOPTIONS.h from verification/*/code
710    o updated the tiling for global_ocean_pressure
711    checkpoint52i_pre
712    
713    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
714      the old pkg/aim).
715    
716    checkpoint52h_pre
717    o shortened offending lines in exch2_send_rx?.template
718    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
719    o genmake2: add build & execute test for NetCDF code
720    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
721      old grid files, moved CPP_EEMACROS.h to pkg/exch2
722    o added useSingleCPUIO flag to monitor.F and mon_out.F
723    o added temporary hack for sea-ice dynamics on the cube:
724      metric terms are ignored and it is assumed that
725      there is no sea-ice on cube faces 1, 2, 4, and 5.
726    
727    checkpoint52f_post
728    o added exch2 cube routines to pkg/exch2
729    o modified hs94.cs-32x32x5 to use it
730    o added new grid files to hs94.cs-32x32x5
731    checkpoint52f_pre
732    
733    checkpoint52e_post
734    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
735      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
736    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
737      to work with implicit vertical advection and AB ;
738    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
739    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
740     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
741    checkpoint52e_pre
742    
743    o fix bug in impldiff when Nr=1 or Nr=2.
744    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
745    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
746    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
747      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
748    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
749    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
750    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
751    
752    checkpoint52d_post
753    o re-tiled many expts to allow comparison in multi-processor mode
754      - updated output accordingly
755      - changed hs94.128x64x5 to use intial T from file rather than use the
756        random number generator
757    o add infrastructure in model routines for fizhi and gridalt packages
758    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
759    o changes to permit hi-res, cubed-sphere, configuration
760      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
761      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
762      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
763        of surface winds for the cube
764      (A verification experiment, based on global_ocean.cs32x15, but with
765       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
766       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
767       complete with example surface forcing files and matlab scripts to look
768       at the output and compare it with that of global_ocean.cs32x15.)
769    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
770       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
771       to conform to the common rule.
772    o check-in the first version of the coupler + interfaces for multi-components
773       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
774       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
775       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
776       - ocean and atmos. share the same horizontal grid (no interpolation).
777       - exchanges between component and coupler is done in forward_step
778    o new verification experiment, cpl_aim+ocn:
779       coupled ocean - AIM atmosphere on cs32 grid.
780    
781    checkpoint52d_pre
782    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
783    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
784    
785    checkpoint52c_post
786    o Fixing OPTIONS files for use of exf:
787      - ALLOW_ECCO not needed
788      - ECCO_CPPOPTIONS.h should not be included from
789        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
790        as has been the case in the past
791      - All cal/exf related options are currently set in
792        single header file. Should remain so until we
793        agree on a consistent new policy.
794    o Removed all CPP options for cal package.
795      cal has no more CPP options.
796    o modified STOREs in GAD_ADVECTION
797    o corrected key comp. for passkey
798    
799    checkpoint52b_post
800    o new version: "thsice" of thermodynamic sea-ice pkg:
801     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
802     - modify fluxes but do not change theta directly;
803     - light cleaning of bulk_force pkg (still needed with thsice).
804     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
805       + output_thsice.txt to test thsice & bulk_force pkgs.
806    o put back grid & coriolis monitor output.
807    checkpoint52b_pre
808    
809    o call "do_the_model_io" at the beginning (=> dump initial state)
810    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
811    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
812      (need info on NUMBER_OF_PTRACERS)
813    o missing PTRACERS headers in some routines
814    o default tamc.h in pkg/autodiff supposed to crash
815      to ensure proper customization
816    
817    checkpoint52a_post
818    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
819      - moved surfaceTendencyTice from pkg/seaice to main code
820      - subroutine FREEZE_SURFACE now limits only surface temperature
821        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
822        => new output.txt for global_ocean.cs32x15 & global_with_exf
823      - keep the old version of FREEZE for backward compatibility;
824        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
825      - corresponding modifs for TAF directives
826    o added surface flux output variables to TIMEAVE_STATVARS
827    o time-averaged output for pkg/ptracers
828    o fix problem with ECCO-related divided adjoint
829      snapshot file was missing some ad-variables,
830      but no warning issued by TAF
831    
832    checkpoint52a_pre
833    o some bug fixes for #undef REAL4_IS_SLOW
834    
835    checkpoint52 = ecco_c52_e35
836    o after testing adjoints of checkpoint51u_post
837    
838    checkpoint51u_post
839    o this is the post-merge tag of the ecco-branch
840      (needs another clean checkout and re-testing)
841    o various natl_box_adjoint configs and results
842      but no input fields
843    o obcs adjoint not yet merged!
844    o adding ECCO global 1x1 and 2x2 degree configs
845    o updated/extended some store directives for seaice
846    o pkg/ecco now containes ecco-specific part of cost function
847    o top level routines the_main_loop, forward_step
848      supersede those in model/src/
849      previous input data.cost now in data.ecco
850      (new namelist ecco_cost_nml)
851    o in ctrl/ cleaned some cross-dependencies and updated CPP options
852    
853    checkpoint51t_post
854    o this is the pre-merge tag of the ecco-branch
855    
856    checkpoint51s_post
857    o cleanup: removed various obsolete #define-s
858    o pkg/grdchk
859      - renamed 'ph-grd 3' to 'grad-res'
860      - merged from ecco-branch
861        (remaining bug fixes for obcs gradient checks)
862      - additional high-precision output for testreport
863        (grep for 'precision_grdchk_result')
864    
865    checkpoint51r_post
866    o cleaned up or removed CPP_OPTIONS.h files
867    o updated results for some of the tests to reflect the new
868      optfiles (-ieee: -O0 instead of -O3)
869    
870    checkpoint51q_post
871    o cd_code:
872      - moved cd_scheme.F -> cd_code_scheme.F
873      - separate read_checkpoint from cd_code_ini_vars.F
874      - separated cd_code part from write_checkpoint
875      - updated AD_SOURCE, generated .flow
876      - added CD_CODE_VARS.h to the_main_loop
877      - Moving cd_code specific store dir.s to pkg/cd_code
878    o ctrl package totally restructured
879      - pack/unpack now optional and decoupled from
880        xx_/adxx_ I/O
881      - ctrl_pack/unpack cleaned
882        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
883      - confined inclusion of AD_CONFIG.h to where necessary.
884    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
885    
886    checkpoint51p_post
887    o create initial cd_code package
888      - WARNING: the initialization of fields within packages
889        is broken because INI_FIELDS (where READ_CHECKPOINT is
890        called) is called *before* PACKAGES_INIT_VARIABLES.
891        This seems to be backwards since
892        1) its important to initially zero the entire field including
893           the "halo" region
894        2) zeroing needs to be done *before* reading pickup info
895           and the pickup call might or might not happen in any
896           particular run
897      - this needs an overhaul for R2
898    o cleanup verification/*/code/GMREDI_OPTIONS.h
899    o cleanup testreport
900    
901    checkpoint51o_post
902    o bringing AD-related verif's up to date with genmake2
903      - carbon/
904      - global_ocean.90x40x15/
905      - hs.94.1x64x5/
906      - (front_relax/ )
907    o (more) consistent directory structure for AD-related verif.'s
908    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
909    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
910    o bug fix in find_alpha.F for MDJWF:
911      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
912        change rho -> rho-rhoConst
913      - replace call find_rho to find_rhonum
914    o initialisation of rFlx extended to full array (required by TAF)
915      and shifted to thermodynamics
916    o removed PTRACERS.h in ptracers routine
917    o added surfacetendencyPtr to S/R parameter list pracers_forcing
918    o Correcting initialisations for fVerU, fVerV.
919    o helping TAF to recognize dependency on kUp for
920      fVerU, fVerV
921    o Replacing delZ by delR in pkg/ctrl/
922    checkpoint51o_pre
923    
924    o undid all of cp51 pending some cleanups and discussion
925    o added the [#include "AD_CONFIG.h"] statement to all files that need
926       it for adjoint/tl #defines
927     o re-worked the build logic in genmake2 to support AD_CONFIG.h
928     o removed tools/genmake since it no longer works
929    
930    checkpoint51n_post
931    o modifications to make FREEZE flux visible to pkg/kpp
932      - moved surfaceTendencyTice from pkg/seaice to main code
933      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
934      - subroutine FREEZE now limits only surface temperature
935        (this means new output.txt for global_ocean.90x40x15,
936         global_ocean.cs32x15, and global_with_exf)
937    o added surface flux output variables to TIMEAVE_STATVARS
938    
939    checkpoint51n_pre
940    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
941    o added [#include "AD_CONFIG.h"] to all files that use the following
942      defines:
943      - ALLOW_ADJOINT_RUN
944      - ALLOW_TANGENTLINEAR_RUN
945      - ALLOW_ECCO_OPTIMIZATION
946    
947    checkpoint51m_post
948    o incorporating changes to get TAMC/TAF working in genmake2
949      - added new TAMC/TAF targets to the Makefile
950      - various cleanups related to package handling
951      - these changes should have no impact on the forward model
952    
953    checkpoint51l_post
954    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
955     - faster algorithm for cal_addtime.F
956     - higher precision arithmetic, where needed
957     - pkg/exf *startdate variables changed from calendar date to
958       model integration time
959    
960    checkpoint51l_pre
961    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
962    o enable to apply restoring on S & T only in a latitude band.
963    o update output (external_forcing_surf modif. change truncation errors)
964       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
965    
966    checkpoint51k_post
967    o change default to: useNHMTerms=.FALSE.
968     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
969       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
970     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
971        exp1, ideal_2D_oce
972     - change data file of oceanic exp (leave the results unchanged for now)
973       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
974    o set gravitySign automatically according to the vertical coordinate used
975      (and change sign: back to "logical" value: +1 when R increases downward)
976    o added an include barrier to the default CPP_OPTIONS.h and
977      removed the #include "PACKAGES_CONFIG.h" from it
978    o fix a bug in mom_fluxform (from chk51j_post)
979    
980    checkpoint51j_post
981    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
982    o adjusted some flow directives (dynamics, thermodynamics)
983    o added cubed-sphere case to test cost function
984    o heckpoint_lev?_directives.h now include
985      pkg-specific directives, whenever those are enabled.
986    o Moving pkg-specific flow directives to corresponding pkg
987      Moving pkg-specific differentiation list to corresponding pkg
988      Moving pkg-specific checkpoint-lev storing to corresponding pkg
989      ---> conventions are
990           - pkg_ad.flow
991           - pkg_ad_diff.list
992           - pkg_ad_check_lev?_dir.h
993    
994    checkpoint51i_post
995    o merge of the branch-genmake2
996      - knowingly breaks the older genmake
997      - automatic generation of all ALLOW_${PKG_NAME} defines
998      - new testreport supersedes older testscript
999    o large number of package inclusion and header cleanups
1000    checkpoint51i_pre
1001    
1002    o new output for adjoin of global ocean vector invariant
1003    o fix for checkpoint of thermodynamic seaice and bulk_force
1004    o Steph gchem various cleanups
1005    
1006    checkpoint 51h_pre
1007    o fixed some single quotes
1008    o modify gchem pkg to be more versatile
1009    o modifications to clean up dic pkg
1010    o add pkg/cfc
1011    
1012    checkpoint51g_post
1013    o provide links for ARPACK and ADM*TLM
1014    o start removing verification/vero/
1015    o update AD-related stuff
1016      (in particular some IF-statements in model/src/ routines)
1017    o adding to verification/global_ocean.90x40x15/ adjoint of
1018      vector invariant setup
1019    
1020    checkpoint51f_post
1021    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1022    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1023      of tracer Green's fucntions for ocean inversion project.
1024    
1025    checkpoint51f_pre
1026    o Added on-the-fly spatial interpolation capability
1027        "USE_EXF_INTERPOLATION" to pkg/exf.
1028      - This is a temporary Cartesian-grid hack until
1029        the super-duper ESMF coupler becomes available.
1030      - See verification/global_with_exf/README for usage example.
1031      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1032        flags and modified pkg/seaice accordingly.
1033    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1034        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1035        non-local transport term.
1036    
1037    checkpoint51e_post
1038    o pkg/mom_vecinv:
1039      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1040      - add time-ave diagnostic of vorticity advection.
1041    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1042    o atmospheric geopotential: - include water vapor effect;
1043                                - use p^kappa in p* scaling.
1044    o land pkg: read initial state from files.
1045    o AIM : add stratospheric drag in the upper level
1046    
1047    checkpoint51d_post
1048    o change function ILNBLNK (=> last non-blank char.) to return zero
1049      (instead of the string length) when the string. char is empty
1050    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1051    o modif's to restore TAMC compatibility
1052      - avoid "_d" constructs in PARAMETER declarations
1053      - avoid interrupting lines by comment lines
1054    o Use cluster local disks for purely local I/O
1055      vs. globally visible disks needed for ctrl stuff
1056      (merged from ecco-branch)
1057      - new active_file_loc... and mdsio_..._loc routines
1058      - affected packages: autodiff, ctrl, grdchk, mdsio
1059    
1060    checkpoint51c_post
1061    o introducing integer flag debugLevel
1062      - debLevZero: suppress all output
1063      - debLevA: standard
1064      - debLevB: equivalent to current debugMode=.TRUE.
1065    o introducing pathname variable mdsioLocalDir for mdsio
1066      that can be specified at runtime
1067      (relevant for cluster I/O to local disk)
1068    `
1069    >>>checkpoint51b_post
1070    adjoint of ptracers
1071    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1072    o extended state in checkpoint_lev?, etc.
1073    o alternative ctrl/cost with tr1 or ptracer
1074    o new comlev1_bibj_ptracers
1075    o new ptracers.flow
1076    o made ptracers_forcing same as external_forcing_s
1077    o added verification for adjoint with ptracers
1078      - adm. grdchk fail so far
1079      - tlm. grdchk OK
1080      - checked tapelev/comlev recomputations: OK
1081    <<<checkpoint51b_pre
1082    
1083    checkpoint51a_post
1084    o added code for biogeochemistry package
1085      - new pkgs: dic, gchem
1086      - new subroutine in ptracers
1087    o modify code for biogeo packages
1088      - in model/src and pkg/ptracers
1089    
1090    checkpoint51
1091    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1092      - autodiff, ctrl, exf, grdchk, seaice
1093      kept separate packages
1094      - cost, ecco, obcs
1095    o updating verification/internal_wave, verification/lab_sea
1096      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1097    
1098    checkpoint50i_post
1099    o Preparing next differentiable checkpoint and sync
1100      of MAIN vs. ecco-branch
1101      - 1st step: this one is differentiable
1102      - 2nd step: next(! not this) checkpoint will have updated packages
1103                  from ecco-branch)
1104    
1105    checkpoint50h_post
1106    o new package "land": provide surface BC for AIM.
1107    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1108    o AIM: use true log-P extrapolation for near surface temp (= as in
1109        F.Molteni paper) ; update aim.5l_cs output.
1110    o New variable in PARM03 for more flexible pickups
1111    o somewhat cleaned package initialisation sequence for
1112      ctrl/ cost/ ecco/ in packages_... routines
1113    
1114    checkpoint50g_post
1115    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1116      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1117      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1118        made the default because of faster convergence than ADI
1119    
1120    checkpoint50f_post
1121    o exf totally restructured
1122      - replaced all exf_set_ routines by one generic exf_set_gen.F
1123        and made sure it's still differentiable
1124      - split exf_getffields.F into new exf_bulkformulae.F
1125      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1126      - updated adjoint/makefile and relevant verif. accordingly
1127    
1128    checkpoint50f_pre
1129     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1130          + change Evap over land. (update aim.5l_cs output)
1131     o added missing .cvsignores and made uniform across expts
1132     o changed configuration of tidal_basin_2d expt
1133     o added pkg/debug functions for tracing code in fatal crashes
1134     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1135     o new fn in pkg/monitor to stop model if solution grows too big
1136     o removed lots of single quotes from comments
1137    
1138    checkpoint50e_post
1139    o make KPP work with PTRACERS
1140     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1141       nearly a copy of kpp_transport_s
1142     - there is no analogue to SurfaceTendencyS, so I have to use
1143       gPtr(of the surface layer) instead
1144    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1145    checkpoint50e_pre
1146    
1147    checkpoint50d_post
1148    o change kpp output from multiple-record state files to single-record state
1149      files analogous to write_state.F
1150    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1151      analogous to the cg2d-related output.
1152    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1153      so that writing to internal file fn (with length 512) fails.
1154    checkpoint50d_pre
1155    
1156    checkpoint50c_post
1157    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1158    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1159    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1160    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1161    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1162    
1163    checkpoint50c_pre
1164    Merging from release1_p13:
1165    o bug fix for pkg/seaice dynamic solver
1166    o Added SEAICE_initialHEFF to pkg/seaice
1167    
1168    checkpoint50b_post
1169    o store u*,v* in gU,V instead of in guNm1,gvNm1
1170    o in order to put the momForcing out of the Adams-Bashforth:
1171      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1172      to timestep.F
1173    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1174    o re-generate output for highly sensitive test-exp:
1175       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1176    
1177    checkpoint50b_pre
1178    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1179    o corrected CPP option mismatch in exf_Bulk... functions for case
1180      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1181    
1182    checkpoint50a_post
1183    o Bug fix for merging between c50 and KPP.
1184      ikey was passed from thermodynamics to kpp_calc via
1185      common block rather than being recomputed in kpp_calc,
1186      in contradiction with new key itdkey.
1187      New key ikppkey created, and tamc.h headers updated.
1188    
1189    checkpoint50
1190    - 2nd step of merge with ecco-branch:
1191      merge changes in ecco-branch back into main trunk
1192    - bug fix in find_alpha
1193    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1194    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1195    - merged some sliced AD support routines
1196    
1197    checkpoint49
1198    merged from ecco-branch:
1199    o exf:
1200      - Enable initialisation of forcing fields to constant
1201        (runtime) values.
1202      - in exf_getffields.F
1203        Reduce i-/j-loop to interior domain, discarding overlaps.
1204        That also fixes wrong TAF-key computations for key_1, key_2
1205        with bulf formulae.
1206      - exf_init.F modify #ifdef for exf_init_evap
1207      - exf_getffieldrec.F, ctrl_getrec.F
1208        The following INT-usages are not safe:
1209          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1210          fldcount = int(fldsecs/fldperiod) + 1
1211        and were modified.
1212    o autodiff: checkpoint_lev...
1213      - updated storing for bulk formulae (some arrays were missing)
1214      - added state for seaice package
1215      - synchronized with main branch
1216    o DIVA:
1217      Modif.s in
1218      - the_main_loop.F
1219      - the_model_main.F
1220      and added cost_final_restore.F cost_final_store.F
1221      o With these changes, it is possible to fully separate
1222        the first forward run to compute the cost function (mdthe_main_loop)
1223        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1224        into separate model executions.
1225        This enables better tuning of DIVA to given queue sizes.
1226      o Loss of cost function value in consecutive DIVA runs is
1227        fixed by storing to 'costfinal' file.
1228      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1229        beginning/end of adjoint integration is accounted for.
1230      The current changes apply to TAF-1.4.26.
1231      TAF has one remaining bug, requiring one manual change
1232      (see MITgcm manual).
1233    o cal: synchronized between MAIN and ecco-branch
1234    
1235    checkpoint48i_post
1236    o Changes to restore differentiability of code w.r.t. previous tag
1237      (mostly adding new routines to make list and replacing
1238      pressure by totPhiHyd).
1239    o Updated and merged grdchk package
1240      - has both ADM and TLM checks
1241      - works for single- and multi-proc.
1242      - output cleaned
1243      - worked successfully for parallel DIVA
1244    o genmake:
1245      - Adding -platform=SP4
1246      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1247    o Modif. for DIVA:
1248      ctrl_unpack should not be called in intermediate DIVA interval.
1249      (similar thing would apply for active files such as
1250      tbar, sbar, psbar, which should not be reinitialised;
1251      only relevant for ecco-branch)
1252    
1253    checkpoint48h_post
1254    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1255    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1256    o Added SEAICE_initialHEFF to pkg/seaice
1257    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1258    
1259    checkpoint48g_post
1260    --- EOS:
1261    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1262      store total Potential in totPhyHyd for diagnostics & EOS.
1263    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1264    --- Pressure/geopotential gradient:
1265    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1266    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1267      ( changes results of global_ocean_pressure )
1268    o NLFS + z-coord.: add eta*Rho' contribution.
1269    o accurate phiHyd when using interface-W at the middle between 2 centers
1270     ( changes results of ideal_2D_oce )
1271    o includes r* 2nd term in potential gradient.
1272    
1273    checkpoint48f_post
1274    Merging from release1_p12:
1275    o Modifications for using pkg/exf with pkg/seaice
1276      - improved description of the various forcing configurations
1277      - added basic radiation bulk formulae to pkg/exf
1278      - units/sign fix for evap computation in exf_getffields.F
1279      - updated verification/global_with_exf/results/output.txt
1280    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1281      (SBO) core products, including oceanic mass, center-of-mass,
1282      angular, and bottom pressure (see pkg/sbo/README.sbo).
1283    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1284      to avoid negative values in shallow regions.
1285      - updated verification/natl_box/results/output.txt
1286      - updated verification/lab_sea/results/output.txt
1287    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1288    o Added useSingleCpuIO option (see PARAMS.h).
1289    o Updated useSingleCpuIO option in mdsio_writefield.F to
1290      work with multi-field files, e.g., for single-file pickup.
1291    o pkg/seaice:
1292      - bug fix in growth.F: QNET for no shortwave case
1293      - added HeffFile for specifying initial sea-ice thickness
1294      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1295    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1296      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1297    o pkg/seaice:
1298      - adjoint-friendly modifications
1299      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1300    
1301    checkpoint48e_post
1302    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1303    o dynamics: change definition of computational domain & adapt mom_fluxform
1304      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1305    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1306        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1307        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1308        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1309        inverted_barometer solid-body.cs-32x32x1
1310      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1311    
1312    checkpoint48d_post
1313    o in preparation for r*:
1314     a) use pre-computed gradient of hydrostatic potential:
1315        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1316     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1317        => affects results of glob_oce_pressure (different truncation error)  
1318      update output.txt of ideal_2D_oce & global_ocean_pressure
1319    
1320    checkpoint48d_pre
1321    o in preparation for r*:
1322      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1323      pass the 2 comp. of the grad. as arguments to momentum S/R.
1324      but for the moment, only used if it does not change the results.
1325    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1326    
1327    checkpoint48c_post
1328    Modifications in treatment of initial flux forcing controls
1329    to avoid extra storing of flux fields.
1330    
1331    checkpoint48c_pre
1332    o Added tidal_basin_2d experiment (currently 1D!)
1333    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1334    
1335    checkpoint48b_post
1336    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1337     (modification to pressure gradient not yet implemented)
1338    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1339      (for U & V) that are used for vertical advection of momentum.
1340    
1341    checkpoint48a_post
1342    o In preparation for r*, use temp. array to compute vertical transport
1343       in flux-form momentum pkg. => change results of few test-exp.
1344      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1345                        lab_sea, natl_box & plume_on_slope
1346    
1347    checkpoint48
1348    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1349    
1350    checkpoint47j_post
1351    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1352    o moved adexch from forward_step to addummy_in_stepping
1353    o added exch in ctrl_map_...
1354    o aveFreq.=0. at end of cost_final to avoid overwrite in
1355      reverse checkpointing loop
1356    o Yet more changes in gmredi:
1357      * adgmredi_calc_tensor
1358        avoiding all recomputation of gmredi_slope_limit
1359      * adgmredi_x/y/rtransport
1360        added flag for excessive storing to avoid recomp. of
1361        u/v/rtans, dTdx/y/z
1362        -> this is not really necessary and very memory-consuming
1363      * adgmredi_slope_psi:
1364        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1365      * gmredi_slope_limit
1366        re-activated full calculation of taperfct for case 'ac02'
1367    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1368    
1369    checkpoint47i_post
1370    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1371    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1372      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1373    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1374    o gmredi: fix few bugs.
1375    
1376    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1377    This will be a good checkpoint to plug into the ecco-branch.
1378    o few modif.'s to get latest version adjointed
1379      (mainly kick out code in ini_linear_phisurf)
1380    o modif's to run adjoint with exactConserv
1381    o case GM_BOLUS_ADVEC should be cleaned
1382      S/R gmredi_slope_psi should be cleaned
1383    o verification/carbon now has exactConserv=.TRUE.
1384    
1385    checkpoint47g_post
1386    o time-average AIM output: becomes independent from statvars time-average
1387      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1388    o After TAF bug fix:
1389      Tested adjoint of gmredi package.
1390      Tests were done with checkpoint47 rather than with latest
1391      checkpoint47f_post since the latter is broken for the adjoint
1392      verification/carbon/ contains both ADM and TLM gradient checks.
1393    Here they are, before they get changed/lost/stolen.
1394    Mostly modif.'s to fix numerical sensitivities.
1395    Gradient checks OK for
1396    - GM_taper_scheme:
1397      * clipping
1398      * ac02
1399      * linear
1400      * glw91
1401      * dm95
1402      * ldd97
1403    - GMREDI_OPTIONS:
1404      * GM_VISBECK_VARIABLE_K
1405      * GM_NON_UNITY_DIAGONAL
1406      * GM_EXTRA_DIAGONAL
1407      * GM_BOLUS_ADVEC
1408    in conjunction with data.gmredi parameters to be checked in
1409    in a few minutes under verification/carbon/code/
1410    
1411    checkpoint47f_post
1412    Merging from release1_p10:
1413    o modifications for using pkg/exf with pkg/seaice
1414      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1415        and SEAICE_EXTERNAL_FLUXES
1416      - pkg/exf CPP options EXF_READ_EVAP and
1417        EXF_NO_BULK_COMPUTATIONS
1418      - usage examples are Experiments 8 and 9 in
1419        verification/lab_sea/README
1420      - verification/lab_sea default experiment now uses
1421        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1422    
1423    checkpoint47e_post
1424    o created a tag prior to creating a branch
1425    
1426    checkpoint47d_post
1427    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1428      at the bottom boundary had an erroneous half slip boundary condition
1429    o added bottom drag and no slip boundary condition capabilities to
1430      oceanic pressure coordinates code
1431    o added new verification experiment global_ocean_pressure, this experiment is
1432      also described in the tutorial section of the manual
1433    checkpoint47d_pre
1434    
1435    checkpoint47c_post
1436    o Added a verification experiment for a global cubed-sphere ocean run
1437      -  verification/global_ocean.cubed32x32x30
1438      -  uses pkg/therm_seaice and pkg/bulk_forcing
1439    
1440    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1441    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1442      when using P-coordinate; only implemented for atmospheric config.
1443    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1444      NOTES: requires option NONLIN_FRSURF to be "#define".
1445    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1446    
1447    checkpoint47b_post
1448    Merging from release1_p9:
1449    o pkg/seaice
1450      - removed GOTO's and added taf directives
1451      - double precision constants to reduce the g77 (Linux)
1452        to F77 (SGI) differences reported in release1_p8
1453    o tools/genmake
1454      - added SGI options
1455    o verification/testscript
1456      - updated to that of checkpoint47a_post
1457    o verification/global_ocean.90x40x15/input/eedata
1458      - modified for SGI f77 compatibility
1459    o verification/lab_sea
1460      - added description of sea-ice model
1461      - added missing matlab routines
1462      - added test of thermodynamics parallelization
1463    
1464    checkpoint47a_post
1465    o new pkg: aim_v23
1466     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1467       for now, keep the same surface forcing as before.
1468     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1469     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1470     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1471    o add diagnostic of surface correction term in monitor output
1472    
1473    o bulk_force and therm_seaice
1474    - Two packages:  bulk_force (Bulk forcing)
1475      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1476    - Earlier integration from Stephaine Dutkiewicz
1477      and Patrick Heimbach.
1478    - Two ifdef statements for compile time,
1479       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1480    
1481    checkpoint47
1482    differentiable version of checkpoint46n_post
1483    o bug fix in quasihydrostaticterms
1484    o * "clean" adjoint code (in terms of extensive recomputations)
1485        can now be obtained for all GMREDI options (i.e. for
1486        - GM_VISBECK_VARIABLE_K
1487        - GM_NON_UNITY_DIAGONAL
1488        - GM_EXTRA_DIAGONAL
1489        - GM_BOLUS_ADVEC )
1490      * However, wrong gradient check problem remains unsolved.
1491      * New CPP options have been introduced for different
1492        tapering schemes
1493    o external_fields_load now part of differentiation list
1494    o pressure needs multiple storing;
1495      would be nice to have store_pressure at beginning or
1496      end of forward_step, e.g. by having phiHyd global (5-dim.)
1497      (NB: pressure is needed for certain cases in find_rho,
1498      which is also invoked through convective_adjustment).
1499    o recomputations in find_rho for cases
1500     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1501    o #define ATMOSPHERIC_LOADING should be differentiable
1502    o ini_forcing shifted to begining of initialise_varia
1503    o Incorporating QNVS line search routines into MITgcm
1504      (this is separate code, and therefore not under pkg)
1505      lsopt/, optim/
1506    o Updated verification/carbon/
1507      - #define GM_VISBECK_VARIABLE_K
1508      - GM_taper_scheme    = 'ldd97'    
1509    
1510    checkpoint46n_post
1511    Merging from release1_p8:
1512    o verification/natl_box:
1513      updating new external_fields_load routine
1514    o New package: pkg/seaice
1515      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1516      The sea-ice code is based on Hibler (1979-1980).
1517      Two sea-ice dynamic solvers, ADI and LSR, are included.
1518      In addition to computing prognostic sea-ice variables and diagnosing
1519      the forcing/external data fields that drive the ocean model,
1520      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1521      The implied surface heat flux is then stored in variable
1522      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1523      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1524      non-local transport term.  Because this call precedes model
1525      thermodynamics, temperature under sea-ice may not be "exactly" at
1526      the freezing point by the time theta is dumped or time-averaged.
1527      N.B.: fairly large differences in accuracy occur across
1528            different platforms/compilers; comparison between
1529            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1530            generated output gives:
1531       T           S           U           V
1532      C D M    c        m  s        m  s        m  s        m  s
1533      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1534      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1535      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1536    
1537      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1538    o GAD:
1539      - generated new common blocks to account for call of
1540        same gad routines with differing traceridentities
1541        (needed to modify tracerIdentity indices in GAD.h)
1542      - generated separate common blocks for case useCubedSphereExchange
1543        (Department of Futurology)
1544      - parameter lists to gmredi_?transport: added tracerIdentity
1545      - added new key indices to tamc.h
1546    o external_fields_load:
1547      - added this routine to TAF list
1548      - needed to make some common blocks global and additional storing
1549        along the same lines as exf package (checkpoint_lev?_directives.h)
1550    o exf:
1551      updated external forcing package
1552      - bug fixes carried over from ecco-branch
1553        (missing OBCS_OPTIONS.h in two routines)
1554      - enable easy to use "no forcing".
1555      - added exf I/O for atmospheric loading
1556      - added exf I/O for runoff data
1557      - transfered scaling between exf <-> MITgcm to exf namelist
1558    o Adding new verification experiment global_with_exf.
1559      This verification experiment is almost identical to the
1560      global_ocean.90x40x15 experiment, except that it uses
1561      the exf (and cal) package instead of the
1562      external_fields_load routine (cf README file).
1563    
1564    checkpoint46m_post
1565    o modified testscript to return -- when there are no lines of "%MON" output
1566    o added new flag "quasiHydrostatic" for QH mode
1567      and new routine quasihydrostaticterms()
1568    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1569      New routine: mom_u_coriolis_nh()
1570    o fixed sign of non-hydrostatic metric terms in u and v equations.
1571      Depend on correct sign of gravitySign.
1572    o added work.pc* to .cvsignore in aim directories using ifc
1573    o introduced flag for controllin non-hydrostatic metric terms
1574    o removed gravitySign from PARM04
1575    o switched to g77/ifc from pgf77 in aim experiments
1576    
1577    checkpoint46l_post
1578    o made convective adjustment work with pressure coordinates:
1579     - changed the direction of k-loop in convective_adjustment.F for the
1580       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1581     - adjusted the reference pressure k-index in convective_adjustment.F
1582     - adjusted the convection condition in convect.F (in analogy to
1583       calc_ivdc.F)
1584     - convective_adjustment no longer computes anything on the halos
1585     - removed the warnings about negative salinity from find_rho.F and
1586       find_alpha.F; instead the new routine look_for_neg_salinity, called
1587       at the beginning of find_rho, find_alpha, and find_beta, does a
1588       check of the entire slice, if CPP-option
1589       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1590    checkpoint46l_pre
1591    
1592    checkpoint46k_post
1593    o fixed the verification/global_ocean.90x40x15 experiment:
1594     - new bathymetry (the world according to A., JMC, and M.)
1595     - new initial fields and forcing fields (*.bin files)
1596     - new POLY3.COEFFS (for the next release one should switch to a full
1597       equation of state: JMD95P or MDJWF)
1598     - fixed several errors and redundancies in the data file
1599     - experiment uses looped cells
1600     - added matlab directory with diagnostic scripts for plotting of output
1601    
1602    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1603     - read AIM physics parameters from a file (data.aimphys)
1604     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1605    
1606    checkpoint46j_post
1607    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1608    o move wVel computation at the end of the time step, in S/R integr_continuity
1609    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1610    o update timeave pkg for wVel diagnostic.
1611    checkpoint46j_pre
1612    
1613    checkpoint46i_post
1614    o Clean up AIM package (and keep the results unchanged):
1615      include CPP_OPTION and use IMPLICT NONE in all routines ;
1616      declare all the variables _RL ; use _d 0 for all numerical constants.
1617      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1618    
1619    checkpoint46h_post
1620    o cleaned up the use of rhoNil and rhoConst.
1621      - rhoNil should only appear in the LINEAR equation of state, everywhere
1622        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1623        and the dynamical equations are all divided by rhoConst
1624    o introduced new parameter rhoConstFresh, a reference density of fresh
1625      water, to remove the fresh water flux's dependence on rhoNil. The default
1626      value is 999.8 kg/m^3
1627    o cleanup up external_forcing.F and external_forcing_surf.F
1628      - can now be used by both OCEANIC and OCEANICP
1629    checkpoint46h_pre
1630    
1631     Added code to convert surface volume flux (fresh water) into
1632     a mass flux when using P coordinates in the ocean (OCEANICP).
1633     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1634    
1635    checkpoint46g_post
1636    o Include a new diagnostic variable phiHydLow for the ocean model
1637      - in z-coordinates, it is the bottom pressure anomaly
1638      - in p-coordinates, it is the sea surface elevation
1639      - in both cases, these variable have global drift, reflecting the mass
1640        drift in z-coordinates and the volume drift in p-coordinates
1641      - included time averaging for phiHydLow, be aware of the drift!
1642    o depth-dependent computation of Bo_surf for pressure coordinates
1643      in the ocean (buoyancyRelation='OCEANICP')
1644      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1645        Theta, Salinity, and Pressure in the parameter list. This routine is
1646        presently contained in find_rho.F. This routine does not give the
1647        correct density for 'POLY3', which would be a z-dependent reference
1648        density.
1649    o cleaned up find_rho
1650      - removed obsolete 'eqn' from the parameter list.
1651    o added two new verification experiments: gop and goz
1652      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1653    checkpoint46g_pre
1654    
1655    checkpoint46f_post
1656    o Enable tangent linear (forward mode) gradient checks:
1657      - extended active file handling to g_... files
1658      - added TANGENT_SIMULATION to theSimulationMode
1659      - extended grdchk package accordingly
1660    o added tangent linear setup in verification/carbon/code_ftl
1661    o added adjoint setup in verification/front_relax/code_ad
1662    
1663    checkpoint46e_post
1664    o Added new equation of state -> MDJWF
1665      - EOS of McDougall et al., 2002, JAOT, submitted
1666      - caveat: the equation of state is only valid for a smaller (more
1667        realistic?) range of values than JMD95P/Z and UNESCO
1668      - added masks to the calculation of pressure in store_pressure
1669      - added more check values for density in check_eos (ini_eos.F), some of
1670        the old check values are out of the range of the MDJWF-eos, so don't
1671        expect perfect matches for those
1672    checkpoint46e_pre
1673    
1674    checkpoint46d_post
1675    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1676      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1677      case of pressure coordinates. eosType='JMD95Z' in
1678      combination with buoyancyRelation='OCEANICP' now causes an error.
1679    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1680      in find_alpha/beta.
1681    checkpoint46d_pre
1682    
1683    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1684      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1685    
1686    checkpoint46c_post
1687    o Changes necessary for ocean in p-coordinates
1688     -  Added new buoyancy relation = 'OCEANICP'
1689     -  Added new parameters = gravitySign (this used to be contained inside
1690        the factor dRdZ which I added when we first switched to R coordinates).
1691     X GM/Redi is not compatible (yet)
1692     X bottom drag and no-slip need to be debugged.
1693    checkpoint46c_pre
1694    
1695    checkpoint46b_post
1696    o Added new equation of state -> JMD95Z and JMD95P
1697      - EOS of Jackett and McDougall, 1995, JAOT
1698      - moved all EOS parameters into EOS.h
1699      - new routines ini_eos.F, store_pressure.F
1700    o Added UNESCO EOS, but not recommended because it requires
1701      in-situ temperature (see JMD95)
1702    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1703      unesco.f to be used with POLY3
1704    checkpoint46b_pre
1705    
1706    checkpoint46a_post
1707    o Added (atmospheric) pressure loading
1708      - new field in FFIELDS.h, etc...
1709      - new cpp flag ATMOSPHERIC_LOADING
1710    o Changed hFacC to _hFacC in calc_phi_hyd.F
1711    o Added SHORTWAVE_HEATING to some files for consistency
1712    checkpoint46a_pre
1713    
1714    checkpoint46
1715    further merges from release1_p5
1716    o new ctrl package
1717      - adopted from ECCO environment to enable optimization
1718      - added Eliassen Palm fluxes to controls
1719    o added Eliassen Palm flux controls to gradient check package
1720    o cost package
1721      - Compatible with new ctrl package
1722      - added Eliassen Palm cost hooks
1723      - modif's of existing cost functions
1724    o Adjoint-related bug fixes in kpp:
1725      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1726      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1727    o autodiff package
1728      - flow directives:
1729        + new for S/R do_the_model_io
1730        + enhanced for S/R checkpoint
1731        + new gmredi.flow
1732      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1733        disable adcommon.h/g_common.h by default.
1734      - fixed problem for adjoint of global_max
1735    o modified verification/carbon/
1736    o New setup for adjoint of global_ocean
1737    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1738    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1739    o incorporated hooks for sponge layer code (external_forcing.F)
1740    
1741    checkpoint45d_post
1742    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1743    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1744      (affects plume_on_slope "cg2d" output)
1745    o add new parameter deltaTfreesurf for free-surface time stepping
1746    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1747    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1748    o change phiMin in exp1 (to agree with documentation)
1749    o add new flags:
1750     - T,S forcing inside/outside Adams-Bashforth
1751     - turn off temp,salt advection and/or forcing
1752     - for each tracer, define internal flag for multiDimAdvection & A-B
1753    o monitor: change definition of KE to check conservation of Energy
1754    
1755    checkpoint45c_post
1756    o Removed f90 comments ("!")
1757    o Modified initialisations to enable exf package for MITgcm
1758      (without invoking ECCO_PACKAGE).
1759    o modifications to gradient check package (Martin Losch)
1760      - enable centered differences
1761      - modified format of standard output
1762    
1763    checkpoint45b_post
1764    o cleaned exchange calls in cg2d
1765    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1766    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1767      to configure barotropic setup (Martin Losch)
1768    o moved some initialisations within bi,bj loop in dynamics
1769      (TAF flow dependency)
1770    o in initialise_varia, moved call packages_init_variables
1771      before convective_adjustment_init
1772      (corresponding adjustment of TAF tape initialisation).
1773    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1774    
1775    checkpoint45a_post
1776    o compute Rho over the whole domain (extend iMin,jMin indices)
1777    o specific exchange for X-slice domain (case Ny=1)
1778    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1779    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1780    
1781    checkpoint44h_post = checkpoint45
1782    o Fix to restore differentiability:
1783      place at which packages_init_variables is called in
1784      initialise_varia is crucial for reverse control flow.
1785    o modifications in GMRedi to enable stable adjoint
1786      (corresponding modif's in thermodynamics, dynamics)
1787    o added missing hook for sponge layer code in external_forcing
1788    o modified test cost functions
1789    o storing in gad_advection (plus removal of write(0,*)!
1790    o missing headers TR1.h added in convective_adjustment routines
1791    o errorMessageUnit set non-equal zero in eeboot
1792      (conflict on some platforms, e.g. IBM SP3)
1793    o modified carbon verif.
1794    
1795    checkpoint44h_pre
1796    o vertical grid option: allow to put the Interface at the middle between
1797      2 cell-centers ; replace delZ in pkg/kpp by drF.
1798    o GM Advective form: Tracers are advected using the residual transport (=
1799      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1800    
1801    checkpoint44g_post
1802    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1803      results) ; ifdef missing in thermodynamics.F
1804    
1805    checkpoint44f_pre,checkpoint44f_post
1806    o added PTRACERS package
1807      This allows an arbitrary number of passive tracers to be integrated
1808      forward simultaneously with the dynamicaly model.
1809      + Implemented so far:
1810        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1811        - I/O and checkpointing
1812        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1813      + Not implemented so far:
1814        - KPP
1815        - OBCS
1816      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1817        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1818        line in data.pkg.
1819      + This package is disabled by default since it increases storage.
1820    
1821    
1822    o testscript: added -cleanup option
1823    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1824                 b) enable to filter 2D fields.
1825    
1826    checkpoint44e_pre,post
1827    o re-wrote convective adjustment to use pre-calculated weights
1828      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1829      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1830      Original calls to convect() still in place.
1831    
1832    chkpt44d_pre,post
1833    o added missing EXCLUDE_MONITOR flags
1834    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1835      (incompatible typ in MIN/MAX expressions caused problems
1836      on IBM SP3)
1837    o in genmake added variable MAKEDEPEND
1838      plus resetting for case SunOS
1839    o added timer_stats.c routine for IBM SP3
1840    o removed variables in dynamics
1841    !!! I forgot to create tag chkpt44d_pre !!!
1842    !!! But chkpt44d_pre = chkpt44c_post    !!!
1843    
1844    o real fresh water flux implemented with non-linear free-surface.
1845    
1846    chkpt44c_pre,post
1847    o few fix (mask in shap_s2, EmPmR in external_field_load,
1848      USE_NATURAL_BCS in solve_for_P);
1849    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1850    
1851    checkpoint44b_pre/_post
1852    o merge of relevant stuff from the ecco-branch:
1853      - genmake: removed $S64 overwrite for case SunOS
1854      - pkg/exf: update and corrections for field swapping and obcs
1855      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1856                  harmonized between ECCO and MITgcm
1857      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1858                      updated checkpointing_lev... lists for obcs
1859      - model/src: minor changes in forward_step, plot_field
1860                   added directive for divided adjoint in the_main_loop
1861      - pkg/mdsio: added mdsio_gl_slice
1862    
1863    o check parameters & config (chkpt44a_pre,post)
1864    o OBC and NonLin_FrSurf.
1865    
1866    checkpoint44
1867    o fix bug in mom_vi_del2uv
1868    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1869    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1870    o update AIM experiments (NCEP input files)
1871    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1872    o added some stuff for AD
1873    
1874    checkpoint43
1875    o added two new advection tests
1876    o added global 4x4 degree ocean test
1877    o added test of H&S94 with free surface on cube
1878    o some final mods for gradient check, adjoint,...
1879    
1880    checkpoint42
1881      Fixed AD-related problems:
1882    o Store directives up-to-date with re-arranged Adams-Bashforth
1883      (mainly thermodynamics.F)
1884    o New store directives for multi-dim. advection schemes
1885      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1886      * new common block and key passkey
1887      (mainly gad_advection.F)
1888    o Modified store directives for split of dynamics/thermodynamics
1889      for the case ALLOW_KPP
1890    o Cleaned argument list for timestep_tracer.F
1891    
1892    checkpoint41
1893    o re-formatted/added comments in prologues of key subroutines
1894      to work with protex
1895    
1896  checkpoint40  checkpoint40
1897  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
1898  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment

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