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revision 1.73 by heimbach, Thu May 30 22:52:25 2002 UTC revision 1.348 by jmc, Tue Sep 21 15:47:59 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o use a more standard discretization for biharmonic viscosity ;
6     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
7      affects results of dome set-up: update output.txt
8    o fix gad_advection.F (CubedSphere part), back to version 1.23
9    o fix bug in mom_vi_del2uv.F (CubedSphere part).
10    
11    checkpoint55a_post
12    o merged code to
13      * prescribe/read time-dependent open boundaries
14        (works in conjunction with exf, cal)
15      * sponge layer code for open boundaries
16      * each boundary N/S/E/W now has its own CPP option
17        (healthy for the adjoint)
18    
19    checkpoint55
20    o up-to-date adjoint of previous breaks
21      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
22      - global_ocean_ebm: adjoint still needs fix (TLM ok)
23      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
24      - carbon: * remove tr1-related adjoint verification
25                * add ptracer as control variable
26    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
27      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
28    
29    checkpoint54f_post
30    o in verification/carbin/ remove experiment related to
31      ALLOW_PASSIVE_TRACER (array tr1 etc)
32      code_ad/ input_ad/ results_ad
33    
34    o add two new packages
35      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
36        + subject to optimization (memory)
37      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
38        + subject to reordering (many GOTOs in the original code)
39        + so far opps is called for every (i,j) point, and then operates in
40          the vertical; one may want to reorder the scheme in order operate in
41          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
42          fields)
43    o overhaul of IO so that we now have flags for MDSIO and/or MNC
44      - all verification tests compile and run with linux_ia32_g77
45      - defaults are compatible with current input files--nothing
46        should change if you were not previously using MNC
47      - MNC output has been added in numerous places (eg. timeave)
48        but there are still a few writes not yet do-able with MNC
49        (this is in progress)
50      - flags now allow for either/or/both use of MDSIO and MNC and
51        documentation will soon follow
52      - numerous small formatting cleanups for ProTeX
53    o add version info (via BUILD_INFO.h) to MNC and stdout
54    
55    checkpoint54e_post
56    o add two new packages
57      - pp81 (Packanowski and Philander, 1981), Richardson number and
58        stratification dependent mixing
59      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
60      - these scheme operate in a similar manner as KPP (without ghat, of
61        course), however there is only one diffusivity that is used for both
62        temperature and salinity (and passive tracers)ç
63    o add offline package
64    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
65      provided by Stephanie Dutkiewicz
66    o genmake2: add ability to search for C compilers and cleanup test output
67      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
68    
69    checkpoint54d_post
70    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
71    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
72      leading to additional shift by 5 days each year of integration
73       (i.e. leading to considerable offset over the years)
74    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
75    o start with no AB and no initial filtering (staggerTimeStep):
76      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
77    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
78      (external loading & cpl import/export stay in forward_step.F)
79    o update coupling interface to work with new staggerTimeStep
80    o change MDSIO ptracers_pickup.
81    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
82    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
83    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
84    
85    checkpoint54c_post
86    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
87      this affects (truncation error) output.txt of test-exp:
88       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
89    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
90    o change Qnet to always be the net heat flux, (+upward).
91      affects (truncation error) output of natl_box exp.: updated
92    o define the max number of passive tracers in PTRACERS_SIZE.h
93    o start to test mnc routinely in exp0
94    o add sea-ice loading (sIceLoad) as a new forcing field.
95    
96    checkpoint54b_post
97    o add testreport "-j JOBS" option for parallel builds (tested and pretty
98       impressive on Altix and Opteron systems)
99    o diagnostics can now write NetCDF files through the mnc package
100    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
101    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
102    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
103      affects (truncation error) output of lab_sea & natl_box exp.: updated
104    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
105    
106    checkpoint54a_post
107    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
108    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
109    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
110    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
111      + internal_wave (shift in writing cg2d_ini_res)
112    checkpoint54a_pre
113    
114    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
115      - modified verification/lab_sea and natl_box_adjoint accordingly
116    
117    checkpoint54
118    checkpoint53g_post
119    o prepare splitting of thermodynamics: store convect.counter in common block
120    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
121      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
122    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
123    o new parameter "nShapS": allow to treat differently S from T (nShapT)
124    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
125    o restore adjointability
126    
127    checkpoint53f_post
128    o modifications that affect AIM experiment results (update output.txt):
129      - no advection of S at top interface Nr (pkg/generic_advdiff)
130      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
131    o AIM pkg:
132      - include stability function into surf.Flux derivative relative to Tsurf
133      - calculate clear-sky radiation & surface temp. change (for diagnostics)
134    
135    checkpoint53e_post
136    o merged cylindrical coord configuration
137    o added rotating_tank experiment
138    checkpoint53e_pre
139    
140    checkpoint53d_post
141    o faulks upgraded: re-generate output.txt that have changed:
142       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
143    o Added Bryan and Lewis, 1979, vertical diffusivity profile
144    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
145    o added Sadourny discretization of Coriolis
146      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
147      - re-enabled use of omega3 (useAbsVorticity)
148    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
149      vector-invariant equations
150      - note: does *NOT* yet use same variable visc. for no-slip BC's.
151    o recoded the lateral boundary conditions for non-hydrostatic w, this time
152      hopefully without new bugs
153      - still to do: biharmonic friction for non-hydrostatic w
154    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
155    o regenerated output for global_ocean_ebm (using -ieee)
156    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
157      of mom_common/
158      - simple re-arrangement of instructions within computing loop
159    checkpoint53d_pre
160    
161    checkpoint53c_post
162    o new version of coupler for AIM+thSIce and Ocean models
163     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
164     - land: change Evaporation of snow
165     - aim with thSIce: fix bug in snow-precip.
166    o changes to calc_gw.F
167     - bug fix for w^2 term near the bottom boundary
168     - (hopefully) improve the lateral slip boundary condtions for use with
169        partial/looped cells
170      - because the bug fix changes two verification experiments anyway (exp5
171        and plume on slope), change the lateral boundary condition from half slip
172        to the value of no_slip_sides
173    o ebm package wasnt quite up to the parallel task. Fixed that.
174    o Adjoint of EBM package + verification
175      * TLM OK
176      * ADM not sufficient accuracy yet (needs further testing)
177    
178    checkpoint53b_post
179    o Commiting new energy balance model to repository
180      * package is pkg/ebm
181      * verif. is verification/global_ocean_ebm
182      * references are in ebm_driver.F
183    C      * X. Wang, P. Stone and J. Marotzke, 1999:
184    C        Global thermohaline circulation. Part I:
185    C        Sensitivity to atmospheric moisture transport.
186    C        J. Climate 12(1), 71-82
187    C      * X. Wang, P. Stone and J. Marotzke, 1999:
188    C        Global thermohaline circulation. Part II:
189    C        Sensitivity with interactive transport.
190    C        J. Climate 12(1), 83-91
191    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
192    C        Destabilization of the thermohaline circulation
193    C        by atmospheric eddy transports.
194    C        J. Climate 7(12), 1870-1882
195    o Will need long integration testing.
196    checkpoint53b_pre
197    
198    o created pkg/mom_common in preparation for variable viscosity code
199    o renamed and split ini_mnc_io
200    o pkg/land: only liquid water can diffuse or run-off
201    o AIM using land: soil wetness availability account for snow
202    o added printMapIncludesZeros to EEPARMS namelist
203    
204    checkpoint53a_post
205    o restore TAMC compatiility for exf_constants.h
206      (no usage of _d in .h)
207    o Additional storing in KPP in an attempt to fix
208      TAMC problem with adjoint of KPP code.
209      (no success...)
210      Identical code works fine with TAF.
211    o Fixed verification/natl_box_adjoint experiments.
212      Initial conditions for Experiments 4 and 5 are now
213      set to "SEAICE_initialHEFF=0", which is more reasonable,
214      and hence gives results closer to that of Experiment 2.
215      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
216    
217    checkpoint53
218    o stable checkpoint with up to date adjoint
219      TLM tests only run for 1st grdchk at the moment. Its unclear if
220      this is a code problem or a problem with resetting code for g_
221      variables that is being autogenerated wrong.
222      Otherwise:
223       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
224       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
225         are both still in chaos following their security messes.
226    
227    checkpoint52n_post
228    o various build (mostly genmake2) changes including:
229      - ability to build/run more easily within Cygwin and MacOS X
230      - more complicated Makefiles with a stronger dependence on Gnu Make
231    o pkg/seaice modifications
232      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
233        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
234        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
235      - changed proxy for geostrophic velocity and updated
236        verification/lab_sea/results/* accordingly
237      - removed ADI dynamic solver from pkg/seaice
238      - replaced all occurrences of 1/CSTICE or 1/CSUICE
239        they caused a segmentation fault under certain circumstances
240      - removed unused field WATR
241    o bug fix in exf-package:
242      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
243         now reflect that.
244    o small fixes in the cal-package:
245      - set reference date to first of January for the 'model'-calendar
246      - failing of cal_CheckDate in cal_FullDate now actually results in a
247        warning
248    o small modifications in exf-package to increase flexibility:
249      - change climtempfreeze from a constant to a runtime parameter that
250        is specified in data.exf_clim (default = -1.9)
251      - introduce runtime parameter windstressmax (default = 2.0) that is
252        specified in data.exf
253    o fix in pkg/thsice:
254      - update Evap (Tsf changes) to be consistent with Latent heat flux
255      - maintain snow precipitation unchanged (even if Tsf >=0).
256     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
257    
258    checkpoint52m_post
259    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
260      this does not change any of the results, because myIter=0 in swfrac always
261      lead to jwtype=2 (the default anyway), but the call makes little sense
262      as a default
263    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
264    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
265      atmospheric model (AIM) to use it ; add a "slab ocean" component.
266    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
267    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
268    o extending useSingleCpuIO option to work with new exch2 I/O format
269      - old-style, missing-tile I/O is still accessible by defining CPP
270        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
271    o monitor package can write to NetCDF files and/or STDOUT
272    o fix re-definition bug in MNC_GRID_INIT_ALL()
273    o doc/api_reference added
274      - a framework for building an API Reference Manual using all
275        the "protex" comments embedded in the code
276      - see pkg/generic_advdiff, pkg/mnc for examples
277    o MNC:
278      - make myThid the last argument for all subroutines
279      - new default for the grid files: NO halos
280      - add useMNC and other run-time flags
281      - separate per-file-group handling of the unlimited dimension
282      - early initialization of MNC w/ flags read at the eeboot stage
283        and lookup tables set in initialize_fixed
284      - write all MNC output to a freshly-created directory
285    o thermodynamics sea-ice (thsice) is now tested with testreport.
286    o test exp. advect_cs: use the standard cs32 grid ; update output.
287    o Added functionality to grdchk:
288      pick global i,j,k position (or nearest wet) where to perform check.
289    
290    checkpoint52l_post
291    o new land formulation:
292      a) use ground enthalpy as prognostic variable to ensure exact
293         energy conservation.
294      b) account for water temperature and for latent heat of freezing
295         in all processes (rain, run-off, ground storage)
296      c) compute surface and ground temperature implicitly.
297    o aim_v23 modification for new land model:
298      a) Treat separately land / ocean / sea-ice surface fluxes
299         to allow implicit computation of land & sea-ice surface temp.
300      b) add snow precipitation.
301    checkpoint52l_pre
302    
303    o fix problem (when 1 tile is empty) in min/max monitor.
304    o fix bug in timeAve (u,vZetatave in common block)
305    o no restoring terms under ice for pkg/seaice
306    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
307    o bug fix for pkg/seaice pickups
308    o change MNC call locations and add coordinate attributes
309    o mask vorticity at the corner ; affects global_ocean.cs output
310    o fix ini_curvilinear_grid ; test CS experiments with mpi
311    o aim.5l_cs: modify sea-ice fraction input file ; update output
312    o exf: Adding simple range check routine for exf fields after read
313    
314    checkpoint52k_post
315    o removed top-level directory "diags"
316      - we migrated these functions to pkg/timeave a long time ago
317    o fixed bug introduced in pkg/monitor
318    o accuracy ctrlprec = 32 insuffient for gradient checks using
319      averaged fields (I/O via cost_averages)
320      -> use ctrl.h in active_file*.F to control I/O precision.
321    o paramter list of CALL ADTHE_MAIN_LOOP
322    o added initial do_the_model_io to ecco
323    o set all ...Freq to zero after cost_final
324      taveFreq, dumpFreq, pChkptFreq
325    o MAIN and ECCO differentiability restored
326    
327    checkpoint52j_post
328    o fix nchklev in tamc.h for global_ocean...
329    o Bringing flow and store directives up-to-date
330    o Really weird thing!
331      call do_the_model_io from the_main_loop with parameters
332      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
333      TAF places a faulty re-call of initialise_varia
334      after cost_final call which should not be there!
335    checkpoint52j_pre
336    
337    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
338      error messages
339    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
340    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
341      debug output
342    o modfied mdsio_writefield.F to handle non-global files under exch2
343    o update AIM Cubed-Sphere exp (aim.5l_cs):
344      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
345    o update AIM Equatorial Channel exp:
346      use standard aim_v23 pkg and change the SST fields to be more realistic.
347    o globalFile now works with exch2
348    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
349      mon_vort3.F to make exch2 friendly with >1 tile per cube face
350    o limit timeave output for hi-res integrations
351    
352    checkpoint52i_post
353    o removed CPP_EEOPTIONS.h from verification/*/code
354    o updated the tiling for global_ocean_pressure
355    checkpoint52i_pre
356    
357    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
358      the old pkg/aim).
359    
360    checkpoint52h_pre
361    o shortened offending lines in exch2_send_rx?.template
362    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
363    o genmake2: add build & execute test for NetCDF code
364    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
365      old grid files, moved CPP_EEMACROS.h to pkg/exch2
366    o added useSingleCPUIO flag to monitor.F and mon_out.F
367    o added temporary hack for sea-ice dynamics on the cube:
368      metric terms are ignored and it is assumed that
369      there is no sea-ice on cube faces 1, 2, 4, and 5.
370    
371    checkpoint52f_post
372    o added exch2 cube routines to pkg/exch2
373    o modified hs94.cs-32x32x5 to use it
374    o added new grid files to hs94.cs-32x32x5
375    checkpoint52f_pre
376    
377    checkpoint52e_post
378    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
379      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
380    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
381      to work with implicit vertical advection and AB ;
382    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
383    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
384     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
385    checkpoint52e_pre
386    
387    o fix bug in impldiff when Nr=1 or Nr=2.
388    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
389    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
390    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
391      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
392    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
393    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
394    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
395    
396    checkpoint52d_post
397    o re-tiled many expts to allow comparison in multi-processor mode
398      - updated output accordingly
399      - changed hs94.128x64x5 to use intial T from file rather than use the
400        random number generator
401    o add infrastructure in model routines for fizhi and gridalt packages
402    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
403    o changes to permit hi-res, cubed-sphere, configuration
404      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
405      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
406      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
407        of surface winds for the cube
408      (A verification experiment, based on global_ocean.cs32x15, but with
409       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
410       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
411       complete with example surface forcing files and matlab scripts to look
412       at the output and compare it with that of global_ocean.cs32x15.)
413    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
414       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
415       to conform to the common rule.
416    o check-in the first version of the coupler + interfaces for multi-components
417       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
418       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
419       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
420       - ocean and atmos. share the same horizontal grid (no interpolation).
421       - exchanges between component and coupler is done in forward_step
422    o new verification experiment, cpl_aim+ocn:
423       coupled ocean - AIM atmosphere on cs32 grid.
424    
425    checkpoint52d_pre
426    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
427    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
428    
429    checkpoint52c_post
430    o Fixing OPTIONS files for use of exf:
431      - ALLOW_ECCO not needed
432      - ECCO_CPPOPTIONS.h should not be included from
433        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
434        as has been the case in the past
435      - All cal/exf related options are currently set in
436        single header file. Should remain so until we
437        agree on a consistent new policy.
438    o Removed all CPP options for cal package.
439      cal has no more CPP options.
440    o modified STOREs in GAD_ADVECTION
441    o corrected key comp. for passkey
442    
443    checkpoint52b_post
444    o new version: "thsice" of thermodynamic sea-ice pkg:
445     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
446     - modify fluxes but do not change theta directly;
447     - light cleaning of bulk_force pkg (still needed with thsice).
448     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
449       + output_thsice.txt to test thsice & bulk_force pkgs.
450    o put back grid & coriolis monitor output.
451    checkpoint52b_pre
452    
453    o call "do_the_model_io" at the beginning (=> dump initial state)
454    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
455    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
456      (need info on NUMBER_OF_PTRACERS)
457    o missing PTRACERS headers in some routines
458    o default tamc.h in pkg/autodiff supposed to crash
459      to ensure proper customization
460    
461    checkpoint52a_post
462    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
463      - moved surfaceTendencyTice from pkg/seaice to main code
464      - subroutine FREEZE_SURFACE now limits only surface temperature
465        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
466        => new output.txt for global_ocean.cs32x15 & global_with_exf
467      - keep the old version of FREEZE for backward compatibility;
468        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
469      - corresponding modifs for TAF directives
470    o added surface flux output variables to TIMEAVE_STATVARS
471    o time-averaged output for pkg/ptracers
472    o fix problem with ECCO-related divided adjoint
473      snapshot file was missing some ad-variables,
474      but no warning issued by TAF
475    
476    checkpoint52a_pre
477    o some bug fixes for #undef REAL4_IS_SLOW
478    
479    checkpoint52 = ecco_c52_e35
480    o after testing adjoints of checkpoint51u_post
481    
482    checkpoint51u_post
483    o this is the post-merge tag of the ecco-branch
484      (needs another clean checkout and re-testing)
485    o various natl_box_adjoint configs and results
486      but no input fields
487    o obcs adjoint not yet merged!
488    o adding ECCO global 1x1 and 2x2 degree configs
489    o updated/extended some store directives for seaice
490    o pkg/ecco now containes ecco-specific part of cost function
491    o top level routines the_main_loop, forward_step
492      supersede those in model/src/
493      previous input data.cost now in data.ecco
494      (new namelist ecco_cost_nml)
495    o in ctrl/ cleaned some cross-dependencies and updated CPP options
496    
497    checkpoint51t_post
498    o this is the pre-merge tag of the ecco-branch
499    
500    checkpoint51s_post
501    o cleanup: removed various obsolete #define-s
502    o pkg/grdchk
503      - renamed 'ph-grd 3' to 'grad-res'
504      - merged from ecco-branch
505        (remaining bug fixes for obcs gradient checks)
506      - additional high-precision output for testreport
507        (grep for 'precision_grdchk_result')
508    
509    checkpoint51r_post
510    o cleaned up or removed CPP_OPTIONS.h files
511    o updated results for some of the tests to reflect the new
512      optfiles (-ieee: -O0 instead of -O3)
513    
514    checkpoint51q_post
515    o cd_code:
516      - moved cd_scheme.F -> cd_code_scheme.F
517      - separate read_checkpoint from cd_code_ini_vars.F
518      - separated cd_code part from write_checkpoint
519      - updated AD_SOURCE, generated .flow
520      - added CD_CODE_VARS.h to the_main_loop
521      - Moving cd_code specific store dir.s to pkg/cd_code
522    o ctrl package totally restructured
523      - pack/unpack now optional and decoupled from
524        xx_/adxx_ I/O
525      - ctrl_pack/unpack cleaned
526        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
527      - confined inclusion of AD_CONFIG.h to where necessary.
528    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
529    
530    checkpoint51p_post
531    o create initial cd_code package
532      - WARNING: the initialization of fields within packages
533        is broken because INI_FIELDS (where READ_CHECKPOINT is
534        called) is called *before* PACKAGES_INIT_VARIABLES.
535        This seems to be backwards since
536        1) its important to initially zero the entire field including
537           the "halo" region
538        2) zeroing needs to be done *before* reading pickup info
539           and the pickup call might or might not happen in any
540           particular run
541      - this needs an overhaul for R2
542    o cleanup verification/*/code/GMREDI_OPTIONS.h
543    o cleanup testreport
544    
545    checkpoint51o_post
546    o bringing AD-related verif's up to date with genmake2
547      - carbon/
548      - global_ocean.90x40x15/
549      - hs.94.1x64x5/
550      - (front_relax/ )
551    o (more) consistent directory structure for AD-related verif.'s
552    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
553    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
554    o bug fix in find_alpha.F for MDJWF:
555      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
556        change rho -> rho-rhoConst
557      - replace call find_rho to find_rhonum
558    o initialisation of rFlx extended to full array (required by TAF)
559      and shifted to thermodynamics
560    o removed PTRACERS.h in ptracers routine
561    o added surfacetendencyPtr to S/R parameter list pracers_forcing
562    o Correcting initialisations for fVerU, fVerV.
563    o helping TAF to recognize dependency on kUp for
564      fVerU, fVerV
565    o Replacing delZ by delR in pkg/ctrl/
566    checkpoint51o_pre
567    
568    o undid all of cp51 pending some cleanups and discussion
569    o added the [#include "AD_CONFIG.h"] statement to all files that need
570       it for adjoint/tl #defines
571     o re-worked the build logic in genmake2 to support AD_CONFIG.h
572     o removed tools/genmake since it no longer works
573    
574    checkpoint51n_post
575    o modifications to make FREEZE flux visible to pkg/kpp
576      - moved surfaceTendencyTice from pkg/seaice to main code
577      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
578      - subroutine FREEZE now limits only surface temperature
579        (this means new output.txt for global_ocean.90x40x15,
580         global_ocean.cs32x15, and global_with_exf)
581    o added surface flux output variables to TIMEAVE_STATVARS
582    
583    checkpoint51n_pre
584    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
585    o added [#include "AD_CONFIG.h"] to all files that use the following
586      defines:
587      - ALLOW_ADJOINT_RUN
588      - ALLOW_TANGENTLINEAR_RUN
589      - ALLOW_ECCO_OPTIMIZATION
590    
591    checkpoint51m_post
592    o incorporating changes to get TAMC/TAF working in genmake2
593      - added new TAMC/TAF targets to the Makefile
594      - various cleanups related to package handling
595      - these changes should have no impact on the forward model
596    
597    checkpoint51l_post
598    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
599     - faster algorithm for cal_addtime.F
600     - higher precision arithmetic, where needed
601     - pkg/exf *startdate variables changed from calendar date to
602       model integration time
603    
604    checkpoint51l_pre
605    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
606    o enable to apply restoring on S & T only in a latitude band.
607    o update output (external_forcing_surf modif. change truncation errors)
608       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
609    
610    checkpoint51k_post
611    o change default to: useNHMTerms=.FALSE.
612     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
613       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
614     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
615        exp1, ideal_2D_oce
616     - change data file of oceanic exp (leave the results unchanged for now)
617       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
618    o set gravitySign automatically according to the vertical coordinate used
619      (and change sign: back to "logical" value: +1 when R increases downward)
620    o added an include barrier to the default CPP_OPTIONS.h and
621      removed the #include "PACKAGES_CONFIG.h" from it
622    o fix a bug in mom_fluxform (from chk51j_post)
623    
624    checkpoint51j_post
625    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
626    o adjusted some flow directives (dynamics, thermodynamics)
627    o added cubed-sphere case to test cost function
628    o heckpoint_lev?_directives.h now include
629      pkg-specific directives, whenever those are enabled.
630    o Moving pkg-specific flow directives to corresponding pkg
631      Moving pkg-specific differentiation list to corresponding pkg
632      Moving pkg-specific checkpoint-lev storing to corresponding pkg
633      ---> conventions are
634           - pkg_ad.flow
635           - pkg_ad_diff.list
636           - pkg_ad_check_lev?_dir.h
637    
638    checkpoint51i_post
639    o merge of the branch-genmake2
640      - knowingly breaks the older genmake
641      - automatic generation of all ALLOW_${PKG_NAME} defines
642      - new testreport supersedes older testscript
643    o large number of package inclusion and header cleanups
644    checkpoint51i_pre
645    
646    o new output for adjoin of global ocean vector invariant
647    o fix for checkpoint of thermodynamic seaice and bulk_force
648    o Steph gchem various cleanups
649    
650    checkpoint 51h_pre
651    o fixed some single quotes
652    o modify gchem pkg to be more versatile
653    o modifications to clean up dic pkg
654    o add pkg/cfc
655    
656    checkpoint51g_post
657    o provide links for ARPACK and ADM*TLM
658    o start removing verification/vero/
659    o update AD-related stuff
660      (in particular some IF-statements in model/src/ routines)
661    o adding to verification/global_ocean.90x40x15/ adjoint of
662      vector invariant setup
663    
664    checkpoint51f_post
665    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
666    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
667      of tracer Green's fucntions for ocean inversion project.
668    
669    checkpoint51f_pre
670    o Added on-the-fly spatial interpolation capability
671        "USE_EXF_INTERPOLATION" to pkg/exf.
672      - This is a temporary Cartesian-grid hack until
673        the super-duper ESMF coupler becomes available.
674      - See verification/global_with_exf/README for usage example.
675      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
676        flags and modified pkg/seaice accordingly.
677    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
678        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
679        non-local transport term.
680    
681    checkpoint51e_post
682    o pkg/mom_vecinv:
683      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
684      - add time-ave diagnostic of vorticity advection.
685    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
686    o atmospheric geopotential: - include water vapor effect;
687                                - use p^kappa in p* scaling.
688    o land pkg: read initial state from files.
689    o AIM : add stratospheric drag in the upper level
690    
691    checkpoint51d_post
692    o change function ILNBLNK (=> last non-blank char.) to return zero
693      (instead of the string length) when the string. char is empty
694    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
695    o modif's to restore TAMC compatibility
696      - avoid "_d" constructs in PARAMETER declarations
697      - avoid interrupting lines by comment lines
698    o Use cluster local disks for purely local I/O
699      vs. globally visible disks needed for ctrl stuff
700      (merged from ecco-branch)
701      - new active_file_loc... and mdsio_..._loc routines
702      - affected packages: autodiff, ctrl, grdchk, mdsio
703    
704    checkpoint51c_post
705    o introducing integer flag debugLevel
706      - debLevZero: suppress all output
707      - debLevA: standard
708      - debLevB: equivalent to current debugMode=.TRUE.
709    o introducing pathname variable mdsioLocalDir for mdsio
710      that can be specified at runtime
711      (relevant for cluster I/O to local disk)
712    `
713    >>>checkpoint51b_post
714    adjoint of ptracers
715    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
716    o extended state in checkpoint_lev?, etc.
717    o alternative ctrl/cost with tr1 or ptracer
718    o new comlev1_bibj_ptracers
719    o new ptracers.flow
720    o made ptracers_forcing same as external_forcing_s
721    o added verification for adjoint with ptracers
722      - adm. grdchk fail so far
723      - tlm. grdchk OK
724      - checked tapelev/comlev recomputations: OK
725    <<<checkpoint51b_pre
726    
727    checkpoint51a_post
728    o added code for biogeochemistry package
729      - new pkgs: dic, gchem
730      - new subroutine in ptracers
731    o modify code for biogeo packages
732      - in model/src and pkg/ptracers
733    
734    checkpoint51
735    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
736      - autodiff, ctrl, exf, grdchk, seaice
737      kept separate packages
738      - cost, ecco, obcs
739    o updating verification/internal_wave, verification/lab_sea
740      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
741    
742    checkpoint50i_post
743    o Preparing next differentiable checkpoint and sync
744      of MAIN vs. ecco-branch
745      - 1st step: this one is differentiable
746      - 2nd step: next(! not this) checkpoint will have updated packages
747                  from ecco-branch)
748    
749    checkpoint50h_post
750    o new package "land": provide surface BC for AIM.
751    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
752    o AIM: use true log-P extrapolation for near surface temp (= as in
753        F.Molteni paper) ; update aim.5l_cs output.
754    o New variable in PARM03 for more flexible pickups
755    o somewhat cleaned package initialisation sequence for
756      ctrl/ cost/ ecco/ in packages_... routines
757    
758    checkpoint50g_post
759    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
760      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
761      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
762        made the default because of faster convergence than ADI
763    
764    checkpoint50f_post
765    o exf totally restructured
766      - replaced all exf_set_ routines by one generic exf_set_gen.F
767        and made sure it's still differentiable
768      - split exf_getffields.F into new exf_bulkformulae.F
769      - exf_inscal_/exf_outscal_ suffixes consistent with field names
770      - updated adjoint/makefile and relevant verif. accordingly
771    
772    checkpoint50f_pre
773     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
774          + change Evap over land. (update aim.5l_cs output)
775     o added missing .cvsignores and made uniform across expts
776     o changed configuration of tidal_basin_2d expt
777     o added pkg/debug functions for tracing code in fatal crashes
778     o tidied pkg/monitor to use MONITOR_OPTIONS.h
779     o new fn in pkg/monitor to stop model if solution grows too big
780     o removed lots of single quotes from comments
781    
782    checkpoint50e_post
783    o make KPP work with PTRACERS
784     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
785       nearly a copy of kpp_transport_s
786     - there is no analogue to SurfaceTendencyS, so I have to use
787       gPtr(of the surface layer) instead
788    o add a new platform SunFire+mpi (SunFire 15000) to genmake
789    checkpoint50e_pre
790    
791    checkpoint50d_post
792    o change kpp output from multiple-record state files to single-record state
793      files analogous to write_state.F
794    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
795      analogous to the cg2d-related output.
796    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
797      so that writing to internal file fn (with length 512) fails.
798    checkpoint50d_pre
799    
800    checkpoint50c_post
801    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
802    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
803    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
804    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
805    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
806    
807    checkpoint50c_pre
808    Merging from release1_p13:
809    o bug fix for pkg/seaice dynamic solver
810    o Added SEAICE_initialHEFF to pkg/seaice
811    
812    checkpoint50b_post
813    o store u*,v* in gU,V instead of in guNm1,gvNm1
814    o in order to put the momForcing out of the Adams-Bashforth:
815      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
816      to timestep.F
817    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
818    o re-generate output for highly sensitive test-exp:
819       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
820    
821    checkpoint50b_pre
822    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
823    o corrected CPP option mismatch in exf_Bulk... functions for case
824      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
825    
826    checkpoint50a_post
827    o Bug fix for merging between c50 and KPP.
828      ikey was passed from thermodynamics to kpp_calc via
829      common block rather than being recomputed in kpp_calc,
830      in contradiction with new key itdkey.
831      New key ikppkey created, and tamc.h headers updated.
832    
833    checkpoint50
834    - 2nd step of merge with ecco-branch:
835      merge changes in ecco-branch back into main trunk
836    - bug fix in find_alpha
837    - more storing in gmredi_calc_tensor.F, kpp_routines.F
838    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
839    - merged some sliced AD support routines
840    
841    checkpoint49
842    merged from ecco-branch:
843    o exf:
844      - Enable initialisation of forcing fields to constant
845        (runtime) values.
846      - in exf_getffields.F
847        Reduce i-/j-loop to interior domain, discarding overlaps.
848        That also fixes wrong TAF-key computations for key_1, key_2
849        with bulf formulae.
850      - exf_init.F modify #ifdef for exf_init_evap
851      - exf_getffieldrec.F, ctrl_getrec.F
852        The following INT-usages are not safe:
853          fldsecs  = int(fldsecs/fldperiod)*fldperiod
854          fldcount = int(fldsecs/fldperiod) + 1
855        and were modified.
856    o autodiff: checkpoint_lev...
857      - updated storing for bulk formulae (some arrays were missing)
858      - added state for seaice package
859      - synchronized with main branch
860    o DIVA:
861      Modif.s in
862      - the_main_loop.F
863      - the_model_main.F
864      and added cost_final_restore.F cost_final_store.F
865      o With these changes, it is possible to fully separate
866        the first forward run to compute the cost function (mdthe_main_loop)
867        and adjoint runs over individual DIVA intervals (adthe_main_loop)
868        into separate model executions.
869        This enables better tuning of DIVA to given queue sizes.
870      o Loss of cost function value in consecutive DIVA runs is
871        fixed by storing to 'costfinal' file.
872      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
873        beginning/end of adjoint integration is accounted for.
874      The current changes apply to TAF-1.4.26.
875      TAF has one remaining bug, requiring one manual change
876      (see MITgcm manual).
877    o cal: synchronized between MAIN and ecco-branch
878    
879    checkpoint48i_post
880    o Changes to restore differentiability of code w.r.t. previous tag
881      (mostly adding new routines to make list and replacing
882      pressure by totPhiHyd).
883    o Updated and merged grdchk package
884      - has both ADM and TLM checks
885      - works for single- and multi-proc.
886      - output cleaned
887      - worked successfully for parallel DIVA
888    o genmake:
889      - Adding -platform=SP4
890      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
891    o Modif. for DIVA:
892      ctrl_unpack should not be called in intermediate DIVA interval.
893      (similar thing would apply for active files such as
894      tbar, sbar, psbar, which should not be reinitialised;
895      only relevant for ecco-branch)
896    
897    checkpoint48h_post
898    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
899    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
900    o Added SEAICE_initialHEFF to pkg/seaice
901    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
902    
903    checkpoint48g_post
904    --- EOS:
905    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
906      store total Potential in totPhyHyd for diagnostics & EOS.
907    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
908    --- Pressure/geopotential gradient:
909    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
910    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
911      ( changes results of global_ocean_pressure )
912    o NLFS + z-coord.: add eta*Rho' contribution.
913    o accurate phiHyd when using interface-W at the middle between 2 centers
914     ( changes results of ideal_2D_oce )
915    o includes r* 2nd term in potential gradient.
916    
917    checkpoint48f_post
918    Merging from release1_p12:
919    o Modifications for using pkg/exf with pkg/seaice
920      - improved description of the various forcing configurations
921      - added basic radiation bulk formulae to pkg/exf
922      - units/sign fix for evap computation in exf_getffields.F
923      - updated verification/global_with_exf/results/output.txt
924    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
925      (SBO) core products, including oceanic mass, center-of-mass,
926      angular, and bottom pressure (see pkg/sbo/README.sbo).
927    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
928      to avoid negative values in shallow regions.
929      - updated verification/natl_box/results/output.txt
930      - updated verification/lab_sea/results/output.txt
931    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
932    o Added useSingleCpuIO option (see PARAMS.h).
933    o Updated useSingleCpuIO option in mdsio_writefield.F to
934      work with multi-field files, e.g., for single-file pickup.
935    o pkg/seaice:
936      - bug fix in growth.F: QNET for no shortwave case
937      - added HeffFile for specifying initial sea-ice thickness
938      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
939    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
940      kpp_transport_t.F, forward_step.F, and the_main_loop.F
941    o pkg/seaice:
942      - adjoint-friendly modifications
943      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
944    
945    checkpoint48e_post
946    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
947    o dynamics: change definition of computational domain & adapt mom_fluxform
948      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
949    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
950        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
951        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
952        global_ocean.90x40x15 global_with_exf global_ocean_pressure
953        inverted_barometer solid-body.cs-32x32x1
954      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
955    
956    checkpoint48d_post
957    o in preparation for r*:
958     a) use pre-computed gradient of hydrostatic potential:
959        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
960     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
961        => affects results of glob_oce_pressure (different truncation error)  
962      update output.txt of ideal_2D_oce & global_ocean_pressure
963    
964    checkpoint48d_pre
965    o in preparation for r*:
966      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
967      pass the 2 comp. of the grad. as arguments to momentum S/R.
968      but for the moment, only used if it does not change the results.
969    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
970    
971    checkpoint48c_post
972    Modifications in treatment of initial flux forcing controls
973    to avoid extra storing of flux fields.
974    
975    checkpoint48c_pre
976    o Added tidal_basin_2d experiment (currently 1D!)
977    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
978    
979    checkpoint48b_post
980    o r* coordinate added in #ifdef NONLIN_FRSURF block.
981     (modification to pressure gradient not yet implemented)
982    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
983      (for U & V) that are used for vertical advection of momentum.
984    
985    checkpoint48a_post
986    o In preparation for r*, use temp. array to compute vertical transport
987       in flux-form momentum pkg. => change results of few test-exp.
988      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
989                        lab_sea, natl_box & plume_on_slope
990    
991    checkpoint48
992    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
993    
994    checkpoint47j_post
995    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
996    o moved adexch from forward_step to addummy_in_stepping
997    o added exch in ctrl_map_...
998    o aveFreq.=0. at end of cost_final to avoid overwrite in
999      reverse checkpointing loop
1000    o Yet more changes in gmredi:
1001      * adgmredi_calc_tensor
1002        avoiding all recomputation of gmredi_slope_limit
1003      * adgmredi_x/y/rtransport
1004        added flag for excessive storing to avoid recomp. of
1005        u/v/rtans, dTdx/y/z
1006        -> this is not really necessary and very memory-consuming
1007      * adgmredi_slope_psi:
1008        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1009      * gmredi_slope_limit
1010        re-activated full calculation of taperfct for case 'ac02'
1011    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1012    
1013    checkpoint47i_post
1014    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1015    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1016      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1017    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1018    o gmredi: fix few bugs.
1019    
1020    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1021    This will be a good checkpoint to plug into the ecco-branch.
1022    o few modif.'s to get latest version adjointed
1023      (mainly kick out code in ini_linear_phisurf)
1024    o modif's to run adjoint with exactConserv
1025    o case GM_BOLUS_ADVEC should be cleaned
1026      S/R gmredi_slope_psi should be cleaned
1027    o verification/carbon now has exactConserv=.TRUE.
1028    
1029    checkpoint47g_post
1030    o time-average AIM output: becomes independent from statvars time-average
1031      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1032    o After TAF bug fix:
1033      Tested adjoint of gmredi package.
1034      Tests were done with checkpoint47 rather than with latest
1035      checkpoint47f_post since the latter is broken for the adjoint
1036      verification/carbon/ contains both ADM and TLM gradient checks.
1037    Here they are, before they get changed/lost/stolen.
1038    Mostly modif.'s to fix numerical sensitivities.
1039    Gradient checks OK for
1040    - GM_taper_scheme:
1041      * clipping
1042      * ac02
1043      * linear
1044      * glw91
1045      * dm95
1046      * ldd97
1047    - GMREDI_OPTIONS:
1048      * GM_VISBECK_VARIABLE_K
1049      * GM_NON_UNITY_DIAGONAL
1050      * GM_EXTRA_DIAGONAL
1051      * GM_BOLUS_ADVEC
1052    in conjunction with data.gmredi parameters to be checked in
1053    in a few minutes under verification/carbon/code/
1054    
1055    checkpoint47f_post
1056    Merging from release1_p10:
1057    o modifications for using pkg/exf with pkg/seaice
1058      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1059        and SEAICE_EXTERNAL_FLUXES
1060      - pkg/exf CPP options EXF_READ_EVAP and
1061        EXF_NO_BULK_COMPUTATIONS
1062      - usage examples are Experiments 8 and 9 in
1063        verification/lab_sea/README
1064      - verification/lab_sea default experiment now uses
1065        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1066    
1067    checkpoint47e_post
1068    o created a tag prior to creating a branch
1069    
1070    checkpoint47d_post
1071    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1072      at the bottom boundary had an erroneous half slip boundary condition
1073    o added bottom drag and no slip boundary condition capabilities to
1074      oceanic pressure coordinates code
1075    o added new verification experiment global_ocean_pressure, this experiment is
1076      also described in the tutorial section of the manual
1077    checkpoint47d_pre
1078    
1079    checkpoint47c_post
1080    o Added a verification experiment for a global cubed-sphere ocean run
1081      -  verification/global_ocean.cubed32x32x30
1082      -  uses pkg/therm_seaice and pkg/bulk_forcing
1083    
1084    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1085    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1086      when using P-coordinate; only implemented for atmospheric config.
1087    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1088      NOTES: requires option NONLIN_FRSURF to be "#define".
1089    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1090    
1091    checkpoint47b_post
1092    Merging from release1_p9:
1093    o pkg/seaice
1094      - removed GOTO's and added taf directives
1095      - double precision constants to reduce the g77 (Linux)
1096        to F77 (SGI) differences reported in release1_p8
1097    o tools/genmake
1098      - added SGI options
1099    o verification/testscript
1100      - updated to that of checkpoint47a_post
1101    o verification/global_ocean.90x40x15/input/eedata
1102      - modified for SGI f77 compatibility
1103    o verification/lab_sea
1104      - added description of sea-ice model
1105      - added missing matlab routines
1106      - added test of thermodynamics parallelization
1107    
1108    checkpoint47a_post
1109    o new pkg: aim_v23
1110     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1111       for now, keep the same surface forcing as before.
1112     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1113     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1114     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1115    o add diagnostic of surface correction term in monitor output
1116    
1117    o bulk_force and therm_seaice
1118    - Two packages:  bulk_force (Bulk forcing)
1119      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1120    - Earlier integration from Stephaine Dutkiewicz
1121      and Patrick Heimbach.
1122    - Two ifdef statements for compile time,
1123       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1124    
1125    checkpoint47
1126    differentiable version of checkpoint46n_post
1127    o bug fix in quasihydrostaticterms
1128    o * "clean" adjoint code (in terms of extensive recomputations)
1129        can now be obtained for all GMREDI options (i.e. for
1130        - GM_VISBECK_VARIABLE_K
1131        - GM_NON_UNITY_DIAGONAL
1132        - GM_EXTRA_DIAGONAL
1133        - GM_BOLUS_ADVEC )
1134      * However, wrong gradient check problem remains unsolved.
1135      * New CPP options have been introduced for different
1136        tapering schemes
1137    o external_fields_load now part of differentiation list
1138    o pressure needs multiple storing;
1139      would be nice to have store_pressure at beginning or
1140      end of forward_step, e.g. by having phiHyd global (5-dim.)
1141      (NB: pressure is needed for certain cases in find_rho,
1142      which is also invoked through convective_adjustment).
1143    o recomputations in find_rho for cases
1144     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1145    o #define ATMOSPHERIC_LOADING should be differentiable
1146    o ini_forcing shifted to begining of initialise_varia
1147    o Incorporating QNVS line search routines into MITgcm
1148      (this is separate code, and therefore not under pkg)
1149      lsopt/, optim/
1150    o Updated verification/carbon/
1151      - #define GM_VISBECK_VARIABLE_K
1152      - GM_taper_scheme    = 'ldd97'    
1153    
1154    checkpoint46n_post
1155    Merging from release1_p8:
1156    o verification/natl_box:
1157      updating new external_fields_load routine
1158    o New package: pkg/seaice
1159      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1160      The sea-ice code is based on Hibler (1979-1980).
1161      Two sea-ice dynamic solvers, ADI and LSR, are included.
1162      In addition to computing prognostic sea-ice variables and diagnosing
1163      the forcing/external data fields that drive the ocean model,
1164      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1165      The implied surface heat flux is then stored in variable
1166      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1167      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1168      non-local transport term.  Because this call precedes model
1169      thermodynamics, temperature under sea-ice may not be "exactly" at
1170      the freezing point by the time theta is dumped or time-averaged.
1171      N.B.: fairly large differences in accuracy occur across
1172            different platforms/compilers; comparison between
1173            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1174            generated output gives:
1175       T           S           U           V
1176      C D M    c        m  s        m  s        m  s        m  s
1177      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1178      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1179      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1180    
1181      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1182    o GAD:
1183      - generated new common blocks to account for call of
1184        same gad routines with differing traceridentities
1185        (needed to modify tracerIdentity indices in GAD.h)
1186      - generated separate common blocks for case useCubedSphereExchange
1187        (Department of Futurology)
1188      - parameter lists to gmredi_?transport: added tracerIdentity
1189      - added new key indices to tamc.h
1190    o external_fields_load:
1191      - added this routine to TAF list
1192      - needed to make some common blocks global and additional storing
1193        along the same lines as exf package (checkpoint_lev?_directives.h)
1194    o exf:
1195      updated external forcing package
1196      - bug fixes carried over from ecco-branch
1197        (missing OBCS_OPTIONS.h in two routines)
1198      - enable easy to use "no forcing".
1199      - added exf I/O for atmospheric loading
1200      - added exf I/O for runoff data
1201      - transfered scaling between exf <-> MITgcm to exf namelist
1202    o Adding new verification experiment global_with_exf.
1203      This verification experiment is almost identical to the
1204      global_ocean.90x40x15 experiment, except that it uses
1205      the exf (and cal) package instead of the
1206      external_fields_load routine (cf README file).
1207    
1208    checkpoint46m_post
1209    o modified testscript to return -- when there are no lines of "%MON" output
1210    o added new flag "quasiHydrostatic" for QH mode
1211      and new routine quasihydrostaticterms()
1212    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1213      New routine: mom_u_coriolis_nh()
1214    o fixed sign of non-hydrostatic metric terms in u and v equations.
1215      Depend on correct sign of gravitySign.
1216    o added work.pc* to .cvsignore in aim directories using ifc
1217    o introduced flag for controllin non-hydrostatic metric terms
1218    o removed gravitySign from PARM04
1219    o switched to g77/ifc from pgf77 in aim experiments
1220    
1221    checkpoint46l_post
1222    o made convective adjustment work with pressure coordinates:
1223     - changed the direction of k-loop in convective_adjustment.F for the
1224       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1225     - adjusted the reference pressure k-index in convective_adjustment.F
1226     - adjusted the convection condition in convect.F (in analogy to
1227       calc_ivdc.F)
1228     - convective_adjustment no longer computes anything on the halos
1229     - removed the warnings about negative salinity from find_rho.F and
1230       find_alpha.F; instead the new routine look_for_neg_salinity, called
1231       at the beginning of find_rho, find_alpha, and find_beta, does a
1232       check of the entire slice, if CPP-option
1233       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1234    checkpoint46l_pre
1235    
1236    checkpoint46k_post
1237    o fixed the verification/global_ocean.90x40x15 experiment:
1238     - new bathymetry (the world according to A., JMC, and M.)
1239     - new initial fields and forcing fields (*.bin files)
1240     - new POLY3.COEFFS (for the next release one should switch to a full
1241       equation of state: JMD95P or MDJWF)
1242     - fixed several errors and redundancies in the data file
1243     - experiment uses looped cells
1244     - added matlab directory with diagnostic scripts for plotting of output
1245    
1246    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1247     - read AIM physics parameters from a file (data.aimphys)
1248     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1249    
1250    checkpoint46j_post
1251    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1252    o move wVel computation at the end of the time step, in S/R integr_continuity
1253    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1254    o update timeave pkg for wVel diagnostic.
1255    checkpoint46j_pre
1256    
1257    checkpoint46i_post
1258    o Clean up AIM package (and keep the results unchanged):
1259      include CPP_OPTION and use IMPLICT NONE in all routines ;
1260      declare all the variables _RL ; use _d 0 for all numerical constants.
1261      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1262    
1263    checkpoint46h_post
1264    o cleaned up the use of rhoNil and rhoConst.
1265      - rhoNil should only appear in the LINEAR equation of state, everywhere
1266        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1267        and the dynamical equations are all divided by rhoConst
1268    o introduced new parameter rhoConstFresh, a reference density of fresh
1269      water, to remove the fresh water flux's dependence on rhoNil. The default
1270      value is 999.8 kg/m^3
1271    o cleanup up external_forcing.F and external_forcing_surf.F
1272      - can now be used by both OCEANIC and OCEANICP
1273    checkpoint46h_pre
1274    
1275     Added code to convert surface volume flux (fresh water) into
1276     a mass flux when using P coordinates in the ocean (OCEANICP).
1277     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1278    
1279    checkpoint46g_post
1280    o Include a new diagnostic variable phiHydLow for the ocean model
1281      - in z-coordinates, it is the bottom pressure anomaly
1282      - in p-coordinates, it is the sea surface elevation
1283      - in both cases, these variable have global drift, reflecting the mass
1284        drift in z-coordinates and the volume drift in p-coordinates
1285      - included time averaging for phiHydLow, be aware of the drift!
1286    o depth-dependent computation of Bo_surf for pressure coordinates
1287      in the ocean (buoyancyRelation='OCEANICP')
1288      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1289        Theta, Salinity, and Pressure in the parameter list. This routine is
1290        presently contained in find_rho.F. This routine does not give the
1291        correct density for 'POLY3', which would be a z-dependent reference
1292        density.
1293    o cleaned up find_rho
1294      - removed obsolete 'eqn' from the parameter list.
1295    o added two new verification experiments: gop and goz
1296      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1297    checkpoint46g_pre
1298    
1299    checkpoint46f_post
1300    o Enable tangent linear (forward mode) gradient checks:
1301      - extended active file handling to g_... files
1302      - added TANGENT_SIMULATION to theSimulationMode
1303      - extended grdchk package accordingly
1304    o added tangent linear setup in verification/carbon/code_ftl
1305    o added adjoint setup in verification/front_relax/code_ad
1306    
1307    checkpoint46e_post
1308    o Added new equation of state -> MDJWF
1309      - EOS of McDougall et al., 2002, JAOT, submitted
1310      - caveat: the equation of state is only valid for a smaller (more
1311        realistic?) range of values than JMD95P/Z and UNESCO
1312      - added masks to the calculation of pressure in store_pressure
1313      - added more check values for density in check_eos (ini_eos.F), some of
1314        the old check values are out of the range of the MDJWF-eos, so don't
1315        expect perfect matches for those
1316    checkpoint46e_pre
1317    
1318    checkpoint46d_post
1319    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1320      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1321      case of pressure coordinates. eosType='JMD95Z' in
1322      combination with buoyancyRelation='OCEANICP' now causes an error.
1323    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1324      in find_alpha/beta.
1325    checkpoint46d_pre
1326    
1327    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1328      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1329    
1330    checkpoint46c_post
1331    o Changes necessary for ocean in p-coordinates
1332     -  Added new buoyancy relation = 'OCEANICP'
1333     -  Added new parameters = gravitySign (this used to be contained inside
1334        the factor dRdZ which I added when we first switched to R coordinates).
1335     X GM/Redi is not compatible (yet)
1336     X bottom drag and no-slip need to be debugged.
1337    checkpoint46c_pre
1338    
1339    checkpoint46b_post
1340    o Added new equation of state -> JMD95Z and JMD95P
1341      - EOS of Jackett and McDougall, 1995, JAOT
1342      - moved all EOS parameters into EOS.h
1343      - new routines ini_eos.F, store_pressure.F
1344    o Added UNESCO EOS, but not recommended because it requires
1345      in-situ temperature (see JMD95)
1346    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1347      unesco.f to be used with POLY3
1348    checkpoint46b_pre
1349    
1350    checkpoint46a_post
1351    o Added (atmospheric) pressure loading
1352      - new field in FFIELDS.h, etc...
1353      - new cpp flag ATMOSPHERIC_LOADING
1354    o Changed hFacC to _hFacC in calc_phi_hyd.F
1355    o Added SHORTWAVE_HEATING to some files for consistency
1356    checkpoint46a_pre
1357    
1358    checkpoint46
1359    further merges from release1_p5
1360    o new ctrl package
1361      - adopted from ECCO environment to enable optimization
1362      - added Eliassen Palm fluxes to controls
1363    o added Eliassen Palm flux controls to gradient check package
1364    o cost package
1365      - Compatible with new ctrl package
1366      - added Eliassen Palm cost hooks
1367      - modif's of existing cost functions
1368    o Adjoint-related bug fixes in kpp:
1369      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1370      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1371    o autodiff package
1372      - flow directives:
1373        + new for S/R do_the_model_io
1374        + enhanced for S/R checkpoint
1375        + new gmredi.flow
1376      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1377        disable adcommon.h/g_common.h by default.
1378      - fixed problem for adjoint of global_max
1379    o modified verification/carbon/
1380    o New setup for adjoint of global_ocean
1381    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1382    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1383    o incorporated hooks for sponge layer code (external_forcing.F)
1384    
1385    checkpoint45d_post
1386    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1387    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1388      (affects plume_on_slope "cg2d" output)
1389    o add new parameter deltaTfreesurf for free-surface time stepping
1390    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1391    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1392    o change phiMin in exp1 (to agree with documentation)
1393    o add new flags:
1394     - T,S forcing inside/outside Adams-Bashforth
1395     - turn off temp,salt advection and/or forcing
1396     - for each tracer, define internal flag for multiDimAdvection & A-B
1397    o monitor: change definition of KE to check conservation of Energy
1398    
1399  checkpoint45c_post  checkpoint45c_post
1400  o Removed f90 comments ("!")  o Removed f90 comments ("!")

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