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revision 1.82 by mlosch, Mon Aug 19 14:21:30 2002 UTC revision 1.357 by mlosch, Mon Sep 27 09:01:16 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o GGL90 (Gaspar's TKE mixed layer)
7      - add horizontal diffusion of TKE, requires exchanges in
8        do_fields_blocking_exchanges, horizontal diffusivity is zero by
9        default. In OPA there is no horizontal diffusion of TKE but the
10        mixing coefficients are computed from a horizontal average of TKE of
11        6 points or so. I think that diffusion has a little more physical
12        justification.
13      - clean up ggl90_calc in the hope of reducing memory usage (this hope
14        was in vain)
15      - mask tke-variable in ggl90_init
16    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
17    o fix biharmonic diffusion on CS-grid.
18    o more obcs stuff
19      - added obcs_external_fields_load as an alternative to the EXF-pkg option
20        for reading boundary values. This routine is called from
21        obcs_prescribe_read
22      - updated obcs_check
23      - changed sponge layer relaxation parameter units for days to seconds
24      - turned off sponge layer by default
25    
26    checkpoint55c_post
27    o obcs stuff
28      - new runtime flags useOBCSprescribe, useOBCSbalance
29      - re-arranged obcs_calc
30      - moved exf_getobcs to obcs_prescibe_read
31        obcs_prescibe_read is called after ORLANSKI stuff
32        and independent of it (executable can contain all).
33      - updated obcs_check
34      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
35        These may be necessary only if tangential velocities are
36        prescribed at OB, not sure, needs testing.
37    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
38      which simplifies the calls and passes the ifc check-bounds test
39    
40    checkpoint55b_post
41    o add a 2D scalar, Z location, exchange_2 routine.
42    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
43      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
44      affects advect_cs results (for the wrong reason): update output.txt
45    o use a more standard discretization for biharmonic viscosity ;
46     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
47      affects results of dome set-up: update output.txt
48    o fix gad_advection.F (CubedSphere part), back to version 1.23
49    o fix bug in mom_vi_del2uv.F (CubedSphere part).
50    
51    checkpoint55a_post
52    o merged code to
53      * prescribe/read time-dependent open boundaries
54        (works in conjunction with exf, cal)
55      * sponge layer code for open boundaries
56      * each boundary N/S/E/W now has its own CPP option
57        (healthy for the adjoint)
58    
59    checkpoint55
60    o up-to-date adjoint of previous breaks
61      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
62      - global_ocean_ebm: adjoint still needs fix (TLM ok)
63      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
64      - carbon: * remove tr1-related adjoint verification
65                * add ptracer as control variable
66    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
67      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
68    
69    checkpoint54f_post
70    o in verification/carbin/ remove experiment related to
71      ALLOW_PASSIVE_TRACER (array tr1 etc)
72      code_ad/ input_ad/ results_ad
73    
74    o add two new packages
75      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
76        + subject to optimization (memory)
77      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
78        + subject to reordering (many GOTOs in the original code)
79        + so far opps is called for every (i,j) point, and then operates in
80          the vertical; one may want to reorder the scheme in order operate in
81          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
82          fields)
83    o overhaul of IO so that we now have flags for MDSIO and/or MNC
84      - all verification tests compile and run with linux_ia32_g77
85      - defaults are compatible with current input files--nothing
86        should change if you were not previously using MNC
87      - MNC output has been added in numerous places (eg. timeave)
88        but there are still a few writes not yet do-able with MNC
89        (this is in progress)
90      - flags now allow for either/or/both use of MDSIO and MNC and
91        documentation will soon follow
92      - numerous small formatting cleanups for ProTeX
93    o add version info (via BUILD_INFO.h) to MNC and stdout
94    
95    checkpoint54e_post
96    o add two new packages
97      - pp81 (Packanowski and Philander, 1981), Richardson number and
98        stratification dependent mixing
99      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
100      - these scheme operate in a similar manner as KPP (without ghat, of
101        course), however there is only one diffusivity that is used for both
102        temperature and salinity (and passive tracers)ç
103    o add offline package
104    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
105      provided by Stephanie Dutkiewicz
106    o genmake2: add ability to search for C compilers and cleanup test output
107      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
108    
109    checkpoint54d_post
110    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
111    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
112      leading to additional shift by 5 days each year of integration
113       (i.e. leading to considerable offset over the years)
114    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
115    o start with no AB and no initial filtering (staggerTimeStep):
116      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
117    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
118      (external loading & cpl import/export stay in forward_step.F)
119    o update coupling interface to work with new staggerTimeStep
120    o change MDSIO ptracers_pickup.
121    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
122    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
123    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
124    
125    checkpoint54c_post
126    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
127      this affects (truncation error) output.txt of test-exp:
128       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
129    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
130    o change Qnet to always be the net heat flux, (+upward).
131      affects (truncation error) output of natl_box exp.: updated
132    o define the max number of passive tracers in PTRACERS_SIZE.h
133    o start to test mnc routinely in exp0
134    o add sea-ice loading (sIceLoad) as a new forcing field.
135    
136    checkpoint54b_post
137    o add testreport "-j JOBS" option for parallel builds (tested and pretty
138       impressive on Altix and Opteron systems)
139    o diagnostics can now write NetCDF files through the mnc package
140    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
141    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
142    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
143      affects (truncation error) output of lab_sea & natl_box exp.: updated
144    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
145    
146    checkpoint54a_post
147    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
148    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
149    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
150    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
151      + internal_wave (shift in writing cg2d_ini_res)
152    checkpoint54a_pre
153    
154    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
155      - modified verification/lab_sea and natl_box_adjoint accordingly
156    
157    checkpoint54
158    checkpoint53g_post
159    o prepare splitting of thermodynamics: store convect.counter in common block
160    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
161      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
162    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
163    o new parameter "nShapS": allow to treat differently S from T (nShapT)
164    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
165    o restore adjointability
166    
167    checkpoint53f_post
168    o modifications that affect AIM experiment results (update output.txt):
169      - no advection of S at top interface Nr (pkg/generic_advdiff)
170      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
171    o AIM pkg:
172      - include stability function into surf.Flux derivative relative to Tsurf
173      - calculate clear-sky radiation & surface temp. change (for diagnostics)
174    
175    checkpoint53e_post
176    o merged cylindrical coord configuration
177    o added rotating_tank experiment
178    checkpoint53e_pre
179    
180    checkpoint53d_post
181    o faulks upgraded: re-generate output.txt that have changed:
182       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
183    o Added Bryan and Lewis, 1979, vertical diffusivity profile
184    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
185    o added Sadourny discretization of Coriolis
186      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
187      - re-enabled use of omega3 (useAbsVorticity)
188    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
189      vector-invariant equations
190      - note: does *NOT* yet use same variable visc. for no-slip BC's.
191    o recoded the lateral boundary conditions for non-hydrostatic w, this time
192      hopefully without new bugs
193      - still to do: biharmonic friction for non-hydrostatic w
194    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
195    o regenerated output for global_ocean_ebm (using -ieee)
196    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
197      of mom_common/
198      - simple re-arrangement of instructions within computing loop
199    checkpoint53d_pre
200    
201    checkpoint53c_post
202    o new version of coupler for AIM+thSIce and Ocean models
203     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
204     - land: change Evaporation of snow
205     - aim with thSIce: fix bug in snow-precip.
206    o changes to calc_gw.F
207     - bug fix for w^2 term near the bottom boundary
208     - (hopefully) improve the lateral slip boundary condtions for use with
209        partial/looped cells
210      - because the bug fix changes two verification experiments anyway (exp5
211        and plume on slope), change the lateral boundary condition from half slip
212        to the value of no_slip_sides
213    o ebm package wasnt quite up to the parallel task. Fixed that.
214    o Adjoint of EBM package + verification
215      * TLM OK
216      * ADM not sufficient accuracy yet (needs further testing)
217    
218    checkpoint53b_post
219    o Commiting new energy balance model to repository
220      * package is pkg/ebm
221      * verif. is verification/global_ocean_ebm
222      * references are in ebm_driver.F
223    C      * X. Wang, P. Stone and J. Marotzke, 1999:
224    C        Global thermohaline circulation. Part I:
225    C        Sensitivity to atmospheric moisture transport.
226    C        J. Climate 12(1), 71-82
227    C      * X. Wang, P. Stone and J. Marotzke, 1999:
228    C        Global thermohaline circulation. Part II:
229    C        Sensitivity with interactive transport.
230    C        J. Climate 12(1), 83-91
231    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
232    C        Destabilization of the thermohaline circulation
233    C        by atmospheric eddy transports.
234    C        J. Climate 7(12), 1870-1882
235    o Will need long integration testing.
236    checkpoint53b_pre
237    
238    o created pkg/mom_common in preparation for variable viscosity code
239    o renamed and split ini_mnc_io
240    o pkg/land: only liquid water can diffuse or run-off
241    o AIM using land: soil wetness availability account for snow
242    o added printMapIncludesZeros to EEPARMS namelist
243    
244    checkpoint53a_post
245    o restore TAMC compatiility for exf_constants.h
246      (no usage of _d in .h)
247    o Additional storing in KPP in an attempt to fix
248      TAMC problem with adjoint of KPP code.
249      (no success...)
250      Identical code works fine with TAF.
251    o Fixed verification/natl_box_adjoint experiments.
252      Initial conditions for Experiments 4 and 5 are now
253      set to "SEAICE_initialHEFF=0", which is more reasonable,
254      and hence gives results closer to that of Experiment 2.
255      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
256    
257    checkpoint53
258    o stable checkpoint with up to date adjoint
259      TLM tests only run for 1st grdchk at the moment. Its unclear if
260      this is a code problem or a problem with resetting code for g_
261      variables that is being autogenerated wrong.
262      Otherwise:
263       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
264       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
265         are both still in chaos following their security messes.
266    
267    checkpoint52n_post
268    o various build (mostly genmake2) changes including:
269      - ability to build/run more easily within Cygwin and MacOS X
270      - more complicated Makefiles with a stronger dependence on Gnu Make
271    o pkg/seaice modifications
272      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
273        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
274        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
275      - changed proxy for geostrophic velocity and updated
276        verification/lab_sea/results/* accordingly
277      - removed ADI dynamic solver from pkg/seaice
278      - replaced all occurrences of 1/CSTICE or 1/CSUICE
279        they caused a segmentation fault under certain circumstances
280      - removed unused field WATR
281    o bug fix in exf-package:
282      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
283         now reflect that.
284    o small fixes in the cal-package:
285      - set reference date to first of January for the 'model'-calendar
286      - failing of cal_CheckDate in cal_FullDate now actually results in a
287        warning
288    o small modifications in exf-package to increase flexibility:
289      - change climtempfreeze from a constant to a runtime parameter that
290        is specified in data.exf_clim (default = -1.9)
291      - introduce runtime parameter windstressmax (default = 2.0) that is
292        specified in data.exf
293    o fix in pkg/thsice:
294      - update Evap (Tsf changes) to be consistent with Latent heat flux
295      - maintain snow precipitation unchanged (even if Tsf >=0).
296     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
297    
298    checkpoint52m_post
299    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
300      this does not change any of the results, because myIter=0 in swfrac always
301      lead to jwtype=2 (the default anyway), but the call makes little sense
302      as a default
303    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
304    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
305      atmospheric model (AIM) to use it ; add a "slab ocean" component.
306    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
307    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
308    o extending useSingleCpuIO option to work with new exch2 I/O format
309      - old-style, missing-tile I/O is still accessible by defining CPP
310        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
311    o monitor package can write to NetCDF files and/or STDOUT
312    o fix re-definition bug in MNC_GRID_INIT_ALL()
313    o doc/api_reference added
314      - a framework for building an API Reference Manual using all
315        the "protex" comments embedded in the code
316      - see pkg/generic_advdiff, pkg/mnc for examples
317    o MNC:
318      - make myThid the last argument for all subroutines
319      - new default for the grid files: NO halos
320      - add useMNC and other run-time flags
321      - separate per-file-group handling of the unlimited dimension
322      - early initialization of MNC w/ flags read at the eeboot stage
323        and lookup tables set in initialize_fixed
324      - write all MNC output to a freshly-created directory
325    o thermodynamics sea-ice (thsice) is now tested with testreport.
326    o test exp. advect_cs: use the standard cs32 grid ; update output.
327    o Added functionality to grdchk:
328      pick global i,j,k position (or nearest wet) where to perform check.
329    
330    checkpoint52l_post
331    o new land formulation:
332      a) use ground enthalpy as prognostic variable to ensure exact
333         energy conservation.
334      b) account for water temperature and for latent heat of freezing
335         in all processes (rain, run-off, ground storage)
336      c) compute surface and ground temperature implicitly.
337    o aim_v23 modification for new land model:
338      a) Treat separately land / ocean / sea-ice surface fluxes
339         to allow implicit computation of land & sea-ice surface temp.
340      b) add snow precipitation.
341    checkpoint52l_pre
342    
343    o fix problem (when 1 tile is empty) in min/max monitor.
344    o fix bug in timeAve (u,vZetatave in common block)
345    o no restoring terms under ice for pkg/seaice
346    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
347    o bug fix for pkg/seaice pickups
348    o change MNC call locations and add coordinate attributes
349    o mask vorticity at the corner ; affects global_ocean.cs output
350    o fix ini_curvilinear_grid ; test CS experiments with mpi
351    o aim.5l_cs: modify sea-ice fraction input file ; update output
352    o exf: Adding simple range check routine for exf fields after read
353    
354    checkpoint52k_post
355    o removed top-level directory "diags"
356      - we migrated these functions to pkg/timeave a long time ago
357    o fixed bug introduced in pkg/monitor
358    o accuracy ctrlprec = 32 insuffient for gradient checks using
359      averaged fields (I/O via cost_averages)
360      -> use ctrl.h in active_file*.F to control I/O precision.
361    o paramter list of CALL ADTHE_MAIN_LOOP
362    o added initial do_the_model_io to ecco
363    o set all ...Freq to zero after cost_final
364      taveFreq, dumpFreq, pChkptFreq
365    o MAIN and ECCO differentiability restored
366    
367    checkpoint52j_post
368    o fix nchklev in tamc.h for global_ocean...
369    o Bringing flow and store directives up-to-date
370    o Really weird thing!
371      call do_the_model_io from the_main_loop with parameters
372      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
373      TAF places a faulty re-call of initialise_varia
374      after cost_final call which should not be there!
375    checkpoint52j_pre
376    
377    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
378      error messages
379    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
380    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
381      debug output
382    o modfied mdsio_writefield.F to handle non-global files under exch2
383    o update AIM Cubed-Sphere exp (aim.5l_cs):
384      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
385    o update AIM Equatorial Channel exp:
386      use standard aim_v23 pkg and change the SST fields to be more realistic.
387    o globalFile now works with exch2
388    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
389      mon_vort3.F to make exch2 friendly with >1 tile per cube face
390    o limit timeave output for hi-res integrations
391    
392    checkpoint52i_post
393    o removed CPP_EEOPTIONS.h from verification/*/code
394    o updated the tiling for global_ocean_pressure
395    checkpoint52i_pre
396    
397    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
398      the old pkg/aim).
399    
400    checkpoint52h_pre
401    o shortened offending lines in exch2_send_rx?.template
402    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
403    o genmake2: add build & execute test for NetCDF code
404    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
405      old grid files, moved CPP_EEMACROS.h to pkg/exch2
406    o added useSingleCPUIO flag to monitor.F and mon_out.F
407    o added temporary hack for sea-ice dynamics on the cube:
408      metric terms are ignored and it is assumed that
409      there is no sea-ice on cube faces 1, 2, 4, and 5.
410    
411    checkpoint52f_post
412    o added exch2 cube routines to pkg/exch2
413    o modified hs94.cs-32x32x5 to use it
414    o added new grid files to hs94.cs-32x32x5
415    checkpoint52f_pre
416    
417    checkpoint52e_post
418    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
419      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
420    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
421      to work with implicit vertical advection and AB ;
422    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
423    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
424     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
425    checkpoint52e_pre
426    
427    o fix bug in impldiff when Nr=1 or Nr=2.
428    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
429    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
430    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
431      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
432    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
433    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
434    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
435    
436    checkpoint52d_post
437    o re-tiled many expts to allow comparison in multi-processor mode
438      - updated output accordingly
439      - changed hs94.128x64x5 to use intial T from file rather than use the
440        random number generator
441    o add infrastructure in model routines for fizhi and gridalt packages
442    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
443    o changes to permit hi-res, cubed-sphere, configuration
444      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
445      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
446      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
447        of surface winds for the cube
448      (A verification experiment, based on global_ocean.cs32x15, but with
449       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
450       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
451       complete with example surface forcing files and matlab scripts to look
452       at the output and compare it with that of global_ocean.cs32x15.)
453    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
454       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
455       to conform to the common rule.
456    o check-in the first version of the coupler + interfaces for multi-components
457       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
458       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
459       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
460       - ocean and atmos. share the same horizontal grid (no interpolation).
461       - exchanges between component and coupler is done in forward_step
462    o new verification experiment, cpl_aim+ocn:
463       coupled ocean - AIM atmosphere on cs32 grid.
464    
465    checkpoint52d_pre
466    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
467    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
468    
469    checkpoint52c_post
470    o Fixing OPTIONS files for use of exf:
471      - ALLOW_ECCO not needed
472      - ECCO_CPPOPTIONS.h should not be included from
473        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
474        as has been the case in the past
475      - All cal/exf related options are currently set in
476        single header file. Should remain so until we
477        agree on a consistent new policy.
478    o Removed all CPP options for cal package.
479      cal has no more CPP options.
480    o modified STOREs in GAD_ADVECTION
481    o corrected key comp. for passkey
482    
483    checkpoint52b_post
484    o new version: "thsice" of thermodynamic sea-ice pkg:
485     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
486     - modify fluxes but do not change theta directly;
487     - light cleaning of bulk_force pkg (still needed with thsice).
488     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
489       + output_thsice.txt to test thsice & bulk_force pkgs.
490    o put back grid & coriolis monitor output.
491    checkpoint52b_pre
492    
493    o call "do_the_model_io" at the beginning (=> dump initial state)
494    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
495    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
496      (need info on NUMBER_OF_PTRACERS)
497    o missing PTRACERS headers in some routines
498    o default tamc.h in pkg/autodiff supposed to crash
499      to ensure proper customization
500    
501    checkpoint52a_post
502    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
503      - moved surfaceTendencyTice from pkg/seaice to main code
504      - subroutine FREEZE_SURFACE now limits only surface temperature
505        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
506        => new output.txt for global_ocean.cs32x15 & global_with_exf
507      - keep the old version of FREEZE for backward compatibility;
508        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
509      - corresponding modifs for TAF directives
510    o added surface flux output variables to TIMEAVE_STATVARS
511    o time-averaged output for pkg/ptracers
512    o fix problem with ECCO-related divided adjoint
513      snapshot file was missing some ad-variables,
514      but no warning issued by TAF
515    
516    checkpoint52a_pre
517    o some bug fixes for #undef REAL4_IS_SLOW
518    
519    checkpoint52 = ecco_c52_e35
520    o after testing adjoints of checkpoint51u_post
521    
522    checkpoint51u_post
523    o this is the post-merge tag of the ecco-branch
524      (needs another clean checkout and re-testing)
525    o various natl_box_adjoint configs and results
526      but no input fields
527    o obcs adjoint not yet merged!
528    o adding ECCO global 1x1 and 2x2 degree configs
529    o updated/extended some store directives for seaice
530    o pkg/ecco now containes ecco-specific part of cost function
531    o top level routines the_main_loop, forward_step
532      supersede those in model/src/
533      previous input data.cost now in data.ecco
534      (new namelist ecco_cost_nml)
535    o in ctrl/ cleaned some cross-dependencies and updated CPP options
536    
537    checkpoint51t_post
538    o this is the pre-merge tag of the ecco-branch
539    
540    checkpoint51s_post
541    o cleanup: removed various obsolete #define-s
542    o pkg/grdchk
543      - renamed 'ph-grd 3' to 'grad-res'
544      - merged from ecco-branch
545        (remaining bug fixes for obcs gradient checks)
546      - additional high-precision output for testreport
547        (grep for 'precision_grdchk_result')
548    
549    checkpoint51r_post
550    o cleaned up or removed CPP_OPTIONS.h files
551    o updated results for some of the tests to reflect the new
552      optfiles (-ieee: -O0 instead of -O3)
553    
554    checkpoint51q_post
555    o cd_code:
556      - moved cd_scheme.F -> cd_code_scheme.F
557      - separate read_checkpoint from cd_code_ini_vars.F
558      - separated cd_code part from write_checkpoint
559      - updated AD_SOURCE, generated .flow
560      - added CD_CODE_VARS.h to the_main_loop
561      - Moving cd_code specific store dir.s to pkg/cd_code
562    o ctrl package totally restructured
563      - pack/unpack now optional and decoupled from
564        xx_/adxx_ I/O
565      - ctrl_pack/unpack cleaned
566        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
567      - confined inclusion of AD_CONFIG.h to where necessary.
568    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
569    
570    checkpoint51p_post
571    o create initial cd_code package
572      - WARNING: the initialization of fields within packages
573        is broken because INI_FIELDS (where READ_CHECKPOINT is
574        called) is called *before* PACKAGES_INIT_VARIABLES.
575        This seems to be backwards since
576        1) its important to initially zero the entire field including
577           the "halo" region
578        2) zeroing needs to be done *before* reading pickup info
579           and the pickup call might or might not happen in any
580           particular run
581      - this needs an overhaul for R2
582    o cleanup verification/*/code/GMREDI_OPTIONS.h
583    o cleanup testreport
584    
585    checkpoint51o_post
586    o bringing AD-related verif's up to date with genmake2
587      - carbon/
588      - global_ocean.90x40x15/
589      - hs.94.1x64x5/
590      - (front_relax/ )
591    o (more) consistent directory structure for AD-related verif.'s
592    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
593    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
594    o bug fix in find_alpha.F for MDJWF:
595      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
596        change rho -> rho-rhoConst
597      - replace call find_rho to find_rhonum
598    o initialisation of rFlx extended to full array (required by TAF)
599      and shifted to thermodynamics
600    o removed PTRACERS.h in ptracers routine
601    o added surfacetendencyPtr to S/R parameter list pracers_forcing
602    o Correcting initialisations for fVerU, fVerV.
603    o helping TAF to recognize dependency on kUp for
604      fVerU, fVerV
605    o Replacing delZ by delR in pkg/ctrl/
606    checkpoint51o_pre
607    
608    o undid all of cp51 pending some cleanups and discussion
609    o added the [#include "AD_CONFIG.h"] statement to all files that need
610       it for adjoint/tl #defines
611     o re-worked the build logic in genmake2 to support AD_CONFIG.h
612     o removed tools/genmake since it no longer works
613    
614    checkpoint51n_post
615    o modifications to make FREEZE flux visible to pkg/kpp
616      - moved surfaceTendencyTice from pkg/seaice to main code
617      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
618      - subroutine FREEZE now limits only surface temperature
619        (this means new output.txt for global_ocean.90x40x15,
620         global_ocean.cs32x15, and global_with_exf)
621    o added surface flux output variables to TIMEAVE_STATVARS
622    
623    checkpoint51n_pre
624    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
625    o added [#include "AD_CONFIG.h"] to all files that use the following
626      defines:
627      - ALLOW_ADJOINT_RUN
628      - ALLOW_TANGENTLINEAR_RUN
629      - ALLOW_ECCO_OPTIMIZATION
630    
631    checkpoint51m_post
632    o incorporating changes to get TAMC/TAF working in genmake2
633      - added new TAMC/TAF targets to the Makefile
634      - various cleanups related to package handling
635      - these changes should have no impact on the forward model
636    
637    checkpoint51l_post
638    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
639     - faster algorithm for cal_addtime.F
640     - higher precision arithmetic, where needed
641     - pkg/exf *startdate variables changed from calendar date to
642       model integration time
643    
644    checkpoint51l_pre
645    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
646    o enable to apply restoring on S & T only in a latitude band.
647    o update output (external_forcing_surf modif. change truncation errors)
648       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
649    
650    checkpoint51k_post
651    o change default to: useNHMTerms=.FALSE.
652     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
653       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
654     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
655        exp1, ideal_2D_oce
656     - change data file of oceanic exp (leave the results unchanged for now)
657       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
658    o set gravitySign automatically according to the vertical coordinate used
659      (and change sign: back to "logical" value: +1 when R increases downward)
660    o added an include barrier to the default CPP_OPTIONS.h and
661      removed the #include "PACKAGES_CONFIG.h" from it
662    o fix a bug in mom_fluxform (from chk51j_post)
663    
664    checkpoint51j_post
665    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
666    o adjusted some flow directives (dynamics, thermodynamics)
667    o added cubed-sphere case to test cost function
668    o heckpoint_lev?_directives.h now include
669      pkg-specific directives, whenever those are enabled.
670    o Moving pkg-specific flow directives to corresponding pkg
671      Moving pkg-specific differentiation list to corresponding pkg
672      Moving pkg-specific checkpoint-lev storing to corresponding pkg
673      ---> conventions are
674           - pkg_ad.flow
675           - pkg_ad_diff.list
676           - pkg_ad_check_lev?_dir.h
677    
678    checkpoint51i_post
679    o merge of the branch-genmake2
680      - knowingly breaks the older genmake
681      - automatic generation of all ALLOW_${PKG_NAME} defines
682      - new testreport supersedes older testscript
683    o large number of package inclusion and header cleanups
684    checkpoint51i_pre
685    
686    o new output for adjoin of global ocean vector invariant
687    o fix for checkpoint of thermodynamic seaice and bulk_force
688    o Steph gchem various cleanups
689    
690    checkpoint 51h_pre
691    o fixed some single quotes
692    o modify gchem pkg to be more versatile
693    o modifications to clean up dic pkg
694    o add pkg/cfc
695    
696    checkpoint51g_post
697    o provide links for ARPACK and ADM*TLM
698    o start removing verification/vero/
699    o update AD-related stuff
700      (in particular some IF-statements in model/src/ routines)
701    o adding to verification/global_ocean.90x40x15/ adjoint of
702      vector invariant setup
703    
704    checkpoint51f_post
705    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
706    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
707      of tracer Green's fucntions for ocean inversion project.
708    
709    checkpoint51f_pre
710    o Added on-the-fly spatial interpolation capability
711        "USE_EXF_INTERPOLATION" to pkg/exf.
712      - This is a temporary Cartesian-grid hack until
713        the super-duper ESMF coupler becomes available.
714      - See verification/global_with_exf/README for usage example.
715      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
716        flags and modified pkg/seaice accordingly.
717    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
718        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
719        non-local transport term.
720    
721    checkpoint51e_post
722    o pkg/mom_vecinv:
723      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
724      - add time-ave diagnostic of vorticity advection.
725    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
726    o atmospheric geopotential: - include water vapor effect;
727                                - use p^kappa in p* scaling.
728    o land pkg: read initial state from files.
729    o AIM : add stratospheric drag in the upper level
730    
731    checkpoint51d_post
732    o change function ILNBLNK (=> last non-blank char.) to return zero
733      (instead of the string length) when the string. char is empty
734    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
735    o modif's to restore TAMC compatibility
736      - avoid "_d" constructs in PARAMETER declarations
737      - avoid interrupting lines by comment lines
738    o Use cluster local disks for purely local I/O
739      vs. globally visible disks needed for ctrl stuff
740      (merged from ecco-branch)
741      - new active_file_loc... and mdsio_..._loc routines
742      - affected packages: autodiff, ctrl, grdchk, mdsio
743    
744    checkpoint51c_post
745    o introducing integer flag debugLevel
746      - debLevZero: suppress all output
747      - debLevA: standard
748      - debLevB: equivalent to current debugMode=.TRUE.
749    o introducing pathname variable mdsioLocalDir for mdsio
750      that can be specified at runtime
751      (relevant for cluster I/O to local disk)
752    `
753    >>>checkpoint51b_post
754    adjoint of ptracers
755    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
756    o extended state in checkpoint_lev?, etc.
757    o alternative ctrl/cost with tr1 or ptracer
758    o new comlev1_bibj_ptracers
759    o new ptracers.flow
760    o made ptracers_forcing same as external_forcing_s
761    o added verification for adjoint with ptracers
762      - adm. grdchk fail so far
763      - tlm. grdchk OK
764      - checked tapelev/comlev recomputations: OK
765    <<<checkpoint51b_pre
766    
767    checkpoint51a_post
768    o added code for biogeochemistry package
769      - new pkgs: dic, gchem
770      - new subroutine in ptracers
771    o modify code for biogeo packages
772      - in model/src and pkg/ptracers
773    
774    checkpoint51
775    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
776      - autodiff, ctrl, exf, grdchk, seaice
777      kept separate packages
778      - cost, ecco, obcs
779    o updating verification/internal_wave, verification/lab_sea
780      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
781    
782    checkpoint50i_post
783    o Preparing next differentiable checkpoint and sync
784      of MAIN vs. ecco-branch
785      - 1st step: this one is differentiable
786      - 2nd step: next(! not this) checkpoint will have updated packages
787                  from ecco-branch)
788    
789    checkpoint50h_post
790    o new package "land": provide surface BC for AIM.
791    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
792    o AIM: use true log-P extrapolation for near surface temp (= as in
793        F.Molteni paper) ; update aim.5l_cs output.
794    o New variable in PARM03 for more flexible pickups
795    o somewhat cleaned package initialisation sequence for
796      ctrl/ cost/ ecco/ in packages_... routines
797    
798    checkpoint50g_post
799    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
800      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
801      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
802        made the default because of faster convergence than ADI
803    
804    checkpoint50f_post
805    o exf totally restructured
806      - replaced all exf_set_ routines by one generic exf_set_gen.F
807        and made sure it's still differentiable
808      - split exf_getffields.F into new exf_bulkformulae.F
809      - exf_inscal_/exf_outscal_ suffixes consistent with field names
810      - updated adjoint/makefile and relevant verif. accordingly
811    
812    checkpoint50f_pre
813     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
814          + change Evap over land. (update aim.5l_cs output)
815     o added missing .cvsignores and made uniform across expts
816     o changed configuration of tidal_basin_2d expt
817     o added pkg/debug functions for tracing code in fatal crashes
818     o tidied pkg/monitor to use MONITOR_OPTIONS.h
819     o new fn in pkg/monitor to stop model if solution grows too big
820     o removed lots of single quotes from comments
821    
822    checkpoint50e_post
823    o make KPP work with PTRACERS
824     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
825       nearly a copy of kpp_transport_s
826     - there is no analogue to SurfaceTendencyS, so I have to use
827       gPtr(of the surface layer) instead
828    o add a new platform SunFire+mpi (SunFire 15000) to genmake
829    checkpoint50e_pre
830    
831    checkpoint50d_post
832    o change kpp output from multiple-record state files to single-record state
833      files analogous to write_state.F
834    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
835      analogous to the cg2d-related output.
836    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
837      so that writing to internal file fn (with length 512) fails.
838    checkpoint50d_pre
839    
840    checkpoint50c_post
841    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
842    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
843    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
844    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
845    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
846    
847    checkpoint50c_pre
848    Merging from release1_p13:
849    o bug fix for pkg/seaice dynamic solver
850    o Added SEAICE_initialHEFF to pkg/seaice
851    
852    checkpoint50b_post
853    o store u*,v* in gU,V instead of in guNm1,gvNm1
854    o in order to put the momForcing out of the Adams-Bashforth:
855      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
856      to timestep.F
857    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
858    o re-generate output for highly sensitive test-exp:
859       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
860    
861    checkpoint50b_pre
862    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
863    o corrected CPP option mismatch in exf_Bulk... functions for case
864      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
865    
866    checkpoint50a_post
867    o Bug fix for merging between c50 and KPP.
868      ikey was passed from thermodynamics to kpp_calc via
869      common block rather than being recomputed in kpp_calc,
870      in contradiction with new key itdkey.
871      New key ikppkey created, and tamc.h headers updated.
872    
873    checkpoint50
874    - 2nd step of merge with ecco-branch:
875      merge changes in ecco-branch back into main trunk
876    - bug fix in find_alpha
877    - more storing in gmredi_calc_tensor.F, kpp_routines.F
878    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
879    - merged some sliced AD support routines
880    
881    checkpoint49
882    merged from ecco-branch:
883    o exf:
884      - Enable initialisation of forcing fields to constant
885        (runtime) values.
886      - in exf_getffields.F
887        Reduce i-/j-loop to interior domain, discarding overlaps.
888        That also fixes wrong TAF-key computations for key_1, key_2
889        with bulf formulae.
890      - exf_init.F modify #ifdef for exf_init_evap
891      - exf_getffieldrec.F, ctrl_getrec.F
892        The following INT-usages are not safe:
893          fldsecs  = int(fldsecs/fldperiod)*fldperiod
894          fldcount = int(fldsecs/fldperiod) + 1
895        and were modified.
896    o autodiff: checkpoint_lev...
897      - updated storing for bulk formulae (some arrays were missing)
898      - added state for seaice package
899      - synchronized with main branch
900    o DIVA:
901      Modif.s in
902      - the_main_loop.F
903      - the_model_main.F
904      and added cost_final_restore.F cost_final_store.F
905      o With these changes, it is possible to fully separate
906        the first forward run to compute the cost function (mdthe_main_loop)
907        and adjoint runs over individual DIVA intervals (adthe_main_loop)
908        into separate model executions.
909        This enables better tuning of DIVA to given queue sizes.
910      o Loss of cost function value in consecutive DIVA runs is
911        fixed by storing to 'costfinal' file.
912      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
913        beginning/end of adjoint integration is accounted for.
914      The current changes apply to TAF-1.4.26.
915      TAF has one remaining bug, requiring one manual change
916      (see MITgcm manual).
917    o cal: synchronized between MAIN and ecco-branch
918    
919    checkpoint48i_post
920    o Changes to restore differentiability of code w.r.t. previous tag
921      (mostly adding new routines to make list and replacing
922      pressure by totPhiHyd).
923    o Updated and merged grdchk package
924      - has both ADM and TLM checks
925      - works for single- and multi-proc.
926      - output cleaned
927      - worked successfully for parallel DIVA
928    o genmake:
929      - Adding -platform=SP4
930      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
931    o Modif. for DIVA:
932      ctrl_unpack should not be called in intermediate DIVA interval.
933      (similar thing would apply for active files such as
934      tbar, sbar, psbar, which should not be reinitialised;
935      only relevant for ecco-branch)
936    
937    checkpoint48h_post
938    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
939    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
940    o Added SEAICE_initialHEFF to pkg/seaice
941    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
942    
943    checkpoint48g_post
944    --- EOS:
945    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
946      store total Potential in totPhyHyd for diagnostics & EOS.
947    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
948    --- Pressure/geopotential gradient:
949    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
950    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
951      ( changes results of global_ocean_pressure )
952    o NLFS + z-coord.: add eta*Rho' contribution.
953    o accurate phiHyd when using interface-W at the middle between 2 centers
954     ( changes results of ideal_2D_oce )
955    o includes r* 2nd term in potential gradient.
956    
957    checkpoint48f_post
958    Merging from release1_p12:
959    o Modifications for using pkg/exf with pkg/seaice
960      - improved description of the various forcing configurations
961      - added basic radiation bulk formulae to pkg/exf
962      - units/sign fix for evap computation in exf_getffields.F
963      - updated verification/global_with_exf/results/output.txt
964    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
965      (SBO) core products, including oceanic mass, center-of-mass,
966      angular, and bottom pressure (see pkg/sbo/README.sbo).
967    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
968      to avoid negative values in shallow regions.
969      - updated verification/natl_box/results/output.txt
970      - updated verification/lab_sea/results/output.txt
971    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
972    o Added useSingleCpuIO option (see PARAMS.h).
973    o Updated useSingleCpuIO option in mdsio_writefield.F to
974      work with multi-field files, e.g., for single-file pickup.
975    o pkg/seaice:
976      - bug fix in growth.F: QNET for no shortwave case
977      - added HeffFile for specifying initial sea-ice thickness
978      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
979    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
980      kpp_transport_t.F, forward_step.F, and the_main_loop.F
981    o pkg/seaice:
982      - adjoint-friendly modifications
983      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
984    
985    checkpoint48e_post
986    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
987    o dynamics: change definition of computational domain & adapt mom_fluxform
988      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
989    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
990        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
991        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
992        global_ocean.90x40x15 global_with_exf global_ocean_pressure
993        inverted_barometer solid-body.cs-32x32x1
994      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
995    
996    checkpoint48d_post
997    o in preparation for r*:
998     a) use pre-computed gradient of hydrostatic potential:
999        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1000     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1001        => affects results of glob_oce_pressure (different truncation error)  
1002      update output.txt of ideal_2D_oce & global_ocean_pressure
1003    
1004    checkpoint48d_pre
1005    o in preparation for r*:
1006      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1007      pass the 2 comp. of the grad. as arguments to momentum S/R.
1008      but for the moment, only used if it does not change the results.
1009    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1010    
1011    checkpoint48c_post
1012    Modifications in treatment of initial flux forcing controls
1013    to avoid extra storing of flux fields.
1014    
1015    checkpoint48c_pre
1016    o Added tidal_basin_2d experiment (currently 1D!)
1017    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1018    
1019    checkpoint48b_post
1020    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1021     (modification to pressure gradient not yet implemented)
1022    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1023      (for U & V) that are used for vertical advection of momentum.
1024    
1025    checkpoint48a_post
1026    o In preparation for r*, use temp. array to compute vertical transport
1027       in flux-form momentum pkg. => change results of few test-exp.
1028      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1029                        lab_sea, natl_box & plume_on_slope
1030    
1031    checkpoint48
1032    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1033    
1034    checkpoint47j_post
1035    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1036    o moved adexch from forward_step to addummy_in_stepping
1037    o added exch in ctrl_map_...
1038    o aveFreq.=0. at end of cost_final to avoid overwrite in
1039      reverse checkpointing loop
1040    o Yet more changes in gmredi:
1041      * adgmredi_calc_tensor
1042        avoiding all recomputation of gmredi_slope_limit
1043      * adgmredi_x/y/rtransport
1044        added flag for excessive storing to avoid recomp. of
1045        u/v/rtans, dTdx/y/z
1046        -> this is not really necessary and very memory-consuming
1047      * adgmredi_slope_psi:
1048        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1049      * gmredi_slope_limit
1050        re-activated full calculation of taperfct for case 'ac02'
1051    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1052    
1053    checkpoint47i_post
1054    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1055    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1056      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1057    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1058    o gmredi: fix few bugs.
1059    
1060    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1061    This will be a good checkpoint to plug into the ecco-branch.
1062    o few modif.'s to get latest version adjointed
1063      (mainly kick out code in ini_linear_phisurf)
1064    o modif's to run adjoint with exactConserv
1065    o case GM_BOLUS_ADVEC should be cleaned
1066      S/R gmredi_slope_psi should be cleaned
1067    o verification/carbon now has exactConserv=.TRUE.
1068    
1069    checkpoint47g_post
1070    o time-average AIM output: becomes independent from statvars time-average
1071      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1072    o After TAF bug fix:
1073      Tested adjoint of gmredi package.
1074      Tests were done with checkpoint47 rather than with latest
1075      checkpoint47f_post since the latter is broken for the adjoint
1076      verification/carbon/ contains both ADM and TLM gradient checks.
1077    Here they are, before they get changed/lost/stolen.
1078    Mostly modif.'s to fix numerical sensitivities.
1079    Gradient checks OK for
1080    - GM_taper_scheme:
1081      * clipping
1082      * ac02
1083      * linear
1084      * glw91
1085      * dm95
1086      * ldd97
1087    - GMREDI_OPTIONS:
1088      * GM_VISBECK_VARIABLE_K
1089      * GM_NON_UNITY_DIAGONAL
1090      * GM_EXTRA_DIAGONAL
1091      * GM_BOLUS_ADVEC
1092    in conjunction with data.gmredi parameters to be checked in
1093    in a few minutes under verification/carbon/code/
1094    
1095    checkpoint47f_post
1096    Merging from release1_p10:
1097    o modifications for using pkg/exf with pkg/seaice
1098      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1099        and SEAICE_EXTERNAL_FLUXES
1100      - pkg/exf CPP options EXF_READ_EVAP and
1101        EXF_NO_BULK_COMPUTATIONS
1102      - usage examples are Experiments 8 and 9 in
1103        verification/lab_sea/README
1104      - verification/lab_sea default experiment now uses
1105        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1106    
1107    checkpoint47e_post
1108    o created a tag prior to creating a branch
1109    
1110    checkpoint47d_post
1111    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1112      at the bottom boundary had an erroneous half slip boundary condition
1113    o added bottom drag and no slip boundary condition capabilities to
1114      oceanic pressure coordinates code
1115    o added new verification experiment global_ocean_pressure, this experiment is
1116      also described in the tutorial section of the manual
1117    checkpoint47d_pre
1118    
1119    checkpoint47c_post
1120    o Added a verification experiment for a global cubed-sphere ocean run
1121      -  verification/global_ocean.cubed32x32x30
1122      -  uses pkg/therm_seaice and pkg/bulk_forcing
1123    
1124    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1125    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1126      when using P-coordinate; only implemented for atmospheric config.
1127    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1128      NOTES: requires option NONLIN_FRSURF to be "#define".
1129    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1130    
1131    checkpoint47b_post
1132    Merging from release1_p9:
1133    o pkg/seaice
1134      - removed GOTO's and added taf directives
1135      - double precision constants to reduce the g77 (Linux)
1136        to F77 (SGI) differences reported in release1_p8
1137    o tools/genmake
1138      - added SGI options
1139    o verification/testscript
1140      - updated to that of checkpoint47a_post
1141    o verification/global_ocean.90x40x15/input/eedata
1142      - modified for SGI f77 compatibility
1143    o verification/lab_sea
1144      - added description of sea-ice model
1145      - added missing matlab routines
1146      - added test of thermodynamics parallelization
1147    
1148    checkpoint47a_post
1149    o new pkg: aim_v23
1150     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1151       for now, keep the same surface forcing as before.
1152     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1153     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1154     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1155    o add diagnostic of surface correction term in monitor output
1156    
1157    o bulk_force and therm_seaice
1158    - Two packages:  bulk_force (Bulk forcing)
1159      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1160    - Earlier integration from Stephaine Dutkiewicz
1161      and Patrick Heimbach.
1162    - Two ifdef statements for compile time,
1163       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1164    
1165    checkpoint47
1166    differentiable version of checkpoint46n_post
1167    o bug fix in quasihydrostaticterms
1168    o * "clean" adjoint code (in terms of extensive recomputations)
1169        can now be obtained for all GMREDI options (i.e. for
1170        - GM_VISBECK_VARIABLE_K
1171        - GM_NON_UNITY_DIAGONAL
1172        - GM_EXTRA_DIAGONAL
1173        - GM_BOLUS_ADVEC )
1174      * However, wrong gradient check problem remains unsolved.
1175      * New CPP options have been introduced for different
1176        tapering schemes
1177    o external_fields_load now part of differentiation list
1178    o pressure needs multiple storing;
1179      would be nice to have store_pressure at beginning or
1180      end of forward_step, e.g. by having phiHyd global (5-dim.)
1181      (NB: pressure is needed for certain cases in find_rho,
1182      which is also invoked through convective_adjustment).
1183    o recomputations in find_rho for cases
1184     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1185    o #define ATMOSPHERIC_LOADING should be differentiable
1186    o ini_forcing shifted to begining of initialise_varia
1187    o Incorporating QNVS line search routines into MITgcm
1188      (this is separate code, and therefore not under pkg)
1189      lsopt/, optim/
1190    o Updated verification/carbon/
1191      - #define GM_VISBECK_VARIABLE_K
1192      - GM_taper_scheme    = 'ldd97'    
1193    
1194    checkpoint46n_post
1195    Merging from release1_p8:
1196    o verification/natl_box:
1197      updating new external_fields_load routine
1198    o New package: pkg/seaice
1199      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1200      The sea-ice code is based on Hibler (1979-1980).
1201      Two sea-ice dynamic solvers, ADI and LSR, are included.
1202      In addition to computing prognostic sea-ice variables and diagnosing
1203      the forcing/external data fields that drive the ocean model,
1204      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1205      The implied surface heat flux is then stored in variable
1206      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1207      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1208      non-local transport term.  Because this call precedes model
1209      thermodynamics, temperature under sea-ice may not be "exactly" at
1210      the freezing point by the time theta is dumped or time-averaged.
1211      N.B.: fairly large differences in accuracy occur across
1212            different platforms/compilers; comparison between
1213            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1214            generated output gives:
1215       T           S           U           V
1216      C D M    c        m  s        m  s        m  s        m  s
1217      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1218      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1219      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1220    
1221      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1222    o GAD:
1223      - generated new common blocks to account for call of
1224        same gad routines with differing traceridentities
1225        (needed to modify tracerIdentity indices in GAD.h)
1226      - generated separate common blocks for case useCubedSphereExchange
1227        (Department of Futurology)
1228      - parameter lists to gmredi_?transport: added tracerIdentity
1229      - added new key indices to tamc.h
1230    o external_fields_load:
1231      - added this routine to TAF list
1232      - needed to make some common blocks global and additional storing
1233        along the same lines as exf package (checkpoint_lev?_directives.h)
1234    o exf:
1235      updated external forcing package
1236      - bug fixes carried over from ecco-branch
1237        (missing OBCS_OPTIONS.h in two routines)
1238      - enable easy to use "no forcing".
1239      - added exf I/O for atmospheric loading
1240      - added exf I/O for runoff data
1241      - transfered scaling between exf <-> MITgcm to exf namelist
1242    o Adding new verification experiment global_with_exf.
1243      This verification experiment is almost identical to the
1244      global_ocean.90x40x15 experiment, except that it uses
1245      the exf (and cal) package instead of the
1246      external_fields_load routine (cf README file).
1247    
1248    checkpoint46m_post
1249    o modified testscript to return -- when there are no lines of "%MON" output
1250    o added new flag "quasiHydrostatic" for QH mode
1251      and new routine quasihydrostaticterms()
1252    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1253      New routine: mom_u_coriolis_nh()
1254    o fixed sign of non-hydrostatic metric terms in u and v equations.
1255      Depend on correct sign of gravitySign.
1256    o added work.pc* to .cvsignore in aim directories using ifc
1257    o introduced flag for controllin non-hydrostatic metric terms
1258    o removed gravitySign from PARM04
1259    o switched to g77/ifc from pgf77 in aim experiments
1260    
1261    checkpoint46l_post
1262    o made convective adjustment work with pressure coordinates:
1263     - changed the direction of k-loop in convective_adjustment.F for the
1264       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1265     - adjusted the reference pressure k-index in convective_adjustment.F
1266     - adjusted the convection condition in convect.F (in analogy to
1267       calc_ivdc.F)
1268     - convective_adjustment no longer computes anything on the halos
1269     - removed the warnings about negative salinity from find_rho.F and
1270       find_alpha.F; instead the new routine look_for_neg_salinity, called
1271       at the beginning of find_rho, find_alpha, and find_beta, does a
1272       check of the entire slice, if CPP-option
1273       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1274    checkpoint46l_pre
1275    
1276    checkpoint46k_post
1277    o fixed the verification/global_ocean.90x40x15 experiment:
1278     - new bathymetry (the world according to A., JMC, and M.)
1279     - new initial fields and forcing fields (*.bin files)
1280     - new POLY3.COEFFS (for the next release one should switch to a full
1281       equation of state: JMD95P or MDJWF)
1282     - fixed several errors and redundancies in the data file
1283     - experiment uses looped cells
1284     - added matlab directory with diagnostic scripts for plotting of output
1285    
1286    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1287     - read AIM physics parameters from a file (data.aimphys)
1288     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1289    
1290    checkpoint46j_post
1291    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1292    o move wVel computation at the end of the time step, in S/R integr_continuity
1293    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1294    o update timeave pkg for wVel diagnostic.
1295    checkpoint46j_pre
1296    
1297    checkpoint46i_post
1298    o Clean up AIM package (and keep the results unchanged):
1299      include CPP_OPTION and use IMPLICT NONE in all routines ;
1300      declare all the variables _RL ; use _d 0 for all numerical constants.
1301      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1302    
1303    checkpoint46h_post
1304    o cleaned up the use of rhoNil and rhoConst.
1305      - rhoNil should only appear in the LINEAR equation of state, everywhere
1306        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1307        and the dynamical equations are all divided by rhoConst
1308    o introduced new parameter rhoConstFresh, a reference density of fresh
1309      water, to remove the fresh water flux's dependence on rhoNil. The default
1310      value is 999.8 kg/m^3
1311    o cleanup up external_forcing.F and external_forcing_surf.F
1312      - can now be used by both OCEANIC and OCEANICP
1313    checkpoint46h_pre
1314    
1315     Added code to convert surface volume flux (fresh water) into
1316     a mass flux when using P coordinates in the ocean (OCEANICP).
1317     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1318    
1319    checkpoint46g_post
1320    o Include a new diagnostic variable phiHydLow for the ocean model
1321      - in z-coordinates, it is the bottom pressure anomaly
1322      - in p-coordinates, it is the sea surface elevation
1323      - in both cases, these variable have global drift, reflecting the mass
1324        drift in z-coordinates and the volume drift in p-coordinates
1325      - included time averaging for phiHydLow, be aware of the drift!
1326    o depth-dependent computation of Bo_surf for pressure coordinates
1327      in the ocean (buoyancyRelation='OCEANICP')
1328      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1329        Theta, Salinity, and Pressure in the parameter list. This routine is
1330        presently contained in find_rho.F. This routine does not give the
1331        correct density for 'POLY3', which would be a z-dependent reference
1332        density.
1333    o cleaned up find_rho
1334      - removed obsolete 'eqn' from the parameter list.
1335    o added two new verification experiments: gop and goz
1336      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1337    checkpoint46g_pre
1338    
1339    checkpoint46f_post
1340    o Enable tangent linear (forward mode) gradient checks:
1341      - extended active file handling to g_... files
1342      - added TANGENT_SIMULATION to theSimulationMode
1343      - extended grdchk package accordingly
1344    o added tangent linear setup in verification/carbon/code_ftl
1345    o added adjoint setup in verification/front_relax/code_ad
1346    
1347    checkpoint46e_post
1348    o Added new equation of state -> MDJWF
1349      - EOS of McDougall et al., 2002, JAOT, submitted
1350      - caveat: the equation of state is only valid for a smaller (more
1351        realistic?) range of values than JMD95P/Z and UNESCO
1352      - added masks to the calculation of pressure in store_pressure
1353      - added more check values for density in check_eos (ini_eos.F), some of
1354        the old check values are out of the range of the MDJWF-eos, so don't
1355        expect perfect matches for those
1356    checkpoint46e_pre
1357    
1358  checkpoint46d_post  checkpoint46d_post
1359  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1360    'OCEANICP', also initialised field pressure correctly in ini_eos in the    'OCEANICP', also initialised field pressure correctly in ini_eos in the
# Line 26  checkpoint46c_pre Line 1378  checkpoint46c_pre
1378    
1379  checkpoint46b_post  checkpoint46b_post
1380  o Added new equation of state -> JMD95Z and JMD95P  o Added new equation of state -> JMD95Z and JMD95P
1381    - EOS of Jackett and McDougall, 1995, JPO    - EOS of Jackett and McDougall, 1995, JAOT
1382    - moved all EOS parameters into EOS.h    - moved all EOS parameters into EOS.h
1383    - new routines ini_eos.F, store_pressure.F    - new routines ini_eos.F, store_pressure.F
1384  o Added UNESCO EOS, but not recommended because it requires  o Added UNESCO EOS, but not recommended because it requires

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