MATCH    Aerosol Transport    Model HOME             SOURCE             DOCS             CONTACTS             LINKS

MATCH Version Change Summaries

v4.2 (15 August 2003)

• New features.
• GNUmakefile.AIX now set for 64 bit addressing mode. When installing, use netcdf lib64 options instead of lib32 or take out 64 flags in makefile. Debug compile for this makefile is now useful.
• configure should be easier to use
• Remote dispose of rstrt files now labels them to correspond with r0xxx file, to make rewinding easier.
• General code improvement and bug fixes.
• spitfire advection stability improved
• NCEP readers: disabled file size check (set expected size = 0 in readers/mss.c). This is dangerous in case of partially transferred files, but solves the stall caused by incorrectly reported sizes on the grb*list files.
• dynamics file name incrementation debugged for date-like (all integer) file names

v4.0 ( 10 September 2002 )

• New features.
• version number written out
• namelist option: OUTINST, OUTTIMAV = 'ALL'
• configure: allows unsupported operating systems & compilers
• documentation: INSTALL.html,README.html
  document/ contains more html files
• General code improvement and bug fixes.
• Top interface fixed to 0. for spitfire; not allowed to 0. for slt
• semi-Lagrangian transport (slt) up-to-date with real(r8)
• improved mass/wind consistency adjustment
• spitfire: fix for pgf90 compiler
• fixed CALC_ADV_FLUX bug
• precision of all real vars explicity defined
• configure: improved searching, stability,verbosity
  sslt files no longer in vanilla vers; CONVTRAN on by default in params.h

v4.0beta (6 December 2001)

• New features.
• Compile in 32 or 64 bit mode, controlled by precision_mode in GNUmakefile
• Configure capability (see INSTALL)
• New platforms: Sun OS, Linux (Lahey and Portland Group compilers)
• Tracer initialization for default test tracers in initr0.F
• Ncep readers fit to run with 4 digit year. The use of 2 digit year will no longer be supported.
• New fields
  • ETDOTR vertical velocity in eta coord before correction
  • MCA Mass convergence above
  • MCAR Mass convergence above before correction
  • O3INT integrated ozone in Dobson units
• Hooks added for undistributed aersol/assimilation routines
• General code improvement and bug fixes.
• NCEP readers corrected to use variables at their effective time.
  • Forecasted fields (6 hr offset): LAND,ICEC,TMP,SOILW,WEASD
  • Averaged fields (3 hroffset): UFLX,VFLX,SHTFL,LHTFL,DSWRF,USWRF,DLWRF
• Volumetric soil water content at surface given correct name
• Netcdf using nf90 instead of nf conventions, requires atleast netcdf3.5
• Converted to f90 modules: ccmhist.F,cldwat.F,cloud.F,conv_hack.F,conv_zhang.F,rec_io.F,surface.F
• System calls controlled by fsystem.c instead of syscall, fileUtils.F
• Corrected cloud.F,cldwtr.F,physlic.F lahey compiler to deal with uninitialized variables

v3.4 (20 January 2000)

• Changes to the dynamics or physics.
• Modify Zhang convection by adding a one line mod to cldprp() which has the effect of a trigger function.
• Add a "polar cap" to the SPITFIRE advection.
• New features.
• Allow Q (specific humidity) to be initialized from the same file as the other trace species. By default Q is initialized from the input meteorology.
• Add alternate version of the Zhang convection that contains "trigger functions" added by Phil. This option is enabled by setting the namelist variable useAltConv=.true..
• Allow calculation of monthly average output fields. This is turned on by setting the namelist variable nhtfrq=0.
• Add reader for netCDF input meteorology.
• Add the global mass fixer code used by the SLT advection. This is off by default, and is enabled be setting the namelist variable fixmas=.true..
• Add diagnostics:
• Advective fluxes for all trace species, air, and Q in the X, Y, and Z directions. This option is turned on by adding "#define CALC_ADV_FLUX" to the params.h configuration file.
• Geopotential height above surface at midpoints.
• Total advective tendency of potential temperature.
• Add options to read new input meteorological fields:
• Upward solar flux at the surface.
• Downward longwave flux at the surface.
• Volumetric soil water content at the surface.
• General code improvement and bug fixes.
• Replace Cray and SGI multitasking directives with OpenMP directives.
• Remove Cray pointers. The dynamic memory allocation that was being done using Cray pointers is now done using either automatic or allocatable arrays.
• Start converting the code to make use of F90 modules.
• Remove references to msread and mswrite (except in the NCEP GRIB reader). Set up reads from the NCAR MSS to use msrcp via issuing system commands. Set up writes to the NCAR MSS to use the perl script rdsp.
• Remove the code that keeps track of date/time info from the history output module and add it to the control module. Changed namelist variables related to date/time of initial conditions.
• Remove out of core memory option. There are no longer any computers in existence that could run MATCH efficiently in that mode.
• Remove stubs for Tiedtke convection codes and for chemistry codes.
• Fixed bug in cmfadj() in archived convection mode.
• Fixed bug in NCEP GRIB reader encountered using the 7.3 compilers on the SGI.

v3.3 (28 January 1999)

• Changes to the dynamics or physics.
• Replace the Semi-Lagrangian advection with the SPITFIRE scheme developed by Phil Rasch.
• Update moist convection parameterization to CCM3.6 versions. The deep convective tracer transport (Zhang scheme) has been moved outside of the routine that diagnoses the mass fluxes. The transport is now done after the wet deposition calculation.
• Update vertical diffusion and PBL parameterizations to CCM3.6 versions.
• Add latest version of Rasch's prognostic cloud water scheme.
• New features.
• Add capability to do a complete hydrologic cycle calculation. The namelist variable QRELAX is provided to nudge Q towards the input meteorology, but by default this option is off.
• Add a dry deposition routine that uses fixed values of deposition velocity that depend on whether the grid box is over land, ocean, or sea ice.
• Add the wet deposition routine used in the CCM3 sulfur cycle model.
• Add the NCEP reader code contributed by John Caron to the standard distribution.
• Modify the day/date calculations so that either a Gregorian or a 365 day calendar may be used. The default is Gregorian.
• Add diagnostics:
• Tracer mixing ratio tendencies due to advection, vertical diffusion, and moist convection.
• Geopotential height at interfaces
• Total precipitation
• Tendency of Q due to total precip.
• Relative humidity.
• Total column water vapor.
• Low, med, and hgh clouds using a radom overlap calculation (as in CCM3).
• General code improvement and bug fixes.
• Add compiler directives to allow for multitasking on SGI.
• Fix packing routines so that packing can be done on non-Cray machines that have the ncaru library installed.
• Fix fmalloc.c for SGI compilation with -64 option.
• Change Fortran intrinsic functions from specific to generic versions.
• Moved allocation of memory for the global 3D arrays in main from stack to static (by adding a save statement). This is to help with problems of system stack size limitations on non-Cray architectures.
• Removed block data routines that were causing problems for some non-Cray compilers.
• Changed the first dimension of oro, phis, and sflx from plon to plond for consistency with the CCM.

v3.2 (17 March 1997)

• Changes to the dynamics or physics.
• Added "filter" to etadot calculation. This can be turned off using the namelist variable filtedot. The default is on.
• New features.
• Add namelist variable esice so that the option to either account for an ice phase or not in the saturation water vapor calcs can be turned on or off without code modification. The default is to account for an ice phase (esice=.true.).
• Add namelist variable limqin to enable the limiting of the input Q field to have a maximum value equal to the saturation Q. By default limqin=.false..
• General code improvement and bug fixes.
• Modify dynamics input module. Limit input Q field to have a minimum value of 2.e-12.
• Fixed bug in cloud routines that was generating huge stratiform precip values in the top model level when that level was in the upper stratosphere.
• Modify shneg so that it doesn't issue messages when it fixes the Q field after adjusting it in vdiff().

v3.1 (21 September 1996)

• Changes to the dynamics or physics.
• Added prognostic cloud water parameterization from CCM3.
• General code improvement and bug fixes.
• Updated the dynamics input data module so that dependencies on CCM format data files have been removed. A specification for the dynamics input data module has been written.

v3.0 (19 August 1996)

• Changes to the dynamics or physics.
• The timestepping loop has been reordered, and the most recent versions of the vertical diffusion and convective mass flux parameterizations from CCM3 have been incorporated. The original timestepping order was designed to follow the order of operations in CCM2 (same as CCM3). The reordered timeloop is logically much simpler (the end of a timestep no longer occurs in the middle of the physics scan). The order of operations in the timestep is now advection, vertical diffusion, moist convection, and finally chemistry and wet deposition.

v2.0 (5 January 1995)

• New features.
• Add "restart" capability.
• Modify output facility so that a field may be written to the output history file at any point within the physics loop (in physlic() or in routines called by physlic()).
• Incore version added. This writes the history buffer and the non-advected species buffer incore and is enabled by defining the cpp variable INCORE in the params.h file. In large memory machines, the incore version can result in a substantially more efficient execution.
• General code improvement and bug fixes.
• Modify the history buffer so that instantaneous fields are not written to it. This can save substantial memory.