Graz Lagrangian Model

Release Notes (v24.04)

Bug fixes

  • Fix a bug that has been causing concentrations in the building since version 23.11 for flat terrain and certain building configurations.
  • Fix a bug that leads to high wind speeds near the ground when transferring the GRAMM wind profile to the GRAL Grid
  • Correct the plume rise calculation, as since version 23.11 the plume rise is too high for very small point sources

New features

  • Enable the optional usage of AVX512 processor extension for flow field calculations 
  • The application has been transformed to .NET8
    • With .NET8, the current performance improvements and bug fixes are adopted
      A MONO version of the GUI is also available for Linux users
  • The GRAL release is no longer published as all-in-one file by default
    • This means that user must install .NET8 Runtime (Windows OS requires the .NET8 Desktop Runtime) and therefore benefits in several ways
      ▪ Smaller published files
      ▪ Fewer false warnings from anti-virus programs
      ▪ Better performance
      ▪ Individual setting options from Runtime for the respective computer in the *.runtimecon-fig.json file
      ▪ Same compilation for Windows, Linux and MacOS

For windows users, a published version as a single-fill is still available in a separate download

Changes in ...

  • Layout Manager, Screenshot
  • Scale bar and contour map color scale
  • “Select multiple points”-Dialog
  • Enable a user defined path for the emission modulation settings and result files
  • Additional output in the evaluation info forms
  • Rendering contour maps when needed only