Welcome to the September 2025 update:
September brought improvements to AvaFrame’s regional modeling capabilities and important stability improvements to our core simulation modules. We completed a long-awaited regional workflow integration and addressed critical particle handling issues.
Major Workflow Integration
The highlight of this month was PR #1053 (https://github.com/avaframe/AvaFrame/pull/1053) , which added a complete regional modeling workflow for com1DFA. This substantial contribution by Leon Wagner introduces the new in4 module and expands com7Regional to enable large-scale avalanche simulations across regional terrain datasets. The integration includes comprehensive documentation available at https://docs.avaframe.org/en/regional/moduleCom7Regional.html .
Com1DFA Stability
PR #1180 (https://github.com/avaframe/AvaFrame/pull/1180 ) fixed a critical issue where particles with zero mass (due to detrainment) could cause division-by-zero errors, leading to invalid velocities and cell positions. The module now checks for zero-mass particles and removes them before computational operations, preventing potential crashes in long-running simulations.
Analysis Tools Enhancement
Our AIMEC analysis tool became more robust with PR #1189 (https://github.com/avaframe/AvaFrame/pull/1189) , which now gracefully handles scenarios with zero result rasters. This affects ana3AIMEC, ana4Stats, and out3Plot modules, making analysis workflows more reliable when dealing with incomplete simulation datasets.
Module Refinements
Several focused improvements enhanced specific modules:
Com7Regional Streamlining - PR #1181 (https://github.com/avaframe/AvaFrame/pull/1181 ) consolidated the regional workflow by integrating runSplitInputs.py functionality directly into runCom7Regional.py, simplifying the regional modeling pipeline for QGIS connector scripts.
Com8MoTPSA Enhancement - PR #1187 (https://github.com/avaframe/AvaFrame/pull/1187 ) extended file renaming functionality to entrainment simulation types, improving consistency in output file naming conventions.
Configuration Cleanup - PR #1191 (https://github.com/avaframe/AvaFrame/pull/1191 ) removed unused parameters from the com7Regional configuration file, reducing configuration complexity.
Infrastructure
PR #1186 (https://github.com/avaframe/AvaFrame/pull/1186 ) added new log helper scripts for probabilistic run analysis while removing the deprecated .codeclimate.yml configuration.
Also of note is the ProBE - Project, which in parts uses AvaFrame and has some ongoing Webinars which we highly recommend. For more, see ProBE Website .
See you in October!
Felix
Summary of PRs merged in September 2025:
- PR #1053 - Regional modeling workflow for com1DFA (merged Sep 9)
- PR #1180 - Zero-mass particle handling fix in com1DFA (merged Sep 10)
- PR #1181 - Consolidate com7Regional run scripts (merged Sep 16)
- PR #1186 - Add log helper scripts, remove CodeClimate config (merged Sep 18)
- PR #1187 - Extend renaming for entrainment simType in com8 (merged Sep 25)
- PR #1189 - Allow zero result rasters in AIMEC analysis (merged Sep 24)
- PR #1191 - Remove unused parameters from com7Regional config (merged Sep 25)
Total: 7 pull requests merged