# This month in AvaFrame - April 2021 edition

## May 5, 2021

Welcome to the April 2021 edition of our monthly update.

Apart from the release of version 0.3, we put a lot of effort into our python/cython dense flow avalanche module com1DFAPy, targeting a swap with com1DFA within the next month:

- com1DFAPy now includes:

  - an additional particle initialisation method: the per depth method

  - the option to use secondary release areas. They are being triggered if particles enter the area of a secondary release area.

  - split simulation types for entrainment and resistance. So far only a combined type existed. This allows for more granular and easier control of different simulation setups.

  - distinguish grid size used for the normal computation and for interpolating the fields from the grid used for neighbour search (kernel smoothing length).

  - an option to remesh the input DEM

  - better output options to reduce computational costs (mainly RAM usage)

  - proper handling of overlapping release areas

The second big block tackles reporting and visualisation:

- output options for visualisation in Paraview

- introduce constraining plots to data plus a buffer zone

- generate report and plots to validate the entrainment

- update benchmark files, ini files and run scripts to new options

- improve Aimec plots (add some statistical information about the error)

And last but not least, this month also saw us also focusing on getting things ready for the EGU:

- a new page was introduced in our docu about testing including an example of a full report of our standard tests. There you’ll also find all available test topographies.

- we presented these tests and our strategy at EGU21, see abstract and publicly available video.

Felix

Want to contact us? Visit our matrix room at: #public:matrix.avaframe.org