Absorption of particulate matter by leafs

This model aims to understand the interaction between particulate matter and leaves of trees. The particles collide with the leaf and can either be absorbed with a certain probability, otherwise they bounce off it. The absorptions are detected in a counter. The movement of the particles depends mainly on the strength and direction of the wind and the air temperature. They also show a certain random movement, but the proportion is negligible. In a collision with the leaf, the particles are absorbed with a certain probability (absorption-probability), otherwise repelled.
This is a companion discussion topic for the original entry at https://www.comses.net/codebases/9e1be4a9-222f-4909-8a72-74972c853b2d/releases/1.1.0/