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/1.0.0/