r.ros(1grass) on Linux
The text e750190093b0, as Debian 13 (Trixie) shipped it. The page shows this text now.
Generates rate of spread raster maps. Generates three, or four raster map layers showing the base (perpendicular) rate of spread (ROS), the maximum (forward) ROS, the direction of the maximum ROS, and optionally the maximum potential spotting distance for fire spread simulation.