Mapping invasive Phragmites australis in the coastal Great Lakes with ALOS PALSAR satellite imagery for decision support

► PALSAR satellite imagery was used to map monotypic stands of invasive Phragmites. ► This is the first U.S. coastal Great Lakes distribution map of Phragmites australis. ► We collected measurements at 1145 wetland field training and validation locations. ► 28% of the randomly selected field locations had some invasive Phragmites present. ► Map shows 24,643 ha of large (> 0.2 ha), dense stands of invasive Phragmites.