High spatial resolution spectral unmixing for mapping ash species across a complex urban environment

Implications for this work suggest that urban forest managers may attain more accurate maps by conducting remote sensing data collections prior to infestation while the trees are still healthy. Where this is not possible, mapping efforts must reflect a range of canopy conditions and include vegetation indices concurrent with reflectance data. The resulting ash species maps provide urban forest managers spatially explicit products to help estimate the extent of possible impacts in their communities, guide the implementation of management and monitoring efforts and provide the basis for planning as EAB continues to spread.