Rezatec EO Ground-truthing

Rezatec produced a map of ash and oak woodland with an overlay indicating the stress level of blocks of ash and oak woodland. A small amount of quality assurance has been undertaken to validate the map. This comprised:  A Defra desk-based project using FC photos of ash and oak woodland collected during aerial surveillance to ascertain whether the images aligned with the species level indicated in the Rezatec map.  Feedback from Kew Gardens. The QA indicated that (1) oak mapping appeared to have a high level of accuracy (2) ash mapping appeared to be less accurate which could…