A high-resolution remotely sensed benthic habitat map of the Qatari coastal zone

A comprehensive, high resolution, ground truthed benthic habitat map has been completed for Qatar's coastal zone and Halul Island. The objectives of this research were to; 1. Systematically compare and contrast pixel- and object-based classifiers for benthic mapping in a limited focus area and then to, 2. Apply these learnings to develop an accurate high resolution benthic habitat map for the entirety of the Qatari coastal zone. Results indicate object-based methods proved more efficient and accurate when compared to pixel based classifiers. The developed country-wide map covers 4500 km2 and underscores the complex interplay of seagrass, macroalgal, and reefal habitats, as well as areas of expansive mangrove forests and microbial mats. The map developed here is a first of its kind in the region. Many potential applications exist for the datasets collected to provide fundamental information that can be used for ecosystem-based management decision making. [Display omitted] •Acquired hi-resolution, atmospheric/water corrected satellite imagery of coastal zone•Habitat map trained and validated with ground truthed data•Compared accuracy/efficiency of pixel- and object-based habitat mapping•Object based work-flow presented the best results and was applied to the coastal zone.•A meter resolution, habitat map with 26 classes was completed for all of Qatar's coast.