Characterising and Mapping Mangroves in Northern Australia Using Stereo Aerial Photography and Hyperspectral CASI Data

Abstract

For all mangroves in Kakadu National Park in Australia's Northern Territory, ∼ 1 m spatial resolution orthomosaics and Digital Elevation Models (DEMs) were generated. For the West Alligator River, tree density was also estimated from the photography and Compact Airborne Spectrographic Imager (CAST) data were acquired to differentiate and map the main zonations. These datasets combined represent a key baseline against which to observe and quantify future changes in the extent, height, density, species/community composition and also above ground biomass of mangroves resulting from, for example, sea level rise.