An integrated field and remote sensing approach for mapping seagrass cover, Moreton Bay, Australia

摘要: Creating accurate maps of seagrass cover is a challenging procedure in coastal waters with variable water clarity and depths. This paper presents an approach for mapping from data sources commonly collected by natural resource management agencies responsible environments. The aim the study was to develop classes field and/or image area carried out Moreton Bay eastern Australia. A Landsat 5 Thematic Mapper satellite acquired same August 2004. were used map exposed inter-tidal clear shallow areas depths 3 m. Field survey collected, July – 2004, deep (> m) turbid sub-tidal areas, using: real time video, snorkeller observations transect surveys . resulting combined into single layer polygons, as existing programs each polygon assigned one five (0 %, 1-25 25-50 50-75 75-100 %). As independent not available accuracy assessment, reliability assessment indicated that > 75 percent mapped high categorical reliability. Most previously published projects covered 1000 km 2 ) monitoring management..