From Australian Oceans Data Network
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Benthic communities and geomorphic zones of Heron Reef

Created 13/03/2025

Updated 13/03/2025

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Providing accurate maps of coral reefs where the spatial scale and labels of the mapped features correspond to map units appropriate for examining biological and geomorphic structures and processes is a major challenge for remote sensing. The objective of this work is to assess the accuracy and relevance of the process used to derive geomorphic zone and benthic community zone maps for three western Pacific coral reefs produced from multi-scale, object-based image analysis (OBIA) of high-spatial-resolution multi-spectral images, guided by field survey data. Three Quickbird-2 multi-spectral data sets from reefs in Australia, Palau and Fiji and georeferenced field photographs were used in a multi-scale segmentation and object-based image classification to map geomorphic zones and benthic community zones. A per-pixel approach was also tested for mapping benthic community zones. Validation of the maps and comparison to past approaches indicated the multi-scale OBIA process enabled field data, operator field experience and a conceptual hierarchical model of the coral reef environment to be linked to provide output maps at geomorphic zone and benthic community scales on coral reefs. The OBIA mapping accuracies were comparable with previously published work using other methods; however, the classes mapped were matched to a predetermined set of features on the reef.

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Title Benthic communities and geomorphic zones of Heron Reef
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/c1f3e590-e603-417b-9934-d9d6da0089e2
Contact Point
CSIRO Oceans & Atmosphere
S.Phinn@uq.edu.au
Reference Period 18/12/2023
Geospatial Coverage {"type": "Polygon", "coordinates": [[[151.89883, -23.44915], [151.924951, -23.44915], [151.924951, -23.43232], [151.89883, -23.43232], [151.89883, -23.44915]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Benthic communities and geomorphic zones of Heron Reef". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/benthic-communities-and-geomorphic-zones-of-heron-reef

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