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Project - Coral Sea Mapping 2021-2025 (AIMS, Parks Australia)

Created 13/03/2025

Updated 13/03/2025

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This project developed a set of high quality GIS datasets of the emergent and shallow marine features (reef boundaries, reef tops, islands, and cays) of the Coral Sea Marine Park (CSMP). The goal of this mapping was to improve the precision and spatial detail of existing reef maps. Features mapped as openly available shapefiles: - Coral atoll platform boundary - outer visible extent combined with available multi-beam bathymetry (100 m depth) - Coral reef boundary - coral substrate, plus connected sand, raised off atoll platform, mapped to 50 - 60 m depth. - Depth contours (5 m and 20 m depth) - Coral cays regions (above mean high water over time) The inspiration for this project was to map the Coral Sea in a manner similar to the existing reef mapping of the Great Barrier Reef Marine Park (GBRMP) and Torres Strait (Lawrey, et al. 2016) to assist with the management of the Coral Sea Marine Park. Mapped reef features were to be allocated permanent identifiers to allow robust communication about reefs where no existing name exists. Reef features were mapped primarily from composite satellite imagery (Sentinel 2, Landsat 8-9 and Sentinel 3) with existing bathymetry surveys used to assist in the interpretation, calibration and validation of the mapping approaches. All features were manually mapped, and reviewed extensively. The boundary of coral reefs previously been only loosely defined making it difficult to reliably map their boundaries in a repeatable manner. In this project we develop more robust definition based on the presence of hard substrate built by coral suitable for hard coral growth. Reef patches are clustered together, using rules, to form the reef boundary at the same scale as what would normally be considered a coral reef. This approach help to ensure consistent and repeatable quality across the manual mapping process. References: Lawrey, E. P., and Stewart, M. (2016) Mapping the Torres Strait Reef and Island Features: Extending the GBR Features (GBRMPA) dataset. Report to the National Environmental Science Programme. Reef and Rainforest Research Centre Limited, Cairns (103pp.).

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Title Project - Coral Sea Mapping 2021-2025 (AIMS, Parks Australia)
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/ee6b7839-85be-4f52-a3e0-8acaceebba40
Contact Point
CSIRO Oceans & Atmosphere
e.lawrey@aims.gov.au
Reference Period 01/08/2021 - 31/03/2025
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Project - Coral Sea Mapping 2021-2025 (AIMS, Parks Australia)". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/project-coral-sea-mapping-2021-2025-aims-parks-australia

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