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This product provides users with information to understand the geodiversity of seabed features and substrates that characterise the Beagle Marine Park. It can be used to inform benthic habitat mapping and to better predict and understand biodiversity distributions. The product contributes to a nationally consistent seabed morphology and geomorphology mapping schema that can be implemented to inform other regional and national seabed data products.
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:8 0 0 0;"><SPAN>This data product contains geospatial seabed morphology and geomorphology information for the </SPAN><SPAN>Beagle Marine Park </SPAN><SPAN>and is intended for use by Park managers, regulators, the public and other stakeholders. A nationally consistent two-part (two-step) seabed geomorphology classification system was used to map and classify the distribution of key seabed features. In step 1 semi-automated GIS mapping tools (GA-SaMMT; Huang et al., 2022; eCat Record 146832) were applied to a bathymetry digital elevation model (DEM) in a GIS environment (ESRI ArcGIS Pro) to map polygon extents (topographic high, low, and planar) and to quantitatively characterise their geometries. Their geometric attributes were then used to classify each shape into discrete Morphology Feature types (Part 1: Dove et al., 2020; eCat Record 144305). In step 2, the seabed geomorphology was interpreted by applying additional datasets and domain knowledge to inform their geomorphic characterisation (Part 2: Nanson et al., 2023; eCat Record 147818). Where available, backscatter intensity, seabed imagery (AUV and ROV), seabed samples, sub-bottom profiles and survey reports supplement the bathymetry DEM and morphology classifications to inform the geomorphic interpretations.</SPAN></P><P STYLE="margin:8 0 0 0;"><SPAN>The seabed morphology and geomorphology features are derived from an </SPAN><SPAN>30</SPAN><SPAN>m horizontal resolution </SPAN><SPAN>compilaton </SPAN><SPAN>bathymetry </SPAN><SPAN>DEM </SPAN><SPAN>(Beaman et al 2022; eCat Record 140</SPAN><SPAN>7043)</SPAN><SPAN>.</SPAN><SPAN /></P><P STYLE="margin:8 0 0 0;"><SPAN><SPAN>The data product and application schema are fully described in the accompanying Data Product Specification. The product is accessible as GIS feature layers within a file geodatabase, GeoPackage, and as a web map service via the AusSeabed marine data portal.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Commonwealth of Australia (Geoscience Australia)
Nanson, R., Huang, Z., McNeil, M., Carroll, A. Seabed morphology and geomorphology features of the Beagle Marine Park. Geoscience Australia, Canberra. https://pid.geoscience.gov.au/dataset/ga/147976
GA eCat Record 147976
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Creative Commons Attribution 4.0 International Licence</SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>Not to be used for navigation</SPAN></P></DIV></DIV></DIV>
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