Document Title - Geoscience Australia
Document Title - Geoscience Australia
Document Title - Geoscience Australia
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Lord Howe High Resolution Grids<br />
Executive Summary<br />
Lord Howe Island lies approximately 580 km off the northern coast of New South Wales. It is a<br />
volcanic island with a shallow (20 – 120 m) shelf; a fringing coral reef lies on its western shore.<br />
Detailed bathymetric data are needed to better understand the marine environment. These data<br />
provide useful insights into physical processes that act on the seabed and reveal the location of<br />
different types of habitats, especially relict reef structures. The final bathymetric models will enable<br />
the modelling of tsunami as these interact with the shelf, reef and the coast.<br />
This report describes the methodology employed in creating detailed bathymetric grids of the Lord<br />
Howe Island region. It covers data collation, quality control and gridding. Descriptions are provided<br />
for each dataset employed, the methods used to integrate the different datasets and the attributes of<br />
the new bathymetry models.<br />
Four new bathymetry grids are presented, including grids that integrate bathymetry with the island’s<br />
topography.<br />
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