Document Title - Geoscience Australia
Document Title - Geoscience Australia
Document Title - Geoscience Australia
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Lord Howe High Resolution Grids<br />
General Bathymetric Chart of the Oceans (GEBCO) grid<br />
The GEBCO grid is a 1 minute of arc global bathymetry and topography data grid. GEBCO is based<br />
on the most recent set of contours contained within the GEBCO Digital Atlas. More information on<br />
the construction of this global grid and the GEBCO Digital Atlas can be found at<br />
http://www.gebco.net/data_and_products/gridded_bathymetry_data/. An extract of the model that<br />
covers the Lord Howe region is shown in Figure 4.<br />
Features of the GEBCO model for the Lord Howe Island region are:<br />
Three seamounts are identified, in addition to the larger Lord Howe volcano.<br />
Islands in the Lord Howe Island group are incorrectly located and are too large.<br />
There is a lack of detail in the representation of the Lord Howe volcano.<br />
There is a missing seamount in the south compared with the other grids.<br />
30.63 o S<br />
160.2 o E<br />
32.6 o S<br />
158.13 o E<br />
Figure 4: The region around Lord Howe Island as represented by the GEBCO 1 minute of arc<br />
grid (position marker approximate only).<br />
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