Geomorphology of the Australian Margin and Adjacent Seafloor

This data set provides outlines for the maximum spatial extent of seabed geomorphic units for Australia's Exclusive Economic Zone, including the offshore island territories, but excluding Australian Antarctic Territory. Twenty-one geomorphic feature types were identified and mapped, following definitions published by the International Hydrographic Office (IHO, 2001). Value: The geomorphology of the seabed is used to constrained surface geology of the sea floor, important in resource exploration, marine zone management and for understanding the physical environment Scope: The area covered includes the seafloor within the Australian marine jurisdiction surrounding the Australian mainland and island territories of Christmas, Cocos (Keeling), Macquarie, and Norfolk Islands (Heap & Harris 2008).

该数据集提供了澳大利亚专属经济区（Exclusive Economic Zone）海床地貌单元最大空间范围的轮廓，涵盖离岸岛屿领土，但不包括澳大利亚南极领地。依据国际水道测量组织（International Hydrographic Office，IHO，2001）发布的定义，共识别并绘制了21种地貌特征类型。

价值：海床地貌可用于约束海底表层地质，这在资源勘探、海域管理及物理环境认知中具有重要意义。

范围：覆盖区域包括澳大利亚大陆及圣诞岛、科科斯（基林）群岛、麦夸里岛和诺福克岛等岛屿领土周边的澳大利亚海洋管辖权内的海底（Heap & Harris 2008）。