Darwin Harbour Habitat Mapping Program: Morphology Surfaces

The seafloor morphology mapping approach used to derive this dataset follows Geoscience Australia’s draft National Seafloor GeoMorphology (NSGM) mapping scheme (Nanson and Nichol, 2018). The NSGM scheme is an extension of the Dove et al. (2016) approach, which characterises the seafloor in two sequential parts: Part 1 maps the seafloor Morphology (shape) using bathymetry data, and Part 2 uses additional data to interpret seafloor Geomorphology for those mapped morphological shapes. Part 1 of the NSGM scheme was applied to the project dataset, and consists of three hierarchical levels: Province, Surface and Feature. This dataset contains Surface shapefiles that comprise three categories: Plane (10 degrees).This dataset is published with the permission of the CEO, Geoscience Australia

用于生成本数据集的海底地貌制图方法，遵循澳大利亚地质调查局（Geoscience Australia）草拟的《国家海底地貌（National Seafloor GeoMorphology, NSGM）制图方案》（Nanson与Nichol，2018）。该NSGM方案是Dove等人（2016）提出方法的延伸，该方法将海底地貌制图分为两个连续阶段：第一阶段依托测深数据绘制海底形态（形状）分布图；第二阶段则借助额外数据集，针对已绘制的形态类型解读海底地貌学特征。本数据集应用了NSGM方案的第一阶段，其包含三级层级体系：省域（Province）、地表单元（Surface）与地貌要素（Feature）。本数据集包含三类地表形状文件（shapefile），类别涵盖平面（10°）。本数据集经澳大利亚地质调查局首席执行官授权发布。