Seabed morphology and geomorphology of Zeehan Marine Park, south-eastern Australia - Version 1

This data product contains seabed morphology and geomorphology information for a subset area of Zeehan Marine Park. A nationally consistent seabed geomorphology classification scheme was used to map and classify the distribution of key seabed features. The Zeehan Marine Park seabed morphology and geomorphology maps were derived from a 2 m horizontal resolution bathymetry DEM compiled from a multibeam survey undertaken for Parks Australia by the University of Tasmania.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 polygon geometries. Geometric attributes were then used to classify each shape into discrete Morphology Feature types (Dove et. al., 2020; eCat Record 144305). Seabed geomorphology features were interpreted by applying additional datasets and domain knowledge to inform their geomorphic characterisation (Nanson et. al., 2023; eCat Record 147818). Where available, backscatter intensity, seabed imagery, and survey reports supplemented the bathymetry DEM and morphology classifications to inform the geomorphic interpretations.The data product and classification schema are fully described in the accompanying Data Product Specification.Dove, D., Nanson, R., Bjarnadóttir, L. R., Guinan, J., Gafeira, J., Post, A., Dolan, Margaret F.J., Stewart, H., Arosio, R., Scott, G. (2020). A two-part seabed geomorphology classification scheme (v.2); Part 1: morphology features glossary. Zenodo. https://doi.org/10.5281/zenodo.4075248;Huang, Z., Nanson, R., Nichol, S. 2022. Geoscience Australia's Semi-automated Morphological Mapping Tools (GA-SaMMT) for Seabed Characterisation. Geoscience Australia, Canberra. https://dx.doi.org/10.26186/146832Nanson, R., Arosio, R., Gafeira, J., McNeil, M., Dove, D., Bjarnadóttir, L., Dolan, M., Guinan, J., Post, A., Webb, J., Nichol, S. (2023). A two-part seabed geomorphology classification scheme; Part 2: Geomorphology classification framework and glossary (Version 1.0) (1.0). Zenodo. https://doi.org/10.5281/zenodo.7804019

本数据产品涵盖泽汉海洋公园（Zeehan Marine Park）部分区域的海底地貌形态与地貌学信息。本次研究采用全国统一的海底地貌分类方案，对关键海底地貌要素的分布进行制图与分类。泽汉海洋公园的海底地貌形态与地貌学制图成果，源自塔斯马尼亚大学（University of Tasmania）为澳大利亚公园管理局（Parks Australia）开展的多波束测深项目所生成的2米水平分辨率水深数字高程模型（bathymetry DEM）。半自动地理信息系统（GIS）制图工具（GA-SaMMT）；（Huang等，2022；eCat记录146832）被应用于地理信息系统（GIS）环境（ESRI ArcGIS Pro）中的水深数字高程模型（DEM），以绘制多边形范围（地形高地、低地与平面区域）并定量描述多边形几何特征。随后利用几何属性将每个多边形归类为独立的地貌形态要素类型（Dove等，2020；eCat记录144305）。通过结合额外数据集与领域专业知识，对海底地貌要素进行解译以明确其地貌学特征（Nanson等，2023；eCat记录147818）。若有可用数据，反向散射强度、海底影像与测船报告将作为补充，辅助水深数字高程模型与地貌分类结果开展地貌解译工作。本数据产品与分类方案的完整说明，请参见随附的数据产品规范（Data Product Specification）。

参考文献：
Dove, D., Nanson, R., Bjarnadóttir, L. R., Guinan, J., Gafeira, J., Post, A., Dolan, Margaret F.J., Stewart, H., Arosio, R., Scott, G. (2020). 两部分式海底地貌分类方案（版本2）；第一部分：地貌要素术语表. Zenodo. https://doi.org/10.5281/zenodo.4075248;
Huang, Z., Nanson, R., Nichol, S. 2022. 澳大利亚地质科学局半自动地貌制图工具（GA-SaMMT）用于海底特征描述. 堪培拉：澳大利亚地质科学局. https://dx.doi.org/10.26186/146832
Nanson, R., Arosio, R., Gafeira, J., McNeil, M., Dove, D., Bjarnadóttir, L., Dolan, M., Guinan, J., Post, A., Webb, J., Nichol, S. (2023). 两部分式海底地貌分类方案；第二部分：地貌分类框架与术语表（版本1.0）. Zenodo. https://doi.org/10.5281/zenodo.7804019