NSW seabed landforms derived from marine lidar data 2022

Seabed landform features were classified from the New South Wales statewide marine lidar dataset, acquired in 2018 by Fugro Pty Ltd on behalf of the Department of Planning and Environment (data available for download on SEED, see below). Seabed features were extracted from the marine lidar data and classified into seabed landform classes. Classified landform features include reefs, plains, peaks, scarps, depressions and channels. These landforms capture variation in the shape and structure of reef outcrops along the NSW coastal and nearshore environment. \r\nFeatures were classified using the Seabed Landforms Classification Toolset developed for ArcGIS by the Coastal and Marine Unit, DPE (Linklater et al. 2023) which are publicly available on SEED (https://datasets.seed.nsw.gov.au/dataset/seabed-landforms-classification-toolset) and GitHub (https://github.com/LinklaterM/Seabed-Landforms-Classification-Toolset/). \r\n\r\nThe statewide dataset is provided as ArcGIS shapefiles divided into 9 segments along the coast. The data covers 4060 km2, extending from the coastline (0 m AHD) to a maximum of 50 m depth, reaching an average depth of 35 m. Data coverage extends a maximum distance of 9 km offshore, with coverage extending on average 3 km offshore.\r\n\r\nThis dataset provides an understanding of the extent and distribution of submerged reefs along the NSW coast, which contributes fundamental baseline information for managers, users and custodians of the marine environment. \r\n\r\nThis dataset was funded by the Marine Estate Management Authority and NSW Climate Change Fund through the Coastal Management Funding Package. \r\n\r\nPlease cite this dataset as: Linklater, M., Morris, B., Kinsela, M., Ingleton, T. and Hanslow, D. (2022), Exploring patterns of reef distribution along the southeast Australian coast using marine lidar data. Manuscript in preparation. \r\n\r\nNSW statewide marine lidar data – available for download on SEED: https://datasets.seed.nsw.gov.au/dataset/marine-lidar-topo-bathy-2018\r\n\r\nLinklater, M., Morris, B.D. and Hanslow, D.J. (2023), Classification of seabed landforms on continental and island shelves. Frontiers in Marine Science, 10, https://www.frontiersin.org/articles/10.3389/fmars.2023.1258556/full.\r\n\r\nLinklater, M., Ingleton, T. C., Kinsela, M. A., Morris, B. D., Allen, K. M., Sutherland, M. D., & Hanslow, D. J. 2019. Techniques for classifying seabed morphology and composition on a subtropical-temperate continental shelf. Geosciences, 9(3), 141.

本数据集基于新南威尔士州（New South Wales，简称NSW）全州范围海洋激光雷达（marine lidar）数据集开展海底地貌特征解译与分类。该数据集由Fugro私人有限公司（Fugro Pty Ltd）于2018年受新南威尔士州规划与环境部（Department of Planning and Environment）委托采集，数据可通过SEED平台下载（详见下文）。研究人员从海洋激光雷达数据中提取海底特征，并将其归类为不同的海底地貌类型。已分类的地貌特征包括礁体、平原、峰体、陡崖、洼地与水道。这些地貌刻画了新南威尔士州沿海及近岸区域礁体露头的形态与结构变化。
海底特征的分类工作采用了由新南威尔士州规划与环境部海岸与海洋单元（Coastal and Marine Unit, DPE）为ArcGIS开发的海底地貌分类工具集（Seabed Landforms Classification Toolset，Linklater等，2023），该工具集可通过SEED平台（https://datasets.seed.nsw.gov.au/dataset/seabed-landforms-classification-toolset）与GitHub（https://github.com/LinklaterM/Seabed-Landforms-Classification-Toolset/）公开获取。
本全州数据集以ArcGIS形状文件（ArcGIS shapefiles）格式提供，沿海岸分为9个数据分片。数据集覆盖面积达4060平方千米，范围从海岸线（0米澳大利亚高程基准，Australian Height Datum，简称AHD）延伸至最大水深50米，平均水深为35米。数据覆盖的离岸最大距离为9千米，平均离岸覆盖距离为3千米。
本数据集可用于解析新南威尔士州沿海淹没礁体的分布范围与格局，为海洋环境的管理者、使用者与管护者提供基础的基准数据。
本数据集由海洋资产管理局（Marine Estate Management Authority）与新南威尔士州气候变化基金（NSW Climate Change Fund）通过海岸管理资助计划拨款支持。
本数据集的引用格式为：Linklater, M., Morris, B., Kinsela, M., Ingleton, T. 与 Hanslow, D.（2022），《利用海洋激光雷达数据探究澳大利亚东南沿海礁体分布格局》，在编稿件。
新南威尔士州全州海洋激光雷达数据集：可通过SEED平台下载，链接：https://datasets.seed.nsw.gov.au/dataset/marine-lidar-topo-bathy-2018
Linklater, M., Morris, B.D. 与 Hanslow, D.J.（2023），《大陆与岛架海底地貌分类》，《海洋科学前沿》（Frontiers in Marine Science），10卷，https://www.frontiersin.org/articles/10.3389/fmars.2023.1258556/full
Linklater, M., Ingleton, T. C., Kinsela, M. A., Morris, B. D., Allen, K. M., Sutherland, M. D. 与 Hanslow, D. J.（2019），《亚热带-温带大陆架海底地貌与组成分类技术》，《地球科学》（Geosciences），9(3)，第141页。