Australian Marine Physical Environmental Data - Descriptions and Metadata

This report provides detailed metadata for the 37 marine physical environmental variables that were collated or specifically generated by the Marine Biodiversity Hub, which is part of the Commonwealth Environment Research Facilities Program. The work was done at Geoscience Australia and the Marine and Atmospheric Division of CSIRO. The data are required for use in the Hub's surrogacy and predictive modelling research. Bathymetry, geomorphology, seabed sediment and seabed exposure data were produced by Geoscience Australia. Bottom-water and surface-water parameters were produced by CSIRO. For each variable there is a general description, comprehensive metadata and a distribution map. All data were transformed to a common datum, WGS84, and converted to a grid with a cell size of 0.01 degrees. The metadata reports conform to ANZLIC standards.

The data fall into five categories:
1. Bathymetry and geomorphology, derived from the 250 m resolution National Bathymetry Grid at Geoscience Australia;
2. Seabed sediments, derived from the MARS database at Geoscience Australia;
3. Seabed exposure, produced from the output of a seabed shear stress model, GEOMACS, at Geoscience Australia;
4. Bottom-water nutrients and temperature, extracted from the CARS database at CSIRO;
5. Surface-water parameters, derived from satellite images at CSIRO.

本报告提供了由联邦环境研究设施计划下属的海洋生物多样性中心（Marine Biodiversity Hub）整理或专门生成的37项海洋物理环境变量的详细元数据。此项研究工作由澳大利亚地质调查局（Geoscience Australia）以及澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation, CSIRO）海洋与大气分部完成。该数据集旨在支撑该中心的替代指标与预测建模研究。其中，水深测量、地貌学、海底沉积物及海底暴露度数据由澳大利亚地质调查局生成；底层水与表层水参数由澳大利亚联邦科学与工业研究组织生成。
每个变量均附带通用说明、完整元数据及分布图。所有数据均统一转换至WGS84基准面，并被重采样为0.01度分辨率的网格数据。元数据报告符合澳大利亚与新西兰土地信息委员会（ANZLIC）标准。
本数据集共分为五大类别：
1. 水深测量与地貌学数据：源自澳大利亚地质调查局250米分辨率国家水深网格；
2. 海底沉积物数据：源自澳大利亚地质调查局MARS数据库；
3. 海底暴露度数据：基于澳大利亚地质调查局GEOMACS海底剪切应力模型的输出成果生成；
4. 底层水营养盐与温度数据：提取自澳大利亚联邦科学与工业研究组织CARS数据库；
5. 表层水参数数据：源自澳大利亚联邦科学与工业研究组织卫星影像。