AusSeabed Bathymetry Holdings

This dataset represents the current extent of bathymetry datasets held by AusSeabed as of January 2019. This dataset is live and will continue to be augmented as coverage is supplied from respective AusSeabed partners. Surveys have been conducted by a wide range of organisations and countries, both inside and outside of Australia's EEZ and for various purposes. Each polygon contains metadata describing the nature of data collection, including details of the survey, as well as the principle investigator of the project. Not all surveys are currently available for download; if available, the Data Access URL attribute will indicate how to access the survey data. Polygons are based on a 500m gridding of the survey data, so may not be representative of the true survey extent when viewed at large scale.

本数据集呈现了截至2019年1月由AusSeabed所持有的全部测深（bathymetry）数据集的当前覆盖范围。本数据集为动态更新版本，后续将随着各AusSeabed合作方提交的覆盖数据持续扩充完善。各类机构与多国均在澳大利亚专属经济区（Exclusive Economic Zone, EEZ）内外开展过测深作业，作业目的涵盖多个领域。每个多边形要素（polygon）均包含描述数据采集性质的元数据，涵盖测深作业详情以及项目首席研究员的相关信息。目前并非所有测深数据均可下载；若数据可获取，数据访问URL（Data Access URL）属性项将说明获取测深数据的具体方式。多边形要素基于测深数据的500米网格构建，因此在大尺度视图下，其可能无法准确反映实际的测深作业覆盖范围。