Bathymetry Compilation for Proposed Marine Protected Areas in East Antarctica

The Australian Antarctic Division (AAD) has developed a proposal for the establishment of seven Marine Protected Areas (MPAs) located around east Antarctica for the purposes of marine ecosystem conservation. As seafloor morphology is a key component of marine ecosystems, this bathymetry compilation for the proposed MPAs was produced to support the AAD proposal. All bathymetry data available to Geoscience Australia at the time of compilation were used. This included multibeam and singlebeam acoustic data which were verified and processed to ensure the data were as accurate as possible. Processing included sound velocity corrections, navigation verification and the rejection of erroneous data points. Once processed, the data were gridded to 100m resolution and projected into suitable WGS84 UTM zones. The gridded data was exported into several formats to facilitate ease of use. The formats include xyz files, ESRI rasters, geoTIFs, CARISTM image files and soundings.The data and the technical report are available for download from URLs below.

澳大利亚南极局（Australian Antarctic Division, AAD）提出了一项拟在南极东部海域设立7个海洋保护区（Marine Protected Areas, MPAs）的提案，旨在开展海洋生态系统保护工作。鉴于海底地貌是海洋生态系统的关键构成要素，本数据集针对上述拟建海洋保护区编制了水深地形汇编，以支撑该局的该项提案。
本次汇编采用了数据编制完成时澳大利亚地球科学局（Geoscience Australia）可获取的全部水深测量数据，所涉数据包含经过校验与处理的多波束与单波束声学测深数据，以最大程度保障数据精度。
数据处理流程涵盖声速校正、导航校验以及错误数据点剔除环节。
完成处理后，所有数据被网格化为100米分辨率，并投影至适配的WGS84 UTM分区。
为便于后续使用，网格化数据已导出为多种格式，包括xyz格式文件、ESRI栅格文件、GeoTIFF文件、CARIS图像文件以及测深测点数据。
本数据集及配套技术报告可通过下述链接获取下载。