NSW Office of Environment and Heritage (OEH) Multi-beam Bathymetry Surveys

Data products from multi-beam bathymetry surveys carried out by the New South Wales Office of Environment and Heritage (OEH). Surveys were conducted in and around NSW Coastal and State Waters, using a mounted GeoAcoustics Geoswath 125KHZ Interferometric sidescan sonar system, by the HABMAP program. The HABMAP program, which was initiated to provide fine scale benthic habitat information for NSW State Waters, initiated surveys to provide a minimum of 5 x 5m bin scale bathymetric and backscatter layers for use in GIS applications. Products include fine-scale bathymetric and relative acoustic backscatter data in several formats. For each survey there is also a "scientific rigour" document describing the origin and processing of the data, and files showing the geographic coverage of the survey (ESRI shapefile and Google KMZ formats).

本数据集源自新南威尔士州环境与遗产局（New South Wales Office of Environment and Heritage, OEH）开展的多波束测深（multi-beam bathymetry）调查成果。该调查由HABMAP项目（HABMAP program）主导实施，作业范围涵盖新南威尔士州沿海及州域管辖水域，采用搭载GeoAcoustics Geoswath 125KHZ干涉式侧扫声呐系统的设备完成数据采集。HABMAP项目初衷是为新南威尔士州州域水域提供精细尺度的底栖生境（benthic habitat）信息，因此发起本次调查，以生成最小格网尺度为5×5米的测深与声学反向散射图层，供地理信息系统（Geographic Information System, GIS）应用使用。本数据集包含多种格式的精细尺度测深数据与相对声学反向散射数据；针对每份调查数据，均配套一份“科学严谨性说明文档”，详述数据来源与处理流程，同时附带展示该次调查地理覆盖范围的文件，格式包括ESRI形状文件（ESRI shapefile）与Google KMZ格式。