Backscatter grid of the southwestern block of the Jervis Bay

Geoscience Australia carried out marine surveys in Jervis Bay (NSW) in 2007, 2008 and 2009 (GA303, GA305, GA309, GA312) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments (for textural and biogeochemical analysis) and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wavegenerated currents. Data and samples were acquired using the Defence Science and Technology Organisation (DSTO) Research Vessel Kimbla. Bathymetric mapping, sampling and tide/wave measurement were concentrated in a 3x5 km survey grid (named Darling Road Grid, DRG) within the southern part of the Jervis Bay, incorporating the bay entrance. Additional sampling and stills photography plus bathymetric mapping along transits was undertaken at representative habitat types outside the DRG. south_1m is an ArcGIS layer of the backscatter grid of the southwestern block of the Jervis Bay produced from the processed EM3002 and EM3002D backscatter data of the survey area using the CMST-GA MB Process This dataset is a contribution to the CERF Marine Biodiversity Hub.

澳大利亚地球科学局（Geoscience Australia）于2007年、2008年及2009年在新南威尔士州（New South Wales, NSW）的杰维斯湾开展海洋调查（项目编号GA303、GA305、GA309、GA312），旨在绘制海床水深地图，并通过同步采集表层沉积物（用于纹理与生物地球化学分析）与底内生物样本、利用水下拖曳式视频及静态摄影观测底栖生境、测量海洋潮汐与浪生流，以表征底栖环境。本数据集及样本均由国防科学技术组织（Defence Science and Technology Organisation, DSTO）的“Kimbla”号研究船采集获取。水深测绘、样本采集及潮汐/波浪测量工作均集中于杰维斯湾南部一块名为达令路网格（Darling Road Grid, DRG）的3×5公里调查网格内，该网格涵盖海湾入口区域。项目组还在达令路网格以外的典型生境类型沿线开展了补充采样、静态摄影以及过境航线水深测绘工作。south_1m是基于调查区域经处理的EM3002与EM3002D反向散射数据，通过CMST-GA MB Process生成的杰维斯湾西南区块反向散射网格的ArcGIS图层。本数据集为CERF海洋生物多样性中心（CERF Marine Biodiversity Hub）的贡献数据。