Bathymetry grid of Lord Howe Island

Geoscience Australia carried out a marine survey on Lord Howe Island shelf (NSW) in 2008 (SS062008) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, rock coring, observation of benthic habitats using underwater towed video, and measurement of ocean tides and wavegenerated currents. Subbottom profile data was also collected to map sediment thickness and shelf stratigraphy. Data and samples were acquired using the National Facility Research Vessel Southern Surveyor. Bathymetric data from this survey was merged with other preexisting bathymetric data (including LADS) to generate a grid covering 1034 sq km. As part of a separate Geoscience Australia survey in 2007 (TAN0713), an oceanographic mooring was deployed on the northern edge of Lord Howe Island shelf. The mooring was recovered during the 2008 survey following a 6 month deployment.lh_4m is an ArcInfo grid of the Lord Howe survey area produced from the processed EM300 bathymetry data of the survey area using the CARIS HIPS and SIPS software.

澳大利亚地质调查局（Geoscience Australia）于2008年针对新南威尔士州豪勋爵岛陆架开展了编号为SS062008的海洋勘测，旨在通过同步采集表层沉积物与底内生物样品、实施岩石取心、利用水下拖曳视频观测底栖生境，以及测量海洋潮汐与浪生流，绘制海底水深地形并刻画底栖环境特征。本次勘测还采集了浅地层剖面数据，以绘制沉积物厚度与陆架地层分布图。勘测数据与样品均通过国家设施研究船"南方考察者号"（Southern Surveyor）获取。本次勘测获取的水深地形数据与其他已有水深地形数据（含LADS）进行融合，生成了覆盖1034平方千米的栅格数据集。作为澳大利亚地质调查局2007年另一项勘测项目（TAN0713）的一部分，一套海洋锚系观测站被部署在豪勋爵岛陆架北缘，并于本次2008年勘测中完成回收，该锚系的部署时长为6个月。lh_4m是基于本次勘测区经处理的EM300水深地形数据，通过CARIS HIPS与SIPS软件生成的豪勋爵岛勘测区ArcInfo栅格数据集。