Darwin Harbour Habitat Mapping Program: High resolution backscatter grid

This resource contains a multibeam backscatter grid for the greater Darwin Harbour region as part of a baseline seabed mapping program of Darwin Harbour and Bynoe Harbour. This project was funded through offset funds provided by an INPEX-led Ichthys LNG Project to the Northern Territory Government’s Department of Environment and Natural Resources (NTG-DENR) with co-investment from Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS). The intent of this program is to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline data that enable the creation of thematic habitat maps and information to underpin marine resource management decisions. The backscatter grid was derived from a compilation of multiple surveys undertaken by GA, AIMS and NTG-DENR between 2011 and 2017, including GA0333 (Siwabessy et al., 2015), GA0341 (Siwabessy et al., 2015), GA0351/SOL6187 (Siwabessy et al., 2016), GA4452/SOL6432 (Siwabessy et al., 2017), GA0356 (Radke et al., 2017), and GA0358 and GA0359 (Radke et al., 2018), adding to those from a previous survey GA0333 collected by GA, AIMS and NTG-DENR.

本数据集包含大达尔文港（greater Darwin Harbour）区域的多波束反向散射网格（multibeam backscatter grid）数据，该数据为达尔文港与拜诺港（Bynoe Harbour）海底底质基线测绘项目的组成部分。本项目由INPEX牵头的伊契斯液化天然气（Ichthys LNG）项目提供抵消资金，拨付至北领地政府环境与自然资源部（NTG-DENR），并由澳大利亚地球科学局（Geoscience Australia, GA）与澳大利亚海洋科学研究所（Australian Institute of Marine Science, AIMS）联合出资。本测绘项目旨在通过整理与采集基线数据，深化对达尔文港与拜诺港区域海洋环境的认知，进而生成专题生境地图及相关信息，为海洋资源管理决策提供支撑。该多波束反向散射网格数据由2011年至2017年间GA、AIMS与NTG-DENR开展的多份勘测成果整合编制而成，涵盖GA0333（Siwabessy等，2015）、GA0341（Siwabessy等，2015）、GA0351/SOL6187（Siwabessy等，2016）、GA4452/SOL6432（Siwabessy等，2017）、GA0356（Radke等，2017）以及GA0358与GA0359（Radke等，2018），并补充了此前由GA、AIMS与NTG-DENR采集的GA0333号勘测相关数据。