Darwin Harbour Habitat Mapping Program: Predicted surface Calcium Carbonate content in sediments

This resource contains a predicted calcium carbonate content 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 predicted calcium carbonate content 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 previous surveys GA4425 and GA0333 collected by GA, AIMS, NTG-DENR and Darwin Port Authority.

本数据集包含大达尔文港（greater Darwin Harbour）区域的预测碳酸钙含量栅格数据，该数据为达尔文港与拜诺港（Bynoe Harbour）海底基线测绘项目的组成部分。本项目由INPEX牵头的Ichthys LNG项目所提供的补偿资金资助北领地政府环境与自然资源部（Northern Territory Government’s Department of Environment and Natural Resources，以下简称NTG-DENR），并由澳大利亚地球科学局（Geoscience Australia，以下简称GA）与澳大利亚海洋科学研究所（Australian Institute of Marine Science，以下简称AIMS）共同注资。本项目旨在通过整理与采集基线数据，加深对达尔文港及拜诺港海域海洋环境的认知，此类基线数据可用于制作专题生境地图，并为海洋资源管理决策提供依据。本次预测的碳酸钙含量栅格数据，整合了GA、AIMS与NTG-DENR在2011至2017年间开展的多项调查数据，包括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），同时补充了GA、AIMS、NTG-DENR与达尔文港务局此前采集的GA4425与GA0333调查数据。