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Darwin Harbour Habitat Mapping Program: Rugosity

Created 17/10/2025

Updated 17/10/2025

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This resource contains a rugosity 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 rugosity 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. The data is calculated from the bathymetry data. It represents seabed rugosity at a local seabed. The rugosity is measured as surface area. Higher surface area corresponds with higher seabed rugosity.

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Additional Info

Field Value
Title Darwin Harbour Habitat Mapping Program: Rugosity
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/09ceee3f-2e0f-4d81-9e51-fec7618b6b06
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 01/01/2011 - 01/01/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        130.25,
        -12.77
      ],
      [
        131.0,
        -12.77
      ],
      [
        131.0,
        -12.1
      ],
      [
        130.25,
        -12.1
      ],
      [
        130.25,
        -12.77
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Darwin Harbour Habitat Mapping Program: Rugosity". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/darwin-harbour-habitat-mapping-program-rugosity