From Australian Oceans Data Network
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Tidally Incised Valleys on Tropical Carbonate Shelves: An Example from the Northern Great Barrier Reef, Australia

Created 05/03/2026

Updated 05/03/2026

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The formation of incised valleys on continental shelves is generally attributed to fluvial erosion under low sea level conditions. However, there are exceptions. A multibeam sonar survey at the northern end of Australia's Great Barrier Reef, adjacent to the southern edge of the Gulf of Papua, mapped a shelf valley system up to 220 m deep that extends for more than 90 km across the continental shelf. Based on observations, we propose a new conceptual model for the formation of tidally incised shelf valleys.

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Field Value
Title Tidally Incised Valleys on Tropical Carbonate Shelves: An Example from the Northern Great Barrier Reef, Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/457fdc20-7682-4da6-a334-0f0b01435f3b
Contact Point
Australian Ocean Data Network
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        142.0,
        -11.0
      ],
      [
        146.0,
        -11.0
      ],
      [
        146.0,
        -7.0
      ],
      [
        142.0,
        -7.0
      ],
      [
        142.0,
        -11.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Tidally Incised Valleys on Tropical Carbonate Shelves: An Example from the Northern Great Barrier Reef, Australia". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/tidally-incised-valleys-on-tropical-carbonate-shelves-an-example-from-the-northern-great-barrie6