From Australian Oceans Data Network
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Hydrographic and nutrient measurements in the vicinity of the Daintree River plume associated with Cyclone Sadie and other high rainfall events in 1994 (north Queensland)

Created 23/06/2025

Updated 23/06/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Water was sampled at three stations located between Port Douglas and Undine Reef and at a single station on the leeward side of Agincourt Reef twice before Cyclone Sadie (January 11 and 18, 1994) and twice after Cyclone Sadie (February 1 and 3, 1994). Water samples were collected with a water bottle from the sea surface and near the bottom at each of these four stations. Salinity was immediately determined using a YSI conductivity meter. Duplicate 10 ml subsamples were collected from each bottle, filtered with disposable syringe filters and stored frozen for later analyses of nitrate and phosphate using a multichannel segmented flow autoanalyzer. Observations of the Daintree River plume were made following a further period of heavy rainfall, which occurred from the 18-20 February, 1994. A series of hydrographic measurements were conducted at eleven stations between Cape Tribulation and Port Douglas on February 21 and 22. At 4 stations close to the mouth of the Daintree River, water samples were collected from two to four different depths using Niskin bottles. Duplicate 10 ml subsamples were obtained, processed as described above, and analysed for dissolved inorganic and organic nitrogen. A 100 ml subsample was also obtained from each bottle, filtered onto a Whatman GF/F glass fibre filter, stored frozen and analysed for chlorophyll by fluorometry. This research was undertaken to gain a greater understanding of the dispersion of flood plumes in the local/regional context. As a result of Cyclone Sadie, between 250 and 400mm of rain fell in areas to the north of Cairns over the period January 29-31, 1994. Another period of heavy rainfall occurred from the 18-20 February, 1994. While this rainfall was less widespread and less intense than that associated with Cyclone Sadie, the Daintree area received about 170 mm of rain on February 18, 1994.

Files and APIs

Additional Info

Field Value
Title Hydrographic and nutrient measurements in the vicinity of the Daintree River plume associated with Cyclone Sadie and other high rainfall events in 1994 (north Queensland)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/5cb66a8b-7547-4b66-91fe-1845152676f2
Contact Point
Australian Ocean Data Network
reception@aims.gov.au
Reference Period 20/11/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        145.461368,
        -16.53333333
      ],
      [
        145.6316667,
        -16.53333333
      ],
      [
        145.6316667,
        -16.03833333
      ],
      [
        145.461368,
        -16.03833333
      ],
      [
        145.461368,
        -16.53333333
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Hydrographic and nutrient measurements in the vicinity of the Daintree River plume associated with Cyclone Sadie and other high rainfall events in 1994 (north Queensland)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/hydrographic-and-nutrient-measurements-in-the-vicinity-of-the-daintree-river-plume-associated-w1