From Australian Oceans Data Network
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A long-term dataset of tidal anomalies for New South Wales, Australia

Created 23/06/2025

Updated 23/06/2025

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Hourly and 15-minute ocean water levels from New South Wales (NSW) coast were provided by Manly Hydraulics Laboratory (MHL) and Australian Bureau of Meteorology (BOM) data for this region. The organisations collect coastal water levels from different ocean tide gauge types that include: onshore bay, onshore river entrance, and offshore open ocean. However, the onshore river entrance gauges are susceptible to large peaks due to rainfall and the offshore open ocean gauges lack a persistent datum. Therefore, the datasets were adjusted to the vertical Australian Height Datum (AHD) and had the rainfall-related peaks removed from the records. Tidal anomalies, which represent the difference between observed water levels and the predicted tide were obtained through the Unified Tidal Analysis and Prediction model (Utide). The aim of the study is to compile a high-quality set of residuals consistent in datum. This data collection accompanies a data descriptor paper in the 'Data' Journal, it has been assigned a DOI and will be maintained in perpetuity by the Australian Ocean Data Network (AODN).

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Additional Info

Field Value
Title A long-term dataset of tidal anomalies for New South Wales, Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/f24b0396-6eb1-4d03-b9c0-417a76a1b435
Contact Point
Australian Ocean Data Network
Cristina.Viola@uon.edu.au
Reference Period 28/12/2020 - 29/12/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        148.978612879,
        -37.6381653395
      ],
      [
        154.097753504,
        -37.6381653395
      ],
      [
        154.097753504,
        -27.9
      ],
      [
        148.978612879,
        -27.9
      ],
      [
        148.978612879,
        -37.6381653395
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "A long-term dataset of tidal anomalies for New South Wales, Australia". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/a-long-term-dataset-of-tidal-anomalies-for-new-south-wales-australia