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2018 National Tropical Cyclone Hazard Assessment 1%/0.2% Annual Exceedance Probability Maps

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Created 20/01/2025

Updated 20/01/2025

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Geoscience Australia has produced a National Tropical Cyclone Hazard Assessment (TCHA18). The 1%/0.2% Annual Exceedance Probability Maps provides 0.2-second duration, 10-metre above ground level gust wind speeds across Australia arising from tropical cyclone events over a 2-km grid, for 1% and 0.2% annual exceedance probability (100- and 500-year annual recurrence interval respectively). Surface conditions are assumed to correspond to terrain category 2 conditions as defined in AS/NZS 1170.2 (2011).

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Title 2018 National Tropical Cyclone Hazard Assessment 1%/0.2% Annual Exceedance Probability Maps
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/667fe856-6b0b-44b1-bcc8-e4144d9409a7
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/01/2018 - 01/01/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        100.0,
        -35.0
      ],
      [
        165.0,
        -35.0
      ],
      [
        165.0,
        -5.0
      ],
      [
        100.0,
        -5.0
      ],
      [
        100.0,
        -35.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Data.gov.au