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Tropical cyclone Gita wind field

Created 17/10/2025

Updated 17/10/2025

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Tropical cyclone Gita impacted the Kingdom of Tonga in February 2018, causing significant damage across the main island of Tongatapu. This dataset is a best estimate of the maximum local gust wind speed across Tongatapu, based on the best-available track information, elevation and land cover data. The data represents the maximum 0.2 second, 10-metre above ground level wind speed at (approximately) 25 metre horizontal resolution. The wind field was generated using: Geoscience Australia's Tropical Cyclone Risk Model - https://github.com/GeoscienceAustralia/tcrm Wind Multipliers code - https://github.com/GeoscienceAusralia/Wind_Multipliers TC Gita track was sourced from the Joint Typhoon Warning Center (http://www.metoc.navy.mil/jtwc/jtwc.html)

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Additional Info

Field Value
Title Tropical cyclone Gita wind field
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/63415a86-94e0-449c-a11e-7eb9b2cdd1ab
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 09/02/2018 - 17/02/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        -175.364,
        -21.28
      ],
      [
        -175.024,
        -21.28
      ],
      [
        -175.024,
        -21.05
      ],
      [
        -175.364,
        -21.05
      ],
      [
        -175.364,
        -21.28
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Tropical cyclone Gita wind field". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/tropical-cyclone-gita-wind-field