Data

Severe Wind Hazard Assessment for South East Queensland - local wind hazard data

Geoscience Australia
Arthur, C. ; Mason, M. ; Ricardo, K.
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26186/147556&rft.title=Severe Wind Hazard Assessment for South East Queensland - local wind hazard data&rft.identifier=10.26186/147556&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The wind hazard climate in South East Queensland is a combination of tropical cyclones, thunderstorms and synoptic storms. This dataset provides estimated average recurrence interval (ARI) or annual exceedance probability (AEP) wind speeds over the region, based on an evaluation of observational (thunderstorms and synoptic winds) and simulated data (tropical cyclones). The tropical cyclone wind hazard was evaluated using Geoscience Australia's Tropical Cyclone Risk Model (TCRM), which provides a spatial representation of the AEP wind speeds arising from tropical cyclones. Thunderstorm wind hazard was evaluated from analysis of observed wind gusts across South East Queensland, aggregated into a single 'superstation' to provide a single representative hazard profile for the region.The resulting combined wind hazard estimates reflect the dominant source of wind hazard in South East Queensland for the most frequent events (exceedance probabilities greater than 1:50) is thunderstorm-generated wind gusts. For rarer events, with exceedance probabilities less than 1:200, TC are the dominant source of extreme gusts. Local effects of topography, land cover and the built environment were incorporated via site exposure multipliers (Arthur & Moghaddam, 2021), which are based on the site exposure multipliers defined in AS/NZS 1170.2 (2021).The local wind hazard maps were used to evaluate the financial risk to residential separate houses in South East Queensland.Wind speeds are provided for average recurrence intervals ranging from 1 year to 10,000 years. No confidence intervals are provided in the data. Maintenance and Update Frequency: notPlannedStatement: Created using https://github.com/GeoscienceAustralia/SWHAQ/blob/master/scripts/apply_wind_multipliers.py, using tropical cyclone hazard data generated by Geoscience Australia, and thundertsorm and synoptic wind hazard data generated by University of Queensland. &rft.creator=Arthur, C. &rft.creator=Mason, M. &rft.creator=Ricardo, K. &rft.date=2022&rft.coverage=westlimit=151; southlimit=-30; eastlimit=154; northlimit=-24; projection=GDA2020 / geographic 2D (EPSG: 7844)&rft.coverage=westlimit=151; southlimit=-30; eastlimit=154; northlimit=-24; projection=GDA2020 / geographic 2D (EPSG: 7844)&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Geoscience) 2022&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_subject=geoscientificInformation&rft_subject=South East Queensland&rft_subject=tropical cyclone&rft_subject=thunderstorm&rft_subject=hazard&rft_subject=severe wind&rft_subject=hazards&rft_subject=Natural hazards&rft_subject=Adverse weather events&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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© Commonwealth of Australia (Geoscience) 2022

Australian Government Security Classification System
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Full description

The wind hazard climate in South East Queensland is a combination of tropical cyclones, thunderstorms and synoptic storms. This dataset provides estimated average recurrence interval (ARI) or annual exceedance probability (AEP) wind speeds over the region, based on an evaluation of observational (thunderstorms and synoptic winds) and simulated data (tropical cyclones).

The tropical cyclone wind hazard was evaluated using Geoscience Australia's Tropical Cyclone Risk Model (TCRM), which provides a spatial representation of the AEP wind speeds arising from tropical cyclones. Thunderstorm wind hazard was evaluated from analysis of observed wind gusts across South East Queensland, aggregated into a single 'superstation' to provide a single representative hazard profile for the region.

The resulting combined wind hazard estimates reflect the dominant source of wind hazard in South East Queensland for the most frequent events (exceedance probabilities greater than 1:50) is thunderstorm-generated wind gusts. For rarer events, with exceedance probabilities less than 1:200, TC are the dominant source of extreme gusts. 

Local effects of topography, land cover and the built environment were incorporated via site exposure multipliers (Arthur & Moghaddam, 2021), which are based on the site exposure multipliers defined in AS/NZS 1170.2 (2021).

The local wind hazard maps were used to evaluate the financial risk to residential separate houses in South East Queensland.

Wind speeds are provided for average recurrence intervals ranging from 1 year to 10,000 years. No confidence intervals are provided in the data.

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Maintenance and Update Frequency: notPlanned
Statement:
Created using https://github.com/GeoscienceAustralia/SWHAQ/blob/master/scripts/apply_wind_multipliers.py, using tropical cyclone hazard data generated by Geoscience Australia, and thundertsorm and synoptic wind hazard data generated by University of Queensland.

Notes

Purpose
Provide a spatial representation of the combined wind hazard (comprised of thunderstorms, synoptic storms and tropical cyclones) over South East Queensland.

Created: 22 12 2022

Issued: 08 03 2023

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154,-24 154,-30 151,-30 151,-24 154,-24

152.5,-27

text: westlimit=151; southlimit=-30; eastlimit=154; northlimit=-24; projection=GDA2020 / geographic 2D (EPSG: 7844)

Subjects
Adverse weather events | Natural hazards | Published_External | South East Queensland | geoscientificInformation | hazard | hazards | severe wind | thunderstorm | tropical cyclone |

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Other Information
Download the data (zip) [9.4 GB]

url : https://d28rz98at9flks.cloudfront.net/147556/147556_00_0.zip

Local wind multipliers for Queensland

local : 129999

Severe Wind Hazard Assessment for South East Queensland - SWHA-SEQ Technical Report

local : 147446

Tropical Cyclone Risk Model

local : 77484

Identifiers