Authors / CoAuthors
Arthur, C. | Gray, S. | Krause, C. | Wehner, M. | Ryu, H. | Edwards, M.
Abstract
Consider you are responsible for providing an emergency response in Karratha. There is a category 4 cyclone sweeping towards the coast and Bureau of Meteorology forecasts indicate the cyclone will intensify to category 5 before landfall. The last time a category 5 cyclone came close to Karratha was in 1999, when Cyclone John passed 80 km east of Karratha, sparing it the worst winds. If it had not turned to the southeast prior to landfall, damage to Karratha would have been much worse. Karratha has also grown substantially since then, with close to half the residential buildings constructed after 1997. As a first responder, are you prepared for the consequences of a direct strike? Do you even know what the extent of the impacts might be? What will Karratha look like immediately after the cyclone passes? If emergency preparation decisions were based on past experience, they would likely fall well short of the required action to minimise impacts. The Severe Wind Hazard Assessment project, funded through the WA Natural Disaster Resilience Program, endeavours to provide emergency managers with realistic, modelled scenarios of cyclone impact in WA communities to inform local, regional and state planning for cyclone risk. By analysing hypothetical scenarios, the Department of Fire and Emergency Services can identify and address gaps in the understanding of the impacts of a cyclone, and improve decision-making processes at coordination and control levels. A first step in this process is to develop hypothetical severe tropical cyclone footprints for WA communities. We use a stochastic tropical cyclone model to generate a catalogue of cyclone events, then select TC tracks meeting the criteria for the exercise: events with specific intensities passing directly over communities. Here we present the hazard footprints of these hypothetical storms, and a preliminary analysis of the impacts on residential buildings. Poster presented at the 2018 Amos-ICSHMO Conference Sydney, NSW (https://www.ametsoc.org/index.cfm/ams/meetings-events/ams-meetings/amos-icshmo-2018/)
Product Type
document
eCat Id
116183
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
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- Contact instructions
- Space Division
Keywords
- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
- ( Discipline )
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- Atmospheric SciencesEarth SciencesMeteorologyNatural Hazards
- ( Project )
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- Severe Wind Hazard Assessment
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- Tropical cyclone impact scenarios
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- Tropical cyclone wind footprint
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- Published_External
Publication Date
2024-02-22T00:34:51
Creation Date
2018-02-05T00:00:00
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Status
completed
Purpose
Technical poster for AMOS 2018 Conference
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Australian Meteorological and Oceanographic Society (AMOS) and the American Meteorological Society (AMS) (AMOS-ICSHMO 2018, 5-9 February 2018 Sydney, NSW
Lineage
Technical poster produced for the AMOS 2018 Conference. Poster in relation to Severe Wind Hazard Assessment NDRP project with DFES, WA.
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Extents
[-44.00, -9.00, 154.00, 112.00]
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Spatial Resolution
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Associations
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