Authors / CoAuthors
Cechet, R.P. | Sanabria, L.A.
Abstract
Severe wind accounts for about 40 percent of the total number of buildings damaged by natural disasters in Australia during the 20th Century. Climate change has the potential to significantly affect severe wind hazard and the resulting level of economic loss. We describe a computational framework that has been developed to quantify both the wind hazard and risk due to severe winds. The nationally consistent assessment of severe wind hazard and risk (residential buildings only) is based on innovative modeling techniques, heuristic wind vulnerability assessments and application of Geoscience Australia's National Exposure Information System (NEXIS). We have applied new modelling and analysis techniques to develop a revised understanding of the regional wind hazard across Australia. This modelling has enabled the development of a wind hazard map for the Australian region. Regional wind hazard has been assessed by utilising statistical-parametric models, dynamical downscaling and spatial interpolation techniques allowing the derivation of estimates of wind hazard from three different phenomena - tropical cyclones, thunderstorms and synoptic storms. Across much of the interior of the country, the revised estimates of regional wind speeds are comparable to the regional wind speeds specified in the existing Australian - New Zealand wind loading standard (AS/NZS 1170.2 2010), generally to within 10 percent for the design wind speeds (500-year return period gust wind hazard). The regional wind speeds derived in AS/NZS 1170.2 were determined from analysis of long-term records (observations) of daily maximum gust wind speeds.
Product Type
nonGeographicDataset
eCat Id
71937
Contact for the resource
Custodian
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
-
- GA PublicationAbstract
- ( Theme )
-
- risk assessment
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
- Earth Sciences
-
- Published_Internal
Publication Date
2011-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
unknown
Topic Category
geoscientificInformation
Series Information
Lineage
Unknown
Parent Information
Extents
Reference System
Spatial Resolution
Service Information
Associations
Downloads and Links
Source Information
Source data not available.