Authors / CoAuthors
Arthur, W.C.
Abstract
The 2018 Tropical Cyclone Hazard Assessment (TCHA18) provides an evaluation of the likelihood and intensity (“how big and how often”) of the occurrence of tropical cyclone winds across the Australian region, covering mainland Australia, islands and adjacent waters. It is a probabilistic evaluation of the expected maximum gust wind speeds with a range of annual exceedance probabilities (or conversely, average recurrence intervals). The assessment is derived using a statistical-parametric model developed by Geoscience Australia called the Tropical Cyclone Risk Model (TCRM). Maximum 0.2-second duration, 10-metre above ground wind speeds are calculated for Standard Australia's AS/NZS 1170.2 (2011) terrain category 2 (0.02 m roughness length) surface conditions, over a 0.02 degree grid across Australia. Maps of average recurrence interval (ARI) wind speeds of 100- and 500-year ARI are provided in a separate product suite.
Product Type
document
eCat Id
123412
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Resource provider
Point of contact
- Contact instructions
- Place and Communities
Digital Object Identifier
Keywords
- ( Discipline )
-
- Tropical cyclone
- ( {1} )
-
- Published_External
- ( {1} )
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- HVC_144680
Publication Date
2018-10-31T02:07:03
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
biennially
Topic Category
geoscientificInformation
Series Information
Record 2018/40
Lineage
See website http://www.ga.gov.au/tcha
Parent Information
Extents
[-35, -5, 100, 165]
Reference System
GDA94 (EPSG:4283)
Spatial Resolution
0.02 degrees
Service Information
Associations
Source Information