Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
Hazelwood, M. & Moore, D., 2012. Regional climate change impact modelling for Mandurah, Western Australia. Record  2012/062. Geoscience Australia, Canberra.

Abstract

This report describes a detailed assessment of coastal vulnerability and infrastructure exposure undertaken for Mandurah local government area (LGA) to complement the analyses in the National Coastal Risk Assessment. The assessment modelled both storm surge and coastal recession. The hydrodynamic storm surge modelling conditions were based on those observed during TC Alby (1978) and included scenarios with the storm track shifted to create maximum impact of the wind field on Mandurah, and sea-level rise scenarios from 0.0 m (current climate) to 1.1 m. Potential shifts in the shoreline position were modelled based on changes in the sediment transport regime under sea-level rise. The resulting inundation from the modelled surge and erosion event was projected onto the coastline to give impact 'footprints' for each event. These footprints were overlaid with built asset data from Geoscience Australia's National Exposure Information System (NEXIS), as well as road, railway and bridge infrastructure. The storm modelling exposure analysis found that if the 1978 Tropical Cyclone Alby storm were to directly impact Mandurah LGA today then approximately 560 buildings are exposed to storm-tide inundation. This exposure increases to nearly 3,000 buildings when factoring in a rise in sea level of 1.1m by 2100. Within the area modelled to be potentially subject to erosion due to sea-level rise by 2030 there are between 140 and 800 buildings. However, by 2100 the range increases to between 2,300 and 4,100 buildings. This study has provided fundamental coastal process predictions that can better enable adaptation plans; and a benchmark of coastal vulnerability to inundation and erosion for the City of Mandurah against which the success of future adaptation initiatives can be measured. With refinements, the modelling methodology presented here is capable of being utilised across Australia to further quantify our coastal vulnerability.
Google map showing geographic bounding box with values North bound -32.455628 East bound 115.788169 West bound 115.606776 South bound -32.801883
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Product Type/Sub Type

dataset - GA Publication - Record

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2012

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Record
geomorphology
geohazards
environmental
coasts
climate
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-32.455628
East bound
115.788169
West bound
115.606776
South bound
-32.801883

Lineage

Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

jpg
pdf
misc

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

b87c4ef1-1f2f-4021-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2012-02-09

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays